20-F

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington D.C. 20549

FORM 20-F

¨	REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934
OR
x	ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
for the fiscal year ended December 31, 2017
OR
¨	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
OR
¨	SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission file number 001-33632

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

(Exact name of Registrant as specified in its charter)

Bermuda

(Jurisdiction of incorporation or organization)

73 Front Street

Hamilton, HM 12, Bermuda

(Address of principal executive offices)

Jane Sheere

73 Front Street

Hamilton, HM 12, Bermuda

+1-441-294-3309

(Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person)

Securities registered pursuant to Section 12(b) of the Act:

Title of class	Name of each exchange on which registered
Limited Partnership Units	New York Stock Exchange; Toronto Stock Exchange

Securities registered or to be registered pursuant to Section 12(g) of the Act:

None

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:

None

Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report:

276,572,900 Limited Partnership Units as of December 31, 2017

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.        Yes x No ¨

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.        Yes ¨ No x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.        Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).     Yes x No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer or an emerging growth company. See definition of “accelerated filer”, “large accelerated filer” and “emerging growth company” in Rule 12b-2 of the Exchange Act (Check one)

Large accelerated filer x Accelerated filer ¨ Non-accelerated filer ¨ Emerging growth company ¨

If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act ¨

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:
¨ U.S. GAAP	x International Financial Reporting Standards as issued by the International Accounting Standards Board	¨ Other

If “Other” has been checked in response to the previous question indicate by check mark which financial statement item the registrant has elected to follow.        Item 17 ¨ Item 18 ¨

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).   Yes ¨ No x

TABLE OF CONTENTS

			PAGE
INTRODUCTION AND USE OF CERTAIN TERMS			1
FORWARD-LOOKING STATEMENTS			4
PART I			9
Item 1.	IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS		9
Item 2.	OFFER STATISTICS AND EXPECTED TIMETABLE		9
Item 3.	KEY INFORMATION		9
	3.A	SELECTED FINANCIAL DATA	9
	3.B	CAPITALIZATION AND INDEBTEDNESS	11
	3.C	REASONS FOR THE OFFER AND USE OF PROCEEDS	11
	3.D	RISK FACTORS	11
Item 4.	INFORMATION ON THE COMPANY		55
	4.A	HISTORY AND DEVELOPMENT OF BROOKFIELD INFRASTRUCTURE	55
	4.B	BUSINESS OVERVIEW	68
	4.C	ORGANIZATIONAL STRUCTURE	87
	4.D	PROPERTY, PLANT AND EQUIPMENT	90
Item 4A.	UNRESOLVED STAFF COMMENTS		90
Item 5.	OPERATING AND FINANCIAL REVIEW AND PROSPECTS		91
	5.A	OPERATING RESULTS	98
	5.B	LIQUIDITY AND CAPITAL RESOURCES	130
	5.C	RESEARCH AND DEVELOPMENT	142
	5.D	TREND INFORMATION	142
	5.E	OFF BALANCE SHEET ARRANGEMENTS	143
	5.F	TABULAR DISCLOSURE OF CONTRACTUAL OBLIGATIONS	144
	5.G	SAFE HARBOUR	144
Item 6.	DIRECTORS AND SENIOR MANAGEMENT		144
	6.A	DIRECTORS AND SENIOR MANAGEMENT	144
	6.B	COMPENSATION	153
	6.C	BOARD PRACTICES	153
	6.D	EMPLOYEES	158
	6.E	SHARE OWNERSHIP	158
Item 7.	MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS		159
	7.A	MAJOR SHAREHOLDERS	159
	7.B	RELATED PARTY TRANSACTIONS	159
	7.C	INTEREST OF EXPERTS AND COUNSEL	171
Item 8.	FINANCIAL INFORMATION		171
	8.A	CONSOLIDATED STATEMENTS AND OTHER FINANCIAL INFORMATION	171
	8.B	SIGNIFICANT CHANGES	171
Item 9.	THE OFFER AND LISTING		171
	9.A	PRICING HISTORY	171
	9.B	PLAN OF DISTRIBUTION	173
	9.C	MARKET	173
	9.D	SELLING SHAREHOLDERS	173
	9.E	DILUTION	173
	9.F	EXPENSES OF THE ISSUE	173

i

Item 10.	ADDITIONAL INFORMATION		173
	10.A	SHARE CAPITAL	173
	10.B	MEMORANDUM AND ARTICLES OF ASSOCIATION	174
	10.C	MATERIAL CONTRACTS	202
	10.D	EXCHANGE CONTROLS	204
	10.E	TAXATION	204
	10.F	DIVIDENDS AND PAYING AGENTS	239
	10.G	STATEMENT BY EXPERTS	239
	10.H	DOCUMENTS ON DISPLAY	240
	10.1	SUBSIDIARY INFORMATION	240
Item 11.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT NON-PRODUCT RELATED MARKET RISK		240
Item 12.	DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES		240
PART II			241
Item 13.	DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES		241
Item 14.	MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS		241
Item 15.	CONTROLS AND PROCEDURES		241
Item 16A.	AUDIT COMMITTEE FINANCIAL EXPERT		242
Item 16B.	CODE OF ETHICS		242
Item 16C.	PRINCIPAL ACCOUNTANT FEES AND SERVICES		242
Item 16D.	EXEMPTIONS FROM THE LISTING STANDARDS FOR AUDIT COMMITTEE		243
Item 16E.	PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASER		243
Item 16F.	CHANGE IN REGISTRANT'S CERTIFYING ACCOUNTANT		244
Item 16G.	CORPORATE GOVERNANCE		244
Item 16H.	MINE SAFETY DISCLOSURES		244
PART III			245
Item 17.	FINANCIAL STATEMENTS		245
Item 18.	FINANCIAL STATEMENTS		245
Item 19.	EXHIBITS		245

ii

INTRODUCTION AND USE OF CERTAIN TERMS

Unless the context requires otherwise, when used in this annual report on Form 20-F, the terms “Brookfield Infrastructure”, “we”, “us” and “our” refer to Brookfield Infrastructure Partners L.P., collectively with the Holding LP, the Holding Entities and the operating entities (each as defined below). All dollar amounts contained in this annual report on Form 20-F are expressed in U.S. dollars, unless specified otherwise, and references to “dollars”, “$”, “US$” or “USD” are to U.S. dollars, all references to “C$” or “CAD” are to Canadian dollars, all references to “A$” or “AUD” are to Australian dollars, all references to “CLP” are to Chilean pesos, all references to “COP” are to Colombian pesos, all references to “reais”, “BRL” or “R$” are to Brazilian reais, all references to “rupees”, “INR” or “I$” are to Indian rupees, and all references to “UF” are to Unidad de Fomento which is an inflation indexed Chilean peso monetary unit that is set daily, on the basis of the prior month’s inflation rate. In addition, all references to “£” or “GBP” are to pound sterling, all references to “NZD” are to New Zealand dollars, all references to “€” or “EUR” are to Euros, all references to “PEN” are to Peruvian Neuvo Sol and, unless the context suggests otherwise, references to:

• “Brookfield” are to Brookfield Asset Management and any affiliate of Brookfield Asset Management, other than us;

• “Brookfield Asset Management” are to Brookfield Asset Management Inc.;

• our “current operations” are to the businesses in which we hold an interest as described in Item 4.B “Business Overview”;

• our “communications infrastructure operations” are to our interest in French communication tower infrastructure operations, as described in Item 4.B “Business Overview—Our Operations—Communications Infrastructure—Overview”;

• our “energy operations” are to our interest in North American gas transmission operations in the U.S., North American natural gas storage operations in the U.S. and Canada, North American district energy operations in the U.S. and Canada, and Australian energy distribution operations, as described in Item 4.B “Business Overview—Our Operations—Energy—Overview”;

• our “General Partner” are to Brookfield Infrastructure Partners Limited, which serves as our partnership’s general partner;

• “Holding Entities” are to certain subsidiaries of the Holding LP, from time-to-time, through which we hold all of our interests in the operating entities;

• the “Holding LP” are to Brookfield Infrastructure L.P.;

• the “Infrastructure General Partner” are to Brookfield Infrastructure Special GP Limited, which serves as the general partner of the Infrastructure Special LP;

• the “Infrastructure Special LP” are to Brookfield Infrastructure Special L.P., a subsidiary of Brookfield Asset Management, which is the special general partner of the Holding LP and “Special General Partner Units” refers to the units of the Holding LP that the Infrastructure Special LP holds in such capacity;

• “Licensing Agreements” are to the licensing agreements described in Item 7.B “Related Party Transactions—Licensing Agreements”;

• our “Limited Partnership Agreement” are to the amended and restated limited partnership agreement of our partnership, as amended from time to time;

Brookfield Infrastructure 1

• the “managing general partner” are to our partnership in its capacity as managing general partner of the Holding LP and “Managing General Partner Units” refers to the units of the Holding LP that our partnership holds in such capacity;

• “Master Services Agreement” are to the amended and restated master services agreement dated as of March 13, 2015, among the Service Recipients, Brookfield Asset Management, the Service Provider and others, as described in Item 6.A “Directors and Senior Management—Our Master Services Agreement”;

• “Merger Transaction” are to our acquisition of the ownership interests in Prime that were not already held by us, which was completed on December 8, 2010;

• “operating entities” are to the entities which directly or indirectly hold our current operations and assets that we may acquire in the future, including any assets held through joint ventures, partnerships and consortium arrangements;

• our “partnership” are to Brookfield Infrastructure Partners L.P.;

• “Prime” are to Prime Infrastructure, known collectively as Babcock & Brown Infrastructure Limited and Babcock & Brown Infrastructure Trust, or BBI, prior to its recapitalization on November 20, 2009;

• “rate base” are to a regulated or notionally stipulated asset base;

• the “Redemption-Exchange Mechanism” are to the mechanism by which Brookfield may request redemption of its limited partnership interests in the Holding LP in whole or in part in exchange for cash, subject to the right of our partnership to acquire such interests (in lieu of such redemption) in exchange for units of our partnership, as more fully set forth in Item 10.B “Memorandum and Articles of Association—Description of the Holding LP’s Limited Partnership Agreement—Redemption-Exchange Mechanism”;

• “Redeemable Partnership Unit” is a limited partnership unit of the Holding LP that has the rights of the Redemption-Exchange Mechanism. See Item 10.B “Memorandum and Articles of Association—Description of the Holding LP’s Limited Partnership Agreement”;

• “Relationship Agreement” are to the amended and restated relationship agreement dated as of March 28, 2014, as amended from time to time, by and among our partnership, the Holding LP, the Holding Entities, the Service Provider and Brookfield Asset Management, as described in Item 7.B “Related Party Transactions—Relationship Agreement”;

• the “Service Provider” are to Brookfield Infrastructure Group L.P., Brookfield Asset Management Private Institutional Capital Adviser (Canada), LP, Brookfield Asset Management Barbados Inc., Brookfield Global Infrastructure Advisor Limited, Brookfield Infrastructure Group (Australia) Pty Limited and, unless the context otherwise requires, includes any other affiliate of Brookfield Asset Management that provides services to us pursuant to the Master Services Agreement or any other service agreement or arrangement;

• “Service Recipients” are to our partnership, the Holding LP and certain of the Holding Entities in their capacity as recipients of services under the Master Services Agreement;

• “spin-off” are to the issuance of the special dividend by Brookfield Asset Management to its shareholders of 35,016,762 of our units on January 31, 2008;

2 Brookfield Infrastructure

• our “transport operations” are to our interests in Australian and Brazilian rail operations, port operations in the U.S., the U.K., Europe, Australia, and New Zealand, toll road operations in Chile, Brazil, Peru and India, as described in Item 4.B “Business Overview—Our Operations—Transport—Overview”;

• the sale of our Chilean electricity transmission operations means the transaction pursuant to which Brookfield Infrastructure has entered into definitive agreements to sell its 27.8% interest in ETC Transmission Holdings, S.L. the parent company of Transelec S.A., being Brookfield Infrastructure’s regulated electricity transmission operations in Chile, with subsidiaries in Peru, to China Southern Power Grid International (HK) Co., Ltd. Completion of this transaction is subject to certain closing conditions, third party consents and regulatory approvals;

• our “units” are to the limited partnership units in our partnership other than the preferred units, references to our “preferred units” are to preferred limited partnership units in our partnership and references to our “unitholders” and “preferred unitholders” are to the holders of our units and preferred units, respectively;

• “Class A Preferred Units”, “Series 1 Preferred Units”, “Series 2 Preferred Units”, “Series 3 Preferred Units”, “Series 4 Preferred Units”, “Series 5 Preferred Units”, “Series 6 Preferred Units”, “Series 7 Preferred Units”, “Series 8 Preferred Units”, “Series 9 Preferred Units” and “Series 10 Preferred Units” are to cumulative class A preferred limited partnership units, cumulative class A preferred limited partnership units, series 1, cumulative class A preferred limited partnership units, series 2, cumulative class A preferred limited partnership units, series 3, cumulative class A preferred limited partnership units, series 4, cumulative class A preferred limited partnership units, series 5, cumulative class A preferred limited partnership units, series 6, cumulative class A preferred limited partnership units, series 7, cumulative class A preferred limited partnership units, series 8 in our partnership, cumulative class A preferred limited partnership units, series 9 in our partnership, and cumulative class A preferred limited partnership units, series 10 in our partnership, respectively;

• “Holding LP Class A Preferred Units”, “Holding LP Series 1 Preferred Units”, “Holding LP Series 3 Preferred Units”, “Holding LP Series 5 Preferred Units”, “Holding LP Series 7 Preferred Units” and “Holding LP Series 9 Preferred Units” are to cumulative class A preferred limited partnership units, cumulative class A preferred limited partnership units, series 1, cumulative class A preferred limited partnership units, series 3, cumulative class A preferred limited partnership units, series 5, cumulative class A preferred limited partnership units, series 7 of the Holding LP, and cumulative class A preferred limited partnership units, series 9 of the Holding LP, respectively;

• our “utilities operations” refer to our interests in Australian regulated terminal operation, South American electricity transmission operations in Chile and Brazil and distribution operation in Colombia, European regulated distribution operation in the U.K. and South American natural gas transmission operation, as described in Item 4.B “Business Overview—Our Operations—Utilities—Overview”; and

• “Voting Agreements” are to the voting arrangements described in Item 7.B “Related Party Transactions—Voting Agreements”.

Brookfield Infrastructure 3

On September 14, 2016, we completed a three-for-two split of our units by way of a subdivision of units (the “Unit Split”), whereby unitholders received an additional one-half of a unit for each unit held, resulting in the issuance of approximately 115 million additional units. Our preferred units were not affected by the Unit Split. All historical per unit disclosures have been adjusted to effect for the change in units due to the Unit Split.

FORWARD-LOOKING STATEMENTS

This annual report on Form 20-F contains certain forward-looking statements and information concerning our business and operations. The forward-looking statements and information also relate to, among other things, our objectives, goals, strategies, intentions, plans, beliefs, expectations and estimates and anticipated events or trends. In some cases, you can identify forward-looking statements and information by terms such as “anticipate,” “believe,” “could,” “estimate,” “likely,” “expect,” “intend,” “may,” “continue,” “plan,” “potential,” “objective,” “tend,” “seek,” “target,” “foresee,” “aim to,” “outlook,” “endeavour,” “will,” “would” and “should” or the negative of those terms or other comparable terminology. These forward-looking statements and information are not historical facts but reflect our current expectations regarding future results or events and are based on information currently available to us and on assumptions we believe are reasonable.

Although we believe that our anticipated future results, performance or achievements expressed or implied by these forward-looking statements and information are based on reasonable assumptions and expectations, the reader should not place undue reliance on forward-looking statements and information because they involve assumptions, known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements to differ materially from anticipated future results, performance or achievements expressed or implied by these forward-looking statements and information. These beliefs, assumptions and expectations can change as a result of many possible events or factors, not all of which are known to us or are within our control. If a change occurs, our business, financial condition, liquidity and results of operations and our plans and strategies may vary materially from those expressed in the forward-looking statements and information herein.

Factors that could cause our actual results to differ materially from those contemplated or implied by our forward-looking statements and information include, without limitation:

• our assets are or may become highly leveraged and we intend to incur indebtedness above the asset level;

• our partnership is a holding entity that relies on its subsidiaries to provide the funds necessary to pay our distributions and meet our financial obligations;

• future sales and issuances of our units or preferred units, or the perception of such sales or issuances, could depress the trading price of our units or preferred units;

• pending acquisitions, dispositions and other transactions may not be completed on the timeframe or in the manner contemplated, or at all;

• deployment of capital for our committed backlog and other projects we are pursuing may be delayed, curtailed or redirected altogether;

• acquisitions may subject us to additional risks and the expected benefits of our acquisitions may not materialize;

4 Brookfield Infrastructure

• foreign currency risk and risk management activities;

• increasing political uncertainty, which may impact our ability to expand in certain markets;

• general economic conditions and risks relating to the economy;

• commodity risks;

• alternative technologies could impact the demand for, or use of, the businesses and assets that we own and operate and could impair or eliminate the competitive advantage of our businesses and assets;

• availability and cost of credit;

• government policy and legislation change;

• exposure to uninsurable losses and force majeure events;

• infrastructure operations may require substantial capital expenditures;

• labour disruptions and economically unfavourable collective bargaining agreements;

• exposure to occupational health and safety related accidents;

• exposure to increased economic regulation and adverse regulatory decisions;

• exposure to environmental risks, including increasing environmental legislation and the broader impacts of climate change;

• high levels of government regulation upon many of our operating entities, including with respect to rates set for our regulated businesses;

• First Nations claims to land, adverse claims or governmental claims may adversely affect our infrastructure operations;

• the competitive market for acquisition opportunities and the inability to identify and complete acquisitions as planned;

• our ability to renew existing contracts and win additional contracts with existing or potential customers;

• timing and price for the completion of unfinished projects;

• some of our current operations are held in the form of joint ventures or partnerships or through consortium arrangements;

• our infrastructure business is at risk of becoming involved in disputes and possible litigation;

• some of our businesses operate in jurisdictions with less developed legal systems and could experience difficulties in obtaining effective legal redress and create uncertainties;

• actions taken by national, state, or provincial governments, including nationalization, or the imposition of new taxes, could materially impact the financial performance or value of our assets;

• reliance on technology and exposure to cyber-security attacks;

• customers may default on their obligations;

Brookfield Infrastructure 5

• reliance on tolling and revenue collection systems;

• our ability to finance our operations due to the status of the capital markets;

• changes in our credit ratings;

• our operations may suffer a loss from fraud, bribery, corruption or other illegal acts;

• Brookfield’s influence over our partnership and our partnership’s dependence on the Service Provider;

• the lack of an obligation of Brookfield to source acquisition opportunities for us;

• our dependence on Brookfield and its professionals;

• interests in our General Partner may be transferred to a third party without unitholder or preferred unitholder consent;

• Brookfield may increase its ownership of our partnership;

• our Master Services Agreement and our other arrangements with Brookfield do not impose on Brookfield any fiduciary duties to act in the best interests of unitholders or preferred unitholders;

• conflicts of interest between our partnership, our preferred unitholders and our unitholders, on the one hand, and Brookfield, on the other hand;

• our arrangements with Brookfield may contain terms that are less favourable than those which otherwise might have been obtained from unrelated parties;

• our General Partner may be unable or unwilling to terminate the Master Services Agreement;

• the limited liability of, and our indemnification of, the Service Provider;

• our unitholders and preferred unitholders do not have a right to vote on partnership matters or to take part in the management of our partnership;

• market price of our units and preferred units may be volatile;

• dilution of existing unitholders;

• adverse changes in currency exchange rates;

• investors may find it difficult to enforce service of process and enforcement of judgments against us;

6 Brookfield Infrastructure

• we may not be able to continue paying comparable or growing cash distributions to unitholders in the future;

• our partnership may become regulated as an investment company under the U.S. Investment Company Act of 1940 (“Investment Company Act”), as amended;

• we are exempt from certain requirements of Canadian securities laws and we are not subject to the same disclosure requirements as a U.S. domestic issuer;

• we may be subject to the risks commonly associated with a separation of economic interest from control or the incurrence of debt at multiple levels within an organizational structure;

• effectiveness of our internal controls over financial reporting;

• changes in tax law and practice; and

• other factors described in this annual report on Form 20-F, including, but not limited to, those described under Item 3.D “Risk Factors” and elsewhere in this annual report on Form 20-F.

We caution that the foregoing list of important factors that may affect future results is not exhaustive. When relying on our forward-looking statements and information, investors and others should carefully consider the foregoing factors and other uncertainties and potential events. In light of these risks, uncertainties and assumptions, the events described by our forward-looking statements and information might not occur. These risks could cause our actual results and our plans and strategies to vary from our forward-looking statements and information. We qualify any and all of our forward-looking statements and information by these cautionary factors. Please keep this cautionary note in mind as you read this annual report on Form 20-F. We disclaim any obligation to publicly update or revise any forward-looking statements or information, whether written or oral, as a result of new information, future events or otherwise, except as required by applicable law.

CAUTIONARY STATEMENT REGARDING THE USE OF NON-IFRS ACCOUNTING MEASURES

To measure performance, we focus on net income, an IFRS measure, as well as certain non-IFRS measures, including funds from operations (“FFO”), adjusted funds from operations (“AFFO”), adjusted EBITDA (“Adjusted EBITDA”), adjusted earnings (“Adjusted Earnings”), and invested capital (“Invested Capital”), along with other measures.

FFO

We define FFO as net income excluding the impact of depreciation and amortization, deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. FFO is a measure of operating performance that is not calculated in accordance with, and does not have any standardized meaning prescribed by, International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”). FFO is therefore unlikely to be comparable to similar measures presented by other issuers. FFO has limitations as an analytical tool. Specifically, our definition of FFO may differ from the definition used by other organizations, as well as the definition of funds from operations used by the Real Property Association of Canada (“REALPAC”) and the National Association of Real Estate Investment Trusts, Inc. (“NAREIT”), in part because the NAREIT definition is based on U.S. GAAP, as opposed to IFRS.

Brookfield Infrastructure 7

AFFO

We define AFFO as FFO less capital expenditures required to maintain the current performance of our operations (maintenance capital expenditures). AFFO is a measure of operating performance that is not calculated in accordance with, and does not have any standardized meaning prescribed by, IFRS. AFFO is therefore unlikely to be comparable to similar measures presented by other issuers and has limitations as an analytical tool.

Adjusted EBITDA

In addition to FFO and AFFO, we focus on Adjusted EBITDA, which we define as net income excluding the impact of depreciation and amortization, interest expense, current and deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. Adjusted EBITDA is a measure of operating performance that is not calculated in accordance with, and does not have any standardized meaning prescribed by, IFRS. Adjusted EBITDA is therefore unlikely to be comparable to similar measures presented by other issuers. Adjusted EBITDA has limitations as an analytical tool.

Adjusted Earnings

We also focus on Adjusted Earnings, which we define as net income attributable to the partnership, excluding the impact of depreciation and amortization expense from revaluing property, plant and equipment and the effects of purchase price accounting, mark-to-market on hedging items and disposition gains or losses. Adjusted Earnings is a measure of operating performance that is not calculated in accordance with, and does not have any standardized meaning prescribed by, IFRS. Adjusted Earnings is therefore unlikely to be comparable to similar measures presented by other issuers. Adjusted Earnings has limitations as an analytical tool.

Invested Capital

Invested Capital, which tracks the amount of capital that has been contributed to our partnership, is a measure we utilize to assess returns on capital deployed, relative to targeted returns. Investment decisions are based on, amongst other measures and factors, targeted returns on Invested Capital of 12% to 15% annually over the long-term. We measure return on Invested Capital as Adjusted Funds From Operations (“AFFO”), less estimated returns of capital on operations that are not perpetual in life, divided by the weighted average Invested Capital for the period. We define Invested Capital as partnership capital removing the following items: non-controlling interest in operating subsidiaries, retained earnings or deficit, accumulated other comprehensive income and ownership changes.

For further details regarding our use of FFO, AFFO, Adjusted EBITDA, Adjusted Earnings, and Invested Capital, as well as a reconciliation of net income to these performance measures, please see the “Reconciliation of Non-IFRS Financial Measures” section in Item 5 “Operating and Financial Review and Prospects—Management’s Discussion and Analysis of Financial Condition and Results of Operations”.

8 Brookfield Infrastructure

PART I

ITEM 1.    IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS

Notapplicable.

ITEM 2.    OFFER STATISTICS AND EXPECTED TIMETABLE

Not applicable.

ITEM 3.    KEY INFORMATION

3.A    SELECTED FINANCIAL DATA

The following table presents financial data for Brookfield Infrastructure as of and for the periods indicated:

US$ MILLIONS, EXCEPT PER UNIT AMOUNTS	For the Year Ended December 31,
Statements of Operating Results	2017			2016			2015			2014			2013
Revenue	$	3,535		$	2,115		$	1,855		$	1,924		$	1,826
Direct operating costs	(1,509		)	(1,063		)	(798		)	(846		)	(823		)
General and administrative expenses	(239		)	(166		)	(134		)	(115		)	(110		)
Depreciation and amortization expense	(671		)	(447		)	(375		)	(380		)	(329		)
Interest expense	(428		)	(392		)	(367		)	(362		)	(362		)
Share of earnings (losses) from investments in associates and joint ventures	118			248			69			50			(217		)
Mark-to-market on hedging items	(66		)	74			83			38			19
Gain on sale of associates	—			—			—			—			53
Other income (expenses)	7			174			54			(1		)	(35		)
Income before income tax	747			543			387			308			22
Current income tax expense	(106		)	(33		)	(22		)	(30		)	(3		)
Deferred income tax (expense) recovery	(67		)	18			26			(49		)	1
Net income from continuing operations	574			528			391			229			20
Income from discontinued operations, net of income tax(1)	—			—			—			—			45
Net income	$	574		$	528		$	391		$	229		$	65
Net income (loss) attributable to partnership(2)	125			487			301			184			(58		)
Net (loss) income per limited partnership unit (basic and diluted)(3)	(0.04		)	1.13			0.69			0.45			(0.29		)
Funds from operations (FFO)(4)	1,170			944			808			724			682
Per unit FFO(5)	3.11			2.72			2.39			2.30			2.20
Adjusted funds from operations (AFFO)(6)	941			771			672			593			553
Adjusted EBITDA(7)	1,564			1,322			1,177			1,142			1,110
Adjusted Earnings(8)	569			505			464			350			58
Adjusted Earnings per unit(5)	1.51			1.45			1.38			1.11			0.19
Per unit distributions	1.74			1.55			1.41			1.28			1.15

(1) The timber segment was reported as part of continuing operations until the second quarter of 2013 and has since been classified as discontinued operations for the comparative periods. Our Canadian and U.S. freehold timberlands were disposed of in the second and third quarter of 2013, respectively.

Brookfield Infrastructure 9

(2) Net income (loss) attributable to partnership includes net income (loss) attributable to non-controlling interests—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

(3) During 2017, on average there were 264.6 million limited partnership units outstanding (2016: 244.7 million, 2015: 238.9 million, 2014: 225.4 million, 2013: 221.7 million).

(4) FFO is defined as net income excluding the impact of depreciation and amortization, deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. Along with net income and other measures, FFO is a key measure of our financial performance that we use to assess the operating results and performance of our operations on a segmented basis. It is not calculated in accordance with, and does not have any standardized meanings prescribed by IFRS. For further details regarding our use of FFO as well as a reconciliation of net income to this measure, please see the “Reconciliation of Non-IFRS Financial Measures” section in Item 5 “Operating and Financial Review and Prospects–Management’s Discussion and Analysis of Financial Condition and Results of Operations”.

(5) During 2017, on average there were 376.8 million units outstanding (2016: 347.2 million, 2015: 337.4 million, 2014: 315.1 million, 2013: 310.0 million), being inclusive of our units, the Redeemable Partnership Units, and the Special General Partner Units.

(6) AFFO is defined as FFO less capital expenditures required to maintain the current performance of our operations (maintenance capital expenditures). AFFO is a measure of operating performance that is not calculated in accordance with, and does not have any standardized meaning prescribed by, IFRS. AFFO is therefore unlikely to be comparable to similar measures presented by other issuers. AFFO has limitations as an analytical tool. For further details regarding our use of AFFO, as well as a reconciliation of net income to this measure, please see the “Reconciliation of Non-IFRS Financial Measures” section in Item 5 “Operating and Financial Review and Prospects–Management’s Discussion and Analysis of Financial Condition and Results of Operations”.

(7) Adjusted EBITDA is defined as net income excluding the impact of depreciation and amortization, interest expense, current and deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. Adjusted EBITDA is not calculated in accordance with, and does not have any standardized meaning prescribed by, IFRS. Adjusted EBITDA is therefore unlikely to be comparable to similar measures presented by other issuers. Adjusted EBITDA has limitations as an analytical tool. For further details regarding our use of Adjusted EBITDA, as well as a reconciliation of net income to this measure, please see the “Reconciliation of Non-IFRS Financial Measures” section in Item 5 “Operating and Financial Review and Prospects–Management’s Discussion and Analysis of Financial Condition and Results of Operations”.

(8) Adjusted Earnings is defined as net income attributable to our partnership, excluding the impact of depreciation and amortization expense from revaluing property, plant and equipment and the effects of purchase price accounting, mark-to-market on hedging items and disposition gains or losses. Adjusted Earnings is not calculated in accordance with, and does not have any standardized meaning prescribed by, IFRS. Adjusted Earnings is therefore unlikely to be comparable to similar measures presented by other issuers. Adjusted Earnings has limitations as an analytical tool. For further details regarding our use of Adjusted Earnings, as well as a reconciliation of net income to this measure, please see the “Reconciliation of Non-IFRS Financial Measures” section in Item 5 “Operating and Financial Review and Prospects–Management’s Discussion and Analysis of Financial Condition and Results of Operations”.

US$ MILLIONS	As of December 31,
Statements of Financial Position Key Metrics	2017		2016		2015		2014		2013
Cash and cash equivalents	$	374	$	786	$	199	$	189	$	538
Total assets	29,477		21,275		17,735		16,495		15,682
Corporate borrowings	2,101		1,002		1,380		588		377
Non-recourse borrowings	8,063		7,324		5,852		6,221		5,790
Partnership capital—attributable to limited partners	4,967		4,611		3,838		3,533		3,751
Non-controlling interest—Redeemable Partnership Units held by Brookfield	2,012		1,860		1,518		1,321		1,408
Non-controlling interest—in operating subsidiaries	5,875		2,771		1,608		1,444		1,419
Partnership capital—attributable to general partner	25		27		23		24		27
Partnership capital—attributable to preferred unitholders	595		375		189		—		—
Total Partnership Capital	$	13,474	$	9,644	$	7,176	$	6,322	$	6,605

10 Brookfield Infrastructure

Net income is the most directly comparable IFRS measure to FFO and AFFO. The following table reconciles net income to FFO and AFFO.

	For the Year Ended December 31,
US$ MILLIONS, EXCEPT PER UNIT AMOUNTS(1)	2017			2016			2015			2014			2013
Net income	$	574		$	528		$	391		$	229		$	65
Add back or deduct the following:
Depreciation and amortization	671			447			375			380			329
Share of (earnings) losses from investments in associates and joint ventures	(118		)	(248		)	(69		)	(50		)	217
FFO contribution from investments in associates and joint ventures	584			454			341			289			269
Income tax expense (recovery)	173			15			(4		)	79			2
Mark-to-market on hedging items and other	59			(248		)	(137		)	(37		)	(82		)
Other (expense) income	(61		)	95			36			11			17
Consolidated funds from operations	1,882			1,043			933			901			817
FFO attributable to non-controlling interests	(712		)	(99		)	(125		)	(177		)	(143		)
FFO attributable to discontinued operations	—			—			—			—			8
FFO	1,170			944			808			724			682
Maintenance capital expenditures	(229		)	(173		)	(136		)	(131		)	(129		)
AFFO	$	941		$	771		$	672		$	593		$	553

(1) See Item 5 “Operating and Financial Review and Prospects–Management’s Discussion and Analysis of Financial Condition and Results of Operations—Reconciliation of Non-IFRS Financial Measures” for a detailed reconciliation of our proportionate results to our consolidated statements of operating results.

Please see Item 5 “Operating and Financial Review and Prospects—Management’s Discussion and Analysis of Financial Condition and Results of Operations—Reconciliation of Non-IFRS Financial Measures” for a reconciliation of net income to Adjusted EBITDA and Adjusted Earnings.

3.B    CAPITALIZATION AND INDEBTEDNESS

Not applicable.

3.C    REASONS FOR THE OFFER AND USE OF PROCEEDS

Not applicable.

3.D    RISK FACTORS

You should carefully consider the following factors in addition to the other information set forth in this annual report on Form 20-F. If any of the following risks actually occur, our business, financial condition and results of operations and the value of our units and preferred units would likely suffer.

Brookfield Infrastructure 11

Risks Relating to Our Operations and the Infrastructure Industry

All of our operating entities are subject to general economic and political conditions and risks relating to the markets in which we operate.

Many industries, including the industries in which we operate, are impacted by political and economic conditions, and in particular, adverse events in financial markets, which may have a profound effect on global or local economies. Some key impacts of general financial market turmoil include contraction in credit markets resulting in a widening of credit spreads, devaluations and enhanced volatility in global equity, commodity and foreign exchange markets and a general lack of market liquidity. A slowdown in the financial markets or other key measures of the global economy or the local economies of the regions in which we operate, including, but not limited to, new home construction, employment rates, business conditions, inflation, fuel and energy costs, commodity prices, lack of available credit, the state of the financial markets, interest rates and tax rates may adversely affect our growth and profitability.

The demand for services provided by our operating entities are, in part, dependent upon and correlated to general economic conditions and economic growth of the regions applicable to the relevant asset. Poor economic conditions or lower economic growth in a region or regions may, either directly or indirectly, reduce demand for the services provided by an asset.

For example, a credit/liquidity crisis, such as the global crisis experienced in 2008/2009, could materially impact the cost and availability of financing and overall liquidity; the volatility of commodity output prices and currency exchange markets could materially impact revenues, profits and cash flow; volatile energy, commodity input and consumables prices and currency exchange rates could materially impact production costs; poor local or regional economic conditions could materially impact the level of traffic on our toll roads or volume of commodities transported on our rail network and/or shipped through our ports; our U.K. regulated distribution business earns connection revenues that would be negatively impacted by an economic recession and a reduction of housing starts in the U.K.; and the devaluation and volatility of global stock markets could materially impact the valuation of our units and preferred units. Any one of these factors could have a material adverse effect on our business, financial condition and results of operations. If such increased levels of volatility and market turmoil were to continue, our operations and the trading price of our units and preferred units may be further adversely impacted.

In addition, we may be affected by political uncertainties in the U.S. and Europe, which may have global repercussions, including in markets where we currently operate or intend to expand into in the future.

12 Brookfield Infrastructure

Some of our operations depend on continued strong demand for commodities, such as natural gas or minerals, for their financial performance. Material reduction in demand for these key commodities can potentially result in reduced value for assets, or in extreme cases, a stranded asset.

Some of our operations are critically linked to the transport or production of key commodities. For example, our Australian regulated terminal operation relies on demand for coal exports, our Australian rail operation relies on demand for iron ore for steel production and our South and North American gas transmission operation relies on demand for natural gas and benefits from higher gas prices. While we endeavour to protect against short to medium term commodity demand risk wherever possible by structuring our contracts in a way that minimizes volume risk (e.g. minimum guaranteed volumes and ‘take-or-pay’ arrangements), these contract terms are finite and in some cases contracts contain termination or suspension rights for the benefit of the customer. Accordingly, a long-term and sustained downturn in the demand for or price of a key commodity linked to one of our operations may result in termination, suspension or default under a key contract, or otherwise have a material adverse impact on the financial performance or growth prospects of that particular operation, notwithstanding our efforts to maximize contractual protections.

If a critical upstream or downstream business ceased to operate, this could materially impact our financial performance or the value of one or more of our operating businesses. In extreme cases, our infrastructure could become redundant, resulting in an inability to recover a return on or of capital and potentially triggering covenants and other terms and conditions under associated debt facilities.

Alternative technologies could impact the demand for, or use of, the business and assets that we own and operate and could impair or eliminate our competitive advantage of our businesses and assets

There are alternative technologies that may impact the demand for, or use of, the businesses and assets that we own and operate. While some such alternative technologies are in earlier stages of development, ongoing research and development activities may improve such alternative technologies. For example, changes in the materials used in construction may reduce the demand for thermal coal and iron ore. Additionally, off-grid energy solutions may reduce the need for electricity and gas generation networks and pipelines, and technologies that enable remote working opportunities could reduce traffic on our toll roads. If this were to happen, the competitive advantage of our businesses and assets may be significantly impaired or eliminated and our business, financial condition, results of operations and cash flow could be materially and adversely affected as a result.

Brookfield Infrastructure 13

Acquisitions may subject us to additional risks and the expected benefits of our acquisitions may not materialize.

A key part of Brookfield Infrastructure’s strategy involves seeking acquisition opportunities. Acquisitions may increase the scale, scope and diversity of our operations. We depend on the diligence and skill of Brookfield’s professionals to manage us, including integrating all of the acquired business’ operations with our existing operations. These individuals may have difficulty managing the additional operations and may have other responsibilities within Brookfield’s asset management business. If Brookfield does not effectively manage the additional operations, our existing business, financial condition and results of operations may be adversely affected.

Acquisitions will likely involve some or all of the following risks, which could materially and adversely affect our business, financial condition or results of operations: the difficulty of integrating the acquired operations and personnel into our current operations; the ability to achieve potential synergies; potential disruption of our current operations; diversion of resources, including Brookfield’s time and attention; the difficulty of managing the growth of a larger organization; the risk of entering markets in which we have little experience; the risk of becoming involved in labour, commercial or regulatory disputes or litigation related to the new enterprise; the risk of environmental or other liabilities associated with the acquired business; and the risk of a change of control resulting from an acquisition triggering rights of third parties or government agencies under contracts with, or authorizations held by the operating business being acquired. While it is our practice to conduct extensive due diligence investigations into businesses being acquired, it is possible that due diligence may fail to uncover all material risks in the business being acquired, or to identify a change of control trigger in a material contract or authorization, or that a contractual counterparty or government agency may take a different view on the interpretation of such a provision to that taken by us, thereby resulting in a dispute. The discovery of any material liabilities subsequent to an acquisition, as well as the failure of an acquisition to perform according to expectations, could have a material adverse effect on Brookfield Infrastructure’s business, financial condition and results of operations. In addition, if returns are lower than anticipated from acquisitions, we may not be able to achieve growth in our distributions in line with our stated goals and the market value of our units may decline.

14 Brookfield Infrastructure

We operate in a highly competitive market for acquisition opportunities.

Our acquisition strategy is dependent to a significant extent on the ability of Brookfield to identify acquisition opportunities that are suitable for us. We face competition for acquisitions primarily from investment funds, operating companies acting as strategic buyers, construction companies, commercial and investment banks, and commercial finance companies. Many of these competitors are substantially larger and have considerably greater financial, technical and marketing resources than are available to us. Some of these competitors may also have higher risk tolerances or different risk assessments, which could allow them to consider a wider variety of acquisitions and to offer terms that we are unable or unwilling to match. Due to the capital intensive nature of infrastructure acquisitions, in order to finance acquisitions we will need to compete for equity capital from institutional investors and other equity providers, including Brookfield, and our ability to consummate acquisitions will be dependent on such capital continuing to be available. Increases in interest rates could also make it more difficult to consummate acquisitions because our competitors may have a lower cost of capital which may enable them to bid higher prices for assets. In addition, because of our affiliation with Brookfield, there is a higher risk that when we participate with Brookfield and others in joint ventures, partnerships and consortiums on acquisitions we may become subject to antitrust or competition laws that we would not be subject to if we were acting alone. These factors may create competitive disadvantages for us with respect to acquisition opportunities.

We cannot provide any assurance that the competitive pressures we face will not have a material adverse effect on our business, financial condition and results of operations or that Brookfield will be able to identify and make acquisitions on our behalf that are consistent with our objectives or that generate attractive returns for our unitholders. We may lose acquisition opportunities if we do not match prices, structures and terms offered by competitors, if we are unable to access sources of equity or obtain indebtedness at attractive rates or if we become subject to antitrust or competition laws. Alternatively, we may experience decreased rates of return and increased risks of loss if we match prices, structures and terms offered by competitors.

We may be unable to complete acquisitions, dispositions and other transactions as planned.

Our acquisitions, dispositions and other transactions are subject to a number of closing conditions, including, as applicable, security holder approval, regulatory approval (including competition authorities) and other third party consents and approvals that are beyond our control and may not be satisfied. In particular, many jurisdictions in which we seek to invest (or divest) impose government consent requirements on investments by foreign persons. Consents and approvals may not be obtained, may be obtained subject to conditions which adversely affect anticipated returns, and/or may be delayed and delay or ultimately preclude the completion of acquisitions, dispositions and other transactions. Government policies and attitudes in relation to foreign investment may change, making it more difficult to complete acquisitions, dispositions and other transactions in such jurisdictions. Furthermore, interested stakeholders could take legal steps to prevent transactions from being completed. If all or some of our acquisitions, dispositions and other transactions are unable to be completed on the terms agreed, we may need to modify or delay or, in some cases, terminate these transactions altogether, the market value of our units may significantly decline and we may not be able to achieve the expected benefits of the transactions.

Brookfield Infrastructure 15

Infrastructure assets may be subject to competition risk.

Some assets may be affected by the existence of other competing assets owned and operated by other parties. There can be no assurance that our businesses can renew all their existing contracts or win additional contracts with their existing or potential customers. The ability of our businesses to maintain or improve their revenue is dependent on price, availability and customer service as well as on the availability of access to alternative infrastructure. In the case where the relevant business is unable to retain customers and/or unable to win additional customers to replace those customers it is unable to retain, the revenue from such assets will be reduced.

Investments in infrastructure projects prior to or during a construction or expansion phase are likely to be subject to increased risk.

A key part of our growth strategy involves identifying and taking advantage of organic growth opportunities within our existing businesses. These opportunities typically involve development and construction of new infrastructure or expansion or upgrades to existing infrastructure. Investments in new infrastructure projects during a development or construction phase are likely to be subject to additional risk that the project will not receive all required approvals, will not be completed within budget, within the agreed timeframe and to the agreed specifications and, where applicable, will not be successfully integrated into the existing assets. During the construction phase, major risks include: (i) a delay in the projected completion of the project, which can result in an increase in total project construction costs through higher capitalized interest charges and additional labour, material expenses, and a resultant delay in the commencement of cash flow; (ii) the insolvency of the head contractor, a major subcontractor and/or a key equipment supplier; (iii) construction costs exceeding estimates for various reasons, including inaccurate engineering and planning, labour and building material costs in excess of expectations and unanticipated problems with project start-up; and (iv) defects in design, engineering or construction (including, without limitation, latent defects that do not materialize during an applicable warranty or limitation periods). Such unexpected increases may result in increased debt service costs, operations and maintenance expenses and damage payments for late delivery. This may result in the inability of project owners to meet the higher interest and principal repayments arising from the additional debt required.

In addition, construction projects may be exposed to significant liquidated damages to the extent that commercial operations are delayed beyond prescribed dates or that performance levels do not meet guaranteed levels. For example, a liquidated damages regime applies in respect of some of the expansion of works at our Brazilian toll road business.

We currently have approximately $2.1 billion of committed backlog. Total capital to be commissioned in the next two to three years currently stands at approximately $2.6 billion. We can provide no assurance that we will be able to complete these projects on time or within budget. In addition, we are pursuing a number of other organic growth opportunities that are not yet committed. Accordingly, we can provide no assurance that these projects will materialize on the terms currently contemplated, or at all.

16 Brookfield Infrastructure

We are subject to foreign currency risk and our risk management activities may adversely affect the performance of our operations.

A significant portion of our current operations are in countries where the U.S. dollar is not the functional currency. These operations pay distributions in currencies other than the U.S. dollar, which we must convert to U.S. dollars prior to making distributions, and certain of our operations have revenues denominated in currencies different from our expense structure, thus exposing us to currency risk. Fluctuations in currency exchange rates could reduce the value of cash flows generated by our operating entities or could make it more expensive for our customers to purchase our services and consequently reduce the demand for our services. In addition, a significant depreciation in the value of such foreign currencies may have a material adverse effect on our business, financial condition and results of operations.

When managing our exposure to such market risks, we may use forward contracts, options, swaps, caps, collars and floors or pursue other strategies or use other forms of derivative instruments. The success of any hedging or other derivative transactions that we enter into generally will depend on our ability to structure contracts that appropriately offset our risk position. As a result, while we may enter into such transactions in order to reduce our exposure to market risks, unanticipated market changes may result in poorer overall investment performance than if the derivative transaction had not been executed. Such transactions may also limit the opportunity for gain if the value of a hedged position increases.

General economic and business conditions that impact the debt or equity markets could impact our ability to access credit markets.

General economic and business conditions that impact the debt or equity markets could impact the availability of credit to, and cost of credit for, Brookfield Infrastructure. We have revolving credit facilities and other short-term borrowings. The amount of interest charged on these will fluctuate based on changes in short-term interest rates. Any economic event that affects interest rates or the ability to refinance borrowings could materially adversely impact our financial condition. Movements in interest rates could also affect the discount rates used to value our assets, which in turn could cause their valuations calculated under IFRS to be reduced resulting in a material reduction in our equity value.

In addition, some of our operations either currently have a credit rating or may have a credit rating in the future. A credit rating downgrade may result in an increase in the cost of debt for the relevant businesses and reduced access to debt markets.

Some assets in our portfolio have a requirement for significant capital expenditure. For other assets, cash, cash equivalents and short-term investments combined with cash flow generated from operations are believed to be sufficient for it to make the foreseeable required level of capital investment. However, no assurance can be given that additional capital investments will not be required in these businesses. If we are unable to generate enough cash to finance necessary capital expenditures through operating cash flow, then we may be required to issue additional equity or incur additional indebtedness. The issue of additional equity would be dilutive to existing unitholders at the time. Any additional indebtedness would increase our leverage and debt payment obligations, and may negatively impact its business, financial condition and results of operations.

Our business relies on continued access to capital to fund new investments and capital projects. While we aim to prudently manage our capital requirements and ensure access to capital is always available, it is possible we may overcommit ourselves or misjudge the requirement for capital or the availability of liquidity. Such a misjudgment may require capital to be raised quickly and the inability to do so could result in negative financial consequences or in extreme cases bankruptcy.

Brookfield Infrastructure 17

All of our operating entities are subject to changes in government policy and legislation.

Our financial condition and results of operations could also be affected by changes in economic or other government policies or other political or economic developments in each country or region, as well as regulatory changes or administrative practices over which we have no control such as: the regulatory environment related to our business operations, concession agreements and periodic regulatory resets; interest rates; currency fluctuations; exchange controls and restrictions; inflation; liquidity of domestic financial and capital markets; policies relating to climate change or policies relating to tax; and other political, social, economic, and environmental and occupational health and safety developments that may occur in or affect the countries in which our operating entities are located or conduct business or the countries in which the customers of our operating entities are located or conduct business or both.

In addition, operating costs can be influenced by a wide range of factors, many of which may not be under the control of the owner/operator, including the need to comply with the directives of central and local government authorities. For example, in the case of our utility, transport and energy operations, we cannot predict the impact of future economic conditions, energy conservation measures, alternative fuel requirements, or governmental regulation all of which could reduce the demand for or availability of commodities our transport and energy operations rely upon, most notably coal and natural gas. It is difficult to predict government policies and what form of laws and regulations will be adopted or how they will be construed by the relevant courts, or to the extent which any changes may adversely affect us.

We may be exposed to natural disasters, weather events, uninsurable losses and force majeure events.

Force majeure is the term generally used to refer to an event beyond the control of the party claiming that the event has occurred, including but not limited to acts of God, fires, floods, earthquakes, wars and labour strikes. The assets of our infrastructure businesses are exposed to unplanned interruptions caused by significant catastrophic events such as cyclones, landslides, explosions, terrorist attacks, war, floods, earthquakes, fires, major plant breakdowns, pipeline or electricity line ruptures, accidents, extreme weather events or other disasters. Operational disruption, as well as supply disruption, could adversely affect the cash flow available from these assets. In addition, the cost of repairing or replacing damaged assets could be considerable and could give rise to third-party claims. In some cases, project agreements can be terminated if the force majeure event is so catastrophic as to render it incapable of remedy within a reasonable time period. Repeated or prolonged interruption may result in a permanent loss of customers, substantial litigation, damage, or penalties for regulatory or contractual non-compliance. Moreover, any loss from such events may not be recoverable in whole or in part under relevant insurance policies. Business interruption insurance is not always available, or available on reasonable economic terms to protect the business from these risks.

Given the nature of the assets operated by our operating entities, we may be more exposed to risks in the insurance market that lead to limitations on coverage and/or increases in premium. For example, many components of our Chilean electricity transmission operations and South American toll roads are not insured or not fully insured against losses from earthquakes and our North American gas transmission operation, our Australian distribution operations and our European regulated distribution operations self-insure the majority of their line and pipe assets. Therefore, the occurrence of a major or uninsurable event could have a material adverse effect on financial performance. Even if such insurance were available, the cost may be prohibitive. The ability of the operating entities to obtain the required insurance coverage at a competitive price may have an impact on the returns generated by them and accordingly the returns we receive.

18 Brookfield Infrastructure

For example, our regulated energy distribution businesses generate revenue based on the volume transmitted through their systems. Weather that deviates materially from normal conditions could impact these businesses. A number of our businesses may be adversely impacted by extreme weather. Our Australian rail operation transports grain on its system, for which it is contracted on a volume basis. A drought could have a material negative impact on revenue from grain transportation.

All of our infrastructure operations may require substantial capital expenditures in the future.

Our utilities, transport and energy operations are capital intensive and require substantial ongoing expenditures for, among other things, additions and improvements, and maintenance and repair of plant and equipment related to our operations. Any failure to make necessary capital expenditures to maintain our operations in the future could impair the ability of our operations to serve existing customers or accommodate increased volumes. In addition, we may not be able to recover such investments based upon the rates our operations are able to charge.

In some of the jurisdictions in which we have utilities, transport or energy operations, certain maintenance capital expenditures may not be covered by the regulatory framework. If our operations in these jurisdictions require significant capital expenditures to maintain our asset base, we may not be able to recover such costs through the regulatory framework. In addition, we may be exposed to disallowance risk in other jurisdictions to the extent that capital expenditures and other costs are not fully recovered through the regulatory framework.

Performance of our operating entities may be harmed by future labour disruptions and economically unfavourable collective bargaining agreements.

Several of our current operations or other business operations have workforces that are unionized or that in the future may become unionized and, as a result, are required to negotiate the wages, benefits and other terms with many of their employees collectively. If an operating entity were unable to negotiate acceptable contracts with any of its unions as existing agreements expire, it could experience a significant disruption of its operations, higher ongoing labour costs and restrictions on its ability to maximize the efficiency of its operations, which could have a material adverse effect on its business, financial condition and results of operations.

In addition, in some jurisdictions where we have operations, labour forces have a legal right to strike which may have an impact on our operations, either directly or indirectly, for example if a critical upstream or downstream counterparty was itself subject to a labour disruption which impacted our ability to operate.

Brookfield Infrastructure 19

Our operations are exposed to occupational health and safety and accident risks.

Infrastructure projects and operational assets are highly exposed to the risk of accidents that may give rise to personal injury, loss of life, disruption to service and economic loss. Some of the tasks undertaken by employees and contractors are inherently dangerous and have the potential to result in serious injury or death.

Our operating entities are subject to laws and regulations governing health and safety matters, protecting both members of the public and their employees and contractors. Occupational health and safety legislation and regulations differ in each jurisdiction. Any breach of these obligations, or serious accidents involving our employees, contractors or members of the public could expose them to adverse regulatory consequences, including the forfeit or suspension of operating licenses, potential litigation, claims for material financial compensation, reputational damage, fines or other legislative sanction, all of which have the potential to impact the results of our operating entities and our ability to make distributions. Furthermore, where we do not control a business, we have a limited ability to influence health and safety practices and outcomes.

Many of our operations are subject to economic regulation and may be exposed to adverse regulatory decisions.

Due to the essential nature of some of the services provided by our assets and the fact that some of these services are provided on a monopoly or near monopoly basis, many of our operations are subject to forms of economic regulation. This regulation can involve different forms of price control and can involve ongoing commitments to economic regulators and other governmental agencies. The terms upon which access to our facilities is provided, including price, can be determined or amended by a regulator periodically. Future terms to apply, including access charges that our operations are entitled to charge, cannot be determined with any certainty, as we do not have discretion as to the amount that can be charged. New legislation, regulatory determinations or changes in regulatory approaches may result in regulation of previously unregulated businesses or material changes to the revenue or profitability of our operations. In addition, a decision by a government or regulator to regulate non-regulated assets may significantly and negatively change the economics of these businesses and the value or financial performance of Brookfield Infrastructure. For example, in 2010 regulatory action taken by the Federal Energy Regulatory Commission (“FERC”) saw a significant reduction in annual cashflow expectations of our North American gas transmission operations. Similarly, in 2016 a periodic regulatory reset at our Australian coal terminal resulted in a decline in annual cashflows at that business.

20 Brookfield Infrastructure

Our operating entities are exposed to the risk of environmental damage.

Many of Brookfield Infrastructure’s assets are involved in using, handling or transporting substances that are toxic, combustible or otherwise hazardous to the environment. Furthermore, some of our assets have operations in or in close proximity to environmentally sensitive areas or densely populated communities. There is a risk of a leak, spillage or other environmental emission at one of these assets, which could cause regulatory infractions, damage to the environment, injury or loss of life. Such an incident if it occurred could result in fines or penalties imposed by regulatory authorities, revocation of licenses or permits required to operate the business or the imposition of more stringent conditions in those licenses or permits, or legal claims for compensation (including punitive damages) by affected stakeholders. In addition, some of our assets may be subject to regulations or rulings made by environmental agencies that conflict with existing obligations we have under concession or other permitting agreements. Resolution of such conflicts may lead to uncertainty and increased risk of delays or cost over-runs on projects. All of these have the potential to significantly impact the value or financial performance of Brookfield Infrastructure.

Our operating entities are exposed to the risk of increasing environmental legislation and the broader impacts of climate change.

With an increasing global focus and public sensitivity to environmental sustainability and environmental regulation becoming more stringent, Brookfield Infrastructure’s assets could be subject to increasing environmental responsibility and liability. For example, many jurisdictions in which Brookfield Infrastructure operates are considering implementing, or have implemented, schemes relating to the regulation of carbon emissions. As a result, there is a risk that the consumer demand for some of the energy sources supplied by Brookfield Infrastructure will be reduced. For example, the United Kingdom’s phasing out of analog meters and use of gas as a source of heating for residential customers could lead to a reduction in revenue and growth at our U.K. utility business. The nature and extent of future regulation in the various jurisdictions in which Brookfield Infrastructure’s operations are situated is uncertain, but is expected to become more complex and stringent.

It is difficult to assess the impact of any such changes on Brookfield Infrastructure. These schemes may result in increased costs to our operations that may not be able to be passed onto our customers and may have an adverse impact on prospects for growth of some businesses. To the extent such regimes (such as carbon emissions schemes or other carbon emissions regulations) become applicable to the operations of Brookfield Infrastructure (and the costs of such regulations are not able to be fully passed on to consumers), its financial performance may be impacted due to costs applied to carbon emissions and increased compliance costs.

Our operating entities are also subject to laws and regulations relating to the protection of the environment and pollution. Standards are set by these laws and regulations regarding certain aspects of environmental quality and reporting, provide for penalties and other liabilities for the violation of such standards, and establish, in certain circumstances, obligations to remediate and rehabilitate current and former facilities and locations where our operations are, or were, conducted. These laws and regulations may have a detrimental impact on the financial performance of our infrastructure operations and projects through increased compliance costs or otherwise. Any breach of these obligations, or even incidents relating to the environment that do not amount to a breach, could adversely affect the results of our operating entities and their reputations and expose them to claims for financial compensation or adverse regulatory consequences.

Our operations may also be exposed directly or indirectly to the broader impacts of climate change, including extreme weather events, export constraints on commodities, increased resource prices and restrictions on energy and water usage.

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Our operating entities may be exposed to higher levels of regulation than in other sectors and breaches of such regulations could expose our operating entities to claims for financial compensation and adverse regulatory consequences.

In many instances, our ownership and operation of infrastructure assets involves an ongoing commitment to a governmental agency. The nature of these commitments exposes the owners of infrastructure assets to a higher level of regulatory control than typically imposed on other businesses. For example, several of our utilities, transport and energy operations are subject to government safety and reliability regulations that are specific to their industries. The risk that a governmental agency will repeal, amend, enact or promulgate a new law or regulation or that a governmental authority will issue a new interpretation of the law or regulations, could affect our operating entities substantially.

Sometimes commitments to governmental agencies, for example, under toll road concession arrangements, involve the posting of financial security for performance of obligations. If obligations are breached these financial securities may be called upon by the relevant agency.

There is also the risk that our operating entities do not have, might not obtain, or may lose permits necessary for their operations. Permits or special rulings may be required on taxation, financial and regulatory related issues. Even though most permits and licenses are obtained before the commencement of operations, many of these licenses and permits have to be renewed or maintained over the life of the business. The conditions and costs of these permits, licenses and consents may be changed on any renewal, or, in some cases, may not be renewed due to unforeseen circumstances or a subsequent change in regulations. In any event, the renewal or non-renewal could have a material adverse effect on our business, financial condition and results of operations.

The risk that a government will repeal, amend, enact or promulgate a new law or regulation or that a regulator or other government agency will issue a new interpretation of the law or regulations, may affect our operations or a project substantially. This may also be due to court decisions and actions of government agencies that affect these operations or a project’s performance or the demand for its services. For example, a government policy decision may result in adverse financial outcomes for us through directions to spend money to improve security, safety, reliability or quality of service.

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The lands used for our infrastructure assets may be subject to adverse claims or governmental or First Nations rights.

Our operations require large areas of land on which to be constructed and operated. The rights to use the land can be obtained through freehold title, leases and other rights of use. Although we believe that we have valid rights to all material easements, licenses and rights of way for our infrastructure operations, not all of our easements, licenses and rights of way are registered against the lands to which they relate and may not bind subsequent owners. Additionally, different jurisdictions have adopted different systems of land title and in some jurisdictions it may not be possible to ascertain definitively who has the legal right to enter into land tenure arrangements with the asset owner. In some jurisdictions where we have operations, it is possible to claim indigenous or aboriginal rights to land and the existence or declaration of native title may affect the existing or future activities of our utilities, transport or energy operations and impact on their business, financial condition and results of operations.

In addition, a government, court, regulator, or indigenous or aboriginal group may make a decision or take action that affects an asset or project’s performance or the demand for its services. In particular, a regulator may restrict our access to an asset, or may require us to provide third parties with access, or may affect the pricing structure so as to lower our revenues and earnings. In Australia, native title legislation provides for a series of procedures that may need to be complied with if native title is declared on relevant land. In Canada, for example, courts have recognized that First Nations peoples may possess rights at law in respect of land used or occupied by their ancestors where treaties have not been concluded to deal with these rights. In either case, the claims of a First Nations group may affect the existing or future activities of our operations, impact on our business, financial condition and results of operations, or require that compensation be paid.

Some of our transactions and current operations are structured as joint ventures, partnerships and consortium arrangements, and we intend to continue to operate in this manner in the future, which may reduce Brookfield’s and our influence over our operations and may subject us to additional obligations.

Some of our transactions and current operations are structured as joint ventures, partnerships and consortium arrangements. An integral part of our strategy is to participate with institutional investors in Brookfield-sponsored or co-sponsored consortiums for single asset acquisitions and as a partner in or alongside Brookfield-sponsored or co-sponsored partnerships that target acquisitions that suit our profile. These arrangements are driven by the magnitude of capital required to complete acquisitions of infrastructure assets, strategic partnering arrangements to access operating expertise, and other industry-wide trends that we believe will continue. Such arrangements involve risks not present where a third party is not involved, including the possibility that partners or co-venturers might become bankrupt or otherwise fail to fund their share of required capital contributions. Additionally, partners or co-venturers might at any time have economic or other business interests or goals different from us and Brookfield.

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While our strategy is to structure these arrangements to afford our Partnership certain protective rights in relation to operating and financing activities, joint ventures, partnerships and consortium investments may provide for a reduced level of influence over an acquired company because governance rights are shared with others. For example, these arrangements are structured to provide our Partnership with veto rights over key operational activities and to require these arrangements to distribute available funds generated by the arrangement, subject to maintaining prudent reserves. Accordingly, decisions relating to the underlying operations and financing activities, including decisions relating to the management and operation, the investment of capital within the arrangement, and the timing and nature of any exit, will be made by a majority or supermajority vote of the investors or by separate agreements that are reached with respect to individual decisions. For example, when we participate with institutional investors in Brookfield-sponsored or co-sponsored consortiums for asset acquisitions and as a partner in or alongside Brookfield-sponsored or co-sponsored partnerships, there is often a finite term to the investment or a date after which partners are granted liquidity rights, which could lead to the investment being sold prior to the date we would otherwise choose. In addition, such operations may be subject to the risk that the company may make business, financial or management decisions with which we do not agree or the management of the company may take risks or otherwise act in a manner that does not serve our interests. Because we may have a reduced level of influence over such operations, we may not be able to realize some or all of the benefits that we believe will be created from our and Brookfield’s involvement. If any of the foregoing were to occur, our business, financial condition and results of operations could suffer as a result.

In addition, because some of our transactions and current operations are structured as joint ventures, partnerships or consortium arrangements, the sale or transfer of interests in some of our operations are or may be subject to rights of first refusal or first offer, tag along rights or drag along rights and some agreements provide for buy-sell or similar arrangements. For example, some of our investments are subject to a shareholder agreement which allows for the sale of the assets without our consent. Such rights may be triggered at a time when we may not want them to be exercised and such rights may inhibit our ability to sell our interest in an entity within our desired time frame or on any other desired basis.

Our infrastructure business is at risk of becoming involved in disputes and possible litigation.

Our infrastructure business is at risk of becoming involved in disputes and possible litigation, the extent of which cannot be ascertained. Any material or costly dispute or litigation could adversely affect the value of the assets or future financial performance of Brookfield Infrastructure. In addition, as a result of the actions of the Holding Entities or the operating entities, Brookfield Infrastructure could be subject to various legal proceedings concerning disputes of a commercial nature, or to claims in the event of bodily injury or material damage. The final outcome of any proceeding could have a negative impact on the business, financial condition or results of operations of Brookfield Infrastructure during a given quarter or financial year.

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Some of our businesses operate in jurisdictions with less developed legal systems and could experience potential difficulties in obtaining effective legal redress and create uncertainties.

Some of our businesses operate in jurisdictions with less developed legal systems than those in more established economies. In these jurisdictions, Brookfield Infrastructure could be faced with potential difficulties in obtaining effective legal redress; a higher degree of discretion on the part of governmental authorities; a lack of judicial or administrative guidance on interpreting applicable rules and regulations; inconsistencies or conflicts between and within various laws, regulations, decrees, orders and resolutions; and relative inexperience of the judiciary and courts in such matters.

In addition, in certain jurisdictions, Brookfield Infrastructure may find that the commitment of local business people, government officials and agencies and the judicial system to abide by legal requirements and negotiated agreements could be uncertain, creating particular concerns with respect to permits, approvals and licenses required or desirable for, or agreements entered into in connection with, the Brookfield Infrastructure business in any such jurisdiction. These may be susceptible to revision or cancellation and legal redress may be uncertain or delayed. There can be no assurance that joint ventures, licenses, permits or approvals (or applications for licenses, permits or approvals) or other legal arrangements will not be adversely affected by the actions of government authorities or others and the effectiveness of and enforcement of such arrangements in these jurisdictions cannot be assured.

Action taken by national, state or provincial governments, including nationalization or the imposition of new taxes, could materially impact the financial performance or value of our assets.

Our assets are located in many different jurisdictions, each with its own government and legal system. Different levels of political risk exist in each jurisdiction and it is possible that action taken by a national, state or provincial government, including the nationalization of a business or the imposition of new taxes, could materially impact our financial performance or in extreme cases deprive Brookfield Infrastructure of one or more of its businesses without adequate compensation.

Our business relies on the use of technology, and as a result, we may be exposed to cyber-security attacks.

Our business places significant reliance on information and other technology. This technology includes our computer systems used for information, processing, administrative and commercial operations and the operating plant and equipment used by our assets, including that on our toll roads, in our electricity transmission systems, coal terminal operations, ports, rail networks, and by our electricity and gas distribution companies. In addition, our business also relies upon telecommunication services to interface with its widely distributed business network and customers. The information and embedded systems of key business partners and regulatory agencies are also important to our operations. Our business relies on this technology functioning as intended.

Our computer systems may be subject to cybersecurity risks or other breaches of information technology security, noting the increasing frequency and severity of these kinds of incidents. Further, the operating equipment used by our assets may not continue to perform as it has in the past, and there is a risk of equipment failure due to wear and tear, latent defect, design or operator errors or early obsolescence, among other things.

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A breach of our cyber/data security measures, the failure of any such computerized system or of the operating equipment used by our assets for a significant time period could have a material adverse effect on our business prospects, financial condition, results of operations and cash flow and it may not be possible to recover losses suffered from such incidents under our insurance policies. Although we are continuing to develop defenses to such attacks, we can provide no assurance they will be successful in preventing or ameliorating damage from such an attack on us and, as the manner in which cyber-attacks are undertaken has become more sophisticated, there is a risk that the occurrence of cyber-attack may remain undetected for an extended period.

Furthermore, our communications infrastructure operations rely for their continued viability on the ongoing demand for tower infrastructure, which is uncertain and could be subject to bypass risk or obsolescence as a result of new or developing technologies.

Many of our operations depend on relevant contractual arrangements.

Many of our operations rely on revenue from customers under contracts. There is a risk that customers will default under these contracts. We cannot provide assurance that one or more customers will not default on their obligations to us or that such a default or defaults will not have a material adverse effect on our operations, financial position, future results of operations, or future cash flows. Furthermore, the bankruptcy of one or more of our customers, or some other similar proceeding or liquidity constraint, might make it unlikely that we would be able to collect all or a significant portion of amounts owed by the distressed entity or entities. In addition, such events might force such customers to reduce or curtail their future use of our products and services, which could have a material adverse effect on our business, financial condition and results of operations. For example, we have a single customer which represented a majority of contractual and regulated revenues of our Brazilian regulated gas transmission operation during the current year. As this accounts for a majority of its cash flow, our Brazilian regulated gas transmission operation could be materially adversely affected by any material change in the financial condition of that customer. Similarly, our rail business is party to several commercial track access agreements to provide access to our rail network for the haulage of iron ore. The largest of these contracts currently accounts for a significant portion of forecast Adjusted EBITDA within the rail business and an event of default under this contract could have a materially adverse effect on that business.

We endeavour to minimize risk wherever possible by structuring our contracts in a way that minimizes volume risk (e.g. minimum guaranteed volumes and ‘take-or-pay’ arrangements), however it is possible that the take-or-pay arrangements may not be fully effective. In addition, the contract terms are finite and in some cases the contracts contain termination or suspension rights for the benefit of the customer.

Certain of our assets with revenues contracted under contracts will be subject to re-contracting risk in the future. We cannot provide assurance that we will be able to re-negotiate these contracts once their terms expire, or that even if we are able to do so, that we will be able to obtain the same prices or terms we currently receive. If we are unable to renegotiate these contracts, or unable to receive prices at least equal to the current prices we receive, our business, financial condition, results of operation and prospects could be adversely affected.

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We rely on tolling and revenue collection systems.

Revenues at some of our assets depend on reliable and efficient tolling, metering or other revenue collection systems. There is a risk that, if one or more of our businesses are not able to operate and maintain these tolling, metering or other revenue collection systems in the manner expected, or if the cost of operation and maintenance is greater than expected, our assets, business, financial condition, and risks of operations could be materially adversely affected. Users of our facilities who do not pay tolls or other charges may be subject to either direct legal action from the relevant business, or in some cases may be referred to the state for enforcement action. We bear the ultimate risk if enforcement actions against defaulting customers are not successful or if enforcement actions are more costly or take more time than expected.

Our ability to finance our operations is subject to various risks relating to the state of the capital markets.

Our financing strategy involves both the issuance of partnership level equity and the issuance of corporate debt. For example, in September 2017, we issued approximately 16.6 million units at $42.10 per unit in the United States and Canada, together with 7,423,000 additional Redeemable Partnership Units to Brookfield in a concurrent private placement, and in January 2018, we raised C$200 million of gross proceeds through the issuance of Series 9 Preferred Units in Canada.

We have corporate debt and limited recourse project level debt, the majority of which is non-recourse that will need to be replaced from time to time. Our financings may contain conditions that limit our ability to repay indebtedness prior to maturity without incurring penalties, which may limit our capital markets flexibility. As such, a number of risks arise with respect to refinancing our existing indebtedness, including, among other factors, dependence on continued operating performance of our assets, future electricity market prices, future capital markets conditions, the level of future interest rates and investors’ assessment of our credit risk at such time. In addition, certain of our financings are, and future financings may be exposed to floating interest rate risks, and if interest rates increase, an increased proportion of our cash flow may be required to service indebtedness.

Future acquisitions, development and construction of new facilities and other capital expenditures, including those arising from our committed backlog of organic growth projects, will be financed out of cash generated from our operations, borrowings and possible future sales of equity. Further, we may look to finance transactions through our capital recycling program, resulting in the disposition of certain of our assets. As a large portion of our capital is invested in physical assets and securities, relying on capital recycling as a means of financing could be difficult, as such assets can be hard to sell, especially if market conditions are poor. A lack of liquidity could limit our ability to vary our portfolio or assets promptly in response to changing economic or investment conditions. Additionally, if financial or operating difficulties of other owners result in distress sales, such sales could depress asset values in the markets in which we operate.

In addition to the above, our ability to obtain financing to finance our growth is dependent on, among other factors, the overall state of the capital markets, continued operating performance of our assets, future electricity market prices, the level of future interest rates and investors’ assessment of our credit risk at such time, and investor appetite for investments in infrastructure assets in general and in our securities in particular. To the extent that external sources of capital become limited or unavailable or available on onerous terms, our ability to fund acquisitions and make necessary capital investments to construct new or maintain existing facilities will be impaired, and as a result, our business, financial condition, results of operations and prospects may be materially adversely affected.

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Changes in our credit ratings may have an adverse effect on our financial position and ability to raise capital.

We cannot assure you that any credit rating assigned to us or any of our subsidiaries’ debt securities will remain in effect for any given period of time or that any rating will not be lowered or withdrawn entirely by the relevant rating agency. A lowering or withdrawal of such ratings may have an adverse effect on our financial position and ability to raise capital.

We may suffer a significant loss resulting from fraud, bribery, corruption other illegal acts, inadequate or failed internal processes or systems, or from external events.

We may suffer a significant loss resulting from fraud, bribery, corruption, other illegal acts by our employees or those of Brookfield (including those in parts of the Brookfield group that do not engage or interact with Brookfield Infrastructure), inadequate or failed internal processes or systems, or from external events, such as security threats affecting our ability to operate. Both Brookfield and our partnership operate in different markets and rely on our employees to follow our policies and processes as well as applicable laws in their activities. Risk of illegal acts or failed systems is managed through our infrastructure, controls, systems and people, complemented by a focus on enterprise-wide management of specific operational risks such as fraud, bribery and corruption, as well as personnel and systems risks. Specific programs, policies, standards and methodologies have been developed to support the management of these risks, however these cannot guarantee that such conduct does not occur and if it does, it can result in direct or indirect financial loss, reputational impact or regulatory consequences.

Risks Relating to Our Relationship with Brookfield

Brookfield exercises substantial influence over our partnership and we are highly dependent on the Service Provider.

Brookfield is the sole shareholder of our General Partner. As a result of its ownership of our General Partner, Brookfield is able to control the appointment and removal of our General Partner’s directors and, accordingly, exercise substantial influence over our partnership and over the Holding LP, for which our partnership is the managing general partner. Our partnership and the Holding LP do not have any employees and depend on the management and administration services provided by the Service Provider. Brookfield personnel and support staff that provide services to us are not required to have as their primary responsibility the management and administration of our partnership or the Holding LP or to act exclusively for either of us. Any failure to effectively manage our current operations or to implement our strategy could have a material adverse effect on our business, financial condition and results of operations. For further information on our governance and management arrangements see Item 6.A “Directors and Senior Management”, Item 6.C “Board Practices” and Item 7.B “Related Party Transactions—Conflicts of Interest and Fiduciary Duties”.

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Brookfield has no obligation to source acquisition opportunities for us and we may not have access to all infrastructure acquisitions that Brookfield identifies.

Our ability to grow depends on Brookfield’s ability to identify and present us with acquisition opportunities. Brookfield established our partnership to own and operate certain infrastructure assets on a global basis. However, Brookfield has no obligation to source acquisition opportunities for us. In addition, Brookfield has not agreed to commit to us any minimum level of dedicated resources for the pursuit of infrastructure-related acquisitions. There are a number of factors which could materially and adversely impact the extent to which suitable acquisition opportunities are made available from Brookfield, for example:

• there is no accepted industry standard for what constitutes an infrastructure asset. For example, Brookfield may consider certain assets that have both real-estate related characteristics and infrastructure related characteristics to be real estate and not infrastructure;

• it is an integral part of Brookfield’s (and our) strategy to pursue the acquisition of infrastructure assets through consortium arrangements with institutional investors, strategic partners or financial sponsors and to form partnerships to pursue such acquisitions on a specialized or global basis. Although Brookfield has agreed with us that it will not enter any such arrangements that are suitable for us without giving us an opportunity to participate in them, there is no minimum level of participation to which we will be entitled;

• the same professionals within Brookfield’s organization that are involved in acquisitions that are suitable for us are responsible for the consortiums and partnerships referred to above, as well as having other responsibilities within Brookfield’s broader asset management business. Limits on the availability of such individuals will likewise result in a limitation on the availability of acquisition opportunities for us;

• Brookfield will only recommend acquisition opportunities that it believes are suitable for us. Our focus is on assets where we believe that our operations-oriented approach can be deployed to create value. Accordingly, opportunities where Brookfield cannot play an active role in influencing the underlying operating company or managing the underlying assets may not be suitable for us, even though they may be attractive from a purely financial perspective. Legal, regulatory, tax and other commercial considerations will likewise be an important consideration in determining whether an opportunity is suitable and will limit our ability to participate in these more passive investments and may limit our ability to have more than 50% of our assets concentrated in a single jurisdiction; and

• in addition to structural limitations, the question of whether a particular acquisition is suitable is highly subjective and is dependent on a number of factors including our liquidity position at the time, the risk profile of the opportunity, its fit with the balance of our then current operations and other factors. If Brookfield determines that an opportunity is not suitable for us, it may still pursue such opportunity on its own behalf, or on behalf of a Brookfield-sponsored partnership or consortium.

In making these determinations, Brookfield may be influenced by factors that result in a misalignment or conflict of interest. See Item 7.B “Related Party Transactions—Conflicts of Interest and Fiduciary Duties.”

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The departure of some or all of Brookfield’s professionals could prevent us from achieving our objectives.

We depend on the diligence, skill and business contacts of Brookfield’s professionals and the information and opportunities they generate during the normal course of their activities. Our future success will depend on the continued service of these individuals, who are not obligated to remain employed with Brookfield. Brookfield has experienced departures of key professionals in the past and may do so in the future, and we cannot predict the impact that any such departures will have on our ability to achieve our objectives. The departure of a significant number of Brookfield’s professionals for any reason, or the failure to appoint qualified or effective successors in the event of such departures, could have a material adverse effect on our ability to achieve our objectives. Our Limited Partnership Agreement and our Master Services Agreement do not require Brookfield to maintain the employment of any of its professionals or to cause any particular professionals to provide services to us or on our behalf.

The control of our General Partner may be transferred to a third party without unitholder or preferred unitholder consent.

Our General Partner may transfer its general partnership interest to a third party in a merger or consolidation or in a transfer of all or substantially all of its assets without the consent of our unitholders or preferred unitholders. Furthermore, at any time, the shareholder of our General Partner may sell or transfer all or part of its shares in our General Partner without the approval of our unitholders or preferred unitholders. If a new owner were to acquire ownership of our General Partner and to appoint new directors or officers of its own choosing, it would be able to exercise substantial influence over our partnership’s policies and procedures and exercise substantial influence over our management and the types of acquisitions that we make. Such changes could result in our partnership’s capital being used to make acquisitions in which Brookfield has no involvement or in making acquisitions that are substantially different from our targeted acquisitions. Additionally, our partnership cannot predict with any certainty the effect that any transfer in the ownership of our General Partner would have on the trading price of our units and preferred units or our partnership’s ability to raise capital or make investments in the future, because such matters would depend to a large extent on the identity of the new owner and the new owner’s intentions with regard to our partnership. As a result, the future of our partnership would be uncertain and our partnership’s business, financial condition and results of operations may suffer.

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Brookfield’s ownership position of our partnership and the Holding LP entitles it to a significant percentage of our distributions, and Brookfield may increase its ownership relative to other unitholders.

Brookfield beneficially owns, directly or indirectly, approximately 29.6% of our units on a fully-exchanged basis, substantially all of which consists of 115,824,992 Redeemable Partnership Units of the Holding LP that are redeemable for cash or exchangeable for our units in accordance with the Redemption-Exchange Mechanism. See Item 10.B “Memorandum and Articles of Association—Description of the Holding LP’s Limited Partnership Agreement—Redemption-Exchange Mechanism.” In addition, Brookfield owns approximately 0.4% of the Holding LP through Special General Partner Units, which entitle Brookfield to receive distributions in proportion to its special general partnership interest, plus additional incentive distributions, as described in Item 7.B “Related Party Transactions—Special General Partner Distributions” and “—Incentive Distributions.” Accordingly, Brookfield’s ownership position of Redeemable Partnership Units and Special General Partner Units allows Brookfield to receive a substantial percentage of our distributions. See Item 10.B “Memorandum and Articles of Association.”

Brookfield may increase its ownership position in our partnership and the Holding LP. Under the distribution reinvestment plan of the Holding LP, Brookfield can reinvest distributions on its Redeemable Partnership Units for additional Redeemable Partnership Units. In addition, Brookfield may also elect to reinvest incentive distributions from its Special General Partner Units in exchange for additional Redeemable Partnership Units. Brookfield has advised us that it may from time to time reinvest these distributions for such additional Redeemable Partnership Units, which would increase its beneficial ownership percentage of our units and increase its share of distributions relative to public unitholders. To date, Brookfield has not elected to reinvest any of the distributions from its Redeemable Partnership Units or its Special General Partner Units for additional Redeemable Partnership Units, but it may elect to do so in the future.

Brookfield may also purchase additional units of our partnership in the open market or pursuant to private placement. Brookfield historically has purchased additional Redeemable Partnership Units in private placements concurrent with public offerings of our units. Most recently, it purchased 7,423,000 Redeemable Partnership Units in connection with our September 2017 offering. See Item 5.B “Liquidity and Capital Resources—Partnership Capital.”

Any of these events may result in Brookfield increasing its ownership of our units relative to other unitholders, which could reduce the amount of cash available for distribution to public unitholders.

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Our Master Services Agreement and our other arrangements with Brookfield do not impose on Brookfield any fiduciary duties to act in the best interests of our unitholders or preferred unitholders.

Our Master Services Agreement and our other arrangements with Brookfield do not impose on Brookfield any duty (statutory or otherwise) to act in the best interests of the Service Recipients, nor do they impose other duties that are fiduciary in nature. As a result, our General Partner, a wholly-owned subsidiary of Brookfield Asset Management, in its capacity as our General Partner, has sole authority to enforce the terms of such agreements and to consent to any waiver, modification or amendment of their provisions, subject to approval by a majority of our independent directors in accordance with our conflicts protocol. See Item 7.B “Related Party Transactions—Conflicts of Interest and Fiduciary Duties”.

In addition, the Bermuda Limited Partnership Act of 1883 (“Bermuda Limited Partnership Act”), under which our partnership and the Holding LP were established, does not impose statutory fiduciary duties on a general partner of a limited partnership in the same manner that certain corporate statutes, such as the Canada Business Corporations Act (“Canada Business Corporations Act”), impose fiduciary duties on directors of a corporation. In general, under applicable Bermudian legislation, a general partner has a duty to: (i) act at all times in good faith; and (ii) subject to any express provisions of the partnership agreement to the contrary, act in the interests of the limited partnership. Applicable Bermuda legislation also provides that a general partner has certain limited duties to its limited partners, such as the duty to render accounts, account for private profits and not compete with the partnership in business. In addition, Bermudian common law recognizes that a general partner owes a duty of utmost good faith to its limited partners. These duties are, in most respects, similar to duties imposed on a general partner of a limited partnership under U.S. and Canadian law. However, to the extent that our General Partner owes any such fiduciary duties to our partnership, our preferred unitholders and unitholders, these duties have been modified pursuant to our Limited Partnership Agreement as a matter of contract law, with the exception of the duty of our General Partner to act in good faith, which cannot be modified. We have been advised by Bermudian counsel that such modifications are not prohibited under Bermudian law, subject to typical qualifications as to enforceability of contractual provisions, such as the application of general equitable principles. This is similar to Delaware law which expressly permits modifications to the fiduciary duties owed to partners, other than an implied contractual covenant of good faith and fair dealing.

Our Limited Partnership Agreement contains various provisions that modify the fiduciary duties that might otherwise be owed to our partnership, our preferred unitholders and unitholders, including when conflicts of interest arise. Specifically, our Limited Partnership Agreement states that no breach of our Limited Partnership Agreement or a breach of any duty, including fiduciary duties, may be found for any matter that has been approved by a majority of the independent directors of our General Partner. In addition, when resolving conflicts of interest, our Limited Partnership Agreement does not impose any limitations on the discretion of the independent directors or the factors which they may consider in resolving any such conflicts. The independent directors of our General Partner can, subject to acting in

accordance with their own fiduciary duties in their capacity as a director of the General Partner, therefore take into account the interests of third parties, including Brookfield, when resolving conflicts of interest. Additionally, any fiduciary duty that is imposed under any applicable law or agreement is modified, waived or limited to the extent required to permit our General Partner to undertake any affirmative conduct or to make any decisions, so long as such action is reasonably believed to be in, or not inconsistent with, the best interests of our partnership.

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In addition, our Limited Partnership Agreement provides that our General Partner and its affiliates do not have any obligation under our Limited Partnership Agreement, or as a result of any duties stated or implied by law or equity, including fiduciary duties, to present business or investment opportunities to our partnership, the Holding LP, any Holding Entity or any other holding entity established by us. They also allow affiliates of our General Partner to engage in activities that may compete with us or our activities. Additionally, any failure by our General Partner to consent to any merger, consolidation or combination will not result in a breach of our Limited Partnership Agreement or any other provision of law. Our Limited Partnership Agreement prohibits our limited partners from advancing claims that otherwise might raise issues as to compliance with fiduciary duties or applicable law. These modifications to the fiduciary duties are detrimental to our unitholders and preferred unitholders because they restrict the remedies available for actions that might otherwise constitute a breach of fiduciary duty and permit conflicts of interest to be resolved in a manner that is not in the best interests of our partnership or the best interests of our unitholders and preferred unitholders. See Item 7.B “Related Party Transactions—Conflicts of Interest and Fiduciary Duties”.

Our organizational and ownership structure may create significant conflicts of interest that may be resolved in a manner that is not in the best interests of our partnership or the best interests of our unitholders and preferred unitholders.

Our organizational and ownership structure involves a number of relationships that may give rise to conflicts of interest between our partnership, our unitholders and preferred unitholders, on the one hand, and Brookfield, on the other hand. In certain instances, the interests of Brookfield may differ from the interests of our partnership, our preferred unitholders and our unitholders, including with respect to the types of acquisitions made, the timing and amount of distributions by our partnership, the reinvestment of returns generated by our operations, the use of leverage when making acquisitions and the appointment of outside advisors and service providers, including as a result of the reasons described under Item 7.B “Related Party Transactions”.

In addition, the Service Provider, an affiliate of Brookfield, provides management services to us pursuant to our Master Services Agreement. Pursuant to our Master Services Agreement, on a quarterly basis, we pay a base management fee to the Service Provider equal to 0.3125% (1.25% annually) of the market value of our partnership. For purposes of calculating the base management fee, the market value of our partnership is equal to the aggregate value of all our outstanding units (assuming full conversion of Brookfield’s limited partnership interests in Brookfield Infrastructure into units), preferred units and securities of the other Service Recipients that are not held by Brookfield Infrastructure, plus all outstanding third party debt with recourse to a Service Recipient, less all cash held by such entities. Infrastructure Special LP will also receive incentive distributions based on the amount by which quarterly distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed specified target levels as set forth in the Holding LP’s limited partnership agreement. For a further explanation of the base management fee and incentive distributions, see Item 6.A “Directors and Senior Management—Management Fee” and Item 7.B “Related Party Transactions—Incentive Distributions”. This relationship may give rise to conflicts of interest between us, our unitholders and preferred unitholders, on the one hand, and Brookfield, on the other, as Brookfield’s interests may differ from the interests of Brookfield Infrastructure, our unitholders and preferred unitholders.

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Our General Partner, the sole shareholder of which is Brookfield, has sole authority to determine whether we will make distributions and the amount of distributions on our units and timing of these distributions. The arrangements we have with Brookfield may create an incentive for Brookfield to take actions which would have the effect of increasing distributions and fees payable to it, which may be to the detriment of us, our unitholders and preferred unitholders. For example, because the base management fee is calculated based on the market value of our partnership, it may create an incentive for Brookfield to increase or maintain the market value of our partnership over the near-term when other actions may be more favourable to us or our unitholders and preferred unitholders. Similarly, Brookfield may take actions to increase distributions on our units in order to ensure Brookfield is paid incentive distributions in the near term when other investments or actions may be more favourable to us or our unitholders and preferred unitholders. Also, through Brookfield’s ownership of our units and the Redeemable Partnership Units, it has an effective economic interest in our partnership of approximately 29.6% and therefore may be incentivized to increase distributions payable to our unitholders and thereby to Brookfield.

Our arrangements with Brookfield were negotiated in the context of an affiliated relationship and may contain terms that are less favourable than those which otherwise might have been obtained from unrelated parties.

The terms of our arrangements with Brookfield were effectively determined by Brookfield in the context of the spin-off. While our General Partner’s independent directors are aware of the terms of these arrangements and have approved the arrangements on our behalf, they did not negotiate the terms. These terms, including terms relating to compensation, contractual or fiduciary duties, conflicts of interest and Brookfield’s ability to engage in outside activities, including activities that compete with us, our activities and limitations on liability and indemnification, may be less favourable than otherwise might have resulted if the negotiations had involved unrelated parties. Under our Limited Partnership Agreement, persons who acquire our units or preferred units and their transferees will be deemed to have agreed that none of those arrangements constitutes a breach of any duty that may be owed to them under our Limited Partnership Agreement or any duty stated or implied by law or equity. See Item 10.B “Memorandum and Articles of Association—Description of our Units, Preferred Units, and our Limited Partnership Agreement”.

Our General Partner may be unable or unwilling to terminate the Master Services Agreement.

The Master Services Agreement provides that the Service Recipients may terminate the agreement only if: the Service Provider defaults in the performance or observance of any material term, condition or covenant contained in the agreement in a manner that results in material harm to us and the default continues unremedied for a period of 30 days after written notice of the breach is given to the Service Provider; the Service Provider engages in any act of fraud, misappropriation of funds or embezzlement against any Service Recipient that results in material harm to us; the Service Provider is grossly negligent in the performance of its duties under the agreement and such negligence results in material harm to the Service Recipients; or upon the happening of certain events relating to the bankruptcy or insolvency of the Service Provider. Our General Partner cannot terminate the agreement for any other reason, including if the Service Provider or Brookfield experiences a change of control, and there is no fixed term to the agreement. In addition, because our General Partner is an affiliate of Brookfield, it may be unwilling to terminate the Master Services Agreement, even in the case of a default. If the Service Provider’s performance does not meet the expectations of investors, and our General Partner is unable or unwilling to terminate the Master Services Agreement, the market price of our units or preferred units could suffer. Furthermore, the termination of the Master Services Agreement would terminate our partnership’s rights under the Relationship Agreement and our Licensing Agreements. See Item 7.B “Related Party Transactions—Relationship Agreement” and Item 7.B “Related Party Transactions—Licensing Agreements”.

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The liability of the Service Provider is limited under our arrangements with it and we have agreed to indemnify the Service Provider against claims that it may face in connection with such arrangements, which may lead it to assume greater risks when making decisions relating to us than it otherwise would if acting solely for its own account.

Under the Master Services Agreement, the Service Provider has not assumed any responsibility other than to provide or arrange for the provision of the services described in the Master Services Agreement in good faith and will not be responsible for any action that our General Partner takes in following or declining to follow its advice or recommendations. In addition, under our Limited Partnership Agreement, the liability of our General Partner and its affiliates, including the Service Provider, is limited to the fullest extent permitted by law to conduct involving bad faith, fraud or willful misconduct or, in the case of a criminal matter, action that was known to have been unlawful. The liability of the Service Provider under the Master Services Agreement is similarly limited, except that the Service Provider is also liable for liabilities arising from gross negligence. In addition, our partnership has agreed to indemnify the Service Provider to the fullest extent permitted by law from and against any claims, liabilities, losses, damages, costs or expenses incurred by an indemnified person or threatened in connection with our operations, investments and activities or in respect of or arising from the Master Services Agreement or the services provided by the Service Provider, except to the extent that the claims, liabilities, losses, damages, costs or expenses are determined to have resulted from the conduct in respect of which such persons have liability as described above. These protections may result in the Service Provider tolerating greater risks when making decisions than otherwise would be the case, including when determining whether to use leverage in connection with acquisitions. The indemnification arrangements to which the Service Provider is a party may also give rise to legal claims for indemnification that are adverse to our partnership, our unitholders and preferred unitholders. See Item 6.A “Directors and Senior Management—Our Master Services Agreement—Indemnification and Limitations on Liability”.

Risks Relating to Our Partnership Structure

Brookfield Infrastructure and our operating entities use leverage and such indebtedness may result in Brookfield Infrastructure or our operating entities being subject to certain covenants which restrict our ability to engage in certain types of activities or to make distributions to equity.

The Holding LP and many of our Holding Entities and operating entities have entered into credit facilities or have incurred other forms of debt, including for the purposes of acquisitions and investments as well as for general corporate purposes. The total quantum of exposure to debt within Brookfield Infrastructure is significant, and we may become more highly leveraged in the future. Some facilities are fully drawn, while some have amounts of principal which are undrawn.

Highly leveraged assets are inherently more sensitive to declines in revenues, increases in expenses and interest rates and adverse economic, market and industry developments. A leveraged company’s income and net assets also tend to increase or decrease at a greater rate than would otherwise be the case if money had not been borrowed. As a result, the risk of loss associated with a leveraged company, all other things being equal, is generally greater than for companies with comparatively less debt. In addition, the use of indebtedness in connection with an acquisition may give rise to negative tax consequences to certain investors. Leverage may also result in a requirement for short-term liquidity, which may force the sale of assets at times of low demand and/or prices for such assets. This may mean that we are unable to realize fair value for the assets in a sale.

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Our credit facilities also contain covenants applicable to the relevant borrower and events of default. Covenants can relate to matters including limitations on financial indebtedness, dividends, investments, or minimum amounts for interest coverage, Adjusted EBITDA, cash flow or net worth. If an event of default occurs, or minimum covenant requirements are not satisfied, this can result in a requirement to immediately repay any drawn amounts or the imposition of other restrictions including a prohibition on the payment of distributions to equity.

Our credit facilities or other debt or debt-like instruments may or may not be rated. Should such debt or debt-like instruments be rated, a credit downgrade may have an adverse impact on the cost of such debt.

Our partnership is a holding entity and currently we rely on the Holding LP and, indirectly, the Holding Entities and our operating entities to provide us with the funds necessary to pay distributions and meet our financial obligations.

Our partnership is a holding entity and its sole material asset is its managing general partnership interest and preferred limited partnership interest in the Holding LP, which owns all of the common shares of the Holding Entities, through which we hold all of our interests in the operating entities. Our partnership has no independent means of generating revenue. As a result, we depend on distributions and other payments from the Holding LP and, indirectly, the Holding Entities and our operating entities to provide us with the funds necessary to pay distributions on our units and preferred units and to meet our financial obligations. The Holding LP, the Holding Entities and our operating entities are legally distinct from us and some of them are or may become restricted in their ability to pay dividends and distributions or otherwise make funds available to us pursuant to local law, regulatory requirements and their contractual agreements, including agreements governing their financing arrangements, such as the Holding LP’s credit facilities and other indebtedness incurred by the Holding Entities and operating entities. Any other entities through which we may conduct operations in the future will also be legally distinct from us and may be similarly restricted in their ability to pay dividends and distributions or otherwise make funds available to us under certain conditions. The Holding LP, the Holding Entities and our operating entities will generally be required to service their debt obligations before making distributions to us or their parent entities, as applicable, thereby reducing the amount of our cash flow available to pay distributions, fund working capital and satisfy other needs.

Our partnership anticipates that the only distributions that it will receive in respect of our partnership’s managing general partnership interest in the Holding LP will consist of amounts that are intended to assist our partnership in making distributions to our unitholders in accordance with our partnership’s distribution policy and to allow our partnership to pay expenses as they become due. Distributions received in respect of our partnership’s preferred limited partnership interest in the Holding LP will consist of amounts that are intended to assist our partnership in making distributions to our preferred unitholders in accordance with the terms of our preferred units. The declaration and payment of cash distributions by our partnership is at the discretion of our General Partner. Our partnership is not required to make such distributions and neither our partnership nor our General Partner can assure you that our partnership will make such distributions as intended.

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While we plan to review our partnership’s distributions to our unitholders periodically, there is no guarantee that we will be able to increase, or even maintain the level of distributions that are paid. Historically, as a result of this review, we decided to increase distributions in each of the last eight years. However, such historical increases in distribution payments may not be reflective of any future increases in distribution payments which will be subject to review by the board of directors of our General Partner taking into account prevailing circumstances at the relevant time. Although we intend to make distributions on our units in accordance with our distribution policy, our partnership is not required to pay distributions on our units and neither our partnership nor our General Partner can assure you that our partnership will be able to increase or even maintain the level of distributions on our units that are made in the future.

Future sales or issuances of our units or preferred units in the public markets, or the perception of such sales or issuances, could depress the trading price of our units and/or preferred units.

The sale or issuance of a substantial number of our units, preferred units or other equity related securities of our partnership in the public markets, or the perception that such sales or issuances could occur, could depress the market price of our units or preferred units and impair our ability to raise capital through the sale of additional units or preferred units. For example, in September 2017, we issued 16,628,000 units in a public offering in the United States and Canada, together with 7,423,000 additional Redeemable Partnership Units to Brookfield in a concurrent private placement, and in January 2018, we raised C$200 million of gross proceeds through the issuance of Series 9 Preferred Units in Canada. We cannot predict the effect that future sales or issuances of our units, preferred units or other equity-related securities would have on the market price of our units or preferred units.

Our partnership is not, and does not intend to become, regulated as an investment company under the Investment Company Act (and similar legislation in other jurisdictions) and if our partnership was deemed an “investment company” under the Investment Company Act, applicable restrictions could make it impractical for us to operate as contemplated.

The Investment Company Act (and similar legislation in other jurisdictions) provide certain protections to investors and impose certain restrictions on companies that are required to be regulated as investment companies. Among other things, such rules limit or prohibit transactions with affiliates, impose limitations on the issuance of debt and equity securities and impose certain governance requirements. Our partnership has not been and does not intend to become regulated as an investment company and our partnership intends to conduct its activities so it will not be deemed to be an investment company under the Investment Company Act (and similar legislation in other jurisdictions). In order to ensure that we are not deemed to be an investment company, we may be required to materially restrict or limit the scope of our operations or plans. We will be limited in the types of acquisitions that we may make, and we may need to modify our organizational structure or dispose of assets of which we would not otherwise dispose. Moreover, if anything were to happen which causes our partnership to be deemed an investment company under the Investment Company Act, it would be impractical for us to operate as contemplated. Agreements and arrangements between and among us and Brookfield would be impaired, the type and amount of acquisitions that we would be able to make as a principal would be limited and our business, financial condition and results of operations would be materially adversely affected. Accordingly, we would be required to take extraordinary steps to address the situation, such as the amendment or termination of the Master Services Agreement, the restructuring of our partnership and the Holding Entities, the amendment of our Limited Partnership Agreement or the termination of our partnership, any of which could materially adversely affect the value of our units and preferred units. In addition, if our partnership were deemed to be an investment company under the Investment Company Act, it would be taxable as a corporation for U.S. federal income tax purposes, and such treatment could materially adversely affect the value of our units and preferred units.

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Our partnership is an “SEC foreign issuer” under Canadian securities regulations and is exempt from certain requirements of Canadian securities laws and a “foreign private issuer” under U.S. securities laws and as a result is subject to disclosure obligations different from requirements applicable to U.S. domestic registrants listed on the New York Stock Exchange (“NYSE”).

Although our partnership is a reporting issuer in Canada, it is an “SEC foreign issuer” and is exempt from certain Canadian securities laws relating to disclosure obligations and proxy solicitation, subject to certain conditions. Therefore, there may be instances where publicly available information in Canada about our partnership is either different or presented in a different manner than would be the case if we were a typical Canadian reporting issuer.

Although our partnership is subject to the periodic reporting requirement of the U.S. Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder (“Exchange Act”), the periodic disclosure required of foreign private issuers under the Exchange Act is different from periodic disclosure required of U.S. domestic registrants. Therefore, there may be instances where publicly available information about our partnership is either different or presented in a different manner than what is typically published by or about other public limited partnerships in the U.S. that are U.S. domestic issuers. As a foreign private issuer, our partnership is exempt from certain other sections of the Exchange Act to which U.S. domestic issuers are subject, including the requirement to provide our unitholders with information statements or proxy statements that comply with the Exchange Act. In addition, insiders and large unitholders of our partnership are not obligated to file reports under Section 16 of the Exchange Act, and certain corporate governance rules imposed by the NYSE are inapplicable to our partnership as it is a foreign private issuer.

We may be subject to the risks commonly associated with a separation of economic interest from control or the incurrence of debt at multiple levels within an organizational structure.

Our ownership and organizational structure is similar to structures whereby one company controls another company which in turn holds controlling interests in other companies; thereby, the company at the top of the chain may control the company at the bottom of the chain even if its effective equity position in the bottom company is less than a controlling interest. Brookfield controls the sole shareholder of our General Partner and, as a result of such ownership of our General Partner, Brookfield is able to control the appointment and removal of our General Partner’s directors and, accordingly, exercises substantial influence over us. In turn, we often have a majority controlling interest or a significant influence in our investments. Even though Brookfield currently has an effective economic interest in our partnership of approximately 29.6% as a result of ownership of our units and the Redeemable Partnership Units, over time Brookfield may reduce this economic interest while still maintaining its controlling interest, and, therefore, Brookfield may use its control rights in a manner that conflicts with the economic interests of our other unitholders and preferred unitholders. For example, despite the fact that we have a conflicts protocol in place, which addresses the requirement for independent approval and other requirements for transactions in which there is greater potential for a conflict of interest to arise, including transactions with affiliates of Brookfield, because Brookfield will be able to exert substantial influence over us, and, in turn, over our investments, there is a greater risk of transfer of assets of our investments at non-arm’s length values to Brookfield and its affiliates. In addition, debt incurred at multiple levels within the chain of control could exacerbate the separation of economic interest from controlling interest at such levels, thereby creating an incentive to leverage us and our investments. Any such increase in debt would also make us more sensitive to declines in revenues, increases in expenses and interest rates, and adverse market conditions. The servicing of any such debt would also reduce the amount of funds available to pay distributions to us and ultimately to our unitholders and preferred unitholders.

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Our failure to maintain effective internal controls could have a material adverse effect on our business in the future and the price of our units and preferred units.

Any failure to maintain adequate internal controls over financial reporting or to implement required, new or improved controls, or difficulties encountered in their implementation, could cause us to report material weaknesses or other deficiencies in our internal controls over financial reporting and could result in errors or misstatements in our consolidated financial statements that could be material. If we or our independent registered public accounting firm were to conclude that our internal controls over financial reporting were not effective, investors could lose confidence in our reported financial information and the price of our units and preferred units could decline. Our failure to achieve and maintain effective internal controls could have a material adverse effect on our business in the future, our access to the capital markets and investors’ perception of us. In addition, material weaknesses in our internal controls could require significant expense and management time to remediate.

Risks Relating to Our Units and Preferred Units

Our unitholders and preferred unitholders do not have a right to vote on partnership matters or to take part in the management of our partnership.

Under our Limited Partnership Agreement, our unitholders and preferred unitholders are not entitled to vote on matters relating to our partnership, such as acquisitions, dispositions or financing, or to participate in the management or control of our partnership. In particular, our unitholders and preferred unitholders do not have the right to remove our General Partner, to cause our General Partner to withdraw from our partnership, to cause a new general partner to be admitted to our partnership, to appoint new directors to our General Partner’s board of directors, to remove existing directors from our General Partner’s board of directors or to prevent a change of control of our General Partner. In addition, except for certain fundamental matters and as prescribed by applicable laws, our unitholders’ and preferred unitholders consent rights apply only with respect to certain amendments to our Limited Partnership Agreement. As a result, unlike holders of common stock of a corporation, our unitholders are not able to influence the direction of our partnership, including its policies and procedures, or to cause a change in its management, even if they are unsatisfied with the performance of our partnership. Consequently, our unitholders may be deprived of an opportunity to receive a premium for their units in the future through a sale of our partnership and the trading price of our units may be adversely affected by the absence or a reduction of a takeover premium in the trading price. Unitholders and preferred unitholders only have a right to vote under limited circumstances as described in Item 10.B “Memorandum and Articles of Association—Description of Our Units, Preferred Units and Our Limited Partnership Agreement.”

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The market price of our units and preferred units may be volatile.

The market price of our units and preferred units may be highly volatile and could be subject to wide fluctuations. Some of the factors that could negatively affect the price of our units and preferred units include: general market and economic conditions, including disruptions, downgrades, credit events and perceived problems in the credit markets; actual or anticipated variations in our quarterly operating results or distributions on our units; actual or anticipated variations or trends in market interest rates; changes in our investments or asset composition; write-downs or perceived credit or liquidity issues affecting our assets; market perception of our partnership, our business and our assets; our level of indebtedness and/or adverse market reaction to any indebtedness we incur in the future; our ability to raise capital on favourable terms or at all; loss of any major funding source; the termination of our Master Services Agreement or additions or departures of our or Brookfield’s key personnel; changes in market valuations of similar infrastructure companies; speculation in the press or investment community regarding us or Brookfield; and changes in U.S. tax laws that make it impractical or impossible for our partnership to continue to be taxable as a partnership for U.S. federal income tax purposes. Securities markets in general have experienced extreme volatility that has often been unrelated to the operating performance of particular companies or partnerships. Any broad market fluctuations may adversely affect the trading price of our units and preferred units.

We may need additional funds in the future and we may issue additional units or preferred units in lieu of incurring indebtedness which may dilute existing holders of our units or we may issue securities that have rights and privileges that are more favourable than the rights and privileges accorded to our unitholders and preferred unitholders.

Under our Limited Partnership Agreement subject to the terms of any preferred units then outstanding, we may issue additional partnership securities, including units, preferred units and options, rights, warrants and appreciation rights relating to partnership securities for any purpose and for such consideration and on such terms and conditions as our General Partner may determine. Subject to the terms of any preferred units outstanding, our General Partner’s board of directors will be able to determine the class, designations, preferences, rights, powers and duties of any additional partnership securities, including any rights to share in our profits, losses and distributions, any rights to receive partnership assets upon our dissolution or liquidation and any redemption, conversion and exchange rights. Subject to the terms of any preferred units outstanding, our General Partner may use such authority to issue additional units or preferred units, which could dilute holders of our units, or to issue securities with rights and privileges that are more favourable than those of our units or preferred units. Subject to the terms of any preferred units then outstanding, holders of units and preferred units will not have any pre-emptive right or any right to consent to or otherwise approve the issuance of any such securities or the terms on which any such securities may be issued.

Non-U.S. unitholders will be subject to foreign currency risk associated with Brookfield Infrastructure’s distributions.

A significant number of our unitholders will reside in countries where the U.S. dollar is not the functional currency. Our distributions are denominated in U.S. dollars but may be settled in the local currency of the unitholder receiving the distribution. For each non-U.S. unitholder, the value received in the local currency from the distribution will be determined based on the exchange rate between the U.S. dollar and the applicable local currency at the time of payment. As such, if the U.S. dollar depreciates significantly against the local currency of the non-U.S. unitholder, the value received by such unitholder in its local currency will be adversely affected.

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U.S. investors in our units and preferred units may find it difficult or impossible to enforce service of process and enforcement of judgments against us and directors and officers of our General Partner and the Service Provider.

We were established under the laws of Bermuda, and most of our subsidiaries are organized in jurisdictions outside of the United States. In addition, our directors and senior management identified in this annual report on Form 20-F are located outside of the United States. Certain of the directors and officers of our General Partner and the Service Provider reside outside of the United States. A substantial portion of our assets are, and the assets of the directors and officers of our General Partner and the Service Provider identified in this annual report on Form 20-F may be, located outside of the United States. It may not be possible for investors to effect service of process within the United States upon the directors and officers of our General Partner and the Service Provider. It may also not be possible to enforce against us or the directors and officers of our General Partner and the Service Provider judgments obtained in U.S. courts predicated upon the civil liability provisions of applicable securities law in the United States.

Canadian investors in our units and preferred units may find it difficult or impossible to enforce service of process and enforcement of judgments against us and the directors and officers of our General Partner and the Service Provider.

We were established under the laws of Bermuda, and most of our subsidiaries are organized in jurisdictions outside of Canada. Certain of the directors and officers of our General Partner and the Service Provider reside outside of Canada. A substantial portion of our assets are, and the assets of the directors and officers of our General Partner and the Service Provider and the experts identified in this annual report on Form 20-F may be, located outside of Canada. It may not be possible for investors to effect service of process within Canada upon the directors and officers of our General Partner and the Service Provider. It may also not be possible to enforce against us, the experts identified in this annual report on Form 20-F, or the directors and officers of our General Partner and the Service Provider judgments obtained in Canadian courts predicated upon the civil liability provisions of applicable securities laws in Canada.

We may not be able to continue paying comparable or growing cash distributions to our unitholders in the future.

The amount of cash we can distribute to our unitholders depends upon the amount of cash we receive from the Holding LP and, indirectly, the Holding Entities and the operating entities. The amount of cash the Holding LP, the Holding Entities and the operating entities generate will fluctuate from quarter to quarter and will depend upon, among other things: the weather in the jurisdictions in which they operate; the level of their operating costs; and prevailing economic conditions. In addition, the actual amount of cash we will have available for distribution will also depend on other factors, such as: the level of costs related to litigation and regulatory compliance matters; the cost of acquisitions, if any; our debt service requirements; fluctuations in our working capital needs; our ability to borrow under our credit facilities; our ability to access capital markets; restrictions on distributions contained in our debt agreements; and the amount, if any, of cash reserves established by our General Partner in its discretion for the proper conduct of our business. As a result of all these factors, we cannot guarantee that we will have sufficient available cash to pay a specific level of cash distributions to our unitholders. Furthermore, unitholders should be aware that the amount of cash we have available for distribution depends primarily upon the cash flow of the Holding LP, the Holding Entities and the operating entities, and is not solely a function of profitability, which is affected by non-cash items. As a result, we may declare and/or pay cash distributions on our units during periods when we record net losses.

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Risks Related to Taxation

General

Changes in tax law and practice may have a material adverse effect on the operations of our partnership, the Holding Entities, and the operating entities and, as a consequence, the value of our assets and the net amount of distributions payable to our unitholders.

Our structure, including the structure of the Holding Entities and the operating entities, is based on prevailing taxation law and practice in the local jurisdictions in which we operate. Any change in tax legislation (including in relation to taxation rates) and practice in these jurisdictions could adversely affect these entities, as well as the net amount of distributions payable to our unitholders. Taxes and other constraints that would apply to our operating entities in such jurisdictions may not apply to local institutions or other parties, and such parties may therefore have a significantly lower effective cost of capital and a corresponding competitive advantage in pursuing such acquisitions.

Our partnership’s ability to make distributions depends on it receiving sufficient cash distributions from its underlying operations, and we cannot assure our unitholders that our partnership will be able to make cash distributions to them in amounts that are sufficient to fund their tax liabilities.

Our Holding Entities and operating entities may be subject to local taxes in each of the relevant territories and jurisdictions in which they operate, including taxes on income, profits or gains and withholding taxes. As a result, our partnership’s cash available for distribution is indirectly reduced by such taxes, and the post-tax return to our unitholders is similarly reduced by such taxes. We intend for future acquisitions to be assessed on a case-by-case basis and, where possible and commercially viable, structured so as to minimize any adverse tax consequences to our unitholders as a result of making such acquisitions.

In general, a unitholder that is subject to income tax in Canada or the United States must include in income its allocable share of our partnership’s items of income, gain, loss and deduction (including, so long as it is treated as a partnership for tax purposes, our partnership’s allocable share of those items of the Holding LP) for each of our partnership’s fiscal years ending with or within such unitholder’s tax year. See Item 10.E “Taxation—Certain Material Canadian Federal Income Tax Considerations” and “Taxation—Certain Material U.S. Federal Income Tax Considerations”. However, the cash distributed to a unitholder may not be sufficient to pay the full amount of such unitholder’s tax liability in respect of its investment in our partnership, because each unitholder’s tax liability depends on such unitholder’s particular tax situation and the tax treatment of the underlying activities or assets of our partnership. If our partnership is unable to distribute cash in amounts that are sufficient to fund our unitholders’ tax liabilities, each of our unitholders will still be required to pay income taxes on its share of our partnership’s taxable income.

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As a result of holding our units, our unitholders may be subject to U.S. federal, state, local or non-U.S. taxes and return filing obligations in jurisdictions in which they are not resident for tax purposes or otherwise not subject to tax.

Our unitholders may be subject to U.S. federal, state, local and non-U.S. taxes, including unincorporated business taxes and estate, inheritance or intangible taxes that are imposed by the various jurisdictions in which our partnership entities do business or own property now or in the future, even if our unitholders do not reside in any of those jurisdictions. Our unitholders may be required to file income tax returns and pay income taxes in some or all of these jurisdictions. Further, our unitholders may be subject to penalties for failure to comply with these requirements. Although our partnership will attempt, to the extent reasonably practicable, to structure our partnership operations and investments so as to minimize income tax filing obligations by our unitholders in such jurisdictions, there may be circumstances in which our partnership is unable to do so. It is the responsibility of each unitholder to file all U.S. federal, state, local, and non-U.S. tax returns that may be required of such unitholder.

Our unitholders may be exposed to transfer pricing risks.

To the extent that our partnership, the Holding LP, the Holding Entities or the operating entities enter into transactions or arrangements with parties with whom they do not deal at arm’s length, including Brookfield, the relevant tax authorities may seek to adjust the quantum or nature of the amounts included or deducted from taxable income by such entities if they consider that the terms and conditions of such transactions or arrangements differ from those that would have been made between persons dealing at arm’s length. This could result in more tax (and penalties and interest) being paid by such entities, and therefore the return to investors could be reduced. For Canadian tax purposes, a transfer pricing adjustment may in certain circumstances result in additional income being allocated to a unitholder with no corresponding cash distribution or in a dividend being deemed to be paid by a Canadian-resident to a non-arm’s length non-resident, which is subject to Canadian withholding tax.

Our General Partner believes that the base management fee and any other amount that is paid to the Service Provider will be commensurate with the value of the services being provided by the Service Provider and comparable to the fees or other amounts that would be agreed to in an arm’s length arrangement. However, no assurance can be given in this regard.

If the relevant tax authority were to assert that an adjustment should be made under the transfer pricing rules to an amount that is relevant to the computation of the income of the Holding LP or our partnership, such assertion could result in adjustments to amounts of income (or loss) allocated to our unitholders by our partnership for tax purposes. In addition, we might also be liable for transfer pricing penalties in respect of transfer pricing adjustments unless reasonable efforts were made to determine, and use, arm’s length transfer prices. Generally, reasonable efforts in this regard are only considered to be made if contemporaneous documentation has been prepared in respect of such transactions or arrangements that support the transfer pricing methodology.

For Canadian tax purposes, the general tax risks described above are equally relevant to preferred unitholders in respect of their preferred units.

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The U.S. Internal Revenue Service (“IRS”) or Canada Revenue Agency (“CRA”) may not agree with certain assumptions and conventions that our partnership uses in order to comply with applicable U.S. and Canadian federal income tax laws or that our partnership uses to report income, gain, loss, deduction, and credit to our unitholders.

Our partnership will apply certain assumptions and conventions in order to comply with applicable tax laws and to report income, gain, deduction, loss, and credit to a unitholder in a manner that reflects such unitholder’s beneficial ownership of partnership items, taking into account variation in ownership interests during each taxable year because of trading activity. However, these assumptions and conventions may not be in compliance with all aspects of the applicable tax requirements. A successful IRS or CRA challenge to such assumptions or conventions could adversely affect the amount of tax benefits available to our unitholders and could require that items of income, gain, deduction, loss, or credit, including interest deductions, be adjusted, reallocated or disallowed in a manner that adversely affects our unitholders. See Item 10.E “Taxation—Certain Material Canadian Federal Income Tax Considerations” and “Taxation—Certain Material U.S. Federal Income Tax Considerations”.

United States

If our partnership or the Holding LP were to be treated as a corporation for U.S. federal income tax purposes, the value of our units might be adversely affected.

The value of our units to unitholders will depend in part on the treatment of our partnership and the Holding LP as partnerships for U.S. federal income tax purposes. However, in order for our partnership to be treated as a partnership for U.S. federal income tax purposes, under present law, 90% or more of our partnership’s gross income for every taxable year must consist of qualifying income, as defined in Section 7704 of the U.S. Internal Revenue Code of 1986, as amended (“U.S. Internal Revenue Code”), and our partnership must not be required to register, if it were a U.S. corporation, as an investment company under the Investment Company Act and related rules. Although our General Partner intends to manage our partnership’s affairs so that our partnership will not need to be registered as an investment company if it were a U.S. corporation and so that it will meet the 90% test described above in each taxable year, our partnership may not meet these requirements, or current law may change so as to cause, in either event, our partnership to be treated as a corporation for U.S. federal income tax purposes. If our partnership (or the Holding LP) were treated as a corporation for U.S. federal income tax purposes, adverse U.S. federal income tax consequences could result for our unitholders and our partnership (or the Holding LP, as applicable), as described in greater detail in Item 10.E “Taxation—Certain Material U.S. Federal Income Tax Considerations—Partnership Status of Our Partnership and the Holding LP”.

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We may be subject to U.S. backup withholding tax or other U.S. withholding taxes if any unitholder fails to comply with U.S. tax reporting rules or if the IRS or other applicable state or local taxing authority does not accept our withholding methodology, and such excess withholding tax cost will be an expense borne by our partnership and, therefore, by all of our unitholders on a pro rata basis.

We may become subject to U.S. “backup” withholding tax or other U.S. withholding taxes with respect to any unitholder who fails to timely provide our partnership (or the applicable clearing agent or other intermediary) with an IRS Form W-9 or IRS Form W-8, as the case may be, or if the withholding methodology we use is not accepted by the IRS or other applicable state or local taxing authority. See Item 10.E “Taxation—Certain Material U.S. Federal Income Tax Considerations—Administrative Matters—Withholding and Backup Withholding”. To the extent that any unitholder fails to timely provide the applicable form (or such form is not properly completed), or should the IRS or other applicable state or local taxing authority not accept our withholding methodology, our partnership might treat such U.S. backup withholding taxes or other U.S. withholding taxes as an expense, which would be borne indirectly by all of our unitholders on a pro rata basis. As a result, our unitholders that fully comply with their U.S. tax reporting obligations may bear a share of such burden created by other unitholders that do not comply with the U.S. tax reporting rules.

Tax-exempt organizations may face certain adverse U.S. tax consequences from owning our units.

Our General Partner intends to use commercially reasonable efforts to structure the activities of our partnership and the Holding LP, to avoid generating income connected with the conduct of a trade or business (which income generally would constitute “unrelated business taxable income” (“UBTI”) to the extent allocated to a tax-exempt organization). However, neither our partnership nor the Holding LP is prohibited from incurring indebtedness, and no assurance can be provided that neither our partnership nor the Holding LP will generate UBTI attributable to debt-financed property in the future. In particular, UBTI includes income attributable to debt-financed property, and neither our partnership nor the Holding LP is prohibited from financing the acquisition of property with debt. The potential for income to be characterized as UBTI could make our units an unsuitable investment for a tax-exempt organization. Each tax-exempt organization should consult its own tax adviser to determine the U.S. federal income tax consequences of an investment in our units.

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If our partnership were engaged in a U.S. trade or business, non-U.S. persons would face certain adverse U.S. tax consequences from owning our units.

Our General Partner intends to use commercially reasonable efforts to structure the activities of our partnership and the Holding LP to avoid generating income treated as effectively connected with a U.S. trade or business, including effectively connected income attributable to the sale of a “United States real property interest”, as defined in the U.S. Internal Revenue Code. If our partnership were deemed to be engaged in a U.S. trade or business, or to realize gain from the sale or other disposition of a U.S. real property interest, Non-U.S. Holders (as defined in Item 10.E “Taxation—Certain Material U.S. Federal Income Tax Considerations”) generally would be required to file U.S. federal income tax returns and could be subject to U.S. federal withholding tax at the highest marginal U.S. federal income tax rates applicable to ordinary income. Under the Tax Cuts and Jobs Act (as defined below), if, contrary to expectation, our partnership were engaged in a U.S. trade or business, then gain or loss from the sale of our units by a Non-U.S. Holder would be treated as effectively connected with such trade or business to the extent that such Non-U.S. Holder would have had effectively connected gain or loss had our partnership sold all of its assets at their fair market value as of the date of such sale. In such case, any such effectively connected gain generally would be taxable at the regular graduated U.S. federal income tax rates, and the amount realized from such sale generally would be subject to a 10% U.S. federal withholding tax. See Item 10.E “Taxation—Certain Material U.S. Federal Income Tax Considerations—Consequences to Non-U.S. Holders”.

To meet U.S. federal income tax and other objectives, our partnership and the Holding LP may invest through U.S. and non-U.S. Holding Entities that are treated as corporations for U.S. federal income tax purposes, and such Holding Entities may be subject to corporate income tax.

To meet U.S. federal income tax and other objectives, our partnership and the Holding LP may invest through U.S. and non-U.S. Holding Entities that are treated as corporations for U.S. federal income tax purposes, and such Holding Entities may be subject to corporate income tax. Consequently, items of income, gain, loss, deduction, or credit realized in the first instance by the operating entities will not flow, for U.S. federal income tax purposes, directly to the Holding LP, our partnership, or our unitholders, and any such income or gain may be subject to a corporate income tax, in the United States or other jurisdictions, at the level of the Holding Entity. Any such additional taxes may adversely affect our partnership’s ability to maximize its cash flow.

Our unitholders taxable in the United States may be viewed as holding an indirect interest in an entity classified as a “passive foreign investment company” or “controlled foreign corporation” for U.S. federal income tax purposes.

U.S. Holders may face adverse U.S. tax consequences arising from the ownership of an indirect interest in a “passive foreign investment company” (“PFIC”) or “controlled foreign corporation” (“CFC”). These investments may produce taxable income prior to the receipt of cash relating to such income, and U.S. Holders will be required to take such income into account in determining their gross income subject to tax. In addition, all or a portion of any gain realized upon the sale of a CFC may be taxable at ordinary income rates. Further, with respect to gain realized upon the sale of and excess distributions from a PFIC for which an election for current inclusions is not made, such income would be taxable at ordinary income rates and subject to an additional tax equivalent to an interest charge on the deferral of income inclusions from the PFIC. See Item 10.E “Taxation—Certain Material U.S. Federal Income Tax Considerations—Consequences to U.S. Holders—Passive Foreign Investment Companies” and “Taxation—Certain Material U.S. Federal Income Tax Considerations—Consequences to U.S. Holders—Controlled Foreign Corporations”. Each U.S. Holder should consult its own tax adviser regarding the implications of the PFIC and CFC rules for an investment in our units.

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Tax gain or loss from the disposition of our units could be more or less than expected.

Upon the sale of our units, a U.S. Holder generally will recognize gain or loss for U.S. federal income tax purposes equal to the difference between the amount realized and such holder’s adjusted tax basis in such units. Prior distributions to a U.S. Holder in excess of the total net taxable income allocated to such holder will have decreased such unitholder’s tax basis in our units. Therefore, such excess distributions will increase a U.S. Holder’s taxable gain or decrease such unitholder’s taxable loss when our units are sold, and may result in a taxable gain even if the sale price is less than the original cost. A portion of the amount realized, whether or not representing gain, could be ordinary income to such U.S. Holder.

Our partnership structure involves complex provisions of U.S. federal income tax law for which no clear precedent or authority may be available. The tax characterization of our partnership structure is also subject to potential legislative, judicial, or administrative change and differing interpretations, possibly on a retroactive basis.

The U.S. federal income tax treatment of our unitholders depends in some instances on determinations of fact and interpretations of complex provisions of U.S. federal income tax law for which no clear precedent or authority may be available. Unitholders should be aware that the U.S. federal income tax rules, particularly those applicable to partnerships, are constantly under review by the Congressional tax-writing committees and other persons involved in the legislative process, the IRS, the Treasury Department and the courts, frequently resulting in changes which could adversely affect the value of our units or cause our partnership to change the way it conducts its activities. For example, changes to the U.S. federal tax laws and interpretations thereof could make it more difficult or impossible for our partnership to be treated as a partnership that is not taxable as a corporation for U.S. federal income tax purposes, change the character or treatment of portions of our partnership’s income, reduce the net amount of distributions available to our unitholders, or otherwise affect the tax considerations of owning our units. In addition, our partnership’s organizational documents and agreements permit our General Partner to modify our Limited Partnership Agreement, without the consent of our unitholders, to address such changes. These modifications could have a material adverse impact on our unitholders. See Item 10.E “—Taxation—Certain Material U.S. Federal Income Tax Considerations—Administrative Matters—New Legislation or Administrative or Judicial Action”.

Our partnership’s delivery of required tax information for a taxable year may be subject to delay, which could require a unitholder who is a U.S. taxpayer to request an extension of the due date for such unitholder’s income tax return.

Our partnership has agreed to use commercially reasonable efforts to provide U.S. tax information (including IRS Schedule K-1 information needed to determine a unitholder’s allocable share of our partnership’s income, gain, losses, and deductions) no later than 90 days after the close of each calendar year. However, providing this U.S. tax information to our unitholders will be subject to delay in the event of, among other reasons, the late receipt of any necessary tax information from lower-tier entities. It is therefore possible that, in any taxable year, a unitholder will need to apply for an extension of time to file such unitholder’s tax returns. In addition, unitholders that do not ordinarily have U.S. federal tax filing requirements will not receive a Schedule K-1 and related information unless such unitholders request it within 60 days after the close of each calendar year. See Item 10.E “Certain Material U.S. Federal Income Tax Considerations—Administrative Matters—Information Returns and Audit Procedures”.

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If the IRS makes an audit adjustment to our income tax returns, it may assess and collect any taxes (including penalties and interest) resulting from such audit adjustment directly from us, in which case cash available for distribution to our unitholders might be substantially reduced.

Under the Bipartisan Budget Act of 2015, for taxable years beginning after December 31, 2017, if the IRS makes an audit adjustment to our income tax returns, it may assess and collect any taxes (including penalties and interest) resulting from such audit adjustment directly from our partnership instead of unitholders (as under prior law). We may be permitted to elect to have our General Partner and our unitholders take such audit adjustment into account in accordance with their interests in us during the taxable year under audit. However, there can be no assurance that we will choose to make such election or that it will be available in all circumstances. If we do not make the election, and we pay taxes, penalties, or interest as a result of an audit adjustment, then cash available for distribution to our unitholders might be substantially reduced. As a result, our current unitholders might bear some or all of the cost of the tax liability resulting from such audit adjustment, even if our current unitholders did not own our units during the taxable year under audit. The foregoing considerations also apply with respect to our partnership’s interest in the Holding LP.

Under the Foreign Account Tax Compliance (“FATCA”) provisions of the Hiring Incentives to Restore Employment Act of 2010, certain payments made or received by our partnership may be subject to a 30% federal withholding tax, unless certain requirements are met.

Under FATCA, a 30% withholding tax may apply to certain payments of U.S.-source income made to our partnership, the Holding LP, the Holding Entities, or the operating entities, or by our partnership to a unitholder, unless certain requirements are met, as described in greater detail in Item 10.E “Taxation—Certain Material U.S. Federal Income Tax Considerations—Administrative Matters—Foreign Account Tax Compliance”. The 30% withholding tax may also apply to certain payments made on or after January 1, 2019 that are attributable to U.S.-source income or that constitute gross proceeds from the disposition of property that could produce U.S.-source dividends or interest. To ensure compliance with FATCA, information regarding certain unitholders’ ownership of our units may be reported to the IRS or to a non-U.S. governmental authority. Unitholders should consult their own tax advisers regarding the consequences under FATCA of an investment in our units.

The effect of comprehensive U.S. tax reform legislation on our partnership and unitholders, whether adverse or favorable, is uncertain.

On December 22, 2017, the U.S. president signed into law H.R.1, “An Act to provide for reconciliation pursuant to titles II and V of the concurrent resolution on the budget for fiscal year 2018” (informally titled the “Tax Cuts and Jobs Act”). Among a number of significant changes to the U.S. federal income tax laws, the Tax Cuts and Jobs Act reduces the marginal U.S. corporate income tax rate from 35% to 21%, limits the deduction for net interest expense, shifts the United States toward a modified territorial tax system, and imposes new taxes to combat erosion of the U.S. federal income tax base. The effect of the Tax Cuts and Jobs Act on our partnership, the Holding LP, the Holding Entities, the operating entities, and our unitholders, whether adverse or favorable, is uncertain, and may not become evident for some period of time. Unitholders are urged to consult their own tax advisers regarding the implications of the Tax Cuts and Jobs Act for an investment in our units.

Canada

For purposes of the following Canadian tax risks, references to our “units” are to the limited partnership units in our partnership, including the preferred units, and references to our “unitholders” are to the holders of our units and preferred units.

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If the subsidiaries that are corporations (“Non-Resident Subsidiaries”) and that are not resident or deemed to be resident in Canada for purposes of the Income Tax Act (Canada) (together with the regulations thereunder, “Tax Act”) and that are “controlled foreign affiliates” (as defined in the Tax Act and referred to herein as “CFAs”) in which the Holding LP directly invests earned income that is “foreign accrual property income” (as defined in the Tax Act and referred to herein as “FAPI”), our unitholders may be required to include amounts allocated from our partnership in computing their income for Canadian federal income tax purposes even though there may be no corresponding cash distribution.

Certain of the Non-Resident Subsidiaries in which the Holding LP directly invests are expected to be CFAs of the Holding LP. If any CFA of the Holding LP or any direct or indirect subsidiary thereof that is itself a CFA of the Holding LP (an “Indirect CFA”) earns income that is characterized as FAPI in a particular taxation year of the CFA or Indirect CFA, the FAPI allocable to the Holding LP must be included in computing the income of the Holding LP for Canadian federal income tax purposes for the fiscal period of the Holding LP in which the taxation year of that CFA or Indirect CFA ends, whether or not the Holding LP actually receives a distribution of that FAPI. Our partnership will include its share of such FAPI of the Holding LP in computing its income for Canadian federal income tax purposes and our unitholders will be required to include their proportionate share of such FAPI allocated from our partnership in computing their income for Canadian federal income tax purposes. As a result, our unitholders may be required to include amounts in their income for Canadian federal income tax purposes even though they have not and may not receive an actual cash distribution of such amounts. The Tax Act contains anti-avoidance rules to address certain foreign tax credit generator transactions (the “Foreign Tax Credit Generator Rules”). Under the Foreign Tax Credit Generator Rules, the “foreign accrual tax” (as defined in the Tax Act) applicable to a particular amount of FAPI included in the Holding LP’s income in respect of a particular “foreign affiliate” (as defined in the Tax Act) of the Holding LP may be limited in certain specified circumstances. See Item 10.E “Taxation—Certain Material Canadian Federal Income Tax Considerations”.

Unitholders may be required to include imputed amounts in their income for Canadian federal income tax purposes in accordance with section 94.1 of the Tax Act.

Section 94.1 of the Tax Act contains rules relating to interests in entities that are not resident or deemed to be resident in Canada for purposes of the Tax Act or not situated in Canada, other than a CFA of the taxpayer (the “Non-Resident Entities”), that could in certain circumstances cause income to be imputed to unitholders for Canadian federal income tax purposes, either directly or by way of allocation of such income imputed to our partnership or to the Holding LP. See Item 10.E “Taxation—Certain Material Canadian Federal Income Tax Considerations”.

Unitholders’ foreign tax credits for Canadian federal income tax purposes will be limited if the Foreign Tax Credit Generator Rules apply in respect of the foreign “business-income tax” or “non-business-income tax” (each as defined in the Tax Act) paid by our partnership or the Holding LP to a foreign country.

Under the Foreign Tax Credit Generator Rules, the foreign “business-income tax” or “non-business-income tax” for Canadian federal income tax purposes for any taxation year may be limited in certain circumstances. If the Foreign Tax Credit Generator Rules apply, the allocation to a unitholder of foreign “business-income tax” or “non-business-income tax” paid by our partnership or the Holding LP, and therefore, such unitholder’s foreign tax credits for Canadian federal income tax purposes, will be limited. See Item 10.E “Taxation—Certain Material Canadian Federal Income Tax Considerations”.

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Unitholders who are not and are not deemed to be resident in Canada for purposes of the Tax Act and who do not use or hold, and are not deemed to use or hold, their units of our partnership in connection with a business carried on in Canada (“non-Canadian limited partners”), may be subject to Canadian federal income tax with respect to any Canadian source business income earned by our partnership or the Holding LP if our partnership or the Holding LP were considered to carry on business in Canada.

If our partnership or the Holding LP were considered to carry on business in Canada for purposes of the Tax Act, non-Canadian limited partners would be subject to Canadian federal income tax on their proportionate share of any Canadian source business income earned or considered to be earned by our partnership, subject to the potential application of the safe harbour rule in section 115.2 of the Tax Act and any relief that may be provided by any relevant income tax treaty or convention.

Our General Partner intends to manage the affairs of our partnership and the Holding LP, to the extent possible, so that they do not carry on business in Canada and are not considered or deemed to carry on business in Canada for purposes of the Tax Act. Nevertheless, because the determination of whether our partnership or the Holding LP is carrying on business and, if so, whether that business is carried on in Canada, is a question of fact that is dependent upon the surrounding circumstances, the CRA might contend successfully that either or both of our partnership and the Holding LP carries on business in Canada for purposes of the Tax Act.

If our partnership or the Holding LP is considered to carry on business in Canada or is deemed to carry on business in Canada for the purposes of the Tax Act, non-Canadian limited partners that are corporations would be required to file a Canadian federal income tax return for each taxation year in which they are a non-Canadian limited partner regardless of whether relief from Canadian taxation is available under an applicable income tax treaty or convention. Non-Canadian limited partners who are individuals would only be required to file a Canadian federal income tax return for any taxation year in which they are allocated income from our partnership from carrying on business in Canada that is not exempt from Canadian taxation under the terms of an applicable income tax treaty or convention.

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Non-Canadian limited partners may be subject to Canadian federal income tax on capital gains realized by our partnership or the Holding LP on dispositions of “taxable Canadian property” (as defined in the Tax Act).

A non-Canadian limited partner will be subject to Canadian federal income tax on its proportionate share of capital gains realized by our partnership or the Holding LP on the disposition of “taxable Canadian property” other than “treaty-protected property” (as defined in the Tax Act). “Taxable Canadian property” includes, but is not limited to, property that is used or held in a business carried on in Canada and shares of corporations that are not listed on a “designated stock exchange” (as defined in the Tax Act) if more than 50% of the fair market value of the shares is derived from certain Canadian properties during the 60-month period immediately preceding the particular time. Property of our partnership and the Holding LP generally will be “treaty-protected property” to a non-Canadian limited partner if the gain from the disposition of the property would, because of an applicable income tax treaty or convention, be exempt from tax under the Tax Act. Our General Partner does not expect our partnership or the Holding LP to realize capital gains or losses from dispositions of “taxable Canadian property”. However, no assurance can be given in this regard. Non-Canadian limited partners will be required to file a Canadian federal income tax return in respect of a disposition of “taxable Canadian property” by our partnership or the Holding LP unless the disposition is an “excluded disposition” for the purposes of section 150 of the Tax Act. However, non-Canadian limited partners that are corporations will still be required to file a Canadian federal income tax return in respect of a disposition of “taxable Canadian property” that is an “excluded disposition” for the purposes of section 150 of the Tax Act if tax would otherwise be payable under Part I of the Tax Act by the non-Canadian limited partners in respect of the disposition but is not because of an applicable income tax treaty or convention (otherwise than in respect of a disposition of “taxable Canadian property” that is “treaty-protected property” of the corporation). In general, an “excluded disposition” is a disposition of property by a taxpayer in a taxation year where (a) the taxpayer is a non-resident of Canada at the time of the disposition; (b) no tax is payable by the taxpayer under Part I of the Tax Act for the taxation year; (c) the taxpayer is not liable to pay any amounts under the Tax Act in respect of any previous taxation year (other than certain amounts for which the CRA holds adequate security); and (d) each “taxable Canadian property” disposed of by the taxpayer in the taxation year is either (i) “excluded property” (as defined in subsection 116(6) of the Tax Act) or (ii) property in respect of the disposition of which a certificate under subsection 116(2), (4) or (5.2) of the Tax Act has been issued by the CRA. Non-Canadian limited partners should consult their own tax advisors with respect to the requirements to file a Canadian federal income tax return in respect of a disposition of “taxable Canadian property” by our partnership or the Holding LP.

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Non-Canadian limited partners may be subject to Canadian federal income tax on capital gains realized on the disposition of our units if our units are “taxable Canadian property”.

Any capital gain arising from the disposition or deemed disposition of our units by a non-Canadian limited partner will be subject to taxation in Canada, if, at the time of the disposition or deemed disposition, our units are “taxable Canadian property” of the non-Canadian limited partner, unless our units are “treaty-protected property” to such non-Canadian limited partner. In general, our units will not constitute “taxable Canadian property” of any non-Canadian limited partner at the time of disposition or deemed disposition, unless (a) at any time in the 60-month period immediately preceding the disposition or deemed disposition, more than 50% of the fair market value of our units was derived, directly or indirectly (excluding through a corporation, partnership or trust, the shares or interests in which were not themselves “taxable Canadian property”), from one or any combination of (i) real or immovable property situated in Canada; (ii) “Canadian resource properties” (as defined in the Tax Act); (iii) “timber resource properties” (as defined in the Tax Act); and (iv) options in respect of, or interests in, or for civil law rights in, such property, whether or not such property exists, or (b) our units are otherwise deemed to be “taxable Canadian property”. Since our partnership’s assets will consist principally of units of the Holding LP, our units would generally be “taxable Canadian property” at a particular time if the units of the Holding LP held by our partnership derived, directly or indirectly (excluding through a corporation, partnership or trust, the shares or interests in which were not themselves “taxable Canadian property”) more than 50% of their fair market value from properties described in (i) to (iv) above, at any time in the 60-month period preceding the particular time. Our General Partner does not expect our units to be “taxable Canadian property” of any non-Canadian limited partner at any time but no assurance can be given in this regard. See Item 10.E “Taxation—Certain Material Canadian Federal Income Tax Considerations”. Even if our units constitute “taxable Canadian property”, our units will be “treaty-protected property” if the gain on the disposition of our units is exempt from tax under the Tax Act under the terms of an applicable income tax treaty or convention. If our units constitute “taxable Canadian property”, non-Canadian limited partners will be required to file a Canadian federal income tax return in respect of a disposition of our units unless the disposition is an “excluded disposition” (as discussed above). If our units constitute “taxable Canadian property”, non-Canadian limited partners should consult their own tax advisors with respect to the requirement to file a Canadian federal income tax return in respect of a disposition of our units.

Non-Canadian limited partners may be subject to Canadian federal income tax reporting and withholding tax requirements on the disposition of “taxable Canadian property”.

Non-Canadian limited partners who dispose of “taxable Canadian property”, other than “excluded property” and certain other property described in subsection 116(5.2) of the Tax Act, (or who are considered to have disposed of such property on the disposition of such property by our partnership or the Holding LP), are obligated to comply with the procedures set out in section 116 of the Tax Act and obtain a certificate pursuant to the Tax Act. In order to obtain such certificate, the non-Canadian limited partner is required to report certain particulars relating to the transaction to CRA not later than 10 days after the disposition occurs. Our General Partner does not expect our units to be “taxable Canadian property” of any non-Canadian limited partner and does not expect our partnership or the Holding LP to dispose of property that is “taxable Canadian property” but no assurance can be given in these regards.

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Payments of dividends or interest (other than interest not subject to Canadian federal withholding tax) by residents of Canada to the Holding LP will be subject to Canadian federal withholding tax and we may be unable to apply a reduced rate taking into account the residency or entitlement to relief under an applicable income tax treaty or convention of our unitholders.

Our partnership and the Holding LP will each be deemed to be a non-resident person in respect of certain amounts paid or credited or deemed to be paid or credited to them by a person resident or deemed to be resident in Canada, including dividends or interest. Dividends or interest (other than interest not subject to Canadian federal withholding tax) paid or deemed to be paid by a person resident or deemed to be resident in Canada to the Holding LP will be subject to withholding tax under Part XIII of the Tax Act at the rate of 25%. However, the CRA’s administrative practice in similar circumstances is to permit the rate of Canadian federal withholding tax applicable to such payments to be computed by looking through the partnership and taking into account the residency of the partners (including partners who are resident in Canada) and any reduced rates of Canadian federal withholding tax that any non-Canadian limited partners may be entitled to under an applicable income tax treaty or convention, provided that the residency status and entitlement to treaty benefits can be established. In determining the rate of Canadian federal withholding tax applicable to amounts paid by the Holding Entities to the Holding LP, our General Partner expects the Holding Entities to look-through the Holding LP and our partnership to the residency of the partners of our partnership (including partners who are resident in Canada) and to take into account any reduced rates of Canadian federal withholding tax that non-Canadian limited partners may be entitled to under an applicable income tax treaty or convention in order to determine the appropriate amount of Canadian federal withholding tax to withhold from dividends or interest paid to the Holding LP. However, there can be no assurance that the CRA will apply its administrative practice in this context. If the CRA’s administrative practice is not applied and the Holding Entities withhold Canadian federal withholding tax from applicable payments on a look-through basis, the Holding Entities may be liable for additional amounts of Canadian federal withholding tax plus any associated interest and penalties. Under the Canada-United States Tax Convention (1980) (the “Treaty”), a Canadian-resident payer is required in certain circumstances to look-through fiscally transparent partnerships, such as our partnership, and the Holding LP to the residency and Treaty entitlements of their partners and take into account the reduced rates of Canadian federal withholding tax that such partners may be entitled to under the Treaty.

While our General Partner expects the Holding Entities to look-through our partnership and the Holding LP in determining the rate of Canadian federal withholding tax applicable to amounts paid or deemed to be paid by the Holding Entities to the Holding LP, we may be unable to accurately or timely determine the residency of our unitholders for purposes of establishing the extent to which Canadian federal withholding taxes apply or whether reduced rates of withholding tax apply to some or all of our unitholders. In such a case, the Holding Entities will withhold Canadian federal withholding tax from all payments made to the Holding LP that are subject to Canadian federal withholding tax at the rate of 25%. Canadian-resident unitholders will be entitled to claim a credit for such taxes against their Canadian federal income tax liability but non-Canadian limited partners will need to take certain steps to receive a refund or credit in respect of any such Canadian federal withholding taxes withheld equal to the difference between the withholding tax at a rate of 25% and the withholding tax at the reduced rate they are entitled to under an applicable income tax treaty or convention. See Item 10.E “Taxation—Certain Material Canadian Federal Income Tax Considerations” for further detail. Unitholders should consult their own tax advisors concerning all aspects of Canadian federal withholding taxes.

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Our units may or may not continue to be “qualified investments” under the Tax Act for registered plans.

Provided that our units are listed on a “designated stock exchange” (which currently includes the NYSE and the TSX), our units will be “qualified investments” under the Tax Act for a trust governed by a registered retirement savings plan (“RRSP”), deferred profit sharing plan, registered retirement income fund (“RRIF”), registered education savings plan (“RESP”), registered disability savings plan (“RDSP”), and a tax-free savings account (“TFSA”). However, there can be no assurance that our units will continue to be listed on a “designated stock exchange”. There can also be no assurance that tax laws relating to “qualified investments” will not be changed. Taxes may be imposed in respect of the acquisition or holding of non-qualified investments by such registered plans and certain other taxpayers and with respect to the acquisition or holding of “prohibited investments” (as defined in the Tax Act) by an RRSP, RRIF, TFSA, RDSP or RESP.

Notwithstanding the foregoing, an annuitant under an RRSP or RRIF, a holder of a TFSA or RDSP or a subscriber of an RESP, as the case may be, will be subject to a penalty tax if our units held in an RRSP, RRIF, TFSA, RDSP or RESP are “prohibited investments” for the RRSP, RRIF, TFSA, RDSP or RESP as the case may be. Generally, our units will not be a “prohibited investment” for a trust governed by an RRSP, RRIF, TFSA, RDSP or RESP, provided that the annuitant under the RRSP or RRIF, the holder of the TFSA or RDSP or the subscriber of the RESP, as the case may be, deals at arm’s length with our partnership for purposes of the Tax Act and does not have a “significant interest” (as defined in the Tax Act for purposes of the prohibited investment rules) in our partnership. Unitholders who will hold our units in an RRSP, RRIF, TFSA, RDSP or RESP should consult with their own tax advisors regarding the application of the foregoing prohibited investment rules having regard to their particular circumstances.

The Canadian federal income tax consequences to our unitholders could be materially different in certain respects from those described in this Form 20-F if our partnership or the Holding LP is a “SIFT partnership” (as defined in the Tax Act).

Under the rules in the Tax Act applicable to a “SIFT partnership” (the “SIFT Rules”), certain income and gains earned by a “SIFT partnership” will be subject to income tax at the partnership level at a rate similar to a corporation, and allocations of such income and gains to its partners will be taxed as a dividend from a “taxable Canadian corporation” (as defined in the Tax Act). In particular, a “SIFT partnership” will be required to pay a tax on the total of its income from businesses carried on in Canada, income from “non-portfolio properties” (as defined in the Tax Act) other than taxable dividends, and taxable capital gains from dispositions of “non-portfolio properties”. “Non-portfolio properties” include, among other things, equity interests or debt of corporations, trusts or partnerships that are resident in Canada, and of non-resident persons or partnerships the principal source of income of which is one or any combination of sources in Canada (other than a “portfolio investment entity”, as defined in the Tax Act), that are held by the “SIFT partnership” and have a fair market value that is greater than 10% of the equity value of such entity, or that have, together with debt or equity that the “SIFT partnership” holds of entities affiliated (within the meaning of the Tax Act) with such entity, an aggregate fair market value that is greater than 50% of the equity value of the “SIFT partnership”. The tax rate that is applied to the above mentioned sources of income and gains is set at a rate equal to the “net corporate income tax rate”, plus the “provincial SIFT tax rate” (each as defined in the Tax Act).

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A partnership will be a “SIFT partnership” throughout a taxation year if at any time in the taxation year (i) it is a “Canadian resident partnership” (as defined in the Tax Act), (ii) “investments” (as defined in the Tax Act) in the partnership are listed or traded on a stock exchange or other public market, and (iii) it holds one or more “non-portfolio properties”. For these purposes, a partnership will be a “Canadian resident partnership” at a particular time if (a) it is a “Canadian partnership” (as defined in the Tax Act) at that time, (b) it would, if it were a corporation, be resident in Canada (including, for greater certainty, a partnership that has its central management and control located in Canada), or (c) it was formed under the laws of a province. A “Canadian partnership” for these purposes is a partnership all of whose members are resident in Canada or are partnerships that are “Canadian partnerships”.

Under the SIFT Rules, our partnership and the Holding LP could each be a “SIFT partnership” if it is a “Canadian resident partnership”. However, the Holding LP would not be a “SIFT partnership” if our partnership is a “SIFT partnership” regardless of whether the Holding LP is a “Canadian resident partnership” on the basis that the Holding LP would be an “excluded subsidiary entity” (as defined in the Tax Act). Our partnership and the Holding LP will be a “Canadian resident partnership” if the central management and control of these partnerships is located in Canada. This determination is a question of fact and is expected to depend on where our General Partner is located and exercises central management and control of the respective partnerships. Our General Partner will take appropriate steps so that the central management and control of these entities is not located in Canada such that the SIFT Rules should not apply to our partnership or the Holding LP at any relevant time. However, no assurance can be given in this regard. If our partnership or the Holding LP is a “SIFT partnership”, the Canadian federal income tax consequences to our unitholders could be materially different in certain respects from those described in Item 10.E. “Taxation—Certain Material Canadian Federal Income Tax Considerations”. In addition, there can be no assurance that the SIFT Rules will not be revised or amended in the future such that the SIFT Rules will apply.

ITEM 4.    INFORMATION ON THE COMPANY

4.A    HISTORY AND DEVELOPMENT OF BROOKFIELD INFRASTRUCTURE

Overview

Brookfield Infrastructure owns and operates high quality, long-life assets that generate stable cash flows, require relatively minimal maintenance capital expenditures and, by virtue of barriers to entry and other characteristics, tend to appreciate in value over time. Our current operations consist of utilities, transport, energy and communications infrastructure businesses in North and South America, Europe and Asia Pacific. Brookfield Infrastructure has appointed the Service Provider to provide certain management, administrative and advisory services for a fee under the Master Services Agreement. Brookfield owns an approximate 29.6% interest in our partnership on a fully exchanged basis.

Our mission is to own and operate a globally diversified portfolio of high quality infrastructure assets that will generate sustainable and growing distributions over the long-term for our unitholders. To accomplish this objective, we will seek to leverage our operating segments to acquire infrastructure assets and actively manage them to extract additional value following our initial investment. An integral part of our strategy is to participate with institutional investors in Brookfield-sponsored partnerships that target acquisitions that suit our profile. We focus on partnerships in which Brookfield has sufficient influence or control to deploy an operations-oriented approach.

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We target a total return of 12% to 15% per annum on the infrastructure assets that we own, measured over the long-term. We intend to generate this return from the in-place cash flows of our operations plus growth through investments in upgrades and expansions of our asset base, as well as acquisitions. We determine our distributions to unitholders based primarily on an assessment of our operating performance. FFO is used to assess our operating performance and can be used on a per unit basis as a proxy for future distribution growth over the long-term. See Item 5 “Operating and Financial Review and Prospects—Management’s Discussion and Analysis of Financial Condition and Results of Operations” for more detail.

Our distributions are underpinned by stable, highly regulated and contracted cash flows generated from operations. The Partnership’s objective is to pay a distribution that is sustainable on a long-term basis. The Partnership has set its target payout ratio target at 60-70% of funds from operations. In sizing what we believe to be a conservative payout ratio, we typically retain approximately 15-20% of AFFO that we utilize to fund some or all of our internally funded growth capital expenditures.

In light of the current prospects for our business, the Board of Directors of our General Partner recently approved an 8% increase in our annual distribution to $1.88 per unit, or 47 cents per unit quarterly. Distributions have grown at a compound annual growth rate of 11% since inception of our partnership in 2008. We target a 5% to 9% annual distribution growth in light of the growth that we foresee in our operations. We intend to review our distribution per unit in the first quarter of each year in the normal course. Please refer to Item 3.D “Risk Factors—Risks Relating to Our Partnership Structure—Our partnership is a holding entity and currently we rely on the Holding LP and, indirectly, the Holding Entities and our operating entities to provide us with the funds necessary to pay distributions and meet our financial obligations”.

History and Development of our Business

Our partnership, Brookfield Infrastructure Partners L.P., is a Bermuda exempted limited partnership that was established on May 21, 2007 under the provisions of the Bermuda Exempted Partnership Act of 1992 (“Bermuda Exempted Partnerships Act”) and the Bermuda Limited Partnership Act. Our registered office is 73 Front Street, Hamilton HM 12, Bermuda and our telephone number at this address is +1-441-294-3309. Our partnership was spun-off from Brookfield on January 31, 2008.

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The following table outlines the formative events in the history and development of our business:

Date	Segment	Event
May 2007	Corporate:	Prior to the spin‑off, Brookfield acquired the following interests in our utilities and timber operations: (i) a 100% interest in our North American electricity transmission operations, in 1982; (ii) a 50% interest in our Canadian freehold timberlands, in May 2005; (iii) a 28% interest in our Chilean electricity transmission operations, in June 2006; (iv) 7%‑18% interests in TBE, a group of five related transmission investments in Brazil, in 2006; and (v) a 100% interest in our U.S. freehold timberlands, in April 2007.
May 2007	Utilities:	Our Chilean electricity transmission system was acquired by Brookfield on June 30, 2006 by a consortium of buyers led by Brookfield. As part of the stock purchase agreement between the parties, the buyers agreed to pay a purchase price adjustment of $160 million that was determined on April 4, 2008 following the final resolution of the 2006 transmission rate proceeding. In conjunction with our disproportionate funding of this purchase price adjustment, our ownership in our Chilean electricity transmission system increased to approximately 18% from approximately 11% at the time of the spin‑off.
May 2007	Utilities & Timber:	In conjunction with the spin‑off, Brookfield contributed the following interests in our utilities and timber operations to us: (i) a 100% interest in our North American electricity transmission operations; (ii) a 38% interest in our Canadian freehold timberlands; (iii) an 11% interest in our Chilean electricity transmission operations; (iv) 7%‑18% interests in TBE; and (v) a 30% interest in our U.S. freehold timberlands.
January 2008	Corporate:	On January 31, 2008, our partnership was spun off from Brookfield and its units began trading on the NYSE under the symbol “BIP”.
November 2008	Timber:	On November 4, 2008, we invested $103 million into our U.S. freehold timberlands. The proceeds were used to partially fund the add‑on acquisition of a 67,661 acre tree farm in Washington State for $163 million and repay an outstanding bridge loan whose principal amount was approximately $250 million.
January 2009	Utilities	In January 2009, Brookfield and its partner Isolux, through their joint venture company, Wind Energy Texas Transmission LLC (“WETT”), were awarded the right to build $500 million of transmissions lines in Texas to facilitate the delivery of wind power to population centers as part of the Texas Competitive Renewable Energy Zones program. In the third quarter of 2009, Brookfield contributed its interest in WETT to a Brookfield sponsored infrastructure fund in which we own an interest. Upon finalization of the route selection and determination of the number of substations that comprise our system, this investment opportunity increased to approximately $750 million.
June 2009	Utilities	On June 30, 2009, we completed the sale of our interest in our Brazilian transmission operations for after‑tax proceeds of $275 million, including proceeds from foreign exchange currency hedges. The sale resulted in the recognition of an approximately $68 million after‑tax gain over book value.
September 2009	Corporate:	On September 10, 2009, our partnership’s units commenced trading on the TSX under the symbol “BIP.UN”.

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Date	Segment	Event
November 2009	Corporate:	On November 20, 2009, we invested $941 million to acquire an interest in Prime, and direct interests in two assets from Prime (collectively, the “BBI Transaction”). In total, our investment in Prime was part of a comprehensive recapitalization in which Prime raised over $1.6 billion from our partnership, Brookfield and other investors to repay debt. The first direct investment was in a UK port operation, which is one of the largest in the UK. The second investment was an economic interest in an Australian terminal operation, one of the largest coal export terminals in the world. Our interests in North American gas transmission operations, Australian regulated distribution operations, UK regulated distribution operations, European energy distribution operations, Australian energy distribution operations, Australian rail operations, European port operations and an additional interest in the Australian terminal operations were held through Prime.
November 2009	Corporate:	Our participation in the BBI Transaction was financed in part by a public offering of 40.7 million units at a price of C$15.55 per unit that closed in November 2009. The net proceeds of the public offering, inclusive of the exercise of the underwriters’ over‑allotment option, were approximately C$601 million. We funded the balance of the $940 million investment in the BBI Transaction through the issuance of Redeemable Partnership Units and general partner units of the Holding LP to Brookfield at a price of approximately $13.71 per unit, representing the price of our units issued under the public offering net of underwriting commissions payable by our partnership.
September 2010	Corporate:	On September 20, 2010, Brookfield closed a $2.7 billion infrastructure fund. Brookfield manages the fund and has committed to the fund’s total capital commitments, with Brookfield Infrastructure participating in the fund to the extent target acquisitions suit Brookfield Infrastructure’s profile. We hold all or a portion of our interests in our Australian regulated terminal operations, our UK port operations, our Texas electricity transmission project, our high‑voltage direct current (“HVDC”) submarine transmission line, our South American toll road operations, our Colombian distribution utility, our gas storage operations and our district heating and cooling operations through this fund.
December 2010	Corporate:	On December 8, 2010, Brookfield Infrastructure increased its ownership of Prime from 40% to 100% through a Merger Transaction whereby Prime security holders received 0.24 of our units per Prime security held and a special distribution of A$0.20 per Prime security. Pursuant to the merger, approximately 50.7 million units were issued, including 0.9 million Redeemable Partnership Units to Brookfield.
October 2011	Corporate:	On October 26, 2011, Brookfield Infrastructure issued approximately 19.4 million units at $24.75 per unit under its shelf registrations in the U.S. and Canada. Brookfield acquired approximately 8.3 million Redeemable Partnership Units at the offering price net of commissions to maintain its interest on a fully exchanged basis. Net proceeds from this equity offering totaled approximately $657 million. The proceeds were used to fund an equity investment in our Australian rail, including the pay down of our corporate credit facility, which had been primarily drawn over the previous nine months to fund the investment in our rail expansion program, and a $160 million investment in Chilean toll road assets.

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Date	Segment	Event
December 2011	Transport:	On December 15, 2011 we invested approximately $160 million to purchase an ownership stake in two related Chilean toll road assets comprised of a 33 kilometre toll road and tunnel that form part of a key ring road in the transportation network of Santiago, Chile. The toll road and tunnel are long‑life assets that have concessions with expirations in 2033 and 2037, respectively. This investment seeded our toll road platform with high quality assets in a high growth country with a favourable concession regime.
January 2012	Utilities:	On January 27, 2012, we purchased an ownership interest in a Colombian regulated distribution utility. This utility serves a predominantly residential load in Boyacá, a region of 1.3 million inhabitants located 150 kilometres north of Bogotá with emerging cement, steel and coal industries.
April 2012	Energy:	On April 27, 2012, we purchased an ownership interest in a natural gas storage facility in northeastern Alberta for $16 million.
August 2012	Corporate:	In August 2012, Brookfield Infrastructure issued approximately 11.1 million units at an offering price of $33.25 per unit under its shelf registrations in the U.S. and Canada. Brookfield acquired approximately 4.4 million Redeemable Partnership Units at the offering price net of commissions to maintain its interest on a fully exchanged basis. Net proceeds from this equity offering totaled $497 million. The net proceeds were used by Brookfield Infrastructure to partially fund several strategic initiatives further described below.
October 2012	Utilities:	On October 1, 2012, Brookfield Infrastructure acquired Brookfield’s interest in its Chilean transmission system for $235 million. Following this transaction, Brookfield Infrastructure’s ownership interest was 28%.
October 2012	Transport:	On October 1, 2012, we closed the acquisition of an additional interest in our Chilean toll road for $170 million, increasing our ownership to 51%.
October 2012	Corporate:	On October 10, 2012, Brookfield Infrastructure issued C$400 million of five‑year corporate bonds in the Canadian market with a 3.5% interest rate, which was swapped into U.S. dollars at an effective interest rate of 2.7%. Proceeds were used primarily to refinance holding company debt.
October 2012	Energy:	On October 31, 2012, we invested approximately $75 million in a district energy system that serves commercial customers in downtown Toronto, which we acquired in partnership with institutional investors.
November 2012	Utilities:	On November 13, 2012, we completed the merger of our existing UK regulated distribution business with a UK regulated distribution business that we acquired in the third quarter. In conjunction with the merger, we invested $525 million of equity to recapitalize the combined business. On November 30, 2012, Brookfield Infrastructure closed the sale of a 20% interest in the combined business to an institutional investor for proceeds of approximately $235 million. Brookfield Infrastructure maintained control of this business, while bringing on board a respected global infrastructure investor as a minority partner who we believe is well‑suited to work with us in support of the growth of the combined business over the long‑term.

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Date	Segment	Event
December 2012	Transport:	On December 4, 2012, Brookfield Infrastructure purchased a controlling interest in a Brazilian toll road platform, along with Abertis Infraestructuras and institutional partners. Following this acquisition, Brookfield Infrastructure owns interests in 11 toll roads in Brazil and Chile. Its 3,200 kilometre network is diversified with a balance of light and heavy vehicles and urban and interurban traffic. As one of the largest owner/operators of toll roads in the region, Brookfield Infrastructure is well positioned to invest in additional expansions and upgrades of the system as well as add‑on acquisitions and development opportunities in two of the highest growth countries in the region. As required by law, Brookfield Infrastructure and its partners made a tender offer to acquire the interests of the minority holders of the Brazilian toll roads, which resulted in Brookfield Infrastructure acquiring an additional interest in the Brazilian toll road business in September 2013.
December 2012	Corporate:	In December, 2012, Brookfield Infrastructure closed an upsizing of its corporate credit facilities, increasing commitments to $855.6 million from $700 million. Following a second close in January 2013, commitments increased to $900 million. The incremental $200 million of commitments have substantially the same terms as the previous facilities. These corporate credit facilities continue to be available to provide short‑term liquidity for investments and acquisitions as well as general corporate purposes.
December 2012	Timber:	On December 31, 2012, Brookfield Infrastructure completed its sale of a 12.5% interest of its Canadian timberlands for $85 million, and retained a 25% interest in this business.
May 2013	Corporate:	In May 2013, Brookfield Infrastructure issued approximately 6.6 million units at an offering price of $37.75 per unit under its shelf registrations in the U.S. and Canada. Brookfield acquired approximately 2.6 million Redeemable Partnership Units at the offering price net of commissions in order to maintain its interest on a fully‑exchanged basis. Net proceeds from this equity offering totaled approximately $330 million. The proceeds were used for the repayment of amounts outstanding under revolving credit facilities, investment opportunities, working capital and other general corporate purposes.
June 2013	Timber:	On June 7, 2013, Brookfield Infrastructure completed the sale of its remaining 25% interest in its Canadian timberlands for proceeds of approximately $170 million.
July 2013	Timber:	On July 23, 2013, Brookfield Infrastructure completed the sale of its interest in its U.S. Pacific Northwest timberlands for approximately $790 million. The buyer agreed to assume Brookfield Infrastructure’s proportionate debt of approximately $320 million resulting in net proceeds from the transaction of approximately $470 million.
August 2013	Corporate:	In August 2013, Brookfield Infrastructure closed an upsizing of its corporate credit facilities, increasing commitments to $1.4 billion. The incremental $545 million of commitments have substantially the same terms as the previous facilities. These corporate credit facilities continue to be available to provide short‑term liquidity for investments and acquisitions as well as general corporate purposes.
September 2013	Transport:	On September 6, 2013, Brookfield Infrastructure invested approximately $490 million in its Brazilian toll road platform, increasing its ownership to approximately 31%.

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Date	Segment	Event
October 2013	Corporate:	On October 30, 2013, Brookfield closed a $7 billion infrastructure fund. Brookfield manages the fund and has committed to the fund’s total capital commitments, with Brookfield Infrastructure participating in the fund to the extent target acquisitions suit Brookfield Infrastructure’s profile. We hold all or a portion of our interests in our Brazilian rail and port logistics business, North American west coast container terminal, European telecommunications infrastructure operation, U.S. district energy operation and our North American gas storage operations through this fund.
November 2013	Utilities:	On November 29, 2013, Brookfield Infrastructure announced that it completed the sale of its 42% interest in its Asia Pacific regulated distribution business for approximately $415 million.
December 2013	Energy:	On December 2, 2013, Brookfield Infrastructure invested approximately $40 million in a district energy system that serves commercial customers in New Orleans and Houston, which we acquired in partnership with institutional investors. Brookfield Infrastructure owns an approximate 40% interest in the business.
March 2014	Transport:	On March 26, 2014, Brookfield Infrastructure acquired alongside institutional investors an approximate 50% equity stake in Mitsui O.S.K. Lines, Ltd. container terminals in Los Angeles and Oakland, of which Brookfield Infrastructure invested 40% for a total investment of approximately $125 million.
March 2014	Corporate:	On March 28, 2014, Brookfield Infrastructure effected a restructuring pursuant to which the Holding LP’s limited partnership agreement was amended to make our partnership the managing general partner of the Holding LP and to make the Infrastructure Special LP, the former general partner of the Holding LP, a special limited partner of the Holding LP. This change was made in order to simplify the Holding LP’s governance structure and to more clearly delineate our partnership’s governance rights in respect of the Holding LP. As a result, the voting agreement between Brookfield Infrastructure and Brookfield, which required Brookfield to exercise certain of its voting rights in respect of the Holding LP’s former general partner as directed by Brookfield Infrastructure, was terminated and related changes were made to our Limited Partnership Agreement and the Master Services Agreement. Because Brookfield is a party to these agreements, all of the amendments were approved by a special committee of independent directors of the General Partner and the former general partner of the Holding LP. The economic interests of Brookfield Infrastructure were not affected by these changes.
August 2014	Energy:	On August 7, 2014, Brookfield Infrastructure invested alongside institutional investors to acquire two district energy businesses serving Chicago and Las Vegas, and on November 21, 2014, Brookfield Infrastructure invested alongside institutional investors to acquire a district energy business serving Seattle. Brookfield Infrastructure invested approximately $50 million in aggregate for the three businesses and it owns an approximate 40% interest in each business.
August 2014	Transport:	On August 19, 2014, Brookfield Infrastructure invested approximately $370 million, alongside institutional investors to acquire an approximately 11% interest in VLI, one of Brazil’s largest rail and port logistics businesses.

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Date	Segment	Event
August 2014	Corporate	In August 2014, Brookfield Infrastructure closed an extension of its corporate credit facilities to June 30, 2019 and decreased the annual interest rate spread applicable on LIBOR and the unused commitment fee to 120 basis points and 18 basis points, respectively.
December 2014	Energy:	On December 3, 2014, Brookfield Infrastructure acquired alongside institutional investors a 50% interest in Tres Palacios Gas Storage in Texas for approximately $100 million, of which Brookfield Infrastructure invested approximately $40 million.
December 2014	Energy:	On December 31, 2014, Brookfield Infrastructure acquired alongside institutional investors a 100% stake in Lodi Gas Storage in California for approximately $105 million, of which Brookfield Infrastructure invested approximately $40 million.
March 2015	Corporate:	On March 11, 2015, Brookfield Infrastructure issued C$450 million of seven‑year corporate bonds in the Canadian market with a 3.5% interest rate, which was swapped into $360 million on a matched maturity basis at an effective rate of 3.9%. Proceeds were used for general corporate purposes, including to fund new investments that were previously announced and repay amounts outstanding under credit facilities.
March 2015	Corporate:	On March 12, 2015, our Limited Partnership Agreement was amended to permit the authorization and issuance of preferred units, authorize and create the Class A Preferred Units, Series 1 Preferred Units and Series 2 Preferred Units and to make certain consequential changes resulting from such authorization and creation. On March 12, 2015, the limited partnership agreement of the Holding LP was also amended to permit the authorization and issuance of Holding LP Class A Preferred Units, Holding LP Series 1 Preferred Units and Holding LP Series 2 Preferred Units, with terms substantially mirroring the Class A Preferred Units, Series 1 Preferred Units and Series 2 Preferred Units, respectively.
March 2015	Corporate:	On March 12, 2015, our partnership issued 5 million Series 1 Preferred Units at an offering price of C$25.00 per Series 1 Preferred Unit under its shelf registration in Canada. Our Partnership acquired 5 million Holding LP Series 1 Preferred Units at the offering price. Holders of the Series 1 Preferred Units and Holding LP Series 1 Preferred Units will be entitled to receive a cumulative quarterly fixed distribution at a rate of 4.50% annually for the initial period ending June 30, 2020. Proceeds were used for general corporate purposes, including to fund new investments that were previously announced and repay amounts outstanding under credit facilities. Net proceeds from this offering totaled approximately $95 million.
March 2015	Communication Infrastructure:	On March 31, 2015, Brookfield Infrastructure, through a Brookfield sponsored fund, acquired a 21% interest in TDF, a European telecommunications infrastructure operation, for approximately $415 million.

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Date	Segment	Event
April 2015	Corporate:	In April 2015, Brookfield Infrastructure issued approximately 13.4 million units at an offering price of $45.00 per unit under its shelf registrations in the U.S. and Canada. Brookfield acquired approximately 8.1 million Redeemable Partnership Units at the offering price net of commissions on a fully‑exchanged basis. Net proceeds from this equity offering totaled approximately $926 million. The proceeds were used for the repayment of amounts outstanding under revolving credit facilities, investment opportunities, working capital and other general corporate purposes.
June 2015	Corporate:	On June 12, 2015, Brookfield Infrastructure amended its corporate credit facilities to, among other things, effect an extension of those corporate credit facilities to June 30, 2020 its corporate credit facilities. These corporate credit facilities continue to be available to provide short‑term liquidity for investments and acquisitions as well as general corporate purposes.
June 2015	Energy:	In June 2015, Brookfield Infrastructure, along with institutional partners, signed definitive agreements to acquire all of the outstanding common units of Rockpoint Gas Storage Partners LLC (“Rockpoint”). The total equity investment for all parties was $175 million of which Brookfield Infrastructure agreed to invest approximately $70 million for an effective 40% ownership stake. Rockpoint is North America’s largest independent natural gas storage operator with approximately 250 billion cubic feet of natural gas storage.
August 2015	Utilities:	On August 21, 2015, Brookfield Infrastructure completed the sale of its 23% interest in its New England electricity transmission operation for gross proceeds of approximately $65 million and net proceeds of approximately $28 million.
October 2015	Corporate:	On October 30, 2015, Brookfield Infrastructure issued two tranches of corporate bonds in the Canadian market: C$125 million of three‑year bonds with a 3.0% interest rate and C$375 million of five‑year bonds with an interest rate of 3.5%. The three‑year and five‑year bonds were swapped into a combined $378 million bond on a matched maturity basis at an effective rate of 3.8%. The proceeds were used for investment opportunities, working capital and other general corporate purposes.
November 2015	Transport:	On November 5, 2015, an Australian subsidiary of our partnership (the “Acquirer”) acquired 188 million shares in Asciano representing a 14.9% interest. Concurrently, the Acquirer entered into arrangements to acquire an indirect economic interest of an additional 4.3%, for a total direct and indirect interest of 19.3%. Total consideration paid for the interest in Asciano was approximately $1.2 billion, with Brookfield Infrastructure’s share of that investment being approximately $900 million.
December 2015	Corporate:	On December 8, 2015 our partnership issued 5 million Series 3 Preferred Units at an offering price of C$25.00 per Series 3 Preferred Unit under its shelf registration in Canada. Our Partnership acquired 5 million Holding LP Series 3 Preferred Units at the offering price. Holders of the Series 3 Preferred Units and Holding LP Series 3 Preferred Units will be entitled to receive a cumulative quarterly fixed distribution at a rate of 5.50% annually for the initial period ending December 31, 2020. Proceeds were used for investment opportunities, working capital and other general corporate purposes. Net proceeds from this offering totaled approximately $90 million.

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Date	Segment	Event
December 2015	Energy:	On December 10, 2015, Kinder Morgan, Inc and Brookfield Infrastructure jointly acquired, from Myria Holdings, Inc., the 53 percent equity interest in Natural Gas Pipeline Company of America LLC (“NGPL”) not already owned by them for a total purchase price of approximately $242 million. Brookfield Infrastructure paid approximately $106 million and increased its ownership from 26.5% to 50%.
December 2015	Corporate:	On December 11, 2015, Brookfield Infrastructure closed an upsizing of its corporate credit facilities, increasing commitments to $1.875 billion. The incremental $450 million of commitments have substantially the same terms as the previous facilities. These corporate credit facilities continue to be available to provide short‑term liquidity for investments and acquisitions as well as general corporate purposes.
January 2016	Utilities:	On January 29, 2016, Brookfield Infrastructure signed binding agreements to sell its 100% interest in its Ontario electricity transmission operation for gross proceeds of approximately C$370 million, resulting in net proceeds of approximately C$220 million.
February 2016	Transport:	On February 18, 2016, the takeover bid for Asciano Limited made by our partnership, together with institutional partners, lapsed, following the withdrawal of its recommendation by the board of directors of Asciano Limited. This change of recommendation triggered an A$88 million payment to the Brookfield Consortium.
March 2016	Transport:	On March 1, 2016, Brookfield Infrastructure expanded its toll road business through the acquisition of a 40% interest in a toll road business in India from Gammon Infrastructure Projects Limited for consideration of $42 million through a Brookfield‑sponsored infrastructure fund.
March 2016	Corporate:	On March 29, 2016, Brookfield Infrastructure closed an upsizing of its corporate credit facilities, increasing commitments to $1.975 billion. The incremental $100 million of commitments have substantially the same terms as the previous facilities. These corporate credit facilities continue to be available to provide short‑term liquidity for investments and acquisitions as well as general corporate purposes.
April 2016	Energy:	On April 7, 2016, Brookfield Infrastructure and its partner in its North American gas transmission operation each injected $312 million into the business to pay down operating level debt.
May 2016	Transport:	In May 2016, Brookfield Infrastructure, alongside an institutional investor and a partner in the business, executed a privatization of its Brazilian toll road operation. The privatization resulted in our partnership’s ownership interest increasing from 40% to 48% in exchange for cash consideration of $73 million. Subsequent to the privatization, Brookfield Infrastructure, alongside an institutional partner, injected $114 million into the Brazilian toll road operation for growth capital expenditure requirements.
May 2016	Energy:	On May 26, 2016, Brookfield Infrastructure completed the sale of its 100% interest in its European energy distribution operation to a third party for gross proceeds of approximately $135 million and net proceeds of approximately $127 million.

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Date	Segment	Event
June 2016	Corporate:	On June 17, 2016, Brookfield Infrastructure amended its corporate credit facilities to, among other things, effect an extension of those corporate credit facilities to June 30, 2021.
June 2016	Transport:	On June 28, 2016, Brookfield Infrastructure acquired a 17% interest in Rutas de Lima S.A.C, through a Brookfield‑sponsored infrastructure fund, for total consideration of $127 million, comprised of $118 million of cash and an amount payable of $9 million.
June 2016	Utilities:	In June 2016, Brookfield Infrastructure and its partners agreed to construct approximately 2,800 kilometres of greenfield transmission lines in Brazil and establish a business with substantial scale in the country. These are long‑life, 30‑year concession assets that earn cash flows under a stable, availability‑based regulatory framework.
July 2016	Corporate:	On July 8, 2016, Brookfield closed a $14 billion infrastructure fund. Brookfield manages the fund and has committed $4 billion to the fund’s total capital commitments, with Brookfield Infrastructure participating in the fund to the extent target acquisitions suit Brookfield Infrastructure’s investment profile.
July 2016	Energy:	On July 19, 2016, Brookfield Infrastructure acquired a 40% interest in Rockpoint for consideration of $227 million through a Brookfield‑sponsored infrastructure fund. This consideration is comprised of $141 million of Rockpoint senior notes currently owned by Brookfield Infrastructure, which Brookfield Infrastructure paid $104 million to acquire, $19 million of a working capital credit facility provided to Rockpoint by Brookfield Infrastructure prior to the acquisition date, and cash of $67 million.
August 2016	Corporate:	On August 2, 2016, our partnership issued 10 million Series 5 Preferred Units at an offering price of C$25.00 per Series 5 Preferred Unit in a public offering in Canada. Our partnership acquired 10 million Holding LP Series 5 Preferred Units at the offering price. Holders of the Series 5 Preferred Units and Holding LP Series 5 Preferred Units will be entitled to receive a cumulative quarterly fixed distribution at a rate of 5.35% annually for the initial period ending September 30, 2021. Proceeds were used for investment opportunities, working capital and other general corporate purposes. Net proceeds from this offering totaled approximately $186 million.
August 2016	Transport:	On August 18, 2016, Brookfield Infrastructure acquired a 27% interest in Linx Cargo Care and a 13% interest in Patrick Terminals and Logistics (“Patrick”) from Asciano Limited, through a Brookfield‑sponsored infrastructure fund, along with institutional partners, for total consideration of $145 million and $202 million, respectively, resulting in the expansion of Brookfield Infrastructure’s ports business to Australia.
September 2016	Corporate:	On September 14, 2016, our partnership completed a three‑for‑two split of our units by way of a subdivision of units, whereby unitholders received an additional one‑half of a unit for each unit held, resulting in the issuance of an additional approximately 115 million units. Any fractional units otherwise issuable to registered holders as a result of the Unit Split were rounded up to the nearest whole unit. Our preferred units were not affected by the Unit Split. The Managing General Partner Units, Special Limited Partner Units and Redeemable Partnership Units of the Holding LP were concurrently split to reflect the Unit Split.

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Date	Segment	Event
September 2016	Utilities	On September 23, 2016, Brookfield Infrastructure, together with institutional clients of Brookfield Asset Management announced that they had reached an agreement to acquire a 90% controlling stake in Nova Transportadora do Sudeste S.A. (“NTS”) a system of natural gas transmission assets in the southeast of Brazil owned by Petrobras, for approximately US$5.3 billion.
October 2016	Utilities:	In October 2016, Brookfield Infrastructure and its partners agreed to construct an additional 1,400 kilometres of greenfield transmission lines in Brazil, bringing the total development to 4,200 kilometres. Brookfield Infrastructure will deploy approximately $300 million during the construction period. Construction of these projects is underway and they are expected to be commissioned over the subsequent five years.
October 2016	Utilities:	On October 31, 2016, we completed the sale of our 100% interest in the Ontario electricity transmission operation to a third party for gross proceeds of approximately C$370 million and net proceeds of approximately C$220 million.
December 2016	Corporate:	On December 2, 2016, we issued 15,625,000 units at an offering price of $32.00 per unit in public offerings in the U.S. and Canada. In a concurrent private placement, Brookfield acquired 8,139,000 Redeemable Partnership Units at the offering price net of commissions. Gross proceeds from this equity offering totaled approximately $750 million ($730 million net of issuance costs). Our partnership expects to use the net proceeds to partially fund its investment in the NTS acquisition and to deploy backlog of organic growth projects.
December 2016	Transport:	On December 12, 2016, Brookfield Infrastructure invested a further approximately $124 million in its Brazilian toll road business, increasing its ownership to approximately 49%.
January 2017	Corporate:	On January 26, 2017, our partnership issued 12 million Series 7 Preferred Units at an offering price of C$25.00 per Series 7 Preferred Unit in a public offering in Canada. Holders of the Series 7 Preferred Units will be entitled to receive a cumulative quarterly fixed distribution at a rate of 5.00% annually for the initial period ending March 31, 2022. Net proceeds from this offering totaled approximately $220 million.
February 2017	Corporate:	On February 22, 2017, our partnership completed a C$300 million corporate bond issuance through a public offering in Canada. Proceeds were used to partially refinance indebtedness that matured in October 2017.
April 2017	Utilities:	On April 4, 2017, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund, acquired an effective 28% interest in NTS, a system of natural gas transmission assets in the southeast of Brazil, for $1.6 billion. $1.3 billion was due on closing and the balance payable on the fifth anniversary of closing.
April 2017	Corporate:	On April 17, 2017, our partnership completed a C$400 million corporate bond issuance through a public offering in Canada. Proceeds were used for investment opportunities, working capital and other general corporate purposes and to partially refinance indebtedness that matured in October 2017.

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Date	Segment	Event
May 2017	Energy:	On May 31, 2017, Brookfield Infrastructure and its partner in its North American gas transmission operation each injected $200 million into the business to pay down operating level debt.
August 2017	Transport:	On August 28, 2017, Brookfield Infrastructure, through a Brookfield-sponsored infrastructure fund, agreed to acquire two toll roads in Southern India for approximately $350 million. Brookfield Infrastructure is expected to invest approximately $100 million. This transaction is expected to close in early 2018, subject to completion of construction and customary regulatory approvals.
September 2017	Corporate:	On September 15, 2017, our partnership issued 16,628,000 million units at an offering price of $42.10 per unit in public offerings in the U.S. and Canada. In a concurrent private placement, Brookfield acquired 7,423,000 Redeemable Partnership Units at the offering price net of commissions. Gross proceeds from this equity offering totaled approximately $1 billion ($972 million net of issuance costs). Our partnership expects to use the net proceeds primarily to fund future investment opportunities and to deploy our backlog of organic growth projects.
October 2017	Transport:	On October 9, 2017, our partnership, alongside an institutional partner, injected approximately $240 million in our Brazilian toll road operation, increasing our ownership interest to 44.5%.
October 2017	Corporate:	On October 10, 2017, our partnership repaid C$400 million of medium term notes issued in 2012.
November 2017	Corporate:	On November 17, 2017, Brookfield Infrastructure, through a Brookfield-sponsored infrastructure fund, reached agreements to acquire at least 15% of Gas Natural SDG, S.A.’s equity interest in its Colombian natural gas distribution and commercialization business Gas Natural, S.A. ESP and certain affiliates (“Gas Natural”). Brookfield Infrastructure has agreed to pay approximately $100 million for this interest. Completion of this transaction is subject to certain closing conditions and regulatory approvals.
December 2017	Corporate:	On December 22, 2017, Brookfield Infrastructure, through a Brookfield-sponsored infrastructure fund, acquired an effective 3% interest in Gas Natural, for approximately $30 million.
December 2017	Utilities:	Brookfield Infrastructure signed definitive agreements to sell its 27.8% interest in its Chilean electricity transmission operation for $1.3 billion. Completion of this transaction is subject to certain closing conditions, third party consents, and regulatory approvals.
January 2018	Corporate:	On January 23, 2018, our partnership issued 8 million Series 9 Preferred Units at an offering price of C$25.00 per Series 9 Preferred Unit in a public offering in Canada. Holders of the Series 9 Preferred Units will be entitled to receive a cumulative quarterly fixed distribution at a rate of 5.00% annually for the initial period ending March 31, 2023. Net proceeds from this offering totaled approximately C$194 million.

For a description of our principal capital expenditures in the last three fiscal years, see Item 5.B, “Liquidity and Capital Resources—Capital Reinvestment” and Note 30, “Contractual Commitments” in our financial statements included in this annual report on Form 20-F.

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4.B    BUSINESS OVERVIEW

Our Operations

We own a portfolio of infrastructure assets that are diversified by sector and by geography. We have a stable cash flow profile with approximately 95% of our Adjusted EBITDA supported by regulated or contracted revenues. In order to assist our unitholders and preferred unitholders in evaluating our performance and assessing our value, we group our businesses into operating segments based on similarities in their underlying economic drivers.

Our operating segments are summarized below:

Operating Segment(1)	Asset Type	Primary Location(1)
Utilities
Regulated or contractual businesses which earn a return on their asset base	•  Regulated Transmission • Regulated Distribution •  Regulated Terminal	•  North & South America •  Europe & South America •  Asia Pacific
Transport
Provide transportation for freight, bulk commodities and passengers	•  Rail •  Toll Roads •  Ports	•  Asia Pacific & South America •  South America & Asia Pacific •  Europe, North America & Asia Pacific
Energy
Systems that provide energy transmission and storage services	•  Energy Transmission & Storage •  District Energy	•  North America •  North America & Asia Pacific
Communications Infrastructure
Provide essential services and critical infrastructure to the broadcasting and telecom sectors	•  Tower Infrastructure Operations	•  Europe

(1) See Item 5 “Operating and Financial Review and Prospects—Management’s Discussion and Analysis of Financial Condition and Results of Operations” and Item 18 “Financial Statements” for information regarding revenue by segments and geographic market.

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Utilities

Overview

Our utilities segment is comprised of regulated transmission (natural gas and electricity), regulated utilities businesses, including regulated distribution (electricity and natural gas connections), and a regulated terminal (coal export terminal). These businesses earn a return on a regulated or notionally stipulated asset base, which we refer to as rate base, or from revenues in accordance with long-term concession agreements or price control frameworks. Our rate base increases with capital that we invest to upgrade and expand our systems. Depending on the jurisdiction, our rate base may also increase by inflation and maintenance capital expenditures and decrease by regulatory depreciation. The return that we earn is typically determined by a regulator for prescribed periods of time. Thereafter, it may be subject to customary reviews based upon established criteria. Our diversified portfolio of assets allows us to mitigate exposure to any single regulatory regime. In addition, due to the franchise frameworks and economies of scale of our businesses, we often have significant competitive advantages in competing for projects to expand our rate base and earn incremental revenues. Accordingly, we expect this segment to produce stable revenue and margins overtime that should increase with investment of additional capital and inflation. Nearly all of our utility segment’s Adjusted EBITDA is supported by regulated or contractual revenues.

Our objectives for our utilities segment are to invest capital in the expansion of our rate base as well as to provide safe and reliable service for our customers on a cost efficient basis. If we do so, we will be in a position to earn an appropriate return on our rate base. Our performance can be measured by the growth in our rate base, the return on our rate base, and the growth in our AFFO.

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Our utilities segment is comprised of the following:

Regulated Transmission

• Approximately 2,000 kilometres of natural gas pipelines in Brazil

• Approximately 12,000 kilometres of operating transmission lines in North and South America with an additional 3,500 kilometres of greenfield electricity transmission under development in South America⁽¹⁾ 

Regulated Distribution

• Approximately 3.3 million connections, predominantly electricity and natural gas, and approximately 800,000 acquired smart meters

Regulated Terminal

• One of the world’s largest metallurgical coal export terminals, with 85 million tons per annum (“mtpa”) of capacity

Regulated Transmission Operations

Our regulated gas transmission operation in Brazil operates over 2,000 km of natural gas transportation pipelines in the states of Rio de Janeiro, Sao Paulo and Minas Gerais. The total capacity of 158 million cubic meters is fully contracted under long-term “ship-or-pay”, inflation adjusted gas transportation agreements that have an average remaining life of 13 years. These assets operate as authorizations that expire between 2039 and 2041.

Our regulated electricity transmission operations are comprised of approximately 12,000 kilometres of operating electricity transmission lines in North and South America. Our North American electricity transmission operations consist of approximately 600 kilometres of 345 kilovolt (“kV”) transmission lines in Texas. Our South American electricity transmission system is comprised of approximately 11,400 kilometres of transmission lines including approximately 35% of Chile’s high voltage transmission grid, approximately 700 kilometres of 60 kV to 220 kV transmission lines in Peru, and approximately 700 kilometres of 500 kV and 230 kV transmission lines in Brazil. During December 2017, we signed an agreement to sell our electricity transmission systems in Chile and Peru, which we expect to close during the first half of 2018, subject to the satisfaction of closing conditions.

We have already invested $50 million in greenfield transmission development in Brazil and expect to further invest $330 million. 700 kilometres of greenfield transmission have been commissioned this year, with an additional 3,500 kilometres to be commissioned over the next five years, in projects that were recently awarded to us under government auctions. These are attractive 30-year concession assets that earn inflation indexed cash flows under an availability-based regulatory framework.

(1) Approximately 10,700 kilometres of our regulated transmission operations relate to our Chilean electricity transmission operations. During December 2017 we signed an agreement to sell these systems, which we expect to close during the first half of 2018.

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Strategic Position

Our regulated transmission operations occupy key positions in the markets in which we operate. In North America, our transmission lines facilitate the delivery of wind power to population centers as part of Texas’ competitive renewable energy zone program. Our Chilean electricity transmission operations constitute the backbone of the country’s high-voltage transmission system. These operations extend from the city of Arica in the north of Chile to the island of Chiloé in the south, serving 98% of the population of the country. Our Chilean electricity transmission operations include subsidiaries in Peru that are located near Lima which is experiencing strong economic growth and demand for electricity. In Brazil, our lines under development are located in the northeast and center east including in the states of Bahia, Ceará, Rio Grande do Norte, Piauí, Paraiba and Minas Gerais. These lines will support the region’s growing demand for electricity and facilitate the delivery of power from renewable generation resources to population centers in the South. Our natural gas transmission operation in Brazil provides the backbone of Brazil’s southeast natural gas transportation system, supplying natural gas for 50% of Brazil’s demand, including Rio de Janeiro and Sao Paulo’s growing supply regions. We recently signed an agreement to sell our Chilean electricity transmission operations as part of our capital recycling plan to dispose of mature assets. The sale is subject to certain closing conditions, third party consents and regulatory approvals, and is expected to be completed in the first half of 2018.

All of our regulated transmission operations benefit from stable long-term cash flows. Our Texas operations have a broad customer base with revenues assessed on system-wide demand and collected on a state-wide basis mitigating our volume and credit risk. Currently, approximately 70% of our Chilean electricity transmission revenues are subject to the regulatory framework, whereas the remaining 30% of revenues are derived from a number of long-term transmission contracts, primarily serving hydro-electric power generators. These contracts have a pricing framework that is similar to the applicable regulatory framework (as discussed below), and following their expiration, a majority of this contracted revenue will convert to the regulatory framework. In Brazil, we earn inflation protected revenue streams on our transmission lines, with no volume risk that commence upon completion of construction under 30‑year concession agreements which expire between 2044 and 2047. Our Brazilian natural gas transmission operation has 100% of its capacity fully contracted under long-term “ship-or-pay”, inflation adjusted gas transportation agreements that have an average remaining life of 13 years.

Regulatory Environment

All of our regulated transmission operations are located in regions with stable regulatory environments. In Chile, regulated revenues are determined every four years based on a pre-tax 10% annuity real rate of return on replacement cost of the existing transmission system plus annual payments that provide for recovery of operational, maintenance and administrative costs. Between rate reviews, both revenue components are adjusted by a multi-component inflation factor. This effectively results in a 10% pre-tax, real return on our regulated asset base. Since the Chilean regulatory and contractual frameworks are based on replacement cost, our Chilean regulated transmission operations may be positioned to benefit from system-wide demand growth over time as the appreciation in the rate base can at times exceed the amount of capital needed to reinvest to sustain operations. This transmission system has no material volume risk. From 2020, regulated revenues from this business will be determined using a floating after-tax real return subject to a 7% floor which currently approximates a 9.1% pre-tax return. As noted above, we have entered into an agreement to sell our Chilean electricity transmission operations, which is expected to be completed in the first half of 2018.

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The regulatory environment in Peru is similar to Chile with revenues determined every four years based on a pre-tax 12% annuity real rate of return on replacement cost of the existing transmission system plus annual payments that provide for recovery of operational, maintenance and administrative costs. Between rate reviews, both revenue components are adjusted by a multi-component inflation factor. This effectively results in a 12% pre-tax, real return on our regulated asset base. Since the regulatory framework is based on replacement cost, we are positioned to benefit from system-wide demand growth over time as the appreciation in the rate base can at times exceed the amount of capital we need to reinvest to sustain operations. Furthermore, the regulatory framework is availability based thereby removing any volume risk in the system.

In Brazil, electricity transmission is regulated by the Brazilian Electricity Regulatory Agency (“ANEEL”). Transmission lines are auctioned by ANEEL, which grants the right to construct, maintain and operate the transmission lines under a concession agreement. Concessions are awarded for a period of 30 years based on the lowest regulated revenue (“RAP”) bid by the market. RAP is adjusted for inflation annually and updated every five years to reflect changes in third party cost of capital. The natural gas transmission industry in the country is regulated by the Brazilian National Agency of Petroleum, Natural Gas, and Biofuels (“ANP”). Each gas transportation agreement (“GTA”) took into account regulatory asset base (“RAB”) based return on investment, and the tariffs were calculated on an inflation adjusted regulatory weighted average cost of capital (“WACC”) fixed for the GTA life. Upon expiry of the authorizations, the assets shall be returned to the government and subject to concession upon public bidding.

Our Texas transmission business operates under a historical cost of services regulatory regime overseen by the Public Utility Commission of Texas. Based on a September 2015 rate case, our Texas transmission business is allowed to earn a 9.6% return on equity which is deemed to be 40% of our rate base. Our rate base is equal to the historic cost of the system’s assets plus any capital expenditures less depreciation and other deductibles. Our operating revenues do not fluctuate with usage of our system but do fluctuate based on total system peak annual electric loads, which are measured by the Electric Reliability Council of Texas, a not-for-profit corporate entity that is responsible for the day to day operation of Texas’ electrical system.

Growth Opportunities

We believe that attractive growth opportunities exist for our transmission operations.

Our electricity transmission concessions in Brazil are required for the expansion of the region’s transmission system grid to connect new electricity generation resources, including wind located in the northeast and hydro in the north to satisfy growing demand. We believe that due to the geographic location of our concessions, there are opportunities to secure system reinforcements which will generate incremental RAP as well as secure new concessions at upcoming auctions.

Generation in Texas is expected to be developed in the western area of the state which is away from population centers in the east. In addition, strong economic growth and an aging infrastructure will drive the need for further expansions and upgrades of the existing transmission system. We are favourably positioned to take advantage of these opportunities due to our geographical location in west Texas as well as our incumbent status.

Our natural gas transmission operation in Brazil is strategically located in the region where the majority of the Brazilian economic activity and pre-salt offshore oil production occurs. This will allow our operation to potentially absorb the increasing demand at natural gas-fueled thermal plants as hydro energy production normalizes and the natural gas generated from the pre-salt oil fields as their production increases.

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Regulated Distribution Operations

Our regulated distribution operations have approximately 3.3 million electricity and natural gas connections in the U.K. and Colombia. In the U.K., our operation is the leading independent “last-mile”, multi-utility connection provider, with approximately 2.8 million connections. In South America, our electricity distribution franchise area is in the Boyacá province of Colombia, a region that is approximately 150 kilometres north of the capital, Bogotá.

Strategic Position

Our regulated distribution operations are critical to the markets in which they are located. In the U.K., our system is currently a market leader in terms of new gas and electricity connection sales to the new-build housing market, and total installed connections among independent utilities. Our South American regulated distribution operations provide reliable power to approximately 470,000 customers.

Our regulated distribution operations generate stable cash flow in the geographies in which we operate. Our U.K. operation has a diverse customer base throughout England, Scotland and Wales, which underpins its cash flow. Our U.K. customers consist primarily of large energy retailers who serve residential and business users. Our South American regulated distribution operations provide power to a customer base that is primarily residential, with nearly 100% urban electrification and 92% rural electrification in the areas we service.

Regulatory Environment

Our U.K. regulated distribution operations compete with other connection providers to secure contracts to construct, own and operate connections to the home for six product lines which include: natural gas, electricity, water, wastewater, fibre, and district heating. Once connections are established, we charge retailers rates that are based on the tariff of the distribution utility with which we are interconnected. These tariffs are set on the basis of a regulated asset base. The connection rate is typically adjusted annually and provides inflation protection as it escalates at inflation minus a factor determined by the U.K. regulator. During the first 20 years after the commissioning of a connection, the gas connection rate is subject to a cap and floor that escalates by an inflation factor. Connections revenue does not vary materially with volume transported over our system.

Our South American distribution business earns an annuity return on the replacement cost of its systems plus a charge to cover operating expenses. Our rates are determined during tariff reviews which commence every five years. Our current regulated return is in excess of 13%. Between rate reviews, revenues are adjusted by an inflation factor. This effectively results in a real return on our regulated asset base in excess of 13%. Since the regulatory framework is based on replacement cost, we are positioned to capture volume growth over time as the appreciation in the rate base can at times exceed the amount of capital we need to reinvest to sustain operations. The majority of revenues earned in our South American regulated distribution business do not fluctuate with volumes.

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Growth Opportunities

We believe that our regulated distribution operations will be able to grow organically in each of the regions in which we operate. Growth in our U.K. operations are expected to benefit from (i) the progressive build out of our large existing backlog of connections, (ii) continued strong momentum in the new-build housing sector, and (iii) the establishment of new product lines such as water and district energy which will increase our bundled service offering to new and existing customers. There are additional prospects for growth with the participation in the U.K. smart meter roll out program as we adopted approximately 360,000 smart meters from U.K. energy retailers in 2017, and have the opportunity to bring the total portfolio to 3.5 million meters based on existing agreements. In South America, our regulated distribution operations have an operating license which allows us to expand vertically into the generation, transmission, and retail sectors. The business is located in a region that is home to emerging industrial industries and is experiencing strong economic growth, which will drive the need for further build-out of our distribution system and regional expansion of the transmission system. We believe we are well positioned for future growth opportunities.

Regulated Terminal Operations

Our regulated terminal operation is comprised of a port facility that exports metallurgical and thermal coal mined in the central Bowen Basin region of Queensland, Australia, which is a high quality and low cost source of predominately metallurgical coal. Our terminal is one of the world’s largest export terminals, accounting for approximately 20% of global seaborne metallurgical coal exports and 6% of total global seaborne coal exports.

The regulated terminal operation generates revenues under a regulatory regime that provides us with take-or-pay contracts. These contracts include: (i) a capacity charge that is allocated to users based on the percentage of total capacity for which they contract and (ii) a fixed and variable handling charge associated with operating and maintaining the terminal. The capacity charge is paid by users irrespective of their use of our terminal facility. The handling charge (both fixed and variable) is structured to be a complete pass through of the costs charged for terminal operations and maintenance. In the event that any user no longer requires their capacity and allows their contract to expire, the regulatory regime re-socializes this capacity amongst the other users, thereby providing protection for the full recovery of capital investments.

Strategic Position

The Bowen Basin is a high quality, low cost, prolific series of metallurgical coal deposits, where there are few cost efficient options to access export markets other than through our terminal operations. We have take-or-pay contracts with some of the world’s largest mining companies that operate in the Bowen Basin. Our regulated terminal operation is substantially contracted through 2023. Existing customers hold evergreen options to extend their capacity by a further five years and based on their past actions are expected to exercise renewal options for most of our regulated terminal operation’s contracted capacity.

Regulatory Environment

The terminal’s operation is regulated by the Queensland Competition Authority (“QCA”). The current regulatory period is set for five years ending June 30, 2021. The QCA utilizes a return on regulated asset base methodology to calculate our annual revenue with a current weighted average cost of capital allowed by the QCA of 5.82%. Our coal terminal’s regulated rate base increases each year with inflation and capital expenditures and decreases by depreciation.

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Growth Opportunities

Over the past 30 years, our terminal’s capacity has been expanded from 15 mtpa to 85 mtpa to meet ongoing customer demand. Potential exists to further grow our operations to facilitate future mine expansions in the Bowen Basin. Our coal terminal has completed feasibility studies which show the viability of further expansions within the terminal precinct which could take capacity in excess of 100 mtpa.

Transport

Overview

Our transport segment is comprised of open access systems that provide transportation, storage and handling services for freight, bulk commodities and passengers, for which we are paid an access fee or for services provided. Profitability is based on the volume and price achieved for the provision of these services. This operating segment is comprised of businesses with price ceilings as a result of regulation, such as our rail and toll road operations, as well as unregulated businesses, such as our ports. Transport businesses typically have high barriers to entry and, in many instances, have very few substitutes in their local markets. While these businesses have greater sensitivity to market prices and volume than our utilities segment, revenues are generally stable and, in many cases, are supported by contracts or customer relationships. The diversification within our transport segment mitigates the impact of fluctuations in demand from any particular sector, commodity or customer. Approximately 85% of our transport segment’s Adjusted EBITDA is supported by contractual or regulated revenues.

Our objectives for our transport segment are to provide safe and reliable service to our customers and to satisfy their growth requirements by increasing the utilization of our assets and expanding our capacity in a capital efficient manner. If we do so, we will be able to charge an appropriate price for our services and earn an attractive return on the capital deployed. Our performance can be measured by our revenue growth and our Adjusted EBITDA margin.

Our transport segment is comprised of the following:

Rail

• Sole provider of rail network in southern half of Western Australia with approximately 5,500 kilometres of track and operator of approximately 4,800 kilometres of rail in South America

Toll Roads

• Approximately 4,000 kilometres of motorways in Brazil, Chile, Peru and India

Ports

• 37 terminals in North America, U.K., Australia and across Europe

Rail

Our Australian rail network is comprised of over 5,500 kilometres of below rail track and related infrastructure in the southern half of Western Australia under a long-term lease with the State Government. There are approximately 32 years remaining on this lease and this rail system is a crucial transport link in the region. Our Australian rail operation’s revenue is derived from access charges paid by underlying customers, either directly or via the above rail operators. Stability of revenue is underpinned by rail transport being a relatively small yet essential component of the overall value of the commodities and freight transported, as well as the strong contractual framework that exists with underlying customers or the above rail operators.

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Our Brazilian rail operations are part of an integrated system with transshipment terminals, rail, port terminal operations, and over 25,000 locomotives and wagons. They provide below and above rail services for approximately 4,800 kilometres of track. Our Brazil rail operates under a regulatory framework that establishes productivity standards, volume goals and price caps. There are approximately nine years (with an option to renew for 30 years) and 20 years, respectively, remaining on the two rail concession agreements with the local government. Additional revenue is earned by offering complementary services including inland transshipment terminals and port services, which for the most part, are not subject to any tariff regimes.

Strategic Position

Our Australian rail network is the only freight rail network providing access to the region’s six State Government-owned ports for minerals and grain, as well as interstate intermodal terminals connecting Western Australia with national and global markets. The majority of our customers are leading commodity exporters with the top 10 customers contributing approximately 93% of revenue, through long dated track access contracts.

Our Brazilian rail operations span nine states and operate in three main corridors serving Brazil’s center-north, center-east and center-southeast regions, including the most important agricultural and industrial regions in the country. Main sources of revenue are derived from grains, sugar, fertilizer, industrial and steel sectors and are generated from a diversified customer base.

Regulatory Environment

In Western Australia, the Economic Regulatory Authority (“ERA”) is the independent economic regulator, responsible for the gas, electricity, water and rail industries. For the rail industry, an access regime exists with the ERA determining the revenue ceiling and floor boundaries by track segment for parties to negotiate within. These boundaries are established using a methodology based on a regulated rate of return on asset replacement value. Across the majority of the network, current revenue is well below the regulated ceiling. As a result, no contracted revenue is currently exposed to reduction under this access regime. Our Australian rail network operates its track on an open access basis consistent with the rail access regime and its lease obligations.

Our Brazilian rail concessions are governed by Brazil’s transportation regulator, Agência Nacional de Transportes Terrestres (“ANTT”), which is also responsible for the tariff regime in that country. In addition, we access rail networks controlled by Vale S.A., Brazil’s largest mining company, and other major Brazilian rail players, in arrangements governed by long-term agreements. The regulatory regime requires concession holders to provide open access to all track users. Since most of our port operations are privately held, they are not subject to regulated tariffs and are able to move third party cargo with no regulatory pricing limitations.

Growth Opportunities

Our Australian rail operation is a critical component of the logistics chain in its region and is the backbone of freight transport in Western Australia. In many cases, it is the only mode of transportation for freight that is economically viable. As a result, the business is well positioned to benefit from the economic growth of the region and also to benefit through the development of new agriculture or mining projects, which would require access to the rail network to facilitate export.

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Our Brazilian rail business is undergoing an approximately R$4 billion capital investment program to upgrade and expand our integrated network. The expansion should allow it to capture volume growth by attracting cargo volumes that currently are transported by more expensive alternatives such as trucks. This business is focused on improving network connectivity in the system by capturing the growing demand for integrated transportation services in Brazil. In addition, over R$2 billion has been invested in a port terminal expansion project located at Latin America’s largest port. The project has added three berths to handle over 14 mtpa of grain and sugar exports and fertilizer imports, which will significantly benefit our rail operation by increasing volumes and improving our strategic position as an integrated logistics provider. Future projects include the purchase of locomotives and wagons, and improvements to rail infrastructure including inland terminals, railway and yards.

Toll Roads

Our toll road operations are comprised of urban and interurban toll roads in Chile, Brazil, Peru and India. Our Chilean operations include 33 kilometres of free flowing roads that form a key part of the ring road network of Santiago. Our Brazilian operations comprise of approximately 3,650 kilometres of inter-urban toll roads, located in the Southeast and South regions of Brazil crossing or connecting the states of São Paulo, Rio de Janeiro, Minas Gerais, Espírito Santo, Parana and Santa Catarina. Our Peruvian operations consist of 96 kilometres of existing roads and the greenfield construction of 19 kilometres of new roads, which together form three segments that are key transportation arteries in Lima. Our Indian operations include approximately 240 kilometres of existing roads which form part of India’s most important national highways. Our toll road portfolio operates under long-term concessions with staggered maturities and an average remaining term of approximately 15 years.

Our toll roads are expected to generate stable, growing cash flows as a result of their strategic locations, favourable long-term economic trends in the countries we operate in and inflation-linked tariffs. These markets have all experienced significant economic growth over the last 20 years, leading to increased motorization rates and trade, which have driven increases in traffic volumes. We expect these trends to continue in the long-term, resulting in significant future traffic growth on our roads.

Strategic Position

Our Chilean toll road is a key artery in Santiago’s urban road network as it connects the affluent business center of east Santiago with Chile’s international airport, the Ports of Valparaiso and San Antonio, and the north of Chile. The primary users of the road are commuters getting to and from work. Conversely, our Brazilian toll roads are part of the inter-urban Brazilian toll road network, whose traffic is a mix of heavy industrial users and cars. Our roads are used in the transportation of goods in states of Brazil, which represent approximately 65% of Brazilian GDP. Our Peruvian toll roads are key arteries within Lima’s road network that connect 23 districts and serve as the main access to the city from the north, south and east regions. Our Indian toll roads span the country and include some of India’s most important national highways.

Our toll roads are critical infrastructure for the economies of Chile, Brazil, Peru and India, with few viable alternative routes available. Building new competing routes would be limited by environmental restrictions, difficulty to expropriate urban land and physical restrictions.

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Regulatory Environment

Our Chilean assets are governed by the Ministerio de Obras Publicas (“MOP”). Chile has an established concession program which has been in place for more than 20 years. To date, 82 concession agreements have been awarded, of which 65 concessions are active, representing a total investment of approximately $21 billion within the country. Specifically, the ministerial regime for urban toll roads allows operators to raise tariffs annually at a level equal to inflation + 3.5% with additional increases in the form of congestion premiums which can be up to three times the base tariff during periods.

Our Brazilian assets are governed by Agência Reguladora de Serviços Públicos Delegados de Transporte do Estado de São Paulo (“ARTESP”) and ANTT, the São Paulo State and Federal regulators, respectively. The country has a widely developed toll road program, both at the Federal and State level, which has been in place for approximately 16 years. As of 2017, there were 59 motorway concessions in Brazil totaling over 19,000 kilometres. Brazilian concession agreements provide operators with annual tariff increases indexed to inflation and additional investments not considered in the initial concession agreements are compensated with real tariff increases or an extension of the concession period.

The concession for our Peruvian toll roads was granted by the Municipalidad Metropolitana de Lima (“MML”) and is supervised by MML’s municipal arm, Gerencia de Promoción de la Inversión Privada (“GPIP”), through Fondo Metropolitano de Inversiones (“Invermet”). Invermet is responsible for overseeing maintenance, conservation, and construction activities. The concession agreement includes tariff increases in excess of inflation until the end of 2018, at which point tariffs will be linked to inflation.

Our Indian assets are governed by the National Highways Authority of India, which has been operational for over 20 years and has responsibility to develop, maintain and manage the national highways vested or entrusted to it by the Central Government of India. Revenues at four of the five toll roads are derived from annuity concession payments, while the other earns revenue from traffic linked toll road tariffs. The annuity concession payments provide stable and predictable cash flows from a government related entity while the toll road tariffs are linked to inflation which is expected to benefit from India’s growing economy.

Growth Opportunities

We believe that long-term growth in the South American and Indian economies will trigger increases in traffic volumes. Coupled with tariff increases from inflation and congestion tariffs, this should drive significant future cash flow growth for our toll road businesses. In addition, Brazil, Chile and Peru are seeking to expand our respective paved road network by improving existing roads and developing new roads as opportunities for new and expiring concessions become available. These planned expansions should present opportunities for us to invest additional capital in these attractive markets, given the scale of our existing network.

Ports

Our port operations are located primarily in U.K., Australia, North America, and across Europe. Our U.K. port is one of the largest operators in the country by volume and is a statutory harbor authority (“SHA”) for the Port of Tees and Hartlepool in the north of the U.K. Our U.K. port’s status as the SHA gives it the right to charge vessel and cargo owners conservancy tariffs (toll-like dues) for use of the River Tees. At our U.K. port, our revenue is primarily generated from port handling services for bulk and container volumes. In addition, approximately 25% of our revenue is earned from conservancy and pilotage tariffs. Furthermore, we have a freehold land base of approximately 2,000 acres that is strategically located in close proximity to our port, which generates income from long-term property leases that account for approximately 10% of our revenue.

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Our Australian operations include gateway container terminals in Australia’s four largest container ports, a regional city port, and storage, handling and logistics operations at over 60 locations throughout Australia and New Zealand. The container terminal operations handled approximately 3 million Twenty-Foot Equivalent Units (“TEUs”) in 2017, with the storage, handling and logistics businesses handling over 22.3 million tonnes of bulk and general cargo, 12.1 million tonnes of forestry products and over 600,000 vehicles per annum.

Our North American port operation is comprised of gateway container terminals in the ports of Los Angeles and Oakland, which operate under long-term leases with the Los Angeles and Oakland port authorities. These terminals handled approximately 1.2 million TEUs in 2017. In North America, our revenue is generated from port handling services for container volumes. A portion of our volumes are underpinned by a long-term minimum volume guarantee arrangement provided by our partner in this business, Mitsui O.S.K. Lines, Ltd.

Our European port operations are comprised of a portfolio of concessions in key strategic locations throughout Europe and China that handle bulk, breakbulk, liquid, and containerized goods across multiple industries. Our European port operations handle approximately 48 mtpa of cargo at 23 port terminals located throughout seven European countries. The portfolio has a long-term concession profile with an established track record of concession extensions.

Strategic Position

Our port operations are strategically located. In the U.K., Teesport is a large, deep-water port located in a well-developed industrial area in Northern England. The SHA status, as well as the established infrastructure which includes rail and road access, create barriers to entry for potential competitors.

Our Australian container port terminals operate under long-term leases, with over 175 hectares of land within the ports of Melbourne, Sydney, Brisbane and Fremantle, the four largest container ports by TEU in Australia. Our storage, handling and logistics business benefits from diversification both geographically, with operations at over 60 sites across Australia and New Zealand, and by goods and services, handling bulk and general cargo, forestry products and vehicles for a diversified customer base.

Our North American port operations are located in the ports of Los Angeles and Oakland, the largest and fifth largest ports in North America, respectively. These deep-water ports are in close proximity to irreplaceable, land-side infrastructure for intermodal and transloading services and are capable of handling the largest vessels currently in service.

Our European port operations are located in 24 port terminals across continental Europe and 3 in China,and consist of over 700 hectares of long-term port concessions and over 30 kilometres of quay length. With substantial infrastructure that is often integrated with our customers’ facilities, including cranes, berths, warehouses, inloading and outloading equipment, our European port operations are protected by significant barriers to entry. Additionally, our operations provide logistical services for our customers that would be difficult for potential competitors to replicate.

Our U.K., Australian and North American port operations have a number of long-term contracts with established parties, including large multinational corporations. The majority of our revenues are derived from customers with significant investment in industrial infrastructure at or within close proximity to these ports. Our Australian port operations’ main customers represent major shipping lines who utilize the multiple ports located nationally. Our North American port operations serve major international shipping lines, many of which work collaboratively as part of a global shipping alliance. Our European port operations mainly serve industrial customers in the immediate vicinity of our terminals under varied contract terms. Many key customers have been long-term customers continuously for between 10 and 30 years.

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Regulatory Environment

Our U.K. port is unregulated, but its status as the SHA for the River Tees provides the statutory right to collect conservancy tariffs (toll-like dues) payable by ships using the river and the requirement to maintain navigability of the waterway. The port has the statutory authority to set tariffs which are determined through consultation with users of the river and indexed to inflation. Our North American, European and Australian port operations conduct business in an unregulated environment.

Growth Opportunities

Our U.K. port’s flexible, multi-purpose capacity positions it to benefit from numerous growth initiatives. The ongoing expansion of our container handling facilities, in addition to improvements in our rail capacity, have driven new customer contracts for container cargo and positioned our U.K. port to be the main entry point for container cargo destined for the northern England market. Similarly, our sizeable freehold land base, strategic location and extensive port infrastructure, has enabled us to attract new energy-related customers, which are investing significant capital to build new plant and equipment on our land. As these new investments are commissioned, our U.K. port will benefit from increased property rental income, cargo handling revenue and conservancy fees.

Our North American port operations continue to progress a significant modernization project in Los Angeles that is expected to approximately double capacity and increase efficiency. Once complete, this project will make our terminal in Los Angeles one of the lowest cost and most automated terminals in North America with surplus capacity to facilitate future volume growth. Our terminal in Oakland is also undergoing an expansion of its facilities, which will almost double its capacity and significantly enhance its ability to service incremental demand.

In Australia and Europe, our port operations are well positioned to capitalize on increasing demand for bulk and general commodities as well as cross-selling opportunities with existing customers.

Energy

Overview

Our energy segment is comprised of systems that provide transportation, storage and distribution services. Profitability is based on the volume and price achieved for the provision of these services. This operating segment is comprised of businesses that are subject to regulation, such as our natural gas transmission business whose services are subject to price ceilings, and businesses that are essentially unregulated like our district energy business. Energy businesses typically have high barriers to entry as a result of significant fixed costs combined with economies of scale or unique positions in their local markets. Our energy segment is expected to benefit from forecasted increases in demand for energy. Although these businesses have greater sensitivity to market prices and volume than our utilities segment, revenues are typically contracted with varying durations and are relatively stable.

Our objectives for our energy segment are to provide safe and reliable service to our customers and to satisfy their growth requirements by increasing the utilization of our assets and expanding our capacity in a capital efficient manner. If we do so, we will be able to charge an appropriate price for our services and earn an attractive return on the capital deployed. Our performance can be measured by our revenue growth, our Adjusted EBITDA margin and our growth in AFFO.

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Our energy segment is comprised of the following:

Transmission, Distribution and Storage Operations

• Approximately 15,000 kilometres of natural gas transmission pipelines

• Approximately 600 billion cubic feet (“bcf”) of natural gas storage in the U.S. and Canada

District Energy Operations

• Delivers heating and cooling to customers from centralized systems including heating plants capable of delivering 3,185,000 pounds per hour of steam heating capacity, centralized gas distribution and cogeneration for heating, cooling and energy, 315,000 tons of contracted cooling capacity, as well as servicing approximately 18,700 natural gas, water and wastewater connections

Transmission and Storage Operations

Our transmission and storage operations include approximately 15,000 kilometres of natural gas transmission and pipeline systems in the U.S. and significant natural gas storage capacity in the U.S. and Canada.

Our natural gas transmission pipelines comprise one of the largest systems in the U.S., extending from the Gulf Coast in Texas and Oklahoma to Chicago. The majority of revenues are generated under contracts and are well positioned to benefit from forecasted increases in demand for clean energy.

Our natural gas storage facilities are needed to reallocate excess natural gas supply from periods of low demand to periods of high demand. Our assets are located in key North American natural gas producing and consuming regions providing access to multiple end-use markets.

Strategic Position

Our North American natural gas transmission system is one of the largest and most geographically extensive natural gas pipeline systems in North America. It is the largest provider of natural gas transmission to the Chicago and northern Indiana markets and has significant interconnectivity with local distribution companies, natural gas liquefaction facilities, industrial users and gas-fired power plants. The system is also well connected to other pipelines accessing additional downstream markets, which increases demand for our transportation and storage services.

We operate or contract for more than 600 bcf of working gas capacity at our natural gas storage facilities. We have sixteen facilities that are connected at strategic points on the North American natural gas transmission network and provide access to multiple end-use markets and provide us and our customers with substantial liquidity to buy and sell natural gas. Our facilities are located in the U.S. and Canada.

Regulatory Environment

Our transmission and storage operations are subject to varied regulation that differs across our regions of operation. Our North American natural gas transmission system, including its storage operations, and our natural gas storage facility in Texas are regulated by FERC under the Natural Gas Act of 1938. FERC provides a regulated framework for shippers and natural gas pipeline owners to reach commercial agreement with customers without regulatory intervention under a maximum rate regime, and there is no periodic rate case obligation.

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Our Canadian natural gas storage facilities are regulated by the Alberta Energy and Resources Conservation Board, which provides operational and environmental oversight. Our Californian natural gas storage facilities are subject to California Public Utilities Commission oversight. Our Oklahoma facility is regulated by the Oklahoma Corporation Commission. These facilities are not subject to any economic regulation.

Growth Opportunities

Within our North American natural gas transmission operations we are progressing a number of organic growth opportunities that will expand our service offerings through capital projects supported by long-term contracts. Growth projects underway include a large-scale expansion to provide additional deliverability to the Gulf Coast market, which is expected to be completed in late 2018.

Our natural gas transmission operations and natural gas storage facilities are well positioned to benefit from changing supply and demand dynamics in the North American natural gas market. We believe that there will be further opportunities to deploy capital at attractive risk-adjusted returns.

District Energy

Our North American district energy operations are located in eleven cities and consist of heating plants capable of delivering 3,185,000 pounds per hour of steam heating capacity, produced from nine gas-fired steam plants and 315,000 tons of contracted cooling capacity, sourced from deep lake water systems and a variety of other cooling technologies. These operations provide steam heating in key markets such as downtown Toronto, Ontario, in the medical district of New Orleans, Louisiana and in the central business district of Seattle, Washington. District cooling services are provided through an innovative deep lake cooling system in Toronto and from more conventional cooling technologies in key markets such as Chicago, Illinois, Los Angeles, California, Houston, Texas, Las Vegas, Nevada and New Orleans.

Our Australian district energy operations provide heating, cooling and energy solutions and distributed natural gas, water and wastewater services, in the states of Tasmania, New South Wales, Queensland and Victoria. The natural gas network includes over 800 kilometres of pipeline, bringing approximately 100 million cubic meters of natural gas to homes and businesses each year, with availability to provide this service to approximately 59,000 commercial and residential customers.

Strategic Position

Our district energy business in North America provides essential heating and cooling services to approximately 700 commercial customers, governments, hospitals and sporting arenas in major North American cities, including Toronto, Los Angeles, Las Vegas, Houston, New Orleans, Chicago and Seattle. Our Australian district energy business is comprised of an established natural gas distribution and retail business, supplying approximately 13,800 residential, commercial and industrial customers currently connected to our network in Tasmania and Victoria. We are also operating and developing projects to supply energy solutions, as well as water and wastewater services, to approximately 4,900 residential and commercial customers. In most cases our district energy businesses offer the only feasible source of energy and water services to those customers who are connected to our network. In addition, we are able to realize synergies across this segment through the sharing of best practices for customer contracting and due diligence, and financing strategies.

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Regulatory Environment

Our district energy business in Toronto is governed by the Ontario Public Utilities Act of 1913 and Toronto District Heating Corporation Act, 1998. However, the business is not subject to rate regulation but receives the rights of a utility in Ontario, allowing it unrestricted access to its network of underground pipes in downtown Toronto. In other North American markets, our operations are enabled by long term franchise agreements with the respective municipalities. Our district energy business in Australia is currently not subject to any economic regulation.

Growth Opportunities

We have significant organic growth opportunities in our various district energy businesses, primarily through system expansions in North America. Our North American business has more than doubled its sales pipeline within the last year, reflecting increasing district energy demand in urban regions, and a recognition that these systems can help customers achieve their long-term energy objectives. The district energy industry in North America is highly fragmented, providing significant opportunities to grow our business through acquisitions. We closed two tuck-in acquisitions during 2017, expanding our presence in Los Angeles, Las Vegas, Portland, Oregon, London, Ontario, and Charlottetown, Prince Edward Island. The Australian district energy business is developing into a multi-asset energy and water provider, offering combined services for heating, cooling and energy as well as water and wastewater services.

There are significant barriers to entry in these businesses, as there are limited opportunities for customers to support competing businesses once connected to our systems. Once a system is established, we are well positioned to capture further organic growth opportunities.

Communications Infrastructure

Overview

Our communications infrastructure segment provides essential services and critical infrastructure to the media broadcasting and telecom sectors. These services and access to infrastructure are contracted on a long-term basis with tariff escalation mechanisms. Our telecommunications business can be divided into two segments: (i) telecom site hosting and (ii) wholesale fibre-to-the-home (“FTTH”) networks. In both segments, our customers pay upfront and/or recurring fees to lease space on our towers to host their equipment or lease capacity on our fibre network to deliver ultra-fast broadband solutions to customers. Our broadcasting customers pay us fees for transmitting television and radio content to end users.

The key objective for this segment is to capture the benefit associated with increased demand for densification from mobile network operators and to acquire towers and other infrastructure that are non-core to such operators. Our performance can be measured by the growth in our Adjusted EBITDA.

The segment is comprised of approximately 7,000 multi-purpose towers and active rooftop sites and 5,000 kilometres of fibre backbone located in France.

These operations generate stable, inflation-linked cash flows underpinned by long-term contracts (typically 10 years in telecommunications and five years in broadcasting) with large, prominent customers in France.

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Strategic Position

Our business is the leading independent communications infrastructure operator in France. Its sites cover the entire French territory, with some in the very best locations. Our coverage and location enable us to be a leader across all of the segments in which we operate. Its scale in telecommunications sites makes it the number one independent tower operator in France and a preferred partner of mobile network operators. In television, it provides coverage to 97% of the French population, one of Europe’s largest television markets. In radio, we are the reference provider for services in France with approximately 55% share of FM analog radio frequencies. Our business has been participating in the French government-led initiative to provide lower population density areas in France with access to ultra-fast broadband through the deployment of FTTH networks. These investments in FTTH networks present a unique opportunity for our business to leverage its existing assets and technical expertise operating a high-speed fibre backbone. Thus far, we have secured three tenders to roll out FTTH networks to over 720,000 households and businesses across France.

Regulatory Environment

In the television business, a small proportion of the sites (currently approximately 70) are considered to be non-replicable because either (i) they benefit from a remarkable location, often on an elevated point or area where the construction of a second tower is in practice very complex, (ii) equipment attachment height is greater than 100 meters or (iii) a set of exceptional circumstances prevent the site from being replicated. On these sites the regulator considers the business to have significant market power and as a result regulates the prices that can be charged. In total these regulated revenues account for approximately 40% of our television broadcast revenues. On the residual television sites, deemed replicable, access prices are subject to a price floor and cap established by the regulator. Our telecommunications site hosting operations are unregulated with pricing determined directly with the users of our tower infrastructure. Our FTTH networks have been granted under either 25-year concessions or perpetual ownership frameworks, with the former benefiting from government subsidies. These networks are operated on a wholesale and open-access basis to help ensure commercialization by all the internet service providers. Pricing is based on tariff guidelines published by the regulator which sets a price floor.

Growth Opportunities

We see growth opportunities in the telecom infrastructure segment as mobile network operators are expected to increase the coverage and capacity of their networks to support four main trends: (i) growing wireless data usage, (ii) next evolution of wireless standards, (iii) increased mobile network operator competition through network quality and reliability, and (iv) minimum spectrum license coverage obligations. We believe that the size and scope of our portfolio positions us to take advantage of these favourable trends through construction and acquisition of additional assets. With regards to fibre, our existing tenders will be rolled out over the next three to five years. We will continue to pursue, on a selective and measured basis, both new tenders from municipalities and potential partnerships with large service providers to build out and operate segments of their network to achieve attractive risk-adjusted returns.

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Acquisition Strategy

Over the past few years, we have established operating segments with scale in the utilities, transport, energy and communications infrastructure sectors. As we look to grow our businesses, we will primarily target acquisitions that utilize existing operating segments to acquire high quality assets that we can actively manage to achieve a total return of 12 to 15% per annum, and extend our operations into new geographies in which Brookfield has a presence. We intend to utilize existing liquidity and capital recycling program to fund acquisitions and prudently access capital markets. As we grow our asset base, we will primarily target acquisitions in the following infrastructure sectors:

• Utilities: regulated electricity and gas transmission, regulated electricity, gas and water distribution and regulated or contracted terminal operations;

• Transport: railroads, ports, toll roads and airports;

• Energy: oil and gas pipelines and gathering and storage systems and district energy systems; and

• Communications infrastructure: telecommunications towers and data infrastructure.

An integral part of our acquisition strategy is to participate with institutional investors in Brookfield-sponsored consortiums for single asset acquisitions and as a partner in or alongside Brookfield-sponsored partnerships that target acquisitions that suit our profile. We will focus on consortiums and partnerships where Brookfield has sufficient influence or control to deploy our operations oriented approach. Brookfield has a strong track record of leading such transactions.

Brookfield has agreed that it will not sponsor transactions that are suitable for us in the infrastructure sector unless we are given an opportunity to participate. See Item 7.B “Related Party Transactions—Relationship Agreement”. Since Brookfield has large, well-established operations in real estate and renewable power that are separate from us, Brookfield will not be obligated to provide us with any opportunities in these sectors. In addition, since Brookfield has granted an affiliate the right to act as the exclusive vehicle for Brookfield’s timberland acquisitions in Eastern Canada and the Northeastern U.S., we will not be entitled to participate in timberland acquisitions in those geographic regions.

Capital Recycling Strategy

One of the key sources of capital in our partnership’s overall funding plan are proceeds from the disposition of mature assets. We believe that the re-investment of proceeds from the sale of mature, de-risked businesses into higher yielding investment strategies is one of the best ways to enhance returns for unitholders. Capital recycling also provides an alternate form of funding, that supplements capital raises in the public debt and equity markets. Our partnership has established a strong track record of recycling capital through the sale of 10 businesses since inception. These sales have generated over $3.0 billion of total proceeds which represents, on average, a 30% premium to our partnership’s previously recorded carrying value. Our partnership is focused on executing the next phase of our capital recycling program. With the maturing profile of a number of our businesses, proceeds from asset sales are expected to remain a key part of our overall funding plan. Further adding to our track record, in December 2017, we signed a purchase and sale agreement for the disposition of our Chilean electricity transmission business for proceeds of total $1.3 billion which represents a 40% premium to previous book value.  Completion of this transaction is subject to certain closing conditions, third party consents and regulatory approvals which could be completed in the first half of 2018.      

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Intellectual Property

Our partnership, as licensee, has entered into a Licensing Agreement with Brookfield pursuant to which Brookfield has granted us a non-exclusive, royalty-free license to use the name “Brookfield” and the Brookfield logo in connection with marketing activities. Other than under this limited license, we do not have a legal right to the “Brookfield” name or the Brookfield logo. Brookfield may terminate our Licensing Agreement immediately upon termination of our Master Services Agreement and it may be terminated in the circumstances described under Item 7.B “Related Party Transactions—Licensing Agreements.”

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4.C    ORGANIZATIONAL STRUCTURE

Organizational Charts

The chart below presents a summary of our ownership and organizational structure. Please note that on this chart all interests are 100% unless otherwise indicated and “GP Interest” denotes a general partnership interest and “LP Interest” denotes a limited partnership interest. These charts should be read in conjunction with the explanation of our ownership and organizational structure below and the information included under Item 4.B “Business Overview,” Item 6.C “Board Practices” and Item 7.B “Related Party

Transactions.”

(1) Brookfield’s general partner interest is held through Brookfield Infrastructure Partners Limited, a Bermuda company that is indirectly wholly-owned by Brookfield Asset Management, an Ontario corporation.

(2) Brookfield’s limited partnership interest in the Holding LP, held in Redeemable Partnership Units, is redeemable for cash or exchangeable for our units in accordance with the Redemption-Exchange Mechanism, which could result in Brookfield eventually owning approximately 29.6% of our partnership’s issued and outstanding units on a fully exchanged basis (including the issued and outstanding units that Brookfield currently also owns). See Item 10.B “Memorandum and Articles of Association—Description of the Holding LP’s Limited Partnership Agreement—Redemption—Exchange Mechanism.”

(3) Brookfield has provided an aggregate of $20 million of working capital to certain Holding Entities through a subscription for preferred shares. See Item 4.C “Organizational Structure—The Holding LP and Holding Entities”.

(4) The Service Provider provides services to the Service Recipients pursuant to the Master Services Agreement.

(5) On March 12, 2015, our partnership issued five million Series 1 Preferred Units to the public and acquired five million Holding LP Series 1 Preferred Units. On December 8, 2015, our partnership issued five million Series 3 Preferred Units to the public and acquired five million Holding LP Series 3 Preferred Units. On August 2, 2016, our partnership issued ten million Series 5 Preferred Units to the public and acquired ten million Holding LP Series 5 Preferred Units. On January 19, 2017, our partnership issued twelve million Series 7 Preferred Units to the public and acquired twelve million Holding LP Series 7 Preferred Units. On January 23, 2018, our partnership issued 8 million Series 9 Preferred Units to the public and acquired 8 million Holding LP Series 9 Preferred Units.

(6) As of December 31, 2017, our partnership had outstanding 276,572,900 units. An equal number of Managing General Partner Units are held by our partnership in the Holding LP.

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Our Partnership

We own and operate high quality, long-life assets that generate stable cash flows, require relatively minimal maintenance capital expenditures and, by virtue of barriers to entry and other characteristics, tend to appreciate in value over time.

Our partnership is a Bermudian exempted limited partnership that was established on May 21, 2007 and spun off from Brookfield on January 31, 2008. See Item 4.D “Property, Plant and Equipment” for information regarding our partnership’s head office.

Our partnership’s sole material asset is its managing general partnership interest and preferred limited partnership interest in the Holding LP. Our partnership serves as the Holding LP’s managing general partner and has sole authority for the management and control of the Holding LP. Our partnership anticipates that the only distributions that it will receive in respect of our partnership’s managing general partnership interest and preferred limited partnership interest in the Holding LP will consist of amounts that are intended to assist our partnership in making distributions to our unitholders in accordance with our partnership’s distribution policy, to our preferred unitholders in accordance with the terms of our preferred units and to allow our partnership to pay expenses as they become due. The declaration and payment of cash distributions by our partnership is at the discretion of our General Partner. Our partnership is not required to make such distributions and neither our partnership nor our General Partner can assure you that our partnership will make such distributions as intended.

Brookfield and the Service Provider

Brookfield has an approximate 29.6% interest in our partnership on a fully exchanged basis. Our partnership and the other Service Recipients have each appointed affiliates of Brookfield Asset Management as their Service Provider to provide certain management, administrative and advisory services, for a fee, under the Master Services Agreement.

Brookfield is a global asset management company focused on property, renewable energy, infrastructure and private equity assets with approximately $285 billion of assets under management, 80,000 operating employees and 750 investment professionals worldwide. Brookfield’s strategy is to combine best-in-class operating segments and transaction execution capabilities to acquire and invest in targeted assets and actively manage them in order to achieve superior returns on a long-term basis.

To execute our vision of being a leading owner and operator of high quality infrastructure assets that produce an attractive risk-adjusted total return for our unitholders, we will seek to leverage our relationship with Brookfield and in particular, its operations-oriented approach, which is comprised of the following attributes:

• strong business development capabilities, which benefit from deep relationships within, and in-depth knowledge of, its target markets;

• technical knowledge and industry insight used in the evaluation, execution, risk management and financing of development projects and acquisitions;

• project development capabilities, with expertise in negotiating commercial arrangements (including offtake arrangements and engineering, procurement and construction contracts), obtaining required permits and managing construction of network upgrades and expansions, as well as greenfield projects;

• operational expertise, with considerable experience optimizing sales of its products and structuring and executing contracts with end users to enhance the value of its assets; and

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• development and retention of the highest quality people in its operations.

Our partnership does not employ any of the individuals who carry out the current management of our partnership. The personnel that carry out these activities are employees of Brookfield, and their services are provided to our partnership or for our benefit under the Master Services Agreement. For a discussion of the individuals from Brookfield’s management team that are expected to be involved in our infrastructure business, see Item 6.A “Directors and Senior Management—Our Management.”

Our General Partner

Our General Partner serves as our partnership’s general partner and has sole authority for the management and control of our partnership, which is exercised exclusively by its board of directors in Bermuda. Our partnership’s managing general partnership interest in the Holding LP, which consists of Managing General Partner Units, entitles our partnership to serve as the Holding LP’s managing general partner, with sole authority for management and control of the Holding LP, which is exercised exclusively through the board of directors of our General Partner.

See also the information contained in this annual report on Form 20-F under Item 3.D “Risk Factors—Risks Relating to Our Partnership Structure,” Item 3.D “Risk Factors—Risks Relating to our Relationship with Brookfield,” Item 6.A “Directors and Senior Management,” Item 7.B “Related Party Transactions,” Item 10.B “Memorandum and Articles of Association—Description of Our Units, Preferred Units and Our Limited Partnership,” Item 10.B “Memorandum and Articles of Association—Description of the Holding LP’s Limited Partnership Agreement” and Item 7.A “Major Shareholders.”

The Holding LP and Holding Entities

Our partnership indirectly holds its interests in operating entities through the Holding LP and the Holding Entities. The Holding LP owns all of the common shares of the Holding Entities. Brookfield has provided an aggregate of $20 million of working capital to certain Holding Entities through a subscription for preferred shares of such Holding Entities. These preferred shares are entitled to receive a cumulative preferential dividend equal to 6% of their redemption value as and when declared by the board of directors of the applicable Holding Entity and are redeemable at the option of the Holding Entity, subject to certain limitations, at any time after the tenth anniversary of their issuance. Except for the preferred share of our primary U.S. Holding Entity, which is entitled to one vote, the preferred shares are not entitled to vote, except as required by law.

Infrastructure Special LP

The Infrastructure Special LP is entitled to receive incentive distributions from the Holding LP as a result of its ownership of Special General Partner Units of the Holding LP. See Item 7.B “Related Party Transactions—Incentive Distributions.”

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Significant Subsidiaries

The following table sets forth for each of our partnership’s significant subsidiaries, the jurisdiction of incorporation and the percentage ownership held by our partnership.

			Ownership Interest	Voting Interest
Defined Name	Name of entity	Jurisdiction of Organization	2017	2017
			%	%
Holding LP	Brookfield Infrastructure L.P.	Bermuda	70(1)	100
Australian rail operation	Arc Infrastructure Holdings No. 1 Pty Ltd	Australia	100(2)	100
Regulated terminal operations	DBCT Management Pty Ltd	Australia	71(2)	100
U.K. regulated distribution operations	Brookfield Utilities UK Holdings Limited	United Kingdom	80(2)	80
Brazilian natural gas transmission operation	Nova Transportadora do Sudeste S.A.	Brazil	28(2)	90

(1) Ownership interest held directly by our partnership.

(2) Ownership interest held indirectly by the Holding LP.

4.D   PROPERTY, PLANT AND EQUIPMENT

Our partnership’s principal office and its registered office is at 73 Front Street, Hamilton HM 12, Bermuda, and is subject to a lease expiring on December 31, 2018. We do not directly own any real property.

See also the information contained in this annual report on Form 20-F under Item 3.D “Risk Factors—Risks Relating to Our Operations and the Infrastructure Industry—All of our infrastructure operations may require substantial capital expenditures in the future,” “—Investments in infrastructure projects prior to or during a construction or expansion phase are likely to be subject to increased risk,” “—All of our operating entities are subject to changes in government policy and legislation,”, Item 5 “Operating and Financial Review and Prospects—Management’s Discussion and Analysis of Financial Condition and Results of Operations” and Item 18 “Financial Statements” regarding information on Property, Plant and Equipment on a consolidated basis.

ITEM 4A.    UNRESOLVED STAFF COMMENTS

Not applicable.

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ITEM 5.    OPERATING AND FINANCIAL REVIEW AND PROSPECTS

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS (“MD&A”)

Performance Targets and Key Measures

We target a total return of 12% to 15% per annum on the infrastructure assets that we own, measured over the long term. We intend to generate this return from the in-place cash flows from our operations plus growth through investments in upgrades and expansions of our asset base, as well as acquisitions. We determine our distributions to unitholders based primarily on an assessment of our operating performance. FFO is used to assess our operating performance and can be used on a per unit basis as a proxy for future distribution growth over the long-term. In addition, we have performance measures that track the key value drivers for each of our operating segments. See “Segmented Disclosures” on page 102 for more detail.

Performance Measures Used by Management

To measure performance, we focus on net income, an IFRS measure, as well as certain non-IFRS measures, including funds from operations (“FFO”), adjusted funds from operations (“AFFO”), adjusted EBITDA (“Adjusted EBITDA”), adjusted earnings (“Adjusted Earnings”) and invested capital (“Invested Capital”), along with other measures.

FFO

We define FFO as net income excluding the impact of depreciation and amortization, deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. FFO is a measure of operating performance that is not calculated in accordance with, and does not have any standardized meaning prescribed by, International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”). FFO is therefore unlikely to be comparable to similar measures presented by other issuers. FFO has limitations as an analytical tool. Specifically, our definition of FFO may differ from the definition used by other organizations, as well as the definition of funds from operations used by the Real Property Association of Canada (“REALPAC”) and the National Association of Real Estate Investment Trusts, Inc. (“NAREIT”), in part because the NAREIT definition is based on U.S. GAAP, as opposed to IFRS.

AFFO

We define AFFO as FFO less capital expenditures required to maintain the current performance of our operations (maintenance capital expenditures). AFFO is a measure of operating performance that is not calculated in accordance with, and does not have any standardized meaning prescribed by, IFRS. AFFO is therefore unlikely to be comparable to similar measures presented by other issuers and has limitations as an analytical tool.

Adjusted EBITDA

In addition to FFO and AFFO, we focus on Adjusted EBITDA, which we define as net income excluding the impact of depreciation and amortization, interest expense, current and deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. Adjusted EBITDA is a measure of operating performance that is not calculated in accordance with, and does not have any standardized meaning prescribed by, IFRS. Adjusted EBITDA is therefore unlikely to be comparable to similar measures presented by other issuers. Adjusted EBITDA has limitations as an analytical tool.

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Adjusted Earnings

We also focus on Adjusted Earnings, which we define as net income attributable to the partnership, excluding the impact of depreciation and amortization expense from revaluing property, plant and equipment and the effects of purchase price accounting, mark-to-market on hedging items and disposition gains or losses. Adjusted Earnings is a measure of operating performance that is not calculated in accordance with, and does not have any standardized meaning prescribed by, IFRS. Adjusted Earnings is therefore unlikely to be comparable to similar measures presented by other issuers. Adjusted Earnings has limitations as an analytical tool.

Invested Capital

Invested Capital, which tracks the amount of capital that has been contributed to our partnership, is a measure we utilize to assess returns on capital deployed, relative to targeted returns. Investment decisions are based on, amongst other measures and factors, targeted returns on Invested Capital of 12% to 15% annually over the long-term. We define Invested Capital as partnership capital removing the following items: non-controlling interest - in operating subsidiaries, retained earnings or deficit, accumulated other comprehensive income and ownership changes. We measure return on Invested Capital as AFFO, less estimated returns of capital on operations that are not perpetual in life, divided by the weighted average Invested Capital for the period.

We believe our presentation of FFO, AFFO, Adjusted EBITDA, Adjusted Earnings and Invested Capital are useful to investors because it supplements investors’ understanding of our operating performance by providing information regarding our ongoing performance that excludes items we believe do not directly affect our core operations. Our presentation of FFO, AFFO, Adjusted EBITDA, Adjusted Earnings and return on Invested Capital also provide investors enhanced comparability of our ongoing performance across periods.

In deriving FFO, AFFO and Adjusted EBITDA, we add back depreciation and amortization to net income. Specifically, in our financial statements we use the revaluation approach in accordance with IAS 16, Property, Plant and Equipment, whereby depreciation expense is determined based on a revalued amount, thereby reducing comparability with our peers who do not report under IFRS as issued by the IASB or who do not employ the revaluation approach to measuring property, plant and equipment. We add back deferred income taxes on the basis that we do not believe this item reflects the present value of the actual tax obligations that we expect to incur over our long-term investment horizon. We add back non-cash valuation gains or losses recorded in net income as well as breakage and transaction costs as these items are not reflective of our on-going sustainable performance.

To provide a supplemental understanding of the performance of our business and to enhance comparability across periods and relative to our peers we utilize Adjusted EBITDA. Adjusted EBITDA excludes the impact of interest expense and current income taxes to assist in assessing the operating performance of our business by eliminating for the effect of its current capital structure and tax profile.

While FFO provides a basis for assessing current operating performance, it does not take into consideration the cost to sustain the operating performance of our partnership’s asset base. In order to assess the long-term, sustainable operating performance of our businesses, we observe that investors take into account the impact of maintenance capital expenditures to derive AFFO, in addition to FFO.

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In deriving Adjusted Earnings we add back depreciation due to the revaluation of property, plant and equipment and acquisition accounting. As we own capital assets with finite lives, depreciation and amortization expense recognizes the fact that we must maintain or replace our asset base in order to preserve our revenue generating capability. We observe that certain of our investors view depreciation based on historical cost as a more relevant proxy of the expenditures necessary to maintain the service capacity of our assets. Adjusted Earnings also does not include mark-to-market on hedging items recorded in net income or disposition gains or losses. We add back mark-to-market on hedging items recorded in net income as these indicate a point in time approximation of value on long-term positions. We also add back disposition gains or losses as these items are not reflective of the ongoing performance of our underlying operations.

For further details regarding our use of FFO, AFFO, Adjusted EBITDA, Adjusted Earnings and Invested Capital, as well as a reconciliation of net income to these measures, see the “Reconciliation of Non-IFRS Financial Measures” section of this MD&A.

Distribution Policy

Our distributions are underpinned by stable, highly regulated and contracted cash flows generated from operations. The Partnership’s objective is to pay a distribution that is sustainable on a long-term basis. The Partnership has set its target payout ratio target at 60-70% of funds from operations. In sizing what we believe to be a conservative payout ratio, we typically retain approximately 15-20% of AFFO that we utilize to fund some or all of our internally funded growth capital expenditures.

The following table presents the Partnership’s payout ratios over the past three years:

	Year ended December 31
US$ MILLIONS	2017			2016			2015
Funds from operations (FFO)	$	1,170		$	944		$	808
Adjusted funds from operations (AFFO)	941			771			672
Distributions (Limited partner, preferred and incentive distributions)	794			628			546
FFO payout ratio	68		%	67		%	68		%
AFFO payout ratio	84		%	81		%	81		%

The Partnership’s annual distribution is reviewed with the Board of Directors in the first quarter of each year giving consideration to the following:

• The results from the prior year as well as the budget for the upcoming year and the 5-year business plan based on the Partnership’s share of funds from operations generated by our assets

• The Partnership’s group-wide liquidity and its ability to fund committed capital investments

In light of the current prospects for our business, the Board of Directors of our General Partner approved an 8% increase in our annual distribution to $1.88 per unit, or $0.47 per unit quarterly, starting with the distribution to be paid in March 2018. This increase reflects the forecasted contribution from our recently commissioned capital projects, as well as the expected cash yield on acquisitions that we closed in the past year. Since the spin-off, we have increased our quarterly distribution from $0.18 per unit to $0.47 per unit, a compound annual growth rate of 11%. We target 5% to 9% annual distribution growth in light of the per unit growth we foresee in our operations.

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Basis of Presentation

Our consolidated financial statements are prepared in accordance with International Financial Reporting Standards (“IFRS”), as issued by the International Accounting Standards Board (“IASB”). Our consolidated financial statements include the accounts of Brookfield Infrastructure and the entities over which it has control. Brookfield Infrastructure accounts for investments over which it exercises significant influence or joint control, but does not control, using the equity method.

Our partnership’s equity interests include units held by public unitholders and the Redeemable Partnership Units held by Brookfield. Our units and the Redeemable Partnership Units have the same economic attributes in all respects, except that the Redeemable Partnership Units provide Brookfield the right to request that its units be redeemed for cash consideration. In the event that Brookfield exercises this right, our partnership has the right, at its sole discretion, to satisfy the redemption request with our units, rather than cash, on a one-for-one basis. As a result, Brookfield, as holder of Redeemable Partnership Units, participates in earnings and distributions on a per unit basis equivalent to the per unit participation of the limited partnership units of our partnership. However, given the redeemable feature referenced above, we present the Redeemable Partnership Units as a component of non-controlling interests.

When we discuss the results of our operating segments, we present Brookfield Infrastructure’s proportionate share of results for operations accounted for using consolidation and the equity method, in order to demonstrate the impact of key value drivers of each of these operating segments on our partnership’s overall performance. As a result, segment revenues, costs attributable to revenues, other income, interest expense, depreciation and amortization, deferred taxes, fair value adjustments and other items will differ from results presented in accordance with IFRS as they (1) include Brookfield Infrastructure’s proportionate share of earnings (losses) from investments in associates attributable to each of the above noted items, and (2) exclude the share of earnings (losses) of consolidated investments not held by Brookfield Infrastructure apportioned to each of the above noted items. However, net income for each segment is consistent with results presented in accordance with IFRS. See “Reconciliation of Operating Segment Measures” on page 123 for a reconciliation of segment results to our partnership’s statement of operating results in accordance with IFRS.

On September 14, 2016, our partnership completed a three-for-two split of our units by way of a subdivision of units (the “Unit Split”), whereby unitholders received an additional one-half of a unit for each unit held, resulting in the issuance of approximately 115 million additional units. All historical per unit disclosures have been adjusted to effect for the change in units due to the Unit Split.

Critical Accounting Policies and Estimates

The preparation of financial statements requires management to make critical judgments, estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses that are not readily apparent from other sources, during the reporting period. These estimates and associated assumptions are based on historical experience and other factors that are considered to be relevant. Actual results may differ from these estimates.

The estimates and underlying assumptions are reviewed on an ongoing basis. Revisions to accounting estimates are recognized in the period in which the estimate is revised if the revision affects only that period or in the period of the revision and future periods if the revision affects both current and future periods.

Critical judgments made by management and utilized in the normal course of preparing Brookfield Infrastructure’s consolidated financial statements are outlined below.

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Financial instruments

Critical judgments associated with the partnership’s financial instruments pertain to the assessment of the effectiveness of hedging relationships. Brookfield Infrastructure performs hedge effectiveness testing on an ongoing basis with a forward-looking evaluation of whether or not the changes in the fair value or cash flows of the hedging item are expected to be highly effective in offsetting the changes in the fair value or cash flows of the hedged item over the term of the relationship, conversely our partnership performs a retrospective hedge effectiveness test evaluating whether the changes in fair value or cash flows from the hedging item has been highly effective in offsetting changes in the fair value or cash flows of the hedged item since the date of designation. Estimates and assumptions used in determining the fair value of financial instruments are equity and commodity prices; future interest rates; the credit worthiness of the company relative to its counterparties; the credit risk of the company’s counterparties relative to the company; estimated future cash flows; and discount rates.

Revaluation of property, plant and equipment

Property, plant and equipment is revalued on a regular basis. The critical estimates and assumptions underlying the valuation of property, plant and equipment are set out in Note 12, “Property, Plant and Equipment” in our financial statements included in this annual report on Form 20-F. Our partnership’s property, plant, and equipment is measured at fair value on a recurring basis with an effective date of revaluation for all asset classes of December 31, 2017 and 2016. Brookfield Infrastructure determined fair value under the income method with due consideration to significant inputs such as the discount rate, terminal value multiple and overall investment horizon.

Impairment of goodwill, intangibles with indefinite lives and investment in associates and joint ventures

Our partnership assesses the impairment of goodwill and intangible assets with indefinite lives by reviewing the value-in-use or fair value less costs of disposal of the cash-generating units to which goodwill or the intangible asset has been allocated. Brookfield Infrastructure uses the following critical assumptions and estimates: the circumstances that gave rise to the goodwill, timing and amount of future cash flows expected from the cash-generating unit; discount rates; terminal capitalization rates; terminal valuation dates; useful lives and residual values.

The impairment assessment of investments in associates and joint ventures requires estimation of the recoverable amount of the asset.

Other estimates utilized in the preparation of our partnership’s financial statements are: depreciation and amortization rates and useful lives; recoverable amount of goodwill and intangible assets; ability to utilize tax losses and other tax measurements.

Recently adopted accounting standard amendments

Brookfield Infrastructure applied, for the first time, certain amendments to Standards applicable to Brookfield Infrastructure that became effective January 1, 2017. The impact of adopting these amendments on our partnership’s accounting policies and disclosures are as follows:

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IAS 7 Statement of Cash Flows (“IAS 7”)

In January 2016, the IASB issued amendments to IAS 7, effective for annual periods beginning on or after January 1, 2017. The amendment requires that the following changes in liabilities arising from financing activities are disclosed (to the extent necessary): (i) changes from financing cash flows; (ii) changes arising from obtaining or losing control of subsidiaries or other businesses; (iii) the effect of changes in foreign exchange rates; (iv) changes in fair values; and (v) other changes. Amendments to IAS 7 were applied prospectively and resulted in no material impact to Brookfield Infrastructure’s consolidated financial statements.

Future Changes in Accounting Policies

Standards issued, but not yet adopted

IFRS 15 Revenue from Contracts with Customers—(“IFRS 15”)

IFRS 15, Revenue from Contracts with Customers specifies how and when revenue should be recognized as well as requiring more informative and relevant disclosures. This standard also requires additional disclosures about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts. IFRS 15 supersedes IAS 18, Revenue, IAS 11, Construction Contracts and a number of revenue-related interpretations. IFRS 15 applies to nearly all contracts with customers: the main exceptions are leases, financial instruments and insurance contracts. IFRS 15 must be applied for periods beginning on or after January 1, 2018. An entity may adopt the standard on a fully retrospective basis or on a modified retrospective basis.

Our partnership has a global team in place to evaluate the financial statement and any corollary impact of adopting IFRS 15, has participated in strategic planning sessions with Brookfield and has developed an adoption plan. Management has also assessed major revenue streams, and has substantially completed accumulating, identifying and inventorying detailed information on major contracts that may be impacted by the changes at the transition date. The key areas of focus within the context of the standard are primarily in relation to the identification of performance obligation and the evaluation of the appropriate period of recognition of revenue for each of these performance obligations.

Our partnership has finalized the documented analysis and assessed potential impact to IT systems and internal controls. We will adopt the new revenue guidance effective January 1, 2018, using the modified retrospective approach, by recognizing the cumulative effect of initially applying the new standard as an adjustment to opening retained earnings as if the standard had always been in effect and whereby comparative periods will not be restated. No material adjustments required upon adoption have been noted to date, however further technical analysis and quantitative assessments are required to conclude on the overall impact.

IFRS 9 Financial Instruments—(“IFRS 9”)

In July 2014, the IASB issued the final publication of IFRS 9, superseding IAS 39, Financial Instruments. This standard establishes principles for the financial reporting of financial assets and financial liabilities that will present relevant and useful information to users of financial statements for their assessment of the amounts, timing and uncertainty of an entity’s future cash flows. This new standard also includes a new general hedge accounting standard which will align hedge accounting more closely with an entity’s risk management activities. It does not fully change the types of hedging relationships or the requirement to measure and recognize ineffectiveness, however, it will allow more hedging strategies that are used for risk management to qualify for hedge accounting and introduce more judgment to assess the effectiveness of a hedging relationship. The standard has a mandatory effective date for annual periods beginning on or after January 1, 2018.

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Our partnership has a global team in place to evaluate the financial statements and any corollary impact of IFRS 9 on its consolidated financial statements and business processes. To date, management has participated in a number of strategic planning and analysis sessions with its subsidiaries and associates in order to evaluate the impact of IFRS 9 with a primary focus on the appropriateness of financial asset classification and the consideration of the financial asset impairment requirements under this standard. The evaluation of changes resulting from IFRS 9 relating to hedge accounting have been substantially completed and it has been determined that certain hedge accounting relationships relating to aggregated foreign currency exposures will qualify for hedge accounting under this new standard. Consequently, the partnership has completed the hedge documentation for these relationships in order to apply hedge accounting to these relationships prospectively commencing on January 1, 2018. In addition, our partnership has elected certain gas storage contracts to be measured at fair value through profit or loss. Next steps involve the finalization of documented analyses and drafting pro-forma disclosures that will be required upon initial adoption of this standard and thereafter. We are progressing as planned toward the implementation of IFRS 9.

Our partnership has decided to adopt IFRS 9 retrospectively with no restatement of comparatives. A cumulative catch-up adjustment will be recorded through equity upon initial adoption. No material adjustments required upon adoption have been noted to date, however further technical analysis and quantitative assessments are required to conclude on the overall impact.

IFRS 16 Leases—(“IFRS 16”)

The IASB has published a new standard, IFRS 16. The new standard brings most leases on-balance sheet for lessees under a single model, eliminating the distinction between operating and finance leases. Lessor accounting however remains largely unchanged and the distinction between operating and finance leases is retained. IFRS 16 supersedes IAS 17, Leases and related interpretations and is effective for periods beginning on or after January 1, 2019, with earlier adoption permitted if IFRS 15 has also been applied. Brookfield Infrastructure is currently evaluating the impact of IFRS 16 on its consolidated financial statements.

Amendments and Interpretations, not yet adopted

IFRIC 22 Foreign Currency Transactions and Advance Considerations—(“IFRIC 22”)

In December 2016, the IASB issued IFRIC 22, effective for annual periods beginning on or after January 1, 2018. The interpretation clarifies that the date of the transaction for the purpose of determining the exchange rate to use on initial recognition of the related asset, expense or income (or part of it) is the date on which an entity initially recognizes the non-monetary asset or non-monetary liability arising from the payment or receipt of advance consideration. The Interpretation may be applied either retrospectively or prospectively. Adoption will occur on a prospective basis and it is not anticipated that the impact will be material.

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IFRIC 23 Uncertainty over Income Tax Treatments—(“IFRIC 23”)

In June 2017, the IASB published IFRIC 23, effective for annual periods beginning on or after January 1, 2019. The interpretation requires an entity to assess whether it is probable that a tax authority will accept an uncertain tax treatment used, or proposed to be used, by an entity in its income tax filings and to exercise judgment in determining whether each tax treatment should be considered independently or whether some tax treatments should be considered together. The decision should be based on which approach provides better predictions of the resolution of the uncertainty. An entity also has to consider whether it is probable that the relevant authority will accept each tax treatment, or group of tax treatments, assuming that the taxation authority with the right to examine any amounts reported to it will examine those amounts and will have full knowledge of all relevant information when doing so. The interpretation may be applied on either a fully retrospective basis or a modified retrospective basis without restatement of comparative information. Brookfield Infrastructure is currently evaluating the impact of IFRIC 23 on its consolidated financial statements.

5.A    OPERATING RESULTS

Consolidated Results

In this section we review our consolidated performance and financial position as of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015. Further details on the key drivers of our operations and financial position are contained within the “Segmented Disclosures” section on page 102.

The following table summarizes the financial results of Brookfield Infrastructure for the years ended December 31, 2017, 2016 and 2015.

US$ MILLIONS, EXCEPT PER UNIT INFORMATION	Year ended December 31
Summary Statements of Operating Results	2017			2016			2015
Revenues	$	3,535		$	2,115		$	1,855
Direct operating costs	(1,509		)	(1,063		)	(798		)
General and administrative expenses	(239		)	(166		)	(134		)
Depreciation and amortization expense	(671		)	(447		)	(375		)
Interest expense	(428		)	(392		)	(367		)
Share of earnings from investments in associates and joint ventures	118			248			69
Mark-to-market on hedging items	(66		)	74			83
Income tax (expense) recovery	(173		)	(15		)	4
Net income	574			528			391
Net income attributable to our partnership(1)	125			487			301
Net (loss) income per limited partnership unit	$	(0.04	)	$	1.13		$	0.69

(1) Includes net income attributable to non-controlling interests—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

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2017 vs. 2016

For the year ended December 31, 2017, we reported net income of $574 million, of which $125 million was attributable to our partnership. This is compared to net income of $528 million for the year ended December 31, 2016, of which $487 million was attributable to our partnership. The increase in consolidated net income was primarily due to acquisitions made during the year and organic growth at our existing businesses. Net income attributable to our partnership decreased despite an increase in consolidated net income, as the aforementioned positive factors were offset by the impact of non-cash movements on foreign currency hedges, which are recorded in our corporate segment. The prior year period also included non-recurring gains attributable to the partnership of $190 million related to our toll road and ports businesses.

Revenues for the year ended December 31, 2017 were $3,535 million, which represents an increase of $1,420 million compared to the prior year. Our utilities segment contributed additional revenue of $1,008 million as a result of the recent acquisition of a Brazilian regulated gas transmission business and the benefits of inflation-indexation and various growth initiatives, primarily at our U.K. regulated distribution operation. Our transport operations contributed an additional $390 million of revenue, primarily due to higher iron ore prices, which resulted in lower tariff relief extended to one of our clients at our Australian rail operation, the benefit of inflationary tariff increases and the impact of higher volumes at our South American toll roads. Additionally, revenues benefited from a full year’s contribution from the acquisitions of toll roads in Peru and an Australian ports business, both of which were completed during 2016. Organic growth initiatives within our district energy business and the expansion of our North American gas storage business contributed incremental revenue of $96 million relative to the prior year, and foreign exchange contributed a further $12 million increase across our businesses. These items were partially offset by a $19 million impact of a rate reset at our Australian regulated terminal operation and a $67 million decrease due to revenues associated with assets sold in 2016.

Direct operating expenses for the year ended December 31, 2017 were $1,509 million, which represents an increase of $446 million compared to the year ended December 31, 2016. The current period included $460 million of costs related to new businesses acquired during the year, $5 million of incremental costs associated with the organic growth initiatives described above and the impact of foreign exchange of $9 million. These increases have been partially offset by a $28 million reduction in costs associated with assets sold mid-way through 2016.

General and administrative expenses totaled $239 million for the year ended December 31, 2017, an increase of $73 million compared to the same period in 2016. This line item primarily consists of the annual base management fee that is paid to Brookfield, which is equal to 1.25% of our partnership’s market value plus our preferred units and net recourse debt. The base management fee increased from prior year due to a higher unit price and the issuance of medium-term notes, partnership units and preferred units, the proceeds from which were used to fund new investments and organic growth initiatives.

Depreciation and amortization expense for the year ended December 31, 2017 was $671 million, an increase of $224 million compared to the prior year. Depreciation and amortization expense increased due to higher asset values resulting from our annual revaluation process and capital expenditures, and incremental charges associated with new businesses acquired during the year.

Interest expense for the year ended December 31, 2017 was $428 million, an increase of $36 million compared to the same period in 2016. Interest expense was higher due to additional corporate borrowings used to fund new investments and the impact of foreign exchange, partially offset by a reduction in interest expense associated with businesses sold in the prior year.

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Earnings from investments in associates and joint ventures were $118 million for the year ended December 31, 2017, representing a decrease of $130 million compared to the same period in 2016. The decrease is predominantly associated with $122 million of non-recurring gains recorded in the prior year. These decreases were partially offset by the benefits of refinancing activities completed during the year at our North American natural gas transmission operation, inflationary tariff increases, increased traffic volumes and an increased ownership in our Brazilian toll road operations. Additionally, our 2017 earnings benefited from a full year contribution from our Australian ports business acquired in 2016, as well as foreign exchange.

Mark-to-market loss on hedging items for the year ended December 31, 2017 was $66 million compared to a gain of $74 million for the twelve-month period ended December 31, 2016. Both the current and comparative periods consist primarily of mark-to-market movements relating to foreign exchange hedging activities at the corporate level, primarily relating to the Australian dollar, British pound and Euro.

Income tax expense for the twelve-month period ended December 31, 2017 was $173 million, an increase of $158 million from the prior year. The increase is primarily due to acquisitions made during the year and higher taxable income generated by our operations.

2016 vs. 2015

For the year ended December 31, 2016, we reported net income of $528 million, of which $487 million was attributable to our partnership. This was compared to net income of $391 million in the year ended December 31, 2015, of which $301 million was attributable to our partnership.

Revenues for the year ended December 31, 2016 were $2,115 million, which represented an increase of $260 million compared to the year ended December 31, 2015. Our utilities segment contributed additional revenue of $72 million due to inflation indexation and various growth initiatives primarily at our U.K. regulated distribution operation. Our transport operations contributed an additional $276 million of revenue, primarily due to inflationary tariff increases, higher volumes at our Chilean toll roads and the initial contribution from recently completed acquisitions of toll roads in India and Peru as well as an Australian ports business. Revenue from organic growth initiatives within our district energy business and the expansion of our North American gas storage operation contributed incremental revenue of $92 million in our energy segment. These items were partially offset by a $96 million impact of foreign exchange, a $25 million impact of a regulatory rate reset at our Australian regulated terminal operation, a $16 million impact of tariff relief extended to one of our clients at our Australian rail operation and a $43 million decrease due to the sale of our New England electricity transmission, European energy distribution and Ontario electricity transmission businesses in August 2015, May 2016 and October 2016, respectively.

Direct operating expenses for the year ended December 31, 2016 were $1,063 million, which represented an increase of $265 million compared to the year ended December 31, 2015. The period included $56 million of incremental costs resulting from our aforementioned organic growth initiatives and $279 million of incremental costs related to acquisitions. These benefits were partially offset by the impact of foreign exchange of $37 million and $33 million associated with costs recorded at businesses disposed of in 2016.

General and administrative expenses for the year ended December 31, 2016 were $166 million, which represented an increase of $32 million compared to 2015. This line item primarily consisted of the annual base management fee that is paid to Brookfield, which is equal to 1.25% of our partnership’s market value plus net recourse debt. The base management fee increased compared to the same period in 2015 due to a higher market capitalization.

100 Brookfield Infrastructure

Depreciation and amortization expense for the year ended December 31, 2016 was $447 million, which represented an increase of $72 million compared to the year ended December 31, 2015. Depreciation and amortization expense increased by $96 million due to higher asset values resulting from our annual revaluation process, capital expenditures and acquisitions completed over the preceding 12 months, partially offset by the impact of foreign exchange of $24 million.

Interest expense for the year ended December 31, 2016 was $392 million, which represented an increase of $25 million compared to 2015. Interest expense increased by $36 million as a result of the aforementioned acquisitions. We also incurred additional interest expense of $14 million associated with two corporate medium term note issuances completed in March and October of 2015. These increases were partially offset by the impact of foreign exchange, which decreased our interest expense by $15 million during the period and a $10 million decrease due to the sale of our New England electricity transmission, European energy distribution and Ontario electricity transmission businesses in August 2015, May 2016 and October 2016, respectively.

Earnings from investments in associates for the year ended December 31, 2016 were $248 million, which represented an increase of $179 million compared to the year ended December 31, 2015. The increase was predominantly associated with $122 million of non-recurring gains at our Brazilian toll road operations and $22 million of deferred tax recoveries recorded at our European telecommunications infrastructure operation as a result of favourable changes in tax laws. Additionally, 2016 benefited from incremental contributions from increased ownership in our Brazilian toll road operation and our North American natural gas transmission business.

Mark-to-market gains on hedging items for the year ended December 31, 2016 were $74 million compared to $83 million for the year ended December 31, 2015. Both 2016 and 2015 consisted primarily of revaluation gains relating to foreign exchange hedging activities at the corporate level.

Income tax expense for the year ended December 31, 2016 was $15 million compared to a recovery of $4 million for the year ended December 31, 2015. The expense in the period was due to revaluation gains resulting from our annual revaluation process, which increased our deferred tax obligation. The recovery in the prior period related to a decrease in the U.K. tax rate, which reduced the future tax obligation associated with our U.K. business.

The following table summarizes the statement of financial position of Brookfield Infrastructure for the years ended December 31, 2017 and December 31, 2016.

US$ MILLIONS	As of
Summary Statements of Financial Position Key Metrics	December 31, 2017		December 31, 2016
Cash and cash equivalents	$	374	$	786
Total assets	29,477		21,275
Corporate borrowings	2,101		1,002
Non-recourse borrowings	8,063		7,324
Total liabilities	16,003		11,631
Limited partners’ capital	4,967		4,611
General partner’s capital	25		27
Non-controlling interest—Redeemable Partnership Units held by Brookfield	2,012		1,860
Non-controlling interest—in operating subsidiaries	5,875		2,771
Preferred unitholders	595		375

Brookfield Infrastructure 101

Total assets were $29,477 million at December 31, 2017, compared to $21,275 million at December 31, 2016, an increase of $8,202 million or 39%. The increase was primarily due to the acquisitions completed during the year, most notably our Brazilian regulated gas transmission business, and organic growth initiatives which have increased total assets by $7,272 million. Total assets also increased by $930 million due to the impact of foreign exchange as most foreign currencies in which we operate have appreciated against the U.S. dollar.

Corporate borrowings increased to $2,101 million at December 31, 2017, compared to $1,002 million at December 31, 2016. The increase of $1,099 million is due to incremental draws of $789 million on our corporate credit facility, net issuances of medium term notes of $231 million, and a $79 million increase from foreign currency revaluation.

Non-recourse borrowings increased by $739 million to $8,063 million at December 31, 2017 from $7,324 million at December 31, 2016. The increase is attributable to increased borrowings of $360 million associated with growth capital projects at our operating entities and a $379 million increase from the strengthening of foreign currencies against the U.S. dollar since December 31, 2016.

Partnership capital increased by $506 million to $7,004 million at December 31, 2017. This increase is due to $992 million of net proceeds from partnership units issued during the year, comprehensive income attributable to the partnership of unitholders of $308 million, partially offset by distributions paid to our unitholders and preferred unitholders of $794 million.

Preferred unitholders’ equity increased by $220 million to $595 million at December 31, 2017. The increase during the year was a result of the issuance of the Series 7 Preferred Units in January 2017.

SEGMENTED DISCLOSURES

In this section, we review the results of our principal operating segments: utilities, transport, energy, communications infrastructure, and corporate. Each segment is presented on a proportionate basis, taking into account Brookfield Infrastructure’s ownership in operations accounted for using the consolidation and equity methods, whereby our partnership either controls or exercises significant influence or joint control over its investments. See “Reconciliation of Non-IFRS Financial Measures” on page 115 for a discussion of the importance of proportionate information, the limitations associated with such information and a reconciliation of segment results to our partnership’s statement of operating results in accordance with IFRS.

102 Brookfield Infrastructure

Utilities Operations

Results of Operations

The following table presents our proportionate share of the key metrics of our utilities segment:

	Year ended December 31
US$ MILLIONS	2017			2016			2015
Rate Base	$	5,638		$	3,788		$	4,018
Funds from operations (FFO)(1)	610			399			387
Maintenance capital expenditures	(15		)	(15		)	(13		)
Adjusted funds from operations (AFFO) (1)	$	595		$	384		$	374
Return on rate base(2),(3)	11		%	11		%	11		%

(1) Non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income.

(2) Return on rate base is Adjusted EBITDA divided by time weighted average rate base.

(3) Return on rate base excludes impact of connections revenues at our U.K. regulated distribution operation.

The following table presents our utilities segment’s proportionate share of financial results:

	Year ended December 31
US$ MILLIONS	2017		2016		2015
Adjusted EBITDA(1)	$	738	$	524	$	524
Funds from operations (FFO)(1)	610		399		387

The following table presents our proportionate Adjusted EBITDA and FFO for the businesses in this operating segment:

	Adjusted EBITDA(1)						FFO(1)
US$ MILLIONS	2017		2016		2015		2017		2016		2015
Regulated Distribution	$	282	$	257	$	228	$	235	$	213	$	183
Regulated Transmission	352		135		140		308		105		112
Regulated Terminal	104		132		156		67		81		92
Total	$	738	$	524	$	524	$	610	$	399	$	387

(1) Non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income.

The following table presents the roll-forward of our rate base:

	Year ended December 31
US$ MILLIONS	2017			2016
Rate base, start of period	$	3,788		$	4,018
Acquisitions	1,498			—
Dispositions	—			(162		)
Capital expenditures commissioned	305			226
Inflation and other indexation	34			63
Regulatory depreciation	(48		)	(44		)
Foreign exchange and other	61			(313		)
Rate base, end of period	$	5,638		$	3,788

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The following table presents the roll-forward of our proportionate share of capital backlog and capital to be commissioned:

	Year ended December 31
US$ MILLIONS	2017			2016			2015
Capital backlog, start of period	$	761		$	452		$	397
Additional capital project mandates	776			793			341
Less: capital expenditures	(449		)	(428		)	(258		)
Foreign exchange and other	52			(56		)	(28		)
Capital backlog, end of period	1,140			761			452
Construction work in progress	310			225			124
Total capital to be commissioned	$	1,450		$	986		$	576

2017 vs. 2016

Adjusted EBITDA and FFO for our utilities segment increased significantly compared to the prior year due to increased revenues associated with strong connection activity at our UK regulated distribution business, inflation indexation, capital commissioned into rate base and the acquisition of our Brazilian regulated gas transmission operation. Partially offsetting these increases were the impacts of the regulatory rate reset at our Australian regulated terminal business, the sale of our Ontario electricity transmission business, and foreign exchange.

For the year ended December 31, 2017, our regulated transmission operations generated Adjusted EBITDA of $352 million and FFO of $308 million, compared to $135 million and $105 million, respectively, in 2016. Adjusted EBITDA and FFO increased compared to the prior year due to the contribution from our regulated gas transmission business in Brazil acquired during the year, the impact of inflation indexation and additions to our rate base. These increases were partially offset by the impact of the sale of the Ontario electricity transmission business in the prior year.

For the year ended December 31, 2017, our regulated distribution operations generated Adjusted EBITDA of $282 million and FFO of $235 million, compared to $257 million and $213 million, respectively, in the prior year. These increases were primarily attributable to the performance of our U.K. regulated distribution business that benefited from additions to rate base, higher connections income, inflation indexation and the contribution from smart meters adopted, partially offset by the impact of foreign exchange.

For the year ended December 31, 2017, our regulated terminal reported Adjusted EBITDA of $104 million and FFO of $67 million, compared to $132 million and $81 million, respectively, in 2016. Adjusted EBITDA and FFO decreased from the prior year as the benefits of inflation indexation were more than offset by the impacts of the regulatory rate reset effective July 1, 2016 and foreign exchange.

As of December 31, 2017, total capital to be commissioned into rate base was $1,450 million compared to $986 million as of December 31, 2016. The capital to be commissioned relates to projects that have been awarded or filed with regulators with anticipated commissioning into rate base in the next two to three years. The total capital to be commissioned as of December 31, 2017 increased due to smart meter installations and connections added to our backlog at our U.K. regulated distribution business. Our U.K. regulated distribution business, Chilean electricity transmission operations and Brazil transmission system are the largest contributors at $875 million, $335 million and $220million, respectively.

104 Brookfield Infrastructure

2016 vs. 2015

For the year ended December 31, 2016, Adjusted EBITDA from the utilities segment remained consistent with the prior year. Higher revenues associated with strong connections activity at our UK regulated distribution business, the benefits of inflation indexation and capital commissioned into rate base were offset by the impact of the regulatory rate reset at our Australian regulated terminal business, the sale of our Ontario electricity transmission business and the impact of foreign exchange. FFO increased by $12 million compared to 2015 as a result of lower interest expense associated with the aforementioned disposition and the impact of foreign exchange.

For the year ended December 31, 2016, our regulated transmission operations generated Adjusted EBITDA of $135 million and FFO of $105 million, compared to $140 million and $112 million, respectively, in 2015. Adjusted EBITDA and FFO decreased compared to the same period in 2015 as the benefits from inflation indexation and additions to our rate base were more than offset by the impact of foreign exchange and the sale of our New England and Ontario electricity transmission businesses in August 2015 and October 2016, respectively.

For the year ended December 31, 2016, our regulated distribution operations generated Adjusted EBITDA of $257 million and FFO of $213 million, compared to $228 million and $183 million, respectively, in 2015. This increase was primarily attributable to the performance of our U.K. regulated distribution business that benefited from an increased rate base, inflation indexation and the initial contribution from our smart meter acquisition, which were partially offset by the impact of foreign exchange.

For the year ended December 31, 2016, our regulated terminal reported Adjusted EBITDA of $132 million and FFO of $81 million, compared to $156 million and $92 million, respectively, in 2015. Adjusted EBITDA and FFO decreased as the benefits of inflation indexation and additions to our rate base were more than offset by foreign exchange and the impact of the regulatory rate reset effective July 1, 2016.

Transport Operations

Results of Operations

The following table presents our proportionate share of the key metrics of our transport segment:

	Year ended December 31
US$ MILLIONS	2017				2016				2015
Growth capital expenditures	$	326			$	319			$	297
Adjusted EBITDA margin(1)	44			%	48			%	49			%
Funds from operations (FFO)(2)	532				423				398
Maintenance capital expenditures	(133		)		(88		)		(72		)
Adjusted funds from operations (AFFO)(2)	$	399			$	335			$	326

(1) Adjusted EBITDA margin is Adjusted EBITDA divided by revenues. It is calculated based on net of construction revenues and costs which are incurred at our Peruvian toll road operation during the construction of our toll roads. Adjusted EBITDA margin is a non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income to Adjusted EBITDA.

(2) Non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income.

Brookfield Infrastructure 105

The following table presents our transport segment’s proportionate share of financial results:

	Year ended December 31
US$ MILLIONS	2017		2016		2015
Adjusted EBITDA(1)	$	694	$	597	$	555
Funds from operations (FFO)(1)	532		423		398

(1) Non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income.

The following table presents proportionate Adjusted EBITDA and FFO for each business in this operating segment:

	Adjusted EBITDA(1)						FFO(1)
US$ MILLIONS	2017		2016		2015		2017		2016		2015
Rail	$	262	$	270	$	292	$	192	$	206	$	231
Toll Roads	333		239		180		257		152		111
Ports	99		88		83		83		65		56
Total	$	694	$	597	$	555	$	532	$	423	$	398

(1) Non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income.

The following table presents the roll-forward of our proportionate share of capital backlog and capital to be commissioned:

	Year ended December 31
US$ MILLIONS	2017			2016			2015
Capital backlog, start of period	$	721		$	467		$	655
Additional capital project mandates	303			533			316
Less: capital expenditures	(326		)	(319		)	(297		)
Foreign exchange and other	(61		)	40			(207		)
Capital backlog, end of period	637			721			467
Construction work in progress	113			349			110
Total capital to be commissioned	$	750		$	1,070		$	577

2017 vs. 2016

Adjusted EBITDA and FFO for our transport segment increased compared to the prior year due to higher revenues associated with an increase in volumes across most of our networks, higher tariffs charged at our South American rail and toll road businesses, and a full year contribution from our Australian ports business acquired in 2016. These benefits were partially offset by the impact of foreign exchange at our Australian rail operations.

For the year ended December 31, 2017, our rail business generated Adjusted EBITDA of $262 million and FFO of $192 million, compared to $270 million and $206 million, respectively, in 2016. Adjusted EBITDA and FFO decreased as the benefits from higher volumes and increased tariffs in South America were more than offset by the impact of foreign exchange movements.

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For the year ended December 31, 2017, our toll roads contributed Adjusted EBITDA of $333 million and FFO of $257 million, compared to $239 million and $152 million, respectively, in 2016. Adjusted EBITDA and FFO in the current period benefited from a 3% increase in traffic flows, inflationary increases in tariffs at all of our operations and an increased ownership in our Brazilian toll road business.

For the year ended December 31, 2017, our port operations reported Adjusted EBITDA of $99 million and FFO of $83 million, compared to $88 million and $65 million, respectively, in 2016. Adjusted EBITDA and FFO increased versus the prior year due to higher volumes across a number of our port operations and a full year contribution from our Australian ports business acquired in August 2016.

As of December 31, 2017, total capital to be commissioned into rate base was $750 million compared to $1,070 million as of December 31, 2016. The total capital to be commissioned decreased as capital project mandates awarded were more than offset by capital expenditures made during the period and the impact of foreign exchange. Our Brazilian toll road business and Brazilian rail operation are the largest contributors to our capital to be commissioned over the next two to three years at approximately $630 million and $90 million, respectively.

2016 vs. 2015

For the year ended December 31, 2016, Adjusted EBITDA and FFO from the transport segment increased compared with the prior year as a result of higher revenues associated with increased tariffs in our South American rail and toll road businesses and the initial contribution from our Australian ports business acquired in 2016. These positive factors were partially offset by the impact of a tariff relief package extended to one of our rail clients in Australia, lower volumes at our Brazilian businesses and our European port operations, and foreign exchange movements.

For the year ended December 31, 2016, our rail business generated Adjusted EBITDA of $270 million and FFO of $206 million, compared to $292 million and $231 million, respectively, in 2015. Adjusted EBITDA and FFO decreased as the benefit from increased tariffs in South America was more than offset by lower agricultural volumes in Brazil, the impact of a tariff relief package extended to one of our clients in Australia and foreign exchange movements.

For the year ended December 31, 2016, our toll roads contributed Adjusted EBITDA of $239 million and FFO of $152 million, compared to $180 million and $111 million, respectively, in 2015. The Adjusted EBITDA and FFO benefited from an 11% increase in average tariffs, increased ownership in our Brazilian toll road business, strong traffic volumes on our Chilean toll roads and contributions from our investments in Peru and India. These positive results were partially offset by lower vehicle traffic in Brazil and foreign exchange movements.

For the year ended December 31, 2016, our port operations reported Adjusted EBITDA of $88 million and FFO of $65 million, compared to $83 million and $56 million, respectively, in 2015. Adjusted EBITDA and FFO increased versus the prior year due to the acquisition of our Australian ports business in August 2016 and contribution from new contracts signed at our U.K. port terminal, partially offset by lower volumes at our European port operations.

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Energy Operations

Results of Operations

The following table presents our proportionate share of the key metrics of our energy segment:

	Year ended December 31
US$ MILLIONS	2017				2016				2015
Growth capital expenditures	$	76			$	67			$	27
Adjusted EBITDA margin(1)	50			%	56			%	48			%
Funds from operations (FFO)(2)	209				175				90
Maintenance capital expenditures	(70		)		(61		)		(45		)
Adjusted funds from operations (AFFO)(2)	$	139			$	114			$	45

(1) Adjusted EBITDA margin is Adjusted EBITDA divided by revenues. Adjusted EBITDA margin is a non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income to Adjusted EBITDA.

(2) Non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income.

The following table presents our energy segment’s proportionate share of financial results:

	Year ended December 31
US$ MILLIONS	2017		2016		2015
Adjusted EBITDA(1)	$	281	$	276	$	166
Funds from operations (FFO)(1)	209		175		90

(1) Non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income.

The following table presents proportionate Adjusted EBITDA and FFO for each business in this operating segment:

	Adjusted EBITDA(1)						FFO(1)
US$ MILLIONS	2017		2016		2015		2017		2016		2015
Energy Transmission & Storage	$	228	$	225	$	118	$	165	$	131	$	49
District Energy	53		51		48		44		44		41
Total	$	281	$	276	$	166	$	209	$	175	$	90

(1) Non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income.

108 Brookfield Infrastructure

The following table presents the roll-forward of our proportionate share of capital backlog and capital to be commissioned:

	Year ended December 31
US$ MILLIONS	2017			2016			2015
Capital backlog, start of period	$	147		$	181		$	73
Additional capital project mandates	61			37			151
Less: capital expenditures	(76		)	(67		)	(27		)
Foreign exchange and other	11			(4		)	(16		)
Capital backlog, end of period	143			147			181
Construction work in progress	71			37			37
Total capital to be commissioned	$	214		$	184		$	218

2017 vs. 2016

Adjusted EBITDA and FFO from the energy segment increased compared to the prior year due to higher revenues and costs associated with an increase in transportation volumes at our North American natural gas transmission operation and incremental contributions from new customers and tuck-in acquisitions completed at our North American district energy businesses.

For the year ended December 31, 2017, our energy transmission and storage operations generated Adjusted EBITDA of $228 million and FFO of $165 million, compared to $225 million and $131 million, respectively, in 2016. Adjusted EBITDA and FFO increased versus prior year as a result of higher transportation volumes at our North American natural gas transmission operation and the impact of de-leveraging activities.

For the year ended December 31, 2017, our district energy business contributed Adjusted EBITDA of $53 million and FFO of $44 million, compared to $51 million and $44 million, respectively, in 2016. Adjusted EBITDA and FFO increased versus the prior year as a result of the initial contribution from 11 new customers in North America and the contribution from tuck-in acquisitions completed in the U.S. and Canada in June 2017.

As of December 31, 2017, total capital to be commissioned was $214 million compared to $184 million as of December 31, 2016. Total capital to be commissioned increased as capital project mandates awarded were partially offset by capital expenditures made during the period. Capital to be commissioned includes approximately $145 million within our energy transmission and storage operations, and approximately $70 million in our district energy businesses.

2016 vs. 2015

For the year ended December 31, 2016, Adjusted EBITDA and FFO from the energy segment increased compared with the prior year. Revenues and costs increased due to our increased ownership, the impact of de-leveraging activities and higher transportation volumes, all at our North American natural gas transmission operation. Additionally, the current period benefited from the expansion of our North American gas storage operations and the contribution from new residential and commercial customer connections at our district energy operations.

Brookfield Infrastructure 109

For the year ended December 31, 2016, our energy transmission and storage operations generated Adjusted EBITDA of $225 million and FFO of $131 million, compared to $118 million and $49 million, respectively, in 2015. Adjusted EBITDA and FFO increased as a result of our increased ownership, the impact of de-leveraging activities and higher transportation volumes, all at our North American natural gas transmission operation. Results also benefited from the acquisition of a North American gas storage business completed in July 2016.

For the year ended December 31, 2016, our district energy business contributed Adjusted EBITDA of $51 million and FFO of $44 million, compared to $48 million and $41 million, respectively, in 2015. Adjusted EBITDA and FFO increased versus the prior year as a result of adding over 1,400 residential connections across the business and the contribution from a tuck-in acquisition completed in Houston during the second half of 2016.

Communications Infrastructure Operations

Results of Operations

The following table presents our proportionate share of the key metrics of our communications infrastructure segment:

	Year ended December 31
US$ MILLIONS	2017			2016			2015
Growth capital expenditures	$	42		$	29		$	15
Adjusted EBITDA margin(1)	55		%	56		%	54		%
Funds from operations (FFO)(2)	76			77			60
Maintenance capital expenditures	(11		)	(9		)	(6		)
Adjusted funds from operations (AFFO)(2)	$	65		$	68		$	54

(1) Adjusted EBITDA margin is Adjusted EBITDA divided by revenues. Adjusted EBITDA margin is a non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income to Adjusted EBITDA.

(2) Non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income.

The following table presents our communications infrastructure segment’s proportionate share of financial results:

	Year ended December 31
US$ MILLIONS	2017		2016		2015
Adjusted EBITDA(1)	$	90	$	91	$	66
Funds from operations (FFO)(1)	76		77		60

(1) Non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income.

2017 vs. 2016

For the year ended December 31, 2017, our communications infrastructure segment generated Adjusted EBITDA and FFO of $90 million and $76 million, respectively, versus $91 million and $77 million, respectively, in the prior year. Adjusted EBITDA and FFO were relatively in-line with the prior year as the benefits from inflation indexation and additions to existing tower infrastructure during the year were more than offset by the impact of foreign exchange.

110 Brookfield Infrastructure

As of December 31, 2017, total capital to be commissioned into rate base was $220 million compared to $40 million as of December 31, 2016. Total capital to be commissioned increased by $180 million primarily due to contracts secured for the deployment of fibre-to-the-home across north-east France.

2016 vs. 2015

For the year ended December 31, 2016, our communications infrastructure segment generated Adjusted EBITDA and FFO of $91 million and $77 million, respectively, versus $66 million and $60 million, respectively, in the prior year. Revenues and costs increased compared to the prior year due to the full year contribution of the business, which was acquired at the end of the first quarter of 2015, the benefit of new points of presence added in the second half of 2016 and inflationary revenue increases. FFO increased compared to the prior year as the above positive factors were partially offset by higher interest costs associated with the long-term financing put in place in the first half of 2016.

Corporate

The following table presents the components of Corporate, on a proportionate basis for the twelve months ended:

	Year ended December 31
US$ MILLIONS	2017			2016			2015
Adjusted EBITDA(1)	$	(239	)	$	(166	)	$	(134	)
Funds from operations (FFO)(1)	(257		)	(130		)	(127		)

(1) Non-IFRS measure. Refer to the “Reconciliation of Non-IFRS Financial Measures” and “Reconciliation of Operating Segment Measures” sections of this MD&A for reconciliation from net income.

2017 vs. 2016

For the year ended December 31, 2017, Adjusted EBITDA and FFO for our Corporate segment were losses of $239 million and $257 million, respectively, versus losses of $166 million and $130 million, respectively, in the prior year. Adjusted EBITDA and FFO decreased compared to the prior year due to a higher base management fee, lower income from our financial asset portfolio and higher financing costs due to increased borrowings used to fund new investments.

General and administrative costs for the year ended December 31, 2017 were consistent with the comparative periods.

Pursuant to our Master Services Agreement, we pay Brookfield an annual base management fee equal to 1.25% of our market value plus net recourse debt. The base management fee increased from the prior year due to a higher market capitalization as a result of an increase in our unit price and the impact of capital raised in the last 12 months to fund new investments.

2016 vs. 2015

For the year ended December 31, 2016, our Corporate segment Adjusted EBITDA and FFO were losses of $166 million and $130 million, respectively, versus losses of $134 million and $127 million, respectively, in the prior year. Adjusted EBITDA and FFO decreased compared to the prior year as a result of a higher base management fee and financing costs in the current year, partially offset by an increase in other income earned on higher yielding financial assets in 2016.

General and administrative costs for the year ended December 31, 2016 were consistent with the comparative period.

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SELECTED STATEMENT OF OPERATING RESULTS AND FINANCIAL POSITION INFORMATION

To measure performance, we focus on net income, an IFRS measure, as well as certain non-IFRS measures, including but not limited to FFO, AFFO, Adjusted EBITDA, Adjusted Earnings and Invested Capital. We define FFO as net income excluding the impact of depreciation and amortization, deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. We define AFFO as FFO less capital expenditures required to maintain the current performance of our operations (maintenance capital expenditures). We define Adjusted EBITDA as net income excluding the impact of depreciation and amortization, interest expense, current and deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. We define Adjusted Earnings as net income attributable to our partnership, excluding the impact of depreciation and amortization expense from revaluing property, plant and equipment and the effects of purchase price accounting, mark-to-market on hedging items and disposition gains or losses. We define Invested Capital as partnership capital removing the following items: non-controlling interest - in operating subsidiaries, retained earnings or deficit, accumulated other comprehensive income and ownership changes.

Along with net income and other IFRS measures, FFO, Adjusted EBITDA, Adjusted Earnings and Invested Capital are key measures of our financial performance that we use to assess the results and performance of our operations on a segmented basis. AFFO is also a measure of operating performance, and represents the ability of our businesses to generate sustainable earnings. Adjusted Earnings is a measure of operating performance used to assess the ability of our businesses to generate recurring earnings which allows users to better understand and evaluate the underlying financial performance of our partnership. Invested Capital, which tracks the amount of capital that has been contributed to our partnership, is a measure we utilize to assess returns on capital deployed, relative to targeted returns.

Since they are not calculated in accordance with, and do not have any standardized meanings prescribed by IFRS, FFO, AFFO, Adjusted EBITDA, Adjusted Earnings and Invested Capital are unlikely to be comparable to similar measures presented by other issuers and have limitations as analytical tools. Specifically, our definition of FFO may differ from the definition used by other organizations, as well as the definition of funds from operations used by the Real Property Association of Canada (“REALPAC”) and the National Association of Real Estate Investment Trusts, Inc. (“NAREIT”), in part because the NAREIT definition is based on U.S. GAAP, as opposed to IFRS.

112 Brookfield Infrastructure

For further details regarding our use of FFO, AFFO, Adjusted EBITDA, Adjusted Earnings and Invested Capital, as well as a reconciliation of the most directly comparable IFRS measures to these measures, see the “Reconciliation of Non-IFRS Financial Measures” section on page 115 of this MD&A.

US$ MILLIONS, EXCEPT PER UNIT INFORMATION	Year ended December 31
Key Metrics	2017			2016			2015
Net income(1)	$	125		$	487		$	301
Net (loss) income per limited partnership unit(2)	(0.04		)	1.13			0.69
Funds from operations (FFO)(3)	1,170			944			808
Per unit FFO(4)	3.11			2.72			2.39
Adjusted funds from operations (AFFO)(5)	941			771			672
Return on invested capital(6)	13		%	13		%	13		%
Adjusted EBITDA(7)	1,564			1,322			1,177
Adjusted earnings(8)	569			505			464
Adjusted earnings per unit(4)	1.51			1.45			1.38
Distributions per unit	1.74			1.55			1.41
Payout ratio(9)	68		%	67		%	68		%

(1) Net income attributable to limited partners, non-controlling interest attributable to redeemable partnership units and the general partner.

(2) Average number of limited partnership units outstanding on a time weighted average basis for the year were 264.6 million (2016: 244.7 million, 2015: 238.9 million).

(3) FFO is defined as net income excluding the impact of depreciation and amortization deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. Refer to the “Reconciliation of Non-IFRS Financial Measures” section of this MD&A for reconciliation from net income to FFO.

(4) Average units outstanding during the year of 376.8 million (2016: 347.2 million, 2015: 337.4 million).

(5) AFFO is defined as FFO less maintenance capital expenditures. Refer to the “Reconciliation of Non-IFRS Financial Measures” section of this MD&A for a reconciliation from net income to AFFO.

(6) Return on invested capital is calculated as AFFO, adjusted for an estimate of the portion of earnings that represent a return of capital on concession-based businesses, divided by Invested Capital. The return of capital estimate for the year ended December 31, 2017 was $68 million (2016: $41 million, 2015: $41 million). Refer to the “Reconciliation of Non-IFRS Financial Measures” section of this MD&A for reconciliation from partnership capital to Invested Capital.

(7) Adjusted EBITDA is defined as net income excluding the impact of depreciation and amortization, interest expense, current and deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. Refer to the “Reconciliation of Non-IFRS Financial Measures” section of this MD&A for a reconciliation from net income to Adjusted EBITDA.

(8) Adjusted Earnings is defined as net income attributable to our partnership, excluding the impact of depreciation and amortization expense from revaluing property, plant and equipment and the effects of purchase price accounting, mark-to-market on hedging items and disposition gains or losses. Refer to the “Reconciliation of Non-IFRS Financial Measures” section of this MD&A for a reconciliation from net income to Adjusted Earnings.

(9) Payout ratio is defined as distributions paid per unit (inclusive of GP incentive and preferred unit distributions) divided by FFO.

For the year ended December 31, 2017, FFO totaled $1,170 million ($3.11 per unit) compared to FFO of $944 million ($2.72 per unit) in 2016 and FFO of $808 million ($2.39 per unit) in 2015. FFO increased by 14% and 14% on a per unit basis compared to 2016 and 2015, respectively, as a result of organic growth across most of our businesses and incremental earnings on capital that we deployed over the past two years, partially offset by the impact of foreign exchange. Distributions paid during 2017 represented a payout ratio of 68%, which is within our long-term target range of 60-70%.

Brookfield Infrastructure 113

The following tables present selected statement of operating results and financial position information by operating segment on a proportionate basis:

US$ MILLIONS	Year ended December 31
Statement of Operating Results	2017			2016			2015
Net income (loss) by segment
Utilities	$	313		$	162		$	210
Transport	139			206			135
Energy	32			90			—
Communications Infrastructure	11			27			15
Corporate	(370		)	2			(59		)
Net income	$	125		$	487		$	301
Adjusted EBITDA by segment
Utilities	$	738		$	524		$	524
Transport	694			597			555
Energy	281			276			166
Communications Infrastructure	90			91			66
Corporate	(239		)	(166		)	(134		)
Adjusted EBITDA	$	1,564		$	1,322		$	1,177
FFO by segment
Utilities	$	610		$	399		$	387
Transport	532			423			398
Energy	209			175			90
Communications Infrastructure	76			77			60
Corporate	(257		)	(130		)	(127		)
FFO	$	1,170		$	944		$	808

	As of
US$ MILLIONS	December 31, 2017			December 31, 2016
Statement of Financial Position
Total assets by segment
Utilities	$	6,542		$	4,605
Transport	6,990			6,160
Energy	3,134			3,032
Communications Infrastructure	1,049			933
Corporate	(1,083		)	(510		)
Total assets	$	16,632		$	14,220
Net debt by segment
Utilities	$	3,252		$	2,798
Transport	2,874			2,611
Energy	1,328			1,468
Communications Infrastructure	435			392
Corporate	1,739			453
Net Debt	$	9,628		$	7,722
Partnership capital by segment
Utilities	$	3,290		$	1,807
Transport	4,116			3,549
Energy	1,806			1,564
Communications Infrastructure	614			541
Corporate	(2,822		)	(963		)
Partnership capital	$	7,004		$	6,498

114 Brookfield Infrastructure

RECONCILIATION OF NON-IFRS FINANCIAL MEASURES

We focus on FFO to measure operating performance, along with IFRS measures such as net income. In addition, we also assess AFFO, Adjusted EBITDA, Adjusted Earnings and Invested Capital.

Adjusted EBITDA, FFO, AFFO, Adjusted Earnings and Invested Capital are presented based on our proportionate share of results in operations accounted for using the consolidation and the equity method whereby we either control or exercise significant influence or joint control over the investment, respectively. Proportionate financial information is not, and is not intended to be, presented in accordance with IFRS. Under IFRS, we are not considered to control those entities that have not been consolidated and as such, have been presented as investments in associates or joint ventures in Note 11 of the partnership’s financial statements. The presentation of the assets and liabilities and revenues and expenses do not represent our legal claim to such items, and the removal of financial statement amounts that are attributable to non-controlling interests does not extinguish the partnership’s legal claims or exposures to such items.

As a result, segment revenues, costs attributable to revenues, general and administrative costs, interest expense, other income, depreciation and amortization, deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses are reconciling items that will differ from results presented in accordance with IFRS as these reconciling items include our proportionate share of earnings from investments in associates attributable to each of the above-noted items, and exclude the proportionate share of earnings (loss) of consolidated investments not held by the partnership apportioned to each of the above-noted items.

We provide proportionate financial results because we believe it assists investors and analysts in estimating our overall performance and understanding the partnership’s share of results from its underlying investments which have varying economic ownership interests and financial statement presentations when determined in accordance with IFRS. We believe our proportionate financial information, when read in conjunction with the partnership’s reported results under IFRS, provides the most meaningful assessment of how our operations are performing and capital is being managed. The presentation of proportionate results has limitations as an analytical tool, including the following:

• The amounts shown on the individual line items were derived by applying our overall economic ownership interest percentage determined when applying the equity method of accounting and do not necessarily represent our legal claim to the assets and liabilities, or the revenues and expenses;

• Other companies may calculate proportionate results differently than we do.

Because of these limitations, our proportionate financial information should not be considered in isolation or as a substitute for our financial statements as reported under IFRS.

The following tables present each segment’s results in the format that management organizes its segments to make operating decisions and assess performance. These tables reconcile our proportionate results to our partnership’s consolidated statements of operating results on a line by line basis by aggregating the components comprising the earnings from our investments in associates and reflecting the portion of each line item attributable to non-controlling interests.

See “Discussion of Segment Reconciling Items” beginning on page 128 for a reconciliation of segment results to our statement of operating results in accordance with IFRS along with a break-down of each of the reconciling items by type and by operating segment.

Brookfield Infrastructure 115

Net income is the most directly comparable IFRS measure to FFO, AFFO, Adjusted EBITDA and Adjusted Earnings. Partnership capital is the most directly comparable IFRS measure to Invested Capital. We urge you to review the IFRS financial measures within the MD&A and to not rely on any single financial measure to evaluate our partnership.

We define FFO as net income excluding the impact of depreciation and amortization, deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses.

FFO has limitations as an analytical tool:

• FFO does not include depreciation and amortization expense; because we own capital assets with finite lives, depreciation and amortization expense recognizes the fact that we must maintain or replace our asset base in order to preserve our revenue generating capability;

• FFO does not include deferred income taxes, which may become payable if we own our assets for a long period of time; and

• FFO does not include certain non-recurring charges such as breakage and transaction costs or non-cash valuation gains, losses and impairment charges.

FFO is a key measure that we use to evaluate the performance of our operations and forms the basis for our partnership’s distribution policy.

When viewed along with our IFRS results, we believe that FFO provides a more complete understanding of factors and trends affecting our underlying operations. FFO allows us to evaluate our businesses on the basis of cash return on invested capital by removing the effect of non-cash and other items.

We add back depreciation and amortization to remove the implication that our assets decline in value over time since we believe that the value of most of our assets will be sustained over time, provided we make all necessary maintenance expenditures. We add back deferred income taxes because we do not believe this item reflects the present value of the actual cash tax obligations we will be required to pay, particularly if our operations are held for a long period of time. We add back non-cash valuation gains or losses recorded in net income as they are non-cash and indicate a point-in-time approximation of value on items we consider long-term. We also add back breakage and transaction costs as they are capital in nature.

In addition, we focus on adjusted funds from operations or AFFO, which is defined as FFO less capital expenditures required to maintain the current performance of our operations (maintenance capital expenditures). While FFO provides a basis for assessing current operating performance, it does not take into consideration the cost to sustain the operating performance of our partnership’s asset base. In order to assess the long-term, sustainable operating performance of our businesses, we observe that in addition to FFO, investors use AFFO by taking into account the impact of maintenance capital expenditures.

We also focus on Adjusted EBITDA which we define as net income excluding the impact of depreciation and amortization, interest expense, current and deferred income taxes, breakage and transaction costs and non-cash valuation gains or losses. Adjusted EBITDA provides a supplemental understanding of the performance of our business and enhanced comparability across periods and relative to our peers. Adjusted EBITDA excludes the impact of interest expense and current income taxes to remove the effect of the current capital structure and tax profile in assessing the operating performance of our businesses.

116 Brookfield Infrastructure

Adjusted Earnings is a measure that can be used to evaluate the performance of our operations, defined as net income attributable to our partnership, excluding any incremental depreciation and amortization expense associated with the revaluation of our property, plant and equipment and the impact of purchase price accounting, mark-to-market on hedging items and disposition gains or losses. While we believe that maintenance capital expenditures are the best measure of the cost to preserve our revenue generating capability, we acknowledge that investors may view historical depreciation as a more relevant proxy. Adjusted Earnings also excludes mark-to-market on hedging items recorded in net income or disposition gains or losses as we believe these items are not reflective of the ongoing performance of our underlying operations.

When viewed with our IFRS results, we believe that Adjusted Earnings provides a supplemental understanding of the performance of our underlying operations and also gives users enhanced comparability of our ongoing performance relative to peers in certain jurisdictions and across periods.

Invested Capital, which tracks the amount of capital that has been contributed to our partnership, is a measure we utilize to assess returns on capital deployed, relative to targeted returns. Investment decisions are based on, amongst other measures and factors, targeted returns on Invested Capital of 12% to 15% annually over the long-term. We define Invested Capital as partnership capital removing the following items: non-controlling interest - in operating subsidiaries, retained earnings or deficit, accumulated other comprehensive income and ownership changes. We measure return on Invested Capital as AFFO, less estimated returns of capital on operations that are not perpetual in life, divided by the weighted average Invested Capital for the period.

Brookfield Infrastructure 117

FFO is a measure of operating performance that is not calculated in accordance with, and does not have any standardized meaning prescribed by IFRS as issued by the IASB. FFO is therefore unlikely to be comparable to similar measures presented by other issuers. FFO has limitations as an analytical tool. Specifically, our definition of FFO may differ from the definition used by other organizations, as well as the definition of funds from operations used by the REALPAC and the NAREIT, in part because the NAREIT definition is based on U.S. GAAP, as opposed to IFRS. A reconciliation of the most closely-related IFRS measure, net income, to FFO and AFFO is as follows:

	Year ended December 31
US$ MILLIONS(1)	2017			2016			2015
Net income	$	574		$	528		$	391
Add back or deduct the following:
Depreciation and amortization	671			447			375
Share of earnings from investments in associates and joint ventures(2)	(118		)	(248		)	(69		)
FFO contribution from investments in associates and joint ventures(2)	584			454			341
Income tax expense (recovery)	173			15			(4		)
Mark-to-market on hedging items and other	59			(248		)	(137		)
Other (expense) income	(61		)	95			36
Consolidated funds from operations	1,882			1,043			933
FFO attributable to non-controlling interests(3)	(712		)	(99		)	(125		)
FFO	1,170			944			808
Maintenance capital expenditures	(229		)	(173		)	(136		)
AFFO	$	941		$	771		$	672

(1) See Item 5 “Operating and Financial Review and Prospects—Management’s Discussion and Analysis of Financial Condition and Results of Operations—Other Relevant Measures—Reconciliation of Operating Segment Measures” for a detailed reconciliation of Brookfield Infrastructure’s proportionate results to our partnership’s consolidated statements of operating results.

(2) These adjustments have the combined effect of excluding the impact of depreciation and amortization, deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses recorded within our investments in associates and joint ventures in accordance with our definition of FFO.

(3) By adjusting FFO attributable to non-controlling interests, the partnership is able to remove the portion of FFO earned at non-wholly owned subsidiaries that is not attributable to the partnership. We believe our proportionate financial information, when read in conjunction with the partnership’s reported results under IFRS, provides the most meaningful assessment of how our operations are performing. Please refer to the discussion of limitations of the proportional results as an analytical tool within the “Reconciliation of Non-IFRS Financial Measures” section on page 115.

All reconciling amounts from net income to FFO presented above are taken directly from the Partnership’s consolidated financial statements, and in the case of “Contribution from investments in associates and joint ventures” and “Attributable to non-controlling interests”, the Partnership’s proportionate share of FFO relating thereto are derived using the accounting policies consistent with those applied in the Partnership’s consolidated financial statements; FFO for these items is calculated on the same basis as consolidated entities as disclosed above; and are calculated by applying the same ownership percentages used in calculating the Partnership’s share of equity accounted income and the corresponding elimination of non-controlling interests in accordance with IAS 28, Investments in Associates and Joint Ventures and IFRS 10, Consolidated Financial Statements, respectively.

118 Brookfield Infrastructure

The difference between net income and FFO is due to depreciation and amortization expenses of $671 million (2016: $447 million, 2015: $375 million), share of earnings from investments in associates and joint ventures of $118 million (2016: $248 million, 2015: $69 million), income tax expense of $173 million (2016: expense of $15 million, 2015: recovery of $4 million), losses on mark-to-market on hedging items and other of $59 million (2016: gains of $248 million, 2015: gains of $137 million) and other expense of $61 million (2016: income of $95 million, 2015: income of $36 million), less consolidated funds from operations attributable to non-controlling interests of $712 million (2016: $99 million, 2015: $125 million).

The difference between net income and AFFO is due to the aforementioned items in addition to maintenance capital expenditures of $229 million (2016: $173 million, 2015: $136 million).

The following table reconciles net income, the most directly comparable IFRS measure, to Adjusted EBITDA, a non-IFRS measure. Adjusted EBITDA is presented based on our proportionate share of results in operations accounted for using the consolidation and the equity methods.

	Year ended December 31
US$ MILLIONS(1)	2017			2016			2015			2014			2013
Net income	$	574		$	528		$	391		$	229		$	65
Add back or deduct the following:
Depreciation and amortization	671			447			375			380			329
Interest expense	428			392			367			362			362
Share of (earnings) losses from investments in associates and joint ventures(2)	(118		)	(248		)	(69		)	(50		)	217
Adjusted EBITDA contributions from investments in associates and joint ventures(2)	763			660			498			472			442
Income tax expense (recovery)	173			15			(4		)	79			2
Mark-to-market on hedging items and other	59			(248		)	(137		)	(37		)	(82		)
Consolidated Adjusted EBITDA	2,550			1,546			1,421			1,435			1,335
Adjusted EBITDA attributable to non-controlling interests(3)	(986		)	(224		)	(244		)	(293		)	(264		)
Adjusted EBITDA attributable to discontinued operations	—			—			—			—			39
Adjusted EBITDA	$	1,564		$	1,322		$	1,177		$	1,142		$	1,110

(1) Please see Item 5 “Operating and Financial Review and Prospects—Management’s Discussion and Analysis of Financial Condition and Results of Operations—Other Relevant Measures—Reconciliation of Operating Segment Measures” for a detailed reconciliation of Brookfield Infrastructure’s proportionate results to our partnership’s consolidated statements of operating results.

(2) These adjustments have the combined effect of excluding the impact of depreciation and amortization, interest expense, current and deferred income taxes, breakage and transaction costs and non-cash valuation gains or losses recorded within our investments in associates and joint ventures in accordance with our definition of FFO.

(3) By adjusting Adjusted EBTIDA attributable to non-controlling interests, the partnership is able to remove the portion of Adjusted EBITDA earned at non-wholly owned subsidiaries that is not attributable to the partnership. We believe our proportionate financial information, when read in conjunction with the partnership’s reported results under IFRS, provides the most meaningful assessment of how our operations are performing. Please refer to the discussion of the limitations of proportional results as an analytical tool within the “Reconciliation of Non-IFRS Financial Measures” section on page 115.

Brookfield Infrastructure 119

All reconciling amounts presented above are taken directly from the Partnership’s consolidated financial statements, and in the case of “Contribution from investments in associates and joint ventures” and “Attributable to non-controlling interests”, the Partnership’s proportionate share of Adjusted EBITDA relating thereto are derived using the accounting policies consistent with those applied in the Partnership’s consolidated financial statements; Adjusted EBITDA for these items is calculated on the same basis as consolidated entities as disclosed above; and are calculated by applying the same ownership percentages used in calculating the Partnership’s share of equity accounted income and the corresponding elimination of non-controlling interests in accordance with IAS 28, Investments in Associates and Joint Ventures and IFRS 10, Consolidated Financial Statements, respectively.

The difference between net income and Adjusted EBITDA is primarily due to depreciation and amortization expenses of $671 million (2016: $447 million, 2015: $375 million, 2014: $380 million, 2013: $329 million), interest expense of $428 million (2016: $392 million, 2015: $367 million, 2014: $362 million, 2013: $362 million) and contributions from investments in associates of $763 million (2016: $660 million, 2015: $498 million, 2014: $472 million, 2013:$442 million), less consolidated Adjusted EBITDA attributable to non-controlling interests of $986 million (2016: $224 million, 2015: $244 million, 2014: $293 million, 2013: $264 million).

The following table reconciles net income attributable to our partnership, the most directly comparable IFRS measure, to Adjusted Earnings, a non-IFRS financial metric:

	Year ended
US$ MILLIONS	2017			2016			2015			2014			2013
Net income (loss) attributable to partnership(1)	$	125		$	487		$	301		$	184		$	(58	)
Add back or deduct the following:
Depreciation and amortization expense due to application of revaluation model and acquisition accounting	352			300			248			205			160
Mark-to-market on hedging items	106			(17		)	(63		)	(39		)	(7		)
Gain on sale of subsidiaries or ownership changes and other	(14		)	(265		)	(22		)	—			(37		)
Adjusted earnings	$	569		$	505		$	464		$	350		$	58

(1) Net income attributable to partnership includes net income attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

The difference between net income attributable to partnership and Adjusted Earnings is due to depreciation and amortization expense attributable to application of the revaluation model and acquisition accounting of $352 million (2016: $300 million, 2015: $248 million, 2014: $205 million, 2013: $160 million), mark-to-market losses on hedging items of $106 million (2016: gains of $17 million, 2015: gains of $63 million, 2014: gains of $39 million, 2013: gains of $7 million) and gains on the sale of subsidiaries or changes in ownership of $14 million (2016: $265 million, 2015: $22 million, 2014: $nil, 2013: $37 million).

Net income per limited partnership unit is the most directly comparable IFRS measure for per unit FFO and Adjusted Earnings per unit.

120 Brookfield Infrastructure

The following table reconciles net income per limited partnership unit, the most directly comparable IFRS measure, to FFO per unit, a non-IFRS financial metric:

	Year ended December 31
US$ MILLIONS, EXCEPT PER UNIT AMOUNTS(1)	2017			2016			2015			2014			2013
Net (loss) income per limited partnership unit(2)	$	(0.04	)	$	1.13		$	0.69		$	0.45		$	(0.29	)
Add back or deduct the following:
Depreciation and amortization	1.92			1.75			1.50			1.53			1.29
Deferred income taxes	0.02			(0.01		)	(0.16		)	(0.01		)	0.21
Mark-to-market on hedging items	0.29			(0.05		)	(0.19		)	(0.12		)	(0.02		)
Valuation losses (gains) and other	0.92			(0.10		)	0.55			0.45			1.01
Per unit FFO(3)	$	3.11		$	2.72		$	2.39		$	2.30		$	2.20

(1) See Item 5 “Operating and Financial Review and Prospects—Management’s Discussion and Analysis of Financial Condition and Results of Operations—Other Relevant Measures—Reconciliation of Operating Segment Measures” for a detailed reconciliation of Brookfield Infrastructure’s proportionate results to our partnership’s consolidated statements of operating results.

(2) During 2017, on average there were 264.6 million limited partnership units outstanding (2016: 244.7 million, 2015: 238.9 million, 2014: 225.4 million, 2013: 221.7 million).

(3) During 2017, on average there were 376.8 million units outstanding (2016: 347.2 million, 2015: 337.4 million, 2014: 315.1 million, 2013: 310.0 million).

The following table reconciles net income per limited partnership unit, the most directly comparable IFRS measure, to Adjusted Earnings per unit, a non-IFRS financial metric:

	Year ended December 31
US$ MILLIONS, EXCEPT PER UNIT AMOUNTS	2017			2016			2015			2014			2013
Net (loss) income per limited partnership unit(1)	$	(0.04	)	$	1.13		$	0.69		$	0.45		$	(0.29	)
Add back or deduct the following:
Depreciation and amortization expense due to application of revaluation model & acquisition accounting	0.93			0.86			0.74			0.65			0.52
Mark-to-market on hedging items	0.29			(0.05		)	(0.18		)	(0.13		)	(0.02		)
Gains on sale of subsidiaries or ownership changes and other	0.33			(0.49		)	0.13			0.14			(0.02		)
Adjusted earnings per unit(2)	$	1.51		$	1.45		$	1.38		$	1.11		$	0.19

(1) During 2017, on average there were 264.6 million limited partnership units outstanding (2016: 244.7 million, 2015: 238.9 million, 2014: 225.4 million, 2013: 221.7 million).

(2) During 2017, on average there were 376.8 million units outstanding (2016: 347.2 million, 2015: 337.4 million, 2014: 315.1 million, 2013: 310.0 million).

Brookfield Infrastructure 121

The following reconciles partnership capital, the most directly comparable IFRS measure, to Invested Capital, a non-IFRS financial metric:

	Year ended December 31
US$ MILLIONS	2017			2016			2015			2014			2013
Partnership capital	$	13,474		$	9,644		$	7,176		$	6,322		$	6,605
Remove impact of the following items since inception:
Non-controlling interest - in operating subsidiaries	(5,875		)	(2,771		)	(1,608		)	(1,444		)	(1,419		)
Deficit	1,366			697			804			570			306
Accumulated other comprehensive income	(1,257		)	(1,074		)	(813		)	(943		)	(989		)
Ownership changes	(109		)	(109		)	(107		)	(107		)	(107		)
Invested Capital	$	7,599		$	6,387		$	5,452		$	4,398		$	4,396

Invested capital has increased as a result of the issuance of $220 million of Series 7 preferred units in January 2017, and $992 million related to units issued in the September 2017 equity issuance and under our partnership’s distribution reinvestment plan.

The following table presents the change in Invested Capital during the year ended December 31:

	Year ended December 31
US$ MILLIONS	2017		2016		2015
Opening balance	$	6,387	$	5,452	$	4,398
Issuance of preferred units	220		186		189
Issuance of limited partnership units and redeemable partnership units	992		749		865
Ending balance, December 31	$	7,599	$	6,387	$	5,452
Weighted Average Invested Capital	$	6,885	$	5,592	$	5,058

AFFO is defined as FFO (defined in Item 5, Operating and Financial Review and Prospects) less maintenance capital expenditures. AFFO for the year ended December 31, 2017 was $941 million (2016: $771 million, 2015: $672 million). Estimated¹ returns of capital for the twelve-month period ended December 31, 2017 was $68 million (2016: $41 million, 2015: $41 million).

Our partnership has met its investment return objectives with return on Invested Capital of 13% for the year ended December 31, 2017 (2016: 13%).

1. Estimated based on the discounted cash flow models which we utilize in order to value and measure the performance of our operations.

122 Brookfield Infrastructure

OTHER RELEVANT MEASURES

The following section contains information to assist users in the calculation of the enterprise value of our partnership.

Enterprise Value

We define Enterprise Value as the market value of our partnership plus preferred units and proportionate debt, net of proportionate cash.

The following table presents Enterprise Value as of December 31, 2017, 2016 and 2015:

	Year ended December 31
US$ MILLIONS	2017		2016		2015
Partnership units outstanding, end of period(1),(2)	394.0		369.5		345.1
Price(3)	$	44.9185	$	33.4719	$	25.2876
Market capitalization	17,698		12,368		8,727
Preferred units(4)	595		375		189
Proportionate net debt(5)	9,628		7,722		8,054
Enterprise value	$	27,921	$	20,465	$	16,970

(1) Adjusted for 3-for-2 unit split effective September 14, 2016.

(2) Includes limited partner, general partner and redeemable partnership units held by Brookfield.

(3) Market value of our partnership is calculated based on the price per unit referencing the volume weighted average of the trading price of our units on the New York Stock Exchange for the last five trading days of a period.

(4) Preferred units on Brookfield Infrastructure’s Consolidated Statement of Financial Position.

(5) Proportionate net debt is a non-IFRS measure. Please see Item 5.B “Liquidity and Capital Resources” for a detailed reconciliation of Brookfield Infrastructure’s proportionate net debt to our partnership’s consolidated debt on the Consolidated Statement of Financial Position.

Reconciliation of Operating Segment Measures

Adjusted EBITDA, FFO and AFFO are presented based on our proportionate share of results in operations in each segment accounted for using consolidation and the equity method whereby we either control or exercise significant influence over the investment respectively, in order to demonstrate the impact of key value drivers of each of these operating segments on our overall performance. As a result, segment depreciation and amortization, deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses are reconciling items that will differ from results presented in accordance with IFRS as these reconciling items (1) include our proportionate share of earnings from investments in associates attributable to each of the above-noted items, and (2) exclude the proportionate share of earnings (loss) of consolidated investments not held by us apportioned to each of the above-noted items.

Brookfield Infrastructure 123

The following tables present each segment’s results in the format that management organizes its segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account our ownership in operations accounted for using the consolidation and equity method whereby we either control or exercise significant influence over the investment, respectively. These tables reconcile our proportionate results to our partnership’s consolidated statements of operating results on a line by line basis by aggregating the components comprising the earnings from our investments in associates and reflecting the portion of each line item attributable to non-controlling interests. See “Discussion of Segment Reconciling Items” on page 128 for a reconciliation of segment results to our statement of operating results in accordance with IFRS.

	Total attributable to Brookfield Infrastructure																		Contribution from investments in associates			Attributable to non- controlling interest			As per IFRS financials on F-6(1)
FOR THE YEAR ENDED DECEMBER 31, 2017 US$ MILLIONS	Utilities			Transport			Energy			Comm. Infrastructure			Corporate			Total
Revenues	$	988		$	1,589		$	559		$	165		$	—		$	3,301		$	(1,624	)	$	1,858		$	3,535
Costs attributed to revenues	(250		)	(895		)	(278		)	(75		)	—			(1,498		)	861			(872		)	(1,509		)
General and administrative costs	—			—			—			—			(239		)	(239		)	—			—			(239		)
Adjusted EBITDA	738			694			281			90			(239		)	1,564			(763		)	986
Other (expense) income	(14		)	(4		)	15			(2		)	45			40			7			(108		)	(61		)
Interest expense	(114		)	(158		)	(87		)	(12		)	(63		)	(434		)	172			(166		)	(428		)
FFO	610			532			209			76			(257		)	1,170			(584		)	712
Depreciation and amortization	(186		)	(312		)	(151		)	(77		)	—			(726		)	382			(327		)	(671		)
Deferred taxes	(52		)	(1		)	11			21			14			(7		)	(22		)	(38		)	(67		)
Mark-to-market on hedging items and other	(59		)	(80		)	(37		)	(9		)	(127		)	(312		)	106			124			(82		)
Share of earnings from associates	—			—			—			—			—			—			118			—			118
Net income attributable to non-controlling interest and preferred unitholders	—			—			—			—			—			—			—			(471		)	(471		)
Net income (loss) attributable to partnership(2)	$	313		$	139		$	32		$	11		$	(370	)	$	125		$	—		$	—		$	125

124 Brookfield Infrastructure

	Total attributable to Brookfield Infrastructure																		Contribution from investments in associates			Attributable to non- controlling interest			As per IFRS financials on F-6(1)
FOR THE YEAR ENDED DECEMBER 31, 2016 US$ MILLIONS	Utilities			Transport			Energy			Comm. Infrastructure			Corporate			Total
Revenues	$	684		$	1,247		$	496		$	163		$	—		$	2,590		$	(1,311	)	$	836		$	2,115
Costs attributed to revenues	(160		)	(650		)	(220		)	(72		)	—			(1,102		)	651			(612		)	(1,063		)
General and administrative costs	—			—			—			—			(166		)	(166		)	—			—			(166		)
Adjusted EBITDA	524			597			276			91			(166		)	1,322			(660		)	224
Other income (expense)	5			(17		)	8			(2		)	84			78			16			1			95
Interest expense	(130		)	(157		)	(109		)	(12		)	(48		)	(456		)	190			(126		)	(392		)
FFO	399			423			175			77			(130		)	944			(454		)	99
Depreciation and amortization	(154		)	(253		)	(128		)	(74		)	—			(609		)	328			(166		)	(447		)
Deferred taxes	5			26			(38		)	29			(17		)	5			9			4			18
Mark-to-market on hedging items and other	(88		)	10			81			(5		)	149			147			(131		)	117			133
Share of earnings from associates	—			—			—			—			—			—			248			—			248
Net income attributable to non-controlling interest and preferred unitholders	—			—			—			—			—			—			—			(54		)	(54		)
Net income (loss) attributable to partnership(2)	$	162		$	206		$	90		$	27		$	2		$	487		$	—		$	—		$	487

Brookfield Infrastructure 125

	Total attributable to Brookfield Infrastructure																		Contribution from investments in associates			Attributable to non- controlling interest			As per IFRS financials on F-6(1)
FOR THE YEAR ENDED DECEMBER 31, 2015 US$ MILLIONS	Utilities			Transport			Energy			Comm. Infrastructure			Corporate			Total
Revenues	$	698		$	1,143		$	349		$	123		$	—		$	2,313		$	(1,044	)	$	586		$	1,855
Costs attributed to revenues	(174		)	(588		)	(183		)	(57		)	—			(1,002		)	546			(342		)	(798		)
General and administrative costs	—			—			—			—			(134		)	(134		)	—			—			(134		)
Adjusted EBITDA	524			555			166			66			(134		)	1,177			(498		)	244
Other income (expense)	5			(15		)	3			—			34			27			13			(4		)	36
Interest expense	(142		)	(142		)	(79		)	(6		)	(27		)	(396		)	144			(115		)	(367		)
FFO	387			398			90			60			(127		)	808			(341		)	125
Depreciation and amortization	(153		)	(217		)	(90		)	(46		)	—			(506		)	246			(115		)	(375		)
Deferred taxes	(8		)	21			14			14			12			53			(41		)	14			26
Mark-to-market on hedging items and other	(16		)	(67		)	(14		)	(13		)	56			(54		)	67			66			79
Share of earnings from associates	—			—			—			—			—			—			69			—			69
Net income attributable to non-controlling interest and preferred unitholders	—			—			—			—			—			—			—			(90		)	(90		)
Net income (loss) attributable to partnership(2)	$	210		$	135		$	—		$	15		$	(59	)	$	301		$	—		$	—		$	301

(1) The above table provides each segment’s results in the format that management organizes its segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account our ownership in operations accounted for using the consolidation and equity methods under IFRS. The above table reconciles our proportionate results to our consolidated statements of operating results on a line by line basis by aggregating the components comprising the earnings from our investments in associates and reflecting the portion of each line item attributable to non-controlling interests.

(2) Net income (loss) attributable to our partnership includes net income (loss) attributable to non-controlling interests—Redeemable Partnership Units held by Brookfield, general partners and limited partners.

126 Brookfield Infrastructure

The following tables provide each segment’s assets in the format that management organizes its segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account our ownership in operations using consolidation and the equity method whereby we either control or exercise significant influence over the investment respectively. These tables reconcile our proportionate assets to total assets presented on our consolidated statements of financial position by removing net liabilities contained within investments in associates and reflecting the assets attributable to non-controlling interests, and adjusting for working capital assets which are netted against working capital liabilities.

	Total Attributable to Brookfield Infrastructure													Contribution from investments in associates			Attributable to non- controlling interest		Working capital adjustment and other		As per IFRS financials on F-5(1)
AS AT DECEMBER 31, 2017 US$ MILLIONS	Utilities		Transport		Energy		Comm. Infrastructure		Corporate			Brookfield Infrastructure
Total assets	$	6,542	$	6,990	$	3,134	$	1,049	$	(1,083	)	$	16,632	$	(3,134	)	$	11,668	$	4,311	$	29,477

	Total Attributable to Brookfield Infrastructure													Contribution from investments in associates			Attributable to non- controlling interest		Working capital adjustment and other		As per IFRS financials on F-5(1)
AS AT DECEMBER 31, 2016 US$ MILLIONS	Utilities		Transport		Energy		Comm. Infrastructure		Corporate			Brookfield Infrastructure
Total assets	$	4,605	$	6,160	$	3,032	$	933	$	(510	)	$	14,220	$	(2,996	)	$	6,496	$	3,555	$	21,275

(1) The above tables provide each segment’s assets in the format that management organizes its segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account our ownership in operations using consolidation and the equity method whereby we either control or exercise significant influence over the investment respectively. The above table reconciles our proportionate assets to total assets presented on our consolidated statements of financial position by removing net liabilities contained within investments in associates and reflecting the assets attributable to non-controlling interests, and adjusting for working capital assets which are netted against working capital liabilities.

Brookfield Infrastructure 127

Discussion of Segment Reconciling Items

The following tables detail and provide discussion, where applicable, of material changes between reporting periods for each operating segment, the reconciliation of contributions from investments in associates and attribution of non-controlling interest in the determination of Adjusted EBITDA, FFO and net income attributable to our partnership in order to facilitate the understanding of the nature of and changes to reconciling items.

FOR THE YEAR ENDED DECEMBER 31, 2017 US$ MILLIONS	Utilities			Transport			Energy			Comm. Infrastructure			Corporate			Total
Adjustments to items comprising Adjusted EBITDA(1)
Contributions from investment in associates	$	(120	)	$	(357	)	$	(194	)	$	(91	)	$	(1	)	$	(763	)
Attribution to non-controlling interest	732			157			118			—			(21		)	986
Adjusted EBITDA	612			(200		)	(76		)	(91		)	(22		)	223
Adjustments to items comprising FFO(2)
Contributions from investments in associates	31			67			65			15			1			179
Attribution to non-controlling interest	(134		)	(67		)	(54		)	(3		)	(16		)	(274		)
FFO	509			(200		)	(65		)	(79		)	(37		)	128
Adjustments to items comprising net income attributable to partnership(3)
Contributions from investment in associates	89			290			129			76			—			584
Attribution to non-controlling interest	(598		)	(90		)	(64		)	3			37			(712		)
Net income attributable to partnership	$	—		$	—		$	—		$	—		$	—		$	—

FOR THE YEAR ENDED DECEMBER 31, 2016 US$ MILLIONS	Utilities			Transport			Energy			Comm. Infrastructure			Corporate			Total
Adjustments to items comprising Adjusted EBITDA(1)
Contributions from investment in associates	$	(117	)	$	(267	)	$	(185	)	$	(91	)	$	—		$	(660	)
Attribution to non-controlling interest	149			109			88			—			(122		)	224
Adjusted EBITDA	32			(158		)	(97		)	(91		)	(122		)	(436		)
Adjustments to items comprising FFO(2)
Contributions from investments in associates	27			77			88			14			—			206
Attribution to non-controlling interest	(50		)	(42		)	(22		)	—			(11		)	(125		)
FFO	9			(123		)	(31		)	(77		)	(133		)	(355		)
Adjustments to items comprising net income attributable to partnership(3)
Contributions from investment in associates	90			190			97			77			—			454
Attribution to non-controlling interest	(99		)	(67		)	(66		)	—			133			(99		)
Net income attributable to partnership	$	—		$	—		$	—		$	—		$	—		$	—

128 Brookfield Infrastructure

FOR THE YEAR ENDED DECEMBER 31, 2015 US$ MILLIONS	Utilities			Transport			Energy			Comm. Infrastructure			Other			Total
Adjustments to items comprising Adjusted EBITDA(1)
Contributions from investment in associates	$	(115	)	$	(224	)	$	(93	)	$	(66	)	$	—		$	(498	)
Attribution to non-controlling interest	162			63			51			—			(32		)	244
Adjusted EBITDA	47			(161		)	(42		)	(66		)	(32		)	(254		)
Adjustments to items comprising FFO(2)
Contributions from investments in associates	25			62			63			7			—			157
Attribution to non-controlling interest	(56		)	(32		)	(22		)	—			(9		)	(119		)
FFO	16			(131		)	(1		)	(59		)	(41		)	(216		)
Adjustments to items comprising net income attributable to partnership(3)
Contributions from investment in associates	90			162			30			59			—			341
Attribution to non-controlling interest	(106		)	(31		)	(29		)	—			41			(125		)
Net income attributable to partnership	$	—		$	—		$	—		$	—		$	—		$	—

(1) Revenues, costs attributed to revenues, general and administrative costs.

(2) Other income, interest expense and current income taxes.

(3) Depreciation and amortization, deferred taxes, fair value adjustments, other expenses, share of earnings from associates, net income attributable to non-controlling interest.

2017 vs. 2016

Contributions from investments in associates and joint ventures decreased compared to 2016 as additions to rate base and inflation indexation at our Chilean electricity transmission system along with contributions from the increased investment in our Brazilian toll road operation and our North American natural gas transmission operation were more than offset by the impact of foreign exchange associated with the depreciation of the Chilean peso and non-recurring gains recorded within our transport and energy operations in the prior year.

Attribution to non-controlling interest increased compared to 2016 primarily due to the acquisitions completed during the year.

2016 vs. 2015

Contributions from investments in associates and joint ventures increased compared to 2015 as additions to rate base and inflation indexation at our Chilean electricity transmission system along with contributions from the increased investment in our Brazilian toll road operation and our North American natural gas transmission operation were partially offset by the impact of foreign exchange associated with the depreciation of the Brazilian reais and Chilean peso.

Attribution to non-controlling interest decreased compared to 2015 as Australian dollar, British pound and euro depreciated against the U.S. dollar relative to the prior year.

Brookfield Infrastructure 129

5.B    LIQUIDITY AND CAPITAL RESOURCES

The nature of our asset base and the quality of our associated cash flows enable us to maintain a stable and low cost capital structure. We attempt to maintain sufficient financial liquidity at all times so that we are able to participate in attractive opportunities as they arise, better withstand sudden adverse changes in economic circumstances and maintain our distributions to unitholders. Our principal sources of liquidity are cash flows from our operations, undrawn credit facilities and access to public and private capital markets. We also structure the ownership of our assets to enhance our ability to monetize them to provide additional liquidity, if necessary. In certain instances, subsidiaries may be subject to limitations on their ability to declare and pay dividends to our partnership. However, no significant limitations existed at December 31, 2017 and 2016.

Our group-wide liquidity at December 31, 2017 was $2,865 million and was comprised of the following:

	As of
US$ MILLIONS	December 31, 2017			December 31, 2016
Corporate cash and cash equivalents	$	205		$	549
Committed corporate credit facility	1,975			1,975
Subordinate corporate credit facility	500			500
Draws under corporate credit facility	(789		)	—
Commitments under corporate credit facility	(47		)	(46		)
Proportionate cash retained in businesses	392			283
Proportionate availability under subsidiary credit facilities	629			634
Group-wide liquidity	$	2,865		$	3,895

At December 31, 2017, we believe that group-wide liquidity is sufficient to meet Brookfield Infrastructure’s present requirements. We finished the year with group-wide liquidity of approximately $2,865 million, a decrease from $3,895 million at December 31, 2016 primarily as a result of funds deployed for acquisitions and growth capital expenditures offset by capital raised during the year. At the corporate level, we ended the year with $1,844 million of liquidity, a decrease of $1,134 million compared to the prior year.

130 Brookfield Infrastructure

We finance our assets principally at the operating company level with debt that generally has long-term maturities, few restrictive covenants and no recourse to either Brookfield Infrastructure or our other operations. On a proportionate basis as of December 31, 2017, scheduled principal repayments over the next five years are as follows:

US$ MILLIONS	Average Term (years)	2018			2019			2020			2021			2022			Beyond			Total
Recourse borrowings
Corporate borrowings	4	$	99		$	—		$	298		$	—		$	990		$	557		$	1,944
Total recourse borrowings	4	99			—			298			—			990			557			1,944
Non-recourse borrowings(1)
Utilities
Regulated Distribution	4	—			62			165			321			111			407			1,066
Regulated Transmission	10	—			—			1			1			222			1,204			1,428
Regulated Terminal	11	62			7			11			6			6			745			837
	8	62			69			177			328			339			2,356			3,331
Transport
Rail	6	17			23			112			122			182			656			1,112
Toll Roads	9	176			158			88			195			228			624			1,469
Ports	3	52			111			237			62			12			59			533
	7	245			292			437			379			422			1,339			3,114
Energy
Energy Transmission & Storage	9	77			86			7			—			350			579			1,099
District Energy	12	2			2			46			3			3			214			270
	9	79			88			53			3			353			793			1,369
Communications Infrastructure
Telecommunications Infrastructure	6	—			—			112			—			152			203			467
	6	—			—			112			—			152			203			467
Total non-recourse borrowings(1)	8	386			449			779			710			1,266			4,691			8,281
Total borrowings(2)	7	$	485		$	449		$	1,077		$	710		$	2,256		$	5,248		$	10,225
Cash retained in businesses
Utilities																				$	79
Transport																				240
Energy																				41
Communications Infrastructure																				32
Corporate																				205
Total cash retained																				$	597
Net debt
Utilities																				$	3,252
Transport																				2,874
Energy																				1,328
Communications Infrastructure																				435
Corporate																				1,739
Total net debt																				$	9,628
Total net debt		5		%	4		%	11		%	7		%	22		%	51		%	100		%

(1) Represents non-recourse debt to Brookfield Infrastructure as the holders have recourse only to the underlying operations.

(2) As of December 31, 2017, approximately 16% has been issued as floating rate debt. Brookfield Infrastructure and its subsidiaries have entered into interest rate swaps whereby the floating rate debt has been converted to fixed rate debt, effectively reducing floating rate debt maturities to approximately 15% of our total borrowings. Excluding working capital and capital expenditure facilities, floating rate debt maturities approximate 14% of our total borrowings, inclusive of the impact of interest rate swaps.

Brookfield Infrastructure 131

Our debt has an average term of 7 years. On a proportionate basis, our net debt-to-capitalization ratio as of December 31, 2017 was 56%. The weighted average cash interest rate is 4.6%for the overall business (December 31, 2016: 5.3%), in which our utilities, transport, energy, communications infrastructure and corporate segments were3.9%, 6.5%, 5.2%, 2.6%, and 3.5%, respectively (December 31, 2016: 4.0%, 7.4%, 7.0%, 2.6% and 3.4%, respectively).

Proportionate debt, a Non-IFRS measure to assess liquidity, can be reconciled to consolidated debt as follows:

	As of December 31
US$ MILLIONS	2017			2016
Consolidated debt	$	10,164		$	8,236
Add: proportionate share of debt of investments in associates:
Utilities	837			727
Transport	1,291			1,083
Energy	929			1,146
Communications Infrastructure	467			410
Less: borrowings attributable to non-controlling interest	(3,028		)	(2,619		)
Premium on debt and cross currency swaps	(435		)	(429		)
Proportionate debt	$	10,225		$	8,554

FINANCIAL INSTRUMENTS

Foreign Currency Hedging Strategy

To the extent that we believe it is economic to do so, our strategy is to hedge a portion of our equity investments and/or cash flows exposed to foreign currencies. The following key principles form the basis of our foreign currency hedging strategy:

• We leverage any natural hedges that may exist within our operations

• We utilize local currency debt financing to the extent possible

• We may utilize derivative contracts to the extent that natural hedges are insufficient

The following table presents our hedged position in foreign currencies as of December 31, 2017:

	Net Investment Hedges
US$ MILLIONS	USD		AUD			GBP			BRL			CLP			CAD			EUR			COP			PEN			INR
Equity Investment—US$	$	355	$	1,512		$	1,158		$	3,336		$	79		$	(497	)	$	836		$	66		$	121		$	38
FX contracts—US$	3,665		(1,512		)	(1,158		)	—			—			(159		)	(836		)	—			—			—
Net unhedged—US$	$	4,020	$	—		$	—		$	3,336		$	79		$	(656	)	$	—		$	66		$	121		$	38
% of equity investment hedged	N/A		100		%	100		%	—		%	—		%	N/A			100		%	—		%	—		%	—		%

At December 31, 2017, we had hedges in place to convert a total of 57% of our net equity investment to U.S. dollars. For the 12 months ended December 31, 2017, we recorded losses in other comprehensive income of $266 million related to these contracts (2016: gains of $169 million).

For additional information, see Note 6, “Fair Value of Financial Instruments”, Note 33, “Derivative Financial Instruments” and Note 34, “Financial Risk Management” in our financial statements included in this annual report on Form 20-F.

132 Brookfield Infrastructure

OTHER MARKET RISKS

Inflation Risk

Certain of our subsidiaries and associates are subject to inflation risk. Most significantly, our Chilean electricity transmission operations and a portion of our toll road operations in Chile are subject to inflation risk as these debt portfolios are denominated in Unidad de Fomento which is an inflation indexed Chilean peso monetary unit that is set daily, on the basis of the prior month’s inflation rate. However, we believe this is offset by the nature of our revenues which are in large part indexed to Chilean inflation.

Commodity Risk

Some of our operations are critically linked to the transport or production of key commodities. For example, in the long-term, our Australian regulated terminal operation relies on demand for coal exports, our Australian rail operation relies on demand for iron ore exports and our North American natural gas transmission operation relies on demand for natural gas and benefits from higher gas prices. While we endeavour to protect against short to medium term commodity demand risk wherever possible by structuring our contracts in a way that minimizes volume risk (e.g. minimum guaranteed volumes and ‘take-or-pay’ arrangements), these contract terms are not always able to be achieved, and in any event, the contract terms are finite and may include suspension or termination rights in favour of the customer. Accordingly, a long-term and sustained downturn in the demand for or price of a key commodity linked to one of our operations may have a material adverse impact on the financial performance or growth prospects of that particular operation, notwithstanding the use of take-or-pay contracts wherever possible. See Item 4.B “Business Overview” for more information.

Revenues from our South American regulated transmission operation are adjusted by a multi-factor inflation index that is designed to approximate changes in prices of the underlying components of the replacement cost of our transmission system. See Item 4.B “Business Overview”. Due to the construction of the system, metals, such as aluminum, are a material percentage of replacement cost. Thus, changes in the price of these metals will impact our revenues.

CAPITAL REINVESTMENT

We fund growth capital expenditures with cash flow generated from operations, supplemented by non-recourse debt sized to investment grade coverage and covenant thresholds. This is designed to ensure that our investments have stable capital structures supported by a substantial level of equity and that cash flows at the asset level can be remitted freely to the Partnership. This strategy also underpins our investment grade profile.

To fund large scale development projects and acquisitions, we will evaluate a variety of capital sources including proceeds from selling mature businesses, in addition to raising money in the capital markets through equity, debt and preferred share issuances. Furthermore, the Partnership has a $1.975 billion committed revolving credit facility available for investments and acquisitions, as well as funding the equity component of organic growth initiatives. The facility is intended, and has historically been used, as a bridge to a long-term financing strategy rather than a permanent source of capital.

Brookfield Infrastructure 133

The following table reconciles changes in our proportionate cash for the year:

	Year ended December 31
US$ MILLIONS	2017			2016			2015
Funds from operations (FFO)	$	1,170		$	944		$	808
Maintenance capital	(229		)	(173		)	(136		)
Funds available for distribution (AFFO)	941			771			672
Distributions paid	(794		)	(628		)	(546		)
Funds available for reinvestment	147			143			126
Growth capital expenditures	(893		)	(843		)	(597		)
Debt funding of growth capex	473			460			364
Non-recourse debt (repayments) issuances	(118		)	33			(243		)
New investments, net of disposals	(1,902		)	(159		)	(1,645		)
Draws (repayments) on corporate credit facility	789			(407		)	161
Partnership unit issuances	992			749			865
Proceeds from debt issuances	129			—			738
Proceeds from preferred unit issuances	220			186			189
Changes in working capital and other	(72		)	127			(112		)
Change in proportionate cash	(235		)	289			(154		)
Opening, proportionate cash	832			543			697
Closing, proportionate cash	$	597		$	832		$	543

We present cash flows generated by our businesses on a proportionate basis as over 40% of our FFO is generated by investments that are not consolidated in our financial statements. The Partnership participates in arrangements such as joint ventures or consortiums which provide it with access to partners with local strategic expertise and substantial amounts of capital. When investing in such arrangements, which are not consolidated for financial statement purposes, the Partnership nevertheless maintains joint control or significant influence over the business, and is therefore, not a passive investor. We structure governance arrangements to require each of our businesses to distribute all available cash (which is generally defined as cash on hand less any amounts reserved for committed growth projects as approved by the investment’s Board of Directors), ensuring that any decision to not distribute all available cash flow requires our express consent. Consequently, the Partnership has access to operating cash flows generated by all of our businesses, including joint ventures and any non-consolidated investments.

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The following table highlights the significance of operating cash flow generated from investments which are not consolidated in our financial statements and reconciles consolidated cash flow from operations to AFFO for the last three years:

	Year ended December 31
US$ MILLIONS	2017			2016			2015
Cash from operating activities	$	1,481		$	753		$	632
Add: FFO from associates and joint ventures	584			454			341
Remove:
Distributions received from associates and joint ventures	(66		)	(46		)	(87		)
Cash from operating activities attributable to non-controlling interests(1)	(840		)	(231		)	(149		)
	1,159			930			737
Less: Maintenance capital expenditures	(229		)	(173		)	(136		)
Changes in working capital and other items	11			14			71
AFFO(2)	$	941		$	771		$	672

(1) By removing cash from operating activities attributable to non-controlling interests, the partnership is able to present AFFO attributable to the partnership. We believe our proportionate financial information, when read in conjunction with the partnership’s reported results under IFRS, provides the most meaningful assessment of how our operations are performing. Please refer to the discussion of the limitations of proportional results as an analytical tool within the “Reconciliation of Non-IFRS Financial Measures” section on page 115.

(2) The most-closely related IFRS measure to AFFO is net income. However, occasionally we believe an alternative reconciliation can be useful and have therefore provided this reconciliation of consolidated cash flow from operations to AFFO. Please see the “Reconciliation of Non-IFRS Financial Measures” section on page 115 for a reconciliation of AFFO to net income.

From a treasury management perspective, the Partnership manages its cash reserves with a view to minimizing foreign exchange and administrative costs, as well as enhancing our ability to secure asset level debt financing. While capital is primarily raised at the corporate level to fund the equity component of organic growth capital expenditures, actual funding of projects may be executed by injecting cash into subsidiaries or utilizing operating cash flow generated and retained by the business. Importantly, the physical movement of cash has no relevance on Brookfield Infrastructure’s ability to fund capital expenditures or make distributions.

The following table summarizes the sources of capital used to fund the Partnership’s acquisitions and growth capital expenditures during the years ended December 31, 2017, 2016 and 2015:

	Year ended December 31
US$ MILLIONS	2017		2016			2015
Capital deployed in new investments	$	1,902	$	1,476		$	1,673
Growth capital expenditures (net of non-recourse debt financing)	420		383			233
	2,322		1,859			1,906
Total capital market activity
Equity issuance	992		749			865
Preferred units issuance	220		186			189
Corporate debt issuance	129		—			738
	1,341		935			1,792
Proceeds from asset sales	—		1,317			28
	1,341		2,252			1,820
Net funding from retained cash flows and credit facility draws	$	981	$	(393	)	$	86

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Over the last three years, our Partnership has deployed over $6.1 billion in acquisitions and organic growth initiatives of which $5.4 billion has been funded through capital market issuances and proceeds from capital recycling and the remaining $0.7 billion predominantly through operating cash flows retained in the business in addition to draws on our corporate revolving credit facility. Over the last three years, the Partnership has generated and retained $0.4 billion of operating cash flows which represented approximately 15% of our funds from operations generated during the same period.

DISTRIBUTION POLICY

Our distributions are underpinned by stable, highly regulated and contracted cash flows generated from operations. The Partnership’s objective is to pay a distribution that is sustainable on a long-term basis. The Partnership has set its target payout ratio target at 60-70% of funds from operations. In sizing what we believe to be a conservative payout ratio, we typically retain approximately 15-20% of AFFO that we utilize to fund some or all of our internally funded growth capital expenditures.

The following table presents the Partnership’s payout ratios over the past three years:

	Year ended December 31
US$ MILLIONS	2017			2016			2015
Funds from operations (FFO)	$	1,170		$	944		$	808
Adjusted funds from operations (AFFO)	941			771			672
Distributions (Limited partner, preferred and incentive distributions)	794			628			546
FFO payout ratio	68		%	67		%	68		%
AFFO payout ratio	84		%	81		%	81		%

The Partnership’s annual distribution is reviewed with the Board of Directors in the first quarter of each year giving consideration to the following:

• The results from the prior year as well as the budget for the upcoming year and the 5-year business plan based on the Partnership’s share of funds from operations generated by our assets

• The Partnership’s group-wide liquidity and its ability to fund committed capital investments

CAPITAL EXPENDITURES

Due to the capital-intensive nature of our Partnership’s asset base, ongoing capital investment is required for additions and enhancements, life-cycle maintenance and repair of plant and equipment related to our operations. Our Partnership reviews all capital expenditures and classifies them in one of the two following categories:

i) Growth capital expenditures: capital outlays underpinned by incremental revenues that will enhance our Partnerships’ returns. These projects are eligible for inclusion in the rate base of our utilities segment, or they are meant to add capacity to further expand our existing infrastructure networks in our transport, energy and communication infrastructure operations;

ii) Maintenance capital expenditures: required capital outlays to maintain the current operating state and reliability of the system while ensuring regulatory and safety requirements are upheld

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We manage separate review and approval processes for each of the two categories of capital expenditures. Growth capital expenditures are underwritten in isolation and must meet our Partnership’s target after-tax equity return threshold of 12-15%. Projects that meet these return targets are presented to the Capital Expenditure Committee which comprises senior personnel of the General Partner of our Partnership. The committee reviews proposed project plans considering the target returns and funding plans, in addition to analyzing the various execution risks associated with these projects. Once a project receives approval from the Capital Expenditure Committee, it is generally added to the backlog.

Maintenance capital expenditures follow a different, though equally robust process, as failure to make necessary investment to maintain our operations could impair the ability of our businesses to serve our customer base or continue existing operations. Firstly, the operations teams involved with a particular business performs a detailed review of all planned and proposed maintenance capital expenditures during the annual budgeting process. These plans are reviewed in the context of the business’s maintenance capital approach that is agreed upon with the Partnership at the time of acquisition and take into account drivers of performance that include public and worker health and safety, environmental and regulatory compliance, system reliability and integrity. Maintenance capital projects that receive approval at the asset level are then presented to the Partnership’s corporate asset management teams that are responsible for overseeing the Partnership’s operations, and have ample experience in managing utility, transport, energy and communications infrastructure assets. Through an iterative process with the companies’ senior operating executives, the plan is refined through a comprehensive review including prioritization of non-discretionary projects and comparisons to industry benchmarks. Once agreed, maintenance capital expenditure plans are approved and form part of the annual and five-year business plans that are presented to the Partnership’s senior executive team. Once approved, these maintenance plans are executed on in the following year and performance relative to these plans is closely monitored by both the operations and asset management teams.

In addition to the various levels of internal reviews, our Partnership engages a reputable, globally recognized engineering services firm annually to perform an independent review of its overall approach to maintenance capital expenditures and detailed capital program. Each year the engineering services firm will review a portion of the portfolio, covering all assets on a three-year rotating basis. For each asset under review in a given year, the engineering services firm will review the historical and forecasted spend against industry standards, regulatory requirements or other benchmarking data, and determine the reasonableness of the maintenance capex program based on the nature of the business and the age and condition of the assets. We have also engaged a Big 4 accounting firm to review the findings of the report provided by the engineering services firm and to assess the control activities around our process for compiling the annual sustaining maintenance capital expenditure ranges by segment.

In 2017, reviews were completed at a number of operations that together make up approximately 60% of our Partnership’s FFO. The results from both engagements conducted by the firms confirm that our stated ranges of annual sustaining maintenance capital expenditures are reasonable and in-line with industry standard for assets of a similar nature. In the next year, the Partnership intends to complete reviews at the remainder of its existing operations, and for newly acquired businesses it will endeavor to have reviews conducted within 2-3 years of acquisition.

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The following table presents the components of growth capital expenditures by operating segment:

	Year ended December 31
US$ MILLIONS	2017		2016		2015
Growth capital expenditures by segment
Utilities	$	449	$	428	$	258
Transport	326		319		297
Energy	76		67		27
Communications Infrastructure	42		29		15
	$	893	$	843	$	597

Growth capital expenditures for the year ended December 31, 2017 were $893 million, an increase of $50 million or 6% versus 2016. The increase in growth capital expenditures is associated with higher connections activity and the investment in a smart meter program at our U.K. regulated distribution business, increased ownership in our South American toll road business, and capital deployed to expand our North American natural gas transmission network. These balances reflect an appreciation in most foreign currencies versus the U.S. dollar.

The following table presents maintenance capital expenditures by operating segment:

	Annual Ongoing Estimated Maintenance Capex				Year ended December 31
US$ MILLIONS	Low		High		2017		2016		2015
Maintenance capital expenditures by segment
Utilities	$	15	$	20	$	15	$	15	$	13
Transport	125		135		133		88		72
Energy	60		70		70		61		45
Communications Infrastructure	10		15		11		9		6
	$	210	$	240	$	229	$	173	$	136

Maintenance capital expenditures for the year ended December 31, 2017 were $229 million, an increase of $56 million relative to the prior year. The increase in maintenance capital expenditures is associated with spending at new investments acquired during the year, an increased ownership interest in our Brazilian toll road operation and the impact of an appreciation in most foreign currencies versus the U.S. dollar. Our Partnership estimates that annual sustaining maintenance capital for our current business is in the range of $210-$240 million. Our Partnership leverages industry data and benchmarks provided by a global engineering services firm to determine the appropriate maintenance capital ranges as disclosed above.

REVIEW OF CONSOLIDATED STATEMENTS OF CASH FLOWS

The following table summarizes the consolidated statements of cash flows for the years ended December 31, 2017, 2016, and 2015.

US$ MILLIONS Summary Statements of Operating Results	Year ended December 31
	2017			2016			2015
Cash from operating activities	$	1,481		$	753		$	632
Cash used by investing activities	(5,721		)	(1,058		)	(2,346		)
Cash from financing activities	3,814			899			1,764

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This statement reflects activities within our consolidated operations and therefore excludes activities within non-consolidated entities.

Cash from operating activities

Cash from operating activities totaled $1.5 billion in 2017, an increase of $0.7 billion from 2016. The increase is primarily due to acquisitions completed during the year which contributed $0.8 billion of additional operating cash flows, and organic growth from our existing operations which provided a further $0.1 billion. These increases were partially offset by non-recurring gains recognized in the prior period within our transport segment of $0.2 billion.

Cash used by investing activities

Cash used by investing activities increased by $4.7 billion to $5.7 billion in 2017. Of the increase, $3.8 billion relates to incremental capital deployed in acquisitions, most notably the acquisition of our Brazilian regulated gas transmission operation. Additionally, there was a decrease in proceeds from the sale of financial assets of $0.6 billion and additional cash used to fund hedge settlements of $0.3 billion.

Cash from financing activities

Our partnership generated $3.8 billion of cash flows from financing activities during 2017, as compared to $0.9 billion in 2016. The increase was due to $1.4 billion of additional capital provided by non-controlling interests and $1.7 billion in incremental corporate issuances completed in 2017. These increases were partially offset by $0.2 billion of additional distributions paid to unitholders.

PARTNERSHIP CAPITAL

Our partnership’s capital structure is comprised of three classes of partnership units: our units, preferred units and general partnership units. Our units entitle the holder to their proportionate share of distributions. Preferred units entitle the holder to cumulative preferential cash distributions in accordance with their terms. General partnership units entitle the holder the right to govern our financial and operating policies. Our partnership controls the Holding LP, which in turn is the indirect shareholder of our operating entities, through a 70.2% managing general partner interest. As of December 31, 2017, Brookfield holds a 29.4% interest in the Holding LP through Redeemable Partnership Units and an additional 0.4% interest in the Holding LP through Special General Partner Units. The Redeemable Partnership Units, at the request of the holder, require the Holding LP to redeem all or a portion of the holder’s units for cash in an amount equal to the market value of our units multiplied by the number of units to be redeemed. This right is subject to our partnership’s right of first refusal which entitles it, at its sole discretion, to elect to acquire any Redeemable Partnership Unit so presented to the Holding LP in exchange for one of our partnership’s units (subject to certain customary adjustments). Both the units issued by our partnership and the Redeemable Partnership Units issued by the Holding LP have the same economic attributes in all respects, except for the redemption right described above. The Redeemable Partnership Units participate in earnings and distributions on a per unit basis equivalent to the per unit participation of the units of our partnership. Our partnership reflects the Redeemable Partnership Units issued to Brookfield by the Holding LP as a separate component of non-controlling interest, within consolidated equity, as Brookfield Infrastructure can, at its sole discretion, elect to satisfy a redemption request by Brookfield of the Redeemable Partnership Units by issuing an equal number of units. Based on the number of units outstanding as of December 31, 2017, Brookfield’s aggregate limited partnership interest in our partnership would be approximately 29.6% if Brookfield fully exercised its redemption right and our partnership fully exercised its right of first refusal.

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Brookfield’s 0.4% interest in the Holding LP through Special General Partner Units entitles it to incentive distribution rights which are based on the amount by which quarterly distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed specified target levels. To the extent distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed $0.203 per quarter, the incentive distribution rights entitle Infrastructure Special LP to 15% of incremental distributions above this threshold. To the extent that distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed $0.22 per quarter, the incentive distribution rights entitle Infrastructure Special LP to 25% of incremental distributions above this threshold. During the year ended December 31, 2017, the Holding LP paid incentive distributions of $113 million (2016: $80 million, 2015: $64 million). Infrastructure Special LP may elect to reinvest any of the incentive distributions from its Special General Partner Units in additional Redeemable Partnership Units.

On November 7, 2017, we announced that we renewed our normal course issuer bid for outstanding units and our Class A Preferred Units (other than Series 9 Preferred Units). Under the normal course issuer bid, the board of directors of our General Partner authorized us to repurchase up to 5% of the issued and outstanding units, or 13,823,709 units, and up to 10% of the public float of each series of the Class A Preferred Units (other than Series 9 Preferred Units) that were issued and outstanding. Repurchases were authorized to commence on November 10, 2017 and will terminate on November 9, 2018, or earlier should we complete our repurchases prior to such date. All purchases will be made through the facilities of the TSX or the NYSE, and all units and Class A Preferred Units acquired under the normal course issuer bid will be cancelled.

In September 2017, we issued approximately 16.6 million units at $42 per unit in public offerings in the U.S. and Canada. In total, $700 million of gross proceeds were raised through the issuance and $28 million in equity issuance costs were incurred. Concurrently, we issued 7.4 million Redeemable Partnership Units at the public offering price, net of commissions, to Brookfield in a private placement for additional proceeds of $300 million. After giving effect to the public offering and concurrent private placement to Brookfield, our partnership’s ownership interest in the Holding LP decreased slightly without resulting in a loss of control. The difference between the proportionate amount by which the non-controlling interest in Holding LP was increased and the proceeds of the Redeemable Partnership Unit offering resulted in a gain of $6 million that was recognized directly in equity.

On September 14, 2016, we completed a three-for-two split of our units by way of a subdivision of units, whereby unitholders received an additional one-half of a unit for each unit held, resulting in the issuance of approximately 115 million additional units. Any fractional units otherwise issuable to registered holders as a result of the Unit Split were rounded up to the nearest whole unit. Our preferred units were not affected by the Unit Split. The Managing General Partner Units, Special General Partner Units and Redeemable Partnership Units of the Holding LP were concurrently split to reflect the Unit Split. All historical per unit disclosures have been adjusted to effect for the change in units due to the Unit Split.

Our partnership has established a distribution reinvestment plan (“Plan”), that allows eligible holders of our units to purchase additional units by reinvesting their cash distributions. Under the Plan, units are acquired at a price per unit calculated by reference to the volume weighted average of the trading price for our units on the NYSE for the five trading days immediately preceding the relevant distribution date. During the period, our partnership issued 494,855 units (2016: 791,183 units).

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The total number of partnership units in the Holding LP outstanding was comprised of the following:

	As of
	December 31, 2017	December 31, 2016
Redeemable Partnership Units, held by Brookfield	115,824,992	108,401,992
Special General Partner Units	1,600,410	1,600,410
Managing General Partner Units	276,572,900	259,450,045
Total	393,998,302	369,452,447

During 2017 and 2016, our outstanding issued Redeemable Partnership Units changed as follows:

	2017			2016
MILLIONS, EXCEPT UNIT INFORMATION	Book Value		Units	Book Value		Units
Outstanding at beginning of year	$	1,778	108,401,992	$	1,528	100,262,992
Units issued	300		7,423,000	250		8,139,000
Outstanding at end of year	$	2,078	115,824,992	$	1,778	108,401,992

During 2017 and 2016, our outstanding issued Special General Partner Units changed as follows:

	2017			2016
MILLIONS, EXCEPT UNIT INFORMATION	Book Value		Units	Book Value		Units
Outstanding at beginning of year	$	19	1,600,410	$	19	1,600,410
Outstanding at end of year	$	19	1,600,410	$	19	1,600,410

During 2017 and 2016, our outstanding issued Managing General Partner Units changed as follows:

	2017			2016
MILLIONS, EXCEPT UNIT INFORMATION	Book Value		Units	Book Value			Units
Outstanding at beginning of year	$	4,215	259,450,045	$	3,716		243,247,458
Units issued	692		17,122,855	505			16,418,289
Units purchased and cancelled	—		—	(6		)	(215,702	)
Outstanding at end of year	$	4,907	276,572,900	$	4,215		259,450,045

The total number of preferred partnership units in the Holding LP outstanding was comprised of the following:

	As of
	December 31, 2017	December 31, 2016
Holding LP Series 1 Preferred Units	5,000,000	5,000,000
Holding LP Series 3 Preferred Units	5,000,000	5,000,000
Holding LP Series 5 Preferred Units	10,000,000	10,000,000
Holding LP Series 7 Preferred Units	12,000,000	—
Total	32,000,000	20,000,000

Our preferred units were not affected by the Unit Split.

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During 2017 and 2016, our outstanding issued Preferred Units changed as follows:

	2017			2016
MILLIONS, EXCEPT UNIT INFORMATION	Book Value		Units	Book Value		Units
Outstanding at beginning of year	$	375	20,000,000	$	189	10,000,000
Units issued	220		12,000,000	186		10,000,000
Outstanding at end of year	$	595	32,000,000	$	375	20,000,000

In January 2017, our Limited Partnership Agreement was amended to create the Series 7 Preferred Units and Series 8 Preferred Units. The limited partnership agreement of the Holding LP was also amended in January 2017 to create the Holding LP Series 7 Preferred Units and Holding LP Series 8 Preferred Units with terms substantially mirroring the Series 7 Preferred Units and Series 8 Preferred Units, respectively. Our Partnership issued 12 million Series 7 Preferred Units at an offering price of C$25 per Series 7 Preferred Unit under its shelf registration in Canada and acquired 12 million Holding LP Series 8 Preferred Units at the offering price.

Subsequent to year end, on January 23, 2018, our partnership issued 8 million Series 9 Preferred Units at C$25 per unit with a quarterly fixed distribution at a rate of 5.00% annually for the initial period ending March 31, 2023. In total, C$200 million or $161 million of gross proceeds were raised, $4 million in underwriting costs were incurred and less than $1 million in issuance costs were incurred.

5.C    RESEARCH AND DEVELOPMENT

Not applicable.

5.D    TREND INFORMATION

We seek to increase the cash flows from our operations through acquisitions and organic growth opportunities as described below. In particular, we focus on consortiums and partnerships where Brookfield has sufficient influence or control to deploy our operations oriented approach and Brookfield has a strong track record of leading such transactions, which provides the opportunity to expand cash flows through acquisitions. In addition, we have a substantial capital backlog to be commissioned in the next two to three years and we believe that notwithstanding increasing political uncertainty, most of our markets have favourable outlooks, which we believe provides an opportunity for increased organic growth in cash flows. Our beliefs as to the opportunities for our partnership to increase cash flows through acquisitions and organic growth are based on assumptions about our business and markets that management believes are reasonable in the circumstances. There can be no assurance as to growth in or cash flows, or capital deployed for acquisitions or organic growth. See page 4, “Forward-Looking Statements”.

We believe our global scale and best-in-class operating groups provide us with a unique competitive advantage as we are able to efficiently allocate capital around the world toward those sectors and geographies where we see the greatest returns. We actively recycle assets on our balance sheet as they mature and reinvest the proceeds into higher yielding investment strategies, further enhancing returns.

Given the small amount of new infrastructure development that occurred over the last decade compared to the infrastructure requirements of the regions in which we operate, we see an opportunity to deploy significant capital in the near term in response to demand we are seeing in our major markets. Specifically, we plan to commission over $650 million of our capital backlog over the next 12-18 months and continue the build-out of our gas and electricity transmission businesses in Brazil.

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To fund future growth, we will also be focused on executing the next phase of our capital recycling program. With the maturing profile of a number of our businesses, proceeds from asset sales are expected to generate between $1.5 billion and $2.0 billion over the next few years.

Below are trends that we anticipate will generate meaningful investment opportunities for our business:

• Data infrastructure - Data is the fastest growing commodity in the world, with global usage expected to grow exponentially for the foreseeable future. This growth is driving the need for massive investment in the networks that transmit and store data. We have already begun making investments in data highways, namely fibre-to-the-home networks, and telecom towers, and are pursuing additional opportunities in the sector.

• Municipal infrastructure - Trillions of dollars have been committed globally to building ‘smart cities’. These are communities that are more connected, efficient and environmentally friendly - a top priority for many major municipal governments. With the number of people living in urban areas anticipated to increase from 55% to 70% by 2020, solutions for reducing pollution and congestion are of critical importance. We believe the largest opportunities are within our district energy business, where we already have operations in 11 North American cities, and energy-efficient systems such as smart meters, an area where we have already begun deploying capital in the U.K.

• Water infrastructure - The spending gap for capital needed to support critical and aging water infrastructure is predicted to grow to approximately $7 trillion globally by 2050. We see several opportunities to invest in water supply (desalination plants), water recycling (greywater and purification facilities), and transportation systems for uses such as irrigation.

• Investment in Asia - This is the world’s largest and fastest-growing market, with current GDP growth of 5.7%. The need for capital to fund the buildout and maintenance of critical infrastructure exists across all sectors where we invest. We plan to leverage Brookfield’s established presence in Asia and expect to make this region a larger part of our capital allocation in the future.

The current outlook for Brookfield Infrastructure is favourable. We are operating in a global economy that is experiencing strong growth and there is an exceptional need for capital to fund investment projects. We are utilizing our competitive strength of size, global footprint, operating capabilities and access to capital to execute on accretive projects. We believe there are opportunities to buy for value in both developed and emerging economies.

Our primary focus for the upcoming year is to advance our pipeline of communication infrastructure and energy transactions that are well progressed. We also remain focused on the integration plans at our Brazilian regulated gas transmission business and executing on our organic capital project initiatives.

5.E    OFF-BALANCE SHEET ARRANGEMENTS

We do not have any off-balance sheet arrangements that have or are reasonably likely to have a material current or future effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources that is material to investors.

We, on behalf of our subsidiaries, provide letters of credit, which include, but are not limited to, guarantees for debt service reserves, capital reserves, construction completion and performance. As at December 31, 2017, letters of credit issued by our subsidiaries amounted to $106 million (December 31, 2016: $46 million). Subsequent to December 31, 2017 we cancelled letters of credit issued by our subsidiaries which amounted to $59 million.

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In the normal course of operations, we execute agreements that provide for indemnification and guarantees to third parties in transactions such as business dispositions and acquisitions, construction projects, capital projects, and sales and purchases of assets and services. We have also agreed to indemnify our directors and certain of our officers and employees. The nature of substantially all of the indemnification undertakings prevents us from making a reasonable estimate of the maximum potential amount that we could be required to pay third parties, as many of the agreements do not specify a maximum amount and the amounts are dependent upon the outcome of future contingent events, the nature and likelihood of which cannot be determined at this time. Historically, we have made no significant payments under such indemnification agreements.

5.F    TABULAR DISCLOSURE OF CONTRACTUAL OBLIGATIONS

The table below outlines Brookfield Infrastructure’s contractual obligations as at December 31, 2017:

December 31, 2017 US$ MILLIONS	Less than 1 year		1-2 years		2-5 years		5+ years		Total contractual cash flows
Accounts payable and other liabilities	$	646	$	45	$	59	$	293	$	1,043
Corporate borrowing	99		—		1,445		557		2,101
Non-Recourse borrowing	372		571		2,043		5,101		8,087
Financial liabilities	237		58		930		88		1,313
Interest Expense:
Corporate borrowing	49		47		106		25		227
Non-Recourse borrowing	381		348		864		1,343		2,936

In addition, pursuant to the Master Services Agreement, on a quarterly basis we pay a base management fee to Brookfield equal to 0.3125% (1.25% annually) of the market value of our partnership plus net recourse debt. This fee is estimated to be approximately $256 million per year based on our market capitalization and unit price as at December 31, 2017.

An integral part of our partnership’s strategy is to participate with institutional investors in Brookfield-sponsored private infrastructure funds that target acquisitions that suit Brookfield Infrastructure’s profile. In the normal course of business, our partnership has made commitments to Brookfield-sponsored private infrastructure funds to participate in these target acquisitions in the future, if and when identified.

5.G    SAFE HARBOUR

See “Forward-Looking Statements” in the forepart of this Form 20-F.

ITEM 6.    DIRECTORS AND SENIOR MANAGEMENT

6.A    DIRECTORS AND SENIOR MANAGEMENT

Board of Directors of our General Partner

As required by law, our limited partnership agreement provides for the management and control of our partnership by a general partner rather than a board of directors and officers. Our General Partner serves as our partnership’s general partner and has a board of directors. Our General Partner has sole responsibility and authority for the central management and control of our partnership, which is exercised through its board of directors in Bermuda.

144 Brookfield Infrastructure

The following table presents certain information concerning the current board of directors of our General Partner as of the date of this annual report on Form 20-F:

Name and Municipality of Residence(1)	Age	Position	Principal Occupation
Derek Pannell(3) Saint John, Canada	71	Chair	Director
Jeffrey Blidner Toronto, Canada	69	Director	Senior Managing Partner of Brookfield Asset Management
William Cox Pembroke, Bermuda	55	Director	Business Executive
John Fees Lynchburg, Virginia	60	Director	Executive Chairman of BWXT
Arthur Jacobson, Jr.(2) Malibu, California	55	Director	Director
John Mullen Melbourne, Australia	62	Director	Director, Chairman of Telstra Corporation Limited
Anne Schaumburg(3) Short Hills, New Jersey	68	Director	Director
Danesh Varma(3) Kingston-Upon-Thames, England	68	Director	Chief Financial Officer, Anglesey Mining PLC, a mining company

(1) The business address for each of the directors is 73 Front Street, Hamilton, HM 12, Bermuda.

(2) Member of the nominating and governance committee. Arthur Jacobson is the chair of the nominating and governance committee.

(3) Member of the audit committee. Anne Schaumburg is the chair of the audit committee. Danesh Varma is our audit committee financial expert.

In 2017, two of our directors, David Hamill and Rafael Miranda, stepped down as directors.

Set forth below is biographical information for our General Partner’s current directors.

Derek Pannell.   Derek has served as a director of our General Partner since June 15, 2007. Until April 2010, he was a Managing Partner of Brookfield Asset Management and prior to this he was the Chief Executive Officer of Noranda Inc. and Falconbridge Limited from June 2002 to October 2006. He also served as the President and Chief Operating Officer for Noranda Inc. between September 2001 and June 2002. Derek is a metallurgical engineer with over 42 years of experience in the mining and metals industry. He is former Chair of the Mining Association of Canada and board member of the International Council on Mining and Metals. Derek was a board member of Teck Resources Inc. until April 1, 2010 and African Barrick Gold until April 2013 and currently serves on the board of Agrium Inc. Derek is a professional engineer registered in Quebec and Peru and is an Associate of the Royal School of Mines and a Fellow of the Canadian Academy of Engineers. Derek holds a Bachelor of Science degree from Imperial College in London, England.

Jeffrey Blidner.   Jeffrey is a Senior Managing Partner of Brookfield Asset Management and is responsible for strategic planning and transaction execution. Jeffrey is Chief Executive Officer of Brookfield’s Private Funds Group, Chairman of Brookfield Renewable Partners and Chairman of Brookfield Business Partners. He also serves as a Director of Brookfield Asset Management, Brookfield Infrastructure Partners and Canary Wharf. Prior to joining Brookfield in 2000, Jeffrey was a senior partner at a Canadian law firm. Jeffrey’s practice focused on merchant banking transactions, public offerings, mergers and acquisitions, management buy-outs and private equity transactions. Jeffrey received his LLB from Osgoode Hall Law School and was called to the Bar in Ontario as a Gold Medalist.

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William Cox.   William joined as a director of our General Partners on November 3, 2016. He is the President and Chairman of Waterloo Properties in Bermuda; a fifth generation family owned business which operates real estate and retail investment companies in Bermuda. He has developed large scale, commercial projects in Bermuda and operates a successful group of retail operations. Will graduated from Saltus Grammar School, where he served as Chairman of the Board of Trustees and completed his education at Lynchburg College in Virginia.

John Fees.   John joined as a director of our General Partner on April 22, 2013. He is the Executive Chairman of BWXT, having assumed this role after completing the spin-off of The Babcock & Wilcox Enterprises to its shareholders. John is a 38 year industry veteran of McDermott International and its derivative companies, having started his career in 1979 in The Babcock & Wilcox Company. While CEO of McDermott International, the Babcock & Wilcox parent, John led the company and board through the process of the spin-off and established McDermott International and The Babcock & Wilcox Company as two independent, public companies. John also led the Babcock & Wilcox board through the spin-off of its power generation business into a new company, carrying the Babcock & Wilcox name, with the remaining company being renamed BWXT. John holds a Masters of Engineering Administration from George Washington University and a Bachelor of Science, Industrial Engineering, from the University of Pittsburgh

Arthur Jacobson, Jr.   Arthur has served as a director of our General Partner since November 27, 2007. He is a former Managing Director of Spear, Leeds Kellogg Specialists LLC (a division of Goldman Sachs Group Inc.) from 2001 to 2004. He was a partner of Benjamin Jacobson and Sons, LLC from 1987 to 2001. He was also a specialist on the NYSE for 16 years, from 1988 to 2004. Prior to that he was an account executive at Drexel Burnham Lambert Inc. from 1985 to 1987. Arthur holds a degree in business administration from the University of Southern California.

John Mullen.   John is a professional director and has extensive international transportation and logistics experience with more than two decades in senior positions with multinationals including most recently as Managing Director and Chief Executive Officer of Asciano Ltd from 2011 to 2016. His experience includes 10 years with the TNT Group - two years of those as its Chief Operating Officer. From 1991 to 1994, he held the position of Chief Executive Officer of TNT Express Worldwide. John joined Deutsche Post DHL Group in 1994, becoming Chief Executive Officer of DHL Express Asia Pacific in 2002 and joint Chief Executive Officer, DHL Express in 2005.  He was then Global Chief Executive Officer, DHL Express, from 2006 to 2009. John has been a non-executive Director of Telstra, an Australian telecommunications and media company, since July 2008, and is currently Chairman of Telstra and of Toll Group, a transport and logistics company owned by Japan Post. John holds a Bachelor of Science degree from the University of Surrey in the UK, is also a member of the Australian Graduate School of Management and a Councillor of the Australian National Maritime Museum.

Anne Schaumburg.   Anne has served as a director of our General Partner since November 3, 2008. She has been a member of the board of directors of NRG Energy, Inc., a power generation company listed on NYSE, since 2005. From 1984 until her retirement in 2002, Anne was with the Global Energy Group of Credit Suisse First Boston, where she last served as Managing Director. From 1979 to 1984, she was with the Utilities Group at Dean Witter Financial Services Group, where she last served as Managing Director. From 1971 to 1978, Anne was at First Boston Corporation in the Public Utilities Group. Anne is a graduate of the City University of New York.

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Danesh Varma.   Danesh has served as a director of our General Partner since June 15, 2007. He is the Chief Financial Officer and a director of Anglesey Mining PLC, Minco plc., and Conquest Resources Limited. He joined Minco plc and Conquest Resources Limited in 2006, and Anglesey Mining PLC in 2014. In addition to the above, Danesh joined Xterra Inc as their Chief Financial Officer in 2008. From 1999 to 2005, Danesh was a director at Dundee B Corp. Ltd. Prior to that, Danesh held a number of senior positions in the banking, corporate finance and accounting fields. Danesh holds a degree from Delhi University and is a Chartered Professional Accountant.

Additional Information About Directors and Officers

Until February 2011, CEO of the Service Provider, Mr. Sam Pollock was a director of Fraser Papers Inc. (“Fraser Papers”) an integrated specialty paper company that produces a broad range of specialty packaging and printing papers. On June 28, 2009, Fraser Papers and its subsidiaries filed for creditor protection under the Companies Creditors Arrangement Act (“CCAA”) in Canada and Chapter 15 of the U.S. Bankruptcy Code. In February 2011, the Ontario and Delaware courts overseeing these proceedings issued orders enabling the implementation of an amended plan of arrangement and compromise previously approved by Fraser Papers’ creditors, which was completed in May 2011.

Director of our General Partner, Mr. Danesh Varma, has acted as a director of various corporations in several jurisdictions around the world. He was a director and officer of American Resource Corporation Limited when it became subject to a cease trade order by the Ontario Securities Commission in June 2004 for failure to file its audited annual financial statements for the year ended December 31, 2003 and the first quarter interim unaudited financial statements for the period ended March 31, 2004. The cease trade order was lifted in June 2008.

Our Management

Our General Partner does not have any employees. Instead, members of Brookfield’s senior management and other individuals from Brookfield Asset Management’s global affiliates are drawn upon to fulfill the Service Provider’s obligations to provide us with management services under our Master Services Agreement. Brookfield currently has approximately 70,000 operating employees and over 700 investment professionals, worldwide. The following table presents certain information concerning the core senior management team that is principally responsible for our operations and their positions with the Service Provider as of the date of this annual report on Form 20-F:

Name	Age	Years of Experience in relevant industry or role	Years at Brookfield	Current Position with the Service Provider
Jeffrey Blidner	69	41	17	Senior Managing Partner
Sam Pollock	51	28	23	Chief Executive Officer
Bahir Manios	39	16	13	Chief Financial Officer

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Each of the members of this team has substantial deal origination and execution expertise, having put together numerous consortiums, partnerships and joint ventures for large complex transactions. Members of this team have also been integral in building and developing Brookfield’s utilities, transport, energy and communications infrastructure operations. Set forth below is biographical information for Messrs. Pollock and Manios, however, for biographical information regarding Mr. Blidner see Item 6.A “Directors and Senior Management—Board of Directors of our General Partner”:

Sam Pollock.   Sam is a Senior Managing Partner of Brookfield Asset Management and Chief Executive Officer of the Service Provider. Sam has also been a director of TWC Enterprises since 2008. Since 2006, Sam has led Brookfield’s expansion into the infrastructure sector and is responsible for the formulation and execution of the operating and investment strategy for Brookfield’s infrastructure business. Sam joined Brookfield Asset Management in 1994 and, prior to his current role, was broadly responsible for Brookfield’s investment initiatives acting as Brookfield Asset Management’s Chief Investment Officer. Sam is a Chartered Professional Accountant and holds a business degree from Queen’s University.

Bahir Manios.   Bahir is a Managing Partner of Brookfield Asset Management and the Chief Financial Officer of the Service Provider, where he has overall responsibility for corporate finance, reporting, tax, treasury and investor relations activities. Bahir joined Brookfield in 2004 and began his career at one of the big-four accounting firms, where he worked in the assurance and business advisory practice. A graduate of the School of Business and Economics at Wilfrid Laurier University, he is a member of the Canadian Institute of Chartered Accountants.

See also information contained in this annual report on Form 20-F under Item 6.C “Board Practices,” Item 3.D “Risk Factors—Risks Relating to our Relationship with Brookfield,” Item 6.A “Directors and Senior Management” and Item 7.B “Related Party Transactions.”

Our Master Services Agreement

The Service Recipients have entered into a Master Services Agreement pursuant to which the Service Provider has agreed to provide or arrange for other service providers to provide management and administration services to our partnership and the other Service Recipients. The operating entities are not a party to the Master Services Agreement.

The following is a summary of certain provisions of our Master Services Agreement and is qualified in its entirety by reference to all of the provisions of the agreement. Because this description is only a summary of the Master Services Agreement, it does not necessarily contain all of the information that you may find useful. We therefore urge you to review the Master Services Agreement in its entirety. Our Master Services Agreement is available electronically on the website of the SEC at www.sec.gov and is available to our unitholders and preferred unitholders as described under Item 10.C “Material Contracts” and Item 10.H “Documents on Display.”

Appointment of the Service Provider and Services Rendered

Under our Master Services Agreement, the Service Recipients have appointed the Service Provider, as the service provider, to provide the following services, or arrange for their provision by an appropriate service provider:

• causing or supervising the carrying out of all day-to-day management, secretarial, accounting, banking, treasury, administrative, liaison, representative, regulatory and reporting functions and obligations;

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• establishing and maintaining or supervising the establishment and maintenance of books and records;

• identifying, evaluating and recommending to the Service Recipients acquisitions or dispositions from time-to-time and, where requested to do so, assisting in negotiating the terms of such acquisitions or dispositions;

• recommending and, where requested to do so, assisting in the raising of funds whether by way of debt, equity or otherwise, including the preparation, review or distribution of any prospectus or offering memorandum in respect thereof and assisting with communications support in connection therewith;

• recommending to the Service Recipients suitable candidates to serve on the boards of directors or their equivalents of the operating entities;

• making recommendations with respect to the exercise of any voting rights to which the Service Recipients are entitled in respect of the operating entities;

• making recommendations with respect to the payment of dividends or other distributions by the Service Recipients, including distributions by our partnership to our unitholders;

• monitoring and/or oversight of the applicable Service Recipient’s accountants, legal counsel and other accounting, financial or legal advisors and technical, commercial, marketing and other independent experts, and managing litigation in which a Service Recipient is sued or commencing litigation after consulting with, and subject to the approval of, the relevant board of directors or its equivalent;

• attending to all matters necessary for any reorganization, bankruptcy proceedings, dissolution or winding up of a Service Recipient, subject to approval by the relevant board of directors or its equivalent;

• supervising the timely calculation and payment of taxes payable, and the filing of all tax returns due, by each Service Recipient;

• causing the Service Recipients’ annual consolidated financial statements and quarterly interim financial statements to be: (i) prepared in accordance with generally accepted accounting principles or other applicable accounting principles for review and audit at least to such extent and with such frequency as may be required by law or regulation; and (ii) submitted to the relevant board of directors or its equivalent for its prior approval;

• making recommendations in relation to and effecting the entry into insurance of each Service Recipient’s assets, together with other insurances against other risks, including directors and officers insurance as the relevant service provider and the relevant board of directors or its equivalent may from time to time agree;

• arranging for individuals to carry out the functions of principal executive, accounting and financial officers for our partnership only for purposes of applicable securities laws;

• providing individuals to act as senior officers of Service Recipients as agreed from time-to-time, subject to the approval of the relevant board of directors or its equivalent;

• advising the Service Recipients regarding the maintenance of compliance with applicable laws and other obligations; and

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• providing all such other services as may from time-to-time be agreed with the Service Recipients that are reasonably related to the Service Recipient’s day-to-day operations.

Notwithstanding the foregoing all investment advisory services (as defined in the Master Services Agreement) must be provided solely to the Holding LP.

The Service Provider’s activities are subject to the supervision of the board of directors or equivalent governing body of our General Partner and of each of the other Service Recipients, as applicable. The relevant governing body remains responsible for all investment and divestment decisions made by the Service Recipient.

Any Service Provider may, from time to time, appoint an affiliate of Brookfield to act as a new Service Provider under our Master Services Agreement, effective upon the execution of a joinder agreement by the new Service Provider.

Management Fee

Pursuant to the Master Services Agreement, on a quarterly basis, we pay a base management fee, to the Service Provider equal to 0.3125% (1.25% annually) of the market value of our partnership. For purposes of calculating the base management fee, the market value of our partnership is equal to the aggregate value of all our outstanding units (assuming full conversion of Brookfield’s limited partnership interests in Brookfield Infrastructure into units), preferred units and securities of the other Service Recipients that are not held by Brookfield Infrastructure, plus all outstanding third party debt with recourse to a Service Recipient, less all cash held by such entities.

The table below sets forth the management fees for the years ended December 31, 2017, 2016 and 2015, respectively.

	Year ended December 31
US$ MILLIONS	2017		2016		2015
Base management fee	$	230	$	158	$	126

To the extent that under any other arrangement we are obligated to pay a base management fee (directly or indirectly through an equivalent arrangement) to the Service Provider (or any affiliate) on a portion of our capital that is comparable to the base management fee, the base management fee payable for each quarter in respect thereof will be reduced on a dollar for dollar basis by our proportionate share of the comparable base management fee (or equivalent amount) under such other arrangement for that quarter. For example, in conjunction with the consortium arrangements in respect of our South American electricity transmission operations, we pay to Brookfield our pro rata share of base management fees paid by the consortium. Pursuant to the Master Services Agreement, the base management fees paid pursuant to the consortium arrangements are creditable against the management fee payable under the Master Services Agreement. The base management fee will not be reduced by the amount of any incentive distribution payable by any Service Recipient or operating entity to the Service Provider (or any other affiliate) (for which there is a separate credit mechanism under the Holding LP’s limited partnership agreement), or any other fees that are payable by any operating entity to Brookfield for financial advisory, operations and maintenance, development, operations management and other services. See Item 7.B “Related Party Transactions—Other Services” and Item 7.B “Related Party Transactions—Incentive Distributions.”

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Reimbursement of Expenses and Certain Taxes

We also reimburse the Service Provider for any out-of-pocket fees, costs and expenses incurred in the provision of the management and administration services. However, the Service Recipients are not required to reimburse the Service Provider for the salaries and other remuneration of its management, personnel or support staff who carry out any services or functions for such Service Recipients or overhead for such persons.

The relevant Service Recipient is required to pay the Service Provider all other out-of-pocket fees, costs and expenses incurred in connection with the provision of the services including those of any third party and to reimburse the Service Provider for any such fees, costs and expenses. Such out-of-pocket fees, costs and expenses include, among other things, (i) fees, costs and expenses relating to any debt or equity financing; (ii) out-of-pocket fees, costs and expenses incurred in connection with the general administration of any Service Recipient; (iii) taxes, licenses and other statutory fees or penalties levied against or in respect of a Service Recipient; (iv) amounts owed under indemnification, contribution or similar arrangements; (v) fees, costs and expenses relating to our financial reporting, regulatory filings and investor relations and the fees, costs and expenses of agents, advisors and other persons who provide services to or on behalf of a Service Recipient; and (vi) any other fees, costs and expenses incurred by the Service Provider that are reasonably necessary for the performance by the Service Provider of its duties and functions under the Master Services Agreement.

In addition, the Service Recipients are required to pay all fees, costs and expenses incurred in connection with the investigation, acquisition, holding or disposal of any acquisition that is made or that is proposed to be made by us. Where the acquisition or proposed acquisition involves a joint acquisition that is made alongside one or more other persons, the Service Provider will be required to allocate such fees, costs and expenses in proportion to the notional amount of the acquisition made (or that would have been made in the case of an unconsummated acquisition) among all joint investors. Such additional fees, expenses and costs represent out-of-pocket costs associated with investment activities that are undertaken pursuant to the Master Services Agreement.

The Service Recipients are also required to pay or reimburse the Service Provider for all sales, use, value added, withholding or other taxes or customs duties or other governmental charges levied or imposed by reason of the Master Services Agreement or any agreement it contemplates, other than income taxes, corporation taxes, capital taxes or other similar taxes payable by the Service Provider, which are personal to the Service Provider.

Termination

The Master Services Agreement has no fixed term. However, the Service Recipients may terminate the Master Services Agreement upon 30 days’ prior written notice of termination from our General Partner to the Service Provider if any of the following occurs:

• the Service Provider defaults in the performance or observance of any material term, condition or covenant contained in the agreement in a manner that results in material harm to the Service Recipients and the default continues unremedied for a period of 30 days after written notice of the breach is given to the Service Provider;

• the Service Provider engages in any act of fraud, misappropriation of funds or embezzlement against any Service Recipient that results in material harm to the Service Recipients;

• the Service Provider is grossly negligent in the performance of its duties under the agreement and such negligence results in material harm to the Service Recipients; or

• certain events relating to the bankruptcy or insolvency of the Service Provider.

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The Service Recipients have no right to terminate for any other reason, including if the Service Provider or Brookfield experiences a change of control. Our General Partner may only terminate the Master Services Agreement on behalf of our partnership with the prior unanimous approval of our General Partner’s independent directors.

Our Master Services Agreement expressly provides that the agreement may not be terminated by our General Partner due solely to the poor performance or the underperformance of any of our operations.

The Service Provider may terminate the Master Services Agreement upon 30 days’ prior written notice of termination to our General Partner if any Service Recipient defaults in the performance or observance of any material term, condition or covenant contained in the agreement in a manner that results in material harm and the default continues unremedied for a period of 30 days after written notice of the breach is given to the Service Recipient. The Service Provider may also terminate the Master Services Agreement upon the occurrence of certain events relating to the bankruptcy or insolvency of our partnership.

If the Master Services Agreement is terminated, the Licensing Agreements, the Relationship Agreement and any of Brookfield’s obligations under the Relationship Agreement would also terminate. See Item 7.B “Related Party Transactions—Relationship Agreement” and Item 3.D “Risk Factors—Risks Relating to Our Relationship with Brookfield.”

Indemnification and Limitations on Liability

Under the Master Services Agreement, the Service Provider has not assumed and will not assume any responsibility other than to provide or arrange for the provision of the services called for thereunder in good faith and will not be responsible for any action that the Service Recipients take in following or declining to follow the advice or recommendations of the Service Provider. The maximum amount of the aggregate liability of the Service Provider or any of its affiliates, or of any director, officer, employee, contractor, agent, advisor or other representative of the Service Provider or any of its affiliates, will be equal to the base management fee previously paid by the Service Recipients in the two most recent calendar years pursuant to the Master Services Agreement. The Service Recipients have also agreed to indemnify each of the Service Provider, Brookfield and their directors, officers, agents, members, partners, shareholders and employees to the fullest extent permitted by law from and against any claims, liabilities, losses, damages, costs or expenses (including legal fees) incurred by an indemnified person or threatened in connection with our respective businesses, investments and activities or in respect of or arising from the Master Services Agreement or the services provided by the Service Provider, except to the extent that the claims, liabilities, losses, damages, costs or expenses are determined to have resulted from the indemnified person’s bad faith, fraud or willful misconduct, or in the case of a criminal matter, action that the indemnified person knew to have been unlawful. In addition, under the Master Services Agreement, to the fullest extent permitted by law, the indemnified persons will not be liable to the Service Recipients except for conduct that involved bad faith, fraud, willful misconduct, gross negligence or in the case of a criminal matter, action that the indemnified person knew to have been unlawful.

Outside Activities

Our Master Services Agreement does not prohibit the Service Provider or its affiliates from pursuing other business activities or providing services to third parties that compete directly or indirectly with us. For a description of related aspects of the relationship between Brookfield and the Service Recipients, see Item 7.B “Related Party Transactions—Relationship Agreement.”

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6.B    COMPENSATION

Compensation

During the year ended December 31, 2017, our General Partner paid each of its directors $100,000 per year for serving on its board of directors and various board committees. Our General Partner during the year ended December 31, 2017 paid the chairperson of the board of directors $150,000 per year for serving as chairperson of its board of directors. Also during the year ended December 31, 2017 an additional amount of $20,000 was paid to the chairperson of the audit committee, making the audit committee chairperson’s total remuneration for the 2017 fiscal year $120,000.

Our General Partner does not have any employees. Our partnership has entered into a Master Services Agreement with the Service Provider pursuant to which the Service Provider provides or arranges for other service providers to provide day-to-day management and administrative services for our partnership and the other Service Recipients. The fees payable under the Master Service Agreement are set forth under Item 6.A “Directors and Senior Management—Our Master Services Agreement—Management Fee.” In addition, Brookfield is entitled to receive incentive distributions from the Holding LP described under Item 7.B “Related Party Transactions—Incentive Distributions.”

Pursuant to the Master Service Agreement, members of Brookfield’s senior management and other individuals from Brookfield’s global affiliates are drawn upon to fulfill obligations under the Master Service Agreement. However, these individuals, including the Brookfield employees identified in the table under Item 6.A “Directors and Senior Management—Our Management,” are not compensated by our partnership or our General Partner. Instead, they will continue to be compensated by Brookfield.

6.C    BOARD PRACTICES

Board Structure, Practices and Committees

The structure, practices and committees of our General Partner’s board of directors, including matters relating to the size, independence and composition of the board of directors, the election and removal of directors, requirements relating to board action and the powers delegated to board committees, are governed by our General Partner’s Bye-laws. Our General Partner’s board of directors is responsible for exercising the management, control, power and authority of the General Partner except as required by applicable law or the Bye-laws of the General Partner. The following is a summary of certain provisions of those Bye-laws that affect our partnership’s governance.

Size, Independence and Composition of the Board of Directors

Our General Partner’s board of directors is currently set at eight directors. The board may consist of between three and 11 directors or such other number of directors as may be determined from time-to-time by a resolution of our General Partner’s shareholders and subject to its Bye-laws. At least three directors and at least a majority of the directors holding office must be independent of our General Partner and Brookfield, as determined by the full board of directors using the standards for independence established by the NYSE.

If the death, resignation or removal of an independent director results in the board of directors consisting of less than a majority of independent directors, the vacancy must be filled promptly. Pending the filling of such vacancy, the board of directors may temporarily consist of less than a majority of independent directors and those directors who do not meet the standards for independence may continue to hold office. In addition, our General Partner’s Bye-laws provide that not more than 50% of the directors (as a group) or the independent directors (as a group) may be residents of any one jurisdiction (other than Bermuda and any other jurisdiction designated by the board of directors from time to time).

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Election and Removal of Directors

Our General Partner’s board of directors was appointed by its shareholders and each of its current directors will serve until the close of the next annual meeting of shareholders of our General Partner or his or her death, resignation or removal from office, whichever occurs first. Vacancies on the board of directors may be filled and additional directors may be added by a resolution of our General Partner’s shareholders or a vote of the directors then in office. A director may be removed from office by a resolution duly passed by our General Partner’s shareholders or, if the director has been absent without leave from three consecutive meetings of the board of directors, by a written resolution requesting resignation signed by all other directors then holding office. A director will be automatically removed from the board of directors if he or she becomes bankrupt, insolvent or suspends payments to his or her creditors or becomes prohibited by law from acting as a director.

Action by the Board of Directors

Our General Partner’s board of directors may take action in a duly convened meeting at which a quorum is present or by a written resolution signed by all directors then holding office. Our General Partners’ board of directors holds a minimum of four meetings per year. When action is to be taken at a meeting of the board of directors, the affirmative vote of a majority of the votes cast is required for any action to be taken.

Transactions Requiring Approval by Independent Directors

Our General Partner’s independent directors have approved a conflicts protocol which addresses the approval and other requirements for transactions in which there is greater potential for a conflict of interest to arise. These transactions include:

• the dissolution of our partnership;

• any material amendment to the Master Services Agreement, the Relationship Agreement, our Limited Partnership Agreement or the Holding LP’s limited partnership agreement;

• any material service agreement or other arrangement pursuant to which Brookfield will be paid a fee, or other consideration other than any agreement or arrangement contemplated by the Master Services Agreement;

• acquisitions by us from, and dispositions by us to, Brookfield;

• determinations regarding the payment of fees under the Master Services Agreement in units of our partnership or the Holding LP or the deferral of incentive distributions under the Holding LP’s limited partnership agreement;

• approval of the protocol governing the allocation of employees between our partnership and the Service Provider;

• any other material transaction involving us and Brookfield; and

• termination of, or any determinations regarding indemnification under, the Master Services Agreement.

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Our conflicts protocol requires certain transactions including those described above to be approved by a majority of our General Partner’s independent directors. Pursuant to our conflicts protocol, independent directors may grant approvals for any such transactions in the form of general guidelines, policies or procedures in which case no further special approval will be required in connection with a particular transaction or matter permitted thereby. See Item 7.B “Related Party Transactions—Conflicts of Interest and Fiduciary Duties”.

Transactions in which a Director has an Interest

A director who directly or indirectly has an interest in a contract, transaction or arrangement with our General Partner, our partnership or certain of our affiliates is required to disclose the nature of his or her interest to the full board of directors. Such disclosure may take the form of a general notice given to the board of directors to the effect that the director has an interest in a specified company or firm and is to be regarded as interested in any contract, transaction or arrangement which may after the date of the notice be made with that company or firm or its affiliates. A director may participate in any meeting called to discuss or any vote called to approve the transaction in which the director has an interest and any transaction approved by the board of directors will not be void or voidable solely because the director was present at or participates in the meeting in which the approval was given provided that the board of directors or a board committee authorizes the transaction in good faith after the director’s interest has been disclosed or the transaction is fair to our General Partner and our partnership at the time it is approved.

Transactions Requiring Unitholder Approval

Unitholders have consent rights with respect to certain fundamental matters and on any other matters that require their approval in accordance with applicable securities laws and stock exchanges rules. See Item 10.B “Memorandum and Articles of Association—Description of Our Units, Preferred Units and Our Limited Partnership Agreement”.

Service Contracts

There are no service contracts with directors that provide benefit upon termination of employment.

Director Unit Ownership Requirements

We believe that directors of the General Partner can better represent our unitholders if they have economic exposure to our partnership themselves. We expect that directors of the General Partner hold sufficient units such that the acquisition costs of units held by such directors is equal to at least two times their annual retainer, as determined by the board of directors of the General Partner from time to time. Directors of the General Partner are required to meet this requirement within five years of their date of appointment.

Audit Committee

Our General Partner’s board of directors is required to establish and maintain at all times an audit committee that operates pursuant to a written charter. The audit committee is required to consist solely of independent directors and each member must be financially literate and there will be at least one member designated as an audit committee financial expert. Not more than 50% of the audit committee members may be directors who are residents of any one jurisdiction (other than Bermuda and any other jurisdiction designated by the board of directors from time to time). The audit committee is responsible for assisting and advising our General Partner’s board of directors with matters relating to:

• our accounting and financial reporting processes;

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• the integrity and audits of our financial statements;

• our compliance with legal and regulatory requirements; and

• the qualifications, performance and independence of our independent accountants.

The audit committee is also responsible for engaging our independent accountants, reviewing the plans and results of each audit engagement with our independent accountants, approving professional services provided by our independent accountants, considering the range of audit and non-audit fees charged by our independent accountants and reviewing the adequacy of our internal accounting controls. The audit committee charter is available on our website at https://bip.brookfield.com/corporate-governance/governance-documents and is available upon written request from our Corporate Secretary, at 73 Front Street, Hamilton HM 12, Bermuda. See also Item 6.A “Directors and Senior Management”.

Nominating and Governance Committee

Our General Partner’s board of directors is required to establish and maintain at all times a nominating and governance committee that operates pursuant to a written charter. The nominating and governance committee is required to consist of a majority of independent directors and not more than 50% of the nominating and corporate governance committee members may be directors who are residents of any one jurisdiction (other than Bermuda and any other jurisdiction designated by the board of directors from time to time).

The nominating and governance committee is responsible for approving the appointment by the sitting directors of a person to the office of director and for recommending a slate of nominees for election as directors by our General Partner’s shareholders. The nominating and governance committee is also responsible for assisting and advising our General Partner’s board of directors with respect to matters relating to the general operation of the board of directors, our partnership’s governance, the governance of our General Partner and the performance of its board of directors and individual directors. Subsequent to dissolution of the compensation committee of the board of directors of the General Partner during the year ended December 31, 2013, the nominating and governance committee is also responsible for reviewing and making recommendations to the board of directors of the General Partner concerning the remuneration of directors and committee members and supervising any changes in the fees to be paid pursuant to the Master Services Agreement. The nominating and governance committee charter is available on our website at https://bip.brookfield.com/corporate-governance/governance-documents and is available upon written request from our Corporate Secretary, at 73 Front Street, Hamilton HM 12, Bermuda.

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Indemnification and Limitations on Liability

Our Limited Partnership Agreement

Bermuda law permits the partnership agreement of a limited partnership, such as our partnership, to provide for the indemnification of a partner, the officers and directors of a partner and any other person against any and all claims and demands whatsoever, except to the extent that the indemnification may be held by the courts of Bermuda to be contrary to public policy, such as in instances of fraud, dishonesty and bad faith, or to the extent that Bermuda law prohibits indemnification against personal liability that may be imposed under specific provisions of Bermuda law. Bermuda law also permits a partnership to pay or reimburse an indemnified person’s expenses in advance of a final disposition of a proceeding for which indemnification is sought. See Item 10.B “Memorandum and Articles of Association—Description of Our Units, Preferred Units and Our Limited Partnership Agreement—Indemnification; Limitations on Liability” for a description of the indemnification arrangements in place under our Limited Partnership Agreement.

Our General Partner’s Bye-laws

Bermuda law permits the Bye-laws of an exempted company limited by shares, such as our General Partner, to provide for the indemnification of its officers, directors and shareholders and any other person designated by the company against any and all claims and demands whatsoever, except to the extent that the indemnification may be held by the courts of Bermuda to be contrary to public policy, such as in instances of fraud, dishonesty and bad faith, or to the extent that Bermuda law prohibits indemnification against personal liability that may be imposed under specific provisions of Bermuda law. Bermuda company law also permits an exempted company limited by shares to pay or reimburse an indemnified person’s expenses in advance of a final disposition of a proceeding for which indemnification is sought.

Under our General Partner’s Bye-laws, our General Partner is required to indemnify, to the fullest extent permitted by law, its affiliates, directors, officers, resident representative, shareholders and employees, any person who serves on a governing body of the Holding LP or any of its subsidiaries and certain others against any and all losses, claims, damages, liabilities, costs or expenses (including legal fees and expenses), judgments, fines, penalties, interest, settlements or other amounts arising from any and all claims, demands, actions, suits or proceedings, incurred by an indemnified person in connection with our partnership’s investments and activities or in respect of or arising from their holding such positions, except to the extent that the claims, liabilities, losses, damages, costs or expenses are determined to have resulted from the indemnified person’s bad faith, fraud or willful misconduct, or in the case of a criminal matter, action that the indemnified person knew to have been unlawful. In addition, under our General Partner’s Bye-laws, (i) the liability of such persons has been limited to the fullest extent permitted by law and except to the extent that their conduct involves bad faith, fraud or willful misconduct, or in the case of a criminal matter, action that the indemnified person knew to have been unlawful; and (ii) any matter that is approved by the independent directors will not constitute a breach of any duties stated or implied by law or equity, including fiduciary duties. Our General Partner’s Bye-laws require it to advance funds to pay the expenses of an indemnified person in connection with a matter in which indemnification may be sought until it is determined that the indemnified person is not entitled to indemnification.

Insurance

Our partnership has the benefit of insurance coverage under which the directors of our General Partner are insured, subject to the limits of the policy, against certain losses arising from claims made against such directors by reason of any acts or omissions covered under the policy in their respective capacities as directors of our General Partner, including certain liabilities under securities laws.

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Canadian Insider Reporting

Our partnership is not subject to Canadian insider reporting requirements due to its status as a “SEC Foreign Issuer” under Canadian securities laws. However, our partnership does not rely on the exemption that is available to it from the insider reporting requirements of Canadian securities laws.

6.D    EMPLOYEES

Our partnership does not employ any of the individuals who carry out the management and other non-operational activities of our partnership. The personnel that carry out these activities are employees of Brookfield, and their services are provided to our partnership or for our benefit under our Master Services Agreement. For a discussion of the individuals from Brookfield’s management team that are expected to be involved in our infrastructure business, see Item 6.A “Directors and Senior Management—Our Management.”

6.E    SHARE OWNERSHIP

Each of our directors and officers of our General Partner own less than one percent of our units. See also the information contained in this annual report on Form 20-F under Item 7.B “Related Party Transactions—Distribution Reinvestment Plan.”

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ITEM 7.    MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS

7.A    MAJOR SHAREHOLDERS

The following table presents information regarding the beneficial ownership of our units by each entity that we know beneficially owns more than 5% of our units as at December 31, 2017.

	Units Outstanding
Name and Address	Units Owned(1)		Percentage(2)
Brookfield Asset Management Inc.(3)	116,074,637	(3)	29.6	%	(3)
Partners Limited(4)	119,440,712	(4)	30.4	%	(4)
Bank of Montreal(5)	14,668,348	(5)	5.3	%	(5)

(1) Beneficial ownership is determined in accordance with the rules of the SEC and generally includes voting or investment power with respect to securities. Units relating to securities currently exercisable or exercisable within 60 days of the date of this table are deemed outstanding for computing the percentage of the person holding such securities but are not deemed outstanding for computing the percentage of any other person.

(2) Except as set forth in footnotes(3) and (4) below, the percentages shown are based on 276,572,900 units outstanding as of December 31, 2017.

(3) Brookfield Asset Management may be deemed to be the beneficial owner of 116,074,637 of our units that it holds through wholly-owned subsidiaries, constituting approximately 29.6% of the issued and outstanding units, assuming that all of the Redeemable Partnership Units are exchanged for our units pursuant to the Redemption-Exchange Mechanism described in Item 10.B “Memorandum and Articles of Association—Description of the Holding LP’s Limited Partnership Agreement—Redemption-Exchange Mechanism.” This amount includes 249,645 of our units beneficially held directly or indirectly by Brookfield Asset Management.

(4) Partners Limited is a corporation whose principal business mandate is to hold shares of Brookfield Asset Management, directly or indirectly, for the long-term. Partners Limited may be deemed to be the beneficial owner of 119,440,712 of our units, constituting approximately 30.4% of the issued and outstanding units, assuming that all of the Redeemable Partnership Units are exchanged for our units pursuant to the Redemption-Exchange Mechanism described in Item 10.B “Memorandum and Articles of Association—Description of the Holding LP’s Limited Partnership Agreement—Redemption-Exchange Mechanism.” This amount includes 3,327,972 of our units beneficially held by Partners Value Investments LP and all of our units beneficially held by Brookfield Asset Management. Partners Limited may be deemed to have the power (together with each of Brookfield Asset Management and Partners Value Investments LP) to vote or direct the vote of the units beneficially owned by it or to dispose of such units other than 38,102 of our units with respect to which it has sole voting and investment power.

(5) Based on a Schedule 13G filed by Bank of Montreal on February 14, 2018.

Our major unitholders have the same voting rights as all other holders of our units.

As of December 31, 2017, 134,174.0905 of our outstanding units were held by 838 holders of record in the United States, not including The Depository Trust Company (“DTC”). As of December 31, 2017, DTC was the holder of record of 104,394,416 units.

7.B    RELATED PARTY TRANSACTIONS

We are an affiliate of Brookfield. We have entered into a number of agreements and arrangements with Brookfield in order to enable us to be established as a separate entity and pursue our vision of being a leading owner and operator of high quality infrastructure assets. While we believe that this ongoing relationship with Brookfield provides us with a strong competitive advantage as well as access to opportunities that would otherwise not be available to us, we operate very differently from an independent, stand-alone entity. We describe below these relationships as well as potential conflicts of interest (and the methods for resolving them) and other material considerations arising from our relationship with Brookfield.

See also the information contained in this annual report on Form 20-F under Item 3.D “Risk Factors—Risks Relating to our Relationship with Brookfield,” Item 4.C “Organizational Structure,” Item 6.A “Directors and Senior Management” and Item 7.A “Major Shareholders.”

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Relationship Agreement

Our partnership, the Holding LP, the Holding Entities, the Service Provider and Brookfield have entered into an agreement, referred to as the Relationship Agreement, that governs aspects of the relationship among them. Pursuant to the Relationship Agreement, Brookfield Asset Management has agreed that we serve as the primary (though not exclusive) vehicle through which Brookfield makes future infrastructure related acquisitions that are suitable for our strategy and objectives. Our acquisition strategy focuses on large scale transactions, for which we believe there is less competition and where Brookfield has sufficient influence or control so that our operations-oriented approach can be deployed to create value. Due to similar asset characteristics and capital requirements we believe that the infrastructure industry will evolve like the real estate industry in which assets are commonly owned through consortiums and partnerships of institutional equity investors and owner/operators such as ourselves. Accordingly, an integral part of our strategy is to participate with institutional investors in Brookfield-sponsored or co-sponsored consortiums for single asset acquisitions and as a partner in or alongside Brookfield-sponsored or co-sponsored partnerships that target acquisitions that suit our profile. Brookfield has a strong track record of leading such consortiums and partnerships and actively managing underlying assets to improve performance. Brookfield agreed that it will not sponsor such arrangements that are suitable for us in the infrastructure sector unless we are given an opportunity to participate.

Brookfield’s commitment to us and our ability to take advantage of opportunities is subject to a number of inherent limitations such as our financial capacity, the suitability of the acquisition in terms of the underlying asset characteristics and its fit with our strategy, limitations arising from the tax and regulatory regimes that govern our affairs and certain other restrictions. See Item 3.D “Risk Factors—Risks Relating to Our Relationship with Brookfield.” Under the terms of the Relationship Agreement, our partnership, the Holding LP and the Holding Entities acknowledge and agree that, subject to providing us the opportunity to participate on the basis described above, Brookfield (including its directors, officers, agents, members, partners, shareholders and employees) is able to pursue other business activities and provide services to third parties that compete directly or indirectly with us. In addition, Brookfield has established or advised, and may continue to establish or advise, other entities that rely on the diligence, skill and business contacts of Brookfield’s professionals and the information and acquisition opportunities they generate during the normal course of their activities. Our partnership, the Holding LP and the Holding Entities acknowledge and agree that some of these entities may have objectives that overlap with our objectives or may acquire infrastructure assets or businesses that could be considered appropriate acquisitions for us, and that Brookfield may have greater financial incentives to assist those other entities over us. Due to the foregoing, we expect to compete from time-to-time with Brookfield or other third parties for access to the benefits that we expect to realize from Brookfield’s involvement in our business.

Since Brookfield has large, well established operations in real estate, timberlands and renewable power that are separate from us, Brookfield will not be obligated to provide us with any opportunities in these sectors. In addition, since Brookfield has granted an affiliate the right to act as the exclusive vehicle for Brookfield’s timberland acquisitions in Eastern Canada and the Northeastern U.S., we will not be entitled to participate in timberland acquisitions in those geographic regions. Brookfield has also appointed an affiliate as its primary vehicle through which Brookfield will acquire renewable power assets on a global basis. In the event of the termination of the Master Services Agreement, the Relationship Agreement would also terminate, including Brookfield’s commitments to provide us with acquisition opportunities, as described above.

Pursuant to the Relationship Agreement, Brookfield Asset Management has also agreed that any voting rights with respect to any operating entity that are held by entities over which it has control will be:

• voted in favour of the election of a director (or its equivalent) approved by the entity through which our interest in the relevant entity is held;

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• withheld from voting for (or voted against, if applicable) the election of a director (or its equivalent) not approved by the entity through which our interest in the relevant entity is held; and

• voted in accordance with the direction of the entity through which our interest in the relevant entity is held with respect to the approval or rejection of the following matters relating to the operating entity, as applicable: (i) any sale of all or substantially all of its assets, (ii) any merger, amalgamation, consolidation, business combination or other material corporate transaction, except in connection with any internal reorganization that does not result in a change of control, (iii) any plan or proposal for a complete or partial liquidation or dissolution, or any reorganization or any case, proceeding or action seeking relief under any existing laws or future laws relating to bankruptcy or insolvency, (iv) any issuance of shares, units or other securities, including debt securities, or (v) any commitment or agreement to do any of the foregoing.

For these purposes, the relevant entity may maintain, from time-to-time, an approved slate of nominees or provide direction with respect to the approval or rejection of any matter in the form of general guidelines, policies or procedures in which case no further approval or direction will be required. Any such general guidelines, policies or procedures may be modified by the relevant entity in its discretion.

Under the Relationship Agreement, our partnership, the Holding LP and the Holding Entities have agreed that none of Brookfield or the Service Provider, nor any director, officer, agent, member, partner, shareholder or employee of Brookfield or the Service Provider, will be liable to us for any claims, liabilities, losses, damages, costs or expenses (including legal fees) arising in connection with the business, investments and activities in respect of or arising from the Relationship Agreement. The maximum amount of the aggregate liability of Brookfield, or of any director, officer, employee, contractor, agent, advisor or other representative of Brookfield, will be equal to the amounts previously paid in the two most recent calendar years by the Service Recipients pursuant to the Master Services Agreement.

Voting Agreements

Our partnership has entered into voting agreements (“Voting Agreements”) with Brookfield that permit our partnership (or our partnership’s designated affiliates) to direct all eligible votes with respect to approving or rejecting certain fundamental matters involving certain of our operations managed or controlled by Brookfield-related entities.

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Pursuant to the Voting Agreements, Brookfield has agreed that any voting rights with respect to the entities that are the subject of the Voting Agreements will be voted in favour of the election of directors or officers (or their equivalent, if any) approved by our partnership (or our partnership’s designated affiliates). In addition, Brookfield has agreed that it will exercise any voting rights that are the subject of the Voting Agreements at the direction of our partnership (or our partnership’s designated affiliates) with respect to the following matters: (i) any sale of all or substantially all of its assets, (ii) any merger, amalgamation, consolidation, business combination or other material corporate transaction, except in connection with any internal reorganization that does not result in a change of control, (iii) any plan or proposal for a complete or partial liquidation or dissolution, or any reorganization or any case, proceeding or action seeking relief under any existing laws or future laws relating to bankruptcy or insolvency, (iv) any amendments to the applicable organizational documents, or (v) any commitment or agreement to do any of the foregoing. For these purposes, our partnership or our partnership’s designated affiliates, as applicable, may maintain, from time-to-time, an approved slate of nominees or provide direction with respect to the approval or rejection of any matter in the form of general guidelines, policies or procedures in which case no further approval or direction will be required. Any such slate of nominees or general guidelines, policies or procedures may be modified by our partnership or our partnership’s designated affiliates, as applicable, in their discretion.

Each Voting Agreement terminates (i) at such time that we cease to own any interest in the relevant entity, (ii) at such time that our General Partner (or its successors or permitted assigns) involuntarily ceases to be the general partner of our partnership, (iii) at such time that our partnership (or its successors or permitted assigns) involuntarily ceases to be the general partner of the Holding LP, (iv) at such time that the Infrastructure General Partner (or its successors or permitted assigns) involuntarily ceases to be the general partner of the Infrastructure Special LP, or (v) upon 30 days’ notice given by our partnership. In addition, any party to a Voting Agreement is permitted to terminate the Voting Agreement at such time that such a party provides notice that it has reasonably determined that, as a result of applicable regulation and through no fault of its own, continued participation in the Voting Agreement would have a material adverse effect on such party. The termination of a Voting Agreement with respect to one or more entity will not affect the validity or enforceability of the Voting Agreements with respect to any other entity.

The Voting Agreements also contain restrictions on transfers of the shares that Brookfield has agreed to vote in accordance with the direction of our partnership with respect to the approval or rejection of the matters noted above.

Services Provided under Our Master Services Agreement

The Service Recipients have entered into the Master Services Agreement pursuant to which the Service Provider has agreed to provide or arrange for other service providers to provide management and administration services to our partnership and the other Service Recipients. For example, Samuel Pollock, in his capacity as the Chief Executive Officer of the Service Provider, and Bahir Manios, in his capacity as the Chief Financial Officer of the Service Provider, are the persons who perform the functions of our partnership’s principal executive officer and principal financial officer, respectively. In exchange, the Service Provider is entitled to a base management fee. For a description of our Master Services Agreement, see Item 6.A “Directors and Senior Management—Our Master Services Agreement.”

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Other Services

Brookfield may provide to the operating entities services which are outside the scope of the Master Services Agreement under arrangements that are on market terms and conditions and pursuant to which Brookfield will receive fees. The services provided under these arrangements include financial advisory, operations and maintenance, development, operations management and other services. Pursuant to our conflict of interest guidelines, those arrangements may require prior approval by a majority of the independent directors, which may be granted in the form of general guidelines, policies or procedures. See “—Conflicts of Interest and Fiduciary Duties.”

Preferred Shares

Brookfield has provided an aggregate of $20 million of working capital to certain of our Holding Entities through a subscription for preferred shares of such Holding Entities. The preferred shares are entitled to receive a cumulative preferential dividend equal to 6% of their redemption value as and when declared by the board of directors of the applicable Holding Entity and are redeemable at the option of the Holding Entity, subject to certain limitations, at any time after the tenth anniversary of their issuance. Except for the preferred share of our primary U.S. Holding Entity, which is entitled to one vote, the preferred shares are not entitled to vote, except as required by law.

Redemption-Exchange Mechanism

One or more wholly-owned subsidiaries of Brookfield Asset Management that hold Redeemable Partnership Units (as hereinafter defined) have the right to require the Holding LP to redeem all or a portion of the Redeemable Partnership Units, subject to our partnership’s right of first refusal, for cash in an amount equal to the market value of one of our units multiplied by the number of units to be redeemed (subject to certain adjustments). See Item 10.B “Memorandum and Articles of Association—Description of the Holding LP’s Limited Partnership Agreement—Redemption-Exchange Mechanism.” Taken together, the effect of the redemption right and the right of first refusal is that one or more wholly-owned subsidiaries of Brookfield Asset Management will receive our units, or the value of such units, at the election of our partnership. Should our partnership determine not to exercise its right of first refusal, cash required to fund a redemption of limited partnership interests of the Holding LP held by wholly-owned subsidiaries of Brookfield Asset Management will likely be financed by a public offering of our units.

Registration Rights Agreement

Our partnership has entered into a registration rights agreement with Brookfield pursuant to which our partnership has agreed that, upon the request of Brookfield, our partnership will file one or more registration statements to register for sale under the United States Securities Act of 1933, as amended, any of our units held by Brookfield (including our units acquired pursuant to the Redemption-Exchange Mechanism). In the registration rights agreement we have agreed to pay expenses in connection with such registration and sales and have indemnified Brookfield for material misstatements or omissions in the registration statement.

Incentive Distributions

Infrastructure Special LP is entitled to receive incentive distributions from the Holding LP as a result of its ownership of the Special General Partner Units. The incentive distributions are to be calculated in increments based on the amount by which quarterly distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed specified target levels as set forth in the Holding LP’s limited partnership agreement. See Item 10.B “Memorandum and Articles of Association—Description of the Holding LP’s Limited Partnership Agreement—Distributions.”

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The Infrastructure Special LP may, at its sole discretion, elect to reinvest incentive distributions in exchange for Redeemable Partnership Units.

To the extent that any Holding Entity or any operating entity pays to Brookfield any comparable performance or incentive distribution, the amount of any future incentive distributions will be reduced in an equitable manner to avoid duplication of distributions.

General Partner Distributions

Pursuant to our Limited Partnership Agreement, our General Partner is entitled to receive a general partner distribution equal to 0.01% of the total distributions on the units of our partnership. See Item 10.B “Memorandum and Articles of Association—Description of Our Units, Preferred Units and Our Limited Partnership Agreement.”

Special General Partner Distributions

Pursuant to the limited partnership agreement of the Holding LP, Infrastructure Special LP is also entitled to receive a special general partner distribution from the Holding LP equal to a share of the total distributions of the Holding LP in proportion to Infrastructure Special LP’s special general partnership interest in the Holding LP which is equal to approximately 0.4% of the total distributions on the units of the Holding LP. See Item 10.B “Memorandum and Articles of Association—Description of the Holding LP’s Limited Partnership Agreement—Distributions.” In addition, it is entitled to receive the incentive distributions described above under “—Incentive Distribution.”

Distribution Reinvestment Plan

The Holding LP has a distribution reinvestment plan. Brookfield has advised our partnership that it may from time-to-time reinvest distributions it receives from the Holding LP in the Holding LP’s distribution reinvestment plan. In addition, our partnership adopted a distribution reinvestment plan which became effective on June 29, 2010. The following is a summary description of the principal terms of our partnership’s distribution reinvestment plan.

Pursuant to the distribution reinvestment plan, holders of our units may elect to have distributions paid on our units held by them automatically reinvested in additional units to be held for the account of the unitholder in accordance with the terms of the distribution reinvestment plan, provided that there are not any laws or governmental regulations in the unitholder’s jurisdiction that may limit or prohibit participation and, in the case of DTC participants, where DTC permits participation by participants. Distributions to be reinvested in our units under the distribution reinvestment plan will be reduced by the amount of any applicable withholding tax.

Distributions due to plan participants are paid to the plan agent, for the benefit of the plan participants and, if a plan participant has elected to have his or her distributions automatically reinvested, applied, on behalf of such plan participant, to the purchase of additional units. Such purchases are made from our partnership on the distribution date at a price per unit calculated by reference to the volume weighted average of the trading price for our units on the NYSE for the five trading days immediately preceding the date the relevant distribution is paid by our partnership (“Market Price”).

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As soon as reasonably practicable after each distribution payment date, a statement of account is mailed to each participant setting out the amount of the relevant cash distribution reinvested, the applicable Market Price, the number of units purchased under the distribution reinvestment plan on the distribution payment date and the total number of units, computed to four decimal places, held for the account of the participant under the distribution reinvestment plan (or, in the case of DTC participants, DTC receives such statement on behalf of beneficial owners participating in the distribution reinvestment plan). While our partnership does not issue fractional units, a plan participant’s entitlement to units purchased under the distribution reinvestment plan may include a fraction of a unit and such fractional units shall accumulate. A cash adjustment for any fractional units is paid by the plan agent upon the withdrawal from or termination by a plan participant of his or her participation in the distribution reinvestment plan or upon termination of the distribution reinvestment plan at price per unit calculated based upon the closing price of our units on the NYSE on the trading day immediately preceding such withdrawal or termination. A registered holder may, at any time, obtain unit certificates for any number of whole units held for the participant’s account under the distribution reinvestment plan by notifying the plan agent. Certificates for units acquired under the distribution reinvestment plan are not issued to participants unless specifically requested. Prior to pledging, selling or otherwise transferring units held for a participant’s account (except for sales of units through the plan agent), a registered holder must request that his or her units be electronically transferred to his or her brokerage account or a unit certificate be issued. The automatic reinvestment of distributions under the distribution reinvestment plan does not relieve participants of any income tax obligations applicable to such distributions. No brokerage commissions are payable in connection with the purchase of our units under the distribution reinvestment plan and all administrative costs are borne by our partnership.

Unitholders are able to terminate their participation in the distribution reinvestment plan by providing, or by causing to be provided, notice to the plan agent. Such notice, if actually received by the plan agent no later than five business days prior to a record date, will have effect in respect of the distribution to be made as of such date. Thereafter, distributions to such unitholders will be in cash. In addition, unitholders may request that all or part of their units be sold. When units are sold through the plan agent, a holder will receive the proceeds less a handling charge and any brokerage trading fees. Our partnership is able to amend, modify, suspend or terminate our distribution reinvestment plan, at any time, but such actions will have no retroactive effect that would prejudice a participant’s interest. The plan agent will notify participants in writing of any amendments or modifications to our distribution reinvestment plan that in our partnership’s opinion may materially prejudice participants.

Our partnership does not intend to reinvest distributions it receives from the Holding LP in the Holding LP’s distribution reinvestment plan except to the extent that holders of our units elect to reinvest distributions pursuant to our distribution reinvestment plan. Brookfield has advised our partnership that it may from time-to-time reinvest distributions it receives from the Holding LP pursuant to the Holding LP’s distribution reinvestment plan. The units of the Holding LP to be issued to Brookfield under the distribution reinvestment plan will become subject to the Redemption-Exchange Mechanism and may therefore result in Brookfield acquiring additional units of our partnership. See Item 10.B “Memorandum and Articles of Association—Description of the Holding LP’s Limited Partnership Agreement—Redemption-Exchange Mechanism.”

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Indemnification Arrangements

Subject to certain limitations, Brookfield and its directors, officers, agents, members, partners, shareholders and employees generally benefit from indemnification provisions and limitations on liability that are included in our Limited Partnership Agreement, our General Partner’s Bye-laws, the Holding LP’s limited partnership agreement, our Master Services Agreement and other arrangements with Brookfield. See Item 6.A “Directors and Senior Management—Our Master Services Agreement,” Item 10.B “Memorandum and Articles of Association—Description of Our Units, Preferred Units and Our Limited Partnership Agreement—Indemnification; Limitations of Liability” and Item 10.B “Memorandum and Articles of Association—Description of the Holding LP’s Limited Partnership Agreement—Indemnification; Limitations of Liability.”

Licensing Agreements

Our partnership and the Holding LP have each entered into a Licensing Agreement with Brookfield pursuant to which Brookfield has granted a non-exclusive, royalty-free license to use the name “Brookfield” and the Brookfield logo. Other than under this limited license, we do not have a legal right to the “Brookfield” name and the Brookfield logo in the United States and Canada.

We will be permitted to terminate the Licensing Agreements upon 30 days’ prior written notice if Brookfield defaults in the performance of any material term, condition or agreement contained in the agreement and the default continues for a period of 30 days after written notice of termination of the breach is given to Brookfield. Brookfield may terminate the Licensing Agreements effective immediately upon termination of our Master Services Agreement or with respect to any licensee upon 30 days’ prior written notice of termination if any of the following occurs:

• the licensee defaults in the performance of any material term, condition or agreement contained in the agreement and the default continues for a period of 30 days after written notice of termination of the breach is given to the licensee;

• the licensee assigns, sublicenses, pledges, mortgages or otherwise encumbers the intellectual property rights granted to it pursuant to the Licensing Agreement;

• certain events relating to a bankruptcy or insolvency of the licensee; or

• the licensee ceases to be an affiliate of Brookfield.

A termination of a Licensing Agreement with respect to one or more licensee will not affect the validity or enforceability of the agreement with respect to any other licensees.

Conflicts of Interest and Fiduciary Duties

Our organizational and ownership structure and strategy involve a number of relationships that may give rise to conflicts of interest between our partnership, our unitholders and preferred unitholders, on the one hand, and Brookfield, on the other hand. In particular, conflicts of interest could arise, among other reasons, because:

• in originating and recommending acquisition opportunities, Brookfield has significant discretion to determine the suitability of opportunities for us and to allocate such opportunities to us or to itself or third parties;

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• because of the scale of typical infrastructure acquisitions and because our strategy includes completing acquisitions through consortium or partnership arrangements with pension funds and other financial sponsors, we will likely make co-investments with Brookfield and Brookfield-sponsored funds or Brookfield-sponsored or co-sponsored consortiums and partnerships, which typically will require that Brookfield owe fiduciary duties to the other partners or consortium members that it does not owe to us;

• there may be circumstances where Brookfield will determine that an acquisition opportunity is not suitable for us because of limits arising due to regulatory or tax considerations or limits on our financial capacity or because of the immaturity of the target assets or the fit with our acquisition strategy and Brookfield is entitled to pursue the acquisition on its own behalf rather than offering us the opportunity to make the acquisition and, as a result, Brookfield may initially or ultimately make the acquisition;

• where Brookfield has made an acquisition, it may transfer it to us at a later date after the assets have been developed or we have obtained sufficient financing;

• our relationship with Brookfield involves a number of arrangements pursuant to which Brookfield provides various services and access to financing arrangements and acquisition opportunities, and circumstances may arise in which these arrangements will need to be amended or new arrangements will need to be entered into;

• our arrangements with Brookfield were negotiated in the context of the spin-off, which may have resulted in those arrangements containing terms that are less favourable than those which otherwise might have been obtained from unrelated parties;

• under the Holding LP’s limited partnership agreement and the agreements governing the operating entities, Brookfield is generally entitled to share in the returns generated by our operations, which could create an incentive for it to assume greater risks when making decisions than they otherwise would in the absence of such arrangements;

• Brookfield is permitted to pursue other business activities and provide services to third parties that compete directly with our business and activities without providing us with an opportunity to participate, which could result in the allocation of Brookfield’s resources, personnel and acquisition opportunities to others who compete with us;

• Brookfield does not owe our partnership or our unitholders and preferred unitholders any fiduciary duties, which may limit our recourse against it; and

• the liability of Brookfield is limited under our arrangements with them, and we have agreed to indemnify Brookfield against claims, liabilities, losses, damages, costs or expenses which they may face in connection with those arrangements, which may lead them to assume greater risks when making decisions than they otherwise would if such decisions were being made solely for their own account, or may give rise to legal claims for indemnification that are adverse to the interests of our unitholders and preferred unitholders.

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With respect to transactions in which there is greater potential for a conflict of interest to arise, our General Partner may be required to seek the prior approval of a majority of the independent directors pursuant to conflict of interest guidelines that have been approved by a majority of the independent directors. These transactions include (i) the dissolution of our partnership; (ii) any material amendment to the Master Services Agreement, the Relationship Agreement, our Limited Partnership Agreement or the Holding LP’s limited partnership agreement; (iii) any material service agreement or other arrangement pursuant to which Brookfield will be paid a fee, or other consideration other than any agreement or arrangement contemplated by the Master Services Agreement; (iv) acquisitions by us from, and dispositions by us to, Brookfield; (v) any other transaction involving Brookfield; and (vi) termination of, or any determinations regarding indemnification under, the Master Services Agreement. Pursuant to our conflicts protocol, independent directors may grant prior approvals for any of these transactions in the form of general guidelines, policies or procedures in which case no further special approval will be required in connection with a particular transaction or matter permitted thereby. In certain circumstances, these transactions may be related party transactions for the purposes of and subject to certain requirements of Multilateral Instrument 61-101—Protection of Minority Security Holders in Special Transactions (“MI 61-101”) which in some situations requires minority shareholder approval and/or valuation for transactions with related parties. An exemption from such requirements is available when the fair market value of the transaction is not more than 25% of the market capitalization of the issuer. Our partnership has been granted exemptive relief from the requirements of MI 61-101 that, subject to certain conditions, would permit it to be exempt from the minority approval and valuation requirements for transactions that would have a value of less than 25% of our partnership’s market capitalization if Brookfield’s indirect equity interest in our partnership was included in the calculation of our partnership’s market capitalization. As a result, the 25% threshold above which the minority approval and valuation requirements would apply would be increased to include the approximately 29.4% indirect interest in our partnership in the form of Redeemable Partnership Units held by Brookfield.

We maintain a conflicts protocol to assist in the resolution of these potential or actual conflicts which states that conflicts be resolved based on the principles of transparency, independent validation and approvals. The policy recognizes the benefit to us of our relationship with Brookfield and our intent to pursue a strategy that seeks to maximize the benefits from this relationship. The policy also recognizes that the principal areas of potential application of the policy on an ongoing basis will be in connection with our acquisitions and our participation in Brookfield led consortia and partnership arrangements, together with any management or service arrangements entered into in connection therewith or the ongoing operations of the underlying operating entities.

In general, the policy provides that acquisitions that are carried out jointly by us and Brookfield, or in the context of a Brookfield led or co-led consortium or partnership be carried out on the basis that the consideration paid by us be no more, on a per share or proportionate basis, than the consideration paid by Brookfield or other participants, as applicable. The policy also provides that any fees or carried interest payable in respect of our proportionate investment, or in respect of an acquisition made solely by us, must be credited in the manner contemplated by our Master Services Agreement and the Holding LP’s limited partnership agreement, where applicable, or that such fees or carried interest must either have been negotiated with another arm’s length participant or otherwise demonstrated to be on market terms. The policy further provides that if the acquisition involves the purchase by us of an asset from Brookfield, or the participation in a transaction involving the purchase by us and Brookfield of different assets, that a fairness opinion or, in some circumstances, a valuation or appraisal by a qualified expert be obtained. These requirements provided for in the conflicts protocol are in addition to any disclosure, approval and valuation requirements that may arise under applicable law.

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Our Limited Partnership Agreement contains various provisions that modify the fiduciary duties that might otherwise be owed to our partnership, our unitholders and preferred unitholders including when conflicts of interest arise. Specifically, our limited partnership agreement states that no breach of our Limited Partnership Agreement or a breach of any duty, including fiduciary duties, may be found for any matter that has been approved by a majority of the independent directors of our General Partner. In addition, when resolving conflicts of interest, our limited partnership agreement does not impose any limitations on the discretion of the independent directors or the factors which they may consider in resolving any such conflicts. The independent directors of our General Partner can, subject to acting in

accordance with their own fiduciary duties in their capacity as a director of the General Partner, therefore take into account the interests of third parties, including Brookfield, when resolving conflicts of interest. Additionally, any fiduciary duty that is imposed under any applicable law or agreement is modified, waived or limited to the extent required to permit our General Partner to undertake any affirmative conduct or to make any decisions, so long as such action is reasonably believed to be in, or not inconsistent with, the best interests of our partnership.

Our Master Services Agreement and our other arrangements with Brookfield do not impose on Brookfield any duty (statutory or otherwise) to act in the best interests of the Service Recipients, nor do they impose other duties that are fiduciary in nature. As a result, our General Partner, a wholly-owned subsidiary of Brookfield Asset Management, in its capacity as our general partner, has sole authority to enforce the terms of such agreements and to consent to any waiver, modification or amendment of their provisions, subject to approval by a majority of our independent directors in accordance with our conflicts protocol.

In addition, the Bermuda Limited Partnership Act, under which our partnership and the Holding LP were established, does not impose statutory fiduciary duties on a general partner of a limited partnership in the same manner that certain corporate statutes, such as the Canada Business Corporations Act, impose fiduciary duties on directors of a corporation. In general, under applicable Bermudian legislation, a general partner has a duty to: (i) act at all times in good faith; and (ii) subject to any express provisions of the partnership agreement to the contrary, act in the interests of the limited partnership. Applicable Bermuda legislation also provides that a general partner has certain limited duties to its limited partners, such as the duty to render accounts, account for private profits and not compete with the partnership in business. In addition, Bermudian common law recognizes that a general partner owes a duty of utmost good faith to its limited partners. These duties are, in most respects, similar to duties imposed on a general partner of a limited partnership under U.S. and Canadian law. However, to the extent that our General Partner owes any such fiduciary duties to our partnership, our unitholders and preferred unitholders, these duties have been modified pursuant to our Limited Partnership Agreement as a matter of contract law, with the exception of the duty of our General Partner to act in good faith, which cannot be modified. We have been advised by counsel that such modifications are not prohibited under Bermudian law, subject to typical qualifications as to enforceability of contractual provisions, such as the application of general equitable principles. This is similar to Delaware law which expressly permits modifications to the fiduciary duties owed to partners, other than an implied contractual covenant of good faith and fair dealing.

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In addition, our Limited Partnership Agreement provides that our General Partner and its affiliates do not have any obligation under our Limited Partnership Agreement, or as a result of any duties stated or implied by law or equity, including fiduciary duties, to present business or investment opportunities to our partnership, the Holding LP, any Holding Entity or any other holding entity established by us. They also allow affiliates of our General Partner to engage in activities that may compete with us or our activities. Additionally, any failure by our General Partner to consent to any merger, consolidation or combination will not result in a breach of our Limited Partnership Agreement or any other provision of law. Our Limited Partnership Agreement prohibits our limited partners from advancing claims that otherwise might raise issues as to compliance with fiduciary duties or applicable law.

These modifications to the fiduciary duties are detrimental to our unitholders and preferred unitholders because they restrict the remedies available for actions that might otherwise constitute a breach of fiduciary duty and permit conflicts of interest to be resolved in a manner that is not in the best interests of our partnership or the best interests of our unitholders and preferred unitholders. We believe it is necessary to modify the fiduciary duties that might otherwise be owed to us, our unitholders and preferred unitholders, as described above, due to our organizational and ownership structure and the potential conflicts of interest created thereby. Without modifying those duties, the ability of our General Partner to attract and retain experienced and capable directors and to take actions that we believe will be necessary for the carrying out of our business would be unduly limited due to their concern about potential liability. See Item 3.D “Risk Factors—Risks Relating to Our Relationship with Brookfield—Our Master Services Agreement and our other arrangements with Brookfield do not impose on Brookfield any fiduciary duties to act in the best interests of our unitholders or preferred unitholders.”

Bermuda partnership legislation provides that, subject to any express provision of the partnership agreement to the contrary, a limited partner of a limited partnership in that capacity does not owe any fiduciary duty in exercising any of its rights or authorities or otherwise in performing any of its obligations under the partnership agreement to the limited partnership or any other partner. Our Limited Partnership Agreement imposes no such fiduciary duty.

Other Related Party Transactions

Brookfield Infrastructure is the borrower under a $500 million revolving credit facility with Brookfield to provide additional liquidity for general corporate purposes and capital expenditures, if required. The independent directors of our General Partner approved Brookfield Infrastructure’s entry into this revolving credit facility on February 8, 2018. The revolving credit facility has an effective date of February 8, 2018 and automatically renews for four consecutive one year terms on the first, second, third and fourth anniversary of such effective date, which would result it in ultimately maturing on February 8, 2023. Brookfield has the option to terminate the agreement prior to February 8 each year by providing Brookfield Infrastructure with written notice. All obligations of Brookfield Infrastructure under the facility were guaranteed by our partnership. Loans under this facility accrued interest on LIBOR plus 2.00% and no commitment fees were incurred for any undrawn balance. As of December 31, 2017, there were no borrowings outstanding.

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From time to time, each of Brookfield and Brookfield Infrastructure may place funds on deposit with the other, on terms approved by the independent directors of our General Partner. Interest earned on such deposits is at market terms. At December 31, 2017, Brookfield Infrastructure’s deposit balance with Brookfield was less than $1 million (December 31, 2016: 255 million) and earned interest of less than $1 million for year ended December 31, 2017 (2016: less than $1 million, 2015: less than $1 million). At December 31, 2017, Brookfield’s deposit balance with Brookfield Infrastructure was $nil (December 31, 2016: $nil) and earned interest of $nil for year ended December 31, 2017 (2016: $nil, 2015: $nil). Subsequent to year end, Brookfield placed $400 million on deposit with Brookfield Infrastructure.

An integral part of our partnership’s strategy is to participate with institutional investors in Brookfield-sponsored infrastructure funds that target acquisitions that suit Brookfield Infrastructure’s profile. In the normal course of business, our partnership has made commitments to Brookfield-sponsored infrastructure funds to fund these target acquisitions in the future, if and when identified.

7.C    INTEREST OF EXPERTS AND COUNSEL

Not applicable.

ITEM 8.    FINANCIAL INFORMATION

8.A    CONSOLIDATED STATEMENTS AND OTHER FINANCIAL INFORMATION

See Item 5 “Operating and Financial Review and Prospects—Management’s Discussion and Analysis of Financial Condition and Results of Operations” and Item 18 “Financial Statements” for additional information required to be disclosed under this Item.

8.B    SIGNIFICANT CHANGES

See Item 3 “Key Information,” Item 4 “Information on the Company,” Item 5 “Operating and Financial Review and Prospects—Management’s Discussion and Analysis of Financial Condition and Results of Operation” for additional information.

ITEM 9.    THE OFFER AND LISTING

9.A    OFFER AND LISTING DETAILS (PRICE HISTORY)

The following table sets forth the annual high and low prices for our units on the NYSE for the past five years, which has been recast for all periods indicated to reflect the Unit Split completed on September 14, 2016:

	High		Low
Year ended December 31, 2013	$	27.51	$	22.79
Year ended December 31, 2014	$	28.66	$	23.81
Year ended December 31, 2015	$	31.03	$	24.50
Year ended December 31, 2016	$	34.64	$	21.39
Year ended December 31, 2017	$	45.72	$	33.44

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The following table sets forth the quarterly high and low prices for our units on the NYSE for the two most recent full financial years, which has been recast for all periods indicated to reflect the Unit Split completed on September 14, 2016:

	High		Low
January 1, 2016 to March 31, 2016	$	28.09	$	21.39
April 1, 2016 to June 30, 2016	$	30.17	$	26.43
July 1, 2016 to September 30, 2016	$	34.64	$	30.37
October 1, 2016 to December 31, 2016	$	34.57	$	31.16
January 1, 2017 to March 31, 2017	$	38.93	$	33.44
April 1, 2017 to June 30, 2017	$	41.12	$	37.99
July 1, 2017 to September 30, 2017	$	44.64	$	39.76
October 1, 2017 to December 31, 2017	$	45.72	$	42.22

The following table sets forth the monthly high and low prices for our units on the NYSE for the most recent six months, which has been recast for all periods indicated to reflect the Unit Split completed on September 14, 2016:

	High		Low
September 1, 2017 to September 30, 2017	$	43.84	$	41.58
October 1, 2017 to October 31, 2017	$	44.31	$	42.34
November 1, 2017 to November 30, 2017	$	44.06	$	42.22
December 1, 2017 to December 31, 2017	$	45.72	$	43.48
January 1, 2018 to January 31, 2018	$	44.64	$	42.46
February 1, 2018 to February 28, 2018	$	42.26	$	40.11

The following table sets forth the annual high and low prices for our units on the TSX for the past five years, in Canadian dollars, which has been recast for all periods indicated to reflect the Unit Split completed on September 14, 2016:

	High		Low
Year ended December 31, 2013	$	28.72	$	23.55
Year ended December 31, 2014	$	32.61	$	26.33
Year ended December 31, 2015	$	38.73	$	32.78
Year ended December 31, 2016	$	45.75	$	30.81
Year ended December 31, 2017	$	57.85	$	44.90

The following table sets forth the quarterly high and low prices for our units on the TSX for the two most recent full financial years, in Canadian dollars, which has been recast for all periods indicated to reflect the Unit Split completed on September 14, 2016:

	High		Low
January 1, 2016 to March 31, 2016	$	36.46	$	30.81
April 1, 2016 to June 30, 2016	$	38.97	$	34.73
July 1, 2016 to September 30, 2016	$	45.55	$	39.39
October 1, 2016 to December 31, 2016	$	45.75	$	42.16
January 1, 2017 to March 31, 2017	$	51.95	$	44.90
April 1, 2017 to June 30, 2017	$	55.29	$	50.85
July 1, 2017 to September 30, 2017	$	56.10	$	50.12
October 1, 2017 to December 31, 2017	$	57.85	$	53.16

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The following table sets forth the monthly high and low prices for our units on the TSX for the most recent six months, in Canadian dollars, which has been recast for all periods indicated to reflect the Unit Split completed on September 14, 2016

	High		Low
September 1, 2017 to September 30, 2017	$	53.83	$	50.91
October 1, 2017 to October 31, 2017	$	55.23	$	53.16
November 1, 2017 to November 30, 2017	$	56.31	$	53.95
December 1, 2017 to December 31, 2017	$	57.85	$	55.28
January 1, 2018 to January 31, 2018	$	55.83	$	52.06
February 1, 2018 to February 28, 2018	$	52.93	$	50.80

Our units do not have a par value.

9.B    PLAN OF DISTRIBUTION

Not applicable.

9.C    MARKETS

Our units are listed on the NYSE under the symbol “BIP” and on the TSX under the symbol “BIP.UN”. Our Series 1 Preferred Units, Series 3 Preferred Units, Series 5 Preferred Units, Series 7 Preferred Units and Series 9 Preferred Units are listed on the TSX under the symbols “BIP.PR.A”, “BIP.PR.B”, “BIP.PR.C”, “BIP.PR.D” and “BIP.PR.E”, respectively.

9.D    SELLING SHAREHOLDERS

Not applicable.

9.E    DILUTION

Not applicable.

9.F    EXPENSES OF THE ISSUE

Not applicable.

ITEM 10.    ADDITIONAL INFORMATION

10.A    SHARE CAPITAL

Not applicable.

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10.B    MEMORANDUM AND ARTICLES OF ASSOCIATION

DESCRIPTION OF OUR UNITS, PREFERRED UNITS AND OUR LIMITED PARTNERSHIP AGREEMENT

The following is a description of the material terms of our units and our Limited Partnership Agreement and is qualified in its entirety by reference to all of the provisions of our Limited Partnership Agreement. Because this description is only a summary of the terms of our units and our Limited Partnership Agreement, it does not contain all of the information that you may find useful. For more complete information, you should read our Limited Partnership Agreement which is available electronically on the website of the Securities and Exchange Commission at www.sec.gov and our Canadian System for Electronic Document Analysis and Retrieval (“SEDAR”) profile at www.sedar.com and will be made available to our holders as described under Item 10.C “Material Contracts” and Item 10.H “Documents on display.”

See also the information contained in this annual report on Form 20-F under Item 3.D “Risk Factors—Risk Relating to Our Relationship with Brookfield,” Item 4.C “Organizational Structure,” Item 6.A “Directors and Senior Management” and Item 7.B “Related Party Transactions.”

Formation and Duration

Our partnership is a Bermuda exempted limited partnership registered under the Bermuda Limited Partnership Act and the Bermuda Exempted Partnerships Act. Our partnership has a perpetual existence and will continue as a limited liability partnership unless our partnership is terminated or dissolved in accordance with our Limited Partnership Agreement. Our partnership interests consist of our units and preferred units, which represent limited partnership interests in our partnership, and any additional partnership interests representing limited partnership interests that we may issue in the future as described below under “—Issuance of Additional Partnership Interests.” In this description, references to “holders of our partnership interests”, our “preferred unitholders” and our “unitholders” are to our limited partners and references to our limited partners include holders of our units and preferred units.

Nature and Purpose

Under section 2.2 of our Limited Partnership Agreement, the purpose of our partnership is to: acquire and hold interests in the Holding LP and, subject to the approval of our General Partner, interests in any other entity; engage in any activity related to the capitalization and financing of our partnership’s interests in such entities; serve as the managing general partner of the Holding LP; and engage in any other activity that is incidental to or in furtherance of the foregoing and that is approved by our General Partner and that lawfully may be conducted by a limited partnership organized under the Bermuda Limited Partnership Act, the Exempted Partnerships Act, and our Limited Partnership Agreement.

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Holders of Units or Preferred Units

Our units and preferred units are limited partnership interests in our partnership. Holders of our units or preferred units are not entitled to the withdrawal or return of capital contributions in respect of our units or preferred units, except to the extent, if any, that distributions are made to such holders pursuant to our Limited Partnership Agreement or upon the liquidation of our partnership as described below under “—Liquidation and Distribution of Proceeds” or as otherwise required by applicable law. Except to the extent expressly provided in our Limited Partnership Agreement, a holder of our units or preferred units does not have priority over any other unitholder or preferred unitholder, either as to the return of capital contributions or as to profits, losses or distributions. Unitholders and preferred unitholders will not be granted any preemptive or other similar right to acquire additional interests in our partnership. In addition, unitholders and preferred unitholders do not have any right to have their units or preferred units redeemed by our partnership.

Our Preferred Units

The Class A Preferred Units rank senior to the units with respect to priority in the payment of distributions and in the distribution of the assets in the event of the liquidation, dissolution or winding-up of our partnership, whether voluntary or involuntary. Each series of Class A Preferred Units ranks on a parity with every other series of the Class A Preferred Units with respect to priority in the payment of distributions and in the distribution of the assets in the event of the liquidation, dissolution or winding-up of our partnership, whether voluntary or involuntary.

The Series 1 Preferred Units are redeemable by our partnership on June 30, 2020 and on June 30 every five years thereafter for C$25.00 per Series 1 Preferred Unit, together with all accrued and unpaid distributions. Holders of the Series 1 Preferred Units will have the right, at their option, to reclassify their Series 1 Preferred Units into Series 2 Preferred Units, subject to certain conditions, on June 30, 2020 and on June 30 every five years thereafter. The Series 3 Preferred Units are redeemable by our partnership on December 31, 2020 and on December 31 every five years thereafter for C$25.00 per Series 3 Preferred Unit, together with all accrued and unpaid distributions. Holders of the Series 3 Preferred Units will have the right, at their option, to reclassify their Series 3 Preferred Units into Series 4 Preferred Units, subject to certain conditions, on December 31, 2020 and on December 31 every five years thereafter. The Series 5 Preferred Units are redeemable by our partnership on September 30, 2021 and on September 30 every five years thereafter for C$25.00 per Series 5 Preferred Unit, together with all accrued and unpaid distributions. Holders of the Series 5 Preferred Units will have the right, at their option, to reclassify their Series 5 Preferred Units into Series 6 Preferred Units, subject to certain conditions, on September 30, 2021 and on September 30 every five years thereafter. The Series 7 Preferred Units are redeemable by our partnership on March 31, 2022 and on March 31 every five years thereafter for C$25.00 per Series 7 Preferred Unit, together with all accrued and unpaid distributions. Holders of the Series 7 Preferred Units will have the right, at their option, to reclassify their Series 7 Preferred Units into Series 8 Preferred Units, subject to certain conditions, March 31, 2022 and on March 31 every five years thereafter. The Series 9 Preferred Units are redeemable by our partnership on March 31, 2023 and on March 31 every five years thereafter for C$25.00 per Series 9 Preferred Unit, together with all accrued and unpaid distributions. Holders of the Series 9 Preferred Units will have the right, at their option, to reclassify their Series 9 Preferred Units into Series 10 Preferred Units, subject to certain conditions, on March 31, 2023 and on March 31 every five years thereafter. Our preferred units do not have a fixed maturity date and are not redeemable at the option of preferred unitholders.

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Issuance of Additional Partnership Interests

Subject to the rights of the holders of Class A Preferred Units to approve issuances of additional partnership interests ranking senior to the Class A Preferred Units with respect to priority in the payment of distributions and in the distribution of the assets in the event of the liquidation, dissolution or winding-up of our partnership, whether voluntary or involuntary, our General Partner has broad rights to cause our partnership to issue additional partnership interests and may cause our partnership to issue additional partnership interests (including new classes of partnership interests and options, rights, warrants and appreciation rights relating to such interests) for any partnership purpose, at any time and on such terms and conditions as it may determine without the approval of any limited partners. Any additional partnership interests may be issued in one or more classes, or one or more series of classes, with such designations, preferences, rights, powers and duties (which may be senior to existing classes and series of partnership interests) as may be determined by our General Partner in its sole discretion, all without approval of our limited partners.

Investments in the Holding LP

If and to the extent that our partnership raises funds by way of the issuance of equity or debt securities, or otherwise, pursuant to a public offering, private placement or otherwise, an amount equal to the proceeds will be invested in the Holding LP, unless otherwise agreed by our partnership and the Holding LP.

Capital Contributions

Brookfield and our General Partner each contributed $1 to the capital of our partnership in order to form our partnership. Thereafter, Brookfield contributed to our partnership limited partnership interests of the Holding LP in exchange for Redeemable Partnership Units and our units, the latter of which was distributed by Brookfield Asset Management in the spin-off.

Distributions

Subject to the rights of holders of Class A Preferred Units to receive cumulative preferential cash distributions in accordance with their terms, distributions to partners of our partnership will be made only as determined by our General Partner in its sole discretion. However, our General Partner will not be permitted to cause our partnership to make a distribution if it does not have sufficient cash on hand to make the distribution, the distribution would render it insolvent or if, in the opinion of our General Partner, the distribution would leave it with insufficient funds to meet any future or contingent obligations. In addition, our partnership will not be permitted to make a distribution on our units unless all accrued distributions have been paid in respect of the Class A Preferred Units and all other units of our partnership ranking prior to or on a parity with the Class A Preferred Units with respect to the payment of distributions.

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Holders of the Series 1 Preferred Units will be entitled to receive a cumulative quarterly fixed distribution at a rate of 4.50% annually for the initial period ending June 30, 2020. Thereafter, the distribution rate will be reset every five years at a rate equal to the 5-year Government of Canada bond yield plus 3.56%. Holders of Series 2 Preferred Units will be entitled to receive a cumulative quarterly floating distribution at a rate equal to the 90-day Canadian Treasury Bill yield plus 3.56%. Holders of the Series 3 Preferred Units will be entitled to receive a cumulative quarterly fixed distribution at a rate of 5.50% annually for the initial period ending December 31, 2020. Thereafter, the distribution rate will be reset every five years at a rate equal to the greater of: (i) the 5-year Government of Canada bond yield plus 4.53%, and (ii) 5.50%. Holders of Series 4 Preferred Units will be entitled to receive a cumulative quarterly floating distribution at a rate equal to the 90-day Canadian Treasury Bill yield plus 4.53%. Holders of the Series 5 Preferred Units will be entitled to receive a cumulative quarterly fixed distribution at a rate of 5.35% annually for the initial period ending September 30, 2021. Thereafter, the distribution rate will be reset every five years at a rate equal to the greater of: (i) the 5 year Government of Canada bond yield plus 4.64%, and (ii) 5.35%. Holders of Series 6 Preferred Units will be entitled to receive a cumulative quarterly floating distribution at a rate equal to the 90 day Canadian Treasury Bill yield plus 4.64%. Holders of the Series 7 Preferred Units will be entitled to receive a cumulative quarterly fixed distribution at a rate of 5.00% annually for the initial period ending March 31, 2022. Thereafter, the distribution rate will be reset every five years at a rate equal to the greater of: (i) the 5 year Government of Canada bond yield plus 3.78%, and (ii) 5.00%. Holders of Series 8 Preferred Units will be entitled to receive a cumulative quarterly floating distribution at a rate equal to the 90 day Canadian Treasury Bill yield plus 3.78%. Holders of the Series 9 Preferred Units will be entitled to receive a cumulative quarterly fixed distribution at a rate of 5.00% annually for the initial period ending March 31, 2023. Thereafter, the distribution rate will be reset every five years at a rate equal to the greater of: (i) the 5 year Government of Canada bond yield plus 3.00%, and (ii) 5.00%. Holders of Series 10 Preferred Units will be entitled to receive a cumulative quarterly floating distribution at a rate equal to the 90 day Canadian Treasury Bill yield plus 3.00%. Subject to the terms of any preferred units outstanding at the time, any distributions from our partnership will be made to the limited partners holding units as to 99.99% and to our General Partner as to 0.01%. Distributions to holders of Class A Preferred Units in accordance with their terms rank higher in priority than distributions to holders of our units. Each holder of units or preferred units will receive a pro rata share of distributions made to all holders of units or preferred units, as applicable, in accordance with the proportion of all units or preferred units held by that holder. See Item 8.A “Consolidated Statements and Other Financial Information.”

Allocations of Income and Losses

Net income and net loss for U.S. federal income tax purposes will be allocated for each taxable year or other relevant period among our partners (other than our partners holding preferred units) using a monthly, quarterly or other permissible convention pro rata on a per unit basis, except to the extent otherwise required by law or pursuant to tax elections made by our partnership. The source and character of items of income and loss so allocated to a partner of our partnership (other than a partner holding preferred units) will be the same source and character as the income earned or loss incurred by our partnership.

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The income for Canadian federal income tax purposes of our partnership for a given fiscal year of our partnership will be allocated to each partner in an amount calculated by multiplying such income by a fraction, the numerator of which is the sum of the distributions received by such partner with respect to such fiscal year and the denominator of which is the aggregate amount of the distributions made by our partnership to partners with respect to such fiscal year, provided that the numerator and denominator will not include any distributions on the preferred units that are in satisfaction of accrued distributions on the preferred units that were not paid in a previous fiscal year of our partnership where our General Partner determines that the inclusion of such distributions would result in a preferred unitholder being allocated more income than it would have been if the distributions were paid in the fiscal year of our partnership in which they were accrued. Generally, the source and character of items of income so allocated to a partner with respect to a fiscal year of our partnership will be the same source and character as the distributions received by such partner with respect to such fiscal year. To such end, any person who was a partner at any time during such fiscal year but who has disposed of all of their units (including any preferred units) before the last day of that fiscal year may be deemed to be a partner on the last day of such fiscal year for the purposes of subsection 96(1) of the Tax Act. Our General Partner may adjust allocations of items that would otherwise be made pursuant to the terms of our Limited Partnership Agreement to the extent necessary to avoid an adverse effect on our partnership’s limited partners, subject to the approval of a committee of the board of directors of our General Partner made up of independent directors.

If, with respect to a given fiscal year, no distribution is made by our partnership or our partnership has a loss for Canadian federal income tax purposes, one quarter of the income or loss, as the case may be, for Canadian federal income tax purposes for such fiscal year, will be allocated to the partners of record at the end of each quarter ending in such fiscal year as follows: (i) to the preferred unitholders in respect of preferred units held by them on each such date, such amount of the income or the loss, as the case may be, for Canadian federal income tax purposes as our General Partner determines is reasonable in the circumstances having regard to such factors as our General Partner considers to be relevant, including, without limitation, the relative amount of capital contributed to our partnership on the issuance of preferred units as compared to all other units and the relative fair market value of the preferred units as compared to all other units, and (ii) to the partners, other than in respect of preferred units, the remaining amount of the income or the loss, as the case may be, for Canadian federal income tax purposes pro rata to their respective percentage interests on each such date.

Limited Liability

Assuming that a limited partner does not, in its capacity as a holder of limited partnership units, participate in the control or management of our partnership or conduct the affairs of, sign or execute documents for or otherwise bind our partnership within the meaning of the Bermuda Limited Partnership Act and otherwise acts in conformity with the provisions of our limited partnership agreement, such partner’s liability under the Bermuda Limited Partnership Act and our limited partnership agreement will be limited to the amount of capital such partner is obligated to contribute to our partnership for its limited partner interest plus its share of any undistributed profits and assets, except as described below.

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If it were determined, however, that a limited partner, in its capacity as a holder of limited partnership units, was participating in the control or management of our partnership or conducting the affairs of, signing or executing documents for or otherwise binding our partnership (or purporting to do any of the foregoing) within the meaning of the Bermuda Limited Partnership Act or the Bermuda Exempted Partnerships Act, such limited partner would be liable as if it were a general partner of our partnership in respect of all debts of our partnership incurred while that limited partner was so acting or purporting to act. Neither our limited partnership agreement nor the Bermuda Limited Partnership Act specifically provides for legal recourse against our General Partner if a limited partner were to lose limited liability through any fault of our General Partner. While this does not mean that a limited partner could not seek legal recourse, we are not aware of any precedent for such a claim in Bermuda case law.

The Bermuda Limited Partnership Act provides that a limited partner does not take part in the management of a partnership by reason only of serving on a board or committee of that limited partnership’s general partner.

No Management or Control

Our partnership’s limited partners, in their capacities as such, may not take part in the management or control of the activities and affairs of our partnership and do not have any right or authority to act for or to bind our partnership or to take part or interfere in the conduct or management of our partnership. Limited partners are not entitled to vote on matters relating to our partnership, although holders of units are entitled to consent to certain matters as described under “—Amendment of Our Limited Partnership Agreement,” “—Opinion of Counsel and Limited Partner Approval,” “—Merger, Sale or Other Disposition of Assets,” and “—Withdrawal of Our General Partner” which may be effected only with the consent of the holders of the percentages of our outstanding units specified below. In addition, limited partners have consent rights with respect to certain fundamental matters and on any other matters that require their approval in accordance with applicable securities laws and stock exchange rules. Each unit shall entitle the holder thereof to one vote for the purposes of any approvals of holders of units. Except as otherwise provided by law or as set out in the provisions attached to any series of Class A Preferred Units and except for meetings of the holders of Class A Preferred Units as a class or meetings of the holders of a series thereof, the holders of a series of Class A Preferred Units are not entitled to receive notice of, attend, or vote at any meeting of holders of units, unless and until our partnership shall have failed to pay eight quarterly distributions in respect of such series of Class A Preferred Units, whether or not consecutive and whether or not such distributions have been declared and whether or not there are any monies of our partnership properly applicable to the payment of distributions. In the event of such non-payment, and for only so long as any such distributions remain in arrears, such holders will be entitled to receive notice of and to attend each meeting of holders of units (other than any meetings at which only holders of another specified class or series are entitled to vote) and such holders shall have the right, at any such meeting, to one vote for each such Class A Preferred Unit held. Upon payment of the entire amount of all such distributions in arrears, the voting rights of such holders of Class A Preferred Units shall forthwith cease (unless and until the same default shall again arise as described herein).

Meetings

Our General Partner may call special meetings of partners at a time and place outside of Canada determined by our General Partner on a date not less than 10 days nor more than 60 days after the mailing of notice of the meeting. The limited partners do not have the ability to call a special meeting. Only holders of record on the date set by our General Partner (which may not be less than 10 days nor more than 60 days, before the meeting) are entitled to notice of any meeting.

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Written consents may be solicited only by or on behalf of our General Partner. Any such consent solicitation may specify that any written consents must be returned to our partnership within the time period, which may not be less than 20 days, specified by our General Partner.

For purposes of determining holders of partnership interests entitled to provide consents to any action described above, our General Partner may set a record date, which may be not less than 10 nor more than 60 days before the date by which record holders are requested in writing by our General Partner to provide such consents. Only those holders of partnership interests on the record date established by our General Partner will be entitled to provide consents with respect to matters as to which a consent right applies.

Amendment of Our Limited Partnership Agreement

Amendments to our Limited Partnership Agreement may be proposed only by or with the consent of our General Partner. To adopt a proposed amendment, other than the amendments that do not require limited partner approval discussed below, our General Partner must seek approval of a majority of our outstanding units required to approve the amendment or call a meeting of the limited partners to consider and vote upon the proposed amendment.

Notwithstanding the above, in addition to any other approvals required by law, the approval of all amendments to the rights, privileges, restrictions and conditions attaching to the Class A Preferred Units as a class and any other approval to be given by the holders of the Class A Preferred Units may be (i) given by a resolution signed by the holders of Class A Preferred Units owning not less than the percentage of the Class A Preferred Units that would be necessary to authorize such action at a meeting of the holders of the Class A Preferred Units at which all holders of the Class A Preferred Units were present and voted or were represented by proxy, or (ii) passed by an affirmative vote of at least 66^2/3% of the votes cast at a meeting of holders of the Class A Preferred Units duly called for that purpose and at which the holders of at least 25% of the outstanding Class A Preferred Units are present or represented by proxy or, if no quorum is present at such meeting, at an adjourned meeting at which the holders of Class A Preferred Units then present would form the necessary quorum. At any meeting of holders of Class A Preferred Units as a class, each such holder shall be entitled to one vote in respect of each Class A Preferred Unit held.

Further, in addition to any other approvals required by law, the approval of all amendments to the rights, privileges, restrictions and conditions attaching to each series of Class A Preferred Units, as a series, and any other approval to be given by the holders of each series of Class A Preferred Units, as a series, may be (i) given by a resolution signed by the holders of the applicable series of Class A Preferred Units owning not less than the percentage of such series of Class A Preferred Units that would be necessary to authorize such action at a meeting of the holders of the applicable series of Class A Preferred Units at which all holders of the applicable series of Class A Preferred Units were present and voted or were represented by proxy, or (ii) passed by an affirmative vote of at least 66^2/3% of the votes cast at a meeting of holders of the applicable series of Class A Preferred Units duly called for that purpose and at which the holders of at least 25% of the outstanding applicable series of Class A Preferred Units are present or represented by proxy or, if no quorum is present at such meeting, at an adjourned meeting at which the holders of the applicable series of Class A Preferred Units then present would form the necessary quorum. At any meeting of holders of a series of Class A Preferred Units, as a series, each such holder shall be entitled to one vote in respect of the applicable Class A Preferred Unit held.

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Prohibited Amendments

No amendment may be made that would:

• enlarge the obligations of any limited partner without its consent, except that any amendment that would have a material adverse effect on the rights or preferences of any class of partnership interests in relation to other classes of partnership interests may be approved by at least a majority of the type or class of partnership interests so affected; or

• enlarge the obligations of, restrict in any way any action by or rights of, or reduce in any way the amounts distributable, reimbursable or otherwise payable by our partnership to our General Partner or any of its affiliates without the consent of our General Partner, which may be given or withheld in its sole discretion.

The provision of our Limited Partnership Agreement preventing the amendments having the effects described directly above can be amended upon the approval of the holders of at least 90% of the outstanding units.

No Limited Partner Approval

Subject to applicable law, our General Partner may generally make amendments to our limited partnership agreement without the approval of any limited partner to reflect:

• a change in the name of our partnership, the location of our partnership’s registered office, or our partnership’s registered agent;

• the admission, substitution or withdrawal of partners in accordance with our Limited Partnership Agreement;

• a change that our General Partner determines is necessary or appropriate for our partnership to qualify or to continue our partnership’s qualification as a limited partnership or a partnership in which the limited partners have limited liability under the laws of any jurisdiction or to ensure that our partnership will not be treated as an association taxable as a corporation or otherwise taxed as an entity for tax purposes;

• an amendment that our General Partner determines to be necessary or appropriate to address certain changes in tax regulations, legislation or interpretation;

• an amendment that is necessary, in the opinion of our counsel, to prevent our partnership or our General Partner or its directors, officers, agents or trustees, from having a material risk of being in any manner being subjected to the provisions of the Investment Company Act or similar legislation in other jurisdictions;

• an amendment that our General Partner determines in its sole discretion to be necessary or appropriate for the creation, authorization or issuance of any class or series of partnership interests or options, rights, warrants or appreciation rights relating to partnership securities;

• any amendment expressly permitted in our Limited Partnership Agreement to be made by our General Partner acting alone;

• an amendment effected, necessitated or contemplated by an agreement of merger, consolidation or other combination agreement that has been approved under the terms of our Limited Partnership Agreement;

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• any amendment that in the sole discretion of our General Partner is necessary or appropriate to reflect and account for the formation by our partnership of, or its investment in, any corporation, partnership, joint venture, limited liability company or other entity, as otherwise permitted by our Limited Partnership Agreement;

• a change in our partnership’s fiscal year and related changes; or

• any other amendments substantially similar to any of the matters described directly above.

In addition, our General Partner may make amendments to our Limited Partnership Agreement without the approval of any limited partner if those amendments, in the discretion of our General Partner:

• do not adversely affect our partnership’s limited partners considered as a whole (including any particular class of partnership interests as compared to other classes of partnership interests) in any material respect;

• are necessary or appropriate to satisfy any requirements, conditions or guidelines contained in any opinion, directive, order, ruling or regulation of any governmental agency or judicial authority;

• are necessary or appropriate to facilitate the trading of our units or preferred units or to comply with any rule, regulation, guideline or requirement of any securities exchange on which our units or preferred units are or will be listed for trading;

• are necessary or appropriate for any action taken by our General Partner relating to splits or combinations of units or preferred units under the provisions of our Limited Partnership Agreement; or

• are required to effect the intent expressed in the provisions of our Limited Partnership Agreement or are otherwise contemplated by our Limited Partnership Agreement.

Opinion of Counsel and Limited Partner Approval

Our General Partner will not be required to obtain an opinion of counsel that an amendment will not result in a loss of limited liability to the limited partners if one of the amendments described above under “—No Limited Partner Approval” should occur. No other amendments to our limited partnership agreement will become effective without the approval of holders of at least 90% of our units, unless our partnership obtains an opinion of counsel to the effect that the amendment will not cause our partnership to be treated as an association taxable as a corporation or otherwise taxable as an entity for tax purposes (provided that for U.S. tax purposes our General Partner has not made the election described below under “—Election to be Treated as a Corporation”) or affect the limited liability of any of our partnership’s limited partners under the Bermuda Limited Partnership Act or the Bermuda Exempted Partnerships Act.

Subject to the terms of any preferred units outstanding, in addition to the above restrictions, any amendment that would have a material adverse effect on the rights or preferences of any type or class of partnership interests in relation to other classes of partnership interests will also require the approval of the holders of at least a majority of the outstanding partnership interests of the class so affected.

In addition, any amendment that reduces the voting percentage required to take any action must be approved by the affirmative vote of limited partners whose aggregate outstanding voting units constitute not less than the voting requirement sought to be reduced.

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Merger, Sale or Other Disposition of Assets

Any merger, consolidation or other combination of our partnership requires the prior approval of our General Partner who has no duty or obligation to provide any such approval. Our limited partnership agreement generally prohibits our General Partner, without the prior approval of the holders of a majority of our units, from causing our partnership to, among other things, sell, exchange or otherwise dispose of all or substantially all of our partnership’s assets in a single transaction or a series of related transactions, including by way of merger, consolidation or other combination, or approving on our partnership’s behalf the sale, exchange or other disposition of all or substantially all of the assets of our partnership’s subsidiaries. However, our General Partner in its sole discretion may mortgage, pledge, hypothecate or grant a security interest in all or substantially all of our partnership’s assets (including for the benefit of persons other than our partnership or our partnership’s subsidiaries) without that approval. Our General Partner may also sell all or substantially all of our partnership’s assets under any forced sale of any or all of our partnership’s assets pursuant to the foreclosure or other realization upon those encumbrances without that approval.

If conditions specified in our Limited Partnership Agreement are satisfied, our General Partner may convert or merge our partnership into, or convey some or all of our partnership’s assets to, a newly formed entity if the sole purpose of that merger or conveyance is to effect a mere change in our partnership’s legal form into another limited liability entity. Holders of partnership interests are not entitled to dissenters’ rights of appraisal under our Limited Partnership Agreement or the Bermuda Limited Partnership Act or the Bermuda Exempted Partnerships Act in the event of a merger or consolidation, a sale of substantially all of our assets or any other transaction or event.

Election to be Treated as a Corporation

If our General Partner determines that it is no longer in our partnership’s best interests to continue as a partnership for U.S. federal income tax purposes, our General Partner may elect to treat our partnership as an association or as a publicly traded partnership taxable as a corporation for U.S. federal (and applicable state) income tax purposes.

Termination and Dissolution

Our partnership will terminate upon the earlier to occur of (i) the date on which all of our partnership’s assets have been disposed of or otherwise realized by our partnership and the proceeds of such disposals or realizations have been distributed to partners, (ii) the service of notice by our General Partner, with the special approval of a majority of its independent directors, that in its opinion the coming into force of any law, regulation or binding authority has or will render illegal or impracticable the continuation of our partnership, and (iii) at the election of our General Partner, if our partnership, as determined by our General Partner, is required to register as an “investment company” under the Investment Company Act or similar legislation in other jurisdictions.

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Our partnership will be dissolved upon the withdrawal of our General Partner as the general partner of our partnership (unless Brookfield becomes the general partner as described in the following sentence or the withdrawal is effected in compliance with the provisions of our Limited Partnership Agreement that are described below under “—Withdrawal of Our General Partner”) or the entry by a court of competent jurisdiction of a decree of judicial dissolution of our partnership or an order to wind up or liquidate our General Partner. Our partnership will be reconstituted and continue without dissolution if within 30 days of the date of dissolution (and so long as a notice of dissolution has not been filed with the Bermuda Monetary Authority), Brookfield executes a transfer deed pursuant to which it becomes the general partner and assumes the rights and undertakes the obligations of the general partner and our partnership receives an opinion of counsel that the admission of Brookfield as general partner will not result in the loss of the limited liability of any limited partner.

Liquidation and Distribution of Proceeds

Upon our dissolution, unless our partnership is continued as a new limited partnership, the liquidator authorized to wind up our partnership’s affairs will, acting with all of the powers of our General Partner that the liquidator deems necessary or appropriate in its judgment, liquidate our partnership’s assets and apply the proceeds of the liquidation first, to discharge our partnership’s liabilities as provided in our Limited Partnership Agreement and by law, second to holders of any Class A Preferred Units in accordance with the terms of such units and thereafter to the partners holding units pro rata according to the percentages of their respective partnership interests as of a record date selected by the liquidator. The liquidator may defer liquidation of our partnership’s assets for a reasonable period of time or distribute assets to partners in kind if it determines that an immediate sale or distribution of all or some of our partnership’s assets would be impractical or would cause undue loss to the partners.

Withdrawal of Our General Partner

Our General Partner may withdraw as general partner without first obtaining approval of our unitholders and preferred unitholders by giving 90 days’ advance notice, and that withdrawal will not constitute a violation of our Limited Partnership Agreement.

Upon the withdrawal of our General Partner, the holders of a majority of the voting power of our outstanding units may select a successor to that withdrawing general partner. If a successor is not elected, or is elected but an opinion of counsel regarding limited liability, tax matters and the Investment Company Act (and similar legislation in other jurisdictions) cannot be obtained, our partnership will be dissolved, wound up and liquidated. See “—Termination and Dissolution” above.

In the event of withdrawal of a general partner where that withdrawal violates our Limited Partnership Agreement, a successor general partner will have the option to purchase the general partnership interest of the departing general partner for a cash payment equal to its fair market value. Under all other circumstances where a general partner withdraws, the departing general partner will have the option to require the successor general partner to purchase the general partnership interest of the departing general partner for a cash payment equal to its fair market value. In each case, this fair market value will be determined by agreement between the departing general partner and the successor general partner. If no agreement is reached within 30 days of the general partner’s departure, an independent investment banking firm or other independent expert selected by the departing general partner and the successor general partner will determine the fair market value. If the departing general partner and the successor general partner cannot agree upon an expert within 45 days of the general partner’s departure, then an expert chosen by agreement of the experts selected by each of them will determine the fair market value.

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If the option described above is not exercised by either the departing general partner or the successor general partner, the departing general partner’s general partnership interests will automatically convert into units pursuant to a valuation of those interests as determined by an investment banking firm or other independent expert selected in the manner described in the preceding paragraph.

Transfer of the General Partnership Interest

Our General Partner may transfer all or any part of its general partnership interests without first obtaining approval of any unitholder or preferred unitholder. As a condition of this transfer, the transferee must assume the rights and duties of our General Partner to whose interest that transferee has succeeded, agree to be bound by the provisions of our Limited Partnership Agreement and furnish an opinion of counsel regarding limited liability, tax matters, and the Investment Company Act (and similar legislation in other jurisdictions). Any transfer of the general partnership interest is subject to prior notice to and approval of the relevant Bermuda regulatory authorities. At any time, the members of our General Partner may sell or transfer all or part of their shares in our General Partner without the approval of the unitholders or preferred unitholders.

Partnership Name

If our General Partner ceases to be the general partner of our partnership and our new general partner is not an affiliate of Brookfield, our partnership will be required by our Limited Partnership Agreement to change the name of our partnership to a name that does not include “Brookfield” and which could not be capable of confusion in any way with such name. Our Limited Partnership Agreement explicitly provides that this obligation shall be enforceable and waivable by our General Partner notwithstanding that it may have ceased to be the general partner of our partnership.

Transactions with Interested Parties

Our General Partner, the Service Provider and their respective partners, members, shareholders, directors, officers, employees and shareholders, which we refer to as “interested parties,” may become limited partners or beneficially interested in limited partners and may hold, dispose of or otherwise deal with our units or preferred units with the same rights they would have if our General Partner was not a party to our Limited Partnership Agreement. An interested party will not be liable to account either to other interested parties or to our partnership, our partnership’s partners or any other persons for any profits or benefits made or derived by or in connection with any such transaction.

Our Limited Partnership Agreement permits an interested party to sell investments to, purchase assets from, vest assets in and enter into any contract, arrangement or transaction with our partnership, the Holding LP, any of the Holding Entities, any operating entity or any other holding vehicle established by our partnership and may be interested in any such contract, transaction or arrangement and shall not be liable to account either to our partnership, the Holding LP, any of the Holding Entities, any operating entity or any other holding vehicle established by our partnership or any other person in respect of any such contract, transaction or arrangement, or any benefits or profits made or derived therefrom, by virtue only of the relationship between the parties concerned, subject to any approval requirements that are contained in our conflicts protocol. See Item 7.B “Related Party Transactions—Conflicts of Interest and Fiduciary Duties.”

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Outside Activities of Our General Partner; Conflicts of Interest

Under our Limited Partnership Agreement, our General Partner is required to maintain as its sole activity the role of general partner of our partnership. Our General Partner is not permitted to engage in any activity or incur or guarantee any debts or liabilities except in connection with or incidental to its performance as general partner or incurring, guaranteeing, acquiring, owning or disposing of debt or equity securities of the Holding LP, a Holding Entity or any other holding vehicle established by our partnership.

Our Limited Partnership Agreement provides that each person who is entitled to be indemnified by our partnership (other than our General Partner), as described below under “—Indemnification; Limitation on Liability,” has the right to engage in businesses of every type and description and other activities for profit, and to engage in and possess interests in business ventures of any and every type or description, irrespective of whether (i) such activities are similar to our affairs or activities or (ii) such affairs and activities directly compete with, or disfavour or exclude, our General Partner, our partnership, the Holding LP, any Holding Entity, any operating entity or any other holding vehicle established by our partnership. Such business interests, activities and engagements will be deemed not to constitute a breach of our Limited Partnership Agreement or any duties stated or implied by law or equity, including fiduciary duties, owed to any of our General Partner, our partnership, the Holding LP, any Holding Entity, any operating entity and any other holding vehicle established by our partnership (or any of their respective investors), and shall be deemed not to be a breach of our General Partner’s fiduciary duties or any other obligation of any type whatsoever of our General Partner. None of our General Partner, our partnership, the Holding LP, any Holding Entity, any operating entity, any other holding vehicle established by our partnership or any other person shall have any rights by virtue of our Limited Partnership Agreement or the partnership relationship established thereby or otherwise in any business ventures of any person who is entitled to be indemnified by our partnership as described below under “—Indemnification; Limitation on Liability.”

Our General Partner and the other indemnified persons described in the preceding paragraph do not have any obligation under our Limited Partnership Agreement or as a result of any duties stated or implied by law or equity, including fiduciary duties, to present business or investment opportunities to our partnership, the Holding LP, any Holding Entity, any operating entity or any other holding vehicle established by our partnership. These provisions will not affect any obligation of an indemnified person to present business or investment opportunities to our partnership, the Holding LP, any Holding Entity, any operating entity or any other holding vehicle established by our partnership pursuant to a separate written agreement between such persons.

Any conflicts of interest and potential conflicts of interest that are approved by a majority of our General Partner’s independent directors from time-to-time will be deemed approved by all partners. Pursuant to our conflicts protocol, independent directors may grant approvals for any of the transactions described above in the form of general guidelines, policies or procedures in which case no further special approval will be required in connection with a particular transaction or matter permitted thereby. See Item 7.B “Related Party Transactions—Conflicts of Interest and Fiduciary Duties.”

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Indemnification; Limitations on Liability

Under our Limited Partnership Agreement, our partnership is required to indemnify to the fullest extent permitted by law our General Partner, the Service Provider and any of their respective affiliates (and their respective officers, directors, agents, shareholders, partners, members and employees), any person who serves on a governing body of the Holding LP, a Holding Entity, operating entity or any other holding vehicle established by our partnership and any other person designated by our General Partner as an indemnified person, in each case, against all losses, claims, damages, liabilities, costs or expenses (including legal fees and expenses), judgments, fines, penalties, interest, settlements or other amounts arising from any and all claims, demands, actions, suits or proceedings, incurred by an indemnified person in connection with our investments and activities or by reason of their holding such positions, except to the extent that the claims, liabilities, losses, damages, costs or expenses are determined to have resulted from the indemnified person’s bad faith, fraud or willful misconduct, or in the case of a criminal matter, action that the indemnified person knew to have been unlawful. In addition, under our Limited Partnership Agreement, (i) the liability of such persons has been limited to the fullest extent permitted by law, except to the extent that their conduct involves bad faith, fraud or willful misconduct, or in the case of a criminal matter, action that the indemnified person knew to have been unlawful and (ii) any matter that is approved by the independent directors of our General Partner will not constitute a breach of our Limited Partnership Agreement or any duties stated or implied by law or equity, including fiduciary duties. Our Limited Partnership Agreement requires us to advance funds to pay the expenses of an indemnified person in connection with a matter in which indemnification may be sought until it is determined that the indemnified person is not entitled to indemnification.

Accounts, Reports and Other Information

Our partnership prepares its financial statements in accordance with IFRS. Our partnership’s financial statements must be made publicly available together with a statement of the accounting policies used in their preparation, such information as may be required by applicable laws and regulations and such information as our General Partner deems appropriate. Our partnership’s annual financial statements must be audited by an independent accountant firm of international standing and made publicly available within such period of time as is required to comply with applicable laws and regulations, including any rules of any applicable securities exchange. Our partnership’s quarterly financial statements may be unaudited and are made available publicly as and within the time period required by applicable laws and regulations.

Our General Partner is also required to use commercially reasonable efforts to prepare and send to the limited partners of our partnership on an annual basis, additional information regarding our partnership, including Schedule K-1 (or equivalent) and information related to the passive foreign investment company status of any non-U.S. corporation that we control and, where reasonably possible, any other non-U.S. corporation in which we hold an interest. However, unitholders and preferred unitholders that do not ordinarily have U.S. federal tax filing requirements will not receive a Schedule K-1 and related information unless such unitholders and preferred unitholders request it within 60 days after the close of each calendar year. Our General Partner will, where reasonably possible, prepare and send information required by the non-U.S. limited partners of our partnership for U.S. federal income tax reporting purposes, including information related to investments in “U.S. real property interests,” as that term is defined in Section 897 of the U.S. Internal Revenue Code. Our General Partner will also, where reasonably possible and applicable, prepare and send information required by limited partners of our partnership for Canadian federal income tax purposes.

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Governing Law; Submission to Jurisdiction

Our Limited Partnership Agreement is governed by and will be construed in accordance with the laws of Bermuda. Under our Limited Partnership Agreement, each of our partnership’s partners (other than governmental entities prohibited from submitting to the jurisdiction of a particular jurisdiction) will submit to the non-exclusive jurisdiction of any court in Bermuda in any dispute, suit, action or proceeding arising out of or relating to our Limited Partnership Agreement. Each partner waives, to the fullest extent permitted by law, any immunity from jurisdiction of any such court or from any legal process therein and further waives, to the fullest extent permitted by law, any claim of inconvenient forum, improper venue or that any such court does not have jurisdiction over the partner. Any final judgment against a partner in any proceedings brought in a court in Bermuda will be conclusive and binding upon the partner and may be enforced in the courts of any other jurisdiction of which the partner is or may be subject, by suit upon such judgment. The foregoing submission to jurisdiction and waivers will survive the dissolution, liquidation, winding up and termination of our partnership.

Transfers of Units

We are not required to recognize any transfer of our units or preferred units until certificates, if any, evidencing such units are surrendered for registration of transfer. Each person to whom a unit or preferred unit is transferred (including any nominee holder or an agent or representative acquiring such unit for the account of another person) will be admitted to our partnership as a partner with respect to the unit or preferred unit so transferred subject to and in accordance with the terms of our Limited Partnership Agreement. Any transfer of a unit or preferred unit will not entitle the transferee to share in the profits and losses of our partnership, to receive distributions, to receive allocations of income, gain, loss, deduction or credit or any similar item or to any other rights to which the transferor was entitled until the transferee becomes a partner and a party to our Limited Partnership Agreement.

By accepting a unit or preferred unit for transfer in accordance with our Limited Partnership Agreement, each transferee will be deemed to have:

• executed our Limited Partnership Agreement and become bound by the terms thereof;

• granted an irrevocable power of attorney to our General Partner and any officer thereof to act as such partner’s agent and attorney-in-fact to execute, swear to, acknowledge, deliver, file and record in the appropriate public offices all (i) all agreements, certificates, documents and other instruments relating to the existence or qualification of our partnership as an exempted limited partnership (or a partnership in which the limited partners have limited liability) in Bermuda and in all jurisdictions in which our partnership may conduct activities and affairs or own property; any amendment, change, modification or restatement of our Limited Partnership Agreement, subject to the requirements of our Limited Partnership Agreement; the dissolution and liquidation of our partnership; the admission, withdrawal or removal of any partner of our partnership or any capital contribution of any partner of our partnership; the determination of the rights, preferences and privileges of any class or series of units or other partnership interests of our partnership, and to a merger or consolidation of our partnership; and (ii) subject to the requirements of our Limited Partnership Agreement, all ballots, consents, approvals, waivers, certificates, documents and other instruments necessary or appropriate, in the sole discretion of our General Partner or the liquidator of our partnership, to make, evidence, give, confirm or ratify any voting consent, approval, agreement or other action that is made or given by our partnership’s partners or is consistent with the terms of our Limited Partnership Agreement or to effectuate the terms or intent of our Limited Partnership Agreement;

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• made the consents and waivers contained in our Limited Partnership Agreement, including with respect to the approval of the transactions and agreements entered into in connection with our formation and the spin-off; and

• ratified and confirmed all contracts, agreements, assignments and instruments entered into on behalf of the partnership in accordance with our Limited Partnership Agreement.

The transfer of any unit or preferred unit and the admission of any new partner to our partnership will not constitute any amendment to our Limited Partnership Agreement.

Transfer Agent and Registrar

Computershare Inc. in Canton, Massachusetts, U.S.A. and Computershare Investor Services Inc. in Toronto, Ontario, Canada have been appointed to act as transfer agent and registrar for the purpose of registering our units and Class A Preferred Units, respectively, and transfers of our units and Class A Preferred Units, respectively, as provided in our Limited Partnership Agreement.

Description of the Holding LP’s Limited Partnership Agreement

The following is a description of the material terms of the Holding LP’s limited partnership agreement, as amended, and is qualified in its entirety by reference to all of the provisions of such agreement, as amended from time to time. Holders of units in our partnership are not partners of the Holding LP and do not have any rights under its limited partnership agreement. However, our partnership is the managing general partner of the Holding LP and is responsible for the management and control of the Holding LP.

Because this description is only a summary of the terms of the agreement, it does not necessarily contain all of the information that you may find useful. For more complete information, you should read the Holding LP’s limited partnership agreement, as amended from time to time, which is available electronically on the website of the Securities and Exchange Commission at www.sec.gov and on our SEDAR profile at www.sedar.com and will be made available to our unitholders and preferred unitholders as described under Item 10.C “Material Contracts” and Item 10.H “Documents on display.”

During 2017, the limited partnership agreement of the Holding LP was amended to reclassify the special partner as a general partner of the Holding LP. In connection with the reclassification, the special partner delegated to our partnership, as managing general partner of the Holding LP, all of the rights, powers and authority granted to it as a general partner under applicable law. Accordingly, all management powers over the activities and affairs of the Holding LP continue to be exclusively vested in our partnership, except as expressly otherwise provided in the limited partnership agreement of the Holding LP.

Formation and Duration

The Holding LP is a Bermuda exempted limited partnership registered under the Bermuda Limited Partnership Act and the Bermuda Exempted Partnerships Act. The Holding LP has a perpetual existence and will continue as a limited liability partnership unless the partnership is terminated or dissolved in accordance with its limited partnership agreement.

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Nature and Purpose

Under its limited partnership agreement, the purpose of the Holding LP is to: acquire and hold interests in the Holding Entities and, subject to the approval of our partnership in its capacity as managing general partner of the Holding LP, any other entity; engage in any activity related to the capitalization and financing of the Holding LP’s interests in such entities; and engage in any other activity that is incidental to or in furtherance of the foregoing and that is approved by our partnership in its capacity as managing general partner of the Holding LP and that lawfully may be conducted by a limited partnership organized under the Bermuda Limited Partnership Act and our Limited Partnership Agreement.

Units

As of the date of this annual report on Form 20-F, the Holding LP has four classes of units: Special General Partner Units, Redeemable Partnership Units, Managing General Partner Units and Holding LP Class A Preferred Units. Holders of units are not entitled to the withdrawal or return of capital contributions in respect of their units, except to the extent, if any, that distributions are made to such holders pursuant to the Holding LP’s limited partnership agreement or upon the liquidation of the Holding LP or as otherwise required by applicable law. Except to the extent expressly provided in the Holding LP’s limited partnership agreement, as amended from time to time, a holder of units does not have priority over any other holder of units, either as to the return of capital contributions or as to profits, losses or distributions. The Holding LP Class A Preferred Units rank senior to the other Holding LP units with respect to priority in the payment of distributions and in the distribution of the assets in the event of the liquidation, dissolution or winding-up of the Holding LP, whether voluntary or involuntary. Each series of Holding LP Class A Preferred Units ranks on a parity with every other series of the Holding LP Class A Preferred Units with respect to priority in the payment of distributions and in the distribution of the assets in the event of the liquidation, dissolution or winding-up of the Holding LP, whether voluntary or involuntary.

Issuance of Additional Partnership Interests

Subject to the rights of the holders of Holding LP Class A Preferred Units to approve issuances of additional partnership interests ranking senior to the Holding LP Class A Preferred Units with respect to priority in the payment of distributions and in the distribution of the assets in the event of the liquidation, dissolution or winding-up of the Holding LP, whether voluntary or involuntary, the Holding LP may issue additional partnership interests (including new classes of partnership interests and options, rights, warrants and appreciation rights relating to such interests) for any partnership purpose, at any time and on such terms and conditions as its managing general partner may determine. Any additional partnership interests may be issued in one or more classes, or one or more series of classes, with such designations, preferences, rights, powers and duties (which may be senior to existing classes and series of partnership interests) as our partnership in its capacity as managing general partner of the Holding LP may determine in its sole discretion.

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Redemption-Exchange Mechanism

At any time, one or more wholly-owned subsidiaries of Brookfield Asset Management that hold Redeemable Partnership Units will have the right to require the Holding LP to redeem for cash all or a portion of the Redeemable Partnership Units held by such subsidiary, subject to our partnership’s right of first refusal, as described below. Any such redeeming subsidiary may exercise its right of redemption by delivering a notice of redemption to the Holding LP and our partnership. After presentation for redemption, such redeeming subsidiary will receive, subject to our partnership’s right of first refusal, as described below, for each unit that is presented, cash in an amount equal to the market value of one of our units multiplied by the number of units to be redeemed (as determined by reference to the five day volume weighted average of the trading price of our units and subject to certain customary adjustments). Upon its receipt of the redemption notice, our partnership will have a right of first refusal entitling it, at its sole discretion, to elect to acquire all (but not less than all) units described in such notice and presented to the Holding LP for redemption in exchange for units on a one for one basis (subject to certain customary adjustments). Upon a redemption for cash, the holder’s right to receive distributions with respect to the Holding LP’s units so redeemed will cease.

Brookfield’s aggregate limited partnership interest in our partnership would be approximately 29.6% if it exercised its redemption right in full and our partnership exercised its right of first refusal on the Holding LP’s units redeemed (including the approximately 249,645 issued and outstanding units that Brookfield currently also owns). Brookfield’s total percentage interest in our partnership would be increased if it participates in the Holding LP’s distribution reinvestment plan.

Distributions

Subject to the rights of holders of Holding LP Class A Preferred Units to receive cumulative preferential cash distributions in accordance with their terms, distributions by the Holding LP will be made in the sole discretion of our partnership in its capacity as managing general partner of the Holding LP. The holders of a series of Holding LP Class A Preferred Units will be entitled to receive the same distribution as the holders of the corresponding series of Class A Preferred Units. However, our partnership will not be permitted to cause the Holding LP to make a distribution if the Holding LP does not have sufficient cash on hand to make the distribution, the distribution would render the Holding LP insolvent or if, in the opinion of its managing general partner, the distribution would leave the Holding LP with insufficient funds to meet any future or contingent obligations.

Except as set forth below, prior to the dissolution of the Holding LP, distributions of available cash (if any) in any given quarter will be made by the Holding LP as follows (being the “Regular Distribution Waterfall”):

• first, 100% of any available cash to our partnership until our partnership has been distributed an amount equal to our partnership’s expenses and outlays for the quarter properly incurred;

• second, 100% to the owners of the Holding LP’s preferred units, in proportion to their respective relative percentage of Holding LP preferred units held (determined by reference to the aggregate value of the issue price of the Holding LP preferred units held by each holder relative to the aggregate value of the issue price of all Holding LP preferred units then outstanding) until there has been distributed to such holder an amount equal to all preferential distributions to which the holder are entitled under the terms of the Holding LP preferred units then outstanding and any outstanding accrued and unpaid preferential distributions from prior periods;

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• third, 100% of any available cash then remaining to the owners of the Holding LP’s partnership interests, other than holders of Holding LP preferred units, pro rata to their percentage interests, until each holder of a partnership unit of the Holding LP, other than a holder of a Holding LP preferred unit, has received distributions during such quarter in an amount equal to $0.203, referred to as the First Distribution Threshold;

• fourth, 85% of any available cash then remaining to the owners of the Holding LP’s partnership interests, other than holders of Holding LP preferred units, pro rata to their percentage interests, and 15% to the holder of Special General Partner Units, until each holder of a partnership unit of the Holding LP, other than a holder of a Holding LP preferred unit, has received distributions during such quarter in an amount equal to $0.22, referred to as the Second Distribution Threshold; and

• thereafter, 75% of any available cash then remaining to the owners of the Holding LP’s partnership interests, other than holders of Holding LP preferred units, pro rata to their percentage interests, and 25% to the holder of Special General Partner Units.

On September 14, 2016, concurrent with completion of the Unit Split, the Managing General Partner Units, Special General Partner Units and Redeemable Partnership Units of the Holding LP were concurrently split to reflect the Unit Split. The limited partnership agreement was also amended on such date to adjust the First Distribution Threshold from $0.305 to $0.203 and the Second Distribution Threshold from $0.33 to $0.22 to reflect the Unit Split.

Set forth below is an example of how the incentive distributions described above are calculated on a quarterly and annualized basis going forward. The figures used below are for illustrative purposes only and are not indicative of Brookfield Infrastructure’s expectations.

		Quarterly			Annually
Incentive Distribution Calculation	Units (m)	Per Unit ($)	Total ($m)		Per Unit ($)	Total ($m)
Illustrative distribution		$0.470			$1.880
First distribution threshold		$0.203			$0.812
Total units of Holding LP	394
Total first distribution			$	80		$	320
Distribution in excess of first distribution threshold		$0.017			$0.068
Total units of Holding LP	394
Second distribution to partners			$	7		$	27
15% incentive distribution to the holder of Special General Partner Units			$	1		$	5
Total second distribution			$	8		$	32
Distribution in excess of second distribution threshold		$0.250			$1.000
Total units Holding LP	394
Third distribution to partners			$	99		$	394
25% incentive distribution to the holder of Special General Partner Units			$	33		$	131
Total third distribution			$	132		$	525
Total distributions to partners (including incentive distributions)			$	220		$	877
Total incentive distributions to the holder of Special General Partner Units			$	34		$	136

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The table below sets forth the incentive distributions for the years ended December 31, 2017, 2016 and 2015 paid to Infrastructure Special LP.

	Year ended December 31
US$ MILLIONS	2017		2016		2015
Incentive Distributions	$	113	$	80	$	64

Subject to the terms of any Holding LP preferred units outstanding, if, prior to the dissolution of the Holding LP, available cash is deemed by its managing general partner, in its sole discretion, to be (i) attributable to sales or other dispositions of the Holding LP’s assets and (ii) representative of unrecovered capital, then such available cash shall be distributed to the partners of the Holding LP, other than holders of Holding LP preferred units, in proportion to the unreturned capital attributable to the Holding LP’s partnership interests held by such partners until such time as the unreturned capital attributable to each such partnership interest is equal to zero. Thereafter, distributions of available cash made by the Holding LP (to the extent made prior to dissolution) will be made in accordance with the Regular Distribution Waterfall.

Upon the occurrence of an event resulting in the dissolution of the Holding LP, all cash and property of the Holding LP in excess of that required to discharge the Holding LP’s liabilities will be distributed as follows: (i) to the extent such cash and/or property is attributable to a realization event occurring prior to the event of dissolution, such cash and/or property will be distributed in accordance with the Regular Distribution Waterfall and/or the distribution waterfall applicable to unrecovered capital; and (ii) all other cash and/or property will be distributed in the manner set forth below.

• first, 100% to our partnership until our partnership has received an amount equal to the excess of (i) the amount of our partnership’s outlays and expenses incurred during the term of the Holding LP, over (ii) the aggregate amount of distributions received by our partnership pursuant to the first tier of the Regular Distribution Waterfall during the term of the Holding LP;

• second, 100% to the preferred unitholders pro rata in proportion to their respective relative percentage of Holding LP preferred units held (determined by reference to the aggregate value of the issue price of the Holding LP preferred units held by each preferred unitholder relative to the aggregate value of the issue price of all Holding LP preferred units then outstanding) until there has been distributed in respect of each Holding LP preferred unit outstanding an amount equal to any preferential distributions to which the preferred unitholders are entitled in the event of dissolution, liquidation, or winding-up of Holding LP under the terms of the Holding LP preferred units then outstanding (including any outstanding accrued and unpaid preferential distributions from prior periods);

• third, if there are Holding LP preferred units outstanding, an amount equal to the amount of cash or property held by the Holding LP at such time, that is attributable to a realization event occurring prior to the date of a dissolution event and that has been deemed by our partnership as capital surplus shall be distributed as though such amount has been deemed by our partnership to be (i) attributable to sales or other dispositions of the Holding LP’s assets and (ii) representative of unrecovered capital;

• fourth, 100% to the owners of the Holding LP’s partnership interests, other than holders of Holding LP preferred units, in proportion to their respective amounts of unrecovered capital in the Holding LP;

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• fifth, 100% to the owners of the Holding LP’s partnership interests, other than holders of Holding LP preferred units, pro rata to their percentage interests, until each holder of a Holding LP partnership unit, other than a Holding LP preferred unit, has received an amount equal to the excess of (i) the First Distribution Threshold for each quarter during the term of the Holding LP (subject to adjustment upon the subsequent issuance of additional partnership interests in the Holding LP), over (ii) the aggregate amount of distributions made in respect of the Holding LP’s partnership units, other than Holding LP preferred units, pursuant to the third tier of the Regular Distribution Waterfall during the term of the Holding LP (subject to adjustment upon the subsequent issuance of additional partnership interests in the Holding LP);

• sixth, 85% to the owners of the Holding LP’s partnership interests, other than holders of Holding LP preferred units, pro rata to their percentage interests, and 15% to the holder of Special General Partner Units, until each holder of a partnership unit of the Holding LP, other than Holding LP preferred units, has received an amount equal to the excess of (i) the Second Distribution Threshold less the First Distribution Threshold for each quarter during the term of the Holding LP (subject to adjustment upon the subsequent issuance of additional partnership interests in the Holding LP), over (ii) the aggregate amount of distributions made in respect of the partnership units of the Holding LP pursuant to the fourth tier of the Regular Distribution Waterfall during the term of the Holding LP (subject to adjustment upon the subsequent issuance of additional partnership interests in the Holding LP); and

• thereafter, 75% to the owners of the Holding LP’s partnership interests, other than holders of Holding LP preferred units, pro rata to their percentage interests, and 25% to the holder of Special General Partner Units.

Each partner’s percentage interest is determined by the relative portion of all outstanding partnership interests, other than any Holding LP preferred units, held by that partner from time to time and is adjusted upon and to reflect the issuance of additional partnership interests of the Holding LP. In addition, the unreturned capital attributable to each of the partnership interests, as well as certain of the distribution thresholds set forth above, may be adjusted pursuant to the terms of the limited partnership agreement of the Holding LP so as to ensure the uniformity of the economic rights and entitlements of (i) the previously outstanding partnership interests of the Holding LP, and (ii) the subsequently issued partnership interests of the Holding LP.

The limited partnership agreement of the Holding LP provides that, to the extent that any Holding Entity or any operating entity pays to Brookfield any comparable performance or incentive distribution, the amount of any incentive distributions paid to the holder of Special General Partner Units in accordance with the distribution entitlements described above will be reduced in an equitable manner to avoid duplication of distributions.

The holder of Special General Partner Units may elect, at its sole discretion, to reinvest incentive distributions in Redeemable Partnership Units.

No Management or Control

The Holding LP’s limited partners and special general partner, in their capacities as such, may not take part in the management or control of the activities and affairs of the Holding LP and do not have any right or authority to act for or to bind the Holding LP or to take part or interfere in the conduct or management of the Holding LP. To the extent that any such right or authority is vested in the special general partner by virtue of being a general partner of the Holding LP, the special general partner has delegated such right and authority to Holding LP’s managing general partner and agreed to not exercise such right or authority.

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Limited partners and the special general partner are not entitled to vote on matters relating to the Holding LP, although holders of units are entitled to consent to certain matters as described under “—Amendment of the Holding LP’s Limited Partnership Agreement,” “—Opinion of Counsel and Limited Partner Approval,” “—Merger, Sale or Other Disposition of Assets,” and “—Withdrawal of the General Partner” which may be effected only with the consent of the holders of the percentages of outstanding units specified below. For the purposes of any approval required from holders of the Holding LP’s units, if holders of Redeemable Partnership Units are entitled to vote, they will be entitled to one vote per unit held subject to a maximum number of votes equal to 49% of the total number of units of the Holding LP then issued and outstanding. Each unit shall entitle the holder thereof to one vote for the purposes of any approvals of holders of units. Except as otherwise provided by law or as set out in the provisions attached to any series of Holding LP Class A Preferred Units and except for meetings of the holders of Holding LP Class A Preferred Units as a class or meetings of the holders of a series thereof, the holders of a series of Holding LP Class A Preferred Units are not entitled to receive notice of, attend, or vote at any meeting of holders of units.

Meetings

Special meetings of the limited partners and special general partner of the Holding LP may be called by Holding LP’s managing general partner at a time and place outside of Canada determined by it on a date not less than 10 days nor more than 60 days after the mailing of notice of the meeting. Special meetings of the limited partners may also be called by holders of units owning 50% or more of the voting power of the outstanding partnership interests of the class or classes for which a meeting is proposed. For this purpose, the partnership interests outstanding do not include partnership interests owned by Holding LP’s managing general partner or Brookfield. Only holders of partnership interests of the Holding LP of record on the date set by its managing general partner (which may not be less than 10 days nor more than 60 days, before the meeting) are entitled to notice of any meeting.

Amendment of the Holding LP’s Limited Partnership Agreement

Amendments to the Holding LP’s limited partnership agreement may be proposed only by or with the consent of its managing general partner. To adopt a proposed amendment, other than the amendments discussed below that do not require approval of the limited partners or the special general partner, the managing general partner must seek approval of a majority of the Holding LP’s outstanding units required to approve the amendment or call a meeting of the limited partners to consider and vote upon the proposed amendment. Notwithstanding the above, in addition to any other approvals required by law, the approval of all amendments to the rights, privileges, restrictions and conditions attaching to the Holding LP Class A Preferred Units as a class and any other approval to be given by the holders of the Holding LP Class A Preferred Units may be (i) given by a resolution signed by the holders of Holding LP Class A Preferred Units owning not less than the percentage of the Holding LP Class A Preferred Units that would be necessary to authorize such action at a meeting of the holders of the Holding LP Class A Preferred Units at which all holders of the Holding LP Class A Preferred Units were present and voted or were represented by proxy, or (ii) passed by an affirmative vote of at least 66^2/3% of the votes cast at a meeting of holders of the Holding LP Class A Preferred Units duly called for that purpose and at which the holders of at least 25% of the outstanding Holding LP Class A Preferred Units are present or represented by proxy or, if no quorum is present at such meeting, at an adjourned meeting at which the holders of Holding LP Class A Preferred Units then present would form the necessary quorum. At any meeting of holders of Holding LP Class A Preferred Units as a class, each such holder shall be entitled to one vote in respect of each Holding LP Class A Preferred Unit held.

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Further, in addition to any other approvals required by law, the approval of all amendments to the rights, privileges, restrictions and conditions attaching to each series of Holding LP Class A Preferred Units, as a series, and any other approval to be given by the holders of each series of Holding LP Class A Preferred Units, as a series, may be (i) given by a resolution signed by the holders of the applicable series of Holding LP Class A Preferred Units owning not less than the percentage of such series of Holding LP Class A Preferred Units that would be necessary to authorize such action at a meeting of the holders of the applicable series of Holding LP Class A Preferred Units at which all holders of the applicable series of Holding LP Class A Preferred Units were present and voted or were represented by proxy, or (ii) passed by an affirmative vote of at least 66^2/3% of the votes cast at a meeting of holders of the applicable series of Holding LP Class A Preferred Units duly called for that purpose and at which the holders of at least 25% of the outstanding applicable series of Holding LP Class A Preferred Units are present or represented by proxy or, if no quorum is present at such meeting, at an adjourned meeting at which the holders of the applicable series of Holding LP Class A Preferred Units then present would form the necessary quorum. At any meeting of holders of a series of Holding LP Class A Preferred Units, as a series, each such holder shall be entitled to one vote in respect of the applicable Holding LP Class A Preferred Unit held.

Prohibited Amendments

No amendment may be made that would:

• enlarge the obligations of any limited partner of the Holding LP without its consent, except that any amendment that would have a material adverse effect on the rights or preferences of any class of partnership interests in relation to other classes of partnership interests may be approved by at least a majority of the type or class of partnership interests so affected; or

• enlarge the obligations of, restrict in any way any action by or rights of, or reduce in any way the amounts distributable, reimbursable or otherwise payable by the Holding LP to any general partner of the Holding LP or any of its affiliates without the consent of such general partner which may be given or withheld in its sole discretion.

The provision of the Holding LP’s limited partnership agreement preventing the amendments having the effects described directly above can be amended upon the approval of the holders of at least 90% of the outstanding units.

No Limited Partner or Special General Partner Approval

Subject to applicable law, the managing general partner may generally make amendments to the Holding LP’s limited partnership agreement without the approval of any limited partner or the special general partner to reflect:

• a change in the name of the partnership, the location of the partnership’s registered office or the partnership’s registered agent;

• the admission, substitution, withdrawal or removal of partners in accordance with the limited partnership agreement;

• a change that the managing general partner determines is necessary or appropriate for the partnership to qualify or to continue its qualification as a limited partnership or a partnership in which the limited partners have limited liability under the laws of any jurisdiction or to ensure that the Holding LP will not be treated as an association taxable as a corporation or otherwise taxed as an entity for tax purposes;

• an amendment that the managing general partner determines to be necessary or appropriate to address certain changes in tax regulations, legislation or interpretation;

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• an amendment that is necessary, in the opinion of counsel, to prevent the Holding LP or the managing general partner or its directors, officers, agents or trustees, from having a material risk of being in any manner subjected to the provisions of the Investment Company Act or similar legislation in other jurisdictions;

• an amendment that the managing general partner determines in its sole discretion to be necessary or appropriate for the creation, authorization or issuance of any class or series of partnership interests or options, rights, warrants or appreciation rights relating to partnership securities;

• any amendment expressly permitted in the Holding LP’s limited partnership agreement to be made by the managing general partner acting alone;

• an amendment effected, necessitated or contemplated by an agreement of merger, consolidation or other combination agreement that has been approved under the terms of the Holding LP’s limited partnership agreement;

• any amendment that in the sole discretion of the managing general partner is necessary or appropriate to reflect and account for the formation by the partnership of, or its investment in, any corporation, partnership, joint venture, limited liability company or other entity, as otherwise permitted by the Holding LP’s limited partnership agreement;

• a change in its fiscal year and related changes;

• any amendment concerning the computation or allocation of specific items of income, gain, expense or loss among the partners that, in the sole discretion of the managing general partner, is necessary or appropriate to (i) comply with the requirements of applicable law, (ii) reflect the partners’ interests in the Holding LP, or (iii) consistently reflect the distributions made by the Holding LP to the partners pursuant to the terms of the limited partnership agreement of the Holding LP;

• any amendment that in the sole discretion of the managing general partner, is necessary or appropriate to address any statute, rule, regulation, notice or announcement that affects or could affect the U.S. federal tax treatment of any allocation or distribution related to any interest of the managing general partner in the profits of Holding LP; and

• any other amendments substantially similar to any of the matters described directly above.

In addition, amendments to the Holding LP’s limited partnership agreement may be made by the managing general partner without the approval of any limited partner or the special general partner if those amendments, in the discretion of the managing general partner:

• do not adversely affect the Holding LP’s limited partners or the special general partner considered as a whole (including any particular class of partnership interests as compared to other classes of partnership interests) in any material respect;

• are necessary or appropriate to satisfy any requirements, conditions or guidelines contained in any opinion, directive, order, ruling or regulation of any governmental agency or judicial authority;

• are necessary or appropriate to comply with any rule, regulation, guideline or requirement of any securities exchange on which the limited partner interests are or will be listed for trading;

• are necessary or appropriate for any action taken by the managing general partner relating to splits or combinations of units under the provisions of the Holding LP’s limited partnership agreement; or

• are required to effect the intent expressed in the provisions of the Holding LP’s limited partnership agreement or are otherwise contemplated by the Holding LP’s limited partnership agreement.

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Opinion of Counsel and Limited Partner Approval

The managing general partner of the Holding LP will not be required to obtain an opinion of counsel that an amendment will not result in a loss of limited liability to the limited partners if one of the amendments described above under “—No Limited Partner Approval” should occur. No other amendments to the Holding LP’s limited partnership agreement will become effective without the approval of holders of at least 90% of the Holding LP’s units, unless it obtains an opinion of counsel to the effect that the amendment will not cause the Holding LP to be treated as an association taxable as a corporation or otherwise taxable as an entity for tax purposes (provided that for U.S. tax purposes its managing general partner has not made the election described below under “—Election to be Treated as a Corporation”), or affect the limited liability under the Bermuda Limited Partnership Act of any of the Holding LP’s limited partners.

Subject to the terms of any Holding LP preferred units outstanding, in addition to the above restrictions, any amendment that would have a material adverse effect on the rights or preferences of any type or class of partnership interests in relation to other classes of partnership interests will also require the approval of the holders of at least a majority of the outstanding partnership interests of the class so affected.

In addition, any amendment that reduces the voting percentage required to take any action must be approved by the affirmative vote of limited partners whose aggregate outstanding voting units constitute not less than the voting requirement sought to be reduced.

Election to be Treated as a Corporation

If, in the determination of the managing general partner, it is no longer in the Holding LP’s best interests to continue as a partnership for U.S. federal income tax purposes, the managing general partner may elect to treat the Holding LP as an association or as a publicly traded partnership taxable as a corporation for U.S. federal (and applicable state) income tax purposes.

Dissolution

The Holding LP shall dissolve and its affairs shall be wound up, upon the earlier of (i) the service of notice by the managing general partner, with the approval of a majority of the members of the independent directors of our General Partner, that, in the opinion of the managing general partner, the coming into force of any law, regulation or binding authority renders illegal or impracticable the continuation of the Holding LP; (ii) the election of the managing general partner if the Holding LP, as determined by the managing general partner, is required to register as an “investment company” under the Investment Company Act or similar legislation in other jurisdictions; (iii) the date that any general partner withdraws from the partnership where that withdrawal violates the Holding LP’s limited partnership agreement; (iv) the date on which any court of competent jurisdiction enters a decree of judicial dissolution of the Holding LP or an order to wind up or liquidate the managing general partner without the appointment of a successor; and (v) the date on which the managing general partner decides to dispose of, or otherwise realize proceeds in respect of, all or substantially all of the Holding LP’s assets in a single transaction or series of transactions.

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The Holding LP shall not dissolve if within 30 days of the date of dissolution resulting from the withdrawal of a general partner or dissolution of the managing general partner (and provided that a notice of dissolution with respect to the Holding LP has not been filed with the Bermuda Monetary Authority), any non-compliance with the terms of the Holding LP’s limited partnership agreement has been cured and, where the managing general partner has withdrawn or been dissolved, a successor managing general partner executes a transfer deed pursuant to which the successor managing general partner assumes the rights and undertakes the obligations of the original managing general partner, but only if the Holding LP receives an opinion of counsel that the admission of a new managing general partner will not result in the loss of limited liability of any limited partner of the Holding LP.

Withdrawal of the Managing General Partner

Our partnership may withdraw as managing general partner without first obtaining approval of unitholders or preferred unitholders by giving 90 days advance notice, and that withdrawal will not constitute a violation of the limited partnership agreement.

Upon the withdrawal of our partnership, the special general partner may select a successor to our partnership to act as managing general partner. If a successor is not elected, or is elected but an opinion of counsel regarding limited liability, tax matters and the Investment Company Act (and similar legislation in other jurisdictions) cannot be obtained, the Holding LP will be dissolved, wound up and liquidated. See “—Dissolution” above.

Our partnership may not be removed as managing general partner by the partners of Holding LP.

In the event of withdrawal of our partnership as the managing general partner where that withdrawal violates the Holding LP’s limited partnership agreement, a successor managing general partner will have the option to purchase the managing general partnership interest of our partnership for a cash payment equal to its fair market value. Under all other circumstances where our partnership withdraws, our partnership will have the option to require the successor managing general partner to purchase the managing general partnership interest of our partnership for a cash payment equal to its fair market value. In each case, this fair market value will be determined by agreement between our partnership and the successor managing general partner. If no agreement is reached within 30 days of our partnership’s departure, an independent investment banking firm or other independent expert selected by our partnership and the successor managing general partner will determine the fair market value. If our partnership and the successor managing general partner cannot agree upon an expert within 45 days of our partnership’s departure, then an expert chosen by agreement of the experts selected by each of them will determine the fair market value.

If the option described above is not exercised by either the departing managing general partner or the successor managing general partner, the departing managing general partner’s managing general partnership interests will automatically convert into units representing limited partner interests pursuant to a valuation of those interests as determined by an investment banking firm or other independent expert selected in the manner described in the preceding paragraph.

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Transfer of the Managing General Partnership Interest

Our partnership may transfer all or any part of its managing general partnership interests without first obtaining approval of any unitholder or preferred unitholder. As a condition of this transfer, the transferee must assume the rights and duties of the managing general partner to whose interest that transferee has succeeded, agree to be bound by the provisions of the Holding LP’s limited partnership agreement and furnish an opinion of counsel regarding limited liability, tax matters and the Investment Company Act (and similar legislation in other jurisdictions). Any transfer of the managing general partnership interest is subject to prior notice to and approval of the relevant Bermuda regulatory authority.

Transactions with Interested Parties

The managing general partner of the Holding LP, its affiliates and their respective partners, members, shareholders, directors, officers, employees and shareholders, which we refer to as “interested parties”, may become limited partners or beneficially interested in limited partners and may hold, dispose of or otherwise deal with units of the Holding LP with the same rights they would have if the managing general partner of the Holding LP were not a party to the limited partnership agreement of the Holding LP. An interested party will not be liable to account either to other interested parties or to the Holding LP, its partners or any other persons for any profits or benefits made or derived by or in connection with any such transaction.

The limited partnership agreement of the Holding LP permits an interested party to sell investments to, purchase assets from, vest assets in and enter into any contract, arrangement or transaction with the Holding LP, any of the Holding Entities, any operating entity or any other holding vehicle established by the Holding LP and may be interested in any such contract, transaction or arrangement and shall not be liable to account either to the Holding LP, any of the Holding Entities, any operating entity or any other holding vehicle established by the Holding LP or any other person in respect of any such contract, transaction or arrangement, or any benefits or profits made or derived therefrom, by virtue only of the relationship between the parties concerned, subject to our conflicts protocol.

Outside Activities of the Managing General Partner

In accordance with our limited partnership agreement, our partnership is authorized to: acquire and hold interests in the Holding LP and, subject to the approval of the General Partner, interests in any other entity; engage in any activity related to the capitalization and financing of our partnership’s interests in such entities; serve as the managing general partner of the Holding LP; and engage in any other activity that is incidental to or in furtherance of the foregoing and that is approved by our General Partner and that lawfully may be conducted by a limited partnership organized under the Bermuda Limited Partnership Act, the Bermuda Exempted Partnerships Act, and our limited partnership agreement.

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The Holding LP’s limited partnership agreement provides that each person who is entitled to be indemnified by the partnership, as described below under “—Indemnification; Limitations on Liability” will have the right to engage in businesses of every type and description and other activities for profit, and to engage in and possess interests in business ventures of any and every type or description, irrespective of whether (i) such businesses and activities are similar to our activities, or (ii) such businesses and activities directly compete with, or disfavour or exclude, the Holding LP, the managing general partner, any Holding Entity, operating entity, or any other holding vehicle established by the Holding LP. Such business interests, activities and engagements will be deemed not to constitute a breach of the limited partnership agreement or any duties stated or implied by law or equity, including fiduciary duties, owed to any of the Holding LP, the managing general partner, any Holding Entity, operating entity, and any other holding vehicle established by the Holding LP (or any of their respective investors), and shall be deemed not to be a breach of the managing general partner’s fiduciary duties or any other obligation of any type whatsoever of the managing general partner. None of the Holding LP, the managing general partner, any Holding Entity, operating entity, any other holding vehicle established by the Holding LP or any other person shall have any rights by virtue of the Holding LP’s limited partnership agreement or the partnership relationship established thereby or otherwise in any business ventures of any person who is entitled to be indemnified by the Holding LP as described below under “—Indemnification; Limitations on Liability.”

Our partnership and the other indemnified persons described in the preceding paragraph will not have any obligation under the Holding LP’s limited partnership agreement or as a result of any duties stated or implied by law or equity, including fiduciary duties, to present business or investment opportunities to the Holding LP, any Holding Entity, operating entity, or any other holding vehicle established by the Holding LP. These provisions will not affect any obligation of such indemnified person to present business or investment opportunities to the Holding LP, any Holding Entity, operating entity or any other holding vehicle established by the Holding LP pursuant to a separate written agreement between such persons.

Account Reports

The Holding LP prepares its financial statements in accordance with IFRS. See also the information contained in this annual report on Form 20-F under Item 10.B “Memorandum and Articles of Association—Description of Our Units, Preferred Units and Our Limited Partnership Agreement—Accounts, Reports and Other Information”.

The managing general partner of the Holding LP is also required to use commercially reasonable efforts to prepare and send to the Holding LP’s limited partners and the special general partner on an annual basis, additional information regarding the Holding LP, including Schedule K-1 (or equivalent) and information related to the passive foreign investment company status of any non-U.S. corporation that we control and, where reasonably possible, any other non-U.S. corporation in which we hold an interest. The managing general partner of the Holding LP will also, where reasonably possible, prepare and send information required by the Holding LP’s non-U.S. limited partners for U.S. federal income tax reporting purposes, including information related to investments in “U.S. real property interests,” as that term is defined in Section 897 of the U.S. Internal Revenue Code. The managing general partner will also, where reasonably possible and applicable, prepare and send information required by the Holding LP’s limited partners for Canadian federal income tax purposes.

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Indemnification; Limitations on Liability

Under the Holding LP’s limited partnership agreement, it is required to indemnify to the fullest extent permitted by law the managing general partner, the special general partner, and any of its respective affiliates (and their respective officers, directors, agents, shareholders, partners, members and employees), any person who serves on a governing body of the Holding LP, a Holding Entity, operating entity or any other holding vehicle established by our partnership and any other person designated by the managing general partner as an indemnified person, in each case, against all losses, claims, damages, liabilities, costs or expenses (including legal fees and expenses), judgments, fines, penalties, interest, settlements or other amounts arising from any and all claims, demands, actions, suits or proceedings, incurred by an indemnified person in connection with its business, investments and activities or by reason of their holding such positions, except to the extent that the claims, liabilities, losses, damages, costs or expenses are determined to have resulted from the indemnified person’s bad faith, fraud or willful misconduct, or in the case of a criminal matter, action that the indemnified person knew to have been unlawful. In addition, under the Holding LP’s limited partnership agreement, (i) the liability of such persons has been limited to the fullest extent permitted by law, except to the extent that their conduct involves bad faith, fraud or willful misconduct, or in the case of a criminal matter, action that the indemnified person knew to have been unlawful and (ii) any matter that is approved by the independent directors will not constitute a breach of any duties stated or implied by law or equity, including fiduciary duties. The Holding LP’s limited partnership agreement requires it to advance funds to pay the expenses of an indemnified person in connection with a matter in which indemnification may be sought until it is determined that the indemnified person is not entitled to indemnification.

Governing Law

The Holding LP’s limited partnership agreement is governed by and will be construed in accordance with the laws of Bermuda.

10.C    MATERIAL CONTRACTS

The following are the only material contracts, other than contracts entered into in the ordinary course of business, to which we have been a party within the past two years:

1. Amended and Restated Master Services Agreement by and among the Service Recipients, Brookfield Asset Management Inc., the Service Provider and others described under Item 6.A. “Directors and Senior Management—Our Master Services Agreement”;

2. Amended and Restated Limited Partnership Agreement of our partnership, as amended from time to time, described under Item 10.B. “Description of our Units, Preferred Units and our Limited Partnership Agreement”;

3. Amended and Restated Limited Partnership Agreement of the Holding LP, as amended from time to time, described under Item 10.B. “Description of the Holding LP’s Limited Partnership Agreement”;

4. Amended and Restated Relationship Agreement by and among our partnership, the Holding LP, the Holding Entities, the Service Provider and Brookfield Asset Management Inc. described under Item 7.B. “Related Party Transactions—Relationship Agreement”;

5. Registration Rights Agreement, dated December 4, 2007, between Brookfield Infrastructure Partners L.P. and Brookfield Asset Management Inc described under Item 7.B “Related Party Transactions—Registration Rights Agreement”;

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6. Indenture by and among Brookfield Infrastructure Finance ULC, Brookfield Infrastructure Finance LLC, Brookfield Infrastructure Finance Limited, Brookfield Infrastructure Finance Pty Ltd and Computershare Trust Company of Canada, described in Note 19, “Subsidiary Public Issuers” in our financial statements included in this annual report on Form 20-F;

7. Second Supplemental Indenture dated March 11, 2015 between Brookfield Infrastructure Finance ULC, Brookfield Infrastructure Finance LLC, Brookfield Infrastructure Finance Limited, Brookfield Infrastructure Finance Pty Ltd and Computershare Trust Company of Canada, described in Note 19, “Subsidiary Public Issuers” in our financial statements included in this annual report on Form 20-F;

8. Guarantee dated March 11, 2015 by Brookfield Infrastructure Partners L.P., Brookfield Infrastructure L.P., BIP Bermuda Holdings I Limited, Brookfield Infrastructure Holdings (Canada) Inc. and Brookfield Infrastructure US Holdings I Corporation in favour of Computershare Trust Company of Canada, described in Note 19, “Subsidiary Public Issuers” in our financial statements included in this annual report on Form 20-F;

9. Third Supplemental Indenture dated October 30, 2015 between Brookfield Infrastructure Finance ULC, Brookfield Infrastructure Finance LLC, Brookfield Infrastructure Finance Limited, Brookfield Infrastructure Finance Pty Ltd and Computershare Trust Company of Canada, described in Note 19, “Subsidiary Public Issuers” in our financial statements included in this annual report on Form 20-F;

10. Guarantee dated October 30, 2015 by Brookfield Infrastructure Partners L.P., Brookfield Infrastructure L.P., BIP Bermuda Holdings I Limited, Brookfield Infrastructure Holdings (Canada) Inc. and Brookfield Infrastructure US Holdings I Corporation in favour of Computershare Trust Company of Canada, described in Note 19, “Subsidiary Public Issuers” in our financial statements included in this annual report on Form 20-F;

11. Fourth Supplemental Indenture dated October 30, 2015 between Brookfield Infrastructure Finance ULC, Brookfield Infrastructure Finance LLC, Brookfield Infrastructure Finance Limited, Brookfield Infrastructure Finance Pty Ltd and Computershare Trust Company of Canada, described in Note 19, “Subsidiary Public Issuers” in our financial statements included in this annual report on Form 20-F;

12. Guarantee dated October 30, 2015 by Brookfield Infrastructure Partners L.P., Brookfield Infrastructure L.P., BIP Bermuda Holdings I Limited, Brookfield Infrastructure Holdings (Canada) Inc. and Brookfield Infrastructure US Holdings I Corporation in favour of Computershare Trust Company of Canada, described in Note 19, “Subsidiary Public Issuers” in our financial statements included in this annual report on Form 20-F;

13. Fifth Supplemental Indenture dated February 22, 2017 between Brookfield Infrastructure Finance ULC, Brookfield Infrastructure Finance LLC, Brookfield Infrastructure Finance Limited, Brookfield Infrastructure Finance Pty Ltd and Computershare Trust Company of Canada, described in Note 19, “Subsidiary Public Issuers” in our financial statements included in this annual report on Form 20-F; and

14. Guarantee dated February 22, 2017 by Brookfield Infrastructure Partners L.P., Brookfield Infrastructure L.P., BIP Bermuda Holdings I Limited, Brookfield Infrastructure Holdings (Canada) Inc. and Brookfield Infrastructure US Holdings I Corporation in favour of Computershare Trust Company of Canada, described in Note 19, “Subsidiary Public Issuers” in our financial statements included in this annual report on Form 20-F.

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10.D    EXCHANGE CONTROLS

There are currently no governmental laws, decrees, regulations or other legislation of Bermuda or the United States which restrict the import or export of capital or the remittance of dividends, interest or other payments to non-residents of Bermuda or the United States holding the Company’s securities, except as otherwise described in this annual report on Form 20-F under Item 10.E “Taxation.”

10.E    TAXATION

The following summary discusses certain material United States, Canadian, Australian and Bermudian tax considerations related to the holding and disposition of our units as of the date hereof. Holders of our units are advised to consult their own tax advisors concerning the consequences under the tax laws of the country of which they are resident or in which they are otherwise subject to tax of making an investment in our units.

CERTAIN MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS

This summary discusses certain material United States federal income tax considerations to unitholders relating to the receipt, holding, and disposition of our units as of the date hereof. This summary is based on provisions of the U.S. Internal Revenue Code, on the regulations promulgated thereunder (“Treasury Regulations”), and on published administrative rulings, judicial decisions, and other applicable authorities, all as in effect on the date hereof and all of which are subject to change at any time, possibly with retroactive effect. This summary is necessarily general and may not apply to all categories of investors, some of whom may be subject to special rules, including, without limitation, persons that own (directly or indirectly, applying certain attribution rules) 5% or more of our units, dealers in securities or currencies, financial institutions or financial services entities, mutual funds, life insurance companies, persons that hold our units as part of a straddle, hedge, constructive sale or conversion transaction with other investments, persons whose units are loaned to a short seller to cover a short sale of units, persons whose functional currency is not the U.S. dollar, persons who have elected mark-to-market accounting, persons who hold our units through a partnership or other entity treated as a pass-through entity for U.S. federal income tax purposes, persons for whom our units are not a capital asset, persons who are liable for the alternative minimum tax, and certain U.S. expatriates or former long-term residents of the United States. This summary does not address any tax consequences to holders of our preferred units. Tax-exempt organizations are addressed separately below. The actual tax consequences of the ownership and disposition of our units will vary depending on your individual circumstances.

For purposes of this discussion, a “U.S. Holder” is a beneficial owner of one or more of our units that is for U.S. federal tax purposes: (i) an individual citizen or resident of the United States; (ii) a corporation (or other entity treated as a corporation for U.S. federal income tax purposes) created or organized in or under the laws of the United States, any state thereof or the District of Columbia; (iii) an estate the income of which is subject to U.S. federal income taxation regardless of its source; or (iv) a trust (a) that is subject to the primary supervision of a court within the United States and all substantial decisions of which one or more U.S. persons have the authority to control or (b) that has a valid election in effect under applicable Treasury Regulations to be treated as a U.S. person.

A “Non-U.S. Holder” is a beneficial owner of one or more of our units, other than a U.S. Holder or an entity classified as a partnership or other fiscally transparent entity for U.S. federal tax purposes.

If a partnership holds our units, the tax treatment of a partner of such partnership generally will depend upon the status of the partner and the activities of the partnership. Partners of partnerships that hold our units should consult their own tax advisers.

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This discussion does not constitute tax advice and is not intended to be a substitute for tax planning. You should consult your own tax adviser concerning the U.S. federal, state and local income tax consequences particular to your ownership and disposition of our units, as well as any tax consequences under the laws of any other taxing jurisdiction.

Partnership Status of Our Partnership and the Holding LP

Each of our partnership and the Holding LP has made a protective election to be classified as a partnership for U.S. federal tax purposes. An entity that is treated as a partnership for U.S. federal tax purposes incurs no U.S. federal income tax liability. Instead, each partner is generally required to take into account its allocable share of items of income, gain, loss, deduction, or credit of the partnership in computing its U.S. federal income tax liability, regardless of whether cash distributions are made. Distributions of cash by a partnership to a partner generally are not taxable unless the amount of cash distributed to a partner is in excess of the partner’s adjusted basis in its partnership interest.

An entity that would otherwise be classified as a partnership for U.S. federal income tax purposes may nonetheless be taxable as a corporation if it is a “publicly traded partnership”, unless an exception applies. Our partnership is publicly traded. However, an exception, referred to as the “Qualifying Income Exception”, exists with respect to a publicly traded partnership if (i) at least 90% of such partnership’s gross income for every taxable year consists of “qualifying income” and (ii) the partnership would not be required to register under the Investment Company Act if it were a U.S. corporation. Qualifying income includes certain interest income, dividends, real property rents, gains from the sale or other disposition of real property, and any gain from the sale or disposition of a capital asset or other property held for the production of income that otherwise constitutes qualifying income.

Our General Partner intends to manage the affairs of our partnership and the Holding LP so that our partnership will meet the Qualifying Income Exception in each taxable year. Accordingly, our General Partner believes that our partnership will be treated as a partnership and not as a corporation for U.S. federal income tax purposes.

If our partnership fails to meet the Qualifying Income Exception, other than a failure which is determined by the IRS to be inadvertent and which is cured within a reasonable time after discovery, or if our partnership is required to register under the Investment Company Act, our partnership will be treated as if it had transferred all of its assets, subject to liabilities, to a newly formed corporation, on the first day of the year in which our partnership fails to meet the Qualifying Income Exception, in return for stock in such corporation, and then distributed the stock to our unitholders in liquidation. This deemed contribution and liquidation could result in the recognition of gain (but not loss) to U.S. Holders, except that U.S. Holders generally would not recognize the portion of such gain attributable to stock or securities of non-U.S. corporations held by us. If, at the time of such contribution, our partnership were to have liabilities in excess of the tax basis of its assets, U.S. Holders generally would recognize gain in respect of such excess liabilities upon the deemed transfer. Thereafter, our partnership would be treated as a corporation for U.S. federal income tax purposes.

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If our partnership were treated as a corporation in any taxable year, either as a result of a failure to meet the Qualifying Income Exception or otherwise, our partnership’s items of income, gain, loss, deduction, or credit would be reflected only on our partnership’s tax return rather than being passed through to our unitholders, and our partnership would be subject to U.S. corporate income tax and potentially branch profits tax with respect to its income, if any, effectively connected with a U.S. trade or business. Moreover, under certain circumstances, our partnership might be classified as a PFIC, for U.S. federal income tax purposes, and a U.S. Holder would be subject to the rules applicable to PFICs discussed below. See “—Consequences to U.S. Holders—Passive Foreign Investment Companies”. Subject to the PFIC rules, distributions made to U.S. Holders would be treated as taxable dividend income to the extent of our partnership’s current or accumulated earnings and profits. Any distribution in excess of current and accumulated earnings and profits would first be treated as a tax-free return of capital to the extent of a U.S. Holder’s adjusted tax basis in its units. Thereafter, to the extent such distribution were to exceed a U.S. Holder’s adjusted tax basis in its units, the distribution would be treated as gain from the sale or exchange of such units. The amount of a distribution treated as a dividend could be eligible for reduced rates of taxation, provided certain conditions are met. In addition, dividends, interest and certain other passive income received by our partnership with respect to U.S. investments generally would be subject to U.S. withholding tax at a rate of 30% (although certain Non-U.S. Holders nevertheless might be entitled to certain treaty benefits in respect of their allocable share of such income) and U.S. Holders would not be allowed a tax credit with respect to any such tax withheld. In addition, the “portfolio interest” exemption would not apply to certain interest income of our partnership (although certain Non-U.S. Holders nevertheless might be entitled to certain treaty benefits in respect of their allocable share of such income). Depending on the composition of our assets, additional adverse U.S. federal income tax consequences could result under the anti-inversion rules described in Section 7874 of the U.S. Internal Revenue Code, as implemented by the Treasury Regulations and IRS administrative guidance.

Based on the foregoing consequences, the treatment of our partnership as a corporation could materially reduce a holder’s after-tax return and therefore could result in a substantial reduction of the value of our units. If the Holding LP were to be treated as a corporation for U.S. federal income tax purposes, consequences similar to those described above would apply, and additional adverse U.S. federal income tax consequences could result if debt issued by a U.S. subsidiary to the Holding LP were recharacterized as equity under the Treasury Regulations under Section 385 of the U.S. Internal Revenue Code.

The remainder of this summary assumes that our partnership and the Holding LP will be treated as partnerships for U.S. federal tax purposes. Our partnership expects that a substantial portion of the items of income, gain, deduction, loss, or credit realized by our partnership will be realized in the first instance by the Holding LP and allocated to our partnership for reallocation to our unitholders. Unless otherwise specified, references in this section to realization of our partnership’s items of income, gain, loss, deduction, or credit include a realization of such items by the Holding LP and the allocation of such items to our partnership.

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Consequences to U.S. Holders

Holding of Our Units

Income and Loss.    If you are a U.S. Holder, you will be required to take into account, as described below, your allocable share of our partnership’s items of income, gain, loss, deduction, and credit for each of our partnership’s taxable years ending with or within your taxable year. Each item generally will have the same character and source as though you had realized the item directly. You must report such items without regard to whether any distribution has been or will be received from our partnership. Our partnership intends to make cash distributions to all unitholders on a quarterly basis in amounts generally expected to be sufficient to permit U.S. Holders to fund their estimated U.S. tax obligations (including U.S. federal, state, and local income taxes) with respect to their allocable shares of our partnership’s net income or gain. However, based upon your particular tax situation and simplifying assumptions that our partnership will make in determining the amount of such distributions, and depending upon whether you elect to reinvest such distributions pursuant to the distribution reinvestment plan, your tax liability might exceed cash distributions made to you, in which case any tax liabilities arising from your ownership of our units would need to be satisfied from your own funds.

With respect to U.S. Holders who are individuals, certain dividends paid by a corporation (including certain qualified foreign corporations) to our partnership and that are allocable to such U.S. Holders may qualify for reduced rates of taxation. A qualified foreign corporation includes a foreign corporation that is eligible for the benefits of specified income tax treaties with the United States. In addition, a foreign corporation is treated as a qualified corporation with respect to its shares that are readily tradable on an established securities market in the United States. Among other exceptions, U.S. Holders who are individuals will not be eligible for reduced rates of taxation on any dividends if the payer is a PFIC for the taxable year in which such dividends are paid or for the preceding taxable year. Dividends received by non-corporate U.S. Holders may be subject to an additional Medicare tax on unearned income of 3.8% (see “—Medicare Tax” below). U.S. Holders that are corporations may be entitled to a “dividends received deduction” in respect of dividends paid by U.S. corporations in which our partnership (through the Holding LP) owns stock. You should consult your own tax adviser regarding the application of the foregoing rules in light of your particular circumstances.

For U.S. federal income tax purposes, your allocable share of our partnership’s items of income, gain, loss, deduction, or credit will be governed by our Limited Partnership Agreement if such allocations have “substantial economic effect” or are determined to be in accordance with your interest in our partnership. Similarly, our partnership’s allocable share of items of income, gain, loss, deduction, or credit of the Holding LP will be governed by the limited partnership agreement of the Holding LP if such allocations have “substantial economic effect” or are determined to be in accordance with our partnership’s interest in the Holding LP. Our General Partner believes that, for U.S. federal income tax purposes, such allocations should be given effect, and our General Partner intends to prepare and file tax returns based on such allocations. If the IRS were to successfully challenge the allocations made pursuant to either our limited partnership agreement or the Limited Partnership Agreement of the Holding LP, then the resulting allocations for U.S. federal income tax purposes might be less favourable than the allocations set forth in such agreements.

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Basis.    You will have an initial tax basis in your units equal to the sum of (i) the amount of cash paid for our units (or, if you received your units pursuant to the spin-off of our partnership by Brookfield Asset Management, the amount of dividend income you recognized pursuant to the spin-off) and (ii) your share of our partnership’s liabilities, if any. That basis will be increased by your share of our partnership’s income and by increases in your share of our partnership’s liabilities, if any. That basis will be decreased, but not below zero, by distributions you receive from our partnership, by your share of our partnership’s losses, and by any decrease in your share of our partnership’s liabilities. Under applicable U.S. federal income tax rules, a partner in a partnership has a single, or “unitary”, tax basis in his or her partnership interest. As a result, any amount you pay to acquire additional units (including through the distribution reinvestment plan) will be averaged with the adjusted tax basis of units owned by you prior to the acquisition of such additional units.

For purposes of the foregoing rules, the rules discussed immediately below, and the rules applicable to a sale or exchange of our units, our partnership’s liabilities generally will include our partnership’s share of any liabilities of the Holding LP.

Limits on Deductions for Losses and Expenses.Your deduction of your allocable share of our partnership’s losses will be limited to your tax basis in our units and, if you are an individual or a corporate holder that is subject to the “at risk” rules, to the amount for which you are considered to be “at risk” with respect to our partnership’s activities, if that is less than your tax basis. In general, you will be at risk to the extent of your tax basis in our units, reduced by (i) the portion of that basis attributable to your share of our partnership’s liabilities for which you will not be personally liable (excluding certain qualified non-recourse financing) and (ii) any amount of money you borrow to acquire or hold our units, if the lender of those borrowed funds owns an interest in our partnership, is related to you, or can look only to your units for repayment. Your at-risk amount generally will increase by your allocable share of our partnership’s income and gain and decrease by cash distributions you receive from our partnership and your allocable share of losses and deductions. You must recapture losses deducted in previous years to the extent that distributions cause your at-risk amount to be less than zero at the end of any taxable year. Losses disallowed or recaptured as a result of these limitations will carry forward and will be allowable to the extent that your tax basis or at-risk amount, whichever is the limiting factor, subsequently increases. Upon the taxable disposition of our units, any gain recognized by you can be offset by losses that were previously suspended by the at-risk limitation, but may not be offset by losses suspended by the basis limitation. Any excess loss above the gain previously suspended by the at-risk or basis limitations may no longer be used. Under the Tax Cuts and Jobs Act, non-corporate taxpayers are not permitted to deduct “excess business losses” for taxable years beginning after December 31, 2017, and before January 1, 2026. You should consult your own tax adviser regarding the limitations on the deductibility of losses under the U.S. Internal Revenue Code.

Limitations on Deductibility of Organizational Expenses and Syndication Fees.In general, neither our partnership nor any U.S. Holder may deduct organizational or syndication expenses. Similar rules apply to organizational or syndication expenses incurred by the Holding LP. Syndication fees (which would include any sales or placement fees or commissions) must be capitalized and cannot be amortized or otherwise deducted.

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Limitations on Interest Deductions.Our General Partner intends to use commercially reasonable efforts to structure the activities of our partnership and the Holding LP to avoid generating UBTI attributable to debt-financed property. However, to the extent our partnership or the Holding LP incur debt, your share of our partnership’s interest expense, if any, is likely to be treated as “investment interest” expense. For a non-corporate U.S. Holder, the deductibility of “investment interest” expense generally is limited to the amount of such holder’s “net investment income”. Net investment income includes gross income from property held for investment and amounts treated as portfolio income under the passive loss rules, less deductible expenses, other than interest, directly connected with the production of investment income, but generally does not include gains attributable to the disposition of property held for investment. Your share of our partnership’s dividend and interest income will be treated as investment income, although “qualified dividend income” subject to reduced rates of tax in the hands of an individual will only be treated as investment income if such individual elects to treat such dividend as ordinary income not subject to reduced rates of tax. In addition, state and local tax laws may disallow deductions for your share of our partnership’s interest expense.Under Section 163(j) of the U.S. Internal Revenue Code, as amended by the Tax Cuts and Jobs Act, additional limitations may apply to a corporate U.S. Holder’s share of our partnership’s interest expense, if any.

Deductibility of Partnership Investment Expenditures by Individual Partners and by Trusts and Estates.Under the Tax Cuts and Jobs Act, individuals and certain estates and trusts will not be permitted to claim miscellaneous itemized deductions for taxable years beginning after December 31, 2017, and before January 1, 2026. Such miscellaneous itemized deductions may include the operating expenses of our partnership, including our partnership’s allocable share of the base management fee or any other management fees.

Treatment of Distributions

Distributions of cash by our partnership generally will not be taxable to you to the extent of your adjusted tax basis (described above) in our units. Any cash distributions in excess of your adjusted tax basis generally will be considered to be gain from the sale or exchange of our units (described below). Such gain generally will be treated as capital gain and will be long-term capital gain if your holding period for our units exceeds one year. A reduction in your allocable share of our liabilities, and certain distributions of marketable securities by our partnership, if any, will be treated similar to cash distributions for U.S. federal income tax purposes.

Sale or Exchange of Our Units

You will recognize gain or loss on the sale or taxable exchange of our units equal to the difference, if any, between the amount realized and your tax basis in our units sold or exchanged. Your amount realized will be measured by the sum of the cash or the fair market value of other property received plus your share of our partnership’s liabilities, if any.

Gain or loss recognized by you upon the sale or exchange of our units generally will be taxable as capital gain or loss and will be long-term capital gain or loss if our units were held for more than one year as of the date of such sale or exchange. Assuming you have not elected to treat your share of our partnership’s investment in any PFIC as a “qualified electing fund”, gain attributable to such investment in a PFIC would be taxable in the manner described below in “—Passive Foreign Investment Companies”. In addition, certain gain attributable to our investment in a “controlled foreign corporation” (“CFC”) may be characterized as ordinary income, and certain gain attributable to “unrealized receivables” or “inventory items” could be characterized as ordinary income rather than capital gain. For example, if our partnership were to hold debt acquired at a market discount, accrued market discount on such debt would be treated as “unrealized receivables”. The deductibility of capital losses is subject to limitations.

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Each U.S. Holder who acquires our units at different times and intends to sell all or a portion of our units within a year of the most recent purchase should consult its own tax adviser regarding the application of certain “split holding period” rules to such sale and the treatment of any gain or loss as long-term or short-term capital gain or loss.

Medicare Tax

U.S. Holders that are individuals, estates, or trusts may be required to pay a 3.8% Medicare tax on the lesser of (i) the excess of such U.S. Holders’ “modified adjusted gross income” (or “adjusted gross income” in the case of estates and trusts) over certain thresholds and (ii) such U.S. Holders’ “net investment income” (or “undistributed net investment income” in the case of estates and trusts). Net investment income generally includes your allocable share of our partnership’s income, as well as gain realized by you from a sale of our units. Special rules relating to the 3.8% Medicare tax may apply to dividends and gain, if any, derived by such U.S. Holders with respect to our partnership’s interest in a PFIC or CFC. See “—Passive Foreign Investment Companies” and “—Controlled Foreign Corporations” below. You should consult your own tax adviser regarding the implications of the 3.8% Medicare tax for your ownership and disposition of our units.

Foreign Tax Credit Limitations

If you are a U.S. Holder, you generally will be entitled to a foreign tax credit with respect to your allocable share of creditable foreign taxes paid on our partnership’s income and gains. Complex rules may, depending on your particular circumstances, limit the availability or use of foreign tax credits. Gain from the sale of our partnership’s investments may be treated as U.S.-source gain. Consequently, you may not be able to use the foreign tax credit arising from any foreign taxes imposed on such gain unless the credit can be applied (subject to applicable limitations) against U.S. tax due on other income treated as derived from foreign sources. Certain losses that our partnership incurs may be treated as foreign-source losses, which could reduce the amount of foreign tax credits otherwise available.

Deduction for Qualified Business Income

Under the Tax Cuts and Jobs Act, for taxable years beginning after December 31, 2017, and before January 1, 2026, U.S. taxpayers who have domestic “qualified business income” from a partnership generally are entitled to deduct the lesser of such qualified business income or 20% of taxable income. The 20% deduction is also allowed for “qualified publicly traded partnership income”. A U.S. Holder’s allocable share of our partnership’s income is not expected to be treated as qualified business income or as qualified publicly traded partnership income.

Section 754 Election

Our partnership and the Holding LP have each made the election permitted by Section 754 of the U.S. Internal Revenue Code (“Section 754 Election”). The Section 754 Election cannot be revoked without the consent of the IRS. The Section 754 Election generally requires our partnership to adjust the tax basis in its assets, or inside basis, attributable to a transferee of our units under Section 743(b) of the U.S. Internal Revenue Code to reflect the purchase price paid by the transferee for our units. This election does not apply to a person who purchases units directly from us. For purposes of this discussion, a transferee’s inside basis in our partnership’s assets will be considered to have two components: (i) the transferee’s share of our partnership’s tax basis in our partnership’s assets, or common basis, and (ii) the adjustment under Section 743(b) of the U.S. Internal Revenue Code to that basis. The foregoing rules would also apply to the Holding LP.

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Generally, a Section 754 Election would be advantageous to a transferee U.S. Holder if such holder’s tax basis in its units were higher than such units’ share of the aggregate tax basis of our partnership’s assets immediately prior to the transfer. In that case, as a result of the Section 754 Election, the transferee U.S. Holder would have a higher tax basis in its share of our partnership’s assets for purposes of calculating, among other items, such holder’s share of any gain or loss on a sale of our partnership’s assets. Conversely, a Section 754 Election would be disadvantageous to a transferee U.S. Holder if such holder’s tax basis in its units were lower than such units’ share of the aggregate tax basis of our partnership’s assets immediately prior to the transfer. Thus, the fair market value of our units may be affected either favourably or adversely by the election.

Whether or not the Section 754 Election is made, if our units are transferred at a time when our partnership has a “substantial built-in loss” in its assets, our partnership will be obligated to reduce the tax basis in the portion of such assets attributable to such units.

The calculations involved in the Section 754 Election are complex, and our General Partner advises that it will make such calculations on the basis of assumptions as to the value of our partnership assets and other matters. Each U.S. Holder should consult its own tax adviser as to the effects of the Section 754 Election.

Uniformity of Our Units

Because we cannot match transferors and transferees of our units, we must maintain the uniformity of the economic and tax characteristics of our units to a purchaser of our units. In the absence of uniformity, we may be unable to comply fully with a number of U.S. federal income tax requirements. A lack of uniformity can result from a literal application of certain Treasury Regulations to our partnership’s Section 743(b) adjustments, a determination that our partnership’s Section 704(c) allocations are unreasonable, or other reasons. Section 704(c) allocations would be intended to reduce or eliminate the disparity between tax basis and the value of our partnership’s assets in certain circumstances, including on the issuance of additional units. In order to maintain the fungibility of all of our units at all times, we will seek to achieve the uniformity of U.S. tax treatment for all purchasers of our units which are acquired at the same time and price (irrespective of the identity of the particular seller of our units or the time when our units are issued by our partnership), through the application of certain tax accounting principles that our General Partner believes are reasonable for our partnership. However, the IRS may disagree with us and may successfully challenge our application of such tax accounting principles. Any non-uniformity could have a negative impact on the value of our units.

Foreign Currency Gain or Loss

Our partnership’s functional currency is the U.S. dollar, and our partnership’s income or loss is calculated in U.S. dollars. It is likely that our partnership will recognize “foreign currency” gain or loss with respect to transactions involving non-U.S. dollar currencies. In general, foreign currency gain or loss is treated as ordinary income or loss. You should consult your own tax adviser regarding the tax treatment of foreign currency gain or loss.

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Passive Foreign Investment Companies

U.S. Holders may be subject to special rules applicable to indirect investments in foreign corporations, including an investment through our partnership in a PFIC. A PFIC is defined as any foreign corporation with respect to which (after applying certain look-through rules) either (i) 75% or more of its gross income for a taxable year is “passive income” or (ii) 50% or more of its assets in any taxable year (generally based on the quarterly average of the value of its assets) produce or are held for the production of “passive income”. There are no minimum stock ownership requirements for PFICs. If you hold an interest in a foreign corporation for any taxable year during which the corporation is classified as a PFIC with respect to you, then the corporation will continue to be classified as a PFIC with respect to you for any subsequent taxable year during which you continue to hold an interest in the corporation, even if the corporation’s income or assets would not cause it to be a PFIC in such subsequent taxable year, unless an exception applies.

Subject to certain elections described below, any gain on the disposition of stock of a PFIC owned by you indirectly through our partnership, as well as income realized on certain “excess distributions” by such PFIC, would be treated as though realized ratably over the shorter of your holding period of our units or our partnership’s holding period for the PFIC. Such gain or income generally would be taxable as ordinary income, and dividends paid by the PFIC would not be eligible for the preferential tax rates for dividends paid to non-corporate U.S. Holders. In addition, an interest charge would apply, based on the tax deemed deferred from prior years. To the extent reasonably practicable, we intend to make distributions of the earnings of each entity we are able to identify as a PFIC not less frequently than annually so as to minimize the likelihood that you will have excess distributions with respect to any such entity. However, because we cannot assure that will be the case, and because any gains on a sale of any such entity would remain subject to the PFIC tax regime, we urge you to consider making any applicable election described below.

If you were to elect to treat your share of our partnership’s interest in a PFIC as a “qualified electing fund” (“QEF Election”), for the first year you were treated as holding such interest, then in lieu of the tax consequences described in the paragraph immediately above, you would be required to include in income each year a portion of the ordinary earnings and net capital gains of the PFIC, even if not distributed to our partnership or to you. A QEF Election must be made by you on an entity-by-entity basis. To make a QEF Election, you must, among other things, (i) obtain a PFIC annual information statement (through an intermediary statement supplied by our partnership) and (ii) prepare and submit IRS Form 8621 with your annual income tax return. To the extent reasonably practicable, we intend to timely provide you with information related to the PFIC status of each entity we are able to identify as a PFIC, including information necessary to make a QEF Election with respect to each such entity. Any such election should be made for the first year our partnership holds an interest in such entity or for the first year in which you hold our units, if later. Under certain circumstances, we may be permitted to make a QEF Election on behalf of all U.S. Holders with respect to a PFIC held indirectly. However, no assurance can be provided that we will make any such QEF Election, if available.

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Once you have made a QEF Election for an entity, such election applies to any additional shares of interest in such entity acquired directly or indirectly, including through additional units acquired after the QEF Election is made (such as units acquired under the distribution reinvestment plan). If you were to make a QEF Election after the first year that you were treated as holding an interest in a PFIC, the adverse tax consequences relating to PFIC stock would continue to apply with respect to the pre-QEF Election period, unless you were to make a “purging election”. The purging election would create a deemed sale of your previously held share of our partnership’s interests in a PFIC. The gain recognized by the purging election would be subject to the special tax and interest charge rules, which treat the gain as an excess distribution, as described above. As a result of the purging election, you would have a new basis and holding period in your share of our partnership’s interests in the PFIC. U.S. Holders should consult their own tax advisers as to the manner in which such direct inclusions could affect their allocable share of our partnership’s income and their tax basis in our units and the advisability of making a QEF Election or a purging election.

Treasury Regulations under Section 1411 of the U.S. Internal Revenue Code contain special rules for applying the 3.8% Medicare tax (as described above under “—Medicare Tax”) to U.S. persons owning an interest in a PFIC. Under the special rules, if you are a non-corporate U.S. Holder that has made a QEF Election with respect to our partnership’s interest in a PFIC, then you are permitted to make a special election to treat your share of the ordinary earnings and net capital gains of the PFIC as net investment income for purposes of the 3.8% Medicare tax. If you do not make the special election, then you may be required to calculate your basis in our units for purposes of the 3.8% Medicare tax in a manner that differs from the calculation of your basis in our units for U.S. federal income tax purposes generally. You should consult your own tax adviser regarding the implications of the special election, as well as the other implications of the 3.8% Medicare tax and the Treasury Regulations under Section 1411 of the U.S. Internal Revenue Code for your ownership and disposition of our units.

In the case of a PFIC that is a publicly traded foreign company, and in lieu of making a QEF Election, an election may be made to “mark to market” the stock of such publicly traded foreign company on an annual basis. Pursuant to such an election, you would include in each year as ordinary income the excess, if any, of the fair market value of such stock over its adjusted basis at the end of the taxable year. No assurance can be provided that any of our existing or future Holding Entities or operating entities will qualify as PFICs that are publicly traded or that a mark-to-market election will be available for any such entity. You should consult your own tax adviser regarding the availability of the mark-to-market election with respect to any PFIC in which you are treated as owning an interest through our partnership.

Based on our organizational structure, as well as our expected income and assets, our General Partner currently believes that a U.S. Holder is unlikely to be regarded as owning an interest in a PFIC solely by reason of owning our units for the taxable year ending December 31, 2018. However, our General Partner believes that some of our operating entities may have been PFICs in prior taxable years. In addition, we may decide to hold an existing or future operating entity through a Holding Entity that would be a PFIC in order to ensure that our partnership satisfies the Qualifying Income Exception, among other reasons. See “—Investment Structure”, below. Accordingly, there can be no assurance that a current or future investment will not qualify as a PFIC.

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Subject to certain exceptions, a U.S. person who directly or indirectly owns an interest in a PFIC generally is required to file an annual report with the IRS, and the failure to file such report could result in the imposition of penalties on such U.S. person and in the extension of the statute of limitations with respect to federal income tax returns filed by such U.S. person. You should consult your own tax adviser regarding the PFIC rules, including the foregoing filing requirements, as well as the advisability of making a QEF Election, a special election under the Treasury Regulations under Section 1411 of the U.S. Internal Revenue Code, or a mark-to-market election, as applicable, with respect to any PFIC in which you are treated as owning an interest through our partnership.

Controlled Foreign Corporations

A non-U.S. entity will be treated as a CFC if it is treated as a corporation for U.S. federal income tax purposes and more than 50% of (i) the total combined voting power of all classes of stock of the non-U.S. entity entitled to vote or (ii) the total value of the stock of the non-U.S. entity is owned by U.S. Shareholders on any day during the taxable year of such non-U.S. entity. For this purpose, a “U.S. Shareholder” with respect to a non-U.S. entity means a U.S. person (including a U.S. partnership) that owns (directly, indirectly, or constructively) 10% or more of the total combined voting power of all classes of stock of the non-U.S. entity entitled to vote or 10% or more of the total value of shares of all classes of stock of the non-U.S. entity.

If a U.S. partnership in which we own an interest is a U.S. Shareholder of a CFC, then a U.S. Holder may be required to include in income its allocable share of the CFC’s “Subpart F” income. Subpart F income generally includes dividends, interest, net gain from the sale or disposition of securities, non-actively managed rents, and certain other generally passive types of income. The aggregate Subpart F income inclusions in any taxable year relating to a particular CFC are limited to such CFC’s current earnings and profits. Under the Tax Cuts and Jobs Act, a U.S. Holder may also be required to include in income its allocable share of the CFC’s “global intangible low-taxed income” (“GILT” income). Each of the foregoing inclusions will be treated as ordinary income (whether or not such inclusions are attributable to net capital gains). Thus, a U.S. Holder may be required to report as ordinary income its allocable share of the CFC’s Subpart F income and GILT income without corresponding receipts of cash and may not benefit from capital gain treatment with respect to the portion of any earnings attributable to net capital gains of the CFC. Corporate U.S. Holders are urged to consult their own tax advisers regarding the availability of a deduction under Section 250 of the U.S. Internal Revenue Code with respect to GILT income inclusions arising from their indirect interest in a CFC through our partnership.

Your tax basis in your units will be increased to reflect any required Subpart F or GILT income inclusions. Such income will be treated as income from sources within the United States, for certain foreign tax credit purposes, to the extent derived by the CFC from U.S. sources. Subpart F income (and likely GILT income) will not be eligible for the reduced rate of tax applicable to certain dividends paid by qualified foreign corporations to individual U.S. persons. See above under “—Consequences to U.S. Holders—Holding of Our Units—Income and Loss”. Amounts included as Subpart F income or GILT income with respect to direct and indirect investments generally will not be taxable again when actually distributed by the CFC.

Whether or not any CFC has Subpart F income or GILT income, any gain allocated to you from our disposition of an equity interest in a CFC will be treated as dividend income to the extent of your allocable share of the current and/or accumulated earnings and profits of the CFC. In this regard, earnings would not include any amounts previously taxed pursuant to the CFC rules. However, net losses (if any) of a CFC will not pass through to U.S. Holders.

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As described above under “—Passive Foreign Investment Companies”, Treasury Regulations under Section 1411 of the U.S. Internal Revenue Code contain special rules for applying the 3.8% Medicare tax to U.S. persons owning an interest in a PFIC. Similar rules apply to U.S. Shareholders of a CFC. You should consult your own tax adviser regarding the implications of these special rules.

If a non-U.S. entity held by us through a U.S. partnership (treated as a U.S. Shareholder of such non-U.S. entity) is classified as both a CFC and a PFIC, then you will be required to include amounts in income with respect to such non-U.S. entity either under the CFC rules described under this subheading, or under the PFIC rules described under “—Passive Foreign Investment Companies”, but not both. The interaction of these rules is complex, and you should consult your own tax adviser in this regard.

Based on our organizational structure, the General Partner currently believes that one or more of our existing Holding Entities and operating entities are likely to be classified as CFCs. Moreover, we may in the future acquire certain investments or operating entities through one or more Holding Entities treated as corporations for U.S. federal income tax purposes, and such future Holding Entities or other companies in which we acquire an interest may be treated as CFCs. As a result of the Tax Cuts and Jobs Act, the application of the CFC rules to U.S. Holders is uncertain in certain respects, and the amended CFC rules remain subject to regulations or other guidance yet to be issued. You should consult your own tax adviser regarding the implications of the CFC rules for your ownership and disposition of our units.

Investment Structure

To ensure that our partnership meets the Qualifying Income Exception for publicly traded partnerships (discussed above) and complies with certain requirements in our Limited Partnership Agreement, among other reasons, our partnership may structure certain investments through an entity classified as a corporation for U.S. federal income tax purposes. Such investments will be structured as determined in the sole discretion of our General Partner generally to be tax efficient for our unitholders. However, because our unitholders will be located in numerous taxing jurisdictions, no assurance can be given that any such investment structure will benefit all our unitholders to the same extent, and such an investment structure might even result in additional tax burdens on some unitholders. As discussed above, if any such entity were a non-U.S. corporation, it might be considered a PFIC or CFC. If any such entity were a U.S. corporation, it would be subject to U.S. federal net income tax on its income, including any gain recognized on the disposition of its investments. In addition, if the investment were to involve U.S. real property, gain recognized on the disposition of the investment by a corporation generally would be subject to corporate-level tax, whether the corporation were a U.S. or a non-U.S. corporation.

U.S. Withholding Taxes

Although each U.S. Holder is required to provide us with an IRS Form W-9, we nevertheless may be unable to accurately or timely determine the tax status of our unitholders for purposes of determining whether U.S. withholding applies to payments made by our partnership to some or all of our unitholders. In such a case, payments made by our partnership to U.S. Holders might be subject to U.S. “backup” withholding at the applicable rate or other U.S. withholding taxes. You would be able to treat as a credit your allocable share of any U.S. withholding taxes paid in the taxable year in which such withholding taxes were paid and, as a result, you might be entitled to a refund of such taxes from the IRS. In the event you transfer or otherwise dispose of some or all of your units, special rules might apply for purposes of determining whether you or the transferee of such units were subject to U.S. withholding taxes in respect of income allocable to, or distributions made on account of, such units or entitled to refunds of any such taxes withheld. See below “Administrative Matters—Certain Effects of a Transfer of Units”. You should consult your own tax adviser regarding the treatment of U.S. withholding taxes.

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Transferor/Transferee Allocations

Our partnership may allocate items of income, gain, loss, and deduction using a monthly convention, whereby any such items recognized in a given month by our partnership are allocated to our unitholders as of a specified date of such month. As a result, if you transfer your units, you might be allocated income, gain, loss, and deduction realized by our partnership after the date of the transfer. Similarly, if you acquire additional units, you might be allocated income, gain, loss, and deduction realized by our partnership prior to your ownership of such units.

Section 706 of the U.S. Internal Revenue Code generally governs allocations of items of partnership income and deductions between transferors and transferees of partnership interests, and the Treasury Regulations provide a safe harbor allowing a publicly traded partnership to use a monthly simplifying convention for such purposes. However, it is not clear that our partnership’s allocation method complies with the requirements. If our partnership’s convention were not permitted, the IRS might contend that our partnership’s taxable income or losses must be reallocated among our unitholders. If such a contention were sustained, your tax liabilities might be adjusted to your detriment. Our General Partner is authorized to revise our partnership’s method of allocation between transferors and transferees (as well as among investors whose interests otherwise vary during a taxable period).

U.S. Federal Estate Tax Consequences

If our units are included in the gross estate of a U.S. citizen or resident for U.S. federal estate tax purposes, then a U.S. federal estate tax might be payable in connection with the death of such person. Individual U.S. Holders should consult their own tax advisers concerning the potential U.S. federal estate tax consequences with respect to our units.

Certain Reporting Requirements

A U.S. Holder who invests more than $100,000 in our partnership may be required to file IRS Form 8865 reporting the investment with such U.S. Holder’s U.S. federal income tax return for the year that includes the date of the investment. You may be subject to substantial penalties if you fail to comply with this and other information reporting requirements with respect to an investment in our units. You should consult your own tax adviser regarding such reporting requirements.

U.S. Taxation of Tax-Exempt U.S. Holders of Our Units

Income recognized by a U.S. tax-exempt organization is exempt from U.S. federal income tax except to the extent of the organization’s UBTI. UBTI is defined generally as any gross income derived by a tax-exempt organization from an unrelated trade or business that it regularly carries on, less the deductions directly connected with that trade or business. In addition, income arising from a partnership (or other entity treated as a partnership for U.S. federal income tax purposes) that holds operating assets or is otherwise engaged in a trade or business generally will constitute UBTI. Notwithstanding the foregoing, UBTI generally does not include any dividend income, interest income, certain other categories of passive income, or capital gains realized by a tax-exempt organization, so long as such income is not “debt-financed”, as discussed below. Our General Partner believes that our partnership should not be regarded as engaged in a trade or business, and anticipates that any operating assets held by our partnership will be held through entities that are treated as corporations for U.S. federal income tax purposes.

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The exclusion from UBTI does not apply to income from “debt-financed property”, which is treated as UBTI to the extent of the percentage of such income that the average acquisition indebtedness with respect to the property bears to the average tax basis of the property for the taxable year. If an entity treated as a partnership for U.S. federal income tax purposes incurs acquisition indebtedness, a tax-exempt partner in such partnership will be deemed to have acquisition indebtedness equal to its allocable portion of such acquisition indebtedness. If any such indebtedness were used by our partnership or by the Holding LP to acquire property, such property generally would constitute debt-financed property, and any income from or gain from the disposition of such debt-financed property allocated to a tax-exempt organization generally would constitute UBTI to such tax-exempt organization. In addition, even if such indebtedness were not used either by our partnership or by the Holding LP to acquire property but were instead used to fund distributions to our unitholders, if a tax-exempt organization subject to taxation in the United States were to use such proceeds to make an investment outside our partnership, the IRS might assert that such investment constitutes debt-financed property to such unitholder with the consequences noted above. Our partnership and the Holding LP currently do not have any outstanding indebtedness used to acquire property, and our General Partner does not believe that our partnership or the Holding LP will generate UBTI attributable to debt-financed property in the future. Moreover, our General Partner intends to use commercially reasonable efforts to structure our activities to avoid generating UBTI. However, neither our partnership nor the Holding LP is prohibited from incurring indebtedness, and no assurance can be provided that neither our partnership nor the Holding LP will generate UBTI attributable to debt-financed property in the future. Tax-exempt U.S. Holders should consult their own tax advisers regarding the tax consequences of an investment in our units.

Consequences to Non-U.S. Holders

Our General Partner intends to use commercially reasonable efforts to structure the activities of our partnership and the Holding LP, respectively, to avoid the realization by our partnership and the Holding LP, respectively, of income treated as effectively connected with a U.S. trade or business, including effectively connected income attributable to the sale of a “United States real property interest”, as defined in the U.S. Internal Revenue Code. Specifically, our partnership intends not to make an investment, whether directly or through an entity which would be treated as a partnership for U.S. federal income tax purposes, if our General Partner believes at the time of such investment that such investment would generate income treated as effectively connected with a U.S. trade or business. If, as anticipated, our partnership is not treated as engaged in a U.S. trade or business or as deriving income which is treated as effectively connected with a U.S. trade or business, and provided that a Non-U.S. Holder is not itself engaged in a U.S. trade or business, then such Non-U.S. Holder generally will not be subject to U.S. tax return filing requirements solely as a result of owning our units and generally will not be subject to U.S. federal income tax on its allocable share of our partnership’s interest and dividends from non-U.S. sources or gain from the sale or other disposition of securities or real property located outside of the United States.

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However, there can be no assurance that the law will not change or that the IRS will not deem our partnership to be engaged in a U.S. trade or business. If, contrary to our General Partner’s expectations, our partnership is treated as engaged in a U.S. trade or business, then a Non-U.S. Holder generally would be required to file a U.S. federal income tax return, even if no effectively connected income were allocable to it. If our partnership were to have income treated as effectively connected with a U.S. trade or business, then a Non-U.S. Holder would be required to report that income and would be subject to U.S. federal income tax at the regular graduated rates. In addition, our partnership might be required to withhold U.S. federal income tax on such Non-U.S. Holder’s distributive share of such income. A corporate Non-U.S. Holder might also be subject to branch profits tax at a rate of 30%, or at a lower treaty rate, if applicable. Under the Tax Cuts and Jobs Act, if, contrary to expectation, our partnership were engaged in a U.S. trade or business, then gain or loss from the sale of our units by a Non-U.S. Holder would be treated as effectively connected with such trade or business to the extent that such Non-U.S. Holder would have had effectively connected gain or loss had our partnership sold all of its assets at their fair market value as of the date of such sale. In such case, any such effectively connected gain generally would be taxable at the regular graduated U.S. federal income tax rates, and the amount realized from such sale generally would be subject to a 10% U.S. federal withholding tax. The 10% U.S. federal withholding tax is temporarily suspended with respect to the disposition of an interest in a publicly traded partnership until regulations or other guidance has been issued.

In general, even if our partnership is not engaged in a U.S. trade or business, and assuming you are not otherwise engaged in a U.S. trade or business, you will nonetheless be subject to a withholding tax of 30% on the gross amount of certain U.S.-source income which is not effectively connected with a U.S. trade or business. Income subjected to such a flat tax rate is income of a fixed or determinable annual or periodic nature, including dividends and certain interest income. Such withholding tax may be reduced or eliminated with respect to certain types of income under an applicable income tax treaty between the United States and your country of residence or under the “portfolio interest” rules or other provisions of the U.S. Internal Revenue Code, provided that you provide proper certification as to your eligibility for such treatment. Notwithstanding the foregoing, and although each Non-U.S. Holder is required to provide us with an IRS Form W-8, we nevertheless may be unable to accurately or timely determine the tax status of our investors for purposes of establishing whether reduced rates of withholding apply to some or all of our investors. In such a case, your allocable share of distributions of U.S.-source dividend and interest income will be subject to U.S. withholding tax at a rate of 30%. Further, if you would not be subject to U.S. tax based on your tax status or otherwise were eligible for a reduced rate of U.S. withholding, you might need to take additional steps to receive a credit or refund of any excess withholding tax paid on your account, which could include the filing of a non-resident U.S. income tax return with the IRS. Among other limitations applicable to claiming treaty benefits, if you reside in a treaty jurisdiction which does not treat our partnership as a pass-through entity, you might not be eligible to receive a refund or credit of excess U.S. withholding taxes paid on your account. In the event you transfer or otherwise dispose of some or all of your units, special rules may apply for purposes of determining whether you or the transferee of such units are subject to U.S. withholding taxes in respect of income allocable to, or distributions made on account of, such units or entitled to refunds of any such taxes withheld. See “—Administrative Matters—Certain Effects of a Transfer of Units”. You should consult your own tax adviser regarding the treatment of U.S. withholding taxes.

Special rules may apply to any Non-U.S. Holder (i) that has an office or fixed place of business in the United States; (ii) that is present in the United States for 183 days or more in a taxable year; or (iii) that is (a) a former citizen or long-term resident of the United States, (b) a foreign insurance company that is treated as holding a partnership interest in our partnership in connection with its U.S. business, (c) a PFIC, or (d) a corporation that accumulates earnings to avoid U.S. federal income tax. You should consult your own tax adviser regarding the application of these special rules.

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Taxes in Other Jurisdictions

In addition to U.S. federal income tax consequences, an investment in our partnership could subject you to U.S. state and local taxes in the U.S. state or locality in which you are a resident for tax purposes. You could also be subject to tax return filing obligations and income, franchise, or other taxes, including withholding taxes, in non-U.S. jurisdictions in which we invest. We will attempt, to the extent reasonably practicable, to structure our operations and investments so as to avoid income tax filing obligations by U.S. Holders in non-U.S. jurisdictions. However, there may be circumstances in which we are unable to do so. Income or gain from investments held by our partnership may be subject to withholding or other taxes in jurisdictions outside the United States, except to the extent an income tax treaty applies. If you wish to claim the benefit of an applicable income tax treaty, you might be required to submit information to tax authorities in such jurisdictions. You should consult your own tax adviser regarding the U.S. state, local, and non-U.S. tax consequences of an investment in our partnership.

Administrative Matters

Information Returns and Audit Procedures

We have agreed to use commercially reasonable efforts to furnish to you, within 90 days after the close of each calendar year, U.S. tax information (including IRS Schedule K-1) which describes on a U.S. dollar basis your share of our partnership’s income, gain, loss and deduction for our preceding taxable year. However, providing this U.S. tax information to our unitholders will be subject to delay in the event of, among other reasons, the late receipt of any necessary tax information from lower-tier entities. It is therefore possible that, in any taxable year, you will need to apply for an extension of time to file your tax returns. In addition, unitholders that do not ordinarily have U.S. federal tax filing requirements will not receive a Schedule K-1 and related information unless such unitholders request it within 60 days after the close of each calendar year. In preparing this U.S. tax information, we will use various accounting and reporting conventions, some of which have been mentioned in the previous discussion, to determine your share of income, gain, loss and deduction. The IRS may successfully contend that certain of these reporting conventions are impermissible, which could result in an adjustment to your income or loss.

Our partnership may be audited by the IRS. Adjustments resulting from an IRS audit could require you to adjust a prior year’s tax liability and result in an audit of your own tax return. Any audit of your tax return could result in adjustments not related to our partnership’s tax returns, as well as those related to our partnership’s tax returns. Under the Bipartisan Budget Act of 2015, for taxable years beginning after December 31, 2017, if the IRS makes an audit adjustment to our income tax returns, it may assess and collect any taxes (including penalties and interest) resulting from such audit adjustment directly from our partnership instead of unitholders (as under prior law). We may be permitted to elect to have our General Partner and our unitholders take such audit adjustment into account in accordance with their interests in us during the taxable year under audit. However, there can be no assurance that we will choose to make such election or that it will be available in all circumstances. If we do not make the election, and we pay taxes, penalties, or interest as a result of an audit adjustment, then cash available for distribution to our unitholders might be substantially reduced. As a result, our current unitholders might bear some or all of the cost of the tax liability resulting from such audit adjustment, even if our current unitholders did not own our units during the taxable year under audit. The foregoing considerations also apply with respect to our partnership’s interest in the Holding LP.

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For taxable years beginning on or before December 31, 2017, our General Partner will act as our partnership’s “tax matters partner.” As the tax matters partner, our General Partner will have the authority, subject to certain restrictions, to act on behalf of our partnership in connection with any administrative or judicial review of our partnership’s items of income, gain, loss, deduction, or credit. For taxable years beginning after December 31, 2017, a “partnership representative” designated by our partnership will have the sole authority to act on behalf of our partnership in connection with such administrative or judicial review. In particular, our partnership representative will have the sole authority to bind both our former and current unitholders and to make certain elections on behalf of our partnership pursuant to the Bipartisan Budget Act of 2015.

The application of the Bipartisan Budget Act of 2015 to our partnership and our unitholders is uncertain and remains subject to Treasury Regulations and IRS guidance yet to be made final. You should consult your own tax adviser regarding the implications of the Bipartisan Budget Act of 2015 for an investment in our units.

Tax Shelter Regulations and Related Reporting Requirements

If we were to engage in a “reportable transaction”, we (and possibly our unitholders) would be required to make a detailed disclosure of the transaction to the IRS in accordance with regulations governing tax shelters and other potentially tax-motivated transactions. A transaction may be a reportable transaction based upon any of several factors, including the fact that it is a type of tax avoidance transaction publicly identified by the IRS as a “listed transaction” or “transaction of interest”, or that it produces certain kinds of losses exceeding certain thresholds. An investment in our partnership may be considered a “reportable transaction” if, for example, our partnership were to recognize certain significant losses in the future. In certain circumstances, a unitholder who disposes of an interest in a transaction resulting in the recognition by such holder of significant losses in excess of certain threshold amounts may be obligated to disclose its participation in such transaction. Certain of these rules are unclear, and the scope of reportable transactions can change retroactively. Therefore, it is possible that the rules may apply to transactions other than significant loss transactions.

Moreover, if we were to participate in a reportable transaction with a significant purpose to avoid or evade tax, or in any listed transaction, you might be subject to significant accuracy-related penalties with a broad scope, for those persons otherwise entitled to deduct interest on federal tax deficiencies, non-deductibility of interest on any resulting tax liability, and in the case of a listed transaction, an extended statute of limitations. We do not intend to participate in any reportable transaction with a significant purpose to avoid or evade tax, nor do we intend to participate in any listed transactions. However, no assurance can be provided that the IRS will not assert that we have participated in such a transaction.

You should consult your own tax adviser concerning any possible disclosure obligation under the regulations governing tax shelters with respect to the disposition of our units.

Taxable Year

Our partnership uses the calendar year as its taxable year for U.S. federal income tax purposes. Under certain circumstances which we currently believe are unlikely to apply, a taxable year other than the calendar year may be required for such purposes.

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Withholding and Backup Withholding

For each calendar year, we will report to you and to the IRS the amount of distributions that we pay, and the amount of tax (if any) that we withhold on these distributions. The proper application to our partnership of the rules for withholding under Sections 1441 through 1446 of the U.S. Internal Revenue Code (applicable to certain dividends, interest, and amounts treated as effectively connected with a U.S. trade or business, among other items) is unclear. Because the documentation we receive may not properly reflect the identities of unitholders at any particular time (in light of possible sales of our units), we may over-withhold or under-withhold with respect to a particular unitholder. For example, we may impose withholding, remit such amount to the IRS and thus reduce the amount of a distribution paid to a Non-U.S. Holder. It may be the case, however, that the corresponding amount of our income was not properly allocable to such holder, and the appropriate amount of withholding should have been less than the actual amount withheld. Such Non-U.S. Holder would be entitled to a credit against the holder’s U.S. federal income tax liability for all withholding, including any such excess withholding. However, if the withheld amount were to exceed the holder’s U.S. federal income tax liability, the holder would need to apply for a refund to obtain the benefit of such excess withholding. Similarly, we may fail to withhold on a distribution, and it may be the case that the corresponding income was properly allocable to a Non-U.S. Holder and that withholding should have been imposed. In such case, we intend to pay the under-withheld amount to the IRS, and we may treat such under-withholding as an expense that will be borne indirectly by all unitholders on a pro rata basis (since we may be unable to allocate any such excess withholding tax cost to the relevant Non-U.S. Holder).

Under the backup withholding rules, you may be subject to backup withholding tax with respect to distributions paid unless: (i) you are an exempt recipient and demonstrate this fact when required; or (ii) provide a taxpayer identification number, certify as to no loss of exemption from backup withholding tax, and otherwise comply with the applicable requirements of the backup withholding tax rules. A U.S. Holder that is exempt should certify such status on a properly completed IRS Form W-9. A Non-U.S. Holder may qualify as an exempt recipient by submitting a properly completed IRS Form W-8. Backup withholding is not an additional tax. The amount of any backup withholding from a payment to you will be allowed as a credit against your U.S. federal income tax liability and may entitle you to a refund from the IRS, provided you supply the required information to the IRS in a timely manner.

If you do not timely provide our partnership, or the applicable nominee, broker, clearing agent, or other intermediary, with IRS Form W-9 or IRS Form W-8, as applicable, or such form is not properly completed, then our partnership may become subject to U.S. backup withholding taxes in excess of what would have been imposed had our partnership or the applicable intermediary received properly completed forms from all unitholders. For administrative reasons, and in order to maintain the fungibility of our units, such excess U.S. backup withholding taxes, and if necessary similar items, may be treated by our partnership as an expense that will be borne indirectly by all unitholders on a pro rata basis (e.g., since it may be impractical for us to allocate any such excess withholding tax cost to the unitholders that failed to timely provide the proper U.S. tax forms).

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Foreign Account Tax Compliance

FATCA imposes a 30% withholding tax on “withholdable payments” made to a “foreign financial institution” or a “non-financial foreign entity”, unless such financial institution or entity satisfies certain information reporting or other requirements. Withholdable payments include certain U.S.-source income, such as interest, dividends, and other passive income. Beginning January 1, 2019, withholdable payments also include gross proceeds from the sale or disposition of property that can produce U.S.-source interest or dividends. We intend to comply with FATCA, so as to ensure that the 30% withholding tax does not apply to any withholdable payments received by our partnership, the Holding LP, the Holding Entities, or the operating entities. Nonetheless, the 30% withholding tax may also apply to your allocable share of distributions attributable to withholdable payments, unless you properly certify your FATCA status on IRS Form W-8 or IRS Form W-9 (as applicable) and satisfy any additional requirements under FATCA.

In compliance with FATCA, information regarding certain unitholders’ ownership of our units may be reported to the IRS or to a non-U.S. governmental authority. FATCA remains subject to modification by an applicable intergovernmental agreement between the United States and another country, such as the agreement in effect between the United States and Bermuda for cooperation to facilitate the implementation of FATCA, or by future Treasury Regulations or guidance. You should consult your own tax adviser regarding the consequences under FATCA of an investment in our units.

Information Reporting with Respect to Foreign Financial Assets

Under Treasury Regulations, certain U.S. persons that own “specified foreign financial assets” with an aggregate fair market value exceeding either $50,000 on the last day of the taxable year or $75,000 at any time during the taxable year generally are required to file an information report with respect to such assets with their tax returns. Significant penalties may apply to persons who fail to comply with these rules. Specified foreign financial assets include not only financial accounts maintained in foreign financial institutions, but also, unless held in accounts maintained by a financial institution, any stock or security issued by a non-U.S. person, any financial instrument or contract held for investment that has an issuer or counterparty other than a U.S. person, and any interest in a foreign entity. The failure to report information required under the current regulations could result in substantial penalties and in the extension of the statute of limitations with respect to federal income tax returns filed by you. You should consult your own tax adviser regarding the possible implications of these Treasury Regulations for an investment in our units.

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Certain Effects of a Transfer of Units

Our partnership may allocate items of income, gain, loss, deduction, and credit using a monthly convention, whereby any such items recognized in a given month by our partnership are allocated to our unitholders as of a specified date of such month. Any U.S. withholding taxes applicable to dividends received by the Holding LP (and, in turn, our partnership) generally will be withheld by our partnership only when such dividends are paid. Because our partnership generally intends to distribute amounts received in respect of dividends shortly after receipt of such amounts, it is generally expected that any U.S. withholding taxes withheld by our partnership on such amounts will correspond to our unitholders who were allocated income and who received the distributions in respect of such amounts. The Holding LP may invest in debt obligations or other securities for which the accrual of interest or income thereon is not matched by a contemporaneous receipt of cash. Any such accrued interest or other income would be allocated pursuant to such monthly convention. Consequently, our unitholders may recognize income in excess of cash distributions received from our partnership, and any income so included by a unitholder would increase the basis such unitholder has in our units and would offset any gain (or increase the amount of loss) realized by such unitholder on a subsequent disposition of its units. In addition, U.S. withholding taxes generally would be withheld by our partnership only on the payment of cash in respect of such accrued interest or other income, and, therefore, it is possible that some unitholders would be allocated income which might be distributed to a subsequent unitholder, and such subsequent unitholder would be subject to withholding at the time of distribution. As a result, the subsequent unitholder, and not the unitholder who was allocated income, would be entitled to claim any available credit with respect to such withholding.

The Holding LP has invested and will continue to invest in certain Holding Entities and operating entities organized in non-U.S. jurisdictions, and income and gain from such investments may be subject to withholding and other taxes in such jurisdictions. If any such non-U.S. taxes were imposed on income allocable to a U.S. Holder, and such holder were thereafter to dispose of its units prior to the date distributions were made in respect of such income, under applicable provisions of the U.S. Internal Revenue Code and Treasury Regulations, the unitholder to whom such income was allocated (and not the unitholder to whom distributions were ultimately made) would, subject to other applicable limitations, be the party permitted to claim a credit for such non-U.S. taxes for U.S. federal income tax purposes. Thus a unitholder may be affected either favourably or adversely by the foregoing rules. Complex rules may, depending on a unitholder’s particular circumstances, limit the availability or use of foreign tax credits, and you are urged to consult your own tax adviser regarding all aspects of foreign tax credits.

Nominee Reporting

Persons who hold an interest in our partnership as a nominee for another person may be required to furnish to us:

(i) the name, address and taxpayer identification number of the beneficial owner and the nominee;

(ii) whether the beneficial owner is (a) a person that is not a U.S. person, (b) a foreign government, an international organization, or any wholly-owned agency or instrumentality of either of the foregoing, or (c) a tax-exempt entity;

(iii) the amount and description of units held, acquired, or transferred for the beneficial owner; and

(iv) specific information including the dates of acquisitions and transfers, means of acquisitions and transfers, and acquisition cost for purchases, as well as the amount of net proceeds from sales.

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Brokers and financial institutions may be required to furnish additional information, including whether they are U.S. persons and specific information on units they acquire, hold, or transfer for their own account. A penalty of $250 per failure (as adjusted for inflation), up to a maximum of $3,000,000 per calendar year (as adjusted for inflation), generally is imposed by the U.S. Internal Revenue Code for the failure to report such information to us. The nominee is required to supply the beneficial owner of our units with the information furnished to us.

New Legislation or Administrative or Judicial Action

The U.S. federal income tax treatment of our unitholders depends, in some instances, on determinations of fact and interpretations of complex provisions of U.S. federal income tax law for which no clear precedent or authority may be available. You should be aware that the U.S. federal income tax rules, particularly those applicable to partnerships, are constantly under review (including currently) by the Congressional tax-writing committees and other persons involved in the legislative process, the IRS, the U.S. Treasury Department and the courts, frequently resulting in revised interpretations of established concepts, statutory changes, revisions to regulations and other modifications and interpretations, any of which could adversely affect the value of our units and be effective on a retroactive basis. For example, changes to the U.S. federal tax laws and interpretations thereof could make it more difficult or impossible for our partnership to be treated as a partnership that is not taxable as a corporation for U.S. federal income tax purposes, change the character or treatment of portions of our partnership’s income (including changes that recharacterize certain allocations as potentially non-deductible fees), reduce the net amount of distributions available to our unitholders, or otherwise affect the tax considerations of owning our units. Such changes could also affect or cause our partnership to change the way it conducts its activities and adversely affect the value of our units.

Our partnership’s organizational documents and agreements permit our General Partner to modify our Limited Partnership Agreement from time to time, without the consent of our unitholders, to elect to treat our partnership as a corporation for U.S. federal tax purposes, or to address certain changes in U.S. federal income tax regulations, legislation or interpretation. In some circumstances, such revisions could have a material adverse impact on some or all of our unitholders.

THE FOREGOING DISCUSSION IS NOT INTENDED AS A SUBSTITUTE FOR CAREFUL TAX PLANNING. THE TAX MATTERS RELATING TO OUR PARTNERSHIP AND UNITHOLDERS ARE COMPLEX AND ARE SUBJECT TO VARYING INTERPRETATIONS. MOREOVER, THE EFFECT OF EXISTING INCOME TAX LAWS, THE MEANING AND IMPACT OF WHICH IS UNCERTAIN, AND OF PROPOSED CHANGES IN INCOME TAX LAWS WILL VARY WITH THE PARTICULAR CIRCUMSTANCES OF EACH UNITHOLDER, AND IN REVIEWING THIS ANNUAL REPORT ON FORM 20-F THESE MATTERS SHOULD BE CONSIDERED. EACH UNITHOLDER SHOULD CONSULT ITS OWN TAX ADVISER WITH RESPECT TO THE U.S. FEDERAL, STATE, LOCAL, AND OTHER TAX CONSEQUENCES OF ANY INVESTMENT IN OUR UNITS.

CERTAIN MATERIAL CANADIAN FEDERAL INCOME TAX CONSIDERATIONS

In the following portion of the summary, references to our “units” are to the limited partnership units in our partnership, including the preferred units, and references to our “unitholders” are to the holders of our units and preferred units.

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The following is a summary of the principal Canadian federal income tax consequences under the Tax Act of the holding and disposition of units in our partnership generally applicable to a holder who, for purposes of the Tax Act and at all relevant times, holds our units as capital property, deals at arm’s length with and is not affiliated with our partnership, the Holding LP, our General Partner or their respective affiliates (a “Holder”). Generally, our units will be considered to be capital property to a Holder, provided that the Holder does not use or hold our units in the course of carrying on a business of trading or dealing in securities, and has not acquired them in one or more transactions considered to be an adventure or concern in the nature of trade.

This summary is not applicable to a Holder: (i) that is a “financial institution” (as defined in the Tax Act) for purposes of the “mark-to-market” property rules; (ii) that is a “specified financial institution” (as defined in the Tax Act); (iii) who makes or has made a functional currency reporting election pursuant to section 261 of the Tax Act; (iv) an interest in which would be a “tax shelter investment” (as defined in the Tax Act) or who acquires our units as a “tax shelter investment” (and this summary assumes that no such persons hold our units); (v) that has, directly or indirectly, a “significant interest” (as defined in subsection 34.2(1) of the Tax Act) in our partnership; (vi) if any affiliate of our partnership is, or becomes as part of a series of transactions that includes the acquisition of our units, a “foreign affiliate” (for purposes of the Tax Act) to such Holder or to any corporation that does not deal at arm’s length with such Holder for purposes of the Tax Act, or (vii) that has entered or will enter into a “derivative forward agreement” (as defined in the Tax Act) in respect of our units. Any such Holders should consult their own tax advisors with respect to an investment in our units.

This summary is based on the current provisions of the Tax Act, all specific proposals to amend the Tax Act publicly announced by or on behalf of the Minister of Finance (Canada) prior to the date hereof (the “Tax Proposals”), and the current published administrative and assessing policies and practices of the CRA. This summary assumes that all Tax Proposals will be enacted in the form proposed but no assurance can be given that the Tax Proposals will be enacted in the form proposed or at all.

This summary does not otherwise take into account or anticipate any changes in law, whether by judicial, administrative or legislative decision or action, or changes in the CRA’s administrative and assessing policies and practices, nor does it take into account provincial, territorial or foreign income tax legislation or considerations, which may differ significantly from those described herein. This summary is not exhaustive of all possible Canadian federal income tax consequences that may affect unitholders. Holders should consult their own tax advisors in respect of the provincial, territorial or foreign income tax consequences to them of holding and disposing of our units.

This summary also assumes that neither our partnership nor the Holding LP is a “tax shelter” (as defined in the Tax Act) or a “tax shelter investment”. However, no assurance can be given in this regard.

This summary also assumes that neither our partnership nor the Holding LP will be a “SIFT partnership” at any relevant time for purposes of the SIFT Rules on the basis that neither our partnership nor the Holding LP will be a “Canadian resident partnership” at any relevant time. However, there can be no assurance that the SIFT Rules will not be revised or amended such that the SIFT Rules will apply.

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This summary does not address the deductibility of interest on money borrowed to acquire our units nor whether any amounts in respect of the units could be “split income” for purposes of the Tax Act or the Tax Proposals.

This summary is of a general nature only and is not intended to be, nor should it be construed to be, legal or tax advice to any particular Holder, and no representation with respect to the Canadian federal income tax consequences to any particular Holder is made. Consequently, Holders are advised to consult their own tax advisors with respect to their particular circumstances. See also Item 3.D “Risk Factors—Risks Related to Taxation—Canada”.

For purposes of the Tax Act, all amounts relating to the acquisition, holding or disposition of our units must be expressed in Canadian dollars including any distributions, adjusted cost base and proceeds of disposition. For purposes of the Tax Act, amounts denominated in a currency other than the Canadian dollar generally must be converted into Canadian dollars using the appropriate exchange rate determined in accordance with the detailed rules in the Tax Act in that regard.

Holders Resident in Canada

The following portion of the summary is generally applicable to a Holder who, for purposes of the Tax Act and at all relevant times, is resident or deemed to be resident in Canada (“Canadian Holder”).

Computation of Income or Loss

Each Canadian Holder is required to include (or, subject to the “at-risk rules” discussed below, entitled to deduct) in computing his or her income for a particular taxation year, the Canadian Holder’s share of the income (or loss) of our partnership for its fiscal year ending in, or coincidentally with, the Canadian Holder’s taxation year end, whether or not any of that income is distributed to the Canadian Holder in the taxation year and regardless of whether or not our units were held throughout such year.

Our partnership will not itself be a taxable entity and is not expected to be required to file an income tax return in Canada for any taxation year. However, the income (or loss) of our partnership for a fiscal period for purposes of the Tax Act will be computed as if it were a separate person resident in Canada and the partners will be allocated a share of that income (or loss) in accordance with our partnership’s Limited Partnership Agreement. The income (or loss) of our partnership will include our partnership’s share of the income (or loss) of the Holding LP for a fiscal year determined in accordance with the Holding LP’s limited partnership agreement. For this purpose, our partnership’s fiscal year end and that of the Holding LP will be December 31.

The income for tax purposes of our partnership for a given fiscal year will be allocated to each Canadian Holder in an amount calculated by multiplying such income that is allocable to unitholders by a fraction, the numerator of which is the sum of the distributions received by such Canadian Holder with respect to such fiscal year and the denominator of which is the aggregate amount of the distributions made by our partnership to all partners with respect to such fiscal year, subject to adjustment in respect of distributions on the preferred units that are in satisfaction of accrued distributions on the preferred units that were not paid in a previous fiscal year of our partnership where our General Partner determines that the allocation to preferred unitholders based on such distributions would result in a preferred unitholder being allocated more income than it would have been if the distributions were paid in the fiscal year of our partnership in which they were accrued.

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If, with respect to a given fiscal year, no distribution is made by our partnership or our partnership has a loss for tax purposes, one quarter of the income, or loss, as the case may be, for tax purposes of our partnership for such fiscal year that is allocable to unitholders, will be allocated to the Canadian Holders of record at the end of each calendar quarter ending in such fiscal year as follows: (i) to the holders of preferred units in respect of the preferred units held by them on each such date, such amount of our partnership’s income or loss for tax purposes, as the case may be, as our General Partner determines is reasonable in the circumstances having regard to such factors as our General Partner considers to be relevant, including, without limitation, the relative amount of capital contributed to our partnership on the issuance of preferred units as compared to all other units and the relative fair market value of the preferred units, as the case may be, as compared to all other units, and (ii) to the partners other than in respect of the preferred units, the remaining amount of our partnership’s income or loss for tax purposes, as the case may be, pro rata in the proportion that the number of units of our partnership (other than the preferred units) held at each such date by a unitholder is of the total number of units of our partnership (other than the preferred units) that are issued and outstanding at each such date.

The income of our partnership as determined for purposes of the Tax Act may differ from its income as determined for accounting purposes and may not be matched by cash distributions. In addition, for purposes of the Tax Act, all income (or losses) of our partnership and the Holding LP must be calculated in Canadian currency. Where our partnership (or the Holding LP) holds investments denominated in U.S. dollars or other foreign currencies, gains and losses may be realized by our partnership as a consequence of fluctuations in the relative values of the Canadian and foreign currencies.

In computing the income (or loss) of our partnership, deductions may be claimed in respect of reasonable administrative costs, interest and other expenses incurred by our partnership for the purpose of earning income, subject to the relevant provisions of the Tax Act. Our partnership may also deduct from its income for the year a portion of the reasonable expenses, if any, incurred by our partnership to issue units. The portion of such issue expenses deductible by our partnership in a taxation year is 20% of such issue expenses, pro-rated where our partnership’s taxation year is less than 365 days.

In general, a Canadian Holder’s share of any income (or loss) from our partnership from a particular source will be treated as if it were income (or loss) of the Canadian Holder from that source, and any provisions of the Tax Act applicable to that type of income (or loss) will apply to the Canadian Holder. Our partnership will invest in partnership units of the Holding LP. In computing our partnership’s income (or loss) under the Tax Act, the Holding LP will itself be deemed to be a separate person resident in Canada which computes its income (or loss) and allocates to its partners their respective share of such income (or loss). Accordingly, the source and character of amounts included in (or deducted from) the income of Canadian Holders on account of income (or loss) earned by the Holding LP generally will be determined by reference to the source and character of such amounts when earned by the Holding LP.

A Canadian Holder’s share of taxable dividends received or considered to be received by our partnership in a fiscal year from a corporation resident in Canada will be treated as a dividend received by the Canadian Holder and will be subject to the normal rules in the Tax Act applicable to such dividends, including the enhanced gross-up and dividend tax credit for “eligible dividends” (as defined in the Tax Act) when the dividend received by the Holding LP is designated as an “eligible dividend”.

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Foreign taxes paid by our partnership or the Holding LP and taxes withheld at source on amounts paid or credited to our partnership or the Holding LP (other than for the account of a particular partner) will be allocated pursuant to the governing partnership agreement. Each Canadian Holder’s share of the “business-income tax” and “non-business-income tax” paid to the government of a foreign country for a year will be creditable against its Canadian federal income tax liability to the extent permitted by the detailed foreign tax credit rules contained in the Tax Act. Although the foreign tax credit rules are designed to avoid double taxation, the maximum credit is limited. Because of this, and because of timing differences in recognition of expenses and income and other factors, the foreign tax credit rules may not provide a full foreign tax credit for the “business-income tax” and “non-business-income tax” paid by our partnership or the Holding LP to the government of a foreign country. The Tax Act contains anti-avoidance rules to address certain foreign tax credit generator transactions. Under the Foreign Tax Credit Generator Rules, the foreign “business-income tax” or “non-business-income tax” allocated to a Canadian Holder for the purpose of determining such Canadian Holder’s foreign tax credit for any taxation year may be limited in certain circumstances, including where a Canadian Holder’s share of the income of our partnership or the Holding LP under the income tax laws of any country (other than Canada) under whose laws the income of our partnership or the Holding LP is subject to income taxation (the “Relevant Foreign Tax Law”) is less than the Canadian Holder’s share of such income for purposes of the Tax Act. For this purpose, a Canadian Holder is not considered to have a lesser direct or indirect share of the income of our partnership or the Holding LP under the Relevant Foreign Tax Law than for the purposes of the Tax Act solely because, among other reasons, of a difference between the Relevant Foreign Tax Law and the Tax Act in the manner of computing the income of our partnership or the Holding LP or in the manner of allocating the income of our partnership or the Holding LP because of the admission or withdrawal of a partner. No assurance can be given that the Foreign Tax Credit Generator Rules will not apply to any Canadian Holder. If the Foreign Tax Credit Generator Rules apply, the allocation to a Canadian Holder of foreign “business-income tax” or “non-business-income tax” paid by our partnership or the Holding LP, and therefore such Canadian Holder’s foreign tax credits, will be limited.

Our partnership and the Holding LP will each be deemed to be a non-resident person in respect of certain amounts paid or credited or deemed to be paid or credited to them by a person resident or deemed to be resident in Canada, including dividends or interest. Dividends or interest (other than interest not subject to Canadian federal withholding tax) paid or deemed to be paid by a person resident or deemed to be resident in Canada to the Holding LP will be subject to withholding tax under Part XIII of the Tax Act at the rate of 25%. However, the CRA’s administrative practice in similar circumstances is to permit the rate of Canadian federal withholding tax applicable to such payments to be computed by looking through the partnership and taking into account the residency of the partners (including partners who are resident in Canada) and any reduced rates of Canadian federal withholding tax that any non-resident partners may be entitled to under an applicable income tax treaty or convention, provided that the residency status and entitlement to the treaty benefits can be established. In determining the rate of Canadian federal withholding tax applicable to amounts paid by the Holding Entities to the Holding LP, our General Partner expects the Holding Entities to look-through the Holding LP and our partnership to the residency of the partners of our partnership (including partners who are resident in Canada) and to take into account any reduced rates of Canadian federal withholding tax that non-resident partners may be entitled to under an applicable income tax treaty or convention in order to determine the appropriate amount of Canadian federal withholding tax to withhold from dividends or interest paid to the Holding LP. However, there can be no assurance that the CRA will apply its administrative practice in this context. Under the Treaty, a Canadian-resident payer is required in certain circumstances to look-through fiscally transparent partnerships, such as our partnership and the Holding LP, to the residency and Treaty entitlements of their partners and to take into account the reduced rates of Canadian federal withholding tax that such partners may be entitled to under the Treaty.

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If our partnership incurs losses for tax purposes, each Canadian Holder will be entitled to deduct in the computation of income for tax purposes the Canadian Holder’s share of any net losses for tax purposes of our partnership for its fiscal year to the extent that the Canadian Holder’s investment is “at-risk” within the meaning of the Tax Act. The Tax Act contains “at-risk rules” which may, in certain circumstances, restrict the deduction of a limited partner’s share of any losses of a limited partnership. Our General Partner does not anticipate that our partnership or the Holding LP will incur losses but no assurance can be given in this regard. Accordingly, Canadian Holders should consult their own tax advisors for specific advice with respect to the potential application of the “at-risk rules”.

Section 94.1 of the Tax Act contains rules relating to interests held by a taxpayer in Non-Resident Entities that could, in certain circumstances, cause income to be imputed to Canadian Holders, either directly or by way of allocation of such income imputed to our partnership or the Holding LP. These rules would apply if it is reasonable to conclude, having regard to all the circumstances, that one of the main reasons for the Canadian Holder, our partnership or the Holding LP acquiring, holding or having an investment in a Non-Resident Entity is to derive a benefit from “portfolio investments” in certain assets from which the Non-Resident Entity may reasonably be considered to derive its value in such a manner that taxes under the Tax Act on income, profits and gains from such assets for any year are significantly less than they would have been if such income, profits and gains had been earned directly. In determining whether this is the case, section 94.1 of the Tax Act provides that consideration must be given to, among other factors, the extent to which the income, profits and gains for any fiscal period are distributed in that or the immediately following fiscal period. No assurance can be given that section 94.1 of the Tax Act will not apply to a Canadian Holder, our partnership or the Holding LP. If these rules apply to a Canadian Holder, our partnership or the Holding LP, income, determined by reference to a prescribed rate of interest plus two percent applied to the “designated cost” (as defined in section 94.1 of the Tax Act) of the interest in the Non-Resident Entity, will be imputed directly to the Holder or to our partnership or the Holding LP and allocated to the Canadian Holder in accordance with the rules in section 94.1 of the Tax Act. The rules in section 94.1 of the Tax Act are complex and Canadian Holders should consult their own tax advisors regarding the application of these rules to them in their particular circumstances.

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Certain of the Non-Resident Subsidiaries in which the Holding LP directly invests are expected to be CFAs of the Holding LP. Dividends paid to the Holding LP by a CFA of the Holding LP will be included in computing the income of the Holding LP. To the extent that any CFA or Indirect CFA of the Holding LP earns income that is characterized as FAPI in a particular taxation year of the CFA or Indirect CFA, the FAPI allocable to the Holding LP under the rules in the Tax Act must be included in computing the income of the Holding LP for Canadian federal income tax purposes for the fiscal period of the Holding LP in which the taxation year of that CFA or Indirect CFA ends, whether or not the Holding LP actually receives a distribution of that FAPI. Our partnership will include its share of such FAPI of the Holding LP in computing its income for Canadian federal income tax purposes and Canadian Holders will be required to include their proportionate share of such FAPI allocated from our partnership in computing their income for Canadian federal income tax purposes. As a result, Canadian Holders may be required to include amounts in their income even though they have not and may not receive an actual cash distribution of such amounts. If an amount of FAPI is included in computing the income of the Holding LP for Canadian federal income tax purposes, an amount may be deductible in respect of the “foreign accrual tax” applicable to the FAPI. Any amount of FAPI included in income net of the amount of any deduction in respect of “foreign accrual tax” will increase the adjusted cost base to the Holding LP of its shares of the particular CFA in respect of which the FAPI was included. At such time as the Holding LP receives a dividend of this type of income that was previously included in the Holding LP’s income as FAPI, such dividend will effectively not be included in computing the income of the Holding LP and there will be a corresponding reduction in the adjusted cost base to the Holding LP of the particular CFA shares. Under the Foreign Tax Credit Generator Rules, the “foreign accrual tax” applicable to a particular amount of FAPI included in the Holding LP’s income in respect of a particular “foreign affiliate” of the Holding LP may be limited in certain specified circumstances, including where the direct or indirect share of the income allocated to any member of the Holding LP (which is deemed for this purpose to include a Canadian Holder) that is a person resident in Canada or a “foreign affiliate” of such a person is, under a Relevant Foreign Tax Law, less than such member’s share of such income for purposes of the Tax Act. No assurance can be given that the Foreign Tax Credit Generator Rules will not apply to the Holding LP. For this purpose, a Canadian Holder is not considered to have a lesser direct or indirect share of the income of the Holding LP under the Relevant Foreign Tax Law than for the purposes of the Tax Act solely because, among other reasons, of a difference between the Relevant Foreign Tax Law and the Tax Act in the manner of computing the income of the Holding LP or in the manner of allocating the income of the Holding LP because of the admission or withdrawal of a partner. If the Foreign Tax Credit Generator Rules apply, the “foreign accrual tax” applicable to a particular amount of FAPI included in the Holding LP’s income in respect of a particular “foreign affiliate” of the Holding LP will be limited.

Disposition of Units

The disposition (or deemed disposition) by a Canadian Holder of a unit of any class or series will result in the realization of a capital gain (or capital loss) by such Canadian Holder in the amount, if any, by which the proceeds of disposition of the unit, less any reasonable costs of disposition, exceed (or are exceeded by) the adjusted cost base of such unit.

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Subject to the general rules on averaging of cost base, the adjusted cost base of each class or series of a Canadian Holder’s units would generally be equal to: (i) the actual cost of such class or series of units (excluding any portion thereof financed with limited recourse indebtedness); plus (ii) the share of the income of our partnership allocated to the Canadian Holder for fiscal years of our partnership ending before the relevant time in respect of the particular class or series of units; less (iii) the aggregate of the share of losses of our partnership allocated to the Canadian Holder (other than losses which cannot be deducted because they exceed the Canadian Holder’s “at-risk” amount) for the fiscal years of our partnership ending before the relevant time in respect of the particular class or series of units; and less (iv) the Canadian Holder’s distributions from our partnership made before the relevant time in respect of the particular class or series of units.

The foregoing discussion of the calculation of the adjusted cost base assumes that each class or series of partnership interests in our partnership are treated as separate property for purposes of the Tax Act. However, the CRA’s position is to treat all the different types of interests in a partnership that a partner may hold as one capital property, including for purposes of determining the adjusted cost base of all such partnership interests. As a result, on a disposition of a particular type of unit, a partner’s total adjusted cost base is required to be allocated in a reasonable manner to the particular type of unit being disposed of. As acknowledged by the CRA, there is no particular method for determining a reasonable allocation of the adjusted cost base of a partnership interest to the part of the partnership interest that is disposed of. Furthermore, more than one method may be reasonable. If the CRA’s position applies, on a disposition by a Canadian Holder of a particular type of units of our partnership, the Canadian Holder should generally be able to allocate his or her adjusted cost base in a manner that treats the different classes and series of units of our partnership as separate property. Accordingly, the General Partner intends to provide unitholders with partnership information returns using such allocation.

Where a Canadian Holder disposes of all of its units in our partnership, it will no longer be a partner of our partnership. If, however, a Canadian Holder is entitled to receive a distribution from our partnership after the disposition of all such units, then the Canadian Holder will be deemed to dispose of such units at the later of: (i) the end of the fiscal year of our partnership during which the disposition occurred; and (ii) the date of the last distribution made by our partnership to which the Canadian Holder was entitled. The share of the income (or loss) of our partnership for tax purposes for a particular fiscal year which is allocated to a Canadian Holder who has ceased to be a partner will generally be added (or deducted) in the computation of the adjusted cost base of the Canadian Holder’s units in our partnership immediately prior to the time of the disposition.

A Canadian Holder will generally realize a deemed capital gain if, and to the extent that, the adjusted cost base of the Canadian Holder’s units is negative at the end of any fiscal year of our partnership. In such a case, the adjusted cost base of the Canadian Holder’s units will be nil at the beginning of the next fiscal year of our partnership.

Canadian Holders should consult their own tax advisors for advice with respect to the specific tax consequences to them of disposing of our units.

Taxation of Capital Gains and Capital Losses

In general, one-half of a capital gain realized by a Canadian Holder must be included in computing such Canadian Holder’s income as a taxable capital gain. One-half of a capital loss is deducted as an allowable capital loss against taxable capital gains realized in the year and any remainder may be deducted against net taxable capital gains in any of the three years preceding the year or any year following the year to the extent and under the circumstances described in the Tax Act.

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Special rules in the Tax Act may apply to disallow the one-half treatment on all or a portion of a capital gain realized on a disposition of our units if a partnership interest is acquired by a tax-exempt person or a non-resident person (or by a partnership or trust (other than certain trusts) of which a tax-exempt person or a non-resident person is a member or beneficiary, directly or indirectly through one or more partnerships or trusts (other than certain trusts)). Our General Partner does not expect these rules to apply to any disposition of our units. A Canadian Holder that is throughout the relevant taxation year a “Canadian—controlled private corporation” (as defined in the Tax Act) may be liable to pay an additional refundable tax on its “aggregate investment income” (as defined in the Tax Act) for the year, which is defined to include taxable capital gains.

Eligibility for Investment

Provided that our units are listed on a “designated stock exchange” (which currently includes the NYSE and the TSX), our units will be “qualified investments” under the Tax Act for a trust governed by an RRSP, deferred profit sharing plan, RRIF, RESP, RDSP, and a TFSA.

Notwithstanding the foregoing, an annuitant under an RRSP or RRIF, a holder of a TFSA or RDSP or a subscriber of an RESP, as the case may be, may be subject to a penalty tax if our units held in the RRSP, RRIF, TFSA, RDSP or RESP are “prohibited investments” for the RRSP, RRIF, TFSA, RDSP or RESP, as the case may be. Generally, our units will not be a “prohibited investment” for a trust governed by an RRSP, RRIF, TFSA, RDSP or RESP, provided that the annuitant under the RRSP or RRIF, the holder of the TFSA or RDSP or subscriber of the RESP, as applicable, deals at arm’s-length with our partnership for purposes of the Tax Act and does not have a “significant interest” in our partnership. Canadian Holders who hold our units in an RRSP, RRIF, TFSA, RDSP or RESP should consult with their own tax advisors regarding the application of the foregoing prohibited investment rules having regard to their particular circumstances.

Alternative Minimum Tax

Canadian Holders that are individuals or trusts may be subject to the alternative minimum tax rules. Such Canadian Holders should consult their own tax advisors.

Holders Not Resident in Canada

The following portion of the summary is generally applicable to a Holder who, for purposes of the Tax Act and at all relevant times, is not, and is not deemed to be, resident in Canada and who does not use or hold and is not deemed to use or hold its units in connection with a business carried on in Canada (a “Non-Canadian Holder”).

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The following portion of the summary assumes that (i) our units are not, and will not at any relevant time constitute, “taxable Canadian property” of any Non-Canadian Holder and (ii) our partnership and the Holding LP will not dispose of property that is “taxable Canadian property”. “Taxable Canadian property” includes, but is not limited to, property that is used or held in a business carried on in Canada and shares of corporations that are not listed on a “designated stock exchange” if more than 50% of the fair market value of the shares is derived from certain Canadian properties in the 60-month period immediately preceding the particular time. In general, our units will not constitute “taxable Canadian property” of any Non-Canadian Holder at the time of disposition or deemed disposition, unless (a) at any time during the 60-month period immediately preceding the particular time, more than 50% of the fair market value of our units was derived, directly or indirectly (excluding through a corporation, partnership or trust, the shares or interests in which were not themselves “taxable Canadian property”), from one or any combination of (i) real or immovable property situated in Canada; (ii) “Canadian resource properties”; (iii) “timber resource properties”; and (iv) options in respect of, or interests in, or for civil law rights in, such property, whether or not such property exists, or (b) our units are otherwise deemed to be “taxable Canadian property”. Since our partnership’s assets will consist principally of units of the Holding LP, our units would generally be “taxable Canadian property” at a particular time if the units of the Holding LP held by our partnership derived, directly or indirectly (excluding through a corporation, partnership or trust, the shares or interests in which were not themselves “taxable Canadian property”) more than 50% of their fair market value from properties described in (i) to (iv) above, at any time in the 60-month period preceding the particular time. Our General Partner does not expect our units to be “taxable Canadian property” at any relevant time and does not expect our partnership or the Holding LP to dispose of “taxable Canadian property”. However, no assurance can be given in this regard. See Item 3.D “Risk Factors—Risks Related to Taxation—Canada”.

The following portion of the summary also assumes that neither our partnership nor the Holding LP will be considered to carry on business in Canada. Our General Partner intends to organize and conduct the affairs of each of these entities, to the extent possible, so that neither of these entities should be considered to carry on business in Canada for purposes of the Tax Act. However, no assurance can be given in this regard. If our partnership or the Holding LP carry on business in Canada, the tax implications to our partnership or the Holding LP and to Non-Canadian Holders may be materially and adversely different than as set out herein.

Special rules, which are not discussed in this summary, may apply to a Non-Canadian Holder that is an insurer carrying on business in Canada and elsewhere.

Taxation of Income or Loss

A Non-Canadian Holder will not be subject to Canadian federal income tax under Part I of the Tax Act on its share of income from a business carried on by our partnership (or the Holding LP) outside Canada or the non-business income earned by our partnership (or the Holding LP) from sources in Canada. However, a Non-Canadian Holder may be subject to Canadian federal withholding tax under Part XIII of the Tax Act, as described below.

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Our partnership and the Holding LP will each be deemed to be a non-resident person in respect of certain amounts paid or credited or deemed to be paid or credited to them by a person resident or deemed to be resident in Canada, including dividends or interest. Dividends or interest (other than interest not subject to Canadian federal withholding tax) paid or deemed to be paid by a person resident or deemed to be resident in Canada to the Holding LP will be subject to withholding tax under Part XIII of the Tax Act at the rate of 25%. However, the CRA’s administrative practice in similar circumstances is to permit the rate of Canadian federal withholding tax applicable to such payments to be computed by looking through the partnership and taking into account the residency of the partners (including partners who are resident in Canada) and any reduced rates of Canadian federal withholding tax that any non-resident partners may be entitled to under an applicable income tax treaty or convention, provided that the residency status and entitlement to the treaty benefits can be established. In determining the rate of Canadian federal withholding tax applicable to amounts paid by the Holding Entities to the Holding LP, our General Partner expects the Holding Entities to look-through the Holding LP and our partnership to the residency of the partners of our partnership (including partners who are resident in Canada) and to take into account any reduced rates of Canadian federal withholding tax that non-resident partners may be entitled to under an applicable income tax treaty or convention in order to determine the appropriate amount of Canadian federal withholding tax to withhold from dividends or interest paid to the Holding LP. However, there can be no assurance that the CRA will apply its administrative practice in this context. Under the Treaty, a Canadian-resident payer is required in certain circumstances to look-through fiscally transparent partnerships such as our partnership and the Holding LP to the residency and Treaty entitlements of their partners and take into account the reduced rates of Canadian federal withholding tax that such partners may be entitled to under the Treaty.

AUSTRALIAN TAX CONSIDERATIONS

Set out below are general Australian income tax implications for Australian tax resident holders of units (Australian Holders).

This is not tax advice an Australian Holder can rely on. The individual circumstances of each Australian Holder will affect the taxation implications of each Australian Holder’s interest in our partnership. Australian Holders should seek appropriate independent professional advice that considers the taxation implications in respect of their own specific circumstances.

The discussion is primarily intended for Australian Holders who hold their interest in our partnership on capital account. Different outcomes will potentially arise for Australian Holders who are investing on revenue account. Those Australian Holders should seek professional taxation advice in relation to their interest in our partnership.

The summary of the Australian income tax implications set out below is based on established judicial and administrative interpretations of the Income Tax Assessment Act 1997 (Cth) (“ITAA 1997”), the Income Tax Assessment Act 1936 (Cth) (“ITAA 1936”) and the Taxation Administration Act 1953 (Cth) (“Administration Act”) as at the date of this annual report.

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Summary

The key Australian income tax implications for Australian Holders of units are set out below:

Our partnership should be classified as a “corporate limited partnership” for Australian income tax purposes as:

• it satisfies the definition of “corporate limited partnership”; and

• it is not either a “venture capital limited partnership”, an “early stage venture capital limited partnership”, an “Australian venture capital fund of funds” or a “venture capital management partnership”; and

• it is not a “foreign hybrid limited partnership”.

On the basis that our partnership is a corporate limited partnership and at least one member’s liability is limited, it should be treated as a company for Australian tax purposes.

Our partnership is a non-resident of Australia for tax purposes and therefore, should not be subject to income tax in Australia except for any income sourced in Australia, or in respect of certain capital gains that relate to “taxable Australian property” as detailed in the ITAA 1997.

Distributions made by our partnership to Australian Holders should be characterized as dividends for Australian income tax purposes and included in Australian Holders’ assessable unfranked dividend income on the basis that a “foreign hybrid election” is not able to be made by Australian resident shareholders to treat the partnership as a partnership for Australian tax purposes.

Australian Holders should not be subject to income tax on an accruals basis under the Controlled Foreign Company rules. This conclusion is dependent on the quantum and nature of the interests held in our partnership.

The disposal of units by Australian Holders should give rise to a capital gains tax (“CGT”) event for the Australian Holders. Broadly, Australian Holders that hold their units on capital account should realize a capital gain (or loss) equal to the difference between any capital proceeds received and the cost base (or reduced cost base) of the units.

Characterization of the Partnership

Definition of “limited partnership”

A limited partnership is defined in section 995-1 of the ITAA 1997 and means:

a. an association of persons (other than a company) carrying on business as partners or in receipt of ordinary income or statutory income jointly, where the liability of at least one of those persons is limited; or

b. an association of persons (other than one referred to in paragraph (a)) with legal personality separate from those persons that was formed solely for the purpose of becoming a “venture capital limited partnership” (“VCLP”), an “early stage venture capital limited partnership” (“ESVCLP”), an “Australian venture capital fund of funds” (“AFOF”) or a “venture capital management partnership” (“VCMP”) and to carry on activities that are carried on by a body of that kind.

There is no requirement as to where or under which law the liability is limited. For tax purposes, the liability is limited if it is effectively limited under the laws applying to the partnership (as per the partnership agreement). Our partnership should be a limited partnership for Australian tax purposes.

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Definition of “corporate limited partnership”

Under subsection 94D(1)(a) of the ITAA 1936, a partnership will be a corporate limited partnership in relation to the year of income of the partnership if the year of income is the 1995-96 year of income or a later year of income. Our partnership should be a corporate limited partnership under subsection 94D(1) of the above definition.

Subsection 94D(2) of the ITAA 1936 specifically excludes from a corporate limited partnership a VCLP, ESVCLP, or AFOF. A requirement for each of these definitions is that the partnership be registered either in Australia or a country prescribed by relevant regulations or be an Australian resident. Our partnership is registered in Bermuda and is not a resident of Australia. Bermuda is not a country prescribed by relevant regulations. Therefore our partnership will not be a VCLP, ESVCLP or AFOF. A VCLP is defined by reference to the Venture Capital Act 2002. Our partnership, as a Bermudian Exempted Limited Partnership, will not be excluded from the definition of a corporate limited partnership as subsection 9-1(1) of the Venture Capital Act requires of a VCLP that:

(a) the partnership was established by or under a law in force in, or in any part of:

I. Australia; or

II. foreign country in respect of which a double tax agreement (as defined in Part X of the ITAA 1936) is in force; and

(b) all of the partners who are general partners are residents of a country referred to in paragraph (a).

Definition of “foreign hybrid limited partnership”

Pursuant to sub-section 94D(5) of the ITAA 1936, an exception to our partnership being a corporate limited partnership applies if it is a “foreign hybrid limited partnership” (“FHLP”), as defined in section 830-10 of the ITAA 1997. A limited partnership will be a FHLP if:

a. it was formed in a foreign country (i.e. other than Australia); and

b. foreign income tax is imposed under the law of the foreign country on the partners, not the limited partnership, in respect of the income or profits of the partnership for the income year; and

c. at no time during the income year is the limited partnership, for the purposes of a law of any foreign country that imposes foreign income tax on entities because they are residents of the foreign country, a resident of that country; and

d. disregarding subsection 94D(5) of the ITAA 1936, at no time during the income year is it an Australian resident; and

e. disregarding that subsection, in relation to the same income year of another taxpayer:

I. the limited partnership is a Controlled Foreign Company at the end of a statutory accounting period that ends in the income year; and

II. at the end of the statutory accounting period, the taxpayer is an attributable taxpayer in relation to the Controlled Foreign Company with an attribution percentage greater than nil.

Paragraph (a) should be met on the basis that our partnership was formed in Bermuda. Paragraph (b) would not be met on the basis that Bermuda does not impose any tax on income, profits, dividends or wealth. Therefore, there is no foreign tax imposed under the laws of Bermuda on the partners of our partnership and this paragraph will not be satisfied. This position is confirmed by the Australia Taxation Office (“ATO”) in ATO ID 2006/149. On the basis that paragraph (b) is not met, our partnership should not be a FHLP.

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Conclusion

Our partnership should be classified as a corporate limited partnership for Australian income tax purposes in accordance with section 94D of the ITAA 1997. The consequences of that include that our partnership is treated as a company for the purposes of applying Australian domestic income tax law (sections 94J and 94K of the ITAA 1936). Accordingly, Australian Holders’ units in our partnership should be treated as shares in a company.

Partnership distributions to Australian Holders

Australian Holders will potentially receive distributions from our partnership. Distributions will be treated as dividends on the basis that our partnership is a corporate limited partnership for Australian tax purposes. The distributions should be treated as unfranked dividends to Australian Holders.

Our partnership will not provide information to enable Australian Holders to determine whether a return of capital has been made for Australian tax purposes. Therefore, Australian Holders should treat all distributions as unfranked dividends.

The taxation treatment of a partnership dividend received by Australian Holders will vary depending on the type of Australian Holder. Australian Holders should seek further independent advice in relation to the nature of future distributions received from our partnership.

Set out below is a summary of how different types of Australian Holders should treat a distribution received from our partnership.

Australian tax resident individuals

Distributions received by Australian tax resident individuals should in most cases be included in their Australian assessable income. Australian Holders should be entitled to an Australian foreign income tax offset which reduces the Australian tax payable on assessable dividends by up to an amount of any foreign income tax withheld by our partnership.

Australian Holders should seek independent advice in relation to their entitlement to Australian foreign income tax offsets to the extent foreign tax is withheld.

Australian tax resident companies

The taxation treatment of a dividend received by an Australian tax resident company is the same as that described above for an Australian tax resident individual.

Australian tax resident trusts

The comments below relate to Australian tax resident beneficiaries who are not under a legal disability where those beneficiaries are presently entitled to income of an Australian resident trust. If the beneficiary is under a legal disability, we recommend those beneficiaries seek independent professional taxation advice.

Distributions in the form of dividend income should either be included in the trustee’s, or the beneficiary’s, assessable income, as the case may be. The tax treatment of the dividend then depends on the tax status of the Australian resident trust and the legal identity of the beneficiary as an individual, a company or a trust (refer to comments above).

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Australian tax resident superannuation funds

Dividends paid to an Australian tax resident superannuation fund should be included in the fund’s Australian assessable income. Superannuation funds should be entitled to an Australian foreign income tax offset against the Australian tax payable on assessable dividends of up to the amount of any foreign income tax withheld by our partnership on the distribution.

Australian Holders should seek further independent advice in relation to their entitlement to Australian foreign income tax offsets to the extent foreign tax is withheld on our partnership distributions.

Documentation for Australian Holders

Australian Holders with income tax years that end on 30 June will not receive any documentation from our partnership that will correlate directly to a 30 June income tax year end. Australian Holders will need to rely on distribution payment statements to support their Australian income tax disclosures.

Australian CGT implications for Australian Holders

Cost base of the Partnership Units

The cost base of the units for Australian Holders who bought their units in our partnership directly should equal the money paid for those units plus any incidental costs of acquisition and disposal of the units (e.g. broker’s fees, borrowing expenses).

Where an Australian Holder received the units as consideration for entering into the Merger Transaction, the cost base or reduced cost base of the units acquired is made up of a number of elements including the money paid or market value of property given to acquire the units. That amount should be the market value of the Prime Infrastructure securities exchanged for the units under the Merger Transaction plus the incidental costs of acquisition and disposal of the Prime Infrastructure securities (if any).

On the basis that our partnership and the Prime Infrastructure security holders were acting at arm’s length, the market value of the Prime Infrastructure securities disposed of under the Merger Transaction should be the same as the market value of the units received in exchange.

The acquisition date for the units for CGT purposes should be the date the units were allotted to the Prime Infrastructure security holders (8 December 2010 Australian Eastern Standard Time).

The market value of the units may be determined by reference to the NYSE/TSX VWAP of these units on 8 December 2010 (A$20.651 per unit).

Disposal of units

In the event Australian Holders dispose of units, a capital gain should arise where the sale proceeds received exceed an Australian Holders’ cost base in the units. A capital loss should arise where the Australian Holders’ reduced cost base exceeds the sale proceeds. The time that the CGT event occurs is when the contract is entered into or, if there is no contract, when the change of ownership occurs.

Partnership distributions should be treated as unfranked dividends and no CGT cost base reduction should be calculated as a result of the distributions.

Where the proceeds received are in foreign currency (e.g. US$ or C$), these should be converted into A$ at the daily average exchange rate for the day of the sale (the date the sale contract is entered into). The ATO publish daily average exchange rates on their website (www.ato.gov.au). This may be a different amount than the A$ cash an Australian Holder ultimately receives.

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Accordingly, there may a foreign exchange gain or loss if there are any fluctuations in the exchange rate between the date of the sale contract and the date payment is received by the Australian Holders. To the extent payment is received within 12 months of the date of disposal (the date the sale contract is entered into) of the units any such foreign exchange realization gains or losses will be capital in nature and subject to the CGT provisions (i.e. included in the overall gain or loss on the disposal of the units).

If payment is received more than 12 months after the contract date, the foreign exchange gain or loss provisions of the ITAA 1997 apply. Australian Holders should seek specific advice in this circumstance.

Discount of capital gain

Provided the units that gave rise to the capital gain were held for at least 12 months prior to the occurrence of the CGT event (excluding the date of acquisition), any net capital gain realized by an Australian Holder on those units (e.g. if a sale were to occur) may qualify for discount capital gains tax treatment.

The discount is taken into account after applying any available capital losses against the capital gain eligible for the discount.

This treatment broadly only applies in respect of units held by Australian Holders that are individuals, trustees of trusts, and trustees of superannuation funds. No such discount is available for corporate Australian Holders.

Where the CGT discount is available, individual Australian Holders (either holding their units directly or indirectly through a trust) may reduce their net capital gain by 50%. For trustees (responsible entities) of superannuation funds, the net capital gain may be reduced by 33^1/3%.

BERMUDA TAX CONSIDERATIONS

In Bermuda there are no taxes on profits, income or dividends, nor is there any capital gains tax, estate duty or death duty. Profits can be accumulated and it is not obligatory to pay dividends. As “exempted undertakings”, exempted partnerships and overseas partnerships are entitled to apply for (and will ordinarily receive) an assurance pursuant to the Exempted Undertakings Tax Protection Act 1966 that, in the event that legislation introducing taxes computed on profits or income, or computed on any capital asset, gain or appreciation, is enacted, such taxes shall not be applicable to the partnership or any of its operations until March 31, 2035. Such an assurance may include the assurance that any tax in the nature of estate duty or inheritance tax shall not be applicable to the units, debentures or other obligations of the partnership.

Exempted partnerships and overseas partnerships fall within the definition of “international businesses” for the purposes of the Stamp Duties (International Businesses Relief) Act 1990, which means that instruments executed by or in relation to an exempted partnership or an overseas partnership are exempt from stamp duties (such duties were formerly applicable under the Stamp Duties Act 1976). Thus, stamp duties are not payable upon, for example, an instrument which effects the transfer or assignment of a unit in an exempted partnership or an overseas partnership, or the sale or mortgage of partnership assets; nor are they payable upon the partnership capital.

10.F    DIVIDENDS AND PAYING AGENTS

Not applicable.

10.G    STATEMENT BY EXPERTS

Not applicable.

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10.H    DOCUMENTS ON DISPLAY

Our partnership is subject to the information filing requirements of the Exchange Act, and accordingly we are required to file periodic reports and other information with the SEC. As a foreign private issuer under the SEC’s regulations, we file annual reports on Form 20-F and other reports on Form 6-K. The information disclosed in our reports may be less extensive than that required to be disclosed in annual and quarterly reports on Forms 10-K and 10-Q required to be filed with the SEC by U.S. issuers.

Moreover, as a foreign private issuer, we are not subject to the proxy requirements under Section 14 of the Exchange Act, and our directors and principal shareholders are not subject to the insider short swing profit reporting and recovery rules under Section 16 of the Exchange Act. Our SEC filings are available at the SEC’s website at www.sec.gov. You may also read and copy any document we file with the SEC at the public reference facilities maintained by the SEC at SEC Headquarters, Public Reference Section, 100 F Street, N.E., Washington D.C. 20549. You may obtain information on the operation of the SEC’s public reference facilities by calling the SEC at 1-800-SEC-0330.

In addition, our partnership is required to file documents required by Canadian securities laws electronically with Canadian securities regulatory authorities and these filings are available on our SEDAR profile at www.sedar.com. Written requests for such documents should be directed to our Corporate Secretary at 73 Front Street, Hamilton HM 12, Bermuda.

10.I    SUBSIDIARY INFORMATION

Not applicable.

ITEM 11.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT NON-PRODUCT RELATED MARKET RISK

See the information contained in this annual report on Form 20-F under Item 5.B “Liquidity and Capital Resources—Other Market Risks”, Item 5.B “Liquidity and Capital Resources—Foreign Currency Hedging Strategy” and Item 18 “Financial Statements” (Note 6, “Fair Value of Financial Instruments”, Note 33, “Derivative Financial Instruments” and Note 34, “Financial Risk Management”).

ITEM 12.    DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES

Not applicable.

240 Brookfield Infrastructure

PART II

ITEM 13.    DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES

None.

ITEM 14.    MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS

Not applicable.

ITEM 15.    CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

As of December 31, 2017, an evaluation of the effectiveness of our “disclosure controls and procedures” (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) was carried out under the supervision and with the participation of persons performing the functions of principal executive and principal financial officers for us and the Service Provider. Based upon that evaluation, the persons performing the functions of principal executive and principal financial officers for us have concluded that, as of December 31, 2017, our disclosure controls and procedures were effective: (i) to ensure that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms; and (ii) to ensure that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is accumulated and communicated to our management, including the persons performing the functions of principal executive and principal financial officers for us, to allow timely decisions regarding required disclosure.

It should be noted that while our management, including persons performing the functions of principal executive and principal financial officers for us, believe our disclosure controls and procedures provide a reasonable level of assurance that such controls and procedures are effective, they do not expect that our disclosure controls and procedures or internal controls will prevent all error and all fraud. A control system, no matter how well conceived or operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met.

Management’s Annual Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Rule 13a-15(f) under the Exchange Act. Under the supervision and with the participation of our management, including persons performing the functions of principal executive and principal financial officers for us, we conducted an evaluation of the effectiveness of our internal control over financial reporting as of December 31, 2017, based on the criteria set forth in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on evaluation under Internal Control—Integrated Framework, our management concluded that our internal control over financial reporting was effective as of December 31, 2017. Excluded from our evaluation were internal controls over financial reporting at Nova Transportadora do Sudeste S.A., for which control was acquired on April 4, 2017. The financial statements of this entity constitutes 21% of total assets, 31% of partnership capital, 27% of revenues and 86% of net income of the consolidated financial statements of our partnership as of and for the year ending December 31, 2017.

Brookfield Infrastructure 241

Internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Report of Independent Registered Public Accounting Firm

The effectiveness of our internal control over financial reporting as of December 31, 2017 has been audited by Deloitte LLP, Independent Registered Public Accounting Firm, who have also audited the financial statements of our partnership, as stated in their reports which are included herein.

Changes in Internal Control

There was no change in our internal control over financial reporting during the year ended December 31, 2017, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

ITEM 16A.    AUDIT COMMITTEE FINANCIAL EXPERT

Our General Partner’s board of directors has determined that Danesh Varma possesses specific accounting and financial management expertise, that he is the audit committee financial expert as defined by the U.S. Securities and Exchange Commission and that he is independent within the meaning of the rules of the NYSE. The board of directors of our General Partner has also determined that other members of the audit committee have sufficient experience and ability in finance and compliance matters to enable them to adequately discharge their responsibilities.

ITEM 16B.    CODE OF ETHICS

On December 4, 2007, our General Partner adopted a Code of Conduct and Ethics (“Code”) that applies to the members of the board of directors of our General Partner, our partnership and any officers or employees of our General Partner. The Code is periodically updated and we have posted a copy of the current Code on our website at https://bip.brookfield.com/corporate-governance/governance-documents.

ITEM 16C.    PRINCIPAL ACCOUNTANT FEES AND SERVICES

Our General Partner has retained Deloitte LLP to act as our partnership’s Independent Registered Public Accounting Firm.

242 Brookfield Infrastructure

The table below summarizes the fees for professional services rendered by Deloitte LLP:

	For the year ended December 31,
	2017				2016
FEES	USD (‘000)		%		USD (‘000)		%
Audit fees(1)	$	7,438	93	%	$	5,335	93	%
Audit-related fees(2)	442		6	%	354		6	%
All other fees(3)	13		1	%	75		1	%
Total	$	7,893	100	%	$	5,764	100	%

(1) Audit fees relate to annual fees for the audits and interim reviews of our partnership and the Holding LP, including its subsidiaries, associates, and joint ventures.

(2) Audit-related fees relate primarily to services pertaining to the filing of our partnership’s short form base shelf prospectuses and other securities-related matters.

(3) Other relates to certain permissible operational and pre-acquisition consulting and advisory services, and includes a nominal amount associated with income tax related activities performed for subsidiaries of our partnership.

The audit committee of our General Partner pre-approves all audit and audit-related services provided to our partnership and the Holding LP by Deloitte LLP.

ITEM 16D.    EXEMPTIONS FROM THE LISTING STANDARDS FOR AUDIT COMMITTEE

None.

ITEM 16E.    PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASER

Our partnership may from time-to-time, subject to applicable law, purchase our units or preferred units for cancellation in the open market, provided that any necessary approval has been obtained. Brookfield has also advised our partnership that it may from time-to-time, subject to applicable law, purchase our units in the market without making an offer to all unitholders.

In November 2017, we announced that the TSX accepted a notice filed by our partnership of its intention to renew its normal course issuer bid to repurchase units and Class A Preferred Units (aside from Series 9 Preferred Units). A copy of the notice may be obtained free of charge by contacting our partnership. We believe that at times our units and Class A Preferred Units may trade in a price range that does not fully reflect their value. As a result, from time to time, acquiring our units and Class A Preferred Units for cancellation represents an attractive use of available funds. Under the normal course issuer bid, the board of directors of our General Partner authorized our partnership to repurchase up to 13,823,709 of our units, representing approximately 5% of our issued and outstanding units. Under the normal course issuer bid, our partnership may purchase up to 87,189 units on the TSX during any trading day.

The board of directors of our General Partner also authorized our partnership to repurchase up to 500,000 Series 1 Preferred Units, 500,000 Series 3 Preferred Units, 1,000,000 Series 5 Preferred Units, and 1,200,000 series 7 Preferred Units, representing approximately 10% of the public float of the each series of Class A Preferred Units. Under the normal course issuer bid, our partnership may purchase up to 1,387 Series 1 Preferred Units, 1,000 Series 3 Preferred Units and 1,575 Series 5 Preferred Units and 3,519 Series 7 Preferred Units on the TSX during any trading day. The price to be paid for our Class A Preferred Units under the normal course issuer bid will be the market price of the relevant series of Class A Preferred Units at the time of purchase. The actual number of any particular series of Class A Preferred Units to be purchased and the timing of such purchases will be determined by our partnership, and all purchases will be made through the facilities of the TSX.

Brookfield Infrastructure 243

Repurchases of units and Class A Preferred Units (aside from Series 9 Preferred Units) were authorized to commence on November 10, 2017 and will terminate on November 9, 2018 or earlier should our partnership complete its repurchases prior to such date. The price to be paid for our units and Class A Preferred Units under the normal course issuer bid will be the market price at the time of purchase. The actual number of units and Class A Preferred Units to be purchased and the timing of such purchases will be determined by our partnership, and all purchases will be made through the facilities of the TSX or the NYSE. Repurchases may occur subject to prevailing market conditions and will be funded from available cash. Repurchases will also be subject to compliance with applicable U.S. federal securities laws, including Rule 10b 18 under the Exchange Act, as well as applicable Canadian securities laws. All of our units and Class A Preferred Units acquired by our partnership under the normal course issuer bid will be cancelled.

In the year ended December 31, 2017, we did not repurchase any units or Class A Preferred Units under our normal course issuer bid.

ITEM 16F.   CHANGE IN REGISTRANT’S CERTIFYING ACCOUNTANT

Not applicable.

ITEM 16G.    CORPORATE GOVERNANCE

Our corporate governance practices are not materially different from those required of domestic limited partnerships under the NYSE listing standards.

ITEM 16H.    MINE SAFETY DISCLOSURES

Not applicable.

244 Brookfield Infrastructure

PART III

ITEM 17.    FINANCIAL STATEMENTS

Not applicable.

ITEM 18.    FINANCIAL STATEMENTS

See the financial statements and notes thereto beginning on page F-1 which are filed as part of this annual report on Form 20-F.

ITEM 19.    EXHIBITS

Number	Description
1.1	Certificate of registration of Brookfield Infrastructure Partners L.P., registered as of May 29, 2007-incorporated by reference to Exhibit 1.1 to our partnership’s Registration Statement on Form 20‑F filed July 31, 2007. (With regard to applicable cross‑references in this report, our partnership’s registration statement was filed with the SEC under File No. 1‑33632).
1.2	Amended and Restated Limited Partnership Agreement of Brookfield Infrastructure Partners L.P., dated February 16, 2018-incorporated by reference to Exhibit 99.1 to our partnership’s Form 6‑K filed February 16, 2018.
4.1	Amended and Restated Limited Partnership Agreement of Brookfield Infrastructure L.P., dated February 16, 2018-incorporated by reference to Exhibit 99.2 to our partnership’s Form 6‑K filed February 16, 2018.
4.2	Amended and Restated Master Services Agreement, dated March 13, 2015, by and among Brookfield Asset Management Inc., Brookfield Infrastructure Partners L.P., Brookfield Infrastructure L.P., and others-incorporated by reference to Exhibit 4.3 to our partnership’s Annual Report on Form 20‑F filed March 18, 2015.
4.3	Amended and Restated Relationship Agreement, dated March 28, 2014, by and among Brookfield Asset Management Inc., Brookfield Infrastructure Partners L.P., Brookfield Infrastructure L.P., and others-incorporated by reference to Exhibit 4.3 to our partnership’s Annual Report on Form 20‑F filed March 28, 2014.
4.4	Registration Rights Agreement, dated December 4, 2007, between Brookfield Infrastructure Partners L.P. and Brookfield Asset Management Inc.-incorporated by reference to Exhibit 4.4 to our partnership’s Registration Statement on Form 20‑F/A filed December 13, 2007.
4.5	Indenture dated October 10, 2012 between Brookfield Infrastructure Finance ULC, Brookfield Infrastructure Finance LLC, Brookfield Infrastructure Finance Limited, Brookfield Infrastructure Finance Pty Ltd and Computershare Trust Company of Canada, as supplemented from time to time-incorporated by reference to Exhibit 4.6 to our partnership’s Annual Report on Form 20‑F filed March 18, 2015.
4.6	Second Supplemental Indenture dated March 11, 2015 between Brookfield Infrastructure Finance ULC, Brookfield Infrastructure Finance LLC, Brookfield Infrastructure Finance Limited, Brookfield Infrastructure Finance Pty Ltd and Computershare Trust Company of Canada-incorporated by reference to Exhibit 4.10 to our partnership’s Annual Report on Form 20‑F filed March 18, 2015.
4.7	Guarantee dated March 11, 2015 by Brookfield Infrastructure Partners L.P., Brookfield Infrastructure L.P., BIP Bermuda Holdings I Limited, Brookfield Infrastructure Holdings (Canada) Inc. and Brookfield Infrastructure US Holdings I Corporation in favour of Computershare Trust Company of Canada-incorporated by reference to Exhibit 4.11 to our partnership’s Annual Report on Form 20‑F filed March 18, 2015.

Brookfield Infrastructure 245

Number	Description
4.8	Third Supplemental Indenture dated October 30, 2015 between Brookfield Infrastructure Finance ULC, Brookfield Infrastructure Finance LLC, Brookfield Infrastructure Finance Limited, Brookfield Infrastructure Finance Pty Ltd and Computershare Trust Company of Canada-incorporated by reference to Exhibit 99.1 to our partnership’s Form 6‑K filed October 30, 2015.
4.9	Guarantee dated October 30, 2015 by Brookfield Infrastructure Partners L.P., Brookfield Infrastructure L.P., BIP Bermuda Holdings I Limited, Brookfield Infrastructure Holdings (Canada) Inc. and Brookfield Infrastructure US Holdings I Corporation in favour of Computershare Trust Company of Canada-incorporated by reference to Exhibit 99.2 to our partnership’s Form 6‑K filed October 30, 2015.
4.10	Fourth Supplemental Indenture dated October 30, 2015 between Brookfield Infrastructure Finance ULC, Brookfield Infrastructure Finance LLC, Brookfield Infrastructure Finance Limited, Brookfield Infrastructure Finance Pty Ltd and Computershare Trust Company of Canada-incorporated by reference to Exhibit 99.3 to our partnership’s Form 6‑K filed October 30, 2015.
4.11	Guarantee dated October 30, 2015 by Brookfield Infrastructure Partners L.P., Brookfield Infrastructure L.P., BIP Bermuda Holdings I Limited, Brookfield Infrastructure Holdings (Canada) Inc. and Brookfield Infrastructure US Holdings I Corporation in favour of Computershare Trust Company of Canada-incorporated by reference to Exhibit 99.4 to our partnership’s Form 6‑K filed October 30, 2015.
4.12	Fifth Supplemental Indenture dated February 22, 2017 between Brookfield Infrastructure Finance ULC, Brookfield Infrastructure Finance LLC, Brookfield Infrastructure Finance Limited, Brookfield Infrastructure Finance Pty Ltd and Computershare Trust Company of Canada-incorporated by reference to Exhibit 99.1 to our partnership’s Form 6‑K filed February 22, 2017.
4.13	Guarantee dated February 22, 2017 by Brookfield Infrastructure Partners L.P., Brookfield Infrastructure L.P., BIP Bermuda Holdings I Limited, Brookfield Infrastructure Holdings (Canada) Inc. and Brookfield Infrastructure US Holdings I Corporation in favour of Computershare Trust Company of Canada-incorporated by reference to Exhibit 99.2 to our partnership’s Form 6‑K filed February 22, 2017.
8.1	Subsidiaries of Brookfield Infrastructure Partners L.P. (Incorporated by reference to Item 4.C, “Organizational Structure”).
12.1	Certification of Samuel Pollock, Chief Executive Officer, Brookfield Infrastructure Group L.P., pursuant to Section 302 of the Sarbanes‑Oxley Act of 2002.*
12.2	Certification of Bahir Manios, Chief Financial Officer, Brookfield Infrastructure Group L.P., pursuant to Section 302 of the Sarbanes‑Oxley Act of 2002.*
13.1	Certification of Samuel Pollock, Chief Executive Officer, Brookfield Infrastructure Group L.P., pursuant to 18 U.S.C. Section 1350, as adopted to Section 906 of the Sarbanes‑Oxley Act of 2002.*
13.2	Certification of Bahir Manios, Chief Financial Officer, Brookfield Infrastructure Group L.P., pursuant to 18 U.S.C. Section 1350, as adopted to Section 906 of the Sarbanes‑Oxley Act of 2002.*
15.1	Consent of Deloitte LLP, Independent Registered Public Accounting Firm, relating to the incorporation of the consolidated financial statements of Brookfield Infrastructure Partners L.P. into this Annual Report on Form 20‑F.*

* Filed electronically herewith.

The registrant hereby agrees to furnish to the SEC at its request copies of long-term debt instruments defining the rights of holders of outstanding long-term debt that are not required to be filed herewith.

246 Brookfield Infrastructure

SIGNATURE

The registrant hereby certifies that it meets all of the requirements for filing an annual report on Form 20-F and that it has duly caused and authorized the undersigned to sign this annual report on its behalf.

Dated: March 13, 2018	BROOKFIELD INFRASTRUCTURE PARTNERS L.P. by its general partner, Brookfield Infrastructure Partners Limited
	By:	/s/ WILLIAM COX
		Name:	William Cox
		Title:	Director

Brookfield Infrastructure 247

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

INDEX TO FINANCIAL STATEMENTS

	Page
Audited Financial Statements of Brookfield Infrastructure Partners L.P. as of December 31, 2017
and 2016 and for the years ended December 31, 2017, 2016 and 2015	F-5

F-1 Brookfield Infrastructure

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Partners of

Brookfield Infrastructure Partners L.P.

Opinion on the Financial Statements

We have audited the accompanying consolidated statements of financial position of Brookfield Infrastructure Partners L.P. and subsidiaries (the “Partnership”) as of December 31, 2017 and 2016, the related consolidated statements of operating results, comprehensive income, partnership capital, and cash flows, for each of the three years in the period ended December 31, 2017, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Partnership as of December 31, 2017 and 2016, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017, in conformity with International Financial Reporting Standards as issued by the International Accounting Standards Board.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Partnership’s internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated March 13, 2018 expressed an unqualified opinion on the Partnership’s internal control over financial reporting.

Basis for Opinion

These financial statements are the responsibility of the Partnership’s management. Our responsibility is to express an opinion on the Partnership’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Partnership in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. Further, we are required to be independent of the Partnership in accordance with the ethical requirements that are relevant to our audit of the financial statements in Canada and to fulfill our other ethical responsibilities in accordance with these requirements.

We conducted our audits in accordance with the standards of the PCAOB and Canadian generally accepted auditing standards. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

/s/ Deloitte LLP

Chartered Professional Accountants

Licensed Public Accountants

Toronto, Canada

March 13, 2018

We have served as the Partnership’s auditor since 2007.

Brookfield Infrastructure F-2

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Partners of

Brookfield Infrastructure Partners L.P.

Opinion on Internal Control over Financial Reporting

We have audited the internal control over financial reporting of Brookfield Infrastructure Partners L.P. and subsidiaries (the “Partnership”) as of December 31, 2017, based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the Partnership maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017,based on criteria established in Internal Control—Integrated Framework (2013) issued by COSO.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB) and Canadian generally accepted auditing standards, the consolidated financial statements as of and for the year ended December 31, 2017 of the Partnership and our report datedMarch 13, 2018, expressed an unqualified opinion on those financial statements.

As described in Management’s Annual Report on Internal Control over Financial Reporting, management excluded from its assessment the internal control over financial reporting at Nova Transportadora do Sudeste S.A., which was acquired on April 4, 2017 and whose financial statements constitute 21% of total assets, 31% of partnership capital, 27% of revenues, and 86% of net income of the consolidated financial statement amounts as of and for the year ended December 31, 2017. Accordingly, our audit did not include the internal control over financial reporting at Nova Transportadora do Sudeste S.A.

Basis for Opinion

The Partnership’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Partnership’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Partnership in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

F-3 Brookfield Infrastructure

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ Deloitte LLP

Chartered Professional Accountants

Licensed Public Accountants

Toronto, Canada

March 13, 2018

Brookfield Infrastructure F-4

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

CONSOLIDATED STATEMENTS OF FINANCIAL POSITION

US$ MILLIONS		Notes	As of December 31, 2017		As of December 31, 2016
Assets
Cash and cash equivalents		7	$	374	$	786
Financial assets		8	192		241
Accounts receivable and other		9	838		504
Inventory		10	108		101
Current assets			1,512		1,632
Property, plant and equipment		12	9,937		8,656
Intangible assets		13	9,894		4,465
Investments in associates and joint ventures		11	5,572		4,727
Investment properties		15	192		154
Goodwill		14	1,301		502
Financial assets		8	730		900
Other assets		9	273		165
Deferred income tax asset		25	66		74
Total assets			$	29,477	$	21,275
Liabilities and Partnership Capital
Liabilities
Accounts payable and other		16	864		712
Corporate borrowings	18, 19		99		295
Non-recourse borrowings		18	364		279
Financial liabilities		17	237		229
Current liabilities			1,564		1,515
Corporate borrowings	18, 19		2,002		707
Non-recourse borrowings		18	7,699		7,045
Financial liabilities		17	1,076		152
Other liabilities		16	793		580
Deferred income tax liability		25	2,849		1,612
Preferred shares		20	20		20
Total liabilities			16,003		11,631
Partnership capital
Limited partners			4,967		4,611
General partner			25		27
Non-controlling interest attributable to:
Redeemable Partnership Units held by Brookfield			2,012		1,860
Interest of others in operating subsidiaries			5,875		2,771
Preferred unitholders			595		375
Total partnership capital			13,474		9,644
Total liabilities and partnership capital			$	29,477	$	21,275

F-5 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

CONSOLIDATED STATEMENTS OF OPERATING RESULTS

			For the year ended December 31,
US$ MILLIONS (except per unit information)		Notes	2017			2016			2015
Revenues		21	$	3,535		$	2,115		$	1,855
Direct operating costs			(1,509		)	(1,063		)	(798		)
General and administrative expenses			(239		)	(166		)	(134		)
Depreciation and amortization expense	12, 13		(671		)	(447		)	(375		)
			1,116			439			548
Interest expense		22	(428		)	(392		)	(367		)
Share of earnings from investments in associates and joint ventures		11	118			248			69
Mark-to-market on hedging items		6	(66		)	74			83
Other income		6	7			174			54
Income before income tax			747			543			387
Income tax (expense) recovery
Current		25	(106		)	(33		)	(22		)
Deferred		25	(67		)	18			26
Net income			$	574		$	528		$	391
Attributable to:
Limited partners			$	11		$	285		$	169
General partner			113			84			66
Non-controlling interest attributable to:
Redeemable Partnership Units held by Brookfield			1			118			66
Interest of others in operating subsidiaries			449			41			90
Basic and diluted (loss) earnings per unit attributable to:
Limited partners		26	$	(0.04	)	$	1.13		$	0.69

Brookfield Infrastructure F-6

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

		For the year ended December 31,
US$ MILLIONS	Notes	2017			2016			2015
Net income		$	574		$	528		$	391
Other comprehensive income:
Items that will not be reclassified subsequently to profit or loss:
Revaluation of property, plant and equipment	12	418			335			646
Unrealized actuarial gains (losses)		8			(49		)	26
Taxes on the above items	25	(206		)	(83		)	(131		)
Equity accounted investments	11	259			199			173
		479			402			714
Items that may be reclassified subsequently to profit or loss:
Foreign currency translation		38			(37		)	(928		)
Cash flow hedge	6	137			(1		)	(41		)
Net investment hedge	6	(266		)	169			89
Available-for-sale securities	6	5			9			(33		)
Taxes on the above items	25	6			8			(10		)
Equity accounted investments	11	(76		)	26			7
		(156		)	174			(916		)
Total other comprehensive income (loss)		323			576			(202		)
Comprehensive income		$	897		$	1,104		$	189
Attributable to:
Limited partners	27	$	139		$	643		$	83
General partner	27	112			88			65
Non-controlling interest attributable to:
Redeemable Partnership Units held by Brookfield	27	57			265			34
Interest of others in operating subsidiaries		589			108			7

F-7 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

CONSOLIDATED STATEMENTS OF PARTNERSHIP CAPITAL

	Limited Partners												General Partner											Non-Controlling Interest—Redeemable Partnership Units held by Brookfield
US$ MILLIONS	Limited partners’ capital		(Deficit) Retained earnings			Ownership Changes		Accumulated other comprehensive income(1)		Limited partners			General partner capital		Retained earnings			Accumulated other comprehensive income(1)			General partner			Redeemable units held by Brookfield		(Deficit) Retained earnings			Ownership Changes			Accumulated other comprehensive income(1)		Non-Controlling Interest— Redeemable Partnership Units held by Brookfield			Non-controlling interest— in operating subsidiaries			Preferred Unitholders Capital		Total partners’ capital
Balance as at January 1, 2017	$	4,215	$	(483	)	$	143	$	736	$	4,611		$	19	$	1		$	7		$	27		$	1,778	$	(215	)	$	(34	)	$	331	$	1,860		$	2,771		$	375	$	9,644
Net income	—		11			—		—		11			—		113			—			113			—		1			—			—		1			449			—		574
Other comprehensive income (loss)	—		—			—		128		128			—		—			(1		)	(1		)	—		—			—			56		56			140			—		323
Comprehensive income (loss)	—		11			—		128		139			—		113			(1		)	112			—		1			—			56		57			589			—		897
Unit issuance (note 26)	692		—			—		—		692			—		—			—			—			300		—			—			—		300			—			—		992
Partnership distributions (note 28)	—		(459		)	—		—		(459		)	—		(114		)	—			(114		)	—		(191		)	—			—		(191		)	—			—		(764		)
Partnership preferred distributions (note 28)	—		(22		)	—		—		(22		)	—		—			—			—			—		(8		)	—			—		(8		)	—			—		(30		)
Acquisition of subsidiaries (note 5)	—		—			—		—		—			—		—			—			—			—		—			—			—		—			3,523			—		3,523
Subsidiary distributions to non-controlling interest	—		—			—		—		—			—		—			—			—			—		—			—			—		—			(831		)	—		(831		)
Disposition of interests (note 11)	—		—			—		—		—			—		—			—			—			—		—			—			—		—			(177		)	—		(177		)
Preferred unit issuance (note 26)	—		—			—		—		—			—		—			—			—			—		—			—			—		—			—			220		220
Other items (note 26)	—		—			6		—		6			—		—			—			—			—		—			(6		)	—		(6		)	—			—		—
Balance as at December 31, 2017	$	4,907	$	(953	)	$	149	$	864	$	4,967		$	19	$	—		$	6		$	25		$	2,078	$	(413	)	$	(40	)	$	387	$	2,012		$	5,875		$	595	$	13,474

(1) Refer to Note 27, Accumulated Other Comprehensive Income (Loss) for an analysis of accumulated other comprehensive income (loss) by item.

Brookfield Infrastructure F-8

	Limited Partners														General Partner											Non-Controlling Interest—Redeemable Partnership Units held by Brookfield
US$ MILLIONS	Limited partners’ capital			(Deficit) Retained earnings			Ownership Changes		Accumulated other comprehensive income(1)			Limited partners			General partner capital		Retained earnings			Accumulated other comprehensive income(1)			General partner			Redeemable units held by Brookfield		(Deficit) Retained earnings			Ownership Changes			Accumulated other comprehensive income(1)			Non-Controlling Interest—Redeemable Partnership Units held by Brookfield			Non-controlling interest—in operating subsidiaries			Preferred Unitholders Capital		Total partners’ capital
Balance as at January 1, 2016	$	3,716		$	(559	)	$	126	$	555		$	3,838		$	19	$	—		$	4		$	23		$	1,528	$	(245	)	$	(19	)	$	254		$	1,518		$	1,608		$	189	$	7,176
Net income(2)	—			285			—		—			285			—		84			—			84			—		118			—			—			118			41			—		528
Other comprehensive income	—			—			—		358			358			—		—			4			4			—		—			—			147			147			67			—		576
Comprehensive income	—			285			—		358			643			—		84			4			88			—		118			—			147			265			108			—		1,104
Unit issuance (note 26)	505			—			—		—			505			—		—			—			—			250		—			—			—			250			—			—		755
Unit repurchases (note 26)	(6		)	—			—		—			(6		)	—		—			—			—			—		—			—			—			—			—			—		(6		)
Partnership distributions (note 28)	—			(377		)	—		—			(377		)	—		(84		)	—			(84		)	—		(154		)	—			—			(154		)	—			—		(615		)
Partnership preferred distributions (note 28)(2)	—			(9		)	—		—			(9		)	—		—			—			—			—		(4		)	—			—			(4		)	—			—		(13		)
Acquisition of subsidiaries (note 5)	—			—			—		—			—			—		—			—			—			—		—			—			—			—			1,241			—		1,241
Subsidiary distributions to non-controlling interest	—			—			—		—			—			—		—			—			—			—		—			—			—			—			(169		)	—		(169		)
Disposition of interests	—			—			—		—			—			—		—			—			—			—		—			—			—			—			(24		)	—		(24		)
Preferred unit issuance (note 26)	—			—			—		—			—			—		—			—			—			—		—			—			—			—			—			186		186
Other items (note 26)	—			177			17		(177		)	17			—		1			(1		)	—			—		70			(15		)	(70		)	(15		)	7			—		9
Balance as at December 31, 2016	$	4,215		$	(483	)	$	143	$	736		$	4,611		$	19	$	1		$	7		$	27		$	1,778	$	(215	)	$	(34	)	$	331		$	1,860		$	2,771		$	375	$	9,644

(1) Refer to Note 27, Accumulated Other Comprehensive Income (Loss) for an analysis of accumulated other comprehensive income (loss) by item.

(2) Certain net income allocations have been reclassified to provide comparability with the current year consolidated statements of partnership capital.

F-9 Brookfield Infrastructure

	Limited Partners														General Partner											Non-Controlling Interest— Redeemable Partnership Units held by Brookfield
US$ MILLIONS	Limited partners’ capital			(Deficit) Retained earnings			Ownership Changes		Accumulated other comprehensive income(1)			Limited partners			General partner capital		Retained earnings			Accumulated other comprehensive income(1)			General partner			Redeemable units held by Brookfield		(Deficit) Retained earnings			Ownership Changes			Accumulated other comprehensive income(1)			Non-Controlling Interest—Redeemable Partnership Units held by Brookfield			Non-controlling interest—in operating subsidiaries			Preferred Unitholders Capital		Total partners’ capital
Balance as at January 1, 2015	$	3,201		$	(400	)	$	77	$	655		$	3,533		$	19	$	—		$	5		$	24		$	1,178	$	(170	)	$	30		$	283		$	1,321		$	1,444		$	—	$	6,322
Net income(2)	—			169			—		—			169			—		66			—			66			—		66			—			—			66			90			—		391
Other comprehensive loss	—			—			—		(86		)	(86		)	—		—			(1		)	(1		)	—		—			—			(32		)	(32		)	(83		)	—		(202		)
Comprehensive income (loss)	—			169			—		(86		)	83			—		66			(1		)	65			—		66			—			(32		)	34			7			—		189
Unit issuance (note 26)	582			—			—		—			582			—		—			—			—			350		—			—			—			350			—			—		932
Unit repurchases (note 26)	(67		)	—			—		—			(67		)	—		—			—			—			—		—			—			—			—			—			—		(67		)
Partnership distributions (note 28)	—			(339		)	—		—			(339		)	—		(66		)	—			(66		)	—		(138		)	—			—			(138		)	—			—		(543		)
Partnership preferred distributions (note 28)(2)	—			(3		)	—		—			(3		)	—		—			—			—			—		—			—			—			—			—			—		(3		)
Acquisition of subsidiaries (note 5)	—			—			—		—			—			—		—			—			—			—		—			—			—			—			347			—		347
Decrease From Subsidiary Distributions To Non-controlling Interest	—			—			—		—			—			—		—			—			—			—		—			—			—			—			(91		)	—		(91		)
Disposition of interests	—			8			—		(8		)	—			—		—			—			—			—		3			—			(3		)	—			(99		)	—		(99		)
Preferred unit issuance (note 26)	—			—			—		—			—			—		—			—			—			—		—			—			—			—			—			189		189
Other items (note 26)	—			6			49		(6		)	49			—		—			—			—			—		(6		)	(49		)	6			(49		)	—			—		—
Balance as at December 31, 2015	$	3,716		$	(559	)	$	126	$	555		$	3,838		$	19	$	—		$	4		$	23		$	1,528	$	(245	)	$	(19	)	$	254		$	1,518		$	1,608		$	189	$	7,176

(1) Refer to Note 27, Accumulated Other Comprehensive Income (Loss) for an analysis of accumulated other comprehensive income (loss) by item.

(2) Certain net income allocations have been reclassified to provide comparability with the current year consolidated statements of partnership capital.

Brookfield Infrastructure F-10

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

CONSOLIDATED STATEMENTS OF CASH FLOWS

			For the year ended December 31,
US$ MILLIONS		Notes	2017			2016			2015
Operating Activities
Net income			$	574		$	528		$	391
Adjusted for the following items:
Earnings from investments in associates and joint ventures, net      of distributions received		11	(52		)	(202		)	18
Depreciation and amortization expense	12, 13		671			447			375
Mark-to-market on hedging items, provisions and other		6	90			(47		)	(44		)
Deferred income tax expense (recovery)		25	67			(18		)	(26		)
Changes in non-cash working capital, net		36	131			45			(82		)
Cash from operating activities			1,481			753			632
Investing Activities
Acquisition of subsidiaries, net of cash acquired		5	(4,223		)	(520		)	(54		)
Disposal of subsidiaries, net of cash disposed			—			353			28
Additions of investments in associates and joint ventures		11	(620		)	(887		)	(681		)
Purchase of long lived assets	12, 13		(714		)	(690		)	(520		)
Disposal of long lived assets	12, 13		47			7			10
Purchase of financial assets			(318		)	(191		)	(1,724		)
Sale of financial assets and other			258			727			376
Net settlement of foreign exchange hedging items			(151		)	143			219
Cash used by investing activities			(5,721		)	(1,058		)	(2,346		)
Financing Activities
Distributions to general partner		28	(114		)	(84		)	(66		)
Distributions to other unitholders		28	(680		)	(544		)	(480		)
Subsidiary distributions to non-controlling interest			(831		)	(169		)	(91		)
Capital provided by non-controlling interest		5	2,847			835			302
Capital provided to non-controlling interest		5	—			(51		)	—
Proceeds from corporate borrowings		18	537			—			738
Repayment of corporate borrowings		18	(306		)	—			—
Proceeds from corporate credit facility		18	2,403			2,316			823
Repayment of corporate credit facility		18	(1,614		)	(2,723		)	(662		)
Proceeds from subsidiary borrowings		18	668			1,406			348
Repayment of subsidiary borrowings		18	(308		)	(984		)	(295		)
Proceeds from other financing activities			—			—			131
Repayment of other financing activities			—			(38		)	(38		)
Preferred units issued		26	220			186			189
Partnership units issued, net of issuance costs		26	992			755			932
Partnership units repurchased		26	—			(6		)	(67		)
Cash from financing activities			3,814			899			1,764
Cash and cash equivalents
Change during the year			(426		)	594			50
Impact of foreign exchange on cash			14			(7		)	(32		)
Cash reclassified as held for sale			—			—			(8		)
Balance, beginning of year			786			199			189
Balance, end of year			$	374		$	786		$	199

F-11 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 1.  ORGANIZATION AND DESCRIPTION OF THE BUSINESS

Brookfield Infrastructure Partners L.P. (our “partnership” and, together with its subsidiaries and operating entities, “Brookfield Infrastructure”) owns and operates utility, transport, energy and communications infrastructure businesses in North and South America, Europe and the Asia Pacific region. Our partnership was formed as a limited partnership established under the laws of Bermuda, pursuant to a limited partnership agreement dated May 17, 2007, as amended and restated. Our partnership is a subsidiary of Brookfield Asset Management Inc. (“Brookfield”). Our partnership’s units are listed on the New York Stock Exchange and the Toronto Stock Exchange under the symbols “BIP” and “BIP.UN”, respectively. Our cumulative Class A preferred limited partnership units, Series 1, Series 3, Series 5, Series 7 and Series 9 are listed on the Toronto Stock Exchange under the symbols “BIP.PR.A”, “BIP.PR.B”, “BIP.PR.C”, “BIP.PR.D” and “BIP.PR.E”, respectively. Our partnership’s registered office is 73 Front Street, Hamilton, HM12, Bermuda.

In these notes to the consolidated financial statements, references to “units” are to the limited partnership units in our partnership other than the preferred units, references to our “preferred units” are to preferred limited partnership units in our partnership and references to our “unitholders” and “preferred unitholders” are to the holders of our units and preferred units, respectively. References to “Class A Preferred Units”, “Series 1 Preferred Units”, “Series 3 Preferred Units”, “Series 5 Preferred Units”, “Series 7 Preferred Units” and “Series 9 Preferred Units” are to cumulative Class A preferred limited partnership units, cumulative Class A preferred limited partnership units, Series 1, cumulative Class A preferred limited partnership units, Series 3, cumulative Class A preferred limited partnership units, Series 5, cumulative Class A preferred limited partnership units, Series 7, and cumulative Class A preferred limited partnership units, Series 9 in our partnership, respectively.

On September 14, 2016, we completed a three-for-two split of our units by way of a subdivision of units (the “Unit Split”), whereby unitholders received an additional one-half of a unit for each unit held, resulting in the issuance of an approximately 115 million additional units. Our preferred units were not affected by the Unit Split. All historical per unit disclosures have been adjusted to effect for the change in units due to the Unit Split.

NOTE 2.  SUBSIDIARIES

The following provides information about our partnership’s wholly-owned subsidiaries as of December 31, 2017 and 2016:

			Ownership interest (%)
		Country of incorporation
Defined Name	Name of entity		2017	2016
Transport
Australian rail operation	Arc Infrastructure Holdings No. 1 Pty Ltd	Australia	100	100
Energy
Australian energy distribution operation	Tas Gas Networks Pty Ltd	Australia	100	100

Brookfield Infrastructure F-12

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The following table presents details of non-wholly owned subsidiaries of our partnership:

			Ownership Interest (%)		Voting interest (%)
		Country of incorporation
Defined Name	Name of entity		2017	2016	2017	2016
Utilities
U.K. regulated distribution operation	BUUK Infrastructure Holdings Limited	U.K.	80	80	80	80
Australian regulated terminal operation	DBCT Management Pty Ltd(1)	Australia	71	71	100	100
Colombian regulated distribution operation	Empresa de Energia de Boyaca S.A.(1)	Colombia	17	17	100	100
Brazilian regulated gas transmission operation	Nova Transportadora do Sudeste S.A. (1),(2)	Brazil	28	—	90	—
Transport
U.K. ports operation	Brookfield Port Acquisitions (UK) Limited(1)	U.K.	59	59	100	100
Australian ports operation	Linx Cargo Care Group Pty Ltd(1),(3)	Australia	27	27	67	67
Chilean toll roads	Sociedad Concesionaria Vespucio Norte Express S.A.(1)	Chile	51	51	89	89
Indian toll roads	BIF India Holdings Pte Ltd(1),(4)	Singapore	40	40	93	93
Peruvian toll roads	Rutas de Lima S.A.C(1),(5)	Peru	17	17	57	57
Energy
North American gas storage operation(6)	Warwick Gas Storage L.P.(1)	Canada	25	25	100	100
Canadian district energy operation	Enwave Energy Corporation(1)	Canada	25	25	100	100
U.S. district energy operation	Enwave USA(1)	U.S.	40	40	100	100
North American gas storage operation(6)	Lodi Gas Storage(1)	U.S.	40	40	100	100
North American gas storage operation(6)	Rockpoint Gas Storage Partners  L.P.(1),(7)	U.S.	40	40	100	100
Corporate & Other
Holding LP	Brookfield Infrastructure L.P.	Bermuda	70	70	100	100

(1) For the above noted subsidiaries, our partnership has entered into voting arrangements to provide our partnership with the ability to direct the relevant activities of the investee. Our partnership controls these investees given that our partnership is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Our partnership exercises judgment to determine the level of variability that will achieve control over an investee, particularly in circumstances where our partnership’s voting interest differs from its ownership interest in an investee. The following were considered to determine whether our partnership controls these investees: the degree of power (if any) held by other investors, the degree of exposure to variability of each investor, the determination of whether any general partner removal rights are substantive and the purpose and design of the investee.

(2) In April 2017, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund (the “consortium”), acquired an effective 28% interest in Nova Transportadora do Sudeste S.A. (“NTS”), a Brazilian regulated gas transmission business, for total consideration of $1.6 billion.

F-13 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

(3) In August 2016, Brookfield Infrastructure expanded its ports business to Australia as it acquired a 27% interest in Linx Cargo Care Group Pty Ltd through a Brookfield-sponsored infrastructure fund, along with institutional partners (the “Brookfield Consortium”) for total consideration of $145 million.

(4) In March 2016, Brookfield Infrastructure acquired a 40% interest in a toll road business in India from Gammon Infrastructure Projects Limited for consideration of $42 million through a Brookfield-sponsored infrastructure fund.

(5) In June 2016, Brookfield Infrastructure acquired a 17% interest in Rutas de Lima S.A.C. for total consideration of $127 million through a Brookfield-sponsored infrastructure fund.

(6) North American gas storage operations include Warwick Gas Storage L.P., Lodi Gas Storage and Rockpoint Gas Storage Partners L.P.

(7) In July 2016, Brookfield Infrastructure acquired a40%interest in Rockpoint Gas Storage Partners L.P. for consideration of$227 millionthrough a Brookfield-sponsored infrastructure fund.

NOTE 3.  SIGNIFICANT ACCOUNTING POLICIES

(a) Statement of Compliance

These consolidated financial statements have been prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board (“IFRS”).

The consolidated financial statements were authorized for issue by the Board of Directors on March 13, 2018.

(b) Basis of Preparation

The consolidated financial statements are prepared on a going concern basis. Standards and guidelines not yet effective for the current accounting period are described in Note 3(s), Future Changes in Accounting Policies.

(i) Subsidiaries

These consolidated financial statements include the accounts of our partnership and subsidiaries over which our partnership has control. Subsidiaries are consolidated from the date of acquisition, being the date on which our partnership obtains control, and continue to be consolidated until the date when control is lost. Our partnership (investor) controls an investee when it is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Together, our partnership and its subsidiaries are referred to as “Brookfield Infrastructure” in these financial statements.

Non-controlling interests may be initially measured either at fair value or at the non-controlling interests’ proportionate share of the fair value of the acquiree’s identifiable net assets. The choice of measurement basis is made on an acquisition by acquisition basis. Subsequent to acquisition, the carrying amount of non-controlling interests is the amount of those interests at initial recognition plus the non-controlling interests’ share of subsequent changes in partnership capital in addition to changes in ownership interests. Total comprehensive income is attributed to non-controlling interests, even if this results in the non-controlling interests having a deficit balance.

Brookfield Infrastructure F-14

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Holding LP has issued Redeemable Partnership Units held by Brookfield, which may, at the request of the holder, require the Holding LP to redeem the Redeemable Partnership Units for cash consideration equal to the market price of our partnership’s units. This right is subject to our partnership’s right of first refusal which entitles it, at its sole discretion, to elect to acquire any Redeemable Partnership Unit so presented to Holding LP in exchange for one of our partnership’s units subject to certain customary adjustments.

All intercompany balances, transactions, revenues and expenses are eliminated in full.

(ii) Associates and Joint Ventures

Associates and joint ventures are entities over which our partnership has significant influence or joint control. Significant influence is the power to participate in the financial and operating policy decisions of the investee but does not constitute control. Our partnership accounts for investments over which it has significant influence using the equity method, and are recorded as Investments in associates and joint ventures on the Consolidated Statements of Financial Position.

Interests in investments accounted for using the equity method are initially recorded at cost. If the cost of the associate is lower than the proportionate share of the investment’s underlying fair value, our partnership records a gain on the difference between the cost and the underlying fair values of the identifiable net assets of the associate. If the cost of the associate is greater than our partnership’s proportionate share of the underlying fair value, goodwill and other adjustments arising from the purchase price allocation relating to the associate is included in the carrying amount of the investment. Subsequent to initial recognition, the carrying value of our partnership’s interest in an investee is adjusted for our partnership’s share of comprehensive income or loss and distributions from the investee.

Profits or losses resulting from transactions with an associate are recognized in the consolidated financial statements based on the interests of unrelated investors in the associate.

(c) Foreign Currency Translation

The U.S dollar is the functional and presentation currency of Brookfield Infrastructure. Each of Brookfield Infrastructure’s subsidiaries, associates and jointly controlled entities determines its own functional currency and items included in the financial statements of each subsidiary and associate are measured using that functional currency.

Assets and liabilities of foreign operations having a functional currency other than the U.S. dollar are translated at the rate of exchange prevailing at the reporting date and revenues and expenses at average rates during the period. Gains or losses on translation are included as a component of other comprehensive income. On disposal of a foreign operation resulting in the loss of control, the component of other comprehensive income due to accumulated foreign currency translation relating to that foreign operation is reclassified to net income. Gains or losses on foreign currency denominated balances and transactions that are designated as hedges of net investments in these operations are reported in the same manner. On partial disposal of a foreign operation in which control is retained, the proportionate share of the component of other comprehensive income or loss relating to that foreign operation is reclassified to non-controlling interests in that foreign operation.

F-15 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Foreign currency denominated monetary assets and liabilities are translated using the rate of exchange prevailing at the reporting date and non-monetary assets and liabilities measured at fair value are translated at the rate of exchange prevailing at the date when the fair value was determined. Revenues and expenses are measured at average rates during the period. Gains or losses on translation of these items are included in net income. Gains and losses on transactions which hedge these items are also included in net income or loss. Foreign currency denominated non-monetary assets and liabilities, measured at historic cost, are translated at the rate of exchange at the transaction date.

(d) Business Combinations

Business acquisitions in which control is acquired are accounted for using the acquisition method, other than those between and among entities under common control. The consideration of each acquisition is measured at the aggregate of the fair values at the acquisition date of assets transferred by the acquirer, liabilities incurred or assumed, and equity instruments issued by Brookfield Infrastructure in exchange for control of the acquiree. Acquisition related costs are recognized in the Consolidated Statement of Operating Results as incurred and included in other expenses.

Where applicable, the consideration for the acquisition includes any asset or liability resulting from a contingent consideration arrangement, measured at its acquisition-date fair value. Subsequent changes in fair values are adjusted against the cost of the acquisition where they qualify as measurement period adjustments. All other subsequent changes in the fair value of contingent consideration classified as liabilities will be recognized in the Consolidated Statements of Operating Results, whereas changes in the fair values of contingent consideration classified within partnership capital are not subsequently re-measured.

Where a business combination is achieved in stages, Brookfield Infrastructure’s previously held interests in the acquired entity are remeasured to fair value at the acquisition date, that is, the date Brookfield Infrastructure attains control and the resulting gain or loss, if any, is recognized in the Consolidated Statements of Operating Results. Amounts arising from interests in the acquiree prior to the acquisition date that have previously been recognized in other comprehensive income are reclassified to the Consolidated Statements of Operating Results, where such treatment would be appropriate if that interest were disposed of.

If the initial accounting for a business combination is incomplete by the end of the reporting period in which the combination occurs, Brookfield Infrastructure reports provisional amounts for the items for which the accounting is incomplete. Those provisional amounts are adjusted during the measurement period, or additional assets or liabilities are recognized, to reflect new information obtained about facts and circumstances that existed as of the acquisition date that, if known, would have affected the amounts recognized as of that date.

The measurement period is the period from the date of acquisition to the date Brookfield Infrastructure obtains complete information about facts and circumstances that existed as of the acquisition date. The measurement period is subject to a maximum of one year subsequent to the acquisition date.

Brookfield Infrastructure F-16

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

If, after reassessment, Brookfield Infrastructure’s interest in the fair value of the acquiree’s identifiable net assets exceeds the sum of the consideration transferred, the amount of any non-controlling interests in the acquiree and the fair value of the acquirer’s previously held equity interest in the acquiree if any, the excess is recognized immediately in profit or loss as a bargain purchase gain.

Contingent liabilities acquired in a business combination are initially measured at fair value at the date of acquisition. At the end of subsequent reporting periods, such contingent liabilities are measured at the higher of the amount that would be recognized in accordance with IAS 37, Provisions, Contingent Liabilities and Contingent Assets (“IAS 37”) and the amount initially recognized less cumulative amortization recognized in accordance with IAS 18, Revenue (“IAS 18”).

(e) Cash and Cash Equivalents

Cash and cash equivalents include cash on hand and short-term investments with original maturities of three months or less.

(f) Accounts Receivable

Trade receivables are recognized initially at fair value and subsequently measured at amortized cost using the effective interest method, less any allowance for uncollectability.

(g) Property, Plant and Equipment

Brookfield Infrastructure uses the revaluation method of accounting for all classes of property, plant and equipment. Property, plant and equipment is initially measured at cost and subsequently carried at its revalued amount, being the fair value at the date of the revaluation less any subsequent accumulated depreciation and any accumulated impairment losses. Revaluations are made on at least an annual basis, and on a sufficient basis to ensure that the carrying amount does not differ significantly from fair value. Where the carrying amount of an asset is increased as a result of a revaluation, the increase is recognized in other comprehensive income or loss and accumulated in equity within the revaluation surplus reserve, unless the increase reverses a previously recognized impairment recorded through net income, in which case that portion of the increase is recognized in net income. Where the carrying amount of an asset is decreased, the decrease is recognized in other comprehensive income to the extent of any balance existing in revaluation surplus in respect of the asset, with the remainder of the decrease recognized in net income. Revaluation gains are included in other comprehensive income, but are not subsequently recycled into profit or loss.

An item of property, plant and equipment and any significant part initially recognized is derecognized upon disposal or when no future economic benefits are expected from its use or disposal. The gain or loss arising on disposal or retirement of an item of property, plant and equipment is determined as the difference between the sales proceeds and the carrying amount of the asset and is recognized in the Consolidated Statements of Operating Results. However, any balance accumulated in revaluation surplus is subsequently recorded in retained earnings when an asset is derecognized and not transferred to profit or loss.

F-17 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Depreciation of an asset commences when it is available for use. Property, plant and equipment are depreciated on a straight line or declining-balance basis over the estimated useful lives of each component of the assets as follows:

Buildings	Up to 70 years
Transmission stations, towers and related fixtures	Up to 40 years
Leasehold improvements	Up to 50 years
Plant and equipment	Up to 40 years
Network systems	Up to 60 years
Track	Up to 40 years
District energy systems	Up to 50 years
Gas storage assets	Up to 50 years

Depreciation on property, plant and equipment is calculated on a straight-line or declining-balance basis so as to depreciate the net cost of each asset over its expected useful life to its estimated residual value. Leasehold improvements are depreciated over the period of the lease or estimated useful life, whichever is the shorter, using the straight-line method. The estimated useful lives, residual values and depreciation methods are reviewed at the end of each annual reporting period, with the effect of any changes recognized on a prospective basis.

(h) Investment Property

Brookfield Infrastructure uses the fair value method to account for assets classified as investment property. An asset is determined to be an investment property when it is principally held to earn rental income or for capital appreciation, or both. Investment property is initially measured at cost including transaction costs. Subsequent to initial recognition, investment properties are carried at fair value. Gains or losses arising from changes in fair value are included in profit or loss.

Fair values are primarily determined by valuation of the lease term and freehold reversion. An income capitalization approach is used by applying a yield to the rental income of the capitalization rate is reflective of the characteristics, location and market of each property. Fair value is estimated by management of our partnership with due consideration given to observable market inputs, where available.

Brookfield Infrastructure F-18

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

(i) Asset Impairment

At each reporting date Brookfield Infrastructure assesses whether for assets, other than those measured at fair value with changes in values recorded in profit or loss, there is any indication that such assets are impaired. This assessment includes a review of internal and external factors which includes, but is not limited to, changes in the technological, political, economic or legal environment in which the entity operates in, structural changes in the industry, changes in the level of demand, physical damage and obsolescence due to technological changes. An impairment is recognized if the recoverable amount, determined as the higher of the estimated fair value less costs of disposal or the discounted future cash flows generated from use and eventual disposal from an asset or cash generating unit is less than its carrying value. The projections of future cash flows take into account the relevant operating plans and management’s best estimate of the most probable set of conditions anticipated to prevail. Where an impairment loss subsequently reverses, the carrying amount of the asset or cash generating unit is increased to the lesser of the revised estimate of recoverable amount and the carrying amount that would have been recorded had no impairment loss been recognized previously.

(j) Intangible Assets

Intangible assets acquired in a business combination and recognized separately from goodwill are initially recognized at their fair value at the acquisition date. Brookfield Infrastructure’s intangible assets are comprised primarily of conservancy rights, service concession arrangements and customer order backlogs.

Subsequent to initial recognition, intangible assets acquired in a business combination are reported at cost less accumulated amortization unless indefinite-lived and accumulated impairment losses, on the same basis as intangible assets acquired separately.

Public service concessions that provide Brookfield Infrastructure the right to charge users for a service in which the service and fee is regulated by the grantor are accounted for as an intangible asset under IFRIC 12, Service Concession Arrangements.

Concession arrangements were acquired as part of the acquisition of the Australian regulated terminal operation, Brazilian regulated gas transmission, and Chilean, Indian and Peruvian toll roads and were initially recognized at their fair values. The intangible asset at the Australian regulated terminal operation relates to use of a specific coal port terminal for a contractual length of time and is amortized over the life of the contractual arrangement with 83 years remaining on a straight-line basis. The intangible assets at the Brazilian regulated gas transmission operation relate to pipeline concession contracts, amortized on a straight-line basis over the life of the contractual arrangement. The intangible assets at the Chilean, Indian and Peruvian toll roads relate to the right to operate a road and charge users a specified tariff for a contractual length of time and is amortized over the life of the contractual arrangement with an average of 16, 6, and 25 years remaining, respectively.

The conservancy right was acquired as part of the acquisition of the U.K. port operation and was recorded at its fair value. As a right in perpetuity issued by the Statutory Harbour Authority in the U.K., the conservancy right is classified as having an indefinite life and is subject to an annual impairment assessment.

F-19 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The customer order backlog was acquired as part of the acquisition of the U.K. regulated distribution operation and was initially recorded at its fair value. The customer order backlog represents the present value of future earnings derived from the build out of contracted connections at the acquisition date of the U.K. regulated distribution operation. The customer order backlog is amortized over its estimated useful life of 15 years.

Gains or losses arising from derecognition of an intangible asset are measured as the difference between the net disposal proceeds and the carrying amount of the asset and are recognized in profit or loss when the asset is derecognized.

(k) Goodwill

Goodwill represents the excess of the price paid for the acquisition of an entity over the fair value of the net tangible and intangible assets and liabilities acquired. Goodwill is allocated to the cash generating unit or units to which it relates. Brookfield Infrastructure identifies cash generating units as identifiable groups of assets that are largely independent of the cash inflows from other assets or groups of assets.

Goodwill is evaluated for impairment annually or more often if events or circumstances indicate there may be impairment. Impairment is determined for goodwill by assessing if the carrying value of a cash generating unit, including the allocated goodwill, exceeds its recoverable amount determined as the greater of the estimated fair value less costs of disposal or the value in use. Impairment losses recognized in respect of a cash generating unit are first allocated to the carrying value of goodwill and any excess is allocated to the carrying amount of assets in the cash generating unit. Any goodwill impairment is charged to profit or loss in the period in which the impairment is identified. Impairment losses on goodwill are not subsequently reversed.

On disposal of a subsidiary, the attributable amount of goodwill is included in the determination of the gain or loss on disposal of the operation.

(l) Revenue Recognition

Revenue is recognized to the extent that it is probable that the economic benefits will flow to Brookfield Infrastructure and the revenue and costs incurred or to be incurred can be reliably measured.

Revenue is measured at the fair value of the consideration received or receivable. Amounts disclosed as revenue are net of estimated customer returns, trade allowances, rebates and other similar allowances.

When our partnership receives a transfer of cash or property, plant and equipment from a customer, it assesses whether the constructed or acquired item of property, plant and equipment meets the definition of an asset in accordance with IFRIC 18, Transfer of Assets from Customers (“IFRIC 18”). If the definition of an asset is met, our partnership recognizes the item of property, plant and equipment at its cost and recognizes revenue or deferred revenue, as applicable, for the same amount based on the appropriate revenue recognition policy.

Brookfield Infrastructure recognizes revenue when the specific criteria have also been met for each of Brookfield Infrastructure’s activities as described below. Cash received by Brookfield Infrastructure from customers is recorded as deferred revenue until revenue recognition criteria are met.

Brookfield Infrastructure F-20

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Utilities

Revenue from utilities infrastructure is derived from the transmission of energy and natural gas, the distribution of energy and from Brookfield Infrastructure’s Australian regulated terminal operation. Distribution and transmission revenue is recognized when services are rendered based upon usage or volume during that period. Terminal infrastructure charges are charged at set rates per tonne of coal based on each customer’s annual contracted tonnage and is then recognized on a pro-rata basis each month. Brookfield Infrastructure’s Australian regulated terminal operation also recognizes handling charges based on tonnes of coal shipped through the terminal. Brookfield Infrastructure’s regulated distribution operation receives customer contributions which are recorded in deferred revenue and released on a percentage of completion basis in accordance with IFRIC 18 and IAS 11.

Transport

Revenue from transport infrastructure consists primarily of freight, toll road operations and transportation services revenue. Revenue is recognized when services are provided and rendered based primarily on usage or volume throughput during the period.

Energy

Revenue from energy infrastructure consists primarily of energy transmission and storage as well as district energy services. Revenue is recognized when services are provided and rendered based primarily on usage or volume throughput during the period.

Communications Infrastructure

Revenue from communications infrastructure is derived from contracts with media broadcasting and telecom customers to access infrastructure. Customers pay upfront and recurring fees to lease space on towers to host their equipment. Recurring rental revenue is recognized on a straight line basis based on lease agreements. Upfront payments which are separable from the recurring revenue under IFRIC 18 are recognized on a percentage of completion basis on the construction asset they relate to.

F-21 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

(m) Financial Instruments and Hedge Accounting

The following summarizes Brookfield Infrastructure’s classification and measurement of financial assets and liabilities:

	Classification	Measurement
Financial assets
Cash and cash equivalents	Loans and receivables	Amortized cost
Accounts receivable and other	Loans and receivables	Amortized cost
Restricted cash and deposits	Loans and receivables	Amortized cost
Marketable securities	Available-for-sale	Fair value
Financial assets
Derivative assets	FVTPL(1)	Fair value
Other financial assets	Loans and receivables/ Available-for-sale	Amortized cost/ Fair value
Financial liabilities
Corporate borrowings	Other liabilities	Amortized cost
Non-recourse borrowings	Other liabilities	Amortized cost (2)
Accounts payable and other	Other liabilities	Amortized cost
Preferred shares	Other liabilities	Amortized cost
Financial liabilities	FVTPL(1)	Fair value

(1) Fair value through profit or loss (“FVTPL”), except for derivatives in certain hedge relationships.

(2) Except for derivatives embedded in the related financial instruments that are classified as FVTPL and measured at fair value.

Our partnership maintains a portfolio of marketable securities comprised of liquid equity and debt securities. The marketable securities are classified as available-for-sale and are subsequently measured at fair value at each reporting date with the change in fair value recorded in other comprehensive income. When a decline in the fair value of an available-for-sale financial asset has been recognized in other comprehensive income and there is objective evidence that the asset is impaired, the cumulative loss that had been recognized in other comprehensive income is reclassified from equity to profit or loss as a reclassification adjustment.

Brookfield Infrastructure selectively utilizes derivative financial instruments primarily to manage financial risks, including interest rate and foreign exchange risks. Derivative financial instruments are recorded at fair value. Hedge accounting is applied when the derivative is designated as a hedge of a specific exposure and there is assurance that it will continue to be highly effective as a hedge based on an expectation of offsetting cash flows or fair value. Hedge accounting is discontinued prospectively when the derivative no longer qualifies as a hedge or the hedging relationship is terminated. Once discontinued, the cumulative change in fair value of a derivative that was previously recorded in other comprehensive income by the application of hedge accounting is recognized in profit or loss over the remaining term of the original hedging relationship as amounts related to the hedged item are recognized in profit or loss. The assets or liabilities relating to unrealized mark-to-market gains and losses on derivative financial instruments are recorded in Financial Assets and Financial Liabilities, respectively.

Brookfield Infrastructure F-22

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

(i) Items Classified as Hedges

Realized and unrealized gains and losses on foreign exchange contracts, designated as hedges of currency risks relating to a net investment in a subsidiary with a functional currency other than the U.S. dollar are included in equity and are included in net income in the period in which the subsidiary is disposed of or to the extent partially disposed and control is not retained. Derivative financial instruments that are designated as hedges to offset corresponding changes in the fair value of assets and liabilities and cash flows are measured at estimated fair value with changes in fair value recorded in profit or loss or as a component of equity as applicable.

Unrealized gains and losses on interest rate contracts designated as hedges of future variable interest payments are included in equity as a cash flow hedge when the interest rate risk relates to an anticipated variable interest payment. The periodic exchanges of payments on interest rate swap contracts designated as hedges of debt are recorded on an accrual basis as an adjustment to interest expense. The periodic exchanges of payments on interest rate contracts designated as hedges of future interest payments are amortized into profit or loss over the term of the corresponding interest payments.

(ii) Items Not Classified as Hedges

Derivative financial instruments that are not designated as hedges are carried at estimated fair value, and realized and unrealized gains and losses are recognized in net income in the period the gains and losses occur.

Other financial assets are classified as loans and receivables or available-for-sale securities based on their nature and use within our partnership’s business and are recorded initially at fair value. Other financial assets classified as available-for-sale are subsequently measured at fair value at each reporting date with the change in fair value recorded in other comprehensive income. Other financial assets classified as loans and receivables are subsequently measured at amortized cost using the effective interest method, less any impairment. Assets classified as loans and receivables are impaired when there exists objective evidence that the financial asset is impaired.

(n) Income Taxes

Income tax expense represents the sum of the tax accrued in the period and deferred income tax.

(i) Current income tax

Current income tax assets and liabilities are measured at the amount expected to be paid to tax authorities, net of recoveries based on the tax rates and laws enacted or substantively enacted at the reporting date. Current income tax relating to items recognized directly in partnership capital are also recognized directly in partnership capital and other comprehensive income.

F-23 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

(ii) Deferred income tax

Deferred income tax liabilities are provided for using the liability method on temporary differences between the tax bases used in the computation of taxable income and carrying amounts of assets and liabilities in the consolidated financial statements. Deferred income tax assets are recognized for all deductible temporary differences, carry forward of unused tax credits and unused tax losses, to the extent that it is probable that deductions, tax credits and tax losses can be utilized. Such deferred income tax assets and liabilities are not recognized if the temporary difference arises from goodwill or from the initial recognition of other assets and liabilities in a transaction that affects neither the taxable income nor the accounting income, other than in a business combination. The carrying amount of deferred income tax assets are reviewed at each reporting date and reduced to the extent it is no longer probable that the income tax asset will be recovered.

Deferred income tax liabilities are recognized for taxable temporary differences associated with investments in subsidiaries and associates, and interests in joint ventures, except where Brookfield Infrastructure is able to control the reversal of the temporary difference and it is probable that the temporary differences will not reverse in the foreseeable future. Deferred income tax assets arising from deductible temporary differences associated with such investments and interests are only recognized to the extent that it is probable that there will be sufficient taxable income against which to utilize the benefits of the temporary differences and they are expected to reverse in the foreseeable future.

Deferred income tax assets and liabilities are measured at the tax rates that are expected to apply in the period in which the liability is settled or the asset realized, based on tax rates and tax laws that have been enacted or substantively enacted by the end of the reporting period. The measurement of deferred income tax liabilities and assets reflect the tax consequences that would follow from the manner in which Brookfield Infrastructure expects, at the end of the reporting period, to recover or settle the carrying amount of its assets and liabilities.

Deferred income tax assets and liabilities are offset when there is a legally enforceable right to set off current tax assets against current tax liabilities and when they relate to income taxes levied by the same taxation authority within a single taxable entity or Brookfield Infrastructure intends to settle its current tax assets and liabilities on a net basis in the case where there exist different taxable entities in the same taxation authority and when there is a legally enforceable right to set off current tax assets against current tax liabilities.

(o) Assets Held for Sale

Non-current assets and disposal groups are classified as held for sale if their carrying amount will be recovered principally through a sale transaction rather than through continuing use. This condition is regarded as met only when the sale is highly probable and the non-current asset or disposal group is available for immediate sale in its present condition. Management must be committed to the sale, which should be expected to qualify for recognition as a completed sale within one year from the date of classification subject to limited exceptions.

When Brookfield Infrastructure is committed to a sale plan involving loss of control of a subsidiary, all of the assets and liabilities of that subsidiary are classified as held for sale when the criteria described above are met, regardless of whether Brookfield Infrastructure will retain a non-controlling interest in its former subsidiary after the sale.

Brookfield Infrastructure F-24

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Non-current assets and disposal groups classified as held for sale are measured at the lower of their previous carrying amount and fair value less costs to sell.

Non-current assets classified as held for sale and the assets of a disposal group are presented separately from other assets in the Consolidated Statements of Financial Position and are classified as current. The liabilities of a disposal group classified as held for sale are presented separately from other liabilities in the Consolidated Statements of Financial Position.

Once classified as held for sale, property, plant and equipment and intangible assets are not depreciated or amortized, respectively.

(p) Provisions

Provisions are recognized when Brookfield Infrastructure has a present obligation, either legal or constructive, as a result of a past event, it is probable that Brookfield Infrastructure will be required to settle the obligation, and a reliable estimate can be made of the amount of the obligation.

The amount recognized as a provision is the best estimate of the consideration required to settle the present obligation at the end of the reporting period, taking into account the risks and uncertainties surrounding the obligation. Where a provision is measured using the cash flows estimated to settle the obligation, its carrying amount is the present value of those cash flows.

When some or all of the economic benefits required to settle a provision are expected to be recovered from a third party, the receivable is recognized as an asset if it is virtually certain that reimbursement will be received and the amount of the receivable can be measured reliably.

(q) Critical Accounting Judgments and Key Sources of Estimation Uncertainty

The preparation of financial statements requires management to make critical judgments, estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses that are not readily apparent from other sources, during the reporting period. These estimates and associated assumptions are based on historical experience and other factors that are considered to be relevant. Actual results may differ from these estimates.

F-25 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The estimates and underlying assumptions are reviewed on an ongoing basis. Revisions to accounting estimates are recognized in the period in which the estimate is revised if the revision affects only that period, or in the period of the revision and future periods if the revision affects both current and future periods.

Critical judgments made by management and utilized in the normal course of preparing Brookfield Infrastructure’s consolidated financial statements are outlined below.

(i) Common control transactions

IFRS 3 (2008) Business Combinations does not include specific measurement guidance for transfers of businesses or subsidiaries between entities under common control. Accordingly, Brookfield Infrastructure has developed a policy to account for such transactions taking into consideration other guidance in the IFRS framework and pronouncements of other standard-setting bodies. Brookfield Infrastructure’s policy is to record assets and liabilities recognized as a result of transactions between entities under common control at the carrying value on the transferor’s financial statements, and to have the Consolidated Statements of Financial Position, Consolidated Statements of Operating Results, Consolidated Statements of Comprehensive Income and Statements of Cash Flows reflect the results of combining entities for all periods presented for which the entities were under the transferor’s common control, irrespective of when the combination takes place.

(ii) Financial instruments

Brookfield Infrastructure’s accounting policies relating to derivative financial instruments are described in Note 3(m), Financial Instruments and Hedge Accounting. The critical judgments inherent in these policies relate to applying the criteria to the assessment of the effectiveness of hedging relationships. Estimates and assumptions used in determining the fair value of financial instruments are equity and commodity prices; future interest rates; the credit worthiness of the company relative to its counterparties; the credit risk of our partnership and counterparty; estimated future cash flows; and discount rates.

(iii) Revaluation of property, plant and equipment

Property, plant and equipment is revalued on a regular basis. The critical estimates and assumptions underlying the valuation of property, plant and equipment are set out in Note 12, Property, Plant and Equipment.

(iv) Fair values in business combinations

Brookfield Infrastructure accounts for business combinations using the acquisition method of accounting. This method requires the application of fair values for both the consideration given and the assets and liabilities acquired. The calculation of fair values is often predicated on estimates and judgments including future cash flows discounted at an appropriate rate to reflect the risk inherent in the acquired assets and liabilities (refer to Note 5, Acquisition of Business for details of business combinations). The determination of the fair values may remain provisional for up to 12 months from the date of acquisition due to the time required to obtain independent valuations of individual assets and to complete assessments of provisions. When the accounting for a business combination has not been completed as at the reporting date, this is disclosed in the financial statements, including observations on the estimates and judgments made as of the reporting date.

Brookfield Infrastructure F-26

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

(v) Assets held for sale

Brookfield Infrastructure applies judgment to determine whether an asset or disposal group is available for immediate sale in its present condition and that its sale is highly probable and therefore should be classified as held for sale at the balance sheet date. Conditions that support a highly probable sale include the following: an appropriate level of management is committed to a plan to sell the asset or disposal group, an active programme to locate a buyer is initiated, the asset is being actively marketed for sale at a price reasonable in relation to its fair value, the sale is highly probably within 12 months of classification as held for sale, and actions required to complete the plan indicate that it is unlikely that plan will be significantly changed or withdrawn.

(vi) Impairment of goodwill, intangibles with indefinite lives and investment in associates and joint ventures

The impairment assessment of goodwill and intangible assets with indefinite lives requires estimation of the value-in-use or fair value less costs of disposal of the cash-generating units to which goodwill or the intangible asset has been allocated. Brookfield Infrastructure uses the following critical assumptions and estimates: the circumstances that gave rise to the goodwill, timing and amount of future cash flows expected from the cash-generating unit; discount rates; terminal capitalization rates; terminal valuation dates and useful lives.

The impairment assessment of investments in associates and joint ventures requires estimation of the recoverable amount of the asset.

Other estimates utilized in the preparation of our partnership’s financial statements are: depreciation and amortization rates and useful lives; recoverable amount of goodwill and intangible assets; ability to utilize tax losses and other tax measurements.

Other critical judgments utilized in the preparation of our partnership’s financial statements include the methodologies for calculating amortization, determination of operating segments and determination of control.

(r) Recently adopted accounting standard amendments

Brookfield Infrastructure applied, for the first time, certain amendments to Standards applicable to Brookfield Infrastructure that became effective January 1, 2017. The impact of adopting these amendments on our partnership’s accounting policies and disclosures are as follows:

IAS 7 Statement of Cash Flows (“IAS 7”)

In January 2016, the IASB issued amendments to IAS 7, effective for annual periods beginning on or after January 1, 2017. The amendment requires that the following changes in liabilities arising from financing activities are disclosed (to the extent necessary): (i) changes from financing cash flows; (ii) changes arising from obtaining or losing control of subsidiaries or other businesses; (iii) the effect of changes in foreign exchange rates; (iv) changes in fair values; and (v) other changes. Amendments to IAS 7 were applied prospectively and resulted in no material impact to Brookfield Infrastructure’s consolidated financial statements.

F-27 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

(s) Future Changes in Accounting Policies

Standards issued, but not yet adopted

IFRS 15 Revenue from Contracts with Customers—(“IFRS 15”)

IFRS 15, Revenue from Contracts with Customers specifies how and when revenue should be recognized as well as requiring more informative and relevant disclosures. This standard also requires additional disclosures about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts. IFRS 15 supersedes IAS 18, Revenue, IAS 11, Construction Contracts and a number of revenue-related interpretations. IFRS 15 applies to nearly all contracts with customers: the main exceptions are leases, financial instruments and insurance contracts. IFRS 15 must be applied for periods beginning on or after January 1, 2018. An entity may adopt the standard on a fully retrospective basis or on a modified retrospective basis.

Our partnership has a global team in place to evaluate the financial statement and any corollary impact of adopting IFRS 15, has participated in strategic planning sessions with Brookfield and has developed an adoption plan. Management has also assessed major revenue streams, and has substantially completed accumulating, identifying and inventorying detailed information on major contracts that may be impacted by the changes at the transition date. The key areas of focus within the context of the standard are primarily in relation to the identification of performance obligation and the evaluation of the appropriate period of recognition of revenue for each of these performance obligations.

Our partnership has finalized the documented analysis and assessed potential impact to IT systems and internal controls. We will adopt the new revenue guidance effective January 1, 2018, using the modified retrospective approach, by recognizing the cumulative effect of initially applying the new standard as an adjustment to opening retained earnings as if the standard had always been in effect and whereby comparative periods will not be restated. No material adjustments required upon adoption have been noted to date, however further technical analysis and quantitative assessments are required to conclude on the overall impact.

IFRS 9 Financial Instruments—(“IFRS 9”)

In July 2014, the IASB issued the final publication of IFRS 9, superseding IAS 39, Financial Instruments. This standard establishes principles for the financial reporting of financial assets and financial liabilities that will present relevant and useful information to users of financial statements for their assessment of the amounts, timing and uncertainty of an entity’s future cash flows. This new standard also includes a new general hedge accounting standard which will align hedge accounting more closely with an entity’s risk management activities. It does not fully change the types of hedging relationships or the requirement to measure and recognize ineffectiveness, however, it will allow more hedging strategies that are used for risk management to qualify for hedge accounting and introduce more judgment to assess the effectiveness of a hedging relationship. The standard has a mandatory effective date for annual periods beginning on or after January 1, 2018.

Brookfield Infrastructure F-28

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Our partnership has a global team in place to evaluate the financial statements and any corollary impact of IFRS 9 on its consolidated financial statements and business processes. To date, management has participated in a number of strategic planning and analysis sessions with its subsidiaries and associates in order to evaluate the impact of IFRS 9 with a primary focus on the appropriateness of financial asset classification and the consideration of the financial asset impairment requirements under this standard. The evaluation of changes resulting from IFRS 9 relating to hedge accounting have been substantially completed and it has been determined that certain hedge accounting relationships relating to aggregated foreign currency exposures will qualify for hedge accounting under this new standard. Consequently, the partnership has completed the hedge documentation for these relationships in order to apply hedge accounting to these relationships prospectively commencing on January 1, 2018. In addition, our partnership has elected certain gas storage contracts to be measured at fair value through profit or loss. Next steps involve the finalization of documented analyses and drafting pro-forma disclosures that will be required upon initial adoption of this standard and thereafter. We are progressing as planned toward the implementation of IFRS 9.

Our partnership has decided to adopt IFRS 9 retrospectively with no restatement of comparatives. A cumulative catch-up adjustment will be recorded through equity upon initial adoption. No material adjustments required upon adoption have been noted to date, however further technical analysis and quantitative assessments are required to conclude on the overall impact.

IFRS 16 Leases—(“IFRS 16”)

The IASB has published a new standard, IFRS 16. The new standard brings most leases on-balance sheet for lessees under a single model, eliminating the distinction between operating and finance leases. Lessor accounting however remains largely unchanged and the distinction between operating and finance leases is retained. IFRS 16 supersedes IAS 17, Leases and related interpretations and is effective for periods beginning on or after January 1, 2019, with earlier adoption permitted if IFRS 15 has also been applied. Brookfield Infrastructure is currently evaluating the impact of IFRS 16 on its consolidated financial statements.

Amendments and Interpretations, not yet adopted

IFRIC 22 Foreign Currency Transactions and Advance Considerations—(“IFRIC 22”)

In December 2016, the IASB issued IFRIC 22, effective for annual periods beginning on or after January 1, 2018. The interpretation clarifies that the date of the transaction for the purpose of determining the exchange rate to use on initial recognition of the related asset, expense or income (or part of it) is the date on which an entity initially recognizes the non-monetary asset or non-monetary liability arising from the payment or receipt of advance consideration. The Interpretation may be applied either retrospectively or prospectively. Adoption will occur on a prospective basis and it is not anticipated that the impact will be material.

F-29 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

IFRIC 23 Uncertainty over Income Tax Treatments—(“IFRIC 23”)

In June 2017, the IASB published IFRIC 23, effective for annual periods beginning on or after January 1, 2019. The interpretation requires an entity to assess whether it is probable that a tax authority will accept an uncertain tax treatment used, or proposed to be used, by an entity in its income tax filings and to exercise judgment in determining whether each tax treatment should be considered independently or whether some tax treatments should be considered together. The decision should be based on which approach provides better predictions of the resolution of the uncertainty. An entity also has to consider whether it is probable that the relevant authority will accept each tax treatment, or group of tax treatments, assuming that the taxation authority with the right to examine any amounts reported to it will examine those amounts and will have full knowledge of all relevant information when doing so. The interpretation may be applied on either a fully retrospective basis or a modified retrospective basis without restatement of comparative information. Brookfield Infrastructure is currently evaluating the impact of IFRIC 23 on its consolidated financial statements.

Brookfield Infrastructure F-30

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 4.  SEGMENT INFORMATION

IFRS 8, Operating Segments, requires operating segments to be determined based on information that is regularly reviewed by the Executive Management and the Board of Directors for the purpose of allocating resources to the segment and to assessing its performance. Key measures used by the Chief Operating Decision Maker (“CODM”) in assessing performance and in making resource allocation decisions are funds from operations (“FFO”) and earnings before interest, tax, depreciation and amortization (“Adjusted EBITDA”), which enable the determination of return on the equity deployed. FFO is calculated as net income excluding the impact of depreciation and amortization, deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. Adjusted EBITDA is calculated as net income excluding the impact of depreciation and amortization, interest expense, current and deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses.

FOR THE YEAR ENDED DECEMBER 31, 2017 US$ MILLIONS	Total attributable to Brookfield Infrastructure
																			Contribution from investments in associates			Attributable to non- controlling interest			As per IFRS financials on F-6(1)
	Utilities			Transport			Energy			Comm. Infrastructure			Corporate			Total
Revenues	$	988		$	1,589		$	559		$	165		$	—		$	3,301		$	(1,624	)	$	1,858		$	3,535
Costs attributed to revenues	(250		)	(895		)	(278		)	(75		)	—			(1,498		)	861			(872		)	(1,509		)
General and administrative costs	—			—			—			—			(239		)	(239		)	—			—			(239		)
Adjusted EBITDA	738			694			281			90			(239		)	1,564			(763		)	986
Other (expense) income	(14		)	(4		)	15			(2		)	45			40			7			(108		)	(61		)
Interest expense	(114		)	(158		)	(87		)	(12		)	(63		)	(434		)	172			(166		)	(428		)
FFO	610			532			209			76			(257		)	1,170			(584		)	712
Depreciation and amortization	(186		)	(312		)	(151		)	(77		)	—			(726		)	382			(327		)	(671		)
Deferred taxes	(52		)	(1		)	11			21			14			(7		)	(22		)	(38		)	(67		)
Mark-to-market on hedging items and other	(59		)	(80		)	(37		)	(9		)	(127		)	(312		)	106			124			(82		)
Share of earnings from associates	—			—			—			—			—			—			118			—			118
Net income attributable to non-controlling interest and preferred unitholders	—			—			—			—			—			—			—			(471		)	(471		)
Net income (loss) attributable to partnership(2)	$	313		$	139		$	32		$	11		$	(370	)	$	125		$	—		$	—		$	125

F-31 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

FOR THE YEAR ENDED DECEMBER 31, 2016 US$ MILLIONS	Total attributable to Brookfield Infrastructure
																			Contribution from investments in associates			Attributable to non- controlling interest			As per IFRS financials on F-6(1)
	Utilities			Transport			Energy			Comm. Infrastructure			Corporate			Total
Revenues	$	684		$	1,247		$	496		$	163		$	—		$	2,590		$	(1,311	)	$	836		$	2,115
Costs attributed to revenues	(160		)	(650		)	(220		)	(72		)	—			(1,102		)	651			(612		)	(1,063		)
General and administrative costs	—			—			—			—			(166		)	(166		)	—			—			(166		)
Adjusted EBITDA	524			597			276			91			(166		)	1,322			(660		)	224
Other income (expense)	5			(17		)	8			(2		)	84			78			16			1			95
Interest expense	(130		)	(157		)	(109		)	(12		)	(48		)	(456		)	190			(126		)	(392		)
FFO	399			423			175			77			(130		)	944			(454		)	99
Depreciation and amortization	(154		)	(253		)	(128		)	(74		)	—			(609		)	328			(166		)	(447		)
Deferred taxes	5			26			(38		)	29			(17		)	5			9			4			18
Mark-to-market on hedging items and other	(88		)	10			81			(5		)	149			147			(131		)	117			133
Share of earnings from associates	—			—			—			—			—			—			248			—			248
Net income attributable to non-controlling interest and preferred unitholders	—			—			—			—			—			—			—			(54		)	(54		)
Net income (loss) attributable to partnership(2)	$	162		$	206		$	90		$	27		$	2		$	487		$	—		$	—		$	487

Brookfield Infrastructure F-32

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

FOR THE YEAR ENDED DECEMBER 31, 2015 US$ MILLIONS	Total attributable to Brookfield Infrastructure
													Contribution from investments in associates		Attributable to non- controlling interest		As per IFRS financials on F-6(1)
	Utilities		Transport		Energy		Comm. Infrastructure		Corporate		Total
Revenues	698		1,143		349		123		—		2,313		(1,044	)	586		1,855
Costs attributed to revenues	(174	)	(588	)	(183	)	(57	)	—		(1,002	)	546		(342	)	(798	)
General and administrative costs	—		—		—		—		(134	)	(134	)	—		—		(134	)
Adjusted EBITDA	524		555		166		66		(134	)	1,177		(498	)	244
Other income (expense)	5		(15	)	3		—		34		27		13		(4	)	36
Interest expense	(142	)	(142	)	(79	)	(6	)	(27	)	(396	)	144		(115	)	(367	)
FFO	387		398		90		60		(127	)	808		(341	)	125
Depreciation and amortization	(153	)	(217	)	(90	)	(46	)	—		(506	)	246		(115	)	(375	)
Deferred taxes	(8	)	21		14		14		12		53		(41	)	14		26
Mark-to-market on hedging items and other	(16	)	(67	)	(14	)	(13	)	56		(54	)	67		66		79
Share of earnings from associates	—		—		—		—		—		—		69		—		69
Net income attributable to non-controlling interest and preferred unitholders	—		—		—		—		—		—		—		(90	)	(90	)
Net income (loss) attributable to partnership(2)	210		135		—		15		(59	)	301		—		—		301

(1) The above table provides each segment’s results in the format that management organizes its segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account Brookfield Infrastructure’s ownership in operations accounted for using the consolidation and equity methods under IFRS. The above table reconciles Brookfield Infrastructure’s proportionate results to our partnership’s consolidated statements of operating results on a line by line basis by aggregating the components comprising the earnings from our partnership’s investments in associates and reflecting the portion of each line item attributable to non-controlling interests.

(2) Net income (loss) attributable to our partnership includes net income (loss) attributable to non-controlling interests—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

Segment assets

For the purpose of monitoring segment performance and allocating resources between segments, the CODM monitors the assets, including investments accounted for using the equity method, attributable to each segment.

The following is an analysis of Brookfield Infrastructure’s assets by reportable operating segment for the years under review:

	Total Attributable to Brookfield Infrastructure
														Contribution from investments in associates			Attributable to non- controlling interest		Working capital adjustment and other		As per IFRS financials on F-5(1)
AS AT DECEMBER 31, 2017 US$ MILLIONS	Utilities		Transport		Energy		Comm. Infrastructure		Corporate			Brookfield Infrastructure
Total assets	$	6,542	$	6,990	$	3,134	$	1,049	$	(1,083	)	$	16,632	$	(3,134	)	$	11,668	$	4,311	$	29,477

F-33 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

	Total Attributable to Brookfield Infrastructure
														Contribution from investments in associates			Attributable to non- controlling interest		Working capital adjustment and other		As per IFRS financials on F-5(1)
AS AT DECEMBER 31, 2016 US$ MILLIONS	Utilities		Transport		Energy		Comm. Infrastructure		Corporate			Brookfield Infrastructure
Total assets	$	4,605	$	6,160	$	3,032	$	933	$	(510	)	$	14,220	$	(2,996	)	$	6,496	$	3,555	$	21,275

(1) The above table provides each segment’s assets in the format that management organizes its segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account Brookfield Infrastructure’s ownership in operations using consolidation and the equity method whereby our partnership either controls or exercises significant influence over the investment respectively. The above table reconciles Brookfield Infrastructure’s proportionate assets to total assets presented on our partnership’s Consolidated Statements of Financial Position by removing net liabilities contained within investments in associates and joint ventures and reflecting the assets attributable to non-controlling interests, and adjusting for working capital assets which are netted against working capital liabilities.

Geographic Information

Revenues from external customers

US$ MILLIONS	2017		2016		2015
Australia	$	1,093	$	793	$	699
Brazil	938		—		—
United Kingdom	565		566		635
Colombia	161		150		152
Canada	193		163		118
Chile	153		127		113
United States of America	183		154		138
India	57		39		—
Peru	103		97		—
New Zealand	89		26		—
	$	3,535	$	2,115	$	1,855

Over 10% of our partnership’s revenue is from one customer. For the year ended December 31, 2017, revenue generated from this customer of the utilities segment was $938 million (2016: $nil).

Brookfield Infrastructure F-34

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Non-current Assets

US$ MILLIONS	2017		2016
Australia	$	5,770	$	5,542
United Kingdom	4,431		3,739
Chile	2,045		1,748
Brazil	8,184		1,895
United States of America	2,818		2,470
Canada	1,468		1,252
Colombia	764		700
Europe	836		718
India	256		265
Peru	1,356		1,281
New Zealand	37		33
	$	27,965	$	19,643

F-35 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 5.  ACQUISITION OF BUSINESSES

a) Acquisition of Brazilian regulated gas transmission business

On April 4, 2017, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund (the “consortium”), acquired an effective 28% interest in Nova Transportadora do Sudeste S.A. (“NTS”), a Brazilian regulated gas transmission business, for total consideration by Brookfield Infrastructure of approximately $1.6 billion (consortium total of $5.1 billion). Brookfield Infrastructure’s consideration consists of $1.3 billion in cash (consortium total of $4.2 billion) and deferred consideration of $0.3 billion (consortium total of $0.9 billion) payable five years from the close of the transaction. Concurrently, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective April 4, 2017. Acquisition costs of $8 million were recorded as Other expenses within the Consolidated Statements of Operating Results.

Consideration transferred

US$ MILLIONS
Cash	$	1,306
Consideration payable(1)	262
Total Consideration	$	1,568

Fair value of assets and liabilities acquired as of April 4, 2017:

US$ MILLIONS
Cash and cash equivalents	$	89
Accounts receivable and other	317
Intangible assets(2)	5,515
Goodwill	804
Accounts payable and other liabilities	(202		)
Deferred income tax liabilities	(946		)
Net assets acquired before non-controlling interest	5,577
Non-controlling interest(3)	(4,009		)
Net assets acquired	1,568

(1) The deferred consideration is payable on the fifth anniversary of the date of acquisition and has therefore been initially recorded at fair value within non-current financial liabilities on the consolidated statements of financial position. The deferred consideration is denominated in U.S. dollars and accrues interest at 3.35% compounded annually. The financial liability will be subsequently measured at amortized cost.

(2) Represents authorizations that expire between 2039 and 2041.

(3) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date.

Brookfield Infrastructure F-36

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Upon acquisition of an interest in NTS, an additional deferred tax liability of $893 million was recorded. The deferred income tax liability arose as the tax bases of the net assets acquired were lower than their fair values. The inclusion of this liability in the net book value of the acquired business, partially offset by the recognition of non-controlling interest at fair value, gave rise to goodwill of $804 million, which is recoverable so long as the tax circumstances that gave rise to the goodwill do not change. To date, no such changes have occurred. None of the goodwill recognized is deductible for income tax purposes.

For the year ended December 31, 2017, the Brazilian regulated gas transmission business contributed revenues of $938 million and net income of $495 million.

b) Individually insignificant business combinations

The following table summarizes the purchase price allocation of individually insignificant business combinations that have been completed during the twelve-month periods ended December 31, 2017.

US$ MILLIONS
Cash	$	9
Consideration payable	18
Total consideration	$	27

Fair value of assets and liabilities acquired (provisional):

US$ MILLIONS
Accounts receivable and other	$	28
Goodwill	11
Property, plant and equipment	100
Deferred income tax and other liabilities	(31		)
Non-recourse borrowings	(30		)
Net assets acquired before non-controlling interest	78
Non-controlling interest(1)	(51		)
Net assets acquired	$	27

(1) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date.

For the year ended December 31, 2017, the individually insignificant business combinations contributed revenues of $24 million and net income of $4 million.

F-37 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

c) Acquisition of Australian ports business

On August 18,2016, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund, and Qube Holdings Limited, along with its respective institutional partners, acquired certain assets from Asciano Limited. As part of this transaction Brookfield Infrastructure tendered its 20% interest in Asciano acquired in the fourth quarter of 2015. As a result of tendering its interest in Asciano Limited, a gain of $123 million was recorded in Other income on the Consolidated Statements of Operating Results during the third quarter of 2016, representing the reclassification of available for sale mark-to-market gains of $44 million and foreign exchange gains of $79 million to net income from accumulated other comprehensive income.

Concurrently, Brookfield Infrastructure acquired an effective 27% interest in Linx Cargo Care, alongside other members of the Brookfield Consortium, through a Brookfield-sponsored infrastructure fund for total consideration of $145 million, comprising of $13 million in cash and a portion of our partnership’s previously existing interest in shares of Asciano Limited with an acquisition date fair value of $132 million (Brookfield Consortium total consideration of $63 million cash and $442 million in fair value of shares, funded through our partnership). Concurrently, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective August 18,2016. Acquisition costs of $17 million were recorded as Other expenses within the Consolidated Statements of Operating Results in 2016.

Consideration transferred

US$ MILLIONS
Cash	$	13
Common shares of Asciano Limited	132
Total consideration	$	145

Brookfield Infrastructure F-38

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Fair value of assets and liabilities acquired as of August 18, 2016

US$ MILLIONS
Cash and cash equivalents	$	12
Accounts receivable and other	233
Assets classified as held for sale(1)	115
Property, plant and equipment	225
Intangible assets	69
Goodwill	199
Liabilities directly associated with assets classified as held for sale(1)	(58		)
Deferred income tax and other liabilities	(109		)
Non-recourse borrowings	(181		)
Net assets acquired before non-controlling interest	505
Non-controlling interest(2)	(360		)
Net assets acquired	$	145

(1) $115 million of equity accounted investments and $58 million of non-recourse borrowings relate to a non-core business acquired as part of the acquisition of the Australian ports business which was sold in the fourth quarter of 2016. The net proceeds recorded approximated the carrying value of the business and therefore no gain or loss on disposition was recorded.

(2) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date.

The additional goodwill recorded on acquisition primarily represents expected growth arising from the business’ position as an incumbent in a fragmented bulk port services industry. None of the goodwill recognized is expected to be deductible for income tax purposes. The recoverable amount of the goodwill has been determined based on the fair value less cost of disposal of the cash-generating unit using a discounted cash flow model whereby the fair value measurement is classified under level 3 on the fair value hierarchy. The key inputs in determining fair value under the discounted cash flow model are the utilization of a discount rate of 15%, a terminal value multiple of 8.9x and a discrete cash flow period of 10 years. The carrying amount of the cash-generating unit was determined to not exceed its recoverable amount.

F-39 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

d) Acquisition of North American gas storage business

On July 19, 2016, Brookfield Infrastructure expanded its gas storage business as it acquired an effective 40% interest in Rockpoint Gas Storage (“Rockpoint”) for consideration of $227 million through a Brookfield-sponsored infrastructure fund. The consideration is comprised of $141 million of Rockpoint senior notes currently owned by Brookfield Infrastructure, $19 million of a working capital credit facility provided to Rockpoint by Brookfield Infrastructure prior to the acquisition date, and cash of $67 million ⁽¹⁾. Concurrently, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective July 19, 2016. Acquisition costs of $11 million were recorded as Other expenses within the Consolidated Statement of Operating Results in 2016.

Consideration transferred

US$ MILLIONS
Cash	$	67
Senior notes(2)	141
Working capital credit facility	19
Total consideration	$	227

(1) The total consideration through the Brookfield-sponsored partnership includes $170 million cash, $357 million in fair value of the Senior notes and $48 million of a working capital facility.

(2) On the date of acquisition of the North American gas storage operation Brookfield Infrastructure held a pre-existing interest in the Senior notes of $117 million, representing the original cost of $104 million and $13 million of income recorded as Other income on the Consolidated Statement of Operating Results in prior periods. On the acquisition date, Brookfield Infrastructure recorded an additional $24 million of Other income on the Consolidated Statement of Operating Results associated with the recycling of accumulated mark-to-market gains on revaluation of the Senior notes, which was equivalent to fair value.

Fair value of assets and liabilities acquired as of July 19, 2016

US$ MILLIONS
Cash and cash equivalents	$	15
Accounts receivable and other	99
Inventory	39
Property, plant and equipment	825
Goodwill	82
Deferred income tax and other liabilities	(148		)
Non-recourse borrowings	(337		)
Net assets acquired before non-controlling interest	575
Non-controlling interest(1)	(348		)
Net assets acquired	$	227

(1) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure and was measured at fair value on the acquisition date.

Brookfield Infrastructure F-40

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Upon acquisition of the North American gas storage business by Brookfield Infrastructure, a deferred tax liability of $82 million was recorded. The deferred income tax liability arose because tax bases of the net assets acquired were lower than their fair values. The inclusion of this liability in the net book value of the acquired business gave rise to goodwill of $82 million, which is recoverable so long as the tax circumstances that gave rise to the goodwill do not change. To date, no such changes have occurred. None of the goodwill recognized is deductible for income tax purposes.

e) Acquisition of Peruvian toll road business

On June 28, 2016, Brookfield Infrastructure expanded its toll road business to Peru as it acquired an effective 17% interest in Rutas de Lima S.A.C. (“Rutas”), through a Brookfield-sponsored infrastructure fund, for total consideration of $127 million, comprised of $118 million of cash (fund total of $400 million funded through our partnership) and an amount payable of $9 million (fund total of $30 million). Concurrently, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective June 28, 2016. Acquisition costs of less than $1 million were recorded as Other expenses within the Consolidated Statement of Operating Results in 2016.

Consideration transferred

US$ MILLIONS
Cash	$	118
Consideration payable(1)	9
Total consideration	$	127

F-41 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Fair value of assets and liabilities acquired as of June 28, 2016

US$ MILLIONS
Cash and cash equivalents(2)	$	115
Accounts receivable and other	121
Property, plant and equipment	6
Intangible assets(3)	973
Goodwill	139
Deferred income tax and other liabilities	(160		)
Non-recourse borrowings	(441		)
Net assets acquired before non-controlling interest	753
Non-controlling interest(4)	(626		)
Net assets acquired	$	127

(1) The purchase price is payable in a series of four payments, one on the date of acquisition as well as three equal payments made 18 months, 27 months and 36 months subsequent to this date and consequently an amount payable of $9 million is recorded as a financial liability within the consolidated statements of financial position as at December 31, 2016.

(2) Includes $114 million of restricted cash primarily related to toll road construction obligations.

(3) Represents a 30 year Peruvian toll road service concession agreement expiring in January 2043. The agreement obligates Rutas to maintain the toll roads to an acceptable standard in exchange for the ability to charge regulated tariffs to the users of the toll road.

(4) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date.

Upon acquisition of the Peruvian toll road business by Brookfield Infrastructure, a deferred tax liability of $139 million was recorded. The deferred income tax liability arose because tax bases of the net assets acquired were lower than their fair values. The inclusion of this liability in the net book value of the acquired business gave rise to goodwill of $139 million, which is recoverable so long as the tax circumstances that gave rise to the goodwill do not change. To date, no such changes have occurred. None of the goodwill recognized is deductible for income tax purposes.

f) Acquisition of Indian toll road business

On March 1, 2016, Brookfield Infrastructure expanded its toll road operations through the acquisition of a 40% effective interest in an Indian toll road business (BIF India Holdings Pte Ltd) from Gammon Infrastructure Projects Limited for consideration of $42 million through a Brookfield-sponsored infrastructure fund. Concurrently, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective March 1, 2016. Acquisition costs of $2 million were recorded as Other expenses within the Consolidated Statement of Operating Results in 2016.

Brookfield Infrastructure F-42

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Consideration transferred

US$ MILLIONS
Cash	$	42
Total consideration	$	42

Fair value of assets and liabilities acquired as of March 1, 2016

US$ MILLIONS
Accounts receivable and other	$	38
Property, plant and equipment	7
Financial assets	142
Intangible assets	147
Deferred income tax assets	10
Accounts payable and other	(38		)
Non-recourse borrowings	(202		)
Net assets acquired before non-controlling interest	104
Non-controlling interest(1)	(62		)
Net assets acquired	$	42

(1) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date which is equal to the consideration paid by the non-controlling interest.

Upon acquisition of the Indian toll road business by Brookfield Infrastructure, a deferred tax asset of $10 million was recorded. The deferred tax assets relate to tax losses and are recognized based on management’s best estimate that it is probable that there will be sufficient taxable income against which to utilize the benefits of these tax losses.

g) Supplemental information

Had the acquisitions of the Brazilian regulated gas transmission business and individually insignificant business combinations been effective January 1, 2017, the revenue and net income of Brookfield Infrastructure would have been $3,911 million (unaudited) and $751 million (unaudited), respectively, for the year ended December 31, 2017.

In determining the pro-forma revenue and net income attributable to our partnership, management has:

• Calculated depreciation of property, plant and equipment and amortization of intangible assets acquired on the basis of the fair values at the time of the business combination rather than the carrying amounts recognized in the pre-acquisition financial statements and;

• Based borrowing costs on the funding levels, credit ratings and debt and equity position of Brookfield Infrastructure after the business combination.

F-43 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 6.  FAIR VALUE OF FINANCIAL INSTRUMENTS

The fair value of a financial instrument is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair values are determined by reference to quoted bid or ask prices, as appropriate. Where bid and ask prices are unavailable, the closing price of the most recent transaction of that instrument is used. In the absence of an active market, fair values are determined based on prevailing market rates such as bid and ask prices, as appropriate for instruments with similar characteristics and risk profiles or internal or external valuation models, such as option pricing models and discounted cash flow analyses, using observable market inputs.

Fair values determined using valuation models require the use of assumptions concerning the amount and timing of estimated future cash flows and discount rates. In determining those assumptions, Brookfield Infrastructure looks primarily to external readily observable market inputs such as interest rate yield curves, currency rates, and price and rate volatilities as applicable. The fair value of interest rate swap contracts which form part of financing arrangements is calculated by way of discounted cash flows using market interest rates and applicable credit spreads.

Classification of Financial Instruments

Financial instruments classified as fair value through profit or loss are carried at fair value on the Consolidated Statements of Financial Position. Changes in the fair values of financial instruments classified as fair value through profit or loss are recognized in profit or loss. Mark-to-market adjustments on hedging items for those in an effective hedging relationship and changes in the fair value of available-for-sale securities are recognized in other comprehensive income.

Brookfield Infrastructure F-44

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Carrying Value and Fair Value of Financial Instruments

The following table provides the break down of financial instruments and their associated financial instrument classifications as at December 31, 2017:

US$ MILLIONS	FVTPL		Available for sale securities		Loans and Receivables/ Other Liabilities
Financial Instrument Classification	(Fair Value)		(Fair Value through OCI)		(Amortized Cost)		Total
MEASUREMENT BASIS
Financial assets
Cash and cash equivalents	$	—	$	—	$	374	$	374
Accounts receivable and other	—		—		838		838
Financial assets (current and non-current)(1)	608		57		172		837
Marketable securities	—		85		—		85
Total	$	608	$	142	$	1,384	$	2,134
Financial liabilities
Corporate borrowings	$	—	$	—	$	2,101	$	2,101
Non-recourse borrowings (current and non-current)	—		—		8,063		8,063
Accounts payable and other	—		—		864		864
Preferred shares(2)	—		—		20		20
Financial liabilities (current and non-current)(1)	440		—		873		1,313
Total	$	440	$	—	$	11,921	$	12,361

(1) Derivative instruments which are elected for hedge accounting totaling $464 million are included in Financial assets and $146 million of derivative instruments are included in Financial liabilities.

(2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

F-45 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The following table provides the break down of financial instruments and their associated financial instrument classifications as at December 31, 2016:

US$ MILLIONS	FVTPL		Available for sale securities		Loans and Receivables/ Other Liabilities
Financial Instrument Classification	(Fair Value)		(Fair Value through OCI)		(Amortized Cost)		Total
MEASUREMENT BASIS
Financial assets
Cash and cash equivalents	$	—	$	—	$	786	$	786
Accounts receivable and other	—		—		485		485
Financial assets (current and non-current)(1)	893		12		233		1,138
Marketable securities	—		3		—		3
Total	$	893	$	15	$	1,504	$	2,412
Financial liabilities
Corporate borrowings	$	—	$	—	$	1,002	$	1,002
Non-recourse borrowings (current and non-current)	—		—		7,324		7,324
Accounts payable and other	—		—		712		712
Preferred shares(2)	—		—		20		20
Financial liabilities (current and non-current)(1)	381		—		—		381
Total	$	381	$	—	$	9,058	$	9,439

(1) Derivative instruments which are elected for hedge accounting totaling $722 million are included in Financial assets and $185 million of derivative instruments are included in Financial liabilities.

(2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

The following table provides the carrying values and fair values of financial instruments as at December 31, 2017 and December 31, 2016:

	Dec. 31, 2017				Dec. 31, 2016
US$ MILLIONS	Carrying Value		Fair Value		Carrying Value		Fair Value
Financial assets
Cash and cash equivalents	$	374	$	374	$	786	$	786
Accounts receivable and other	838		838		485		485
Financial assets (current and non-current)	837		837		1,138		1,138
Marketable securities	85		85		3		3
Total	$	2,134	$	2,134	$	2,412	$	2,412

Brookfield Infrastructure F-46

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

	Dec. 31, 2017				Dec. 31, 2016
US$ MILLIONS	Carrying Value		Fair Value		Carrying Value		Fair Value
Financial liabilities
Corporate borrowings(1)	$	2,101	$	2,113	$	1,002	$	1,023
Non-recourse borrowings(2)	8,063		8,392		7,324		7,478
Accounts payable and other (current and non-current)	864		864		712		712
Preferred shares(3)	20		20		20		20
Financial liabilities (current and non-current)	1,313		1,313		381		381
	$	12,361	$	12,702	$	9,439	$	9,614

(1) Corporate borrowings is classified under level 1 of the fair value hierarchy; quoted prices in an active market are available.

(2) Non-recourse borrowings are classified under level 2 of the fair value hierarchy with the exception of certain borrowings at the U.K. port operation, Chilean toll road and Peruvian toll road which are classified under level 1. For level 2 fair values, future cash flows are estimated based on observable forward interest rates at the end of the reporting period.

(3) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

Hedging Activities

Brookfield Infrastructure uses derivatives and non-derivative financial instruments to manage or maintain exposures to interest and currency risks. For certain derivatives which are used to manage exposures, Brookfield Infrastructure determines whether hedge accounting can be applied. When hedge accounting can be applied, a hedge relationship can be designated as a fair value hedge, cash flow hedge or a hedge of foreign currency exposure of a net investment in a foreign operation with a functional currency other than the U.S. dollar. To qualify for hedge accounting the derivative must be highly effective in accomplishing the objective of offsetting changes in the fair value or cash flows attributable to the hedged risk both at inception and over the life of the hedge. If it is determined that the derivative is not highly effective as a hedge, hedge accounting is discontinued prospectively.

Cash Flow Hedges

Brookfield Infrastructure uses interest rate swaps to hedge the variability in cash flows related to a variable rate asset or liability and highly probably forecast issuances of debt. The settlement dates coincide with the dates on which the interest is payable on the underlying debt, and the amount accumulated in equity is reclassified to profit or loss over the period that the floating rate interest payments on debt affect profit or loss. For the year ended December 31, 2017, pre-tax net unrealized gains of $50 million (2016: losses of $14 million, 2015: losses of $41 million) were recorded in other comprehensive income for the effective portion of the cash flow hedges. As at December 31, 2017, there was a net derivative asset balance of $447 million relating to derivative contracts designated as cash flow hedges (2016: asset balance of $464 million).

F-47 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Net Investment Hedges

Brookfield Infrastructure uses foreign exchange contracts and foreign currency denominated debt instruments to manage its foreign currency exposures arising from net investments in foreign operations having a functional currency other than the U.S. dollar. For the year ended December 31, 2017, unrealized net losses of $202 million (2016: gains of $70 million, 2015: losses of $131 million) were recorded in other comprehensive income for the effective portion of hedges of net investments in foreign operations. Further, Brookfield Infrastructure recognized a $64 million loss (2016: gain of $99 million, 2015: gain of $220 million) in other comprehensive income relating to the net settlement of foreign exchange contracts in the period. As at December 31, 2017, there was a net unrealized derivative liability balance of $129 million relating to derivative contracts designated as net investment hedges (2016: net unrealized derivative asset balance of $73 million).

Fair Value Hierarchical Levels—Financial Instruments

Fair value hierarchical levels are directly determined by the amount of subjectivity associated with the valuation inputs of these assets and liabilities, and are as follows:

Level 1	—	Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date.
Level 2	—	Inputs other than quoted prices included in Level 1 are either directly or indirectly observable for the asset or liability through correlation with market data at the measurement date and for the duration of the instrument’s anticipated life. Fair valued assets and liabilities that are included in this category are primarily certain derivative contracts and other financial assets carried at fair value in an inactive market.
Level 3	—	Inputs reflect management’s best estimate of what market participants would use in pricing the asset or liability at the measurement date. Consideration is given to the risk inherent in the valuation technique and the risk inherent in the inputs to determining the estimate. Fair valued assets and liabilities that are included in this category are interest rate swap contracts, derivative contracts, certain equity securities carried at fair value which are not traded in an active market and the non-controlling interest’s share of net assets of limited life funds.

Brookfield Infrastructure F-48

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The fair value of our partnership’s financial assets and financial liabilities are measured at fair value on a recurring basis. The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s financial assets and financial liabilities:

US$ MILLIONS	Fair value hierarchy	Dec. 31, 2017		Dec. 31, 2016
Marketable securities	Level 1(1)	$	85	$	3
Foreign currency forward contracts	Level 2(2)
Financial asset		$	236	$	210
Financial liability		196		48
Interest rate swaps & other	Level 2(2)
Financial asset		$	381	$	653
Financial liability		155		287
Other contracts
Financial asset	Level 3(3)	$	48	$	42
Financial liability	Level 3(3)	89		46

(1) Valuation technique: Quoted bid prices in an active market.

(2) Valuation technique: Discounted cash flow. Future cash flows are estimated based on forward exchange rates (from observable forward exchange rates at the end of the reporting period) and contract forward rates, discounted at a rate that reflects our credit risk and the credit risk of various counterparties.

(3) Valuation technique: Discounted cash flow. Future cash flows primarily driven by freight volumes and the use of assumptions concerning the amount and timing of estimated future cash flows and discount rates.

Assets and liabilities measured at fair value on a recurring basis include $750 million (2016: $908 million) of financial assets and $440 million (2016: $381 million) of financial liabilities which are measured at fair value using valuation inputs based on management’s best estimates.

During the year, no transfers were made between level 1 and 2 or level 2 and 3. The following table categorizes financial assets and liabilities, which are carried at fair value, based upon the level of input.

	Dec. 31, 2017						Dec. 31, 2016
US$ MILLIONS	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Financial assets
Marketable securities	$	85	$	—	$	—	$	3	$	—	$	—
Financial assets (current and non-current)	—		617		48		—		863		42
Financial liabilities
Financial liabilities (current and non-current)	$	—	$	351	$	89	$	—	$	335	$	46

F-49 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 7.  CASH AND CASH EQUIVALENTS

US$ MILLIONS	2017		2016
Cash	$	258	$	652
Restricted cash(1)	33		84
Cash equivalents(2)	83		50
Total cash and cash equivalents	$	374	$	786

(1) Restricted cash primarily relates to our partnership’s financing arrangements, including debt service accounts.

(2) Short-term, highly liquid investments that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value.

NOTE 8.  FINANCIAL ASSETS

US$ MILLIONS	2017		2016
Current:
Foreign currency forward contracts	$	10	$	132
Loans and receivables	43		73
Marketable securities	85		3
Other	54		33
Total current	$	192	$	241
Non-current:
Cross currency interest rate swaps	$	243	$	589
Loans and receivables	210		172
Foreign currency forward contracts	226		78
Other	51		61
Total non-current	$	730	$	900

NOTE 9.  ACCOUNTS RECEIVABLE AND OTHER

US$ MILLIONS	2017		2016
Current:
Accounts receivable	$	738	$	395
Prepayments & other assets	100		109
Total current	$	838	$	504
Non-current:
Tax recovery receivables	$	52	$	55
Other assets	221		110
Total non-current	$	273	$	165

Brookfield Infrastructure F-50

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 10.  INVENTORY

US$ MILLIONS	2017		2016
Current:
Natural gas inventory	$	84	$	82
Raw materials and consumables	24		19
Carrying amount of inventories	$	108	$	101

During the year ended December 31, 2017, Brookfield Infrastructure recognized $418 million (2016: $154 million, 2015: $nil) worth of inventories as an expense in the Consolidated Statements of Operating Results and $nil (2016: $nil, 2015: $nil) relating to impairments of inventory.

NOTE 11.  INVESTMENT IN ASSOCIATES AND JOINT VENTURES

The following table presents the ownership interest and carrying values of Brookfield Infrastructure’s investments in associates and joint ventures:

	Name of entity	Ownership and Voting Interest				Carrying Value
US$ MILLIONS		Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2017		Dec. 31, 2016
Brazilian toll road(1),(2)	Arteris S.A.	45	%	49	%	$	1,715	$	1,505
North American natural gas transmission operation(3),(4)	Natural Gas Pipeline of America LLC	50	%	50	%	1,013		806
Chilean electricity transmission operation(5)	Transelec S.A., held through ETC Transmission Holdings, S.L.	28	%	28	%	930		699
European telecommunications infrastructure operations	TDF Infrastructure SAS	21	%	21	%	614		536
Brazilian rail business	VLI S.A.	11	%	11	%	436		376
Australian ports operation(6)	Patrick Terminals, held through PTH No 1 Pty Ltd	13	%	13	%	191		181
Other(7)		11%-50%		11%-50%		673		624
Total						$	5,572	$	4,727

F-51 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The following table represents the change in the balance of investments in associates and joint ventures:

US$ MILLIONS	2017			2016
Balance at beginning of year	$	4,727		$	2,973
Share of earnings for the year(3)	118			248
Foreign currency translation and other	167			219
Share of other comprehensive income	183			225
Distributions	(66		)	(46		)
Disposition of interest(1)	(177		)	—
Acquisitions(2),(4),(5)	620			1,108
Balance at end of year	$	5,572		$	4,727

\

(1) In August 2017, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund, reorganized the holding entities of its investment in the Brazilian toll road operation. This transaction resulted in no gain or loss being recorded within the Consolidated Statements of Operating Results. The reorganization resulted in Brookfield Infrastructure no longer consolidating an 8% interest of the investment attributable to an institutional partner. The reorganization concurrently reduced the investments in associates and joint venture and non-controlling interest partnership capital balances by $177 million during the third quarter of 2017.

(2) Throughout 2017, Brookfield Infrastructure, alongside an institutional partner, injected $349 million into the Brazilian toll road operation for growth capital expenditure requirements increasing our partnership’s ownership interest to 45%.

(3) Share of earnings for the year ended December 31, 2016 includes $195 million of non-recurring gains primarily related to our transport and energy operations.

(4) In May 2017, Brookfield Infrastructure and its partner in its North American natural gas transmission operation each injected $200 million into the business to pay down operating level debt. A similar transaction was completed in April 2016 by Brookfield Infrastructure and its partner in the amount of $312 million.

(5) During December 2017, our partnership signed an agreement to sell our ownership in ETC Transmission Holdings. Completion of this transaction is subject to certain closing conditions, third party consents and regulatory approvals.

(6) In August 2016, Brookfield Infrastructure expanded its ports operations in Australia as it acquired an effective 13% interest in PTH No 1 Pty Ltd (“Patrick”) through a Brookfield-sponsored infrastructure fund, alongside institutional partners, for total consideration of $202 million. The Brookfield consortium maintains 50% of the voting rights of Patrick in a joint venture with Qube Holdings Limited, along with its institutional partners. Brookfield Infrastructure has joint control through its position in the business. Accordingly, Brookfield Infrastructure equity accounts for the entity.

(7) Other includes our partnership’s Texas electricity transmission project, Brazil electricity transmission operation, European port operation, North American west coast container terminal, U.S. gas storage operation and other investments in associates and joint ventures held through consolidated subsidiaries.

Brookfield Infrastructure F-52

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The following tables present the gross assets and liabilities of Brookfield Infrastructure’s investments in associates and joint ventures:

	As at December 31, 2017
	Total														Attributable to
US$ MILLIONS	Current Assets		Non- Current Assets		Total Assets		Current Liabilities		Non- Current Liabilities		Total Liabilities		Total Net Assets		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	304	$	5,769	$	6,073	$	602	$	2,102	$	2,704	$	3,369	$	1,654	$	1,715
North American natural gas transmission operation	139		4,741		4,880		139		2,716		2,855		2,025		1,012		1,013
Chilean electricity transmission operation	280		7,122		7,402		181		3,874		4,055		3,347		2,417		930
European telecommunications infrastructure operation	464		6,281		6,745		561		2,968		3,529		3,216		2,602		614
Brazilian rail business	743		6,131		6,874		515		2,405		2,920		3,954		3,518		436
Australian ports operation	198		2,281		2,479		24		1,332		1,356		1,123		932		191
Other	694		5,228		5,922		865		2,291		3,156		2,766		2,093		673
Total	$	2,822	$	37,553	$	40,375	$	2,887	$	17,688	$	20,575	$	19,800	$	14,228	$	5,572

	As at December 31, 2016
	Total														Attributable to
US$ MILLIONS	Current Assets		Non- Current Assets		Total Assets		Current Liabilities		Non- Current Liabilities		Total Liabilities		Total Net Assets		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	263	$	4,977	$	5,240	$	823	$	1,665	$	2,488	$	2,752	$	1,247	$	1,505
North American natural gas transmission operation	122		5,767		5,889		1,353		2,925		4,278		1,611		805		806
Chilean electricity transmission operation	221		5,519		5,740		142		3,234		3,376		2,364		1,665		699
European telecommunications infrastructure operation	328		5,437		5,765		443		2,528		2,971		2,794		2,258		536
Brazilian rail business	460		5,265		5,725		674		1,645		2,319		3,406		3,030		376
Australian ports operation	171		2,166		2,337		66		1,229		1,295		1,042		861		181
Other	360		4,378		4,738		515		1,827		2,342		2,396		1,772		624
Total	$	1,925	$	33,509	$	35,434	$	4,016	$	15,053	$	19,069	$	16,365	$	11,638	$	4,727

F-53 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The following tables present the gross amounts of revenue, net income, other comprehensive income from Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2017, 2016, and 2015:

	Year ended December 31, 2017
	Total									Attributable to
US$ MILLIONS	Revenue		Net Income		OCI			Total Comprehensive Income		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	928	$	95	$	(39	)	$	56	$	19	$	37
North American natural gas transmission operation	681		15		(1		)	14		7		7
Chilean electricity transmission operation	441		37		806			843		609		234
European telecommunications infrastructure operation	783		58		435			493		409		84
Brazilian rail business	1,409		56		490			546		486		60
Australian ports operation	418		19		78			97		80		17
Other	1,809		98		(19		)	79		55		24
Total	$	6,469	$	378	$	1,750		$	2,128	$	1,665	$	463

	Year ended December 31, 2016
	Total											Attributable to
US$ MILLIONS	Revenue		Net Income			OCI			Total Comprehensive Income			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	766	$	185		$	382		$	567		$	275		$	292
North American natural gas transmission operation	573		133			5			138			69			69
Chilean electricity transmission operation	433		38			217			255			184			71
European telecommunications infrastructure operation	767		121			376			497			393			104
Brazilian rail business	1,024		70			976			1,046			931			115
Australian ports operation	164		(31		)	(81		)	(112		)	(97		)	(15		)
Other	1,091		54			280			334			278			56
Total	$	4,818	$	570		$	2,155		$	2,725		$	2,033		$	692

	Year ended December 31, 2015
	Total											Attributable to
US$ MILLIONS	Revenue		Net Income			OCI			Total Comprehensive Income			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	758	$	(12	)	$	(1,118	)	$	(1,130	)	$	(778	)	$	(352	)
North American natural gas transmission operation	522		(29		)	—			(29		)	(19		)	(10		)
Chilean electricity transmission operation	432		75			(145		)	(70		)	(51		)	(19		)
European telecommunications infrastructure operation	579		62			72			134			104			30
Brazilian rail business	1,074		136			(668		)	(532		)	(474		)	(58		)
Other	947		94			212			306			241			65
Total	$	4,312	$	326		$	(1,647	)	$	(1,321	)	$	(977	)	$	(344	)

As at December 31, 2017 and 2016, none of the associates or joint ventures have quoted prices in an active market.

Brookfield Infrastructure F-54

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The following tables present the cash flow activities of Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2017, 2016, and 2015:

	Year ended December 31, 2017
	Total										Attributable to
US$ MILLIONS	Operating		Investing			Financing			Total Cash Flows		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	345	$	(1,046	)	$	800		$	99	$	57	$	42
North American natural gas transmission operation	258		(169		)	(79		)	10		5		5
Chilean electricity transmission operation	256		(240		)	14			30		22		8
European telecommunications infrastructure operation	338		(226		)	(58		)	54		43		11
Brazilian rail business	472		(458		)	292			306		272		34
Australian ports operation	80		(15		)	(22		)	43		40		3
Other	284		(729		)	538			93		80		13
Total	$	2,033	$	(2,883	)	$	1,485		$	635	$	519	$	116

	Year ended December 31, 2016
	Total											Attributable to
US$ MILLIONS	Operating		Investing			Financing			Total Cash Flows			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	249	$	(491	)	$	212		$	(30	)	$	(19	)	$	(11	)
North American natural gas transmission operation	163		(170		)	2			(5		)	(2		)	(3		)
Chilean electricity transmission operation	273		(207		)	(27		)	39			28			11
European telecommunications infrastructure operation	325		(323		)	(83		)	(81		)	(64		)	(17		)
Brazilian rail business	337		(780		)	272			(171		)	(152		)	(19		)
Australian ports operation	15		(391		)	433			57			47			10
Other	142		(229		)	71			(16		)	(15		)	(1		)
Total	$	1,504	$	(2,591	)	$	880		$	(207	)	$	(177	)	$	(30	)

	Year ended December 31, 2015
	Total											Attributable to
US$ MILLIONS	Operating		Investing			Financing			Total Cash Flows			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	194	$	(534	)	$	59		$	(281	)	$	(194	)	$	(87	)
North American natural gas transmission operation	98		(157		)	10			(49		)	(32		)	(17		)
Chilean electricity transmission operation	274		(122		)	(197		)	(45		)	(32		)	(13		)
European telecommunications infrastructure operation	253		(101		)	(19		)	133			106			27
Brazilian rail business	309		(929		)	588			(32		)	(29		)	(3		)
Other	154		(89		)	(36		)	29			18			11
Total	$	1,282	$	(1,932	)	$	405		$	(245	)	$	(163	)	$	(82	)

F-55 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE12.  PROPERTY, PLANT AND EQUIPMENT

US$ MILLIONS	Utility Assets			Transport Assets			Energy Assets			Total Assets
Gross Carrying Amount:
Balance at January 1, 2016	$	2,945		$	2,150		$	1,457		$	6,552
Additions, net of disposals	399			76			89			564
Non-cash (disposals) additions	(31		)	3			—			(28		)
Acquisitions through business combinations(1)	—			242			825			1,067
Net foreign currency exchange differences	(418		)	(109		)	9			(518		)
Balance at December 31, 2016	$	2,895		$	2,362		$	2,380		$	7,637
Additions, net of disposals	349			104			95			548
Non-cash disposals	—			—			(14		)	(14		)
Acquisitions through business combinations(1)	—			—			100			100
Net foreign currency exchange differences	227			191			68			486
Balance at December 31, 2017	$	3,471		$	2,657		$	2,629		$	8,757
Accumulated depreciation:
Balance at January 1, 2016	$	(291	)	$	(418	)	$	(159	)	$	(868	)
Depreciation expense	(128		)	(127		)	(99		)	(354		)
Non-cash disposals	—			4			—			4
Net foreign currency exchange differences	36			24			—			60
Balance at December 31, 2016	$	(383	)	$	(517	)	$	(258	)	$	(1,158	)
Depreciation expense	(118		)	(147		)	(117		)	(382		)
Disposals	19			21			—			40
Non-cash disposals	—			—			5			5
Net foreign currency exchange differences	(28		)	(44		)	(13		)	(85		)
Balance at December 31, 2017	$	(510	)	$	(687	)	$	(383	)	$	(1,580	)
Accumulated fair value adjustments:
Balance at January 1, 2016	$	945		$	777		$	226		$	1,948
Fair value adjustments	185			25			125			335
Net foreign currency exchange differences	(87		)	(20		)	1			(106		)
Balance at December 31, 2016	$	1,043		$	782		$	352		$	2,177
Fair value adjustments	137			24			257			418
Net foreign currency exchange differences	78			67			20			165
Balance at December 31, 2017	$	1,258		$	873		$	629		$	2,760
Net book value:
December 31, 2017	$	4,219		$	2,843		$	2,875		$	9,937
December 31, 2016	$	3,555		$	2,627		$	2,474		$	8,656

(1) See Note 5, Acquisition of Business for additional information.

Brookfield Infrastructure F-56

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The fair value of our partnership’s property, plant, and equipment is measured at fair value on a recurring basis with an effective date of revaluation for all asset classes of December 31, 2017 and 2016. Brookfield Infrastructure determined fair value under the income method. Assets under development were revalued where fair value could be reliably measured.

The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s property, plant and equipment assets, categorized by segment.

	Dec. 31, 2017				Dec. 31, 2016
Segment	Valuation Technique	Discount Rate	Terminal Value Multiple	Investment Horizon	Valuation Technique	Discount Rate	Terminal Value Multiple	Investment Horizon
Utilities	Discounted cash flow model	7% to 12%	7x to 21x	10 to 20 yrs	Discounted cash flow model	7% to 12%	7x to 18x	10 to 20 yrs
Transport	Discounted cash flow model	10% to 15%	9x to 14x	10 to 20 yrs	Discounted cash flow model	10% to 17%	8x to 14x	10 to 20 yrs
Energy	Discounted cash flow model	12% to 15%	8x to 13x	10 yrs	Discounted cash flow model	9% to 14%	10x to 12x	10 yrs

An increase in the discount rate would lead to a decrease in the fair value of property, plant and equipment. Conversely, an increase to the terminal value multiple would increase the fair value of property, plant and equipment. Our partnership has classified all property, plant and equipment under level 3 of the fair value hierarchy.

At December 31, 2017, Brookfield Infrastructure carried out an assessment of the fair value of its Utilities property, plant and equipment, resulting in a gain from revaluation of $137 million (2016: $185 million) which was recognized in revaluation surplus in the Consolidated Statements of Comprehensive Income. Key drivers behind the revaluation gain recorded include; growth in underlying cash flows at our U.K. regulated distribution business associated with new connections made during the year and a modest increase in our terminal value assumption commensurate with observable market valuations for regulated utility businesses in mature geographies.

At December 31, 2017, Brookfield Infrastructure carried out an assessment of the fair value of its Transport property, plant and equipment. A gain from revaluation of $24 million (2016: $25 million) was recognized in revaluation surplus in the Consolidated Statements of Comprehensive Income. Underlying valuation assumptions in the Transport segment remain relatively consistent with the prior year. The reduction in the discount rate range was associated with successful de-risking activities executed during the first full year of ownership at our Australian ports operation.

At December 31, 2017, Brookfield Infrastructure carried out an assessment of the fair value of its Energy property, plant and equipment. A gain from revaluation of $257 million (2016: $125 million) was recognized in revaluation surplus in the Consolidated Statements of Comprehensive Income. The revaluation gain was primarily associated with growth in underlying cash flows at our North American district energy operations associated with new customer connections during the last 12 months and a more robust pipeline of growth opportunities underway in the business. The increase in discount rate and reduction in terminal value assumptions for the segment relate to our Australian district energy operation where we have updated the valuation assumptions in response to the inclusion of a higher level of organic growth projects that are in the early stages of development.

F-57 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The following table summarizes the carrying amount of property, plant and equipment that would have been recognized had assets been carried under the cost model.

US$ MILLIONS	Dec. 31, 2017		Dec. 31, 2016
Utilities	$	2,961	$	2,512
Transport	1,970		1,845
Energy	2,246		2,122

NOTE13.  INTANGIBLE ASSETS

US$ MILLIONS	2017			2016
Cost	$	10,470		$	4,732
Accumulated amortization	(576		)	(267		)
Net intangible assets	$	9,894		$	4,465

Intangible assets are allocated to the following cash generating units:

US$ MILLIONS	Dec. 31, 2017		Dec. 31, 2016
Brazilian regulated gas transmission operation	$	5,134	$	—
Australian regulated terminal	1,957		1,817
Peruvian toll roads	1,144		1,049
Chilean toll roads	1,100		1,054
U.K. port operation	289		265
Indian toll roads	130		136
Other	140		144
Total	$	9,894	$	4,465

The intangible assets at Brookfield Infrastructure’s Brazilian regulated gas transmission operation, Australian regulated terminal operation, and Chilean, Peruvian and Indian toll roads relate to service concession arrangements.

The terms and conditions of concession arrangements at the Brazilian regulated gas transmission operation are regulated by the Agência Nacional do Petróleo, Gás Natural e Biocombustíveis (“ANP”). Each gas transportation agreement (“GTA”) took into account a return on regulatory asset base (“RAB”) , and the tariffs were calculated on an inflation adjusted regulatory weighted average cost of capital (“WACC”) fixed for the GTA life. Upon expiry of the authorizations, the assets shall be returned to the government and subject to concession upon public bidding. These assets operate as authorizations that expire between 2039 and 2041.

The terms and conditions of access to the Australian regulated terminal’s services, including tariffs that can be charged to the users, are regulated by the Queensland Competition Authority. Brookfield Infrastructure’s Australian regulated terminal operation has Standard Access Agreements with the users of the terminal which entails 100% take-or-pay contracts at a designated tariff rate based on the asset value. The concession arrangement has an expiration date of 2051 with an option to extend the arrangement for an additional 49 years.

Brookfield Infrastructure F-58

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The terms and conditions of the Chilean toll roads concession, including tariffs that can be charged to the users and the duties to be performed by the operator, are regulated by the Ministerio de Obras Publicas (“MOP”). The service concession provides the operator the right to charge a tariff to vehicles which use the road over the term of the concession in exchange for operating the road, including preserving the road based on a defined maintenance and construction schedule. Tariffs are adjusted annually for the Chilean Consumer Price Index plus 3.5%, in addition to congestion charges which may be levied should specified traffic levels be reached. The concession arrangement has an expiration date of 2033 at which point the underlying concessions assets will be returned to the MOP.

The terms and conditions of the Peruvian toll roads concession, including tariffs that can be charged to the users and the duties to be performed by the operator, are regulated by the Municipalidad Metropolitana de Lima (“MML”) and its municipal arm, Fondo Metropolitano de Inversiones. The service concession provides the operator the right to charge a tariff to vehicles which use the road network over the life of the concession in exchange for the design, construction, improvement, maintenance and operation of the road network. Until December 2018, tariffs are increased by fixed amounts and on specified dates, and thereafter, are adjusted annually for the Lima Metropolitana Consumer Price Index. For the year ended December 31, 2017, revenue and profit related to construction contracts were $31 million (2016: $66 million, 2015: $nil) and $nil (2016: $nil, 2015: $nil), respectively. Due to construction services relating to the concession arrangement $35 million (2016: $20 million, 2015: $nil) of borrowing costs were capitalized as an intangible asset, based on the stage of project completion. The concession arrangement has an expiration date of 2043 at which point the underlying concession assets will be returned to the MML.

The intangible asset at Brookfield Infrastructure’s U.K. port operation relates to a conservancy right. As a right in perpetuity issued by the Statutory Harbour Authority in the U.K., the conservancy right is classified as having an indefinite life, and is subject to an annual impairment review.

The terms and conditions of Mumbai Nasik Indian toll road concession, including tariffs that can be charged to the users and the duties to be performed by the operator, are regulated by National Highways Authority of India (“NHAI”). The Service Concession Agreement provides the operator the right to charge a tariff to vehicles which use the road over the term of the concession in exchange for operating the road, including preserving the road based on a defined maintenance schedule. Tariffs are revised annually for the Indian Wholesale Price Index. The Concession Arrangement has an expiration date of 2027 at which point the underlying concessions assets will be returned to NHAI.

The carrying value as at December 31, 2017, of Brookfield Infrastructure’s indefinite lived intangibles is $297 million (2016: $274 million).

F-59 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The following table presents the change in the cost balance of intangible assets:

US$ MILLIONS	2017		2016
Cost at beginning of the year	$	4,732	$	3,485
Additions, net of disposals	79		116
Acquisitions through business combinations(1)	5,515		1,189
Non-cash additions	18		—
Foreign currency translation	126		(58		)
Cost at end of year	$	10,470	$	4,732

(1) See Note 5, Acquisition of Business for additional information.

The following table presents the accumulated amortization for Brookfield Infrastructure’s intangible assets:

US$ MILLIONS	2017			2016
Accumulated amortization at beginning of year	$	(267	)	$	(189	)
Amortization	(289		)	(93		)
Foreign currency translation	(20		)	15
Accumulated amortization at end of year	$	(576	)	$	(267	)

NOTE 14.  GOODWILL

The following table presents the carrying amount for Brookfield Infrastructure’s goodwill:

US$ MILLIONS	2017			2016
Balance at beginning of the year	$	502		$	79
Acquisitions through business combinations(1)	815			431
Foreign currency translation and other	(16		)	(8		)
Balance at end of the year	$	1,301		$	502

(1) See Note 5, Acquisition of Business for additional information.

Brookfield Infrastructure F-60

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 15.  INVESTMENT PROPERTIES

The following table presents the carrying amount for Brookfield Infrastructure’s investment properties:

US$ MILLIONS	2017		2016
Balance at beginning of the year	$	154	$	153
Additions, net of disposals	—		3
Non-cash additions	—		10
Fair value adjustments	23		12
Foreign currency translation	15		(24		)
Balance at end of the year	$	192	$	154

For the year ended December 31, 2017, fair value adjustments of $23 million were recognized for the U.K. port operation (2016: $12 million).

Investment properties are measured at fair value on a recurring basis and the effective date of revaluation is December 31, 2017 and 2016. The fair value of our partnership’s investment properties are determined by management of our partnership with due consideration given to other relevant market conditions. The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s investment property. Our partnership has classified all assets below under level 3 of the fair value hierarchy:

Segment	Valuation technique	Significant unobservable inputs	Range of inputs
Transport	Direct Income Capitalization	Capitalization Rate	6% to 14%

An increase in the capitalization rate would lead to a decrease in the fair value of investment property, with the opposite impact for a decrease in the capitalization rate.

F-61 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 16.  ACCOUNTS PAYABLE AND OTHER

US$ MILLIONS	Note	2017		2016
Current:
Accounts payable(1)		$	246	$	266
Accrued & other liabilities		400		274
Deferred revenue	(i)	159		108
Provisions		59		64
Total current		$	864	$	712
Non-current:
Deferred revenue	(i)	$	300	$	293
Pension liabilities(2)		100		98
Provisions		95		41
Other liabilities		298		148
Total non-current		$	793	$	580

(1) The average credit period on purchases of goods and services is 30 days. No interest is incurred on trade creditors. Brookfield Infrastructure has financial risk management policies in place to ensure that all payables are paid within the pre-agreed credit terms.

(2) See Note 31, Retirement Benefit Plans for further details.

Brookfield Infrastructure’s exposure to currency and liquidity risk related to trade and other payables is disclosed in Note 34, Financial Risk Management.

(i) Deferred revenue

Deferred revenue relates primarily to cash contributions from third parties to build or upgrade existing network capabilities at Brookfield Infrastructure’s Australian rail operation and for future natural gas and electricity connections at Brookfield Infrastructure’s U.K. regulated distribution operation. The deferred revenue is recorded on receipt of cash payments and recognized as revenue over the life of the contracted track access or connections arrangement.

Brookfield Infrastructure F-62

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 17.  FINANCIAL LIABILITIES

US$ MILLIONS	2017		2016
Current:
Foreign currency forward contracts	$	150	$	47
Other financial liabilities	87		182
Total current financial liabilities	$	237	$	229
Non-current:
Interest rate swaps	$	9	$	34
Inflation swaps	84		97
Deferred consideration(1)	916		—
Other financial liabilities	67		21
Total non-current financial liabilities	$	1,076	$	152

(1) The deferred consideration is related to the acquisitions completed during 2017. See Note 5, Acquisition of Businesses for further details.

F-63 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 18.  BORROWINGS

(a) Corporate Borrowings

Brookfield Infrastructure has a $1.975 billion senior unsecured revolving credit facility used for general working capital including acquisitions. The $1.975 billion is available on a revolving basis for the full term of the facility. All amounts outstanding under this facility will be repayable on June 30, 2022. All obligations of Brookfield Infrastructure under the facility are guaranteed by our partnership. Loans under this facility accrue interest at a floating rate based on LIBOR plus 1.20%. Brookfield Infrastructure is required to pay an unused commitment fee under the facility of 18 basis points per annum. As at December 31, 2017, draws on the credit facility were $789 million (2016: $nil) and $106 million of letters of credit were issued (2016: $46 million). Subsequent to year end, Brookfield Infrastructure cancelled $59 million letters of credit.

	Maturity	Annual Rate	Currency	2017		2016
Corporate revolving credit facility	June 30, 2022	LIBOR plus 1.2%	US$	789		—
Medium Term Notes(1):
Current:
Public - Canadian	October 10, 2017	3.5%	C$	—		295
Public - Canadian	October 30, 2018	3.0%	C$	99		93
Non-Current:
Public - Canadian	October 30, 2020	3.5%	C$	298		279
Public - Canadian	March 11, 2022	3.5%	C$	358		335
Public - Canadian	February 22, 2024	3.3%	C$	239		—
Public - Canadian	February 22, 2024	3.3%	C$	318		—
Total				$	2,101	$	1,002

(1) See Note 19, Subsidiary Public Issuers for further details.

On April 17, 2017, Brookfield Infrastructure Finance ULC, a wholly-owned subsidiary of Brookfield Infrastructure, issued C$400 million or $309 million of medium-term notes maturing February 22, 2024 with a coupon of 3.3%. The notes were issued at a premium with an effective interest rate of 3.1% per annum, which was swapped into U.S. dollars on a matched maturity basis at an all-in rate of 4.0%.

On February 22, 2017, Brookfield Infrastructure Finance ULC, a wholly-owned subsidiary of Brookfield Infrastructure, issued C$300 million or $228 million of medium-term notes maturing February 22, 2024 with a coupon of 3.3%, which was swapped into U.S. dollars on a matched maturity basis at an all-in rate of 4.1%.

On October 10, 2017, Brookfield Infrastructure Finance Pty Ltd, a wholly-owned subsidiary of Brookfield Infrastructure, repaid C$400 million or $306 million of medium-term notes.

The strengthening of the Canadian dollar against the U.S. dollar during the twelve-month period ended December 31, 2017 resulted in an increase in corporate borrowings of $79 million from December 31, 2016.

Brookfield Infrastructure F-64

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Brookfield Infrastructure has entered into a $500 million revolving credit facility with Brookfield to provide additional liquidity for general corporate purposes and capital expenditures, if required. The revolving credit facility has an effective date of February 8, 2018 and automatically renews for four consecutive one year terms on the first, second, third and fourth anniversary of such effective date, which would result it in ultimately maturing on February 8, 2023. Brookfield has the option to terminate the agreement prior to February 8 each year by providing Brookfield Infrastructure with written notice. All obligations of Brookfield Infrastructure under the facility were guaranteed by our partnership. Loans under this facility accrued interest on LIBOR plus 2.00% and no commitment fees were incurred for any undrawn balance. As of December 31, 2017, there were $nil (2016: $nil) of borrowings outstanding. Subsequent to year end, Brookfield placed $400 million on deposit with Brookfield Infrastructure through the revolving credit facility.

(b) Non-Recourse Borrowings

The current and non-current balances of non-recourse borrowings are as follows:

US$ MILLIONS	Dec. 31, 2017		Dec. 31, 2016
Current	$	364	$	279
Non-current	7,699		7,045
Total	$	8,063	$	7,324

Non-recourse borrowings have increased by $739 million since year-end. This increase is attributable to a $379 million increase of foreign denominated debt balances, predominantly the Australian dollar and the British pound, and increased borrowings of $360 million primarily to fund organic growth initiatives.

Subsequent to year end, on February 14, 2018, our North American gas storage operation issued $400 million of senior secured notes due March 31, 2023 with a coupon of 7%.

Principal repayments on non-recourse borrowings due over the next five years and thereafter are as follows:

US$ MILLIONS	Utilities			Transport			Energy			Total
2018	—			143			229			372
2019	87			261			222			570
2020	304			210			69			583
2021	461			230			4			695
2022	440			323			4			767
Thereafter	2,358			2,095			647			5,100
Total Principal repayments	3,650			3,262			1,175			8,087
Deferred financing costs and other	(1		)	(5		)	(18		)	(24		)
Total - Dec. 31, 2017	$	3,649		$	3,257		$	1,157		$	8,063
Total - Dec. 31, 2016	$	3,207		$	3,163		$	954		$	7,324

F-65 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The weighted average interest rate of non-recourse borrowings are as follows:

US$ MILLIONS	Utilities		Transport		Energy		Total
Dec. 31, 2017	4	%	5	%	5	%	5	%
Dec. 31, 2016	4	%	5	%	5	%	5	%

Principal repayments on non-recourse borrowings in their local currency are as follows:

US$ MILLIONS, except as noted	Dec. 31, 2017		Local Currency		Dec. 31, 2016		Local Currency
Australian dollars	$	1,013	AUD	1,297	$	922	AUD	1,281
British pounds	1,735		GBP	1,283	1,390		GBP	1,125
U.S. dollars	3,087		USD	3,087	3,039		USD	3,039
Chilean Unidad de Fomento(1)	960		UF	22	901		UF	23
Canadian dollars	397		CAD	499	263		CAD	354
Colombian pesos	184		COP	549,384	133		COP	403,030
Peruvian soles	458		PEN	1,483	439		PEN	1,473
Indian rupees	186		INR	11,847	196		INR	13,324
New Zealand dollars	43		NZD	61	41		NZD	59

(1) Chilean Unidad de Fomento is an inflation adjusted unit of account indexed to the Chilean Peso.

(c) Supplemental Information

Details of the “Changes in liabilities from financing activities”, including both changes arising from cash flows and non-cash changes are as follows:

US$ MILLIONS	2016		Cash Flows		Acquisition		Foreign Exchange Movement		Fair Value Changes		2017
Corporate borrowings	$	1,002	$	1,020	$	—	$	79	$	—	$	2,101
Non-recourse borrowings	7,324		360		—		379		—		8,063

NOTE 19.    SUBSIDIARY PUBLIC ISSUERS  

An indenture dated as of October 10, 2012 between certain wholly-owned subsidiaries of our partnership, Brookfield Infrastructure Finance ULC, Brookfield Infrastructure Finance LLC, Brookfield Infrastructure Finance Pty Ltd and Brookfield Infrastructure Finance Limited (collectively, the “Debt Issuers” together with Brookfield Infrastructure Preferred Equity Inc. the “Issuers”), and Computershare Trust Company of Canada, as supplemented and amended from time to time (“Indenture”) provides for the distribution of one or more series of unsecured debentures or notes of the Debt Issuers.

On April 17, 2017, the Debt Issuers issued C$400 million of medium-term notes under the Indenture maturing February 22, 2024 in the Canadian bond market with a coupon of 3.3%, which was swapped into U.S. dollars on a matched maturity basis at an all-in rate of 4.0%.

On February 22, 2017, the Debt Issuers issued C$300 million of medium-term notes under the Indenture maturing February 22, 2024 in the Canadian bond market with a coupon of 3.3%, which was swapped into U.S. dollars on a matched maturity basis at an all-in rate of 4.1%.

Brookfield Infrastructure F-66

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

On October 30, 2015, the Debt Issuers issued C$500 million of medium-term notes under the Indenture in the Canadian bond market in two tranches: C$125 million of three year notes maturing October 30, 2018 with a coupon of 3.0%; and C$375 million of five year notes maturing October 30, 2020 with a coupon of 3.5%. The 3 years and 5 years bonds were swapped into U.S. dollars on a matched maturity basis at an all-in rate of 3.8%.

On March 11, 2015, the Debt Issuers issued C$450 million of medium-term notes under the Indenture maturing March 11, 2022 in the Canadian bond market with a coupon of 3.5%, which was swapped into U.S. dollars on a matched maturity basis at an all-in rate of 3.9%.

As they matured, the partnership repaid C$400 million of medium-term notes onOctober 10, 2017.

These notes are unconditionally guaranteed by our partnership and its subsidiaries the Holding LP, Brookfield Infrastructure Holdings (Canada) Inc., Brookfield Infrastructure US Holdings I Corporation and BIP Bermuda Holdings I Limited.

F-67 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The following tables set forth consolidated summary financial information for our partnership and the Issuers:

For the year ended December 31, 2017 US$ MILLIONS	Our partnership(2)		The Issuers		Subsidiaries of our partnership other than the Issuers(3)		Consolidating adjustments(4)			Our partnership consolidated
Revenues	$	—	$	—	$	—	$	3,535		$	3,535
Net income attributable to partnership(1)	11		—		125		(11		)	125
For the year ended December 31, 2016
Revenues	$	—	$	—	$	—	$	2,115		$	2,115
Net income attributable to partnership(1)	285		—		487		(285		)	487
For the year ended December 31, 2015
Revenues	$	—	$	—	$	—	$	1,855		$	1,855
Net income attributable to partnership(1)	169		—		301		(169		)	301
As at December 31, 2017
Current assets	$	—	$	—	$	—	$	1,512		$	1,512
Non-current assets	5,514		—		5,987		16,464			27,965
Current liabilities	—		—		—		1,564			1,564
Non-current liabilities	—		1,313		—		13,126			14,439
Non-controlling interests—Redeemable Partnership Units held by Brookfield	—		—		—		2,012			2,012
Non-controlling interests—in operating subsidiaries	—		—		—		5,875			5,875
Preferred unitholders	—		—		—		595			595
As at December 31, 2016
Current assets	$	—	$	3	$	—	$	1,629		$	1,632
Non-current assets	4,937		297		5,248		9,161			19,643
Current liabilities	—		5		—		1,510			1,515
Non-current liabilities	—		1,004		—		9,112			10,116
Non-controlling interests—Redeemable Partnership Units held by Brookfield	—		—		—		1,860			1,860
Non-controlling interests—in operating subsidiaries	—		—		—		2,771			2,771
Preferred unitholders	—		—		—		375			375

(1) Includes net income attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

(2) Includes investments in all subsidiaries of our partnership under the equity method.

(3) Includes investments in all subsidiaries of the Holding LP, Brookfield Infrastructure Holdings (Canada) Inc., Brookfield Infrastructure US Holdings I Corporation and BIP Bermuda Holdings I Limited under the equity method.

(4) Includes elimination of intercompany transactions and balances necessary to present our partnership on a consolidated basis.

Brookfield Infrastructure F-68

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 20.  PREFERRED SHARES

As at December 31, 2017, Brookfield Infrastructure Holdings (Canada) Inc., Brookfield Infrastructure US Holdings I Corporation and BIP Bermuda Holdings I Limited (wholly owned subsidiaries of Brookfield Infrastructure) have issued 196,000, 1 and 400,000 preferred shares, respectively, to wholly owned subsidiaries of Brookfield, for proceeds of $5 million, $5 million and $10 million, respectively (2016: $5 million, $5 million and $10 million, respectively). Each preferred share is non-voting and is redeemable at $25 per share except in the case of the preferred share issued by Brookfield Infrastructure US Holdings I Corporation, which is redeemable for $5 million. Each of these preferred shares is redeemable, together with any accrued and unpaid dividends, at the option of the issuer on or after the tenth anniversary of the date of issue, subject to certain restrictions. Further, these preferred shares entitle the holders thereof to a fixed cumulative 6% preferential cash dividend payable quarterly as and when declared by the issuer’s board of directors. At December 31, 2017, there were no dividends in arrears (2016: $nil).

NOTE 21.  REVENUES

Brookfield Infrastructure’s revenue arises from the rendering of services by the following operating segments:

US$ MILLIONS	2017		2016		2015
Utilities
Regulated Transmission	$	938	$	27	$	43
Regulated Terminal	301		299		330
Regulated Distribution	546		499		491
Transport
Rail	296		270		316
Ports	681		360		220
Toll Roads	313		262		113
Energy
Transmission & Storage	150		141		105
District Energy	310		257		237
	$	3,535	$	2,115	$	1,855

NOTE 22.  INTEREST EXPENSE

US$ MILLIONS	2017		2016		2015
Interest on corporate facility	$	12	$	12	$	5
Interest on corporate debt	51		39		22
Interest on non-recourse borrowings	361		338		334
Other financing fees	4		3		6
	$	428	$	392	$	367

F-69 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 23.  PAYROLL EXPENSE

Our partnership has no key employees or directors; therefore Brookfield Infrastructure does not remunerate key management personnel. Key decision makers of Brookfield Infrastructure are all employees of the ultimate parent company who provide management services under Brookfield Infrastructure’s Master Services Agreement. Details of the management fees paid in lieu of payroll are disclosed in Note 32, Related Party Transactions.

Throughout the year, the General Partner in its capacity as our partnership’s general partner, incurs director fees, a portion of which are charged to our partnership in accordance with the limited partnership agreement. Less than $1 million in director fees were incurred during the year ended December 31, 2017 (2016: less than $1 million, 2015: less than $1 million).

For the year ended December 31, 2017, payroll expense, including benefits at Brookfield Infrastructure’s subsidiaries was $519 million (2016: $309 million, 2015: $212 million).

NOTE 24.  NON-WHOLLY OWNED SUBSIDIARIES

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Financial Position:

	As of December 31, 2017
US$ MILLIONS	Current Assets		Non-Current Assets		Current Liabilities		Non-Current Liabilities		Non-Controlling Interest in Operating Subsidiaries		Partnership Capital(1)
Utilities
U.K. regulated distribution	$	107	$	3,550	$	281	$	2,261	$	217	$	898
Australian regulated terminal	38		2,229		34		2,035		62		136
Colombian regulated distribution	68		764		26		438		302		66
Brazilian regulated gas transmission operation	322		5,990		73		2,015		3,081		1,143
Transport
U.K. port operation	44		880		133		353		179		259
Australian port operation	163		628		101		218		346		126
Chilean toll roads	84		1,116		59		989		75		77
Peruvian toll roads	101		1,356		18		674		644		121
Indian toll roads	58		256		30		185		60		39
Energy
North American gas storage operation	206		1,259		244		409		502		310
Canadian district energy operation	75		699		55		394		243		82
U.S. district energy operation	37		799		19		668		78		71
Corporate & Other
Holding LP and other	127		244		392		2,060		84		(2,165		)
Total	$	1,430	$	19,770	$	1,465	$	12,699	$	5,873	$	1,163

(1) Attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

Brookfield Infrastructure F-70

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

	As of December 31, 2016
US$ MILLIONS	Current Assets		Non-Current Assets		Current Liabilities			Non-Current Liabilities		Non-Controlling Interest in Operating Subsidiaries		Partnership Capital(1)
Utilities
U.K. regulated distribution	$	65	$	2,985	$	154		$	1,919	$	183	$	794
Australian regulated terminal	27		2,162		(9		)	1,926		70		202
Colombian regulated distribution	55		701		27			369		294		66
Transport
U.K. port operation	42		754		108			324		150		214
Australian port operation	142		587		94			205		315		115
Chilean toll roads	102		1,069		50			941		89		91
Brazilian toll roads	42		466		27			—		189		292
Peruvian toll roads	127		1,261		27			635		610		116
Indian toll roads	52		264		36			186		58		36
Energy
North American gas storage	199		1,141		136			478		452		274
Canadian district energy operation	15		570		13			290		209		73
U.S. district energy operation	43		697		62			537		73		68
Corporate & Other
Holding LP and other	631		377		677			810		79		(558		)
Total	$	1,542	$	13,034	$	1,402		$	8,620	$	2,771	$	1,783

(1) Attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

F-71 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Operating Results:

	Year ended December 31, 2017
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income (loss)			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	385	$	21		$	29		$	114		$	118
Australian regulated terminal operation	301		15			3			35			7
Colombian regulated distribution operation	161		12			38			2			7
Brazilian regulated gas transmission operation	938		349			(160		)	146			(72		)
Transport
U.K. port operation	180		8			21			22			29
Australian port operation	501		(7		)	28			(3		)	9
Chilean toll roads	154		—			7			—			8
Peruvian toll roads	103		12			22			2			5
Indian toll roads	57		(2		)	4			(1		)	3
Energy
North American gas storage operation	149		30			74			18			47
Canadian district energy operation	95		(2		)	39			—			13
U.S. district energy operation	131		10			40			7			26
Corporate & Other
Holding LP and other	22		(3		)	1			(349		)	(410		)
Total	$	3,177	$	443		$	146		$	(7	)	$	(210	)

Brookfield Infrastructure F-72

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

	Year ended December 31, 2016
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income (loss)			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	347	$	12		$	(14	)	$	79		$	(55	)
Australian regulated terminal operation	299		15			(5		)	46			(12		)
Colombian regulated distribution operation	150		10			45			2			10
Transport
U.K. port operation	178		11			(37		)	20			(52		)
Australian port operation	182		(18		)	(24		)	(7		)	(8		)
Chilean toll roads	127		(9		)	7			(10		)	8
Brazilian toll roads	—		6			38			5			25
Peruvian toll roads	97		(8		)	(7		)	(2		)	(1		)
Indian toll roads	39		(3		)	1			(3		)	—
Energy
North American gas storage operation	100		1			—			1			—
Canadian district energy operation	79		(1		)	31			1			11
U.S. district energy operation	111		(6		)	31			—			20
Corporate & Other
Holding LP and other	15		31			1			31			180
Total	$	1,724	$	41		$	67		$	163		$	126

F-73 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

	Year ended December 31, 2015
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	339	$	21		$	25		$	122		$	101
Australian regulated terminal operation	330		15			(4		)	68			(9		)
Colombian regulated distribution operation	152		13			(26		)	16			(9		)
Transport
U.K. port operation	220		7			13			22			18
Chilean toll roads	113		(7		)	(20		)	(15		)	(21		)
Energy
North American gas storage operation	20		(8		)	5			(12		)	1
Canadian district energy operation	80		—			6			—			2
U.S. district energy operation	114		(6		)	8			(3		)	5
Corporate & Other
Holding LP and other	21		55			(90		)	5			(32		)
Total	$	1,389	$	90		$	(83	)	$	203		$	56

Brookfield Infrastructure F-74

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Cash Flows:

	Cash Flow Activities
	Year ended December 31, 2017									Year ended December 31, 2016
US$ MILLIONS	Operating			Investing			Financing			Operating			Investing			Financing
Utilities
U.K. regulated distribution operation	$	220		$	(343	)	$	129		$	244		$	(487	)	$	245
Australian regulated terminal operation	96			(9		)	(87		)	128			(22		)	(106		)
Colombian regulated distribution operation	7			(22		)	26			17			(18		)	—
Brazilian regulated gas transmission operation	819			83			(839		)	—			—			—
Transport
U.K. port operation	46			(40		)	(10		)	33			(24		)	(14		)
Australian port operation	37			(39		)	12			7			(99		)	154
Chilean toll roads	56			(5		)	(88		)	63			(1		)	(99		)
Brazilian toll roads	—			—			—			2			(70		)	70
Peruvian toll roads	46			(67		)	—			29			25			1
Indian toll roads	30			(7		)	(22		)	(7		)	28			(10		)
Energy
North American gas storage operation	55			(9		)	(76		)	(12		)	6			46
Canadian district energy operation	26			(82		)	102			27			(18		)	(13		)
U.S. district energy operation	24			8			(28		)	26			(33		)	9
Corporate & Other
Holding LP and other	(98		)	(5,089		)	4,721			124			(282		)	618
Total	$	1,364		$	(5,621	)	$	3,840		$	681		$	(995	)	$	901

F-75 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

	Cash Flow Activities
	Year ended December 31, 2015
US$ MILLIONS	Operating			Investing			Financing
Utilities
U.K. regulated distribution operation	$	164		$	(242	)	$	92
Australian regulated terminal operation	103			(37		)	(67		)
New England electricity transmission operation	2			—			(2		)
Colombian regulated distribution operation	16			(6		)	(7		)
Transport
U.K. port operation	19			(66		)	61
Australian port operation	—			—			—
Chilean toll roads	70			—			(38		)
Energy
North American gas storage operation	(3		)	(1		)	1
Canadian district energy operation	22			(16		)	(23		)
U.S. district energy operation	21			(13		)	(7		)
Corporate & Other
Holding LP and other	92			(650		)	554
Total	$	506		$	(1,031	)	$	564

Brookfield Infrastructure F-76

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 25.  INCOME TAXES

Our partnership is a flow through entity for tax purposes and as such is not subject to taxation. However, income taxes are recognized for the amount of taxes payable by the partnership’s corporate subsidiaries and for the impact of deferred tax assets and liabilities related to such subsidiaries.

(a) Deferred Income Tax Balances

The sources of deferred income tax balances are as follows:

	As of December 31
US$ MILLIONS	2017			2016
Deferred income tax assets
Tax losses carried forward	$	361		$	357
Financial instruments and other	—			125
	$	361		$	482
Deferred income tax liabilities
Property, plant and equipment and investment properties	$	(1,374	)	$	(1,306	)
Intangible assets	(1,761		)	(714		)
Financial instruments and other	$	(9	)	$	—
	$	(3,144	)	$	(2,020	)
Net deferred income tax liabilities	$	(2,783	)	$	(1,538	)
Reflected in the statement of financial position as follows:
Deferred income tax assets	$	66		$	74
Deferred income tax liabilities	(2,849		)	(1,612		)
Net deferred income tax liabilities	$	(2,783	)	$	(1,538	)

F-77 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The sources of deferred income tax balances and movements are as follows:

				Recognized in
US$ MILLIONS	Jan. 1, 2017			Net Income			Other Comprehensive Income			Other(1)			Acquisitions (Dispositions)			Dec. 31, 2017
Deferred income tax assets related to non-capital losses and capital losses	$	357		$	(19	)	$	—		$	23		$	—		$	361
Deferred income tax liabilities related to differences in tax and book basis, net	(1,895		)	(48		)	(200		)	(71		)	(930		)	(3,144		)
Net deferred income tax liabilities	$	(1,538	)	$	(67	)	$	(200	)	$	(48	)	$	(930	)	$	(2,783	)

				Recognized in
US$ MILLIONS	Jan. 1, 2016			Net Income		Other Comprehensive Income			Other(1)		Acquisitions (Dispositions)			Dec. 31, 2016
Deferred income tax assets related to non-capital losses and capital losses	$	239		$	17	$	—		$	4	$	97		$	357
Deferred income tax liabilities related to differences in tax and book basis, net	(1,542		)	1		(75		)	52		(331		)	(1,895		)
Net deferred income tax liabilities	$	(1,303	)	$	18	$	(75	)	$	56	$	(234	)	$	(1,538	)

(1) Other items relates to foreign exchange as deferred income taxes are calculated based on the functional currency of each operating entity.

The amount of non-capital and capital losses and deductible temporary differences for which no deferred income tax assets have been recognized is approximately $859 million (2016: $820 million). Of the $859 million (2016: $820 million) deductible temporary differences not recognized, $480 million (2016: $442 million) relates to capital losses which carry forward indefinitely and have no expiry dates. The remaining $379 million (2016: $378 million) relates to non-capital losses, of which $7 million (2016: $5 million) expire between 2020 to 2030 and $372 million (2016: $373 million) that carry forward indefinitely and have no expiry dates.

In 2016, as part of the acquisition of our Indian toll road business, a net deferred tax asset in respect of tax losses of $10 million was recognized. The benefit of these losses has been recognized based on management’s best estimate that it is considered probable that future taxable profits would be available against which such losses can be utilized.

Brookfield Infrastructure F-78

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

(b) Income Tax Recognized in Profit or Loss

The major components of income tax expense include the following:

	For the year ended December 31,
US$ MILLIONS	2017			2016			2015
Tax expense (recovery) comprises:
Current income tax expense	$	106		$	33		$	22
Deferred income tax expense (recovery)
Origination and reversal of temporary differences	92			(62		)	4
Changes in tax rates or the imposition of new taxes	(41		)	1			(28		)
Previously unrecognized deferred taxes	16			43			(2		)
Total income tax expense (recovery)	$	173		$	15		$	(4	)
Net income before income tax expense reconciles to income tax expense (recovery) as follows:
Net income before income tax	$	747		$	543		$	387
Income tax expense calculated at the domestic rates applicable to profits in the country concerned	304			77			74
Change in substantively enacted tax rates	(41		)	1			(28		)
Earnings from investments in associates and joint ventures	(12		)	(34		)	(16		)
Portion of gains subject to different tax rates	2			(54		)	2
Taxable income attributable to non-controlling interests	(65		)	(7		)	(25		)
International operations subject to different tax rates	(39		)	(6		)	(8		)
Deferred tax assets not recognized	15			41			4
Permanent differences and other	9			(3		)	(7		)
Income tax expense (recovery) recognized in profit or loss	$	173		$	15		$	(4	)

As the partnership is not subject to tax, the above reconciliation has been prepared using a composite statutory rate for jurisdictions where Brookfield Infrastructure’s subsidiaries operate. The composite rate has increased due to changes in the related operating income in the various subsidiaries and changes in local statutory rates.

The partnership has approximately $2,411 million (2016: $2,230 million) of temporary differences associated with investments in subsidiaries, and associates for which no deferred income taxes have been provided.

(c) Income Tax Recognized Directly in Other Comprehensive Income

US$ MILLIONS	2017			2016			2015
Deferred income tax arising on income and expenses recognized in other comprehensive income:
Revaluation of property, plant and equipment	$	(204	)	$	(90	)	$	(130	)
Cash flow hedges	8			8			(15		)
Other	(4		)	7			4
Total income tax expense recognized directly in other comprehensive income	$	(200	)	$	(75	)	$	(141	)

F-79 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 26.  PARTNERSHIP CAPITAL

As at December 31, 2017, our partnership’s capital structure was comprised of three classes of partnership units: units, preferred units and general partnership units. Units entitle the holder to their proportionate share of distributions. Preferred units entitle the holder to cumulative preferential cash distributions in accordance with their terms. General partnership units entitle the holder the right to govern the financial and operating policies of our partnership. The Holding LP’s capital structure is composed of four classes of partnership units: Special General Partner Units, Holding LP Class A Preferred Units, Managing General Partner Units and Redeemable Partnership Units held by Brookfield.

In its capacity as the holder of the Special General Partner Units of the Holding LP, the special general partner is entitled to incentive distribution rights which are based on the amount by which quarterly distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed specified target levels. To the extent distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed $0.203 per quarter, the incentive distribution rights entitle the special general partner to 15% of incremental distributions above this threshold. To the extent that distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed $0.22 per unit, the incentive distribution rights entitle the special general partner to 25% of incremental distributions above this threshold. During the year, the Holding LP paid incentive distributions of $113 million (2016: $80 million, 2015: $64 million).

The Holding LP has issued 115.8 million Redeemable Partnership Units to Brookfield, which may, at the request of the holder, require the Holding LP to redeem the Redeemable Partnership Units for cash in an amount equal to the market value of our units. This right is subject to our partnership’s right of first refusal which entitles it, at its sole discretion, to elect to acquire any Redeemable Partnership Units so presented to the Holding LP in exchange for one of our partnership’s units (subject to certain customary adjustments). Both the units issued by our partnership and the Redeemable Partnership Units issued by the Holding LP have the same economic attributes in all respects, except for the redemption right described above. The Redeemable Partnership Units participate in earnings and distributions on a per Redeemable Partnership Unit basis equivalent to the per unit participation of the units of our partnership. Our partnership reflects the Redeemable Partnership Units issued to Brookfield by the Holding LP as non-controlling interest–Redeemable Partnership Units held by Brookfield.

On September 14, 2016, our partnership completed a three-for-two split of its units by way of a subdivision of units, whereby unitholders received an additional one-half of a unit for each unit held, resulting in the issuance of approximately 115 million additional units. Any fractional units otherwise issuable to registered holders as a result of the Unit Split were rounded up to the nearest whole unit. Our preferred units were not affected by the Unit Split. The Managing General Partner Units, Special General Partner Units and Redeemable Partnership Units of the Holding LP were concurrently split to reflect the Unit Split.

Brookfield Infrastructure F-80

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

(a) Special and Limited Partnership Capital

	Special General Partner Units			Limited Partnership Units					Total
UNITS MILLIONS	2017	2016	2015	2017	2016		2015		2017	2016		2015
Opening balance	1.6	1.6	1.6	259.4	243.2		225.5		261.0	244.8		227.1
Issued for cash	—	—	—	17.2	16.4		20.2		17.2	16.4		20.2
Repurchased and cancelled	—	—	—	—	(0.2	)	(2.5	)	—	(0.2	)	(2.5	)
Ending balance	1.6	1.6	1.6	276.6	259.4		243.2		278.2	261.0		244.8

	Special General Partner						Limited Partners								Total
US$ MILLIONS	2017		2016		2015		2017		2016			2015			2017		2016			2015
Opening balance	$	19	$	19	$	19	$	4,215	$	3,716		$	3,201		$	4,234	$	3,735		$	3,220
Unit issuance	—		—		—		692		505			582			692		505			582
Repurchased and cancelled	—		—		—		—		(6		)	(67		)	—		(6		)	(67		)
Ending balance	$	19	$	19	$	19	$	4,907	$	4,215		$	3,716		$	4,926	$	4,234		$	3,735

In September 2017, Brookfield Infrastructure issued 16.6 million limited partnership units at $42 per unit under shelf registrations in the U.S. and Canada. In total, $700 million of gross proceeds were raised through the issuance and $28 million in equity issuance costs were incurred. Concurrently, Brookfield Infrastructure issued 7.4 million Redeemable Partnership Units to Brookfield for proceeds of $300 million. As Brookfield participated in the unit offering at a percentage greater than its ownership interest in the Holding LP prior to the equity offering, this resulted in a slight decrease in our partnership’s ownership interest in the Holding LP without resulting in a loss of control. The difference between the proportionate amount by which the non-controlling interest in Holding LP was increased and the proceeds of the Redeemable Partnership Unit offering resulted in a gain of $6 million that was recognized directly in equity.

The gain on changes in ownership interest recognized in equity is recorded as ownership changes within the Statements of Partnership Capital. Amounts in accumulated other comprehensive income at the date of the unit offering that were attributable to the limited partners were ratably allocated to accumulated other comprehensive income attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield.

In December 2016, Brookfield Infrastructure issued 15.6 million limited partnership units at $32 per unit under shelf registrations in the U.S. and Canada. In total, $500 million of gross proceeds were raised through the issuance and $20 million in equity issuance costs were incurred. Concurrently, Brookfield Infrastructure issued 8.1 million Redeemable Partnership Units to Brookfield for proceeds of $250 million. The difference between the proportionate amount by which the non-controlling interest in Holding LP was increased and the proceeds of the Redeemable Partnership Unit offering resulted in a gain of $16 million that was recognized directly in equity.

During the year ended December 31, 2016, Brookfield Infrastructure repurchased and cancelled less than 1 million units for $6 million (2015: 2.5 million units for $67 million) and incurred less than $1 million in commission costs (2015: less than $1 million).No units were repurchased or cancelled in 2017.

F-81 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

In April 2015, Brookfield Infrastructure issued approximately 20 million units at $30 per unit under shelf registrations in the U.S. and Canada. In total, $600 million of gross proceeds were raised through the issuance and $24 million in equity issuance costs were incurred.

In June 2010, we implemented a distribution reinvestment plan (the “Plan”) that allows eligible holders of our partnership to purchase additional units by reinvesting their cash distributions. Under the Plan, units are acquired at a price per unit calculated by reference to the volume weighted average of the trading price for our units on the New York Stock Exchange for the five trading days immediately preceding the relevant distribution date. During the year, our partnership issued less than 1 million units for proceeds of $20 million (2016: less than 1 million units for proceeds of $25 million, 2015: less than 1 million units for proceeds of $6 million) under the Plan.

The weighted average number of Special General Partner Units outstanding for the year ended December 31, 2017 was 1.6 million (2016: 1.6 million, 2015: 1.6 million). The weighted average number of limited partnership units outstanding for the year ended December 31, 2017 was 264.6 million (2016: 244.7 million, 2015: 238.9 million).

(b) Non-controlling interest—Redeemable Partnership Units held by Brookfield

	Non-controlling interest— Redeemable Partnership Units held by Brookfield
UNITS MILLIONS	2017	2016	2015
Opening balance	108.4	100.3	88.1
Issued for cash	7.4	8.1	12.2
Ending balance	115.8	108.4	100.3

	Non-controlling interest— Redeemable Partnership Units held by Brookfield
US$ MILLIONS	2017		2016		2015
Opening balance	$	1,778	$	1,528	$	1,178
Unit issuance	300		250		350
Ending balance	$	2,078	$	1,778	$	1,528

In September 2017, Brookfield Infrastructure issued 7.4 million Redeemable Partnership Units to Brookfield for proceeds of $300 million.

In December 2016, Brookfield Infrastructure issued 8.1 million Redeemable Partnership Units to Brookfield for proceeds of $250 million.

In April 2015, Brookfield Infrastructure issued 12.2 million Redeemable Partnership Units to Brookfield for proceeds of $350 million.

Brookfield Infrastructure F-82

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The weighted average number of Redeemable Partnership Units outstanding for the year ended December 31, 2017 was 110.6 million (2016: 100.9 million, 2015: 96.9 million).

(c) Preferred Unitholders’ Capital

	Preferred Units
UNITS MILLIONS	2017	2016	2015
Opening balance	20.0	10.0	—
Issued for cash	12.0	10.0	10.0
Ending balance	32.0	20.0	10.0

	Preferred Units
US$ MILLIONS	2017		2016		2015
Opening balance	$	375	$	189	$	—
Unit issuance	220		186		189
Ending balance	$	595	$	375	$	189

Subsequent to year end, on January 23, 2018, our partnership issued 8 million Series 9 Preferred Units at C$25 per unit with a quarterly fixed distribution at a rate of 5.00% annually for the initial period ending March 31, 2023. In total, C$200 million or $161 million of gross proceeds were raised, $4 million in underwriting costs were incurred and less than $1 million in issuance costs were incurred.

On January 26, 2017, our partnership issued 12 million Series 7 Preferred Units at C$25 per unit with a quarterly fixed distribution at a rate of 5.00% annually for the initial period ending March 31, 2022. In total, C$300 million or $225 million of gross proceeds were raised, $5 million in underwriting costs were incurred and less than $1 million in issuance costs were incurred.

In August 2016, our partnership issued ten million Series 5 Preferred Units at C$25 per unit with a quarterly fixed distribution at a rate of 5.35% annually for the initial period ending September 30, 2021. In total, C$250 million or $190 million of gross proceeds were raised and $4 million in issuance costs were incurred.

In December 2015, our partnership issued five million Series 3 Preferred Units at C$25 per unit with a quarterly fixed distribution at a rate of 5.50% annually for the initial period ending December 31, 2020. In total, C$125 million or $95 million of gross proceeds were raised and $2 million in issuance costs were incurred.

In March 2015, our partnership issued five million Series 1 Preferred Units at C$25 per unit with a quarterly fixed distribution at a rate of 4.50% annually for the initial period ending June 30, 2020. In total, C$125 million or $100 million of gross proceeds were raised and $4 million in issuance costs were incurred.

F-83 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 27.  ACCUMULATED OTHER COMPREHENSIVE INCOME

(a) Attributable to Limited Partners’

US$ MILLIONS	Revaluation Surplus			Foreign Currency Translation			Net Investment Hedges			Cash Flow Hedges			Available for sale			Unrealized Actuarial Losses			Equity accounted investments			Accumulated Other Comprehensive Income
Balance at December 31, 2015	$	1,042		$	(889	)	$	99		$	(140	)	$	(9	)	$	(13	)	$	465		$	555
Other comprehensive income (loss)	93			(5		)	117			9			5			(17		)	156			358
Other items (note 26)	(178		)	3			(1		)	1			—			—			(2		)	(177		)
Balance at December 31, 2016	$	957		$	(891	)	$	215		$	(130	)	$	(4	)	$	(30	)	$	619		$	736
Other comprehensive income (loss)	19			56			(187		)	104			4			3			129			128
Balance at December 31, 2017	$	976		$	(835	)	$	28		$	(26	)	$	—		$	(27	)	$	748		$	864

(b) Attributable to General Partner

US$ MILLIONS	Revaluation Surplus			Foreign Currency Translation			Net Investment Hedges			Cash Flow Hedges			Available for sale		Unrealized Actuarial Losses		Equity accounted investments		Accumulated Other Comprehensive Income
Balance at December 31, 2015	$	7		$	(5	)	$	1		$	(1	)	$	—	$	—	$	2	$	4
Other comprehensive income (loss)	1			—			2			—			—		—		1		4
Other items (note 26)	(1		)	—			—			—			—		—		—		(1		)
Balance at December 31, 2016	$	7		$	(5	)	$	3		$	(1	)	$	—	$	—	$	3	$	7
Other comprehensive income (loss)	—			(1		)	(2		)	1			—		—		1		(1		)
Balance at December 31, 2017	$	7		$	(6	)	$	1		$	—		$	—	$	—	$	4	$	6

Brookfield Infrastructure F-84

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

(c) Attributable to Non-controlling interest—Redeemable Partnership Units held by Brookfield

US$ MILLIONS	Revaluation Surplus			Foreign Currency Translation			Net Investment Hedges			Cash Flow Hedges			Available for sale			Unrealized Actuarial Losses			Equity accounted investments		Accumulated Other Comprehensive Income
Balance at December 31, 2015	$	447		$	(358	)	$	38		$	(61	)	$	(4	)	$	(2	)	$	194	$	254
Other comprehensive income (loss)	38			(4		)	49			4			2			(7		)	65		147
Other items (note 26)	(68		)	(3		)	1			(1		)	(1		)	—			2		(70		)
Balance at December 31, 2016	$	417		$	(365	)	$	88		$	(58	)	$	(3	)	$	(9	)	$	261	$	331
Other comprehensive income (loss)	8			26			(77		)	44			1			1			53		56
Balance at December 31, 2017	$	425		$	(339	)	$	11		$	(14	)	$	(2	)	$	(8	)	$	314	$	387

NOTE 28.  DISTRIBUTIONS

For the year ended December 31, 2017, distributions to partnership unitholders were $651 million or $1.74 per unit (2016: $535 million or $1.55 per unit, 2015: $479 million or $1.41 per unit). Additionally, incentive distributions were made to the special general partner of $113 million (2016: $80 million, 2015: $64 million).

On February 8, 2018 the Board of Directors of our General Partner approved an 8% increase in our quarterly distribution to $0.47 per unit, payable on March 31, 2018 to unitholders on record as of the close of business on February 28, 2018.

For the year ended December 31, 2017, our partnership declared preferred unit distributions of $30 million or $0.94 per preferred unit (2016: $13 million, 2015: $3 million).

NOTE 29.  CONTINGENT ASSETS & LIABILITIES

Brookfield Infrastructure, including its associates, had bank and customs guarantees and letters of credit outstanding to third parties totaling $182 million (2016: $141 million). These guarantees are generally supported by cash on deposit with banks.

Our partnership and its subsidiaries are contingently liable with respect to litigation and claims that arise in the normal course of operations.

NOTE 30.  CONTRACTUAL COMMITMENTS

In the normal course of business, our partnership will enter into contractual obligations which include commitments relating primarily to contracted project costs for various growth initiatives, committed expenditures associated with gas and electricity sales contracts at our U.K. regulated distribution operation, and operating leases associated with our North American gas storage operations. As at December 31, 2017, our partnership had $1,448 million (2016: $1,201 million) of commitments outstanding, of which 32% mature in less than one year, 42% between two and five years, and 26% after five years.

F-85 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

In addition, pursuant to the Master Service Agreement, on a quarterly basis, Brookfield Infrastructure pays a base management fee to the Service Provider equal to 0.3125% per quarter (1.25% annually) of the market value of our partnership. This fee is recorded on the Consolidated Statements of Operating Results in general and administrative expenses.

NOTE 31.  RETIREMENT BENEFIT PLANS

Brookfield Infrastructure offers pension plans to certain employees of its subsidiaries. Brookfield Infrastructure’s obligations under its defined benefit pension plans are determined periodically through the preparation of actuarial valuations. The benefit plans’ expense for 2017 was $10 million (2016: $7 million, 2015: less than $1 million). The discount rate used was 4.1% (2016: 4.2%, 2015: 6.1%) with a rate of compensation of 3.5% (2016: 3.5%, 2015: 3.3%).

US$ MILLIONS	2017			2016
Plan assets	$	228		$	198
Less accrued benefit obligation	(328		)	(296		)
Accrued benefit liability	$	(100	)	$	(98	)

NOTE 32.  RELATED PARTY TRANSACTIONS

In the normal course of operations, Brookfield Infrastructure entered into the transactions below with related parties. The immediate parent of Brookfield Infrastructure is our partnership. The ultimate parent of Brookfield Infrastructure is Brookfield. Other related parties of Brookfield Infrastructure represent its subsidiary and operating entities.

a) Transactions with the immediate parent

Throughout the year, the General Partner, in its capacity as our partnership’s general partner, incurs director fees, a portion of which are charged at cost to our partnership in accordance with the limited partnership agreement. Less than $1 million in director fees were incurred during the year ended December 31, 2017 (2016: less than $1 million, 2015: less than $1 million).

b) Transactions with other related parties

Since inception, Brookfield Infrastructure has been party to the Master Services Agreement with the Service Provider.

Pursuant to the Master Services Agreement, on a quarterly basis, Brookfield Infrastructure pays a base management fee, referred to as the Base Management Fee, to the Service Provider equal to 0.3125% per quarter (1.25% annually) of the market value of our partnership. The Base Management Fee was $230 million for the year ended December 31, 2017 (2016: $158 million, 2015: $126 million). As of December 31, 2017, $64 million was outstanding as payable to the Service Provider (2016: $42 million).

For purposes of calculating the Base Management Fee, the market value of our partnership is equal to the aggregate value of all the outstanding units of our partnership (assuming full conversion of Brookfield’s Redeemable Partnership Units in the Holdings LP into units of our partnership), preferred units and securities of the other Service Recipients (as defined in Brookfield Infrastructure’s Master Services Agreement) that are not held by Brookfield Infrastructure, plus all outstanding third party debt with recourse to a Service Recipient, less all cash held by such entities.

Brookfield Infrastructure F-86

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

During the year ended December 31, 2017, $6 million was reimbursed at cost to the Service Provider (2016: $5 million, 2015: $8 million). These amounts represent third party costs that were paid for by Brookfield on behalf of Brookfield Infrastructure relating to general and administrative expenses, and acquisition related expenses of Brookfield Infrastructure. These expenses were charged to Brookfield Infrastructure at cost.

As of December 31, 2017, Brookfield Infrastructure had a balance receivable of $20 million from subsidiaries of Brookfield (December 31, 2016: $20 million) and loans payable of $75 million to subsidiaries of Brookfield (December 31, 2016: $75 million). The loans are payable in full between 2018 and 2026 with interest rates ranging from 3.8% to 8.5% per annum.

Brookfield Infrastructure, from time to time, will place or receive funds on deposit with or from Brookfield. As atDecember 31, 2017, Brookfield Infrastructure’s deposit balance with Brookfield was less than$1 million (December 31, 2016: $255 million) and earned interest of $1 million for year endedDecember 31, 2017 (2016: less than $1 million, 2015: less than $1 million).

Brookfield Infrastructure’s North American district energy operation provides heating and cooling services and leases office space on market terms with subsidiaries of Brookfield Office Properties Inc. The North American district energy operation also utilizes consulting and engineering services provided by a wholly-owned subsidiary of Brookfield on market terms. For the year ended December 31, 2017, revenues of $8 million were generated (2016: $1 million, 2015: less than $1 million) and expenses of $4 million were incurred (2016: less than $1 million, 2015: less than $1 million).

Brookfield Infrastructure utilizes a wholly-owned subsidiary of Brookfield to negotiate and purchase insurance and assess the adequacy of insurance on behalf of our partnership and certain subsidiaries. During the year ended December 31, 2017, Brookfield Infrastructure paid less than $1 million for these services (2016: less than $1 million, 2015: less than $1 million).

Brookfield Infrastructure’s U.K. port operation provides port marine services on market terms to a subsidiary acquired by Brookfield Business Partners LP during 2017. For the year ended December 31, 2017, $2 million of revenues were generated.

NOTE 33.  DERIVATIVE FINANCIAL INSTRUMENTS

Brookfield Infrastructure’s activities expose it to a variety of financial risks, including market risk (i.e. currency risk, interest rate risk, commodity risk and other price risk), credit risk and liquidity risk. Brookfield Infrastructure and its subsidiaries selectively use derivative financial instruments principally to manage these risks.

The aggregate notional amount of Brookfield Infrastructure’s derivative positions at December 31, 2017 and 2016 were as follows:

US$ MILLIONS	Note	2017		2016
Foreign exchange contracts	(a)	$	3,816	$	4,488
Interest rates swaps and other	(b)	5,013		4,416
		$	8,829	$	8,904

F-87 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The following table presents the change in fair values of Brookfield Infrastructure’s derivative positions during the years ended December 31, 2017 and 2016:

US$ MILLIONS	Unrealized Gains on Derivative Financial Assets		Unrealized Losses on Derivative Financial Liabilities			Net Change During 2017			Net Change During 2016
Foreign exchange derivatives	$	—	$	(305	)	$	(305	)	$	97
Interest rate derivative	132		(69		)	63			15
	$	132	$	(374	)	$	(242	)	$	112

(a) Foreign Exchange

Brookfield Infrastructure held the following foreign exchange contracts with notional amounts at December 31, 2017 and 2016.

	Notional Amount (U.S. Dollars)				Average Exchange Rate
US$ MILLIONS	2017		2016		2017	2016
Foreign exchange contracts
Australian dollars	$	1,214	$	2,133	0.74	0.73
British pounds	2,069		1,810		1.30	1.30
European Union euros	491		374		1.17	1.14
Brazilian reais	—		144		—	3.37
Canadian dollars	42		27		0.77	0.76
	$	3,816	$	4,488

(b) Interest Rates

At December 31, 2017, Brookfield Infrastructure held interest rate and cross currency interest rate swap contracts having an aggregate notional amount of $4,843 million (2016: $4,261 million). Brookfield Infrastructure has inflation linked swaps with an aggregate notional amount of $170 million (2016: $155 million).

Brookfield Infrastructure F-88

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Other Information Regarding Derivative Financial Instruments

The following table presents the notional amounts underlying Brookfield Infrastructure’s derivative instruments by term to maturity as at December 31, 2017 and the comparative notional amounts at December 31, 2016, for both derivatives that are classified as fair value through profit or loss and derivatives that qualify for hedge accounting:

	2017								2016
US$ MILLIONS	< 1 year		1 to 5 years		> 5 years		Total Notional Amount		Total Notional Amount
Fair value through profit or loss
Foreign exchange derivatives	$	640	$	807	$	—	$	1,447	$	1,351
Interest rate derivatives
Interest rate and cross currency interest rate swaps	273		484		59		816		752
Inflation linked swaps	—		—		170		170		155
	$	913	$	1,291	$	229	$	2,433	$	2,258
Elected for hedge accounting
Foreign exchange derivatives	$	1,788	$	581	$	—	$	2,369	$	3,136
Interest rate derivatives
Interest rate and cross currency interest rate swaps	99		2,051		1,877		4,027		3,509
	$	1,887	$	2,632	$	1,877	$	6,396	$	6,645

The following table classifies derivatives elected for hedge accounting during the years ended December 31, 2017 and 2016 as either cash flow hedges or net investment hedges. Changes in the fair value of the effective portion of the hedges are recorded in either other comprehensive income or net income, depending on the hedge classification, whereas changes in the fair value of the ineffective portion of the hedge are recorded in net income:

	2017							2016
AS AT AND FOR THE YEARS ENDED (MILLIONS)	Notional		Effective Portion			Ineffective Portion		Notional		Effective Portion		Ineffective Portion
Cash flow hedges	$	4,027	$	15		$	—	$	3,509	$	30	$	1
Net investment hedges	2,369		(197		)	—		3,136		53		—
	$	6,396	$	(182	)	$	—	$	6,645	$	83	$	1

Our partnership settles the difference between the contracted fixed and floating rates of its interest rate swaps on a net basis. All interest rate swap contracts exchanging floating rate interest amounts for fixed rate interest amounts are designated as cash flow hedges in order to reduce our partnership’s cash flow exposure resulting from variable interest rates on borrowings. The interest rate swaps and the interest payments on the borrowings occur simultaneously and the amount accumulated in equity is reclassified to profit or loss over the period that the floating rate interest payments on borrowings affect profit or loss.

F-89 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 34.  FINANCIAL RISK MANAGEMENT

Brookfield Infrastructure is exposed to the following risks as a result of holding financial instruments: capital risk; liquidity risk; market risk (i.e. interest rate risk and foreign currency risk); and credit risk. The following is a description of these risks and how they are managed:

(a) Liquidity Risk Management

Brookfield Infrastructure manages its capital structure to be able to continue as a going concern while maximizing the return to stakeholders. Brookfield Infrastructure’s overall capital strategy remains unchanged from 2016.

The capital structure of Brookfield Infrastructure consists of debt, offset by cash and cash equivalents, and partnership capital comprised of issued capital and accumulated gains.

US$ MILLIONS	2017			2016
Subsidiary and corporate borrowings	$	10,164		$	8,326
Preferred shares	20			20
Cash and cash equivalents(1)	(459		)	(789		)
Net debt	9,725			7,557
Total partnership capital	13,474			9,644
Total capital and net debt	$	23,199		$	17,201
Net debt to capitalization ratio	42		%	44		%

(1) Includes marketable securities.

The Board, along with senior management of the Service Provider, reviews Brookfield Infrastructure’s capital structure and as part of this review, considers the cost of capital and the risk associated with each class of capital.

Brookfield Infrastructure manages its debt exposure by financing its operations on a non-recourse basis with prudent levels of debt, ensuring a diversity of funding sources as well as laddering its maturity profile to minimize refinance risk. Brookfield Infrastructure also borrows in the currency where the asset operates, where possible, in order to hedge its currency risk.

Generally, Brookfield Infrastructure’s equity strategy is to issue equity in conjunction with acquisitions or outsized organic growth initiatives at our businesses. However, Brookfield Infrastructure may also issue equity opportunistically to enhance its liquidity to pursue investments. Brookfield Infrastructure maintains active shelf registrations to enable it to issue securities in both the U.S. and Canadian markets.

Brookfield Infrastructure’s financing plan is to fund its recurring growth capital expenditures with cash flow generated by its operations after maintenance capital expenditure, as well as debt financing that is sized to maintain its credit profile. To fund large scale development projects and acquisitions, Brookfield Infrastructure will evaluate a variety of capital sources including proceeds from selling non-core assets, equity and debt financing. Our partnership will seek to raise additional equity if Brookfield Infrastructure believes it can earn returns on these investments in excess of the cost of the incremental partnership capital.

Brookfield Infrastructure F-90

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

As disclosed within Note 18, Borrowings, Brookfield Infrastructure has various loan facilities in place. In certain cases, the facilities have financial covenants which are generally in the form of interest coverage ratios and leverage ratios. Brookfield Infrastructure does not have any market capitalization covenants attached to any of its borrowings, nor does it have any other externally imposed capital requirements.

During the years ended December 31, 2017 and 2016, there were no breaches of any loan covenants within Brookfield Infrastructure.

Brookfield Infrastructure attempts to maintain sufficient financial liquidity at all times so that it is able to participate in attractive opportunities as they arise, better withstand sudden adverse changes in economic circumstances and maintain its distribution of FFO to unitholders. Brookfield Infrastructure’s principal sources of liquidity are cash flows from its operations, undrawn credit facilities and access to public and private capital markets. Brookfield Infrastructure also structures the ownership of its assets to enhance its ability to monetize them to provide additional liquidity, if necessary.

Brookfield Infrastructure’s corporate liquidity as at December 31 was as follows:

US$ MILLIONS(1)	2017			2016
Corporate cash and financial assets	$	205		$	549
Availability under committed credit facilities	2,475			2,475
Draws on credit facility	(789		)	—
Commitments under credit facility	(106		)	(46		)
Corporate liquidity	$	1,785		$	2,978

(1) Corporate level only.

Brookfield Infrastructure’s $1.975 billion committed revolving credit facility and $500 million credit facility with Brookfield are available for investments and acquisitions, as well as general corporate purposes. Commitments under the committed revolving credit facility will be available on a revolving basis until June 30, 2022. All amounts outstanding at that time will be repayable in full. The facility is intended to be a bridge to equity financing rather than a permanent source of capital. At December 31, 2017, there was $789 million drawn on this facility (2016: $nil) and $106 million was committed to letters of credit (2016: $46 million). Subsequent to December 31, 2017, we cancelled letters of credit issued by our subsidiaries which amounted to $59 million.

F-91 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

The following tables detail the contractual maturities for Brookfield Infrastructure’s financial liabilities. The tables reflect the undiscounted cash flows of financial liabilities based on the earliest date on which Brookfield Infrastructure can be required to pay. The tables include both interest and principal cash flows:

	Less than 1 year		1-2 years		2-5 years		5+ years		Total contractual cash flows
December 31, 2017
US$ MILLIONS
Accounts payable and other liabilities	$	646	$	45	$	59	$	293	$	1,043
Corporate borrowings	99		—		1,445		557		2,101
Non-recourse borrowings	372		571		2,043		5,101		8,087
Financial liabilities	237		58		930		88		1,313
Interest Expense:
Corporate borrowings	49		47		106		25		227
Non-Recourse borrowings	381		348		864		1,343		2,936

	Less than 1 year		1-2 years		2-5 years		5+ years		Total contractual cash flows
December 31, 2016
US$ MILLIONS
Accounts payable and other liabilities	$	540	$	34	$	26	$	186	$	786
Corporate borrowings	295		93		279		335		1,002
Non-recourse borrowings	286		233		1,708		5,109		7,336
Financial liabilities	229		29		49		74		381
Interest Expense:
Corporate borrowings	40		29		64		14		147
Non-recourse borrowings	361		342		871		1,450		3,024

(b) Market Risk

Market risk is defined for these purposes as the risk that the fair value or future cash flows of a financial instrument held by Brookfield Infrastructure will fluctuate because of the change in market prices. Market risk includes the risk of changes in interest rates, foreign currency exchange rates and equity prices.

Brookfield Infrastructure seeks to minimize the risks associated with foreign currency exchange rates and interest rates primarily through the use of derivative financial instruments to hedge these risk exposures. The use of financial derivatives is governed by Brookfield Infrastructure’s Treasury Policy. Brookfield Infrastructure does not enter into, or trade financial instruments, including derivative financial instruments, for speculative purposes.

The Treasury Policy provides written principles on the use of financial derivatives. With respect to its treasury policy, the Service Provider performs the monitoring, review and approval role and report to the Board on a regular basis.

Brookfield Infrastructure F-92

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Financial instruments held by Brookfield Infrastructure that are subject to market risk include other financial assets, borrowings, derivative instruments, such as interest rate and foreign currency contracts, and marketable securities. Our partnership is exposed to equity price risks arising from marketable securities. As at December 31, 2017 the balance of the portfolio was $85 million (2016: $3 million), a 10% change in the value of the portfolio would impact our equity by $9 million and result in an impact on the Consolidated Statement of Comprehensive Income of $9 million.

Interest Rate Risk Management

Brookfield Infrastructure’s primary objectives with respect to interest rate risk management are to ensure that:

• Brookfield Infrastructure is not exposed to interest rate movements that could adversely impact its ability to meet financial obligations;

• Earnings and distributions are not adversely affected;

• Volatility of debt servicing costs is managed within acceptable parameters; and

• All borrowing covenants under various borrowing facilities, including interest coverage ratios, are complied with.

To achieve these objectives, in general terms, Brookfield Infrastructure’s funding mix comprises both fixed and floating rate debt. Fixed rate debt is achieved either through fixed rate debt funding or through the use of financial derivate instruments. In addition, where possible, interest rate risk is minimized by matching the terms of interest rate swap contracts in regulated businesses to the term of the rate period, thus providing natural hedges.

The sensitivity analyses below reflect Brookfield Infrastructure’s exposure to interest rates for both derivative and non-derivative instruments at the reporting date, assuming that a 10 basis point increase or decrease in rates takes place at the beginning of the financial year and is held constant throughout the reporting period. The sensitivity analyses assume a 10 basis point change to reflect the current methodology employed by Brookfield Infrastructure in assessing interest rate risk. Such parallel shift in the yield curve by 10 basis points would have had the following impact, assuming all other variables were held constant:

	2017					2016						2015
US$ MILLIONS	10 bp decrease			10 bp increase		10 bp decrease			10 bp increase			10 bp decrease			10 bp increase
Net income (loss)	$	—		$	—	$	1		$	(1	)	$	2		$	(2	)
Other comprehensive (loss) income	(1		)	1		(1		)	1			(2		)	2

F-93 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Foreign Currency Risk Management

Brookfield Infrastructure has exposure to foreign currency risk in respect of currency transactions, the value of Brookfield Infrastructure’s net investment, cash flows and capital expenditures that are denominated outside of the U.S. Brookfield Infrastructure’s approach to foreign currency risk management is:

• Brookfield Infrastructure leverages any natural hedges that may exist within its operations;

• Brookfield Infrastructure utilizes local currency debt financing to the extent possible; and

• Brookfield Infrastructure may utilize derivative contracts to the extent that natural hedges are insufficient.

The tables below set out Brookfield Infrastructure’s currency exposure at December 31, 2017, 2016 and 2015:

2017
US$ MILLIONS	USD			AUD		GBP		BRL		CLP		CAD			EUR		COP		PEN		INR		NZD		Total
Assets:
Current assets	$	358		$	276	$	151	$	322	$	85	$	78		$	—	$	68	$	100	$	57	$	17	$	1,512
Non-current assets	4,400			5,770		4,431		8,184		1,117		814			836		764		1,356		256		37		27,965
	$	4,758		$	6,046	$	4,582	$	8,506	$	1,202	$	892		$	836	$	832	$	1,456	$	313	$	54	$	29,477
Liabilities:
Current liabilities	$	641		$	227	$	414	$	73	$	59	$	55		$	—	$	26	$	18	$	30	$	21	$	1,564
Non-current liabilities	3,093			3,983		2,614		2,015		989		443			—		438		673		185		6		14,439
	3,734			4,210		3,028		2,088		1,048		498			—		464		691		215		27		16,003
Non-controlling interest—in operating subsidiaries and preferred unitholders	602			417		396		3,082		75		891			—		302		644		60		1		6,470
Non-controlling interest—Redeemable Partnership Units held by Brookfield	(50		)	407		332		959		23		28			240		19		35		11		8		2,012
Net investment	$	472		$	1,012	$	826	$	2,377	$	56	$	(525	)	$	596	$	47	$	86	$	27	$	18	$	4,992

Brookfield Infrastructure F-94

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

2016
US$ MILLIONS	USD		AUD		GBP		BRL		CLP		CAD		EUR		COP		PEN		INR		NZD		Total
Assets:
Current assets	$	849	$	214	$	127	$	42	$	102	$	18	$	—	$	55	$	127	$	52	$	46	$	1,632
Non-current assets	3,744		5,542		3,739		1,895		1,070		677		718		700		1,260		265		33		19,643
	$	4,593	$	5,756	$	3,866	$	1,937	$	1,172	$	695	$	718	$	755	$	1,387	$	317	$	79	$	21,275
Liabilities:
Current liabilities	$	833	$	206	$	262	$	23	$	50	$	35	$	—	$	27	$	27	$	36	$	16	$	1,515
Non-current liabilities	1,636		3,764		2,243		—		941		309		—		369		636		186		32		10,116
	2,469		3,970		2,505		23		991		344		—		396		663		222		48		11,631
Non-controlling interest—in operating subsidiaries and preferred unitholders	919		370		333		189		89		261		—		294		610		58		23		3,146
Non-controlling interest—Redeemable Partnership Units held by Brookfield	344		405		294		493		26		26		206		19		33		11		3		1,860
Net investment	$	861	$	1,011	$	734	$	1,232	$	66	$	64	$	512	$	46	$	81	$	26	$	5	$	4,638

2015
US$ MILLIONS	USD		AUD		GBP		BRL		CLP		CAD		EUR		COP		Total
Assets:
Current assets	$	234	$	380	$	470	$	6	$	126	$	291	$	—	$	46	$	1,553
Non-current assets	2,485		5,816		3,927		1,020		1,052		636		618		629		16,182
	$	2,719	$	6,196	$	4,397	$	1,026	$	1,178	$	927	$	618	$	675	$	17,735
Liabilities:
Current liabilities	$	502	$	103	$	434	$	—	$	30	$	122	$	—	$	20	$	1,210
Non-current liabilities	1,714		3,745		2,312		—		902		334		—		342		9,349
	2,216		3,848		2,746		—		932		456		—		362		10,559
Non-controlling interest—in operating subsidiaries and preferred unitholders	377		269		385		141		121		248		—		256		1,797
Non-controlling interest—Redeemable Partnership Units held by Brookfield	36		587		357		249		35		63		175		16		1,518
Net investment	$	90	$	1,492	$	909	$	636	$	90	$	160	$	443	$	41	$	3,861

The following tables detail Brookfield Infrastructure’s sensitivity to a 10% increase and decrease in the U.S. dollar against the relevant foreign currencies, with all other variables held constant as at reporting date. 10% is the sensitivity rate used when reporting foreign currency risk internally. The sensitivity analysis is performed as follows:

• Outstanding foreign currency denominated monetary items (excluding foreign exchange derivative contracts) are adjusted at period end for a 10% change in foreign currency rates from the rate at which they are translated;

• Foreign currency derivative contracts are measured as the change in fair value of the derivative as a result of a 10% change in the spot currency rate; and

F-95 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

• The impact on net income results from performing a sensitivity of a 10% change in foreign exchange rates applied to the profit or loss contribution from foreign operations (after considering the impact of foreign exchange derivative contracts).

	Impact on Net Income
	2017						2016						2015
US$ MILLIONS	-10%			10%			-10%			10%			-10%		10%
USD/AUD	$	(18	)	$	18		$	(2	)	$	2		$	8	$	(8	)
USD/EUR	(9		)	9			(8		)	8			5		(5		)
USD/GBP	(3		)	3			(6		)	6			5		(5		)
USD/BRL	21			(21		)	14			(14		)	—		—
USD/CLP	1			(1		)	—			—			1		(1		)
USD/CAD	(1		)	1			(1		)	1			1		(1		)
USD/PEN	—			—			—			—			—		—
USD/INR	—			—			—			—			—		—

	Impact on Partnership Capital
	2017					2016					2015
US$ MILLIONS	-10%		10%			-10%		10%			-10%		10%
USD/AUD	$	—	$	—		$	—	$	—		$	24	$	(24	)
USD/EUR	—		—			35		(35		)	18		(18		)
USD/GBP	—		—			—		—			23		(23		)
USD/CLP	8		(8		)	10		(10		)	13		(13		)
USD/COP	7		(7		)	6		(6		)	6		(6		)
USD/BRL	334		(334		)	172		(172		)	89		(89		)
USD/CAD	—		—			—		—			11		(11		)
USD/PEN	12		(12		)	11		(11		)	—		—
USD/INR	4		(4		)	4		(4		)	—		—

(c) Credit Risk Management

Credit risk is the risk of loss due to the failure of a borrower or counterparty to fulfill its contractual obligations.

From a treasury perspective, counterparty credit risk is managed through the establishment of authorized counterparty credit limits which are designed to ensure that Brookfield Infrastructure only deals with credit worthy counterparties and that counterparty concentration is addressed and the risk of loss is mitigated. Credit limits are sufficiently low to restrict Brookfield Infrastructure from having credit exposures concentrated with a single counterparty but rather encourages spreading such risks among several parties. The limits are set at levels that reflect Brookfield Infrastructure’s scale of activity and allow it to manage its treasury business competitively.

Brookfield Infrastructure F-96

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

Brookfield Infrastructure does not have any significant credit risk exposure to any single counterparty or any group of counterparties having similar characteristics. The credit risk on liquid funds and derivative financial instruments is limited because the counterparties are banks with high credit ratings assigned by international credit rating agencies. Exposure to credit risk is limited to the carrying amount of the assets on the Consolidated Statements of Financial Position.

NOTE 35.  CAPITAL MANAGEMENT

Our partnership’s approach to capital management is focused on maximizing returns to unitholders and ensuring capital is deployed in a manner consistent with achieving our investment return objectives.

Invested Capital, which tracks the amount of capital that has been contributed to our partnership, is a measure we utilize to assess returns on capital deployed, relative to targeted returns. Investment decisions are based on, amongst other measures and factors, targeted returns on Invested Capital of 12% to 15% annually over the long-term. We measure return on Invested Capital as adjusted funds from operations (“AFFO”), less estimated¹ returns of capital on operations that are not perpetual in life, divided by the weighted average Invested Capital for the period.

We define Invested Capital as partnership capital removing the impact of the following items: non-controlling interest - in operating subsidiaries, retained earnings or deficit, accumulated other comprehensive income and ownership changes.

1. Estimated based on the discounted cash flow models which we utilize in order to value and measure the performance of our operations.

US$ MILLIONS	2017			2016
Partnership Capital	$	13,474		$	9,644
Remove impact of the following items since inception:
Non-controlling interest - in operating subsidiaries	(5,875		)	(2,771		)
Deficit	1,366			697
Accumulated other comprehensive income	(1,257		)	(1,074		)
Ownership changes	(109		)	(109		)
Invested Capital	$	7,599		$	6,387

The following table presents the change in Invested Capital during year ended December 31, 2017:

US$ MILLIONS	2017		2016
Opening balance	$	6,387	$	5,452
Issuance of preferred units	220		186
Issuance of limited partnership units and redeemable partnership units	992		749
Ending balance	$	7,599	$	6,387
Weighted Average Invested Capital	$	6,885	$	5,592

F-97 Brookfield Infrastructure

BROOKFIELD INFRASTRUCTURE PARTNERS L.P.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

As of December 31, 2017 and 2016 and for the years ended December 31, 2017, 2016 and 2015

NOTE 36.  SUPPLEMENTAL CASH FLOW INFORMATION

	For the Year Ended December 31,
US$ MILLIONS	2017		2016		2015
Interest paid	$	451	$	366	$	332
Income taxes paid	$	132	$	33	$	22

Amounts paid and received for interest were reflected as operating cash flows in the Consolidated Statements of Cash Flows. Interest paid is net of debt related hedges.

Amounts paid for income taxes were reflected as either operating cash flows or investing cash flows in the Consolidated Statements of Cash Flows depending upon the nature of the underlying transaction.

Details of “Changes in non-cash working capital, net” on the Consolidated Statements of Cash Flows are as follows:

	For the Year Ended December 31,
US$ MILLIONS	2017			2016		2015
Accounts receivable	$	(31	)	$	31	$	27
Prepayments and other	4			3		1
Accounts payable and other	158			11		(110		)
Changes in non-cash working capital, net	$	131		$	45	$	(82	)

Brookfield Infrastructure F-98

EX-12.1

Exhibit 12.1

CERTIFICATION

I, Samuel Pollock, certify that:

1. I have reviewed this Annual Report on Form 20-F of Brookfield Infrastructure Partners L.P.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the period covered by the Annual Report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: March 13, 2018

/s/ Samuel Pollock

Name:Samuel Pollock

Title:CEO, Brookfield Infrastructure Group L.P.

EX-12.2

Exhibit 12.2

CERTIFICATION

I, Bahir Manios, certify that:

1. I have reviewed this Annual Report on Form 20-F of Brookfield Infrastructure Partners L.P.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the period covered by the Annual Report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: March 13, 2018

/s/ Bahir Manios

Name:Bahir Manios

Title:CFO, Brookfield Infrastructure Group L.P.

EX-13.1

Exhibit 13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED

PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned, who is carrying out the functions of chief executive officer for Brookfield Infrastructure Partners L.P. (the “Partnership”) pursuant to an Amended and Restated Master Services Agreement, dated March 13, 2015, among Brookfield Asset Management Inc., the Partnership, Brookfield Infrastructure L.P. and others, hereby certifies, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to his knowledge, as filed with the Securities and Exchange Commission on the date hereof, (i) the annual report of the Partnership on Form 20-F for the fiscal year ended December 31, 2017 (the “Annual Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and (ii) the information contained in the Annual Report fairly presents in all material respects the financial condition and results of operations of the Partnership.

Dated: March 13, 2018

/s/ Samuel Pollock

Samuel Pollock

CEO, Brookfield Infrastructure Group L.P.

EX-13.2

Exhibit 13.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED

PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned, who is carrying out the functions of chief financial officer for Brookfield Infrastructure Partners L.P. (the “Partnership”) pursuant to an Amended and Restated Master Services Agreement, dated March 13, 2015, among Brookfield Asset Management Inc., the Partnership, Brookfield Infrastructure L.P. and others, hereby certifies, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to his knowledge, as filed with the Securities and Exchange Commission on the date hereof, (i) the annual report of the Partnership on Form 20-F for the fiscal year ended December 31, 2017 (the “Annual Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and (ii) the information contained in the Annual Report fairly presents in all material respects the financial condition and results of operations of the Partnership.

Dated:  March 13, 2018

/s/ Bahir Manios

Bahir Manios

CFO, Brookfield Infrastructure Group L.P.

EX-15.1

Exhibit 15.1

Deloitte LLP

Bay Adelaide East

8 Adelaide Street West, Suite 200

Toronto ON M5H 0A9

Canada

Tel: 416-601-6150

Fax: 416-601-6151

www.deloitte.ca

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in Registration Statements No. 333-213263 and No. 333-167860 on Form F-3 of our reports dated March 13, 2018, relating to the consolidated financial statements of Brookfield Infrastructure Partners L.P., and the effectiveness of Brookfield Infrastructure Partners L.P.’s internal control over financial reporting, appearing in this Annual Report on Form 20-F of Brookfield Infrastructure Partners L.P. for the year ended December 31, 2017.

/s/ Deloitte LLP

Chartered Professional Accountants

Licensed Public Accountants

Toronto, Canada

March 13, 2018

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Document and Entity Information	12 Months Ended
	Dec. 31, 2017 shares
Document And Entity Information [Abstract]
Entity Registrant Name	Brookfield Infrastructure Partners L.P.
Entity Central Index Key	0001406234
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	20-F
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding	276,572,900
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No

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CONSOLIDATED STATEMENTS OF FINANCIAL POSITION - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 374	$ 786
Financial assets	192	241
Accounts receivable and other	838	504
Inventory	108	101
Current assets	1,512	1,632
Property, plant and equipment	9,937	8,656
Intangible assets	9,894	4,465
Investments in associates and joint ventures	5,572	4,727
Investment properties	192	154
Goodwill	1,301	502
Financial assets	730	900
Other assets	273	165
Deferred income tax asset	66	74
Total assets	29,477	21,275
Liabilities
Accounts payable and other	864	712
Corporate borrowings	99	295
Non-recourse borrowings	364	279
Financial liabilities	237	229
Current liabilities	1,564	1,515
Corporate borrowings	2,002	707
Non-recourse borrowings	7,699	7,045
Financial liabilities	1,076	152
Other liabilities	793	580
Deferred income tax liability	2,849	1,612
Preferred shares	20	20
Total liabilities	16,003	11,631
Partnership capital
Limited partners	4,967	4,611
General partner	25	27
Non-controlling interest attributable to:
Redeemable Partnership Units held by Brookfield	2,012	1,860
Interest of others in operating subsidiaries	5,875	2,771
Preferred unitholders	595	375
Total partnership capital	13,474	9,644
Total liabilities and partnership capital	$ 29,477	$ 21,275

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CONSOLIDATED STATEMENTS OF OPERATING RESULTS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016		Dec. 31, 2015
Profit or loss [abstract]
Revenues	$ 3,535	$ 2,115		$ 1,855
Direct operating costs	(1,509)	(1,063)		(798)
General and administrative expenses	(239)	(166)		(134)
Depreciation and amortization expense	(671)	(447)		(375)
Profit (loss) from operating activities	1,116	439		548
Interest expense	(428)	(392)		(367)
Share of earnings from investments in associates and joint ventures	118	248		69
Mark-to-market on hedging items	(66)	74		83
Other income	7	174		54
Income before income tax	747	543		387
Income tax (expense) recovery
Current	(106)	(33)		(22)
Deferred	(67)	18		26
Net income	574	528	[1]	391	[1]
Attributable to:
Limited partners	11	285		169
General partner	113	84		66
Non-controlling interest attributable to:
Redeemable Partnership Units held by Brookfield	1	118		66
Interest of others in operating subsidiaries	$ 449	$ 41		$ 90
Basic and diluted (loss) earnings per unit attributable to:
Limited partners	$ (0.04)	$ 1.13		$ 0.69

[1] Certain net income allocations have been reclassified to provide comparability with the current year consolidated statements of partnership capital.

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016		Dec. 31, 2015
Statement of comprehensive income [abstract]
Net income	$ 574	$ 528	[1]	$ 391	[1]
Items that will not be reclassified subsequently to profit or loss:
Revaluation of property, plant and equipment	418	335		646
Unrealized actuarial gains (losses)	8	(49)		26
Taxes on the above items	(206)	(83)		(131)
Equity accounted investments	259	199		173
Other comprehensive income that will not be reclassified to profit or loss, net of tax	479	402		714
Items that may be reclassified subsequently to profit or loss:
Foreign currency translation	38	(37)		(928)
Cash flow hedge	137	(1)		(41)
Net investment hedge	(266)	169		89
Available-for-sale securities	5	9		(33)
Taxes on the above items	6	8		(10)
Equity accounted investments	(76)	26		7
Other comprehensive income that will be reclassified to profit or loss, net of tax	(156)	174		(916)
Total other comprehensive income (loss)	323	576		(202)
Comprehensive income	897	1,104		189
Attributable to:
Limited partners	139	643		83
General partner	112	88		65
Non-controlling interest attributable to:
Redeemable Partnership Units held by Brookfield	57	265		34
Interest of others in operating subsidiaries	$ 589	$ 108		$ 7

[1] Certain net income allocations have been reclassified to provide comparability with the current year consolidated statements of partnership capital.

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CONSOLIDATED STATEMENTS OF PARTNERSHIP CAPITAL - USD ($) $ in Millions		Total	Non-controlling interest—in operating subsidiaries	Preferred Unitholders Capital	Limited Partners	Limited Partners Partners' capital	Limited Partners (Deficit) Retained earnings	Limited Partners Ownership Changes	Limited Partners Accumulated Other Comprehensive Income	[1]	General Partner	General Partner Partners' capital	General Partner (Deficit) Retained earnings	General Partner Accumulated Other Comprehensive Income	[1]	Non-Controlling Interest—Redeemable Partnership Units held by Brookfield	Non-Controlling Interest—Redeemable Partnership Units held by Brookfield Partners' capital	Non-Controlling Interest—Redeemable Partnership Units held by Brookfield (Deficit) Retained earnings	Non-Controlling Interest—Redeemable Partnership Units held by Brookfield Ownership Changes	Non-Controlling Interest—Redeemable Partnership Units held by Brookfield Accumulated Other Comprehensive Income	[1]
Balance as at Dec. 31, 2014		$ 6,322	$ 1,444	$ 0	$ 3,533	$ 3,201	$ (400)	$ 77	$ 655		$ 24	$ 19	$ 0	$ 5		$ 1,321	$ 1,178	$ (170)	$ 30	$ 283
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	[2]	391	90		169		169				66		66			66		66
Other comprehensive income (loss)		(202)	(83)		(86)				(86)		(1)			(1)		(32)				(32)
Comprehensive income		189	7	0	83		169		(86)		65		66	(1)		34		66		(32)
Unit issuance (note 26)		932		189	582	582										350	350
Unit repurchases (note 26)		(67)			(67)	(67)
Partnership distributions (note 28)		(543)		(3)	(339)		(339)				(66)		(66)			(138)		(138)
Partnership preferred distributions (note 28)	[2]	(3)			(3)		(3)
Acquisition of subsidiaries (note 5)		347	347
Subsidiary distributions to non-controlling interest		(91)	(91)
Disposition of interests (note 11)		(99)	(99)				8		(8)									3		(3)
Preferred unit issuance (note 26)		189		189
Other items (note 26)		0			49		6	49	(6)							(49)		(6)	(49)	6
Balance as at Dec. 31, 2015		7,176	1,608	189	3,838	3,716	(559)	126	555		23	19	0	4		1,518	1,528	(245)	(19)	254
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	[2]	528	41	0	285		285				84		84			118		118
Other comprehensive income (loss)		576	67		358				358		4			4		147				147
Comprehensive income		1,104	108	0	643		285		358		88		84	4		265		118		147
Unit issuance (note 26)		755		186	505	505										250	250
Unit repurchases (note 26)		(6)			(6)	(6)
Partnership distributions (note 28)		(615)		(13)	(377)		(377)				(84)		(84)			(154)		(154)
Partnership preferred distributions (note 28)	[2]	(13)			(9)		(9)									(4)		(4)
Acquisition of subsidiaries (note 5)		1,241	1,241
Subsidiary distributions to non-controlling interest		(169)	(169)
Disposition of interests (note 11)		(24)	(24)
Preferred unit issuance (note 26)		186		186
Other items (note 26)		9	7		17		177	17	(177)				1	(1)		(15)		70	(15)	(70)
Balance as at Dec. 31, 2016		9,644	2,771	375	4,611	4,215	(483)	143	736		27	19	1	7		1,860	1,778	(215)	(34)	331
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income		574	449		11		11				113		113			1		1
Other comprehensive income (loss)		323	140		128				128		(1)			(1)		56				56
Comprehensive income		897	589	0	139		11		128		112		113	(1)		57		1		56
Unit issuance (note 26)		992		220	692	692										300	300
Unit repurchases (note 26)						0
Partnership distributions (note 28)		(764)		(30)	(459)		(459)				(114)		(114)			(191)		(191)
Partnership preferred distributions (note 28)		(30)			(22)		(22)									(8)		(8)
Acquisition of subsidiaries (note 5)		3,523	3,523
Subsidiary distributions to non-controlling interest		(831)	(831)
Disposition of interests (note 11)		(177)	(177)
Preferred unit issuance (note 26)		220		220
Other items (note 26)		0			6			6								(6)			(6)
Balance as at Dec. 31, 2017		$ 13,474	$ 5,875	$ 595	$ 4,967	$ 4,907	$ (953)	$ 149	$ 864		$ 25	$ 19	$ 0	$ 6		$ 2,012	$ 2,078	$ (413)	$ (40)	$ 387

[1] Refer to Note 27, Accumulated Other Comprehensive Income (Loss) for an analysis of accumulated other comprehensive income (loss) by item.

[2] Certain net income allocations have been reclassified to provide comparability with the current year consolidated statements of partnership capital.

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CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)		Dec. 31, 2015 USD ($)
Operating Activities
Net income	$ 574	$ 528	[1]	$ 391	[1]
Adjusted for the following items:
Earnings from investments in associates and joint ventures, net of distributions received	(52)	(202)		18
Depreciation and amortization expense	671	447		375
Mark-to-market on hedging items, provisions and other	90	(47)		(44)
Deferred income tax expense (recovery)	67	(18)		(26)
Changes in non-cash working capital, net	131	45		(82)
Cash from operating activities	1,481	753		632
Investing Activities
Acquisition of subsidiaries, net of cash acquired	(4,223)	(520)		(54)
Disposal of subsidiaries, net of cash disposed	0	353		28
Additions of investments in associates and joint ventures	(620)	(887)		(681)
Purchase of long lived assets	(714)	(690)		(520)
Disposal of long lived assets	47	7		10
Purchase of financial assets	(318)	(191)		(1,724)
Sale of financial assets and other	258	727		376
Net settlement of foreign exchange hedging items	(151)	143		219
Cash used by investing activities	(5,721)	(1,058)		(2,346)
Financing Activities
Distributions to general partner	(114)	(84)		(66)
Distributions to other unitholders	(680)	(544)		(480)
Subsidiary distributions to non-controlling interest	(831)	(169)		(91)
Capital provided by non-controlling interest	2,847	835		302
Capital provided to non-controlling interest	0	(51)		0
Proceeds from corporate borrowings	537	0		738
Repayment of corporate borrowings	(306)	0		0
Proceeds from corporate credit facility	2,403	2,316		823
Repayment of corporate credit facility	(1,614)	(2,723)		(662)
Proceeds from subsidiary borrowings	668	1,406		348
Repayment of subsidiary borrowings	(308)	(984)		(295)
Proceeds from other financing activities	0	0		131
Repayment of other financing activities	0	(38)		(38)
Preferred units issued	220	186		189
Partnership units issued, net of issuance costs	992	755		932
Partnership units repurchased	0	(6)		(67)
Cash from financing activities	3,814	899		1,764
Cash and cash equivalents
Change during the year	(426)	594		50
Impact of foreign exchange on cash	14	(7)		(32)
Cash reclassified as held for sale	0	0		(8)
Balance, beginning of year	786	199		189
Balance, end of year	$ 374	$ 786		$ 199

[1] Certain net income allocations have been reclassified to provide comparability with the current year consolidated statements of partnership capital.

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ORGANIZATION AND DESCRIPTION OF THE BUSINESS

12 Months Ended

Dec. 31, 2017

Corporate Information And Statement Of IFRS Compliance [Abstract]

ORGANIZATION AND DESCRIPTION OF THE BUSINESS

ORGANIZATION AND DESCRIPTION OF THE BUSINESS

Brookfield Infrastructure Partners L.P. (our “partnership” and, together with its subsidiaries and operating entities, “Brookfield Infrastructure”) owns and operates utility, transport, energy and communications infrastructure businesses in North and South America, Europe and the Asia Pacific region. Our partnership was formed as a limited partnership established under the laws of Bermuda, pursuant to a limited partnership agreement dated May 17, 2007, as amended and restated. Our partnership is a subsidiary of Brookfield Asset Management Inc. (“Brookfield”). Our partnership’s units are listed on the New York Stock Exchange and the Toronto Stock Exchange under the symbols “BIP” and “BIP.UN”, respectively. Our cumulative Class A preferred limited partnership units, Series 1, Series 3, Series 5, Series 7 and Series 9 are listed on the Toronto Stock Exchange under the symbols “BIP.PR.A”, “BIP.PR.B”, “BIP.PR.C”, “BIP.PR.D” and “BIP.PR.E”, respectively. Our partnership’s registered office is 73 Front Street, Hamilton, HM12, Bermuda.

In these notes to the consolidated financial statements, references to “units” are to the limited partnership units in our partnership other than the preferred units, references to our “preferred units” are to preferred limited partnership units in our partnership and references to our “unitholders” and “preferred unitholders” are to the holders of our units and preferred units, respectively. References to “Class A Preferred Units”, “Series 1 Preferred Units”, “Series 3 Preferred Units”, “Series 5 Preferred Units”, “Series 7 Preferred Units” and “Series 9 Preferred Units” are to cumulative Class A preferred limited partnership units, cumulative Class A preferred limited partnership units, Series 1, cumulative Class A preferred limited partnership units, Series 3, cumulative Class A preferred limited partnership units, Series 5, cumulative Class A preferred limited partnership units, Series 7, and cumulative Class A preferred limited partnership units, Series 9 in our partnership, respectively.

On September 14, 2016, we completed a three-for-two split of our units by way of a subdivision of units (the “Unit Split”), whereby unitholders received an additional one-half of a unit for each unit held, resulting in the issuance of an approximately 115 million additional units. Our preferred units were not affected by the Unit Split. All historical per unit disclosures have been adjusted to effect for the change in units due to the Unit Split.

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SUBSIDIARIES

12 Months Ended

Dec. 31, 2017

Interests In Other Entities [Abstract]

SUBSIDIARIES

SUBSIDIARIES

The following provides information about our partnership’s wholly-owned subsidiaries as of December 31, 2017 and 2016:

			Ownership interest (%)
		Country of incorporation
Defined Name	Name of entity		2017	2016
Transport
Australian rail operation	Arc Infrastructure Holdings No. 1 Pty Ltd	Australia	100	100
Energy
Australian energy distribution operation	Tas Gas Networks Pty Ltd	Australia	100	100

The following table presents details of non-wholly owned subsidiaries of our partnership:

			Ownership Interest (%)		Voting interest (%)
		Country of incorporation
Defined Name	Name of entity		2017	2016	2017	2016
Utilities
U.K. regulated distribution operation	BUUK Infrastructure Holdings Limited	U.K.	80	80	80	80
Australian regulated terminal operation	DBCT Management Pty Ltd(1)	Australia	71	71	100	100
Colombian regulated distribution operation	Empresa de Energia de Boyaca S.A.(1)	Colombia	17	17	100	100
Brazilian regulated gas transmission operation	Nova Transportadora do Sudeste S.A. (1),(2)	Brazil	28	—	90	—
Transport
U.K. ports operation	Brookfield Port Acquisitions (UK) Limited(1)	U.K.	59	59	100	100
Australian ports operation	Linx Cargo Care Group Pty Ltd(1),(3)	Australia	27	27	67	67
Chilean toll roads	Sociedad Concesionaria Vespucio Norte Express S.A.(1)	Chile	51	51	89	89
Indian toll roads	BIF India Holdings Pte Ltd(1),(4)	Singapore	40	40	93	93
Peruvian toll roads	Rutas de Lima S.A.C(1),(5)	Peru	17	17	57	57
Energy
North American gas storage operation(6)	Warwick Gas Storage L.P.(1)	Canada	25	25	100	100
Canadian district energy operation	Enwave Energy Corporation(1)	Canada	25	25	100	100
U.S. district energy operation	Enwave USA(1)	U.S.	40	40	100	100
North American gas storage operation(6)	Lodi Gas Storage(1)	U.S.	40	40	100	100
North American gas storage operation(6)	Rockpoint Gas Storage Partners  L.P.(1),(7)	U.S.	40	40	100	100
Corporate & Other
Holding LP	Brookfield Infrastructure L.P.	Bermuda	70	70	100	100

(1) For the above noted subsidiaries, our partnership has entered into voting arrangements to provide our partnership with the ability to direct the relevant activities of the investee. Our partnership controls these investees given that our partnership is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Our partnership exercises judgment to determine the level of variability that will achieve control over an investee, particularly in circumstances where our partnership’s voting interest differs from its ownership interest in an investee. The following were considered to determine whether our partnership controls these investees: the degree of power (if any) held by other investors, the degree of exposure to variability of each investor, the determination of whether any general partner removal rights are substantive and the purpose and design of the investee.

(2) In April 2017, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund (the “consortium”), acquired an effective 28% interest in Nova Transportadora do Sudeste S.A. (“NTS”), a Brazilian regulated gas transmission business, for total consideration of $1.6 billion.

(3) In August 2016, Brookfield Infrastructure expanded its ports business to Australia as it acquired a 27% interest in Linx Cargo Care Group Pty Ltd through a Brookfield-sponsored infrastructure fund, along with institutional partners (the “Brookfield Consortium”) for total consideration of $145 million.

(4) In March 2016, Brookfield Infrastructure acquired a 40% interest in a toll road business in India from Gammon Infrastructure Projects Limited for consideration of $42 million through a Brookfield-sponsored infrastructure fund.

(5) In June 2016, Brookfield Infrastructure acquired a 17% interest in Rutas de Lima S.A.C. for total consideration of $127 million through a Brookfield-sponsored infrastructure fund.

(6) North American gas storage operations include Warwick Gas Storage L.P., Lodi Gas Storage and Rockpoint Gas Storage Partners L.P.

(7) In July 2016, Brookfield Infrastructure acquired a40%interest in Rockpoint Gas Storage Partners L.P. for consideration of$227 millionthrough a Brookfield-sponsored infrastructure fund.

NON-WHOLLY OWNED SUBSIDIARIES

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Financial Position:

	As of December 31, 2017
US$ MILLIONS	Current Assets		Non-Current Assets		Current Liabilities		Non-Current Liabilities		Non-Controlling Interest in Operating Subsidiaries		Partnership Capital(1)
Utilities
U.K. regulated distribution	$	107	$	3,550	$	281	$	2,261	$	217	$	898
Australian regulated terminal	38		2,229		34		2,035		62		136
Colombian regulated distribution	68		764		26		438		302		66
Brazilian regulated gas transmission operation	322		5,990		73		2,015		3,081		1,143
Transport
U.K. port operation	44		880		133		353		179		259
Australian port operation	163		628		101		218		346		126
Chilean toll roads	84		1,116		59		989		75		77
Peruvian toll roads	101		1,356		18		674		644		121
Indian toll roads	58		256		30		185		60		39
Energy
North American gas storage operation	206		1,259		244		409		502		310
Canadian district energy operation	75		699		55		394		243		82
U.S. district energy operation	37		799		19		668		78		71
Corporate & Other
Holding LP and other	127		244		392		2,060		84		(2,165		)
Total	$	1,430	$	19,770	$	1,465	$	12,699	$	5,873	$	1,163

(1) Attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

	As of December 31, 2016
US$ MILLIONS	Current Assets		Non-Current Assets		Current Liabilities			Non-Current Liabilities		Non-Controlling Interest in Operating Subsidiaries		Partnership Capital(1)
Utilities
U.K. regulated distribution	$	65	$	2,985	$	154		$	1,919	$	183	$	794
Australian regulated terminal	27		2,162		(9		)	1,926		70		202
Colombian regulated distribution	55		701		27			369		294		66
Transport
U.K. port operation	42		754		108			324		150		214
Australian port operation	142		587		94			205		315		115
Chilean toll roads	102		1,069		50			941		89		91
Brazilian toll roads	42		466		27			—		189		292
Peruvian toll roads	127		1,261		27			635		610		116
Indian toll roads	52		264		36			186		58		36
Energy
North American gas storage	199		1,141		136			478		452		274
Canadian district energy operation	15		570		13			290		209		73
U.S. district energy operation	43		697		62			537		73		68
Corporate & Other
Holding LP and other	631		377		677			810		79		(558		)
Total	$	1,542	$	13,034	$	1,402		$	8,620	$	2,771	$	1,783

(1) Attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Operating Results:

	Year ended December 31, 2017
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income (loss)			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	385	$	21		$	29		$	114		$	118
Australian regulated terminal operation	301		15			3			35			7
Colombian regulated distribution operation	161		12			38			2			7
Brazilian regulated gas transmission operation	938		349			(160		)	146			(72		)
Transport
U.K. port operation	180		8			21			22			29
Australian port operation	501		(7		)	28			(3		)	9
Chilean toll roads	154		—			7			—			8
Peruvian toll roads	103		12			22			2			5
Indian toll roads	57		(2		)	4			(1		)	3
Energy
North American gas storage operation	149		30			74			18			47
Canadian district energy operation	95		(2		)	39			—			13
U.S. district energy operation	131		10			40			7			26
Corporate & Other
Holding LP and other	22		(3		)	1			(349		)	(410		)
Total	$	3,177	$	443		$	146		$	(7	)	$	(210	)

	Year ended December 31, 2016
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income (loss)			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	347	$	12		$	(14	)	$	79		$	(55	)
Australian regulated terminal operation	299		15			(5		)	46			(12		)
Colombian regulated distribution operation	150		10			45			2			10
Transport
U.K. port operation	178		11			(37		)	20			(52		)
Australian port operation	182		(18		)	(24		)	(7		)	(8		)
Chilean toll roads	127		(9		)	7			(10		)	8
Brazilian toll roads	—		6			38			5			25
Peruvian toll roads	97		(8		)	(7		)	(2		)	(1		)
Indian toll roads	39		(3		)	1			(3		)	—
Energy
North American gas storage operation	100		1			—			1			—
Canadian district energy operation	79		(1		)	31			1			11
U.S. district energy operation	111		(6		)	31			—			20
Corporate & Other
Holding LP and other	15		31			1			31			180
Total	$	1,724	$	41		$	67		$	163		$	126

	Year ended December 31, 2015
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	339	$	21		$	25		$	122		$	101
Australian regulated terminal operation	330		15			(4		)	68			(9		)
Colombian regulated distribution operation	152		13			(26		)	16			(9		)
Transport
U.K. port operation	220		7			13			22			18
Chilean toll roads	113		(7		)	(20		)	(15		)	(21		)
Energy
North American gas storage operation	20		(8		)	5			(12		)	1
Canadian district energy operation	80		—			6			—			2
U.S. district energy operation	114		(6		)	8			(3		)	5
Corporate & Other
Holding LP and other	21		55			(90		)	5			(32		)
Total	$	1,389	$	90		$	(83	)	$	203		$	56

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Cash Flows:

	Cash Flow Activities
	Year ended December 31, 2017									Year ended December 31, 2016
US$ MILLIONS	Operating			Investing			Financing			Operating			Investing			Financing
Utilities
U.K. regulated distribution operation	$	220		$	(343	)	$	129		$	244		$	(487	)	$	245
Australian regulated terminal operation	96			(9		)	(87		)	128			(22		)	(106		)
Colombian regulated distribution operation	7			(22		)	26			17			(18		)	—
Brazilian regulated gas transmission operation	819			83			(839		)	—			—			—
Transport
U.K. port operation	46			(40		)	(10		)	33			(24		)	(14		)
Australian port operation	37			(39		)	12			7			(99		)	154
Chilean toll roads	56			(5		)	(88		)	63			(1		)	(99		)
Brazilian toll roads	—			—			—			2			(70		)	70
Peruvian toll roads	46			(67		)	—			29			25			1
Indian toll roads	30			(7		)	(22		)	(7		)	28			(10		)
Energy
North American gas storage operation	55			(9		)	(76		)	(12		)	6			46
Canadian district energy operation	26			(82		)	102			27			(18		)	(13		)
U.S. district energy operation	24			8			(28		)	26			(33		)	9
Corporate & Other
Holding LP and other	(98		)	(5,089		)	4,721			124			(282		)	618
Total	$	1,364		$	(5,621	)	$	3,840		$	681		$	(995	)	$	901

	Cash Flow Activities
	Year ended December 31, 2015
US$ MILLIONS	Operating			Investing			Financing
Utilities
U.K. regulated distribution operation	$	164		$	(242	)	$	92
Australian regulated terminal operation	103			(37		)	(67		)
New England electricity transmission operation	2			—			(2		)
Colombian regulated distribution operation	16			(6		)	(7		)
Transport
U.K. port operation	19			(66		)	61
Australian port operation	—			—			—
Chilean toll roads	70			—			(38		)
Energy
North American gas storage operation	(3		)	(1		)	1
Canadian district energy operation	22			(16		)	(23		)
U.S. district energy operation	21			(13		)	(7		)
Corporate & Other
Holding LP and other	92			(650		)	554
Total	$	506		$	(1,031	)	$	564

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SIGNIFICANT ACCOUNTING POLICIES

12 Months Ended

Dec. 31, 2017

Corporate Information And Statement Of IFRS Compliance [Abstract]

SIGNIFICANT ACCOUNTING POLICIES

 SIGNIFICANT ACCOUNTING POLICIES

(a) Statement of Compliance

These consolidated financial statements have been prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board (“IFRS”).

The consolidated financial statements were authorized for issue by the Board of Directors on March 13, 2018.

(b) Basis of Preparation

The consolidated financial statements are prepared on a going concern basis. Standards and guidelines not yet effective for the current accounting period are described in Note 3(s), Future Changes in Accounting Policies.

(i) Subsidiaries

These consolidated financial statements include the accounts of our partnership and subsidiaries over which our partnership has control. Subsidiaries are consolidated from the date of acquisition, being the date on which our partnership obtains control, and continue to be consolidated until the date when control is lost. Our partnership (investor) controls an investee when it is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Together, our partnership and its subsidiaries are referred to as “Brookfield Infrastructure” in these financial statements.

Non-controlling interests may be initially measured either at fair value or at the non-controlling interests’ proportionate share of the fair value of the acquiree’s identifiable net assets. The choice of measurement basis is made on an acquisition by acquisition basis. Subsequent to acquisition, the carrying amount of non-controlling interests is the amount of those interests at initial recognition plus the non-controlling interests’ share of subsequent changes in partnership capital in addition to changes in ownership interests. Total comprehensive income is attributed to non-controlling interests, even if this results in the non-controlling interests having a deficit balance.

Holding LP has issued Redeemable Partnership Units held by Brookfield, which may, at the request of the holder, require the Holding LP to redeem the Redeemable Partnership Units for cash consideration equal to the market price of our partnership’s units. This right is subject to our partnership’s right of first refusal which entitles it, at its sole discretion, to elect to acquire any Redeemable Partnership Unit so presented to Holding LP in exchange for one of our partnership’s units subject to certain customary adjustments.

All intercompany balances, transactions, revenues and expenses are eliminated in full.

(ii) Associates and Joint Ventures

Associates and joint ventures are entities over which our partnership has significant influence or joint control. Significant influence is the power to participate in the financial and operating policy decisions of the investee but does not constitute control. Our partnership accounts for investments over which it has significant influence using the equity method, and are recorded as Investments in associates and joint ventures on the Consolidated Statements of Financial Position.

Interests in investments accounted for using the equity method are initially recorded at cost. If the cost of the associate is lower than the proportionate share of the investment’s underlying fair value, our partnership records a gain on the difference between the cost and the underlying fair values of the identifiable net assets of the associate. If the cost of the associate is greater than our partnership’s proportionate share of the underlying fair value, goodwill and other adjustments arising from the purchase price allocation relating to the associate is included in the carrying amount of the investment. Subsequent to initial recognition, the carrying value of our partnership’s interest in an investee is adjusted for our partnership’s share of comprehensive income or loss and distributions from the investee.

Profits or losses resulting from transactions with an associate are recognized in the consolidated financial statements based on the interests of unrelated investors in the associate.

(c) Foreign Currency Translation

The U.S dollar is the functional and presentation currency of Brookfield Infrastructure. Each of Brookfield Infrastructure’s subsidiaries, associates and jointly controlled entities determines its own functional currency and items included in the financial statements of each subsidiary and associate are measured using that functional currency.

Assets and liabilities of foreign operations having a functional currency other than the U.S. dollar are translated at the rate of exchange prevailing at the reporting date and revenues and expenses at average rates during the period. Gains or losses on translation are included as a component of other comprehensive income. On disposal of a foreign operation resulting in the loss of control, the component of other comprehensive income due to accumulated foreign currency translation relating to that foreign operation is reclassified to net income. Gains or losses on foreign currency denominated balances and transactions that are designated as hedges of net investments in these operations are reported in the same manner. On partial disposal of a foreign operation in which control is retained, the proportionate share of the component of other comprehensive income or loss relating to that foreign operation is reclassified to non-controlling interests in that foreign operation.

Foreign currency denominated monetary assets and liabilities are translated using the rate of exchange prevailing at the reporting date and non-monetary assets and liabilities measured at fair value are translated at the rate of exchange prevailing at the date when the fair value was determined. Revenues and expenses are measured at average rates during the period. Gains or losses on translation of these items are included in net income. Gains and losses on transactions which hedge these items are also included in net income or loss. Foreign currency denominated non-monetary assets and liabilities, measured at historic cost, are translated at the rate of exchange at the transaction date.

(d) Business Combinations

Business acquisitions in which control is acquired are accounted for using the acquisition method, other than those between and among entities under common control. The consideration of each acquisition is measured at the aggregate of the fair values at the acquisition date of assets transferred by the acquirer, liabilities incurred or assumed, and equity instruments issued by Brookfield Infrastructure in exchange for control of the acquiree. Acquisition related costs are recognized in the Consolidated Statement of Operating Results as incurred and included in other expenses.

Where applicable, the consideration for the acquisition includes any asset or liability resulting from a contingent consideration arrangement, measured at its acquisition-date fair value. Subsequent changes in fair values are adjusted against the cost of the acquisition where they qualify as measurement period adjustments. All other subsequent changes in the fair value of contingent consideration classified as liabilities will be recognized in the Consolidated Statements of Operating Results, whereas changes in the fair values of contingent consideration classified within partnership capital are not subsequently re-measured.

Where a business combination is achieved in stages, Brookfield Infrastructure’s previously held interests in the acquired entity are remeasured to fair value at the acquisition date, that is, the date Brookfield Infrastructure attains control and the resulting gain or loss, if any, is recognized in the Consolidated Statements of Operating Results. Amounts arising from interests in the acquiree prior to the acquisition date that have previously been recognized in other comprehensive income are reclassified to the Consolidated Statements of Operating Results, where such treatment would be appropriate if that interest were disposed of.

If the initial accounting for a business combination is incomplete by the end of the reporting period in which the combination occurs, Brookfield Infrastructure reports provisional amounts for the items for which the accounting is incomplete. Those provisional amounts are adjusted during the measurement period, or additional assets or liabilities are recognized, to reflect new information obtained about facts and circumstances that existed as of the acquisition date that, if known, would have affected the amounts recognized as of that date.

The measurement period is the period from the date of acquisition to the date Brookfield Infrastructure obtains complete information about facts and circumstances that existed as of the acquisition date. The measurement period is subject to a maximum of one year subsequent to the acquisition date.

If, after reassessment, Brookfield Infrastructure’s interest in the fair value of the acquiree’s identifiable net assets exceeds the sum of the consideration transferred, the amount of any non-controlling interests in the acquiree and the fair value of the acquirer’s previously held equity interest in the acquiree if any, the excess is recognized immediately in profit or loss as a bargain purchase gain.

Contingent liabilities acquired in a business combination are initially measured at fair value at the date of acquisition. At the end of subsequent reporting periods, such contingent liabilities are measured at the higher of the amount that would be recognized in accordance with IAS 37, Provisions, Contingent Liabilities and Contingent Assets (“IAS 37”) and the amount initially recognized less cumulative amortization recognized in accordance with IAS 18, Revenue (“IAS 18”).

(e) Cash and Cash Equivalents

Cash and cash equivalents include cash on hand and short-term investments with original maturities of three months or less.

(f) Accounts Receivable

Trade receivables are recognized initially at fair value and subsequently measured at amortized cost using the effective interest method, less any allowance for uncollectability.

(g) Property, Plant and Equipment

Brookfield Infrastructure uses the revaluation method of accounting for all classes of property, plant and equipment. Property, plant and equipment is initially measured at cost and subsequently carried at its revalued amount, being the fair value at the date of the revaluation less any subsequent accumulated depreciation and any accumulated impairment losses. Revaluations are made on at least an annual basis, and on a sufficient basis to ensure that the carrying amount does not differ significantly from fair value. Where the carrying amount of an asset is increased as a result of a revaluation, the increase is recognized in other comprehensive income or loss and accumulated in equity within the revaluation surplus reserve, unless the increase reverses a previously recognized impairment recorded through net income, in which case that portion of the increase is recognized in net income. Where the carrying amount of an asset is decreased, the decrease is recognized in other comprehensive income to the extent of any balance existing in revaluation surplus in respect of the asset, with the remainder of the decrease recognized in net income. Revaluation gains are included in other comprehensive income, but are not subsequently recycled into profit or loss.

An item of property, plant and equipment and any significant part initially recognized is derecognized upon disposal or when no future economic benefits are expected from its use or disposal. The gain or loss arising on disposal or retirement of an item of property, plant and equipment is determined as the difference between the sales proceeds and the carrying amount of the asset and is recognized in the Consolidated Statements of Operating Results. However, any balance accumulated in revaluation surplus is subsequently recorded in retained earnings when an asset is derecognized and not transferred to profit or loss.

Depreciation of an asset commences when it is available for use. Property, plant and equipment are depreciated on a straight line or declining-balance basis over the estimated useful lives of each component of the assets as follows:

Buildings	Up to 70 years
Transmission stations, towers and related fixtures	Up to 40 years
Leasehold improvements	Up to 50 years
Plant and equipment	Up to 40 years
Network systems	Up to 60 years
Track	Up to 40 years
District energy systems	Up to 50 years
Gas storage assets	Up to 50 years

Depreciation on property, plant and equipment is calculated on a straight-line or declining-balance basis so as to depreciate the net cost of each asset over its expected useful life to its estimated residual value. Leasehold improvements are depreciated over the period of the lease or estimated useful life, whichever is the shorter, using the straight-line method. The estimated useful lives, residual values and depreciation methods are reviewed at the end of each annual reporting period, with the effect of any changes recognized on a prospective basis.

(h) Investment Property

Brookfield Infrastructure uses the fair value method to account for assets classified as investment property. An asset is determined to be an investment property when it is principally held to earn rental income or for capital appreciation, or both. Investment property is initially measured at cost including transaction costs. Subsequent to initial recognition, investment properties are carried at fair value. Gains or losses arising from changes in fair value are included in profit or loss.

Fair values are primarily determined by valuation of the lease term and freehold reversion. An income capitalization approach is used by applying a yield to the rental income of the capitalization rate is reflective of the characteristics, location and market of each property. Fair value is estimated by management of our partnership with due consideration given to observable market inputs, where available.

(i) Asset Impairment

At each reporting date Brookfield Infrastructure assesses whether for assets, other than those measured at fair value with changes in values recorded in profit or loss, there is any indication that such assets are impaired. This assessment includes a review of internal and external factors which includes, but is not limited to, changes in the technological, political, economic or legal environment in which the entity operates in, structural changes in the industry, changes in the level of demand, physical damage and obsolescence due to technological changes. An impairment is recognized if the recoverable amount, determined as the higher of the estimated fair value less costs of disposal or the discounted future cash flows generated from use and eventual disposal from an asset or cash generating unit is less than its carrying value. The projections of future cash flows take into account the relevant operating plans and management’s best estimate of the most probable set of conditions anticipated to prevail. Where an impairment loss subsequently reverses, the carrying amount of the asset or cash generating unit is increased to the lesser of the revised estimate of recoverable amount and the carrying amount that would have been recorded had no impairment loss been recognized previously.

(j) Intangible Assets

Intangible assets acquired in a business combination and recognized separately from goodwill are initially recognized at their fair value at the acquisition date. Brookfield Infrastructure’s intangible assets are comprised primarily of conservancy rights, service concession arrangements and customer order backlogs.

Subsequent to initial recognition, intangible assets acquired in a business combination are reported at cost less accumulated amortization unless indefinite-lived and accumulated impairment losses, on the same basis as intangible assets acquired separately.

Public service concessions that provide Brookfield Infrastructure the right to charge users for a service in which the service and fee is regulated by the grantor are accounted for as an intangible asset under IFRIC 12, Service Concession Arrangements.

Concession arrangements were acquired as part of the acquisition of the Australian regulated terminal operation, Brazilian regulated gas transmission, and Chilean, Indian and Peruvian toll roads and were initially recognized at their fair values. The intangible asset at the Australian regulated terminal operation relates to use of a specific coal port terminal for a contractual length of time and is amortized over the life of the contractual arrangement with 83 years remaining on a straight-line basis. The intangible assets at the Brazilian regulated gas transmission operation relate to pipeline concession contracts, amortized on a straight-line basis over the life of the contractual arrangement. The intangible assets at the Chilean, Indian and Peruvian toll roads relate to the right to operate a road and charge users a specified tariff for a contractual length of time and is amortized over the life of the contractual arrangement with an average of 16, 6, and 25 years remaining, respectively.

The conservancy right was acquired as part of the acquisition of the U.K. port operation and was recorded at its fair value. As a right in perpetuity issued by the Statutory Harbour Authority in the U.K., the conservancy right is classified as having an indefinite life and is subject to an annual impairment assessment.

The customer order backlog was acquired as part of the acquisition of the U.K. regulated distribution operation and was initially recorded at its fair value. The customer order backlog represents the present value of future earnings derived from the build out of contracted connections at the acquisition date of the U.K. regulated distribution operation. The customer order backlog is amortized over its estimated useful life of 15 years.

Gains or losses arising from derecognition of an intangible asset are measured as the difference between the net disposal proceeds and the carrying amount of the asset and are recognized in profit or loss when the asset is derecognized.

(k) Goodwill

Goodwill represents the excess of the price paid for the acquisition of an entity over the fair value of the net tangible and intangible assets and liabilities acquired. Goodwill is allocated to the cash generating unit or units to which it relates. Brookfield Infrastructure identifies cash generating units as identifiable groups of assets that are largely independent of the cash inflows from other assets or groups of assets.

Goodwill is evaluated for impairment annually or more often if events or circumstances indicate there may be impairment. Impairment is determined for goodwill by assessing if the carrying value of a cash generating unit, including the allocated goodwill, exceeds its recoverable amount determined as the greater of the estimated fair value less costs of disposal or the value in use. Impairment losses recognized in respect of a cash generating unit are first allocated to the carrying value of goodwill and any excess is allocated to the carrying amount of assets in the cash generating unit. Any goodwill impairment is charged to profit or loss in the period in which the impairment is identified. Impairment losses on goodwill are not subsequently reversed.

On disposal of a subsidiary, the attributable amount of goodwill is included in the determination of the gain or loss on disposal of the operation.

(l) Revenue Recognition

Revenue is recognized to the extent that it is probable that the economic benefits will flow to Brookfield Infrastructure and the revenue and costs incurred or to be incurred can be reliably measured.

Revenue is measured at the fair value of the consideration received or receivable. Amounts disclosed as revenue are net of estimated customer returns, trade allowances, rebates and other similar allowances.

When our partnership receives a transfer of cash or property, plant and equipment from a customer, it assesses whether the constructed or acquired item of property, plant and equipment meets the definition of an asset in accordance with IFRIC 18, Transfer of Assets from Customers (“IFRIC 18”). If the definition of an asset is met, our partnership recognizes the item of property, plant and equipment at its cost and recognizes revenue or deferred revenue, as applicable, for the same amount based on the appropriate revenue recognition policy.

Brookfield Infrastructure recognizes revenue when the specific criteria have also been met for each of Brookfield Infrastructure’s activities as described below. Cash received by Brookfield Infrastructure from customers is recorded as deferred revenue until revenue recognition criteria are met.

Utilities

Revenue from utilities infrastructure is derived from the transmission of energy and natural gas, the distribution of energy and from Brookfield Infrastructure’s Australian regulated terminal operation. Distribution and transmission revenue is recognized when services are rendered based upon usage or volume during that period. Terminal infrastructure charges are charged at set rates per tonne of coal based on each customer’s annual contracted tonnage and is then recognized on a pro-rata basis each month. Brookfield Infrastructure’s Australian regulated terminal operation also recognizes handling charges based on tonnes of coal shipped through the terminal. Brookfield Infrastructure’s regulated distribution operation receives customer contributions which are recorded in deferred revenue and released on a percentage of completion basis in accordance with IFRIC 18 and IAS 11.

Transport

Revenue from transport infrastructure consists primarily of freight, toll road operations and transportation services revenue. Revenue is recognized when services are provided and rendered based primarily on usage or volume throughput during the period.

Energy

Revenue from energy infrastructure consists primarily of energy transmission and storage as well as district energy services. Revenue is recognized when services are provided and rendered based primarily on usage or volume throughput during the period.

Communications Infrastructure

Revenue from communications infrastructure is derived from contracts with media broadcasting and telecom customers to access infrastructure. Customers pay upfront and recurring fees to lease space on towers to host their equipment. Recurring rental revenue is recognized on a straight line basis based on lease agreements. Upfront payments which are separable from the recurring revenue under IFRIC 18 are recognized on a percentage of completion basis on the construction asset they relate to.

(m) Financial Instruments and Hedge Accounting

The following summarizes Brookfield Infrastructure’s classification and measurement of financial assets and liabilities:

	Classification	Measurement
Financial assets
Cash and cash equivalents	Loans and receivables	Amortized cost
Accounts receivable and other	Loans and receivables	Amortized cost
Restricted cash and deposits	Loans and receivables	Amortized cost
Marketable securities	Available-for-sale	Fair value
Financial assets
Derivative assets	FVTPL(1)	Fair value
Other financial assets	Loans and receivables/ Available-for-sale	Amortized cost/ Fair value
Financial liabilities
Corporate borrowings	Other liabilities	Amortized cost
Non-recourse borrowings	Other liabilities	Amortized cost (2)
Accounts payable and other	Other liabilities	Amortized cost
Preferred shares	Other liabilities	Amortized cost
Financial liabilities	FVTPL(1)	Fair value

(1) Fair value through profit or loss (“FVTPL”), except for derivatives in certain hedge relationships.

(2) Except for derivatives embedded in the related financial instruments that are classified as FVTPL and measured at fair value.

Our partnership maintains a portfolio of marketable securities comprised of liquid equity and debt securities. The marketable securities are classified as available-for-sale and are subsequently measured at fair value at each reporting date with the change in fair value recorded in other comprehensive income. When a decline in the fair value of an available-for-sale financial asset has been recognized in other comprehensive income and there is objective evidence that the asset is impaired, the cumulative loss that had been recognized in other comprehensive income is reclassified from equity to profit or loss as a reclassification adjustment.

Brookfield Infrastructure selectively utilizes derivative financial instruments primarily to manage financial risks, including interest rate and foreign exchange risks. Derivative financial instruments are recorded at fair value. Hedge accounting is applied when the derivative is designated as a hedge of a specific exposure and there is assurance that it will continue to be highly effective as a hedge based on an expectation of offsetting cash flows or fair value. Hedge accounting is discontinued prospectively when the derivative no longer qualifies as a hedge or the hedging relationship is terminated. Once discontinued, the cumulative change in fair value of a derivative that was previously recorded in other comprehensive income by the application of hedge accounting is recognized in profit or loss over the remaining term of the original hedging relationship as amounts related to the hedged item are recognized in profit or loss. The assets or liabilities relating to unrealized mark-to-market gains and losses on derivative financial instruments are recorded in Financial Assets and Financial Liabilities, respectively.

(i) Items Classified as Hedges

Realized and unrealized gains and losses on foreign exchange contracts, designated as hedges of currency risks relating to a net investment in a subsidiary with a functional currency other than the U.S. dollar are included in equity and are included in net income in the period in which the subsidiary is disposed of or to the extent partially disposed and control is not retained. Derivative financial instruments that are designated as hedges to offset corresponding changes in the fair value of assets and liabilities and cash flows are measured at estimated fair value with changes in fair value recorded in profit or loss or as a component of equity as applicable.

Unrealized gains and losses on interest rate contracts designated as hedges of future variable interest payments are included in equity as a cash flow hedge when the interest rate risk relates to an anticipated variable interest payment. The periodic exchanges of payments on interest rate swap contracts designated as hedges of debt are recorded on an accrual basis as an adjustment to interest expense. The periodic exchanges of payments on interest rate contracts designated as hedges of future interest payments are amortized into profit or loss over the term of the corresponding interest payments.

(ii) Items Not Classified as Hedges

Derivative financial instruments that are not designated as hedges are carried at estimated fair value, and realized and unrealized gains and losses are recognized in net income in the period the gains and losses occur.

Other financial assets are classified as loans and receivables or available-for-sale securities based on their nature and use within our partnership’s business and are recorded initially at fair value. Other financial assets classified as available-for-sale are subsequently measured at fair value at each reporting date with the change in fair value recorded in other comprehensive income. Other financial assets classified as loans and receivables are subsequently measured at amortized cost using the effective interest method, less any impairment. Assets classified as loans and receivables are impaired when there exists objective evidence that the financial asset is impaired.

(n) Income Taxes

Income tax expense represents the sum of the tax accrued in the period and deferred income tax.

(i) Current income tax

Current income tax assets and liabilities are measured at the amount expected to be paid to tax authorities, net of recoveries based on the tax rates and laws enacted or substantively enacted at the reporting date. Current income tax relating to items recognized directly in partnership capital are also recognized directly in partnership capital and other comprehensive income.

(ii) Deferred income tax

Deferred income tax liabilities are provided for using the liability method on temporary differences between the tax bases used in the computation of taxable income and carrying amounts of assets and liabilities in the consolidated financial statements. Deferred income tax assets are recognized for all deductible temporary differences, carry forward of unused tax credits and unused tax losses, to the extent that it is probable that deductions, tax credits and tax losses can be utilized. Such deferred income tax assets and liabilities are not recognized if the temporary difference arises from goodwill or from the initial recognition of other assets and liabilities in a transaction that affects neither the taxable income nor the accounting income, other than in a business combination. The carrying amount of deferred income tax assets are reviewed at each reporting date and reduced to the extent it is no longer probable that the income tax asset will be recovered.

Deferred income tax liabilities are recognized for taxable temporary differences associated with investments in subsidiaries and associates, and interests in joint ventures, except where Brookfield Infrastructure is able to control the reversal of the temporary difference and it is probable that the temporary differences will not reverse in the foreseeable future. Deferred income tax assets arising from deductible temporary differences associated with such investments and interests are only recognized to the extent that it is probable that there will be sufficient taxable income against which to utilize the benefits of the temporary differences and they are expected to reverse in the foreseeable future.

Deferred income tax assets and liabilities are measured at the tax rates that are expected to apply in the period in which the liability is settled or the asset realized, based on tax rates and tax laws that have been enacted or substantively enacted by the end of the reporting period. The measurement of deferred income tax liabilities and assets reflect the tax consequences that would follow from the manner in which Brookfield Infrastructure expects, at the end of the reporting period, to recover or settle the carrying amount of its assets and liabilities.

Deferred income tax assets and liabilities are offset when there is a legally enforceable right to set off current tax assets against current tax liabilities and when they relate to income taxes levied by the same taxation authority within a single taxable entity or Brookfield Infrastructure intends to settle its current tax assets and liabilities on a net basis in the case where there exist different taxable entities in the same taxation authority and when there is a legally enforceable right to set off current tax assets against current tax liabilities.

(o) Assets Held for Sale

Non-current assets and disposal groups are classified as held for sale if their carrying amount will be recovered principally through a sale transaction rather than through continuing use. This condition is regarded as met only when the sale is highly probable and the non-current asset or disposal group is available for immediate sale in its present condition. Management must be committed to the sale, which should be expected to qualify for recognition as a completed sale within one year from the date of classification subject to limited exceptions.

When Brookfield Infrastructure is committed to a sale plan involving loss of control of a subsidiary, all of the assets and liabilities of that subsidiary are classified as held for sale when the criteria described above are met, regardless of whether Brookfield Infrastructure will retain a non-controlling interest in its former subsidiary after the sale.

Non-current assets and disposal groups classified as held for sale are measured at the lower of their previous carrying amount and fair value less costs to sell.

Non-current assets classified as held for sale and the assets of a disposal group are presented separately from other assets in the Consolidated Statements of Financial Position and are classified as current. The liabilities of a disposal group classified as held for sale are presented separately from other liabilities in the Consolidated Statements of Financial Position.

Once classified as held for sale, property, plant and equipment and intangible assets are not depreciated or amortized, respectively.

(p) Provisions

Provisions are recognized when Brookfield Infrastructure has a present obligation, either legal or constructive, as a result of a past event, it is probable that Brookfield Infrastructure will be required to settle the obligation, and a reliable estimate can be made of the amount of the obligation.

The amount recognized as a provision is the best estimate of the consideration required to settle the present obligation at the end of the reporting period, taking into account the risks and uncertainties surrounding the obligation. Where a provision is measured using the cash flows estimated to settle the obligation, its carrying amount is the present value of those cash flows.

When some or all of the economic benefits required to settle a provision are expected to be recovered from a third party, the receivable is recognized as an asset if it is virtually certain that reimbursement will be received and the amount of the receivable can be measured reliably.

(q) Critical Accounting Judgments and Key Sources of Estimation Uncertainty

The preparation of financial statements requires management to make critical judgments, estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses that are not readily apparent from other sources, during the reporting period. These estimates and associated assumptions are based on historical experience and other factors that are considered to be relevant. Actual results may differ from these estimates.

The estimates and underlying assumptions are reviewed on an ongoing basis. Revisions to accounting estimates are recognized in the period in which the estimate is revised if the revision affects only that period, or in the period of the revision and future periods if the revision affects both current and future periods.

Critical judgments made by management and utilized in the normal course of preparing Brookfield Infrastructure’s consolidated financial statements are outlined below.

(i) Common control transactions

IFRS 3 (2008) Business Combinations does not include specific measurement guidance for transfers of businesses or subsidiaries between entities under common control. Accordingly, Brookfield Infrastructure has developed a policy to account for such transactions taking into consideration other guidance in the IFRS framework and pronouncements of other standard-setting bodies. Brookfield Infrastructure’s policy is to record assets and liabilities recognized as a result of transactions between entities under common control at the carrying value on the transferor’s financial statements, and to have the Consolidated Statements of Financial Position, Consolidated Statements of Operating Results, Consolidated Statements of Comprehensive Income and Statements of Cash Flows reflect the results of combining entities for all periods presented for which the entities were under the transferor’s common control, irrespective of when the combination takes place.

(ii) Financial instruments

Brookfield Infrastructure’s accounting policies relating to derivative financial instruments are described in Note 3(m), Financial Instruments and Hedge Accounting. The critical judgments inherent in these policies relate to applying the criteria to the assessment of the effectiveness of hedging relationships. Estimates and assumptions used in determining the fair value of financial instruments are equity and commodity prices; future interest rates; the credit worthiness of the company relative to its counterparties; the credit risk of our partnership and counterparty; estimated future cash flows; and discount rates.

(iii) Revaluation of property, plant and equipment

Property, plant and equipment is revalued on a regular basis. The critical estimates and assumptions underlying the valuation of property, plant and equipment are set out in Note 12, Property, Plant and Equipment.

(iv) Fair values in business combinations

Brookfield Infrastructure accounts for business combinations using the acquisition method of accounting. This method requires the application of fair values for both the consideration given and the assets and liabilities acquired. The calculation of fair values is often predicated on estimates and judgments including future cash flows discounted at an appropriate rate to reflect the risk inherent in the acquired assets and liabilities (refer to Note 5, Acquisition of Business for details of business combinations). The determination of the fair values may remain provisional for up to 12 months from the date of acquisition due to the time required to obtain independent valuations of individual assets and to complete assessments of provisions. When the accounting for a business combination has not been completed as at the reporting date, this is disclosed in the financial statements, including observations on the estimates and judgments made as of the reporting date.

(v) Assets held for sale

Brookfield Infrastructure applies judgment to determine whether an asset or disposal group is available for immediate sale in its present condition and that its sale is highly probable and therefore should be classified as held for sale at the balance sheet date. Conditions that support a highly probable sale include the following: an appropriate level of management is committed to a plan to sell the asset or disposal group, an active programme to locate a buyer is initiated, the asset is being actively marketed for sale at a price reasonable in relation to its fair value, the sale is highly probably within 12 months of classification as held for sale, and actions required to complete the plan indicate that it is unlikely that plan will be significantly changed or withdrawn.

(vi) Impairment of goodwill, intangibles with indefinite lives and investment in associates and joint ventures

The impairment assessment of goodwill and intangible assets with indefinite lives requires estimation of the value-in-use or fair value less costs of disposal of the cash-generating units to which goodwill or the intangible asset has been allocated. Brookfield Infrastructure uses the following critical assumptions and estimates: the circumstances that gave rise to the goodwill, timing and amount of future cash flows expected from the cash-generating unit; discount rates; terminal capitalization rates; terminal valuation dates and useful lives.

The impairment assessment of investments in associates and joint ventures requires estimation of the recoverable amount of the asset.

Other estimates utilized in the preparation of our partnership’s financial statements are: depreciation and amortization rates and useful lives; recoverable amount of goodwill and intangible assets; ability to utilize tax losses and other tax measurements.

Other critical judgments utilized in the preparation of our partnership’s financial statements include the methodologies for calculating amortization, determination of operating segments and determination of control.

(r) Recently adopted accounting standard amendments

Brookfield Infrastructure applied, for the first time, certain amendments to Standards applicable to Brookfield Infrastructure that became effective January 1, 2017. The impact of adopting these amendments on our partnership’s accounting policies and disclosures are as follows:

IAS 7 Statement of Cash Flows (“IAS 7”)

In January 2016, the IASB issued amendments to IAS 7, effective for annual periods beginning on or after January 1, 2017. The amendment requires that the following changes in liabilities arising from financing activities are disclosed (to the extent necessary): (i) changes from financing cash flows; (ii) changes arising from obtaining or losing control of subsidiaries or other businesses; (iii) the effect of changes in foreign exchange rates; (iv) changes in fair values; and (v) other changes. Amendments to IAS 7 were applied prospectively and resulted in no material impact to Brookfield Infrastructure’s consolidated financial statements.

(s) Future Changes in Accounting Policies

Standards issued, but not yet adopted

IFRS 15 Revenue from Contracts with Customers—(“IFRS 15”)

IFRS 15, Revenue from Contracts with Customers specifies how and when revenue should be recognized as well as requiring more informative and relevant disclosures. This standard also requires additional disclosures about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts. IFRS 15 supersedes IAS 18, Revenue, IAS 11, Construction Contracts and a number of revenue-related interpretations. IFRS 15 applies to nearly all contracts with customers: the main exceptions are leases, financial instruments and insurance contracts. IFRS 15 must be applied for periods beginning on or after January 1, 2018. An entity may adopt the standard on a fully retrospective basis or on a modified retrospective basis.

Our partnership has a global team in place to evaluate the financial statement and any corollary impact of adopting IFRS 15, has participated in strategic planning sessions with Brookfield and has developed an adoption plan. Management has also assessed major revenue streams, and has substantially completed accumulating, identifying and inventorying detailed information on major contracts that may be impacted by the changes at the transition date. The key areas of focus within the context of the standard are primarily in relation to the identification of performance obligation and the evaluation of the appropriate period of recognition of revenue for each of these performance obligations.

Our partnership has finalized the documented analysis and assessed potential impact to IT systems and internal controls. We will adopt the new revenue guidance effective January 1, 2018, using the modified retrospective approach, by recognizing the cumulative effect of initially applying the new standard as an adjustment to opening retained earnings as if the standard had always been in effect and whereby comparative periods will not be restated. No material adjustments required upon adoption have been noted to date, however further technical analysis and quantitative assessments are required to conclude on the overall impact.

IFRS 9 Financial Instruments—(“IFRS 9”)

In July 2014, the IASB issued the final publication of IFRS 9, superseding IAS 39, Financial Instruments. This standard establishes principles for the financial reporting of financial assets and financial liabilities that will present relevant and useful information to users of financial statements for their assessment of the amounts, timing and uncertainty of an entity’s future cash flows. This new standard also includes a new general hedge accounting standard which will align hedge accounting more closely with an entity’s risk management activities. It does not fully change the types of hedging relationships or the requirement to measure and recognize ineffectiveness, however, it will allow more hedging strategies that are used for risk management to qualify for hedge accounting and introduce more judgment to assess the effectiveness of a hedging relationship. The standard has a mandatory effective date for annual periods beginning on or after January 1, 2018.

Our partnership has a global team in place to evaluate the financial statements and any corollary impact of IFRS 9 on its consolidated financial statements and business processes. To date, management has participated in a number of strategic planning and analysis sessions with its subsidiaries and associates in order to evaluate the impact of IFRS 9 with a primary focus on the appropriateness of financial asset classification and the consideration of the financial asset impairment requirements under this standard. The evaluation of changes resulting from IFRS 9 relating to hedge accounting have been substantially completed and it has been determined that certain hedge accounting relationships relating to aggregated foreign currency exposures will qualify for hedge accounting under this new standard. Consequently, the partnership has completed the hedge documentation for these relationships in order to apply hedge accounting to these relationships prospectively commencing on January 1, 2018. In addition, our partnership has elected certain gas storage contracts to be measured at fair value through profit or loss. Next steps involve the finalization of documented analyses and drafting pro-forma disclosures that will be required upon initial adoption of this standard and thereafter. We are progressing as planned toward the implementation of IFRS 9.

Our partnership has decided to adopt IFRS 9 retrospectively with no restatement of comparatives. A cumulative catch-up adjustment will be recorded through equity upon initial adoption. No material adjustments required upon adoption have been noted to date, however further technical analysis and quantitative assessments are required to conclude on the overall impact.

IFRS 16 Leases—(“IFRS 16”)

The IASB has published a new standard, IFRS 16. The new standard brings most leases on-balance sheet for lessees under a single model, eliminating the distinction between operating and finance leases. Lessor accounting however remains largely unchanged and the distinction between operating and finance leases is retained. IFRS 16 supersedes IAS 17, Leases and related interpretations and is effective for periods beginning on or after January 1, 2019, with earlier adoption permitted if IFRS 15 has also been applied. Brookfield Infrastructure is currently evaluating the impact of IFRS 16 on its consolidated financial statements.

Amendments and Interpretations, not yet adopted

IFRIC 22 Foreign Currency Transactions and Advance Considerations—(“IFRIC 22”)

In December 2016, the IASB issued IFRIC 22, effective for annual periods beginning on or after January 1, 2018. The interpretation clarifies that the date of the transaction for the purpose of determining the exchange rate to use on initial recognition of the related asset, expense or income (or part of it) is the date on which an entity initially recognizes the non-monetary asset or non-monetary liability arising from the payment or receipt of advance consideration. The Interpretation may be applied either retrospectively or prospectively. Adoption will occur on a prospective basis and it is not anticipated that the impact will be material.

IFRIC 23 Uncertainty over Income Tax Treatments—(“IFRIC 23”)

In June 2017, the IASB published IFRIC 23, effective for annual periods beginning on or after January 1, 2019. The interpretation requires an entity to assess whether it is probable that a tax authority will accept an uncertain tax treatment used, or proposed to be used, by an entity in its income tax filings and to exercise judgment in determining whether each tax treatment should be considered independently or whether some tax treatments should be considered together. The decision should be based on which approach provides better predictions of the resolution of the uncertainty. An entity also has to consider whether it is probable that the relevant authority will accept each tax treatment, or group of tax treatments, assuming that the taxation authority with the right to examine any amounts reported to it will examine those amounts and will have full knowledge of all relevant information when doing so. The interpretation may be applied on either a fully retrospective basis or a modified retrospective basis without restatement of comparative information. Brookfield Infrastructure is currently evaluating the impact of IFRIC 23 on its consolidated financial statements.

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SEGMENT INFORMATION

12 Months Ended

Dec. 31, 2017

Operating Segments [Abstract]

SEGMENT INFORMATION

SEGMENT INFORMATION

IFRS 8, Operating Segments, requires operating segments to be determined based on information that is regularly reviewed by the Executive Management and the Board of Directors for the purpose of allocating resources to the segment and to assessing its performance. Key measures used by the Chief Operating Decision Maker (“CODM”) in assessing performance and in making resource allocation decisions are funds from operations (“FFO”) and earnings before interest, tax, depreciation and amortization (“Adjusted EBITDA”), which enable the determination of return on the equity deployed. FFO is calculated as net income excluding the impact of depreciation and amortization, deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. Adjusted EBITDA is calculated as net income excluding the impact of depreciation and amortization, interest expense, current and deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses.

FOR THE YEAR ENDED DECEMBER 31, 2017 US$ MILLIONS	Total attributable to Brookfield Infrastructure
																			Contribution from investments in associates			Attributable to non- controlling interest			As per IFRS financials on F-6(1)
	Utilities			Transport			Energy			Comm. Infrastructure			Corporate			Total
Revenues	$	988		$	1,589		$	559		$	165		$	—		$	3,301		$	(1,624	)	$	1,858		$	3,535
Costs attributed to revenues	(250		)	(895		)	(278		)	(75		)	—			(1,498		)	861			(872		)	(1,509		)
General and administrative costs	—			—			—			—			(239		)	(239		)	—			—			(239		)
Adjusted EBITDA	738			694			281			90			(239		)	1,564			(763		)	986
Other (expense) income	(14		)	(4		)	15			(2		)	45			40			7			(108		)	(61		)
Interest expense	(114		)	(158		)	(87		)	(12		)	(63		)	(434		)	172			(166		)	(428		)
FFO	610			532			209			76			(257		)	1,170			(584		)	712
Depreciation and amortization	(186		)	(312		)	(151		)	(77		)	—			(726		)	382			(327		)	(671		)
Deferred taxes	(52		)	(1		)	11			21			14			(7		)	(22		)	(38		)	(67		)
Mark-to-market on hedging items and other	(59		)	(80		)	(37		)	(9		)	(127		)	(312		)	106			124			(82		)
Share of earnings from associates	—			—			—			—			—			—			118			—			118
Net income attributable to non-controlling interest and preferred unitholders	—			—			—			—			—			—			—			(471		)	(471		)
Net income (loss) attributable to partnership(2)	$	313		$	139		$	32		$	11		$	(370	)	$	125		$	—		$	—		$	125

FOR THE YEAR ENDED DECEMBER 31, 2016 US$ MILLIONS	Total attributable to Brookfield Infrastructure
																			Contribution from investments in associates			Attributable to non- controlling interest			As per IFRS financials on F-6(1)
	Utilities			Transport			Energy			Comm. Infrastructure			Corporate			Total
Revenues	$	684		$	1,247		$	496		$	163		$	—		$	2,590		$	(1,311	)	$	836		$	2,115
Costs attributed to revenues	(160		)	(650		)	(220		)	(72		)	—			(1,102		)	651			(612		)	(1,063		)
General and administrative costs	—			—			—			—			(166		)	(166		)	—			—			(166		)
Adjusted EBITDA	524			597			276			91			(166		)	1,322			(660		)	224
Other income (expense)	5			(17		)	8			(2		)	84			78			16			1			95
Interest expense	(130		)	(157		)	(109		)	(12		)	(48		)	(456		)	190			(126		)	(392		)
FFO	399			423			175			77			(130		)	944			(454		)	99
Depreciation and amortization	(154		)	(253		)	(128		)	(74		)	—			(609		)	328			(166		)	(447		)
Deferred taxes	5			26			(38		)	29			(17		)	5			9			4			18
Mark-to-market on hedging items and other	(88		)	10			81			(5		)	149			147			(131		)	117			133
Share of earnings from associates	—			—			—			—			—			—			248			—			248
Net income attributable to non-controlling interest and preferred unitholders	—			—			—			—			—			—			—			(54		)	(54		)
Net income (loss) attributable to partnership(2)	$	162		$	206		$	90		$	27		$	2		$	487		$	—		$	—		$	487

FOR THE YEAR ENDED DECEMBER 31, 2015 US$ MILLIONS	Total attributable to Brookfield Infrastructure
													Contribution from investments in associates		Attributable to non- controlling interest		As per IFRS financials on F-6(1)
	Utilities		Transport		Energy		Comm. Infrastructure		Corporate		Total
Revenues	698		1,143		349		123		—		2,313		(1,044	)	586		1,855
Costs attributed to revenues	(174	)	(588	)	(183	)	(57	)	—		(1,002	)	546		(342	)	(798	)
General and administrative costs	—		—		—		—		(134	)	(134	)	—		—		(134	)
Adjusted EBITDA	524		555		166		66		(134	)	1,177		(498	)	244
Other income (expense)	5		(15	)	3		—		34		27		13		(4	)	36
Interest expense	(142	)	(142	)	(79	)	(6	)	(27	)	(396	)	144		(115	)	(367	)
FFO	387		398		90		60		(127	)	808		(341	)	125
Depreciation and amortization	(153	)	(217	)	(90	)	(46	)	—		(506	)	246		(115	)	(375	)
Deferred taxes	(8	)	21		14		14		12		53		(41	)	14		26
Mark-to-market on hedging items and other	(16	)	(67	)	(14	)	(13	)	56		(54	)	67		66		79
Share of earnings from associates	—		—		—		—		—		—		69		—		69
Net income attributable to non-controlling interest and preferred unitholders	—		—		—		—		—		—		—		(90	)	(90	)
Net income (loss) attributable to partnership(2)	210		135		—		15		(59	)	301		—		—		301

(1) The above table provides each segment’s results in the format that management organizes its segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account Brookfield Infrastructure’s ownership in operations accounted for using the consolidation and equity methods under IFRS. The above table reconciles Brookfield Infrastructure’s proportionate results to our partnership’s consolidated statements of operating results on a line by line basis by aggregating the components comprising the earnings from our partnership’s investments in associates and reflecting the portion of each line item attributable to non-controlling interests.

(2) Net income (loss) attributable to our partnership includes net income (loss) attributable to non-controlling interests—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

Segment assets

For the purpose of monitoring segment performance and allocating resources between segments, the CODM monitors the assets, including investments accounted for using the equity method, attributable to each segment.

The following is an analysis of Brookfield Infrastructure’s assets by reportable operating segment for the years under review:

	Total Attributable to Brookfield Infrastructure
														Contribution from investments in associates			Attributable to non- controlling interest		Working capital adjustment and other		As per IFRS financials on F-5(1)
AS AT DECEMBER 31, 2017 US$ MILLIONS	Utilities		Transport		Energy		Comm. Infrastructure		Corporate			Brookfield Infrastructure
Total assets	$	6,542	$	6,990	$	3,134	$	1,049	$	(1,083	)	$	16,632	$	(3,134	)	$	11,668	$	4,311	$	29,477

	Total Attributable to Brookfield Infrastructure
														Contribution from investments in associates			Attributable to non- controlling interest		Working capital adjustment and other		As per IFRS financials on F-5(1)
AS AT DECEMBER 31, 2016 US$ MILLIONS	Utilities		Transport		Energy		Comm. Infrastructure		Corporate			Brookfield Infrastructure
Total assets	$	4,605	$	6,160	$	3,032	$	933	$	(510	)	$	14,220	$	(2,996	)	$	6,496	$	3,555	$	21,275

(1) The above table provides each segment’s assets in the format that management organizes its segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account Brookfield Infrastructure’s ownership in operations using consolidation and the equity method whereby our partnership either controls or exercises significant influence over the investment respectively. The above table reconciles Brookfield Infrastructure’s proportionate assets to total assets presented on our partnership’s Consolidated Statements of Financial Position by removing net liabilities contained within investments in associates and joint ventures and reflecting the assets attributable to non-controlling interests, and adjusting for working capital assets which are netted against working capital liabilities.

Geographic Information

Revenues from external customers

US$ MILLIONS	2017		2016		2015
Australia	$	1,093	$	793	$	699
Brazil	938		—		—
United Kingdom	565		566		635
Colombia	161		150		152
Canada	193		163		118
Chile	153		127		113
United States of America	183		154		138
India	57		39		—
Peru	103		97		—
New Zealand	89		26		—
	$	3,535	$	2,115	$	1,855

Over 10% of our partnership’s revenue is from one customer. For the year ended December 31, 2017, revenue generated from this customer of the utilities segment was $938 million (2016: $nil).

Non-current Assets

US$ MILLIONS	2017		2016
Australia	$	5,770	$	5,542
United Kingdom	4,431		3,739
Chile	2,045		1,748
Brazil	8,184		1,895
United States of America	2,818		2,470
Canada	1,468		1,252
Colombia	764		700
Europe	836		718
India	256		265
Peru	1,356		1,281
New Zealand	37		33
	$	27,965	$	19,643

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ACQUISITION OF BUSINESSES

12 Months Ended

Dec. 31, 2017

Disclosure of detailed information about business combination [abstract]

ACQUISITION OF BUSINESSES

 ACQUISITION OF BUSINESSES

a) Acquisition of Brazilian regulated gas transmission business

On April 4, 2017, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund (the “consortium”), acquired an effective 28% interest in Nova Transportadora do Sudeste S.A. (“NTS”), a Brazilian regulated gas transmission business, for total consideration by Brookfield Infrastructure of approximately $1.6 billion (consortium total of $5.1 billion). Brookfield Infrastructure’s consideration consists of $1.3 billion in cash (consortium total of $4.2 billion) and deferred consideration of $0.3 billion (consortium total of $0.9 billion) payable five years from the close of the transaction. Concurrently, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective April 4, 2017. Acquisition costs of $8 million were recorded as Other expenses within the Consolidated Statements of Operating Results.

Consideration transferred

US$ MILLIONS
Cash	$	1,306
Consideration payable(1)	262
Total Consideration	$	1,568

Fair value of assets and liabilities acquired as of April 4, 2017:

US$ MILLIONS
Cash and cash equivalents	$	89
Accounts receivable and other	317
Intangible assets(2)	5,515
Goodwill	804
Accounts payable and other liabilities	(202		)
Deferred income tax liabilities	(946		)
Net assets acquired before non-controlling interest	5,577
Non-controlling interest(3)	(4,009		)
Net assets acquired	1,568

(1) The deferred consideration is payable on the fifth anniversary of the date of acquisition and has therefore been initially recorded at fair value within non-current financial liabilities on the consolidated statements of financial position. The deferred consideration is denominated in U.S. dollars and accrues interest at 3.35% compounded annually. The financial liability will be subsequently measured at amortized cost.

(2) Represents authorizations that expire between 2039 and 2041.

(3) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date.

Upon acquisition of an interest in NTS, an additional deferred tax liability of $893 million was recorded. The deferred income tax liability arose as the tax bases of the net assets acquired were lower than their fair values. The inclusion of this liability in the net book value of the acquired business, partially offset by the recognition of non-controlling interest at fair value, gave rise to goodwill of $804 million, which is recoverable so long as the tax circumstances that gave rise to the goodwill do not change. To date, no such changes have occurred. None of the goodwill recognized is deductible for income tax purposes.

For the year ended December 31, 2017, the Brazilian regulated gas transmission business contributed revenues of $938 million and net income of $495 million.

b) Individually insignificant business combinations

The following table summarizes the purchase price allocation of individually insignificant business combinations that have been completed during the twelve-month periods ended December 31, 2017.

US$ MILLIONS
Cash	$	9
Consideration payable	18
Total consideration	$	27

Fair value of assets and liabilities acquired (provisional):

US$ MILLIONS
Accounts receivable and other	$	28
Goodwill	11
Property, plant and equipment	100
Deferred income tax and other liabilities	(31		)
Non-recourse borrowings	(30		)
Net assets acquired before non-controlling interest	78
Non-controlling interest(1)	(51		)
Net assets acquired	$	27

(1) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date.

For the year ended December 31, 2017, the individually insignificant business combinations contributed revenues of $24 million and net income of $4 million.

c) Acquisition of Australian ports business

On August 18,2016, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund, and Qube Holdings Limited, along with its respective institutional partners, acquired certain assets from Asciano Limited. As part of this transaction Brookfield Infrastructure tendered its 20% interest in Asciano acquired in the fourth quarter of 2015. As a result of tendering its interest in Asciano Limited, a gain of $123 million was recorded in Other income on the Consolidated Statements of Operating Results during the third quarter of 2016, representing the reclassification of available for sale mark-to-market gains of $44 million and foreign exchange gains of $79 million to net income from accumulated other comprehensive income.

Concurrently, Brookfield Infrastructure acquired an effective 27% interest in Linx Cargo Care, alongside other members of the Brookfield Consortium, through a Brookfield-sponsored infrastructure fund for total consideration of $145 million, comprising of $13 million in cash and a portion of our partnership’s previously existing interest in shares of Asciano Limited with an acquisition date fair value of $132 million (Brookfield Consortium total consideration of $63 million cash and $442 million in fair value of shares, funded through our partnership). Concurrently, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective August 18,2016. Acquisition costs of $17 million were recorded as Other expenses within the Consolidated Statements of Operating Results in 2016.

Consideration transferred

US$ MILLIONS
Cash	$	13
Common shares of Asciano Limited	132
Total consideration	$	145

Fair value of assets and liabilities acquired as of August 18, 2016

US$ MILLIONS
Cash and cash equivalents	$	12
Accounts receivable and other	233
Assets classified as held for sale(1)	115
Property, plant and equipment	225
Intangible assets	69
Goodwill	199
Liabilities directly associated with assets classified as held for sale(1)	(58		)
Deferred income tax and other liabilities	(109		)
Non-recourse borrowings	(181		)
Net assets acquired before non-controlling interest	505
Non-controlling interest(2)	(360		)
Net assets acquired	$	145

(1) $115 million of equity accounted investments and $58 million of non-recourse borrowings relate to a non-core business acquired as part of the acquisition of the Australian ports business which was sold in the fourth quarter of 2016. The net proceeds recorded approximated the carrying value of the business and therefore no gain or loss on disposition was recorded.

(2) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date.

The additional goodwill recorded on acquisition primarily represents expected growth arising from the business’ position as an incumbent in a fragmented bulk port services industry. None of the goodwill recognized is expected to be deductible for income tax purposes. The recoverable amount of the goodwill has been determined based on the fair value less cost of disposal of the cash-generating unit using a discounted cash flow model whereby the fair value measurement is classified under level 3 on the fair value hierarchy. The key inputs in determining fair value under the discounted cash flow model are the utilization of a discount rate of 15%, a terminal value multiple of 8.9x and a discrete cash flow period of 10 years. The carrying amount of the cash-generating unit was determined to not exceed its recoverable amount.

d) Acquisition of North American gas storage business

On July 19, 2016, Brookfield Infrastructure expanded its gas storage business as it acquired an effective 40% interest in Rockpoint Gas Storage (“Rockpoint”) for consideration of $227 million through a Brookfield-sponsored infrastructure fund. The consideration is comprised of $141 million of Rockpoint senior notes currently owned by Brookfield Infrastructure, $19 million of a working capital credit facility provided to Rockpoint by Brookfield Infrastructure prior to the acquisition date, and cash of $67 million ⁽¹⁾. Concurrently, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective July 19, 2016. Acquisition costs of $11 million were recorded as Other expenses within the Consolidated Statement of Operating Results in 2016.

Consideration transferred

US$ MILLIONS
Cash	$	67
Senior notes(2)	141
Working capital credit facility	19
Total consideration	$	227

(1) The total consideration through the Brookfield-sponsored partnership includes $170 million cash, $357 million in fair value of the Senior notes and $48 million of a working capital facility.

(2) On the date of acquisition of the North American gas storage operation Brookfield Infrastructure held a pre-existing interest in the Senior notes of $117 million, representing the original cost of $104 million and $13 million of income recorded as Other income on the Consolidated Statement of Operating Results in prior periods. On the acquisition date, Brookfield Infrastructure recorded an additional $24 million of Other income on the Consolidated Statement of Operating Results associated with the recycling of accumulated mark-to-market gains on revaluation of the Senior notes, which was equivalent to fair value.

Fair value of assets and liabilities acquired as of July 19, 2016

US$ MILLIONS
Cash and cash equivalents	$	15
Accounts receivable and other	99
Inventory	39
Property, plant and equipment	825
Goodwill	82
Deferred income tax and other liabilities	(148		)
Non-recourse borrowings	(337		)
Net assets acquired before non-controlling interest	575
Non-controlling interest(1)	(348		)
Net assets acquired	$	227

(1) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure and was measured at fair value on the acquisition date.

Upon acquisition of the North American gas storage business by Brookfield Infrastructure, a deferred tax liability of $82 million was recorded. The deferred income tax liability arose because tax bases of the net assets acquired were lower than their fair values. The inclusion of this liability in the net book value of the acquired business gave rise to goodwill of $82 million, which is recoverable so long as the tax circumstances that gave rise to the goodwill do not change. To date, no such changes have occurred. None of the goodwill recognized is deductible for income tax purposes.

e) Acquisition of Peruvian toll road business

On June 28, 2016, Brookfield Infrastructure expanded its toll road business to Peru as it acquired an effective 17% interest in Rutas de Lima S.A.C. (“Rutas”), through a Brookfield-sponsored infrastructure fund, for total consideration of $127 million, comprised of $118 million of cash (fund total of $400 million funded through our partnership) and an amount payable of $9 million (fund total of $30 million). Concurrently, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective June 28, 2016. Acquisition costs of less than $1 million were recorded as Other expenses within the Consolidated Statement of Operating Results in 2016.

Consideration transferred

US$ MILLIONS
Cash	$	118
Consideration payable(1)	9
Total consideration	$	127

Fair value of assets and liabilities acquired as of June 28, 2016

US$ MILLIONS
Cash and cash equivalents(2)	$	115
Accounts receivable and other	121
Property, plant and equipment	6
Intangible assets(3)	973
Goodwill	139
Deferred income tax and other liabilities	(160		)
Non-recourse borrowings	(441		)
Net assets acquired before non-controlling interest	753
Non-controlling interest(4)	(626		)
Net assets acquired	$	127

(1) The purchase price is payable in a series of four payments, one on the date of acquisition as well as three equal payments made 18 months, 27 months and 36 months subsequent to this date and consequently an amount payable of $9 million is recorded as a financial liability within the consolidated statements of financial position as at December 31, 2016.

(2) Includes $114 million of restricted cash primarily related to toll road construction obligations.

(3) Represents a 30 year Peruvian toll road service concession agreement expiring in January 2043. The agreement obligates Rutas to maintain the toll roads to an acceptable standard in exchange for the ability to charge regulated tariffs to the users of the toll road.

(4) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date.

Upon acquisition of the Peruvian toll road business by Brookfield Infrastructure, a deferred tax liability of $139 million was recorded. The deferred income tax liability arose because tax bases of the net assets acquired were lower than their fair values. The inclusion of this liability in the net book value of the acquired business gave rise to goodwill of $139 million, which is recoverable so long as the tax circumstances that gave rise to the goodwill do not change. To date, no such changes have occurred. None of the goodwill recognized is deductible for income tax purposes.

f) Acquisition of Indian toll road business

On March 1, 2016, Brookfield Infrastructure expanded its toll road operations through the acquisition of a 40% effective interest in an Indian toll road business (BIF India Holdings Pte Ltd) from Gammon Infrastructure Projects Limited for consideration of $42 million through a Brookfield-sponsored infrastructure fund. Concurrently, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective March 1, 2016. Acquisition costs of $2 million were recorded as Other expenses within the Consolidated Statement of Operating Results in 2016.

Consideration transferred

US$ MILLIONS
Cash	$	42
Total consideration	$	42

Fair value of assets and liabilities acquired as of March 1, 2016

US$ MILLIONS
Accounts receivable and other	$	38
Property, plant and equipment	7
Financial assets	142
Intangible assets	147
Deferred income tax assets	10
Accounts payable and other	(38		)
Non-recourse borrowings	(202		)
Net assets acquired before non-controlling interest	104
Non-controlling interest(1)	(62		)
Net assets acquired	$	42

(1) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date which is equal to the consideration paid by the non-controlling interest.

Upon acquisition of the Indian toll road business by Brookfield Infrastructure, a deferred tax asset of $10 million was recorded. The deferred tax assets relate to tax losses and are recognized based on management’s best estimate that it is probable that there will be sufficient taxable income against which to utilize the benefits of these tax losses.

g) Supplemental information

Had the acquisitions of the Brazilian regulated gas transmission business and individually insignificant business combinations been effective January 1, 2017, the revenue and net income of Brookfield Infrastructure would have been $3,911 million (unaudited) and $751 million (unaudited), respectively, for the year ended December 31, 2017.

In determining the pro-forma revenue and net income attributable to our partnership, management has:

• Calculated depreciation of property, plant and equipment and amortization of intangible assets acquired on the basis of the fair values at the time of the business combination rather than the carrying amounts recognized in the pre-acquisition financial statements and;

• Based borrowing costs on the funding levels, credit ratings and debt and equity position of Brookfield Infrastructure after the business combination.

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FAIR VALUE OF FINANCIAL INSTRUMENTS

12 Months Ended

Dec. 31, 2017

Fair Value Measurement [Abstract]

FAIR VALUE OF FINANCIAL INSTRUMENTS

FAIR VALUE OF FINANCIAL INSTRUMENTS

The fair value of a financial instrument is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair values are determined by reference to quoted bid or ask prices, as appropriate. Where bid and ask prices are unavailable, the closing price of the most recent transaction of that instrument is used. In the absence of an active market, fair values are determined based on prevailing market rates such as bid and ask prices, as appropriate for instruments with similar characteristics and risk profiles or internal or external valuation models, such as option pricing models and discounted cash flow analyses, using observable market inputs.

Fair values determined using valuation models require the use of assumptions concerning the amount and timing of estimated future cash flows and discount rates. In determining those assumptions, Brookfield Infrastructure looks primarily to external readily observable market inputs such as interest rate yield curves, currency rates, and price and rate volatilities as applicable. The fair value of interest rate swap contracts which form part of financing arrangements is calculated by way of discounted cash flows using market interest rates and applicable credit spreads.

Classification of Financial Instruments

Financial instruments classified as fair value through profit or loss are carried at fair value on the Consolidated Statements of Financial Position. Changes in the fair values of financial instruments classified as fair value through profit or loss are recognized in profit or loss. Mark-to-market adjustments on hedging items for those in an effective hedging relationship and changes in the fair value of available-for-sale securities are recognized in other comprehensive income.

Carrying Value and Fair Value of Financial Instruments

The following table provides the break down of financial instruments and their associated financial instrument classifications as at December 31, 2017:

US$ MILLIONS	FVTPL		Available for sale securities		Loans and Receivables/ Other Liabilities
Financial Instrument Classification	(Fair Value)		(Fair Value through OCI)		(Amortized Cost)		Total
MEASUREMENT BASIS
Financial assets
Cash and cash equivalents	$	—	$	—	$	374	$	374
Accounts receivable and other	—		—		838		838
Financial assets (current and non-current)(1)	608		57		172		837
Marketable securities	—		85		—		85
Total	$	608	$	142	$	1,384	$	2,134
Financial liabilities
Corporate borrowings	$	—	$	—	$	2,101	$	2,101
Non-recourse borrowings (current and non-current)	—		—		8,063		8,063
Accounts payable and other	—		—		864		864
Preferred shares(2)	—		—		20		20
Financial liabilities (current and non-current)(1)	440		—		873		1,313
Total	$	440	$	—	$	11,921	$	12,361

(1) Derivative instruments which are elected for hedge accounting totaling $464 million are included in Financial assets and $146 million of derivative instruments are included in Financial liabilities.

(2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

The following table provides the break down of financial instruments and their associated financial instrument classifications as at December 31, 2016:

US$ MILLIONS	FVTPL		Available for sale securities		Loans and Receivables/ Other Liabilities
Financial Instrument Classification	(Fair Value)		(Fair Value through OCI)		(Amortized Cost)		Total
MEASUREMENT BASIS
Financial assets
Cash and cash equivalents	$	—	$	—	$	786	$	786
Accounts receivable and other	—		—		485		485
Financial assets (current and non-current)(1)	893		12		233		1,138
Marketable securities	—		3		—		3
Total	$	893	$	15	$	1,504	$	2,412
Financial liabilities
Corporate borrowings	$	—	$	—	$	1,002	$	1,002
Non-recourse borrowings (current and non-current)	—		—		7,324		7,324
Accounts payable and other	—		—		712		712
Preferred shares(2)	—		—		20		20
Financial liabilities (current and non-current)(1)	381		—		—		381
Total	$	381	$	—	$	9,058	$	9,439

(1) Derivative instruments which are elected for hedge accounting totaling $722 million are included in Financial assets and $185 million of derivative instruments are included in Financial liabilities.

(2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

The following table provides the carrying values and fair values of financial instruments as at December 31, 2017 and December 31, 2016:

	Dec. 31, 2017				Dec. 31, 2016
US$ MILLIONS	Carrying Value		Fair Value		Carrying Value		Fair Value
Financial assets
Cash and cash equivalents	$	374	$	374	$	786	$	786
Accounts receivable and other	838		838		485		485
Financial assets (current and non-current)	837		837		1,138		1,138
Marketable securities	85		85		3		3
Total	$	2,134	$	2,134	$	2,412	$	2,412

	Dec. 31, 2017				Dec. 31, 2016
US$ MILLIONS	Carrying Value		Fair Value		Carrying Value		Fair Value
Financial liabilities
Corporate borrowings(1)	$	2,101	$	2,113	$	1,002	$	1,023
Non-recourse borrowings(2)	8,063		8,392		7,324		7,478
Accounts payable and other (current and non-current)	864		864		712		712
Preferred shares(3)	20		20		20		20
Financial liabilities (current and non-current)	1,313		1,313		381		381
	$	12,361	$	12,702	$	9,439	$	9,614

(1) Corporate borrowings is classified under level 1 of the fair value hierarchy; quoted prices in an active market are available.

(2) Non-recourse borrowings are classified under level 2 of the fair value hierarchy with the exception of certain borrowings at the U.K. port operation, Chilean toll road and Peruvian toll road which are classified under level 1. For level 2 fair values, future cash flows are estimated based on observable forward interest rates at the end of the reporting period.

(3) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

Hedging Activities

Brookfield Infrastructure uses derivatives and non-derivative financial instruments to manage or maintain exposures to interest and currency risks. For certain derivatives which are used to manage exposures, Brookfield Infrastructure determines whether hedge accounting can be applied. When hedge accounting can be applied, a hedge relationship can be designated as a fair value hedge, cash flow hedge or a hedge of foreign currency exposure of a net investment in a foreign operation with a functional currency other than the U.S. dollar. To qualify for hedge accounting the derivative must be highly effective in accomplishing the objective of offsetting changes in the fair value or cash flows attributable to the hedged risk both at inception and over the life of the hedge. If it is determined that the derivative is not highly effective as a hedge, hedge accounting is discontinued prospectively.

Cash Flow Hedges

Brookfield Infrastructure uses interest rate swaps to hedge the variability in cash flows related to a variable rate asset or liability and highly probably forecast issuances of debt. The settlement dates coincide with the dates on which the interest is payable on the underlying debt, and the amount accumulated in equity is reclassified to profit or loss over the period that the floating rate interest payments on debt affect profit or loss. For the year ended December 31, 2017, pre-tax net unrealized gains of $50 million (2016: losses of $14 million, 2015: losses of $41 million) were recorded in other comprehensive income for the effective portion of the cash flow hedges. As at December 31, 2017, there was a net derivative asset balance of $447 million relating to derivative contracts designated as cash flow hedges (2016: asset balance of $464 million).

Net Investment Hedges

Brookfield Infrastructure uses foreign exchange contracts and foreign currency denominated debt instruments to manage its foreign currency exposures arising from net investments in foreign operations having a functional currency other than the U.S. dollar. For the year ended December 31, 2017, unrealized net losses of $202 million (2016: gains of $70 million, 2015: losses of $131 million) were recorded in other comprehensive income for the effective portion of hedges of net investments in foreign operations. Further, Brookfield Infrastructure recognized a $64 million loss (2016: gain of $99 million, 2015: gain of $220 million) in other comprehensive income relating to the net settlement of foreign exchange contracts in the period. As at December 31, 2017, there was a net unrealized derivative liability balance of $129 million relating to derivative contracts designated as net investment hedges (2016: net unrealized derivative asset balance of $73 million).

Fair Value Hierarchical Levels—Financial Instruments

Fair value hierarchical levels are directly determined by the amount of subjectivity associated with the valuation inputs of these assets and liabilities, and are as follows:

Level 1	—	Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date.
Level 2	—	Inputs other than quoted prices included in Level 1 are either directly or indirectly observable for the asset or liability through correlation with market data at the measurement date and for the duration of the instrument’s anticipated life. Fair valued assets and liabilities that are included in this category are primarily certain derivative contracts and other financial assets carried at fair value in an inactive market.
Level 3	—	Inputs reflect management’s best estimate of what market participants would use in pricing the asset or liability at the measurement date. Consideration is given to the risk inherent in the valuation technique and the risk inherent in the inputs to determining the estimate. Fair valued assets and liabilities that are included in this category are interest rate swap contracts, derivative contracts, certain equity securities carried at fair value which are not traded in an active market and the non-controlling interest’s share of net assets of limited life funds.

The fair value of our partnership’s financial assets and financial liabilities are measured at fair value on a recurring basis. The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s financial assets and financial liabilities:

US$ MILLIONS	Fair value hierarchy	Dec. 31, 2017		Dec. 31, 2016
Marketable securities	Level 1(1)	$	85	$	3
Foreign currency forward contracts	Level 2(2)
Financial asset		$	236	$	210
Financial liability		196		48
Interest rate swaps & other	Level 2(2)
Financial asset		$	381	$	653
Financial liability		155		287
Other contracts
Financial asset	Level 3(3)	$	48	$	42
Financial liability	Level 3(3)	89		46

(1) Valuation technique: Quoted bid prices in an active market.

(2) Valuation technique: Discounted cash flow. Future cash flows are estimated based on forward exchange rates (from observable forward exchange rates at the end of the reporting period) and contract forward rates, discounted at a rate that reflects our credit risk and the credit risk of various counterparties.

(3) Valuation technique: Discounted cash flow. Future cash flows primarily driven by freight volumes and the use of assumptions concerning the amount and timing of estimated future cash flows and discount rates.

Assets and liabilities measured at fair value on a recurring basis include $750 million (2016: $908 million) of financial assets and $440 million (2016: $381 million) of financial liabilities which are measured at fair value using valuation inputs based on management’s best estimates.

During the year, no transfers were made between level 1 and 2 or level 2 and 3. The following table categorizes financial assets and liabilities, which are carried at fair value, based upon the level of input.

	Dec. 31, 2017						Dec. 31, 2016
US$ MILLIONS	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Financial assets
Marketable securities	$	85	$	—	$	—	$	3	$	—	$	—
Financial assets (current and non-current)	—		617		48		—		863		42
Financial liabilities
Financial liabilities (current and non-current)	$	—	$	351	$	89	$	—	$	335	$	46

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CASH AND CASH EQUIVALENTS

12 Months Ended

Dec. 31, 2017

Cash and cash equivalents [abstract]

CASH AND CASH EQUIVALENTS

CASH AND CASH EQUIVALENTS

US$ MILLIONS	2017		2016
Cash	$	258	$	652
Restricted cash(1)	33		84
Cash equivalents(2)	83		50
Total cash and cash equivalents	$	374	$	786

(1) Restricted cash primarily relates to our partnership’s financing arrangements, including debt service accounts.

(2) Short-term, highly liquid investments that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value.

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FINANCIAL ASSETS

12 Months Ended

Dec. 31, 2017

Financial Instruments [Abstract]

FINANCIAL ASSETS

FINANCIAL ASSETS

US$ MILLIONS	2017		2016
Current:
Foreign currency forward contracts	$	10	$	132
Loans and receivables	43		73
Marketable securities	85		3
Other	54		33
Total current	$	192	$	241
Non-current:
Cross currency interest rate swaps	$	243	$	589
Loans and receivables	210		172
Foreign currency forward contracts	226		78
Other	51		61
Total non-current	$	730	$	900

FINANCIAL LIABILITIES

US$ MILLIONS	2017		2016
Current:
Foreign currency forward contracts	$	150	$	47
Other financial liabilities	87		182
Total current financial liabilities	$	237	$	229
Non-current:
Interest rate swaps	$	9	$	34
Inflation swaps	84		97
Deferred consideration(1)	916		—
Other financial liabilities	67		21
Total non-current financial liabilities	$	1,076	$	152

(1) The deferred consideration is related to the acquisitions completed during 2017. See Note 5, Acquisition of Businesses for further details.

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ACCOUNTS RECEIVABLE AND OTHER

12 Months Ended

Dec. 31, 2017

Subclassifications of assets, liabilities and equities [abstract]

ACCOUNTS RECEIVABLE AND OTHER

ACCOUNTS RECEIVABLE AND OTHER

US$ MILLIONS	2017		2016
Current:
Accounts receivable	$	738	$	395
Prepayments & other assets	100		109
Total current	$	838	$	504
Non-current:
Tax recovery receivables	$	52	$	55
Other assets	221		110
Total non-current	$	273	$	165

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INVENTORY

12 Months Ended

Dec. 31, 2017

Inventories [Abstract]

INVENTORY

INVENTORY

US$ MILLIONS	2017		2016
Current:
Natural gas inventory	$	84	$	82
Raw materials and consumables	24		19
Carrying amount of inventories	$	108	$	101

During the year ended December 31, 2017, Brookfield Infrastructure recognized $418 million (2016: $154 million, 2015: $nil) worth of inventories as an expense in the Consolidated Statements of Operating Results and $nil (2016: $nil, 2015: $nil) relating to impairments of inventory.

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INVESTMENT IN ASSOCIATES AND JOINT VENTURES

12 Months Ended

Dec. 31, 2017

Interests In Other Entities [Abstract]

INVESTMENT IN ASSOCIATES AND JOINT VENTURES

INVESTMENT IN ASSOCIATES AND JOINT VENTURES

The following table presents the ownership interest and carrying values of Brookfield Infrastructure’s investments in associates and joint ventures:

	Name of entity	Ownership and Voting Interest				Carrying Value
US$ MILLIONS		Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2017		Dec. 31, 2016
Brazilian toll road(1),(2)	Arteris S.A.	45	%	49	%	$	1,715	$	1,505
North American natural gas transmission operation(3),(4)	Natural Gas Pipeline of America LLC	50	%	50	%	1,013		806
Chilean electricity transmission operation(5)	Transelec S.A., held through ETC Transmission Holdings, S.L.	28	%	28	%	930		699
European telecommunications infrastructure operations	TDF Infrastructure SAS	21	%	21	%	614		536
Brazilian rail business	VLI S.A.	11	%	11	%	436		376
Australian ports operation(6)	Patrick Terminals, held through PTH No 1 Pty Ltd	13	%	13	%	191		181
Other(7)		11%-50%		11%-50%		673		624
Total						$	5,572	$	4,727

The following table represents the change in the balance of investments in associates and joint ventures:

US$ MILLIONS	2017			2016
Balance at beginning of year	$	4,727		$	2,973
Share of earnings for the year(3)	118			248
Foreign currency translation and other	167			219
Share of other comprehensive income	183			225
Distributions	(66		)	(46		)
Disposition of interest(1)	(177		)	—
Acquisitions(2),(4),(5)	620			1,108
Balance at end of year	$	5,572		$	4,727

\

(1) In August 2017, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund, reorganized the holding entities of its investment in the Brazilian toll road operation. This transaction resulted in no gain or loss being recorded within the Consolidated Statements of Operating Results. The reorganization resulted in Brookfield Infrastructure no longer consolidating an 8% interest of the investment attributable to an institutional partner. The reorganization concurrently reduced the investments in associates and joint venture and non-controlling interest partnership capital balances by $177 million during the third quarter of 2017.

(2) Throughout 2017, Brookfield Infrastructure, alongside an institutional partner, injected $349 million into the Brazilian toll road operation for growth capital expenditure requirements increasing our partnership’s ownership interest to 45%.

(3) Share of earnings for the year ended December 31, 2016 includes $195 million of non-recurring gains primarily related to our transport and energy operations.

(4) In May 2017, Brookfield Infrastructure and its partner in its North American natural gas transmission operation each injected $200 million into the business to pay down operating level debt. A similar transaction was completed in April 2016 by Brookfield Infrastructure and its partner in the amount of $312 million.

(5) During December 2017, our partnership signed an agreement to sell our ownership in ETC Transmission Holdings. Completion of this transaction is subject to certain closing conditions, third party consents and regulatory approvals.

(6) In August 2016, Brookfield Infrastructure expanded its ports operations in Australia as it acquired an effective 13% interest in PTH No 1 Pty Ltd (“Patrick”) through a Brookfield-sponsored infrastructure fund, alongside institutional partners, for total consideration of $202 million. The Brookfield consortium maintains 50% of the voting rights of Patrick in a joint venture with Qube Holdings Limited, along with its institutional partners. Brookfield Infrastructure has joint control through its position in the business. Accordingly, Brookfield Infrastructure equity accounts for the entity.

(7) Other includes our partnership’s Texas electricity transmission project, Brazil electricity transmission operation, European port operation, North American west coast container terminal, U.S. gas storage operation and other investments in associates and joint ventures held through consolidated subsidiaries.

The following tables present the gross assets and liabilities of Brookfield Infrastructure’s investments in associates and joint ventures:

	As at December 31, 2017
	Total														Attributable to
US$ MILLIONS	Current Assets		Non- Current Assets		Total Assets		Current Liabilities		Non- Current Liabilities		Total Liabilities		Total Net Assets		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	304	$	5,769	$	6,073	$	602	$	2,102	$	2,704	$	3,369	$	1,654	$	1,715
North American natural gas transmission operation	139		4,741		4,880		139		2,716		2,855		2,025		1,012		1,013
Chilean electricity transmission operation	280		7,122		7,402		181		3,874		4,055		3,347		2,417		930
European telecommunications infrastructure operation	464		6,281		6,745		561		2,968		3,529		3,216		2,602		614
Brazilian rail business	743		6,131		6,874		515		2,405		2,920		3,954		3,518		436
Australian ports operation	198		2,281		2,479		24		1,332		1,356		1,123		932		191
Other	694		5,228		5,922		865		2,291		3,156		2,766		2,093		673
Total	$	2,822	$	37,553	$	40,375	$	2,887	$	17,688	$	20,575	$	19,800	$	14,228	$	5,572

	As at December 31, 2016
	Total														Attributable to
US$ MILLIONS	Current Assets		Non- Current Assets		Total Assets		Current Liabilities		Non- Current Liabilities		Total Liabilities		Total Net Assets		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	263	$	4,977	$	5,240	$	823	$	1,665	$	2,488	$	2,752	$	1,247	$	1,505
North American natural gas transmission operation	122		5,767		5,889		1,353		2,925		4,278		1,611		805		806
Chilean electricity transmission operation	221		5,519		5,740		142		3,234		3,376		2,364		1,665		699
European telecommunications infrastructure operation	328		5,437		5,765		443		2,528		2,971		2,794		2,258		536
Brazilian rail business	460		5,265		5,725		674		1,645		2,319		3,406		3,030		376
Australian ports operation	171		2,166		2,337		66		1,229		1,295		1,042		861		181
Other	360		4,378		4,738		515		1,827		2,342		2,396		1,772		624
Total	$	1,925	$	33,509	$	35,434	$	4,016	$	15,053	$	19,069	$	16,365	$	11,638	$	4,727

The following tables present the gross amounts of revenue, net income, other comprehensive income from Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2017, 2016, and 2015:

	Year ended December 31, 2017
	Total									Attributable to
US$ MILLIONS	Revenue		Net Income		OCI			Total Comprehensive Income		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	928	$	95	$	(39	)	$	56	$	19	$	37
North American natural gas transmission operation	681		15		(1		)	14		7		7
Chilean electricity transmission operation	441		37		806			843		609		234
European telecommunications infrastructure operation	783		58		435			493		409		84
Brazilian rail business	1,409		56		490			546		486		60
Australian ports operation	418		19		78			97		80		17
Other	1,809		98		(19		)	79		55		24
Total	$	6,469	$	378	$	1,750		$	2,128	$	1,665	$	463

	Year ended December 31, 2016
	Total											Attributable to
US$ MILLIONS	Revenue		Net Income			OCI			Total Comprehensive Income			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	766	$	185		$	382		$	567		$	275		$	292
North American natural gas transmission operation	573		133			5			138			69			69
Chilean electricity transmission operation	433		38			217			255			184			71
European telecommunications infrastructure operation	767		121			376			497			393			104
Brazilian rail business	1,024		70			976			1,046			931			115
Australian ports operation	164		(31		)	(81		)	(112		)	(97		)	(15		)
Other	1,091		54			280			334			278			56
Total	$	4,818	$	570		$	2,155		$	2,725		$	2,033		$	692

	Year ended December 31, 2015
	Total											Attributable to
US$ MILLIONS	Revenue		Net Income			OCI			Total Comprehensive Income			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	758	$	(12	)	$	(1,118	)	$	(1,130	)	$	(778	)	$	(352	)
North American natural gas transmission operation	522		(29		)	—			(29		)	(19		)	(10		)
Chilean electricity transmission operation	432		75			(145		)	(70		)	(51		)	(19		)
European telecommunications infrastructure operation	579		62			72			134			104			30
Brazilian rail business	1,074		136			(668		)	(532		)	(474		)	(58		)
Other	947		94			212			306			241			65
Total	$	4,312	$	326		$	(1,647	)	$	(1,321	)	$	(977	)	$	(344	)

As at December 31, 2017 and 2016, none of the associates or joint ventures have quoted prices in an active market.

The following tables present the cash flow activities of Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2017, 2016, and 2015:

	Year ended December 31, 2017
	Total										Attributable to
US$ MILLIONS	Operating		Investing			Financing			Total Cash Flows		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	345	$	(1,046	)	$	800		$	99	$	57	$	42
North American natural gas transmission operation	258		(169		)	(79		)	10		5		5
Chilean electricity transmission operation	256		(240		)	14			30		22		8
European telecommunications infrastructure operation	338		(226		)	(58		)	54		43		11
Brazilian rail business	472		(458		)	292			306		272		34
Australian ports operation	80		(15		)	(22		)	43		40		3
Other	284		(729		)	538			93		80		13
Total	$	2,033	$	(2,883	)	$	1,485		$	635	$	519	$	116

	Year ended December 31, 2016
	Total											Attributable to
US$ MILLIONS	Operating		Investing			Financing			Total Cash Flows			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	249	$	(491	)	$	212		$	(30	)	$	(19	)	$	(11	)
North American natural gas transmission operation	163		(170		)	2			(5		)	(2		)	(3		)
Chilean electricity transmission operation	273		(207		)	(27		)	39			28			11
European telecommunications infrastructure operation	325		(323		)	(83		)	(81		)	(64		)	(17		)
Brazilian rail business	337		(780		)	272			(171		)	(152		)	(19		)
Australian ports operation	15		(391		)	433			57			47			10
Other	142		(229		)	71			(16		)	(15		)	(1		)
Total	$	1,504	$	(2,591	)	$	880		$	(207	)	$	(177	)	$	(30	)

	Year ended December 31, 2015
	Total											Attributable to
US$ MILLIONS	Operating		Investing			Financing			Total Cash Flows			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	194	$	(534	)	$	59		$	(281	)	$	(194	)	$	(87	)
North American natural gas transmission operation	98		(157		)	10			(49		)	(32		)	(17		)
Chilean electricity transmission operation	274		(122		)	(197		)	(45		)	(32		)	(13		)
European telecommunications infrastructure operation	253		(101		)	(19		)	133			106			27
Brazilian rail business	309		(929		)	588			(32		)	(29		)	(3		)
Other	154		(89		)	(36		)	29			18			11
Total	$	1,282	$	(1,932	)	$	405		$	(245	)	$	(163	)	$	(82	)

XML

PROPERTY, PLANT AND EQUIPMENT

12 Months Ended

Dec. 31, 2017

Property, plant and equipment [abstract]

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT

US$ MILLIONS	Utility Assets			Transport Assets			Energy Assets			Total Assets
Gross Carrying Amount:
Balance at January 1, 2016	$	2,945		$	2,150		$	1,457		$	6,552
Additions, net of disposals	399			76			89			564
Non-cash (disposals) additions	(31		)	3			—			(28		)
Acquisitions through business combinations(1)	—			242			825			1,067
Net foreign currency exchange differences	(418		)	(109		)	9			(518		)
Balance at December 31, 2016	$	2,895		$	2,362		$	2,380		$	7,637
Additions, net of disposals	349			104			95			548
Non-cash disposals	—			—			(14		)	(14		)
Acquisitions through business combinations(1)	—			—			100			100
Net foreign currency exchange differences	227			191			68			486
Balance at December 31, 2017	$	3,471		$	2,657		$	2,629		$	8,757
Accumulated depreciation:
Balance at January 1, 2016	$	(291	)	$	(418	)	$	(159	)	$	(868	)
Depreciation expense	(128		)	(127		)	(99		)	(354		)
Non-cash disposals	—			4			—			4
Net foreign currency exchange differences	36			24			—			60
Balance at December 31, 2016	$	(383	)	$	(517	)	$	(258	)	$	(1,158	)
Depreciation expense	(118		)	(147		)	(117		)	(382		)
Disposals	19			21			—			40
Non-cash disposals	—			—			5			5
Net foreign currency exchange differences	(28		)	(44		)	(13		)	(85		)
Balance at December 31, 2017	$	(510	)	$	(687	)	$	(383	)	$	(1,580	)
Accumulated fair value adjustments:
Balance at January 1, 2016	$	945		$	777		$	226		$	1,948
Fair value adjustments	185			25			125			335
Net foreign currency exchange differences	(87		)	(20		)	1			(106		)
Balance at December 31, 2016	$	1,043		$	782		$	352		$	2,177
Fair value adjustments	137			24			257			418
Net foreign currency exchange differences	78			67			20			165
Balance at December 31, 2017	$	1,258		$	873		$	629		$	2,760
Net book value:
December 31, 2017	$	4,219		$	2,843		$	2,875		$	9,937
December 31, 2016	$	3,555		$	2,627		$	2,474		$	8,656

(1) See Note 5, Acquisition of Business for additional information.

The fair value of our partnership’s property, plant, and equipment is measured at fair value on a recurring basis with an effective date of revaluation for all asset classes of December 31, 2017 and 2016. Brookfield Infrastructure determined fair value under the income method. Assets under development were revalued where fair value could be reliably measured.

The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s property, plant and equipment assets, categorized by segment.

	Dec. 31, 2017				Dec. 31, 2016
Segment	Valuation Technique	Discount Rate	Terminal Value Multiple	Investment Horizon	Valuation Technique	Discount Rate	Terminal Value Multiple	Investment Horizon
Utilities	Discounted cash flow model	7% to 12%	7x to 21x	10 to 20 yrs	Discounted cash flow model	7% to 12%	7x to 18x	10 to 20 yrs
Transport	Discounted cash flow model	10% to 15%	9x to 14x	10 to 20 yrs	Discounted cash flow model	10% to 17%	8x to 14x	10 to 20 yrs
Energy	Discounted cash flow model	12% to 15%	8x to 13x	10 yrs	Discounted cash flow model	9% to 14%	10x to 12x	10 yrs

An increase in the discount rate would lead to a decrease in the fair value of property, plant and equipment. Conversely, an increase to the terminal value multiple would increase the fair value of property, plant and equipment. Our partnership has classified all property, plant and equipment under level 3 of the fair value hierarchy.

At December 31, 2017, Brookfield Infrastructure carried out an assessment of the fair value of its Utilities property, plant and equipment, resulting in a gain from revaluation of $137 million (2016: $185 million) which was recognized in revaluation surplus in the Consolidated Statements of Comprehensive Income. Key drivers behind the revaluation gain recorded include; growth in underlying cash flows at our U.K. regulated distribution business associated with new connections made during the year and a modest increase in our terminal value assumption commensurate with observable market valuations for regulated utility businesses in mature geographies.

At December 31, 2017, Brookfield Infrastructure carried out an assessment of the fair value of its Transport property, plant and equipment. A gain from revaluation of $24 million (2016: $25 million) was recognized in revaluation surplus in the Consolidated Statements of Comprehensive Income. Underlying valuation assumptions in the Transport segment remain relatively consistent with the prior year. The reduction in the discount rate range was associated with successful de-risking activities executed during the first full year of ownership at our Australian ports operation.

At December 31, 2017, Brookfield Infrastructure carried out an assessment of the fair value of its Energy property, plant and equipment. A gain from revaluation of $257 million (2016: $125 million) was recognized in revaluation surplus in the Consolidated Statements of Comprehensive Income. The revaluation gain was primarily associated with growth in underlying cash flows at our North American district energy operations associated with new customer connections during the last 12 months and a more robust pipeline of growth opportunities underway in the business. The increase in discount rate and reduction in terminal value assumptions for the segment relate to our Australian district energy operation where we have updated the valuation assumptions in response to the inclusion of a higher level of organic growth projects that are in the early stages of development.

The following table summarizes the carrying amount of property, plant and equipment that would have been recognized had assets been carried under the cost model.

US$ MILLIONS	Dec. 31, 2017		Dec. 31, 2016
Utilities	$	2,961	$	2,512
Transport	1,970		1,845
Energy	2,246		2,122

XML

INTANGIBLE ASSETS

12 Months Ended

Dec. 31, 2017

Intangible Assets [Abstract]

INTANGIBLE ASSETS

INTANGIBLE ASSETS

US$ MILLIONS	2017			2016
Cost	$	10,470		$	4,732
Accumulated amortization	(576		)	(267		)
Net intangible assets	$	9,894		$	4,465

Intangible assets are allocated to the following cash generating units:

US$ MILLIONS	Dec. 31, 2017		Dec. 31, 2016
Brazilian regulated gas transmission operation	$	5,134	$	—
Australian regulated terminal	1,957		1,817
Peruvian toll roads	1,144		1,049
Chilean toll roads	1,100		1,054
U.K. port operation	289		265
Indian toll roads	130		136
Other	140		144
Total	$	9,894	$	4,465

The intangible assets at Brookfield Infrastructure’s Brazilian regulated gas transmission operation, Australian regulated terminal operation, and Chilean, Peruvian and Indian toll roads relate to service concession arrangements.

The terms and conditions of concession arrangements at the Brazilian regulated gas transmission operation are regulated by the Agência Nacional do Petróleo, Gás Natural e Biocombustíveis (“ANP”). Each gas transportation agreement (“GTA”) took into account a return on regulatory asset base (“RAB”) , and the tariffs were calculated on an inflation adjusted regulatory weighted average cost of capital (“WACC”) fixed for the GTA life. Upon expiry of the authorizations, the assets shall be returned to the government and subject to concession upon public bidding. These assets operate as authorizations that expire between 2039 and 2041.

The terms and conditions of access to the Australian regulated terminal’s services, including tariffs that can be charged to the users, are regulated by the Queensland Competition Authority. Brookfield Infrastructure’s Australian regulated terminal operation has Standard Access Agreements with the users of the terminal which entails 100% take-or-pay contracts at a designated tariff rate based on the asset value. The concession arrangement has an expiration date of 2051 with an option to extend the arrangement for an additional 49 years.

The terms and conditions of the Chilean toll roads concession, including tariffs that can be charged to the users and the duties to be performed by the operator, are regulated by the Ministerio de Obras Publicas (“MOP”). The service concession provides the operator the right to charge a tariff to vehicles which use the road over the term of the concession in exchange for operating the road, including preserving the road based on a defined maintenance and construction schedule. Tariffs are adjusted annually for the Chilean Consumer Price Index plus 3.5%, in addition to congestion charges which may be levied should specified traffic levels be reached. The concession arrangement has an expiration date of 2033 at which point the underlying concessions assets will be returned to the MOP.

The terms and conditions of the Peruvian toll roads concession, including tariffs that can be charged to the users and the duties to be performed by the operator, are regulated by the Municipalidad Metropolitana de Lima (“MML”) and its municipal arm, Fondo Metropolitano de Inversiones. The service concession provides the operator the right to charge a tariff to vehicles which use the road network over the life of the concession in exchange for the design, construction, improvement, maintenance and operation of the road network. Until December 2018, tariffs are increased by fixed amounts and on specified dates, and thereafter, are adjusted annually for the Lima Metropolitana Consumer Price Index. For the year ended December 31, 2017, revenue and profit related to construction contracts were $31 million (2016: $66 million, 2015: $nil) and $nil (2016: $nil, 2015: $nil), respectively. Due to construction services relating to the concession arrangement $35 million (2016: $20 million, 2015: $nil) of borrowing costs were capitalized as an intangible asset, based on the stage of project completion. The concession arrangement has an expiration date of 2043 at which point the underlying concession assets will be returned to the MML.

The intangible asset at Brookfield Infrastructure’s U.K. port operation relates to a conservancy right. As a right in perpetuity issued by the Statutory Harbour Authority in the U.K., the conservancy right is classified as having an indefinite life, and is subject to an annual impairment review.

The terms and conditions of Mumbai Nasik Indian toll road concession, including tariffs that can be charged to the users and the duties to be performed by the operator, are regulated by National Highways Authority of India (“NHAI”). The Service Concession Agreement provides the operator the right to charge a tariff to vehicles which use the road over the term of the concession in exchange for operating the road, including preserving the road based on a defined maintenance schedule. Tariffs are revised annually for the Indian Wholesale Price Index. The Concession Arrangement has an expiration date of 2027 at which point the underlying concessions assets will be returned to NHAI.

The carrying value as at December 31, 2017, of Brookfield Infrastructure’s indefinite lived intangibles is $297 million (2016: $274 million).

The following table presents the change in the cost balance of intangible assets:

US$ MILLIONS	2017		2016
Cost at beginning of the year	$	4,732	$	3,485
Additions, net of disposals	79		116
Acquisitions through business combinations(1)	5,515		1,189
Non-cash additions	18		—
Foreign currency translation	126		(58		)
Cost at end of year	$	10,470	$	4,732

(1) See Note 5, Acquisition of Business for additional information.

The following table presents the accumulated amortization for Brookfield Infrastructure’s intangible assets:

US$ MILLIONS	2017			2016
Accumulated amortization at beginning of year	$	(267	)	$	(189	)
Amortization	(289		)	(93		)
Foreign currency translation	(20		)	15
Accumulated amortization at end of year	$	(576	)	$	(267	)

XML

GOODWILL

12 Months Ended

Dec. 31, 2017

Intangible Assets [Abstract]

GOODWILL

GOODWILL

The following table presents the carrying amount for Brookfield Infrastructure’s goodwill:

US$ MILLIONS	2017			2016
Balance at beginning of the year	$	502		$	79
Acquisitions through business combinations(1)	815			431
Foreign currency translation and other	(16		)	(8		)
Balance at end of the year	$	1,301		$	502

(1) See Note 5, Acquisition of Business for additional information.

XML

INVESTMENT PROPERTIES

12 Months Ended

Dec. 31, 2017

Investment property [abstract]

INVESTMENT PROPERTIES

INVESTMENT PROPERTIES

The following table presents the carrying amount for Brookfield Infrastructure’s investment properties:

US$ MILLIONS	2017		2016
Balance at beginning of the year	$	154	$	153
Additions, net of disposals	—		3
Non-cash additions	—		10
Fair value adjustments	23		12
Foreign currency translation	15		(24		)
Balance at end of the year	$	192	$	154

For the year ended December 31, 2017, fair value adjustments of $23 million were recognized for the U.K. port operation (2016: $12 million).

Investment properties are measured at fair value on a recurring basis and the effective date of revaluation is December 31, 2017 and 2016. The fair value of our partnership’s investment properties are determined by management of our partnership with due consideration given to other relevant market conditions. The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s investment property. Our partnership has classified all assets below under level 3 of the fair value hierarchy:

Segment	Valuation technique	Significant unobservable inputs	Range of inputs
Transport	Direct Income Capitalization	Capitalization Rate	6% to 14%

An increase in the capitalization rate would lead to a decrease in the fair value of investment property, with the opposite impact for a decrease in the capitalization rate.

XML

ACCOUNTS PAYABLE AND OTHER

12 Months Ended

Dec. 31, 2017

Subclassifications of assets, liabilities and equities [abstract]

ACCOUNTS PAYABLE AND OTHER

ACCOUNTS PAYABLE AND OTHER

US$ MILLIONS	Note	2017		2016
Current:
Accounts payable(1)		$	246	$	266
Accrued & other liabilities		400		274
Deferred revenue	(i)	159		108
Provisions		59		64
Total current		$	864	$	712
Non-current:
Deferred revenue	(i)	$	300	$	293
Pension liabilities(2)		100		98
Provisions		95		41
Other liabilities		298		148
Total non-current		$	793	$	580

(1) The average credit period on purchases of goods and services is 30 days. No interest is incurred on trade creditors. Brookfield Infrastructure has financial risk management policies in place to ensure that all payables are paid within the pre-agreed credit terms.

(2) See Note 31, Retirement Benefit Plans for further details.

Brookfield Infrastructure’s exposure to currency and liquidity risk related to trade and other payables is disclosed in Note 34, Financial Risk Management.

(i) Deferred revenue

Deferred revenue relates primarily to cash contributions from third parties to build or upgrade existing network capabilities at Brookfield Infrastructure’s Australian rail operation and for future natural gas and electricity connections at Brookfield Infrastructure’s U.K. regulated distribution operation. The deferred revenue is recorded on receipt of cash payments and recognized as revenue over the life of the contracted track access or connections arrangement.

XML

BORROWINGS

12 Months Ended

Dec. 31, 2017

Financial Instruments [Abstract]

BORROWINGS

BORROWINGS

(a) Corporate Borrowings

Brookfield Infrastructure has a $1.975 billion senior unsecured revolving credit facility used for general working capital including acquisitions. The $1.975 billion is available on a revolving basis for the full term of the facility. All amounts outstanding under this facility will be repayable on June 30, 2022. All obligations of Brookfield Infrastructure under the facility are guaranteed by our partnership. Loans under this facility accrue interest at a floating rate based on LIBOR plus 1.20%. Brookfield Infrastructure is required to pay an unused commitment fee under the facility of 18 basis points per annum. As at December 31, 2017, draws on the credit facility were $789 million (2016: $nil) and $106 million of letters of credit were issued (2016: $46 million). Subsequent to year end, Brookfield Infrastructure cancelled $59 million letters of credit.

	Maturity	Annual Rate	Currency	2017		2016
Corporate revolving credit facility	June 30, 2022	LIBOR plus 1.2%	US$	789		—
Medium Term Notes(1):
Current:
Public - Canadian	October 10, 2017	3.5%	C$	—		295
Public - Canadian	October 30, 2018	3.0%	C$	99		93
Non-Current:
Public - Canadian	October 30, 2020	3.5%	C$	298		279
Public - Canadian	March 11, 2022	3.5%	C$	358		335
Public - Canadian	February 22, 2024	3.3%	C$	239		—
Public - Canadian	February 22, 2024	3.3%	C$	318		—
Total				$	2,101	$	1,002

(1) See Note 19, Subsidiary Public Issuers for further details.

On April 17, 2017, Brookfield Infrastructure Finance ULC, a wholly-owned subsidiary of Brookfield Infrastructure, issued C$400 million or $309 million of medium-term notes maturing February 22, 2024 with a coupon of 3.3%. The notes were issued at a premium with an effective interest rate of 3.1% per annum, which was swapped into U.S. dollars on a matched maturity basis at an all-in rate of 4.0%.

On February 22, 2017, Brookfield Infrastructure Finance ULC, a wholly-owned subsidiary of Brookfield Infrastructure, issued C$300 million or $228 million of medium-term notes maturing February 22, 2024 with a coupon of 3.3%, which was swapped into U.S. dollars on a matched maturity basis at an all-in rate of 4.1%.

On October 10, 2017, Brookfield Infrastructure Finance Pty Ltd, a wholly-owned subsidiary of Brookfield Infrastructure, repaid C$400 million or $306 million of medium-term notes.

The strengthening of the Canadian dollar against the U.S. dollar during the twelve-month period ended December 31, 2017 resulted in an increase in corporate borrowings of $79 million from December 31, 2016.

Brookfield Infrastructure has entered into a $500 million revolving credit facility with Brookfield to provide additional liquidity for general corporate purposes and capital expenditures, if required. The revolving credit facility has an effective date of February 8, 2018 and automatically renews for four consecutive one year terms on the first, second, third and fourth anniversary of such effective date, which would result it in ultimately maturing on February 8, 2023. Brookfield has the option to terminate the agreement prior to February 8 each year by providing Brookfield Infrastructure with written notice. All obligations of Brookfield Infrastructure under the facility were guaranteed by our partnership. Loans under this facility accrued interest on LIBOR plus 2.00% and no commitment fees were incurred for any undrawn balance. As of December 31, 2017, there were $nil (2016: $nil) of borrowings outstanding. Subsequent to year end, Brookfield placed $400 million on deposit with Brookfield Infrastructure through the revolving credit facility.

(b) Non-Recourse Borrowings

The current and non-current balances of non-recourse borrowings are as follows:

US$ MILLIONS	Dec. 31, 2017		Dec. 31, 2016
Current	$	364	$	279
Non-current	7,699		7,045
Total	$	8,063	$	7,324

Non-recourse borrowings have increased by $739 million since year-end. This increase is attributable to a $379 million increase of foreign denominated debt balances, predominantly the Australian dollar and the British pound, and increased borrowings of $360 million primarily to fund organic growth initiatives.

Subsequent to year end, on February 14, 2018, our North American gas storage operation issued $400 million of senior secured notes due March 31, 2023 with a coupon of 7%.

Principal repayments on non-recourse borrowings due over the next five years and thereafter are as follows:

US$ MILLIONS	Utilities			Transport			Energy			Total
2018	—			143			229			372
2019	87			261			222			570
2020	304			210			69			583
2021	461			230			4			695
2022	440			323			4			767
Thereafter	2,358			2,095			647			5,100
Total Principal repayments	3,650			3,262			1,175			8,087
Deferred financing costs and other	(1		)	(5		)	(18		)	(24		)
Total - Dec. 31, 2017	$	3,649		$	3,257		$	1,157		$	8,063
Total - Dec. 31, 2016	$	3,207		$	3,163		$	954		$	7,324

The weighted average interest rate of non-recourse borrowings are as follows:

US$ MILLIONS	Utilities		Transport		Energy		Total
Dec. 31, 2017	4	%	5	%	5	%	5	%
Dec. 31, 2016	4	%	5	%	5	%	5	%

Principal repayments on non-recourse borrowings in their local currency are as follows:

US$ MILLIONS, except as noted	Dec. 31, 2017		Local Currency		Dec. 31, 2016		Local Currency
Australian dollars	$	1,013	AUD	1,297	$	922	AUD	1,281
British pounds	1,735		GBP	1,283	1,390		GBP	1,125
U.S. dollars	3,087		USD	3,087	3,039		USD	3,039
Chilean Unidad de Fomento(1)	960		UF	22	901		UF	23
Canadian dollars	397		CAD	499	263		CAD	354
Colombian pesos	184		COP	549,384	133		COP	403,030
Peruvian soles	458		PEN	1,483	439		PEN	1,473
Indian rupees	186		INR	11,847	196		INR	13,324
New Zealand dollars	43		NZD	61	41		NZD	59

(1) Chilean Unidad de Fomento is an inflation adjusted unit of account indexed to the Chilean Peso.

(c) Supplemental Information

Details of the “Changes in liabilities from financing activities”, including both changes arising from cash flows and non-cash changes are as follows:

US$ MILLIONS	2016		Cash Flows		Acquisition		Foreign Exchange Movement		Fair Value Changes		2017
Corporate borrowings	$	1,002	$	1,020	$	—	$	79	$	—	$	2,101
Non-recourse borrowings	7,324		360		—		379		—		8,063

XML

SUBSIDIARY PUBLIC ISSUERS

12 Months Ended

Dec. 31, 2017

Subsidiary Public Issuer [Abstract]

SUBSIDIARY PUBLIC ISSUERS

 SUBSIDIARY PUBLIC ISSUERS  

An indenture dated as of October 10, 2012 between certain wholly-owned subsidiaries of our partnership, Brookfield Infrastructure Finance ULC, Brookfield Infrastructure Finance LLC, Brookfield Infrastructure Finance Pty Ltd and Brookfield Infrastructure Finance Limited (collectively, the “Debt Issuers” together with Brookfield Infrastructure Preferred Equity Inc. the “Issuers”), and Computershare Trust Company of Canada, as supplemented and amended from time to time (“Indenture”) provides for the distribution of one or more series of unsecured debentures or notes of the Debt Issuers.

On April 17, 2017, the Debt Issuers issued C$400 million of medium-term notes under the Indenture maturing February 22, 2024 in the Canadian bond market with a coupon of 3.3%, which was swapped into U.S. dollars on a matched maturity basis at an all-in rate of 4.0%.

On February 22, 2017, the Debt Issuers issued C$300 million of medium-term notes under the Indenture maturing February 22, 2024 in the Canadian bond market with a coupon of 3.3%, which was swapped into U.S. dollars on a matched maturity basis at an all-in rate of 4.1%.

On October 30, 2015, the Debt Issuers issued C$500 million of medium-term notes under the Indenture in the Canadian bond market in two tranches: C$125 million of three year notes maturing October 30, 2018 with a coupon of 3.0%; and C$375 million of five year notes maturing October 30, 2020 with a coupon of 3.5%. The 3 years and 5 years bonds were swapped into U.S. dollars on a matched maturity basis at an all-in rate of 3.8%.

On March 11, 2015, the Debt Issuers issued C$450 million of medium-term notes under the Indenture maturing March 11, 2022 in the Canadian bond market with a coupon of 3.5%, which was swapped into U.S. dollars on a matched maturity basis at an all-in rate of 3.9%.

As they matured, the partnership repaid C$400 million of medium-term notes onOctober 10, 2017.

These notes are unconditionally guaranteed by our partnership and its subsidiaries the Holding LP, Brookfield Infrastructure Holdings (Canada) Inc., Brookfield Infrastructure US Holdings I Corporation and BIP Bermuda Holdings I Limited.

The following tables set forth consolidated summary financial information for our partnership and the Issuers:

For the year ended December 31, 2017 US$ MILLIONS	Our partnership(2)		The Issuers		Subsidiaries of our partnership other than the Issuers(3)		Consolidating adjustments(4)			Our partnership consolidated
Revenues	$	—	$	—	$	—	$	3,535		$	3,535
Net income attributable to partnership(1)	11		—		125		(11		)	125
For the year ended December 31, 2016
Revenues	$	—	$	—	$	—	$	2,115		$	2,115
Net income attributable to partnership(1)	285		—		487		(285		)	487
For the year ended December 31, 2015
Revenues	$	—	$	—	$	—	$	1,855		$	1,855
Net income attributable to partnership(1)	169		—		301		(169		)	301
As at December 31, 2017
Current assets	$	—	$	—	$	—	$	1,512		$	1,512
Non-current assets	5,514		—		5,987		16,464			27,965
Current liabilities	—		—		—		1,564			1,564
Non-current liabilities	—		1,313		—		13,126			14,439
Non-controlling interests—Redeemable Partnership Units held by Brookfield	—		—		—		2,012			2,012
Non-controlling interests—in operating subsidiaries	—		—		—		5,875			5,875
Preferred unitholders	—		—		—		595			595
As at December 31, 2016
Current assets	$	—	$	3	$	—	$	1,629		$	1,632
Non-current assets	4,937		297		5,248		9,161			19,643
Current liabilities	—		5		—		1,510			1,515
Non-current liabilities	—		1,004		—		9,112			10,116
Non-controlling interests—Redeemable Partnership Units held by Brookfield	—		—		—		1,860			1,860
Non-controlling interests—in operating subsidiaries	—		—		—		2,771			2,771
Preferred unitholders	—		—		—		375			375

(1) Includes net income attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

(2) Includes investments in all subsidiaries of our partnership under the equity method.

(3) Includes investments in all subsidiaries of the Holding LP, Brookfield Infrastructure Holdings (Canada) Inc., Brookfield Infrastructure US Holdings I Corporation and BIP Bermuda Holdings I Limited under the equity method.

(4) Includes elimination of intercompany transactions and balances necessary to present our partnership on a consolidated basis.

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PREFERRED SHARES

12 Months Ended

Dec. 31, 2017

Share Capital, Reserves And Other Equity Interest [Abstract]

PREFERRED SHARES

PREFERRED SHARES

As at December 31, 2017, Brookfield Infrastructure Holdings (Canada) Inc., Brookfield Infrastructure US Holdings I Corporation and BIP Bermuda Holdings I Limited (wholly owned subsidiaries of Brookfield Infrastructure) have issued 196,000, 1 and 400,000 preferred shares, respectively, to wholly owned subsidiaries of Brookfield, for proceeds of $5 million, $5 million and $10 million, respectively (2016: $5 million, $5 million and $10 million, respectively). Each preferred share is non-voting and is redeemable at $25 per share except in the case of the preferred share issued by Brookfield Infrastructure US Holdings I Corporation, which is redeemable for $5 million. Each of these preferred shares is redeemable, together with any accrued and unpaid dividends, at the option of the issuer on or after the tenth anniversary of the date of issue, subject to certain restrictions. Further, these preferred shares entitle the holders thereof to a fixed cumulative 6% preferential cash dividend payable quarterly as and when declared by the issuer’s board of directors. At December 31, 2017, there were no dividends in arrears (2016: $nil).

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REVENUES

12 Months Ended

Dec. 31, 2017

Revenue [abstract]

REVENUES

REVENUES

Brookfield Infrastructure’s revenue arises from the rendering of services by the following operating segments:

US$ MILLIONS	2017		2016		2015
Utilities
Regulated Transmission	$	938	$	27	$	43
Regulated Terminal	301		299		330
Regulated Distribution	546		499		491
Transport
Rail	296		270		316
Ports	681		360		220
Toll Roads	313		262		113
Energy
Transmission & Storage	150		141		105
District Energy	310		257		237
	$	3,535	$	2,115	$	1,855

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INTEREST EXPENSE

12 Months Ended

Dec. 31, 2017

Analysis of income and expense [abstract]

INTEREST EXPENSE

INTEREST EXPENSE

US$ MILLIONS	2017		2016		2015
Interest on corporate facility	$	12	$	12	$	5
Interest on corporate debt	51		39		22
Interest on non-recourse borrowings	361		338		334
Other financing fees	4		3		6
	$	428	$	392	$	367

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PAYROLL EXPENSE

12 Months Ended

Dec. 31, 2017

Analysis of income and expense [abstract]

PAYROLL EXPENSE

PAYROLL EXPENSE

Our partnership has no key employees or directors; therefore Brookfield Infrastructure does not remunerate key management personnel. Key decision makers of Brookfield Infrastructure are all employees of the ultimate parent company who provide management services under Brookfield Infrastructure’s Master Services Agreement. Details of the management fees paid in lieu of payroll are disclosed in Note 32, Related Party Transactions.

Throughout the year, the General Partner in its capacity as our partnership’s general partner, incurs director fees, a portion of which are charged to our partnership in accordance with the limited partnership agreement. Less than $1 million in director fees were incurred during the year ended December 31, 2017 (2016: less than $1 million, 2015: less than $1 million).

For the year ended December 31, 2017, payroll expense, including benefits at Brookfield Infrastructure’s subsidiaries was $519 million (2016: $309 million, 2015: $212 million).

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NON-WHOLLY OWNED SUBSIDIARIES

12 Months Ended

Dec. 31, 2017

Interests In Other Entities [Abstract]

NON-WHOLLY OWNED SUBSIDIARIES

SUBSIDIARIES

The following provides information about our partnership’s wholly-owned subsidiaries as of December 31, 2017 and 2016:

			Ownership interest (%)
		Country of incorporation
Defined Name	Name of entity		2017	2016
Transport
Australian rail operation	Arc Infrastructure Holdings No. 1 Pty Ltd	Australia	100	100
Energy
Australian energy distribution operation	Tas Gas Networks Pty Ltd	Australia	100	100

The following table presents details of non-wholly owned subsidiaries of our partnership:

			Ownership Interest (%)		Voting interest (%)
		Country of incorporation
Defined Name	Name of entity		2017	2016	2017	2016
Utilities
U.K. regulated distribution operation	BUUK Infrastructure Holdings Limited	U.K.	80	80	80	80
Australian regulated terminal operation	DBCT Management Pty Ltd(1)	Australia	71	71	100	100
Colombian regulated distribution operation	Empresa de Energia de Boyaca S.A.(1)	Colombia	17	17	100	100
Brazilian regulated gas transmission operation	Nova Transportadora do Sudeste S.A. (1),(2)	Brazil	28	—	90	—
Transport
U.K. ports operation	Brookfield Port Acquisitions (UK) Limited(1)	U.K.	59	59	100	100
Australian ports operation	Linx Cargo Care Group Pty Ltd(1),(3)	Australia	27	27	67	67
Chilean toll roads	Sociedad Concesionaria Vespucio Norte Express S.A.(1)	Chile	51	51	89	89
Indian toll roads	BIF India Holdings Pte Ltd(1),(4)	Singapore	40	40	93	93
Peruvian toll roads	Rutas de Lima S.A.C(1),(5)	Peru	17	17	57	57
Energy
North American gas storage operation(6)	Warwick Gas Storage L.P.(1)	Canada	25	25	100	100
Canadian district energy operation	Enwave Energy Corporation(1)	Canada	25	25	100	100
U.S. district energy operation	Enwave USA(1)	U.S.	40	40	100	100
North American gas storage operation(6)	Lodi Gas Storage(1)	U.S.	40	40	100	100
North American gas storage operation(6)	Rockpoint Gas Storage Partners  L.P.(1),(7)	U.S.	40	40	100	100
Corporate & Other
Holding LP	Brookfield Infrastructure L.P.	Bermuda	70	70	100	100

(1) For the above noted subsidiaries, our partnership has entered into voting arrangements to provide our partnership with the ability to direct the relevant activities of the investee. Our partnership controls these investees given that our partnership is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Our partnership exercises judgment to determine the level of variability that will achieve control over an investee, particularly in circumstances where our partnership’s voting interest differs from its ownership interest in an investee. The following were considered to determine whether our partnership controls these investees: the degree of power (if any) held by other investors, the degree of exposure to variability of each investor, the determination of whether any general partner removal rights are substantive and the purpose and design of the investee.

(2) In April 2017, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund (the “consortium”), acquired an effective 28% interest in Nova Transportadora do Sudeste S.A. (“NTS”), a Brazilian regulated gas transmission business, for total consideration of $1.6 billion.

(3) In August 2016, Brookfield Infrastructure expanded its ports business to Australia as it acquired a 27% interest in Linx Cargo Care Group Pty Ltd through a Brookfield-sponsored infrastructure fund, along with institutional partners (the “Brookfield Consortium”) for total consideration of $145 million.

(4) In March 2016, Brookfield Infrastructure acquired a 40% interest in a toll road business in India from Gammon Infrastructure Projects Limited for consideration of $42 million through a Brookfield-sponsored infrastructure fund.

(5) In June 2016, Brookfield Infrastructure acquired a 17% interest in Rutas de Lima S.A.C. for total consideration of $127 million through a Brookfield-sponsored infrastructure fund.

(6) North American gas storage operations include Warwick Gas Storage L.P., Lodi Gas Storage and Rockpoint Gas Storage Partners L.P.

(7) In July 2016, Brookfield Infrastructure acquired a40%interest in Rockpoint Gas Storage Partners L.P. for consideration of$227 millionthrough a Brookfield-sponsored infrastructure fund.

NON-WHOLLY OWNED SUBSIDIARIES

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Financial Position:

	As of December 31, 2017
US$ MILLIONS	Current Assets		Non-Current Assets		Current Liabilities		Non-Current Liabilities		Non-Controlling Interest in Operating Subsidiaries		Partnership Capital(1)
Utilities
U.K. regulated distribution	$	107	$	3,550	$	281	$	2,261	$	217	$	898
Australian regulated terminal	38		2,229		34		2,035		62		136
Colombian regulated distribution	68		764		26		438		302		66
Brazilian regulated gas transmission operation	322		5,990		73		2,015		3,081		1,143
Transport
U.K. port operation	44		880		133		353		179		259
Australian port operation	163		628		101		218		346		126
Chilean toll roads	84		1,116		59		989		75		77
Peruvian toll roads	101		1,356		18		674		644		121
Indian toll roads	58		256		30		185		60		39
Energy
North American gas storage operation	206		1,259		244		409		502		310
Canadian district energy operation	75		699		55		394		243		82
U.S. district energy operation	37		799		19		668		78		71
Corporate & Other
Holding LP and other	127		244		392		2,060		84		(2,165		)
Total	$	1,430	$	19,770	$	1,465	$	12,699	$	5,873	$	1,163

(1) Attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

	As of December 31, 2016
US$ MILLIONS	Current Assets		Non-Current Assets		Current Liabilities			Non-Current Liabilities		Non-Controlling Interest in Operating Subsidiaries		Partnership Capital(1)
Utilities
U.K. regulated distribution	$	65	$	2,985	$	154		$	1,919	$	183	$	794
Australian regulated terminal	27		2,162		(9		)	1,926		70		202
Colombian regulated distribution	55		701		27			369		294		66
Transport
U.K. port operation	42		754		108			324		150		214
Australian port operation	142		587		94			205		315		115
Chilean toll roads	102		1,069		50			941		89		91
Brazilian toll roads	42		466		27			—		189		292
Peruvian toll roads	127		1,261		27			635		610		116
Indian toll roads	52		264		36			186		58		36
Energy
North American gas storage	199		1,141		136			478		452		274
Canadian district energy operation	15		570		13			290		209		73
U.S. district energy operation	43		697		62			537		73		68
Corporate & Other
Holding LP and other	631		377		677			810		79		(558		)
Total	$	1,542	$	13,034	$	1,402		$	8,620	$	2,771	$	1,783

(1) Attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Operating Results:

	Year ended December 31, 2017
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income (loss)			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	385	$	21		$	29		$	114		$	118
Australian regulated terminal operation	301		15			3			35			7
Colombian regulated distribution operation	161		12			38			2			7
Brazilian regulated gas transmission operation	938		349			(160		)	146			(72		)
Transport
U.K. port operation	180		8			21			22			29
Australian port operation	501		(7		)	28			(3		)	9
Chilean toll roads	154		—			7			—			8
Peruvian toll roads	103		12			22			2			5
Indian toll roads	57		(2		)	4			(1		)	3
Energy
North American gas storage operation	149		30			74			18			47
Canadian district energy operation	95		(2		)	39			—			13
U.S. district energy operation	131		10			40			7			26
Corporate & Other
Holding LP and other	22		(3		)	1			(349		)	(410		)
Total	$	3,177	$	443		$	146		$	(7	)	$	(210	)

	Year ended December 31, 2016
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income (loss)			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	347	$	12		$	(14	)	$	79		$	(55	)
Australian regulated terminal operation	299		15			(5		)	46			(12		)
Colombian regulated distribution operation	150		10			45			2			10
Transport
U.K. port operation	178		11			(37		)	20			(52		)
Australian port operation	182		(18		)	(24		)	(7		)	(8		)
Chilean toll roads	127		(9		)	7			(10		)	8
Brazilian toll roads	—		6			38			5			25
Peruvian toll roads	97		(8		)	(7		)	(2		)	(1		)
Indian toll roads	39		(3		)	1			(3		)	—
Energy
North American gas storage operation	100		1			—			1			—
Canadian district energy operation	79		(1		)	31			1			11
U.S. district energy operation	111		(6		)	31			—			20
Corporate & Other
Holding LP and other	15		31			1			31			180
Total	$	1,724	$	41		$	67		$	163		$	126

	Year ended December 31, 2015
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	339	$	21		$	25		$	122		$	101
Australian regulated terminal operation	330		15			(4		)	68			(9		)
Colombian regulated distribution operation	152		13			(26		)	16			(9		)
Transport
U.K. port operation	220		7			13			22			18
Chilean toll roads	113		(7		)	(20		)	(15		)	(21		)
Energy
North American gas storage operation	20		(8		)	5			(12		)	1
Canadian district energy operation	80		—			6			—			2
U.S. district energy operation	114		(6		)	8			(3		)	5
Corporate & Other
Holding LP and other	21		55			(90		)	5			(32		)
Total	$	1,389	$	90		$	(83	)	$	203		$	56

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Cash Flows:

	Cash Flow Activities
	Year ended December 31, 2017									Year ended December 31, 2016
US$ MILLIONS	Operating			Investing			Financing			Operating			Investing			Financing
Utilities
U.K. regulated distribution operation	$	220		$	(343	)	$	129		$	244		$	(487	)	$	245
Australian regulated terminal operation	96			(9		)	(87		)	128			(22		)	(106		)
Colombian regulated distribution operation	7			(22		)	26			17			(18		)	—
Brazilian regulated gas transmission operation	819			83			(839		)	—			—			—
Transport
U.K. port operation	46			(40		)	(10		)	33			(24		)	(14		)
Australian port operation	37			(39		)	12			7			(99		)	154
Chilean toll roads	56			(5		)	(88		)	63			(1		)	(99		)
Brazilian toll roads	—			—			—			2			(70		)	70
Peruvian toll roads	46			(67		)	—			29			25			1
Indian toll roads	30			(7		)	(22		)	(7		)	28			(10		)
Energy
North American gas storage operation	55			(9		)	(76		)	(12		)	6			46
Canadian district energy operation	26			(82		)	102			27			(18		)	(13		)
U.S. district energy operation	24			8			(28		)	26			(33		)	9
Corporate & Other
Holding LP and other	(98		)	(5,089		)	4,721			124			(282		)	618
Total	$	1,364		$	(5,621	)	$	3,840		$	681		$	(995	)	$	901

	Cash Flow Activities
	Year ended December 31, 2015
US$ MILLIONS	Operating			Investing			Financing
Utilities
U.K. regulated distribution operation	$	164		$	(242	)	$	92
Australian regulated terminal operation	103			(37		)	(67		)
New England electricity transmission operation	2			—			(2		)
Colombian regulated distribution operation	16			(6		)	(7		)
Transport
U.K. port operation	19			(66		)	61
Australian port operation	—			—			—
Chilean toll roads	70			—			(38		)
Energy
North American gas storage operation	(3		)	(1		)	1
Canadian district energy operation	22			(16		)	(23		)
U.S. district energy operation	21			(13		)	(7		)
Corporate & Other
Holding LP and other	92			(650		)	554
Total	$	506		$	(1,031	)	$	564

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INCOME TAXES

12 Months Ended

Dec. 31, 2017

Income Taxes [Abstract]

Income Taxes

INCOME TAXES

Our partnership is a flow through entity for tax purposes and as such is not subject to taxation. However, income taxes are recognized for the amount of taxes payable by the partnership’s corporate subsidiaries and for the impact of deferred tax assets and liabilities related to such subsidiaries.

(a) Deferred Income Tax Balances

The sources of deferred income tax balances are as follows:

	As of December 31
US$ MILLIONS	2017			2016
Deferred income tax assets
Tax losses carried forward	$	361		$	357
Financial instruments and other	—			125
	$	361		$	482
Deferred income tax liabilities
Property, plant and equipment and investment properties	$	(1,374	)	$	(1,306	)
Intangible assets	(1,761		)	(714		)
Financial instruments and other	$	(9	)	$	—
	$	(3,144	)	$	(2,020	)
Net deferred income tax liabilities	$	(2,783	)	$	(1,538	)
Reflected in the statement of financial position as follows:
Deferred income tax assets	$	66		$	74
Deferred income tax liabilities	(2,849		)	(1,612		)
Net deferred income tax liabilities	$	(2,783	)	$	(1,538	)

The sources of deferred income tax balances and movements are as follows:

				Recognized in
US$ MILLIONS	Jan. 1, 2017			Net Income			Other Comprehensive Income			Other(1)			Acquisitions (Dispositions)			Dec. 31, 2017
Deferred income tax assets related to non-capital losses and capital losses	$	357		$	(19	)	$	—		$	23		$	—		$	361
Deferred income tax liabilities related to differences in tax and book basis, net	(1,895		)	(48		)	(200		)	(71		)	(930		)	(3,144		)
Net deferred income tax liabilities	$	(1,538	)	$	(67	)	$	(200	)	$	(48	)	$	(930	)	$	(2,783	)

				Recognized in
US$ MILLIONS	Jan. 1, 2016			Net Income		Other Comprehensive Income			Other(1)		Acquisitions (Dispositions)			Dec. 31, 2016
Deferred income tax assets related to non-capital losses and capital losses	$	239		$	17	$	—		$	4	$	97		$	357
Deferred income tax liabilities related to differences in tax and book basis, net	(1,542		)	1		(75		)	52		(331		)	(1,895		)
Net deferred income tax liabilities	$	(1,303	)	$	18	$	(75	)	$	56	$	(234	)	$	(1,538	)

(1) Other items relates to foreign exchange as deferred income taxes are calculated based on the functional currency of each operating entity.

The amount of non-capital and capital losses and deductible temporary differences for which no deferred income tax assets have been recognized is approximately $859 million (2016: $820 million). Of the $859 million (2016: $820 million) deductible temporary differences not recognized, $480 million (2016: $442 million) relates to capital losses which carry forward indefinitely and have no expiry dates. The remaining $379 million (2016: $378 million) relates to non-capital losses, of which $7 million (2016: $5 million) expire between 2020 to 2030 and $372 million (2016: $373 million) that carry forward indefinitely and have no expiry dates.

In 2016, as part of the acquisition of our Indian toll road business, a net deferred tax asset in respect of tax losses of $10 million was recognized. The benefit of these losses has been recognized based on management’s best estimate that it is considered probable that future taxable profits would be available against which such losses can be utilized.

(b) Income Tax Recognized in Profit or Loss

The major components of income tax expense include the following:

	For the year ended December 31,
US$ MILLIONS	2017			2016			2015
Tax expense (recovery) comprises:
Current income tax expense	$	106		$	33		$	22
Deferred income tax expense (recovery)
Origination and reversal of temporary differences	92			(62		)	4
Changes in tax rates or the imposition of new taxes	(41		)	1			(28		)
Previously unrecognized deferred taxes	16			43			(2		)
Total income tax expense (recovery)	$	173		$	15		$	(4	)
Net income before income tax expense reconciles to income tax expense (recovery) as follows:
Net income before income tax	$	747		$	543		$	387
Income tax expense calculated at the domestic rates applicable to profits in the country concerned	304			77			74
Change in substantively enacted tax rates	(41		)	1			(28		)
Earnings from investments in associates and joint ventures	(12		)	(34		)	(16		)
Portion of gains subject to different tax rates	2			(54		)	2
Taxable income attributable to non-controlling interests	(65		)	(7		)	(25		)
International operations subject to different tax rates	(39		)	(6		)	(8		)
Deferred tax assets not recognized	15			41			4
Permanent differences and other	9			(3		)	(7		)
Income tax expense (recovery) recognized in profit or loss	$	173		$	15		$	(4	)

As the partnership is not subject to tax, the above reconciliation has been prepared using a composite statutory rate for jurisdictions where Brookfield Infrastructure’s subsidiaries operate. The composite rate has increased due to changes in the related operating income in the various subsidiaries and changes in local statutory rates.

The partnership has approximately $2,411 million (2016: $2,230 million) of temporary differences associated with investments in subsidiaries, and associates for which no deferred income taxes have been provided.

(c) Income Tax Recognized Directly in Other Comprehensive Income

US$ MILLIONS	2017			2016			2015
Deferred income tax arising on income and expenses recognized in other comprehensive income:
Revaluation of property, plant and equipment	$	(204	)	$	(90	)	$	(130	)
Cash flow hedges	8			8			(15		)
Other	(4		)	7			4
Total income tax expense recognized directly in other comprehensive income	$	(200	)	$	(75	)	$	(141	)

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PARTNERSHIP CAPITAL

12 Months Ended

Dec. 31, 2017

Equity [abstract]

PARTNERSHIP CAPITAL

PARTNERSHIP CAPITAL

As at December 31, 2017, our partnership’s capital structure was comprised of three classes of partnership units: units, preferred units and general partnership units. Units entitle the holder to their proportionate share of distributions. Preferred units entitle the holder to cumulative preferential cash distributions in accordance with their terms. General partnership units entitle the holder the right to govern the financial and operating policies of our partnership. The Holding LP’s capital structure is composed of four classes of partnership units: Special General Partner Units, Holding LP Class A Preferred Units, Managing General Partner Units and Redeemable Partnership Units held by Brookfield.

In its capacity as the holder of the Special General Partner Units of the Holding LP, the special general partner is entitled to incentive distribution rights which are based on the amount by which quarterly distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed specified target levels. To the extent distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed $0.203 per quarter, the incentive distribution rights entitle the special general partner to 15% of incremental distributions above this threshold. To the extent that distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed $0.22 per unit, the incentive distribution rights entitle the special general partner to 25% of incremental distributions above this threshold. During the year, the Holding LP paid incentive distributions of $113 million (2016: $80 million, 2015: $64 million).

The Holding LP has issued 115.8 million Redeemable Partnership Units to Brookfield, which may, at the request of the holder, require the Holding LP to redeem the Redeemable Partnership Units for cash in an amount equal to the market value of our units. This right is subject to our partnership’s right of first refusal which entitles it, at its sole discretion, to elect to acquire any Redeemable Partnership Units so presented to the Holding LP in exchange for one of our partnership’s units (subject to certain customary adjustments). Both the units issued by our partnership and the Redeemable Partnership Units issued by the Holding LP have the same economic attributes in all respects, except for the redemption right described above. The Redeemable Partnership Units participate in earnings and distributions on a per Redeemable Partnership Unit basis equivalent to the per unit participation of the units of our partnership. Our partnership reflects the Redeemable Partnership Units issued to Brookfield by the Holding LP as non-controlling interest–Redeemable Partnership Units held by Brookfield.

On September 14, 2016, our partnership completed a three-for-two split of its units by way of a subdivision of units, whereby unitholders received an additional one-half of a unit for each unit held, resulting in the issuance of approximately 115 million additional units. Any fractional units otherwise issuable to registered holders as a result of the Unit Split were rounded up to the nearest whole unit. Our preferred units were not affected by the Unit Split. The Managing General Partner Units, Special General Partner Units and Redeemable Partnership Units of the Holding LP were concurrently split to reflect the Unit Split.

(a) Special and Limited Partnership Capital

	Special General Partner Units			Limited Partnership Units					Total
UNITS MILLIONS	2017	2016	2015	2017	2016		2015		2017	2016		2015
Opening balance	1.6	1.6	1.6	259.4	243.2		225.5		261.0	244.8		227.1
Issued for cash	—	—	—	17.2	16.4		20.2		17.2	16.4		20.2
Repurchased and cancelled	—	—	—	—	(0.2	)	(2.5	)	—	(0.2	)	(2.5	)
Ending balance	1.6	1.6	1.6	276.6	259.4		243.2		278.2	261.0		244.8

	Special General Partner						Limited Partners								Total
US$ MILLIONS	2017		2016		2015		2017		2016			2015			2017		2016			2015
Opening balance	$	19	$	19	$	19	$	4,215	$	3,716		$	3,201		$	4,234	$	3,735		$	3,220
Unit issuance	—		—		—		692		505			582			692		505			582
Repurchased and cancelled	—		—		—		—		(6		)	(67		)	—		(6		)	(67		)
Ending balance	$	19	$	19	$	19	$	4,907	$	4,215		$	3,716		$	4,926	$	4,234		$	3,735

In September 2017, Brookfield Infrastructure issued 16.6 million limited partnership units at $42 per unit under shelf registrations in the U.S. and Canada. In total, $700 million of gross proceeds were raised through the issuance and $28 million in equity issuance costs were incurred. Concurrently, Brookfield Infrastructure issued 7.4 million Redeemable Partnership Units to Brookfield for proceeds of $300 million. As Brookfield participated in the unit offering at a percentage greater than its ownership interest in the Holding LP prior to the equity offering, this resulted in a slight decrease in our partnership’s ownership interest in the Holding LP without resulting in a loss of control. The difference between the proportionate amount by which the non-controlling interest in Holding LP was increased and the proceeds of the Redeemable Partnership Unit offering resulted in a gain of $6 million that was recognized directly in equity.

The gain on changes in ownership interest recognized in equity is recorded as ownership changes within the Statements of Partnership Capital. Amounts in accumulated other comprehensive income at the date of the unit offering that were attributable to the limited partners were ratably allocated to accumulated other comprehensive income attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield.

In December 2016, Brookfield Infrastructure issued 15.6 million limited partnership units at $32 per unit under shelf registrations in the U.S. and Canada. In total, $500 million of gross proceeds were raised through the issuance and $20 million in equity issuance costs were incurred. Concurrently, Brookfield Infrastructure issued 8.1 million Redeemable Partnership Units to Brookfield for proceeds of $250 million. The difference between the proportionate amount by which the non-controlling interest in Holding LP was increased and the proceeds of the Redeemable Partnership Unit offering resulted in a gain of $16 million that was recognized directly in equity.

During the year ended December 31, 2016, Brookfield Infrastructure repurchased and cancelled less than 1 million units for $6 million (2015: 2.5 million units for $67 million) and incurred less than $1 million in commission costs (2015: less than $1 million).No units were repurchased or cancelled in 2017.

In April 2015, Brookfield Infrastructure issued approximately 20 million units at $30 per unit under shelf registrations in the U.S. and Canada. In total, $600 million of gross proceeds were raised through the issuance and $24 million in equity issuance costs were incurred.

In June 2010, we implemented a distribution reinvestment plan (the “Plan”) that allows eligible holders of our partnership to purchase additional units by reinvesting their cash distributions. Under the Plan, units are acquired at a price per unit calculated by reference to the volume weighted average of the trading price for our units on the New York Stock Exchange for the five trading days immediately preceding the relevant distribution date. During the year, our partnership issued less than 1 million units for proceeds of $20 million (2016: less than 1 million units for proceeds of $25 million, 2015: less than 1 million units for proceeds of $6 million) under the Plan.

The weighted average number of Special General Partner Units outstanding for the year ended December 31, 2017 was 1.6 million (2016: 1.6 million, 2015: 1.6 million). The weighted average number of limited partnership units outstanding for the year ended December 31, 2017 was 264.6 million (2016: 244.7 million, 2015: 238.9 million).

(b) Non-controlling interest—Redeemable Partnership Units held by Brookfield

	Non-controlling interest— Redeemable Partnership Units held by Brookfield
UNITS MILLIONS	2017	2016	2015
Opening balance	108.4	100.3	88.1
Issued for cash	7.4	8.1	12.2
Ending balance	115.8	108.4	100.3

	Non-controlling interest— Redeemable Partnership Units held by Brookfield
US$ MILLIONS	2017		2016		2015
Opening balance	$	1,778	$	1,528	$	1,178
Unit issuance	300		250		350
Ending balance	$	2,078	$	1,778	$	1,528

In September 2017, Brookfield Infrastructure issued 7.4 million Redeemable Partnership Units to Brookfield for proceeds of $300 million.

In December 2016, Brookfield Infrastructure issued 8.1 million Redeemable Partnership Units to Brookfield for proceeds of $250 million.

In April 2015, Brookfield Infrastructure issued 12.2 million Redeemable Partnership Units to Brookfield for proceeds of $350 million.

The weighted average number of Redeemable Partnership Units outstanding for the year ended December 31, 2017 was 110.6 million (2016: 100.9 million, 2015: 96.9 million).

(c) Preferred Unitholders’ Capital

	Preferred Units
UNITS MILLIONS	2017	2016	2015
Opening balance	20.0	10.0	—
Issued for cash	12.0	10.0	10.0
Ending balance	32.0	20.0	10.0

	Preferred Units
US$ MILLIONS	2017		2016		2015
Opening balance	$	375	$	189	$	—
Unit issuance	220		186		189
Ending balance	$	595	$	375	$	189

Subsequent to year end, on January 23, 2018, our partnership issued 8 million Series 9 Preferred Units at C$25 per unit with a quarterly fixed distribution at a rate of 5.00% annually for the initial period ending March 31, 2023. In total, C$200 million or $161 million of gross proceeds were raised, $4 million in underwriting costs were incurred and less than $1 million in issuance costs were incurred.

On January 26, 2017, our partnership issued 12 million Series 7 Preferred Units at C$25 per unit with a quarterly fixed distribution at a rate of 5.00% annually for the initial period ending March 31, 2022. In total, C$300 million or $225 million of gross proceeds were raised, $5 million in underwriting costs were incurred and less than $1 million in issuance costs were incurred.

In August 2016, our partnership issued ten million Series 5 Preferred Units at C$25 per unit with a quarterly fixed distribution at a rate of 5.35% annually for the initial period ending September 30, 2021. In total, C$250 million or $190 million of gross proceeds were raised and $4 million in issuance costs were incurred.

In December 2015, our partnership issued five million Series 3 Preferred Units at C$25 per unit with a quarterly fixed distribution at a rate of 5.50% annually for the initial period ending December 31, 2020. In total, C$125 million or $95 million of gross proceeds were raised and $2 million in issuance costs were incurred.

In March 2015, our partnership issued five million Series 1 Preferred Units at C$25 per unit with a quarterly fixed distribution at a rate of 4.50% annually for the initial period ending June 30, 2020. In total, C$125 million or $100 million of gross proceeds were raised and $4 million in issuance costs were incurred.

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ACCUMULATED OTHER COMPREHENSIVE INCOME

12 Months Ended

Dec. 31, 2017

Disclosure of analysis of other comprehensive income by item [abstract]

ACCUMULATED OTHER COMPREHENSIVE INCOME

ACCUMULATED OTHER COMPREHENSIVE INCOME

(a) Attributable to Limited Partners’

US$ MILLIONS	Revaluation Surplus			Foreign Currency Translation			Net Investment Hedges			Cash Flow Hedges			Available for sale			Unrealized Actuarial Losses			Equity accounted investments			Accumulated Other Comprehensive Income
Balance at December 31, 2015	$	1,042		$	(889	)	$	99		$	(140	)	$	(9	)	$	(13	)	$	465		$	555
Other comprehensive income (loss)	93			(5		)	117			9			5			(17		)	156			358
Other items (note 26)	(178		)	3			(1		)	1			—			—			(2		)	(177		)
Balance at December 31, 2016	$	957		$	(891	)	$	215		$	(130	)	$	(4	)	$	(30	)	$	619		$	736
Other comprehensive income (loss)	19			56			(187		)	104			4			3			129			128
Balance at December 31, 2017	$	976		$	(835	)	$	28		$	(26	)	$	—		$	(27	)	$	748		$	864

(b) Attributable to General Partner

US$ MILLIONS	Revaluation Surplus			Foreign Currency Translation			Net Investment Hedges			Cash Flow Hedges			Available for sale		Unrealized Actuarial Losses		Equity accounted investments		Accumulated Other Comprehensive Income
Balance at December 31, 2015	$	7		$	(5	)	$	1		$	(1	)	$	—	$	—	$	2	$	4
Other comprehensive income (loss)	1			—			2			—			—		—		1		4
Other items (note 26)	(1		)	—			—			—			—		—		—		(1		)
Balance at December 31, 2016	$	7		$	(5	)	$	3		$	(1	)	$	—	$	—	$	3	$	7
Other comprehensive income (loss)	—			(1		)	(2		)	1			—		—		1		(1		)
Balance at December 31, 2017	$	7		$	(6	)	$	1		$	—		$	—	$	—	$	4	$	6

(c) Attributable to Non-controlling interest—Redeemable Partnership Units held by Brookfield

US$ MILLIONS	Revaluation Surplus			Foreign Currency Translation			Net Investment Hedges			Cash Flow Hedges			Available for sale			Unrealized Actuarial Losses			Equity accounted investments		Accumulated Other Comprehensive Income
Balance at December 31, 2015	$	447		$	(358	)	$	38		$	(61	)	$	(4	)	$	(2	)	$	194	$	254
Other comprehensive income (loss)	38			(4		)	49			4			2			(7		)	65		147
Other items (note 26)	(68		)	(3		)	1			(1		)	(1		)	—			2		(70		)
Balance at December 31, 2016	$	417		$	(365	)	$	88		$	(58	)	$	(3	)	$	(9	)	$	261	$	331
Other comprehensive income (loss)	8			26			(77		)	44			1			1			53		56
Balance at December 31, 2017	$	425		$	(339	)	$	11		$	(14	)	$	(2	)	$	(8	)	$	314	$	387

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DISTRIBUTIONS

12 Months Ended

Dec. 31, 2017

Distributions [Abstract]

DISTRIBUTIONS

DISTRIBUTIONS

For the year ended December 31, 2017, distributions to partnership unitholders were $651 million or $1.74 per unit (2016: $535 million or $1.55 per unit, 2015: $479 million or $1.41 per unit). Additionally, incentive distributions were made to the special general partner of $113 million (2016: $80 million, 2015: $64 million).

On February 8, 2018 the Board of Directors of our General Partner approved an 8% increase in our quarterly distribution to $0.47 per unit, payable on March 31, 2018 to unitholders on record as of the close of business on February 28, 2018.

For the year ended December 31, 2017, our partnership declared preferred unit distributions of $30 million or $0.94 per preferred unit (2016: $13 million, 2015: $3 million).

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CONTINGENT ASSETS & LIABILITIES

12 Months Ended

Dec. 31, 2017

Other Provisions, Contingent Liabilities and Contingent Assets [Abstract]

CONTINGENT ASSETS & LIABILITIES

CONTINGENT ASSETS & LIABILITIES

Brookfield Infrastructure, including its associates, had bank and customs guarantees and letters of credit outstanding to third parties totaling $182 million (2016: $141 million). These guarantees are generally supported by cash on deposit with banks.

Our partnership and its subsidiaries are contingently liable with respect to litigation and claims that arise in the normal course of operations.

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CONTRACTUAL COMMITMENTS

12 Months Ended

Dec. 31, 2017

Contractual Commitments [Abstract]

CONTRACTUAL COMMITMENTS

CONTRACTUAL COMMITMENTS

In the normal course of business, our partnership will enter into contractual obligations which include commitments relating primarily to contracted project costs for various growth initiatives, committed expenditures associated with gas and electricity sales contracts at our U.K. regulated distribution operation, and operating leases associated with our North American gas storage operations. As at December 31, 2017, our partnership had $1,448 million (2016: $1,201 million) of commitments outstanding, of which 32% mature in less than one year, 42% between two and five years, and 26% after five years.

In addition, pursuant to the Master Service Agreement, on a quarterly basis, Brookfield Infrastructure pays a base management fee to the Service Provider equal to 0.3125% per quarter (1.25% annually) of the market value of our partnership. This fee is recorded on the Consolidated Statements of Operating Results in general and administrative expenses.

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RETIREMENT BENEFIT PLANS

12 Months Ended

Dec. 31, 2017

Employee Benefits [Abstract]

RETIREMENT BENEFIT PLANS

RETIREMENT BENEFIT PLANS

Brookfield Infrastructure offers pension plans to certain employees of its subsidiaries. Brookfield Infrastructure’s obligations under its defined benefit pension plans are determined periodically through the preparation of actuarial valuations. The benefit plans’ expense for 2017 was $10 million (2016: $7 million, 2015: less than $1 million). The discount rate used was 4.1% (2016: 4.2%, 2015: 6.1%) with a rate of compensation of 3.5% (2016: 3.5%, 2015: 3.3%).

US$ MILLIONS	2017			2016
Plan assets	$	228		$	198
Less accrued benefit obligation	(328		)	(296		)
Accrued benefit liability	$	(100	)	$	(98	)

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RELATED PARTY TRANSACTIONS

12 Months Ended

Dec. 31, 2017

Related Party [Abstract]

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS

In the normal course of operations, Brookfield Infrastructure entered into the transactions below with related parties. The immediate parent of Brookfield Infrastructure is our partnership. The ultimate parent of Brookfield Infrastructure is Brookfield. Other related parties of Brookfield Infrastructure represent its subsidiary and operating entities.

a) Transactions with the immediate parent

Throughout the year, the General Partner, in its capacity as our partnership’s general partner, incurs director fees, a portion of which are charged at cost to our partnership in accordance with the limited partnership agreement. Less than $1 million in director fees were incurred during the year ended December 31, 2017 (2016: less than $1 million, 2015: less than $1 million).

b) Transactions with other related parties

Since inception, Brookfield Infrastructure has been party to the Master Services Agreement with the Service Provider.

Pursuant to the Master Services Agreement, on a quarterly basis, Brookfield Infrastructure pays a base management fee, referred to as the Base Management Fee, to the Service Provider equal to 0.3125% per quarter (1.25% annually) of the market value of our partnership. The Base Management Fee was $230 million for the year ended December 31, 2017 (2016: $158 million, 2015: $126 million). As of December 31, 2017, $64 million was outstanding as payable to the Service Provider (2016: $42 million).

For purposes of calculating the Base Management Fee, the market value of our partnership is equal to the aggregate value of all the outstanding units of our partnership (assuming full conversion of Brookfield’s Redeemable Partnership Units in the Holdings LP into units of our partnership), preferred units and securities of the other Service Recipients (as defined in Brookfield Infrastructure’s Master Services Agreement) that are not held by Brookfield Infrastructure, plus all outstanding third party debt with recourse to a Service Recipient, less all cash held by such entities.

During the year ended December 31, 2017, $6 million was reimbursed at cost to the Service Provider (2016: $5 million, 2015: $8 million). These amounts represent third party costs that were paid for by Brookfield on behalf of Brookfield Infrastructure relating to general and administrative expenses, and acquisition related expenses of Brookfield Infrastructure. These expenses were charged to Brookfield Infrastructure at cost.

As of December 31, 2017, Brookfield Infrastructure had a balance receivable of $20 million from subsidiaries of Brookfield (December 31, 2016: $20 million) and loans payable of $75 million to subsidiaries of Brookfield (December 31, 2016: $75 million). The loans are payable in full between 2018 and 2026 with interest rates ranging from 3.8% to 8.5% per annum.

Brookfield Infrastructure, from time to time, will place or receive funds on deposit with or from Brookfield. As atDecember 31, 2017, Brookfield Infrastructure’s deposit balance with Brookfield was less than$1 million (December 31, 2016: $255 million) and earned interest of $1 million for year endedDecember 31, 2017 (2016: less than $1 million, 2015: less than $1 million).

Brookfield Infrastructure’s North American district energy operation provides heating and cooling services and leases office space on market terms with subsidiaries of Brookfield Office Properties Inc. The North American district energy operation also utilizes consulting and engineering services provided by a wholly-owned subsidiary of Brookfield on market terms. For the year ended December 31, 2017, revenues of $8 million were generated (2016: $1 million, 2015: less than $1 million) and expenses of $4 million were incurred (2016: less than $1 million, 2015: less than $1 million).

Brookfield Infrastructure utilizes a wholly-owned subsidiary of Brookfield to negotiate and purchase insurance and assess the adequacy of insurance on behalf of our partnership and certain subsidiaries. During the year ended December 31, 2017, Brookfield Infrastructure paid less than $1 million for these services (2016: less than $1 million, 2015: less than $1 million).

Brookfield Infrastructure’s U.K. port operation provides port marine services on market terms to a subsidiary acquired by Brookfield Business Partners LP during 2017. For the year ended December 31, 2017, $2 million of revenues were generated.

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DERIVATIVE FINANCIAL INSTRUMENTS

12 Months Ended

Dec. 31, 2017

Financial Instruments [Abstract]

DERIVATIVE FINANCIAL INSTRUMENTS

DERIVATIVE FINANCIAL INSTRUMENTS

Brookfield Infrastructure’s activities expose it to a variety of financial risks, including market risk (i.e. currency risk, interest rate risk, commodity risk and other price risk), credit risk and liquidity risk. Brookfield Infrastructure and its subsidiaries selectively use derivative financial instruments principally to manage these risks.

The aggregate notional amount of Brookfield Infrastructure’s derivative positions at December 31, 2017 and 2016 were as follows:

US$ MILLIONS	Note	2017		2016
Foreign exchange contracts	(a)	$	3,816	$	4,488
Interest rates swaps and other	(b)	5,013		4,416
		$	8,829	$	8,904

The following table presents the change in fair values of Brookfield Infrastructure’s derivative positions during the years ended December 31, 2017 and 2016:

US$ MILLIONS	Unrealized Gains on Derivative Financial Assets		Unrealized Losses on Derivative Financial Liabilities			Net Change During 2017			Net Change During 2016
Foreign exchange derivatives	$	—	$	(305	)	$	(305	)	$	97
Interest rate derivative	132		(69		)	63			15
	$	132	$	(374	)	$	(242	)	$	112

(a) Foreign Exchange

Brookfield Infrastructure held the following foreign exchange contracts with notional amounts at December 31, 2017 and 2016.

	Notional Amount (U.S. Dollars)				Average Exchange Rate
US$ MILLIONS	2017		2016		2017	2016
Foreign exchange contracts
Australian dollars	$	1,214	$	2,133	0.74	0.73
British pounds	2,069		1,810		1.30	1.30
European Union euros	491		374		1.17	1.14
Brazilian reais	—		144		—	3.37
Canadian dollars	42		27		0.77	0.76
	$	3,816	$	4,488

(b) Interest Rates

At December 31, 2017, Brookfield Infrastructure held interest rate and cross currency interest rate swap contracts having an aggregate notional amount of $4,843 million (2016: $4,261 million). Brookfield Infrastructure has inflation linked swaps with an aggregate notional amount of $170 million (2016: $155 million).

Other Information Regarding Derivative Financial Instruments

The following table presents the notional amounts underlying Brookfield Infrastructure’s derivative instruments by term to maturity as at December 31, 2017 and the comparative notional amounts at December 31, 2016, for both derivatives that are classified as fair value through profit or loss and derivatives that qualify for hedge accounting:

	2017								2016
US$ MILLIONS	< 1 year		1 to 5 years		> 5 years		Total Notional Amount		Total Notional Amount
Fair value through profit or loss
Foreign exchange derivatives	$	640	$	807	$	—	$	1,447	$	1,351
Interest rate derivatives
Interest rate and cross currency interest rate swaps	273		484		59		816		752
Inflation linked swaps	—		—		170		170		155
	$	913	$	1,291	$	229	$	2,433	$	2,258
Elected for hedge accounting
Foreign exchange derivatives	$	1,788	$	581	$	—	$	2,369	$	3,136
Interest rate derivatives
Interest rate and cross currency interest rate swaps	99		2,051		1,877		4,027		3,509
	$	1,887	$	2,632	$	1,877	$	6,396	$	6,645

The following table classifies derivatives elected for hedge accounting during the years ended December 31, 2017 and 2016 as either cash flow hedges or net investment hedges. Changes in the fair value of the effective portion of the hedges are recorded in either other comprehensive income or net income, depending on the hedge classification, whereas changes in the fair value of the ineffective portion of the hedge are recorded in net income:

	2017							2016
AS AT AND FOR THE YEARS ENDED (MILLIONS)	Notional		Effective Portion			Ineffective Portion		Notional		Effective Portion		Ineffective Portion
Cash flow hedges	$	4,027	$	15		$	—	$	3,509	$	30	$	1
Net investment hedges	2,369		(197		)	—		3,136		53		—
	$	6,396	$	(182	)	$	—	$	6,645	$	83	$	1

Our partnership settles the difference between the contracted fixed and floating rates of its interest rate swaps on a net basis. All interest rate swap contracts exchanging floating rate interest amounts for fixed rate interest amounts are designated as cash flow hedges in order to reduce our partnership’s cash flow exposure resulting from variable interest rates on borrowings. The interest rate swaps and the interest payments on the borrowings occur simultaneously and the amount accumulated in equity is reclassified to profit or loss over the period that the floating rate interest payments on borrowings affect profit or loss.

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FINANCIAL RISK MANAGEMENT

12 Months Ended

Dec. 31, 2017

Financial Instruments [Abstract]

FINANCIAL RISK MANAGEMENT

FINANCIAL RISK MANAGEMENT

Brookfield Infrastructure is exposed to the following risks as a result of holding financial instruments: capital risk; liquidity risk; market risk (i.e. interest rate risk and foreign currency risk); and credit risk. The following is a description of these risks and how they are managed:

(a) Liquidity Risk Management

Brookfield Infrastructure manages its capital structure to be able to continue as a going concern while maximizing the return to stakeholders. Brookfield Infrastructure’s overall capital strategy remains unchanged from 2016.

The capital structure of Brookfield Infrastructure consists of debt, offset by cash and cash equivalents, and partnership capital comprised of issued capital and accumulated gains.

US$ MILLIONS	2017			2016
Subsidiary and corporate borrowings	$	10,164		$	8,326
Preferred shares	20			20
Cash and cash equivalents(1)	(459		)	(789		)
Net debt	9,725			7,557
Total partnership capital	13,474			9,644
Total capital and net debt	$	23,199		$	17,201
Net debt to capitalization ratio	42		%	44		%

(1) Includes marketable securities.

The Board, along with senior management of the Service Provider, reviews Brookfield Infrastructure’s capital structure and as part of this review, considers the cost of capital and the risk associated with each class of capital.

Brookfield Infrastructure manages its debt exposure by financing its operations on a non-recourse basis with prudent levels of debt, ensuring a diversity of funding sources as well as laddering its maturity profile to minimize refinance risk. Brookfield Infrastructure also borrows in the currency where the asset operates, where possible, in order to hedge its currency risk.

Generally, Brookfield Infrastructure’s equity strategy is to issue equity in conjunction with acquisitions or outsized organic growth initiatives at our businesses. However, Brookfield Infrastructure may also issue equity opportunistically to enhance its liquidity to pursue investments. Brookfield Infrastructure maintains active shelf registrations to enable it to issue securities in both the U.S. and Canadian markets.

Brookfield Infrastructure’s financing plan is to fund its recurring growth capital expenditures with cash flow generated by its operations after maintenance capital expenditure, as well as debt financing that is sized to maintain its credit profile. To fund large scale development projects and acquisitions, Brookfield Infrastructure will evaluate a variety of capital sources including proceeds from selling non-core assets, equity and debt financing. Our partnership will seek to raise additional equity if Brookfield Infrastructure believes it can earn returns on these investments in excess of the cost of the incremental partnership capital.

As disclosed within Note 18, Borrowings, Brookfield Infrastructure has various loan facilities in place. In certain cases, the facilities have financial covenants which are generally in the form of interest coverage ratios and leverage ratios. Brookfield Infrastructure does not have any market capitalization covenants attached to any of its borrowings, nor does it have any other externally imposed capital requirements.

During the years ended December 31, 2017 and 2016, there were no breaches of any loan covenants within Brookfield Infrastructure.

Brookfield Infrastructure attempts to maintain sufficient financial liquidity at all times so that it is able to participate in attractive opportunities as they arise, better withstand sudden adverse changes in economic circumstances and maintain its distribution of FFO to unitholders. Brookfield Infrastructure’s principal sources of liquidity are cash flows from its operations, undrawn credit facilities and access to public and private capital markets. Brookfield Infrastructure also structures the ownership of its assets to enhance its ability to monetize them to provide additional liquidity, if necessary.

Brookfield Infrastructure’s corporate liquidity as at December 31 was as follows:

US$ MILLIONS(1)	2017			2016
Corporate cash and financial assets	$	205		$	549
Availability under committed credit facilities	2,475			2,475
Draws on credit facility	(789		)	—
Commitments under credit facility	(106		)	(46		)
Corporate liquidity	$	1,785		$	2,978

(1) Corporate level only.

Brookfield Infrastructure’s $1.975 billion committed revolving credit facility and $500 million credit facility with Brookfield are available for investments and acquisitions, as well as general corporate purposes. Commitments under the committed revolving credit facility will be available on a revolving basis until June 30, 2022. All amounts outstanding at that time will be repayable in full. The facility is intended to be a bridge to equity financing rather than a permanent source of capital. At December 31, 2017, there was $789 million drawn on this facility (2016: $nil) and $106 million was committed to letters of credit (2016: $46 million). Subsequent to December 31, 2017, we cancelled letters of credit issued by our subsidiaries which amounted to $59 million.

The following tables detail the contractual maturities for Brookfield Infrastructure’s financial liabilities. The tables reflect the undiscounted cash flows of financial liabilities based on the earliest date on which Brookfield Infrastructure can be required to pay. The tables include both interest and principal cash flows:

	Less than 1 year		1-2 years		2-5 years		5+ years		Total contractual cash flows
December 31, 2017
US$ MILLIONS
Accounts payable and other liabilities	$	646	$	45	$	59	$	293	$	1,043
Corporate borrowings	99		—		1,445		557		2,101
Non-recourse borrowings	372		571		2,043		5,101		8,087
Financial liabilities	237		58		930		88		1,313
Interest Expense:
Corporate borrowings	49		47		106		25		227
Non-Recourse borrowings	381		348		864		1,343		2,936

	Less than 1 year		1-2 years		2-5 years		5+ years		Total contractual cash flows
December 31, 2016
US$ MILLIONS
Accounts payable and other liabilities	$	540	$	34	$	26	$	186	$	786
Corporate borrowings	295		93		279		335		1,002
Non-recourse borrowings	286		233		1,708		5,109		7,336
Financial liabilities	229		29		49		74		381
Interest Expense:
Corporate borrowings	40		29		64		14		147
Non-recourse borrowings	361		342		871		1,450		3,024

(b) Market Risk

Market risk is defined for these purposes as the risk that the fair value or future cash flows of a financial instrument held by Brookfield Infrastructure will fluctuate because of the change in market prices. Market risk includes the risk of changes in interest rates, foreign currency exchange rates and equity prices.

Brookfield Infrastructure seeks to minimize the risks associated with foreign currency exchange rates and interest rates primarily through the use of derivative financial instruments to hedge these risk exposures. The use of financial derivatives is governed by Brookfield Infrastructure’s Treasury Policy. Brookfield Infrastructure does not enter into, or trade financial instruments, including derivative financial instruments, for speculative purposes.

The Treasury Policy provides written principles on the use of financial derivatives. With respect to its treasury policy, the Service Provider performs the monitoring, review and approval role and report to the Board on a regular basis.

Financial instruments held by Brookfield Infrastructure that are subject to market risk include other financial assets, borrowings, derivative instruments, such as interest rate and foreign currency contracts, and marketable securities. Our partnership is exposed to equity price risks arising from marketable securities. As at December 31, 2017 the balance of the portfolio was $85 million (2016: $3 million), a 10% change in the value of the portfolio would impact our equity by $9 million and result in an impact on the Consolidated Statement of Comprehensive Income of $9 million.

Interest Rate Risk Management

Brookfield Infrastructure’s primary objectives with respect to interest rate risk management are to ensure that:

• Brookfield Infrastructure is not exposed to interest rate movements that could adversely impact its ability to meet financial obligations;

• Earnings and distributions are not adversely affected;

• Volatility of debt servicing costs is managed within acceptable parameters; and

• All borrowing covenants under various borrowing facilities, including interest coverage ratios, are complied with.

To achieve these objectives, in general terms, Brookfield Infrastructure’s funding mix comprises both fixed and floating rate debt. Fixed rate debt is achieved either through fixed rate debt funding or through the use of financial derivate instruments. In addition, where possible, interest rate risk is minimized by matching the terms of interest rate swap contracts in regulated businesses to the term of the rate period, thus providing natural hedges.

The sensitivity analyses below reflect Brookfield Infrastructure’s exposure to interest rates for both derivative and non-derivative instruments at the reporting date, assuming that a 10 basis point increase or decrease in rates takes place at the beginning of the financial year and is held constant throughout the reporting period. The sensitivity analyses assume a 10 basis point change to reflect the current methodology employed by Brookfield Infrastructure in assessing interest rate risk. Such parallel shift in the yield curve by 10 basis points would have had the following impact, assuming all other variables were held constant:

	2017					2016						2015
US$ MILLIONS	10 bp decrease			10 bp increase		10 bp decrease			10 bp increase			10 bp decrease			10 bp increase
Net income (loss)	$	—		$	—	$	1		$	(1	)	$	2		$	(2	)
Other comprehensive (loss) income	(1		)	1		(1		)	1			(2		)	2

Foreign Currency Risk Management

Brookfield Infrastructure has exposure to foreign currency risk in respect of currency transactions, the value of Brookfield Infrastructure’s net investment, cash flows and capital expenditures that are denominated outside of the U.S. Brookfield Infrastructure’s approach to foreign currency risk management is:

• Brookfield Infrastructure leverages any natural hedges that may exist within its operations;

• Brookfield Infrastructure utilizes local currency debt financing to the extent possible; and

• Brookfield Infrastructure may utilize derivative contracts to the extent that natural hedges are insufficient.

The tables below set out Brookfield Infrastructure’s currency exposure at December 31, 2017, 2016 and 2015:

2017
US$ MILLIONS	USD			AUD		GBP		BRL		CLP		CAD			EUR		COP		PEN		INR		NZD		Total
Assets:
Current assets	$	358		$	276	$	151	$	322	$	85	$	78		$	—	$	68	$	100	$	57	$	17	$	1,512
Non-current assets	4,400			5,770		4,431		8,184		1,117		814			836		764		1,356		256		37		27,965
	$	4,758		$	6,046	$	4,582	$	8,506	$	1,202	$	892		$	836	$	832	$	1,456	$	313	$	54	$	29,477
Liabilities:
Current liabilities	$	641		$	227	$	414	$	73	$	59	$	55		$	—	$	26	$	18	$	30	$	21	$	1,564
Non-current liabilities	3,093			3,983		2,614		2,015		989		443			—		438		673		185		6		14,439
	3,734			4,210		3,028		2,088		1,048		498			—		464		691		215		27		16,003
Non-controlling interest—in operating subsidiaries and preferred unitholders	602			417		396		3,082		75		891			—		302		644		60		1		6,470
Non-controlling interest—Redeemable Partnership Units held by Brookfield	(50		)	407		332		959		23		28			240		19		35		11		8		2,012
Net investment	$	472		$	1,012	$	826	$	2,377	$	56	$	(525	)	$	596	$	47	$	86	$	27	$	18	$	4,992

2016
US$ MILLIONS	USD		AUD		GBP		BRL		CLP		CAD		EUR		COP		PEN		INR		NZD		Total
Assets:
Current assets	$	849	$	214	$	127	$	42	$	102	$	18	$	—	$	55	$	127	$	52	$	46	$	1,632
Non-current assets	3,744		5,542		3,739		1,895		1,070		677		718		700		1,260		265		33		19,643
	$	4,593	$	5,756	$	3,866	$	1,937	$	1,172	$	695	$	718	$	755	$	1,387	$	317	$	79	$	21,275
Liabilities:
Current liabilities	$	833	$	206	$	262	$	23	$	50	$	35	$	—	$	27	$	27	$	36	$	16	$	1,515
Non-current liabilities	1,636		3,764		2,243		—		941		309		—		369		636		186		32		10,116
	2,469		3,970		2,505		23		991		344		—		396		663		222		48		11,631
Non-controlling interest—in operating subsidiaries and preferred unitholders	919		370		333		189		89		261		—		294		610		58		23		3,146
Non-controlling interest—Redeemable Partnership Units held by Brookfield	344		405		294		493		26		26		206		19		33		11		3		1,860
Net investment	$	861	$	1,011	$	734	$	1,232	$	66	$	64	$	512	$	46	$	81	$	26	$	5	$	4,638

2015
US$ MILLIONS	USD		AUD		GBP		BRL		CLP		CAD		EUR		COP		Total
Assets:
Current assets	$	234	$	380	$	470	$	6	$	126	$	291	$	—	$	46	$	1,553
Non-current assets	2,485		5,816		3,927		1,020		1,052		636		618		629		16,182
	$	2,719	$	6,196	$	4,397	$	1,026	$	1,178	$	927	$	618	$	675	$	17,735
Liabilities:
Current liabilities	$	502	$	103	$	434	$	—	$	30	$	122	$	—	$	20	$	1,210
Non-current liabilities	1,714		3,745		2,312		—		902		334		—		342		9,349
	2,216		3,848		2,746		—		932		456		—		362		10,559
Non-controlling interest—in operating subsidiaries and preferred unitholders	377		269		385		141		121		248		—		256		1,797
Non-controlling interest—Redeemable Partnership Units held by Brookfield	36		587		357		249		35		63		175		16		1,518
Net investment	$	90	$	1,492	$	909	$	636	$	90	$	160	$	443	$	41	$	3,861

The following tables detail Brookfield Infrastructure’s sensitivity to a 10% increase and decrease in the U.S. dollar against the relevant foreign currencies, with all other variables held constant as at reporting date. 10% is the sensitivity rate used when reporting foreign currency risk internally. The sensitivity analysis is performed as follows:

• Outstanding foreign currency denominated monetary items (excluding foreign exchange derivative contracts) are adjusted at period end for a 10% change in foreign currency rates from the rate at which they are translated;

• Foreign currency derivative contracts are measured as the change in fair value of the derivative as a result of a 10% change in the spot currency rate; and

• The impact on net income results from performing a sensitivity of a 10% change in foreign exchange rates applied to the profit or loss contribution from foreign operations (after considering the impact of foreign exchange derivative contracts).

	Impact on Net Income
	2017						2016						2015
US$ MILLIONS	-10%			10%			-10%			10%			-10%		10%
USD/AUD	$	(18	)	$	18		$	(2	)	$	2		$	8	$	(8	)
USD/EUR	(9		)	9			(8		)	8			5		(5		)
USD/GBP	(3		)	3			(6		)	6			5		(5		)
USD/BRL	21			(21		)	14			(14		)	—		—
USD/CLP	1			(1		)	—			—			1		(1		)
USD/CAD	(1		)	1			(1		)	1			1		(1		)
USD/PEN	—			—			—			—			—		—
USD/INR	—			—			—			—			—		—

	Impact on Partnership Capital
	2017					2016					2015
US$ MILLIONS	-10%		10%			-10%		10%			-10%		10%
USD/AUD	$	—	$	—		$	—	$	—		$	24	$	(24	)
USD/EUR	—		—			35		(35		)	18		(18		)
USD/GBP	—		—			—		—			23		(23		)
USD/CLP	8		(8		)	10		(10		)	13		(13		)
USD/COP	7		(7		)	6		(6		)	6		(6		)
USD/BRL	334		(334		)	172		(172		)	89		(89		)
USD/CAD	—		—			—		—			11		(11		)
USD/PEN	12		(12		)	11		(11		)	—		—
USD/INR	4		(4		)	4		(4		)	—		—

(c) Credit Risk Management

Credit risk is the risk of loss due to the failure of a borrower or counterparty to fulfill its contractual obligations.

From a treasury perspective, counterparty credit risk is managed through the establishment of authorized counterparty credit limits which are designed to ensure that Brookfield Infrastructure only deals with credit worthy counterparties and that counterparty concentration is addressed and the risk of loss is mitigated. Credit limits are sufficiently low to restrict Brookfield Infrastructure from having credit exposures concentrated with a single counterparty but rather encourages spreading such risks among several parties. The limits are set at levels that reflect Brookfield Infrastructure’s scale of activity and allow it to manage its treasury business competitively.

Brookfield Infrastructure does not have any significant credit risk exposure to any single counterparty or any group of counterparties having similar characteristics. The credit risk on liquid funds and derivative financial instruments is limited because the counterparties are banks with high credit ratings assigned by international credit rating agencies. Exposure to credit risk is limited to the carrying amount of the assets on the Consolidated Statements of Financial Position.

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CAPITAL MANAGEMENT

12 Months Ended

Dec. 31, 2017

Disclosure of Capital Management [Abstract]

Disclosure of objectives, policies and processes for managing capital [text block]

CAPITAL MANAGEMENT

Our partnership’s approach to capital management is focused on maximizing returns to unitholders and ensuring capital is deployed in a manner consistent with achieving our investment return objectives.

Invested Capital, which tracks the amount of capital that has been contributed to our partnership, is a measure we utilize to assess returns on capital deployed, relative to targeted returns. Investment decisions are based on, amongst other measures and factors, targeted returns on Invested Capital of 12% to 15% annually over the long-term. We measure return on Invested Capital as adjusted funds from operations (“AFFO”), less estimated¹ returns of capital on operations that are not perpetual in life, divided by the weighted average Invested Capital for the period.

We define Invested Capital as partnership capital removing the impact of the following items: non-controlling interest - in operating subsidiaries, retained earnings or deficit, accumulated other comprehensive income and ownership changes.

1. Estimated based on the discounted cash flow models which we utilize in order to value and measure the performance of our operations.

US$ MILLIONS	2017			2016
Partnership Capital	$	13,474		$	9,644
Remove impact of the following items since inception:
Non-controlling interest - in operating subsidiaries	(5,875		)	(2,771		)
Deficit	1,366			697
Accumulated other comprehensive income	(1,257		)	(1,074		)
Ownership changes	(109		)	(109		)
Invested Capital	$	7,599		$	6,387

The following table presents the change in Invested Capital during year ended December 31, 2017:

US$ MILLIONS	2017		2016
Opening balance	$	6,387	$	5,452
Issuance of preferred units	220		186
Issuance of limited partnership units and redeemable partnership units	992		749
Ending balance	$	7,599	$	6,387
Weighted Average Invested Capital	$	6,885	$	5,592

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SUPPLEMENTAL CASH FLOW INFORMATION

12 Months Ended

Dec. 31, 2017

Cash Flow Statement [Abstract]

SUPPLEMENTAL CASH FLOW INFORMATION

SUPPLEMENTAL CASH FLOW INFORMATION

	For the Year Ended December 31,
US$ MILLIONS	2017		2016		2015
Interest paid	$	451	$	366	$	332
Income taxes paid	$	132	$	33	$	22

Amounts paid and received for interest were reflected as operating cash flows in the Consolidated Statements of Cash Flows. Interest paid is net of debt related hedges.

Amounts paid for income taxes were reflected as either operating cash flows or investing cash flows in the Consolidated Statements of Cash Flows depending upon the nature of the underlying transaction.

Details of “Changes in non-cash working capital, net” on the Consolidated Statements of Cash Flows are as follows:

	For the Year Ended December 31,
US$ MILLIONS	2017			2016		2015
Accounts receivable	$	(31	)	$	31	$	27
Prepayments and other	4			3		1
Accounts payable and other	158			11		(110		)
Changes in non-cash working capital, net	$	131		$	45	$	(82	)

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SIGNIFICANT ACCOUNTING POLICIES (Policies)

12 Months Ended

Dec. 31, 2017

Corporate Information And Statement Of IFRS Compliance [Abstract]

Statement of Compliance

Statement of Compliance

These consolidated financial statements have been prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board (“IFRS”).

The consolidated financial statements were authorized for issue by the Board of Directors on March 13, 2018.

Basis of Preparation

Basis of Preparation

The consolidated financial statements are prepared on a going concern basis. Standards and guidelines not yet effective for the current accounting period are described in Note 3(s), Future Changes in Accounting Policies.

Subsidiaries

Subsidiaries

These consolidated financial statements include the accounts of our partnership and subsidiaries over which our partnership has control. Subsidiaries are consolidated from the date of acquisition, being the date on which our partnership obtains control, and continue to be consolidated until the date when control is lost. Our partnership (investor) controls an investee when it is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Together, our partnership and its subsidiaries are referred to as “Brookfield Infrastructure” in these financial statements.

Non-controlling interests may be initially measured either at fair value or at the non-controlling interests’ proportionate share of the fair value of the acquiree’s identifiable net assets. The choice of measurement basis is made on an acquisition by acquisition basis. Subsequent to acquisition, the carrying amount of non-controlling interests is the amount of those interests at initial recognition plus the non-controlling interests’ share of subsequent changes in partnership capital in addition to changes in ownership interests. Total comprehensive income is attributed to non-controlling interests, even if this results in the non-controlling interests having a deficit balance.

Holding LP has issued Redeemable Partnership Units held by Brookfield, which may, at the request of the holder, require the Holding LP to redeem the Redeemable Partnership Units for cash consideration equal to the market price of our partnership’s units. This right is subject to our partnership’s right of first refusal which entitles it, at its sole discretion, to elect to acquire any Redeemable Partnership Unit so presented to Holding LP in exchange for one of our partnership’s units subject to certain customary adjustments.

All intercompany balances, transactions, revenues and expenses are eliminated in full.

Associates and Joint Ventures

Associates and Joint Ventures

Associates and joint ventures are entities over which our partnership has significant influence or joint control. Significant influence is the power to participate in the financial and operating policy decisions of the investee but does not constitute control. Our partnership accounts for investments over which it has significant influence using the equity method, and are recorded as Investments in associates and joint ventures on the Consolidated Statements of Financial Position.

Interests in investments accounted for using the equity method are initially recorded at cost. If the cost of the associate is lower than the proportionate share of the investment’s underlying fair value, our partnership records a gain on the difference between the cost and the underlying fair values of the identifiable net assets of the associate. If the cost of the associate is greater than our partnership’s proportionate share of the underlying fair value, goodwill and other adjustments arising from the purchase price allocation relating to the associate is included in the carrying amount of the investment. Subsequent to initial recognition, the carrying value of our partnership’s interest in an investee is adjusted for our partnership’s share of comprehensive income or loss and distributions from the investee.

Profits or losses resulting from transactions with an associate are recognized in the consolidated financial statements based on the interests of unrelated investors in the associate.

Foreign Currency Translation

Foreign Currency Translation

The U.S dollar is the functional and presentation currency of Brookfield Infrastructure. Each of Brookfield Infrastructure’s subsidiaries, associates and jointly controlled entities determines its own functional currency and items included in the financial statements of each subsidiary and associate are measured using that functional currency.

Assets and liabilities of foreign operations having a functional currency other than the U.S. dollar are translated at the rate of exchange prevailing at the reporting date and revenues and expenses at average rates during the period. Gains or losses on translation are included as a component of other comprehensive income. On disposal of a foreign operation resulting in the loss of control, the component of other comprehensive income due to accumulated foreign currency translation relating to that foreign operation is reclassified to net income. Gains or losses on foreign currency denominated balances and transactions that are designated as hedges of net investments in these operations are reported in the same manner. On partial disposal of a foreign operation in which control is retained, the proportionate share of the component of other comprehensive income or loss relating to that foreign operation is reclassified to non-controlling interests in that foreign operation.

Foreign currency denominated monetary assets and liabilities are translated using the rate of exchange prevailing at the reporting date and non-monetary assets and liabilities measured at fair value are translated at the rate of exchange prevailing at the date when the fair value was determined. Revenues and expenses are measured at average rates during the period. Gains or losses on translation of these items are included in net income. Gains and losses on transactions which hedge these items are also included in net income or loss. Foreign currency denominated non-monetary assets and liabilities, measured at historic cost, are translated at the rate of exchange at the transaction date.

Business Combinations

Business Combinations

Business acquisitions in which control is acquired are accounted for using the acquisition method, other than those between and among entities under common control. The consideration of each acquisition is measured at the aggregate of the fair values at the acquisition date of assets transferred by the acquirer, liabilities incurred or assumed, and equity instruments issued by Brookfield Infrastructure in exchange for control of the acquiree. Acquisition related costs are recognized in the Consolidated Statement of Operating Results as incurred and included in other expenses.

Where applicable, the consideration for the acquisition includes any asset or liability resulting from a contingent consideration arrangement, measured at its acquisition-date fair value. Subsequent changes in fair values are adjusted against the cost of the acquisition where they qualify as measurement period adjustments. All other subsequent changes in the fair value of contingent consideration classified as liabilities will be recognized in the Consolidated Statements of Operating Results, whereas changes in the fair values of contingent consideration classified within partnership capital are not subsequently re-measured.

Where a business combination is achieved in stages, Brookfield Infrastructure’s previously held interests in the acquired entity are remeasured to fair value at the acquisition date, that is, the date Brookfield Infrastructure attains control and the resulting gain or loss, if any, is recognized in the Consolidated Statements of Operating Results. Amounts arising from interests in the acquiree prior to the acquisition date that have previously been recognized in other comprehensive income are reclassified to the Consolidated Statements of Operating Results, where such treatment would be appropriate if that interest were disposed of.

If the initial accounting for a business combination is incomplete by the end of the reporting period in which the combination occurs, Brookfield Infrastructure reports provisional amounts for the items for which the accounting is incomplete. Those provisional amounts are adjusted during the measurement period, or additional assets or liabilities are recognized, to reflect new information obtained about facts and circumstances that existed as of the acquisition date that, if known, would have affected the amounts recognized as of that date.

The measurement period is the period from the date of acquisition to the date Brookfield Infrastructure obtains complete information about facts and circumstances that existed as of the acquisition date. The measurement period is subject to a maximum of one year subsequent to the acquisition date.

If, after reassessment, Brookfield Infrastructure’s interest in the fair value of the acquiree’s identifiable net assets exceeds the sum of the consideration transferred, the amount of any non-controlling interests in the acquiree and the fair value of the acquirer’s previously held equity interest in the acquiree if any, the excess is recognized immediately in profit or loss as a bargain purchase gain.

Contingent liabilities acquired in a business combination are initially measured at fair value at the date of acquisition. At the end of subsequent reporting periods, such contingent liabilities are measured at the higher of the amount that would be recognized in accordance with IAS 37, Provisions, Contingent Liabilities and Contingent Assets (“IAS 37”) and the amount initially recognized less cumulative amortization recognized in accordance with IAS 18, Revenue (“IAS 18”).

Cash and Cash Equivalents

Cash and Cash Equivalents

Cash and cash equivalents include cash on hand and short-term investments with original maturities of three months or less.

Accounts Receivable

Accounts Receivable

Trade receivables are recognized initially at fair value and subsequently measured at amortized cost using the effective interest method, less any allowance for uncollectability.

Property, Plant and Equipment

Property, Plant and Equipment

Brookfield Infrastructure uses the revaluation method of accounting for all classes of property, plant and equipment. Property, plant and equipment is initially measured at cost and subsequently carried at its revalued amount, being the fair value at the date of the revaluation less any subsequent accumulated depreciation and any accumulated impairment losses. Revaluations are made on at least an annual basis, and on a sufficient basis to ensure that the carrying amount does not differ significantly from fair value. Where the carrying amount of an asset is increased as a result of a revaluation, the increase is recognized in other comprehensive income or loss and accumulated in equity within the revaluation surplus reserve, unless the increase reverses a previously recognized impairment recorded through net income, in which case that portion of the increase is recognized in net income. Where the carrying amount of an asset is decreased, the decrease is recognized in other comprehensive income to the extent of any balance existing in revaluation surplus in respect of the asset, with the remainder of the decrease recognized in net income. Revaluation gains are included in other comprehensive income, but are not subsequently recycled into profit or loss.

An item of property, plant and equipment and any significant part initially recognized is derecognized upon disposal or when no future economic benefits are expected from its use or disposal. The gain or loss arising on disposal or retirement of an item of property, plant and equipment is determined as the difference between the sales proceeds and the carrying amount of the asset and is recognized in the Consolidated Statements of Operating Results. However, any balance accumulated in revaluation surplus is subsequently recorded in retained earnings when an asset is derecognized and not transferred to profit or loss.

Depreciation of an asset commences when it is available for use. Property, plant and equipment are depreciated on a straight line or declining-balance basis over the estimated useful lives of each component of the assets as follows:

Buildings	Up to 70 years
Transmission stations, towers and related fixtures	Up to 40 years
Leasehold improvements	Up to 50 years
Plant and equipment	Up to 40 years
Network systems	Up to 60 years
Track	Up to 40 years
District energy systems	Up to 50 years
Gas storage assets	Up to 50 years

Depreciation on property, plant and equipment is calculated on a straight-line or declining-balance basis so as to depreciate the net cost of each asset over its expected useful life to its estimated residual value. Leasehold improvements are depreciated over the period of the lease or estimated useful life, whichever is the shorter, using the straight-line method. The estimated useful lives, residual values and depreciation methods are reviewed at the end of each annual reporting period, with the effect of any changes recognized on a prospective basis.

Investment Property

Investment Property

Brookfield Infrastructure uses the fair value method to account for assets classified as investment property. An asset is determined to be an investment property when it is principally held to earn rental income or for capital appreciation, or both. Investment property is initially measured at cost including transaction costs. Subsequent to initial recognition, investment properties are carried at fair value. Gains or losses arising from changes in fair value are included in profit or loss.

Fair values are primarily determined by valuation of the lease term and freehold reversion. An income capitalization approach is used by applying a yield to the rental income of the capitalization rate is reflective of the characteristics, location and market of each property. Fair value is estimated by management of our partnership with due consideration given to observable market inputs, where available.

Asset Impairment

Asset Impairment

At each reporting date Brookfield Infrastructure assesses whether for assets, other than those measured at fair value with changes in values recorded in profit or loss, there is any indication that such assets are impaired. This assessment includes a review of internal and external factors which includes, but is not limited to, changes in the technological, political, economic or legal environment in which the entity operates in, structural changes in the industry, changes in the level of demand, physical damage and obsolescence due to technological changes. An impairment is recognized if the recoverable amount, determined as the higher of the estimated fair value less costs of disposal or the discounted future cash flows generated from use and eventual disposal from an asset or cash generating unit is less than its carrying value. The projections of future cash flows take into account the relevant operating plans and management’s best estimate of the most probable set of conditions anticipated to prevail. Where an impairment loss subsequently reverses, the carrying amount of the asset or cash generating unit is increased to the lesser of the revised estimate of recoverable amount and the carrying amount that would have been recorded had no impairment loss been recognized previously.

Intangible Assets

Intangible Assets

Intangible assets acquired in a business combination and recognized separately from goodwill are initially recognized at their fair value at the acquisition date. Brookfield Infrastructure’s intangible assets are comprised primarily of conservancy rights, service concession arrangements and customer order backlogs.

Subsequent to initial recognition, intangible assets acquired in a business combination are reported at cost less accumulated amortization unless indefinite-lived and accumulated impairment losses, on the same basis as intangible assets acquired separately.

Public service concessions that provide Brookfield Infrastructure the right to charge users for a service in which the service and fee is regulated by the grantor are accounted for as an intangible asset under IFRIC 12, Service Concession Arrangements.

Concession arrangements were acquired as part of the acquisition of the Australian regulated terminal operation, Brazilian regulated gas transmission, and Chilean, Indian and Peruvian toll roads and were initially recognized at their fair values. The intangible asset at the Australian regulated terminal operation relates to use of a specific coal port terminal for a contractual length of time and is amortized over the life of the contractual arrangement with 83 years remaining on a straight-line basis. The intangible assets at the Brazilian regulated gas transmission operation relate to pipeline concession contracts, amortized on a straight-line basis over the life of the contractual arrangement. The intangible assets at the Chilean, Indian and Peruvian toll roads relate to the right to operate a road and charge users a specified tariff for a contractual length of time and is amortized over the life of the contractual arrangement with an average of 16, 6, and 25 years remaining, respectively.

The conservancy right was acquired as part of the acquisition of the U.K. port operation and was recorded at its fair value. As a right in perpetuity issued by the Statutory Harbour Authority in the U.K., the conservancy right is classified as having an indefinite life and is subject to an annual impairment assessment.

The customer order backlog was acquired as part of the acquisition of the U.K. regulated distribution operation and was initially recorded at its fair value. The customer order backlog represents the present value of future earnings derived from the build out of contracted connections at the acquisition date of the U.K. regulated distribution operation. The customer order backlog is amortized over its estimated useful life of 15 years.

Gains or losses arising from derecognition of an intangible asset are measured as the difference between the net disposal proceeds and the carrying amount of the asset and are recognized in profit or loss when the asset is derecognized.

Goodwill

Goodwill

Goodwill represents the excess of the price paid for the acquisition of an entity over the fair value of the net tangible and intangible assets and liabilities acquired. Goodwill is allocated to the cash generating unit or units to which it relates. Brookfield Infrastructure identifies cash generating units as identifiable groups of assets that are largely independent of the cash inflows from other assets or groups of assets.

Goodwill is evaluated for impairment annually or more often if events or circumstances indicate there may be impairment. Impairment is determined for goodwill by assessing if the carrying value of a cash generating unit, including the allocated goodwill, exceeds its recoverable amount determined as the greater of the estimated fair value less costs of disposal or the value in use. Impairment losses recognized in respect of a cash generating unit are first allocated to the carrying value of goodwill and any excess is allocated to the carrying amount of assets in the cash generating unit. Any goodwill impairment is charged to profit or loss in the period in which the impairment is identified. Impairment losses on goodwill are not subsequently reversed.

On disposal of a subsidiary, the attributable amount of goodwill is included in the determination of the gain or loss on disposal of the operation.

Revenue Recognition

Revenue Recognition

Revenue is recognized to the extent that it is probable that the economic benefits will flow to Brookfield Infrastructure and the revenue and costs incurred or to be incurred can be reliably measured.

Revenue is measured at the fair value of the consideration received or receivable. Amounts disclosed as revenue are net of estimated customer returns, trade allowances, rebates and other similar allowances.

When our partnership receives a transfer of cash or property, plant and equipment from a customer, it assesses whether the constructed or acquired item of property, plant and equipment meets the definition of an asset in accordance with IFRIC 18, Transfer of Assets from Customers (“IFRIC 18”). If the definition of an asset is met, our partnership recognizes the item of property, plant and equipment at its cost and recognizes revenue or deferred revenue, as applicable, for the same amount based on the appropriate revenue recognition policy.

Brookfield Infrastructure recognizes revenue when the specific criteria have also been met for each of Brookfield Infrastructure’s activities as described below. Cash received by Brookfield Infrastructure from customers is recorded as deferred revenue until revenue recognition criteria are met.

Utilities

Revenue from utilities infrastructure is derived from the transmission of energy and natural gas, the distribution of energy and from Brookfield Infrastructure’s Australian regulated terminal operation. Distribution and transmission revenue is recognized when services are rendered based upon usage or volume during that period. Terminal infrastructure charges are charged at set rates per tonne of coal based on each customer’s annual contracted tonnage and is then recognized on a pro-rata basis each month. Brookfield Infrastructure’s Australian regulated terminal operation also recognizes handling charges based on tonnes of coal shipped through the terminal. Brookfield Infrastructure’s regulated distribution operation receives customer contributions which are recorded in deferred revenue and released on a percentage of completion basis in accordance with IFRIC 18 and IAS 11.

Transport

Revenue from transport infrastructure consists primarily of freight, toll road operations and transportation services revenue. Revenue is recognized when services are provided and rendered based primarily on usage or volume throughput during the period.

Energy

Revenue from energy infrastructure consists primarily of energy transmission and storage as well as district energy services. Revenue is recognized when services are provided and rendered based primarily on usage or volume throughput during the period.

Communications Infrastructure

Revenue from communications infrastructure is derived from contracts with media broadcasting and telecom customers to access infrastructure. Customers pay upfront and recurring fees to lease space on towers to host their equipment. Recurring rental revenue is recognized on a straight line basis based on lease agreements. Upfront payments which are separable from the recurring revenue under IFRIC 18 are recognized on a percentage of completion basis on the construction asset they relate to.

Financial Instruments and Hedge Accounting

Financial Instruments and Hedge Accounting

The following summarizes Brookfield Infrastructure’s classification and measurement of financial assets and liabilities:

	Classification	Measurement
Financial assets
Cash and cash equivalents	Loans and receivables	Amortized cost
Accounts receivable and other	Loans and receivables	Amortized cost
Restricted cash and deposits	Loans and receivables	Amortized cost
Marketable securities	Available-for-sale	Fair value
Financial assets
Derivative assets	FVTPL(1)	Fair value
Other financial assets	Loans and receivables/ Available-for-sale	Amortized cost/ Fair value
Financial liabilities
Corporate borrowings	Other liabilities	Amortized cost
Non-recourse borrowings	Other liabilities	Amortized cost (2)
Accounts payable and other	Other liabilities	Amortized cost
Preferred shares	Other liabilities	Amortized cost
Financial liabilities	FVTPL(1)	Fair value

(1) Fair value through profit or loss (“FVTPL”), except for derivatives in certain hedge relationships.

(2) Except for derivatives embedded in the related financial instruments that are classified as FVTPL and measured at fair value.

Our partnership maintains a portfolio of marketable securities comprised of liquid equity and debt securities. The marketable securities are classified as available-for-sale and are subsequently measured at fair value at each reporting date with the change in fair value recorded in other comprehensive income. When a decline in the fair value of an available-for-sale financial asset has been recognized in other comprehensive income and there is objective evidence that the asset is impaired, the cumulative loss that had been recognized in other comprehensive income is reclassified from equity to profit or loss as a reclassification adjustment.

Brookfield Infrastructure selectively utilizes derivative financial instruments primarily to manage financial risks, including interest rate and foreign exchange risks. Derivative financial instruments are recorded at fair value. Hedge accounting is applied when the derivative is designated as a hedge of a specific exposure and there is assurance that it will continue to be highly effective as a hedge based on an expectation of offsetting cash flows or fair value. Hedge accounting is discontinued prospectively when the derivative no longer qualifies as a hedge or the hedging relationship is terminated. Once discontinued, the cumulative change in fair value of a derivative that was previously recorded in other comprehensive income by the application of hedge accounting is recognized in profit or loss over the remaining term of the original hedging relationship as amounts related to the hedged item are recognized in profit or loss. The assets or liabilities relating to unrealized mark-to-market gains and losses on derivative financial instruments are recorded in Financial Assets and Financial Liabilities, respectively.

(i) Items Classified as Hedges

Realized and unrealized gains and losses on foreign exchange contracts, designated as hedges of currency risks relating to a net investment in a subsidiary with a functional currency other than the U.S. dollar are included in equity and are included in net income in the period in which the subsidiary is disposed of or to the extent partially disposed and control is not retained. Derivative financial instruments that are designated as hedges to offset corresponding changes in the fair value of assets and liabilities and cash flows are measured at estimated fair value with changes in fair value recorded in profit or loss or as a component of equity as applicable.

Unrealized gains and losses on interest rate contracts designated as hedges of future variable interest payments are included in equity as a cash flow hedge when the interest rate risk relates to an anticipated variable interest payment. The periodic exchanges of payments on interest rate swap contracts designated as hedges of debt are recorded on an accrual basis as an adjustment to interest expense. The periodic exchanges of payments on interest rate contracts designated as hedges of future interest payments are amortized into profit or loss over the term of the corresponding interest payments.

(ii) Items Not Classified as Hedges

Derivative financial instruments that are not designated as hedges are carried at estimated fair value, and realized and unrealized gains and losses are recognized in net income in the period the gains and losses occur.

Other financial assets are classified as loans and receivables or available-for-sale securities based on their nature and use within our partnership’s business and are recorded initially at fair value. Other financial assets classified as available-for-sale are subsequently measured at fair value at each reporting date with the change in fair value recorded in other comprehensive income. Other financial assets classified as loans and receivables are subsequently measured at amortized cost using the effective interest method, less any impairment. Assets classified as loans and receivables are impaired when there exists objective evidence that the financial asset is impaired.

Income Taxes

Income Taxes

Income tax expense represents the sum of the tax accrued in the period and deferred income tax.

(i) Current income tax

Current income tax assets and liabilities are measured at the amount expected to be paid to tax authorities, net of recoveries based on the tax rates and laws enacted or substantively enacted at the reporting date. Current income tax relating to items recognized directly in partnership capital are also recognized directly in partnership capital and other comprehensive income.

(ii) Deferred income tax

Deferred income tax liabilities are provided for using the liability method on temporary differences between the tax bases used in the computation of taxable income and carrying amounts of assets and liabilities in the consolidated financial statements. Deferred income tax assets are recognized for all deductible temporary differences, carry forward of unused tax credits and unused tax losses, to the extent that it is probable that deductions, tax credits and tax losses can be utilized. Such deferred income tax assets and liabilities are not recognized if the temporary difference arises from goodwill or from the initial recognition of other assets and liabilities in a transaction that affects neither the taxable income nor the accounting income, other than in a business combination. The carrying amount of deferred income tax assets are reviewed at each reporting date and reduced to the extent it is no longer probable that the income tax asset will be recovered.

Deferred income tax liabilities are recognized for taxable temporary differences associated with investments in subsidiaries and associates, and interests in joint ventures, except where Brookfield Infrastructure is able to control the reversal of the temporary difference and it is probable that the temporary differences will not reverse in the foreseeable future. Deferred income tax assets arising from deductible temporary differences associated with such investments and interests are only recognized to the extent that it is probable that there will be sufficient taxable income against which to utilize the benefits of the temporary differences and they are expected to reverse in the foreseeable future.

Deferred income tax assets and liabilities are measured at the tax rates that are expected to apply in the period in which the liability is settled or the asset realized, based on tax rates and tax laws that have been enacted or substantively enacted by the end of the reporting period. The measurement of deferred income tax liabilities and assets reflect the tax consequences that would follow from the manner in which Brookfield Infrastructure expects, at the end of the reporting period, to recover or settle the carrying amount of its assets and liabilities.

Deferred income tax assets and liabilities are offset when there is a legally enforceable right to set off current tax assets against current tax liabilities and when they relate to income taxes levied by the same taxation authority within a single taxable entity or Brookfield Infrastructure intends to settle its current tax assets and liabilities on a net basis in the case where there exist different taxable entities in the same taxation authority and when there is a legally enforceable right to set off current tax assets against current tax liabilities.

Assets Held for Sale

Assets Held for Sale

Non-current assets and disposal groups are classified as held for sale if their carrying amount will be recovered principally through a sale transaction rather than through continuing use. This condition is regarded as met only when the sale is highly probable and the non-current asset or disposal group is available for immediate sale in its present condition. Management must be committed to the sale, which should be expected to qualify for recognition as a completed sale within one year from the date of classification subject to limited exceptions.

When Brookfield Infrastructure is committed to a sale plan involving loss of control of a subsidiary, all of the assets and liabilities of that subsidiary are classified as held for sale when the criteria described above are met, regardless of whether Brookfield Infrastructure will retain a non-controlling interest in its former subsidiary after the sale.

Non-current assets and disposal groups classified as held for sale are measured at the lower of their previous carrying amount and fair value less costs to sell.

Non-current assets classified as held for sale and the assets of a disposal group are presented separately from other assets in the Consolidated Statements of Financial Position and are classified as current. The liabilities of a disposal group classified as held for sale are presented separately from other liabilities in the Consolidated Statements of Financial Position.

Once classified as held for sale, property, plant and equipment and intangible assets are not depreciated or amortized, respectively.

Provisions

Provisions

Provisions are recognized when Brookfield Infrastructure has a present obligation, either legal or constructive, as a result of a past event, it is probable that Brookfield Infrastructure will be required to settle the obligation, and a reliable estimate can be made of the amount of the obligation.

The amount recognized as a provision is the best estimate of the consideration required to settle the present obligation at the end of the reporting period, taking into account the risks and uncertainties surrounding the obligation. Where a provision is measured using the cash flows estimated to settle the obligation, its carrying amount is the present value of those cash flows.

When some or all of the economic benefits required to settle a provision are expected to be recovered from a third party, the receivable is recognized as an asset if it is virtually certain that reimbursement will be received and the amount of the receivable can be measured reliably.

Critical Accounting Judgments and Key Sources of Estimation Uncertainty

Critical Accounting Judgments and Key Sources of Estimation Uncertainty

The preparation of financial statements requires management to make critical judgments, estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses that are not readily apparent from other sources, during the reporting period. These estimates and associated assumptions are based on historical experience and other factors that are considered to be relevant. Actual results may differ from these estimates.

The estimates and underlying assumptions are reviewed on an ongoing basis. Revisions to accounting estimates are recognized in the period in which the estimate is revised if the revision affects only that period, or in the period of the revision and future periods if the revision affects both current and future periods.

Critical judgments made by management and utilized in the normal course of preparing Brookfield Infrastructure’s consolidated financial statements are outlined below.

(i) Common control transactions

IFRS 3 (2008) Business Combinations does not include specific measurement guidance for transfers of businesses or subsidiaries between entities under common control. Accordingly, Brookfield Infrastructure has developed a policy to account for such transactions taking into consideration other guidance in the IFRS framework and pronouncements of other standard-setting bodies. Brookfield Infrastructure’s policy is to record assets and liabilities recognized as a result of transactions between entities under common control at the carrying value on the transferor’s financial statements, and to have the Consolidated Statements of Financial Position, Consolidated Statements of Operating Results, Consolidated Statements of Comprehensive Income and Statements of Cash Flows reflect the results of combining entities for all periods presented for which the entities were under the transferor’s common control, irrespective of when the combination takes place.

(ii) Financial instruments

Brookfield Infrastructure’s accounting policies relating to derivative financial instruments are described in Note 3(m), Financial Instruments and Hedge Accounting. The critical judgments inherent in these policies relate to applying the criteria to the assessment of the effectiveness of hedging relationships. Estimates and assumptions used in determining the fair value of financial instruments are equity and commodity prices; future interest rates; the credit worthiness of the company relative to its counterparties; the credit risk of our partnership and counterparty; estimated future cash flows; and discount rates.

(iii) Revaluation of property, plant and equipment

Property, plant and equipment is revalued on a regular basis. The critical estimates and assumptions underlying the valuation of property, plant and equipment are set out in Note 12, Property, Plant and Equipment.

(iv) Fair values in business combinations

Brookfield Infrastructure accounts for business combinations using the acquisition method of accounting. This method requires the application of fair values for both the consideration given and the assets and liabilities acquired. The calculation of fair values is often predicated on estimates and judgments including future cash flows discounted at an appropriate rate to reflect the risk inherent in the acquired assets and liabilities (refer to Note 5, Acquisition of Business for details of business combinations). The determination of the fair values may remain provisional for up to 12 months from the date of acquisition due to the time required to obtain independent valuations of individual assets and to complete assessments of provisions. When the accounting for a business combination has not been completed as at the reporting date, this is disclosed in the financial statements, including observations on the estimates and judgments made as of the reporting date.

(v) Assets held for sale

Brookfield Infrastructure applies judgment to determine whether an asset or disposal group is available for immediate sale in its present condition and that its sale is highly probable and therefore should be classified as held for sale at the balance sheet date. Conditions that support a highly probable sale include the following: an appropriate level of management is committed to a plan to sell the asset or disposal group, an active programme to locate a buyer is initiated, the asset is being actively marketed for sale at a price reasonable in relation to its fair value, the sale is highly probably within 12 months of classification as held for sale, and actions required to complete the plan indicate that it is unlikely that plan will be significantly changed or withdrawn.

(vi) Impairment of goodwill, intangibles with indefinite lives and investment in associates and joint ventures

The impairment assessment of goodwill and intangible assets with indefinite lives requires estimation of the value-in-use or fair value less costs of disposal of the cash-generating units to which goodwill or the intangible asset has been allocated. Brookfield Infrastructure uses the following critical assumptions and estimates: the circumstances that gave rise to the goodwill, timing and amount of future cash flows expected from the cash-generating unit; discount rates; terminal capitalization rates; terminal valuation dates and useful lives.

The impairment assessment of investments in associates and joint ventures requires estimation of the recoverable amount of the asset.

Other estimates utilized in the preparation of our partnership’s financial statements are: depreciation and amortization rates and useful lives; recoverable amount of goodwill and intangible assets; ability to utilize tax losses and other tax measurements.

Other critical judgments utilized in the preparation of our partnership’s financial statements include the methodologies for calculating amortization, determination of operating segments and determination of control.

Recently adopted accounting standard amendments

Recently adopted accounting standard amendments

Brookfield Infrastructure applied, for the first time, certain amendments to Standards applicable to Brookfield Infrastructure that became effective January 1, 2017. The impact of adopting these amendments on our partnership’s accounting policies and disclosures are as follows:

IAS 7 Statement of Cash Flows (“IAS 7”)

In January 2016, the IASB issued amendments to IAS 7, effective for annual periods beginning on or after January 1, 2017. The amendment requires that the following changes in liabilities arising from financing activities are disclosed (to the extent necessary): (i) changes from financing cash flows; (ii) changes arising from obtaining or losing control of subsidiaries or other businesses; (iii) the effect of changes in foreign exchange rates; (iv) changes in fair values; and (v) other changes. Amendments to IAS 7 were applied prospectively and resulted in no material impact to Brookfield Infrastructure’s consolidated financial statements.

Future Changes in Accounting Policies

Future Changes in Accounting Policies

Standards issued, but not yet adopted

IFRS 15 Revenue from Contracts with Customers—(“IFRS 15”)

IFRS 15, Revenue from Contracts with Customers specifies how and when revenue should be recognized as well as requiring more informative and relevant disclosures. This standard also requires additional disclosures about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts. IFRS 15 supersedes IAS 18, Revenue, IAS 11, Construction Contracts and a number of revenue-related interpretations. IFRS 15 applies to nearly all contracts with customers: the main exceptions are leases, financial instruments and insurance contracts. IFRS 15 must be applied for periods beginning on or after January 1, 2018. An entity may adopt the standard on a fully retrospective basis or on a modified retrospective basis.

Our partnership has a global team in place to evaluate the financial statement and any corollary impact of adopting IFRS 15, has participated in strategic planning sessions with Brookfield and has developed an adoption plan. Management has also assessed major revenue streams, and has substantially completed accumulating, identifying and inventorying detailed information on major contracts that may be impacted by the changes at the transition date. The key areas of focus within the context of the standard are primarily in relation to the identification of performance obligation and the evaluation of the appropriate period of recognition of revenue for each of these performance obligations.

Our partnership has finalized the documented analysis and assessed potential impact to IT systems and internal controls. We will adopt the new revenue guidance effective January 1, 2018, using the modified retrospective approach, by recognizing the cumulative effect of initially applying the new standard as an adjustment to opening retained earnings as if the standard had always been in effect and whereby comparative periods will not be restated. No material adjustments required upon adoption have been noted to date, however further technical analysis and quantitative assessments are required to conclude on the overall impact.

IFRS 9 Financial Instruments—(“IFRS 9”)

In July 2014, the IASB issued the final publication of IFRS 9, superseding IAS 39, Financial Instruments. This standard establishes principles for the financial reporting of financial assets and financial liabilities that will present relevant and useful information to users of financial statements for their assessment of the amounts, timing and uncertainty of an entity’s future cash flows. This new standard also includes a new general hedge accounting standard which will align hedge accounting more closely with an entity’s risk management activities. It does not fully change the types of hedging relationships or the requirement to measure and recognize ineffectiveness, however, it will allow more hedging strategies that are used for risk management to qualify for hedge accounting and introduce more judgment to assess the effectiveness of a hedging relationship. The standard has a mandatory effective date for annual periods beginning on or after January 1, 2018.

Our partnership has a global team in place to evaluate the financial statements and any corollary impact of IFRS 9 on its consolidated financial statements and business processes. To date, management has participated in a number of strategic planning and analysis sessions with its subsidiaries and associates in order to evaluate the impact of IFRS 9 with a primary focus on the appropriateness of financial asset classification and the consideration of the financial asset impairment requirements under this standard. The evaluation of changes resulting from IFRS 9 relating to hedge accounting have been substantially completed and it has been determined that certain hedge accounting relationships relating to aggregated foreign currency exposures will qualify for hedge accounting under this new standard. Consequently, the partnership has completed the hedge documentation for these relationships in order to apply hedge accounting to these relationships prospectively commencing on January 1, 2018. In addition, our partnership has elected certain gas storage contracts to be measured at fair value through profit or loss. Next steps involve the finalization of documented analyses and drafting pro-forma disclosures that will be required upon initial adoption of this standard and thereafter. We are progressing as planned toward the implementation of IFRS 9.

Our partnership has decided to adopt IFRS 9 retrospectively with no restatement of comparatives. A cumulative catch-up adjustment will be recorded through equity upon initial adoption. No material adjustments required upon adoption have been noted to date, however further technical analysis and quantitative assessments are required to conclude on the overall impact.

IFRS 16 Leases—(“IFRS 16”)

The IASB has published a new standard, IFRS 16. The new standard brings most leases on-balance sheet for lessees under a single model, eliminating the distinction between operating and finance leases. Lessor accounting however remains largely unchanged and the distinction between operating and finance leases is retained. IFRS 16 supersedes IAS 17, Leases and related interpretations and is effective for periods beginning on or after January 1, 2019, with earlier adoption permitted if IFRS 15 has also been applied. Brookfield Infrastructure is currently evaluating the impact of IFRS 16 on its consolidated financial statements.

Amendments and Interpretations, not yet adopted

IFRIC 22 Foreign Currency Transactions and Advance Considerations—(“IFRIC 22”)

In December 2016, the IASB issued IFRIC 22, effective for annual periods beginning on or after January 1, 2018. The interpretation clarifies that the date of the transaction for the purpose of determining the exchange rate to use on initial recognition of the related asset, expense or income (or part of it) is the date on which an entity initially recognizes the non-monetary asset or non-monetary liability arising from the payment or receipt of advance consideration. The Interpretation may be applied either retrospectively or prospectively. Adoption will occur on a prospective basis and it is not anticipated that the impact will be material.

IFRIC 23 Uncertainty over Income Tax Treatments—(“IFRIC 23”)

In June 2017, the IASB published IFRIC 23, effective for annual periods beginning on or after January 1, 2019. The interpretation requires an entity to assess whether it is probable that a tax authority will accept an uncertain tax treatment used, or proposed to be used, by an entity in its income tax filings and to exercise judgment in determining whether each tax treatment should be considered independently or whether some tax treatments should be considered together. The decision should be based on which approach provides better predictions of the resolution of the uncertainty. An entity also has to consider whether it is probable that the relevant authority will accept each tax treatment, or group of tax treatments, assuming that the taxation authority with the right to examine any amounts reported to it will examine those amounts and will have full knowledge of all relevant information when doing so. The interpretation may be applied on either a fully retrospective basis or a modified retrospective basis without restatement of comparative information. Brookfield Infrastructure is currently evaluating the impact of IFRIC 23 on its consolidated financial statements.

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SUBSIDIARIES (Tables)

12 Months Ended

Dec. 31, 2017

Interests In Other Entities [Abstract]

Disclosure of interests in subsidiaries

The following provides information about our partnership’s wholly-owned subsidiaries as of December 31, 2017 and 2016:

			Ownership interest (%)
		Country of incorporation
Defined Name	Name of entity		2017	2016
Transport
Australian rail operation	Arc Infrastructure Holdings No. 1 Pty Ltd	Australia	100	100
Energy
Australian energy distribution operation	Tas Gas Networks Pty Ltd	Australia	100	100

The following table presents details of non-wholly owned subsidiaries of our partnership:

			Ownership Interest (%)		Voting interest (%)
		Country of incorporation
Defined Name	Name of entity		2017	2016	2017	2016
Utilities
U.K. regulated distribution operation	BUUK Infrastructure Holdings Limited	U.K.	80	80	80	80
Australian regulated terminal operation	DBCT Management Pty Ltd(1)	Australia	71	71	100	100
Colombian regulated distribution operation	Empresa de Energia de Boyaca S.A.(1)	Colombia	17	17	100	100
Brazilian regulated gas transmission operation	Nova Transportadora do Sudeste S.A. (1),(2)	Brazil	28	—	90	—
Transport
U.K. ports operation	Brookfield Port Acquisitions (UK) Limited(1)	U.K.	59	59	100	100
Australian ports operation	Linx Cargo Care Group Pty Ltd(1),(3)	Australia	27	27	67	67
Chilean toll roads	Sociedad Concesionaria Vespucio Norte Express S.A.(1)	Chile	51	51	89	89
Indian toll roads	BIF India Holdings Pte Ltd(1),(4)	Singapore	40	40	93	93
Peruvian toll roads	Rutas de Lima S.A.C(1),(5)	Peru	17	17	57	57
Energy
North American gas storage operation(6)	Warwick Gas Storage L.P.(1)	Canada	25	25	100	100
Canadian district energy operation	Enwave Energy Corporation(1)	Canada	25	25	100	100
U.S. district energy operation	Enwave USA(1)	U.S.	40	40	100	100
North American gas storage operation(6)	Lodi Gas Storage(1)	U.S.	40	40	100	100
North American gas storage operation(6)	Rockpoint Gas Storage Partners  L.P.(1),(7)	U.S.	40	40	100	100
Corporate & Other
Holding LP	Brookfield Infrastructure L.P.	Bermuda	70	70	100	100

(1) For the above noted subsidiaries, our partnership has entered into voting arrangements to provide our partnership with the ability to direct the relevant activities of the investee. Our partnership controls these investees given that our partnership is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Our partnership exercises judgment to determine the level of variability that will achieve control over an investee, particularly in circumstances where our partnership’s voting interest differs from its ownership interest in an investee. The following were considered to determine whether our partnership controls these investees: the degree of power (if any) held by other investors, the degree of exposure to variability of each investor, the determination of whether any general partner removal rights are substantive and the purpose and design of the investee.

(2) In April 2017, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund (the “consortium”), acquired an effective 28% interest in Nova Transportadora do Sudeste S.A. (“NTS”), a Brazilian regulated gas transmission business, for total consideration of $1.6 billion.

(3) In August 2016, Brookfield Infrastructure expanded its ports business to Australia as it acquired a 27% interest in Linx Cargo Care Group Pty Ltd through a Brookfield-sponsored infrastructure fund, along with institutional partners (the “Brookfield Consortium”) for total consideration of $145 million.

(4) In March 2016, Brookfield Infrastructure acquired a 40% interest in a toll road business in India from Gammon Infrastructure Projects Limited for consideration of $42 million through a Brookfield-sponsored infrastructure fund.

(5) In June 2016, Brookfield Infrastructure acquired a 17% interest in Rutas de Lima S.A.C. for total consideration of $127 million through a Brookfield-sponsored infrastructure fund.

(6) North American gas storage operations include Warwick Gas Storage L.P., Lodi Gas Storage and Rockpoint Gas Storage Partners L.P.

(7) In July 2016, Brookfield Infrastructure acquired a40%interest in Rockpoint Gas Storage Partners L.P. for consideration of$227 millionthrough a Brookfield-sponsored infrastructure fund.

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Financial Position:

	As of December 31, 2017
US$ MILLIONS	Current Assets		Non-Current Assets		Current Liabilities		Non-Current Liabilities		Non-Controlling Interest in Operating Subsidiaries		Partnership Capital(1)
Utilities
U.K. regulated distribution	$	107	$	3,550	$	281	$	2,261	$	217	$	898
Australian regulated terminal	38		2,229		34		2,035		62		136
Colombian regulated distribution	68		764		26		438		302		66
Brazilian regulated gas transmission operation	322		5,990		73		2,015		3,081		1,143
Transport
U.K. port operation	44		880		133		353		179		259
Australian port operation	163		628		101		218		346		126
Chilean toll roads	84		1,116		59		989		75		77
Peruvian toll roads	101		1,356		18		674		644		121
Indian toll roads	58		256		30		185		60		39
Energy
North American gas storage operation	206		1,259		244		409		502		310
Canadian district energy operation	75		699		55		394		243		82
U.S. district energy operation	37		799		19		668		78		71
Corporate & Other
Holding LP and other	127		244		392		2,060		84		(2,165		)
Total	$	1,430	$	19,770	$	1,465	$	12,699	$	5,873	$	1,163

(1) Attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

	As of December 31, 2016
US$ MILLIONS	Current Assets		Non-Current Assets		Current Liabilities			Non-Current Liabilities		Non-Controlling Interest in Operating Subsidiaries		Partnership Capital(1)
Utilities
U.K. regulated distribution	$	65	$	2,985	$	154		$	1,919	$	183	$	794
Australian regulated terminal	27		2,162		(9		)	1,926		70		202
Colombian regulated distribution	55		701		27			369		294		66
Transport
U.K. port operation	42		754		108			324		150		214
Australian port operation	142		587		94			205		315		115
Chilean toll roads	102		1,069		50			941		89		91
Brazilian toll roads	42		466		27			—		189		292
Peruvian toll roads	127		1,261		27			635		610		116
Indian toll roads	52		264		36			186		58		36
Energy
North American gas storage	199		1,141		136			478		452		274
Canadian district energy operation	15		570		13			290		209		73
U.S. district energy operation	43		697		62			537		73		68
Corporate & Other
Holding LP and other	631		377		677			810		79		(558		)
Total	$	1,542	$	13,034	$	1,402		$	8,620	$	2,771	$	1,783

(1) Attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Operating Results:

	Year ended December 31, 2017
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income (loss)			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	385	$	21		$	29		$	114		$	118
Australian regulated terminal operation	301		15			3			35			7
Colombian regulated distribution operation	161		12			38			2			7
Brazilian regulated gas transmission operation	938		349			(160		)	146			(72		)
Transport
U.K. port operation	180		8			21			22			29
Australian port operation	501		(7		)	28			(3		)	9
Chilean toll roads	154		—			7			—			8
Peruvian toll roads	103		12			22			2			5
Indian toll roads	57		(2		)	4			(1		)	3
Energy
North American gas storage operation	149		30			74			18			47
Canadian district energy operation	95		(2		)	39			—			13
U.S. district energy operation	131		10			40			7			26
Corporate & Other
Holding LP and other	22		(3		)	1			(349		)	(410		)
Total	$	3,177	$	443		$	146		$	(7	)	$	(210	)

	Year ended December 31, 2016
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income (loss)			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	347	$	12		$	(14	)	$	79		$	(55	)
Australian regulated terminal operation	299		15			(5		)	46			(12		)
Colombian regulated distribution operation	150		10			45			2			10
Transport
U.K. port operation	178		11			(37		)	20			(52		)
Australian port operation	182		(18		)	(24		)	(7		)	(8		)
Chilean toll roads	127		(9		)	7			(10		)	8
Brazilian toll roads	—		6			38			5			25
Peruvian toll roads	97		(8		)	(7		)	(2		)	(1		)
Indian toll roads	39		(3		)	1			(3		)	—
Energy
North American gas storage operation	100		1			—			1			—
Canadian district energy operation	79		(1		)	31			1			11
U.S. district energy operation	111		(6		)	31			—			20
Corporate & Other
Holding LP and other	15		31			1			31			180
Total	$	1,724	$	41		$	67		$	163		$	126

	Year ended December 31, 2015
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	339	$	21		$	25		$	122		$	101
Australian regulated terminal operation	330		15			(4		)	68			(9		)
Colombian regulated distribution operation	152		13			(26		)	16			(9		)
Transport
U.K. port operation	220		7			13			22			18
Chilean toll roads	113		(7		)	(20		)	(15		)	(21		)
Energy
North American gas storage operation	20		(8		)	5			(12		)	1
Canadian district energy operation	80		—			6			—			2
U.S. district energy operation	114		(6		)	8			(3		)	5
Corporate & Other
Holding LP and other	21		55			(90		)	5			(32		)
Total	$	1,389	$	90		$	(83	)	$	203		$	56

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Cash Flows:

	Cash Flow Activities
	Year ended December 31, 2017									Year ended December 31, 2016
US$ MILLIONS	Operating			Investing			Financing			Operating			Investing			Financing
Utilities
U.K. regulated distribution operation	$	220		$	(343	)	$	129		$	244		$	(487	)	$	245
Australian regulated terminal operation	96			(9		)	(87		)	128			(22		)	(106		)
Colombian regulated distribution operation	7			(22		)	26			17			(18		)	—
Brazilian regulated gas transmission operation	819			83			(839		)	—			—			—
Transport
U.K. port operation	46			(40		)	(10		)	33			(24		)	(14		)
Australian port operation	37			(39		)	12			7			(99		)	154
Chilean toll roads	56			(5		)	(88		)	63			(1		)	(99		)
Brazilian toll roads	—			—			—			2			(70		)	70
Peruvian toll roads	46			(67		)	—			29			25			1
Indian toll roads	30			(7		)	(22		)	(7		)	28			(10		)
Energy
North American gas storage operation	55			(9		)	(76		)	(12		)	6			46
Canadian district energy operation	26			(82		)	102			27			(18		)	(13		)
U.S. district energy operation	24			8			(28		)	26			(33		)	9
Corporate & Other
Holding LP and other	(98		)	(5,089		)	4,721			124			(282		)	618
Total	$	1,364		$	(5,621	)	$	3,840		$	681		$	(995	)	$	901

	Cash Flow Activities
	Year ended December 31, 2015
US$ MILLIONS	Operating			Investing			Financing
Utilities
U.K. regulated distribution operation	$	164		$	(242	)	$	92
Australian regulated terminal operation	103			(37		)	(67		)
New England electricity transmission operation	2			—			(2		)
Colombian regulated distribution operation	16			(6		)	(7		)
Transport
U.K. port operation	19			(66		)	61
Australian port operation	—			—			—
Chilean toll roads	70			—			(38		)
Energy
North American gas storage operation	(3		)	(1		)	1
Canadian district energy operation	22			(16		)	(23		)
U.S. district energy operation	21			(13		)	(7		)
Corporate & Other
Holding LP and other	92			(650		)	554
Total	$	506		$	(1,031	)	$	564

XML

SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2017

Corporate Information And Statement Of IFRS Compliance [Abstract]

Disclosure of estimated useful lives of property, plant and equipment

Depreciation of an asset commences when it is available for use. Property, plant and equipment are depreciated on a straight line or declining-balance basis over the estimated useful lives of each component of the assets as follows:

Buildings	Up to 70 years
Transmission stations, towers and related fixtures	Up to 40 years
Leasehold improvements	Up to 50 years
Plant and equipment	Up to 40 years
Network systems	Up to 60 years
Track	Up to 40 years
District energy systems	Up to 50 years
Gas storage assets	Up to 50 years

The following table summarizes the carrying amount of property, plant and equipment that would have been recognized had assets been carried under the cost model.

US$ MILLIONS	Dec. 31, 2017		Dec. 31, 2016
Utilities	$	2,961	$	2,512
Transport	1,970		1,845
Energy	2,246		2,122

The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s property, plant and equipment assets, categorized by segment.

	Dec. 31, 2017				Dec. 31, 2016
Segment	Valuation Technique	Discount Rate	Terminal Value Multiple	Investment Horizon	Valuation Technique	Discount Rate	Terminal Value Multiple	Investment Horizon
Utilities	Discounted cash flow model	7% to 12%	7x to 21x	10 to 20 yrs	Discounted cash flow model	7% to 12%	7x to 18x	10 to 20 yrs
Transport	Discounted cash flow model	10% to 15%	9x to 14x	10 to 20 yrs	Discounted cash flow model	10% to 17%	8x to 14x	10 to 20 yrs
Energy	Discounted cash flow model	12% to 15%	8x to 13x	10 yrs	Discounted cash flow model	9% to 14%	10x to 12x	10 yrs

US$ MILLIONS	Utility Assets			Transport Assets			Energy Assets			Total Assets
Gross Carrying Amount:
Balance at January 1, 2016	$	2,945		$	2,150		$	1,457		$	6,552
Additions, net of disposals	399			76			89			564
Non-cash (disposals) additions	(31		)	3			—			(28		)
Acquisitions through business combinations(1)	—			242			825			1,067
Net foreign currency exchange differences	(418		)	(109		)	9			(518		)
Balance at December 31, 2016	$	2,895		$	2,362		$	2,380		$	7,637
Additions, net of disposals	349			104			95			548
Non-cash disposals	—			—			(14		)	(14		)
Acquisitions through business combinations(1)	—			—			100			100
Net foreign currency exchange differences	227			191			68			486
Balance at December 31, 2017	$	3,471		$	2,657		$	2,629		$	8,757
Accumulated depreciation:
Balance at January 1, 2016	$	(291	)	$	(418	)	$	(159	)	$	(868	)
Depreciation expense	(128		)	(127		)	(99		)	(354		)
Non-cash disposals	—			4			—			4
Net foreign currency exchange differences	36			24			—			60
Balance at December 31, 2016	$	(383	)	$	(517	)	$	(258	)	$	(1,158	)
Depreciation expense	(118		)	(147		)	(117		)	(382		)
Disposals	19			21			—			40
Non-cash disposals	—			—			5			5
Net foreign currency exchange differences	(28		)	(44		)	(13		)	(85		)
Balance at December 31, 2017	$	(510	)	$	(687	)	$	(383	)	$	(1,580	)
Accumulated fair value adjustments:
Balance at January 1, 2016	$	945		$	777		$	226		$	1,948
Fair value adjustments	185			25			125			335
Net foreign currency exchange differences	(87		)	(20		)	1			(106		)
Balance at December 31, 2016	$	1,043		$	782		$	352		$	2,177
Fair value adjustments	137			24			257			418
Net foreign currency exchange differences	78			67			20			165
Balance at December 31, 2017	$	1,258		$	873		$	629		$	2,760
Net book value:
December 31, 2017	$	4,219		$	2,843		$	2,875		$	9,937
December 31, 2016	$	3,555		$	2,627		$	2,474		$	8,656

(1) See Note 5, Acquisition of Business for additional information.

Disclosure of classification and measurement of financial assets and liabilities

The following summarizes Brookfield Infrastructure’s classification and measurement of financial assets and liabilities:

	Classification	Measurement
Financial assets
Cash and cash equivalents	Loans and receivables	Amortized cost
Accounts receivable and other	Loans and receivables	Amortized cost
Restricted cash and deposits	Loans and receivables	Amortized cost
Marketable securities	Available-for-sale	Fair value
Financial assets
Derivative assets	FVTPL(1)	Fair value
Other financial assets	Loans and receivables/ Available-for-sale	Amortized cost/ Fair value
Financial liabilities
Corporate borrowings	Other liabilities	Amortized cost
Non-recourse borrowings	Other liabilities	Amortized cost (2)
Accounts payable and other	Other liabilities	Amortized cost
Preferred shares	Other liabilities	Amortized cost
Financial liabilities	FVTPL(1)	Fair value

(1) Fair value through profit or loss (“FVTPL”), except for derivatives in certain hedge relationships.

(2) Except for derivatives embedded in the related financial instruments that are classified as FVTPL and measured at fair value.

XML

SEGMENT INFORMATION (Tables)

12 Months Ended

Dec. 31, 2017

Operating Segments [Abstract]

Summary of financial information by segment

The following is an analysis of Brookfield Infrastructure’s assets by reportable operating segment for the years under review:

	Total Attributable to Brookfield Infrastructure
														Contribution from investments in associates			Attributable to non- controlling interest		Working capital adjustment and other		As per IFRS financials on F-5(1)
AS AT DECEMBER 31, 2017 US$ MILLIONS	Utilities		Transport		Energy		Comm. Infrastructure		Corporate			Brookfield Infrastructure
Total assets	$	6,542	$	6,990	$	3,134	$	1,049	$	(1,083	)	$	16,632	$	(3,134	)	$	11,668	$	4,311	$	29,477

	Total Attributable to Brookfield Infrastructure
														Contribution from investments in associates			Attributable to non- controlling interest		Working capital adjustment and other		As per IFRS financials on F-5(1)
AS AT DECEMBER 31, 2016 US$ MILLIONS	Utilities		Transport		Energy		Comm. Infrastructure		Corporate			Brookfield Infrastructure
Total assets	$	4,605	$	6,160	$	3,032	$	933	$	(510	)	$	14,220	$	(2,996	)	$	6,496	$	3,555	$	21,275

(1) The above table provides each segment’s assets in the format that management organizes its segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account Brookfield Infrastructure’s ownership in operations using consolidation and the equity method whereby our partnership either controls or exercises significant influence over the investment respectively. The above table reconciles Brookfield Infrastructure’s proportionate assets to total assets presented on our partnership’s Consolidated Statements of Financial Position by removing net liabilities contained within investments in associates and joint ventures and reflecting the assets attributable to non-controlling interests, and adjusting for working capital assets which are netted against working capital liabilities.

FOR THE YEAR ENDED DECEMBER 31, 2017 US$ MILLIONS	Total attributable to Brookfield Infrastructure
																			Contribution from investments in associates			Attributable to non- controlling interest			As per IFRS financials on F-6(1)
	Utilities			Transport			Energy			Comm. Infrastructure			Corporate			Total
Revenues	$	988		$	1,589		$	559		$	165		$	—		$	3,301		$	(1,624	)	$	1,858		$	3,535
Costs attributed to revenues	(250		)	(895		)	(278		)	(75		)	—			(1,498		)	861			(872		)	(1,509		)
General and administrative costs	—			—			—			—			(239		)	(239		)	—			—			(239		)
Adjusted EBITDA	738			694			281			90			(239		)	1,564			(763		)	986
Other (expense) income	(14		)	(4		)	15			(2		)	45			40			7			(108		)	(61		)
Interest expense	(114		)	(158		)	(87		)	(12		)	(63		)	(434		)	172			(166		)	(428		)
FFO	610			532			209			76			(257		)	1,170			(584		)	712
Depreciation and amortization	(186		)	(312		)	(151		)	(77		)	—			(726		)	382			(327		)	(671		)
Deferred taxes	(52		)	(1		)	11			21			14			(7		)	(22		)	(38		)	(67		)
Mark-to-market on hedging items and other	(59		)	(80		)	(37		)	(9		)	(127		)	(312		)	106			124			(82		)
Share of earnings from associates	—			—			—			—			—			—			118			—			118
Net income attributable to non-controlling interest and preferred unitholders	—			—			—			—			—			—			—			(471		)	(471		)
Net income (loss) attributable to partnership(2)	$	313		$	139		$	32		$	11		$	(370	)	$	125		$	—		$	—		$	125

FOR THE YEAR ENDED DECEMBER 31, 2016 US$ MILLIONS	Total attributable to Brookfield Infrastructure
																			Contribution from investments in associates			Attributable to non- controlling interest			As per IFRS financials on F-6(1)
	Utilities			Transport			Energy			Comm. Infrastructure			Corporate			Total
Revenues	$	684		$	1,247		$	496		$	163		$	—		$	2,590		$	(1,311	)	$	836		$	2,115
Costs attributed to revenues	(160		)	(650		)	(220		)	(72		)	—			(1,102		)	651			(612		)	(1,063		)
General and administrative costs	—			—			—			—			(166		)	(166		)	—			—			(166		)
Adjusted EBITDA	524			597			276			91			(166		)	1,322			(660		)	224
Other income (expense)	5			(17		)	8			(2		)	84			78			16			1			95
Interest expense	(130		)	(157		)	(109		)	(12		)	(48		)	(456		)	190			(126		)	(392		)
FFO	399			423			175			77			(130		)	944			(454		)	99
Depreciation and amortization	(154		)	(253		)	(128		)	(74		)	—			(609		)	328			(166		)	(447		)
Deferred taxes	5			26			(38		)	29			(17		)	5			9			4			18
Mark-to-market on hedging items and other	(88		)	10			81			(5		)	149			147			(131		)	117			133
Share of earnings from associates	—			—			—			—			—			—			248			—			248
Net income attributable to non-controlling interest and preferred unitholders	—			—			—			—			—			—			—			(54		)	(54		)
Net income (loss) attributable to partnership(2)	$	162		$	206		$	90		$	27		$	2		$	487		$	—		$	—		$	487

FOR THE YEAR ENDED DECEMBER 31, 2015 US$ MILLIONS	Total attributable to Brookfield Infrastructure
													Contribution from investments in associates		Attributable to non- controlling interest		As per IFRS financials on F-6(1)
	Utilities		Transport		Energy		Comm. Infrastructure		Corporate		Total
Revenues	698		1,143		349		123		—		2,313		(1,044	)	586		1,855
Costs attributed to revenues	(174	)	(588	)	(183	)	(57	)	—		(1,002	)	546		(342	)	(798	)
General and administrative costs	—		—		—		—		(134	)	(134	)	—		—		(134	)
Adjusted EBITDA	524		555		166		66		(134	)	1,177		(498	)	244
Other income (expense)	5		(15	)	3		—		34		27		13		(4	)	36
Interest expense	(142	)	(142	)	(79	)	(6	)	(27	)	(396	)	144		(115	)	(367	)
FFO	387		398		90		60		(127	)	808		(341	)	125
Depreciation and amortization	(153	)	(217	)	(90	)	(46	)	—		(506	)	246		(115	)	(375	)
Deferred taxes	(8	)	21		14		14		12		53		(41	)	14		26
Mark-to-market on hedging items and other	(16	)	(67	)	(14	)	(13	)	56		(54	)	67		66		79
Share of earnings from associates	—		—		—		—		—		—		69		—		69
Net income attributable to non-controlling interest and preferred unitholders	—		—		—		—		—		—		—		(90	)	(90	)
Net income (loss) attributable to partnership(2)	210		135		—		15		(59	)	301		—		—		301

(1) The above table provides each segment’s results in the format that management organizes its segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account Brookfield Infrastructure’s ownership in operations accounted for using the consolidation and equity methods under IFRS. The above table reconciles Brookfield Infrastructure’s proportionate results to our partnership’s consolidated statements of operating results on a line by line basis by aggregating the components comprising the earnings from our partnership’s investments in associates and reflecting the portion of each line item attributable to non-controlling interests.

(2) Net income (loss) attributable to our partnership includes net income (loss) attributable to non-controlling interests—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

Brookfield Infrastructure’s revenue arises from the rendering of services by the following operating segments:

US$ MILLIONS	2017		2016		2015
Utilities
Regulated Transmission	$	938	$	27	$	43
Regulated Terminal	301		299		330
Regulated Distribution	546		499		491
Transport
Rail	296		270		316
Ports	681		360		220
Toll Roads	313		262		113
Energy
Transmission & Storage	150		141		105
District Energy	310		257		237
	$	3,535	$	2,115	$	1,855

Summary of financial information by geographic regions

Revenues from external customers

US$ MILLIONS	2017		2016		2015
Australia	$	1,093	$	793	$	699
Brazil	938		—		—
United Kingdom	565		566		635
Colombia	161		150		152
Canada	193		163		118
Chile	153		127		113
United States of America	183		154		138
India	57		39		—
Peru	103		97		—
New Zealand	89		26		—
	$	3,535	$	2,115	$	1,855

Over 10% of our partnership’s revenue is from one customer. For the year ended December 31, 2017, revenue generated from this customer of the utilities segment was $938 million (2016: $nil).

Non-current Assets

US$ MILLIONS	2017		2016
Australia	$	5,770	$	5,542
United Kingdom	4,431		3,739
Chile	2,045		1,748
Brazil	8,184		1,895
United States of America	2,818		2,470
Canada	1,468		1,252
Colombia	764		700
Europe	836		718
India	256		265
Peru	1,356		1,281
New Zealand	37		33
	$	27,965	$	19,643

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ACQUISITION OF BUSINESSES (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure of detailed information about business combination [abstract]

Disclosure of detailed information about business combinations

Consideration transferred

US$ MILLIONS
Cash	$	67
Senior notes(2)	141
Working capital credit facility	19
Total consideration	$	227

(1) The total consideration through the Brookfield-sponsored partnership includes $170 million cash, $357 million in fair value of the Senior notes and $48 million of a working capital facility.

(2) On the date of acquisition of the North American gas storage operation Brookfield Infrastructure held a pre-existing interest in the Senior notes of $117 million, representing the original cost of $104 million and $13 million of income recorded as Other income on the Consolidated Statement of Operating Results in prior periods. On the acquisition date, Brookfield Infrastructure recorded an additional $24 million of Other income on the Consolidated Statement of Operating Results associated with the recycling of accumulated mark-to-market gains on revaluation of the Senior notes, which was equivalent to fair value.

Fair value of assets and liabilities acquired as of July 19, 2016

US$ MILLIONS
Cash and cash equivalents	$	15
Accounts receivable and other	99
Inventory	39
Property, plant and equipment	825
Goodwill	82
Deferred income tax and other liabilities	(148		)
Non-recourse borrowings	(337		)
Net assets acquired before non-controlling interest	575
Non-controlling interest(1)	(348		)
Net assets acquired	$	227

(1) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure and was measured at fair value on the acquisition date

Consideration transferred

US$ MILLIONS
Cash	$	1,306
Consideration payable(1)	262
Total Consideration	$	1,568

Fair value of assets and liabilities acquired as of April 4, 2017:

US$ MILLIONS
Cash and cash equivalents	$	89
Accounts receivable and other	317
Intangible assets(2)	5,515
Goodwill	804
Accounts payable and other liabilities	(202		)
Deferred income tax liabilities	(946		)
Net assets acquired before non-controlling interest	5,577
Non-controlling interest(3)	(4,009		)
Net assets acquired	1,568

(1) The deferred consideration is payable on the fifth anniversary of the date of acquisition and has therefore been initially recorded at fair value within non-current financial liabilities on the consolidated statements of financial position. The deferred consideration is denominated in U.S. dollars and accrues interest at 3.35% compounded annually. The financial liability will be subsequently measured at amortized cost.

(2) Represents authorizations that expire between 2039 and 2041.

(3) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date.

The following table summarizes the purchase price allocation of individually insignificant business combinations that have been completed during the twelve-month periods ended December 31, 2017.

US$ MILLIONS
Cash	$	9
Consideration payable	18
Total consideration	$	27

Fair value of assets and liabilities acquired (provisional):

US$ MILLIONS
Accounts receivable and other	$	28
Goodwill	11
Property, plant and equipment	100
Deferred income tax and other liabilities	(31		)
Non-recourse borrowings	(30		)
Net assets acquired before non-controlling interest	78
Non-controlling interest(1)	(51		)
Net assets acquired	$	27

(1) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date.

Consideration transferred

US$ MILLIONS
Cash	$	13
Common shares of Asciano Limited	132
Total consideration	$	145

Fair value of assets and liabilities acquired as of August 18, 2016

US$ MILLIONS
Cash and cash equivalents	$	12
Accounts receivable and other	233
Assets classified as held for sale(1)	115
Property, plant and equipment	225
Intangible assets	69
Goodwill	199
Liabilities directly associated with assets classified as held for sale(1)	(58		)
Deferred income tax and other liabilities	(109		)
Non-recourse borrowings	(181		)
Net assets acquired before non-controlling interest	505
Non-controlling interest(2)	(360		)
Net assets acquired	$	145

(1) $115 million of equity accounted investments and $58 million of non-recourse borrowings relate to a non-core business acquired as part of the acquisition of the Australian ports business which was sold in the fourth quarter of 2016. The net proceeds recorded approximated the carrying value of the business and therefore no gain or loss on disposition was recorded.

(2) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date

Consideration transferred

US$ MILLIONS
Cash	$	118
Consideration payable(1)	9
Total consideration	$	127

Fair value of assets and liabilities acquired as of June 28, 2016

US$ MILLIONS
Cash and cash equivalents(2)	$	115
Accounts receivable and other	121
Property, plant and equipment	6
Intangible assets(3)	973
Goodwill	139
Deferred income tax and other liabilities	(160		)
Non-recourse borrowings	(441		)
Net assets acquired before non-controlling interest	753
Non-controlling interest(4)	(626		)
Net assets acquired	$	127

(1) The purchase price is payable in a series of four payments, one on the date of acquisition as well as three equal payments made 18 months, 27 months and 36 months subsequent to this date and consequently an amount payable of $9 million is recorded as a financial liability within the consolidated statements of financial position as at December 31, 2016.

(2) Includes $114 million of restricted cash primarily related to toll road construction obligations.

(3) Represents a 30 year Peruvian toll road service concession agreement expiring in January 2043. The agreement obligates Rutas to maintain the toll roads to an acceptable standard in exchange for the ability to charge regulated tariffs to the users of the toll road.

(4) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date

Consideration transferred

US$ MILLIONS
Cash	$	42
Total consideration	$	42

Fair value of assets and liabilities acquired as of March 1, 2016

US$ MILLIONS
Accounts receivable and other	$	38
Property, plant and equipment	7
Financial assets	142
Intangible assets	147
Deferred income tax assets	10
Accounts payable and other	(38		)
Non-recourse borrowings	(202		)
Net assets acquired before non-controlling interest	104
Non-controlling interest(1)	(62		)
Net assets acquired	$	42

(1) Non-controlling interest represents the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date which is equal to the consideration paid by the non-controlling interest

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Measurement [Abstract]

Disclosure of financial assets

The following table provides the break down of financial instruments and their associated financial instrument classifications as at December 31, 2017:

US$ MILLIONS	FVTPL		Available for sale securities		Loans and Receivables/ Other Liabilities
Financial Instrument Classification	(Fair Value)		(Fair Value through OCI)		(Amortized Cost)		Total
MEASUREMENT BASIS
Financial assets
Cash and cash equivalents	$	—	$	—	$	374	$	374
Accounts receivable and other	—		—		838		838
Financial assets (current and non-current)(1)	608		57		172		837
Marketable securities	—		85		—		85
Total	$	608	$	142	$	1,384	$	2,134
Financial liabilities
Corporate borrowings	$	—	$	—	$	2,101	$	2,101
Non-recourse borrowings (current and non-current)	—		—		8,063		8,063
Accounts payable and other	—		—		864		864
Preferred shares(2)	—		—		20		20
Financial liabilities (current and non-current)(1)	440		—		873		1,313
Total	$	440	$	—	$	11,921	$	12,361

(1) Derivative instruments which are elected for hedge accounting totaling $464 million are included in Financial assets and $146 million of derivative instruments are included in Financial liabilities.

(2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

The following table provides the break down of financial instruments and their associated financial instrument classifications as at December 31, 2016:

US$ MILLIONS	FVTPL		Available for sale securities		Loans and Receivables/ Other Liabilities
Financial Instrument Classification	(Fair Value)		(Fair Value through OCI)		(Amortized Cost)		Total
MEASUREMENT BASIS
Financial assets
Cash and cash equivalents	$	—	$	—	$	786	$	786
Accounts receivable and other	—		—		485		485
Financial assets (current and non-current)(1)	893		12		233		1,138
Marketable securities	—		3		—		3
Total	$	893	$	15	$	1,504	$	2,412
Financial liabilities
Corporate borrowings	$	—	$	—	$	1,002	$	1,002
Non-recourse borrowings (current and non-current)	—		—		7,324		7,324
Accounts payable and other	—		—		712		712
Preferred shares(2)	—		—		20		20
Financial liabilities (current and non-current)(1)	381		—		—		381
Total	$	381	$	—	$	9,058	$	9,439

(1) Derivative instruments which are elected for hedge accounting totaling $722 million are included in Financial assets and $185 million of derivative instruments are included in Financial liabilities.

(2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

US$ MILLIONS	2017		2016
Current:
Foreign currency forward contracts	$	10	$	132
Loans and receivables	43		73
Marketable securities	85		3
Other	54		33
Total current	$	192	$	241
Non-current:
Cross currency interest rate swaps	$	243	$	589
Loans and receivables	210		172
Foreign currency forward contracts	226		78
Other	51		61
Total non-current	$	730	$	900

Disclosure of financial liabilities

The following table provides the break down of financial instruments and their associated financial instrument classifications as at December 31, 2017:

US$ MILLIONS	FVTPL		Available for sale securities		Loans and Receivables/ Other Liabilities
Financial Instrument Classification	(Fair Value)		(Fair Value through OCI)		(Amortized Cost)		Total
MEASUREMENT BASIS
Financial assets
Cash and cash equivalents	$	—	$	—	$	374	$	374
Accounts receivable and other	—		—		838		838
Financial assets (current and non-current)(1)	608		57		172		837
Marketable securities	—		85		—		85
Total	$	608	$	142	$	1,384	$	2,134
Financial liabilities
Corporate borrowings	$	—	$	—	$	2,101	$	2,101
Non-recourse borrowings (current and non-current)	—		—		8,063		8,063
Accounts payable and other	—		—		864		864
Preferred shares(2)	—		—		20		20
Financial liabilities (current and non-current)(1)	440		—		873		1,313
Total	$	440	$	—	$	11,921	$	12,361

(1) Derivative instruments which are elected for hedge accounting totaling $464 million are included in Financial assets and $146 million of derivative instruments are included in Financial liabilities.

(2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

The following table provides the break down of financial instruments and their associated financial instrument classifications as at December 31, 2016:

US$ MILLIONS	FVTPL		Available for sale securities		Loans and Receivables/ Other Liabilities
Financial Instrument Classification	(Fair Value)		(Fair Value through OCI)		(Amortized Cost)		Total
MEASUREMENT BASIS
Financial assets
Cash and cash equivalents	$	—	$	—	$	786	$	786
Accounts receivable and other	—		—		485		485
Financial assets (current and non-current)(1)	893		12		233		1,138
Marketable securities	—		3		—		3
Total	$	893	$	15	$	1,504	$	2,412
Financial liabilities
Corporate borrowings	$	—	$	—	$	1,002	$	1,002
Non-recourse borrowings (current and non-current)	—		—		7,324		7,324
Accounts payable and other	—		—		712		712
Preferred shares(2)	—		—		20		20
Financial liabilities (current and non-current)(1)	381		—		—		381
Total	$	381	$	—	$	9,058	$	9,439

(1) Derivative instruments which are elected for hedge accounting totaling $722 million are included in Financial assets and $185 million of derivative instruments are included in Financial liabilities.

(2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

US$ MILLIONS	2017		2016
Current:
Foreign currency forward contracts	$	150	$	47
Other financial liabilities	87		182
Total current financial liabilities	$	237	$	229
Non-current:
Interest rate swaps	$	9	$	34
Inflation swaps	84		97
Deferred consideration(1)	916		—
Other financial liabilities	67		21
Total non-current financial liabilities	$	1,076	$	152

(1) The deferred consideration is related to the acquisitions completed during 2017. See Note 5, Acquisition of Businesses for further details.

Carrying and fair values of financial assets

The following table provides the carrying values and fair values of financial instruments as at December 31, 2017 and December 31, 2016:

	Dec. 31, 2017				Dec. 31, 2016
US$ MILLIONS	Carrying Value		Fair Value		Carrying Value		Fair Value
Financial assets
Cash and cash equivalents	$	374	$	374	$	786	$	786
Accounts receivable and other	838		838		485		485
Financial assets (current and non-current)	837		837		1,138		1,138
Marketable securities	85		85		3		3
Total	$	2,134	$	2,134	$	2,412	$	2,412

During the year, no transfers were made between level 1 and 2 or level 2 and 3. The following table categorizes financial assets and liabilities, which are carried at fair value, based upon the level of input.

	Dec. 31, 2017						Dec. 31, 2016
US$ MILLIONS	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Financial assets
Marketable securities	$	85	$	—	$	—	$	3	$	—	$	—
Financial assets (current and non-current)	—		617		48		—		863		42
Financial liabilities
Financial liabilities (current and non-current)	$	—	$	351	$	89	$	—	$	335	$	46

The fair value of our partnership’s financial assets and financial liabilities are measured at fair value on a recurring basis. The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s financial assets and financial liabilities:

US$ MILLIONS	Fair value hierarchy	Dec. 31, 2017		Dec. 31, 2016
Marketable securities	Level 1(1)	$	85	$	3
Foreign currency forward contracts	Level 2(2)
Financial asset		$	236	$	210
Financial liability		196		48
Interest rate swaps & other	Level 2(2)
Financial asset		$	381	$	653
Financial liability		155		287
Other contracts
Financial asset	Level 3(3)	$	48	$	42
Financial liability	Level 3(3)	89		46

(1) Valuation technique: Quoted bid prices in an active market.

(2) Valuation technique: Discounted cash flow. Future cash flows are estimated based on forward exchange rates (from observable forward exchange rates at the end of the reporting period) and contract forward rates, discounted at a rate that reflects our credit risk and the credit risk of various counterparties.

(3) Valuation technique: Discounted cash flow. Future cash flows primarily driven by freight volumes and the use of assumptions concerning the amount and timing of estimated future cash flows and discount rates.

Carrying and fair values of financial liabilities

During the year, no transfers were made between level 1 and 2 or level 2 and 3. The following table categorizes financial assets and liabilities, which are carried at fair value, based upon the level of input.

	Dec. 31, 2017						Dec. 31, 2016
US$ MILLIONS	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Financial assets
Marketable securities	$	85	$	—	$	—	$	3	$	—	$	—
Financial assets (current and non-current)	—		617		48		—		863		42
Financial liabilities
Financial liabilities (current and non-current)	$	—	$	351	$	89	$	—	$	335	$	46

	Dec. 31, 2017				Dec. 31, 2016
US$ MILLIONS	Carrying Value		Fair Value		Carrying Value		Fair Value
Financial liabilities
Corporate borrowings(1)	$	2,101	$	2,113	$	1,002	$	1,023
Non-recourse borrowings(2)	8,063		8,392		7,324		7,478
Accounts payable and other (current and non-current)	864		864		712		712
Preferred shares(3)	20		20		20		20
Financial liabilities (current and non-current)	1,313		1,313		381		381
	$	12,361	$	12,702	$	9,439	$	9,614

(1) Corporate borrowings is classified under level 1 of the fair value hierarchy; quoted prices in an active market are available.

(2) Non-recourse borrowings are classified under level 2 of the fair value hierarchy with the exception of certain borrowings at the U.K. port operation, Chilean toll road and Peruvian toll road which are classified under level 1. For level 2 fair values, future cash flows are estimated based on observable forward interest rates at the end of the reporting period.

(3) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

The fair value of our partnership’s financial assets and financial liabilities are measured at fair value on a recurring basis. The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s financial assets and financial liabilities:

US$ MILLIONS	Fair value hierarchy	Dec. 31, 2017		Dec. 31, 2016
Marketable securities	Level 1(1)	$	85	$	3
Foreign currency forward contracts	Level 2(2)
Financial asset		$	236	$	210
Financial liability		196		48
Interest rate swaps & other	Level 2(2)
Financial asset		$	381	$	653
Financial liability		155		287
Other contracts
Financial asset	Level 3(3)	$	48	$	42
Financial liability	Level 3(3)	89		46

(1) Valuation technique: Quoted bid prices in an active market.

(2) Valuation technique: Discounted cash flow. Future cash flows are estimated based on forward exchange rates (from observable forward exchange rates at the end of the reporting period) and contract forward rates, discounted at a rate that reflects our credit risk and the credit risk of various counterparties.

(3) Valuation technique: Discounted cash flow. Future cash flows primarily driven by freight volumes and the use of assumptions concerning the amount and timing of estimated future cash flows and discount rates.

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CASH AND CASH EQUIVALENTS (Tables)

12 Months Ended

Dec. 31, 2017

Cash and cash equivalents [abstract]

Disclosure of cash and cash equivalents

US$ MILLIONS	2017		2016
Cash	$	258	$	652
Restricted cash(1)	33		84
Cash equivalents(2)	83		50
Total cash and cash equivalents	$	374	$	786

(1) Restricted cash primarily relates to our partnership’s financing arrangements, including debt service accounts.

(2) Short-term, highly liquid investments that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value.

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FINANCIAL ASSETS (Tables)

12 Months Ended

Dec. 31, 2017

Financial Instruments [Abstract]

Disclosure of financial assets

The following table provides the break down of financial instruments and their associated financial instrument classifications as at December 31, 2017:

US$ MILLIONS	FVTPL		Available for sale securities		Loans and Receivables/ Other Liabilities
Financial Instrument Classification	(Fair Value)		(Fair Value through OCI)		(Amortized Cost)		Total
MEASUREMENT BASIS
Financial assets
Cash and cash equivalents	$	—	$	—	$	374	$	374
Accounts receivable and other	—		—		838		838
Financial assets (current and non-current)(1)	608		57		172		837
Marketable securities	—		85		—		85
Total	$	608	$	142	$	1,384	$	2,134
Financial liabilities
Corporate borrowings	$	—	$	—	$	2,101	$	2,101
Non-recourse borrowings (current and non-current)	—		—		8,063		8,063
Accounts payable and other	—		—		864		864
Preferred shares(2)	—		—		20		20
Financial liabilities (current and non-current)(1)	440		—		873		1,313
Total	$	440	$	—	$	11,921	$	12,361

(1) Derivative instruments which are elected for hedge accounting totaling $464 million are included in Financial assets and $146 million of derivative instruments are included in Financial liabilities.

(2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

The following table provides the break down of financial instruments and their associated financial instrument classifications as at December 31, 2016:

US$ MILLIONS	FVTPL		Available for sale securities		Loans and Receivables/ Other Liabilities
Financial Instrument Classification	(Fair Value)		(Fair Value through OCI)		(Amortized Cost)		Total
MEASUREMENT BASIS
Financial assets
Cash and cash equivalents	$	—	$	—	$	786	$	786
Accounts receivable and other	—		—		485		485
Financial assets (current and non-current)(1)	893		12		233		1,138
Marketable securities	—		3		—		3
Total	$	893	$	15	$	1,504	$	2,412
Financial liabilities
Corporate borrowings	$	—	$	—	$	1,002	$	1,002
Non-recourse borrowings (current and non-current)	—		—		7,324		7,324
Accounts payable and other	—		—		712		712
Preferred shares(2)	—		—		20		20
Financial liabilities (current and non-current)(1)	381		—		—		381
Total	$	381	$	—	$	9,058	$	9,439

(1) Derivative instruments which are elected for hedge accounting totaling $722 million are included in Financial assets and $185 million of derivative instruments are included in Financial liabilities.

(2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

US$ MILLIONS	2017		2016
Current:
Foreign currency forward contracts	$	10	$	132
Loans and receivables	43		73
Marketable securities	85		3
Other	54		33
Total current	$	192	$	241
Non-current:
Cross currency interest rate swaps	$	243	$	589
Loans and receivables	210		172
Foreign currency forward contracts	226		78
Other	51		61
Total non-current	$	730	$	900

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ACCOUNTS RECEIVABLE AND OTHER (Tables)

12 Months Ended

Dec. 31, 2017

Subclassifications of assets, liabilities and equities [abstract]

Disclosure of accounts receivable and other

US$ MILLIONS	2017		2016
Current:
Accounts receivable	$	738	$	395
Prepayments & other assets	100		109
Total current	$	838	$	504
Non-current:
Tax recovery receivables	$	52	$	55
Other assets	221		110
Total non-current	$	273	$	165

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INVENTORY (Tables)

12 Months Ended

Dec. 31, 2017

Inventories [Abstract]

Disclosure of current inventories

US$ MILLIONS	2017		2016
Current:
Natural gas inventory	$	84	$	82
Raw materials and consumables	24		19
Carrying amount of inventories	$	108	$	101

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INVESTMENT IN ASSOCIATES AND JOINT VENTURES (Tables)

12 Months Ended

Dec. 31, 2017

Interests In Other Entities [Abstract]

Disclosure of ownership interest, voting interest, and carrying value of joint ventures

The following table presents the ownership interest and carrying values of Brookfield Infrastructure’s investments in associates and joint ventures:

	Name of entity	Ownership and Voting Interest				Carrying Value
US$ MILLIONS		Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2017		Dec. 31, 2016
Brazilian toll road(1),(2)	Arteris S.A.	45	%	49	%	$	1,715	$	1,505
North American natural gas transmission operation(3),(4)	Natural Gas Pipeline of America LLC	50	%	50	%	1,013		806
Chilean electricity transmission operation(5)	Transelec S.A., held through ETC Transmission Holdings, S.L.	28	%	28	%	930		699
European telecommunications infrastructure operations	TDF Infrastructure SAS	21	%	21	%	614		536
Brazilian rail business	VLI S.A.	11	%	11	%	436		376
Australian ports operation(6)	Patrick Terminals, held through PTH No 1 Pty Ltd	13	%	13	%	191		181
Other(7)		11%-50%		11%-50%		673		624
Total						$	5,572	$	4,727

The following table represents the change in the balance of investments in associates and joint ventures:

US$ MILLIONS	2017			2016
Balance at beginning of year	$	4,727		$	2,973
Share of earnings for the year(3)	118			248
Foreign currency translation and other	167			219
Share of other comprehensive income	183			225
Distributions	(66		)	(46		)
Disposition of interest(1)	(177		)	—
Acquisitions(2),(4),(5)	620			1,108
Balance at end of year	$	5,572		$	4,727

\

(1) In August 2017, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund, reorganized the holding entities of its investment in the Brazilian toll road operation. This transaction resulted in no gain or loss being recorded within the Consolidated Statements of Operating Results. The reorganization resulted in Brookfield Infrastructure no longer consolidating an 8% interest of the investment attributable to an institutional partner. The reorganization concurrently reduced the investments in associates and joint venture and non-controlling interest partnership capital balances by $177 million during the third quarter of 2017.

(2) Throughout 2017, Brookfield Infrastructure, alongside an institutional partner, injected $349 million into the Brazilian toll road operation for growth capital expenditure requirements increasing our partnership’s ownership interest to 45%.

(3) Share of earnings for the year ended December 31, 2016 includes $195 million of non-recurring gains primarily related to our transport and energy operations.

(4) In May 2017, Brookfield Infrastructure and its partner in its North American natural gas transmission operation each injected $200 million into the business to pay down operating level debt. A similar transaction was completed in April 2016 by Brookfield Infrastructure and its partner in the amount of $312 million.

(5) During December 2017, our partnership signed an agreement to sell our ownership in ETC Transmission Holdings. Completion of this transaction is subject to certain closing conditions, third party consents and regulatory approvals.

(6) In August 2016, Brookfield Infrastructure expanded its ports operations in Australia as it acquired an effective 13% interest in PTH No 1 Pty Ltd (“Patrick”) through a Brookfield-sponsored infrastructure fund, alongside institutional partners, for total consideration of $202 million. The Brookfield consortium maintains 50% of the voting rights of Patrick in a joint venture with Qube Holdings Limited, along with its institutional partners. Brookfield Infrastructure has joint control through its position in the business. Accordingly, Brookfield Infrastructure equity accounts for the entity.

(7) Other includes our partnership’s Texas electricity transmission project, Brazil electricity transmission operation, European port operation, North American west coast container terminal, U.S. gas storage operation and other investments in associates and joint ventures held through consolidated subsidiaries.

Disclosure of ownership interest, voting interest, and carrying value of associates

The following table presents the ownership interest and carrying values of Brookfield Infrastructure’s investments in associates and joint ventures:

	Name of entity	Ownership and Voting Interest				Carrying Value
US$ MILLIONS		Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2017		Dec. 31, 2016
Brazilian toll road(1),(2)	Arteris S.A.	45	%	49	%	$	1,715	$	1,505
North American natural gas transmission operation(3),(4)	Natural Gas Pipeline of America LLC	50	%	50	%	1,013		806
Chilean electricity transmission operation(5)	Transelec S.A., held through ETC Transmission Holdings, S.L.	28	%	28	%	930		699
European telecommunications infrastructure operations	TDF Infrastructure SAS	21	%	21	%	614		536
Brazilian rail business	VLI S.A.	11	%	11	%	436		376
Australian ports operation(6)	Patrick Terminals, held through PTH No 1 Pty Ltd	13	%	13	%	191		181
Other(7)		11%-50%		11%-50%		673		624
Total						$	5,572	$	4,727

The following table represents the change in the balance of investments in associates and joint ventures:

US$ MILLIONS	2017			2016
Balance at beginning of year	$	4,727		$	2,973
Share of earnings for the year(3)	118			248
Foreign currency translation and other	167			219
Share of other comprehensive income	183			225
Distributions	(66		)	(46		)
Disposition of interest(1)	(177		)	—
Acquisitions(2),(4),(5)	620			1,108
Balance at end of year	$	5,572		$	4,727

\

(1) In August 2017, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund, reorganized the holding entities of its investment in the Brazilian toll road operation. This transaction resulted in no gain or loss being recorded within the Consolidated Statements of Operating Results. The reorganization resulted in Brookfield Infrastructure no longer consolidating an 8% interest of the investment attributable to an institutional partner. The reorganization concurrently reduced the investments in associates and joint venture and non-controlling interest partnership capital balances by $177 million during the third quarter of 2017.

(2) Throughout 2017, Brookfield Infrastructure, alongside an institutional partner, injected $349 million into the Brazilian toll road operation for growth capital expenditure requirements increasing our partnership’s ownership interest to 45%.

(3) Share of earnings for the year ended December 31, 2016 includes $195 million of non-recurring gains primarily related to our transport and energy operations.

(4) In May 2017, Brookfield Infrastructure and its partner in its North American natural gas transmission operation each injected $200 million into the business to pay down operating level debt. A similar transaction was completed in April 2016 by Brookfield Infrastructure and its partner in the amount of $312 million.

(5) During December 2017, our partnership signed an agreement to sell our ownership in ETC Transmission Holdings. Completion of this transaction is subject to certain closing conditions, third party consents and regulatory approvals.

(6) In August 2016, Brookfield Infrastructure expanded its ports operations in Australia as it acquired an effective 13% interest in PTH No 1 Pty Ltd (“Patrick”) through a Brookfield-sponsored infrastructure fund, alongside institutional partners, for total consideration of $202 million. The Brookfield consortium maintains 50% of the voting rights of Patrick in a joint venture with Qube Holdings Limited, along with its institutional partners. Brookfield Infrastructure has joint control through its position in the business. Accordingly, Brookfield Infrastructure equity accounts for the entity.

(7) Other includes our partnership’s Texas electricity transmission project, Brazil electricity transmission operation, European port operation, North American west coast container terminal, U.S. gas storage operation and other investments in associates and joint ventures held through consolidated subsidiaries.

Disclosure of interests in associates

The following tables present the gross assets and liabilities of Brookfield Infrastructure’s investments in associates and joint ventures:

	As at December 31, 2017
	Total														Attributable to
US$ MILLIONS	Current Assets		Non- Current Assets		Total Assets		Current Liabilities		Non- Current Liabilities		Total Liabilities		Total Net Assets		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	304	$	5,769	$	6,073	$	602	$	2,102	$	2,704	$	3,369	$	1,654	$	1,715
North American natural gas transmission operation	139		4,741		4,880		139		2,716		2,855		2,025		1,012		1,013
Chilean electricity transmission operation	280		7,122		7,402		181		3,874		4,055		3,347		2,417		930
European telecommunications infrastructure operation	464		6,281		6,745		561		2,968		3,529		3,216		2,602		614
Brazilian rail business	743		6,131		6,874		515		2,405		2,920		3,954		3,518		436
Australian ports operation	198		2,281		2,479		24		1,332		1,356		1,123		932		191
Other	694		5,228		5,922		865		2,291		3,156		2,766		2,093		673
Total	$	2,822	$	37,553	$	40,375	$	2,887	$	17,688	$	20,575	$	19,800	$	14,228	$	5,572

	As at December 31, 2016
	Total														Attributable to
US$ MILLIONS	Current Assets		Non- Current Assets		Total Assets		Current Liabilities		Non- Current Liabilities		Total Liabilities		Total Net Assets		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	263	$	4,977	$	5,240	$	823	$	1,665	$	2,488	$	2,752	$	1,247	$	1,505
North American natural gas transmission operation	122		5,767		5,889		1,353		2,925		4,278		1,611		805		806
Chilean electricity transmission operation	221		5,519		5,740		142		3,234		3,376		2,364		1,665		699
European telecommunications infrastructure operation	328		5,437		5,765		443		2,528		2,971		2,794		2,258		536
Brazilian rail business	460		5,265		5,725		674		1,645		2,319		3,406		3,030		376
Australian ports operation	171		2,166		2,337		66		1,229		1,295		1,042		861		181
Other	360		4,378		4,738		515		1,827		2,342		2,396		1,772		624
Total	$	1,925	$	33,509	$	35,434	$	4,016	$	15,053	$	19,069	$	16,365	$	11,638	$	4,727

The following tables present the gross amounts of revenue, net income, other comprehensive income from Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2017, 2016, and 2015:

	Year ended December 31, 2017
	Total									Attributable to
US$ MILLIONS	Revenue		Net Income		OCI			Total Comprehensive Income		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	928	$	95	$	(39	)	$	56	$	19	$	37
North American natural gas transmission operation	681		15		(1		)	14		7		7
Chilean electricity transmission operation	441		37		806			843		609		234
European telecommunications infrastructure operation	783		58		435			493		409		84
Brazilian rail business	1,409		56		490			546		486		60
Australian ports operation	418		19		78			97		80		17
Other	1,809		98		(19		)	79		55		24
Total	$	6,469	$	378	$	1,750		$	2,128	$	1,665	$	463

	Year ended December 31, 2016
	Total											Attributable to
US$ MILLIONS	Revenue		Net Income			OCI			Total Comprehensive Income			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	766	$	185		$	382		$	567		$	275		$	292
North American natural gas transmission operation	573		133			5			138			69			69
Chilean electricity transmission operation	433		38			217			255			184			71
European telecommunications infrastructure operation	767		121			376			497			393			104
Brazilian rail business	1,024		70			976			1,046			931			115
Australian ports operation	164		(31		)	(81		)	(112		)	(97		)	(15		)
Other	1,091		54			280			334			278			56
Total	$	4,818	$	570		$	2,155		$	2,725		$	2,033		$	692

	Year ended December 31, 2015
	Total											Attributable to
US$ MILLIONS	Revenue		Net Income			OCI			Total Comprehensive Income			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	758	$	(12	)	$	(1,118	)	$	(1,130	)	$	(778	)	$	(352	)
North American natural gas transmission operation	522		(29		)	—			(29		)	(19		)	(10		)
Chilean electricity transmission operation	432		75			(145		)	(70		)	(51		)	(19		)
European telecommunications infrastructure operation	579		62			72			134			104			30
Brazilian rail business	1,074		136			(668		)	(532		)	(474		)	(58		)
Other	947		94			212			306			241			65
Total	$	4,312	$	326		$	(1,647	)	$	(1,321	)	$	(977	)	$	(344	)

The following tables present the cash flow activities of Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2017, 2016, and 2015:

	Year ended December 31, 2017
	Total										Attributable to
US$ MILLIONS	Operating		Investing			Financing			Total Cash Flows		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	345	$	(1,046	)	$	800		$	99	$	57	$	42
North American natural gas transmission operation	258		(169		)	(79		)	10		5		5
Chilean electricity transmission operation	256		(240		)	14			30		22		8
European telecommunications infrastructure operation	338		(226		)	(58		)	54		43		11
Brazilian rail business	472		(458		)	292			306		272		34
Australian ports operation	80		(15		)	(22		)	43		40		3
Other	284		(729		)	538			93		80		13
Total	$	2,033	$	(2,883	)	$	1,485		$	635	$	519	$	116

	Year ended December 31, 2016
	Total											Attributable to
US$ MILLIONS	Operating		Investing			Financing			Total Cash Flows			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	249	$	(491	)	$	212		$	(30	)	$	(19	)	$	(11	)
North American natural gas transmission operation	163		(170		)	2			(5		)	(2		)	(3		)
Chilean electricity transmission operation	273		(207		)	(27		)	39			28			11
European telecommunications infrastructure operation	325		(323		)	(83		)	(81		)	(64		)	(17		)
Brazilian rail business	337		(780		)	272			(171		)	(152		)	(19		)
Australian ports operation	15		(391		)	433			57			47			10
Other	142		(229		)	71			(16		)	(15		)	(1		)
Total	$	1,504	$	(2,591	)	$	880		$	(207	)	$	(177	)	$	(30	)

	Year ended December 31, 2015
	Total											Attributable to
US$ MILLIONS	Operating		Investing			Financing			Total Cash Flows			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	194	$	(534	)	$	59		$	(281	)	$	(194	)	$	(87	)
North American natural gas transmission operation	98		(157		)	10			(49		)	(32		)	(17		)
Chilean electricity transmission operation	274		(122		)	(197		)	(45		)	(32		)	(13		)
European telecommunications infrastructure operation	253		(101		)	(19		)	133			106			27
Brazilian rail business	309		(929		)	588			(32		)	(29		)	(3		)
Other	154		(89		)	(36		)	29			18			11
Total	$	1,282	$	(1,932	)	$	405		$	(245	)	$	(163	)	$	(82	)

Disclosure of interests in joint ventures

The following tables present the gross assets and liabilities of Brookfield Infrastructure’s investments in associates and joint ventures:

	As at December 31, 2017
	Total														Attributable to
US$ MILLIONS	Current Assets		Non- Current Assets		Total Assets		Current Liabilities		Non- Current Liabilities		Total Liabilities		Total Net Assets		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	304	$	5,769	$	6,073	$	602	$	2,102	$	2,704	$	3,369	$	1,654	$	1,715
North American natural gas transmission operation	139		4,741		4,880		139		2,716		2,855		2,025		1,012		1,013
Chilean electricity transmission operation	280		7,122		7,402		181		3,874		4,055		3,347		2,417		930
European telecommunications infrastructure operation	464		6,281		6,745		561		2,968		3,529		3,216		2,602		614
Brazilian rail business	743		6,131		6,874		515		2,405		2,920		3,954		3,518		436
Australian ports operation	198		2,281		2,479		24		1,332		1,356		1,123		932		191
Other	694		5,228		5,922		865		2,291		3,156		2,766		2,093		673
Total	$	2,822	$	37,553	$	40,375	$	2,887	$	17,688	$	20,575	$	19,800	$	14,228	$	5,572

	As at December 31, 2016
	Total														Attributable to
US$ MILLIONS	Current Assets		Non- Current Assets		Total Assets		Current Liabilities		Non- Current Liabilities		Total Liabilities		Total Net Assets		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	263	$	4,977	$	5,240	$	823	$	1,665	$	2,488	$	2,752	$	1,247	$	1,505
North American natural gas transmission operation	122		5,767		5,889		1,353		2,925		4,278		1,611		805		806
Chilean electricity transmission operation	221		5,519		5,740		142		3,234		3,376		2,364		1,665		699
European telecommunications infrastructure operation	328		5,437		5,765		443		2,528		2,971		2,794		2,258		536
Brazilian rail business	460		5,265		5,725		674		1,645		2,319		3,406		3,030		376
Australian ports operation	171		2,166		2,337		66		1,229		1,295		1,042		861		181
Other	360		4,378		4,738		515		1,827		2,342		2,396		1,772		624
Total	$	1,925	$	33,509	$	35,434	$	4,016	$	15,053	$	19,069	$	16,365	$	11,638	$	4,727

The following tables present the gross amounts of revenue, net income, other comprehensive income from Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2017, 2016, and 2015:

	Year ended December 31, 2017
	Total									Attributable to
US$ MILLIONS	Revenue		Net Income		OCI			Total Comprehensive Income		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	928	$	95	$	(39	)	$	56	$	19	$	37
North American natural gas transmission operation	681		15		(1		)	14		7		7
Chilean electricity transmission operation	441		37		806			843		609		234
European telecommunications infrastructure operation	783		58		435			493		409		84
Brazilian rail business	1,409		56		490			546		486		60
Australian ports operation	418		19		78			97		80		17
Other	1,809		98		(19		)	79		55		24
Total	$	6,469	$	378	$	1,750		$	2,128	$	1,665	$	463

	Year ended December 31, 2016
	Total											Attributable to
US$ MILLIONS	Revenue		Net Income			OCI			Total Comprehensive Income			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	766	$	185		$	382		$	567		$	275		$	292
North American natural gas transmission operation	573		133			5			138			69			69
Chilean electricity transmission operation	433		38			217			255			184			71
European telecommunications infrastructure operation	767		121			376			497			393			104
Brazilian rail business	1,024		70			976			1,046			931			115
Australian ports operation	164		(31		)	(81		)	(112		)	(97		)	(15		)
Other	1,091		54			280			334			278			56
Total	$	4,818	$	570		$	2,155		$	2,725		$	2,033		$	692

	Year ended December 31, 2015
	Total											Attributable to
US$ MILLIONS	Revenue		Net Income			OCI			Total Comprehensive Income			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	758	$	(12	)	$	(1,118	)	$	(1,130	)	$	(778	)	$	(352	)
North American natural gas transmission operation	522		(29		)	—			(29		)	(19		)	(10		)
Chilean electricity transmission operation	432		75			(145		)	(70		)	(51		)	(19		)
European telecommunications infrastructure operation	579		62			72			134			104			30
Brazilian rail business	1,074		136			(668		)	(532		)	(474		)	(58		)
Other	947		94			212			306			241			65
Total	$	4,312	$	326		$	(1,647	)	$	(1,321	)	$	(977	)	$	(344	)

The following tables present the cash flow activities of Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2017, 2016, and 2015:

	Year ended December 31, 2017
	Total										Attributable to
US$ MILLIONS	Operating		Investing			Financing			Total Cash Flows		Other Ownership Interests		Partnership’s Share
Brazilian toll road	$	345	$	(1,046	)	$	800		$	99	$	57	$	42
North American natural gas transmission operation	258		(169		)	(79		)	10		5		5
Chilean electricity transmission operation	256		(240		)	14			30		22		8
European telecommunications infrastructure operation	338		(226		)	(58		)	54		43		11
Brazilian rail business	472		(458		)	292			306		272		34
Australian ports operation	80		(15		)	(22		)	43		40		3
Other	284		(729		)	538			93		80		13
Total	$	2,033	$	(2,883	)	$	1,485		$	635	$	519	$	116

	Year ended December 31, 2016
	Total											Attributable to
US$ MILLIONS	Operating		Investing			Financing			Total Cash Flows			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	249	$	(491	)	$	212		$	(30	)	$	(19	)	$	(11	)
North American natural gas transmission operation	163		(170		)	2			(5		)	(2		)	(3		)
Chilean electricity transmission operation	273		(207		)	(27		)	39			28			11
European telecommunications infrastructure operation	325		(323		)	(83		)	(81		)	(64		)	(17		)
Brazilian rail business	337		(780		)	272			(171		)	(152		)	(19		)
Australian ports operation	15		(391		)	433			57			47			10
Other	142		(229		)	71			(16		)	(15		)	(1		)
Total	$	1,504	$	(2,591	)	$	880		$	(207	)	$	(177	)	$	(30	)

	Year ended December 31, 2015
	Total											Attributable to
US$ MILLIONS	Operating		Investing			Financing			Total Cash Flows			Other Ownership Interests			Partnership’s Share
Brazilian toll road	$	194	$	(534	)	$	59		$	(281	)	$	(194	)	$	(87	)
North American natural gas transmission operation	98		(157		)	10			(49		)	(32		)	(17		)
Chilean electricity transmission operation	274		(122		)	(197		)	(45		)	(32		)	(13		)
European telecommunications infrastructure operation	253		(101		)	(19		)	133			106			27
Brazilian rail business	309		(929		)	588			(32		)	(29		)	(3		)
Other	154		(89		)	(36		)	29			18			11
Total	$	1,282	$	(1,932	)	$	405		$	(245	)	$	(163	)	$	(82	)

XML

PROPERTY, PLANT AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2017

Property, plant and equipment [abstract]

Disclosure of detailed information about property, plant and equipment

Depreciation of an asset commences when it is available for use. Property, plant and equipment are depreciated on a straight line or declining-balance basis over the estimated useful lives of each component of the assets as follows:

Buildings	Up to 70 years
Transmission stations, towers and related fixtures	Up to 40 years
Leasehold improvements	Up to 50 years
Plant and equipment	Up to 40 years
Network systems	Up to 60 years
Track	Up to 40 years
District energy systems	Up to 50 years
Gas storage assets	Up to 50 years

The following table summarizes the carrying amount of property, plant and equipment that would have been recognized had assets been carried under the cost model.

US$ MILLIONS	Dec. 31, 2017		Dec. 31, 2016
Utilities	$	2,961	$	2,512
Transport	1,970		1,845
Energy	2,246		2,122

The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s property, plant and equipment assets, categorized by segment.

	Dec. 31, 2017				Dec. 31, 2016
Segment	Valuation Technique	Discount Rate	Terminal Value Multiple	Investment Horizon	Valuation Technique	Discount Rate	Terminal Value Multiple	Investment Horizon
Utilities	Discounted cash flow model	7% to 12%	7x to 21x	10 to 20 yrs	Discounted cash flow model	7% to 12%	7x to 18x	10 to 20 yrs
Transport	Discounted cash flow model	10% to 15%	9x to 14x	10 to 20 yrs	Discounted cash flow model	10% to 17%	8x to 14x	10 to 20 yrs
Energy	Discounted cash flow model	12% to 15%	8x to 13x	10 yrs	Discounted cash flow model	9% to 14%	10x to 12x	10 yrs

US$ MILLIONS	Utility Assets			Transport Assets			Energy Assets			Total Assets
Gross Carrying Amount:
Balance at January 1, 2016	$	2,945		$	2,150		$	1,457		$	6,552
Additions, net of disposals	399			76			89			564
Non-cash (disposals) additions	(31		)	3			—			(28		)
Acquisitions through business combinations(1)	—			242			825			1,067
Net foreign currency exchange differences	(418		)	(109		)	9			(518		)
Balance at December 31, 2016	$	2,895		$	2,362		$	2,380		$	7,637
Additions, net of disposals	349			104			95			548
Non-cash disposals	—			—			(14		)	(14		)
Acquisitions through business combinations(1)	—			—			100			100
Net foreign currency exchange differences	227			191			68			486
Balance at December 31, 2017	$	3,471		$	2,657		$	2,629		$	8,757
Accumulated depreciation:
Balance at January 1, 2016	$	(291	)	$	(418	)	$	(159	)	$	(868	)
Depreciation expense	(128		)	(127		)	(99		)	(354		)
Non-cash disposals	—			4			—			4
Net foreign currency exchange differences	36			24			—			60
Balance at December 31, 2016	$	(383	)	$	(517	)	$	(258	)	$	(1,158	)
Depreciation expense	(118		)	(147		)	(117		)	(382		)
Disposals	19			21			—			40
Non-cash disposals	—			—			5			5
Net foreign currency exchange differences	(28		)	(44		)	(13		)	(85		)
Balance at December 31, 2017	$	(510	)	$	(687	)	$	(383	)	$	(1,580	)
Accumulated fair value adjustments:
Balance at January 1, 2016	$	945		$	777		$	226		$	1,948
Fair value adjustments	185			25			125			335
Net foreign currency exchange differences	(87		)	(20		)	1			(106		)
Balance at December 31, 2016	$	1,043		$	782		$	352		$	2,177
Fair value adjustments	137			24			257			418
Net foreign currency exchange differences	78			67			20			165
Balance at December 31, 2017	$	1,258		$	873		$	629		$	2,760
Net book value:
December 31, 2017	$	4,219		$	2,843		$	2,875		$	9,937
December 31, 2016	$	3,555		$	2,627		$	2,474		$	8,656

(1) See Note 5, Acquisition of Business for additional information.

XML

INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2017

Intangible Assets [Abstract]

Disclosure of detailed information about intangible assets

US$ MILLIONS	2017			2016
Cost	$	10,470		$	4,732
Accumulated amortization	(576		)	(267		)
Net intangible assets	$	9,894		$	4,465

Intangible assets are allocated to the following cash generating units:

US$ MILLIONS	Dec. 31, 2017		Dec. 31, 2016
Brazilian regulated gas transmission operation	$	5,134	$	—
Australian regulated terminal	1,957		1,817
Peruvian toll roads	1,144		1,049
Chilean toll roads	1,100		1,054
U.K. port operation	289		265
Indian toll roads	130		136
Other	140		144
Total	$	9,894	$	4,465

Disclosure of reconciliation of changes in intangible assets and goodwill

The following table presents the accumulated amortization for Brookfield Infrastructure’s intangible assets:

US$ MILLIONS	2017			2016
Accumulated amortization at beginning of year	$	(267	)	$	(189	)
Amortization	(289		)	(93		)
Foreign currency translation	(20		)	15
Accumulated amortization at end of year	$	(576	)	$	(267	)

The following table presents the change in the cost balance of intangible assets:

US$ MILLIONS	2017		2016
Cost at beginning of the year	$	4,732	$	3,485
Additions, net of disposals	79		116
Acquisitions through business combinations(1)	5,515		1,189
Non-cash additions	18		—
Foreign currency translation	126		(58		)
Cost at end of year	$	10,470	$	4,732

(1) See Note 5, Acquisition of Business for additional information.

The following table presents the carrying amount for Brookfield Infrastructure’s goodwill:

US$ MILLIONS	2017			2016
Balance at beginning of the year	$	502		$	79
Acquisitions through business combinations(1)	815			431
Foreign currency translation and other	(16		)	(8		)
Balance at end of the year	$	1,301		$	502

(1) See Note 5, Acquisition of Business for additional information.

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GOODWILL (Tables)

12 Months Ended

Dec. 31, 2017

Intangible Assets [Abstract]

Disclosure of reconciliation of changes in intangible assets and goodwill

The following table presents the accumulated amortization for Brookfield Infrastructure’s intangible assets:

US$ MILLIONS	2017			2016
Accumulated amortization at beginning of year	$	(267	)	$	(189	)
Amortization	(289		)	(93		)
Foreign currency translation	(20		)	15
Accumulated amortization at end of year	$	(576	)	$	(267	)

The following table presents the change in the cost balance of intangible assets:

US$ MILLIONS	2017		2016
Cost at beginning of the year	$	4,732	$	3,485
Additions, net of disposals	79		116
Acquisitions through business combinations(1)	5,515		1,189
Non-cash additions	18		—
Foreign currency translation	126		(58		)
Cost at end of year	$	10,470	$	4,732

(1) See Note 5, Acquisition of Business for additional information.

The following table presents the carrying amount for Brookfield Infrastructure’s goodwill:

US$ MILLIONS	2017			2016
Balance at beginning of the year	$	502		$	79
Acquisitions through business combinations(1)	815			431
Foreign currency translation and other	(16		)	(8		)
Balance at end of the year	$	1,301		$	502

(1) See Note 5, Acquisition of Business for additional information.

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INVESTMENT PROPERTIES (Tables)

12 Months Ended

Dec. 31, 2017

Investment property [abstract]

Disclosure of detailed information about investment property

The following table presents the carrying amount for Brookfield Infrastructure’s investment properties:

US$ MILLIONS	2017		2016
Balance at beginning of the year	$	154	$	153
Additions, net of disposals	—		3
Non-cash additions	—		10
Fair value adjustments	23		12
Foreign currency translation	15		(24		)
Balance at end of the year	$	192	$	154

Our partnership has classified all assets below under level 3 of the fair value hierarchy:

Segment	Valuation technique	Significant unobservable inputs	Range of inputs
Transport	Direct Income Capitalization	Capitalization Rate	6% to 14%

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ACCOUNTS PAYABLE AND OTHER (Tables)

12 Months Ended

Dec. 31, 2017

Subclassifications of assets, liabilities and equities [abstract]

Disclosure of accounts payable and other

US$ MILLIONS	Note	2017		2016
Current:
Accounts payable(1)		$	246	$	266
Accrued & other liabilities		400		274
Deferred revenue	(i)	159		108
Provisions		59		64
Total current		$	864	$	712
Non-current:
Deferred revenue	(i)	$	300	$	293
Pension liabilities(2)		100		98
Provisions		95		41
Other liabilities		298		148
Total non-current		$	793	$	580

(1) The average credit period on purchases of goods and services is 30 days. No interest is incurred on trade creditors. Brookfield Infrastructure has financial risk management policies in place to ensure that all payables are paid within the pre-agreed credit terms.

(2) See Note 31, Retirement Benefit Plans for further details.

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FINANCIAL LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2017

Financial Instruments [Abstract]

Disclosure of financial liabilities

The following table provides the break down of financial instruments and their associated financial instrument classifications as at December 31, 2017:

US$ MILLIONS	FVTPL		Available for sale securities		Loans and Receivables/ Other Liabilities
Financial Instrument Classification	(Fair Value)		(Fair Value through OCI)		(Amortized Cost)		Total
MEASUREMENT BASIS
Financial assets
Cash and cash equivalents	$	—	$	—	$	374	$	374
Accounts receivable and other	—		—		838		838
Financial assets (current and non-current)(1)	608		57		172		837
Marketable securities	—		85		—		85
Total	$	608	$	142	$	1,384	$	2,134
Financial liabilities
Corporate borrowings	$	—	$	—	$	2,101	$	2,101
Non-recourse borrowings (current and non-current)	—		—		8,063		8,063
Accounts payable and other	—		—		864		864
Preferred shares(2)	—		—		20		20
Financial liabilities (current and non-current)(1)	440		—		873		1,313
Total	$	440	$	—	$	11,921	$	12,361

(1) Derivative instruments which are elected for hedge accounting totaling $464 million are included in Financial assets and $146 million of derivative instruments are included in Financial liabilities.

(2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

The following table provides the break down of financial instruments and their associated financial instrument classifications as at December 31, 2016:

US$ MILLIONS	FVTPL		Available for sale securities		Loans and Receivables/ Other Liabilities
Financial Instrument Classification	(Fair Value)		(Fair Value through OCI)		(Amortized Cost)		Total
MEASUREMENT BASIS
Financial assets
Cash and cash equivalents	$	—	$	—	$	786	$	786
Accounts receivable and other	—		—		485		485
Financial assets (current and non-current)(1)	893		12		233		1,138
Marketable securities	—		3		—		3
Total	$	893	$	15	$	1,504	$	2,412
Financial liabilities
Corporate borrowings	$	—	$	—	$	1,002	$	1,002
Non-recourse borrowings (current and non-current)	—		—		7,324		7,324
Accounts payable and other	—		—		712		712
Preferred shares(2)	—		—		20		20
Financial liabilities (current and non-current)(1)	381		—		—		381
Total	$	381	$	—	$	9,058	$	9,439

(1) Derivative instruments which are elected for hedge accounting totaling $722 million are included in Financial assets and $185 million of derivative instruments are included in Financial liabilities.

(2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.

US$ MILLIONS	2017		2016
Current:
Foreign currency forward contracts	$	150	$	47
Other financial liabilities	87		182
Total current financial liabilities	$	237	$	229
Non-current:
Interest rate swaps	$	9	$	34
Inflation swaps	84		97
Deferred consideration(1)	916		—
Other financial liabilities	67		21
Total non-current financial liabilities	$	1,076	$	152

(1) The deferred consideration is related to the acquisitions completed during 2017. See Note 5, Acquisition of Businesses for further details.

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BORROWINGS (Tables)

12 Months Ended

Dec. 31, 2017

Financial Instruments [Abstract]

Disclosure of detailed information about borrowings

The current and non-current balances of non-recourse borrowings are as follows:

US$ MILLIONS	Dec. 31, 2017		Dec. 31, 2016
Current	$	364	$	279
Non-current	7,699		7,045
Total	$	8,063	$	7,324

	Maturity	Annual Rate	Currency	2017		2016
Corporate revolving credit facility	June 30, 2022	LIBOR plus 1.2%	US$	789		—
Medium Term Notes(1):
Current:
Public - Canadian	October 10, 2017	3.5%	C$	—		295
Public - Canadian	October 30, 2018	3.0%	C$	99		93
Non-Current:
Public - Canadian	October 30, 2020	3.5%	C$	298		279
Public - Canadian	March 11, 2022	3.5%	C$	358		335
Public - Canadian	February 22, 2024	3.3%	C$	239		—
Public - Canadian	February 22, 2024	3.3%	C$	318		—
Total				$	2,101	$	1,002

(1) See Note 19, Subsidiary Public Issuers for further details.

Principal repayments on non-recourse borrowings due over the next five years and thereafter are as follows:

US$ MILLIONS	Utilities			Transport			Energy			Total
2018	—			143			229			372
2019	87			261			222			570
2020	304			210			69			583
2021	461			230			4			695
2022	440			323			4			767
Thereafter	2,358			2,095			647			5,100
Total Principal repayments	3,650			3,262			1,175			8,087
Deferred financing costs and other	(1		)	(5		)	(18		)	(24		)
Total - Dec. 31, 2017	$	3,649		$	3,257		$	1,157		$	8,063
Total - Dec. 31, 2016	$	3,207		$	3,163		$	954		$	7,324

The weighted average interest rate of non-recourse borrowings are as follows:

US$ MILLIONS	Utilities		Transport		Energy		Total
Dec. 31, 2017	4	%	5	%	5	%	5	%
Dec. 31, 2016	4	%	5	%	5	%	5	%

Principal repayments on non-recourse borrowings in their local currency are as follows:

US$ MILLIONS, except as noted	Dec. 31, 2017		Local Currency		Dec. 31, 2016		Local Currency
Australian dollars	$	1,013	AUD	1,297	$	922	AUD	1,281
British pounds	1,735		GBP	1,283	1,390		GBP	1,125
U.S. dollars	3,087		USD	3,087	3,039		USD	3,039
Chilean Unidad de Fomento(1)	960		UF	22	901		UF	23
Canadian dollars	397		CAD	499	263		CAD	354
Colombian pesos	184		COP	549,384	133		COP	403,030
Peruvian soles	458		PEN	1,483	439		PEN	1,473
Indian rupees	186		INR	11,847	196		INR	13,324
New Zealand dollars	43		NZD	61	41		NZD	59

(1) Chilean Unidad de Fomento is an inflation adjusted unit of account indexed to the Chilean Peso.

Disclosure of reconciliation of liabilities arising from financing activities

Details of the “Changes in liabilities from financing activities”, including both changes arising from cash flows and non-cash changes are as follows:

US$ MILLIONS	2016		Cash Flows		Acquisition		Foreign Exchange Movement		Fair Value Changes		2017
Corporate borrowings	$	1,002	$	1,020	$	—	$	79	$	—	$	2,101
Non-recourse borrowings	7,324		360		—		379		—		8,063

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SUBSIDIARY PUBLIC ISSUERS (Tables)

12 Months Ended

Dec. 31, 2017

Subsidiary Public Issuer [Abstract]

Condensed Financial Information

The following tables set forth consolidated summary financial information for our partnership and the Issuers:

For the year ended December 31, 2017 US$ MILLIONS	Our partnership(2)		The Issuers		Subsidiaries of our partnership other than the Issuers(3)		Consolidating adjustments(4)			Our partnership consolidated
Revenues	$	—	$	—	$	—	$	3,535		$	3,535
Net income attributable to partnership(1)	11		—		125		(11		)	125
For the year ended December 31, 2016
Revenues	$	—	$	—	$	—	$	2,115		$	2,115
Net income attributable to partnership(1)	285		—		487		(285		)	487
For the year ended December 31, 2015
Revenues	$	—	$	—	$	—	$	1,855		$	1,855
Net income attributable to partnership(1)	169		—		301		(169		)	301
As at December 31, 2017
Current assets	$	—	$	—	$	—	$	1,512		$	1,512
Non-current assets	5,514		—		5,987		16,464			27,965
Current liabilities	—		—		—		1,564			1,564
Non-current liabilities	—		1,313		—		13,126			14,439
Non-controlling interests—Redeemable Partnership Units held by Brookfield	—		—		—		2,012			2,012
Non-controlling interests—in operating subsidiaries	—		—		—		5,875			5,875
Preferred unitholders	—		—		—		595			595
As at December 31, 2016
Current assets	$	—	$	3	$	—	$	1,629		$	1,632
Non-current assets	4,937		297		5,248		9,161			19,643
Current liabilities	—		5		—		1,510			1,515
Non-current liabilities	—		1,004		—		9,112			10,116
Non-controlling interests—Redeemable Partnership Units held by Brookfield	—		—		—		1,860			1,860
Non-controlling interests—in operating subsidiaries	—		—		—		2,771			2,771
Preferred unitholders	—		—		—		375			375

(1) Includes net income attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

(2) Includes investments in all subsidiaries of our partnership under the equity method.

(3) Includes investments in all subsidiaries of the Holding LP, Brookfield Infrastructure Holdings (Canada) Inc., Brookfield Infrastructure US Holdings I Corporation and BIP Bermuda Holdings I Limited under the equity method.

(4) Includes elimination of intercompany transactions and balances necessary to present our partnership on a consolidated basis.

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REVENUES (Tables)

12 Months Ended

Dec. 31, 2017

Revenue [abstract]

Disclosure of revenues

The following is an analysis of Brookfield Infrastructure’s assets by reportable operating segment for the years under review:

	Total Attributable to Brookfield Infrastructure
														Contribution from investments in associates			Attributable to non- controlling interest		Working capital adjustment and other		As per IFRS financials on F-5(1)
AS AT DECEMBER 31, 2017 US$ MILLIONS	Utilities		Transport		Energy		Comm. Infrastructure		Corporate			Brookfield Infrastructure
Total assets	$	6,542	$	6,990	$	3,134	$	1,049	$	(1,083	)	$	16,632	$	(3,134	)	$	11,668	$	4,311	$	29,477

	Total Attributable to Brookfield Infrastructure
														Contribution from investments in associates			Attributable to non- controlling interest		Working capital adjustment and other		As per IFRS financials on F-5(1)
AS AT DECEMBER 31, 2016 US$ MILLIONS	Utilities		Transport		Energy		Comm. Infrastructure		Corporate			Brookfield Infrastructure
Total assets	$	4,605	$	6,160	$	3,032	$	933	$	(510	)	$	14,220	$	(2,996	)	$	6,496	$	3,555	$	21,275

(1) The above table provides each segment’s assets in the format that management organizes its segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account Brookfield Infrastructure’s ownership in operations using consolidation and the equity method whereby our partnership either controls or exercises significant influence over the investment respectively. The above table reconciles Brookfield Infrastructure’s proportionate assets to total assets presented on our partnership’s Consolidated Statements of Financial Position by removing net liabilities contained within investments in associates and joint ventures and reflecting the assets attributable to non-controlling interests, and adjusting for working capital assets which are netted against working capital liabilities.

FOR THE YEAR ENDED DECEMBER 31, 2017 US$ MILLIONS	Total attributable to Brookfield Infrastructure
																			Contribution from investments in associates			Attributable to non- controlling interest			As per IFRS financials on F-6(1)
	Utilities			Transport			Energy			Comm. Infrastructure			Corporate			Total
Revenues	$	988		$	1,589		$	559		$	165		$	—		$	3,301		$	(1,624	)	$	1,858		$	3,535
Costs attributed to revenues	(250		)	(895		)	(278		)	(75		)	—			(1,498		)	861			(872		)	(1,509		)
General and administrative costs	—			—			—			—			(239		)	(239		)	—			—			(239		)
Adjusted EBITDA	738			694			281			90			(239		)	1,564			(763		)	986
Other (expense) income	(14		)	(4		)	15			(2		)	45			40			7			(108		)	(61		)
Interest expense	(114		)	(158		)	(87		)	(12		)	(63		)	(434		)	172			(166		)	(428		)
FFO	610			532			209			76			(257		)	1,170			(584		)	712
Depreciation and amortization	(186		)	(312		)	(151		)	(77		)	—			(726		)	382			(327		)	(671		)
Deferred taxes	(52		)	(1		)	11			21			14			(7		)	(22		)	(38		)	(67		)
Mark-to-market on hedging items and other	(59		)	(80		)	(37		)	(9		)	(127		)	(312		)	106			124			(82		)
Share of earnings from associates	—			—			—			—			—			—			118			—			118
Net income attributable to non-controlling interest and preferred unitholders	—			—			—			—			—			—			—			(471		)	(471		)
Net income (loss) attributable to partnership(2)	$	313		$	139		$	32		$	11		$	(370	)	$	125		$	—		$	—		$	125

FOR THE YEAR ENDED DECEMBER 31, 2016 US$ MILLIONS	Total attributable to Brookfield Infrastructure
																			Contribution from investments in associates			Attributable to non- controlling interest			As per IFRS financials on F-6(1)
	Utilities			Transport			Energy			Comm. Infrastructure			Corporate			Total
Revenues	$	684		$	1,247		$	496		$	163		$	—		$	2,590		$	(1,311	)	$	836		$	2,115
Costs attributed to revenues	(160		)	(650		)	(220		)	(72		)	—			(1,102		)	651			(612		)	(1,063		)
General and administrative costs	—			—			—			—			(166		)	(166		)	—			—			(166		)
Adjusted EBITDA	524			597			276			91			(166		)	1,322			(660		)	224
Other income (expense)	5			(17		)	8			(2		)	84			78			16			1			95
Interest expense	(130		)	(157		)	(109		)	(12		)	(48		)	(456		)	190			(126		)	(392		)
FFO	399			423			175			77			(130		)	944			(454		)	99
Depreciation and amortization	(154		)	(253		)	(128		)	(74		)	—			(609		)	328			(166		)	(447		)
Deferred taxes	5			26			(38		)	29			(17		)	5			9			4			18
Mark-to-market on hedging items and other	(88		)	10			81			(5		)	149			147			(131		)	117			133
Share of earnings from associates	—			—			—			—			—			—			248			—			248
Net income attributable to non-controlling interest and preferred unitholders	—			—			—			—			—			—			—			(54		)	(54		)
Net income (loss) attributable to partnership(2)	$	162		$	206		$	90		$	27		$	2		$	487		$	—		$	—		$	487

FOR THE YEAR ENDED DECEMBER 31, 2015 US$ MILLIONS	Total attributable to Brookfield Infrastructure
													Contribution from investments in associates		Attributable to non- controlling interest		As per IFRS financials on F-6(1)
	Utilities		Transport		Energy		Comm. Infrastructure		Corporate		Total
Revenues	698		1,143		349		123		—		2,313		(1,044	)	586		1,855
Costs attributed to revenues	(174	)	(588	)	(183	)	(57	)	—		(1,002	)	546		(342	)	(798	)
General and administrative costs	—		—		—		—		(134	)	(134	)	—		—		(134	)
Adjusted EBITDA	524		555		166		66		(134	)	1,177		(498	)	244
Other income (expense)	5		(15	)	3		—		34		27		13		(4	)	36
Interest expense	(142	)	(142	)	(79	)	(6	)	(27	)	(396	)	144		(115	)	(367	)
FFO	387		398		90		60		(127	)	808		(341	)	125
Depreciation and amortization	(153	)	(217	)	(90	)	(46	)	—		(506	)	246		(115	)	(375	)
Deferred taxes	(8	)	21		14		14		12		53		(41	)	14		26
Mark-to-market on hedging items and other	(16	)	(67	)	(14	)	(13	)	56		(54	)	67		66		79
Share of earnings from associates	—		—		—		—		—		—		69		—		69
Net income attributable to non-controlling interest and preferred unitholders	—		—		—		—		—		—		—		(90	)	(90	)
Net income (loss) attributable to partnership(2)	210		135		—		15		(59	)	301		—		—		301

(1) The above table provides each segment’s results in the format that management organizes its segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account Brookfield Infrastructure’s ownership in operations accounted for using the consolidation and equity methods under IFRS. The above table reconciles Brookfield Infrastructure’s proportionate results to our partnership’s consolidated statements of operating results on a line by line basis by aggregating the components comprising the earnings from our partnership’s investments in associates and reflecting the portion of each line item attributable to non-controlling interests.

(2) Net income (loss) attributable to our partnership includes net income (loss) attributable to non-controlling interests—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

Brookfield Infrastructure’s revenue arises from the rendering of services by the following operating segments:

US$ MILLIONS	2017		2016		2015
Utilities
Regulated Transmission	$	938	$	27	$	43
Regulated Terminal	301		299		330
Regulated Distribution	546		499		491
Transport
Rail	296		270		316
Ports	681		360		220
Toll Roads	313		262		113
Energy
Transmission & Storage	150		141		105
District Energy	310		257		237
	$	3,535	$	2,115	$	1,855

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INTEREST EXPENSE (Tables)

12 Months Ended

Dec. 31, 2017

Analysis of income and expense [abstract]

Disclosure of interest expense

US$ MILLIONS	2017		2016		2015
Interest on corporate facility	$	12	$	12	$	5
Interest on corporate debt	51		39		22
Interest on non-recourse borrowings	361		338		334
Other financing fees	4		3		6
	$	428	$	392	$	367

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NON-WHOLLY OWNED SUBSIDIARIES (Tables)

12 Months Ended

Dec. 31, 2017

Interests In Other Entities [Abstract]

Summarized accounts for non-wholly owned subsidiaries

The following provides information about our partnership’s wholly-owned subsidiaries as of December 31, 2017 and 2016:

			Ownership interest (%)
		Country of incorporation
Defined Name	Name of entity		2017	2016
Transport
Australian rail operation	Arc Infrastructure Holdings No. 1 Pty Ltd	Australia	100	100
Energy
Australian energy distribution operation	Tas Gas Networks Pty Ltd	Australia	100	100

The following table presents details of non-wholly owned subsidiaries of our partnership:

			Ownership Interest (%)		Voting interest (%)
		Country of incorporation
Defined Name	Name of entity		2017	2016	2017	2016
Utilities
U.K. regulated distribution operation	BUUK Infrastructure Holdings Limited	U.K.	80	80	80	80
Australian regulated terminal operation	DBCT Management Pty Ltd(1)	Australia	71	71	100	100
Colombian regulated distribution operation	Empresa de Energia de Boyaca S.A.(1)	Colombia	17	17	100	100
Brazilian regulated gas transmission operation	Nova Transportadora do Sudeste S.A. (1),(2)	Brazil	28	—	90	—
Transport
U.K. ports operation	Brookfield Port Acquisitions (UK) Limited(1)	U.K.	59	59	100	100
Australian ports operation	Linx Cargo Care Group Pty Ltd(1),(3)	Australia	27	27	67	67
Chilean toll roads	Sociedad Concesionaria Vespucio Norte Express S.A.(1)	Chile	51	51	89	89
Indian toll roads	BIF India Holdings Pte Ltd(1),(4)	Singapore	40	40	93	93
Peruvian toll roads	Rutas de Lima S.A.C(1),(5)	Peru	17	17	57	57
Energy
North American gas storage operation(6)	Warwick Gas Storage L.P.(1)	Canada	25	25	100	100
Canadian district energy operation	Enwave Energy Corporation(1)	Canada	25	25	100	100
U.S. district energy operation	Enwave USA(1)	U.S.	40	40	100	100
North American gas storage operation(6)	Lodi Gas Storage(1)	U.S.	40	40	100	100
North American gas storage operation(6)	Rockpoint Gas Storage Partners  L.P.(1),(7)	U.S.	40	40	100	100
Corporate & Other
Holding LP	Brookfield Infrastructure L.P.	Bermuda	70	70	100	100

(1) For the above noted subsidiaries, our partnership has entered into voting arrangements to provide our partnership with the ability to direct the relevant activities of the investee. Our partnership controls these investees given that our partnership is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Our partnership exercises judgment to determine the level of variability that will achieve control over an investee, particularly in circumstances where our partnership’s voting interest differs from its ownership interest in an investee. The following were considered to determine whether our partnership controls these investees: the degree of power (if any) held by other investors, the degree of exposure to variability of each investor, the determination of whether any general partner removal rights are substantive and the purpose and design of the investee.

(2) In April 2017, Brookfield Infrastructure, alongside institutional partners and a Brookfield-sponsored infrastructure fund (the “consortium”), acquired an effective 28% interest in Nova Transportadora do Sudeste S.A. (“NTS”), a Brazilian regulated gas transmission business, for total consideration of $1.6 billion.

(3) In August 2016, Brookfield Infrastructure expanded its ports business to Australia as it acquired a 27% interest in Linx Cargo Care Group Pty Ltd through a Brookfield-sponsored infrastructure fund, along with institutional partners (the “Brookfield Consortium”) for total consideration of $145 million.

(4) In March 2016, Brookfield Infrastructure acquired a 40% interest in a toll road business in India from Gammon Infrastructure Projects Limited for consideration of $42 million through a Brookfield-sponsored infrastructure fund.

(5) In June 2016, Brookfield Infrastructure acquired a 17% interest in Rutas de Lima S.A.C. for total consideration of $127 million through a Brookfield-sponsored infrastructure fund.

(6) North American gas storage operations include Warwick Gas Storage L.P., Lodi Gas Storage and Rockpoint Gas Storage Partners L.P.

(7) In July 2016, Brookfield Infrastructure acquired a40%interest in Rockpoint Gas Storage Partners L.P. for consideration of$227 millionthrough a Brookfield-sponsored infrastructure fund.

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Financial Position:

	As of December 31, 2017
US$ MILLIONS	Current Assets		Non-Current Assets		Current Liabilities		Non-Current Liabilities		Non-Controlling Interest in Operating Subsidiaries		Partnership Capital(1)
Utilities
U.K. regulated distribution	$	107	$	3,550	$	281	$	2,261	$	217	$	898
Australian regulated terminal	38		2,229		34		2,035		62		136
Colombian regulated distribution	68		764		26		438		302		66
Brazilian regulated gas transmission operation	322		5,990		73		2,015		3,081		1,143
Transport
U.K. port operation	44		880		133		353		179		259
Australian port operation	163		628		101		218		346		126
Chilean toll roads	84		1,116		59		989		75		77
Peruvian toll roads	101		1,356		18		674		644		121
Indian toll roads	58		256		30		185		60		39
Energy
North American gas storage operation	206		1,259		244		409		502		310
Canadian district energy operation	75		699		55		394		243		82
U.S. district energy operation	37		799		19		668		78		71
Corporate & Other
Holding LP and other	127		244		392		2,060		84		(2,165		)
Total	$	1,430	$	19,770	$	1,465	$	12,699	$	5,873	$	1,163

(1) Attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

	As of December 31, 2016
US$ MILLIONS	Current Assets		Non-Current Assets		Current Liabilities			Non-Current Liabilities		Non-Controlling Interest in Operating Subsidiaries		Partnership Capital(1)
Utilities
U.K. regulated distribution	$	65	$	2,985	$	154		$	1,919	$	183	$	794
Australian regulated terminal	27		2,162		(9		)	1,926		70		202
Colombian regulated distribution	55		701		27			369		294		66
Transport
U.K. port operation	42		754		108			324		150		214
Australian port operation	142		587		94			205		315		115
Chilean toll roads	102		1,069		50			941		89		91
Brazilian toll roads	42		466		27			—		189		292
Peruvian toll roads	127		1,261		27			635		610		116
Indian toll roads	52		264		36			186		58		36
Energy
North American gas storage	199		1,141		136			478		452		274
Canadian district energy operation	15		570		13			290		209		73
U.S. district energy operation	43		697		62			537		73		68
Corporate & Other
Holding LP and other	631		377		677			810		79		(558		)
Total	$	1,542	$	13,034	$	1,402		$	8,620	$	2,771	$	1,783

(1) Attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, general partner and limited partners.

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Operating Results:

	Year ended December 31, 2017
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income (loss)			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	385	$	21		$	29		$	114		$	118
Australian regulated terminal operation	301		15			3			35			7
Colombian regulated distribution operation	161		12			38			2			7
Brazilian regulated gas transmission operation	938		349			(160		)	146			(72		)
Transport
U.K. port operation	180		8			21			22			29
Australian port operation	501		(7		)	28			(3		)	9
Chilean toll roads	154		—			7			—			8
Peruvian toll roads	103		12			22			2			5
Indian toll roads	57		(2		)	4			(1		)	3
Energy
North American gas storage operation	149		30			74			18			47
Canadian district energy operation	95		(2		)	39			—			13
U.S. district energy operation	131		10			40			7			26
Corporate & Other
Holding LP and other	22		(3		)	1			(349		)	(410		)
Total	$	3,177	$	443		$	146		$	(7	)	$	(210	)

	Year ended December 31, 2016
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income (loss)			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	347	$	12		$	(14	)	$	79		$	(55	)
Australian regulated terminal operation	299		15			(5		)	46			(12		)
Colombian regulated distribution operation	150		10			45			2			10
Transport
U.K. port operation	178		11			(37		)	20			(52		)
Australian port operation	182		(18		)	(24		)	(7		)	(8		)
Chilean toll roads	127		(9		)	7			(10		)	8
Brazilian toll roads	—		6			38			5			25
Peruvian toll roads	97		(8		)	(7		)	(2		)	(1		)
Indian toll roads	39		(3		)	1			(3		)	—
Energy
North American gas storage operation	100		1			—			1			—
Canadian district energy operation	79		(1		)	31			1			11
U.S. district energy operation	111		(6		)	31			—			20
Corporate & Other
Holding LP and other	15		31			1			31			180
Total	$	1,724	$	41		$	67		$	163		$	126

	Year ended December 31, 2015
			Attributable to non-controlling interest						Attributable to unitholders
US$ MILLIONS	Revenue		Net Income			Other Comprehensive Income (loss)			Net Income (loss)			Other Comprehensive Income (loss)
Utilities
U.K. regulated distribution operation	$	339	$	21		$	25		$	122		$	101
Australian regulated terminal operation	330		15			(4		)	68			(9		)
Colombian regulated distribution operation	152		13			(26		)	16			(9		)
Transport
U.K. port operation	220		7			13			22			18
Chilean toll roads	113		(7		)	(20		)	(15		)	(21		)
Energy
North American gas storage operation	20		(8		)	5			(12		)	1
Canadian district energy operation	80		—			6			—			2
U.S. district energy operation	114		(6		)	8			(3		)	5
Corporate & Other
Holding LP and other	21		55			(90		)	5			(32		)
Total	$	1,389	$	90		$	(83	)	$	203		$	56

The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Cash Flows:

	Cash Flow Activities
	Year ended December 31, 2017									Year ended December 31, 2016
US$ MILLIONS	Operating			Investing			Financing			Operating			Investing			Financing
Utilities
U.K. regulated distribution operation	$	220		$	(343	)	$	129		$	244		$	(487	)	$	245
Australian regulated terminal operation	96			(9		)	(87		)	128			(22		)	(106		)
Colombian regulated distribution operation	7			(22		)	26			17			(18		)	—
Brazilian regulated gas transmission operation	819			83			(839		)	—			—			—
Transport
U.K. port operation	46			(40		)	(10		)	33			(24		)	(14		)
Australian port operation	37			(39		)	12			7			(99		)	154
Chilean toll roads	56			(5		)	(88		)	63			(1		)	(99		)
Brazilian toll roads	—			—			—			2			(70		)	70
Peruvian toll roads	46			(67		)	—			29			25			1
Indian toll roads	30			(7		)	(22		)	(7		)	28			(10		)
Energy
North American gas storage operation	55			(9		)	(76		)	(12		)	6			46
Canadian district energy operation	26			(82		)	102			27			(18		)	(13		)
U.S. district energy operation	24			8			(28		)	26			(33		)	9
Corporate & Other
Holding LP and other	(98		)	(5,089		)	4,721			124			(282		)	618
Total	$	1,364		$	(5,621	)	$	3,840		$	681		$	(995	)	$	901

	Cash Flow Activities
	Year ended December 31, 2015
US$ MILLIONS	Operating			Investing			Financing
Utilities
U.K. regulated distribution operation	$	164		$	(242	)	$	92
Australian regulated terminal operation	103			(37		)	(67		)
New England electricity transmission operation	2			—			(2		)
Colombian regulated distribution operation	16			(6		)	(7		)
Transport
U.K. port operation	19			(66		)	61
Australian port operation	—			—			—
Chilean toll roads	70			—			(38		)
Energy
North American gas storage operation	(3		)	(1		)	1
Canadian district energy operation	22			(16		)	(23		)
U.S. district energy operation	21			(13		)	(7		)
Corporate & Other
Holding LP and other	92			(650		)	554
Total	$	506		$	(1,031	)	$	564

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INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2017

Income Taxes [Abstract]

Deferred income tax balances

US$ MILLIONS	2017			2016			2015
Deferred income tax arising on income and expenses recognized in other comprehensive income:
Revaluation of property, plant and equipment	$	(204	)	$	(90	)	$	(130	)
Cash flow hedges	8			8			(15		)
Other	(4		)	7			4
Total income tax expense recognized directly in other comprehensive income	$	(200	)	$	(75	)	$	(141	)

The sources of deferred income tax balances and movements are as follows:

				Recognized in
US$ MILLIONS	Jan. 1, 2017			Net Income			Other Comprehensive Income			Other(1)			Acquisitions (Dispositions)			Dec. 31, 2017
Deferred income tax assets related to non-capital losses and capital losses	$	357		$	(19	)	$	—		$	23		$	—		$	361
Deferred income tax liabilities related to differences in tax and book basis, net	(1,895		)	(48		)	(200		)	(71		)	(930		)	(3,144		)
Net deferred income tax liabilities	$	(1,538	)	$	(67	)	$	(200	)	$	(48	)	$	(930	)	$	(2,783	)

				Recognized in
US$ MILLIONS	Jan. 1, 2016			Net Income		Other Comprehensive Income			Other(1)		Acquisitions (Dispositions)			Dec. 31, 2016
Deferred income tax assets related to non-capital losses and capital losses	$	239		$	17	$	—		$	4	$	97		$	357
Deferred income tax liabilities related to differences in tax and book basis, net	(1,542		)	1		(75		)	52		(331		)	(1,895		)
Net deferred income tax liabilities	$	(1,303	)	$	18	$	(75	)	$	56	$	(234	)	$	(1,538	)

(1) Other items relates to foreign exchange as deferred income taxes are calculated based on the functional currency of each operating entity.

The sources of deferred income tax balances are as follows:

	As of December 31
US$ MILLIONS	2017			2016
Deferred income tax assets
Tax losses carried forward	$	361		$	357
Financial instruments and other	—			125
	$	361		$	482
Deferred income tax liabilities
Property, plant and equipment and investment properties	$	(1,374	)	$	(1,306	)
Intangible assets	(1,761		)	(714		)
Financial instruments and other	$	(9	)	$	—
	$	(3,144	)	$	(2,020	)
Net deferred income tax liabilities	$	(2,783	)	$	(1,538	)
Reflected in the statement of financial position as follows:
Deferred income tax assets	$	66		$	74
Deferred income tax liabilities	(2,849		)	(1,612		)
Net deferred income tax liabilities	$	(2,783	)	$	(1,538	)

Components of income tax expense (recovery)

The major components of income tax expense include the following:

	For the year ended December 31,
US$ MILLIONS	2017			2016			2015
Tax expense (recovery) comprises:
Current income tax expense	$	106		$	33		$	22
Deferred income tax expense (recovery)
Origination and reversal of temporary differences	92			(62		)	4
Changes in tax rates or the imposition of new taxes	(41		)	1			(28		)
Previously unrecognized deferred taxes	16			43			(2		)
Total income tax expense (recovery)	$	173		$	15		$	(4	)
Net income before income tax expense reconciles to income tax expense (recovery) as follows:
Net income before income tax	$	747		$	543		$	387
Income tax expense calculated at the domestic rates applicable to profits in the country concerned	304			77			74
Change in substantively enacted tax rates	(41		)	1			(28		)
Earnings from investments in associates and joint ventures	(12		)	(34		)	(16		)
Portion of gains subject to different tax rates	2			(54		)	2
Taxable income attributable to non-controlling interests	(65		)	(7		)	(25		)
International operations subject to different tax rates	(39		)	(6		)	(8		)
Deferred tax assets not recognized	15			41			4
Permanent differences and other	9			(3		)	(7		)
Income tax expense (recovery) recognized in profit or loss	$	173		$	15		$	(4	)

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PARTNERSHIP CAPITAL (Tables)

12 Months Ended

Dec. 31, 2017

Equity [abstract]

Disclosure of classes of share capital

Preferred Unitholders’ Capital

	Preferred Units
UNITS MILLIONS	2017	2016	2015
Opening balance	20.0	10.0	—
Issued for cash	12.0	10.0	10.0
Ending balance	32.0	20.0	10.0

	Preferred Units
US$ MILLIONS	2017		2016		2015
Opening balance	$	375	$	189	$	—
Unit issuance	220		186		189
Ending balance	$	595	$	375	$	189

Special and Limited Partnership Capital

	Special General Partner Units			Limited Partnership Units					Total
UNITS MILLIONS	2017	2016	2015	2017	2016		2015		2017	2016		2015
Opening balance	1.6	1.6	1.6	259.4	243.2		225.5		261.0	244.8		227.1
Issued for cash	—	—	—	17.2	16.4		20.2		17.2	16.4		20.2
Repurchased and cancelled	—	—	—	—	(0.2	)	(2.5	)	—	(0.2	)	(2.5	)
Ending balance	1.6	1.6	1.6	276.6	259.4		243.2		278.2	261.0		244.8

	Special General Partner						Limited Partners								Total
US$ MILLIONS	2017		2016		2015		2017		2016			2015			2017		2016			2015
Opening balance	$	19	$	19	$	19	$	4,215	$	3,716		$	3,201		$	4,234	$	3,735		$	3,220
Unit issuance	—		—		—		692		505			582			692		505			582
Repurchased and cancelled	—		—		—		—		(6		)	(67		)	—		(6		)	(67		)
Ending balance	$	19	$	19	$	19	$	4,907	$	4,215		$	3,716		$	4,926	$	4,234		$	3,735

Non-controlling interest—Redeemable Partnership Units held by Brookfield

	Non-controlling interest— Redeemable Partnership Units held by Brookfield
UNITS MILLIONS	2017	2016	2015
Opening balance	108.4	100.3	88.1
Issued for cash	7.4	8.1	12.2
Ending balance	115.8	108.4	100.3

	Non-controlling interest— Redeemable Partnership Units held by Brookfield
US$ MILLIONS	2017		2016		2015
Opening balance	$	1,778	$	1,528	$	1,178
Unit issuance	300		250		350
Ending balance	$	2,078	$	1,778	$	1,528

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ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure of analysis of other comprehensive income by item [abstract]

Schedule of accumulated other comprehensive income (loss)

(a) Attributable to Limited Partners’

US$ MILLIONS	Revaluation Surplus			Foreign Currency Translation			Net Investment Hedges			Cash Flow Hedges			Available for sale			Unrealized Actuarial Losses			Equity accounted investments			Accumulated Other Comprehensive Income
Balance at December 31, 2015	$	1,042		$	(889	)	$	99		$	(140	)	$	(9	)	$	(13	)	$	465		$	555
Other comprehensive income (loss)	93			(5		)	117			9			5			(17		)	156			358
Other items (note 26)	(178		)	3			(1		)	1			—			—			(2		)	(177		)
Balance at December 31, 2016	$	957		$	(891	)	$	215		$	(130	)	$	(4	)	$	(30	)	$	619		$	736
Other comprehensive income (loss)	19			56			(187		)	104			4			3			129			128
Balance at December 31, 2017	$	976		$	(835	)	$	28		$	(26	)	$	—		$	(27	)	$	748		$	864

(b) Attributable to General Partner

US$ MILLIONS	Revaluation Surplus			Foreign Currency Translation			Net Investment Hedges			Cash Flow Hedges			Available for sale		Unrealized Actuarial Losses		Equity accounted investments		Accumulated Other Comprehensive Income
Balance at December 31, 2015	$	7		$	(5	)	$	1		$	(1	)	$	—	$	—	$	2	$	4
Other comprehensive income (loss)	1			—			2			—			—		—		1		4
Other items (note 26)	(1		)	—			—			—			—		—		—		(1		)
Balance at December 31, 2016	$	7		$	(5	)	$	3		$	(1	)	$	—	$	—	$	3	$	7
Other comprehensive income (loss)	—			(1		)	(2		)	1			—		—		1		(1		)
Balance at December 31, 2017	$	7		$	(6	)	$	1		$	—		$	—	$	—	$	4	$	6

(c) Attributable to Non-controlling interest—Redeemable Partnership Units held by Brookfield

US$ MILLIONS	Revaluation Surplus			Foreign Currency Translation			Net Investment Hedges			Cash Flow Hedges			Available for sale			Unrealized Actuarial Losses			Equity accounted investments		Accumulated Other Comprehensive Income
Balance at December 31, 2015	$	447		$	(358	)	$	38		$	(61	)	$	(4	)	$	(2	)	$	194	$	254
Other comprehensive income (loss)	38			(4		)	49			4			2			(7		)	65		147
Other items (note 26)	(68		)	(3		)	1			(1		)	(1		)	—			2		(70		)
Balance at December 31, 2016	$	417		$	(365	)	$	88		$	(58	)	$	(3	)	$	(9	)	$	261	$	331
Other comprehensive income (loss)	8			26			(77		)	44			1			1			53		56
Balance at December 31, 2017	$	425		$	(339	)	$	11		$	(14	)	$	(2	)	$	(8	)	$	314	$	387

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RETIREMENT BENEFIT PLANS (Tables)

12 Months Ended

Dec. 31, 2017

Employee Benefits [Abstract]

Disclosure of defined benefit plans

US$ MILLIONS	2017			2016
Plan assets	$	228		$	198
Less accrued benefit obligation	(328		)	(296		)
Accrued benefit liability	$	(100	)	$	(98	)

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DERIVATIVE FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Dec. 31, 2017

Financial Instruments [Abstract]

Notional amount of derivative positions

Brookfield Infrastructure held the following foreign exchange contracts with notional amounts at December 31, 2017 and 2016.

	Notional Amount (U.S. Dollars)				Average Exchange Rate
US$ MILLIONS	2017		2016		2017	2016
Foreign exchange contracts
Australian dollars	$	1,214	$	2,133	0.74	0.73
British pounds	2,069		1,810		1.30	1.30
European Union euros	491		374		1.17	1.14
Brazilian reais	—		144		—	3.37
Canadian dollars	42		27		0.77	0.76
	$	3,816	$	4,488

The aggregate notional amount of Brookfield Infrastructure’s derivative positions at December 31, 2017 and 2016 were as follows:

US$ MILLIONS	Note	2017		2016
Foreign exchange contracts	(a)	$	3,816	$	4,488
Interest rates swaps and other	(b)	5,013		4,416
		$	8,829	$	8,904

Disclosure of change in fair values of derivative positions

The following table presents the change in fair values of Brookfield Infrastructure’s derivative positions during the years ended December 31, 2017 and 2016:

US$ MILLIONS	Unrealized Gains on Derivative Financial Assets		Unrealized Losses on Derivative Financial Liabilities			Net Change During 2017			Net Change During 2016
Foreign exchange derivatives	$	—	$	(305	)	$	(305	)	$	97
Interest rate derivative	132		(69		)	63			15
	$	132	$	(374	)	$	(242	)	$	112

Disclosure of information about terms and conditions of hedging instruments

The following table presents the notional amounts underlying Brookfield Infrastructure’s derivative instruments by term to maturity as at December 31, 2017 and the comparative notional amounts at December 31, 2016, for both derivatives that are classified as fair value through profit or loss and derivatives that qualify for hedge accounting:

	2017								2016
US$ MILLIONS	< 1 year		1 to 5 years		> 5 years		Total Notional Amount		Total Notional Amount
Fair value through profit or loss
Foreign exchange derivatives	$	640	$	807	$	—	$	1,447	$	1,351
Interest rate derivatives
Interest rate and cross currency interest rate swaps	273		484		59		816		752
Inflation linked swaps	—		—		170		170		155
	$	913	$	1,291	$	229	$	2,433	$	2,258
Elected for hedge accounting
Foreign exchange derivatives	$	1,788	$	581	$	—	$	2,369	$	3,136
Interest rate derivatives
Interest rate and cross currency interest rate swaps	99		2,051		1,877		4,027		3,509
	$	1,887	$	2,632	$	1,877	$	6,396	$	6,645

Disclosure of derivatives elected for hedge accounting

The following table classifies derivatives elected for hedge accounting during the years ended December 31, 2017 and 2016 as either cash flow hedges or net investment hedges. Changes in the fair value of the effective portion of the hedges are recorded in either other comprehensive income or net income, depending on the hedge classification, whereas changes in the fair value of the ineffective portion of the hedge are recorded in net income:

	2017							2016
AS AT AND FOR THE YEARS ENDED (MILLIONS)	Notional		Effective Portion			Ineffective Portion		Notional		Effective Portion		Ineffective Portion
Cash flow hedges	$	4,027	$	15		$	—	$	3,509	$	30	$	1
Net investment hedges	2,369		(197		)	—		3,136		53		—
	$	6,396	$	(182	)	$	—	$	6,645	$	83	$	1

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FINANCIAL RISK MANAGEMENT (Tables)

12 Months Ended

Dec. 31, 2017

Financial Instruments [Abstract]

Disclosure of capital structure

The capital structure of Brookfield Infrastructure consists of debt, offset by cash and cash equivalents, and partnership capital comprised of issued capital and accumulated gains.

US$ MILLIONS	2017			2016
Subsidiary and corporate borrowings	$	10,164		$	8,326
Preferred shares	20			20
Cash and cash equivalents(1)	(459		)	(789		)
Net debt	9,725			7,557
Total partnership capital	13,474			9,644
Total capital and net debt	$	23,199		$	17,201
Net debt to capitalization ratio	42		%	44		%

(1) Includes marketable securities.

Disclosure of liquidity management

Brookfield Infrastructure’s corporate liquidity as at December 31 was as follows:

US$ MILLIONS(1)	2017			2016
Corporate cash and financial assets	$	205		$	549
Availability under committed credit facilities	2,475			2,475
Draws on credit facility	(789		)	—
Commitments under credit facility	(106		)	(46		)
Corporate liquidity	$	1,785		$	2,978

(1) Corporate level only.

Disclosure of maturity analysis for financial liabilities

The following tables detail the contractual maturities for Brookfield Infrastructure’s financial liabilities. The tables reflect the undiscounted cash flows of financial liabilities based on the earliest date on which Brookfield Infrastructure can be required to pay. The tables include both interest and principal cash flows:

	Less than 1 year		1-2 years		2-5 years		5+ years		Total contractual cash flows
December 31, 2017
US$ MILLIONS
Accounts payable and other liabilities	$	646	$	45	$	59	$	293	$	1,043
Corporate borrowings	99		—		1,445		557		2,101
Non-recourse borrowings	372		571		2,043		5,101		8,087
Financial liabilities	237		58		930		88		1,313
Interest Expense:
Corporate borrowings	49		47		106		25		227
Non-Recourse borrowings	381		348		864		1,343		2,936

	Less than 1 year		1-2 years		2-5 years		5+ years		Total contractual cash flows
December 31, 2016
US$ MILLIONS
Accounts payable and other liabilities	$	540	$	34	$	26	$	186	$	786
Corporate borrowings	295		93		279		335		1,002
Non-recourse borrowings	286		233		1,708		5,109		7,336
Financial liabilities	229		29		49		74		381
Interest Expense:
Corporate borrowings	40		29		64		14		147
Non-recourse borrowings	361		342		871		1,450		3,024

Disclosure of sensitivity analysis for interest rate and foreign exchange risk

The sensitivity analyses below reflect Brookfield Infrastructure’s exposure to interest rates for both derivative and non-derivative instruments at the reporting date, assuming that a 10 basis point increase or decrease in rates takes place at the beginning of the financial year and is held constant throughout the reporting period. The sensitivity analyses assume a 10 basis point change to reflect the current methodology employed by Brookfield Infrastructure in assessing interest rate risk. Such parallel shift in the yield curve by 10 basis points would have had the following impact, assuming all other variables were held constant:

	2017					2016						2015
US$ MILLIONS	10 bp decrease			10 bp increase		10 bp decrease			10 bp increase			10 bp decrease			10 bp increase
Net income (loss)	$	—		$	—	$	1		$	(1	)	$	2		$	(2	)
Other comprehensive (loss) income	(1		)	1		(1		)	1			(2		)	2

The following tables detail Brookfield Infrastructure’s sensitivity to a 10% increase and decrease in the U.S. dollar against the relevant foreign currencies, with all other variables held constant as at reporting date. 10% is the sensitivity rate used when reporting foreign currency risk internally. The sensitivity analysis is performed as follows:

• Outstanding foreign currency denominated monetary items (excluding foreign exchange derivative contracts) are adjusted at period end for a 10% change in foreign currency rates from the rate at which they are translated;

• Foreign currency derivative contracts are measured as the change in fair value of the derivative as a result of a 10% change in the spot currency rate; and

• The impact on net income results from performing a sensitivity of a 10% change in foreign exchange rates applied to the profit or loss contribution from foreign operations (after considering the impact of foreign exchange derivative contracts).

	Impact on Net Income
	2017						2016						2015
US$ MILLIONS	-10%			10%			-10%			10%			-10%		10%
USD/AUD	$	(18	)	$	18		$	(2	)	$	2		$	8	$	(8	)
USD/EUR	(9		)	9			(8		)	8			5		(5		)
USD/GBP	(3		)	3			(6		)	6			5		(5		)
USD/BRL	21			(21		)	14			(14		)	—		—
USD/CLP	1			(1		)	—			—			1		(1		)
USD/CAD	(1		)	1			(1		)	1			1		(1		)
USD/PEN	—			—			—			—			—		—
USD/INR	—			—			—			—			—		—

	Impact on Partnership Capital
	2017					2016					2015
US$ MILLIONS	-10%		10%			-10%		10%			-10%		10%
USD/AUD	$	—	$	—		$	—	$	—		$	24	$	(24	)
USD/EUR	—		—			35		(35		)	18		(18		)
USD/GBP	—		—			—		—			23		(23		)
USD/CLP	8		(8		)	10		(10		)	13		(13		)
USD/COP	7		(7		)	6		(6		)	6		(6		)
USD/BRL	334		(334		)	172		(172		)	89		(89		)
USD/CAD	—		—			—		—			11		(11		)
USD/PEN	12		(12		)	11		(11		)	—		—
USD/INR	4		(4		)	4		(4		)	—		—

Disclosure of foreign currency exposure

The tables below set out Brookfield Infrastructure’s currency exposure at December 31, 2017, 2016 and 2015:

2017
US$ MILLIONS	USD			AUD		GBP		BRL		CLP		CAD			EUR		COP		PEN		INR		NZD		Total
Assets:
Current assets	$	358		$	276	$	151	$	322	$	85	$	78		$	—	$	68	$	100	$	57	$	17	$	1,512
Non-current assets	4,400			5,770		4,431		8,184		1,117		814			836		764		1,356		256		37		27,965
	$	4,758		$	6,046	$	4,582	$	8,506	$	1,202	$	892		$	836	$	832	$	1,456	$	313	$	54	$	29,477
Liabilities:
Current liabilities	$	641		$	227	$	414	$	73	$	59	$	55		$	—	$	26	$	18	$	30	$	21	$	1,564
Non-current liabilities	3,093			3,983		2,614		2,015		989		443			—		438		673		185		6		14,439
	3,734			4,210		3,028		2,088		1,048		498			—		464		691		215		27		16,003
Non-controlling interest—in operating subsidiaries and preferred unitholders	602			417		396		3,082		75		891			—		302		644		60		1		6,470
Non-controlling interest—Redeemable Partnership Units held by Brookfield	(50		)	407		332		959		23		28			240		19		35		11		8		2,012
Net investment	$	472		$	1,012	$	826	$	2,377	$	56	$	(525	)	$	596	$	47	$	86	$	27	$	18	$	4,992

2016
US$ MILLIONS	USD		AUD		GBP		BRL		CLP		CAD		EUR		COP		PEN		INR		NZD		Total
Assets:
Current assets	$	849	$	214	$	127	$	42	$	102	$	18	$	—	$	55	$	127	$	52	$	46	$	1,632
Non-current assets	3,744		5,542		3,739		1,895		1,070		677		718		700		1,260		265		33		19,643
	$	4,593	$	5,756	$	3,866	$	1,937	$	1,172	$	695	$	718	$	755	$	1,387	$	317	$	79	$	21,275
Liabilities:
Current liabilities	$	833	$	206	$	262	$	23	$	50	$	35	$	—	$	27	$	27	$	36	$	16	$	1,515
Non-current liabilities	1,636		3,764		2,243		—		941		309		—		369		636		186		32		10,116
	2,469		3,970		2,505		23		991		344		—		396		663		222		48		11,631
Non-controlling interest—in operating subsidiaries and preferred unitholders	919		370		333		189		89		261		—		294		610		58		23		3,146
Non-controlling interest—Redeemable Partnership Units held by Brookfield	344		405		294		493		26		26		206		19		33		11		3		1,860
Net investment	$	861	$	1,011	$	734	$	1,232	$	66	$	64	$	512	$	46	$	81	$	26	$	5	$	4,638

2015
US$ MILLIONS	USD		AUD		GBP		BRL		CLP		CAD		EUR		COP		Total
Assets:
Current assets	$	234	$	380	$	470	$	6	$	126	$	291	$	—	$	46	$	1,553
Non-current assets	2,485		5,816		3,927		1,020		1,052		636		618		629		16,182
	$	2,719	$	6,196	$	4,397	$	1,026	$	1,178	$	927	$	618	$	675	$	17,735
Liabilities:
Current liabilities	$	502	$	103	$	434	$	—	$	30	$	122	$	—	$	20	$	1,210
Non-current liabilities	1,714		3,745		2,312		—		902		334		—		342		9,349
	2,216		3,848		2,746		—		932		456		—		362		10,559
Non-controlling interest—in operating subsidiaries and preferred unitholders	377		269		385		141		121		248		—		256		1,797
Non-controlling interest—Redeemable Partnership Units held by Brookfield	36		587		357		249		35		63		175		16		1,518
Net investment	$	90	$	1,492	$	909	$	636	$	90	$	160	$	443	$	41	$	3,861

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CAPITAL MANAGEMENT (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure of Capital Management [Abstract]

Schedule of invested capital

We define Invested Capital as partnership capital removing the impact of the following items: non-controlling interest - in operating subsidiaries, retained earnings or deficit, accumulated other comprehensive income and ownership changes.

1. Estimated based on the discounted cash flow models which we utilize in order to value and measure the performance of our operations.

US$ MILLIONS	2017			2016
Partnership Capital	$	13,474		$	9,644
Remove impact of the following items since inception:
Non-controlling interest - in operating subsidiaries	(5,875		)	(2,771		)
Deficit	1,366			697
Accumulated other comprehensive income	(1,257		)	(1,074		)
Ownership changes	(109		)	(109		)
Invested Capital	$	7,599		$	6,387

The following table presents the change in Invested Capital during year ended December 31, 2017:

US$ MILLIONS	2017		2016
Opening balance	$	6,387	$	5,452
Issuance of preferred units	220		186
Issuance of limited partnership units and redeemable partnership units	992		749
Ending balance	$	7,599	$	6,387
Weighted Average Invested Capital	$	6,885	$	5,592

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SUPPLEMENTAL CASH FLOW INFORMATION (Tables)

12 Months Ended

Dec. 31, 2017

Cash Flow Statement [Abstract]

Disclosure of interest and income taxes paid

	For the Year Ended December 31,
US$ MILLIONS	2017		2016		2015
Interest paid	$	451	$	366	$	332
Income taxes paid	$	132	$	33	$	22

Disclosure of changes in non-cash working capital

Details of “Changes in non-cash working capital, net” on the Consolidated Statements of Cash Flows are as follows:

	For the Year Ended December 31,
US$ MILLIONS	2017			2016		2015
Accounts receivable	$	(31	)	$	31	$	27
Prepayments and other	4			3		1
Accounts payable and other	158			11		(110		)
Changes in non-cash working capital, net	$	131		$	45	$	(82	)

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ORGANIZATION AND DESCRIPTION OF THE BUSINESS (Details) shares in Millions	Sep. 14, 2016 shares
Corporate Information And Statement Of IFRS Compliance [Abstract]
Stock split conversion ratio	1.5
Additional unit received for each unit held in stock split	0.5
Number of shares issued	115

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SUBSIDIARIES (Details) - USD ($) $ in Millions		12 Months Ended
	Apr. 04, 2017	Dec. 31, 2017	Dec. 31, 2016	Aug. 18, 2016	Jul. 19, 2016	Jun. 28, 2016	Mar. 01, 2016
Brazilian regulated gas transmission operation
Disclosure of subsidiaries [line items]
Ownership interest (%)	28.00%
Consideration transferred	$ 1,568
Australian port operation
Disclosure of subsidiaries [line items]
Consideration transferred				$ 145
Percentage of voting equity interests acquired				27.00%
Indian toll roads
Disclosure of subsidiaries [line items]
Consideration transferred							$ 42
Percentage of voting equity interests acquired							40.00%
Peruvian toll roads
Disclosure of subsidiaries [line items]
Consideration transferred						$ 127
Percentage of voting equity interests acquired						17.00%
North American gas storage operation
Disclosure of subsidiaries [line items]
Consideration transferred					$ 227
Percentage of voting equity interests acquired					40.00%
Australian rail operation
Disclosure of subsidiaries [line items]
Ownership interest (%)		100.00%	100.00%
Australian energy distribution operation
Disclosure of subsidiaries [line items]
Ownership interest (%)		100.00%	100.00%
U.K. regulated distribution
Disclosure of subsidiaries [line items]
Ownership interest (%)		80.00%	80.00%
Voting interest (%)		80.00%	80.00%
Australian regulated terminal
Disclosure of subsidiaries [line items]
Ownership interest (%)		71.00%	71.00%
Voting interest (%)		100.00%	100.00%
Colombian regulated distribution
Disclosure of subsidiaries [line items]
Ownership interest (%)		17.00%	17.00%
Voting interest (%)		100.00%	100.00%
Brazilian regulated gas transmission operation
Disclosure of subsidiaries [line items]
Ownership interest (%)		28.00%	0.00%
Voting interest (%)		90.00%	0.00%
U.K. port operation
Disclosure of subsidiaries [line items]
Ownership interest (%)		59.00%	59.00%
Voting interest (%)		100.00%	100.00%
Australian port operation
Disclosure of subsidiaries [line items]
Ownership interest (%)		27.00%	27.00%
Voting interest (%)		67.00%	67.00%
Chilean toll roads
Disclosure of subsidiaries [line items]
Ownership interest (%)		51.00%	51.00%
Voting interest (%)		89.00%	89.00%
Indian toll roads
Disclosure of subsidiaries [line items]
Ownership interest (%)		40.00%	40.00%
Voting interest (%)		93.00%	93.00%
Peruvian toll roads
Disclosure of subsidiaries [line items]
Ownership interest (%)		17.00%	17.00%
Voting interest (%)		57.00%	57.00%
North American gas storage - Warwick Gas Storage L.P.
Disclosure of subsidiaries [line items]
Ownership interest (%)		25.00%	25.00%
Voting interest (%)		100.00%	100.00%
Canadian district energy operation
Disclosure of subsidiaries [line items]
Ownership interest (%)		25.00%	25.00%
Voting interest (%)		100.00%	100.00%
U.S. district energy operation
Disclosure of subsidiaries [line items]
Ownership interest (%)		40.00%	40.00%
Voting interest (%)		100.00%	100.00%
North American gas storage operation - Lodi Gas Storage
Disclosure of subsidiaries [line items]
Ownership interest (%)		40.00%	40.00%
Voting interest (%)		100.00%	100.00%
North American gas storage operation - Rockpoint Gas Storage Partners L.P.
Disclosure of subsidiaries [line items]
Ownership interest (%)		40.00%	40.00%
Voting interest (%)		100.00%	100.00%
Holding LP and other
Disclosure of subsidiaries [line items]
Ownership interest (%)		70.00%	70.00%
Voting interest (%)		100.00%	100.00%

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SIGNIFICANT ACCOUNTING POLICIES (Details)	12 Months Ended
	Dec. 31, 2017
Customer order backlog
Disclosure of detailed information about intangible assets [line items]
Useful life of intangible asset	15 years
Australian regulated terminal
Disclosure of detailed information about intangible assets [line items]
Remaining amortisation period of intangible asset	83 years
Chilean toll roads
Disclosure of detailed information about intangible assets [line items]
Remaining amortisation period of intangible asset	16 years
Indian toll roads
Disclosure of detailed information about intangible assets [line items]
Remaining amortisation period of intangible asset	6 years
Peruvian toll roads
Disclosure of detailed information about intangible assets [line items]
Remaining amortisation period of intangible asset	25 years
Buildings | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Estimated useful lives	70 years
Transmission stations, towers and related fixtures | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Estimated useful lives	40 years
Leasehold improvements | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Estimated useful lives	50 years
Plant and equipment | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Estimated useful lives	40 years
Network systems | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Estimated useful lives	60 years
Track | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Estimated useful lives	40 years
District energy systems | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Estimated useful lives	50 years
Gas storage assets | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Estimated useful lives	50 years

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SEGMENT INFORMATION (Operating Segments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of operating segments [line items]
Revenues	$ 3,535	$ 2,115	$ 1,855
Costs attributed to revenues	(1,509)	(1,063)	(798)
General and administrative costs	(239)	(166)	(134)
Other income (expense)	(61)	95	36
Interest expense	(428)	(392)	(367)
Depreciation and amortization	(671)	(447)	(375)
Deferred taxes	(67)	18	26
Mark-to-market on hedging items and other	(82)	133	79
Share of earnings from associates	118	248	69
Net income attributable to non-controlling interest and preferred unitholders	(471)	(54)	(90)
Net income (loss) attributable to partnership	125	487	301
Reportable segments
Disclosure of operating segments [line items]
Revenues	3,301	2,590	2,313
Costs attributed to revenues	(1,498)	(1,102)	(1,002)
General and administrative costs	(239)	(166)	(134)
Adjusted EBITDA	1,564	1,322	1,177
Other income (expense)	40	78	27
Interest expense	(434)	(456)	(396)
Funds From Operations	1,170	944	808
Depreciation and amortization	(726)	(609)	(506)
Deferred taxes	(7)	5	53
Mark-to-market on hedging items and other	(312)	147	(54)
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest and preferred unitholders	0	0	0
Net income (loss) attributable to partnership	125	487	301
Reportable segments | Utilities
Disclosure of operating segments [line items]
Revenues	988	684	698
Costs attributed to revenues	(250)	(160)	(174)
General and administrative costs	0	0	0
Adjusted EBITDA	738	524	524
Other income (expense)	(14)	5	5
Interest expense	(114)	(130)	(142)
Funds From Operations	610	399	387
Depreciation and amortization	(186)	(154)	(153)
Deferred taxes	(52)	5	(8)
Mark-to-market on hedging items and other	(59)	(88)	(16)
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest and preferred unitholders	0	0	0
Net income (loss) attributable to partnership	313	162	210
Reportable segments | Transport
Disclosure of operating segments [line items]
Revenues	1,589	1,247	1,143
Costs attributed to revenues	(895)	(650)	(588)
General and administrative costs	0	0	0
Adjusted EBITDA	694	597	555
Other income (expense)	(4)	(17)	(15)
Interest expense	(158)	(157)	(142)
Funds From Operations	532	423	398
Depreciation and amortization	(312)	(253)	(217)
Deferred taxes	(1)	26	21
Mark-to-market on hedging items and other	(80)	10	(67)
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest and preferred unitholders	0	0	0
Net income (loss) attributable to partnership	139	206	135
Reportable segments | Energy
Disclosure of operating segments [line items]
Revenues	559	496	349
Costs attributed to revenues	(278)	(220)	(183)
General and administrative costs	0	0	0
Adjusted EBITDA	281	276	166
Other income (expense)	15	8	3
Interest expense	(87)	(109)	(79)
Funds From Operations	209	175	90
Depreciation and amortization	(151)	(128)	(90)
Deferred taxes	11	(38)	14
Mark-to-market on hedging items and other	(37)	81	(14)
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest and preferred unitholders	0	0	0
Net income (loss) attributable to partnership	32	90	0
Reportable segments | Comm. Infrastructure
Disclosure of operating segments [line items]
Revenues	165	163	123
Costs attributed to revenues	(75)	(72)	(57)
General and administrative costs	0	0	0
Adjusted EBITDA	90	91	66
Other income (expense)	(2)	(2)	0
Interest expense	(12)	(12)	(6)
Funds From Operations	76	77	60
Depreciation and amortization	(77)	(74)	(46)
Deferred taxes	21	29	14
Mark-to-market on hedging items and other	(9)	(5)	(13)
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest and preferred unitholders	0	0	0
Net income (loss) attributable to partnership	11	27	15
Reportable segments | Corporate
Disclosure of operating segments [line items]
Revenues	0	0	0
Costs attributed to revenues	0	0	0
General and administrative costs	(239)	(166)	(134)
Adjusted EBITDA	(239)	(166)	(134)
Other income (expense)	45	84	34
Interest expense	(63)	(48)	(27)
Funds From Operations	(257)	(130)	(127)
Depreciation and amortization	0	0	0
Deferred taxes	14	(17)	12
Mark-to-market on hedging items and other	(127)	149	56
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest and preferred unitholders	0	0	0
Net income (loss) attributable to partnership	(370)	2	(59)
Contribution from investments in associates
Disclosure of operating segments [line items]
Revenues	(1,624)	(1,311)	(1,044)
Costs attributed to revenues	861	651	546
General and administrative costs	0	0	0
Adjusted EBITDA	(763)	(660)	(498)
Other income (expense)	7	16	13
Interest expense	172	190	144
Funds From Operations	(584)	(454)	(341)
Depreciation and amortization	382	328	246
Deferred taxes	(22)	9	(41)
Mark-to-market on hedging items and other	106	(131)	67
Share of earnings from associates	118	248	69
Net income attributable to non-controlling interest and preferred unitholders	0	0	0
Net income (loss) attributable to partnership	0	0	0
Attributable to non- controlling interest
Disclosure of operating segments [line items]
Revenues	1,858	836	586
Costs attributed to revenues	(872)	(612)	(342)
General and administrative costs	0	0	0
Adjusted EBITDA	986	224	244
Other income (expense)	(108)	1	(4)
Interest expense	(166)	(126)	(115)
Funds From Operations	712	99	125
Depreciation and amortization	(327)	(166)	(115)
Deferred taxes	(38)	4	14
Mark-to-market on hedging items and other	124	117	66
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest and preferred unitholders	(471)	(54)	(90)
Net income (loss) attributable to partnership	$ 0	$ 0	$ 0

XML

SEGMENT INFORMATION (Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of operating segments [line items]
Assets	$ 29,477	$ 21,275	$ 17,735
Reportable segments
Disclosure of operating segments [line items]
Assets	16,632	14,220
Reportable segments | Utilities
Disclosure of operating segments [line items]
Assets	6,542	4,605
Reportable segments | Transport
Disclosure of operating segments [line items]
Assets	6,990	6,160
Reportable segments | Energy
Disclosure of operating segments [line items]
Assets	3,134	3,032
Reportable segments | Comm. Infrastructure
Disclosure of operating segments [line items]
Assets	1,049	933
Reportable segments | Corporate
Disclosure of operating segments [line items]
Assets	(1,083)	(510)
Contribution from investments in associates
Disclosure of operating segments [line items]
Assets	(3,134)	(2,996)
Attributable to non- controlling interest
Disclosure of operating segments [line items]
Assets	11,668	6,496
Working capital adjustment and other
Disclosure of operating segments [line items]
Assets	$ 4,311	$ 3,555

XML

SEGMENT INFORMATION (Geographic Information) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) customer	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Disclosure of geographical areas [line items]
Revenues	$ 3,535	$ 2,115	$ 1,855
Non-current Assets	27,965	19,643	16,182
Partnership's Revenue | Customer Concentration Risk
Disclosure of geographical areas [line items]
Revenues	$ 938	0
Number of customers | customer	1
Australia
Disclosure of geographical areas [line items]
Revenues	$ 1,093	793	699
Non-current Assets	5,770	5,542
Brazil
Disclosure of geographical areas [line items]
Revenues	938	0	0
Non-current Assets	8,184	1,895
United Kingdom
Disclosure of geographical areas [line items]
Revenues	565	566	635
Non-current Assets	4,431	3,739
Colombia
Disclosure of geographical areas [line items]
Revenues	161	150	152
Non-current Assets	764	700
Canada
Disclosure of geographical areas [line items]
Revenues	193	163	118
Non-current Assets	1,468	1,252
Chile
Disclosure of geographical areas [line items]
Revenues	153	127	113
Non-current Assets	2,045	1,748
Europe
Disclosure of geographical areas [line items]
Non-current Assets	836	718
United States of America
Disclosure of geographical areas [line items]
Revenues	183	154	138
Non-current Assets	2,818	2,470
India
Disclosure of geographical areas [line items]
Revenues	57	39	0
Non-current Assets	256	265
Peru
Disclosure of geographical areas [line items]
Revenues	103	97	0
Non-current Assets	1,356	1,281
New Zealand
Disclosure of geographical areas [line items]
Revenues	89	26	$ 0
Non-current Assets	$ 37	$ 33

XML

ACQUISITION OF BUSINESSES - Additional Information (Details) - USD ($)		3 Months Ended		12 Months Ended
	Apr. 04, 2017	Sep. 30, 2016	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016		Dec. 31, 2015		Aug. 18, 2016	Jul. 19, 2016	Jun. 28, 2016	Mar. 01, 2016
Disclosure of detailed information about business combination [line items]
Increase through business combinations, deferred tax liability				$ 930,000,000	$ 234,000,000
Goodwill				1,301,000,000	502,000,000
Revenues				3,535,000,000	2,115,000,000		$ 1,855,000,000
Net income (loss)				574,000,000	528,000,000	[1]	$ 391,000,000	[1]
Deferred income tax liability				2,849,000,000	1,612,000,000
Brazilian regulated gas transmission operation
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest in subsidiary	28.00%
Consideration transferred	$ 1,568,000,000
Cash	1,306,000,000
Deferred consideration	$ 262,000,000
Period of payable from close of transaction	5 years
Acquisition-related costs recognised as expense for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination				8,000,000
Increase through business combinations, deferred tax liability	$ 893,000,000
Goodwill	804,000,000
Revenues				938,000,000
Net income (loss)				495,000,000
Brazilian regulated gas transmission operation | Consortium
Disclosure of detailed information about business combination [line items]
Consideration transferred	5,100,000,000
Cash	4,200,000,000
Deferred consideration	$ 900,000,000
Aggregated individually immaterial business combinations
Disclosure of detailed information about business combination [line items]
Consideration transferred				27,000,000
Cash				9,000,000
Goodwill				11,000,000
Revenues				24,000,000
Net income (loss)				4,000,000
Liabilities incurred				$ 18,000,000
Australian port operation
Disclosure of detailed information about business combination [line items]
Consideration transferred									$ 145,000,000
Cash									13,000,000
Acquisition-related costs recognised as expense for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination					17,000,000
Goodwill									199,000,000
Goodwill not deductible tax purposes									$ 0
Ownership interest			20.00%
Other income		$ 123,000,000
Reclassification adjustments on available-for-sale financial assets, net of tax		44,000,000
Reclassification adjustments on exchange differences on translation, net of tax		$ 79,000,000
Percentage of voting equity interests acquired									27.00%
Common shares of Asciano Limited									$ 132,000,000
Discount rate				15.00%
Terminal value multiple				8.9
Discrete cash flow period				10 years
Australian port operation | Brookfield Consortium
Disclosure of detailed information about business combination [line items]
Cash									63,000,000
Common shares of Asciano Limited									$ 442,000,000
North American gas storage operation
Disclosure of detailed information about business combination [line items]
Consideration transferred										$ 227,000,000
Business combinations, Pre-existing interest, Senior notes										141,000,000
Cash										67,000,000
Acquisition-related costs recognised as expense for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination					11,000,000
Goodwill										82,000,000
Goodwill not deductible tax purposes										$ 0
Percentage of voting equity interests acquired										40.00%
Deferred income tax liability										$ 82,000,000
North American gas storage operation | Working Capital Credit Facility
Disclosure of detailed information about business combination [line items]
Current borrowings										$ 19,000,000
Peruvian toll roads
Disclosure of detailed information about business combination [line items]
Consideration transferred											$ 127,000,000
Cash											118,000,000
Acquisition-related costs recognised as expense for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination					1,000,000
Goodwill											139,000,000
Goodwill not deductible tax purposes											$ 0
Percentage of voting equity interests acquired											17.00%
Liabilities incurred					9,000,000						$ 9,000,000
Deferred income tax liability											139,000,000
Peruvian toll roads | Brookfield Sponsored Infrastructure Fund
Disclosure of detailed information about business combination [line items]
Cash											400,000,000
Liabilities incurred											$ 30,000,000
Indian toll roads
Disclosure of detailed information about business combination [line items]
Consideration transferred												$ 42,000,000
Cash												$ 42,000,000
Acquisition-related costs recognised as expense for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination					$ 2,000,000
Percentage of voting equity interests acquired												40.00%
Deferred income tax assets												$ 10,000,000
Brazilian Regulated Gas Transmission Operation and other insignificant transactions
Disclosure of detailed information about business combination [line items]
Pro forma revenue				$ 3,911,000,000
Pro forma net income				$ 751,000,000

[1] Certain net income allocations have been reclassified to provide comparability with the current year consolidated statements of partnership capital.

XML

ACQUISITION OF BUSINESSES - Purchase Price Allocation (Details)			3 Months Ended	22 Months Ended
	Jul. 19, 2016 USD ($)	Jun. 28, 2016 USD ($) payment	Dec. 31, 2016 USD ($)	Jul. 18, 2016 USD ($)	Dec. 31, 2017 USD ($)	Apr. 04, 2017 USD ($)	Aug. 18, 2016 USD ($)	Mar. 01, 2016 USD ($)
Fair value of assets and liabilities acquired
Goodwill			$ 502,000,000		$ 1,301,000,000
Restricted cash and cash equivalents			84,000,000		33,000,000
Brazilian regulated gas transmission operation
Consideration transferred
Cash						$ 1,306,000,000
Deferred consideration, acquisition-date fair value						262,000,000
Total consideration						1,568,000,000
Fair value of assets and liabilities acquired
Cash and cash equivalents						89,000,000
Accounts receivable and other						317,000,000
Intangible assets						5,515,000,000
Goodwill						804,000,000
Accounts payable and other						(202,000,000)
Deferred income tax and other liabilities						(946,000,000)
Net assets acquired before non-controlling interest						5,577,000,000
Non-controlling interest						(4,009,000,000)
Net assets acquired						$ 1,568,000,000
Deferred consideration, interest accrual						3.35%
Aggregated individually immaterial business combinations
Consideration transferred
Cash					9,000,000
Consideration payable					18,000,000
Total consideration					27,000,000
Fair value of assets and liabilities acquired
Accounts receivable and other					28,000,000
Property, plant and equipment					100,000,000
Goodwill					11,000,000
Deferred income tax and other liabilities					(31,000,000)
Non-recourse borrowings					(30,000,000)
Net assets acquired before non-controlling interest					78,000,000
Non-controlling interest					(51,000,000)
Net assets acquired					$ 27,000,000
Australian port operation
Consideration transferred
Cash							$ 13,000,000
Common shares of Asciano Limited							132,000,000
Total consideration							145,000,000
Fair value of assets and liabilities acquired
Cash and cash equivalents							12,000,000
Accounts receivable and other							233,000,000
Assets classified as held for sale							115,000,000
Property, plant and equipment							225,000,000
Intangible assets							69,000,000
Goodwill							199,000,000
Liabilities directly associated with assets classified as held for sale							(58,000,000)
Deferred income tax and other liabilities							(109,000,000)
Non-recourse borrowings							(181,000,000)
Net assets acquired before non-controlling interest							505,000,000
Non-controlling interest							(360,000,000)
Net assets acquired							$ 145,000,000
Gain (loss) on disposition of business			0
North American gas storage operation
Consideration transferred
Cash	$ 67,000,000
Senior notes	141,000,000
Working capital credit facility	19,000,000
Total consideration	227,000,000
Fair value of assets and liabilities acquired
Cash and cash equivalents	15,000,000
Accounts receivable and other	99,000,000
Inventory	39,000,000
Property, plant and equipment	825,000,000
Goodwill	82,000,000
Deferred income tax and other liabilities	(148,000,000)
Non-recourse borrowings	(337,000,000)
Net assets acquired before non-controlling interest	575,000,000
Non-controlling interest	(348,000,000)
Net assets acquired	227,000,000
North American gas storage operation | Credit facility
Consideration transferred
Senior notes	117,000,000
Fair value of assets and liabilities acquired
Notes and debentures issued	104,000,000
Other operating income (expense)	24,000,000			$ 13,000,000
North American gas storage operation | Brookfield Sponsored Partnership
Consideration transferred
Cash	170,000,000
North American gas storage operation | Brookfield Sponsored Partnership | Senior notes
Consideration transferred
Consideration payable	357,000,000
North American gas storage operation | Brookfield Sponsored Partnership | Credit facility
Consideration transferred
Consideration payable	$ 48,000,000
Peruvian toll roads
Consideration transferred
Cash		$ 118,000,000
Consideration payable		9,000,000	$ 9,000,000
Total consideration		127,000,000
Fair value of assets and liabilities acquired
Cash and cash equivalents		115,000,000
Accounts receivable and other		121,000,000
Property, plant and equipment		6,000,000
Intangible assets		973,000,000
Goodwill		139,000,000
Deferred income tax and other liabilities		(160,000,000)
Non-recourse borrowings		(441,000,000)
Net assets acquired before non-controlling interest		753,000,000
Non-controlling interest		(626,000,000)
Net assets acquired		$ 127,000,000
Purchase price number of payments | payment		4
Duration of service concession agreement		30 years
Restricted cash and cash equivalents		$ 114,000,000
Indian toll roads
Consideration transferred
Cash								$ 42,000,000
Total consideration								42,000,000
Fair value of assets and liabilities acquired
Accounts receivable and other								38,000,000
Property, plant and equipment								7,000,000
Financial assets								142,000,000
Intangible assets								147,000,000
Accounts payable and other								(38,000,000)
Non-recourse borrowings								(202,000,000)
Deferred income tax assets								10,000,000
Net assets acquired before non-controlling interest								104,000,000
Non-controlling interest								(62,000,000)
Net assets acquired								$ 42,000,000

XML

FAIR VALUE OF FINANCIAL INSTRUMENTS - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities (current and non-current)	$ 1,313	$ 381
Recurring fair value measurement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	750	908
Financial liabilities (current and non-current)	440	381
Cash flow hedges | Financial assets at fair value through other comprehensive income, category
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Gains (losses) on hedging instrument, fair value hedges	50	(14)	$ (41)
Derivative financial assets	447	464
Hedges of net investment in foreign operations | Financial assets at fair value through other comprehensive income, category
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Gains (losses) on hedging instrument, fair value hedges	(202)	70	(131)
Derivative financial assets		73
Net foreign exchange loss	64
Net foreign exchange gain		$ 99	$ 220
Derivative financial liabilities	$ 129

XML

FAIR VALUE OF FINANCIAL INSTRUMENTS - Allocation of Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Financial assets	$ 2,134	$ 2,412
Disclosure of financial liabilities [line items]
Financial liabilities	12,361	9,439
FVTPL (Fair Value)
Disclosure of financial liabilities [line items]
Financial liabilities	440	381
Available for sale securities (Fair Value through OCI)
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Loans and Receivables/Other Liabilities (Amortized Cost)
Disclosure of financial liabilities [line items]
Financial liabilities	11,921	9,058
FVTPL (Fair Value)
Disclosure of financial assets [line items]
Financial assets	608	893
Available for sale securities (Fair Value through OCI)
Disclosure of financial assets [line items]
Financial assets	142	15
Loans and Receivables/Other Liabilities (Amortized Cost)
Disclosure of financial assets [line items]
Financial assets	1,384	1,504
Corporate borrowings
Disclosure of financial liabilities [line items]
Financial liabilities	2,101	1,002
Corporate borrowings | FVTPL (Fair Value)
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Corporate borrowings | Available for sale securities (Fair Value through OCI)
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Corporate borrowings | Loans and Receivables/Other Liabilities (Amortized Cost)
Disclosure of financial liabilities [line items]
Financial liabilities	2,101	1,002
Non-recourse borrowings (current and non-current)
Disclosure of financial liabilities [line items]
Financial liabilities	8,063	7,324
Non-recourse borrowings (current and non-current) | FVTPL (Fair Value)
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Non-recourse borrowings (current and non-current) | Available for sale securities (Fair Value through OCI)
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Non-recourse borrowings (current and non-current) | Loans and Receivables/Other Liabilities (Amortized Cost)
Disclosure of financial liabilities [line items]
Financial liabilities	8,063	7,324
Accounts payable and other
Disclosure of financial liabilities [line items]
Financial liabilities	864	712
Accounts payable and other | FVTPL (Fair Value)
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Accounts payable and other | Available for sale securities (Fair Value through OCI)
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Accounts payable and other | Loans and Receivables/Other Liabilities (Amortized Cost)
Disclosure of financial liabilities [line items]
Financial liabilities	864	712
Preferred shares
Disclosure of financial liabilities [line items]
Financial liabilities	20	20
Preferred shares | FVTPL (Fair Value)
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Preferred shares | Available for sale securities (Fair Value through OCI)
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Preferred shares | Loans and Receivables/Other Liabilities (Amortized Cost)
Disclosure of financial liabilities [line items]
Financial liabilities	20	20
Financial liabilities (current and non-current)
Disclosure of financial liabilities [line items]
Financial liabilities	1,313	381
Financial liabilities (current and non-current) | FVTPL (Fair Value)
Disclosure of financial liabilities [line items]
Financial liabilities	440	381
Financial liabilities (current and non-current) | Available for sale securities (Fair Value through OCI)
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Financial liabilities (current and non-current) | Loans and Receivables/Other Liabilities (Amortized Cost)
Disclosure of financial liabilities [line items]
Financial liabilities	873	0
Cash and cash equivalents
Disclosure of financial assets [line items]
Financial assets	374	786
Cash and cash equivalents | FVTPL (Fair Value)
Disclosure of financial assets [line items]
Financial assets	0	0
Cash and cash equivalents | Available for sale securities (Fair Value through OCI)
Disclosure of financial assets [line items]
Financial assets	0	0
Cash and cash equivalents | Loans and Receivables/Other Liabilities (Amortized Cost)
Disclosure of financial assets [line items]
Financial assets	374	786
Accounts receivable and other
Disclosure of financial assets [line items]
Financial assets	838	485
Accounts receivable and other | FVTPL (Fair Value)
Disclosure of financial assets [line items]
Financial assets	0	0
Accounts receivable and other | Available for sale securities (Fair Value through OCI)
Disclosure of financial assets [line items]
Financial assets	0	0
Accounts receivable and other | Loans and Receivables/Other Liabilities (Amortized Cost)
Disclosure of financial assets [line items]
Financial assets	838	485
Financial assets (current and non-current)
Disclosure of financial assets [line items]
Financial assets	837	1,138
Financial assets (current and non-current) | FVTPL (Fair Value)
Disclosure of financial assets [line items]
Financial assets	608	893
Financial assets (current and non-current) | Available for sale securities (Fair Value through OCI)
Disclosure of financial assets [line items]
Financial assets	57	12
Financial assets (current and non-current) | Loans and Receivables/Other Liabilities (Amortized Cost)
Disclosure of financial assets [line items]
Financial assets	172	233
Marketable securities
Disclosure of financial assets [line items]
Financial assets	85	3
Marketable securities | FVTPL (Fair Value)
Disclosure of financial assets [line items]
Financial assets	0	0
Marketable securities | Available for sale securities (Fair Value through OCI)
Disclosure of financial assets [line items]
Financial assets	85	3
Marketable securities | Loans and Receivables/Other Liabilities (Amortized Cost)
Disclosure of financial assets [line items]
Financial assets	$ 0	$ 0

XML

FAIR VALUE OF FINANCIAL INSTRUMENTS FAIR VALUE OF FINANCIAL INSTRUMENTS - Allocation of Financial Instruments - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Preferred shares	$ 20	$ 20
Financial assets (current and non-current)
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial instruments designated as hedging instruments, at fair value	464	722
Financial liabilities (current and non-current)
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial instruments designated as hedging instruments, at fair value	$ 146	$ 185

XML

FAIR VALUE OF FINANCIAL INSTRUMENTS - Carrying and Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Financial assets, Carrying	$ 2,134	$ 2,412
Financial assets, Fair Value	2,134	2,412
Disclosure of financial liabilities [line items]
Financial liabilities, Carrying	12,361	9,439
Financial liabilities, Fair Value	12,702	9,614
Corporate borrowings
Disclosure of financial liabilities [line items]
Financial liabilities, Carrying	2,101	1,002
Financial liabilities, Fair Value	2,113	1,023
Non-recourse borrowings
Disclosure of financial liabilities [line items]
Financial liabilities, Carrying	8,063	7,324
Financial liabilities, Fair Value	8,392	7,478
Accounts payable and other (current and non-current)
Disclosure of financial liabilities [line items]
Financial liabilities, Carrying	864	712
Financial liabilities, Fair Value	864	712
Preferred shares
Disclosure of financial liabilities [line items]
Financial liabilities, Carrying	20	20
Financial liabilities, Fair Value	20	20
Financial liabilities (current and non-current)
Disclosure of financial liabilities [line items]
Financial liabilities, Carrying	1,313	381
Financial liabilities, Fair Value	1,313	381
Cash and cash equivalents
Disclosure of financial assets [line items]
Financial assets, Carrying	374	786
Financial assets, Fair Value	374	786
Accounts receivable and other
Disclosure of financial assets [line items]
Financial assets, Carrying	838	485
Financial assets, Fair Value	838	485
Financial assets (current and non-current)
Disclosure of financial assets [line items]
Financial assets, Carrying	837	1,138
Financial assets, Fair Value	837	1,138
Marketable securities
Disclosure of financial assets [line items]
Financial assets, Carrying	85	3
Financial assets, Fair Value	$ 85	$ 3

XML

FAIR VALUE OF FINANCIAL INSTRUMENTS - Valuation Techniques and Significant Inputs (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities (current and non-current)	$ 1,313	$ 381
Recurring fair value measurement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	750	908
Financial liabilities (current and non-current)	440	381
Recurring fair value measurement | Level 1
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities (current and non-current)	0	0
Recurring fair value measurement | Level 2
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities (current and non-current)	351	335
Recurring fair value measurement | Level 3
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities (current and non-current)	89	46
Recurring fair value measurement | Foreign currency forward contracts | Level 2 | Discounted cash flow
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities (current and non-current)	196	48
Recurring fair value measurement | Interest rate swaps & other | Level 2 | Discounted cash flow
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities (current and non-current)	155	287
Recurring fair value measurement | Other contracts | Level 3 | Discounted cash flow
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities (current and non-current)	89	46
Recurring fair value measurement | Marketable securities | Level 1
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	85	3
Recurring fair value measurement | Marketable securities | Level 1 | Quoted bid prices
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	85	3
Recurring fair value measurement | Marketable securities | Level 2
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	0	0
Recurring fair value measurement | Marketable securities | Level 3
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	0	0
Recurring fair value measurement | Foreign currency forward contracts | Level 2 | Discounted cash flow
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	236	210
Recurring fair value measurement | Interest rate swaps & other | Level 2 | Discounted cash flow
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	381	653
Recurring fair value measurement | Other contracts | Level 3 | Discounted cash flow
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	$ 48	$ 42

XML

FAIR VALUE OF FINANCIAL INSTRUMENTS - Fair Value Inputs (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities (current and non-current)	$ 1,313	$ 381
Recurring fair value measurement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	750	908
Financial liabilities (current and non-current)	440	381
Recurring fair value measurement | Level 1
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities (current and non-current)	0	0
Recurring fair value measurement | Level 1 | Marketable securities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	85	3
Recurring fair value measurement | Level 1 | Financial assets (current and non-current)
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	0	0
Recurring fair value measurement | Level 2
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities (current and non-current)	351	335
Recurring fair value measurement | Level 2 | Marketable securities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	0	0
Recurring fair value measurement | Level 2 | Financial assets (current and non-current)
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	617	863
Recurring fair value measurement | Level 3
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities (current and non-current)	89	46
Recurring fair value measurement | Level 3 | Marketable securities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	0	0
Recurring fair value measurement | Level 3 | Financial assets (current and non-current)
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	$ 48	$ 42

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CASH AND CASH EQUIVALENTS (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash and cash equivalents [abstract]
Cash	$ 258	$ 652
Restricted cash	33	84
Cash equivalents	83	50
Total cash and cash equivalents	$ 374	$ 786	$ 199	$ 189

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FINANCIAL ASSETS (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Current:
Foreign currency forward contracts	$ 10	$ 132
Loans and receivables	43	73
Marketable securities	85	3
Other	54	33
Total current	192	241
Non-current:
Cross currency interest rate swaps	243	589
Loans and receivables	210	172
Foreign currency forward contracts	226	78
Other	51	61
Total non-current	$ 730	$ 900

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ACCOUNTS RECEIVABLE AND OTHER (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Current:
Accounts receivable	$ 738	$ 395
Prepayments & other assets	100	109
Total current	838	504
Non-current:
Tax recovery receivables	52	55
Other assets	221	110
Total non-current	$ 273	$ 165

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INVENTORY (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current:
Natural gas inventory	$ 84,000,000	$ 82,000,000
Raw materials and consumables	24,000,000	19,000,000
Carrying amount of inventories	108,000,000	101,000,000
Cost of inventories recognised as expense during period	418,000,000	154,000,000	$ 0
Inventory impairment	$ 0	$ 0	$ 0

XML

INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Additional Information (Details) - USD ($)		1 Months Ended				3 Months Ended	12 Months Ended
	Dec. 31, 2017	Aug. 31, 2017	May 31, 2017	Aug. 31, 2016	Apr. 30, 2016	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure Of Associates And Joint Ventures [Line Items]
Cash payment for increase in investment interest							$ 620,000,000	$ 887,000,000	$ 681,000,000
Share of earnings from investments in associates and joint ventures							118,000,000	248,000,000	$ 69,000,000
Acquisitions							$ 620,000,000	1,108,000,000
Brazilian toll roads
Disclosure Of Associates And Joint Ventures [Line Items]
Gain (loss) on investment		$ 0
Proportion of ownership interest in subsidiary							8.00%
Decrease in investments in subsidiaries, joint ventures and associates						$ 177,000,000
Cash payment for increase in investment interest							$ 349,000,000
Ownership Interest	45.00%
Transport and Energy Operations
Disclosure Of Associates And Joint Ventures [Line Items]
Share of earnings from investments in associates and joint ventures								$ 195,000,000
North American natural gas transmission operation
Disclosure Of Associates And Joint Ventures [Line Items]
Acquisitions			$ 200,000,000		$ 312,000,000
Australian port operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership Interest				13.00%
Acquisitions				$ 202,000,000
Voting Interest				50.00%

XML

INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Ownership and Voting Interest (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure Of Associates And Joint Ventures [Line Items]
Investments accounted for using equity method	$ 5,572	$ 4,727	$ 2,973
Brazillian toll road
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and Voting Interest	45.00%	49.00%
Investments accounted for using equity method	$ 1,715	$ 1,505
North American natural gas transmission operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and Voting Interest	50.00%	50.00%
Investments accounted for using equity method	$ 1,013	$ 806
Chilean electricity transmission operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and Voting Interest	28.00%	28.00%
Investments accounted for using equity method	$ 930	$ 699
European telecommunications infrastructure operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and Voting Interest	21.00%	21.00%
Investments accounted for using equity method	$ 614	$ 536
Brazilian rail business
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and Voting Interest	11.00%	11.00%
Investments accounted for using equity method	$ 436	$ 376
Australian port operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and Voting Interest	13.00%	13.00%
Investments accounted for using equity method	$ 191	$ 181
Other
Disclosure Of Associates And Joint Ventures [Line Items]
Investments accounted for using equity method	$ 673	$ 624
Other | Bottom of range
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and Voting Interest	11.00%	11.00%
Other | Top of range
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and Voting Interest	50.00%	50.00%

XML

INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Change in Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of changes in associates and joint ventures
Balance at beginning of year	$ 4,727	$ 2,973
Share of earnings for the year	118	248	$ 69
Foreign currency translation and other	167	219
Share of other comprehensive income	183	225
Distributions	(66)	(46)
Disposition of interest	(177)	0
Acquisitions	620	1,108
Balance at end of year	$ 5,572	$ 4,727	$ 2,973

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INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Balance Sheet Impact of Investments (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	$ 1,512	$ 1,632	$ 1,553
Non-Current Assets	27,965	19,643	16,182
Total assets	29,477	21,275	17,735
Current Liabilities	1,564	1,515	1,210
Non-Current Liabilities	14,439	10,116	9,349
Total liabilities	16,003	11,631	$ 10,559
Associates and Joint Ventures
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	2,822	1,925
Non-Current Assets	37,553	33,509
Total assets	40,375	35,434
Current Liabilities	2,887	4,016
Non-Current Liabilities	17,688	15,053
Total liabilities	20,575	19,069
Total Net Assets	19,800	16,365
Attributable to Other Ownership Interests	14,228	11,638
Attributable to Partnership's Share	5,572	4,727
Brazilian toll roads
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	304	263
Non-Current Assets	5,769	4,977
Total assets	6,073	5,240
Current Liabilities	602	823
Non-Current Liabilities	2,102	1,665
Total liabilities	2,704	2,488
Total Net Assets	3,369	2,752
Attributable to Other Ownership Interests	1,654	1,247
Attributable to Partnership's Share	1,715	1,505
North American natural gas transmission operation
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	139	122
Non-Current Assets	4,741	5,767
Total assets	4,880	5,889
Current Liabilities	139	1,353
Non-Current Liabilities	2,716	2,925
Total liabilities	2,855	4,278
Total Net Assets	2,025	1,611
Attributable to Other Ownership Interests	1,012	805
Attributable to Partnership's Share	1,013	806
Chilean electricity transmission operation
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	280	221
Non-Current Assets	7,122	5,519
Total assets	7,402	5,740
Current Liabilities	181	142
Non-Current Liabilities	3,874	3,234
Total liabilities	4,055	3,376
Total Net Assets	3,347	2,364
Attributable to Other Ownership Interests	2,417	1,665
Attributable to Partnership's Share	930	699
European telecommunications infrastructure operation
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	464	328
Non-Current Assets	6,281	5,437
Total assets	6,745	5,765
Current Liabilities	561	443
Non-Current Liabilities	2,968	2,528
Total liabilities	3,529	2,971
Total Net Assets	3,216	2,794
Attributable to Other Ownership Interests	2,602	2,258
Attributable to Partnership's Share	614	536
Brazilian rail business
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	743	460
Non-Current Assets	6,131	5,265
Total assets	6,874	5,725
Current Liabilities	515	674
Non-Current Liabilities	2,405	1,645
Total liabilities	2,920	2,319
Total Net Assets	3,954	3,406
Attributable to Other Ownership Interests	3,518	3,030
Attributable to Partnership's Share	436	376
Australian port operation
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	198	171
Non-Current Assets	2,281	2,166
Total assets	2,479	2,337
Current Liabilities	24	66
Non-Current Liabilities	1,332	1,229
Total liabilities	1,356	1,295
Total Net Assets	1,123	1,042
Attributable to Other Ownership Interests	932	861
Attributable to Partnership's Share	191	181
Other
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	694	360
Non-Current Assets	5,228	4,378
Total assets	5,922	4,738
Current Liabilities	865	515
Non-Current Liabilities	2,291	1,827
Total liabilities	3,156	2,342
Total Net Assets	2,766	2,396
Attributable to Other Ownership Interests	2,093	1,772
Attributable to Partnership's Share	$ 673	$ 624

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INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Income Statement Impact of Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016		Dec. 31, 2015
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	$ 3,535	$ 2,115		$ 1,855
Net income	574	528	[1]	391	[1]
OCI	323	576		(202)
Comprehensive income	897	1,104		189
Associates and Joint Ventures
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	6,469	4,818		4,312
Net income	378	570		326
OCI	1,750	2,155		(1,647)
Comprehensive income	2,128	2,725		(1,321)
Attributable to Other Ownership Interests	1,665	2,033		(977)
Attributable to Partnership's Share	463	692		(344)
Brazilian toll roads
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	928	766		758
Net income	95	185		(12)
OCI	(39)	382		(1,118)
Comprehensive income	56	567		(1,130)
Attributable to Other Ownership Interests	19	275		(778)
Attributable to Partnership's Share	37	292		(352)
North American natural gas transmission operation
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	681	573		522
Net income	15	133		(29)
OCI	(1)	5		0
Comprehensive income	14	138		(29)
Attributable to Other Ownership Interests	7	69		(19)
Attributable to Partnership's Share	7	69		(10)
Chilean electricity transmission operation
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	441	433		432
Net income	37	38		75
OCI	806	217		(145)
Comprehensive income	843	255		(70)
Attributable to Other Ownership Interests	609	184		(51)
Attributable to Partnership's Share	234	71		(19)
European telecommunications infrastructure operation
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	783	767		579
Net income	58	121		62
OCI	435	376		72
Comprehensive income	493	497		134
Attributable to Other Ownership Interests	409	393		104
Attributable to Partnership's Share	84	104		30
Brazilian rail business
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	1,409	1,024		1,074
Net income	56	70		136
OCI	490	976		(668)
Comprehensive income	546	1,046		(532)
Attributable to Other Ownership Interests	486	931		(474)
Attributable to Partnership's Share	60	115		(58)
Australian port operation
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	418	164
Net income	19	(31)
OCI	78	(81)
Comprehensive income	97	(112)
Attributable to Other Ownership Interests	80	(97)
Attributable to Partnership's Share	17	(15)
Other
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	1,809	1,091		947
Net income	98	54		94
OCI	(19)	280		212
Comprehensive income	79	334		306
Attributable to Other Ownership Interests	55	278		241
Attributable to Partnership's Share	$ 24	$ 56		$ 65

[1] Certain net income allocations have been reclassified to provide comparability with the current year consolidated statements of partnership capital.

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INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Cash Flows Impact of Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	$ 1,481	$ 753	$ 632
Cash used by investing activities	(5,721)	(1,058)	(2,346)
Cash from financing activities	3,814	899	1,764
Change during the year	(426)	594	50
Associates and Joint Ventures
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	2,033	1,504	1,282
Cash used by investing activities	(2,883)	(2,591)	(1,932)
Cash from financing activities	1,485	880	405
Change during the year	635	(207)	(245)
Other Ownership Interests	519	(177)	(163)
Partnership's Share	116	(30)	(82)
Brazilian toll roads
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	345	249	194
Cash used by investing activities	(1,046)	(491)	(534)
Cash from financing activities	800	212	59
Change during the year	99	(30)	(281)
Other Ownership Interests	57	(19)	(194)
Partnership's Share	42	(11)	(87)
North American natural gas transmission operation
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	258	163	98
Cash used by investing activities	(169)	(170)	(157)
Cash from financing activities	(79)	2	10
Change during the year	10	(5)	(49)
Other Ownership Interests	5	(2)	(32)
Partnership's Share	5	(3)	(17)
Chilean electricity transmission operation
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	256	273	274
Cash used by investing activities	(240)	(207)	(122)
Cash from financing activities	14	(27)	(197)
Change during the year	30	39	(45)
Other Ownership Interests	22	28	(32)
Partnership's Share	8	11	(13)
European telecommunications infrastructure operation
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	338	325	253
Cash used by investing activities	(226)	(323)	(101)
Cash from financing activities	(58)	(83)	(19)
Change during the year	54	(81)	133
Other Ownership Interests	43	(64)	106
Partnership's Share	11	(17)	27
Brazilian rail business
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	472	337	309
Cash used by investing activities	(458)	(780)	(929)
Cash from financing activities	292	272	588
Change during the year	306	(171)	(32)
Other Ownership Interests	272	(152)	(29)
Partnership's Share	34	(19)	(3)
Australian port operation
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	80	15
Cash used by investing activities	(15)	(391)
Cash from financing activities	(22)	433
Change during the year	43	57
Other Ownership Interests	40	47
Partnership's Share	3	10
Other
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	284	142	154
Cash used by investing activities	(729)	(229)	(89)
Cash from financing activities	538	71	(36)
Change during the year	93	(16)	29
Other Ownership Interests	80	(15)	18
Partnership's Share	$ 13	$ (1)	$ 11

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PROPERTY, PLANT AND EQUIPMENT - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Utilities
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, revalued assets, at cost	$ 2,961	$ 2,512
Transport
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, revalued assets, at cost	1,970	1,845
Energy
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, revalued assets, at cost	2,246	2,122
Accumulated fair value adjustments
Disclosure of detailed information about property, plant and equipment [line items]
Gain from revaluation	418	335
Accumulated fair value adjustments | Utilities
Disclosure of detailed information about property, plant and equipment [line items]
Gain from revaluation	137	185
Accumulated fair value adjustments | Transport
Disclosure of detailed information about property, plant and equipment [line items]
Gain from revaluation	24	25
Accumulated fair value adjustments | Energy
Disclosure of detailed information about property, plant and equipment [line items]
Gain from revaluation	$ 257	$ 125

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PROPERTY, PLANT AND EQUIPMENT - Net Book Value (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	$ 8,656
Ending balance	9,937	$ 8,656
Utilities
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	3,555
Ending balance	4,219	3,555
Transport
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	2,627
Ending balance	2,843	2,627
Energy
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	2,474
Ending balance	2,875	2,474
Gross Carrying Amount:
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	7,637	6,552
Additions, net of disposals	548	564
Non-cash disposals	(14)	(28)
Acquisitions through business combinations	100	1,067
Net foreign currency exchange differences	486	(518)
Ending balance	8,757	7,637
Gross Carrying Amount: | Utilities
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	2,895	2,945
Additions, net of disposals	349	399
Non-cash disposals	0	(31)
Acquisitions through business combinations	0	0
Net foreign currency exchange differences	227	(418)
Ending balance	3,471	2,895
Gross Carrying Amount: | Transport
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	2,362	2,150
Additions, net of disposals	104	76
Non-cash disposals	0	3
Acquisitions through business combinations	0	242
Net foreign currency exchange differences	191	(109)
Ending balance	2,657	2,362
Gross Carrying Amount: | Energy
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	2,380	1,457
Additions, net of disposals	95	89
Non-cash disposals	(14)	0
Acquisitions through business combinations	100	825
Net foreign currency exchange differences	68	9
Ending balance	2,629	2,380
Accumulated depreciation:
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(1,158)	(868)
Disposals	40
Non-cash disposals	5	4
Net foreign currency exchange differences	(85)	60
Depreciation expense	(382)	(354)
Ending balance	(1,580)	(1,158)
Accumulated depreciation: | Utilities
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(383)	(291)
Disposals	19
Non-cash disposals	0	0
Net foreign currency exchange differences	(28)	36
Depreciation expense	(118)	(128)
Ending balance	(510)	(383)
Accumulated depreciation: | Transport
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(517)	(418)
Disposals	21
Non-cash disposals	0	4
Net foreign currency exchange differences	(44)	24
Depreciation expense	(147)	(127)
Ending balance	(687)	(517)
Accumulated depreciation: | Energy
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(258)	(159)
Disposals	0
Non-cash disposals	5	0
Net foreign currency exchange differences	(13)	0
Depreciation expense	(117)	(99)
Ending balance	(383)	(258)
Accumulated fair value adjustments:
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	2,177	1,948
Fair value adjustments	418	335
Net foreign currency exchange differences	165	(106)
Ending balance	2,760	2,177
Accumulated fair value adjustments: | Utilities
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	1,043	945
Fair value adjustments	137	185
Net foreign currency exchange differences	78	(87)
Ending balance	1,258	1,043
Accumulated fair value adjustments: | Transport
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	782	777
Fair value adjustments	24	25
Net foreign currency exchange differences	67	(20)
Ending balance	873	782
Accumulated fair value adjustments: | Energy
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	352	226
Fair value adjustments	257	125
Net foreign currency exchange differences	20	1
Ending balance	$ 629	$ 352

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PROPERTY, PLANT AND EQUIPMENT - Valuation Technique (Details) - Property, plant and equipment - Recurring fair value measurement - Discounted cash flow model	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Utilities | Bottom of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Discount Rate	7.00%	7.00%
Terminal Value Multiple	7	7
Investment Horizon	10 years	10 years
Utilities | Top of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Discount Rate	12.00%	12.00%
Terminal Value Multiple	21	18
Investment Horizon	20 years	20 years
Transport | Bottom of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Discount Rate	10.00%	10.00%
Terminal Value Multiple	9	8
Investment Horizon	10 years	10 years
Transport | Top of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Discount Rate	15.00%	17.00%
Terminal Value Multiple	14	14
Investment Horizon	20 years	20 years
Energy
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Investment Horizon	10 years	10 years
Energy | Bottom of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Discount Rate	12.00%	9.00%
Terminal Value Multiple	8	10
Energy | Top of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Discount Rate	15.00%	14.00%
Terminal Value Multiple	13	12

XML

INTANGIBLE ASSETS - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of detailed information about intangible assets [line items]
Intangible assets with indefinite useful life	$ 297,000,000	$ 274,000,000
Chilean toll roads
Disclosure of detailed information about intangible assets [line items]
Annual percent adjustment consumer price index	3.50%
Australian regulated terminal
Disclosure of detailed information about intangible assets [line items]
Percent of take or pay contracts	100.00%
Period of additional extension on take or pay contracts	49 years
Peruvian toll roads
Disclosure of detailed information about intangible assets [line items]
Revenue from construction contracts	$ 31,000,000	66,000,000	$ 0
Profit (loss) recognised on exchanging construction services for financial asset	0	0	0
Borrowing costs capitalised	$ 35,000,000	$ 20,000,000	$ 0

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INTANGIBLE ASSETS - Net Amounts (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of detailed information about intangible assets [line items]
Net intangible assets	$ 9,894	$ 4,465
Cost
Disclosure of detailed information about intangible assets [line items]
Net intangible assets	10,470	4,732	$ 3,485
Accumulated amortization
Disclosure of detailed information about intangible assets [line items]
Net intangible assets	$ (576)	$ (267)	$ (189)

XML

INTANGIBLE ASSETS - Cash Generating Units (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of information for cash-generating units [line items]
Total	$ 9,894	$ 4,465
Brazilian regulated gas transmission operation
Disclosure of information for cash-generating units [line items]
Total	5,134	0
Australian regulated terminal
Disclosure of information for cash-generating units [line items]
Total	1,957	1,817
Peruvian toll roads
Disclosure of information for cash-generating units [line items]
Total	1,144	1,049
Chilean toll roads
Disclosure of information for cash-generating units [line items]
Total	1,100	1,054
U.K. port operation
Disclosure of information for cash-generating units [line items]
Total	289	265
Indian toll roads
Disclosure of information for cash-generating units [line items]
Total	130	136
Other
Disclosure of information for cash-generating units [line items]
Total	$ 140	$ 144

XML

INTANGIBLE ASSETS - Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of changes in intangible assets other than goodwill
Cost at beginning of the year	$ 4,465
Cost at end of year	9,894	$ 4,465
Cost
Reconciliation of changes in intangible assets other than goodwill
Cost at beginning of the year	4,732	3,485
Additions, net of disposals	79	116
Acquisitions through business combinations	5,515	1,189
Non-cash additions	18	0
Foreign currency translation	126	(58)
Cost at end of year	$ 10,470	$ 4,732

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INTANGIBLE ASSETS - Accumulated Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about intangible assets [line items]
Cost at beginning of the year	$ 4,465
Cost at end of year	9,894	$ 4,465
Accumulated amortization
Disclosure of detailed information about intangible assets [line items]
Cost at beginning of the year	(267)	(189)
Amortization	(289)	(93)
Foreign currency translation	(20)	15
Cost at end of year	$ (576)	$ (267)

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GOODWILL (Details) - Goodwill - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of changes in intangible assets and goodwill [abstract]
Balance at beginning of the year	$ 502	$ 79
Acquisitions through business combinations	815	431
Foreign currency translation and other	(16)	(8)
Balance at end of the year	$ 1,301	$ 502

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INVESTMENT PROPERTIES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of changes in investment property [abstract]
Balance at beginning of the year	$ 154	$ 153
Additions, net of disposals	0	3
Non-cash additions	0	10
Fair value adjustments	23	12
Foreign currency translation	15	(24)
Balance at December 31	192	154
Investment property completed [member] | U.K. port operation
Reconciliation of changes in investment property [abstract]
Fair value adjustments	$ 23	$ 12
Investment property completed [member] | Transport | Bottom of range | Direct Income Capitalization
Reconciliation of changes in investment property [abstract]
Capitalization rate	6.00%
Investment property completed [member] | Transport | Top of range | Direct Income Capitalization
Reconciliation of changes in investment property [abstract]
Capitalization rate	14.00%

XML

ACCOUNTS PAYABLE AND OTHER (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Current:
Accounts payable	$ 246	$ 266
Accrued & other liabilities	400	274
Deferred revenue	159	108
Provisions	59	64
Total current	864	712
Non-current:
Deferred revenue	300	293
Pension liabilities	100	98
Provisions	95	41
Other liabilities	298	148
Total non-current	$ 793	$ 580
Average credit period on purchases of goods and services	30 days

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FINANCIAL LIABILITIES (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Current:
Foreign currency forward contracts	$ 150	$ 47
Other financial liabilities	87	182
Total current financial liabilities	237	229
Non-current:
Interest rate swaps	9	34
Inflation swaps	84	97
Deferred consideration	916	0
Other financial liabilities	67	21
Total non-current financial liabilities	$ 1,076	$ 152

XML

BORROWINGS - Additional Information (Details)			2 Months Ended	12 Months Ended
	Oct. 10, 2017 USD ($)	Oct. 10, 2017 CAD ($)	Mar. 13, 2018 USD ($)	Dec. 31, 2017 USD ($) extension	Feb. 14, 2018 USD ($)	Dec. 31, 2017 CAD ($) extension	Apr. 17, 2017 USD ($)	Apr. 17, 2017 CAD ($)	Feb. 22, 2017 USD ($)	Feb. 22, 2017 CAD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2016 CAD ($)
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings				$ 10,164,000,000							$ 8,326,000,000
Letter of credit outstanding amount				106,000,000							46,000,000
Subsequent Event
Disclosure of detailed information about borrowings [line items]
Cancellation of letters of credit			$ 59,000,000
Corporate revolving credit facility
Disclosure of detailed information about borrowings [line items]
Credit facility, maximum borrowing capacity				$ 1,975,000,000.000
Unused commitment fee				0.18%		0.18%
Subsidiary and corporate borrowings				$ 789,000,000							0
Letter of credit outstanding amount				$ 106,000,000							46,000,000
Corporate revolving credit facility | Floating interest rate
Disclosure of detailed information about borrowings [line items]
Borrowings, adjustment to interest rate basis				1.20%		1.20%
Non-recourse borrowings
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings				$ 8,063,000,000							7,324,000,000
Increase in borrowings				739,000,000
Increase (decrease) through effect of changes in foreign exchange rates, liabilities arising from financing activities				379,000,000
Increase (decrease) through financing cash flows, liabilities arising from financing activities				360,000,000
Non-recourse borrowings | CAD
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings				397,000,000		$ 499,000,000					263,000,000	$ 354,000,000
Non-recourse borrowings | USD
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings				3,087,000,000							3,039,000,000
Medium-term notes, maturing February 22, 2024
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings				$ 239,000,000							0
Medium-term notes, maturing February 22, 2024 | Debt Issuers
Disclosure of detailed information about borrowings [line items]
Face amount										$ 300,000,000
Medium-term notes, maturing February 22, 2024 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate				3.30%		3.30%	3.30%	3.30%
Medium-term notes, maturing February 22, 2024 | Fixed interest rate | CAD
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate							3.10%	3.10%	3.30%	3.30%
Medium-term notes, maturing February 22, 2024 | Fixed interest rate | USD
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate							4.00%	4.00%	4.10%	4.10%
Medium-term notes, maturing February 22, 2024 | Fixed interest rate | Debt Issuers | CAD
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate									3.30%	3.30%
Medium-term notes, maturing February 22, 2024 | Fixed interest rate | Debt Issuers | USD
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate									4.10%	4.10%
Medium-term notes, maturing February 22, 2024 | Debt issuance
Disclosure of detailed information about borrowings [line items]
Face amount							$ 309,000,000	$ 400,000,000	$ 228,000,000	$ 300,000,000
Medium Term Notes, Public - Canadian - Maturing October 10, 2017
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings				$ 0							295,000,000
Medium Term Notes, Public - Canadian - Maturing October 10, 2017 | Debt Issuers
Disclosure of detailed information about borrowings [line items]
Amount repaid	$ 306,000,000	$ 400,000,000
Medium Term Notes, Public - Canadian - Maturing October 10, 2017 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate				3.50%		3.50%
Corporate borrowings
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings				$ 2,101,000,000							1,002,000,000
Increase (decrease) through effect of changes in foreign exchange rates, liabilities arising from financing activities				79,000,000
Revolving credit facility with Brookfield
Disclosure of detailed information about borrowings [line items]
Credit facility, maximum borrowing capacity				$ 500,000,000
Borrowings, number of extensions | extension				4		4
Subsidiary and corporate borrowings				$ 0							$ 0
Revolving credit facility with Brookfield | Floating interest rate
Disclosure of detailed information about borrowings [line items]
Borrowings, adjustment to interest rate basis				2.00%		2.00%
Commitment fees				$ 0
Revolving credit facility with Brookfield | Subsequent Event
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings			$ 400,000,000
Senior secured notes | Subsequent Event | North American gas storage operation
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings					$ 400,000,000
Borrowings, interest rate					7.00%

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BORROWINGS - Corporate Borrowings (Details) - USD ($)	Mar. 13, 2018	Dec. 31, 2017	Apr. 17, 2017	Dec. 31, 2016
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings		$ 10,164,000,000		$ 8,326,000,000
Corporate revolving credit facility
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings		$ 789,000,000		0
Unused commitment fee		0.18%
Corporate revolving credit facility | Floating interest rate
Disclosure of detailed information about borrowings [line items]
Borrowings, adjustment to interest rate basis		1.20%
Medium Term Notes, Public - Canadian - Maturing October 10, 2017
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings		$ 0		295,000,000
Medium Term Notes, Public - Canadian - Maturing October 10, 2017 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Annual Rate		3.50%
Medium Term Notes, Public - Canadian - Maturing October 30, 2018
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings		$ 99,000,000		93,000,000
Medium Term Notes, Public - Canadian - Maturing October 30, 2018 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Annual Rate		3.00%
Medium Term Notes, Public - Canadian - Maturing October 30, 2020
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings		$ 298,000,000		279,000,000
Medium Term Notes, Public - Canadian - Maturing October 30, 2020 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Annual Rate		3.50%
Medium Term Notes, Public - Canadian - Maturing March 11, 2022
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings		$ 358,000,000		335,000,000
Medium Term Notes, Public - Canadian - Maturing March 11, 2022 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Annual Rate		3.50%
Medium Term Notes, Public - Canadian - Maturing February 22, 2024
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings		$ 239,000,000		0
Medium Term Notes, Public - Canadian - Maturing February 22, 2024 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Annual Rate		3.30%	3.30%
Medium Term Notes, Public - Canadian - Maturing February 22, 2024
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings		$ 318,000,000		0
Medium Term Notes, Public - Canadian - Maturing February 22, 2024 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Annual Rate		3.30%
Revolving credit facility with Brookfield
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings		$ 0		$ 0
Revolving credit facility with Brookfield | Floating interest rate
Disclosure of detailed information about borrowings [line items]
Borrowings, adjustment to interest rate basis		2.00%
Subsequent Event | Revolving credit facility with Brookfield
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	$ 400,000,000

XML

BORROWINGS - Non-Recourse Borrowings (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about borrowings [line items]
Total	$ 10,164	$ 8,326
Non-recourse borrowings
Disclosure of detailed information about borrowings [line items]
Current	364	279
Non-current	7,699	7,045
Total	$ 8,063	$ 7,324

XML

BORROWINGS - Repayments on Non-Recourse Borrowings (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	$ 10,164	$ 8,326
Non-recourse borrowings
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	8,063	7,324
Non-recourse borrowings | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	8,087
Non-recourse borrowings | Deferred financing costs and other
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	(24)
Non-recourse borrowings | 2018 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	372
Non-recourse borrowings | 2019 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	570
Non-recourse borrowings | 2020 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	583
Non-recourse borrowings | 2021 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	695
Non-recourse borrowings | 2022 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	767
Non-recourse borrowings | Thereafter | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	5,100
Non-recourse borrowings | Utilities
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	3,649	3,207
Non-recourse borrowings | Utilities | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	3,650
Non-recourse borrowings | Utilities | Deferred financing costs and other
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	(1)
Non-recourse borrowings | Utilities | 2018 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	0
Non-recourse borrowings | Utilities | 2019 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	87
Non-recourse borrowings | Utilities | 2020 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	304
Non-recourse borrowings | Utilities | 2021 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	461
Non-recourse borrowings | Utilities | 2022 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	440
Non-recourse borrowings | Utilities | Thereafter | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	2,358
Non-recourse borrowings | Transport
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	3,257	3,163
Non-recourse borrowings | Transport | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	3,262
Non-recourse borrowings | Transport | Deferred financing costs and other
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	(5)
Non-recourse borrowings | Transport | 2018 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	143
Non-recourse borrowings | Transport | 2019 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	261
Non-recourse borrowings | Transport | 2020 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	210
Non-recourse borrowings | Transport | 2021 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	230
Non-recourse borrowings | Transport | 2022 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	323
Non-recourse borrowings | Transport | Thereafter | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	2,095
Non-recourse borrowings | Energy
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	1,157	$ 954
Non-recourse borrowings | Energy | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	1,175
Non-recourse borrowings | Energy | Deferred financing costs and other
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	(18)
Non-recourse borrowings | Energy | 2018 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	229
Non-recourse borrowings | Energy | 2019 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	222
Non-recourse borrowings | Energy | 2020 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	69
Non-recourse borrowings | Energy | 2021 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	4
Non-recourse borrowings | Energy | 2022 | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	4
Non-recourse borrowings | Energy | Thereafter | Gross
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	$ 647

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BORROWINGS - Weighted Average Interest Rate (Details) - Interest on non-recourse borrowings - Weighted average	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	5.00%	5.00%
Utilities
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	4.00%	4.00%
Transport
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	5.00%	5.00%
Energy
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	5.00%	5.00%

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BORROWINGS - Borrowings by Currency (Details) ₨ in Millions, £ in Millions, S/ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions, in Millions	Dec. 31, 2017 USD ($)	Dec. 31, 2017 COP ($)	Dec. 31, 2017 GBP (£)	Dec. 31, 2017 CLF ( )	Dec. 31, 2017 PEN (S/)	Dec. 31, 2017 AUD ($)	Dec. 31, 2017 CAD ($)	Dec. 31, 2017 INR (₨)	Dec. 31, 2017 NZD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2016 COP ($)	Dec. 31, 2016 GBP (£)	Dec. 31, 2016 CLF ( )	Dec. 31, 2016 PEN (S/)	Dec. 31, 2016 AUD ($)	Dec. 31, 2016 CAD ($)	Dec. 31, 2016 INR (₨)	Dec. 31, 2016 NZD ($)
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	$ 10,164									$ 8,326
Interest on non-recourse borrowings
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	8,063									7,324
Interest on non-recourse borrowings | AUD
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	1,013					$ 1,297				922					$ 1,281
Interest on non-recourse borrowings | GBP
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	1,735		£ 1,283							1,390		£ 1,125
Interest on non-recourse borrowings | USD
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	3,087									3,039
Interest on non-recourse borrowings | UF
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	960			22						901			23
Interest on non-recourse borrowings | CAD
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	397						$ 499			263						$ 354
Interest on non-recourse borrowings | COP
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	184	$ 549,384								133	$ 403,030
Interest on non-recourse borrowings | PEN
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	458				S/ 1,483					439				S/ 1,473
Interest on non-recourse borrowings | INR
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	186							₨ 11,847		196							₨ 13,324
Interest on non-recourse borrowings | NZD
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	$ 43								$ 61	$ 41								$ 59

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BORROWINGS - Supplemental Cash Flows (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($)
Corporate borrowings
Disclosure of reconciliation of liabilities arising from financing activities [abstract]
Beginning Balance	$ 1,002
Cash Flows	1,020
Acquisition	0
Foreign Exchange Movement	79
Fair Value Changes	0
Ending Balance	2,101
Non-recourse borrowings
Disclosure of reconciliation of liabilities arising from financing activities [abstract]
Beginning Balance	7,324
Cash Flows	360
Acquisition	0
Foreign Exchange Movement	379
Fair Value Changes	0
Ending Balance	$ 8,063

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SUBSIDIARY PUBLIC ISSUERS - Additional Information (Details) $ in Millions	Oct. 10, 2017 USD ($)	Oct. 10, 2017 CAD ($)	Oct. 30, 2015 CAD ($)	Dec. 31, 2017	Apr. 17, 2017 CAD ($)	Feb. 22, 2017 CAD ($)	Mar. 11, 2015 CAD ($)
Medium Term Notes, Public - Canadian - Maturing February 22, 2024 | Fixed interest rate
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate				3.30%
Medium-term notes, maturing February 22, 2024 | Fixed interest rate
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate				3.30%	3.30%
Medium-term notes, maturing February 22, 2024 | Fixed interest rate | CAD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate					3.10%	3.30%
Medium-term notes, maturing February 22, 2024 | Fixed interest rate | USD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate					4.00%	4.10%
Medium Term Notes, Public - Canadian - Maturing October 30, 2018 | Fixed interest rate
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate				3.00%
Medium Term Notes, Public - Canadian - Maturing October 30, 2020 | Fixed interest rate
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate				3.50%
Medium Term Notes, Public - Canadian - Maturing March 11, 2022 | Fixed interest rate
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate				3.50%
Medium Term Notes, Public - Canadian - Maturing October 10, 2017 | Fixed interest rate
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate				3.50%
Debt Issuers | Medium Term Notes, Public - Canadian - Maturing February 22, 2024
Disclosure of information about consolidated structured entities [line items]
Face amount					$ 400,000,000
Debt Issuers | Medium Term Notes, Public - Canadian - Maturing February 22, 2024 | Fixed interest rate | CAD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate					3.30%
Debt Issuers | Medium Term Notes, Public - Canadian - Maturing February 22, 2024 | Fixed interest rate | USD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate					4.00%
Debt Issuers | Medium-term notes, maturing February 22, 2024
Disclosure of information about consolidated structured entities [line items]
Face amount						$ 300,000,000
Debt Issuers | Medium-term notes, maturing February 22, 2024 | Fixed interest rate | CAD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate						3.30%
Debt Issuers | Medium-term notes, maturing February 22, 2024 | Fixed interest rate | USD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate						4.10%
Debt Issuers | Medium-term Notes Under The Indenture In The Canadian Bond Market
Disclosure of information about consolidated structured entities [line items]
Face amount			$ 500,000,000
Debt Issuers | Medium-term Notes Under The Indenture In The Canadian Bond Market | Fixed interest rate | USD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate			3.80%
Debt Issuers | Medium Term Notes, Public - Canadian - Maturing October 30, 2018
Disclosure of information about consolidated structured entities [line items]
Face amount			$ 125,000,000
Period term			3 years
Debt Issuers | Medium Term Notes, Public - Canadian - Maturing October 30, 2018 | Fixed interest rate | CAD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate			3.00%
Debt Issuers | Medium Term Notes, Public - Canadian - Maturing October 30, 2020
Disclosure of information about consolidated structured entities [line items]
Face amount			$ 375,000,000
Period term			5 years
Debt Issuers | Medium Term Notes, Public - Canadian - Maturing October 30, 2020 | Fixed interest rate | CAD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate			3.50%
Debt Issuers | Medium Term Notes, Public - Canadian - Maturing March 11, 2022
Disclosure of information about consolidated structured entities [line items]
Face amount							$ 450,000,000
Debt Issuers | Medium Term Notes, Public - Canadian - Maturing March 11, 2022 | Fixed interest rate | CAD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate							3.50%
Debt Issuers | Medium Term Notes, Public - Canadian - Maturing March 11, 2022 | Fixed interest rate | USD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate							3.90%
Debt Issuers | Medium Term Notes, Public - Canadian - Maturing October 10, 2017
Disclosure of information about consolidated structured entities [line items]
Amount repaid	$ 306	$ 400,000,000

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SUBSIDIARY PUBLIC ISSUERS - Financial Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of comprehensive income [abstract]
Revenues	$ 3,535	$ 2,115	$ 1,855
Net income attributable to partnership	125	487	301
Statement of financial position [abstract]
Current assets	1,512	1,632	1,553
Non-current assets	27,965	19,643	16,182
Current liabilities	1,564	1,515	1,210
Non-current liabilities	14,439	10,116	9,349
Non-controlling interest—Redeemable Partnership Units held by Brookfield	2,012	1,860	1,518
Non-controlling interests—in operating subsidiaries	5,875	2,771
Preferred unitholders	595	375
Our partnership
Statement of comprehensive income [abstract]
Revenues	0	0	0
Net income attributable to partnership	11	285	169
Statement of financial position [abstract]
Current assets	0	0
Non-current assets	5,514	4,937
Current liabilities	0	0
Non-current liabilities	0	0
Non-controlling interest—Redeemable Partnership Units held by Brookfield	0	0
Non-controlling interests—in operating subsidiaries	0	0
Preferred unitholders	0	0
The Issuers
Statement of comprehensive income [abstract]
Revenues	0	0	0
Net income attributable to partnership	0	0	0
Statement of financial position [abstract]
Current assets	0	3
Non-current assets	0	297
Current liabilities	0	5
Non-current liabilities	1,313	1,004
Non-controlling interest—Redeemable Partnership Units held by Brookfield	0	0
Non-controlling interests—in operating subsidiaries	0	0
Preferred unitholders	0	0
Subsidiaries of our partnership other than the Issuers
Statement of comprehensive income [abstract]
Revenues	0	0	0
Net income attributable to partnership	125	487	301
Statement of financial position [abstract]
Current assets	0	0
Non-current assets	5,987	5,248
Current liabilities	0	0
Non-current liabilities	0	0
Non-controlling interest—Redeemable Partnership Units held by Brookfield	0	0
Non-controlling interests—in operating subsidiaries	0	0
Preferred unitholders	0	0
Consolidating adjustments
Statement of comprehensive income [abstract]
Revenues	3,535	2,115	1,855
Net income attributable to partnership	(11)	(285)	$ (169)
Statement of financial position [abstract]
Current assets	1,512	1,629
Non-current assets	16,464	9,161
Current liabilities	1,564	1,510
Non-current liabilities	13,126	9,112
Non-controlling interest—Redeemable Partnership Units held by Brookfield	2,012	1,860
Non-controlling interests—in operating subsidiaries	5,875	2,771
Preferred unitholders	$ 595	$ 375

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PREFERRED SHARES (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Sep. 14, 2016
Disclosure of classes of share capital [line items]
Number of shares issued			115,000,000
Preferred shares	$ 20,000,000	$ 20,000,000
Dividend payables	$ 0	0
Preference shares
Disclosure of classes of share capital [line items]
Expected dividend payable as percentage	6.00%
Brookfield Infrastructure Holdings (Canada) Inc.
Disclosure of classes of share capital [line items]
Preferred shares	$ 5,000,000	5,000,000
Brookfield Infrastructure Holdings (Canada) Inc. | Preference shares
Disclosure of classes of share capital [line items]
Number of shares issued	196,000
Brookfield Infrastructure US Holdings I Corporation
Disclosure of classes of share capital [line items]
Preferred shares	$ 5,000,000	5,000,000
Brookfield Infrastructure US Holdings I Corporation | Preferred shares
Disclosure of classes of share capital [line items]
Redemption price per share	$ 5,000,000
Brookfield Infrastructure US Holdings I Corporation | Preference shares
Disclosure of classes of share capital [line items]
Number of shares issued	1
BIP Bermuda Holdings I Limited
Disclosure of classes of share capital [line items]
Preferred shares	$ 10,000,000	$ 10,000,000
BIP Bermuda Holdings I Limited | Preference shares
Disclosure of classes of share capital [line items]
Number of shares issued	400,000
Brookfield Infrastructure Holdings (Canada) Inc. and BIP Bermuda Holdings I Limited | Preferred shares
Disclosure of classes of share capital [line items]
Redemption price per share	$ 25

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REVENUES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of operating segments [line items]
Revenue	$ 3,535	$ 2,115	$ 1,855
Utilities | Regulated Transmission
Disclosure of operating segments [line items]
Revenue	938	27	43
Utilities | Regulated Terminal
Disclosure of operating segments [line items]
Revenue	301	299	330
Utilities | Regulated Distribution
Disclosure of operating segments [line items]
Revenue	546	499	491
Transport | Rail
Disclosure of operating segments [line items]
Revenue	296	270	316
Transport | Ports
Disclosure of operating segments [line items]
Revenue	681	360	220
Transport | Toll Roads
Disclosure of operating segments [line items]
Revenue	313	262	113
Energy | Transmission & Storage
Disclosure of operating segments [line items]
Revenue	150	141	105
Energy | District Energy
Disclosure of operating segments [line items]
Revenue	$ 310	$ 257	$ 237

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INTEREST EXPENSE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of detailed information about borrowings [line items]
Other financing fees	$ 4	$ 3	$ 6
Interest expense	428	392	367
Interest on corporate facility
Disclosure of detailed information about borrowings [line items]
Interest	12	12	5
Interest on corporate debt
Disclosure of detailed information about borrowings [line items]
Interest	51	39	22
Interest on non-recourse borrowings
Disclosure of detailed information about borrowings [line items]
Interest	$ 361	$ 338	$ 334

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PAYROLL EXPENSE (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) employee	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Analysis of income and expense [abstract]
Partnership, number of key employees or directors | employee	0
Payroll expense	$ 519	$ 309	$ 212
Payroll Expense [Line Items]
Directors' remuneration expense	1	1	1
General Partner
Payroll Expense [Line Items]
Directors' remuneration expense	$ 1	$ 1	$ 1

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NON-WHOLLY OWNED SUBSIDIARIES - Summarized Statement of Financial Position (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of subsidiaries [line items]
Current Assets	$ 1,512	$ 1,632	$ 1,553
Non-Current Assets	27,965	19,643	16,182
Current Liabilities	1,564	1,515	1,210
Non-Current Liabilities	14,439	10,116	$ 9,349
Non-Wholly Owned Subsidiaries
Disclosure of subsidiaries [line items]
Current Assets	1,430	1,542
Non-Current Assets	19,770	13,034
Current Liabilities	1,465	1,402
Non-Current Liabilities	12,699	8,620
Non-Controlling Interest in Operating Subsidiaries	5,873	2,771
Partnership Capital	1,163	1,783
U.K. regulated distribution
Disclosure of subsidiaries [line items]
Current Assets	107	65
Non-Current Assets	3,550	2,985
Current Liabilities	281	154
Non-Current Liabilities	2,261	1,919
Non-Controlling Interest in Operating Subsidiaries	217	183
Partnership Capital	898	794
Australian regulated terminal
Disclosure of subsidiaries [line items]
Current Assets	38	27
Non-Current Assets	2,229	2,162
Current Liabilities	34	(9)
Non-Current Liabilities	2,035	1,926
Non-Controlling Interest in Operating Subsidiaries	62	70
Partnership Capital	136	202
Colombian regulated distribution
Disclosure of subsidiaries [line items]
Current Assets	68	55
Non-Current Assets	764	701
Current Liabilities	26	27
Non-Current Liabilities	438	369
Non-Controlling Interest in Operating Subsidiaries	302	294
Partnership Capital	66	66
Brazilian regulated gas transmission operation
Disclosure of subsidiaries [line items]
Current Assets	322
Non-Current Assets	5,990
Current Liabilities	73
Non-Current Liabilities	2,015
Non-Controlling Interest in Operating Subsidiaries	3,081
Partnership Capital	1,143
U.K. port operation
Disclosure of subsidiaries [line items]
Current Assets	44	42
Non-Current Assets	880	754
Current Liabilities	133	108
Non-Current Liabilities	353	324
Non-Controlling Interest in Operating Subsidiaries	179	150
Partnership Capital	259	214
Australian port operation
Disclosure of subsidiaries [line items]
Current Assets	163	142
Non-Current Assets	628	587
Current Liabilities	101	94
Non-Current Liabilities	218	205
Non-Controlling Interest in Operating Subsidiaries	346	315
Partnership Capital	126	115
Chilean toll roads
Disclosure of subsidiaries [line items]
Current Assets	84	102
Non-Current Assets	1,116	1,069
Current Liabilities	59	50
Non-Current Liabilities	989	941
Non-Controlling Interest in Operating Subsidiaries	75	89
Partnership Capital	77	91
Brazilian toll roads
Disclosure of subsidiaries [line items]
Current Assets		42
Non-Current Assets		466
Current Liabilities		27
Non-Current Liabilities		0
Non-Controlling Interest in Operating Subsidiaries		189
Partnership Capital		292
Peruvian toll roads
Disclosure of subsidiaries [line items]
Current Assets	101	127
Non-Current Assets	1,356	1,261
Current Liabilities	18	27
Non-Current Liabilities	674	635
Non-Controlling Interest in Operating Subsidiaries	644	610
Partnership Capital	121	116
Indian toll roads
Disclosure of subsidiaries [line items]
Current Assets	58	52
Non-Current Assets	256	264
Current Liabilities	30	36
Non-Current Liabilities	185	186
Non-Controlling Interest in Operating Subsidiaries	60	58
Partnership Capital	39	36
North American gas storage operation
Disclosure of subsidiaries [line items]
Current Assets	206	199
Non-Current Assets	1,259	1,141
Current Liabilities	244	136
Non-Current Liabilities	409	478
Non-Controlling Interest in Operating Subsidiaries	502	452
Partnership Capital	310	274
Canadian district energy operation
Disclosure of subsidiaries [line items]
Current Assets	75	15
Non-Current Assets	699	570
Current Liabilities	55	13
Non-Current Liabilities	394	290
Non-Controlling Interest in Operating Subsidiaries	243	209
Partnership Capital	82	73
U.S. district energy operation
Disclosure of subsidiaries [line items]
Current Assets	37	43
Non-Current Assets	799	697
Current Liabilities	19	62
Non-Current Liabilities	668	537
Non-Controlling Interest in Operating Subsidiaries	78	73
Partnership Capital	71	68
Holding LP and other
Disclosure of subsidiaries [line items]
Current Assets	127	631
Non-Current Assets	244	377
Current Liabilities	392	677
Non-Current Liabilities	2,060	810
Non-Controlling Interest in Operating Subsidiaries	84	79
Partnership Capital	$ (2,165)	$ (558)

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NON-WHOLLY OWNED SUBSIDIARIES - Summarized Statement of Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of subsidiaries [line items]
Revenues	$ 3,535	$ 2,115	$ 1,855
Net income (loss) attributable to partnership	125	487	301
Non-Wholly Owned Subsidiaries
Disclosure of subsidiaries [line items]
Revenues	3,177	1,724	1,389
Attributable to non-controlling interest, Net Income (loss)	443	41	90
Attributable to non-controlling interest, Other Comprehensive Income (loss)	146	67	(83)
Net income (loss) attributable to partnership	(7)	163	203
Attributable to unitholders, Other Comprehensive Income (loss)	(210)	126	56
U.K. regulated distribution
Disclosure of subsidiaries [line items]
Revenues	385	347	339
Attributable to non-controlling interest, Net Income (loss)	21	12	21
Attributable to non-controlling interest, Other Comprehensive Income (loss)	29	(14)	25
Net income (loss) attributable to partnership	114	79	122
Attributable to unitholders, Other Comprehensive Income (loss)	118	(55)	101
Australian regulated terminal
Disclosure of subsidiaries [line items]
Revenues	301	299	330
Attributable to non-controlling interest, Net Income (loss)	15	15	15
Attributable to non-controlling interest, Other Comprehensive Income (loss)	3	(5)	(4)
Net income (loss) attributable to partnership	35	46	68
Attributable to unitholders, Other Comprehensive Income (loss)	7	(12)	(9)
Colombian regulated distribution
Disclosure of subsidiaries [line items]
Revenues	161	150	152
Attributable to non-controlling interest, Net Income (loss)	12	10	13
Attributable to non-controlling interest, Other Comprehensive Income (loss)	38	45	(26)
Net income (loss) attributable to partnership	2	2	16
Attributable to unitholders, Other Comprehensive Income (loss)	7	10	(9)
Brazilian regulated gas transmission operation
Disclosure of subsidiaries [line items]
Revenues	938
Attributable to non-controlling interest, Net Income (loss)	349
Attributable to non-controlling interest, Other Comprehensive Income (loss)	(160)
Net income (loss) attributable to partnership	146
Attributable to unitholders, Other Comprehensive Income (loss)	(72)
U.K. port operation
Disclosure of subsidiaries [line items]
Revenues	180	178	220
Attributable to non-controlling interest, Net Income (loss)	8	11	7
Attributable to non-controlling interest, Other Comprehensive Income (loss)	21	(37)	13
Net income (loss) attributable to partnership	22	20	22
Attributable to unitholders, Other Comprehensive Income (loss)	29	(52)	18
Australian port operation
Disclosure of subsidiaries [line items]
Revenues	501	182
Attributable to non-controlling interest, Net Income (loss)	(7)	(18)
Attributable to non-controlling interest, Other Comprehensive Income (loss)	28	(24)
Net income (loss) attributable to partnership	(3)	(7)
Attributable to unitholders, Other Comprehensive Income (loss)	9	(8)
Chilean toll roads
Disclosure of subsidiaries [line items]
Revenues	154	127	113
Attributable to non-controlling interest, Net Income (loss)	0	(9)	(7)
Attributable to non-controlling interest, Other Comprehensive Income (loss)	7	7	(20)
Net income (loss) attributable to partnership	0	(10)	(15)
Attributable to unitholders, Other Comprehensive Income (loss)	8	8	(21)
Brazilian toll roads
Disclosure of subsidiaries [line items]
Revenues		0
Attributable to non-controlling interest, Net Income (loss)		6
Attributable to non-controlling interest, Other Comprehensive Income (loss)		38
Net income (loss) attributable to partnership		5
Attributable to unitholders, Other Comprehensive Income (loss)		25
Peruvian toll roads
Disclosure of subsidiaries [line items]
Revenues	103	97
Attributable to non-controlling interest, Net Income (loss)	12	(8)
Attributable to non-controlling interest, Other Comprehensive Income (loss)	22	(7)
Net income (loss) attributable to partnership	2	(2)
Attributable to unitholders, Other Comprehensive Income (loss)	5	(1)
Indian toll roads
Disclosure of subsidiaries [line items]
Revenues	57	39
Attributable to non-controlling interest, Net Income (loss)	(2)	(3)
Attributable to non-controlling interest, Other Comprehensive Income (loss)	4	1
Net income (loss) attributable to partnership	(1)	(3)
Attributable to unitholders, Other Comprehensive Income (loss)	3	0
North American gas storage operation
Disclosure of subsidiaries [line items]
Revenues	149	100	20
Attributable to non-controlling interest, Net Income (loss)	30	1	(8)
Attributable to non-controlling interest, Other Comprehensive Income (loss)	74	0	5
Net income (loss) attributable to partnership	18	1	(12)
Attributable to unitholders, Other Comprehensive Income (loss)	47	0	1
Canadian district energy operation
Disclosure of subsidiaries [line items]
Revenues	95	79	80
Attributable to non-controlling interest, Net Income (loss)	(2)	(1)	0
Attributable to non-controlling interest, Other Comprehensive Income (loss)	39	31	6
Net income (loss) attributable to partnership	0	1	0
Attributable to unitholders, Other Comprehensive Income (loss)	13	11	2
U.S. district energy operation
Disclosure of subsidiaries [line items]
Revenues	131	111	114
Attributable to non-controlling interest, Net Income (loss)	10	(6)	(6)
Attributable to non-controlling interest, Other Comprehensive Income (loss)	40	31	8
Net income (loss) attributable to partnership	7	0	(3)
Attributable to unitholders, Other Comprehensive Income (loss)	26	20	5
Holding LP and other
Disclosure of subsidiaries [line items]
Revenues	22	15	21
Attributable to non-controlling interest, Net Income (loss)	(3)	31	55
Attributable to non-controlling interest, Other Comprehensive Income (loss)	1	1	(90)
Net income (loss) attributable to partnership	(349)	31	5
Attributable to unitholders, Other Comprehensive Income (loss)	$ (410)	$ 180	$ (32)

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NON-WHOLLY OWNED SUBSIDIARIES - Summarized Cash Flow Activities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	$ 1,481	$ 753	$ 632
Cash Flow Activities, Investing	(5,721)	(1,058)	(2,346)
Cash Flow Activities, Financing	3,814	899	1,764
Non-Wholly Owned Subsidiaries
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	1,364	681	506
Cash Flow Activities, Investing	(5,621)	(995)	(1,031)
Cash Flow Activities, Financing	3,840	901	564
U.K. regulated distribution
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	220	244	164
Cash Flow Activities, Investing	(343)	(487)	(242)
Cash Flow Activities, Financing	129	245	92
Australian regulated terminal
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	96	128	103
Cash Flow Activities, Investing	(9)	(22)	(37)
Cash Flow Activities, Financing	(87)	(106)	(67)
New England electricity transmission operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating			2
Cash Flow Activities, Investing			0
Cash Flow Activities, Financing			(2)
Colombian regulated distribution
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	7	17	16
Cash Flow Activities, Investing	(22)	(18)	(6)
Cash Flow Activities, Financing	26	0	(7)
Brazilian regulated gas transmission operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	819	0
Cash Flow Activities, Investing	83	0
Cash Flow Activities, Financing	(839)	0
U.K. port operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	46	33	19
Cash Flow Activities, Investing	(40)	(24)	(66)
Cash Flow Activities, Financing	(10)	(14)	61
Australian port operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	37	7	0
Cash Flow Activities, Investing	(39)	(99)	0
Cash Flow Activities, Financing	12	154	0
Chilean toll roads
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	56	63	70
Cash Flow Activities, Investing	(5)	(1)	0
Cash Flow Activities, Financing	(88)	(99)	(38)
Brazilian toll roads
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	0	2
Cash Flow Activities, Investing	0	(70)
Cash Flow Activities, Financing	0	70
Peruvian toll roads
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	46	29
Cash Flow Activities, Investing	(67)	25
Cash Flow Activities, Financing	0	1
Indian toll roads
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	30	(7)
Cash Flow Activities, Investing	(7)	28
Cash Flow Activities, Financing	(22)	(10)
North American gas storage operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	55	(12)	(3)
Cash Flow Activities, Investing	(9)	6	(1)
Cash Flow Activities, Financing	(76)	46	1
Canadian district energy operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	26	27	22
Cash Flow Activities, Investing	(82)	(18)	(16)
Cash Flow Activities, Financing	102	(13)	(23)
U.S. district energy operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	24	26	21
Cash Flow Activities, Investing	8	(33)	(13)
Cash Flow Activities, Financing	(28)	9	(7)
Holding LP and other
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	(98)	124	92
Cash Flow Activities, Investing	(5,089)	(282)	(650)
Cash Flow Activities, Financing	$ 4,721	$ 618	$ 554

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INCOME TAXES - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 859	$ 820
Temporary differences associated with investments in subsidiaries, associates and joint ventures for which deferred tax liabilities have not been recognised	2,411	2,230
Capital Losses
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	480	442
Non-Capital Losses
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	379	378
Non-Capital Losses | Expire between 2020 to 2030
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	7	5
Non-Capital Losses | Have no expiry dates
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 372	373
Indian toll roads
Disclosure of detailed information about business combination [line items]
Net deferred tax assets		$ 10

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INCOME TAXES - Deferred Income Tax Balances (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred income tax assets, gross	$ 361	$ 482
Deferred income tax liabilities, gross	(3,144)	(2,020)
Deferred income tax assets	66	74
Deferred income tax liabilities	(2,849)	(1,612)
Net deferred income tax liabilities	(2,783)	(1,538)	$ (1,303)
Tax losses carried forward
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred income tax assets, gross	361	357
Net deferred income tax liabilities	361	357	$ 239
Financial instruments and other
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred income tax assets, gross	0	125
Deferred income tax liabilities, gross	(9)	0
Property, plant and equipment and investment properties
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred income tax liabilities, gross	(1,374)	(1,306)
Intangible assets
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred income tax liabilities, gross	$ (1,761)	$ (714)

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INCOME TAXES - Deferred Tax Balances and Movement (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of changes in deferred tax liability (asset) [abstract]
Net deferred income tax liabilities	$ (1,538)	$ (1,303)
Net Income	(67)	18
Other Comprehensive Income	(200)	(75)	$ (141)
Other	(48)	56
Acquisitions (Dispositions)	(930)	(234)
Net deferred income tax liabilities	(2,783)	(1,538)	(1,303)
Deferred income tax assets related to non-capital losses and capital losses
Reconciliation of changes in deferred tax liability (asset) [abstract]
Net deferred income tax liabilities	357	239
Net Income	(19)	17
Other Comprehensive Income	0	0
Other	23	4
Acquisitions (Dispositions)	0	97
Net deferred income tax liabilities	361	357	239
Deferred income tax liabilities related to differences in tax and book basis, net
Reconciliation of changes in deferred tax liability (asset) [abstract]
Net deferred income tax liabilities	(1,895)	(1,542)
Net Income	(48)	1
Other Comprehensive Income	(200)	(75)
Other	(71)	52
Acquisitions (Dispositions)	(930)	(331)
Net deferred income tax liabilities	$ (3,144)	$ (1,895)	$ (1,542)

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INCOME TAXES - Income Tax Recognized in Profit or Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Taxes [Abstract]
Current income tax expense	$ 106	$ 33	$ 22
Origination and reversal of temporary differences	92	(62)	4
Changes in tax rates or the imposition of new taxes	(41)	1	(28)
Previously unrecognized deferred taxes	16	43	(2)
Net income before income tax	747	543	387
Income tax expense calculated at the domestic rates applicable to profits in the country concerned	304	77	74
Change in substantively enacted tax rates	(41)	1	(28)
Earnings from investments in associates and joint ventures	(12)	(34)	(16)
Portion of gains subject to different tax rates	2	(54)	2
Taxable income attributable to non-controlling interests	(65)	(7)	(25)
International operations subject to different tax rates	(39)	(6)	(8)
Deferred tax assets not recognized	15	41	4
Permanent differences and other	9	(3)	(7)
Total income tax expense (recovery)	$ 173	$ 15	$ (4)

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INCOME TAXES - Income Tax Recognized Directly in Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total income tax expense recognized directly in other comprehensive income	$ (200)	$ (75)	$ (141)
Revaluation of property, plant and equipment
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total income tax expense recognized directly in other comprehensive income	(204)	(90)	(130)
Cash flow hedges
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total income tax expense recognized directly in other comprehensive income	8	8	(15)
Other
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total income tax expense recognized directly in other comprehensive income	$ (4)	$ 7	$ 4

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PARTNERSHIP CAPITAL - Additional Information (Details) $ / shares in Units, $ / shares in Units, shares in Millions, $ in Millions, $ in Millions					1 Months Ended									12 Months Ended
	Jan. 23, 2018 USD ($) shares	Jan. 23, 2018 CAD ($) $ / shares shares	Jan. 26, 2017 USD ($) shares	Jan. 26, 2017 CAD ($) $ / shares shares	Sep. 30, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares	Aug. 31, 2016 USD ($) shares	Aug. 31, 2016 CAD ($) $ / shares shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2015 CAD ($) $ / shares shares	Apr. 30, 2015 USD ($) $ / shares shares	Mar. 31, 2015 USD ($) shares	Mar. 31, 2015 CAD ($) $ / shares shares	Dec. 31, 2017 USD ($) day $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) shares	Sep. 14, 2016 shares
Schedule of Partnership Units [Line Items]
Number of shares issued | shares																	115.0
Stock split conversion ratio																	1.5
Additional unit received for each unit held in stock split																	0.5
Partnership units issued, net of issuance costs | $														$ 992	$ 755	$ 932
Share issue related cost (less than) | $					$ 28	$ 20					$ 24
Repurchased and cancelled | $															6	67
Share repurchase related cost | $															$ 1	$ 1
Volume weighted average of trading price, number of trading days | day														5
Preferred Unitholders Capital
Schedule of Partnership Units [Line Items]
Issued for cash | shares														12.0	10.0	10.0
Preferred Unitholders Capital | Series 9 Preferred Units | Subsequent Event
Schedule of Partnership Units [Line Items]
Issued for cash | shares	8.0	8.0
Number of share issued, price per share | $ / shares		$ 25
Partnership units issued, net of issuance costs	$ 161	$ 200
Share issue related cost (less than) | $	$ 1
Quarterly fixed distribution rate	5.00%	5.00%
Underwriting related cost | $	$ 4
Preferred Unitholders Capital | Series 7 Preferred Units
Schedule of Partnership Units [Line Items]
Issued for cash | shares			12.0	12.0
Number of share issued, price per share | $ / shares				$ 25
Partnership units issued, net of issuance costs			$ 225	$ 300
Share issue related cost (less than) | $			$ 1
Quarterly fixed distribution rate			5.00%	5.00%
Underwriting related cost | $			$ 5
Preferred Unitholders Capital | Series 5 Preferred Units
Schedule of Partnership Units [Line Items]
Issued for cash | shares							10.0	10.0
Number of share issued, price per share | $ / shares								$ 25
Partnership units issued, net of issuance costs							$ 190	$ 250
Share issue related cost (less than) | $							$ 4
Quarterly fixed distribution rate							5.35%	5.35%
Preferred Unitholders Capital | Series 3 Preferred Units
Schedule of Partnership Units [Line Items]
Issued for cash | shares									5.0	5.0
Number of share issued, price per share | $ / shares										$ 25
Partnership units issued, net of issuance costs									$ 95	$ 125
Share issue related cost (less than) | $									$ 2
Quarterly fixed distribution rate									5.50%	5.50%
Preferred Unitholders Capital | Series 1 Preferred Units
Schedule of Partnership Units [Line Items]
Issued for cash | shares												5.0	5.0
Number of share issued, price per share | $ / shares													$ 25
Partnership units issued, net of issuance costs												$ 100	$ 125
Share issue related cost (less than) | $												$ 4
Quarterly fixed distribution rate												4.50%	4.50%
Special General Partner
Schedule of Partnership Units [Line Items]
Partnership distributions | $														$ 113	$ 80	$ 64
Weighted average number of shares outstanding | shares														1.6	1.6	1.6
Special General Partner | Partners' capital
Schedule of Partnership Units [Line Items]
Issued for cash | shares														0.0	0.0	0.0
Repurchased and cancelled | shares														0.0	0.0	0.0
Repurchased and cancelled | $														$ 0	$ 0	$ 0
Limited Partners
Schedule of Partnership Units [Line Items]
Increase in equity | $					$ 6	$ 16
Repurchased and cancelled | $															$ 6	$ 67
Weighted average number of shares outstanding | shares														264.6	244.7	238.9
Limited Partners | Partners' capital
Schedule of Partnership Units [Line Items]
Issued for cash | shares					16.6	15.6					20.0			17.2	16.4	20.2
Number of share issued, price per share | $ / shares					$ 42	$ 32					$ 30				$ 32
Partnership units issued, net of issuance costs | $					$ 700	$ 500					$ 600
Repurchased and cancelled | shares														0.0	0.2	2.5
Repurchased and cancelled | $														$ 0	$ 6	$ 67
Dividend reinvestment plan, unit issued (less than) | shares														1.0	1.0	1.0
Dividend reinvestment plan, proceeds | $														$ 20	$ 25	$ 6
Limited Partners | Partners' capital | Top of range
Schedule of Partnership Units [Line Items]
Repurchased and cancelled | shares															1.0
Special General Partner and Limited Partner | Partners' capital
Schedule of Partnership Units [Line Items]
Issued for cash | shares														17.2	16.4	20.2
Repurchased and cancelled | shares														0.0	0.2	2.5
Repurchased and cancelled | $														$ 0	$ 6	$ 67
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Partners' capital
Schedule of Partnership Units [Line Items]
Issued for cash | shares					7.4	8.1					12.2			7.4	8.1	12.2
Partnership units issued, net of issuance costs | $					$ 300	$ 250					$ 350
Weighted average number of shares outstanding | shares														110.6	100.9	96.9
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Partners' capital | Holding LP and other
Schedule of Partnership Units [Line Items]
Number of shares issued | shares														115.8
Incentive Distribution, $0.203 Threshold | Special General Partner | Holding LP and other | Holding LP’s units (other than Holding LP Class A Preferred Units)
Schedule of Partnership Units [Line Items]
Distributions threshold, per quarter, per share | $ / shares														$ 0.203
Distribution rights entitle as percent, threshold														15.00%
Incentive Distribution, $0.22 Threshold | Special General Partner | Holding LP and other | Holding LP’s units (other than Holding LP Class A Preferred Units)
Schedule of Partnership Units [Line Items]
Distributions threshold, per quarter, per share | $ / shares														$ 0.22
Distribution rights entitle as percent, threshold														25.00%

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PARTNERSHIP CAPITAL - Capital Cathegories (Details) - USD ($) shares in Millions, $ in Millions	1 Months Ended			12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	Apr. 30, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance as				$ 9,644	$ 7,176	$ 6,322
Changes in equity [abstract]
Unit issuance				992	755	932
Repurchased and cancelled					(6)	(67)
Balance as		$ 9,644		13,474	9,644	7,176
Limited Partners
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance as				4,611	3,838	3,533
Changes in equity [abstract]
Unit issuance				692	505	582
Repurchased and cancelled					(6)	(67)
Balance as		4,611		4,967	4,611	3,838
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance as				1,860	1,518	1,321
Changes in equity [abstract]
Unit issuance				300	250	350
Balance as		$ 1,860		2,012	1,860	1,518
Partners' capital | Special General Partner and Limited Partner
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance as				$ 4,234	$ 3,735	$ 3,220
Changes in equity [abstract]
Opening balance				261.0	244.8	227.1
Issued for cash				17.2	16.4	20.2
Repurchased and cancelled				0.0	(0.2)	(2.5)
Ending balance		261.0		278.2	261.0	244.8
Unit issuance				$ 692	$ 505	$ 582
Repurchased and cancelled				0	(6)	(67)
Balance as		$ 4,234		4,926	4,234	3,735
Partners' capital | Special General Partner
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance as				$ 19	$ 19	$ 19
Changes in equity [abstract]
Opening balance				1.6	1.6	1.6
Issued for cash				0.0	0.0	0.0
Repurchased and cancelled				0.0	0.0	0.0
Ending balance		1.6		1.6	1.6	1.6
Unit issuance				$ 0	$ 0	$ 0
Repurchased and cancelled				0	0	0
Balance as		$ 19		19	19	19
Partners' capital | Limited Partners
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance as				$ 4,215	$ 3,716	$ 3,201
Changes in equity [abstract]
Opening balance				259.4	243.2	225.5
Issued for cash	16.6	15.6	20.0	17.2	16.4	20.2
Repurchased and cancelled				0.0	(0.2)	(2.5)
Ending balance		259.4		276.6	259.4	243.2
Unit issuance				$ 692	$ 505	$ 582
Repurchased and cancelled				0	(6)	(67)
Balance as		$ 4,215		4,907	4,215	3,716
Partners' capital | Non-Controlling Interest—Redeemable Partnership Units held by Brookfield
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance as				$ 1,778	$ 1,528	$ 1,178
Changes in equity [abstract]
Opening balance				108.4	100.3	88.1
Issued for cash	7.4	8.1	12.2	7.4	8.1	12.2
Ending balance		108.4		115.8	108.4	100.3
Unit issuance				$ 300	$ 250	$ 350
Balance as		$ 1,778		2,078	1,778	1,528
Preferred Unitholders Capital
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance as				$ 375	$ 189	$ 0
Changes in equity [abstract]
Opening balance				20.0	10.0	0.0
Issued for cash				12.0	10.0	10.0
Ending balance		20.0		32.0	20.0	10.0
Unit issuance				$ 220	$ 186	$ 189
Balance as		$ 375		$ 595	$ 375	$ 189

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ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		$ 9,644	$ 7,176	$ 6,322
Other comprehensive income (loss)		323	576	(202)
Other items (note 26)		0	9	0
Balance as		13,474	9,644	7,176
Limited Partners
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		4,611	3,838	3,533
Other comprehensive income (loss)		128	358	(86)
Other items (note 26)		6	17	49
Balance as		4,967	4,611	3,838
Limited Partners | Accumulated Other Comprehensive Income
Disclosure of analysis of other comprehensive income by item [line items]
Balance as	[1]	736	555	655
Other comprehensive income (loss)	[1]	128	358	(86)
Other items (note 26)	[1]		(177)	(6)
Balance as	[1]	864	736	555
Limited Partners | Revaluation Surplus
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		957	1,042
Other comprehensive income (loss)		19	93
Other items (note 26)			(178)
Balance as		976	957	1,042
Limited Partners | Foreign Currency Translation
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		(891)	(889)
Other comprehensive income (loss)		56	(5)
Other items (note 26)			3
Balance as		(835)	(891)	(889)
Limited Partners | Net Investment Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		215	99
Other comprehensive income (loss)		(187)	117
Other items (note 26)			(1)
Balance as		28	215	99
Limited Partners | Cash Flow Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		(130)	(140)
Other comprehensive income (loss)		104	9
Other items (note 26)			1
Balance as		(26)	(130)	(140)
Limited Partners | Available for sale
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		(4)	(9)
Other comprehensive income (loss)		4	5
Other items (note 26)			0
Balance as		0	(4)	(9)
Limited Partners | Unrealized Actuarial Losses
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		(30)	(13)
Other comprehensive income (loss)		3	(17)
Other items (note 26)			0
Balance as		(27)	(30)	(13)
Limited Partners | Equity accounted investments
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		619	465
Other comprehensive income (loss)		129	156
Other items (note 26)			(2)
Balance as		748	619	465
General Partner
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		27	23	24
Other comprehensive income (loss)		(1)	4	(1)
Balance as		25	27	23
General Partner | Accumulated Other Comprehensive Income
Disclosure of analysis of other comprehensive income by item [line items]
Balance as	[1]	7	4	5
Other comprehensive income (loss)	[1]	(1)	4	(1)
Other items (note 26)	[1]		(1)
Balance as	[1]	6	7	4
General Partner | Revaluation Surplus
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		7	7
Other comprehensive income (loss)		0	1
Other items (note 26)			(1)
Balance as		7	7	7
General Partner | Foreign Currency Translation
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		(5)	(5)
Other comprehensive income (loss)		(1)	0
Other items (note 26)			0
Balance as		(6)	(5)	(5)
General Partner | Net Investment Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		3	1
Other comprehensive income (loss)		(2)	2
Other items (note 26)			0
Balance as		1	3	1
General Partner | Cash Flow Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		(1)	(1)
Other comprehensive income (loss)		1	0
Other items (note 26)			0
Balance as		0	(1)	(1)
General Partner | Available for sale
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		0	0
Other comprehensive income (loss)		0	0
Other items (note 26)			0
Balance as		0	0	0
General Partner | Unrealized Actuarial Losses
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		0	0
Other comprehensive income (loss)		0	0
Other items (note 26)			0
Balance as		0	0	0
General Partner | Equity accounted investments
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		3	2
Other comprehensive income (loss)		1	1
Other items (note 26)			0
Balance as		4	3	2
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		1,860	1,518	1,321
Other comprehensive income (loss)		56	147	(32)
Other items (note 26)		(6)	(15)	(49)
Balance as		2,012	1,860	1,518
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Accumulated Other Comprehensive Income
Disclosure of analysis of other comprehensive income by item [line items]
Balance as	[1]	331	254	283
Other comprehensive income (loss)	[1]	56	147	(32)
Other items (note 26)	[1]		(70)	6
Balance as	[1]	387	331	254
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Revaluation Surplus
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		417	447
Other comprehensive income (loss)		8	38
Other items (note 26)			(68)
Balance as		425	417	447
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Foreign Currency Translation
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		(365)	(358)
Other comprehensive income (loss)		26	(4)
Other items (note 26)			(3)
Balance as		(339)	(365)	(358)
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Net Investment Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		88	38
Other comprehensive income (loss)		(77)	49
Other items (note 26)			1
Balance as		11	88	38
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Cash Flow Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		(58)	(61)
Other comprehensive income (loss)		44	4
Other items (note 26)			(1)
Balance as		(14)	(58)	(61)
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Available for sale
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		(3)	(4)
Other comprehensive income (loss)		1	2
Other items (note 26)			(1)
Balance as		(2)	(3)	(4)
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Unrealized Actuarial Losses
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		(9)	(2)
Other comprehensive income (loss)		1	(7)
Other items (note 26)			0
Balance as		(8)	(9)	(2)
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Equity accounted investments
Disclosure of analysis of other comprehensive income by item [line items]
Balance as		261	194
Other comprehensive income (loss)		53	65
Other items (note 26)			2
Balance as		$ 314	$ 261	$ 194

[1] Refer to Note 27, Accumulated Other Comprehensive Income (Loss) for an analysis of accumulated other comprehensive income (loss) by item.

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DISTRIBUTIONS (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Feb. 08, 2018
Disclosure of classes of share capital [line items]
Partnership distributions	$ 764	$ 615	$ 543
Preferred Unitholders Capital
Disclosure of classes of share capital [line items]
Partnership distributions	$ 30	13	3
Partnership distributions (usd per share)	$ 0.94
Subsequent Event
Disclosure of classes of share capital [line items]
Increase in dividends payable per share, percent				8.00%
Quarterly distribution (usd per share)				$ 0.47
Partnership Unitholders Excluding Special General Partner
Disclosure of classes of share capital [line items]
Partnership distributions	$ 651	$ 535	$ 479
Partnership distributions (usd per share)	$ 1.74	$ 1.55	$ 1.41
Special General Partner
Disclosure of classes of share capital [line items]
Partnership distributions	$ 113	$ 80	$ 64

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CONTINGENT ASSETS & LIABILITIES (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Contingent liability for guarantees
Disclosure of contingent liabilities [line items]
Contingent liabilities related to third parties	$ 182	$ 141

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CONTRACTUAL COMMITMENTS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Contractual Commitments [Abstract]
Contractual commitments	$ 1,448	$ 1,201
Asset management fee as percent per quarter	0.3125%
Asset management fee, percent	1.25%
Less than 1 year
Disclosure of contingent liabilities [line items]
Contractual capital commitments, maturity, percent	32.00%
1 to 5 years
Disclosure of contingent liabilities [line items]
Contractual capital commitments, maturity, percent	42.00%
Thereafter
Disclosure of contingent liabilities [line items]
Contractual capital commitments, maturity, percent	26.00%

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RETIREMENT BENEFIT PLANS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Employee Benefits [Abstract]
Benefit plans' expense	$ 10	$ 7	$ 1
Discount rates	4.10%	4.20%	6.10%
Rates of compensation	3.50%	3.50%	3.30%
Surplus (deficit) in plan [abstract]
Plan assets	$ 228	$ 198
Less accrued benefit obligation	(328)	(296)
Accrued benefit liability	$ (100)	$ (98)

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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of transactions between related parties [line items]
Directors' fees (less than)	$ 1	$ 1	$ 1
Asset management fee as percent per quarter	0.3125%
Asset management fee, percent	1.25%
Service Provider
Disclosure of transactions between related parties [line items]
Asset management fee as percent per quarter	0.3125%
Asset management fee, percent	1.25%
Services received, related party transactions	$ 230	158	126
Amounts payable, related party transactions	64	42
Services reimbursed, related party transactions	6	5	8
Brookfield
Disclosure of transactions between related parties [line items]
Deposit balance	1	255
Earned interest on deposits	1	1	1
Subsidiary of Common Parent (Brookfield)
Disclosure of transactions between related parties [line items]
Services received, related party transactions	1	1	1
Amounts payable, related party transactions	75	75
Amounts receivable, related party transactions	$ 20	20
Subsidiary of Common Parent (Brookfield) | Top of range
Disclosure of transactions between related parties [line items]
Amounts payable, related party transactions, interest rate	3.80%
Subsidiary of Common Parent (Brookfield) | Bottom of range
Disclosure of transactions between related parties [line items]
Amounts payable, related party transactions, interest rate	8.50%
Subsidiary of Common Parent (Brookfield) | Brookfield Office Properties Inc.
Disclosure of transactions between related parties [line items]
Services received, related party transactions	$ 4	1	1
Revenue from rendering of services, related party transactions	8	$ 1	$ 1
Subsidiary of Common Parent (Brookfield) | Brookfield Business Partners LP
Disclosure of transactions between related parties [line items]
Revenue from sale of goods, related party transactions	$ 2

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DERIVATIVE FINANCIAL INSTRUMENTS - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	$ 8,829	$ 8,904
Interest rate and cross currency interest rate swap contracts
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	4,843	4,261
Financial assets at fair value through profit or loss, category [member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	2,433	2,258
Financial assets at fair value through profit or loss, category [member] | Interest rate and cross currency interest rate swap contracts
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	816	752
Financial assets at fair value through profit or loss, category [member] | Inflation linked swap contract
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	$ 170	$ 155

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DERIVATIVE FINANCIAL INSTRUMENTS - Notional Amount of Derivative Positions (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about hedging instruments [line items]
Nominal amount of hedging instrument	$ 8,829	$ 8,904
Foreign exchange contracts
Disclosure of detailed information about hedging instruments [line items]
Nominal amount of hedging instrument	3,816	4,488
Interest rates swaps and other
Disclosure of detailed information about hedging instruments [line items]
Nominal amount of hedging instrument	$ 5,013	$ 4,416

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DERIVATIVE FINANCIAL INSTRUMENTS - Change in Fair Values of Derivative Instruments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about hedging instruments [line items]
Unrealized Gains on Derivative Financial Assets	$ 132
Unrealized Losses on Derivative Financial Liabilities	(374)
Net Change	(242)	$ 112
Foreign exchange contracts
Disclosure of detailed information about hedging instruments [line items]
Unrealized Gains on Derivative Financial Assets	0
Unrealized Losses on Derivative Financial Liabilities	(305)
Net Change	(305)	97
Interest rates swaps and other
Disclosure of detailed information about hedging instruments [line items]
Unrealized Gains on Derivative Financial Assets	132
Unrealized Losses on Derivative Financial Liabilities	(69)
Net Change	$ 63	$ 15

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DERIVATIVE FINANCIAL INSTRUMENTS - Notional Amount of Foreign Exchange Derivative Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 8,829	$ 8,904
Foreign exchange contracts
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	3,816	4,488
Foreign exchange contracts | Australian dollars
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 1,214	$ 2,133
Average Exchange Rate	74.00%	73.00%
Foreign exchange contracts | British pounds
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 2,069	$ 1,810
Average Exchange Rate	130.00%	130.00%
Foreign exchange contracts | European Union euros
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 491	$ 374
Average Exchange Rate	117.00%	114.00%
Foreign exchange contracts | Brazilian reais
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 0	$ 144
Average Exchange Rate	0.00%	337.00%
Foreign exchange contracts | Canadian dollars
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 42	$ 27
Average Exchange Rate	77.00%	76.00%

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DERIVATIVE FINANCIAL INSTRUMENTS - Notional Amount of Derivative Instruments Fair Value Through Profit or Loss (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	$ 8,829	$ 8,904
Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	2,433	2,258
Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	6,396	6,645
Less than 1 year | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	913
Less than 1 year | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	1,887
1 to 5 years | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	1,291
1 to 5 years | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	2,632
Thereafter | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	229
Thereafter | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	1,877
Foreign exchange contracts
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	3,816	4,488
Foreign exchange contracts | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	1,447	1,351
Foreign exchange contracts | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	2,369	3,136
Foreign exchange contracts | Less than 1 year | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	640
Foreign exchange contracts | Less than 1 year | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	1,788
Foreign exchange contracts | 1 to 5 years | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	807
Foreign exchange contracts | 1 to 5 years | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	581
Foreign exchange contracts | Thereafter | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	0
Foreign exchange contracts | Thereafter | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	0
Interest rate and cross currency interest rate swaps
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	4,843	4,261
Interest rate and cross currency interest rate swaps | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	816	752
Interest rate and cross currency interest rate swaps | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	4,027	3,509
Interest rate and cross currency interest rate swaps | Less than 1 year | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	273
Interest rate and cross currency interest rate swaps | Less than 1 year | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	99
Interest rate and cross currency interest rate swaps | 1 to 5 years | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	484
Interest rate and cross currency interest rate swaps | 1 to 5 years | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	2,051
Interest rate and cross currency interest rate swaps | Thereafter | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	59
Interest rate and cross currency interest rate swaps | Thereafter | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	1,877
Inflation linked swaps | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	170	$ 155
Inflation linked swaps | Less than 1 year | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	0
Inflation linked swaps | 1 to 5 years | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	0
Inflation linked swaps | Thereafter | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	$ 170

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DERIVATIVE FINANCIAL INSTRUMENTS - Hedge Classification (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	$ 8,829	$ 8,904
Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	6,396	6,645
Effective Portion	(182)	83
Ineffective Portion	0	1
Cash flow hedges | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	4,027	3,509
Effective Portion	15	30
Ineffective Portion	0	1
Net investment hedges | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Total Notional Amount	2,369	3,136
Effective Portion	(197)	53
Ineffective Portion	$ 0	$ 0

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FINANCIAL RISK MANAGEMENT FINANCIAL RISK MANAGEMENT - Additional Information (Details) - USD ($)	2 Months Ended	12 Months Ended
	Mar. 13, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about borrowings [line items]
Financial assets		$ 2,134,000,000	$ 2,412,000,000
Subsidiary and corporate borrowings		10,164,000,000	8,326,000,000
Letter of credit outstanding amount		106,000,000	46,000,000
Credit facility
Disclosure of detailed information about borrowings [line items]
Credit facility, maximum borrowing capacity		500,000,000
Subsidiary and corporate borrowings		0	0
Corporate revolving credit facility
Disclosure of detailed information about borrowings [line items]
Credit facility, maximum borrowing capacity		1,975,000,000.000
Subsidiary and corporate borrowings		789,000,000	0
Letter of credit outstanding amount		106,000,000	46,000,000
Marketable securities
Disclosure of detailed information about borrowings [line items]
Financial assets		85,000,000	$ 3,000,000
Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% change in value of investments on Equity		9,000,000
Impact of 10% change in value of investments on Comprehensive Income		$ 9,000,000
Subsequent Event
Disclosure of detailed information about borrowings [line items]
Cancellation of letters of credit	$ 59,000,000
Subsequent Event | Credit facility
Disclosure of detailed information about borrowings [line items]
Subsidiary and corporate borrowings	$ 400,000,000

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FINANCIAL RISK MANAGEMENT FINANCIAL RISK MANAGEMENT - Capital Structure (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financial Instruments [Abstract]
Subsidiary and corporate borrowings	$ 10,164	$ 8,326
Preferred shares	20	20
Cash and cash equivalents	(459)	(789)
Total partnership capital	9,725	7,557
Total partnership capital	13,474	9,644	$ 7,176	$ 6,322
Total capital and net debt	$ 23,199	$ 17,201
Net debt to capitalization ratio	42.00%	44.00%

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FINANCIAL RISK MANAGEMENT FINANCIAL RISK MANAGEMENT - Liquidity (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Financial Instruments [Abstract]
Corporate cash and financial assets	$ 205	$ 549
Availability under committed credit facilities	2,475	2,475
Draws on credit facility	(789)	0
Commitments under credit facility	(106)	(46)
Corporate liquidity	$ 1,785	$ 2,978

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FINANCIAL RISK MANAGEMENT - Maturity Analysis of Financial Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Accounts payable and other liabilities	$ 1,043	$ 786
Corporate borrowings	2,101	1,002
Non-recourse borrowings	8,087	7,336
Financial liabilities (current and non-current)	1,313	381
Interest Expense:
Corporate borrowings	227	147
Non-recourse borrowings	2,936	3,024
Less than 1 year
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Accounts payable and other liabilities	646	540
Corporate borrowings	99	295
Non-recourse borrowings	372	286
Financial liabilities (current and non-current)	237	229
Interest Expense:
Corporate borrowings	49	40
Non-recourse borrowings	381	361
1-2 years
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Accounts payable and other liabilities	45	34
Corporate borrowings	0	93
Non-recourse borrowings	571	233
Financial liabilities (current and non-current)	58	29
Interest Expense:
Corporate borrowings	47	29
Non-recourse borrowings	348	342
2-5 years
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Accounts payable and other liabilities	59	26
Corporate borrowings	1,445	279
Non-recourse borrowings	2,043	1,708
Financial liabilities (current and non-current)	930	49
Interest Expense:
Corporate borrowings	106	64
Non-recourse borrowings	864	871
5 plus years
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Accounts payable and other liabilities	293	186
Corporate borrowings	557	335
Non-recourse borrowings	5,101	5,109
Financial liabilities (current and non-current)	88	74
Interest Expense:
Corporate borrowings	25	14
Non-recourse borrowings	$ 1,343	$ 1,450

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FINANCIAL RISK MANAGEMENT FINANCIAL RISK MANAGEMENT - Sensitivity Analysis for Interest Rate Risk (Details) - Interest rate risk - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10 bp decrease on Net income (loss)	$ 0	$ 1	$ 2
Impact of 10 bp increase on Net income (loss)	0	(1)	(2)
Impact of 10 bp decrease on Other comprehensive (loss) income	(1)	(1)	(2)
Impact of 10 bp increase on Other comprehensive (loss) income	$ 1	$ 1	$ 2

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FINANCIAL RISK MANAGEMENT FINANCIAL RISK MANAGEMENT - Currency Exposure (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Assets:
Current Assets	$ 1,512	$ 1,632	$ 1,553
Non-Current Assets	27,965	19,643	16,182
Total assets	29,477	21,275	17,735
Liabilities:
Current Liabilities	1,564	1,515	1,210
Non-Current Liabilities	14,439	10,116	9,349
Total liabilities	16,003	11,631	10,559
Non-controlling interest—in operating subsidiaries and preferred unitholders	6,470	3,146	1,797
Non-controlling interest—Redeemable Partnership Units held by Brookfield	2,012	1,860	1,518
Net investment	4,992	4,638	3,861
USD
Assets:
Current Assets	358	849	234
Non-Current Assets	4,400	3,744	2,485
Total assets	4,758	4,593	2,719
Liabilities:
Current Liabilities	641	833	502
Non-Current Liabilities	3,093	1,636	1,714
Total liabilities	3,734	2,469	2,216
Non-controlling interest—in operating subsidiaries and preferred unitholders	602	919	377
Non-controlling interest—Redeemable Partnership Units held by Brookfield	(50)	344	36
Net investment	472	861	90
AUD
Assets:
Current Assets	276	214	380
Non-Current Assets	5,770	5,542	5,816
Total assets	6,046	5,756	6,196
Liabilities:
Current Liabilities	227	206	103
Non-Current Liabilities	3,983	3,764	3,745
Total liabilities	4,210	3,970	3,848
Non-controlling interest—in operating subsidiaries and preferred unitholders	417	370	269
Non-controlling interest—Redeemable Partnership Units held by Brookfield	407	405	587
Net investment	1,012	1,011	1,492
GBP
Assets:
Current Assets	151	127	470
Non-Current Assets	4,431	3,739	3,927
Total assets	4,582	3,866	4,397
Liabilities:
Current Liabilities	414	262	434
Non-Current Liabilities	2,614	2,243	2,312
Total liabilities	3,028	2,505	2,746
Non-controlling interest—in operating subsidiaries and preferred unitholders	396	333	385
Non-controlling interest—Redeemable Partnership Units held by Brookfield	332	294	357
Net investment	826	734	909
BRL
Assets:
Current Assets	322	42	6
Non-Current Assets	8,184	1,895	1,020
Total assets	8,506	1,937	1,026
Liabilities:
Current Liabilities	73	23	0
Non-Current Liabilities	2,015	0	0
Total liabilities	2,088	23	0
Non-controlling interest—in operating subsidiaries and preferred unitholders	3,082	189	141
Non-controlling interest—Redeemable Partnership Units held by Brookfield	959	493	249
Net investment	2,377	1,232	636
CLP
Assets:
Current Assets	85	102	126
Non-Current Assets	1,117	1,070	1,052
Total assets	1,202	1,172	1,178
Liabilities:
Current Liabilities	59	50	30
Non-Current Liabilities	989	941	902
Total liabilities	1,048	991	932
Non-controlling interest—in operating subsidiaries and preferred unitholders	75	89	121
Non-controlling interest—Redeemable Partnership Units held by Brookfield	23	26	35
Net investment	56	66	90
CAD
Assets:
Current Assets	78	18	291
Non-Current Assets	814	677	636
Total assets	892	695	927
Liabilities:
Current Liabilities	55	35	122
Non-Current Liabilities	443	309	334
Total liabilities	498	344	456
Non-controlling interest—in operating subsidiaries and preferred unitholders	891	261	248
Non-controlling interest—Redeemable Partnership Units held by Brookfield	28	26	63
Net investment	(525)	64	160
EUR
Assets:
Current Assets	0	0	0
Non-Current Assets	836	718	618
Total assets	836	718	618
Liabilities:
Current Liabilities	0	0	0
Non-Current Liabilities	0	0	0
Total liabilities	0	0	0
Non-controlling interest—in operating subsidiaries and preferred unitholders	0	0	0
Non-controlling interest—Redeemable Partnership Units held by Brookfield	240	206	175
Net investment	596	512	443
COP
Assets:
Current Assets	68	55	46
Non-Current Assets	764	700	629
Total assets	832	755	675
Liabilities:
Current Liabilities	26	27	20
Non-Current Liabilities	438	369	342
Total liabilities	464	396	362
Non-controlling interest—in operating subsidiaries and preferred unitholders	302	294	256
Non-controlling interest—Redeemable Partnership Units held by Brookfield	19	19	16
Net investment	47	46	$ 41
PEN
Assets:
Current Assets	100	127
Non-Current Assets	1,356	1,260
Total assets	1,456	1,387
Liabilities:
Current Liabilities	18	27
Non-Current Liabilities	673	636
Total liabilities	691	663
Non-controlling interest—in operating subsidiaries and preferred unitholders	644	610
Non-controlling interest—Redeemable Partnership Units held by Brookfield	35	33
Net investment	86	81
INR
Assets:
Current Assets	57	52
Non-Current Assets	256	265
Total assets	313	317
Liabilities:
Current Liabilities	30	36
Non-Current Liabilities	185	186
Total liabilities	215	222
Non-controlling interest—in operating subsidiaries and preferred unitholders	60	58
Non-controlling interest—Redeemable Partnership Units held by Brookfield	11	11
Net investment	27	26
NZD
Assets:
Current Assets	17	46
Non-Current Assets	37	33
Total assets	54	79
Liabilities:
Current Liabilities	21	16
Non-Current Liabilities	6	32
Total liabilities	27	48
Non-controlling interest—in operating subsidiaries and preferred unitholders	1	23
Non-controlling interest—Redeemable Partnership Units held by Brookfield	8	3
Net investment	$ 18	$ 5

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FINANCIAL RISK MANAGEMENT FINANCIAL RISK MANAGEMENT - Sensitivity Analysis For Foreign Currency Risk (Details) - Foreign currency risk - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
AUD
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	$ (18)	$ (2)	$ 8
Impact of 10% increase on Net income (loss)	18	2	(8)
Impact of 10% decrease on Partnership Capital	0	0	24
Impact of 10% increase on Partnership Capital	0	0	(24)
EUR
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	(9)	(8)	5
Impact of 10% increase on Net income (loss)	9	8	(5)
Impact of 10% decrease on Partnership Capital	0	35	18
Impact of 10% increase on Partnership Capital	0	(35)	(18)
GBP
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	(3)	(6)	5
Impact of 10% increase on Net income (loss)	3	6	(5)
Impact of 10% decrease on Partnership Capital	0	0	23
Impact of 10% increase on Partnership Capital	0	0	(23)
COP
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Partnership Capital	7	6	6
Impact of 10% increase on Partnership Capital	(7)	(6)	(6)
BRL
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	21	14	0
Impact of 10% increase on Net income (loss)	(21)	(14)	0
Impact of 10% decrease on Partnership Capital	334	172	89
Impact of 10% increase on Partnership Capital	(334)	(172)	(89)
CLP
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	1	0	1
Impact of 10% increase on Net income (loss)	(1)	0	(1)
Impact of 10% decrease on Partnership Capital	8	10	13
Impact of 10% increase on Partnership Capital	(8)	(10)	(13)
CAD
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	(1)	(1)	1
Impact of 10% increase on Net income (loss)	1	1	(1)
Impact of 10% decrease on Partnership Capital	0	0	11
Impact of 10% increase on Partnership Capital	0	0	(11)
PEN
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	0	0	0
Impact of 10% increase on Net income (loss)	0	0	0
Impact of 10% decrease on Partnership Capital	12	11	0
Impact of 10% increase on Partnership Capital	(12)	(11)	0
INR
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	0	0	0
Impact of 10% increase on Net income (loss)	0	0	0
Impact of 10% decrease on Partnership Capital	4	4	0
Impact of 10% increase on Partnership Capital	$ (4)	$ (4)	$ 0

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CAPITAL MANAGEMENT - Invested Capital (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Disclosure of Capital Management [Abstract]
Total partnership capital	$ 13,474	$ 9,644	$ 7,176	$ 6,322
Non-controlling interest - in operating subsidiaries	(5,875)	(2,771)
Deficit	1,366	697
Accumulated other comprehensive income	(1,257)	(1,074)
Ownership changes	(109)	(109)
Invested Capital	$ 7,599	$ 6,387	$ 5,452
Bottom of range
Disclosure of objectives, policies and processes for managing capital [line items]
Targeted returns on invested capital	12.00%
Top of range
Disclosure of objectives, policies and processes for managing capital [line items]
Targeted returns on invested capital	15.00%

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CAPITAL MANAGEMENT Changes in Invested Capital (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Changes in Invested capital [Roll Forward]
Opening balance	$ 6,387	$ 5,452
Issuance of preferred units	220	186	$ 189
Issuance of limited partnership units and redeemable partnership units	992	749
Ending balance	7,599	6,387	$ 5,452
Weighted Average Invested Capital	$ 6,885	$ 5,592

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SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash Flow Statement [Abstract]
Interest paid	$ 451	$ 366	$ 332
Income taxes paid	132	33	22
Changes in non-cash working capital
Accounts receivable	(31)	31	27
Prepayments and other	4	3	1
Accounts payable and other	158	11	(110)
Changes in non-cash working capital, net	$ 131	$ 45	$ (82)