10-Q

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

_____________________________________________ 

FORM 10-Q

_____________________________________________ 

Quarterly Report Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

For the quarterly period ended June 30, 2015

_____________________________________________ 

Marsh & McLennan Companies, Inc.

1166 Avenue of the Americas

New York, New York 10036

(212) 345-5000

_____________________________________________ 

Commission file number 1-5998

State of Incorporation: Delaware

I.R.S. Employer Identification No. 36-2668272

_____________________________________________ 

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  ý    No  ¨

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

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act. (Check one):

Large Accelerated Filer  x	Accelerated Filer  ¨
Non-Accelerated Filer  ¨(Do not check if a smaller reporting company)	Smaller Reporting Company  ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).     Yes  ¨    No  ý

As of July 24, 2015, there were outstanding 529,992,560 shares of common stock, par value $1.00 per share, of the registrant.

INFORMATION CONCERNING FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q contains "forward-looking statements," as defined in the Private Securities Litigation Reform Act of 1995. These statements, which express management's current views concerning future events or results, use words like "anticipate," "assume," "believe," "continue," "estimate," "expect," "future," "intend," "plan," "project" and similar terms, and future or conditional tense verbs like "could," "may," "might," "should," "will" and "would." For example, we may use forward-looking statements when addressing topics such as: the outcome of contingencies; the expected impact of acquisitions and dispositions; the impact of competition; pension obligations; the impact of foreign currency exchange rates; our effective tax rates; changes in our business strategies and methods of generating revenue; the development and performance of our services and products; changes in the composition or level of our revenues; our cost structure, dividend policy, cash flow and liquidity; future actions by regulators; and the impact of changes in accounting rules.

Forward-looking statements are subject to inherent risks and uncertainties. Factors that could cause actual results to differ materially from those expressed or implied in our forward-looking statements include, among other things:

• our ability to maintain adequate safeguards to protect the security of confidential, personal or proprietary information, and the potential for the improper disclosure or use of such information, whether due to human error, improper action by employees, vendors or third parties, or as a result of a cyberattack;

• the impact of competition on our business, including the impact of our corporate tax rate, which is higher than the tax rate of our international competitors;

• the impact of fluctuations in foreign currency exchange rates, particularly in light of the recent strengthening of the U.S. dollar against most other currencies worldwide;

• the impact on our global pension obligations of changes in discount rates and asset returns, as well as projected salary increases, mortality rates, demographics, and inflation, and the impact of cash contributions required to be made to our global defined benefit pension plans due to changes in the funded status of those plans;

• our exposure to potential liabilities arising from errors and omissions claims against us;

• our exposure to potential civil remedies or criminal penalties if we fail to comply with foreign and U.S. laws that are applicable in the domestic and international jurisdictions in which we operate;

• the extent to which we are able to retain existing clients and attract new business, and our ability to effectively incentivize and retain key employees;

• our ability to make acquisitions and dispositions and to integrate, and realize expected synergies, savings or benefits from, the businesses we acquire;

• our ability to successfully recover should we experience a disaster or other business continuity problem;

• the impact of changes in interest rates and deterioration of counterparty credit quality on our cash balances and the performance of our investment portfolios;

• the impact of potential rating agency actions on our cost of financing and ability to borrow, as well as on our operating costs and competitive position;

• changes in applicable tax or accounting requirements; and

• potential income statement effects from the application of FASB's ASC Topic No. 740 ("Income Taxes”) regarding accounting treatment of uncertain tax benefits and valuation allowances, including the effect of any subsequent adjustments to the estimates we use in applying this accounting standard.

The factors identified above are not exhaustive. Marsh & McLennan Companies and its subsidiaries operate in a dynamic business environment in which new risks may emerge frequently. Accordingly, we caution readers not to place undue reliance on any forward-looking statements, which are based only on information currently available to us and speak only as of the dates on which they are made. The Company undertakes no obligation to update or revise any forward-looking statement to reflect events or circumstances arising after the date on which it is made. Further information concerning Marsh & McLennan Companies and its businesses, including information about factors that could materially affect our results of operations and financial condition, is contained in the Company's filings with the Securities and Exchange Commission, including the "Risk Factors" section and the "Management’s Discussion and Analysis of Financial Condition and Results of Operations" section of our most recently filed Annual Report on Form 10-K.

2

TABLE OF CONTENTS

PART I. FINANCIAL INFORMATION		4
ITEM 1.	FINANCIAL STATEMENTS (UNAUDITED)	4
	CONSOLIDATED STATEMENTS OF INCOME	4
	CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME	5
	CONSOLIDATED BALANCE SHEETS	6
	CONSOLIDATED BALANCE SHEETS (Continued)	7
	CONSOLIDATED STATEMENTS OF CASH FLOWS	8
	CONSOLIDATED STATEMENTS OF EQUITY	9
	NOTES TO CONSOLIDATED FINANCIAL STATEMENTS	10
ITEM 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS	29
	OF OPERATIONS
ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	40
ITEM 4.	CONTROLS & PROCEDURES	41
PART II. OTHER INFORMATION		42
ITEM 1.	LEGAL PROCEEDINGS	42
ITEM 1A.	RISK FACTORS	42
ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	42
ITEM 3.	DEFAULTS UPON SENIOR SECURITIES	43
ITEM 4.	MINE SAFETY DISCLOSURE	43
ITEM 5.	OTHER INFORMATION	43
ITEM 6.	EXHIBITS	43

3

PART I.    FINANCIAL INFORMATION

Item 1. Financial Statements.

MARSH & McLENNAN COMPANIES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

(Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
(In millions, except per share figures)	2015			2014			2015			2014
Revenue	$	3,225		$	3,300		$	6,440		$	6,564
Expense:
Compensation and benefits	1,826			1,876			3,556			3,715
Other operating expenses	770			777			1,520			1,529
Operating expenses	2,596			2,653			5,076			5,244
Operating income	629			647			1,364			1,320
Interest income	3			5			6			10
Interest expense	(40		)	(42		)	(76		)	(84		)
Investment income (loss)	3			(2		)	5			11
Income before income taxes	595			608			1,299			1,257
Income tax expense	166			168			372			360
Income from continuing operations	429			440			927			897
Discontinued operations, net of tax	—			(2		)	(3		)	(3		)
Net income before non-controlling interests	429			438			924			894
Less: Net income attributable to non-controlling interests	10			7			23			20
Net income attributable to the Company	$	419		$	431		$	901		$	874
Basic net income per share – Continuing operations	$	0.78		$	0.79		$	1.68		$	1.60
– Net income attributable to     the Company	$	0.78		$	0.78		$	1.68		$	1.59
Diluted net income per share – Continuing operations	$	0.77		$	0.78		$	1.66		$	1.58
– Net income attributable to     the Company	$	0.77		$	0.77		$	1.66		$	1.57
Average number of shares outstanding – Basic	535			549			537			548
– Diluted	541			556			543			556
Shares outstanding at June 30	531			546			531			546

The accompanying notes are an integral part of these consolidated statements.

4

MARSH & McLENNAN COMPANIES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
(In millions)	2015			2014			2015			2014
Net income before non-controlling interests	$	429		$	438		$	924		$	894
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	246			136			(180		)	207
Gain (loss) related to pension/post-retirement plans	(83		)	(42		)	153			(241		)
Other comprehensive (loss) income, before tax	163			94			(27		)	(34		)
Income tax expense (credit) on other comprehensive income	(4		)	(7		)	49			(48		)
Other comprehensive (loss) income, net of tax	167			101			(76		)	14
Comprehensive income	596			539			848			908
Less: comprehensive income attributable to non-controlling interest	10			7			23			20
Comprehensive income attributable to the Company	$	586		$	532		$	825		$	888

The accompanying notes are an integral part of these consolidated statements.

5

MARSH & McLENNAN COMPANIES, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Unaudited)

(In millions, except share and per share figures)	June 30, 2015			December 31, 2014
ASSETS
Current assets:
Cash and cash equivalents	$	930		$	1,958
Receivables
Commissions and fees	3,404			3,142
Advanced premiums and claims	54			50
Other	297			280
	3,755			3,472
Less-allowance for doubtful accounts and cancellations	(96		)	(95		)
Net receivables	3,659			3,377
Current deferred tax assets	475			521
Other current assets	235			199
Total current assets	5,299			6,055
Goodwill and intangible assets	8,155			7,933
Fixed assets (net of accumulated depreciation and amortization of $1,663 at June 30, 2015 and $1,639 at December 31, 2014)	807			809
Pension related assets	1,148			967
Deferred tax assets	785			876
Other assets	1,219			1,200
	$	17,413		$	17,840

The accompanying notes are an integral part of these consolidated statements.

6

MARSH & McLENNAN COMPANIES, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS (Continued)

(Unaudited)

(In millions, except share and per share figures)	June 30, 2015			December 31, 2014
LIABILITIES AND EQUITY
Current liabilities:
Short-term debt	$	111		$	11
Accounts payable and accrued liabilities	1,748			1,883
Accrued compensation and employee benefits	974			1,633
Accrued income taxes	209			178
Dividends payable	166			—
Total current liabilities	3,208			3,705
Fiduciary liabilities	4,869			4,552
Less – cash and investments held in a fiduciary capacity	(4,869		)	(4,552		)
	—			—
Long-term debt	3,825			3,376
Pension, post-retirement and post-employment benefits	2,072			2,244
Liabilities for errors and omissions	357			341
Other liabilities	1,079			1,041
Commitments and contingencies	—			—
Equity:
Preferred stock, $1 par value, authorized 6,000,000 shares, none issued	—			—
Common stock, $1 par value, authorized
1,600,000,000 shares, issued 560,641,640 shares at June 30, 2015
and December 31, 2014	561			561
Additional paid-in capital	842			930
Retained earnings	10,768			10,335
Accumulated other comprehensive loss	(3,923		)	(3,847		)
Non-controlling interests	89			79
	8,337			8,058
Less – treasury shares, at cost, 29,276,148 shares at June 30, 2015
and 20,499,596 shares at December 31, 2014	(1,465		)	(925		)
Total equity	6,872			7,133
	$	17,413		$	17,840

The accompanying notes are an integral part of these consolidated statements.

7

MARSH & McLENNAN COMPANIES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

For the Six Months Ended June 30,
(In millions)	2015			2014
Operating cash flows:
Net income before non-controlling interests	$	924		$	894
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization of fixed assets and capitalized software	156			149
Amortization of intangible assets	48			42
Adjustments and payments related to contingent consideration liability	—			(3		)
Provision for deferred income taxes	90			83
Gain on investments	(2		)	(10		)
Loss on disposition of assets	1			2
Share-based compensation expense	46			51
Changes in assets and liabilities:
Net receivables	(274		)	(392		)
Other current assets	39			(16		)
Other assets	(62		)	15
Accounts payable and accrued liabilities	(75		)	(7		)
Accrued compensation and employee benefits	(659		)	(480		)
Accrued income taxes	31			61
Contributions to pension and other benefit plans in excess of current year expense/credit	(149		)	(118		)
Other liabilities	(57		)	(39		)
Effect of exchange rate changes	49			26
Net cash provided by operations	106			258
Financing cash flows:
Purchase of treasury shares	(775		)	(350		)
Net increase in commercial paper	50			—
Proceeds from debt	500			595
Repayments of debt	(5		)	(5		)
Shares withheld for taxes on vested units – treasury shares	(48		)	(55		)
Issuance of common stock from treasury shares	147			136
Payments of deferred and contingent consideration for acquisitions	(40		)	(24		)
Distributions of non-controlling interests	(15		)	(13		)
Dividends paid	(302		)	(275		)
Net cash (used for) provided by financing activities	(488		)	9
Investing cash flows:
Capital expenditures	(176		)	(202		)
Net (purchases) sales of long-term investments	(90		)	2
Proceeds from sales of fixed assets	1			1
Acquisitions	(260		)	(383		)
Other, net	(3		)	1
Net cash used for investing activities	(528		)	(581		)
Effect of exchange rate changes on cash and cash equivalents	(118		)	16
Decrease in cash and cash equivalents	(1,028		)	(298		)
Cash and cash equivalents at beginning of period	1,958			2,303
Cash and cash equivalents at end of period	$	930		$	2,005

The accompanying notes are an integral part of these consolidated statements.

8

MARSH & McLENNAN COMPANIES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF EQUITY

(Unaudited)

For the Six Months Ended June 30,
(In millions, except per share figures)	2015			2014
COMMON STOCK
Balance, beginning and end of period	$	561		$	561
ADDITIONAL PAID-IN CAPITAL
Balance, beginning of year	$	930		$	1,028
Change in accrued stock compensation costs	(19		)	(47		)
Issuance of shares under stock compensation plans and employee stock purchase plans and related tax impact	(69		)	(67		)
Balance, end of period	$	842		$	914
RETAINED EARNINGS
Balance, beginning of year	$	10,335		$	9,452
Net income attributable to the Company	901			874
Dividend equivalents declared – (per share amounts: $0.87 in 2015 and $0.78 in 2014)	(2		)	(2		)
Dividends declared – (per share amounts: $0.87 in 2015 and $0.78 in 2014)	(466		)	(427		)
Balance, end of period	$	10,768		$	9,897
ACCUMULATED OTHER COMPREHENSIVE LOSS
Balance, beginning of year	$	(3,847	)	$	(2,621	)
Other comprehensive income (loss), net of tax	(76		)	14
Balance, end of period	$	(3,923	)	$	(2,607	)
TREASURY SHARES
Balance, beginning of year	$	(925	)	$	(515	)
Issuance of shares under stock compensation plans and employee stock purchase plans	235			251
Purchase of treasury shares	(775		)	(350		)
Balance, end of period	$	(1,465	)	$	(614	)
NON-CONTROLLING INTERESTS
Balance, beginning of year	$	79		$	70
Net income attributable to non-controlling interests	23			20
Other changes	(13		)	(13		)
Balance, end of period	$	89		$	77
TOTAL EQUITY	$	6,872		$	8,228

The accompanying notes are an integral part of these consolidated statements.

9

MARSH & McLENNAN COMPANIES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1.     Nature of Operations

Marsh & McLennan Companies, Inc. (the "Company"), a global professional services firm, is organized based on the different services that it offers. Under this organizational structure, the Company’s two business segments are Risk and Insurance Services and Consulting.

The Risk and Insurance Services segment provides risk management activities and insurance broking, reinsurance broking and insurance program management services for businesses, public entities, insurance companies, associations, professional services organizations, and private clients. The Company conducts business in this segment through Marsh and Guy Carpenter.

The Company conducts business in its Consulting segment through two main business groups. Mercer provides consulting expertise, advice, services and solutions in the areas of health, retirement, talent and investments. Within the investments business, Mercer provides delegated investment (fiduciary management) solutions to institutional investors (such as retirement plan sponsors and trustees) and to individual investors (primarily through the inclusion of funds managed by Mercer on defined contribution and wealth management platforms). As of June 30, 2015, Mercer had assets under management of $136 billion worldwide. Oliver Wyman Group provides specialized management and economic and brand consulting services.

Acquisitions impacting the Risk and Insurance Services and Consulting segments are discussed in Note 7 to the consolidated financial statements.

2.     Principles of Consolidation and Other Matters

The consolidated financial statements included herein have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission. While certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been omitted pursuant to such rules and regulations for interim filings, the Company believes that the information and disclosures presented are adequate to make such information and disclosures not misleading. These consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014 (the "2014 Form 10-K").

The financial information contained herein reflects all normal recurring adjustments which are, in the opinion of management, necessary for a fair presentation of the Company’s consolidated financial statements as of and for the three- and six-month periods ended June 30, 2015 and 2014.

Cash and Cash Equivalents

Cash and cash equivalents primarily consist of certificates of deposit and time deposits, with original maturities of three months or less, and money market funds. The estimated fair value of the Company's cash and cash equivalents approximates their carrying value. The Company is required to maintain operating funds of approximately $198 million related to regulatory requirements outside the U.S. or as collateral under captive insurance arrangements.

Investments

The Company holds investments in private companies and private equity funds. Investments in private equity funds are accounted for under the equity method of accounting using a consistently applied three-month lag period adjusted for any known significant changes from the lag period to the reporting date of the Company. The underlying private equity funds follow investment company accounting, where investments within the fund are carried at fair value. The Company records in earnings, investment gains/losses for its proportionate share of the change in fair value of the funds. Investments using the equity method of accounting are included in other assets in the consolidated balance sheets.

The caption "Investment income (loss)" in the consolidated statements of income comprises realized and unrealized gains and losses from investments recognized in current earnings. It includes, when applicable, other than temporary declines in the value of debt and available for sale securities and the change in value of the Company’s holdings in certain private equity funds, including equity method gains (losses) on its investment in the Trident funds. The Company’s investments may include direct investments in insurance or consulting companies and

10

investments in private equity funds. The Company recorded investment income of $3 million in the second quarter of 2015 compared to an investment loss of $2 million for the same period in 2014, and investment income of $5 million and $11 million for the six months ended June 30, 2015 and 2014, respectively. Investment income for the six months ended June 30, 2014 included $7 million related to performance fees from its investment in Trident III.

Income Taxes

The Company's effective tax rate in the second quarter of 2015 was 27.9% compared with 27.6% in the second quarter of 2014. The effective tax rate for the first six months of 2015 and 2014 was 28.6%. These rates reflect non-U.S. income taxed at rates below the U.S. statutory rate, including the effect of repatriation, as well as the impact of discrete tax matters such as tax legislation, changes in valuation allowances, the resolution of tax examinations and expirations of statutes of limitations.

The Company is routinely examined by tax authorities in the jurisdictions in which it has significant operations. The Company regularly considers the likelihood of assessments in each of the taxing jurisdictions resulting from examinations. When evaluating the potential imposition of penalties, the Company considers a number of relevant factors under penalty statutes, including appropriate disclosure of the tax return position, the existence of legal authority supporting the Company's position, and reliance on the opinion of professional tax advisors.

During the second quarter of 2015, the Company settled a U.S. federal tax audit with the IRS for the year 2013 and in the second quarter of 2014, settled a U.S. federal tax audit with the IRS for the year 2012.

The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in tax returns. The Company's gross unrecognized tax benefits increased from

$97 million at December 31, 2014 to $100 million at June 30, 2015. It is reasonably possible that the total amount of unrecognized tax benefits will decrease between zero and approximately $24 million within the next twelve months due to settlements of audits and expirations of statutes of limitation.

3.     Fiduciary Assets and Liabilities

In its capacity as an insurance broker or agent, the Company collects premiums from insureds and, after deducting its commissions, remits the premiums to the respective insurance underwriters. The Company also collects claims or refunds from underwriters on behalf of insureds. Unremitted insurance premiums and claims proceeds are held by the Company in a fiduciary capacity. Risk and Insurance Services revenue includes interest on fiduciary funds of $10 million and $12 million for the six-month periods ended June 30, 2015 and 2014, respectively. The Consulting segment recorded fiduciary interest income of $2 million and $3 millionfor the six-month periods ended June 30, 2015 and 2014, respectively. Since fiduciary assets are not available for corporate use, they are shown in the consolidated balance sheets as an offset to fiduciary liabilities.

Net uncollected premiums and claims and the related payables amounted to $8.9 billion at June 30, 2015 and $7.3 billion atDecember 31, 2014. The Company is not a principal to the contracts under which the right to receive premiums or the right to receive reimbursement of insured losses arises. Net uncollected premiums and claims and the related payables are, therefore, not assets and liabilities of the Company and are not included in the accompanying consolidated balance sheets.

In certain instances, the Company advances premiums, refunds or claims to insurance underwriters or insureds prior to collection. These advances are made from corporate funds and are reflected in the accompanying consolidated balance sheets as receivables.

Mercer manages approximately $25 billion of assets in trusts or funds for which Mercer’s management or trustee fee is considered a variable interest. Mercer is not the primary beneficiary of these trusts or funds. Mercer’s only variable interest in any of these trusts or funds is its unpaid fees, if any. Mercer’s maximum exposure to loss of its interests is, therefore, limited to collection of its fees.

4.    Per Share Data

Basic net income per share attributable to the Company and income from continuing operations per share are calculated by dividing the respective after-tax income by the weighted average number of outstanding shares of the Company’s common stock.

Diluted net income per share attributable to the Company and income from continuing operations per share are calculated by dividing the respective after-tax income by the weighted average number of outstanding shares of the Company’s common stock, which have been adjusted for the dilutive effect of potentially issuable common shares. Reconciliations of the applicable income components used for diluted EPS - Continuing operations and basic

11

weighted average common shares outstanding to diluted weighted average common shares outstanding are presented below. The reconciling items related to the calculation of diluted weighted average common shares outstanding are the same for net income attributable to the Company.

Basic and Diluted EPS Calculation - Continuing Operations	Three Months Ended June 30,				Six Months Ended June 30,
(In millions, except per share figures)	2015		2014		2015		2014
Net income from continuing operations	$	429	$	440	$	927	$	897
Less: Net income attributable to non-controlling interests	10		7		23		20
	$	419	$	433	$	904	$	877
Basic weighted average common shares outstanding	535		549		537		548
Dilutive effect of potentially issuable common shares	6		7		6		8
Diluted weighted average common shares outstanding	541		556		543		556
Average stock price used to calculate common stock equivalents	$	57.75	$	49.67	$	57.06	$	48.75

There were 16.2 million and 20.6 million stock options outstanding as of June 30, 2015 and 2014, respectively.

5.    Supplemental Disclosures to the Consolidated Statements of Cash Flows

The following schedule provides additional information concerning acquisitions, interest and income taxes paid for the six-month periods ended June 30, 2015 and 2014.

(In millions of dollars)	2015			2014
Assets acquired, excluding cash	$	338		$	554
Liabilities assumed	(12		)	(40		)
Contingent/deferred purchase consideration	(95		)	(140		)
Net cash outflow for current year acquisitions	$	231		$	374
Cash paid into escrow for future acquisition	29			—
Net cash outflow for acquisitions	$	260		$	374

(In millions of dollars)	2015		2014
Interest paid	$	69	$	82
Income taxes paid	$	223	$	218

The Company paid deferred purchase consideration related to prior years' acquisitions of $28 million and $9 million for the six months ended June 30, 2015 and 2014, respectively.

The Company had non-cash issuances of common stock of $67 million and $102 million for the six months ended June 30, 2015 and 2014, respectively, primarily related to its share-based payment plans. The Company recorded share-based compensation expense related to equity awards (excluding stock options) of $33 million and $41 million for the six-month periods ended June 30, 2015 and 2014, respectively.

The consolidated statement of cash flows includes the cash flow impact of discontinued operations related to indemnification payments from the Putnam disposition, that reduced the net cash flow provided by operations by $82 million for the six months ended June 30, 2015.

12

6.    Other Comprehensive Income (Loss)

The changes in the balances of each component of Accumulated Other Comprehensive Income ("AOCI") for the three- and six-month periods ended June 30, 2015 and 2014, including amounts reclassified out of AOCI, are as follows:

(In millions of dollars)	Unrealized Investment Gains		Pension/Post-Retirement Plans Gains (Losses)			Foreign Currency Translation Adjustments			Total
Balance as of April 1, 2015	$	5	$	(3,213	)	$	(882	)	$	(4,090	)
Other comprehensive income (loss) before reclassifications	—		(126		)	243			117
Amounts reclassified from accumulated other comprehensive income	—		50			—			50
Net current period other comprehensive income (loss)	—		(76		)	243			167
Balance as of June 30, 2015	$	5	$	(3,289	)	$	(639	)	$	(3,923	)

(In millions of dollars)	Unrealized Investment Gains		Pension/Post-Retirement Plans Gains (Losses)			Foreign Currency Translation Adjustments		Total
Balance as of April 1, 2014	$	5	$	(2,847	)	$	134	$	(2,708	)
Other comprehensive income (loss) before reclassifications	—		(69		)	137		68
Amounts reclassified from accumulated other comprehensive income	—		33			—		33
Net current period other comprehensive income (loss)	—		(36		)	137		101
Balance as of June 30, 2014	$	5	$	(2,883	)	$	271	$	(2,607	)

(In millions of dollars)	Unrealized Investment Gains		Pension/Post-Retirement Plans Gains (Losses)			Foreign Currency Translation Adjustments			Total
Balance as of January 1, 2015	$	5	$	(3,393	)	$	(459	)	$	(3,847	)
Other comprehensive income (loss) before reclassifications	—		2			(180		)	(178		)
Amounts reclassified from accumulated other comprehensive income	—		102			—			102
Net current period other comprehensive income (loss)	—		104			(180		)	(76		)
Balance as of June 30, 2015	$	5	$	(3,289	)	$	(639	)	$	(3,923	)

(In millions of dollars)	Unrealized Investment Gains		Pension/Post-Retirement Plans Gains (Losses)			Foreign Currency Translation Adjustments		Total
Balance as of January 1, 2014	$	5	$	(2,682	)	$	56	$	(2,621	)
Other comprehensive income (loss) before reclassifications	—		(268		)	215		(53		)
Amounts reclassified from accumulated other comprehensive income	—		67			—		67
Net current period other comprehensive income (loss)	—		(201		)	215		14
Balance as of June 30, 2014	$	5	$	(2,883	)	$	271	$	(2,607	)

13

The components of other comprehensive income (loss) for the three- and six-month periods ended June 30, 2015 and 2014 are as follows:

Three Months Ended June 30,	2015									2014
(In millions of dollars)	Pre-Tax			Tax			Net of Tax			Pre-Tax			Tax			Net of Tax
Foreign currency translation adjustments	$	246		$	3		$	243		$	136		$	(1	)	$	137
Pension/post-retirement plans:
Amortization of losses (gains) included in net periodic pension cost:
Prior service gains (a)	—			—			—			(2		)	(1		)	(1		)
Net actuarial losses (a)	76			26			50			49			15			34
Subtotal	76			26			50			47			14			33
Effect of remeasurement	1			—			1			—			—			—
Effect of settlement	1			—			1			—			—			—
Foreign currency translation adjustments	(161		)	(33		)	(128		)	(91		)	(20		)	(71		)
Other	—			—			—			2			—			2
Pension/post-retirement plans (losses) gains	(83		)	(7		)	(76		)	(42		)	(6		)	(36		)
Other comprehensive income (loss)	$	163		$	(4	)	$	167		$	94		$	(7	)	$	101
(a) Components of net periodic pension cost are included in compensation and benefits in the Consolidated Statements of Income. Tax on prior service gains and net actuarial losses is included in income tax expense.

Six Months Ended June 30,	2015									2014
(In millions of dollars)	Pre-Tax			Tax			Net of Tax			Pre-Tax			Tax			Net of Tax
Foreign currency translation adjustments	$	(180	)	$	—		$	(180	)	$	207		$	(8	)	$	215
Pension/post-retirement plans:
Amortization of losses (gains) included in net periodic pension cost:
Prior service gains (a)	—			—			—			(5		)	(2		)	(3		)
Net actuarial losses (a)	153			51			102			100			30			70
Subtotal	153			51			102			95			28			67
Effect of remeasurement	(3		)	(1		)	(2		)	(166		)	(33		)	(133		)
Effect of curtailment	—			—			—			(65		)	(13		)	(52		)
Effect of settlement	1			—			1			—			—			—
Plan Termination	(6		)	(2		)	(4		)	—			—			—
Foreign currency translation adjustments	8			1			7			(108		)	(22		)	(86		)
Other	—			—			—			3			—			3
Pension/post-retirement plans (losses) gains	153			49			104			(241		)	(40		)	(201		)
Other comprehensive (loss) income	$	(27	)	$	49		$	(76	)	$	(34	)	$	(48	)	$	14
(a) Components of net periodic pension cost are included in compensation and benefits in the Consolidated Statements of Income. Tax on prior service gains and net actuarial losses is included in income tax expense.

14

7.     Acquisitions

The Company completed 8 acquisitions during the first six months of 2015.

• January – Marsh acquired INGESEG S.A., an insurance brokerage located in Argentina.

• February – Oliver Wyman acquired TeamSAI, a Georgia-based provider of consulting and technical services to the transportation industry, and Mercer acquired Strategic Capital Management AG, a Switzerland-based institutional investment advisor.

• May - Marsh acquired Sylvite Financial Services, Inc., a Canada-based insurance consulting firm and Sumitomo Life Insurance Agency America, Inc., an employee benefits brokerage and consulting firm providing employee benefit and other services to U.S.-based subsidiaries of Japanese companies.

• June - Marsh & McLennan Agency ("MMA") acquired MHBT, Inc., a Texas-based insurance broker. Marsh acquired SIS Co. Ltd, a Korea-based insurance broker and advisor. Mercer acquired Kepler Associates, a U.K.-based executive remuneration specialist.

Total purchase consideration for acquisitions made during the first six months of 2015 was $331 million, which consisted of cash paid of $236 million and deferred purchase and estimated contingent consideration of $95 million. Contingent consideration arrangements are primarily based on EBITDA and revenue targets over periods ranging from two to four years. The fair value of the contingent consideration was based on projected revenue and earnings of the acquired entities. The estimated fair values of assets acquired and liabilities assumed are subject to adjustment when purchase accounting is finalized. The Company also paid $28 million of deferred purchase consideration and $33 million of contingent consideration related to acquisitions made in prior years. In addition, the Company purchased other intangible assets in the amount of $3 million.

The following table presents the preliminary allocation of the acquisition cost to the assets acquired and liabilities assumed during 2015 based on their fair values:

For the Six Months Ended June 30, 2015
(In millions of dollars)
Cash	$	236
Estimated fair value of deferred/contingent consideration	95
Total Consideration	$	331
Allocation of purchase price:
Cash and cash equivalents	$	5
Accounts receivable, net	8
Property, plant, and equipment	2
Intangible assets	138
Goodwill	188
Other assets	2
Total assets acquired	343
Current liabilities	9
Other liabilities	3
Total liabilities assumed	12
Net assets acquired	$	331

Prior Year Acquisitions

The Risk and Insurance Services segment completed fifteen acquisitions during 2014.

• January – MMA acquired Barney & Barney, LLC, a San Diego-based insurance broking firm that provides insurance, risk management and employee benefits solutions to businesses and individuals throughout the U.S. and abroad, Great Lakes Employee Benefits Services, Inc., an employee group benefits consulting and brokerage firm based in Michigan, and Bond Network, Inc., a surety bonding agency based in North Carolina.

15

• February – Marsh acquired Central Insurance Services, an independent insurance broker in Scotland that provides insurance broking and risk advisory services to companies of all sizes across industry sectors.

• March – MMA acquired Capstone Insurance Services, LLC, an agency that provides property-casualty insurance and risk management solutions to businesses and individuals throughout South Carolina.

• May – MMA acquired Kinker-Eveleigh Insurance Agency, an Ohio-based agency specializing in property-casualty and employee benefits solutions, VISICOR, a full-service employee benefits brokerage and consulting firm based in Texas, and Senn Dunn Insurance, a full-service insurance brokerage located in North Carolina.

• August – Marsh acquired Seguros Morrice y Urrutia S.A., an insurance broker based in Panama City, Panama.

• September – Marsh acquired Kocisko Insurance Brokers, Inc., a full-service commercial insurance brokerage located in Montreal, Quebec.

• October – MMA acquired NuWest Insurance Services, Inc., a California-based property-casualty agency.

• November – Marsh acquired Torrent Technologies, Inc., a Montana-based flood insurance specialist.

• December – Marsh acquired Seafire Insurance Services, LLC, a Kansas-based managing general underwriter, and Trade Insure NV, a leading distributor of credit insurance policies in Belgium, and MMA acquired The Benefit Planning Group, Inc., a North Carolina-based employee benefit consulting firm.

The Consulting segment completed six acquisitions during 2014.

• February – Mercer acquired Transition Assist, a retiree exchange specializing in helping retirees in employer-sponsored plans select Medicare supplemental health care insurance.

• September – Oliver Wyman acquired Bonfire Communications, an agency specializing in employee engagement and internal communications based in San Francisco, California.

• November – Mercer acquired AUSREM, a remuneration research and workforce consulting specialist based in Australia, and Jeitosa Group International, a global HR business consultancy and IT systems integration firm.

• December – Mercer acquired Denarius, a compensation and benefits survey and information products consulting firm based in Chile, and Oliver Wyman acquired OC&C Strategy Consultants (Boston) LLC (part of the OC&C network), a Boston-based consulting firm specializing in the business media, information services and education sectors.

Total purchase consideration for acquisitions made during the first six months of 2014 was $534 million, which consisted of cash paid of $394 million and deferred purchase and estimated contingent consideration of $140 million. Contingent consideration arrangements are primarily based on EBITDA and revenue targets over periods ranging from two to four years. The fair value of the contingent consideration was based on projected revenue and earnings of the acquired entities. The estimated fair values of assets acquired and liabilities assumed are subject to adjustment when purchase accounting is finalized. In the first six months of 2014, the Company also paid $9 million of deferred purchase consideration and $36 million of contingent consideration related to acquisitions made in prior years.

Pro-Forma Information

While the Company does not believe its acquisitions in the aggregate are material, the following unaudited pro-forma financial data gives effect to the acquisitions made by the Company during 2015 and 2014. In accordance with accounting guidance related to pro-forma disclosures, the information presented for current year acquisitions is as if they occurred on January 1, 2014 and reflects acquisitions made in 2014 as if they occurred on January 1, 2013. The unaudited pro-forma information adjusts for the effects of amortization of acquired intangibles. The unaudited pro-forma financial data is presented for illustrative purposes only and is not necessarily indicative of the operating results that would have been achieved if such acquisitions had occurred on the dates indicated, nor is it necessarily indicative of future consolidated results.

16

	Three Months Ended June 30,				Six Months Ended June 30,
(In millions, except per share figures)	2015		2014		2015		2014
Revenue	$	3,241	$	3,352	$	6,488	$	6,683
Income from continuing operations	$	433	$	441	$	934	$	902
Net income attributable to the Company	$	422	$	432	$	908	$	879
Basic net income per share:
– Continuing operations	$	0.79	$	0.79	$	1.70	$	1.61
– Net income attributable to the Company	$	0.79	$	0.79	$	1.69	$	1.60
Diluted net income per share:
– Continuing operations	$	0.78	$	0.78	$	1.68	$	1.59
– Net income attributable to the Company	$	0.78	$	0.78	$	1.67	$	1.58

The consolidated statements of income include the results of operations of acquired companies since their respective acquisition dates. The consolidated statements of income for the three- and six-month periods ended June 30, 2015 include approximately $15 million and $18 million of revenue, respectively, and $0 million and $1 million of operating income, respectively, related to acquisitions made in 2015.

8.    Goodwill and Other Intangibles

The Company is required to assess goodwill and any indefinite-lived intangible assets for impairment annually, or more frequently if circumstances indicate impairment may have occurred. The Company performs the annual impairment test for each of its reporting units during the third quarter of each year. In accordance with applicable accounting guidance, the Company assesses qualitative factors to determine whether it is necessary to perform the two-step goodwill impairment test. The Company considers numerous factors, which include whether the fair value of each reporting unit exceeded its fair value by a substantial margin in its most recent estimate of reporting unit fair values, whether significant acquisitions or dispositions occurred which might alter the fair value of its reporting units, macroeconomic conditions and their potential impact on reporting unit fair values, actual performance compared with budget and prior projections used in its estimation of reporting unit fair values, industry and market conditions, and the year-over-year change in the Company’s share price. The Company completed its qualitative assessment in the third quarter of 2014 and concluded that a two-step goodwill impairment test was not required in 2014 and that goodwill was not impaired.

Other intangible assets that are not deemed to have an indefinite life are amortized over their estimated lives and reviewed for impairment upon the occurrence of certain triggering events in accordance with applicable accounting literature.

Changes in the carrying amount of goodwill are as follows:

June 30,
(In millions of dollars)	2015			2014
Balance as of January 1, as reported	$	7,241		$	6,893
Goodwill acquired	188			334
Other adjustments(a)	(48		)	3
Balance at June 30,	$	7,381		$	7,230

^(a)  Primarily reflects the impact of foreign exchange in each period.

Goodwill allocable to the Company’s reportable segments at June 30, 2015 is as follows: Risk & Insurance Services, $5.2 billion and Consulting, $2.2 billion.

17

Amortized intangible assets consist of the cost of client lists, client relationships and trade names acquired. The gross cost and accumulated amortization are as follows:

	June 30, 2015						December 31, 2014
(In millions of dollars)	Gross Cost		Accumulated Amortization		Net Carrying Amount		Gross Cost		Accumulated Amortization		Net Carrying Amount
Amortized intangibles	$	1,292	$	518	$	774	$	1,177	$	485	$	692

Aggregate amortization expense for the six months ended June 30, 2015 and2014 was $48 million and $42 million, respectively. The estimated future aggregate amortization expense is as follows:

For the Years Ending December 31,
(In millions of dollars)	Estimated Expense
2015 (excludes amortization through June 30, 2015)	$	55
2016	98
2017	94
2018	88
2019	83
Subsequent years	356
	$	774

9.     Fair Value Measurements

Fair Value Hierarchy

The Company has categorized its assets and liabilities that are valued at fair value on a recurring basis into a three-level fair value hierarchy as defined by the Financial Accounting Standards Board ("FASB"). The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets and liabilities (Level 1) and lowest priority to unobservable inputs (Level 3). In some cases, the inputs used to measure fair value might fall into different levels of the fair value hierarchy. In such cases, the level in the fair value hierarchy, for disclosure purposes, is determined based on the lowest level input that is significant to the fair value measurement. Assets and liabilities recorded in the consolidated balance sheets at fair value are categorized based on the inputs in the valuation techniques as follows:

Level 1. Assets and liabilities whose values are based on unadjusted quoted prices for identical assets or liabilities in an active market (examples include active exchange-traded equity securities and money market mutual funds).

Assets and liabilities utilizing Level 1 inputs include exchange-traded mutual funds and money market funds.

Level 2. Assets and liabilities whose values are based on the following:

a) Quoted prices for similar assets or liabilities in active markets;

b) Quoted prices for identical or similar assets or liabilities in non-active markets (examples include corporate and municipal bonds, which trade infrequently);

c) Pricing models whose inputs are observable for substantially the full term of the asset or liability (examples include most over-the-counter derivatives, including interest rate and currency swaps); and

d) Pricing models whose inputs are derived principally from or corroborated by observable market data through correlation or other means for substantially the full asset or liability (for example, certain mortgage loans).

The Company does not have any assets or liabilities that utilize Level 2 inputs.

18

Level 3. Assets and liabilities whose values are based on prices, or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. These inputs reflect management’s own assumptions about the assumptions a market participant would use in pricing the asset or liability (examples include private equity investments, certain commercial mortgage whole loans, and long-dated or complex derivatives including certain foreign exchange options and long-dated options on gas and power).

Liabilities utilizing Level 3 inputs include liabilities for contingent purchase consideration.

Valuation Techniques

Equity Securities and Mutual Funds – Level 1

Investments for which market quotations are readily available are valued at the sale price on their principal exchange, or official closing bid price for certain markets.

Contingent Consideration Liability – Level 3

Purchase consideration for some acquisitions made by the Company includes contingent consideration arrangements. Contingent consideration arrangements are primarily based on meeting EBITDA and revenue targets over periods from two to four years. The fair value of contingent consideration is estimated as the present value of future cash flows resulting from the projected revenue and earnings of the acquired entities.

The following fair value hierarchy table presents information about the Company’s assets and liabilities measured at fair value on a recurring basis as of June 30, 2015 and December 31, 2014.

	Identical Assets (Level 1)				Observable Inputs (Level 2)				Unobservable Inputs (Level 3)				Total
(In millions of dollars)	06/30/15		12/31/14		06/30/15		12/31/14		06/30/15		12/31/14		06/30/15		12/31/14
Assets:
Financial instruments owned:
Mutual funds(a)	$	142	$	150	$	—	$	—	$	—	$	—	$	142	$	150
Money market funds(b)	40		107		—		—		—		—		40		107
Total assets measured at fair value	$	182	$	257	$	—	$	—	$	—	$	—	$	182	$	257
Fiduciary Assets:
Money market funds	$	66	$	57	$	—	$	—	$	—	$	—	$	66	$	57
Total fiduciary assets measured at fair value	$	66	$	57	$	—	$	—	$	—	$	—	$	66	$	57
Liabilities:
Contingent purchase consideration liability(c)	$	—	$	—	$	—	$	—	$	244	$	207	$	244	$	207
Total liabilities measured at fair value	$	—	$	—	$	—	$	—	$	244	$	207	$	244	$	207

^(a)  Included in other assets in the consolidated balance sheets.

^(b)  Included in cash and cash equivalents in the consolidated balance sheets.

^(c)  Included in accounts payable and accrued liabilities and other liabilities in the consolidated balance sheets.

During the six-month period ended June 30, 2015, there were no assets or liabilities that were transferred between any of the levels.

The table below sets forth a summary of the changes in fair value of the Company’s Level 3 liabilities as of June 30, 2015 and 2014 that represent contingent consideration related to acquisitions:

(In millions of dollars)	2015			2014
Balance at January 1,	$	207		$	104
Additions	49			67
Payments	(33		)	(36		)
Revaluation Impact	21			9
Balance at June 30,	$	244		$	144

19

The fair value of the contingent liability is based on projections of revenue and earnings for the acquired entities that are reassessed on a quarterly basis. As set forth in the table above, based on the Company's ongoing assessment of the fair value of contingent consideration, the Company recorded a net increase in the estimated fair value of such liabilities for prior-period acquisitions of $21 million in the six-month period ended June 30, 2015. A 5% increase in the above mentioned projections would increase the liability by approximately $23 million. A 5% decrease in the above mentioned projections would decrease the liability by approximately $31 million.

Fair Value of Long-Term Investments

The Company holds investments in certain private companies, public companies and certain private equity investments that are accounted for using the equity method of accounting. The carrying value of these investments amounted to $424 million at June 30, 2015 and $388 million at December 31, 2014. The Company's investments in private equity funds were $77 million and $61 million at June 30, 2015 and December 31, 2014, respectively. The carrying values of these private equity investments approximate fair value. The underlying private equity funds follow investment company accounting, where investments within the fund are carried at fair value. The Company records in earnings, investment gains/losses for its proportionate share of the change in fair value of the funds. These investments would be classified as Level 3 in the fair value hierarchy and are included in other assets in the consolidated balance sheets.

During 2014, the Company purchased 34% of the common stock of Alexander Forbes. As of June 30, 2015, the carrying value of the Company’s investment in Alexander Forbes was approximately $301 million. As of June 30, 2015, the market value of the approximately 443 million shares of Alexander Forbes owned by the Company, based on the June 30, 2015 closing share price of 9.00 South African Rand per share, was approximately $324 million. The Company’s investment in Alexander Forbes and its other equity investments in private companies are accounted for using the equity method of accounting and included in revenue in the consolidated income statements and in other assets in the consolidated balance sheets. The Company records its share of income or loss on its equity method investments on a one quarter lag basis.

On February 24, 2015, Mercer purchased shares of common stock of Benefitfocus (NASDAQ:BNFT) constituting approximately 9.9% of BNFT's outstanding capital stock as of the acquisition date. The purchase price for the BNFT shares and certain other rights and other consideration was approximately $75 million. The Company has elected to account for this investment under the cost method of accounting as the shares purchased are categorized as restricted and cannot be sold for more than one year. When the restrictions on sale are less than one year in duration (January 1, 2017), the shares are expected to be classified as available for sale. This investment would then be classified as Level 2 in the fair value hierarchy and included in other assets in the consolidated balance sheets. The value of the BNFT shares based on the closing price on the NASDAQ at June 30, 2015 and without regard to the restrictions on sale was approximately $124 million.

10.    Retirement Benefits

The Company maintains qualified and non-qualified defined benefit pension plans for its U.S. and non-U.S. eligible employees. The Company’s policy for funding its tax-qualified defined benefit retirement plans is to contribute amounts at least sufficient to meet the funding requirements set forth by U.S. law and the laws of the non-U.S. jurisdictions in which the Company offers defined benefit plans.

The target asset allocation for the Company's U.S. Plan was 64% equities and equity alternatives and 36% fixed income and at June 30, 2015, the actual allocation for the Company's U.S. Plan was 63% equities and equity alternatives and 37% fixed income. The target asset allocation for the Company's U.K. Plans, which comprises approximately 83% of non-U.S. Plan assets, is 48% equities and equity alternatives and 52% fixed income. At June 30, 2015, the actual allocation for the U.K. Plans was 48% equities and equity alternatives and 52% fixed income. The assets of the Company's defined benefit plans are diversified and are managed in accordance with applicable laws and with the goal of maximizing the plans' real return within acceptable risk parameters. The Company generally uses threshold-based portfolio re-balancing to ensure the actual portfolio remains consistent with target asset allocation ranges.

20

The components of the net periodic benefit cost for defined benefit and other post-retirement plans are as follows:

Combined U.S. and significant non-U.S. Plans	Pension						Post-retirement
For the Three Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	50		$	62		$	1		$	1
Interest cost	146			161			2			3
Expected return on plan assets	(243		)	(250		)	—			—
Amortization of prior service credit	—			(3		)	1			—
Recognized actuarial loss (gain)	78			53			(1		)	—
Net periodic benefit cost	$	31		$	23		$	3		$	4
Combined U.S. and significant non-U.S. Plans	Pension						Post-retirement
For the Six Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	102		$	123		$	2		$	2
Interest cost	292			322			4			6
Expected return on plan assets	(486		)	(498		)	—			—
Amortization of prior service credit	—			(6		)	1			—
Recognized actuarial loss (gain)	154			104			(1		)	—
Net periodic benefit cost	$	62		$	45		$	6		$	8
Curtailment credit	—			(65		)	—			—
Plan termination	—			—			(128		)	—
Total cost (credit)	$	62		$	(20	)	$	(122	)	$	8
U.S. Plans only	Pension						Post-retirement
For the Three Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	29		$	23		$	—		$	1
Interest cost	63			62			1			2
Expected return on plan assets	(92		)	(87		)	—			—
Amortization of prior service credit	—			(2		)	1			—
Recognized actuarial loss (gain)	46			27			(1		)	(1		)
Net periodic benefit cost	$	46		$	23		$	1		$	2
Plan termination	—			—			—			—
Total cost	$	46		$	23		$	1		$	2

U.S. Plans only	Pension						Post-retirement
For the Six Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	59		$	45		$	1		$	1
Interest cost	125			125			2			4
Expected return on plan assets	(184		)	(173		)	—			—
Amortization of prior service credit	—			(4		)	1			—
Recognized actuarial loss (gain)	91			53			(1		)	(1		)
Net periodic benefit cost	$	91		$	46		$	3		$	4
Plan termination	—			—			(128		)	—
Total cost (credit)	$	91		$	46		$	(125	)	$	4

21

In March 2015, the Company amended its U.S. Post-65 retiree medical reimbursement plan (the "RRA plan"), resulting in its termination, with benefits to certain participants paid through December 31, 2016. As a result of the termination of the RRA plan, the Company recognized a net credit of approximately $125 million in the first quarter of 2015.

Significant non-U.S. Plans only	Pension						Post-retirement
For the Three Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015		2014
Service cost	$	21		$	39		$	1	$	—
Interest cost	83			99			1		1
Expected return on plan assets	(151		)	(163		)	—		—
Amortization of prior service credit	—			(1		)	—		—
Recognized actuarial loss	32			26			—		1
Net periodic benefit (credit) cost	$	(15	)	$	—		$	2	$	2

Significant non-U.S. Plans only	Pension						Post-retirement
For the Six Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015		2014
Service cost	$	43		$	78		$	1	$	1
Interest cost	167			197			2		2
Expected return on plan assets	(302		)	(325		)	—		—
Amortization of prior service cost	—			(2		)	—		—
Recognized actuarial loss	63			51			—		1
Net periodic benefit (credit) cost	$	(29	)	$	(1	)	$	3	$	4
Curtailment (credit)	—			(65		)	—		—
Total (credit) cost	$	(29	)	$	(66	)	$	3	$	4

After completion of a consultation period with affected colleagues, in January 2014, the Company amended its U.K. defined benefit pension plans to close those plans to future benefit accruals effective August 1, 2014 and replaced those plans, along with its existing U.K. defined contribution plans, with a new, comprehensive defined contribution arrangement. This change resulted in a curtailment of the U.K. defined benefit plans, and as required under GAAP, the Company re-measured the defined benefit plans’ assets and liabilities at the amendment date, based on assumptions and market conditions at that date. As a result of the re-measurement, the projected benefit obligation ("PBO") increased by approximately $147 million and the funded status decreased by approximately $137 million. The change in the PBO and in the funded status relates primarily to a decrease in the discount rate at the re-measurement date. The net periodic benefit costs recognized in 2014 were the weighted average resulting from the December 31, 2013 measurement and the January 2014 re-measurement. The Company recognized a curtailment gain of $65 million in the first quarter of 2014, primarily resulting from the recognition of the remaining unamortized prior service credit related to a plan amendment made in December 2012. This gain was mostly offset by the cost of a transition benefit for certain employees most impacted by the amendment, which is not part of net periodic pension cost.

The weighted average actuarial assumptions utilized to calculate the net periodic benefit costs for the U.S. and significant non-U.S. defined benefit plans are as follows:

Combined U.S. and significant non-U.S. Plans	Pension Benefits				Post-retirement Benefits
June 30,	2015		2014		2015		2014
Weighted average assumptions:
Expected return on plan assets	7.25	%	7.53	%	—	%	—	%
Discount rate	3.79	%	4.74	%	4.08	%	5.03	%
Rate of compensation increase	2.42	%	2.64	%	—	%	—	%

22

The Company made approximately $88 million of contributions to its U.S. and non-U.S. defined benefit plans in the first six months of 2015. The Company expects to contribute approximately $106 million to its non-qualified U.S. pension and non-U.S. pension plans during the remainder of 2015.

11.    Debt

The Company’s outstanding debt is as follows:

(In millions of dollars)	June 30, 2015		December 31, 2014
Short-term:
Commercial paper	$	50	$	—
Current portion of long-term debt	61		11
	111		11
Long-term:
Senior notes – 2.30% due 2017	249		249
Senior notes – 2.55% due 2018	249		249
Senior notes – 2.35% due 2019	300		300
Senior notes – 2.35% due 2020	500		—
Senior notes – 4.80% due 2021	497		497
Senior notes – 4.05% due 2023	248		248
Senior notes – 3.50% due 2024	599		595
Senior notes – 3.50% due 2025	498		498
Senior notes – 5.875% due 2033	297		297
Mortgage – 5.70% due 2035	398		403
Term Loan Facility – due 2016	50		50
Other	1		1
	3,886		3,387
Less current portion	61		11
	$	3,825	$	3,376

The senior notes in the table above are publicly registered by the Company with no guarantees attached.

The Company had $50 million of commercial paper outstanding at June 30, 2015 with a weighted average interest rate of 0.54%.

In March 2015, the Company issued $500 million of 2.35%five-year senior notes. The Company used the net proceeds for general corporate purposes.

In September 2014, the Company issued $300 million of 2.35%five-year senior notes and $500 million of 3.50%10.5-year senior notes. In October 2014, a significant portion of the net proceeds of this offering were used to redeem $630 million of debt, including $230 million of 5.75% senior notes due in September 2015 and $400 million of 9.25% senior notes due in 2019. Total cash outflow related to this transaction was approximately $765 million, including a $137 million cost for early redemption, which was reflected as a charge in the consolidated statements of income in the fourth quarter of 2014.

In May 2014, the Company issued $600 million of 3.50%ten-year senior notes. The net proceeds of this offering were used for general corporate purposes, which included the repayment of $320 million of the existing 5.375% senior notes, which matured on July 15, 2014.

The Company and certain of its foreign subsidiaries maintain a $1.2 billion multi-currency five-year unsecured revolving credit facility. The interest rate on this facility is based on LIBOR plus a fixed margin which varies with the Company's credit ratings. This facility expires in March 2019 and requires the Company to maintain certain coverage and leverage ratios which are tested quarterly. There were no borrowings outstanding under this facility at June 30, 2015.

In December 2012, the Company closed on a $50 million, three-year term loan facility. The interest rate on this facility at June 30, 2015 was 1.19%, which is based on LIBOR plus a fixed margin which varies with the Company's credit ratings. The facility requires the Company to maintain coverage ratios and leverage ratios consistent with the

23

revolving credit facility discussed above. The Company had $50 million of borrowings outstanding under this facility at June 30, 2015.

Fair Value of Short-term and Long-term Debt

The estimated fair value of the Company’s short-term and long-term debt is provided below. Certain estimates and judgments were required to develop the fair value amounts. The fair value amounts shown below are not necessarily indicative of the amounts that the Company would realize upon disposition, nor do they indicate the Company’s intent or need to dispose of the financial instrument.

	June 30, 2015				December 31, 2014
(In millions of dollars)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Short-term debt	$	111	$	111	$	11	$	11
Long-term debt	$	3,825	$	3,919	$	3,376	$	3,493

The fair value of the Company’s short-term debt, which consists primarily of commercial paper and term debt maturing in the next year, approximates its carrying value. The estimated fair value of a primary portion of the Company's long-term debt is based on discounted future cash flows using current interest rates available for debt with similar terms and remaining maturities. Short- and long-term debt would be classified as Level 2 in the fair value hierarchy.

12.    Restructuring Costs

The Company recorded total restructuring costs of $5 million in the first six months of 2015, primarily for future severance and rent under non-cancelable leases. These costs were incurred in Risk and Insurance services ($2 million) and in Corporate ($3 million).

Details of the restructuring activity from January 1, 2014 through June 30, 2015, which includes liabilities from actions prior to 2015, are as follows:

(In millions of dollars)	Liability at 1/1/14		Amounts Accrued		Cash Paid			Other			Liability at 12/31/14		Amounts Accrued		Cash Paid			Liability at 6/30/15
Severance	$	11	$	4	$	(8	)	$	—		$	7	$	2	$	(4	)	$	5
Future rent under non-cancelable leases and other costs	113		8		(35		)	(1		)	85		3		(8		)	80
Total	$	124	$	12	$	(43	)	$	(1	)	$	92	$	5	$	(12	)	$	85

The expenses associated with the above initiatives are included in compensation and benefits and other operating expenses in the consolidated statements of income. The liabilities associated with these initiatives are classified on the consolidated balance sheets as accounts payable, other liabilities, or accrued compensation, depending on the nature of the items.

13.    Common Stock

During the first six months of 2015, the Company repurchased approximately 13.5 million shares of its common stock for consideration of $775 million. In May 2015, the Board of Directors renewed the Company's share repurchase program, allowing management to buy back up to $2 billion of the Company's common stock. At June 30, 2015, the Company remains authorized to purchase additional shares of its common stock up to a value of approximately $1.8 billion. There is no time limit on the authorization. During the first six months of 2014, the Company repurchased 7 million shares of its common stock for consideration of $350 million.

24

14.    Claims, Lawsuits and Other Contingencies

Litigation Matters

The Company and its subsidiaries are subject to a significant number of claims, lawsuits and proceedings in the ordinary course of business. Such claims and lawsuits consist principally of alleged errors and omissions in connection with the performance of professional services, including the placement of insurance, the provision of actuarial services for corporate and public sector clients, the provision of investment advice and investment management services to pension plans, the provision of advice relating to pension buy-out transactions and the provision of consulting services relating to the drafting and interpretation of trust deeds and other documentation governing pension plans. These claims may seek damages, including punitive and treble damages, in amounts that could, if awarded, be significant. In establishing liabilities for errors and omissions claims in accordance with FASB ASC Subtopic No. 450-20 (Contingencies-Loss Contingencies), the Company uses case level reviews by inside and outside counsel, an internal actuarial analysis and other analysis to estimate potential losses. A liability is established when a loss is both probable and reasonably estimable. The liability is reviewed quarterly and adjusted as developments warrant. In many cases, the Company has not recorded a liability, other than for legal fees to defend the claim, because we are unable, at the present time, to make a determination that a loss is both probable and reasonably estimable.

To the extent that expected losses exceed our deductible in any policy year, the Company also records an asset for the amount that we expect to recover under any available third-party insurance programs. The Company has varying levels of third-party insurance coverage, with policy limits and coverage terms varying significantly by policy year.

Governmental Inquiries and Enforcement Matters

Our activities are regulated under the laws of the United States and its various states, the European Union and its member states, and the other jurisdictions in which the Company operates. In the ordinary course of business, the Company is also subject to subpoenas, investigations, lawsuits and other regulatory actions undertaken by governmental authorities.

Other Contingencies-Guarantees

In connection with its acquisition of U.K.-based Sedgwick Group in 1998, the Company acquired several insurance underwriting businesses that were already in run-off, including River Thames Insurance Company Limited ("River Thames"), which the Company sold in 2001. Sedgwick guaranteed payment of claims on certain policies underwritten through the Institute of London Underwriters (the "ILU") by River Thames. The policies covered by this guarantee are reinsured up to £40 million by a related party of River Thames. Payment of claims under the reinsurance agreement is collateralized by segregated assets held in a trust. As of June 30, 2015, the reinsurance coverage exceeded the best estimate of the projected liability of the policies covered by the guarantee. To the extent River Thames or the reinsurer is unable to meet its obligations under those policies, a claimant may seek to recover from the Company under the guarantee.

From 1980 to 1983, the Company owned indirectly the English & American Insurance Company ("E&A"), which was a member of the ILU. The ILU required the Company to guarantee a portion of E&A's obligations. After E&A became insolvent in 1993, the ILU agreed to discharge the guarantee in exchange for the Company's agreement to post an evergreen letter of credit that is available to pay claims by policyholders on certain E&A policies issued through the ILU and incepting between July 3, 1980 and October 6, 1983. Certain claims have been paid under the letter of credit and the Company anticipates that additional claimants may seek to recover against the letter of credit.

Kroll-related Matters

Under the terms of a stock purchase agreement with Altegrity, Inc. ("Altegrity") related to Altegrity's purchase of Kroll from the Company in August 2010, a copy of which is attached as an exhibit to the Company's Quarterly Report on Form 10-Q for the period ended June 30, 2010, the Company agreed to provide a limited indemnity to Altegrity with respect to certain Kroll-related litigation and regulatory matters.

* * * *

The pending proceedings and other matters described in this Note 14 on Claims, Lawsuits and Other Contingencies may expose the Company or its subsidiaries to liability for significant monetary damages and other forms of relief. Where a loss is both probable and reasonably estimable, the Company establishes liabilities in accordance with

25

FASB ASC Subtopic No. 450-20 (Contingencies - Loss Contingencies). Except as described above, the Company is not able at this time to provide a reasonable estimate of the range of possible loss attributable to these matters or the impact they may have on the Company's consolidated results of operations, financial position or cash flows. This is primarily because these matters are still developing and involve complex issues subject to inherent uncertainty. Adverse determinations in one or more of these matters could have a material impact on the Company's consolidated results of operations, financial condition or cash flows in a future period.

15.    Segment Information

The Company is organized based on the types of services provided. Under this organizational structure, the Company’s business segments are:

▪ Risk and Insurance Services, comprising insurance services (Marsh) and reinsurance services (Guy Carpenter); and

▪ Consulting, comprising Mercer and Oliver Wyman Group

The accounting policies of the segments are the same as those used for the consolidated financial statements described in Note 1 to the Company’s 2014 Form 10-K. Segment performance is evaluated based on segment operating income, which includes directly related expenses, and charges or credits related to integration and restructuring but not the Company’s corporate-level expenses. Revenues are attributed to geographic areas on the basis of where the services are performed.

Selected information about the Company’s operating segments for the three- and six-month periods ended June 30, 2015 and 2014 are as follows:

	Three Months Ended June 30,							Six Months Ended June 30,
(In millions of dollars)	Revenue				Operating Income (Loss)			Revenue				Operating Income (Loss)
2015–
Risk and Insurance Services	$	1,750		(a)	$	427		$	3,553		(c)	$	960
Consulting	1,487			(b)	248			2,908			(d)	496
Total Operating Segments	3,237				675			6,461				1,456
Corporate / Eliminations	(12		)		(46		)	(21		)		(92		)
Total Consolidated	$	3,225			$	629		$	6,440			$	1,364
2014–
Risk and Insurance Services	$	1,791		(a)	$	448		$	3,630		(c)	$	941
Consulting	1,520			(b)	247			2,952			(d)	472
Total Operating Segments	3,311				695			6,582				1,413
Corporate / Eliminations	(11		)		(48		)	(18		)		(93		)
Total Consolidated	$	3,300			$	647		$	6,564			$	1,320

^(a)  Includes inter-segment revenue of $4 million and $3 million in 2015and 2014, respectively, interest income on fiduciary funds of $5 million and $6 million in 2015 and 2014, respectively, and equity method income of $0 million and $6 million in 2015 and 2014, respectively.

^(b)  Includes inter-segment revenue of $8 million in both 2015 and 2014, interest income on fiduciary funds of $1 millionin 2015 and$2 million in 2014, and equity method income of $5 million in 2015 and $0 million in 2014.

^(c)  Includes inter-segment revenue of $5 million and $3 million in 2015 and 2014, respectively, interest income on fiduciary funds of $10 million and $12 million in 2015 and 2014, respectively, and equity method income of $2 million in 2015 and $6 million in 2014.

^(d)  Includes inter-segment revenue of $16 million and $15 million in 2015 and 2014, respectively, interest income on fiduciary funds of $2 million and $3 million in 2015 and 2014, respectively, and equity method income of $8 million in 2015 and $0 million in 2014.

26

Details of operating segment revenue for the three- and six-month periods ended June 30, 2015 and 2014 are as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
(In millions of dollars)	2015			2014			2015			2014
Risk and Insurance Services
Marsh	$	1,474		$	1,495		$	2,908		$	2,952
Guy Carpenter	276			296			645			678
Total Risk and Insurance Services	1,750			1,791			3,553			3,630
Consulting
Mercer	1,046			1,071			2,083			2,132
Oliver Wyman Group	441			449			825			820
Total Consulting	1,487			1,520			2,908			2,952
Total Operating Segments	3,237			3,311			6,461			6,582
Corporate / Eliminations	(12		)	(11		)	(21		)	(18		)
Total	$	3,225		$	3,300		$	6,440		$	6,564

16.    New Accounting Guidance

In May 2015, the FASB issued new guidance which removes the requirement to present certain investments for which the practical expedient is used to measure fair value at net asset value within the fair value hierarchy table. Instead, an entity would be required to include those investments as a reconciling item so that the total fair value amount of investments in the disclosure is consistent with the fair value investment balance on the statement of net assets. This guidance is effective for fiscal years beginning after December 13, 2015. The adoption of this new guidance will affect footnote disclosure only and is not expected to have a material impact on the Company's financial statements.

In April 2015, the FASB issued new accounting guidance intended to simplify the presentation of debt issuance costs. The new guidance requires that debt issuance costs related to a recognized debt liability be presented

in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the new guidance. The guidance is effective for periods beginning after December 15, 2015. The new guidance should be applied on a retrospective basis, wherein the balance sheet of each individual period presented should be adjusted to reflect the period-specific effects of applying the new guidance. Upon transition, an entity is required to comply with the applicable disclosures for a change in an accounting principle. Adoption of the guidance is not expected to materially affect the Company's financial condition, results of operations or cash flows.

In February 2015, the FASB issued new accounting guidance intended to improve targeted areas of consolidation guidance for legal entities such as limited partnerships, limited liability corporations and securitization structures. The guidance focuses on the consolidation evaluation for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. The guidance is effective for periods beginning after December 15, 2015. Early adoption is permitted, including adoption in an interim period. The Company is currently evaluating the impact of the adoption of the guidance on its financial condition and results of operations.

In January 2015, the FASB issued new accounting guidance that eliminated the concept of extraordinary items. The guidance is effective for annual periods beginning after December 15, 2015. The guidance may be adopted prospectively, or retrospectively to all prior periods presented in the financial statements. Early adoption is permitted provided the guidance is applied from the beginning of the fiscal year of adoption. Adoption of the guidance is not expected to materially affect the Company's financial condition, results of operations or cash flows.

In June 2014, the FASB issued new accounting guidance to clarify the treatment of share-based payment awards that require a specific performance target to be achieved in order for employees to be eligible to vest in the awards which include terms that may provide that the performance conditions could be achieved after an employee completes the requisite service period. The guidance requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. As such, a reporting entity should apply the existing guidance as it relates to awards with performance conditions that affect vesting. The guidance is effective for annual periods beginning after December 15, 2015. Early adoption is permitted. Adoption

27

of the guidance is not expected to materially affect the Company's financial condition, results of operations or cash flows.

In May 2014, the FASB issued new accounting guidance to clarify the principles for revenue recognition. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve that principle, the entity should apply the following steps: identify the contract(s) with the customer, identify the performance obligations in the contract(s), determine the transaction price, allocate the transaction price to the performance obligations in the contract and recognize revenue when (or as) the entity satisfies a performance obligation. The guidance was initially effective for fiscal years beginning after December 15, 2016, including interim periods within that reporting period, but was deferred to fiscal years beginning on or after December 15, 2017. Entities are permitted to adopt the guidance under one of the following methods: retrospectively to each prior reporting period presented (with certain practical expedients allowed) or retrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application. If an entity elects this transition method, it must provide disclosures in reporting periods that include the date of initial application of the amount by which each financial statement line item is affected in the current reporting period by application of the guidance as compared to guidance that was in effect before the change, and an explanation for the reasons for significant changes. The Company is currently evaluating the impact of the adoption of the guidance on its financial condition and results of operations.

In April 2014, the FASB issued new accounting guidance which changes the criteria for reporting discontinued operations and enhances disclosures in this area. Under the new guidance, only disposals representing a strategic shift in operations, such as disposal of a major geographic area or a major line of business, should be presented as discontinued operations. Those strategic shifts should have a major impact on the organization's operations and financial results. In addition, the new guidance requires expanded disclosures about discontinued operations. The guidance is effective for fiscal years beginning on or after December 15, 2014. Adoption of the guidance did not affect the Company's financial condition, results of operations or cash flows.

28

Item 2.     Management’s Discussion and Analysis of Financial Condition and Results of Operations.

General

Marsh & McLennan Companies, Inc. (the "Company") is a global professional services firm offering clients advice and solutions in risk, strategy, and people. It is the parent company of a number of leading risk experts and specialty consultants, including: Marsh, the insurance broker, intermediary and risk advisor; Guy Carpenter, the risk and reinsurance specialist; Mercer, the provider of HR and related financial advice and services; and Oliver Wyman Group, the management, economic and brand consultancy. With approximately 57,000 employees worldwide and annual revenue of more than $13 billion, the Company provides analysis, advice and transactional capabilities to clients in more than 130 countries.

The Company conducts business through two segments:

• Risk and Insurance Services includes risk management activities (risk advice, risk transfer and risk control and mitigation solutions) as well as insurance and reinsurance broking and services. We conduct business in this segment through Marsh and Guy Carpenter.

• Consulting includes Health, Retirement, Talent and Investments consulting services and products, and specialized management, economic and brand consulting services. We conduct business in this segment through Mercer and Oliver Wyman Group.

A reconciliation of segment operating income to total operating income is included in Note 15 to the consolidated financial statements included in Part I Item 1 in this report. The accounting policies used for each segment are the same as those used for the consolidated financial statements.

This Management's Discussion & Analysis ("MD&A") contains forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. See "Information Concerning Forward-Looking Statements" at the outset of this report.

29

Consolidated Results of Operations

	Three Months Ended June 30,					Six Months Ended June 30,
(In millions, except per share figures)	2015		2014			2015			2014
Revenue	$	3,225	$	3,300		$	6,440		$	6,564
Expense:
Compensation and Benefits	1,826		1,876			3,556			3,715
Other Operating Expenses	770		777			1,520			1,529
Operating Expenses	2,596		2,653			5,076			5,244
Operating Income	629		647			1,364			1,320
Income from Continuing Operations	429		440			927			897
Discontinued Operations, net of tax	—		(2		)	(3		)	(3		)
Net Income Before Non-Controlling Interests	429		438			924			894
Net Income Attributable to the Company	$	419	$	431		$	901		$	874
Income From Continuing Operations Per Share:
Basic	$	0.78	$	0.79		$	1.68		$	1.60
Diluted	$	0.77	$	0.78		$	1.66		$	1.58
Net Income Per Share Attributable to the Company:
Basic	$	0.78	$	0.78		$	1.68		$	1.59
Diluted	$	0.77	$	0.77		$	1.66		$	1.57
Average Number of Shares Outstanding:
Basic	535		549			537			548
Diluted	541		556			543			556
Shares Outstanding at June 30	531		546			531			546

The Company's consolidated operating income decreased 3% to $629 million in the second quarter of 2015 compared with $647 million in the prior year. This reflects the impact of a 2% decrease in revenue, partly offset by a 2% decrease in expense. In the second quarter of 2015, the Company continued to be adversely impacted by the strengthened U.S. dollar, which had the effect of reducing the translated value of the Company’s foreign earnings while retirement benefits costs worldwide increased due to lower interest rates.

Diluted net income per share from continuing operations was $.77, the same as last year, reflecting a 3% decrease in the average number of diluted shares outstanding as compared to the same period last year. Shares issued related to the vesting of share awards and exercise of employee stock options were more than offset by share repurchases over the past four quarters.

Consolidated operating income was approximately $1.4 billion in the first six months of 2015 compared with $1.3 billion in the first six months of 2014, reflecting the adverse effect of the strengthened U.S. dollar and higher retirement benefits costs. The impact of these headwinds was partly offset by the impact of a net credit from the termination of the Company's post-65 retiree medical reimbursement plan in the U.S. (the "RRA plan") of approximately $125 million, which was recorded in the first quarter.

30

Consolidated Revenue and Expense

The Company conducts business in many countries, as a result of which the impact of foreign exchange rate movements may impact period-to-period comparisons of revenue. Similarly, certain items that affect comparability, such as the revenue impact of acquisitions and dispositions, including transfers among businesses, may impact period-to-period comparisons of revenue. Underlying revenue measures the change in revenue from one period to another by isolating these impacts. The impact of foreign currency exchange fluctuations, acquisitions and dispositions, including transfers among businesses, on the Company’s operating revenues by segment was as follows:

	Three Months Ended June 30,						% Change GAAP Revenue		Components of Revenue Change*
									Currency Impact		Acquisitions/ Dispositions Impact		Underlying Revenue
(In millions of dollars)	2015			2014
Risk and Insurance Services
Marsh	$	1,470		$	1,490		(1	)%	(6	)%	2	%	3	%
Guy Carpenter	275			295			(6	)%	(5	)%	—		(2	)%
Subtotal	1,745			1,785			(2	)%	(6	)%	2	%	2	%
Fiduciary Interest Income	5			6
Total Risk and Insurance Services	1,750			1,791			(2	)%	(6	)%	2	%	2	%
Consulting
Mercer	1,046			1,071			(2	)%	(7	)%	1	%	4	%
Oliver Wyman Group	441			449			(2	)%	(6	)%	2	%	3	%
Total Consulting	1,487			1,520			(2	)%	(7	)%	1	%	4	%
Corporate/Eliminations	(12		)	(11		)
Total Revenue	$	3,225		$	3,300		(2	)%	(7	)%	1	%	3	%

	Three Months Ended June 30,				% Change GAAP Revenue		Components of Revenue Change*
							Currency Impact		Acquisitions/ Dispositions Impact		Underlying Revenue
(In millions of dollars)	2015		2014
Marsh:
EMEA	$	439	$	478	(8	)%	(11	)%	—		3	%
Asia Pacific	176		194		(10	)%	(9	)%	—		—
Latin America	95		102		(7	)%	(16	)%	4	%	5	%
Total International	710		774		(8	)%	(11	)%	1	%	2	%
U.S. / Canada	760		716		6	%	(1	)%	3	%	4	%
Total Marsh	$	1,470	$	1,490	(1	)%	(6	)%	2	%	3	%
Mercer:
Health	$	391	$	393	(1	)%	(4	)%	—		3	%
Retirement	325		345		(6	)%	(8	)%	—		2	%
Investments	207		210		(2	)%	(12	)%	3	%	8	%
Talent	123		123		(1	)%	(8	)%	3	%	4	%
Total Mercer	$	1,046	$	1,071	(2	)%	(7	)%	1	%	4	%

Underlying revenue measures the change in revenue using consistent currency exchange rates, excluding the impact of certain items that affect comparability such as: acquisitions, dispositions and transfers among businesses.
*	Components of revenue change may not add due to rounding.

31

	Six Months Ended June 30,						% Change GAAP Revenue		Components of Revenue Change*
									Currency Impact		Acquisitions/ Dispositions Impact		Underlying Revenue
(In millions of dollars)	2015			2014
Risk and Insurance Services
Marsh	$	2,900		$	2,942		(1	)%	(7	)%	2	%	3	%
Guy Carpenter	643			676			(5	)%	(4	)%	(1	)%	—
Subtotal	3,543			3,618			(2	)%	(6	)%	2	%	2	%
Fiduciary Interest Income	10			12
Total Risk and Insurance Services	3,553			3,630			(2	)%	(6	)%	2	%	2	%
Consulting
Mercer	2,083			2,132			(2	)%	(7	)%	1	%	4	%
Oliver Wyman Group	825			820			1	%	(6	)%	2	%	5	%
Total Consulting	2,908			2,952			(1	)%	(7	)%	1	%	4	%
Corporate/Eliminations	(21		)	(18		)
Total Revenue	$	6,440		$	6,564		(2	)%	(6	)%	1	%	3	%

	Six Months Ended June 30,				% Change GAAP Revenue		Components of Revenue Change*
							Currency Impact		Acquisitions/ Dispositions Impact		Underlying Revenue
(In millions of dollars)	2015		2014
Marsh:
EMEA	$	1,002	$	1,095	(8	)%	(11	)%	1	%	2	%
Asia Pacific	324		345		(6	)%	(8	)%	—		2	%
Latin America	176		186		(5	)%	(14	)%	4	%	5	%
Total International	1,502		1,626		(8	)%	(11	)%	1	%	2	%
U.S. / Canada	1,398		1,316		6	%	(1	)%	4	%	4	%
Total Marsh	$	2,900	$	2,942	(1	)%	(7	)%	2	%	3	%
Mercer:
Health	$	775	$	781	(1	)%	(4	)%	—		3	%
Retirement	656		702		(7	)%	(8	)%	—		1	%
Investments	412		409		1	%	(11	)%	2	%	10	%
Talent	240		240		—		(7	)%	3	%	4	%
Total Mercer	$	2,083	$	2,132	(2	)%	(7	)%	1	%	4	%

Underlying revenue measures the change in revenue using consistent currency exchange rates, excluding the impact of certain items that affect comparability, such as: acquisitions, dispositions and transfers among businesses.
*	Components of revenue change may not add due to rounding.

Revenue

Consolidated revenue for the second quarter of 2015 was $3.2 billion, a decrease of 2% on a reported basis, reflecting a 3% increase on an underlying basis and a 1% increase from the impact of acquisitions, which were more than offset by a decrease of 7% from the impact of foreign currency translation.

Revenue in the Risk and Insurance Services segment for the second quarter of 2015 was $1.8 billion, a decrease of 2% from the same period last year. Revenue increased 2% on an underlying basis and 2% from the impact of acquisitions, offset by a 6% decrease from the impact of foreign currency translation. Consulting revenue of $1.5 billion in the second quarter of 2015 decreased 2% from the same period in 2014. Revenue increased 4% on an underlying basis and 1% from the impact of acquisitions, offset by a 7% decrease from the impact of foreign exchange.

32

For the first six months of 2015, Risk & Insurance Services revenue decreased 2% from the same period in 2014, but increased 2% on an underlying basis. Consulting revenue decreased 1% compared with the six-month period last year. On an underlying basis, Consulting revenue increased 4%, reflecting increases of 4% at Mercer and 5% at Oliver Wyman.

Operating Expense

Consolidated operating expense in the second quarter decreased 2% compared with the same period last year, reflecting a 3% increase on an underlying basis and a 2% increase from acquisitions, offset by a 7% decrease from the impact of foreign currency translation. The increase in underlying expenses is primarily due to higher base salary and retirement benefits costs.

Expenses for the six months of 2015 decreased 3% compared to the same period in 2014, reflecting a 2% increase on an underlying basis and a 2% increase from acquisitions, offset by a 7% decrease from the impact of foreign currency translation. The underlying expense increase reflects higher base salary and retirement benefits costs, partly offset by a net benefit from actions relating to the RRA plan.

Risk and Insurance Services

The results of operations for the Risk and Insurance Services segment are presented below:

For the Three and Six Months Ended June 30,	Three Months						Six Months
(In millions of dollars)	2015			2014			2015			2014
Revenue	$	1,750		$	1,791		$	3,553		$	3,630
Compensation and Benefits	909			943			1,771			1,884
Other Expenses	414			400			822			805
Expense	1,323			1,343			2,593			2,689
Operating Income	$	427		$	448		$	960		$	941
Operating Income Margin	24.4		%	25.0		%	27.0		%	25.9		%

Revenue

Revenue in the Risk and Insurance Services segment in the second quarter of 2015 was $1.8 billion, a decrease of 2% as compared to the same period last year, reflecting a 2% increase in underlying revenue and a 2% increase related to acquisitions, which were more than offset by a 6% decrease from the impact of foreign currency translation.

In Marsh, revenue in the second quarter of 2015 was $1.5 billion, a decrease of 1% compared with the same quarter of the prior year, reflecting an increase of 3% on an underlying basis and a 2% increase from acquisitions, offset by a 6% decrease from the impact of foreign currency translation. Underlying revenue increased 4% in U.S./Canada.The international division grew 2% on an underlying basis, with growth of 3% in EMEA and 5% in Latin America. Revenue growth in Asia Pacific was flat compared to the same period in 2014. Guy Carpenter's second quarter revenue decreased 6% reflecting a decrease of 2% on an underlying basis and a decrease of 5% from the impact of foreign exchange translation.

Revenue in the Risk and Insurance Services segment decreased 2% in the first six months of 2015 compared with 2014, but increased 2% on an underlying basis. Underlying revenue increased 4% in U.S./Canada. The international division increased 2% on an underlying basis, reflecting a 2% increase in EMEA, a 2% increase in Asia Pacific and a 5% increase in Latin America.

Expense

Expenses in the Risk and Insurance Services segment decreased 1% in the second quarter of 2015 compared with the same period last year, but increased 4% on an underlying basis. The impact of foreign currency translation reduced expenses by 7%, offset by a 2% increase related to acquisitions. The increase in underlying expenses is primarily due to higher base salaries, retirement benefits costs and charges for adjustments to acquisition-related contingent consideration liabilities.

Expenses for the six-month period decreased 4% compared to the prior year, reflecting a 1% increase in underlying expenses, a 2% increase related to acquisitions and a 7% decrease for the impact of foreign exchange. The increase in underlying expenses reflects higher base salaries, retirement benefits costs and charges for

33

adjustments to acquisition-related contingent consideration liabilities, partly offset by the impact of the net benefit from the termination of the RRA plan.

Consulting

The results of operations for the Consulting segment are presented below:

For the Three and Six Months Ended June 30,	Three Months						Six Months
(In millions of dollars)	2015			2014			2015			2014
Revenue	$	1,487		$	1,520		$	2,908		$	2,952
Compensation and Benefits	831			851			1,614			1,664
Other Expenses	408			422			798			816
Expense	1,239			1,273			2,412			2,480
Operating Income	$	248		$	247		$	496		$	472
Operating Income Margin	16.7		%	16.2		%	17.1		%	16.0		%

Revenue

Consulting revenue in the second quarter of 2015 decreased 2%, reflecting a 4% increase on an underlying basis and a 1% increase related to acquisitions, which were more than offset by a 7% decrease from the impact of foreign currency translation. Mercer's revenue decreased 2% to $1.0 billion. On an underlying basis, Mercer's revenue increased 4% compared to the same period last year. The increase in underlying revenue was driven bygrowth in Health, Talent and Investments, which increased 3%, 4% and 8%, respectively. Oliver Wyman's revenue decreased 2% to $441 million in the second quarter of 2015 as compared to the same period last year, reflecting a 3% increase on an underlying basis and a 2% increase from acquisitions, offset by a decrease of 6% from the impact of foreign currency translation.

Consulting revenue in the first six months of 2015 decreased 1%, but increased 4% on an underlying basis compared with 2014, with underlying growth of 4% at Mercer and 5% at Oliver Wyman.

Expense

Consulting expenses in the second quarter of 2015 decreased 3% as compared to the second quarter of 2014. Underlying expenses increased 3%, offset by a 7% decrease from the impact of foreign currency translation. The underlying expense increase in the second quarter of 2015 was primarily due to higher base salaries.

Underlying expenses for the six months of 2015 increased 3% as compared to 2014, primarily due to higher base salaries, partly offset by the impact of the net benefit from the termination of the RRA plan.

Corporate and Other

Corporate expenses of $46 million and $92 million for the three- and six-month periods ended June 30, 2015, respectively, were slightly lower than expenses for the same periods in the prior year.

Interest

Interest income earned on corporate funds was $3 million in the second quarter of 2015, compared with $5 million in the second quarter of 2014, primarily due to alower level of invested funds. Interest expense decreased $2 million in 2015 compared with the second quarter of 2014 due to lower average interest rates compared with the prior year, partly offset by higher average debt outstanding.

Investment Income

The caption "Investment income (loss)" in the consolidated statements of income comprises realized and unrealized gains and losses from investments recognized in current earnings. It includes, when applicable, other than temporary declines in the value of debt and available-for-sale securities and equity method gains or losses on its investment in private equity. The Company's investments may include direct investments in insurance or consulting companies and investments in private equity funds. The Company recorded investment income of $3 million for the three months ended June 30, 2015 as compared to a loss of $2 million in 2014. For the first six months of 2015, the Company recorded investment income of $5 million compared to $11 million for the same period in 2014. Investment income in 2014 included $7 million related to our general partner carried interest in Trident III that was

34

no longer subject to claw-back. At June 30, 2015, the Company had deferred performance fees of approximately $25 million to $28 million related to Trident III. Stonepoint Capital, investment manager of Trident III, recently announced the expected harvesting of the remaining two investments of Trident III. Those transactions are expected to close in the third quarter of 2015, which would result in the recognition of the remaining deferred performance fees.

Income Taxes

The Company's effective tax rate in the second quarter of 2015 was 27.9% compared with 27.6% in the second quarter of 2014. The effective tax rate for the first six months of 2015 and 2014 was 28.6%. The rates reflect non-U.S. income taxed at rates below the U.S. statutory rate, including the effect of repatriation as well as the impact of discrete tax matters such as tax legislation, changes in valuation allowances, the resolution of tax examinations and expiration of statutes of limitations.

The effective tax rate is sensitive to the geographic mix and repatriation of the Company's earnings, which may result in higher or lower tax rates. U.S. federal and state corporate tax rates substantially exceed tax rates applicable in most jurisdictions outside the U.S. A significant portion of the Company's profits are earned outside the U.S. In 2015, the forecasted pre-tax income in the U.K., Canada, Australia, Germany, Bermuda and France is expected to account for approximately 60% of the Company's total non-U.S. pre-tax income, with estimated effective tax rates in those countries of 21%, 27%, 30%, 33%, 0% and 38%, respectively. Consequently, continued improvement in the profitability of the Company's U.S.-based operations would tend to result in higher effective tax rates. A loss in one jurisdiction, generally, cannot offset earnings in another, and within certain jurisdictions profits and losses may not offset between entities. Consequently, losses in certain operations may require valuation allowances affecting the effective tax rate, depending on estimates of the realizability of associated deferred tax assets. The tax rate is also sensitive to changes in unrecognized tax benefits, including the impact of settled tax audits and expired statutes of limitation.

Changes in tax laws or tax rulings may have a significant impact on our effective tax rate. Discussions continue within Congress and the Administration about broad reform of the corporate tax system in the U.S. It is not possible to predict the ultimate outcome of these discussions. Future legislation could have a material impact on our effective tax rate and consolidated financial statements due to reforms that could include changes in the corporate tax rate and in the way U.S. corporations are taxed on foreign earnings.

During the second quarter of 2015, the Company settled a U.S. federal tax audit with the IRS for the year 2013 and in the second quarter of 2014, settled a U.S. federal tax audit with the IRS for the year 2012.

The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in the tax return. The Company's gross unrecognized tax benefits increased from $97 million at December 31, 2014 to $100 million at June 30, 2015. It is reasonably possible that the total amount of unrecognized tax benefits will decrease by an amount between zero and approximately $24 million within the next twelve months due to settlements of audits and expirations of statutes of limitation.

35

Liquidity and Capital Resources

The Company is organized as a holding company, a legal entity separate and distinct from its operating subsidiaries. As a holding company without significant operations of its own, the Company is dependent upon dividends and other payments from its operating subsidiaries to meet its obligations for paying principal and interest on outstanding debt obligations, for paying dividends to stockholders, for share repurchases and for corporate expenses. Other sources of liquidity include borrowing facilities discussed below in Financing Cash Flows.

The Company derives a significant portion of its revenue and operating profit from operating subsidiaries located outside of the United States. Funds from the Company’s operating subsidiaries located outside of the United States are regularly repatriated to the United States out of annual earnings. At December 31, 2014, the Company had approximately $1.3 billion of cash and cash equivalents in its foreign operations, substantially all of which is considered to be permanently invested in those operations to fund foreign investments and working capital needs. At the current time, the Company does not intend to repatriate any of this cash. The non-U.S. cash and cash equivalents considered permanently reinvested includes approximately $198 million of operating funds required to be maintained for regulatory requirements or as collateral under certain captive insurance arrangements. The Company expects to continue its practice of repatriating foreign funds out of current annual earnings. The analysis of the portion of 2015 earnings that the Company expects to repatriate and the portion that will be permanently reinvested will be finalized later in the year as the amount of non-U.S. earnings and the Company's cash requirements become more certain. While management does not foresee a need to repatriate the funds which are currently deemed permanently invested, if facts or circumstances change, management could elect to repatriate them, which could result in higher effective tax rates in the future.

Cash and cash equivalents on our consolidated balance sheets includes funds available for general corporate purposes. Funds held on behalf of clients in a fiduciary capacity are segregated and shown separately in the consolidated balance sheets as an offset to fiduciary liabilities. Fiduciary funds cannot be used for general corporate purposes, and should not be considered as a source of liquidity for the Company.

Operating Cash Flows

The Company generated $106 million of cash from operations for the six months ended June 30, 2015, compared with $258 million provided by operations for the same period in 2014. These amounts reflect the net income of the Company during those periods, excluding gains or losses from investments, adjusted for non-cash charges and changes in working capital which relate primarily to the timing of payments of accrued liabilities or receipts of assets and pension contributions. The use of cash is driven primarily by cash award payments, which are generally paid in the first quarter of each each year.

Pension Related Items

The Company's policy for funding its tax-qualified defined benefit plans is to contribute amounts at least sufficient to meet the funding requirements set forth in the applicable laws or regulations of the U.S. and other jurisdictions. During the first six months of 2015, the Company contributed $75 million to its non-U.S. pension plans and $13 million to its U.S. pension plans. In the first six months of 2014, the Company contributed $94 million to its non-U.S. pension plans and $12 million to its U.S. pension plans.

In the U.S., contributions to the tax-qualified defined benefit plans are based on ERISA guidelines and the Company generally expects to maintain a funded status of 80% or more of the liability determined under the ERISA guidelines. The pension stabilization provisions included in the "Moving Ahead for Progress in the 21st Century Act", enacted on July 6, 2012, changed the methodology for determining the discount rate used for calculating plan liabilities under ERISA, which determines, in part, the funding requirements.

The Company has a large number of non-U.S. defined benefit pension plans, the largest of which are in the U.K., which comprise approximately 83% of non-U.S. plan assets. In the U.K., contributions to defined benefit pension plans are determined through a negotiation process between the Company and the plans' trustee that typically occurs every three years in conjunction with the actuarial valuation of the plans. This process is governed by U.K. pension regulations. The assumptions that result from the funding negotiations are different from those used for U.S. GAAP and currently result in a lower funded status than under U.S. GAAP. In March 2014, the Company and the Trustee of the U.K. Defined Benefits Plans agreed to a funding deficit recovery plan for the U.K. defined benefit pension plans. The current agreement with the Trustee sets out the annual deficit contributions which would be due based on the deficit at December 31, 2012. The funding level is subject to re-assessment, in most cases on November 1^st of each year. If the funding level on November 1^st has sufficiently improved, no deficit funding contributions will be required in the following year, and the contribution amount will be deferred. As part of a long-term strategy, which depends on having greater influence over asset allocation and overall investment decisions,

36

the Company has agreed to support annual deficit contributions by the U.K. operating companies under certain circumstances, up to GBP 450 million over a seven-year period.

As a result of a significant improvement in funded status during 2013, no additional deficit recovery contributions were required in 2014. Based on the funding test carried out at November 1, 2014, Company contributions to the U.K. plans in 2015 are expected to be $54 million. The U.K. employers also contribute an expense allowance each year of approximately $9 million.

The Company expects to fund an additional $94 million to its non-U.S. defined benefit plans over the remainder of 2015, comprising approximately $60 million to plans outside of the U.K. and $34 million to the U.K. plans.

Funding amounts may be influenced by future asset performance, the level of discount rates and other variables impacting the funded status of the plan.

After completion of a consultation period with affected colleagues, in January 2014, the Company amended its U.K. defined benefit pension plans to close those plans to future benefit accruals effective August 1, 2014 and replaced those plans, along with its existing defined contribution plans, with a new, comprehensive defined contribution arrangement. This change resulted in a curtailment of the U.K. defined benefit plans, and as required under GAAP, the Company re-measured the defined benefit plans’ assets and liabilities at the amendment date, based on assumptions and market conditions at that date. As a result of the re-measurement, the projected benefit obligation ("PBO") increased by approximately $147 million and the funded status decreased by approximately $137 million. The change in the PBO and in the funded status relates primarily to a decrease in the discount rate at the re-measurement date. The Company recognized a curtailment gain of $65 million in the first quarter of 2014, primarily resulting from the recognition of the remaining unamortized prior service credit related to a plan amendment made in December 2012. This gain was mostly offset by the cost of a transition benefit to certain employees most impacted by the amendment.

Financing Cash Flows

Net cash used for financing activities was $488 million for the period ended June 30, 2015, compared with $9 million net cash provided by such activities for the same period in 2014.

The Company had $50 million of commercial paper outstanding at June 30, 2015 with a weighted average interest rate of 0.54%.

In March 2015, the Company issued $500 million of 2.35% five-year senior notes. The Company used the net proceeds for general corporate purposes.

In September 2014, the Company issued $300 million of 2.35% five-year senior notes and $500 million of 3.50% 10.5-year senior notes. In October 2014, a significant portion of the net proceeds of this offering was used to redeem $630 million of debt, including $230 million of 5.75% senior notes due in September 2015 and $400 million of 9.25% senior notes due in 2019. Total cash outflow related to this transaction was approximately $765 million, including a $137 million cost for early redemption, which was reflected as a charge in the consolidated statements of income in the fourth quarter of 2014.

During the second quarter of 2014, the Company issued $600 million of 3.50% ten-year senior notes. The net proceeds of this offering were used for general corporate purposes, including the repayment of $320 million of 5.375% senior notes that matured in July 2014.

The Company and certain of its foreign subsidiaries maintain a $1.2 billion multi-currency five-year unsecured revolving credit facility. The interest rate on this facility is based on LIBOR plus a fixed margin which varies with the Company's credit ratings, which are set forth below. This facility expires in March 2019 and requires the Company to maintain certain coverage and leverage ratios which are tested quarterly. There were no borrowings outstanding under this facility at June 30, 2015.

In December 2012, the Company closed on a $50 million, three-year delayed draw term loan facility. The interest rate on this facility is based on LIBOR plus an agreed fixed margin which varies with the Company's credit ratings. The facility requires the Company to maintain coverage ratios and leverage ratios consistent with the current revolving credit facility discussed above. The Company had $50 million of borrowings under this facility at June 30, 2015.

The Company's senior debt is currently rated Baa1 by Moody's and A- by Standard & Poor's. The Company's short-term debt is currently rated P-2 by Moody's and A-2 by Standard & Poor's. The Company carries a stable outlook from Moody's and Standard & Poor's.

37

During the first six months of 2015, the Company paid $33 million of contingent payments related to acquisitions made in prior periods. These payments are split between financing and operating cash flows in the consolidated statements of cash flows. The portion of these payments reflected as a financing activity is $12 million, which represents payments related to the contingent consideration liability that was recorded on the date of acquisition. Payments related to increases in the contingent consideration liability subsequent to the date of acquisition, which were $21 million for the first six months of 2015, are reflected as operating cash flows. In the first six months of 2015, the Company paid $28 million of deferred purchase consideration related to acquisitions made in prior years. Remaining deferred cash payments of approximately $117 million and estimated future contingent consideration payments of $244 million for acquisitions completed in the first six months of 2015 and in prior years are recorded in accounts payable and accrued liabilities or other liabilities in the consolidated balance sheet at June 30, 2015.

In the first six months of 2014, the Company paid $36 million of contingent payments related to acquisitions made in prior periods. Of this amount, $24 million was reported as financing cash flows and $12 million as operating cash flows. In addition, in the first six months of 2014, the Company paid $9 million of deferred purchase consideration related to acquisitions made in prior years.

In May 2015, the Board of Directors renewed the Company's share repurchase program, allowing management to buy back up to $2 billion of shares going forward. At June 30, 2015, the Company remains authorized to purchase additional shares of its common stock up to a value of approximately $1.8 billion. There is no time limit on this authorization.

During the first six months of 2015, the Company repurchased approximately 13.5 million shares of its common stock for consideration of $775 million. During the first six months of 2014, the Company repurchased approximately 7 million shares of its common stock for consideration of $350 million.

The Company paid dividends on its common shares of $302 million ($0.56 per share) during the first six months of 2015, as compared with $275 million ($0.50 per share) during the first six months of 2014.

Investing Cash Flows

Net cash used for investing activities amounted to $528 million in the first six months of 2015, compared with $581million used during the same period in 2014.

The Company made eight acquisitions during the first six months of 2015. Cash used for these acquisitions, net of cash acquired, was $231 million.

During 2014, Mercer acquired 34% of the common shares of South Africa-based Alexander Forbes Group Holdings Limited ("Alexander Forbes"). Mercer purchased its stake in Alexander Forbes in two tranches at 7.50 South African Rand per share. On July 24, 2014, the Company purchased 14.9% of Alexander Forbes common shares for approximately $137 million, and in October 2014, the Company paid approximately $166 million for the remaining 19.1% of Alexander Forbes common shares. The investment in Alexander Forbes is accounted for using the equity method and included in other assets in the consolidated balance sheet.

The Company madenine acquisitions during the first six months of 2014. Cash used for these acquisitions, net of cash acquired, was $374 million.

The Company used cash of $176 million to purchase fixed assets and capitalized software in the first six months of 2015, compared with $202 million in the first six months of 2014, primarily related to computer equipment and software purchases, software development costs and the refurbishing and modernizing of office facilities.

On February 24, 2015, Mercer purchased shares of common stock of Benefitfocus (NASDAQ:BNFT) constituting approximately 9.9% of BNFT's outstanding capital stock as of the acquisition date. The purchase price for the BNFT shares and certain other rights and other consideration was approximately $75 million.

The Company has commitments for potential future investments of approximately $50 million in three private equity funds that invest primarily in financial services companies.

38

Commitments and Obligations

The Company’s contractual obligations of the types identified in the table below were of the following amounts as of June 30, 2015:

(In millions of dollars)	Payment due by Period
Contractual Obligations	Total		Within 1 Year		1-3 Years		4-5 Years		After 5 Years
Short-term debt	$	111	$	111	$	—	$	—	$	—
Long-term debt	3,838		—		274		1,076		2,488
Interest on long-term debt	1,332		144		279		258		651
Net operating leases	2,060		302		498		374		886
Service agreements	345		154		141		49		1
Other long-term obligations	412		91		223		96		2
Total	$	8,098	$	802	$	1,415	$	1,853	$	4,028

The above does not include unrecognized tax benefits of $100 million, accounted for under ASC Topic No. 740, as the Company is unable to reasonably predict the timing of settlement of these liabilities, other than approximately $5 million that may become payable within one year. The above does not include the indemnified liabilities discussed in Note 14 as the Company is unable to reasonably predict the timing of settlement of these liabilities. The above does not include net pension liabilities for underfunded plans of approximately $1.9 billion because the timing and amount of ultimate payment of such liability is dependent upon future events, including, but not limited to, future returns on plan assets and changes in the discount rate used to measure the liabilities. The Company expects to contribute approximately $12 million and $94 million to its U.S. and non-U.S. pension plans, respectively, in the remainder of 2015.

New Accounting Guidance

Note 16 to the consolidated financial statements in this report contains a discussion of recently issued accounting guidance and their impact or potential future impact on the Company’s financial results, if determinable.

39

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

Market Risk and Credit Risk

Certain of the Company’s revenues, expenses, assets and liabilities are exposed to the impact of interest rate changes and fluctuations in foreign currency exchange rates and equity markets.

The Company had the following investments subject to variable interest rates:

(In millions of dollars)	June 30, 2015
Cash and cash equivalents invested in money market funds, certificates of deposit and time deposits	$	930
Fiduciary cash and investments	$	4,869

Based on the above balances, if short-term interest rates increased or decreased by 10%, or 7 basis points, over the course of the remainder of the year, annual interest income, including interest earned on fiduciary funds, would increase or decrease by approximately $2 million.

In addition to interest rate risk, our cash and cash equivalents and fiduciary fund investments are subject to potential loss of value due to counter-party credit risk. To minimize this risk, the Company and its subsidiaries invest pursuant to a Board-approved investment policy. The policy mandates the preservation of principal and liquidity and requires broad diversification with counter-party limits assigned based primarily on credit rating and type of investment. The Company carefully monitors its cash and fiduciary fund investments and will further restrict the portfolio as appropriate in response to market conditions. The majority of cash and fiduciary fund investments are invested in short-term bank deposits.

Foreign Currency Risk

The translated values of revenue and expense from the Company’s international operations are subject to fluctuations due to changes in currency exchange rates. The non-U.S. based revenue that is exposed to foreign exchange fluctuations is approximately 55% of total revenue. We periodically use forward contracts to limit foreign currency exchange rate exposure on net income and cash flows for specific, clearly defined transactions arising in the ordinary course of business. Although the Company has significant revenue generated in foreign locations which is subject to foreign exchange rate fluctuations, in most cases both the foreign currency revenue and expenses are in the functional currency of the foreign location. As such, the U.S. dollar translation of both the revenues and expenses, as well as the potentially offsetting movements of various currencies against the U.S. dollar, generally tend to mitigate the impact on net operating income of foreign currency risk over the long term. The Company estimates that a 10% movement of major foreign currencies (Euro, Sterling, Australian dollar and Canadian dollar) in the same direction against the U.S. dollar would increase or decrease full year net operating income by approximately $65 million, as compared to the prior year. In the fourth quarter of 2014 and the first quarter of 2015, the U.S. dollar strengthened significantly against most currencies. If exchange rates at June 30, 2015 hold constant throughout 2015, the Company estimates the year-over-year impact from conversion of foreign currency earnings would reduce full year net operating income by approximately $135 million. In Continental Europe, the largest amount of revenue from renewals for the Risk & Insurance segment occurs in the first quarter. Consequently, a significant portion of the year-over-year foreign exchange impact occurred in the first quarter.

Equity Price Risk

The Company holds investments in both public and private companies as well as private equity funds that invest primarily in financial services companies. The Company holds publicly traded investments of $91 million of which $17 million are classified as available for sale and $74 million are accounted for using the cost method, as the shares are categorized as restricted and cannot be sold for more than one year. Non-publicly traded investments of $14 million are accounted for using the cost method and an additional $424 million of investments are accounted for using the equity method. These investments are subject to risk of changes in market value, which if determined to be other than temporary, could result in realized impairment losses. The Company periodically reviews the carrying value of such investments to determine if any valuation adjustments are appropriate under the applicable accounting pronouncements.

Other

See Note 14 to the consolidated financial statements included elsewhere in this report for a discussion of lawsuits and regulatory proceedings.

40

Item 4. Controls & Procedures.

a. Evaluation of Disclosure Controls and Procedures

Based on their evaluation, as of the end of the period covered by this report, the Company’s Chief Executive Officer and Chief Financial Officer have concluded that the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) or 15d-15(e) under the Securities Exchange Act of 1934) are effective.

b. Changes in Internal Control

There were no changes in the Company’s internal control over financial reporting identified in connection with the evaluation required by Rules 13a-15(d) or 15d-15(d) under the Securities Exchange Act of 1934 that occurred during the Company’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

41

PART II. OTHER INFORMATION

Item 1.        Legal Proceedings.

The information set forth in Note 14 to the consolidated financial statements provided in Part I of this report is incorporated herein by reference.

Item 1A.     Risk Factors.

The Company and its subsidiaries face a number of risks and uncertainties. In addition to the other information in this report and our other filings with the SEC, readers should consider carefully the risk factors discussed in "Part I, Item 1A. Risk Factors" in our Annual Report on Form 10-K for the year ended December 31, 2014. If any of the risks described in our Annual Report on Form 10-K or such other risks actually occur, our business, results of operations or financial condition could be materially adversely affected.

Item 2.         Unregistered Sales of Equity Securities and Use of Proceeds.

Issuer Repurchases of Equity Securities

In May 2015, the Board of Directors of the Company authorized share repurchases up to a dollar value of $2 billion of the Company's common stock. The Company repurchased approximately 8.2 million shares of its common stock for $475 million during the second quarter of 2015. At June 30, 2015, the Company remains authorized to repurchase shares of its common stock up to a dollar value of approximately $1.8 billion. There is no time limit on the authorization. 

Period	(a) Total Number of Shares (or Units) Purchased	(b) Average Price Paid per Share (or Unit)		(c) Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs	(d) Maximum Number (or Approximate Dollar Value) of Shares (or Units) that May Yet Be Purchased Under the Plans or Programs
April 1-30, 2015	2,640,900	$	56.7972	2,640,900	$	897,250,916
May 1-31, 2015	2,659,434	$	58.0770	2,659,434	$	1,951,020,120
June 1-30, 2015	2,904,768	$	58.7134	2,904,768	$	1,783,931,910
Total	8,205,102	$	57.8904	8,205,102	$	1,783,931,910

42

Item 3.         Defaults Upon Senior Securities.

None.

Item 4.         Mine Safety Disclosure.

Not Applicable.

Item 5.         Other Information.

None.

Item 6.         Exhibits.

See the Exhibit Index immediately following the signature page of this report, which is incorporated herein by reference.

43

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Date:	July 31, 2015	/s/ J. Michael Bischoff
		J. Michael Bischoff
		Chief Financial Officer
Date:	July 31, 2015	/s/ Robert J. Rapport
		Robert J. Rapport
		Senior Vice President & Controller
		(Chief Accounting Officer)

44

EXHIBIT INDEX

Exhibit No.	Exhibit Name
12.1	Statement Re: Computation of Ratio of Earnings to Fixed Charges
31.1	Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer
31.2	Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer
32.1	Section 1350 Certifications
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema
101.CAL	XBRL Taxonomy Extension Calculation Linkbase
101.DEF	XBRL Taxonomy Extension Definition Linkbase
101.LAB	XBRL Taxonomy Extension Label Linkbase
101.PRE	XBRL Taxonomy Extension Presentation Linkbase

45

EX-12.1

Exhibit 12.1

Marsh & McLennan Companies, Inc. and Subsidiaries

Ratio of Earnings to Fixed Charges

(In millions, except ratios)

	Six Months Ended June 30, 2015		Years Ended December 31,
	(Unaudited)			2014		2013		2012		2011		2010
Earnings
Income before income taxes	$	1,299		$	2,057	$	1,973	$	1,696	$	1,404	$	769
Interest expense	76			165		167		181		199		233
Portion of rents representative of the interest factor	74			131		134		139		143		140
	$	1,449		$	2,353	$	2,274	$	2,016	$	1,746	$	1,142
Fixed Charges
Interest expense	$	76		$	165	$	167	$	181	$	199	$	233
Portion of rents representative of the interest factor	74			131		134		139		143		140
	$	150		$	296	$	301	$	320	$	342	$	373
Ratio of Earnings to Fixed Charges	9.7			7.9		7.6		6.3		5.1		3.1

EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Daniel S. Glaser, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Marsh & McLennan Companies, Inc. (the “registrant”);

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(s) 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 registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an 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(s) 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.

Date:	July 31, 2015	/s/ Daniel S. Glaser
		Daniel S. Glaser
		President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, J. Michael Bischoff, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Marsh & McLennan Companies, Inc. (the “registrant”);

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(s) 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 registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an 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(s) 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.

Date:	July 31, 2015	/s/ J. Michael Bischoff
		J. Michael Bischoff
		Chief Financial Officer

EX-32.1

Exhibit 32.1

Certification of Chief Executive Officer and Chief Financial Officer

The certification set forth below is being submitted in connection with the Quarterly Report on Form 10-Q for the fiscal quarter ended June 30, 2015 of Marsh & McLennan Companies, Inc. (the “Report”) for the purpose of complying with Rule 13a-14(b) or Rule 15d-14(b) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Section 1350 of Chapter 63 of Title 18 of the United States Code.

Daniel S. Glaser, the President and Chief Executive Officer, and J. Michael Bischoff, Chief Financial Officer, of Marsh & McLennan Companies, Inc. each certifies that, to the best of his knowledge:

1. the Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and

2. the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Marsh & McLennan Companies, Inc.

Date:	July 31, 2015	/s/ Daniel S. Glaser
		Daniel S. Glaser
		President and Chief Executive Officer

Date:	July 31, 2015	/s/ J. Michael Bischoff
		J. Michael Bischoff
		Chief Financial Officer

XML

Fiduciary Assets and Liabilities (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Fiduciary Assets and Liabilities [Line Items]
Net uncollected premiums and claims receivable and payable	$ 8,900		$ 7,300
Mercer Consulting Group [Member]
Fiduciary Assets and Liabilities [Line Items]
Assets in trusts or funds for management or trustee fee	136,000
Variable Interest Entity, Not Primary Beneficiary [Member] | Mercer Consulting Group [Member]
Fiduciary Assets and Liabilities [Line Items]
Assets in trusts or funds for management or trustee fee	25,000
Risk and Insurance Services Segment [Member]
Fiduciary Assets and Liabilities [Line Items]
Interest on fiduciary funds	10	$ 12
Consulting Segment [Member]
Fiduciary Assets and Liabilities [Line Items]
Interest on fiduciary funds	$ 2	$ 3

XML

Fair Value Measurements (Changes In Fair Value Of Level 3 Liabilities Representing Acquisition Related Contingent Consideration) (Details) - Contingent Consideration [Member] - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at January 1,	$ 207	$ 104
Additions	49	67
Payments	(33)	(36)
Revaluation Impact	21	9
Balance at June 30,	$ 244	$ 144

XML

Goodwill and Other Intangibles (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Goodwill	$ 7,381	$ 7,230	$ 7,241	$ 6,893
Aggregate amortization expense	48	$ 42
Risk and Insurance Services Segment [Member]
Segment Reporting Information [Line Items]
Goodwill	5,200
Consulting Segment [Member]
Segment Reporting Information [Line Items]
Goodwill	$ 2,200

XML

Retirement Benefits (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Jan. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Contributions to U.S. non qualified and non-U.S. Pension Plan					$ 88
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit credit	$ (3)	$ 125	$ (4)		122	$ (8)
Gain (loss) due to curtailments					0	0
Non-U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit credit	15		0		29	66
Effect of plan amendment on accumulated benefit obligation							$ 147
Effect of plan amendment on funded status							$ 137
Gain (loss) due to curtailments				$ 65	0	65
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit credit	$ (31)		$ (23)		(62)	20
Gain (loss) due to curtailments					0	$ 65
Expected contribution during remainder of 2013					$ 106
Equity Funds [Member] | United States Pension and Postretirement Benefit Plan of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation U.S. Plan, equities, prior period					64.00%
Actual asset allocation percentage of equity	63.00%				63.00%
Fixed Income Funds [Member] | United States Pension and Postretirement Benefit Plan of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation U.S. Plan, equities, prior period					36.00%
Actual asset allocation percentage of equity	37.00%				37.00%
United Kingdom [Member] | Equity Funds [Member] | Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation U.S. Plan, equities, prior period					48.00%
Actual asset allocation percentage of equity	48.00%				48.00%
United Kingdom [Member] | Fixed Income Funds [Member] | Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation U.S. Plan, equities, prior period					52.00%
Actual asset allocation percentage of equity	52.00%				52.00%
United Kingdom [Member] | Geographic Concentration Risk [Member] | Non-U.S. Plans [Member] | Non-U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Concentration risk percentage					83.00%

XML

Acquisitions (Allocation Of Acquisition Costs) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Cash	$ 236	$ 394
Estimated fair value of deferred/contingent consideration	95	140
Total Consideration	331	534
Allocation of purchase price:
Goodwill	7,381	$ 7,230	$ 7,241	$ 6,893
Current Fiscal Period Acquisitions [Member]
Business Acquisition [Line Items]
Cash	236
Estimated fair value of deferred/contingent consideration	95
Total Consideration	331
Allocation of purchase price:
Cash and cash equivalents	5
Accounts receivable, net	8
Property, plant, and equipment	2
Intangible assets	138
Goodwill	188
Other assets	2
Total assets acquired	343
Current liabilities	9
Other liabilities	3
Total liabilities assumed	12
Net assets acquired	$ 331

XML

Debt (Tables)

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

Schedule of Outstanding Debt

The Company’s outstanding debt is as follows:

(In millions of dollars)	June 30, 2015		December 31, 2014
Short-term:
Commercial paper	$	50	$	—
Current portion of long-term debt	61		11
	111		11
Long-term:
Senior notes – 2.30% due 2017	249		249
Senior notes – 2.55% due 2018	249		249
Senior notes – 2.35% due 2019	300		300
Senior notes – 2.35% due 2020	500		—
Senior notes – 4.80% due 2021	497		497
Senior notes – 4.05% due 2023	248		248
Senior notes – 3.50% due 2024	599		595
Senior notes – 3.50% due 2025	498		498
Senior notes – 5.875% due 2033	297		297
Mortgage – 5.70% due 2035	398		403
Term Loan Facility – due 2016	50		50
Other	1		1
	3,886		3,387
Less current portion	61		11
	$	3,825	$	3,376

Estimated Fair Value Of Significant Financial Instruments

The estimated fair value of the Company’s short-term and long-term debt is provided below. Certain estimates and judgments were required to develop the fair value amounts. The fair value amounts shown below are not necessarily indicative of the amounts that the Company would realize upon disposition, nor do they indicate the Company’s intent or need to dispose of the financial instrument.

	June 30, 2015				December 31, 2014
(In millions of dollars)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Short-term debt	$	111	$	111	$	11	$	11
Long-term debt	$	3,825	$	3,919	$	3,376	$	3,493

XML

Retirement Benefits (Schedule Of Defined Benefit Plan Weighted Average Assumption Used In Calculating Net Periodic Benefit Cost) (Details)	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Pension Benefits [Member]
Weighted average assumptions:
Expected return on plan assets	7.25%	7.53%
Discount rate	3.79%	4.74%
Rate of compensation increase	2.42%	2.64%
Postretirement Benefits [Member]
Weighted average assumptions:
Expected return on plan assets	0.00%	0.00%
Discount rate	4.08%	5.03%
Rate of compensation increase	0.00%	0.00%

XML

Principles of Consolidation and Other Matters (Policies)

6 Months Ended

Jun. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Accounting

The consolidated financial statements included herein have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission. While certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been omitted pursuant to such rules and regulations for interim filings, the Company believes that the information and disclosures presented are adequate to make such information and disclosures not misleading.

Cash and Cash Equivalents

Cash and cash equivalents primarily consist of certificates of deposit and time deposits, with original maturities of three months or less, and money market funds. The estimated fair value of the Company's cash and cash equivalents approximates their carrying value.

Income Taxes

The Company's effective tax rate in the second quarter of 2015 was 27.9% compared with 27.6% in the second quarter of 2014. The effective tax rate for the first six months of 2015 and 2014 was 28.6%. These rates reflect non-U.S. income taxed at rates below the U.S. statutory rate, including the effect of repatriation, as well as the impact of discrete tax matters such as tax legislation, changes in valuation allowances, the resolution of tax examinations and expirations of statutes of limitations.

The Company is routinely examined by tax authorities in the jurisdictions in which it has significant operations. The Company regularly considers the likelihood of assessments in each of the taxing jurisdictions resulting from examinations. When evaluating the potential imposition of penalties, the Company considers a number of relevant factors under penalty statutes, including appropriate disclosure of the tax return position, the existence of legal authority supporting the Company's position, and reliance on the opinion of professional tax advisors.

During the second quarter of 2015, the Company settled a U.S. federal tax audit with the IRS for the year 2013 and in the second quarter of 2014, settled a U.S. federal tax audit with the IRS for the year 2012.

The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in tax returns.

Fair Value Measurements

Fair Value Hierarchy

The Company has categorized its assets and liabilities that are valued at fair value on a recurring basis into a three-level fair value hierarchy as defined by the Financial Accounting Standards Board ("FASB"). The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets and liabilities (Level 1) and lowest priority to unobservable inputs (Level 3). In some cases, the inputs used to measure fair value might fall into different levels of the fair value hierarchy. In such cases, the level in the fair value hierarchy, for disclosure purposes, is determined based on the lowest level input that is significant to the fair value measurement. Assets and liabilities recorded in the consolidated balance sheets at fair value are categorized based on the inputs in the valuation techniques as follows:

Level 1. Assets and liabilities whose values are based on unadjusted quoted prices for identical assets or liabilities in an active market (examples include active exchange-traded equity securities and money market mutual funds).

Assets and liabilities utilizing Level 1 inputs include exchange-traded mutual funds and money market funds.

Level 2. Assets and liabilities whose values are based on the following:

a) Quoted prices for similar assets or liabilities in active markets;

b) Quoted prices for identical or similar assets or liabilities in non-active markets (examples include corporate and municipal bonds, which trade infrequently);

c) Pricing models whose inputs are observable for substantially the full term of the asset or liability (examples include most over-the-counter derivatives, including interest rate and currency swaps); and

d) Pricing models whose inputs are derived principally from or corroborated by observable market data through correlation or other means for substantially the full asset or liability (for example, certain mortgage loans).

The Company does not have any assets or liabilities that utilize Level 2 inputs.

Level 3. Assets and liabilities whose values are based on prices, or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. These inputs reflect management’s own assumptions about the assumptions a market participant would use in pricing the asset or liability (examples include private equity investments, certain commercial mortgage whole loans, and long-dated or complex derivatives including certain foreign exchange options and long-dated options on gas and power).

Liabilities utilizing Level 3 inputs include liabilities for contingent purchase consideration.

Valuation Techniques

Equity Securities and Mutual Funds – Level 1

Investments for which market quotations are readily available are valued at the sale price on their principal exchange, or official closing bid price for certain markets.

Contingent Consideration Liability – Level 3

Purchase consideration for some acquisitions made by the Company includes contingent consideration arrangements. Contingent consideration arrangements are primarily based on meeting EBITDA and revenue targets over periods from two to four years. The fair value of contingent consideration is estimated as the present value of future cash flows resulting from the projected revenue and earnings of the acquired entities.

XML

Goodwill and Other Intangibles (Amortized Intangible Assets) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Gross Cost	$ 1,292	$ 1,177
Accumulated Amortization	518	485
Net Carrying Amount	$ 774	$ 692

XML

Supplemental Disclosures to the Consolidated Statements of Cash Flows (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Non-cash issuance of common stock	$ 67	$ 102
Stock-based compensation expense, equity awards	33	41
Prior Fiscal Periods Acquisitions [Member]
Deferred purchase consideration from prior years' acquisitions	28	$ 9
Putnam [Member]
Reduction of net cash flow for operations by discontinued operations	$ 82

XML

Principles Of Consolidation And Other Matters (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Operating funds related to regulatory requirements or as collateral under captive insurance arrangements	$ 198,000,000		$ 198,000,000
Effective tax rate	27.90%	27.60%	28.60%	28.60%
Unrecognized tax benefits	$ 100,000,000		$ 100,000,000		$ 97,000,000
Minimum [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Reasonably possible decrease in unrecognized tax benefits, lower bound	0		0
Maximum [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Reasonably possible decrease in unrecognized tax benefits, lower bound	$ 24,000,000		$ 24,000,000

XML

Fair Value Measurements (Narrative) (Details) shares in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2015 USD ($) shares	Jun. 30, 2015 ZAR / shares	Dec. 31, 2014 USD ($)	Feb. 24, 2014 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Adjustments to acquisition related contingent consideration liability	$ 21
Increase in fair value of contingent consideration due to 5% increase in projections	23
Decrease in fair value of contingent consideration due to 5% decrease in projections	31
Carrying value of investment	$ 424		$ 388
Minimum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Revenue target period (in years)	2 years
Maximum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Revenue target period (in years)	4 years
Private Equity Funds, Foreign [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying value of investment	$ 77		$ 61
Alexander Forbes Group Holdings Limited [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying value of investment	$ 301
Investment shares owned | shares	443
Share price | ZAR / shares		ZAR 9.00
Market value of investment	$ 324
Mercer Consulting Group [Member] | Alexander Forbes Group Holdings Limited [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percentage of ownership in equity investment			34.00%
Mercer Consulting Group [Member] | Benefitfocus [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Market value of investment	$ 124
Percentage of business interest acquired				9.90%
Total Consideration				$ 75

XML

Restructuring Costs (Restructuring Activities) (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Restructuring Reserve [Roll Forward]
Liability at beginning of period	$ 92	$ 124
Amounts Accrued	5	12
Cash Paid	(12)	(43)
Other		(1)
Liability at end of period	85	92
Severance [Member]
Restructuring Reserve [Roll Forward]
Liability at beginning of period	7	11
Amounts Accrued	2	4
Cash Paid	(4)	(8)
Other		0
Liability at end of period	5	7
Future Rent Under Non-Cancelable Leases and Other Costs [Member]
Restructuring Reserve [Roll Forward]
Liability at beginning of period	85	113
Amounts Accrued	3	8
Cash Paid	(8)	(35)
Other		(1)
Liability at end of period	80	$ 85
Corporate Segment [Member]
Restructuring Reserve [Roll Forward]
Amounts Accrued	3
Risk and Insurance Services Segment [Member]
Restructuring Reserve [Roll Forward]
Amounts Accrued	$ 2

XML

Acquisitions (Pro-Forma Information) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Business Combinations [Abstract]
Revenue	$ 3,241	$ 3,352	$ 6,488	$ 6,683
Income from continuing operations	433	441	934	902
Net income attributable to the Company	$ 422	$ 432	$ 908	$ 879
Basic net income per share:
Basic net income per share - Continuing operations (in dollars per share)	$ 0.79	$ 0.79	$ 1.70	$ 1.61
Basic net income per share - Net income attributable to the Company (in dollars per share)	0.79	0.79	1.69	1.60
Diluted net income per share:
Diluted net income per share - Continuing operations (in dollars per share)	0.78	0.78	1.68	1.59
Diluted net income per share - Net income attributable to the Company (in dollars per share)	$ 0.78	$ 0.78	$ 1.67	$ 1.58

XML

Nature of Operations

6 Months Ended

Jun. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Nature of Operations

Nature of Operations

Marsh & McLennan Companies, Inc. (the "Company"), a global professional services firm, is organized based on the different services that it offers. Under this organizational structure, the Company’s two business segments are Risk and Insurance Services and Consulting.

The Risk and Insurance Services segment provides risk management activities and insurance broking, reinsurance broking and insurance program management services for businesses, public entities, insurance companies, associations, professional services organizations, and private clients. The Company conducts business in this segment through Marsh and Guy Carpenter.

The Company conducts business in its Consulting segment through two main business groups. Mercer provides consulting expertise, advice, services and solutions in the areas of health, retirement, talent and investments. Within the investments business, Mercer provides delegated investment (fiduciary management) solutions to institutional investors (such as retirement plan sponsors and trustees) and to individual investors (primarily through the inclusion of funds managed by Mercer on defined contribution and wealth management platforms). As of June 30, 2015, Mercer had assets under management of $136 billion worldwide. Oliver Wyman Group provides specialized management and economic and brand consulting services.

Acquisitions impacting the Risk and Insurance Services and Consulting segments are discussed in Note 7 to the consolidated financial statements.

XML

Common Stock (Details) - USD ($) shares in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Equity, Class of Treasury Stock [Line Items]
Payments for repurchase of common stock	$ 775,000,000	$ 350,000,000
Common Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Common stock repurchased (in shares)	13.5	7.0
Share repurchases program, authorized amount	$ 2,000,000,000
Stock repurchase program, remaining authorized repurchase amount	$ 1,800,000,000

XML

Other Comprehensive Income (Loss) (Schedule of Components of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	$ (4,090)	$ (2,708)	$ (3,847)	$ (2,621)
Other comprehensive income (loss) before reclassifications	117	68	(178)	(53)
Amounts reclassified from accumulated other comprehensive income	50	33	102	67
Other comprehensive (loss) income, net of tax	167	101	(76)	14
Balance, end of period	(3,923)	(2,607)	(3,923)	(2,607)
Unrealized Investment Gains [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	5	5	5	5
Other comprehensive income (loss) before reclassifications	0	0	0	0
Amounts reclassified from accumulated other comprehensive income	0	0	0	0
Other comprehensive (loss) income, net of tax	0	0	0	0
Balance, end of period	5	5	5	5
Pension/Postretirement Plans Gains (Losses) [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	(3,213)	(2,847)	(3,393)	(2,682)
Other comprehensive income (loss) before reclassifications	(126)	(69)	2	(268)
Amounts reclassified from accumulated other comprehensive income	50	33	102	67
Other comprehensive (loss) income, net of tax	(76)	(36)	104	(201)
Balance, end of period	(3,289)	(2,883)	(3,289)	(2,883)
Foreign Currency Translation Adjustments [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	(882)	134	(459)	56
Other comprehensive income (loss) before reclassifications	243	137	(180)	215
Amounts reclassified from accumulated other comprehensive income	0	0	0	0
Other comprehensive (loss) income, net of tax	243	137	(180)	215
Balance, end of period	$ (639)	$ 271	$ (639)	$ 271

XML

Acquisitions (Tables)

6 Months Ended

Jun. 30, 2015

Business Combinations [Abstract]

Schedule For Allocation of Acquisition Costs

The following table presents the preliminary allocation of the acquisition cost to the assets acquired and liabilities assumed during 2015 based on their fair values:

For the Six Months Ended June 30, 2015
(In millions of dollars)
Cash	$	236
Estimated fair value of deferred/contingent consideration	95
Total Consideration	$	331
Allocation of purchase price:
Cash and cash equivalents	$	5
Accounts receivable, net	8
Property, plant, and equipment	2
Intangible assets	138
Goodwill	188
Other assets	2
Total assets acquired	343
Current liabilities	9
Other liabilities	3
Total liabilities assumed	12
Net assets acquired	$	331

Pro-Forma Information

The unaudited pro-forma financial data is presented for illustrative purposes only and is not necessarily indicative of the operating results that would have been achieved if such acquisitions had occurred on the dates indicated, nor is it necessarily indicative of future consolidated results.

	Three Months Ended June 30,				Six Months Ended June 30,
(In millions, except per share figures)	2015		2014		2015		2014
Revenue	$	3,241	$	3,352	$	6,488	$	6,683
Income from continuing operations	$	433	$	441	$	934	$	902
Net income attributable to the Company	$	422	$	432	$	908	$	879
Basic net income per share:
– Continuing operations	$	0.79	$	0.79	$	1.70	$	1.61
– Net income attributable to the Company	$	0.79	$	0.79	$	1.69	$	1.60
Diluted net income per share:
– Continuing operations	$	0.78	$	0.78	$	1.68	$	1.59
– Net income attributable to the Company	$	0.78	$	0.78	$	1.67	$	1.58

XML

Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2015

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The changes in the balances of each component of Accumulated Other Comprehensive Income ("AOCI") for the three- and six-month periods ended June 30, 2015 and 2014, including amounts reclassified out of AOCI, are as follows:

(In millions of dollars)	Unrealized Investment Gains		Pension/Post-Retirement Plans Gains (Losses)			Foreign Currency Translation Adjustments			Total
Balance as of April 1, 2015	$	5	$	(3,213	)	$	(882	)	$	(4,090	)
Other comprehensive income (loss) before reclassifications	—		(126		)	243			117
Amounts reclassified from accumulated other comprehensive income	—		50			—			50
Net current period other comprehensive income (loss)	—		(76		)	243			167
Balance as of June 30, 2015	$	5	$	(3,289	)	$	(639	)	$	(3,923	)

(In millions of dollars)	Unrealized Investment Gains		Pension/Post-Retirement Plans Gains (Losses)			Foreign Currency Translation Adjustments		Total
Balance as of April 1, 2014	$	5	$	(2,847	)	$	134	$	(2,708	)
Other comprehensive income (loss) before reclassifications	—		(69		)	137		68
Amounts reclassified from accumulated other comprehensive income	—		33			—		33
Net current period other comprehensive income (loss)	—		(36		)	137		101
Balance as of June 30, 2014	$	5	$	(2,883	)	$	271	$	(2,607	)

(In millions of dollars)	Unrealized Investment Gains		Pension/Post-Retirement Plans Gains (Losses)			Foreign Currency Translation Adjustments			Total
Balance as of January 1, 2015	$	5	$	(3,393	)	$	(459	)	$	(3,847	)
Other comprehensive income (loss) before reclassifications	—		2			(180		)	(178		)
Amounts reclassified from accumulated other comprehensive income	—		102			—			102
Net current period other comprehensive income (loss)	—		104			(180		)	(76		)
Balance as of June 30, 2015	$	5	$	(3,289	)	$	(639	)	$	(3,923	)

(In millions of dollars)	Unrealized Investment Gains		Pension/Post-Retirement Plans Gains (Losses)			Foreign Currency Translation Adjustments		Total
Balance as of January 1, 2014	$	5	$	(2,682	)	$	56	$	(2,621	)
Other comprehensive income (loss) before reclassifications	—		(268		)	215		(53		)
Amounts reclassified from accumulated other comprehensive income	—		67			—		67
Net current period other comprehensive income (loss)	—		(201		)	215		14
Balance as of June 30, 2014	$	5	$	(2,883	)	$	271	$	(2,607	)

Schedule of Components of Comprehensive Income (Loss)

The components of other comprehensive income (loss) for the three- and six-month periods ended June 30, 2015 and 2014 are as follows:

Three Months Ended June 30,	2015									2014
(In millions of dollars)	Pre-Tax			Tax			Net of Tax			Pre-Tax			Tax			Net of Tax
Foreign currency translation adjustments	$	246		$	3		$	243		$	136		$	(1	)	$	137
Pension/post-retirement plans:
Amortization of losses (gains) included in net periodic pension cost:
Prior service gains (a)	—			—			—			(2		)	(1		)	(1		)
Net actuarial losses (a)	76			26			50			49			15			34
Subtotal	76			26			50			47			14			33
Effect of remeasurement	1			—			1			—			—			—
Effect of settlement	1			—			1			—			—			—
Foreign currency translation adjustments	(161		)	(33		)	(128		)	(91		)	(20		)	(71		)
Other	—			—			—			2			—			2
Pension/post-retirement plans (losses) gains	(83		)	(7		)	(76		)	(42		)	(6		)	(36		)
Other comprehensive income (loss)	$	163		$	(4	)	$	167		$	94		$	(7	)	$	101
(a) Components of net periodic pension cost are included in compensation and benefits in the Consolidated Statements of Income. Tax on prior service gains and net actuarial losses is included in income tax expense.

Six Months Ended June 30,	2015									2014
(In millions of dollars)	Pre-Tax			Tax			Net of Tax			Pre-Tax			Tax			Net of Tax
Foreign currency translation adjustments	$	(180	)	$	—		$	(180	)	$	207		$	(8	)	$	215
Pension/post-retirement plans:
Amortization of losses (gains) included in net periodic pension cost:
Prior service gains (a)	—			—			—			(5		)	(2		)	(3		)
Net actuarial losses (a)	153			51			102			100			30			70
Subtotal	153			51			102			95			28			67
Effect of remeasurement	(3		)	(1		)	(2		)	(166		)	(33		)	(133		)
Effect of curtailment	—			—			—			(65		)	(13		)	(52		)
Effect of settlement	1			—			1			—			—			—
Plan Termination	(6		)	(2		)	(4		)	—			—			—
Foreign currency translation adjustments	8			1			7			(108		)	(22		)	(86		)
Other	—			—			—			3			—			3
Pension/post-retirement plans (losses) gains	153			49			104			(241		)	(40		)	(201		)
Other comprehensive (loss) income	$	(27	)	$	49		$	(76	)	$	(34	)	$	(48	)	$	14
(a) Components of net periodic pension cost are included in compensation and benefits in the Consolidated Statements of Income. Tax on prior service gains and net actuarial losses is included in income tax expense.

XML

Retirement Benefits (Schedule Of Defined Benefit Plan Net Periodic Benefit Cost) (Details) - USD ($)	3 Months Ended				6 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 50,000,000		$ 62,000,000		$ 102,000,000	$ 123,000,000
Interest cost	146,000,000		161,000,000		292,000,000	322,000,000
Expected return on plan assets	(243,000,000)		(250,000,000)		(486,000,000)	(498,000,000)
Amortization of prior service credit	0		(3,000,000)		0	(6,000,000)
Recognized actuarial loss (gain)	78,000,000		53,000,000		154,000,000	104,000,000
Net periodic benefit cost					62,000,000	45,000,000
Curtailment credit					0	(65,000,000)
Plan termination					0	0
Total cost (credit)	31,000,000		23,000,000		62,000,000	(20,000,000)
U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	29,000,000		23,000,000		59,000,000	45,000,000
Interest cost	63,000,000		62,000,000		125,000,000	125,000,000
Expected return on plan assets	(92,000,000)		(87,000,000)		(184,000,000)	(173,000,000)
Amortization of prior service credit	0		(2,000,000)		0	(4,000,000)
Recognized actuarial loss (gain)	46,000,000		27,000,000		91,000,000	53,000,000
Net periodic benefit cost	46,000,000		23,000,000		91,000,000	46,000,000
Plan termination	0		0		0	0
Total cost (credit)	46,000,000		23,000,000		91,000,000	46,000,000
Non-U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	21,000,000		39,000,000		43,000,000	78,000,000
Interest cost	83,000,000		99,000,000		167,000,000	197,000,000
Expected return on plan assets	(151,000,000)		(163,000,000)		(302,000,000)	(325,000,000)
Amortization of prior service credit	0		(1,000,000)		0	(2,000,000)
Recognized actuarial loss (gain)	32,000,000		26,000,000		63,000,000	51,000,000
Net periodic benefit cost					(29,000,000)	(1,000,000)
Curtailment credit				$ (65,000,000)	0	(65,000,000)
Total cost (credit)	(15,000,000)		0		(29,000,000)	(66,000,000)
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,000,000		1,000,000		2,000,000	2,000,000
Interest cost	2,000,000		3,000,000		4,000,000	6,000,000
Expected return on plan assets	0		0		0	0
Amortization of prior service credit	1,000,000		0		1,000,000	0
Recognized actuarial loss (gain)	(1,000,000)		0		(1,000,000)	0
Net periodic benefit cost					6,000,000	8,000,000
Curtailment credit					0	0
Plan termination					(128,000,000)	0
Total cost (credit)	3,000,000	$ (125,000,000)	4,000,000		(122,000,000)	8,000,000
U.S. Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0		1,000,000		1,000,000	1,000,000
Interest cost	1,000,000		2,000,000		2,000,000	4,000,000
Expected return on plan assets	0		0		0	0
Amortization of prior service credit	1,000,000		0		1,000,000	0
Recognized actuarial loss (gain)	(1,000,000)		(1,000,000)		(1,000,000)	(1,000,000)
Net periodic benefit cost	1,000,000		2,000,000		3,000,000	4,000,000
Plan termination	0		0		(128,000,000)	0
Total cost (credit)	1,000,000		2,000,000		(125,000,000)	4,000,000
Foreign Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,000,000		0		1,000,000	1,000,000
Interest cost	1,000,000		1,000,000		2,000,000	2,000,000
Expected return on plan assets	0		0		0	0
Amortization of prior service credit	0		0		0	0
Recognized actuarial loss (gain)	0		1,000,000		0	1,000,000
Net periodic benefit cost					3,000,000	4,000,000
Curtailment credit					0	0
Total cost (credit)	$ 2,000,000		$ 2,000,000		$ 3,000,000	$ 4,000,000

XML

Other Comprehensive Income (Loss) (Schedule Of Components Of Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Equity [Abstract]
Foreign currency translation adjustments, Pre-Tax	$ 246	$ 136	$ (180)	$ 207
Foreign currency translation adjustments, Tax	3	(1)	0	(8)
Foreign currency translation adjustments, Net of Tax	243	137	(180)	215
Pension/post-retirement plans:
Prior Service gains, Pre-Tax	0	(2)	0	(5)
Prior Service gains, Tax	0	(1)	0	(2)
Prior Service gains, Net of Tax	0	(1)	0	(3)
Net actuarial loss, Pre-Tax	76	49	153	100
Net actuarial loss, Tax	26	15	51	30
Net actuarial loss, Net of Tax	50	34	102	70
Subtotal, Pre-Tax	76	47	153	95
Subtotal, Tax	26	14	51	28
Subtotal, Net of Tax	50	33	102	67
Effect of remeasurement, Pre-tax	1	0	(3)	(166)
Effect of remeasurement, Tax	0	0	(1)	(33)
Effect of remeasurement, Net of Tax	1	0	(2)	(133)
Effect of curtailment, Pre-Tax			0	(65)
Effect of curtailment, Tax			0	(13)
Effect of curtailment, Net of Tax			0	(52)
Effect of settlement, Pre-tax	1	0	1	0
Effect of settlement, Tax	0	0	0	0
Effect of settlement, Net of Tax	1	0	1	0
Plan Termination, Pre-Tax			(6)	0
Plan Termination, Tax			(2)	0
Plan Termination, Net of Tax			(4)	0
Foreign currency translation adjustment, Pre-Tax	(161)	(91)	8	(108)
Foreign currency translation adjustment, Tax	(33)	(20)	1	(22)
Foreign currency translation adjustment, Net of Tax	(128)	(71)	7	(86)
Other, Pre-Tax	0	2	0	3
Other, Tax	0	0	0	0
Other, Net of Tax	0	2	0	3
Pension/post-retirement plans losses (gains), Pre-Tax	(83)	(42)	153	(241)
Pension/post-retirement plans losses (gains), Tax	(7)	(6)	49	(40)
Pension/post-retirement plans losses (gains), Net of Tax	(76)	(36)	104	(201)
Other comprehensive (loss) income, before tax	163	94	(27)	(34)
Other comprehensive income (loss), Tax	(4)	(7)	49	(48)
Other comprehensive (loss) income, net of tax	$ 167	$ 101	$ (76)	$ 14

XML

Goodwill and Other Intangibles (Tables)

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the Carrying Amount of Goodwill

Changes in the carrying amount of goodwill are as follows:

June 30,
(In millions of dollars)	2015			2014
Balance as of January 1, as reported	$	7,241		$	6,893
Goodwill acquired	188			334
Other adjustments(a)	(48		)	3
Balance at June 30,	$	7,381		$	7,230

^(a)  Primarily reflects the impact of foreign exchange in each period.

Amortized Intangible Assets

Amortized intangible assets consist of the cost of client lists, client relationships and trade names acquired. The gross cost and accumulated amortization are as follows:

	June 30, 2015						December 31, 2014
(In millions of dollars)	Gross Cost		Accumulated Amortization		Net Carrying Amount		Gross Cost		Accumulated Amortization		Net Carrying Amount
Amortized intangibles	$	1,292	$	518	$	774	$	1,177	$	485	$	692

Estimated Future Aggregate Amortization Expense

The estimated future aggregate amortization expense is as follows:

For the Years Ending December 31,
(In millions of dollars)	Estimated Expense
2015 (excludes amortization through June 30, 2015)	$	55
2016	98
2017	94
2018	88
2019	83
Subsequent years	356
	$	774

XML

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following fair value hierarchy table presents information about the Company’s assets and liabilities measured at fair value on a recurring basis as of June 30, 2015 and December 31, 2014.

	Identical Assets (Level 1)				Observable Inputs (Level 2)				Unobservable Inputs (Level 3)				Total
(In millions of dollars)	06/30/15		12/31/14		06/30/15		12/31/14		06/30/15		12/31/14		06/30/15		12/31/14
Assets:
Financial instruments owned:
Mutual funds(a)	$	142	$	150	$	—	$	—	$	—	$	—	$	142	$	150
Money market funds(b)	40		107		—		—		—		—		40		107
Total assets measured at fair value	$	182	$	257	$	—	$	—	$	—	$	—	$	182	$	257
Fiduciary Assets:
Money market funds	$	66	$	57	$	—	$	—	$	—	$	—	$	66	$	57
Total fiduciary assets measured at fair value	$	66	$	57	$	—	$	—	$	—	$	—	$	66	$	57
Liabilities:
Contingent purchase consideration liability(c)	$	—	$	—	$	—	$	—	$	244	$	207	$	244	$	207
Total liabilities measured at fair value	$	—	$	—	$	—	$	—	$	244	$	207	$	244	$	207

^(a)  Included in other assets in the consolidated balance sheets.

^(b)  Included in cash and cash equivalents in the consolidated balance sheets.

^(c)  Included in accounts payable and accrued liabilities and other liabilities in the consolidated balance sheets.

Changes in Fair Value of Level 3 Liabilities Representing Acquisition Related Contingent Consideration

The table below sets forth a summary of the changes in fair value of the Company’s Level 3 liabilities as of June 30, 2015 and 2014 that represent contingent consideration related to acquisitions:

(In millions of dollars)	2015			2014
Balance at January 1,	$	207		$	104
Additions	49			67
Payments	(33		)	(36		)
Revaluation Impact	21			9
Balance at June 30,	$	244		$	144

XML

Consolidated Statements of Equity (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Statement of Stockholders' Equity [Abstract]
Dividends declared per share (in dollars per share)	$ 0.87	$ 0.78
Dividend equivalents declared per share (in dollars per share)	$ 0.87	$ 0.78

XML

Retirement Benefits (Tables)

6 Months Ended

Jun. 30, 2015

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Schedule of Net Benefit Costs

The components of the net periodic benefit cost for defined benefit and other post-retirement plans are as follows:

Combined U.S. and significant non-U.S. Plans	Pension						Post-retirement
For the Three Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	50		$	62		$	1		$	1
Interest cost	146			161			2			3
Expected return on plan assets	(243		)	(250		)	—			—
Amortization of prior service credit	—			(3		)	1			—
Recognized actuarial loss (gain)	78			53			(1		)	—
Net periodic benefit cost	$	31		$	23		$	3		$	4
Combined U.S. and significant non-U.S. Plans	Pension						Post-retirement
For the Six Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	102		$	123		$	2		$	2
Interest cost	292			322			4			6
Expected return on plan assets	(486		)	(498		)	—			—
Amortization of prior service credit	—			(6		)	1			—
Recognized actuarial loss (gain)	154			104			(1		)	—
Net periodic benefit cost	$	62		$	45		$	6		$	8
Curtailment credit	—			(65		)	—			—
Plan termination	—			—			(128		)	—
Total cost (credit)	$	62		$	(20	)	$	(122	)	$	8
U.S. Plans only	Pension						Post-retirement
For the Three Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	29		$	23		$	—		$	1
Interest cost	63			62			1			2
Expected return on plan assets	(92		)	(87		)	—			—
Amortization of prior service credit	—			(2		)	1			—
Recognized actuarial loss (gain)	46			27			(1		)	(1		)
Net periodic benefit cost	$	46		$	23		$	1		$	2
Plan termination	—			—			—			—
Total cost	$	46		$	23		$	1		$	2

U.S. Plans only	Pension						Post-retirement
For the Six Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	59		$	45		$	1		$	1
Interest cost	125			125			2			4
Expected return on plan assets	(184		)	(173		)	—			—
Amortization of prior service credit	—			(4		)	1			—
Recognized actuarial loss (gain)	91			53			(1		)	(1		)
Net periodic benefit cost	$	91		$	46		$	3		$	4
Plan termination	—			—			(128		)	—
Total cost (credit)	$	91		$	46		$	(125	)	$	4

In March 2015, the Company amended its U.S. Post-65 retiree medical reimbursement plan (the "RRA plan"), resulting in its termination, with benefits to certain participants paid through December 31, 2016. As a result of the termination of the RRA plan, the Company recognized a net credit of approximately $125 million in the first quarter of 2015.

Significant non-U.S. Plans only	Pension						Post-retirement
For the Three Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015		2014
Service cost	$	21		$	39		$	1	$	—
Interest cost	83			99			1		1
Expected return on plan assets	(151		)	(163		)	—		—
Amortization of prior service credit	—			(1		)	—		—
Recognized actuarial loss	32			26			—		1
Net periodic benefit (credit) cost	$	(15	)	$	—		$	2	$	2

Significant non-U.S. Plans only	Pension						Post-retirement
For the Six Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015		2014
Service cost	$	43		$	78		$	1	$	1
Interest cost	167			197			2		2
Expected return on plan assets	(302		)	(325		)	—		—
Amortization of prior service cost	—			(2		)	—		—
Recognized actuarial loss	63			51			—		1
Net periodic benefit (credit) cost	$	(29	)	$	(1	)	$	3	$	4
Curtailment (credit)	—			(65		)	—		—
Total (credit) cost	$	(29	)	$	(66	)	$	3	$	4

Schedule of Assumptions Used

The weighted average actuarial assumptions utilized to calculate the net periodic benefit costs for the U.S. and significant non-U.S. defined benefit plans are as follows:

Combined U.S. and significant non-U.S. Plans	Pension Benefits				Post-retirement Benefits
June 30,	2015		2014		2015		2014
Weighted average assumptions:
Expected return on plan assets	7.25	%	7.53	%	—	%	—	%
Discount rate	3.79	%	4.74	%	4.08	%	5.03	%
Rate of compensation increase	2.42	%	2.64	%	—	%	—	%

XML

Per Share Data (Basic and Diluted EPS Calculation Continuing Operations) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Net income from continuing operations	$ 429	$ 440	$ 927	$ 897
Less: Net income attributable to non-controlling interests	10	7	23	20
Net income attributable to the Company	$ 419	$ 433	$ 904	$ 877
Basic weighted average common shares outstanding (in shares)	535.0	549.0	537.0	548.0
Dilutive effect of potentially issuable common shares (in shares)	6.0	7.0	6.0	8.0
Diluted weighted average common shares outstanding (in shares)	541.0	556.0	543.0	556.0
Average stock price used to calculate common stock equivalents (in dollars per share)	$ 57.75	$ 49.67	$ 57.06	$ 48.75
Stock options outstanding (in shares)	16.2	20.6	16.2	20.6

XML

Fair Value Measurements (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014
Financial instruments owned:
Total assets measured at fair value		$ 182	$ 257
Fiduciary Assets:
Fiduciary assets		66	57
Liabilities:
Total liabilities measured at fair value		244	207
Identical Assets (Level 1) [Member]
Financial instruments owned:
Total assets measured at fair value		182	257
Fiduciary Assets:
Fiduciary assets		66	57
Liabilities:
Total liabilities measured at fair value		0	0
Observable Inputs (Level 2) [Member]
Financial instruments owned:
Total assets measured at fair value		0	0
Fiduciary Assets:
Fiduciary assets		0	0
Liabilities:
Total liabilities measured at fair value		0	0
Unobservable Inputs (Level 3) [Member]
Financial instruments owned:
Total assets measured at fair value		0	0
Fiduciary Assets:
Fiduciary assets		0	0
Liabilities:
Total liabilities measured at fair value		244	207
Money Market Funds [Member]
Fiduciary Assets:
Fiduciary assets		66	57
Money Market Funds [Member] | Identical Assets (Level 1) [Member]
Fiduciary Assets:
Fiduciary assets		66	57
Money Market Funds [Member] | Observable Inputs (Level 2) [Member]
Fiduciary Assets:
Fiduciary assets		0	0
Money Market Funds [Member] | Unobservable Inputs (Level 3) [Member]
Fiduciary Assets:
Fiduciary assets		0	0
Other Assets [Member]
Financial instruments owned:
Mutual funds	[1]	142	150
Other Assets [Member] | Identical Assets (Level 1) [Member]
Financial instruments owned:
Mutual funds	[1]	142	150
Other Assets [Member] | Observable Inputs (Level 2) [Member]
Financial instruments owned:
Mutual funds	[1]	0	0
Other Assets [Member] | Unobservable Inputs (Level 3) [Member]
Financial instruments owned:
Mutual funds	[1]	0	0
Cash and Cash Equivalents [Member]
Financial instruments owned:
Money market funds	[2]	40	107
Cash and Cash Equivalents [Member] | Identical Assets (Level 1) [Member]
Financial instruments owned:
Money market funds	[2]	40	107
Cash and Cash Equivalents [Member] | Observable Inputs (Level 2) [Member]
Financial instruments owned:
Money market funds	[2]	0	0
Cash and Cash Equivalents [Member] | Unobservable Inputs (Level 3) [Member]
Financial instruments owned:
Money market funds	[2]	0	0
Accounts Payable and Accrued Liabilities and Other Liabilities [Member]
Liabilities:
Contingent purchase consideration liability	[3]	244	207
Accounts Payable and Accrued Liabilities and Other Liabilities [Member] | Identical Assets (Level 1) [Member]
Liabilities:
Contingent purchase consideration liability	[3]	0	0
Accounts Payable and Accrued Liabilities and Other Liabilities [Member] | Observable Inputs (Level 2) [Member]
Liabilities:
Contingent purchase consideration liability	[3]	0	0
Accounts Payable and Accrued Liabilities and Other Liabilities [Member] | Unobservable Inputs (Level 3) [Member]
Liabilities:
Contingent purchase consideration liability	[3]	$ 244	$ 207

[1] Included in other assets in the consolidated balance sheets.

[2] Included in cash and cash equivalents in the consolidated balance sheets.

[3] Included in accounts payable and accrued liabilities and other liabilities in the consolidated balance sheets.

XML

Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Revenue	$ 3,225	$ 3,300	$ 6,440	$ 6,564
Expense:
Compensation and benefits	1,826	1,876	3,556	3,715
Other operating expenses	770	777	1,520	1,529
Operating expenses	2,596	2,653	5,076	5,244
Operating income	629	647	1,364	1,320
Interest income	3	5	6	10
Interest expense	(40)	(42)	(76)	(84)
Investment income (loss)	3	(2)	5	11
Income before income taxes	595	608	1,299	1,257
Income tax expense	166	168	372	360
Income from continuing operations	429	440	927	897
Discontinued operations, net of tax	0	(2)	(3)	(3)
Net income before non-controlling interests	429	438	924	894
Less: Net income attributable to non-controlling interests	10	7	23	20
Net income attributable to the Company	$ 419	$ 431	$ 901	$ 874
Basic net income per share
Basic net income per share - Continuing operations (usd per share)	$ 0.78	$ 0.79	$ 1.68	$ 1.60
Basic net income per share - Net income attributable to the Company (usd per share)	0.78	0.78	1.68	1.59
Diluted net income per share
Diluted net income per share - Continuing operations (usd per share)	0.77	0.78	1.66	1.58
Diluted net income per share - Net income attributable to the Company (usd per share)	$ 0.77	$ 0.77	$ 1.66	$ 1.57
Average number of shares outstanding
Average number of shares outstanding - Basic	535	549	537	548
Average number of shares outstanding - Diluted	541	556	543	556
Shares outstanding at June 30	531	546	531	546

XML

Acquisitions (Narrative) (Details) $ in Millions	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2015 USD ($) acquisition	Jun. 30, 2014 USD ($)	Dec. 31, 2014 acquisition
Business Acquisition [Line Items]
Number of acquisitions made (in acquisitions) | acquisition		8
Total Consideration		$ 331	$ 534
Cash		236	394
Estimated fair value of deferred/contingent consideration		95	140
Purchases of other intangible assets		3
Current Fiscal Period Acquisitions [Member]
Business Acquisition [Line Items]
Total Consideration		331
Cash		236
Estimated fair value of deferred/contingent consideration		95
Revenue related to acquisitions	$ 15	18
Operating income related to acquisitions	$ 0	1
Prior Fiscal Periods Acquisitions [Member]
Business Acquisition [Line Items]
Deferred purchase consideration from prior years' acquisitions		28	9
Contingent consideration from prior year's acquisitions		$ 33	$ 36
Risk and Insurance Services Segment [Member]
Business Acquisition [Line Items]
Number of acquisitions made (in acquisitions) | acquisition				15
Consulting Segment [Member]
Business Acquisition [Line Items]
Number of acquisitions made (in acquisitions) | acquisition				6
Minimum [Member]
Business Acquisition [Line Items]
Revenue target period (in years)		2 years
Minimum [Member] | Current Fiscal Period Acquisitions [Member]
Business Acquisition [Line Items]
Revenue target period (in years)			2 years
Maximum [Member]
Business Acquisition [Line Items]
Revenue target period (in years)		4 years
Maximum [Member] | Current Fiscal Period Acquisitions [Member]
Business Acquisition [Line Items]
Revenue target period (in years)			4 years

XML

Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating cash flows:
Net income before non-controlling interests	$ 924	$ 894
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization of fixed assets and capitalized software	156	149
Amortization of intangible assets	48	42
Adjustments and payments related to contingent consideration liability	0	(3)
Provision for deferred income taxes	90	83
Gain on investments	(2)	(10)
Loss on disposition of assets	1	2
Share-based compensation expense	46	51
Changes in assets and liabilities:
Net receivables	(274)	(392)
Other current assets	39	(16)
Other assets	(62)	15
Accounts payable and accrued liabilities	(75)	(7)
Accrued compensation and employee benefits	(659)	(480)
Accrued income taxes	31	61
Contributions to pension and other benefit plans in excess of current year expense/credit	(149)	(118)
Other liabilities	(57)	(39)
Effect of exchange rate changes	49	26
Net cash provided by operations	106	258
Financing cash flows:
Purchase of treasury shares	(775)	(350)
Net increase in commercial paper	50	0
Proceeds from debt	500	595
Repayments of debt	(5)	(5)
Shares withheld for taxes on vested units – treasury shares	(48)	(55)
Issuance of common stock from treasury shares	147	136
Payments of deferred and contingent consideration for acquisitions	(40)	(24)
Distributions of non-controlling interests	(15)	(13)
Dividends paid	(302)	(275)
Net cash (used for) provided by financing activities	(488)	9
Investing cash flows:
Capital expenditures	(176)	(202)
Net (purchases) sales of long-term investments	(90)	2
Proceeds from sales of fixed assets	1	1
Acquisitions	(260)	(383)
Other, net	(3)	1
Net cash used for investing activities	(528)	(581)
Effect of exchange rate changes on cash and cash equivalents	(118)	16
Decrease in cash and cash equivalents	(1,028)	(298)
Cash and cash equivalents at beginning of period	1,958	2,303
Cash and cash equivalents at end of period	$ 930	$ 2,005

XML

Debt (Schedule Of Outstanding Debt) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	May. 31, 2014
Debt Instrument [Line Items]
Current portion of long-term debt	$ 61		$ 11
Short-term debt	111		11
Long-term debt, current and noncurrent	3,886		3,387
Long-term debt	3,825		3,376
Senior Debt Obligations Due 2017 [Member]
Debt Instrument [Line Items]
Long-term debt, current and noncurrent	$ 249		249
Interest rate	2.30%
Senior Debt Obligations Due 2018 [Member]
Debt Instrument [Line Items]
Long-term debt, current and noncurrent	$ 249		249
Interest rate	2.55%
2.35% Senior Debt Obligations Due 2019 [Member]
Debt Instrument [Line Items]
Long-term debt, current and noncurrent	$ 300		300
Interest rate	2.35%			2.35%
Senior Debt Obligations Due 2020 [Member]
Debt Instrument [Line Items]
Long-term debt, current and noncurrent	$ 500		0
Interest rate	2.35%	2.35%
Senior Debt Obligations Due 2021 [Member]
Debt Instrument [Line Items]
Long-term debt, current and noncurrent	$ 497		497
Interest rate	4.80%
Senior Debt Obligations Due 2023 [Member]
Debt Instrument [Line Items]
Long-term debt, current and noncurrent	$ 248		248
Interest rate	4.05%
Senior Debt Obligations Due 2024 [Member]
Debt Instrument [Line Items]
Long-term debt, current and noncurrent	$ 599		595
Interest rate	3.50%				3.50%
3.50% Senior Debt Obligations Due 2025 [Member]
Debt Instrument [Line Items]
Long-term debt, current and noncurrent	$ 498		498
Interest rate	3.50%			3.50%
Senior Debt Obligations Due 2033 [Member]
Debt Instrument [Line Items]
Long-term debt, current and noncurrent	$ 297		297
Interest rate	5.875%
Mortgage Due 2035 [Member]
Debt Instrument [Line Items]
Long-term debt, current and noncurrent	$ 398		403
Interest rate	5.70%
Term Loan Facility - due 2016
Debt Instrument [Line Items]
Long-term debt, current and noncurrent	$ 50		50
Other [Member]
Debt Instrument [Line Items]
Long-term debt, current and noncurrent	1		1
Commercial Paper [Member]
Debt Instrument [Line Items]
Commercial paper	$ 50		$ 0

XML

Segment Information (Tables)

6 Months Ended

Jun. 30, 2015

Segment Reporting [Abstract]

Selected Information And Details For MMC's Operating Segments

Selected information about the Company’s operating segments for the three- and six-month periods ended June 30, 2015 and 2014 are as follows:

	Three Months Ended June 30,							Six Months Ended June 30,
(In millions of dollars)	Revenue				Operating Income (Loss)			Revenue				Operating Income (Loss)
2015–
Risk and Insurance Services	$	1,750		(a)	$	427		$	3,553		(c)	$	960
Consulting	1,487			(b)	248			2,908			(d)	496
Total Operating Segments	3,237				675			6,461				1,456
Corporate / Eliminations	(12		)		(46		)	(21		)		(92		)
Total Consolidated	$	3,225			$	629		$	6,440			$	1,364
2014–
Risk and Insurance Services	$	1,791		(a)	$	448		$	3,630		(c)	$	941
Consulting	1,520			(b)	247			2,952			(d)	472
Total Operating Segments	3,311				695			6,582				1,413
Corporate / Eliminations	(11		)		(48		)	(18		)		(93		)
Total Consolidated	$	3,300			$	647		$	6,564			$	1,320

^(a)  Includes inter-segment revenue of $4 million and $3 million in 2015and 2014, respectively, interest income on fiduciary funds of $5 million and $6 million in 2015 and 2014, respectively, and equity method income of $0 million and $6 million in 2015 and 2014, respectively.

^(b)  Includes inter-segment revenue of $8 million in both 2015 and 2014, interest income on fiduciary funds of $1 millionin 2015 and$2 million in 2014, and equity method income of $5 million in 2015 and $0 million in 2014.

^(c)  Includes inter-segment revenue of $5 million and $3 million in 2015 and 2014, respectively, interest income on fiduciary funds of $10 million and $12 million in 2015 and 2014, respectively, and equity method income of $2 million in 2015 and $6 million in 2014.

^(d)  Includes inter-segment revenue of $16 million and $15 million in 2015 and 2014, respectively, interest income on fiduciary funds of $2 million and $3 million in 2015 and 2014, respectively, and equity method income of $8 million in 2015 and $0 million in 2014.

Details of Operating Segment Revenue

Details of operating segment revenue for the three- and six-month periods ended June 30, 2015 and 2014 are as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
(In millions of dollars)	2015			2014			2015			2014
Risk and Insurance Services
Marsh	$	1,474		$	1,495		$	2,908		$	2,952
Guy Carpenter	276			296			645			678
Total Risk and Insurance Services	1,750			1,791			3,553			3,630
Consulting
Mercer	1,046			1,071			2,083			2,132
Oliver Wyman Group	441			449			825			820
Total Consulting	1,487			1,520			2,908			2,952
Total Operating Segments	3,237			3,311			6,461			6,582
Corporate / Eliminations	(12		)	(11		)	(21		)	(18		)
Total	$	3,225		$	3,300		$	6,440		$	6,564

XML

Segment Information (Details of Operating Segment Revenue) (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2015		Jun. 30, 2014
Segment Reporting Information [Line Items]
Revenue	$ 3,225		$ 3,300		$ 6,440		$ 6,564
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	3,237		3,311		6,461		6,582
Operating Segments [Member] | Marsh Insurance Group [Member]
Segment Reporting Information [Line Items]
Revenue	1,474		1,495		2,908		2,952
Operating Segments [Member] | Guy Carpenter Reinsurance Group [Member]
Segment Reporting Information [Line Items]
Revenue	276		296		645		678
Operating Segments [Member] | Mercer Consulting Group [Member]
Segment Reporting Information [Line Items]
Revenue	1,046		1,071		2,083		2,132
Operating Segments [Member] | Oliver Wyman Group Consulting Group [Member]
Segment Reporting Information [Line Items]
Revenue	441		449		825		820
Operating Segments [Member] | Risk and Insurance Services Segment [Member]
Segment Reporting Information [Line Items]
Revenue	1,750	[1]	1,791	[1]	3,553	[2]	3,630	[2]
Operating Segments [Member] | Consulting Segment [Member]
Segment Reporting Information [Line Items]
Revenue	1,487	[3]	1,520	[3]	2,908	[4]	2,952	[4]
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	(12)		(11)		(21)		(18)
Intersegment Eliminations [Member] | Risk and Insurance Services Segment [Member]
Segment Reporting Information [Line Items]
Revenue	4		3		5		3
Intersegment Eliminations [Member] | Consulting Segment [Member]
Segment Reporting Information [Line Items]
Revenue	$ 8		$ 8		$ 16		$ 15

[1] Includes inter-segment revenue of $4 million and $3 million in 2015 and 2014, respectively, interest income on fiduciary funds of $5 million and $6 million in 2015 and 2014, respectively, and equity method income of $0 million and $6 million in 2015 and 2014, respectively.

[2] Includes inter-segment revenue of $5 million and $3 million in 2015 and 2014, respectively, interest income on fiduciary funds of $10 million and $12 million in 2015 and 2014, respectively, and equity method income of $2 million in 2015 and $6 million in 2014.

[3] Includes inter-segment revenue of $8 million in both 2015 and 2014, interest income on fiduciary funds of $1 million in 2015 and $2 million in 2014, and equity method income of $5 million in 2015 and $0 million in 2014.

[4] Includes inter-segment revenue of $16 million and $15 million in 2015 and 2014, respectively, interest income on fiduciary funds of $2 million and $3 million in 2015 and 2014, respectively, and equity method income of $8 million in 2015 and $0 million in 2014.

XML

Claims, Lawsuits And Other Contingencies

6 Months Ended

Jun. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Claims, Lawsuits, and Other Contingencies

Claims, Lawsuits and Other Contingencies

Litigation Matters

The Company and its subsidiaries are subject to a significant number of claims, lawsuits and proceedings in the ordinary course of business. Such claims and lawsuits consist principally of alleged errors and omissions in connection with the performance of professional services, including the placement of insurance, the provision of actuarial services for corporate and public sector clients, the provision of investment advice and investment management services to pension plans, the provision of advice relating to pension buy-out transactions and the provision of consulting services relating to the drafting and interpretation of trust deeds and other documentation governing pension plans. These claims may seek damages, including punitive and treble damages, in amounts that could, if awarded, be significant. In establishing liabilities for errors and omissions claims in accordance with FASB ASC Subtopic No. 450-20 (Contingencies-Loss Contingencies), the Company uses case level reviews by inside and outside counsel, an internal actuarial analysis and other analysis to estimate potential losses. A liability is established when a loss is both probable and reasonably estimable. The liability is reviewed quarterly and adjusted as developments warrant. In many cases, the Company has not recorded a liability, other than for legal fees to defend the claim, because we are unable, at the present time, to make a determination that a loss is both probable and reasonably estimable.

To the extent that expected losses exceed our deductible in any policy year, the Company also records an asset for the amount that we expect to recover under any available third-party insurance programs. The Company has varying levels of third-party insurance coverage, with policy limits and coverage terms varying significantly by policy year.

Governmental Inquiries and Enforcement Matters

Our activities are regulated under the laws of the United States and its various states, the European Union and its member states, and the other jurisdictions in which the Company operates. In the ordinary course of business, the Company is also subject to subpoenas, investigations, lawsuits and other regulatory actions undertaken by governmental authorities.

Other Contingencies-Guarantees

In connection with its acquisition of U.K.-based Sedgwick Group in 1998, the Company acquired several insurance underwriting businesses that were already in run-off, including River Thames Insurance Company Limited ("River Thames"), which the Company sold in 2001. Sedgwick guaranteed payment of claims on certain policies underwritten through the Institute of London Underwriters (the "ILU") by River Thames. The policies covered by this guarantee are reinsured up to £40 million by a related party of River Thames. Payment of claims under the reinsurance agreement is collateralized by segregated assets held in a trust. As of June 30, 2015, the reinsurance coverage exceeded the best estimate of the projected liability of the policies covered by the guarantee. To the extent River Thames or the reinsurer is unable to meet its obligations under those policies, a claimant may seek to recover from the Company under the guarantee.

From 1980 to 1983, the Company owned indirectly the English & American Insurance Company ("E&A"), which was a member of the ILU. The ILU required the Company to guarantee a portion of E&A's obligations. After E&A became insolvent in 1993, the ILU agreed to discharge the guarantee in exchange for the Company's agreement to post an evergreen letter of credit that is available to pay claims by policyholders on certain E&A policies issued through the ILU and incepting between July 3, 1980 and October 6, 1983. Certain claims have been paid under the letter of credit and the Company anticipates that additional claimants may seek to recover against the letter of credit.

Kroll-related Matters

Under the terms of a stock purchase agreement with Altegrity, Inc. ("Altegrity") related to Altegrity's purchase of Kroll from the Company in August 2010, a copy of which is attached as an exhibit to the Company's Quarterly Report on Form 10-Q for the period ended June 30, 2010, the Company agreed to provide a limited indemnity to Altegrity with respect to certain Kroll-related litigation and regulatory matters.

* * * *

The pending proceedings and other matters described in this Note 14 on Claims, Lawsuits and Other Contingencies may expose the Company or its subsidiaries to liability for significant monetary damages and other forms of relief. Where a loss is both probable and reasonably estimable, the Company establishes liabilities in accordance with FASB ASC Subtopic No. 450-20 (Contingencies - Loss Contingencies). Except as described above, the Company is not able at this time to provide a reasonable estimate of the range of possible loss attributable to these matters or the impact they may have on the Company's consolidated results of operations, financial position or cash flows. This is primarily because these matters are still developing and involve complex issues subject to inherent uncertainty. Adverse determinations in one or more of these matters could have a material impact on the Company's consolidated results of operations, financial condition or cash flows in a future period.

XML

Nature of Operations (Details) - Jun. 30, 2015 $ in Billions	USD ($) segment business_group
Segment Reporting Information [Line Items]
Number of business segments | segment	2
Consulting Segment [Member]
Segment Reporting Information [Line Items]
Number of business groups	2
Mercer Consulting Group [Member]
Segment Reporting Information [Line Items]
Assets under management | $	$ 136

XML

New Accounting Guidance

6 Months Ended

Jun. 30, 2015

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

New Accounting Guidance

New Accounting Guidance

In May 2015, the FASB issued new guidance which removes the requirement to present certain investments for which the practical expedient is used to measure fair value at net asset value within the fair value hierarchy table. Instead, an entity would be required to include those investments as a reconciling item so that the total fair value amount of investments in the disclosure is consistent with the fair value investment balance on the statement of net assets. This guidance is effective for fiscal years beginning after December 13, 2015. The adoption of this new guidance will affect footnote disclosure only and is not expected to have a material impact on the Company's financial statements.

In April 2015, the FASB issued new accounting guidance intended to simplify the presentation of debt issuance costs. The new guidance requires that debt issuance costs related to a recognized debt liability be presented

in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the new guidance. The guidance is effective for periods beginning after December 15, 2015. The new guidance should be applied on a retrospective basis, wherein the balance sheet of each individual period presented should be adjusted to reflect the period-specific effects of applying the new guidance. Upon transition, an entity is required to comply with the applicable disclosures for a change in an accounting principle. Adoption of the guidance is not expected to materially affect the Company's financial condition, results of operations or cash flows.

In February 2015, the FASB issued new accounting guidance intended to improve targeted areas of consolidation guidance for legal entities such as limited partnerships, limited liability corporations and securitization structures. The guidance focuses on the consolidation evaluation for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. The guidance is effective for periods beginning after December 15, 2015. Early adoption is permitted, including adoption in an interim period. The Company is currently evaluating the impact of the adoption of the guidance on its financial condition and results of operations.

In January 2015, the FASB issued new accounting guidance that eliminated the concept of extraordinary items. The guidance is effective for annual periods beginning after December 15, 2015. The guidance may be adopted prospectively, or retrospectively to all prior periods presented in the financial statements. Early adoption is permitted provided the guidance is applied from the beginning of the fiscal year of adoption. Adoption of the guidance is not expected to materially affect the Company's financial condition, results of operations or cash flows.

In June 2014, the FASB issued new accounting guidance to clarify the treatment of share-based payment awards that require a specific performance target to be achieved in order for employees to be eligible to vest in the awards which include terms that may provide that the performance conditions could be achieved after an employee completes the requisite service period. The guidance requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. As such, a reporting entity should apply the existing guidance as it relates to awards with performance conditions that affect vesting. The guidance is effective for annual periods beginning after December 15, 2015. Early adoption is permitted. Adoption of the guidance is not expected to materially affect the Company's financial condition, results of operations or cash flows.

In May 2014, the FASB issued new accounting guidance to clarify the principles for revenue recognition. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve that principle, the entity should apply the following steps: identify the contract(s) with the customer, identify the performance obligations in the contract(s), determine the transaction price, allocate the transaction price to the performance obligations in the contract and recognize revenue when (or as) the entity satisfies a performance obligation. The guidance was initially effective for fiscal years beginning after December 15, 2016, including interim periods within that reporting period, but was deferred to fiscal years beginning on or after December 15, 2017. Entities are permitted to adopt the guidance under one of the following methods: retrospectively to each prior reporting period presented (with certain practical expedients allowed) or retrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application. If an entity elects this transition method, it must provide disclosures in reporting periods that include the date of initial application of the amount by which each financial statement line item is affected in the current reporting period by application of the guidance as compared to guidance that was in effect before the change, and an explanation for the reasons for significant changes. The Company is currently evaluating the impact of the adoption of the guidance on its financial condition and results of operations.

In April 2014, the FASB issued new accounting guidance which changes the criteria for reporting discontinued operations and enhances disclosures in this area. Under the new guidance, only disposals representing a strategic shift in operations, such as disposal of a major geographic area or a major line of business, should be presented as discontinued operations. Those strategic shifts should have a major impact on the organization's operations and financial results. In addition, the new guidance requires expanded disclosures about discontinued operations. The guidance is effective for fiscal years beginning on or after December 15, 2014. Adoption of the guidance did not affect the Company's financial condition, results of operations or cash flows.

XML

Consolidated Statements of Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Shares [Member]	Non-Controlling Interests [Member]
Balance, beginning of year at Dec. 31, 2013		$ 561	$ 1,028	$ 9,452	$ (2,621)	$ (515)	$ 70
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			(47)
Issuance of shares under stock compensation plans and employee stock purchase plans and related tax impact			(67)			251
Net income	$ 894			874			20
Dividend equivalents declared – (per share amounts: $0.87 in 2015 and $0.78 in 2014)				(2)
Dividends declared – (per share amounts: $0.87 in 2015 and $0.78 in 2014)				(427)
Other comprehensive income (loss), net of tax	14				14
Purchase of treasury shares						(350)
Other changes							(13)
Balance, end of period at Jun. 30, 2014	8,228		914	9,897	(2,607)	(614)	77
Balance, beginning of year at Dec. 31, 2014	7,133	$ 561	930	10,335	(3,847)	(925)	79
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			(19)
Issuance of shares under stock compensation plans and employee stock purchase plans and related tax impact			(69)			235
Net income	924			901			23
Dividend equivalents declared – (per share amounts: $0.87 in 2015 and $0.78 in 2014)				(2)
Dividends declared – (per share amounts: $0.87 in 2015 and $0.78 in 2014)				(466)
Other comprehensive income (loss), net of tax	(76)				(76)
Purchase of treasury shares						(775)
Other changes							(13)
Balance, end of period at Jun. 30, 2015	$ 6,872		$ 842	$ 10,768	$ (3,923)	$ (1,465)	$ 89

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income before non-controlling interests	$ 429	$ 438	$ 924	$ 894
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	246	136	(180)	207
Gain (loss) related to pension/post-retirement plans	(83)	(42)	153	(241)
Other comprehensive (loss) income, before tax	163	94	(27)	(34)
Income tax expense (credit) on other comprehensive income	(4)	(7)	49	(48)
Other comprehensive (loss) income, net of tax	167	101	(76)	14
Comprehensive income	596	539	848	908
Less: comprehensive income attributable to non-controlling interest	10	7	23	20
Comprehensive income attributable to the Company	$ 586	$ 532	$ 825	$ 888

XML

Fair Value Measurements

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

Fair Value Hierarchy

The Company has categorized its assets and liabilities that are valued at fair value on a recurring basis into a three-level fair value hierarchy as defined by the Financial Accounting Standards Board ("FASB"). The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets and liabilities (Level 1) and lowest priority to unobservable inputs (Level 3). In some cases, the inputs used to measure fair value might fall into different levels of the fair value hierarchy. In such cases, the level in the fair value hierarchy, for disclosure purposes, is determined based on the lowest level input that is significant to the fair value measurement. Assets and liabilities recorded in the consolidated balance sheets at fair value are categorized based on the inputs in the valuation techniques as follows:

Level 1. Assets and liabilities whose values are based on unadjusted quoted prices for identical assets or liabilities in an active market (examples include active exchange-traded equity securities and money market mutual funds).

Assets and liabilities utilizing Level 1 inputs include exchange-traded mutual funds and money market funds.

Level 2. Assets and liabilities whose values are based on the following:

a) Quoted prices for similar assets or liabilities in active markets;

b) Quoted prices for identical or similar assets or liabilities in non-active markets (examples include corporate and municipal bonds, which trade infrequently);

c) Pricing models whose inputs are observable for substantially the full term of the asset or liability (examples include most over-the-counter derivatives, including interest rate and currency swaps); and

d) Pricing models whose inputs are derived principally from or corroborated by observable market data through correlation or other means for substantially the full asset or liability (for example, certain mortgage loans).

The Company does not have any assets or liabilities that utilize Level 2 inputs.

Level 3. Assets and liabilities whose values are based on prices, or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. These inputs reflect management’s own assumptions about the assumptions a market participant would use in pricing the asset or liability (examples include private equity investments, certain commercial mortgage whole loans, and long-dated or complex derivatives including certain foreign exchange options and long-dated options on gas and power).

Liabilities utilizing Level 3 inputs include liabilities for contingent purchase consideration.

Valuation Techniques

Equity Securities and Mutual Funds – Level 1

Investments for which market quotations are readily available are valued at the sale price on their principal exchange, or official closing bid price for certain markets.

Contingent Consideration Liability – Level 3

Purchase consideration for some acquisitions made by the Company includes contingent consideration arrangements. Contingent consideration arrangements are primarily based on meeting EBITDA and revenue targets over periods from two to four years. The fair value of contingent consideration is estimated as the present value of future cash flows resulting from the projected revenue and earnings of the acquired entities.

The following fair value hierarchy table presents information about the Company’s assets and liabilities measured at fair value on a recurring basis as of June 30, 2015 and December 31, 2014.

	Identical Assets (Level 1)				Observable Inputs (Level 2)				Unobservable Inputs (Level 3)				Total
(In millions of dollars)	06/30/15		12/31/14		06/30/15		12/31/14		06/30/15		12/31/14		06/30/15		12/31/14
Assets:
Financial instruments owned:
Mutual funds(a)	$	142	$	150	$	—	$	—	$	—	$	—	$	142	$	150
Money market funds(b)	40		107		—		—		—		—		40		107
Total assets measured at fair value	$	182	$	257	$	—	$	—	$	—	$	—	$	182	$	257
Fiduciary Assets:
Money market funds	$	66	$	57	$	—	$	—	$	—	$	—	$	66	$	57
Total fiduciary assets measured at fair value	$	66	$	57	$	—	$	—	$	—	$	—	$	66	$	57
Liabilities:
Contingent purchase consideration liability(c)	$	—	$	—	$	—	$	—	$	244	$	207	$	244	$	207
Total liabilities measured at fair value	$	—	$	—	$	—	$	—	$	244	$	207	$	244	$	207

^(a)  Included in other assets in the consolidated balance sheets.

^(b)  Included in cash and cash equivalents in the consolidated balance sheets.

^(c)  Included in accounts payable and accrued liabilities and other liabilities in the consolidated balance sheets.

During the six-month period ended June 30, 2015, there were no assets or liabilities that were transferred between any of the levels.

The table below sets forth a summary of the changes in fair value of the Company’s Level 3 liabilities as of June 30, 2015 and 2014 that represent contingent consideration related to acquisitions:

(In millions of dollars)	2015			2014
Balance at January 1,	$	207		$	104
Additions	49			67
Payments	(33		)	(36		)
Revaluation Impact	21			9
Balance at June 30,	$	244		$	144

The fair value of the contingent liability is based on projections of revenue and earnings for the acquired entities that are reassessed on a quarterly basis. As set forth in the table above, based on the Company's ongoing assessment of the fair value of contingent consideration, the Company recorded a net increase in the estimated fair value of such liabilities for prior-period acquisitions of $21 million in the six-month period ended June 30, 2015. A 5% increase in the above mentioned projections would increase the liability by approximately $23 million. A 5% decrease in the above mentioned projections would decrease the liability by approximately $31 million.

Fair Value of Long-Term Investments

The Company holds investments in certain private companies, public companies and certain private equity investments that are accounted for using the equity method of accounting. The carrying value of these investments amounted to $424 million at June 30, 2015 and $388 million at December 31, 2014. The Company's investments in private equity funds were $77 million and $61 million at June 30, 2015 and December 31, 2014, respectively. The carrying values of these private equity investments approximate fair value. The underlying private equity funds follow investment company accounting, where investments within the fund are carried at fair value. The Company records in earnings, investment gains/losses for its proportionate share of the change in fair value of the funds. These investments would be classified as Level 3 in the fair value hierarchy and are included in other assets in the consolidated balance sheets.

During 2014, the Company purchased 34% of the common stock of Alexander Forbes. As of June 30, 2015, the carrying value of the Company’s investment in Alexander Forbes was approximately $301 million. As of June 30, 2015, the market value of the approximately 443 million shares of Alexander Forbes owned by the Company, based on the June 30, 2015 closing share price of 9.00 South African Rand per share, was approximately $324 million. The Company’s investment in Alexander Forbes and its other equity investments in private companies are accounted for using the equity method of accounting and included in revenue in the consolidated income statements and in other assets in the consolidated balance sheets. The Company records its share of income or loss on its equity method investments on a one quarter lag basis.

On February 24, 2015, Mercer purchased shares of common stock of Benefitfocus (NASDAQ:BNFT) constituting approximately 9.9% of BNFT's outstanding capital stock as of the acquisition date. The purchase price for the BNFT shares and certain other rights and other consideration was approximately $75 million. The Company has elected to account for this investment under the cost method of accounting as the shares purchased are categorized as restricted and cannot be sold for more than one year. When the restrictions on sale are less than one year in duration (January 1, 2017), the shares are expected to be classified as available for sale. This investment would then be classified as Level 2 in the fair value hierarchy and included in other assets in the consolidated balance sheets. The value of the BNFT shares based on the closing price on the NASDAQ at June 30, 2015 and without regard to the restrictions on sale was approximately $124 million.

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 24, 2015
Document And Entity Information [Abstract]
Entity Registrant Name	MARSH & MCLENNAN COMPANIES, INC.
Entity Central Index Key	0000062709
Trading Symbol	MMC
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		529,992,560

XML

Retirement Benefits

6 Months Ended

Jun. 30, 2015

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Retirement Benefits

 Retirement Benefits

The Company maintains qualified and non-qualified defined benefit pension plans for its U.S. and non-U.S. eligible employees. The Company’s policy for funding its tax-qualified defined benefit retirement plans is to contribute amounts at least sufficient to meet the funding requirements set forth by U.S. law and the laws of the non-U.S. jurisdictions in which the Company offers defined benefit plans.

The target asset allocation for the Company's U.S. Plan was 64% equities and equity alternatives and 36% fixed income and at June 30, 2015, the actual allocation for the Company's U.S. Plan was 63% equities and equity alternatives and 37% fixed income. The target asset allocation for the Company's U.K. Plans, which comprises approximately 83% of non-U.S. Plan assets, is 48% equities and equity alternatives and 52% fixed income. At June 30, 2015, the actual allocation for the U.K. Plans was 48% equities and equity alternatives and 52% fixed income. The assets of the Company's defined benefit plans are diversified and are managed in accordance with applicable laws and with the goal of maximizing the plans' real return within acceptable risk parameters. The Company generally uses threshold-based portfolio re-balancing to ensure the actual portfolio remains consistent with target asset allocation ranges.

The components of the net periodic benefit cost for defined benefit and other post-retirement plans are as follows:

Combined U.S. and significant non-U.S. Plans	Pension						Post-retirement
For the Three Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	50		$	62		$	1		$	1
Interest cost	146			161			2			3
Expected return on plan assets	(243		)	(250		)	—			—
Amortization of prior service credit	—			(3		)	1			—
Recognized actuarial loss (gain)	78			53			(1		)	—
Net periodic benefit cost	$	31		$	23		$	3		$	4
Combined U.S. and significant non-U.S. Plans	Pension						Post-retirement
For the Six Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	102		$	123		$	2		$	2
Interest cost	292			322			4			6
Expected return on plan assets	(486		)	(498		)	—			—
Amortization of prior service credit	—			(6		)	1			—
Recognized actuarial loss (gain)	154			104			(1		)	—
Net periodic benefit cost	$	62		$	45		$	6		$	8
Curtailment credit	—			(65		)	—			—
Plan termination	—			—			(128		)	—
Total cost (credit)	$	62		$	(20	)	$	(122	)	$	8
U.S. Plans only	Pension						Post-retirement
For the Three Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	29		$	23		$	—		$	1
Interest cost	63			62			1			2
Expected return on plan assets	(92		)	(87		)	—			—
Amortization of prior service credit	—			(2		)	1			—
Recognized actuarial loss (gain)	46			27			(1		)	(1		)
Net periodic benefit cost	$	46		$	23		$	1		$	2
Plan termination	—			—			—			—
Total cost	$	46		$	23		$	1		$	2

U.S. Plans only	Pension						Post-retirement
For the Six Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015			2014
Service cost	$	59		$	45		$	1		$	1
Interest cost	125			125			2			4
Expected return on plan assets	(184		)	(173		)	—			—
Amortization of prior service credit	—			(4		)	1			—
Recognized actuarial loss (gain)	91			53			(1		)	(1		)
Net periodic benefit cost	$	91		$	46		$	3		$	4
Plan termination	—			—			(128		)	—
Total cost (credit)	$	91		$	46		$	(125	)	$	4

In March 2015, the Company amended its U.S. Post-65 retiree medical reimbursement plan (the "RRA plan"), resulting in its termination, with benefits to certain participants paid through December 31, 2016. As a result of the termination of the RRA plan, the Company recognized a net credit of approximately $125 million in the first quarter of 2015.

Significant non-U.S. Plans only	Pension						Post-retirement
For the Three Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015		2014
Service cost	$	21		$	39		$	1	$	—
Interest cost	83			99			1		1
Expected return on plan assets	(151		)	(163		)	—		—
Amortization of prior service credit	—			(1		)	—		—
Recognized actuarial loss	32			26			—		1
Net periodic benefit (credit) cost	$	(15	)	$	—		$	2	$	2

Significant non-U.S. Plans only	Pension						Post-retirement
For the Six Months Ended June 30,	Benefits						Benefits
(In millions of dollars)	2015			2014			2015		2014
Service cost	$	43		$	78		$	1	$	1
Interest cost	167			197			2		2
Expected return on plan assets	(302		)	(325		)	—		—
Amortization of prior service cost	—			(2		)	—		—
Recognized actuarial loss	63			51			—		1
Net periodic benefit (credit) cost	$	(29	)	$	(1	)	$	3	$	4
Curtailment (credit)	—			(65		)	—		—
Total (credit) cost	$	(29	)	$	(66	)	$	3	$	4

After completion of a consultation period with affected colleagues, in January 2014, the Company amended its U.K. defined benefit pension plans to close those plans to future benefit accruals effective August 1, 2014 and replaced those plans, along with its existing U.K. defined contribution plans, with a new, comprehensive defined contribution arrangement. This change resulted in a curtailment of the U.K. defined benefit plans, and as required under GAAP, the Company re-measured the defined benefit plans’ assets and liabilities at the amendment date, based on assumptions and market conditions at that date. As a result of the re-measurement, the projected benefit obligation ("PBO") increased by approximately $147 million and the funded status decreased by approximately $137 million. The change in the PBO and in the funded status relates primarily to a decrease in the discount rate at the re-measurement date. The net periodic benefit costs recognized in 2014 were the weighted average resulting from the December 31, 2013 measurement and the January 2014 re-measurement. The Company recognized a curtailment gain of $65 million in the first quarter of 2014, primarily resulting from the recognition of the remaining unamortized prior service credit related to a plan amendment made in December 2012. This gain was mostly offset by the cost of a transition benefit for certain employees most impacted by the amendment, which is not part of net periodic pension cost.

The weighted average actuarial assumptions utilized to calculate the net periodic benefit costs for the U.S. and significant non-U.S. defined benefit plans are as follows:

Combined U.S. and significant non-U.S. Plans	Pension Benefits				Post-retirement Benefits
June 30,	2015		2014		2015		2014
Weighted average assumptions:
Expected return on plan assets	7.25	%	7.53	%	—	%	—	%
Discount rate	3.79	%	4.74	%	4.08	%	5.03	%
Rate of compensation increase	2.42	%	2.64	%	—	%	—	%

The Company made approximately $88 million of contributions to its U.S. and non-U.S. defined benefit plans in the first six months of 2015. The Company expects to contribute approximately $106 million to its non-qualified U.S. pension and non-U.S. pension plans during the remainder of 2015.

XML

Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 930	$ 1,958
Receivables
Commissions and fees	3,404	3,142
Advanced premiums and claims	54	50
Other	297	280
Gross receivables	3,755	3,472
Less-allowance for doubtful accounts and cancellations	(96)	(95)
Net receivables	3,659	3,377
Current deferred tax assets	475	521
Other current assets	235	199
Total current assets	5,299	6,055
Goodwill and intangible assets	8,155	7,933
Fixed assets (net of accumulated depreciation and amortization of $1,663 at June 30, 2015 and $1,639 at December 31, 2014)	807	809
Pension related assets	1,148	967
Deferred tax assets	785	876
Other assets	1,219	1,200
Total assets	17,413	17,840
Current liabilities:
Short-term debt	111	11
Accounts payable and accrued liabilities	1,748	1,883
Accrued compensation and employee benefits	974	1,633
Accrued income taxes	209	178
Dividends payable	166	0
Total current liabilities	3,208	3,705
Fiduciary liabilities	4,869	4,552
Less – cash and investments held in a fiduciary capacity	(4,869)	(4,552)
Net fiduciary assets	0	0
Long-term debt	3,825	3,376
Pension, post-retirement and post-employment benefits	2,072	2,244
Liabilities for errors and omissions	357	341
Other liabilities	1,079	1,041
Commitments and contingencies	0	0
Equity:
Preferred stock, $1 par value, authorized 6,000,000 shares, none issued	0	0
Common stock, $1 par value, authorized 1,600,000,000 shares, issued 560,641,640 shares at June 30, 2015 and December 31, 2014	561	561
Additional paid-in capital	842	930
Retained earnings	10,768	10,335
Accumulated other comprehensive loss	(3,923)	(3,847)
Non-controlling interests	89	79
Stockholders' equity before treasury stock	8,337	8,058
Less – treasury shares, at cost, 29,276,148 shares at June 30, 2015 and 20,499,596 shares at December 31, 2014	(1,465)	(925)
Total equity	6,872	7,133
Total liabilities and stockholders' equity	$ 17,413	$ 17,840

XML

Per Share Data

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Per Share Data

Per Share Data

Basic net income per share attributable to the Company and income from continuing operations per share are calculated by dividing the respective after-tax income by the weighted average number of outstanding shares of the Company’s common stock.

Diluted net income per share attributable to the Company and income from continuing operations per share are calculated by dividing the respective after-tax income by the weighted average number of outstanding shares of the Company’s common stock, which have been adjusted for the dilutive effect of potentially issuable common shares. Reconciliations of the applicable income components used for diluted EPS - Continuing operations and basic weighted average common shares outstanding to diluted weighted average common shares outstanding are presented below. The reconciling items related to the calculation of diluted weighted average common shares outstanding are the same for net income attributable to the Company.

Basic and Diluted EPS Calculation - Continuing Operations	Three Months Ended June 30,				Six Months Ended June 30,
(In millions, except per share figures)	2015		2014		2015		2014
Net income from continuing operations	$	429	$	440	$	927	$	897
Less: Net income attributable to non-controlling interests	10		7		23		20
	$	419	$	433	$	904	$	877
Basic weighted average common shares outstanding	535		549		537		548
Dilutive effect of potentially issuable common shares	6		7		6		8
Diluted weighted average common shares outstanding	541		556		543		556
Average stock price used to calculate common stock equivalents	$	57.75	$	49.67	$	57.06	$	48.75

There were 16.2 million and 20.6 million stock options outstanding as of June 30, 2015 and 2014, respectively.

XML

Fiduciary Assets and Liabilities

6 Months Ended

Jun. 30, 2015

Fiduciary Assets And Liabilities [Abstract]

Fiduciary Assets and Liabilities

Fiduciary Assets and Liabilities

In its capacity as an insurance broker or agent, the Company collects premiums from insureds and, after deducting its commissions, remits the premiums to the respective insurance underwriters. The Company also collects claims or refunds from underwriters on behalf of insureds. Unremitted insurance premiums and claims proceeds are held by the Company in a fiduciary capacity. Risk and Insurance Services revenue includes interest on fiduciary funds of $10 million and $12 million for the six-month periods ended June 30, 2015 and 2014, respectively. The Consulting segment recorded fiduciary interest income of $2 million and $3 millionfor the six-month periods ended June 30, 2015 and 2014, respectively. Since fiduciary assets are not available for corporate use, they are shown in the consolidated balance sheets as an offset to fiduciary liabilities.

Net uncollected premiums and claims and the related payables amounted to $8.9 billion at June 30, 2015 and $7.3 billion atDecember 31, 2014. The Company is not a principal to the contracts under which the right to receive premiums or the right to receive reimbursement of insured losses arises. Net uncollected premiums and claims and the related payables are, therefore, not assets and liabilities of the Company and are not included in the accompanying consolidated balance sheets.

In certain instances, the Company advances premiums, refunds or claims to insurance underwriters or insureds prior to collection. These advances are made from corporate funds and are reflected in the accompanying consolidated balance sheets as receivables.

Mercer manages approximately $25 billion of assets in trusts or funds for which Mercer’s management or trustee fee is considered a variable interest. Mercer is not the primary beneficiary of these trusts or funds. Mercer’s only variable interest in any of these trusts or funds is its unpaid fees, if any. Mercer’s maximum exposure to loss of its interests is, therefore, limited to collection of its fees.

XML

Segment Information

6 Months Ended

Jun. 30, 2015

Segment Reporting [Abstract]

Segment Information

Segment Information

The Company is organized based on the types of services provided. Under this organizational structure, the Company’s business segments are:

▪ Risk and Insurance Services, comprising insurance services (Marsh) and reinsurance services (Guy Carpenter); and

▪ Consulting, comprising Mercer and Oliver Wyman Group

The accounting policies of the segments are the same as those used for the consolidated financial statements described in Note 1 to the Company’s 2014 Form 10-K. Segment performance is evaluated based on segment operating income, which includes directly related expenses, and charges or credits related to integration and restructuring but not the Company’s corporate-level expenses. Revenues are attributed to geographic areas on the basis of where the services are performed.

Selected information about the Company’s operating segments for the three- and six-month periods ended June 30, 2015 and 2014 are as follows:

	Three Months Ended June 30,							Six Months Ended June 30,
(In millions of dollars)	Revenue				Operating Income (Loss)			Revenue				Operating Income (Loss)
2015–
Risk and Insurance Services	$	1,750		(a)	$	427		$	3,553		(c)	$	960
Consulting	1,487			(b)	248			2,908			(d)	496
Total Operating Segments	3,237				675			6,461				1,456
Corporate / Eliminations	(12		)		(46		)	(21		)		(92		)
Total Consolidated	$	3,225			$	629		$	6,440			$	1,364
2014–
Risk and Insurance Services	$	1,791		(a)	$	448		$	3,630		(c)	$	941
Consulting	1,520			(b)	247			2,952			(d)	472
Total Operating Segments	3,311				695			6,582				1,413
Corporate / Eliminations	(11		)		(48		)	(18		)		(93		)
Total Consolidated	$	3,300			$	647		$	6,564			$	1,320

^(a)  Includes inter-segment revenue of $4 million and $3 million in 2015and 2014, respectively, interest income on fiduciary funds of $5 million and $6 million in 2015 and 2014, respectively, and equity method income of $0 million and $6 million in 2015 and 2014, respectively.

^(b)  Includes inter-segment revenue of $8 million in both 2015 and 2014, interest income on fiduciary funds of $1 millionin 2015 and$2 million in 2014, and equity method income of $5 million in 2015 and $0 million in 2014.

^(c)  Includes inter-segment revenue of $5 million and $3 million in 2015 and 2014, respectively, interest income on fiduciary funds of $10 million and $12 million in 2015 and 2014, respectively, and equity method income of $2 million in 2015 and $6 million in 2014.

^(d)  Includes inter-segment revenue of $16 million and $15 million in 2015 and 2014, respectively, interest income on fiduciary funds of $2 million and $3 million in 2015 and 2014, respectively, and equity method income of $8 million in 2015 and $0 million in 2014.

Details of operating segment revenue for the three- and six-month periods ended June 30, 2015 and 2014 are as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
(In millions of dollars)	2015			2014			2015			2014
Risk and Insurance Services
Marsh	$	1,474		$	1,495		$	2,908		$	2,952
Guy Carpenter	276			296			645			678
Total Risk and Insurance Services	1,750			1,791			3,553			3,630
Consulting
Mercer	1,046			1,071			2,083			2,132
Oliver Wyman Group	441			449			825			820
Total Consulting	1,487			1,520			2,908			2,952
Total Operating Segments	3,237			3,311			6,461			6,582
Corporate / Eliminations	(12		)	(11		)	(21		)	(18		)
Total	$	3,225		$	3,300		$	6,440		$	6,564

XML

Debt

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

Debt

Debt

The Company’s outstanding debt is as follows:

(In millions of dollars)	June 30, 2015		December 31, 2014
Short-term:
Commercial paper	$	50	$	—
Current portion of long-term debt	61		11
	111		11
Long-term:
Senior notes – 2.30% due 2017	249		249
Senior notes – 2.55% due 2018	249		249
Senior notes – 2.35% due 2019	300		300
Senior notes – 2.35% due 2020	500		—
Senior notes – 4.80% due 2021	497		497
Senior notes – 4.05% due 2023	248		248
Senior notes – 3.50% due 2024	599		595
Senior notes – 3.50% due 2025	498		498
Senior notes – 5.875% due 2033	297		297
Mortgage – 5.70% due 2035	398		403
Term Loan Facility – due 2016	50		50
Other	1		1
	3,886		3,387
Less current portion	61		11
	$	3,825	$	3,376

The senior notes in the table above are publicly registered by the Company with no guarantees attached.

The Company had $50 million of commercial paper outstanding at June 30, 2015 with a weighted average interest rate of 0.54%.

In March 2015, the Company issued $500 million of 2.35%five-year senior notes. The Company used the net proceeds for general corporate purposes.

In September 2014, the Company issued $300 million of 2.35%five-year senior notes and $500 million of 3.50%10.5-year senior notes. In October 2014, a significant portion of the net proceeds of this offering were used to redeem $630 million of debt, including $230 million of 5.75% senior notes due in September 2015 and $400 million of 9.25% senior notes due in 2019. Total cash outflow related to this transaction was approximately $765 million, including a $137 million cost for early redemption, which was reflected as a charge in the consolidated statements of income in the fourth quarter of 2014.

In May 2014, the Company issued $600 million of 3.50%ten-year senior notes. The net proceeds of this offering were used for general corporate purposes, which included the repayment of $320 million of the existing 5.375% senior notes, which matured on July 15, 2014.

The Company and certain of its foreign subsidiaries maintain a $1.2 billion multi-currency five-year unsecured revolving credit facility. The interest rate on this facility is based on LIBOR plus a fixed margin which varies with the Company's credit ratings. This facility expires in March 2019 and requires the Company to maintain certain coverage and leverage ratios which are tested quarterly. There were no borrowings outstanding under this facility at June 30, 2015.

In December 2012, the Company closed on a $50 million, three-year term loan facility. The interest rate on this facility at June 30, 2015 was 1.19%, which is based on LIBOR plus a fixed margin which varies with the Company's credit ratings. The facility requires the Company to maintain coverage ratios and leverage ratios consistent with the revolving credit facility discussed above. The Company had $50 million of borrowings outstanding under this facility at June 30, 2015.

Fair Value of Short-term and Long-term Debt

The estimated fair value of the Company’s short-term and long-term debt is provided below. Certain estimates and judgments were required to develop the fair value amounts. The fair value amounts shown below are not necessarily indicative of the amounts that the Company would realize upon disposition, nor do they indicate the Company’s intent or need to dispose of the financial instrument.

	June 30, 2015				December 31, 2014
(In millions of dollars)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Short-term debt	$	111	$	111	$	11	$	11
Long-term debt	$	3,825	$	3,919	$	3,376	$	3,493

The fair value of the Company’s short-term debt, which consists primarily of commercial paper and term debt maturing in the next year, approximates its carrying value. The estimated fair value of a primary portion of the Company's long-term debt is based on discounted future cash flows using current interest rates available for debt with similar terms and remaining maturities. Short- and long-term debt would be classified as Level 2 in the fair value hierarchy.

XML

Acquisitions

6 Months Ended

Jun. 30, 2015

Business Combinations [Abstract]

Acquisitions

Acquisitions

The Company completed 8 acquisitions during the first six months of 2015.

• January – Marsh acquired INGESEG S.A., an insurance brokerage located in Argentina.

• February – Oliver Wyman acquired TeamSAI, a Georgia-based provider of consulting and technical services to the transportation industry, and Mercer acquired Strategic Capital Management AG, a Switzerland-based institutional investment advisor.

• May - Marsh acquired Sylvite Financial Services, Inc., a Canada-based insurance consulting firm and Sumitomo Life Insurance Agency America, Inc., an employee benefits brokerage and consulting firm providing employee benefit and other services to U.S.-based subsidiaries of Japanese companies.

• June - Marsh & McLennan Agency ("MMA") acquired MHBT, Inc., a Texas-based insurance broker. Marsh acquired SIS Co. Ltd, a Korea-based insurance broker and advisor. Mercer acquired Kepler Associates, a U.K.-based executive remuneration specialist.

Total purchase consideration for acquisitions made during the first six months of 2015 was $331 million, which consisted of cash paid of $236 million and deferred purchase and estimated contingent consideration of $95 million. Contingent consideration arrangements are primarily based on EBITDA and revenue targets over periods ranging from two to four years. The fair value of the contingent consideration was based on projected revenue and earnings of the acquired entities. The estimated fair values of assets acquired and liabilities assumed are subject to adjustment when purchase accounting is finalized. The Company also paid $28 million of deferred purchase consideration and $33 million of contingent consideration related to acquisitions made in prior years. In addition, the Company purchased other intangible assets in the amount of $3 million.

The following table presents the preliminary allocation of the acquisition cost to the assets acquired and liabilities assumed during 2015 based on their fair values:

For the Six Months Ended June 30, 2015
(In millions of dollars)
Cash	$	236
Estimated fair value of deferred/contingent consideration	95
Total Consideration	$	331
Allocation of purchase price:
Cash and cash equivalents	$	5
Accounts receivable, net	8
Property, plant, and equipment	2
Intangible assets	138
Goodwill	188
Other assets	2
Total assets acquired	343
Current liabilities	9
Other liabilities	3
Total liabilities assumed	12
Net assets acquired	$	331

Prior Year Acquisitions

The Risk and Insurance Services segment completed fifteen acquisitions during 2014.

• January – MMA acquired Barney & Barney, LLC, a San Diego-based insurance broking firm that provides insurance, risk management and employee benefits solutions to businesses and individuals throughout the U.S. and abroad, Great Lakes Employee Benefits Services, Inc., an employee group benefits consulting and brokerage firm based in Michigan, and Bond Network, Inc., a surety bonding agency based in North Carolina.

• February – Marsh acquired Central Insurance Services, an independent insurance broker in Scotland that provides insurance broking and risk advisory services to companies of all sizes across industry sectors.

• March – MMA acquired Capstone Insurance Services, LLC, an agency that provides property-casualty insurance and risk management solutions to businesses and individuals throughout South Carolina.

• May – MMA acquired Kinker-Eveleigh Insurance Agency, an Ohio-based agency specializing in property-casualty and employee benefits solutions, VISICOR, a full-service employee benefits brokerage and consulting firm based in Texas, and Senn Dunn Insurance, a full-service insurance brokerage located in North Carolina.

• August – Marsh acquired Seguros Morrice y Urrutia S.A., an insurance broker based in Panama City, Panama.

• September – Marsh acquired Kocisko Insurance Brokers, Inc., a full-service commercial insurance brokerage located in Montreal, Quebec.

• October – MMA acquired NuWest Insurance Services, Inc., a California-based property-casualty agency.

• November – Marsh acquired Torrent Technologies, Inc., a Montana-based flood insurance specialist.

• December – Marsh acquired Seafire Insurance Services, LLC, a Kansas-based managing general underwriter, and Trade Insure NV, a leading distributor of credit insurance policies in Belgium, and MMA acquired The Benefit Planning Group, Inc., a North Carolina-based employee benefit consulting firm.

The Consulting segment completed six acquisitions during 2014.

• February – Mercer acquired Transition Assist, a retiree exchange specializing in helping retirees in employer-sponsored plans select Medicare supplemental health care insurance.

• September – Oliver Wyman acquired Bonfire Communications, an agency specializing in employee engagement and internal communications based in San Francisco, California.

• November – Mercer acquired AUSREM, a remuneration research and workforce consulting specialist based in Australia, and Jeitosa Group International, a global HR business consultancy and IT systems integration firm.

• December – Mercer acquired Denarius, a compensation and benefits survey and information products consulting firm based in Chile, and Oliver Wyman acquired OC&C Strategy Consultants (Boston) LLC (part of the OC&C network), a Boston-based consulting firm specializing in the business media, information services and education sectors.

Total purchase consideration for acquisitions made during the first six months of 2014 was $534 million, which consisted of cash paid of $394 million and deferred purchase and estimated contingent consideration of $140 million. Contingent consideration arrangements are primarily based on EBITDA and revenue targets over periods ranging from two to four years. The fair value of the contingent consideration was based on projected revenue and earnings of the acquired entities. The estimated fair values of assets acquired and liabilities assumed are subject to adjustment when purchase accounting is finalized. In the first six months of 2014, the Company also paid $9 million of deferred purchase consideration and $36 million of contingent consideration related to acquisitions made in prior years.

Pro-Forma Information

While the Company does not believe its acquisitions in the aggregate are material, the following unaudited pro-forma financial data gives effect to the acquisitions made by the Company during 2015 and 2014. In accordance with accounting guidance related to pro-forma disclosures, the information presented for current year acquisitions is as if they occurred on January 1, 2014 and reflects acquisitions made in 2014 as if they occurred on January 1, 2013. The unaudited pro-forma information adjusts for the effects of amortization of acquired intangibles. The unaudited pro-forma financial data is presented for illustrative purposes only and is not necessarily indicative of the operating results that would have been achieved if such acquisitions had occurred on the dates indicated, nor is it necessarily indicative of future consolidated results.

	Three Months Ended June 30,				Six Months Ended June 30,
(In millions, except per share figures)	2015		2014		2015		2014
Revenue	$	3,241	$	3,352	$	6,488	$	6,683
Income from continuing operations	$	433	$	441	$	934	$	902
Net income attributable to the Company	$	422	$	432	$	908	$	879
Basic net income per share:
– Continuing operations	$	0.79	$	0.79	$	1.70	$	1.61
– Net income attributable to the Company	$	0.79	$	0.79	$	1.69	$	1.60
Diluted net income per share:
– Continuing operations	$	0.78	$	0.78	$	1.68	$	1.59
– Net income attributable to the Company	$	0.78	$	0.78	$	1.67	$	1.58

The consolidated statements of income include the results of operations of acquired companies since their respective acquisition dates. The consolidated statements of income for the three- and six-month periods ended June 30, 2015 include approximately $15 million and $18 million of revenue, respectively, and $0 million and $1 million of operating income, respectively, related to acquisitions made in 2015.

XML

Debt (Estimated Fair Value of Significant Financial Instruments) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term debt	$ 111	$ 11
Long-term debt	3,825	3,376
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term debt	111	11
Long-term debt	$ 3,919	$ 3,493

XML

Supplemental Disclosures To The Consolidated Statements Of Cash Flows

6 Months Ended

Jun. 30, 2015

Supplemental Cash Flow Information [Abstract]

Supplemental Disclosures to the Consolidated Statements of Cash Flows

Supplemental Disclosures to the Consolidated Statements of Cash Flows

The following schedule provides additional information concerning acquisitions, interest and income taxes paid for the six-month periods ended June 30, 2015 and 2014.

(In millions of dollars)	2015			2014
Assets acquired, excluding cash	$	338		$	554
Liabilities assumed	(12		)	(40		)
Contingent/deferred purchase consideration	(95		)	(140		)
Net cash outflow for current year acquisitions	$	231		$	374
Cash paid into escrow for future acquisition	29			—
Net cash outflow for acquisitions	$	260		$	374

(In millions of dollars)	2015		2014
Interest paid	$	69	$	82
Income taxes paid	$	223	$	218

The Company paid deferred purchase consideration related to prior years' acquisitions of $28 million and $9 million for the six months ended June 30, 2015 and 2014, respectively.

The Company had non-cash issuances of common stock of $67 million and $102 million for the six months ended June 30, 2015 and 2014, respectively, primarily related to its share-based payment plans. The Company recorded share-based compensation expense related to equity awards (excluding stock options) of $33 million and $41 million for the six-month periods ended June 30, 2015 and 2014, respectively.

The consolidated statement of cash flows includes the cash flow impact of discontinued operations related to indemnification payments from the Putnam disposition, that reduced the net cash flow provided by operations by $82 million for the six months ended June 30, 2015.

XML

Other Comprehensive Income (Loss)

6 Months Ended

Jun. 30, 2015

Equity [Abstract]

Other Comprehensive Income (Loss)

Other Comprehensive Income (Loss)

The changes in the balances of each component of Accumulated Other Comprehensive Income ("AOCI") for the three- and six-month periods ended June 30, 2015 and 2014, including amounts reclassified out of AOCI, are as follows:

(In millions of dollars)	Unrealized Investment Gains		Pension/Post-Retirement Plans Gains (Losses)			Foreign Currency Translation Adjustments			Total
Balance as of April 1, 2015	$	5	$	(3,213	)	$	(882	)	$	(4,090	)
Other comprehensive income (loss) before reclassifications	—		(126		)	243			117
Amounts reclassified from accumulated other comprehensive income	—		50			—			50
Net current period other comprehensive income (loss)	—		(76		)	243			167
Balance as of June 30, 2015	$	5	$	(3,289	)	$	(639	)	$	(3,923	)

(In millions of dollars)	Unrealized Investment Gains		Pension/Post-Retirement Plans Gains (Losses)			Foreign Currency Translation Adjustments		Total
Balance as of April 1, 2014	$	5	$	(2,847	)	$	134	$	(2,708	)
Other comprehensive income (loss) before reclassifications	—		(69		)	137		68
Amounts reclassified from accumulated other comprehensive income	—		33			—		33
Net current period other comprehensive income (loss)	—		(36		)	137		101
Balance as of June 30, 2014	$	5	$	(2,883	)	$	271	$	(2,607	)

(In millions of dollars)	Unrealized Investment Gains		Pension/Post-Retirement Plans Gains (Losses)			Foreign Currency Translation Adjustments			Total
Balance as of January 1, 2015	$	5	$	(3,393	)	$	(459	)	$	(3,847	)
Other comprehensive income (loss) before reclassifications	—		2			(180		)	(178		)
Amounts reclassified from accumulated other comprehensive income	—		102			—			102
Net current period other comprehensive income (loss)	—		104			(180		)	(76		)
Balance as of June 30, 2015	$	5	$	(3,289	)	$	(639	)	$	(3,923	)

(In millions of dollars)	Unrealized Investment Gains		Pension/Post-Retirement Plans Gains (Losses)			Foreign Currency Translation Adjustments		Total
Balance as of January 1, 2014	$	5	$	(2,682	)	$	56	$	(2,621	)
Other comprehensive income (loss) before reclassifications	—		(268		)	215		(53		)
Amounts reclassified from accumulated other comprehensive income	—		67			—		67
Net current period other comprehensive income (loss)	—		(201		)	215		14
Balance as of June 30, 2014	$	5	$	(2,883	)	$	271	$	(2,607	)

The components of other comprehensive income (loss) for the three- and six-month periods ended June 30, 2015 and 2014 are as follows:

Three Months Ended June 30,	2015									2014
(In millions of dollars)	Pre-Tax			Tax			Net of Tax			Pre-Tax			Tax			Net of Tax
Foreign currency translation adjustments	$	246		$	3		$	243		$	136		$	(1	)	$	137
Pension/post-retirement plans:
Amortization of losses (gains) included in net periodic pension cost:
Prior service gains (a)	—			—			—			(2		)	(1		)	(1		)
Net actuarial losses (a)	76			26			50			49			15			34
Subtotal	76			26			50			47			14			33
Effect of remeasurement	1			—			1			—			—			—
Effect of settlement	1			—			1			—			—			—
Foreign currency translation adjustments	(161		)	(33		)	(128		)	(91		)	(20		)	(71		)
Other	—			—			—			2			—			2
Pension/post-retirement plans (losses) gains	(83		)	(7		)	(76		)	(42		)	(6		)	(36		)
Other comprehensive income (loss)	$	163		$	(4	)	$	167		$	94		$	(7	)	$	101
(a) Components of net periodic pension cost are included in compensation and benefits in the Consolidated Statements of Income. Tax on prior service gains and net actuarial losses is included in income tax expense.

Six Months Ended June 30,	2015									2014
(In millions of dollars)	Pre-Tax			Tax			Net of Tax			Pre-Tax			Tax			Net of Tax
Foreign currency translation adjustments	$	(180	)	$	—		$	(180	)	$	207		$	(8	)	$	215
Pension/post-retirement plans:
Amortization of losses (gains) included in net periodic pension cost:
Prior service gains (a)	—			—			—			(5		)	(2		)	(3		)
Net actuarial losses (a)	153			51			102			100			30			70
Subtotal	153			51			102			95			28			67
Effect of remeasurement	(3		)	(1		)	(2		)	(166		)	(33		)	(133		)
Effect of curtailment	—			—			—			(65		)	(13		)	(52		)
Effect of settlement	1			—			1			—			—			—
Plan Termination	(6		)	(2		)	(4		)	—			—			—
Foreign currency translation adjustments	8			1			7			(108		)	(22		)	(86		)
Other	—			—			—			3			—			3
Pension/post-retirement plans (losses) gains	153			49			104			(241		)	(40		)	(201		)
Other comprehensive (loss) income	$	(27	)	$	49		$	(76	)	$	(34	)	$	(48	)	$	14
(a) Components of net periodic pension cost are included in compensation and benefits in the Consolidated Statements of Income. Tax on prior service gains and net actuarial losses is included in income tax expense.

XML

Goodwill and Other Intangibles

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangibles

Goodwill and Other Intangibles

The Company is required to assess goodwill and any indefinite-lived intangible assets for impairment annually, or more frequently if circumstances indicate impairment may have occurred. The Company performs the annual impairment test for each of its reporting units during the third quarter of each year. In accordance with applicable accounting guidance, the Company assesses qualitative factors to determine whether it is necessary to perform the two-step goodwill impairment test. The Company considers numerous factors, which include whether the fair value of each reporting unit exceeded its fair value by a substantial margin in its most recent estimate of reporting unit fair values, whether significant acquisitions or dispositions occurred which might alter the fair value of its reporting units, macroeconomic conditions and their potential impact on reporting unit fair values, actual performance compared with budget and prior projections used in its estimation of reporting unit fair values, industry and market conditions, and the year-over-year change in the Company’s share price. The Company completed its qualitative assessment in the third quarter of 2014 and concluded that a two-step goodwill impairment test was not required in 2014 and that goodwill was not impaired.

Other intangible assets that are not deemed to have an indefinite life are amortized over their estimated lives and reviewed for impairment upon the occurrence of certain triggering events in accordance with applicable accounting literature.

Changes in the carrying amount of goodwill are as follows:

June 30,
(In millions of dollars)	2015			2014
Balance as of January 1, as reported	$	7,241		$	6,893
Goodwill acquired	188			334
Other adjustments(a)	(48		)	3
Balance at June 30,	$	7,381		$	7,230

^(a)  Primarily reflects the impact of foreign exchange in each period.

Goodwill allocable to the Company’s reportable segments at June 30, 2015 is as follows: Risk & Insurance Services, $5.2 billion and Consulting, $2.2 billion.

Amortized intangible assets consist of the cost of client lists, client relationships and trade names acquired. The gross cost and accumulated amortization are as follows:

	June 30, 2015						December 31, 2014
(In millions of dollars)	Gross Cost		Accumulated Amortization		Net Carrying Amount		Gross Cost		Accumulated Amortization		Net Carrying Amount
Amortized intangibles	$	1,292	$	518	$	774	$	1,177	$	485	$	692

Aggregate amortization expense for the six months ended June 30, 2015 and2014 was $48 million and $42 million, respectively. The estimated future aggregate amortization expense is as follows:

For the Years Ending December 31,
(In millions of dollars)	Estimated Expense
2015 (excludes amortization through June 30, 2015)	$	55
2016	98
2017	94
2018	88
2019	83
Subsequent years	356
	$	774

XML

Segment Information (Selected Information And Details For MMC's Operating Segments) (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2015		Jun. 30, 2014
Segment Reporting Information [Line Items]
Revenue	$ 3,225		$ 3,300		$ 6,440		$ 6,564
Operating Income (Loss)	629		647		1,364		1,320
Risk and Insurance Services Segment [Member]
Segment Reporting Information [Line Items]
Interest Income, Fiduciary Assets					10		12
Consulting Segment [Member]
Segment Reporting Information [Line Items]
Interest Income, Fiduciary Assets					2		3
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	3,237		3,311		6,461		6,582
Operating Income (Loss)	675		695		1,456		1,413
Operating Segments [Member] | Risk and Insurance Services Segment [Member]
Segment Reporting Information [Line Items]
Revenue	1,750	[1]	1,791	[1]	3,553	[2]	3,630	[2]
Operating Income (Loss)	427		448		960		941
Interest Income, Fiduciary Assets	5		6		10		12
Equity method income	0		6		2		6
Operating Segments [Member] | Consulting Segment [Member]
Segment Reporting Information [Line Items]
Revenue	1,487	[3]	1,520	[3]	2,908	[4]	2,952	[4]
Operating Income (Loss)	248		247		496		472
Interest Income, Fiduciary Assets	1		2		2		3
Equity method income	5		0		8		0
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	(12)		(11)		(21)		(18)
Intersegment Eliminations [Member] | Risk and Insurance Services Segment [Member]
Segment Reporting Information [Line Items]
Revenue	4		3		5		3
Intersegment Eliminations [Member] | Consulting Segment [Member]
Segment Reporting Information [Line Items]
Revenue	8		8		16		15
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)	$ (46)		$ (48)		$ (92)		$ (93)

[1] Includes inter-segment revenue of $4 million and $3 million in 2015 and 2014, respectively, interest income on fiduciary funds of $5 million and $6 million in 2015 and 2014, respectively, and equity method income of $0 million and $6 million in 2015 and 2014, respectively.

[2] Includes inter-segment revenue of $5 million and $3 million in 2015 and 2014, respectively, interest income on fiduciary funds of $10 million and $12 million in 2015 and 2014, respectively, and equity method income of $2 million in 2015 and $6 million in 2014.

[3] Includes inter-segment revenue of $8 million in both 2015 and 2014, interest income on fiduciary funds of $1 million in 2015 and $2 million in 2014, and equity method income of $5 million in 2015 and $0 million in 2014.

[4] Includes inter-segment revenue of $16 million and $15 million in 2015 and 2014, respectively, interest income on fiduciary funds of $2 million and $3 million in 2015 and 2014, respectively, and equity method income of $8 million in 2015 and $0 million in 2014.

XML

Claims, Lawsuits And Other Contingencies (Details) £ in Millions	Jun. 30, 2015 GBP (£)
Other Contingencies-Guarantees [Member]
Loss Contingencies [Line Items]
Amount reinsured by third party	£ 40

XML

Restructuring Costs (Tables)

6 Months Ended

Jun. 30, 2015

Restructuring and Related Activities [Abstract]

Restructuring Activities

Details of the restructuring activity from January 1, 2014 through June 30, 2015, which includes liabilities from actions prior to 2015, are as follows:

(In millions of dollars)	Liability at 1/1/14		Amounts Accrued		Cash Paid			Other			Liability at 12/31/14		Amounts Accrued		Cash Paid			Liability at 6/30/15
Severance	$	11	$	4	$	(8	)	$	—		$	7	$	2	$	(4	)	$	5
Future rent under non-cancelable leases and other costs	113		8		(35		)	(1		)	85		3		(8		)	80
Total	$	124	$	12	$	(43	)	$	(1	)	$	92	$	5	$	(12	)	$	85

XML

Goodwill And Other Intangibles (Estimated Future Aggregate Amortization Expense) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
2015 (excludes amortization through June 30, 2015)	$ 55
2016	98
2017	94
2018	88
2019	83
Subsequent years	356
Net Carrying Amount	$ 774	$ 692

XML

Common Stock

6 Months Ended

Jun. 30, 2015

Equity [Abstract]

Common Stock

Common Stock

During the first six months of 2015, the Company repurchased approximately 13.5 million shares of its common stock for consideration of $775 million. In May 2015, the Board of Directors renewed the Company's share repurchase program, allowing management to buy back up to $2 billion of the Company's common stock. At June 30, 2015, the Company remains authorized to purchase additional shares of its common stock up to a value of approximately $1.8 billion. There is no time limit on the authorization. During the first six months of 2014, the Company repurchased 7 million shares of its common stock for consideration of $350 million.

XML

Per Share Data (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Diluted EPS Calculation Continuing Operations

Reconciliations of the applicable income components used for diluted EPS - Continuing operations and basic weighted average common shares outstanding to diluted weighted average common shares outstanding are presented below. The reconciling items related to the calculation of diluted weighted average common shares outstanding are the same for net income attributable to the Company.

Basic and Diluted EPS Calculation - Continuing Operations	Three Months Ended June 30,				Six Months Ended June 30,
(In millions, except per share figures)	2015		2014		2015		2014
Net income from continuing operations	$	429	$	440	$	927	$	897
Less: Net income attributable to non-controlling interests	10		7		23		20
	$	419	$	433	$	904	$	877
Basic weighted average common shares outstanding	535		549		537		548
Dilutive effect of potentially issuable common shares	6		7		6		8
Diluted weighted average common shares outstanding	541		556		543		556
Average stock price used to calculate common stock equivalents	$	57.75	$	49.67	$	57.06	$	48.75

XML

Goodwill and Other Intangibles (Changes in the Carrying Amount of Goodwill) (Details) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014
Goodwill [Roll Forward]
Balance as of January 1, as reported		$ 7,241	$ 6,893
Goodwill acquired		188	334
Other adjustments	[1]	(48)	3
Balance at June 30,		$ 7,381	$ 7,230

[1] Primarily reflects the impact of foreign exchange in each period.

XML

Supplemental Disclosures to the Consolidated Statements of Cash Flows (Additional Information Concerning Acquisitions, Interest And Income Taxes Paid) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Supplemental Cash Flow Information [Abstract]
Assets acquired, excluding cash	$ 338	$ 554
Liabilities assumed	(12)	(40)
Contingent/deferred purchase consideration	(95)	(140)
Net cash outflow for current year acquisitions	231	374
Cash paid into escrow for future acquisition	29	0
Net cash outflow for acquisitions	260	374
Interest paid	69	82
Income taxes paid	$ 223	$ 218

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Fixed assets, accumulated depreciation and amortization	$ 1,663	$ 1,639
Preferred stock, par value (usd per share)	$ 1	$ 1
Preferred stock, shares authorized	6,000,000	6,000,000
Preferred stock, shares issued	0	0
Common stock, par value (usd per share)	$ 1	$ 1
Common stock, shares authorized	1,600,000,000	1,600,000,000
Common stock, shares issued	560,641,640	560,641,640
Treasury shares, shares	29,276,148	20,499,596

XML

Principles of Consolidation and Other Matters

6 Months Ended

Jun. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Principles of Consolidation and Other Matters

Principles of Consolidation and Other Matters

The consolidated financial statements included herein have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission. While certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been omitted pursuant to such rules and regulations for interim filings, the Company believes that the information and disclosures presented are adequate to make such information and disclosures not misleading. These consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014 (the "2014 Form 10-K").

The financial information contained herein reflects all normal recurring adjustments which are, in the opinion of management, necessary for a fair presentation of the Company’s consolidated financial statements as of and for the three- and six-month periods ended June 30, 2015 and 2014.

Cash and Cash Equivalents

Cash and cash equivalents primarily consist of certificates of deposit and time deposits, with original maturities of three months or less, and money market funds. The estimated fair value of the Company's cash and cash equivalents approximates their carrying value. The Company is required to maintain operating funds of approximately $198 million related to regulatory requirements outside the U.S. or as collateral under captive insurance arrangements.

Investments

The Company holds investments in private companies and private equity funds. Investments in private equity funds are accounted for under the equity method of accounting using a consistently applied three-month lag period adjusted for any known significant changes from the lag period to the reporting date of the Company. The underlying private equity funds follow investment company accounting, where investments within the fund are carried at fair value. The Company records in earnings, investment gains/losses for its proportionate share of the change in fair value of the funds. Investments using the equity method of accounting are included in other assets in the consolidated balance sheets.

The caption "Investment income (loss)" in the consolidated statements of income comprises realized and unrealized gains and losses from investments recognized in current earnings. It includes, when applicable, other than temporary declines in the value of debt and available for sale securities and the change in value of the Company’s holdings in certain private equity funds, including equity method gains (losses) on its investment in the Trident funds. The Company’s investments may include direct investments in insurance or consulting companies and investments in private equity funds. The Company recorded investment income of $3 million in the second quarter of 2015 compared to an investment loss of $2 million for the same period in 2014, and investment income of $5 million and $11 million for the six months ended June 30, 2015 and 2014, respectively. Investment income for the six months ended June 30, 2014 included $7 million related to performance fees from its investment in Trident III.

Income Taxes

The Company's effective tax rate in the second quarter of 2015 was 27.9% compared with 27.6% in the second quarter of 2014. The effective tax rate for the first six months of 2015 and 2014 was 28.6%. These rates reflect non-U.S. income taxed at rates below the U.S. statutory rate, including the effect of repatriation, as well as the impact of discrete tax matters such as tax legislation, changes in valuation allowances, the resolution of tax examinations and expirations of statutes of limitations.

The Company is routinely examined by tax authorities in the jurisdictions in which it has significant operations. The Company regularly considers the likelihood of assessments in each of the taxing jurisdictions resulting from examinations. When evaluating the potential imposition of penalties, the Company considers a number of relevant factors under penalty statutes, including appropriate disclosure of the tax return position, the existence of legal authority supporting the Company's position, and reliance on the opinion of professional tax advisors.

During the second quarter of 2015, the Company settled a U.S. federal tax audit with the IRS for the year 2013 and in the second quarter of 2014, settled a U.S. federal tax audit with the IRS for the year 2012.

The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in tax returns. The Company's gross unrecognized tax benefits increased from

$97 million at December 31, 2014 to $100 million at June 30, 2015. It is reasonably possible that the total amount of unrecognized tax benefits will decrease between zero and approximately $24 million within the next twelve months due to settlements of audits and expirations of statutes of limitation.

XML

Debt (Narrative) (Details) - USD ($)		1 Months Ended					3 Months Ended	6 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Oct. 31, 2014	Sep. 30, 2014	May. 31, 2014	Dec. 31, 2012	Dec. 31, 2014	Jun. 30, 2015	Jun. 30, 2014
Debt Instrument [Line Items]
Cash outflow on redemption of debt								$ 5,000,000	$ 5,000,000
Senior Debt Obligations Due 2020 [Member]
Debt Instrument [Line Items]
Proceeds from issuance of debt		$ 500,000,000
Interest rate	2.35%	2.35%						2.35%
Term of debt		5 years
2.35% Senior Debt Obligations Due 2019 [Member]
Debt Instrument [Line Items]
Proceeds from issuance of debt				$ 300,000,000
Interest rate	2.35%			2.35%				2.35%
Term of debt				5 years
3.50% Senior Debt Obligations Due 2025 [Member]
Debt Instrument [Line Items]
Proceeds from issuance of debt				$ 500,000,000
Interest rate	3.50%			3.50%				3.50%
Term of debt				10 years 6 months
Senior Debt Obligations Due 2019 [Member]
Debt Instrument [Line Items]
Interest rate	9.25%							9.25%
Senior Debt Obligations Due 2024 [Member]
Debt Instrument [Line Items]
Proceeds from issuance of debt					$ 600,000,000
Interest rate	3.50%				3.50%			3.50%
Term of debt					10 years
Senior Debt Obligations Due 2014 [Member]
Debt Instrument [Line Items]
Interest rate					5.375%
Senior Debt Obligations Due 2023 [Member]
Debt Instrument [Line Items]
Interest rate	4.05%							4.05%
Amended Revolving Credit Facility March 27, 2014 [Member]
Debt Instrument [Line Items]
Term of debt	5 years
Debt facilities, maximum borrowing capacity	$ 1,200,000,000							$ 1,200,000,000
Revolving credit facility, amount outstanding	0							0
Term Loan Facility - due 2016
Debt Instrument [Line Items]
Term of debt						3 years
Debt facilities, maximum borrowing capacity						$ 50,000,000
Revolving credit facility, amount outstanding	$ 50,000,000							$ 50,000,000
Interest rate on three-year draw term loan facility	1.19%							1.19%
Senior Debt Obligations Due 2015 and Senior Debt Obligations Due 2019 [Member]
Debt Instrument [Line Items]
Debt partial redemption amount			$ 630,000,000
Cash outflow on redemption of debt			$ 765,000,000
Cost for early redemption							$ 137,000,000
Senior Debt Obligations Due 2019 [Member]
Debt Instrument [Line Items]
Interest rate			9.25%
Debt partial redemption amount			$ 400,000,000
Senior Debt Obligations Due 2014 [Member]
Debt Instrument [Line Items]
Cash outflow on redemption of debt					$ 320,000,000
Senior Debt Obligations Due 2015 [Member]
Debt Instrument [Line Items]
Interest rate			5.75%
Debt partial redemption amount			$ 230,000,000
Commercial Paper [Member]
Debt Instrument [Line Items]
Commercial paper	$ 50,000,000						$ 0	$ 50,000,000
Weighted average interest rate	0.54%							0.54%

XML

Supplemental Disclosures to the Consolidated Statements of Cash Flows (Tables)

6 Months Ended

Jun. 30, 2015

Supplemental Cash Flow Information [Abstract]

Additional Information Concerning Acquisitions, Interest and Income Taxes Paid

The following schedule provides additional information concerning acquisitions, interest and income taxes paid for the six-month periods ended June 30, 2015 and 2014.

(In millions of dollars)	2015			2014
Assets acquired, excluding cash	$	338		$	554
Liabilities assumed	(12		)	(40		)
Contingent/deferred purchase consideration	(95		)	(140		)
Net cash outflow for current year acquisitions	$	231		$	374
Cash paid into escrow for future acquisition	29			—
Net cash outflow for acquisitions	$	260		$	374

(In millions of dollars)	2015		2014
Interest paid	$	69	$	82
Income taxes paid	$	223	$	218

XML

Principles of Consolidation and Other Matters - Investment Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Deferred Revenue Arrangement [Line Items]
Effective tax rate	27.90%	27.60%	28.60%	28.60%
Investment income (loss)	$ 3	$ (2)	$ 5	$ 11
Trident III [Member] | Private Equity Funds [Member]
Deferred Revenue Arrangement [Line Items]
Recognition of Deferred Revenue				$ 7

XML

Restructuring Costs

6 Months Ended

Jun. 30, 2015

Restructuring and Related Activities [Abstract]

Restructuring Costs

Restructuring Costs

The Company recorded total restructuring costs of $5 million in the first six months of 2015, primarily for future severance and rent under non-cancelable leases. These costs were incurred in Risk and Insurance services ($2 million) and in Corporate ($3 million).

Details of the restructuring activity from January 1, 2014 through June 30, 2015, which includes liabilities from actions prior to 2015, are as follows:

(In millions of dollars)	Liability at 1/1/14		Amounts Accrued		Cash Paid			Other			Liability at 12/31/14		Amounts Accrued		Cash Paid			Liability at 6/30/15
Severance	$	11	$	4	$	(8	)	$	—		$	7	$	2	$	(4	)	$	5
Future rent under non-cancelable leases and other costs	113		8		(35		)	(1		)	85		3		(8		)	80
Total	$	124	$	12	$	(43	)	$	(1	)	$	92	$	5	$	(12	)	$	85

The expenses associated with the above initiatives are included in compensation and benefits and other operating expenses in the consolidated statements of income. The liabilities associated with these initiatives are classified on the consolidated balance sheets as accounts payable, other liabilities, or accrued compensation, depending on the nature of the items.