10-Q

UNITED STATES

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 SEPTEMBER 30, 2014

_____________________________

Commission File Number: 1-10551

______________________________

OMNICOM GROUP INC.

(Exact name of registrant as specified in its charter)

New York	13-1514814
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification No.)
437 Madison Avenue, New York, New York	10022
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (212) 415-3600

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

_____________________________

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  þ No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes  þ No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company.

Large accelerated filer þ Accelerated filer o Non-accelerated filer o Smaller reporting company o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes  o No þ

________________________

As of October 15, 2014, there were 248,179,673 shares of Omnicom Group Inc. Common Stock outstanding.

OMNICOM GROUP INC.

QUARTERLY REPORT ON FORM 10-Q FOR THE QUARTER ENDED SEPTEMBER 30, 2014

TABLE OF CONTENTS

		Page
PART I.	FINANCIAL INFORMATION
Item 1.	Financial Statements
	Condensed Consolidated Balance Sheets - September 30, 2014 and December 31, 2013	1
	Condensed Consolidated Statements of Income - Three and nine months ended September 30, 2014 and 2013	2
	Condensed Consolidated Statements of Comprehensive Income - Three and nine months ended September 30, 2014 and 2013	3
	Condensed Consolidated Statements of Cash Flows - Nine months ended September 30, 2014 and 2013	4
	Notes to Condensed Consolidated Financial Statements	5
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	14
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	30
Item 4.	Controls and Procedures	30
PART II.	OTHER INFORMATION
Item 1.	Legal Proceedings	31
Item 1A.	Risk Factors	31
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	31
Item 6.	Exhibits	31
SIGNATURES		32

FOWARD-LOOKING STATEMENTS

Certain statements in this Quarterly Report on Form 10-Q constitute forward-looking statements, including statements within the meaning of the Private Securities Litigation Reform Act of 1995. In addition, from time to time, the Company or its representatives have made or may make forward-looking statements, orally or in writing. These statements may discuss goals, intentions and expectations as to future plans, trends, events, results of operations or financial condition, or otherwise, based on current beliefs of the Company’s management as well as assumptions made by, and information currently available to the Company’s management. Forward-looking statements may be accompanied by words such as “aim,” “anticipate,” “believe,” “plan,” “could,” “would,” “should,” “estimate,” “expect,” “forecast,” “future,” “guidance,” “intend,” “may,” “will,” “possible,” “potential,” “predict,” “project” or similar words, phrases or expressions. These forward-looking statements are subject to various risks and uncertainties, many of which are outside the Company’s control. Therefore, you should not place undue reliance on such statements. Factors that could cause actual results to differ materially from those in the forward-looking statements include international, national or local economic, social or political conditions that could adversely affect the Company or its clients; losses on media purchases and production costs incurred on behalf of clients; reductions in client spending, a slowdown in client payments and changes in client communications requirements; failure to manage potential conflicts of interest between or among clients; unanticipated changes relating to competitive factors in the advertising, marketing and corporate communications industries; ability to hire and retain key personnel; ability to attract new clients and retain existing clients in the manner anticipated; reliance on information technology systems; changes in legislation or governmental regulations affecting the Company or its clients; conditions in the credit markets; risks associated with assumptions the Company makes in connection with its critical accounting estimates and legal proceedings; and the Company’s international operations, which are subject to the risks of currency fluctuation and currency repatriation restrictions. The foregoing list of factors is not exhaustive. You should carefully consider the foregoing factors and the other risks and uncertainties that affect the Company’s business, including those described in the “Risk Factors” in Omnicom's Annual Report on Form 10-K, Current Reports on Form 8-K and other documents filed from time to time with the SEC. Except as required under applicable law, the Company does not assume any obligation to update these forward-looking statements.

PART I. FINANCIAL INFORMATION

ITEM 1. Financial Statements

OMNICOM GROUP INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(In millions)

	September 30, 2014			December 31, 2013
	(Unaudited)
ASSETS
Current Assets:
Cash and cash equivalents	$	837.7		$	2,710.5
Short-term investments, at cost	12.6			18.2
Accounts receivable, net of allowance for doubtful accounts of $28.6 and $32.6	6,135.7			6,632.6
Work in process	1,528.0			1,288.0
Other current assets	1,053.2			1,003.0
Total Current Assets	9,567.2			11,652.3
Property and Equipment at cost, less accumulated depreciation of $1,257.9 and $1,230.1	713.6			737.4
Equity Method Investments	153.6			131.8
Goodwill	8,875.2			8,916.0
Intangible Assets, net of accumulated amortization of $603.6 and $552.3	387.0			386.0
Other Assets	272.0			275.2
TOTAL ASSETS	$	19,968.6		$	22,098.7
LIABILITIES AND EQUITY
Current Liabilities:
Accounts payable	$	7,448.6		$	8,358.9
Customer advances	1,130.6			1,242.2
Current portion of debt	0.3			0.4
Short-term borrowings	31.3			5.9
Taxes payable	275.7			293.3
Other current liabilities	2,188.8			2,377.0
Total Current Liabilities	11,075.3			12,277.7
Long-Term Notes Payable	3,778.9			3,780.7
Convertible Debt	—			252.7
Long-Term Liabilities	680.0			685.1
Long-Term Deferred Tax Liabilities	732.8			832.6
Commitments and Contingent Liabilities (See Note 12)
Temporary Equity - Redeemable Noncontrolling Interests	190.2			202.0
Equity:
Shareholders’ Equity:
Preferred stock	—			—
Common stock	59.6			59.6
Additional paid-in capital	842.6			817.1
Retained earnings	9,373.6			8,961.2
Accumulated other comprehensive income (loss)	(420.1		)	(191.6		)
Treasury stock, at cost	(6,817.4		)	(6,063.9		)
Total Shareholders’ Equity	3,038.3			3,582.4
Noncontrolling interests	473.1			485.5
Total Equity	3,511.4			4,067.9
TOTAL LIABILITIES AND EQUITY	$	19,968.6		$	22,098.7

The accompanying notes to the condensed consolidated financial statements are an integral part of these statements.

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OMNICOM GROUP INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(In millions, except per share amounts)

(Unaudited)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
Revenue	$	3,749.6		$	3,490.5		$	11,122.7		$	10,526.4
Operating Expenses	3,316.0			3,111.1			9,758.0			9,252.2
Operating Income	433.6			379.4			1,364.7			1,274.2
Interest Expense	42.2			50.5			135.4			148.8
Interest Income	10.8			7.7			31.3			24.2
Income Before Income Taxes and Income From Equity     Method Investments	402.2			336.6			1,260.6			1,149.6
Income Tax Expense	134.4			116.2			410.9			388.9
Income From Equity Method Investments	5.8			4.3			10.4			10.5
Net Income	273.6			224.7			860.1			771.2
Net Income Attributed To Noncontrolling Interests	(29.8		)	(28.7		)	(85.6		)	(80.5		)
Net Income - Omnicom Group Inc.	$	243.8		$	196.0		$	774.5		$	690.7
Net Income Per Share - Omnicom Group Inc.:
Basic	$	0.95		$	0.74		$	2.97		$	2.60
Diluted	$	0.95		$	0.74		$	2.95		$	2.58
Dividends Declared Per Common Share	$	0.50		$	0.40		$	1.40		$	1.20

The accompanying notes to the condensed consolidated financial statements are an integral part of these statements.

2

OMNICOM GROUP INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(In millions)

(Unaudited)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
Net Income	$	273.6		$	224.7		$	860.1		$	771.2
Unrealized gain (loss) on available-for-sale securities, net of income taxes of $0.2 and $0.2 for the nine months ended September 30, 2014 and 2013, respectively	0.1			—			0.3			0.3
Foreign currency translation adjustment, net of income taxes of ($181.7) and $94.4 for the three months and ($128.4) and ($63.6) for the nine months ended September 30, 2014 and 2013, respectively	(352.6		)	183.4			(249.3		)	(123.3		)
Defined benefit pension and postemployment plans adjustment, net of income taxes of $0.9 and $0.7 for the three months and $2.7 and $3.1 for the nine months ended September 30, 2014 and 2013, respectively	1.3			1.1			4.1			4.5
Other Comprehensive Income (Loss)	(351.2		)	184.5			(244.9		)	(118.5		)
Comprehensive Income	(77.6		)	409.2			615.2			652.7
Comprehensive Income Attributed to Noncontrolling Interests	(2.2		)	(36.4		)	(69.2		)	(53.1		)
Comprehensive Income - Omnicom Group Inc.	$	(79.8	)	$	372.8		$	546.0		$	599.6

The accompanying notes to the condensed consolidated financial statements are an integral part of these statements.

3

OMNICOM GROUP INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In millions)

(Unaudited)

	Nine Months Ended September 30,
	2014			2013
Cash Flows from Operating Activities:
Net income	$	860.1		$	771.2
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	140.3			136.6
Amortization of intangible assets	77.1			76.3
Amortization of deferred gain from termination of interest rate swaps	(5.4		)	(5.5		)
Income from equity method investments, net of dividends received	(0.3		)	0.4
Provision for doubtful accounts	3.9			4.4
Share-based compensation	69.5			64.9
Excess tax benefit from share-based compensation	(20.2		)	(34.2		)
Change in operating capital	(1,091.9		)	(654.2		)
Net Cash Provided By Operating Activities	33.1			359.9
Cash Flows from Investing Activities:
Payments to acquire property and equipment	(138.3		)	(123.3		)
Payments to acquire businesses and interests in affiliates, net of cash acquired	(65.3		)	(26.5		)
Proceeds from investments, net	6.5			17.3
Net Cash Used In Investing Activities	(197.1		)	(132.5		)
Cash Flows from Financing Activities:
Proceeds from short-term debt	27.3			12.5
Redemption of convertible debt	(252.7		)	(406.7		)
Payments of dividends	(340.7		)	(212.6		)
Payments for repurchases of common stock	(864.8		)	(571.3		)
Proceeds from stock plans	14.6			44.8
Payments for acquisition of additional noncontrolling interests	(22.0		)	(11.0		)
Payments of dividends to noncontrolling interest shareholders	(83.2		)	(81.1		)
Payments of contingent purchase price obligations	(74.5		)	(68.9		)
Excess tax benefit on share-based compensation	20.2			34.2
Other, net	(21.7		)	(24.2		)
Net Cash Used In Financing Activities	(1,597.5		)	(1,284.3		)
Effect of foreign exchange rate changes on cash and cash equivalents	(111.3		)	(99.9		)
Net Decrease in Cash and Cash Equivalents	(1,872.8		)	(1,156.8		)
Cash and Cash Equivalents at the Beginning of Period	2,710.5			2,678.3
Cash and Cash Equivalents at the End of Period	$	837.7		$	1,521.5

The accompanying notes to the condensed consolidated financial statements are an integral part of these statements.

4

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1. Presentation of Financial Statements

The terms “Omnicom,” the “Company,” “we,” “our” and “us” each refer to Omnicom Group Inc. and our subsidiaries, unless the context indicates otherwise. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“U.S. GAAP” or “GAAP”) for interim financial information and Article 10 of Regulation S-X of the Securities and Exchange Commission. Accordingly, certain information and footnote disclosure have been condensed or omitted.

In our opinion, the accompanying unaudited condensed consolidated financial statements reflect all adjustments, consisting of normal recurring accruals, considered necessary for a fair presentation, in all material respects, of the information contained herein. These unaudited condensed consolidated financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2013 (“2013 10-K”). Results for the interim periods are not necessarily indicative of results that may be expected for the year.

2. New Accounting Standards

On January 1, 2014, we adopted FASB ASU 2013-05, Foreign Currency Matters (Topic 830): Parent's Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity (“ASU 2013-05”). Under ASU 2013-05 when a parent sells an investment in a foreign entity and ceases to have a controlling interest in that foreign entity, or a foreign subsidiary disposes of substantially all of its assets, or control of a foreign entity is obtained in which it held an equity interest before the acquisition date, the cumulative translation adjustment should be released into net income. The adoption of ASU 2013-05 did not have a significant impact on our results of operations or financial position.

On January 1, 2014, we adopted FASB ASU 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (“ASU 2013-11”). ASU 2013-11 eliminates a diversity in practice regarding the presentation of an unrecognized tax benefit when a net operating loss carryforward or a tax credit carryforward exists. The adoption of ASU 2013-11 did not have a significant impact on the presentation of our results of operations or financial position.

In May 2014 the FASB issued FASB ASU 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”). ASU 2014-09 will be effective for fiscal years and interim periods beginning after December 15, 2016 and early application is not permitted. ASU 2014-09 provides for one of two methods of transition: retrospective application to each prior period presented; or, recognition of the cumulative effect of retrospective application of the new standard in the period of initial application. We will apply ASU 2014-09 on January 1, 2017. However, we are not yet in a position to assess the transition method we will choose, or the impact of the application on our results of operations or financial position.

In August 2014 the FASB issued FASB ASU 2014-15, Presentation of Financial Statements - Going Concern (“ASU 2014-15”).ASU 2014-15 will be effective for fiscal years and interim periods beginning after December 15, 2016 and early application is permitted. ASU 2014-15 requires that management evaluate at each annual and interim reporting period whether there is a substantial doubt about an entity’s ability to continue as a going concern within one year of the date that the financial statements are issued. We do not expect that the application of ASU 2014-15 will have an impact on the presentation of our results of operations, financial position or disclosures.

5

3. Net Income per Common Share

The computation of basic and diluted net income per common share for the three and nine months ended September 30, 2014 and 2013 is (in millions, except per share amounts):

	Three Months						Nine Months
	2014			2013			2014			2013
Net Income Available for Common Shares:
Net income - Omnicom Group Inc.	$	243.8		$	196.0		$	774.5		$	690.7
Net income allocated to participating securities	(4.3		)	(4.8		)	(14.7		)	(18.1		)
	$	239.5		$	191.2		$	759.8		$	672.6
Weighted Average Shares:
Basic	251.4			258.2			255.6			259.0
Dilutive stock options, restricted shares and shares issuable for the conversion premium of convertible debt	1.0			1.7			1.7			1.4
Diluted	252.4			259.9			257.3			260.4
Anti-dilutive stock options and restricted shares	—			—			—			0.1
Net Income per Common Share - Omnicom Group Inc.:
Basic	$	0.95		$	0.74		$	2.97		$	2.60
Diluted	$	0.95		$	0.74		$	2.95		$	2.58

4. Goodwill and Intangible Assets

Goodwill and intangible assets at September 30, 2014 and December 31, 2013 were (in millions):

	2014						2013
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Goodwill	$	9,443.8	$	568.6	$	8,875.2	$	9,502.6	$	586.6	$	8,916.0
Intangible assets:
Purchased and internally developed software	$	296.2	$	224.6	$	71.6	$	283.2	$	217.4	$	65.8
Customer related and other	694.4		379.0		315.4		655.1		334.9		320.2
	$	990.6	$	603.6	$	387.0	$	938.3	$	552.3	$	386.0

We evaluate goodwill for impairment at least annually at the end of the second quarter of the year and whenever events or circumstances indicate the carrying value may not be recoverable. At June 30, 2014, we performed Step 1 of the annual impairment test and compared the fair value of each of our reporting units to its respective carrying value, including goodwill. Based on the results of our impairment test, we concluded that our goodwill was not impaired at June 30, 2014 because the fair value of each of our reporting units was substantially in excess of their respective net book value.

Changes in goodwill for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014			2013
January 1	$	8,916.0		$	8,844.2
Acquisitions	131.4			55.5
Dispositions	(1.6		)	(8.5		)
Foreign currency translation	(170.6		)	(22.2		)
September 30	$	8,875.2		$	8,869.0

There were no goodwill impairment losses recorded in the first nine months of 2014 or 2013 and there are no accumulated goodwill impairment losses. Goodwill for acquisitions completed in 2014 and 2013 includes $27.6 million and $9.2 million, respectively, of goodwill attributed to noncontrolling interests in the acquired businesses.

6

5. Debt

Lines of Credit

On July 31, 2014, we amended our $2.5 billion line of credit (“Credit Agreement”) to extend the term to July 31, 2019. We have the ability to classify borrowings under the Credit Agreement as long-term. In addition, we can issue up to $2.0 billion of commercial paper. At September 30, 2014 and December 31, 2013 there were no outstanding commercial paper issuances or borrowings under the Credit Agreement. We also have uncommitted lines of credit aggregating $950.7 million and $1,051.5 million at September 30, 2014 and December 31, 2013, respectively.

Available and unused lines of credit at September 30, 2014 and December 31, 2013 were (in millions):

	2014		2013
Credit Agreement	$	2,500.0	$	2,500.0
Uncommitted lines of credit	950.7		1,051.5
Available and unused lines of credit	$	3,450.7	$	3,551.5

The Credit Agreement contains financial covenants that require us to maintain a Leverage Ratio of consolidated indebtedness to consolidated EBITDA of no more than 3 times for the most recently ended 12-month period (under the Credit Agreement, EBITDA is defined as earnings before interest, taxes, depreciation and amortization) and an Interest Coverage Ratio of consolidated EBITDA to interest expense of at least 5 times for the most recently ended 12-month period.At September 30, 2014, we were in compliance with these covenants, as our Leverage Ratio was 1.7 times and our Interest Coverage Ratio was 12 times. The Credit Agreement does not limit our ability to declare or pay dividends.

Short-Term Borrowings

Short-term borrowings of $31.3 million and $5.9 million at September 30, 2014 and December 31, 2013, respectively, represent bank overdrafts and credit lines of our international subsidiaries. The bank overdrafts and credit lines are treated as unsecured loans pursuant to the agreements supporting the facilities. Due to the short-term nature of these instruments, carrying value approximates fair value.

Long-Term Notes Payable

Long-term notes payable at September 30, 2014 and December 31, 2013 were (in millions):

	2014		2013
5.9% Senior Notes due April 15, 2016	$	1,000.0	$	1,000.0
6.25% Senior Notes due July 15, 2019	500.0		500.0
4.45% Senior Notes due August 15, 2020	1,000.0		1,000.0
3.625% Senior Notes due May 1, 2022	1,250.0		1,250.0
Other notes and loans	0.3		0.5
	3,750.3		3,750.5
Unamortized premium (discount) on Senior Notes, net	13.8		14.7
Adjustment to carrying value for interest rate swaps	15.1		15.9
	3,779.2		3,781.1
Less current portion	0.3		0.4
Long-term notes payable	$	3,778.9	$	3,780.7

On May 1, 2014, we entered into an interest rate swap on the $1.25 billion principal amount of our 3.625% Senior Notes due May 1, 2022 (“2022 Notes”) and on September 29, 2014, we entered into an interest rate swap on the $1 billion principal amount of our 4.45% Senior Notes due August 15, 2020 (“2020 Notes”). The interest rate swaps hedge the risk of changes in fair value of the 2022 Notes and the 2020 Notes attributable to changes in the benchmark LIBOR interest rate. Under the terms of the swaps, we receive fixed interest rate payments and pay a variable interest rate, based on LIBOR, on the total principal amount of the 2022 Notes and the 2020 Notes, respectively. The swaps qualify as a hedge for accounting purposes and were designated as a fair value hedge on the 2022 Notes and 2020 Notes, respectively. The swaps have the economic effect of converting the 2022 Notes and the 2020 Notes from fixed rate debt to floating rate debt. Gains and losses attributed to changes in the fair value of the interest rate swaps substantially offset changes in the fair value of the 2022 Notes and the 2020 Notes, respectively, attributed to changes in the benchmark interest rate. The net interest settlement is recorded in interest expense.

7

Convertible Debt

At September 30, 2014, there was no convertible debt outstanding. Convertible debt outstanding at December 31, 2013 was comprised of our $252.7 million Convertible Notes due July 31, 2032 (“2032 Notes”).

On June 5, 2014, we called the 2032 Notes for redemption on July 31, 2014 at a redemption price of 100% of the principal amount of the notes. As provided in the indenture governing the 2032 Notes, prior to July 29, 2014, the noteholders had the right to convert their notes into shares of our common stock at a conversion rate of 18.463 shares per $1,000 principal amount. Substantially all noteholders exercised their conversion right. We paid $252.7 million in cash representing the principal amount of the notes that were converted and issued 1,217,112 shares of our common stock to satisfy the conversion premium. On July 31, 2014, we redeemed any 2032 Notes that were not converted.

6. Segment Reporting

Our wholly and partially owned agencies operate within the advertising, marketing and corporate communications services industry. These agencies are organized into agency networks, virtual client networks, regional reporting units and operating groups. Consistent with our fundamental business strategy, our agencies serve similar clients, in similar industries and, in many cases, the same clients across a variety of geographic regions. In addition, our agency networks have similar economic characteristics including similar costs and long-term profit contribution. The main economic components of each agency are employee compensation and related costs and direct service costs and office and general costs, which include rent and occupancy costs, technology costs and other overhead expenses. Therefore, given these similarities, we aggregate our operating segments, which are our five agency networks, into one reporting segment.

Revenue and long-lived assets and goodwill by geographic area as of and for the periods ended September 30, 2014 and 2013 were (in millions):

	Americas		EMEA		Asia Pacific
2014
Revenue - Three months ended	$	2,227.0	$	1,117.5	$	405.1
Revenue - Nine months ended	6,608.4		3,348.6		1,165.7
Long-lived assets and goodwill	6,103.9		2,902.1		582.8
2013
Revenue - Three months ended	$	2,054.4	$	1,050.8	$	385.3
Revenue - Nine months ended	6,252.3		3,138.5		1,135.6
Long-lived assets and goodwill	6,072.4		2,906.1		592.1

The Americas is composed of North America, which includes the United States, Canada and Puerto Rico, and Latin America, which includes Mexico. EMEA is composed of various Euro currency countries, the United Kingdom, other European countries that have not adopted the European Union Monetary standard, the Middle East and Africa. Asia Pacific is composed of Australia, China, India, Japan, Korea, New Zealand, Singapore and other Asian countries.

7. Termination of Business Combination Agreement

On May 8, 2014, the Company and Publicis Groupe S.A. (“Publicis”) entered into a termination agreement (“Termination Agreement”) under which the Company and Publicis mutually agreed to terminate their proposed merger in view of difficulties in completing the transaction within a reasonable timeframe.

Under the Termination Agreement, the Company and Publicis mutually consented to terminate their Business Combination Agreement, dated July 27, 2013 (“Business Combination Agreement”), governing the proposed combination of the parties’ respective businesses, and mutually agreed to release each other from all claims, obligations and liabilities arising out of, in connection with or relating to the Business Combination Agreement. The Termination Agreement provided that no termination fee was payable by either party.

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8. Income Taxes

The effective tax rate for the nine months ended September 30, 2014 reflects the recognition of an income tax benefit of $11.4 million related to previously incurred expenses for the proposed merger with Publicis. On May 8, 2014, the proposed merger with Publicis was terminated. Prior to the termination of the proposed merger, the majority of the merger costs were capitalized for income tax purposes and the related tax benefits were not recorded. Because the proposed merger was terminated, the merger costs were no longer required to be capitalized for income tax purposes.

In connection with the conversion of the 2032 Notes (see Note 5), we reclassified $66.2 million, representing the excess of the accreted value of the notes for income tax purposes over the conversion value, from long-term deferred tax liability to current taxes payable. In addition, we reclassified $32.2 million, representing the difference between the issue price of the notes and the conversion value, from long-term deferred tax liability to additional paid-in capital.

At September 30, 2014, our unrecognized tax benefits were $139.3 million. Of this amount, approximately $58.5 million would affect our effective tax rate upon resolution of the uncertain tax positions.

9. Pension and Other Postemployment Benefits

Net periodic benefit cost is included in the salary and service costs component of operating expenses.

Defined Benefit Pension Plans

The components of net periodic benefit cost for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014			2013
Service cost	$	5.5		$	3.3
Interest cost	5.5			4.6
Expected return on plan assets	(2.2		)	(2.1		)
Amortization of prior service cost	3.2			2.7
Amortization of actuarial (gains) losses	1.4			2.4
	$	13.4		$	10.9

We contributed $0.7 million and $3.1 million to our defined benefit pension plans in the nine months ended September 30, 2014 and 2013, respectively.

Postemployment Arrangements

The components of net periodic benefit cost for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014		2013
Service cost	$	3.0	$	3.0
Interest cost	3.3		3.3
Amortization of prior service cost	1.6		1.5
Amortization of actuarial (gains) losses	0.6		1.0
	$	8.5	$	8.8

9

10. Operating Expenses

Operating expenses for the three and nine months ended September 30, 2014 and 2013 were (in millions):

	Three Months				Nine Months
	2014		2013		2014		2013
Salary and service costs	$	2,813.2	$	2,585.2	$	8,230.7	$	7,733.3
Office and general expenses	502.8		497.8		1,518.5		1,490.8
Merger expenses	—		28.1		8.8		28.1
	$	3,316.0	$	3,111.1	$	9,758.0	$	9,252.2

For the nine months ended September 30, 2014 and 2013, we incurred $8.8 million and $28.1 million, respectively, of expenses in connection with the proposed merger with Publicis, which were primarily comprised of professional fees. On May 8, 2014, the proposed merger with Publicis was terminated.

11. Supplemental Cash Flow Data

The change in operating capital for the nine months ended September 30, 2014 and 2013 was (in millions):

	2014			2013
(Increase) decrease in accounts receivable	$	333.4		$	294.0
(Increase) decrease in work in process and other current assets	(333.5		)	(392.8		)
Increase (decrease) in accounts payable	(738.6		)	(668.9		)
Increase (decrease) in customer advances and other current liabilities	(237.7		)	97.6
Change in other assets and liabilities, net	(115.5		)	15.9
	$	(1,091.9	)	$	(654.2	)
Income taxes paid	$	420.9		$	335.2
Interest paid	$	147.1		$	134.8

In connection with the conversion of the 2032 Notes in July 2014 (see Note 5), we issued 1,217,112 shares of our common stock to satisfy the conversion premium. Based on the closing prices of our common stock on the settlement dates, these issuances resulted in a non-cash pre-tax financing activity of $89.2 million, excluding the cash tax benefit of $32.2 million.

12. Commitments and Contingent Liabilities

In August 2013, several putative class actions challenging the proposed merger of Omnicom and Publicis were filed on behalf of Omnicom shareholders and named as defendants Omnicom and its board of directors, as well as Publicis and Publicis Omnicom Group. The suits alleged that the members of the Omnicom board breached their fiduciary duties by, among other things, approving a merger that was purportedly detrimental to Omnicom’s shareholders. The actions also alleged that Publicis aided and abetted the Omnicom board’s breach of their fiduciary duties. In October 2013, all the actions were consolidated with each other into one case. On May 8, 2014, the proposed merger of Omnicom and Publicis was terminated. On May 22, 2014, a stipulation of voluntary discontinuance was submitted to the Court. The Court so-ordered the stipulation and dismissed the case on May 23, 2014.

In the ordinary course of business, we are involved in various other legal proceedings. We do not presently expect that these other proceedings will have a material adverse effect on our results of operations or financial position.

10

13. Fair Value

Financial assets and liabilities measured at fair value on a recurring basis at September 30, 2014 and December 31, 2013 were (in millions):

2014	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents	$	837.7					$	837.7
Short-term investments	12.6						12.6
Available-for-sale securities	5.2						5.2
Foreign currency and interest rate derivative instruments			$	5.4			5.4
Liabilities:
Foreign currency derivative instruments			$	2.1			$	2.1
Contingent purchase price obligations					$	241.0	241.0

2013	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents	$	2,710.5					$	2,710.5
Short-term investments	18.2						18.2
Available-for-sale securities	4.9						4.9
Foreign currency derivative instruments			$	2.2			2.2
Liabilities:
Foreign currency derivative instruments			$	0.1			$	0.1
Contingent interest derivative			2.1				2.1
Contingent purchase price obligations					$	220.2	220.2

The changes in Level 3 contingent purchase price obligations for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014			2013
January 1	$	220.2		$	266.2
Acquisitions	103.1			34.8
Revaluation and interest	0.1			(9.5		)
Payments	(74.5		)	(68.9		)
Foreign currency translation	(7.9		)	(9.3		)
September 30	$	241.0		$	213.3

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The carrying amount and fair value of our financial instruments at September 30, 2014 and December 31, 2013 were (in millions):

	2014				2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents	$	837.7	$	837.7	$	2,710.5	$	2,710.5
Short-term investments	12.6		12.6		18.2		18.2
Available-for-sale securities	5.2		5.2		4.9		4.9
Foreign currency and interest rate derivative instruments	5.4		5.4		2.2		2.2
Cost method investments	23.2		23.2		22.2		22.2
Liabilities:
Short-term borrowings	$	31.3	$	31.3	$	5.9	$	5.9
Foreign currency derivative instruments	2.1		2.1		0.1		0.1
Contingent interest derivative	—		—		2.1		2.1
Contingent purchase price obligations	241.0		241.0		220.2		220.2
Debt	3,779.2		3,982.6		4,033.8		4,302.7

The estimated fair value of the foreign currency and interest rate derivative instruments is determined using model-derived valuations, taking into consideration foreign currency rates for the foreign currency derivatives and readily observable inputs for LIBOR interest rates and yield curves to derive the present value of the future cash flows for the interest rate swap derivatives and counterparty credit risk for each. The estimated fair value of the contingent purchase price obligations is calculated in accordance with the terms of each acquisition agreement and is discounted. The fair value of debt is based on quoted market prices.

14. Changes in Accumulated Other Comprehensive Income (Loss)

The changes in accumulated other comprehensive income (loss) for the nine months ended September 30, 2014 and 2013 were (in millions):

	Unrealized Gain (Loss) on Available-for-Sale Securities			Defined Benefit Pension and Postemployment Plans			Foreign Currency Translation			Total
January 1, 2014	$	(1.6	)	$	(68.8	)	$	(121.2	)	$	(191.6	)
Other comprehensive income (loss) before reclassifications	0.3			—			(232.9		)	(232.6		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			4.1			—			4.1
Other comprehensive income (loss)	0.3			4.1			(232.9		)	(228.5		)
September 30, 2014	$	(1.3	)	$	(64.7	)	$	(354.1	)	$	(420.1	)

	Unrealized Gain (Loss) on Available-for-Sale Securities			Defined Benefit Pension and Postemployment Plans			Foreign Currency Translation			Total
January 1, 2013	$	(2.0	)	$	(89.8	)	$	(37.7	)	$	(129.5	)
Other comprehensive income (loss) before reclassifications	0.3			—			(95.9		)	(95.6		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			4.5			—			4.5
Other comprehensive income (loss)	0.3			4.5			(95.9		)	(91.1		)
September 30, 2013	$	(1.7	)	$	(85.3	)	$	(133.6	)	$	(220.6	)

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Reclassifications from accumulated other comprehensive income (loss) for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014		2013
Amortization of defined benefit pension and postemployment plans:
Prior service cost	$	4.8	$	4.2
Actuarial (gains) losses	2.0		3.4
Periodic benefit cost (see Note 9)	6.8		7.6
Income taxes	2.7		3.1
Periodic benefit cost, net of income taxes	$	4.1	$	4.5

15. Subsequent Events

We have evaluated events subsequent to the balance sheet date and determined there have not been any events that have occurred that would require adjustment to or disclosure in the unaudited condensed consolidated financial statements.

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ITEM 2.  Management’s Discussion And Analysis Of Financial Condition And Results Of Operations

TERMINATION OF BUSINESS COMBINATION AGREEMENT

On May 8, 2014, the Company and Publicis Groupe S.A., or Publicis, entered into a termination agreement, or Termination Agreement, under which the Company and Publicis mutually agreed to terminate their proposed merger in view of difficulties in completing the transaction within a reasonable timeframe.

Under the Termination Agreement, the Company and Publicis mutually consented to terminate their Business Combination Agreement, dated July 27, 2013, or Business Combination Agreement, governing the proposed combination of the parties’ respective businesses, and mutually agreed to release each other from all claims, obligations and liabilities arising out of, in connection with or relating to the Business Combination Agreement. The Termination Agreement provided that no termination fee was payable by either party.

EXECUTIVE SUMMARY

We are a strategic holding company. We provide professional services to clients through multiple agencies around the world. On a global, pan-regional and local basis, our agencies provide these services in the following disciplines: advertising, customer relationship management, or CRM, public relations and specialty communications. Our business model was built and continues to evolve around our clients. While our agencies operate under different names and frame their ideas in different disciplines, we organize our services around our clients. The fundamental premise of our business is that our clients’ specific requirements should be the central focus in how we deliver our services and allocate our resources. This client-centric business model results in multiple agencies collaborating in formal and informal virtual networks that cut across internal organizational structures to deliver consistent brand messages for a specific client and execute against each of our clients’ specific marketing requirements. We continually seek to grow our business with our existing clients by maintaining our client-centric approach, as well as expanding our existing business relationships into new markets and with new clients. In addition, we pursue selective acquisitions of complementary companies with strong entrepreneurial management teams that typically currently serve or have the ability to serve our existing client base.

As a leading global advertising, marketing and corporate communications company, we operate in all major markets around the world and have a large and diverse client base. For the nine months ended September 30, 2014, our largest client accounted for 2.7% of our revenue and no other client accounted for more than 2.5% of our revenue. Our top 100 clients accounted for approximately 51% of our revenue for the nine months ended September 30, 2014. Our business is spread across a number of industry sectors with no one industry comprising more than 14% of our revenue for the nine months ended September 30, 2014. Although our revenue is generally balanced between the United States and international markets and we have a large and diverse client base, we are not immune to general economic downturns.

As described in more detail below, in the first nine months of 2014 our revenue increased 5.7% compared to the first nine months of 2013. Revenue increased in the United States and Europe, which was favorably impacted by the weakening of the U.S. Dollar against the British Pound and Euro. Revenue increased moderately in most other markets, but the rate of growth was partially offset by the strengthening of the U.S. Dollar against most currencies in those markets.

Global economic conditions have a direct impact on our business and financial performance. In particular, current global economic conditions pose a risk that our clients may reduce future spending on advertising and marketing services which could reduce the demand for our services. In the first nine months of 2014, the United States experienced modest economic growth and the major economies of Asia and Latin America continued to expand. While economic conditions in the Euro Zone began to stabilize in the second half of 2013, the continuing fiscal issues faced by many countries in the European Union have caused economic difficulty in certain of our Euro Zone markets. We will continue to closely monitor economic conditions, client revenue levels and other factors and, in response to reductions in our client revenue, if necessary, we will take actions available to us to align our cost structure and manage working capital. There can be no assurance whether, or to what extent, our efforts to mitigate any impact of future economic conditions, reductions in our client revenue, changes in client creditworthiness and other developments will be effective.

Certain business trends have had a positive impact on our business and industry. These trends include our clients increasingly expanding the focus of their brand strategies from national markets to pan-regional and global markets and integrating traditional and non-traditional marketing channels, as well as utilizing new communications technologies and emerging digital platforms. Additionally, in an effort to gain greater efficiency and effectiveness from their total marketing budgets, clients continue to require greater coordination of marketing activities. We believe these trends have benefited our business in the past and over the medium and long term will continue to provide a competitive advantage to us.

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In the near term, barring unforeseen events and excluding the impact from changes in foreign exchange rates, as a result of continued improvement in operating performance by many of our agencies and new business activities, we expect our 2014 revenue to increase modestly in excess of the weighted average nominal GDP growth in our major markets. We expect to continue to identify acquisition opportunities intended to build upon the core capabilities of our strategic business platforms, expand our operations in the emerging markets and enhance our capabilities to leverage new technologies that are being used by marketers today.

Given our size and breadth, we manage our business by monitoring several financial indicators. The key indicators that we focus on are revenue and operating expenses. We analyze revenue growth by reviewing the components and mix of the growth, including growth by principal regional market, growth by marketing discipline, impact from foreign currency fluctuations, growth from acquisitions and growth from our largest clients. In recent years, our revenue has been divided almost evenly between our domestic and international operations.

For the quarter ended September 30, 2014, our revenue increased7.4% compared to the quarter ended September 30, 2013. Changes in foreign exchange rates increased revenue 0.4%, acquisitions net of dispositions increased revenue 0.5% and organic growth increased revenue 6.5%. Across our principal regional markets, revenue increased8.6% in North America, 5.8% in Europe and 5.2% in Asia and Latin America. The revenue increase in Europe was the result of growth in the U.K. and the weakening of the U.S. Dollar against the British Pound. Revenue increased in Asia and Latin America, compared to 2013. The change in revenue in the third quarter of 2014 compared to the third quarter of 2013 in our four fundamental disciplines was: advertising increased13.1%, CRM increased2.4%, public relations increased3.3% and specialty communications increased1.2%.

For the nine months ended September 30, 2014, our revenue increased5.7% compared to the nine months ended September 30, 2013. Changes in foreign exchange rates increased revenue 0.2%, acquisitions net of dispositions reduced revenue 0.1% and organic growth increased revenue 5.6%. Across our principal regional markets, revenue increased6.0% in North America, 6.7% in Europe and 2.1% in Asia and Latin America. The revenue increase in Europe was the result of strong growth in the U.K. Russia and Spain, offset by reductions in several countries in the Euro Zone and the weakening of the U.S. Dollar against the British Pound and Euro. Revenue increased in Asia and Latin America, compared to 2013, but the rate of growth was negatively impacted by the strengthening of the U.S. Dollar against most currencies in those markets. The change in revenue in the first nine months of 2014 compared to the first nine months of 2013 in our four fundamental disciplines was: advertising increased9.0%, CRM increased3.2%, public relations increased3.9% and specialty communications decreased1.9%.

We measure operating expenses in two distinct cost categories: salary and service costs and office and general expenses. Salary and service costs consist of employee compensation and related costs and direct service costs. Office and general expenses consist of rent and occupancy costs, technology costs, depreciation and amortization and other overhead expenses. Each of our agencies requires professionals with the skill sets that are common across our disciplines. At the core of the skill sets is the ability to understand a client’s brand or product and its selling proposition and the ability to develop a unique message to communicate the value of the brand or product to the client’s target audience. The facility requirements of our agencies are also similar across geographic regions and disciplines, and their technology requirements are generally limited to personal computers, servers and off-the-shelf software. Because we are a service business, we monitor salary and service costs and office and general costs in relation to revenue.

Salary and service costs tend to fluctuate in conjunction with changes in revenue. In the third quarter of 2014, salary and service costs increased$228.0 million compared to the third quarter of 2013 and in the first nine months of 2014, salary and service costs increased$497.4 million compared to the first nine months of 2013.

Office and general expenses are less directly linked to changes in our revenue than salary and service costs. In the third quarter of 2014, office and general expenses decreased$23.1 million compared to the third quarter of 2013 and in the first nine months of 2014, office and general expenses increased$8.4 million compared to the first nine months of 2013.

In the first nine months of 2014 and 2013, we incurred $8.8 million and $28.1 million, respectively, of expenses in connection with the proposed merger with Publicis, which were primarily comprised of professional fees. On May 8, 2014, the proposed merger with Publicis was terminated.

Operating margins increased to 11.6% in third quarter of 2014 from 10.9% in third quarter of 2013 and operating margins increased to 12.3% for the first nine months of 2014 from 12.1% in 2013. Excluding the merger expenses of $8.8 million and $28.1 million, respectively, operating margins for the first nine months of 2014decreased sightly to 12.3% from 12.4% in 2013.

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In the third quarter of 2014, net interest expense decreased to $31.4 million from $42.8 million in the third quarter of 2013 and in the first nine months of 2014, net interest expense decreased to $104.1 million from $124.6 million in the first nine months of 2013. Interest expense decreased $8.3 million to $42.2 million in the third quarter of 2014 and interest expense decreased $13.4 million to $135.4 million in the first nine months of 2014. The decrease in interest expense primarily resulted from the interest rate swaps on the 3.625% Senior Notes due May 1, 2022, or 2022 Notes, entered into on May 1, 2014.

For the third quarter of 2014, our effective tax rate decreased to 33.4%, compared to 34.5% for the third quarter of 2013 and for the first nine months of 2014 our effective tax rate decreased to 32.6%, compared to 33.8% for the first nine months of 2013. Income taxes for the first nine months of 2014 and 2013 reflect the recognition of an income tax benefit of $11.4 million and $6.4 million, respectively, related to expenses incurred in connection with the proposed merger with Publicis. Prior to the termination of the proposed merger on May 8, 2014, the majority of the merger costs were capitalized for income tax purposes and the related tax benefits were not recorded. Because the proposed merger was terminated, the merger costs were no longer required to be capitalized for income tax purposes. Excluding the income tax effect of the merger expenses, income taxes for the first nine months of 2014 and 2013 were was $422.3 million and $395.3 million, respectively.

Net income - Omnicom Group Inc. in the third quarter of 2014increased$47.8 million, or 24.4%, to $243.8 million from $196.0 million in the third quarter of 2013 and net income - Omnicom Group Inc. in the first nine months of 2014increased$83.8 million, or 12.1%, to $774.5 million from $690.7 million in the first nine months of 2013. The period-over-period increase is due to the factors described above. Diluted net income per common share - Omnicom Group Inc. increased28.4% to $0.95 in the third quarter of 2014, compared to $0.74 in the third quarter of 2013 and diluted net income per common share - Omnicom Group Inc. increased14.3% to $2.95 for the first nine months of 2014, compared to $2.58 for the first nine months of 2013 due to the factors described above, as well as the impact of the reduction in our weighted average common shares outstanding. The reduction in our weighted average common shares outstanding was the result of repurchases of our common stock, net of shares issued for the conversion of the Convertible Notes due July 31, 2032, or 2032 Notes, stock option exercises and shares issued under our employee stock purchase plan. Beginning in the second quarter of 2014, after the termination of the proposed merger with Publicis, we resumed repurchases of our common stock in the open market. Excluding the after-tax effect of the merger expenses, net income - Omnicom Group Inc. for the first nine months of 2014 and 2013 was $771.9 million and $712.4 million, respectively, and diluted net income per common share - Omnicom Group Inc. was $2.94 and $2.66, respectively.

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RESULTS OF OPERATIONS - Third Quarter 2014 Compared to Third Quarter 2013 (in millions):

	2014			2013
Revenue	$	3,749.6		$	3,490.5
Operating Expenses:
Salary and service costs	2,813.2			2,585.2
Office and general expenses	502.8			525.9
Total Operating Expenses	3,316.0			3,111.1
Add back: Amortization of intangible assets	26.9			25.8
	3,289.1			3,085.3
Earnings before interest, taxes and amortization of intangible assets (“EBITA”)	460.5			405.2
EBITA Margin - %	12.3		%	11.6		%
Deduct: Amortization of intangible assets	26.9			25.8
Operating Income	433.6			379.4
Operating Margin - %	11.6		%	10.9		%
Interest Expense	42.2			50.5
Interest Income	10.8			7.7
Income Before Income Taxes and Income From Equity Method Investments	402.2			336.6
Income Tax Expense	134.4			116.2
Income From Equity Method Investments	5.8			4.3
Net Income	273.6			224.7
Net Income Attributed To Noncontrolling Interests	(29.8		)	(28.7		)
Net Income - Omnicom Group Inc.	$	243.8		$	196.0

In the third quarter of 2013, we incurred $28.1 million of expenses in connection with the proposed merger with Publicis, which were primarily comprised of professional fees. On May 8, 2014, the proposed merger with Publicis was terminated. Excluding the merger expenses, operating income and operating margin for the third quarter of 2013 were $407.5 million and 11.7%, respectively and EBITA and EBITA margin for the third quarter of 2013 were $433.3 million and 12.4%, respectively. Excluding the income tax effect of the merger expenses of $6.4 million, income tax expense for the third quarter of 2013 was $122.6 million and excluding the after-tax effect of the merger expenses, net income - Omnicom Group Inc. for the third quarter of 2013 was $217.7 million.

EBITA, which we define as earnings before interest, taxes and amortization of intangible assets, and EBITA Margin, which we define as EBITA divided by Revenue, are Non-GAAP financial measures. We use EBITA and EBITA Margin as additional operating performance measures, which exclude the non-cash amortization expense of acquired intangible assets. The table above reconciles EBITA and EBITA Margin to the U.S. GAAP financial measure of Operating Income for the periods presented. We believe that EBITA and EBITA Margin are useful measures to evaluate the performance of our businesses. Non-GAAP financial measures should not be considered in isolation from or as a substitute for financial information presented in compliance with U.S. GAAP. Non-GAAP financial measures reported by us may not be comparable to similarly titled amounts reported by other companies.

Revenue

In the third quarter of 2014, revenue increased$259.1 million, or 7.4%, to $3,749.6 million from $3,490.5 million in the third quarter of 2013. Changes in foreign exchange rates increased revenue $13.2 million, acquisitions net of dispositions increased revenue $19.6 million and organic growth increased revenue $226.3 million.

The components of the third quarter of 2014 revenue change in the United States (“Domestic”) and the remainder of the world (“International”) were (in millions):

	Total				Domestic					International
	$		%		$			%		$		%
Quarter ended September 30, 2013	$	3,490.5			$	1,815.5				$	1,675.0
Components of revenue change:
Foreign exchange impact	13.2		0.4	%	—			—	%	13.2		0.8	%
Acquisitions, net of dispositions	19.6		0.5	%	(1.6		)	(0.1	)%	21.2		1.3	%
Organic growth	226.3		6.5	%	182.4			10.1	%	43.9		2.6	%
Quarter ended September 30, 2014	$	3,749.6	7.4	%	$	1,996.3		10.0	%	$	1,753.3	4.7	%

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The components and percentages are calculated as follows:

• The foreign exchange impact is calculated by first converting the current period’s local currency revenue using the average exchange rates from the equivalent prior period to arrive at a constant currency revenue (in this case $3,736.4 million for the Total column). The foreign exchange impact equals the difference between the current period revenue in U.S. Dollars and the current period revenue in constant currency ($3,749.6 million less $3,736.4 million for the Total column).

• The acquisition component is calculated by aggregating the applicable prior period revenue of the acquired businesses, less revenue of any business included in the prior period revenue that was disposed of subsequent to the period.

• Organic growth is calculated by subtracting both the foreign exchange and acquisition components from total revenue growth.

• The percentage change is calculated by dividing the individual component amount by the prior period revenue base of that component ($3,490.5 million for the Total column).

For the third quarter of 2014, changes in foreign exchange rates increased revenue 0.4%, or $13.2 million, compared to the third quarter of 2013. The most significant impacts resulted from the weakening of the U.S. Dollar against the British Pound, partially offset by the strengthening of the U.S. Dollar against the Canadian Dollar, Japanese Yen and Russian Rouble.

Assuming exchange rates at October 15, 2014 remain unchanged, we expect foreign exchange impacts to reduce revenue in the fourth quarter of 2014 by approximately 2%.

Revenue for the third quarter 2014 and the percentage change in revenue and organic growth from the third quarter of 2013 in our principal regional markets were (in millions):

	Revenue		% Change		% Organic Growth
Americas:
North America	$	2,124.4	8.6	%	8.9	%
Latin America	102.6		5.1	%	2.5	%
EMEA:
Europe	1,053.5		5.8	%	2.2	%
Middle East and Africa	63.8		16.3	%	18.1	%
Asia Pacific	405.3		5.2	%	4.4	%
	$	3,749.6	7.4	%	6.5	%

In the normal course of business, our agencies both gain and lose business from clients each year due to a variety of factors. The net change through the first nine months of 2014 was an overall gain in new business. Under our client-centric approach, we seek to broaden our relationships with all of our clients. Revenue from our largest client represented 2.7% and 3.1% of our revenue for the third quarter of 2014 and 2013, respectively. No other client represented more than 2.5% and 2.7% of revenue for the third quarter of 2014 and 2013, respectively. Our ten largest and 100 largest clients represented 18.3% and 50.7% of our revenue for the third quarter of 2014, respectively, and 20.1% and 53.0% of our revenue for the third quarter of 2013, respectively.

Driven by our clients’ continuous demand for more effective and efficient marketing activities, we strive to provide an extensive range of advertising, marketing and corporate communications services through various client-centric networks that are organized to meet specific client objectives. These services include advertising, brand consultancy, corporate social responsibility consulting, crisis communications, custom publishing, data analytics, database management, direct marketing, entertainment marketing, environmental design, experiential marketing, field marketing, financial/corporate business-to-business advertising, interactive marketing, marketing research, media planning and buying, mobile marketing, multi-cultural marketing, non-profit marketing, public affairs, public relations, reputation consulting, retail marketing, search engine marketing, social media marketing and sports and event marketing. In an effort to monitor the changing needs of our clients and to further expand the scope of our services to key clients, we monitor revenue across a broad range of disciplines and group them into the following four categories: advertising, CRM, public relations and specialty communications.

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Revenue for the third quarter of 2014 and 2013 and the percentage change in revenue and organic growth from the third quarter of 2013 by discipline were (in millions):

	Three Months Ended September 30,
	2014				2013				2014 vs. 2013
	$		% of Revenue		$		% of Revenue		$		% Change		% Organic Growth
Advertising	$	1,853.3	49.4	%	$	1,638.3	46.9	%	$	215.0	13.1	%	12.5	%
CRM	1,306.7		34.8	%	1,276.5		36.6	%	30.2		2.4	%	1.0	%
Public relations	343.3		9.2	%	332.4		9.5	%	10.9		3.3	%	2.5	%
Specialty communications	246.3		6.6	%	243.3		7.0	%	3.0		1.2	%	(0.1	)%
	$	3,749.6			$	3,490.5			$	259.1	7.4	%	6.5	%

We operate in a number of industry sectors. The percentage of our revenue by industry sector for the third quarter of 2014 and 2013 was:

Industry	2014		2013
Food and Beverage	13.1	%	13.7	%
Consumer Products	9.7	%	9.7	%
Pharmaceuticals and Health Care	9.6	%	10.4	%
Financial Services	7.0	%	7.5	%
Technology	8.9	%	9.2	%
Auto	8.1	%	8.7	%
Travel and Entertainment	6.2	%	5.3	%
Telecommunications	5.3	%	6.7	%
Retail	6.5	%	6.3	%
Other	25.6	%	22.5	%

Looking ahead to the remainder of the year, barring unforeseen events and excluding the impact from changes in foreign exchange rates, as a result of continued strong operating performance by many of our agencies and new business activities, we expect our revenue to increase modestly in excess of the weighted average nominal GDP growth in our major markets.

Operating Expenses

Operating expenses for the third quarter of 2014 compared to the third quarter of 2013 were (in millions):

	Three Months Ended September 30,
	2014						2013						2014 vs. 2013
	$		% of Revenue		% of Total Operating Expenses		$		% of Revenue		% of Total Operating Expenses		$ Change			% Change
Revenue	$	3,749.6					$	3,490.5					$	259.1		7.4	%
Operating Expenses:
Salary and service costs	2,813.2		75.0	%	84.8	%	2,585.2		74.0	%	83.1	%	228.0			8.8	%
Office and general expenses	502.8		13.4	%	15.2	%	525.9		15.1	%	16.9	%	(23.1		)	(4.4	)%
Operating Expenses	3,316.0		88.4	%			3,111.1		89.1	%			204.9			6.6	%
Operating Income	$	433.6	11.6	%			$	379.4	10.9	%			$	54.2		14.3	%

Salary and service costs tend to fluctuate in conjunction with changes in revenue. Salary and service costs increased$228.0 million in the third quarter of 2014, compared to the third quarter of 2013 reflecting growth in revenue and increases related to changes in the mix of our business during the period, including increased use of freelance labor.

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Office and general expenses are less directly linked to changes in our revenue than salary and service costs. Office and general expenses decreased$23.1 million in the third quarter of 2014, compared to the third quarter of 2013.

In the third quarter of 2013, we incurred $28.1 million of expenses in connection with the proposed merger with Publicis, which were primarily comprised of professional fees. On May 8, 2014, the proposed merger with Publicis was terminated. Excluding the merger expenses in the third quarter of 2013, office and general expenses for the third quarter of 2014increased $5.0 million compared to the third quarter of 2013, but decreased as a percentage of revenue reflecting our continuing efforts to control the cost structures of our agencies.

Operating income for the third quarter of 2014increased14.3%, compared to the third quarter of 2013. Operating margins increased to 11.6% in 2014 from 10.9% in 2013 and EBITA margins increased to 12.3% in the third quarter of 2014 from 11.6% in the third quarter of 2013. Excluding the merger expenses of $28.1 million, operating margin and EBITA margin for the third quarter of 2013 were 11.7% and 12.4%, respectively.

Net Interest Expense

Net interest expense decreased to $31.4 million in the third quarter of 2014, compared to $42.8 million in the third quarter of 2013. Interest expense decreased$8.3 million to $42.2 million. The reduction in interest expense is primarily a result of the interest rate swaps on the 2022 Notes. Interest income increased$3.1 million in the third quarter of 2014.

Income Taxes

Our effective tax rate for the third quarter of 2014decreased to 33.4%, compared to 34.5% for the third quarter of 2013. Excluding the income tax effect of the merger expenses of $6.4 million related to expenses expenses incurred with the proposed merger with Publicis, income taxes for the third quarter of 2013 were $122.6 million. On May 8, 2014, the proposed merger with Publicis was terminated.

Net Income Per Common Share - Omnicom Group Inc.

Net income - Omnicom Group Inc. for the third quarter of 2014increased$47.8 million, or 24.4%, to $243.8 million, compared to $196.0 million in the third quarter of 2013. The period-over-period increase is due to the factors described above. Diluted net income per common share - Omnicom Group Inc. increased28.4% to $0.95 in the third quarter of 2014 compared to $0.74 in the third quarter of 2013 due to the factors described above, as well as the impact of the reduction in our weighted average common shares outstanding. The reduction in our weighted average common shares outstanding was the result of repurchases of our common stock, net of shares issued for the conversion of the 2032 Notes in the third quarter of 2014, stock option exercises and shares issued under our employee stock purchase plan. Beginning in the second quarter of 2014, after the termination of the proposed merger with Publicis, we resumed repurchases of our common stock in the open market. Excluding the after-tax effect of the merger expenses, net income - Omnicom Group Inc. for the third quarter of 2013 was $217.7 million and diluted net income per common share - Omnicom Group Inc. was $0.82.

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RESULTS OF OPERATIONS - First Nine Months of 2014 Compared to First Nine Months of 2013 (in millions):

	2014			2013
Revenue	$	11,122.7		$	10,526.4
Operating Expenses:
Salary and service costs	8,230.7			7,733.3
Office and general expenses	1,527.3			1,518.9
Total Operating Expenses	9,758.0			9,252.2
Add back: Amortization of intangible assets	77.1			76.3
	9,680.9			9,175.9
Earnings before interest, taxes and amortization of intangible assets (“EBITA”)	1,441.8			1,350.5
EBITA Margin - %	13.0		%	12.8		%
Deduct: Amortization of intangible assets	77.1			76.3
Operating Income	1,364.7			1,274.2
Operating Margin - %	12.3		%	12.1		%
Interest Expense	135.4			148.8
Interest Income	31.3			24.2
Income Before Income Taxes and Income From Equity Method Investments	1,260.6			1,149.6
Income Tax Expense	410.9			388.9
Income From Equity Method Investments	10.4			10.5
Net Income	860.1			771.2
Net Income Attributed To Noncontrolling Interests	(85.6		)	(80.5		)
Net Income - Omnicom Group Inc.	$	774.5		$	690.7

In the first nine months of 2014 and 2013, we incurred $8.8 million and $28.1 million, respectively, of expenses in connection with the proposed merger with Publicis, which were primarily comprised of professional fees. On May 8, 2014, the proposed merger with Publicis was terminated. Excluding the merger expenses, operating income and operating margin for the first nine months of 2013 were $1,302.3 million and 12.4%, respectively and EBITA and EBITA margin for the first nine months of 2013 were $1,378.6 million and 13.1%, respectively. Income tax expense for the first nine months of 2014 and 2013 reflects the recognition of an income tax benefit of $11.4 million and $6.4 million, respectively, related to expenses incurred in connection with the proposed merger with Publicis. Prior to the termination of the proposed merger, the majority of the merger costs were capitalized for income tax purposes and the related tax benefits were not recorded. Because the proposed merger was terminated, the merger costs were no longer required to be capitalized for income tax purposes. Excluding the income tax effect of the merger expenses, income taxes for the first nine months of 2014 and 2013 were was $422.3 million and $395.3 million, respectively. Excluding the after-tax effect of the merger expenses, net income - Omnicom Group Inc. for the first nine months of 2014 and 2013 was $771.9 million and $712.4 million, respectively.

EBITA, which we define as earnings before interest, taxes and amortization of intangible assets, and EBITA Margin, which we define as EBITA divided by Revenue, are Non-GAAP financial measures. We use EBITA and EBITA Margin as additional operating performance measures, which exclude the non-cash amortization expense of acquired intangible assets. The table above reconciles EBITA and EBITA Margin to the U.S. GAAP financial measure of Operating Income for the periods presented. We believe that EBITA and EBITA Margin are useful measures to evaluate the performance of our businesses. Non-GAAP financial measures should not be considered in isolation from or as a substitute for financial information presented in compliance with U.S. GAAP. Non-GAAP financial measures reported by us may not be comparable to similarly titled amounts reported by other companies.

Revenue

In the first nine months of 2014, revenue increased$596.3 million, or 5.7%, to $11,122.7 million from $10,526.4 million in the first nine months of 2013. Changes in foreign exchange rates increased revenue $16.8 million, acquisitions net of dispositions reduced revenue $6.8 million and organic growth increased revenue $586.3 million.

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The components of the first nine months of 2014 revenue change in the United States (“Domestic”) and the remainder of the world (“International”) were (in millions):

	Total					Domestic					International
	$			%		$			%		$		%
Nine months ended September 30, 2013	$	10,526.4				$	5,511.1				$	5,015.3
Components of revenue change:
Foreign exchange impact	16.8			0.2	%	—			—	%	16.8		0.3	%
Acquisitions, net of dispositions	(6.8		)	(0.1	)%	(48.1		)	(0.9	)%	41.3		0.8	%
Organic growth	586.3			5.6	%	450.6			8.2	%	135.7		2.8	%
Nine months ended September 30, 2014	$	11,122.7		5.7	%	$	5,913.6		7.3	%	$	5,209.1	3.9	%

The components and percentages are calculated as follows:

• The foreign exchange impact is calculated by first converting the current period’s local currency revenue using the average exchange rates from the equivalent prior period to arrive at a constant currency revenue (in this case $11,105.9 million for the Total column). The foreign exchange impact equals the difference between the current period revenue in U.S. Dollars and the current period revenue in constant currency ($11,122.7 million less $11,105.9 million for the Total column).

• The acquisition component is calculated by aggregating the applicable prior period revenue of the acquired businesses, less revenue of any business included in the prior period revenue that was disposed of subsequent to the period.

• Organic growth is calculated by subtracting both the foreign exchange and acquisition components from total revenue growth.

• The percentage change is calculated by dividing the individual component amount by the prior period revenue base of that component ($10,526.4 million for the Total column).

In the first nine months of 2014, changes in foreign exchange rates increased revenue 0.2%, or $16.8 million, compared to the first nine months of 2013. The most significant impacts resulted from the weakening of the U.S. Dollar against the British Pound and Euro, substantially offset by the strengthening of the U.S. Dollar against the Australian Dollar, Brazilian Real, Canadian Dollar, Japanese Yen and Russian Rouble.

Revenue for the first nine months of 2014 and the percentage change in revenue and organic growth from the first nine months of 2013 in our principal regional markets were (in millions):

	Revenue		% Change		% Organic Growth
Americas:
North America	$	6,302.2	6.0	%	7.2	%
Latin America	306.1		(0.1	)%	6.0	%
EMEA:
Europe	3,165.8		6.7	%	2.2	%
Middle East and Africa	182.7		5.6	%	8.6	%
Asia Pacific	1,165.9		2.7	%	5.0	%
	$	11,122.7	5.7	%	5.6	%

Revenue from our largest client represented 2.7% and 2.8% of our revenue for the first nine months of 2014 and 2013, respectively. No other client represented more than 2.5% and 2.7% of revenue for the first nine months of 2014 and 2013, respectively. Our ten largest and 100 largest clients represented 18.2% and 50.6% of our revenue for the first nine months of 2014, respectively and 19.4% and 52.4% of our revenue for the first nine months of 2013, respectively.

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Revenue for the first nine months of 2014 and 2013 and the percentage change in revenue and organic growth by discipline were (in millions):

	Nine Months Ended September 30,
	2014				2013				2014 vs. 2013
	$		% of Revenue		$		% of Revenue		$			% Change		% Organic Growth
Advertising	$	5,491.4	49.4	%	$	5,039.3	47.8	%	$	452.1		9.0	%	9.3	%
CRM	3,835.7		34.5	%	3,715.3		35.3	%	120.4			3.2	%	2.1	%
Public relations	1,025.6		9.2	%	986.7		9.4	%	38.9			3.9	%	2.6	%
Specialty communications	770.0		6.9	%	785.1		7.5	%	(15.1		)	(1.9	)%	1.7	%
	$	11,122.7			$	10,526.4			$	596.3		5.7	%	5.6	%

We operate in a number of industry sectors. The percentage of our revenue by industry sector for the first nine months of 2014 and 2013 was:

Industry	2014		2013
Food and Beverage	13.2	%	13.7	%
Consumer Products	9.7	%	9.8	%
Pharmaceuticals and Health Care	9.8	%	10.3	%
Financial Services	7.0	%	7.4	%
Technology	8.7	%	9.1	%
Auto	8.0	%	8.3	%
Travel and Entertainment	5.8	%	5.4	%
Telecommunications	5.5	%	6.5	%
Retail	6.5	%	6.0	%
Other	25.8	%	23.5	%

Operating Expenses

Operating expenses for the first nine months of 2014 compared to the first nine months of 2013 were (in millions):

	Nine Months Ended September 30,
	2014						2013						2014 vs. 2013
	$		% of Revenue		% of Total Operating Expenses		$		% of Revenue		% of Total Operating Expenses		$ Change		% Change
Revenue	$	11,122.7					$	10,526.4					$	596.3	5.7	%
Operating Expenses:
Salary and service costs	8,230.7		74.0	%	84.3	%	7,733.3		73.5	%	83.6	%	497.4		6.4	%
Office and general expenses	1,527.3		13.7	%	15.7	%	1,518.9		14.4	%	16.4	%	8.4		0.6	%
Operating Expenses	9,758.0		87.7	%			9,252.2		87.9	%			505.8		5.5	%
Operating Income	$	1,364.7	12.3	%			$	1,274.2	12.1	%			$	90.5	7.1	%

Salary and service costs tend to fluctuate in conjunction with changes in revenue. Salary and service costs increased$497.4 million for the first nine months of 2014, compared to the first nine months of 2013 reflecting growth in revenue and increases related to changes in the mix of our business during the period, including increased use of freelance labor.

Office and general expenses are less directly linked to changes in our revenue than salary and service costs. Office and general expenses increased$8.4 million in the first nine months of 2014, compared to the first nine months of 2013.

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In the first nine months of 2014 and 2013, we incurred $8.8 million and $28.1 million, respectively, of expenses in connection with the proposed merger with Publicis, which were primarily comprised of professional fees. On May 8, 2014, the proposed merger with Publicis was terminated. Excluding the merger expenses in the first nine months of 2014 and 2013, office and general expenses for the first nine months of 2014increased$27.7 million to $1,518.5 million compared to $1,490.8 million the first nine months of 2013, but decreased as a percentage of revenue reflecting our continuing efforts to control the cost structures of our agencies.

Operating income for first nine months of 2014increased7.1%, compared to the first nine months of 2013. Operating margins increased to 12.3% in 2014 from 12.1% in 2013 and EBITA margins increased to 13.0% from 12.8%. Excluding the merger expenses of $28.1 million in 2013, operating margins and EBITA margins for the first nine months of 2013 were 12.4% and 13.1%, respectively.

Net Interest Expense

Net interest expense decreased to $104.1 million in the first nine months of 2014, compared to $124.6 million in the first nine months of 2013. Interest expense decreased$13.4 million to $135.4 million. The reduction in interest expense is primarily a result of the interest rate swaps on the 2022 Notes. Interest income increased$7.1 million in the first nine months of 2014 resulting from our overall cash managements efforts and interest earned on cash balances in our international treasury centers.

Income Taxes

Our effective tax rate for the first nine months of 2014decreased to 32.6% compared to 33.8% for the first nine months of 2013. Income taxes for the first nine months of 2014 and 2013 reflect the recognition of an income tax benefit of $11.4 million and $6.4 million, respectively, related to expenses incurred in connection with the proposed merger with Publicis. Prior to the termination of the proposed merger on May 8, 2014, the majority of the merger costs were capitalized for income tax purposes and the related tax benefits were not recorded. Because the proposed merger was terminated, the merger costs were no longer required to be capitalized for income tax purposes. Excluding the income tax effect of the merger expenses, income taxes for the first nine months of 2014 and 2013 were was $422.3 million and $395.3 million, respectively.

Net Income Per Common Share - Omnicom Group Inc.

Net income - Omnicom Group Inc. for the first nine months of 2014increased$83.8 million, or 12.1%, to $774.5 million, compared to $690.7 million for the first nine months of 2013. The period-over-period increase is due to the factors described above. Diluted net income per common share - Omnicom Group Inc. increased14.3% to $2.95 for the first nine months of 2014, compared to $2.58 for the first nine months of 2013 due to the factors described above, as well as the impact of the reduction in our weighted average common shares outstanding. The reduction in our weighted average common shares outstanding was the result of repurchases of our common stock, net of shares issued for the conversion of the 2032 Notes in the third quarter of 2014, stock option exercises and shares issued under our employee stock purchase plan. Beginning in the second quarter of 2014, after the termination of the proposed merger, we resumed repurchases of our common stock in the open market. Excluding the after-tax effect of the merger expenses, net income - Omnicom Group Inc. for the first nine months of 2014 and 2013 was $771.9 million and $712.4 million, respectively, and diluted net income per common share - Omnicom Group Inc. was $2.94 and $2.66, respectively.

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CRITICAL ACCOUNTING POLICIES

For a more complete understanding of all of our accounting policies, our financial statements and the related management’s discussion and analysis of those results, readers are encouraged to consider this information together with our discussion of our critical accounting policies under the heading “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our 2013 10-K.

Acquisitions and Goodwill

We have made and expect to continue to make selective acquisitions. In making acquisitions, the valuation of potential acquisitions is based on various factors, including specialized know-how, reputation, competitive position, geographic coverage and service offerings of the target businesses, as well as our experience and judgment.

Our acquisition strategy is focused on acquiring the expertise of an assembled workforce in order to continue to build upon the core capabilities of our various strategic business platforms and agency brands through the expansion of their geographic reach and/or their service capabilities to better serve our clients. Additional key factors we consider include the competitive position and specialized know-how of the acquisition targets. Accordingly, as is typical in most service businesses, a substantial portion of the intangible asset value we acquire is the know-how of the people, which is treated as part of goodwill and is not valued separately. For each acquisition, we undertake a detailed review to identify other intangible assets and a valuation is performed for all such identified assets. A significant portion of the identifiable intangible assets acquired is derived from customer relationships, including the related customer contracts, as well as trade names. In valuing these identified intangible assets, we typically use an income approach and consider comparable market participant measurements.

We evaluate goodwill for impairment at least annually at the end of the second quarter of the year and whenever events or circumstances indicate the carrying value may not be recoverable. We identified our regional reporting units as components of our operating segments, which are our five agency networks. The regional reporting units of each agency network are responsible for the agencies in their region. They report to the segment managers and facilitate the administrative and logistical requirements of our client-centric strategy for delivering services to clients in their regions. We have concluded that for each of our operating segments, their regional reporting units have similar economic characteristics and should be aggregated for purposes of testing goodwill for impairment at the operating segment level. Our conclusion was based on a detailed analysis of the aggregation criteria set forth in FASB ASC Topic 280, Segment Reporting, and the guidance set forth in FASB ASC Topic 350, Intangibles - Goodwill and Other. Consistent with our fundamental business strategy, the agencies within our regional reporting units serve similar clients in similar industries, and in many cases the same clients. In addition, the agencies within our regional reporting units have similar economic characteristics. The main economic components of each agency are employee compensation and related costs and direct service costs and office and general costs, which include rent and occupancy costs, technology costs that are generally limited to personal computers, servers and off-the-shelf software and other overhead expenses. Finally, the expected benefits of our acquisitions are typically shared across multiple agencies and regions as they work together to integrate the acquired agency into our client service strategy.

Goodwill Impairment Review - Estimates and Assumptions

We use the following valuation methodologies to determine the fair value of our reporting units: (1) the income approach, which utilizes discounted expected future cash flows, (2) comparative market participant multiples for EBITDA (earnings before interest, taxes, depreciation and amortization) and (3) when available, consideration of recent and similar acquisition transactions.

In applying the income approach, we use estimates to derive the expected discounted cash flows (“DCF”) for each reporting unit that serves as the basis of our valuation. These estimates and assumptions include revenue growth and operating margin, EBITDA, tax rates, capital expenditures, weighted average cost of capital and related discount rates and expected long-term cash flow growth rates. All of these estimates and assumptions are affected by conditions specific to our businesses, economic conditions related to the industry we operate in, as well as conditions in the global economy. The assumptions that have the most significant effect on our valuations derived using a DCF methodology are: (1) the expected long-term growth rate of our reporting units' cash flows and (2) the weighted average cost of capital (“WACC”).

The range of assumptions used for the long-term growth rate and WACC in our evaluations as of June 30, 2014 and 2013 were:

	June 30,
	2014	2013
Long-Term Growth Rate	4%	4%
WACC	9.9% - 10.6%	10.1% - 10.7%

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Long-term growth rate represents our estimate of the long-term growth rate for our industry and the markets of the global economy we operate in. The average historical revenue growth rate of our reporting units for the past ten years was approximately5.6%and the Average NominalGDP growth of the countries comprising our major markets that account for substantially all of our revenue was 4.2% over the same period. We considered this history when determining the long-term growth rates used in our annual impairment test at June 30, 2014. We believe marketing expenditures over the long term have a high correlation to GDP. We also believe, based on our historical performance, that our long-term growth rate will exceed Average Nominal GDP growth in the markets we operate in. For our annual test as of June 30, 2014, we used an estimated long-term growth rate of 4% for our reporting units.

When performing our annual impairment test as of June 30, 2014 and estimating the future cash flows of our reporting units, we considered the current macroeconomic environment, as well as industry and market specific conditions at mid-year 2014. In the first half of 2014, we experienced an increase in our revenue of 5.1%, which excludes growth from acquisitions and the impact from changes in foreign exchange rates. While economic conditions in the Euro Zone began to stabilize in the second half of 2013, the continuing fiscal issues faced by many countries in the European Union has caused economic difficulty in certain of our Euro Zone markets. We considered the effect of these conditions in our annual impairment test.

The WACC is comprised of: (1) a risk-free rate of return, (2) a business risk index ascribed to us and to companies in our industry comparable to our reporting units based on a market derived variable that measures the volatility of the share price of equity securities relative to the volatility of the overall equity market, (3) an equity risk premium that is based on the rate of return on equity of publicly traded companies with business characteristics comparable to our reporting units and (4) a current after-tax market rate of return on debt of companies with business characteristics similar to our reporting units, each weighted by the relative market value percentages of our equity and debt.

Our five reporting units vary in size with respect to revenue and the amount of debt allocated to them. These differences drive variations in fair value among our reporting units. In addition, these differences as well as differences in book value, including goodwill, cause variations in the amount by which fair value exceeds book value among the reporting units. The reporting unit goodwill balances and debt vary by reporting unit primarily because our three legacy agency networks were acquired at the formation of Omnicom and were accounted for as a pooling of interests that did not result in any additional debt or goodwill being recorded. The remaining two agency networks were built through a combination of internal growth and acquisitions that were accounted for using the acquisition method and as a result, they have a relatively higher amount of goodwill and debt.

Goodwill Impairment Review - Conclusion

Under U.S. GAAP, we have the option of either assessing qualitative factors to determine whether it is more-likely-than-not that the carrying value of our reporting units exceeds their respective fair value or proceeding directly to Step 1 of the goodwill impairment test. Although not required, we performed Step 1 of the annual impairment test and compared the fair value of each of our reporting units to its respective carrying value, including goodwill. Based on the results of our impairment test, we concluded that our goodwill was not impaired at June 30, 2014, because the fair value of each of our reporting units was substantially in excess of their respective net book value. The minimum decline in fair value that one of our reporting units would need to experience in order to fail Step 1 of the goodwill impairment test was approximately 70%. Notwithstanding our belief that the assumptions we used in our impairment testing for our WACC and long-term growth rate are reasonable, we performed a sensitivity analysis for each of our reporting units. The results of this sensitivity analysis on our impairment test as of June 30, 2014 revealed that if the WACC increased by 1% and/or the long-term growth rate decreased by 1%, the fair value of each of our reporting units would continue to be substantially in excess of their respective net book values and would pass Step 1 of the impairment test.

We will continue to perform our impairment test at the end of the second quarter of each year unless events or circumstances trigger the need for an interim impairment test. The estimates used in our goodwill impairment test do not constitute forecasts or projections of future results of operations, but rather are estimates and assumptions based on historical results and assessments of macroeconomic factors affecting our reporting units. We believe that our estimates and assumptions are reasonable, but they are subject to change from period to period. Actual results of operations and other factors will likely differ from the estimates used in our discounted cash flow valuation and it is possible that differences could be material. A change in the estimates we use could result in a decline in the estimated fair value of one or more of our reporting units from the amounts derived as of our latest valuation and could cause us to fail Step 1 of our goodwill impairment test if the estimated fair value for the reporting unit is less than the carrying value of the net assets of the reporting unit, including its goodwill. A large decline in estimated fair value of a reporting unit could result in a non-cash impairment charge and may have an adverse effect on our results of operations and financial position.

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NEW ACCOUNTING STANDARDS

See Note 2 to our unaudited condensed consolidated financial statements for additional information.

LIQUIDITY AND CAPITAL RESOURCES

Cash Sources and Requirements

Historically, the majority of our non-discretionary cash requirements have been funded from operating cash flow and cash on hand. Working capital is our principal non-discretionary funding requirement. In addition, we have contractual obligations related to our Senior Notes, our recurring business operations, primarily related to lease obligations, as well as contingent purchase price obligations (earn-outs) for acquisitions made in prior years.

Our principal discretionary cash uses include dividend payments, capital expenditures, payments for strategic acquisitions and repurchases of our common stock. In the second quarter of 2014, following the termination of the proposed merger with Publicis, we resumed repurchases of our common stock. Our discretionary spending is funded from operating cash flow and cash on hand. In addition, depending on the level of our discretionary activity and conditions in the capital markets, we may use other available sources of funding, such as issuing commercial paper, borrowing under our $2.5 billion line of credit, or Credit Agreement, or other long-term borrowings to finance these activities. For the remainder of 2014, we expect to have sufficient liquidity to fund both our non-discretionary cash requirements and our discretionary spending. However, we may access the capital markets at any time if favorable conditions exist.

We have a seasonal cash requirement normally peaking during the first half of the year primarily due to the timing of payments for incentive compensation, income taxes and contingent purchase price obligations. This typically results in a net borrowing requirement that decreases over the course of the year.

During the first nine months of 2014, we generated$33.1 million of cash from operations, which included cash used for operating capital of $1,091.9 million. Our discretionary spending during the first nine months of 2014 was: capital expenditures of $138.3 million; dividends paid of $340.7 million; dividends paid to shareholders of noncontrolling interests of $83.2 million; repurchases of our common stock, net of proceeds from stock option exercises and related tax benefits and common stock sold to our employee stock purchase plan, of $830.0 million; and, acquisition payments, net of cash acquired, of $65.3 million plus contingent purchase price obligations of $74.5 million and acquisition of additional shares of noncontrolling interests of $22.0 million.

On May 20, 2014, we increased the quarterly cash dividend on our common stock to $0.50 per share.

Cash Management

We manage our cash and liquidity centrally through our regional treasury centers in North America, Europe and Asia. The treasury centers are managed by our wholly-owned finance subsidiaries. Each day, operations with excess funds invest these funds with their regional treasury center. Likewise, operations that require funds borrow from their regional treasury center. The treasury centers aggregate the net position which is either invested with or borrowed from third parties. To the extent that our treasury centers require liquidity, they have the ability to access local currency uncommitted lines of credit, the Credit Agreement or issue up to a total of $2.0 billion of U.S. Dollar-denominated commercial paper. This process enables us to manage our debt balances more efficiently and utilize our cash more effectively, as well as better manage our risk to foreign exchange rate changes. In countries where we either do not conduct treasury operations or it is not feasible for one of our treasury centers to fund net borrowing requirements on an intercompany basis, we arrange for local currency uncommitted lines of credit.

Our cash and cash equivalents decreased$1.9 billion to $837.7 million and our short-term investments decreased$5.6 million to $12.6 million from December 31, 2013, primarily to fund our seasonal working capital requirement, as well as repurchases of our common stock. Short-term investments primarily consist of time deposits with financial institutions that we expect to convert into cash within our current operating cycle, generally one year.

At September 30, 2014, our total cash and cash equivalents were $837.7 million, of which our foreign subsidiaries held approximately $541 million. The majority of this cash is available to us, net of any taxes payable upon repatriation to the United States. Changes in international tax rules or changes in U.S. tax rules and regulations covering international operations and foreign tax credits may affect our future reported financial results or the way we conduct our business.

27

We have policies governing counterparty credit risk with financial institutions that hold our cash and cash equivalents and we have deposit limits for each financial institution. In countries where we conduct treasury operations, generally the counterparties are either branches or subsidiaries of the financial institutions that are party to the Credit Agreement. These financial institutions generally have credit ratings equal to or better than our credit ratings. In countries where we do not conduct treasury operations, we ensure that all cash and cash equivalents are held by counterparties that meet specific minimum credit standards.

Debt Instruments and Related Covenants

We have committed and uncommitted lines of credit. On July 31, 2014, we amended our Credit Agreement to extend the term to July 31, 2019. We have the ability to classify borrowings under the Credit Agreement as long-term. In addition, we can issue up to $2.0 billion of commercial paper.

Depending on market conditions at the time, we typically fund our day-to-day liquidity by issuing commercial paper, borrowing under our uncommitted lines of credit or drawing on our Credit Agreement. At September 30, 2014, there were no outstanding commercial paper issuances or borrowings under the Credit Agreement.

Commercial paper activity for the quarters ended September 30, 2014 and 2013 was (dollars in millions):

	2014			2013
Average amount outstanding during the quarter	$	1,425.1		$	690.3
Maximum amount outstanding during the quarter	$	1,795.2		$	1,027.5
Total issuances during the quarter	$	5,270.4		$	4,612.8
Average days outstanding	24.9			13.8
Weighted average interest rate	0.29		%	0.32		%

At September 30, 2014, short-term borrowings of $31.3 million represent bank overdrafts and lines of credit of our international subsidiaries. These bank overdrafts and lines of credit are treated as unsecured loans pursuant to the agreements supporting the facilities.

The Credit Agreement contains financial covenants that require us to maintain a Leverage Ratio of consolidated indebtedness to consolidated EBITDA of no more than 3 times for the most recently ended 12-month period (under the Credit Agreement, EBITDA is defined as earnings before interest, taxes, depreciation and amortization) and an Interest Coverage Ratio of consolidated EBITDA to interest expense of at least 5 times for the most recently ended 12-month period. At September 30, 2014 we were in compliance with these covenants as our Leverage Ratio was 1.7 times and our Interest Coverage Ratio was 12 times. The Credit Agreement does not limit our ability to declare or pay dividends.

At September 30, 2014, the carrying value of our debt and amounts available under the Credit Agreement were (in millions):

	Debt		Available Credit
Short-term borrowings, due in less than one year	$	31.3	$	—
Credit Agreement	—		2,500.0
5.9% Senior Notes due April 15, 2016	1,000.0		—
6.25% Senior Notes due July 15, 2019	500.0		—
4.45% Senior Notes due August 15, 2020	1,000.0		—
3.625% Senior Notes due May 1, 2022	1,250.0		—
Other debt	0.3		—
	3,781.6		2,500.0
Unamortized premium (discount) on Senior Notes, net	13.8		—
Adjustment to carrying value for interest rate swaps	15.1		—
	$	3,810.5	$	2,500.0

28

On May 1, 2014, we entered into an interest rate swap on the $1.25 billion principal amount of our 2022 Notes and on September 29, 2014, we entered into an interest rate swap on the $1 billion principal amount of our 4.45% Senior Notes due August 15, 2020, or 2020 Notes. The interest rate swaps hedge the risk of changes in fair value of the 2022 Notes and the 2020 Notes attributable to changes in the benchmark LIBOR interest rate. Under the terms of the swaps, we receive fixed interest rate payments and pay a variable interest rate, based on LIBOR, on the total principal amount of the 2022 Notes and the 2020 Notes, respectively. The swaps qualify as a hedge for accounting purposes and were designated as a fair value hedge on the 2022 Notes and 2020 Notes, respectively. The swaps have the economic effect of converting the 2022 Notes and the 2020 Notes from fixed rate debt to floating rate debt. Gains and losses attributed to changes in the fair value of the interest rate swaps substantially offset changes in the fair value of the 2022 Notes and the 2020 Notes, respectively, attributed to changes in the benchmark interest rate. The net interest settlement is recorded in interest expense.

On June 5, 2014, we called the 2032 Notes for redemption on July 31, 2014 at a redemption price of 100% of the principal amount of the notes. As provided in the indenture governing the 2032 Notes, prior to July 29, 2014, the noteholders had the right to convert their notes into shares of our common stock at a conversion rate of 18.463 shares per $1,000 principal amount. Substantially all noteholders exercised their conversion right. We paid $252.7 million in cash representing the principal amount of the notes that were converted and issued 1,217,112 shares of our common stock to satisfy the conversion premium. On July 31, 2014, we redeemed any 2032 Notes that were not converted.

Credit Markets and Availability of Credit

We will continue to take actions available to us to respond to changing economic conditions and actively manage our discretionary expenditures and we will continue to monitor and manage the level of credit made available to our clients. We believe that these actions, in addition to operating cash flow and the availability of our Credit Agreement, are sufficient to fund our working capital needs and our discretionary spending.

In funding our day-to-day liquidity, we have historically been a participant in the commercial paper market. We expect to continue funding our day-to-day liquidity through the commercial paper market. However, prior disruptions in the credit markets led to periods of illiquidity in the commercial paper market and higher credit spreads. During these periods of disruption, we used our uncommitted lines of credit and borrowed under our Credit Agreement to mitigate these conditions and to fund our day-to-day liquidity. We will continue to closely monitor our liquidity and the credit markets. We cannot predict with any certainty the impact on us of any future disruptions in the credit markets.

CREDIT RISK

We provide advertising, marketing and corporate communications services to several thousand clients who operate in nearly every industry sector of the global economy and in the normal course of business, we grant credit to qualified clients. Due to the diversified nature of our client base, we do not believe that we are exposed to a concentration of credit risk as our largest client accounted for 2.7% of our revenue for the first nine months of 2014 and no other client accounted for more than 2.5% of our revenue. However, during periods of economic downturn, the credit profiles of our clients could change.

In the normal course of business, our agencies enter into contractual commitments with media providers and production companies on behalf of our clients at levels that can substantially exceed the revenue from our services. These commitments are included in accounts payable when the services are delivered by the media providers or production companies. If permitted by local law and the client agreement, many of our agencies purchase media and production services for our clients as an agent for a disclosed principal. In addition, while operating practices vary by country, media type and media vendor, in the United States and certain foreign markets, many of our agencies’ contracts with media and production providers specify that our agencies are not liable to the media and production providers under the theory of sequential liability until and to the extent we have been paid by our client for the media or production services.

Where purchases of media and production services are made by our agencies as a principal or are not subject to the theory of sequential liability, the risk of a material loss as a result of payment default by our clients could increase significantly and such a loss could have a material adverse effect on our results of operations and financial position.    

In addition, methods of managing the risk of payment default, including obtaining credit insurance, requiring payment in advance, mitigating the potential loss in the marketplace or negotiating with media providers, may be less available or unavailable during a severe economic downturn.

29

ITEM 3. QUANTATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

As a global service business, we operate in multiple foreign currencies and issue debt in the capital markets. In the normal course of business, we are exposed to foreign currency fluctuations and the impact of interest rate changes. We limit these risks through risk management policies and procedures, including the use of derivatives. For foreign currency exposure, derivatives are used as an economic hedge to better manage the cash flow volatility arising from foreign exchange rate fluctuations. For interest rate exposure, derivatives are used to manage the related cost of debt.

As a result of using derivative instruments, we are exposed to the risk that counterparties to derivative contracts will fail to meet their contractual obligations. To mitigate the counterparty credit risk, we have a policy of only entering into contracts with carefully selected major financial institutions based on specific minimum credit standards and other factors. We do not use derivative financial instruments for trading or speculative purposes.

Our 2013 10-K provides a detailed discussion of the market risks affecting our operations. No material change has occurred in our market risks since the disclosure contained in our 2013 10-K. See our discussion regarding current economic conditions in Item 2 - Management’s Discussion and Analysis of Financial Condition and Results of Operations, in the Executive Summary and Liquidity and Capital Resources sections.

ITEM 4. CONTROLS AND PROCEDURES

We maintain disclosure controls and procedures designed to ensure that information required to be disclosed in reports we file with or furnish to the Securities and Exchange Commission is recorded, processed, summarized and reported within applicable time periods. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in our reports that we file or furnish under the Securities Exchange Act of 1934, as amended, or the Exchange Act, is accumulated and communicated to management, including our Chief Executive Officer, or CEO, and Chief Financial Officer, or CFO, as appropriate to allow timely decisions regarding required disclosure. Management, including our CEO and CFO, conducted an evaluation of the effectiveness of our disclosure controls and procedures as of September 30, 2014. Based on that evaluation, our CEO and CFO concluded that, as of September 30, 2014, our disclosure controls and procedures are effective to ensure that decisions can be made timely with respect to required disclosures, as well as ensuring that the recording, processing, summarization and reporting of information required to be included in our Quarterly Report on Form 10-Q for the quarter ended September 30, 2014 are appropriate.

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Under the supervision of management and with the participation of our CEO, CFO and our agencies, we conducted an evaluation of the effectiveness of our internal control over financial reporting based on the framework in Internal Control – Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission published in 1992. Based on that evaluation, our CEO and CFO concluded that our internal control over financial reporting was effective as of September 30, 2014. There have not been any changes in our internal control over financial reporting during our most recent fiscal quarter that have materially affected or are reasonably likely to materially affect our internal control over financial reporting.

KPMG LLP, an independent registered public accounting firm that audited our consolidated financial statements included in our 2013 10-K, has issued an attestation report on Omnicom’s internal control over financial reporting as of December 31, 2013, dated February 12, 2014.

30

PART II. OTHER INFORMATION

ITEM 1. Legal Proceedings

In August 2013, several putative class actions challenging the proposed merger of Omnicom and Publicis were filed on behalf of Omnicom shareholders and named as defendants Omnicom and its board of directors, as well as Publicis and Publicis Omnicom Group. The suits alleged that the members of the Omnicom board breached their fiduciary duties by, among other things, approving a merger that was purportedly detrimental to Omnicom’s shareholders. The actions also alleged that Publicis aided and abetted the Omnicom board’s breach of their fiduciary duties. In October 2013, all the actions were consolidated with each other into one case. On May 8, 2014, the proposed merger of Omnicom and Publicis was terminated. On May 22, 2014, a stipulation of voluntary discontinuance was submitted to the Court.  The Court so-ordered the stipulation and dismissed the case on May 23, 2014.

In the ordinary course of business, we are involved in various other legal proceedings. We do not presently expect that these other proceedings will have a material adverse effect on our results of operations or financial position.

ITEM 1A. Risk Factors

There have been no material changes to the risk factors disclosed in Item 1A in our 2013 10-K.

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

Stock purchase activity during the three months ended September 30, 2014 was:

Period	Total Number of Shares Purchased	Average Price Paid Per Share	Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Number of Shares that May Yet Be Purchased Under the Plans or Programs
July 2014	397,982	$71.31	—	—
August 2014	2,585,476	$71.05	—	—
September 2014	1,063,000	$70.54	—	—
	4,046,458	$70.94	—	—

During the three months ended September 30, 2014, we purchased 3,829,754 shares of our common stock in the open market for general corporate purposes and withheld 216,704 shares from employees to satisfy estimated statutory income tax obligations related to stock option exercises and vesting of restricted stock. The value of the common stock withheld was based on the closing price of our common stock on the applicable exercise or vesting date.

There were no unregistered sales of our equity securities during the three months ended September 30, 2014.

ITEM 6. Exhibits

(a) Exhibits

10	Amended and Restated Five Year Credit Agreement, dated as of July 31, 2014, by and among Omnicom Capital Inc., Omnicom Finance plc, Omnicom Group Inc., the banks, financial institutions and other institutional lenders and initial issuing banks listed on the signature pages thereof, Citigroup Global Markets Inc., J.P. Morgan Securities LLC,  HSBC Securities (USA) Inc. and Wells Fargo Securities, LLC, as lead arrangers and book managers, JPMorgan Chase Bank, N.A., HSBC Securities (USA) Inc., and Wells Fargo Bank, National Association, as syndication agents,  BNP Paribas and U.S. Bank National Association, as documentation agents, and Citibank, N.A., as administrative agent for the lenders (Exhibit 10.1 to our Current Report on Form 8-K (File No. 1-10551) filed on August 1, 2014 and incorporated herein by reference).
12	Computation of Ratio of Earnings to Fixed Charges.
31.1	Certification of the Chief Executive Officer and President required by Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended.
31.2	Certification of the Executive Vice President and Chief Financial Officer required by Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended.
32	Certification of the Chief Executive Officer and President and the Executive Vice President and Chief Financial Officer required by Rule 13a-14(b) under the Securities Exchange Act of 1934, as amended, and 18 U.S.C. §1350.
101	Interactive Data File.

31

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.

		OMNICOM GROUP INC.
Dated:	October 21, 2014	/s/ PHILIP J. ANGELASTRO
		Philip J. Angelastro Executive Vice President and Chief Financial Officer (Principal Financial Officer, Principal Accounting Officer and Authorized Signatory)

32

EX-12

EXHIBIT 12

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

(In millions, except ratios)

(Unaudited)

	For the Nine Months Ended September 30, 2014
Earnings:
Income before income taxes	$	1,260.6
Add: Dividends from affiliates	10.1
Fixed charges	234.5
Total earnings	$	1,505.2
Fixed charges:
Interest expense (a)	$	135.4
Rent expense interest factor (b)	99.1
Total fixed charges	$	234.5
Ratio of earnings to fixed charges	6.42x

___________________

(a) Interest expense includes interest on third-party indebtedness.

(b) The rent expense interest factor reflects an appropriate portion (one-third) of rent expense representative of interest.

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, John D. Wren, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2014 of Omnicom Group Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the 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 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:	October 21, 2014	/s/ JOHN D. WREN
		John D. Wren
		Chief Executive Officer and President

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Philip J. Angelastro, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2014 of Omnicom Group Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the 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 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:	October 21, 2014	/s/ PHILIP J. ANGELASTRO
		Philip J. Angelastro
		Executive Vice President and
		Chief Financial Officer

EX-32

EXHIBIT 32

CERTIFICATION

Pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, in connection with the filing of Omnicom Group Inc.’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2014, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers of Omnicom Group Inc. certifies that, to such officer's knowledge:

• the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

• the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Omnicom Group Inc. as of the dates and for the periods expressed in the Report.

Executed as of October 21, 2014.

/s/ JOHN D. WREN
Name:	John D. Wren
Title:	Chief Executive Officer and President

/s/ PHILIP J. ANGELASTRO
Name:	Philip J. Angelastro
Title:	Executive Vice President and Chief Financial Officer

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, and will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except to the extent that Omnicom Group Inc. specifically incorporates it by reference.

XML

Operating Expenses (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Operating Expenses [Abstract]
Salary and service costs	$ 2,813.2	$ 2,585.2	$ 8,230.7	$ 7,733.3
Office and general expenses	502.8	497.8	1,518.5	1,490.8
Merger expenses	0	28.1	8.8	28.1
Operating expenses	$ 3,316.0	$ 3,111.1	$ 9,758.0	$ 9,252.2

XML

Goodwill and Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Goodwill, Gross Carrying Value	$ 9,443.8		$ 9,502.6
Goodwill, Accumulated Amortization	568.6		586.6
Goodwill, Net Carrying Value	8,875.2	8,869.0
Intangible assets:, Gross Carrying Value	990.6		938.3
Intangible assets:, Accumulated Amortization	603.6		552.3
Intangible assets:, Net Carrying Value	387.0		386.0
Goodwill [Roll Forward]
Goodwill, January 1	8,916.0	8,844.2
Goodwill, Acquisitions	131.4	55.5
Goodwill, Dispositions	(1.6)	(8.5)
Goodwill, Foreign currency translation	(170.6)	(22.2)
Goodwill, September 30	8,875.2	8,869.0
Goodwill, impairment losses	0
Goodwill, accumulated impairment losses	0
Goodwill, acquisitions of noncontrolling interests	27.6	9.2
Purchased and internally developed software
Intangible assets:, Gross Carrying Value	296.2		283.2
Intangible assets:, Accumulated Amortization	224.6		217.4
Intangible assets:, Net Carrying Value	71.6		65.8
Customer related and other
Intangible assets:, Gross Carrying Value	694.4		655.1
Intangible assets:, Accumulated Amortization	379.0		334.9
Intangible assets:, Net Carrying Value	$ 315.4		$ 320.2

XML

Debt (Tables)

9 Months Ended

Sep. 30, 2014

Available and Unused Lines of Credit

Available and unused lines of credit at September 30, 2014 and December 31, 2013 were (in millions):

	2014		2013
Credit Agreement	$	2,500.0	$	2,500.0
Uncommitted lines of credit	950.7		1,051.5
Available and unused lines of credit	$	3,450.7	$	3,551.5

Long-Term Notes Payable [Member]

Long-Term Debt

Long-term notes payable at September 30, 2014 and December 31, 2013 were (in millions):

	2014		2013
5.9% Senior Notes due April 15, 2016	$	1,000.0	$	1,000.0
6.25% Senior Notes due July 15, 2019	500.0		500.0
4.45% Senior Notes due August 15, 2020	1,000.0		1,000.0
3.625% Senior Notes due May 1, 2022	1,250.0		1,250.0
Other notes and loans	0.3		0.5
	3,750.3		3,750.5
Unamortized premium (discount) on Senior Notes, net	13.8		14.7
Adjustment to carrying value for interest rate swaps	15.1		15.9
	3,779.2		3,781.1
Less current portion	0.3		0.4
Long-term notes payable	$	3,778.9	$	3,780.7

XML

Changes in Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
January 1, 2014	$ (191.6)	$ (129.5)
Other comprehensive income (loss) before reclassifications	(232.6)	(95.6)
Amounts reclassified from accumulated other comprehensive income (loss)	4.1	4.5
Other comprehensive income (loss)	(228.5)	(91.1)
September 30, 2014	(420.1)	(220.6)
Unrealized Gain (Loss) on Available-for-Sale Securities
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
January 1, 2014	(1.6)	(2.0)
Other comprehensive income (loss) before reclassifications	0.3	0.3
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Other comprehensive income (loss)	0.3	0.3
September 30, 2014	(1.3)	(1.7)
Defined Benefit Pension and Postemployment Plans
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
January 1, 2014	(68.8)	(89.8)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	4.1	4.5
Other comprehensive income (loss)	4.1	4.5
September 30, 2014	(64.7)	(85.3)
Defined Benefit Pension and Postemployment Plans | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification out of Accumulated Other Comprehensive Income [Abstract]
Prior service cost	4.8	4.2
Actuarial (gains) losses	2.0	3.4
Periodic benefit cost (see Note 9)	6.8	7.6
Income taxes	2.7	3.1
Periodic benefit cost, net of income taxes	4.1	4.5
Foreign Currency Translation
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
January 1, 2014	(121.2)	(37.7)
Other comprehensive income (loss) before reclassifications	(232.9)	(95.9)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Other comprehensive income (loss)	(232.9)	(95.9)
September 30, 2014	$ (354.1)	$ (133.6)

XML

Income Taxes (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Income Taxes [Abstract]
Income tax benefit, merger expenses	$ 11.4
Current Taxes Payable, Conversion of Convertible Debt	66.2
Adjustment to Additional Paid-In Capital, Conversion of Convertible Debt	32.2
Unrecognized tax benefits	139.3
Unrecognized tax benefits that would impact effective tax rate	$ 58.5

XML

New Accounting Standards

9 Months Ended

Sep. 30, 2014

New Accounting Standards [Abstract]

New Accounting Standards

New Accounting Standards

On January 1, 2014, we adopted FASB ASU 2013-05, Foreign Currency Matters (Topic 830): Parent's Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity (“ASU 2013-05”). Under ASU 2013-05 when a parent sells an investment in a foreign entity and ceases to have a controlling interest in that foreign entity, or a foreign subsidiary disposes of substantially all of its assets, or control of a foreign entity is obtained in which it held an equity interest before the acquisition date, the cumulative translation adjustment should be released into net income. The adoption of ASU 2013-05 did not have a significant impact on our results of operations or financial position.

On January 1, 2014, we adopted FASB ASU 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (“ASU 2013-11”). ASU 2013-11 eliminates a diversity in practice regarding the presentation of an unrecognized tax benefit when a net operating loss carryforward or a tax credit carryforward exists. The adoption of ASU 2013-11 did not have a significant impact on the presentation of our results of operations or financial position.

In May 2014 the FASB issued FASB ASU 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”). ASU 2014-09 will be effective for fiscal years and interim periods beginning after December 15, 2016 and early application is not permitted. ASU 2014-09 provides for one of two methods of transition: retrospective application to each prior period presented; or, recognition of the cumulative effect of retrospective application of the new standard in the period of initial application. We will apply ASU 2014-09 on January 1, 2017. However, we are not yet in a position to assess the transition method we will choose, or the impact of the application on our results of operations or financial position.

In August 2014 the FASB issued FASB ASU 2014-15, Presentation of Financial Statements - Going Concern (“ASU 2014-15”).ASU 2014-15 will be effective for fiscal years and interim periods beginning after December 15, 2016 and early application is permitted. ASU 2014-15 requires that management evaluate at each annual and interim reporting period whether there is a substantial doubt about an entity’s ability to continue as a going concern within one year of the date that the financial statements are issued. We do not expect that the application of ASU 2014-15 will have an impact on the presentation of our results of operations, financial position or disclosures.

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Supplemental Cash Flow Data (Tables)

9 Months Ended

Sep. 30, 2014

Supplemental Cash Flow Data [Abstract]

Change in Operating Capital

The change in operating capital for the nine months ended September 30, 2014 and 2013 was (in millions):

	2014			2013
(Increase) decrease in accounts receivable	$	333.4		$	294.0
(Increase) decrease in work in process and other current assets	(333.5		)	(392.8		)
Increase (decrease) in accounts payable	(738.6		)	(668.9		)
Increase (decrease) in customer advances and other current liabilities	(237.7		)	97.6
Change in other assets and liabilities, net	(115.5		)	15.9
	$	(1,091.9	)	$	(654.2	)
Income taxes paid	$	420.9		$	335.2
Interest paid	$	147.1		$	134.8

In connection with the conversion of the 2032 Notes in July 2014 (see Note 5), we issued 1,217,112 shares of our common stock to satisfy the conversion premium. Based on the closing prices of our common stock on the settlement dates, these issuances resulted in a non-cash pre-tax financing activity of $89.2 million, excluding the cash tax benefit of $32.2 million.

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Operating Expenses (Tables)

9 Months Ended

Sep. 30, 2014

Operating Expenses [Abstract]

Components of Operating Expenses

Operating expenses for the three and nine months ended September 30, 2014 and 2013 were (in millions):

	Three Months				Nine Months
	2014		2013		2014		2013
Salary and service costs	$	2,813.2	$	2,585.2	$	8,230.7	$	7,733.3
Office and general expenses	502.8		497.8		1,518.5		1,490.8
Merger expenses	—		28.1		8.8		28.1
	$	3,316.0	$	3,111.1	$	9,758.0	$	9,252.2

For the nine months ended September 30, 2014 and 2013, we incurred $8.8 million and $28.1 million, respectively, of expenses in connection with the proposed merger with Publicis, which were primarily comprised of professional fees. On May 8, 2014, the proposed merger with Publicis was terminated.

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Fair Value (Tables)

9 Months Ended

Sep. 30, 2014

Fair Value [Abstract]

Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis

Financial assets and liabilities measured at fair value on a recurring basis at September 30, 2014 and December 31, 2013 were (in millions):

2014	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents	$	837.7					$	837.7
Short-term investments	12.6						12.6
Available-for-sale securities	5.2						5.2
Foreign currency and interest rate derivative instruments			$	5.4			5.4
Liabilities:
Foreign currency derivative instruments			$	2.1			$	2.1
Contingent purchase price obligations					$	241.0	241.0

2013	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents	$	2,710.5					$	2,710.5
Short-term investments	18.2						18.2
Available-for-sale securities	4.9						4.9
Foreign currency derivative instruments			$	2.2			2.2
Liabilities:
Foreign currency derivative instruments			$	0.1			$	0.1
Contingent interest derivative			2.1				2.1
Contingent purchase price obligations					$	220.2	220.2

Changes in Level 3 Contingent Purchase Price Obligations

The changes in Level 3 contingent purchase price obligations for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014			2013
January 1	$	220.2		$	266.2
Acquisitions	103.1			34.8
Revaluation and interest	0.1			(9.5		)
Payments	(74.5		)	(68.9		)
Foreign currency translation	(7.9		)	(9.3		)
September 30	$	241.0		$	213.3

Carrying Amounts and Fair Value of Financial Instruments

The carrying amount and fair value of our financial instruments at September 30, 2014 and December 31, 2013 were (in millions):

	2014				2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents	$	837.7	$	837.7	$	2,710.5	$	2,710.5
Short-term investments	12.6		12.6		18.2		18.2
Available-for-sale securities	5.2		5.2		4.9		4.9
Foreign currency and interest rate derivative instruments	5.4		5.4		2.2		2.2
Cost method investments	23.2		23.2		22.2		22.2
Liabilities:
Short-term borrowings	$	31.3	$	31.3	$	5.9	$	5.9
Foreign currency derivative instruments	2.1		2.1		0.1		0.1
Contingent interest derivative	—		—		2.1		2.1
Contingent purchase price obligations	241.0		241.0		220.2		220.2
Debt	3,779.2		3,982.6		4,033.8		4,302.7

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Changes in Accumulated Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Sep. 30, 2014

Changes in Accumulated Other Comprehensive Income (Loss) [Abstract]

Changes in accumulated other comprehensive income (loss)

The changes in accumulated other comprehensive income (loss) for the nine months ended September 30, 2014 and 2013 were (in millions):

	Unrealized Gain (Loss) on Available-for-Sale Securities			Defined Benefit Pension and Postemployment Plans			Foreign Currency Translation			Total
January 1, 2014	$	(1.6	)	$	(68.8	)	$	(121.2	)	$	(191.6	)
Other comprehensive income (loss) before reclassifications	0.3			—			(232.9		)	(232.6		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			4.1			—			4.1
Other comprehensive income (loss)	0.3			4.1			(232.9		)	(228.5		)
September 30, 2014	$	(1.3	)	$	(64.7	)	$	(354.1	)	$	(420.1	)

	Unrealized Gain (Loss) on Available-for-Sale Securities			Defined Benefit Pension and Postemployment Plans			Foreign Currency Translation			Total
January 1, 2013	$	(2.0	)	$	(89.8	)	$	(37.7	)	$	(129.5	)
Other comprehensive income (loss) before reclassifications	0.3			—			(95.9		)	(95.6		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			4.5			—			4.5
Other comprehensive income (loss)	0.3			4.5			(95.9		)	(91.1		)
September 30, 2013	$	(1.7	)	$	(85.3	)	$	(133.6	)	$	(220.6	)

Reclassifications from accumulated other comprehensive income (loss)

Reclassifications from accumulated other comprehensive income (loss) for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014		2013
Amortization of defined benefit pension and postemployment plans:
Prior service cost	$	4.8	$	4.2
Actuarial (gains) losses	2.0		3.4
Periodic benefit cost (see Note 9)	6.8		7.6
Income taxes	2.7		3.1
Periodic benefit cost, net of income taxes	$	4.1	$	4.5

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Presentation of Financial Statements

9 Months Ended

Sep. 30, 2014

Presentation of Financial Statements [Abstract]

Presentation of Financial Statements

Presentation of Financial Statements

The terms “Omnicom,” the “Company,” “we,” “our” and “us” each refer to Omnicom Group Inc. and our subsidiaries, unless the context indicates otherwise. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“U.S. GAAP” or “GAAP”) for interim financial information and Article 10 of Regulation S-X of the Securities and Exchange Commission. Accordingly, certain information and footnote disclosure have been condensed or omitted.

In our opinion, the accompanying unaudited condensed consolidated financial statements reflect all adjustments, consisting of normal recurring accruals, considered necessary for a fair presentation, in all material respects, of the information contained herein. These unaudited condensed consolidated financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2013 (“2013 10-K”). Results for the interim periods are not necessarily indicative of results that may be expected for the year.

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Net Income Per Common Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net Income Available for Common Shares:
Net income - Omnicom Group Inc.	$ 243.8	$ 196.0	$ 774.5	$ 690.7
Net income allocated to participating securities	(4.3)	(4.8)	(14.7)	(18.1)
Net income available for common shares	$ 239.5	$ 191.2	$ 759.8	$ 672.6
Weighted Average Shares:
Basic	251.4	258.2	255.6	259.0
Dilutive stock options, restricted shares and shares issuable for the conversion premium of convertible debt	1.0	1.7	1.7	1.4
Diluted	252.4	259.9	257.3	260.4
Anti-dilutive stock options and restricted shares	0	0	0	0.1
Net Income per Common Share - Omnicom Group Inc.:
Basic	$ 0.95	$ 0.74	$ 2.97	$ 2.60
Diluted	$ 0.95	$ 0.74	$ 2.95	$ 2.58

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Supplemental Cash Flow Data (Details) (USD $) In Millions, except Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Change in Operating Capital [Abstract]
(Increase) decrease in accounts receivable	$ 333.4	$ 294.0
(Increase) decrease in work in process and other current assets	(333.5)	(392.8)
Increase (decrease) in accounts payable	(738.6)	(668.9)
Increase (decrease) in customer advances and other current liabilities	(237.7)	97.6
Change in other assets and liabilities, net	(115.5)	15.9
Change in operating capital	(1,091.9)	(654.2)
Income taxes paid	420.9	335.2
Interest paid	147.1	134.8
Convertible Debt, Shares Issued for Conversion Premium	1,217,112
Convertible Debt, Fair Value of Common Stock Issued	89.2
Adjustment to Additional Paid-In Capital, Conversion of Convertible Debt	$ 32.2

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Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 837.7	$ 2,710.5
Short-term investments, at cost	12.6	18.2
Accounts receivable, net of allowance for doubtful accounts of $28.6 and $32.6	6,135.7	6,632.6
Work in process	1,528.0	1,288.0
Other current assets	1,053.2	1,003.0
Total Current Assets	9,567.2	11,652.3
Property and Equipment at cost, less accumulated depreciation of $1,257.9 and $1,230.1	713.6	737.4
Equity Method Investments	153.6	131.8
Goodwill	8,875.2	8,916.0
Intangible Assets, net of accumulated amortization of $603.6 and $552.3	387.0	386.0
Other Assets	272.0	275.2
TOTAL ASSETS	19,968.6	22,098.7
Current Liabilities:
Accounts payable	7,448.6	8,358.9
Customer advances	1,130.6	1,242.2
Current portion of debt	0.3	0.4
Short-term borrowings	31.3	5.9
Taxes payable	275.7	293.3
Other current liabilities	2,188.8	2,377.0
Total Current Liabilities	11,075.3	12,277.7
Long-Term Notes Payable	3,778.9	3,780.7
Convertible Debt	0	252.7
Long-Term Liabilities	680.0	685.1
Long-Term Deferred Tax Liabilities	732.8	832.6
Commitments and Contingent Liabilities (See Note 12)
Temporary Equity - Redeemable Noncontrolling Interests	190.2	202.0
Shareholders’ Equity:
Preferred stock	0	0
Common stock	59.6	59.6
Additional paid-in capital	842.6	817.1
Retained earnings	9,373.6	8,961.2
Accumulated other comprehensive income (loss)	(420.1)	(191.6)
Treasury stock, at cost	(6,817.4)	(6,063.9)
Total Shareholders’ Equity	3,038.3	3,582.4
Noncontrolling interests	473.1	485.5
Total Equity	3,511.4	4,067.9
TOTAL LIABILITIES AND EQUITY	$ 19,968.6	$ 22,098.7

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Condensed Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Unrealized gain (loss) on available-for-sale securities, income taxes	$ 0	$ 0	$ 0.2	$ 0.2
Foreign currency translation adjustment, income taxes	(181.7)	94.4	(128.4)	(63.6)
Defined benefit pension and postemployment plans adjustment, income taxes	$ 0.9	$ 0.7	$ 2.7	$ 3.1

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Segment Reporting (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenue	$ 3,749.6	$ 3,490.5	$ 11,122.7	$ 10,526.4
Americas
Revenue	2,227.0	2,054.4	6,608.4	6,252.3
Long-lived assets and goodwill	6,103.9	6,072.4	6,103.9	6,072.4
EMEA
Revenue	1,117.5	1,050.8	3,348.6	3,138.5
Long-lived assets and goodwill	2,902.1	2,906.1	2,902.1	2,906.1
Asia Pacific
Revenue	405.1	385.3	1,165.7	1,135.6
Long-lived assets and goodwill	$ 582.8	$ 592.1	$ 582.8	$ 592.1

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Subsequent Events

9 Months Ended

Sep. 30, 2014

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

We have evaluated events subsequent to the balance sheet date and determined there have not been any events that have occurred that would require adjustment to or disclosure in the unaudited condensed consolidated financial statements.

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Termination of Business Combination Agreement (Details)	9 Months Ended
	Sep. 30, 2014
Date of Termination of Business Combination Agreement	May 08, 2014
Date of Business Combination Agreement	Jul. 27, 2013

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Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and intangible assets at September 30, 2014 and December 31, 2013 were (in millions):

	2014						2013
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Goodwill	$	9,443.8	$	568.6	$	8,875.2	$	9,502.6	$	586.6	$	8,916.0
Intangible assets:
Purchased and internally developed software	$	296.2	$	224.6	$	71.6	$	283.2	$	217.4	$	65.8
Customer related and other	694.4		379.0		315.4		655.1		334.9		320.2
	$	990.6	$	603.6	$	387.0	$	938.3	$	552.3	$	386.0

Changes in Goodwill

Changes in goodwill for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014			2013
January 1	$	8,916.0		$	8,844.2
Acquisitions	131.4			55.5
Dispositions	(1.6		)	(8.5		)
Foreign currency translation	(170.6		)	(22.2		)
September 30	$	8,875.2		$	8,869.0

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Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash Flows from Operating Activities:
Net Income	$ 860.1	$ 771.2
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	140.3	136.6
Amortization of intangible assets	77.1	76.3
Amortization of deferred gain from termination of interest rate swaps	(5.4)	(5.5)
Income from equity method investments, net of dividends received	(0.3)	0.4
Provision for doubtful accounts	3.9	4.4
Share-based compensation	69.5	64.9
Excess tax benefit from share-based compensation	(20.2)	(34.2)
Change in operating capital	(1,091.9)	(654.2)
Net Cash Provided By Operating Activities	33.1	359.9
Cash Flows from Investing Activities:
Payments to acquire property and equipment	(138.3)	(123.3)
Payments to acquire businesses and interests in affiliates, net of cash acquired	(65.3)	(26.5)
Proceeds from investments, net	6.5	17.3
Net Cash Used In Investing Activities	(197.1)	(132.5)
Cash Flows from Financing Activities:
Proceeds from short-term debt	27.3	12.5
Redemption of convertible debt	(252.7)	(406.7)
Payments of dividends	(340.7)	(212.6)
Payments for repurchases of common stock	(864.8)	(571.3)
Proceeds from stock plans	14.6	44.8
Payments for acquisition of additional noncontrolling interests	(22.0)	(11.0)
Payments of dividends to noncontrolling interest shareholders	(83.2)	(81.1)
Payments of contingent purchase price obligations	(74.5)	(68.9)
Excess tax benefit on share-based compensation	20.2	34.2
Other, net	(21.7)	(24.2)
Net Cash Used In Financing Activities	(1,597.5)	(1,284.3)
Effect of foreign exchange rate changes on cash and cash equivalents	(111.3)	(99.9)
Net Decrease in Cash and Cash Equivalents	(1,872.8)	(1,156.8)
Cash and Cash Equivalents at the Beginning of Period	2,710.5	2,678.3
Cash and Cash Equivalents at the End of Period	$ 837.7	$ 1,521.5

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Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Allowance for doubtful accounts	$ 28.6	$ 32.6
Accumulated depreciation	1,257.9	1,230.1
Intangible assets, accumulated amortization	$ 603.6	$ 552.3

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Operating Expenses

9 Months Ended

Sep. 30, 2014

Operating Expenses [Abstract]

Operating Expenses

Operating Expenses

Operating expenses for the three and nine months ended September 30, 2014 and 2013 were (in millions):

	Three Months				Nine Months
	2014		2013		2014		2013
Salary and service costs	$	2,813.2	$	2,585.2	$	8,230.7	$	7,733.3
Office and general expenses	502.8		497.8		1,518.5		1,490.8
Merger expenses	—		28.1		8.8		28.1
	$	3,316.0	$	3,111.1	$	9,758.0	$	9,252.2

For the nine months ended September 30, 2014 and 2013, we incurred $8.8 million and $28.1 million, respectively, of expenses in connection with the proposed merger with Publicis, which were primarily comprised of professional fees. On May 8, 2014, the proposed merger with Publicis was terminated.

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Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 15, 2014
Document Information [Line Items]
Entity Registrant Name	OMNICOM GROUP INC.
Entity Central Index Key	0000029989
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		248,179,673

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Supplemental Cash Flow Data

9 Months Ended

Sep. 30, 2014

Supplemental Cash Flow Data [Abstract]

Supplemental Cash Flow Data

Supplemental Cash Flow Data

The change in operating capital for the nine months ended September 30, 2014 and 2013 was (in millions):

	2014			2013
(Increase) decrease in accounts receivable	$	333.4		$	294.0
(Increase) decrease in work in process and other current assets	(333.5		)	(392.8		)
Increase (decrease) in accounts payable	(738.6		)	(668.9		)
Increase (decrease) in customer advances and other current liabilities	(237.7		)	97.6
Change in other assets and liabilities, net	(115.5		)	15.9
	$	(1,091.9	)	$	(654.2	)
Income taxes paid	$	420.9		$	335.2
Interest paid	$	147.1		$	134.8

In connection with the conversion of the 2032 Notes in July 2014 (see Note 5), we issued 1,217,112 shares of our common stock to satisfy the conversion premium. Based on the closing prices of our common stock on the settlement dates, these issuances resulted in a non-cash pre-tax financing activity of $89.2 million, excluding the cash tax benefit of $32.2 million.

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Condensed Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenue	$ 3,749.6	$ 3,490.5	$ 11,122.7	$ 10,526.4
Operating Expenses	3,316.0	3,111.1	9,758.0	9,252.2
Operating Income	433.6	379.4	1,364.7	1,274.2
Interest Expense	42.2	50.5	135.4	148.8
Interest Income	10.8	7.7	31.3	24.2
Income Before Income Taxes and Income From Equity Method Investments	402.2	336.6	1,260.6	1,149.6
Income Tax Expense	134.4	116.2	410.9	388.9
Income From Equity Method Investments	5.8	4.3	10.4	10.5
Net Income	273.6	224.7	860.1	771.2
Net Income Attributed To Noncontrolling Interests	(29.8)	(28.7)	(85.6)	(80.5)
Net Income - Omnicom Group Inc.	$ 243.8	$ 196.0	$ 774.5	$ 690.7
Net Income Per Share - Omnicom Group Inc.:
Basic	$ 0.95	$ 0.74	$ 2.97	$ 2.60
Diluted	$ 0.95	$ 0.74	$ 2.95	$ 2.58
Dividends Declared Per Common Share	$ 0.50	$ 0.40	$ 1.40	$ 1.20

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Debt

9 Months Ended

Sep. 30, 2014

Debt [Abstract]

Debt

Debt

Lines of Credit

On July 31, 2014, we amended our $2.5 billion line of credit (“Credit Agreement”) to extend the term to July 31, 2019. We have the ability to classify borrowings under the Credit Agreement as long-term. In addition, we can issue up to $2.0 billion of commercial paper. At September 30, 2014 and December 31, 2013 there were no outstanding commercial paper issuances or borrowings under the Credit Agreement. We also have uncommitted lines of credit aggregating $950.7 million and $1,051.5 million at September 30, 2014 and December 31, 2013, respectively.

Available and unused lines of credit at September 30, 2014 and December 31, 2013 were (in millions):

	2014		2013
Credit Agreement	$	2,500.0	$	2,500.0
Uncommitted lines of credit	950.7		1,051.5
Available and unused lines of credit	$	3,450.7	$	3,551.5

The Credit Agreement contains financial covenants that require us to maintain a Leverage Ratio of consolidated indebtedness to consolidated EBITDA of no more than 3 times for the most recently ended 12-month period (under the Credit Agreement, EBITDA is defined as earnings before interest, taxes, depreciation and amortization) and an Interest Coverage Ratio of consolidated EBITDA to interest expense of at least 5 times for the most recently ended 12-month period.At September 30, 2014, we were in compliance with these covenants, as our Leverage Ratio was 1.7 times and our Interest Coverage Ratio was 12 times. The Credit Agreement does not limit our ability to declare or pay dividends.

Short-Term Borrowings

Short-term borrowings of $31.3 million and $5.9 million at September 30, 2014 and December 31, 2013, respectively, represent bank overdrafts and credit lines of our international subsidiaries. The bank overdrafts and credit lines are treated as unsecured loans pursuant to the agreements supporting the facilities. Due to the short-term nature of these instruments, carrying value approximates fair value.

Long-Term Notes Payable

Long-term notes payable at September 30, 2014 and December 31, 2013 were (in millions):

	2014		2013
5.9% Senior Notes due April 15, 2016	$	1,000.0	$	1,000.0
6.25% Senior Notes due July 15, 2019	500.0		500.0
4.45% Senior Notes due August 15, 2020	1,000.0		1,000.0
3.625% Senior Notes due May 1, 2022	1,250.0		1,250.0
Other notes and loans	0.3		0.5
	3,750.3		3,750.5
Unamortized premium (discount) on Senior Notes, net	13.8		14.7
Adjustment to carrying value for interest rate swaps	15.1		15.9
	3,779.2		3,781.1
Less current portion	0.3		0.4
Long-term notes payable	$	3,778.9	$	3,780.7

On May 1, 2014, we entered into an interest rate swap on the $1.25 billion principal amount of our 3.625% Senior Notes due May 1, 2022 (“2022 Notes”) and on September 29, 2014, we entered into an interest rate swap on the $1 billion principal amount of our 4.45% Senior Notes due August 15, 2020 (“2020 Notes”). The interest rate swaps hedge the risk of changes in fair value of the 2022 Notes and the 2020 Notes attributable to changes in the benchmark LIBOR interest rate. Under the terms of the swaps, we receive fixed interest rate payments and pay a variable interest rate, based on LIBOR, on the total principal amount of the 2022 Notes and the 2020 Notes, respectively. The swaps qualify as a hedge for accounting purposes and were designated as a fair value hedge on the 2022 Notes and 2020 Notes, respectively. The swaps have the economic effect of converting the 2022 Notes and the 2020 Notes from fixed rate debt to floating rate debt. Gains and losses attributed to changes in the fair value of the interest rate swaps substantially offset changes in the fair value of the 2022 Notes and the 2020 Notes, respectively, attributed to changes in the benchmark interest rate. The net interest settlement is recorded in interest expense.

Convertible Debt

At September 30, 2014, there was no convertible debt outstanding. Convertible debt outstanding at December 31, 2013 was comprised of our $252.7 million Convertible Notes due July 31, 2032 (“2032 Notes”).

On June 5, 2014, we called the 2032 Notes for redemption on July 31, 2014 at a redemption price of 100% of the principal amount of the notes. As provided in the indenture governing the 2032 Notes, prior to July 29, 2014, the noteholders had the right to convert their notes into shares of our common stock at a conversion rate of 18.463 shares per $1,000 principal amount. Substantially all noteholders exercised their conversion right. We paid $252.7 million in cash representing the principal amount of the notes that were converted and issued 1,217,112 shares of our common stock to satisfy the conversion premium. On July 31, 2014, we redeemed any 2032 Notes that were not converted.

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Goodwill and Intangible Assets

9 Months Ended

Sep. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and Intangible Assets

Goodwill and intangible assets at September 30, 2014 and December 31, 2013 were (in millions):

	2014						2013
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Goodwill	$	9,443.8	$	568.6	$	8,875.2	$	9,502.6	$	586.6	$	8,916.0
Intangible assets:
Purchased and internally developed software	$	296.2	$	224.6	$	71.6	$	283.2	$	217.4	$	65.8
Customer related and other	694.4		379.0		315.4		655.1		334.9		320.2
	$	990.6	$	603.6	$	387.0	$	938.3	$	552.3	$	386.0

We evaluate goodwill for impairment at least annually at the end of the second quarter of the year and whenever events or circumstances indicate the carrying value may not be recoverable. At June 30, 2014, we performed Step 1 of the annual impairment test and compared the fair value of each of our reporting units to its respective carrying value, including goodwill. Based on the results of our impairment test, we concluded that our goodwill was not impaired at June 30, 2014 because the fair value of each of our reporting units was substantially in excess of their respective net book value.

Changes in goodwill for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014			2013
January 1	$	8,916.0		$	8,844.2
Acquisitions	131.4			55.5
Dispositions	(1.6		)	(8.5		)
Foreign currency translation	(170.6		)	(22.2		)
September 30	$	8,875.2		$	8,869.0

There were no goodwill impairment losses recorded in the first nine months of 2014 or 2013 and there are no accumulated goodwill impairment losses. Goodwill for acquisitions completed in 2014 and 2013 includes $27.6 million and $9.2 million, respectively, of goodwill attributed to noncontrolling interests in the acquired businesses.

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Net Income Per Common Share (Tables)

9 Months Ended

Sep. 30, 2014

Net Income per Common Share [Abstract]

Computations of Basic and Diluted Net Income per Common Share - Omnicom Group Inc.

The computation of basic and diluted net income per common share for the three and nine months ended September 30, 2014 and 2013 is (in millions, except per share amounts):

	Three Months						Nine Months
	2014			2013			2014			2013
Net Income Available for Common Shares:
Net income - Omnicom Group Inc.	$	243.8		$	196.0		$	774.5		$	690.7
Net income allocated to participating securities	(4.3		)	(4.8		)	(14.7		)	(18.1		)
	$	239.5		$	191.2		$	759.8		$	672.6
Weighted Average Shares:
Basic	251.4			258.2			255.6			259.0
Dilutive stock options, restricted shares and shares issuable for the conversion premium of convertible debt	1.0			1.7			1.7			1.4
Diluted	252.4			259.9			257.3			260.4
Anti-dilutive stock options and restricted shares	—			—			—			0.1
Net Income per Common Share - Omnicom Group Inc.:
Basic	$	0.95		$	0.74		$	2.97		$	2.60
Diluted	$	0.95		$	0.74		$	2.95		$	2.58

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Commitments and Contingent Liabilities

9 Months Ended

Sep. 30, 2014

Commitments and Contingent Liabilities [Abstract]

Commitments and Contingent Liabilities

Commitments and Contingent Liabilities

In August 2013, several putative class actions challenging the proposed merger of Omnicom and Publicis were filed on behalf of Omnicom shareholders and named as defendants Omnicom and its board of directors, as well as Publicis and Publicis Omnicom Group. The suits alleged that the members of the Omnicom board breached their fiduciary duties by, among other things, approving a merger that was purportedly detrimental to Omnicom’s shareholders. The actions also alleged that Publicis aided and abetted the Omnicom board’s breach of their fiduciary duties. In October 2013, all the actions were consolidated with each other into one case. On May 8, 2014, the proposed merger of Omnicom and Publicis was terminated. On May 22, 2014, a stipulation of voluntary discontinuance was submitted to the Court. The Court so-ordered the stipulation and dismissed the case on May 23, 2014.

In the ordinary course of business, we are involved in various other legal proceedings. We do not presently expect that these other proceedings will have a material adverse effect on our results of operations or financial position.

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Income Taxes

9 Months Ended

Sep. 30, 2014

Income Taxes [Abstract]

Income Taxes

Income Taxes

The effective tax rate for the nine months ended September 30, 2014 reflects the recognition of an income tax benefit of $11.4 million related to previously incurred expenses for the proposed merger with Publicis. On May 8, 2014, the proposed merger with Publicis was terminated. Prior to the termination of the proposed merger, the majority of the merger costs were capitalized for income tax purposes and the related tax benefits were not recorded. Because the proposed merger was terminated, the merger costs were no longer required to be capitalized for income tax purposes.

In connection with the conversion of the 2032 Notes (see Note 5), we reclassified $66.2 million, representing the excess of the accreted value of the notes for income tax purposes over the conversion value, from long-term deferred tax liability to current taxes payable. In addition, we reclassified $32.2 million, representing the difference between the issue price of the notes and the conversion value, from long-term deferred tax liability to additional paid-in capital.

At September 30, 2014, our unrecognized tax benefits were $139.3 million. Of this amount, approximately $58.5 million would affect our effective tax rate upon resolution of the uncertain tax positions.

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Segment Reporting

9 Months Ended

Sep. 30, 2014

Segment Reporting [Abstract]

Segment Reporting

Segment Reporting

Our wholly and partially owned agencies operate within the advertising, marketing and corporate communications services industry. These agencies are organized into agency networks, virtual client networks, regional reporting units and operating groups. Consistent with our fundamental business strategy, our agencies serve similar clients, in similar industries and, in many cases, the same clients across a variety of geographic regions. In addition, our agency networks have similar economic characteristics including similar costs and long-term profit contribution. The main economic components of each agency are employee compensation and related costs and direct service costs and office and general costs, which include rent and occupancy costs, technology costs and other overhead expenses. Therefore, given these similarities, we aggregate our operating segments, which are our five agency networks, into one reporting segment.

Revenue and long-lived assets and goodwill by geographic area as of and for the periods ended September 30, 2014 and 2013 were (in millions):

	Americas		EMEA		Asia Pacific
2014
Revenue - Three months ended	$	2,227.0	$	1,117.5	$	405.1
Revenue - Nine months ended	6,608.4		3,348.6		1,165.7
Long-lived assets and goodwill	6,103.9		2,902.1		582.8
2013
Revenue - Three months ended	$	2,054.4	$	1,050.8	$	385.3
Revenue - Nine months ended	6,252.3		3,138.5		1,135.6
Long-lived assets and goodwill	6,072.4		2,906.1		592.1

The Americas is composed of North America, which includes the United States, Canada and Puerto Rico, and Latin America, which includes Mexico. EMEA is composed of various Euro currency countries, the United Kingdom, other European countries that have not adopted the European Union Monetary standard, the Middle East and Africa. Asia Pacific is composed of Australia, China, India, Japan, Korea, New Zealand, Singapore and other Asian countries.

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Termination of Business Combination Agreement

9 Months Ended

Sep. 30, 2014

Termination of Business Combination Agreement [Abstract]

Termination of Business Combination Agreement

Termination of Business Combination Agreement

On May 8, 2014, the Company and Publicis Groupe S.A. (“Publicis”) entered into a termination agreement (“Termination Agreement”) under which the Company and Publicis mutually agreed to terminate their proposed merger in view of difficulties in completing the transaction within a reasonable timeframe.

Under the Termination Agreement, the Company and Publicis mutually consented to terminate their Business Combination Agreement, dated July 27, 2013 (“Business Combination Agreement”), governing the proposed combination of the parties’ respective businesses, and mutually agreed to release each other from all claims, obligations and liabilities arising out of, in connection with or relating to the Business Combination Agreement. The Termination Agreement provided that no termination fee was payable by either party.

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Pension and Other Postemployment Benefits

9 Months Ended

Sep. 30, 2014

Pension and Other Postemployment Benefits [Abstract]

Pension and Other Postemployment Benefits

Pension and Other Postemployment Benefits

Net periodic benefit cost is included in the salary and service costs component of operating expenses.

Defined Benefit Pension Plans

The components of net periodic benefit cost for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014			2013
Service cost	$	5.5		$	3.3
Interest cost	5.5			4.6
Expected return on plan assets	(2.2		)	(2.1		)
Amortization of prior service cost	3.2			2.7
Amortization of actuarial (gains) losses	1.4			2.4
	$	13.4		$	10.9

We contributed $0.7 million and $3.1 million to our defined benefit pension plans in the nine months ended September 30, 2014 and 2013, respectively.

Postemployment Arrangements

The components of net periodic benefit cost for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014		2013
Service cost	$	3.0	$	3.0
Interest cost	3.3		3.3
Amortization of prior service cost	1.6		1.5
Amortization of actuarial (gains) losses	0.6		1.0
	$	8.5	$	8.8

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Debt (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Lines of Credit [Abstract]
Available and unused lines of credit	$ 3,450,700,000	$ 3,551,500,000
Short-Term Borrowings [Abstract]
Short-term borrowings	31,300,000	5,900,000
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	3,750,300,000	3,750,500,000
Unamortized premium (discount) on Senior Notes, net	13,800,000	14,700,000
Adjustment to carrying value for interest rate swaps	15,100,000	15,900,000
Long-term notes payable, total	3,779,200,000	3,781,100,000
Long-term notes payable, current portion	300,000	400,000
Long-Term Notes Payable	3,778,900,000	3,780,700,000
Convertible Debt [Abstract]
Convertible Debt	0	252,700,000
Long-Term Notes Payable and Convertible Debt [Abstract]
Convertible Debt, Shares Issued for Conversion Premium	1,217,112
Credit Agreement expiring October 2016 [Member]
Lines of Credit [Abstract]
Credit Agreement, maximum borrowing capacity	2,500,000,000
Credit Agreement, expiration date	Jul. 31, 2019
Available and unused lines of credit	2,500,000,000	2,500,000,000
Credit Agreement, covenant terms	The Credit Agreement contains financial covenants that require us to maintain a Leverage Ratio of consolidated indebtedness to consolidated EBITDA of no more than 3 times for the most recently ended 12-month period (under the Credit Agreement, EBITDA is defined as earnings before interest, taxes, depreciation and amortization) and an Interest Coverage Ratio of consolidated EBITDA to interest expense of at least 5 times for the most recently ended 12-month period.
Credit Agreement, covenant compliance	At September 30, 2014, we were in compliance with these covenants, as our Leverage Ratio was 1.7 times and our Interest Coverage Ratio was 12 times.
Credit Agreement expiring October 2016 [Member] | Commercial Paper [Member]
Lines of Credit [Abstract]
Credit Agreement, maximum borrowing capacity	2,000,000,000
Uncommitted lines of credit [Member]
Lines of Credit [Abstract]
Available and unused lines of credit	950,700,000	1,051,500,000
5.9% Senior Notes due April 15, 2016
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	1,000,000,000	1,000,000,000
Long-Term Notes Payable and Convertible Debt [Abstract]
Interest rate	5.90%
Maturity date	Apr. 15, 2016
6.25% Senior Notes due July 15, 2019
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	500,000,000	500,000,000
Long-Term Notes Payable and Convertible Debt [Abstract]
Interest rate	6.25%
Maturity date	Jul. 15, 2019
4.45% Senior Notes due August 15, 2020
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	1,000,000,000	1,000,000,000
Long-Term Notes Payable and Convertible Debt [Abstract]
Interest rate	4.45%
Maturity date	Aug. 15, 2020
3.625% Senior Notes due May 1, 2022
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	1,250,000,000	1,250,000,000
Long-Term Notes Payable and Convertible Debt [Abstract]
Interest rate	3.625%
Maturity date	May 01, 2022
Other notes and loans
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	300,000	500,000
Convertible Notes due July 31, 2032
Convertible Debt [Abstract]
Convertible Debt	0	252,700,000
Long-Term Notes Payable and Convertible Debt [Abstract]
Convertible Debt, Call Date	Jun. 05, 2014
Convertible Debt, Repurchase Date	Jul. 31, 2014
Convertible Debt, Percentage of Principal Amount Redeemed	100.00%
Convertible Debt, Latest Conversion Date	Jul. 29, 2014
Convertible Debt, Conversion Rate	18.463
Convertible Debt, Principle Amount Settled in Cash	252,700,000
Convertible Debt, Shares Issued for Conversion Premium	1,217,112
Interest Rate Swaps on 2022 Notes [Member]
Long-Term Notes Payable and Convertible Debt [Abstract]
Interest Rate Swaps, Inception Date	May 01, 2014
Interest Rate Swaps, Amount of Hedged Item	1,250,000,000
Interest Rate Swaps on 2020 Notes [Member]
Long-Term Notes Payable and Convertible Debt [Abstract]
Interest Rate Swaps, Inception Date	Sep. 29, 2014
Interest Rate Swaps, Amount of Hedged Item	$ 1,000,000,000

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Changes in Accumulated Other Comprehensive Income (Loss)

9 Months Ended

Sep. 30, 2014

Changes in Accumulated Other Comprehensive Income (Loss) [Abstract]

Changes in Accumulated Other Comprehensive Income (Loss)

Changes in Accumulated Other Comprehensive Income (Loss)

The changes in accumulated other comprehensive income (loss) for the nine months ended September 30, 2014 and 2013 were (in millions):

	Unrealized Gain (Loss) on Available-for-Sale Securities			Defined Benefit Pension and Postemployment Plans			Foreign Currency Translation			Total
January 1, 2014	$	(1.6	)	$	(68.8	)	$	(121.2	)	$	(191.6	)
Other comprehensive income (loss) before reclassifications	0.3			—			(232.9		)	(232.6		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			4.1			—			4.1
Other comprehensive income (loss)	0.3			4.1			(232.9		)	(228.5		)
September 30, 2014	$	(1.3	)	$	(64.7	)	$	(354.1	)	$	(420.1	)

	Unrealized Gain (Loss) on Available-for-Sale Securities			Defined Benefit Pension and Postemployment Plans			Foreign Currency Translation			Total
January 1, 2013	$	(2.0	)	$	(89.8	)	$	(37.7	)	$	(129.5	)
Other comprehensive income (loss) before reclassifications	0.3			—			(95.9		)	(95.6		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			4.5			—			4.5
Other comprehensive income (loss)	0.3			4.5			(95.9		)	(91.1		)
September 30, 2013	$	(1.7	)	$	(85.3	)	$	(133.6	)	$	(220.6	)

Reclassifications from accumulated other comprehensive income (loss) for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014		2013
Amortization of defined benefit pension and postemployment plans:
Prior service cost	$	4.8	$	4.2
Actuarial (gains) losses	2.0		3.4
Periodic benefit cost (see Note 9)	6.8		7.6
Income taxes	2.7		3.1
Periodic benefit cost, net of income taxes	$	4.1	$	4.5

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Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2014

Segment Reporting [Abstract]

Revenue and Long-Lived Assets and Goodwill by Geographic Area

Revenue and long-lived assets and goodwill by geographic area as of and for the periods ended September 30, 2014 and 2013 were (in millions):

	Americas		EMEA		Asia Pacific
2014
Revenue - Three months ended	$	2,227.0	$	1,117.5	$	405.1
Revenue - Nine months ended	6,608.4		3,348.6		1,165.7
Long-lived assets and goodwill	6,103.9		2,902.1		582.8
2013
Revenue - Three months ended	$	2,054.4	$	1,050.8	$	385.3
Revenue - Nine months ended	6,252.3		3,138.5		1,135.6
Long-lived assets and goodwill	6,072.4		2,906.1		592.1

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Fair Value (Details) (USD $) In Millions, unless otherwise specified			9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Contingent purchase price obligations	Sep. 30, 2013 Contingent purchase price obligations	Sep. 30, 2014 Contingent purchase price obligations Interest Expense [Member]	Sep. 30, 2013 Contingent purchase price obligations Interest Expense [Member]	Sep. 30, 2014 Carrying Amount	Dec. 31, 2013 Carrying Amount	Sep. 30, 2014 Fair Value, Measurements, Recurring [Member] Level 1	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Level 1	Sep. 30, 2014 Fair Value, Measurements, Recurring [Member] Level 2	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Level 2	Sep. 30, 2014 Fair Value, Measurements, Recurring [Member] Level 3	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Level 3	Sep. 30, 2014 Fair Value, Measurements, Recurring [Member] Total	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Total
Assets:
Cash and cash equivalents	$ 837.7	$ 2,710.5					$ 837.7	$ 2,710.5	$ 837.7	$ 2,710.5					$ 837.7	$ 2,710.5
Short-term investments	12.6	18.2					12.6	18.2	12.6	18.2					12.6	18.2
Available-for-sale securities	5.2	4.9					5.2	4.9	5.2	4.9					5.2	4.9
Foreign currency and interest rate derivative instruments	5.4	2.2					5.4	2.2			5.4				5.4
Foreign currency derivative instruments												2.2				2.2
Cost method investments	23.2	22.2					23.2	22.2
Liabilities:
Short-term borrowings	31.3	5.9					31.3	5.9
Foreign currency derivative instruments	2.1	0.1					2.1	0.1			2.1	0.1			2.1	0.1
Contingent interest derivative	0	2.1					0	2.1				2.1				2.1
Contingent purchase price obligations	241.0	220.2					241.0	220.2					241.0	220.2	241.0	220.2
Debt	3,982.6	4,302.7					3,779.2	4,033.8
Changes in Level 3 Contingent Purchase Price Obligations [Roll Forward]
January 1			220.2	266.2
Acquisitions			103.1	34.8
Revaluation and interest					0.1	(9.5)
Payments			(74.5)	(68.9)
Foreign currency translation			(7.9)	(9.3)
September 30			$ 241.0	$ 213.3

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Condensed Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net Income	$ 273.6	$ 224.7	$ 860.1	$ 771.2
Unrealized gain (loss) on available-for-sale securities, net of income taxes of $0.2 and $0.2 for the nine months ended September 30, 2014 and 2013, respectively	0.1	0	0.3	0.3
Foreign currency translation adjustment, net of income taxes of ($181.7) and $94.4 for the three months and ($128.4) and ($63.6) for the nine months ended September 30, 2014 and 2013, respectively	(352.6)	183.4	(249.3)	(123.3)
Defined benefit pension and postemployment plans adjustment, net of income taxes of $0.9 and $0.7 for the three months and $2.7 and $3.1 for the nine months ended September 30, 2014 and 2013, respectively	1.3	1.1	4.1	4.5
Other Comprehensive Income (Loss)	(351.2)	184.5	(244.9)	(118.5)
Comprehensive Income	(77.6)	409.2	615.2	652.7
Comprehensive Income Attributed to Noncontrolling Interests	(2.2)	(36.4)	(69.2)	(53.1)
Comprehensive Income - Omnicom Group Inc.	$ (79.8)	$ 372.8	$ 546.0	$ 599.6

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Net Income Per Common Share

9 Months Ended

Sep. 30, 2014

Net Income per Common Share [Abstract]

Net Income per Common Share

Net Income per Common Share

The computation of basic and diluted net income per common share for the three and nine months ended September 30, 2014 and 2013 is (in millions, except per share amounts):

	Three Months						Nine Months
	2014			2013			2014			2013
Net Income Available for Common Shares:
Net income - Omnicom Group Inc.	$	243.8		$	196.0		$	774.5		$	690.7
Net income allocated to participating securities	(4.3		)	(4.8		)	(14.7		)	(18.1		)
	$	239.5		$	191.2		$	759.8		$	672.6
Weighted Average Shares:
Basic	251.4			258.2			255.6			259.0
Dilutive stock options, restricted shares and shares issuable for the conversion premium of convertible debt	1.0			1.7			1.7			1.4
Diluted	252.4			259.9			257.3			260.4
Anti-dilutive stock options and restricted shares	—			—			—			0.1
Net Income per Common Share - Omnicom Group Inc.:
Basic	$	0.95		$	0.74		$	2.97		$	2.60
Diluted	$	0.95		$	0.74		$	2.95		$	2.58

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Pension and Other Postemployment Benefits (Tables)

9 Months Ended

Sep. 30, 2014

Defined Benefit Pension Plans [Member]

Components of Net Periodic Benefit Cost

Defined Benefit Pension Plans

The components of net periodic benefit cost for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014			2013
Service cost	$	5.5		$	3.3
Interest cost	5.5			4.6
Expected return on plan assets	(2.2		)	(2.1		)
Amortization of prior service cost	3.2			2.7
Amortization of actuarial (gains) losses	1.4			2.4
	$	13.4		$	10.9

Postemployment Arrangements [Member]

Components of Net Periodic Benefit Cost

Postemployment Arrangements

The components of net periodic benefit cost for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014		2013
Service cost	$	3.0	$	3.0
Interest cost	3.3		3.3
Amortization of prior service cost	1.6		1.5
Amortization of actuarial (gains) losses	0.6		1.0
	$	8.5	$	8.8

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Pension and Other Postemployment Benefits (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Defined Benefit Pension Plans [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	$ 5.5	$ 3.3
Interest cost	5.5	4.6
Expected return on plan assets	(2.2)	(2.1)
Amortization of prior service cost	3.2	2.7
Amortization of actuarial (gains) losses	1.4	2.4
Net periodic benefit cost	13.4	10.9
Defined benefit pension plans, contributions by employer	0.7	3.1
Postemployment Arrangements [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	3.0	3.0
Interest cost	3.3	3.3
Amortization of prior service cost	1.6	1.5
Amortization of actuarial (gains) losses	0.6	1.0
Net periodic benefit cost	$ 8.5	$ 8.8

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Fair Value

9 Months Ended

Sep. 30, 2014

Fair Value [Abstract]

Fair Value

Fair Value

Financial assets and liabilities measured at fair value on a recurring basis at September 30, 2014 and December 31, 2013 were (in millions):

2014	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents	$	837.7					$	837.7
Short-term investments	12.6						12.6
Available-for-sale securities	5.2						5.2
Foreign currency and interest rate derivative instruments			$	5.4			5.4
Liabilities:
Foreign currency derivative instruments			$	2.1			$	2.1
Contingent purchase price obligations					$	241.0	241.0

2013	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents	$	2,710.5					$	2,710.5
Short-term investments	18.2						18.2
Available-for-sale securities	4.9						4.9
Foreign currency derivative instruments			$	2.2			2.2
Liabilities:
Foreign currency derivative instruments			$	0.1			$	0.1
Contingent interest derivative			2.1				2.1
Contingent purchase price obligations					$	220.2	220.2

The changes in Level 3 contingent purchase price obligations for the nine months ended September 30, 2014 and 2013 were (in millions):

	2014			2013
January 1	$	220.2		$	266.2
Acquisitions	103.1			34.8
Revaluation and interest	0.1			(9.5		)
Payments	(74.5		)	(68.9		)
Foreign currency translation	(7.9		)	(9.3		)
September 30	$	241.0		$	213.3

The carrying amount and fair value of our financial instruments at September 30, 2014 and December 31, 2013 were (in millions):

	2014				2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents	$	837.7	$	837.7	$	2,710.5	$	2,710.5
Short-term investments	12.6		12.6		18.2		18.2
Available-for-sale securities	5.2		5.2		4.9		4.9
Foreign currency and interest rate derivative instruments	5.4		5.4		2.2		2.2
Cost method investments	23.2		23.2		22.2		22.2
Liabilities:
Short-term borrowings	$	31.3	$	31.3	$	5.9	$	5.9
Foreign currency derivative instruments	2.1		2.1		0.1		0.1
Contingent interest derivative	—		—		2.1		2.1
Contingent purchase price obligations	241.0		241.0		220.2		220.2
Debt	3,779.2		3,982.6		4,033.8		4,302.7

The estimated fair value of the foreign currency and interest rate derivative instruments is determined using model-derived valuations, taking into consideration foreign currency rates for the foreign currency derivatives and readily observable inputs for LIBOR interest rates and yield curves to derive the present value of the future cash flows for the interest rate swap derivatives and counterparty credit risk for each. The estimated fair value of the contingent purchase price obligations is calculated in accordance with the terms of each acquisition agreement and is discounted. The fair value of debt is based on quoted market prices.