10-K

______________________________________________________________________________________________________

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

____________________________________________________________

FORM 10-K

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR FISCAL YEAR ENDED DECEMBER 31, 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)	(I.R.S. Employer Identification No.)
437 Madison Avenue, New York, NY	10022
(Address of principal executive offices)	(Zip Code)

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

____________________________________________________________

Securities Registered Pursuant to Section 12(b) of the Act:

Title of each class	Name of each exchange on which registered
Common Stock, $.15 Par Value	New York Stock Exchange

Securities Registered Pursuant to Section 12(g) of the Act: None

____________________________________________________________

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Yes  þ No o

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

Yes  o No þ

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 twelve 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 twelve 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 if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. þ

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

____________________________________________________________

The aggregate market value of the voting and non-voting common stock held by non-affiliates as of June 30, 2014 was $17,860,780,000.

As of January 30, 2015, there were 246,720,508 shares of Omnicom Group Inc. Common Stock outstanding.

Portions of the Omnicom Group Inc. Definitive Proxy Statement for the Annual Meeting of Shareholders scheduled to be held on May 18, 2015 are incorporated by reference into Part III of this report to the extent described herein.

OMNICOM GROUP INC.

ANNUAL REPORT ON FORM 10-K FOR THE YEAR ENDED DECEMBER 31, 2014

TABLE OF CONTENTS

		Page
	PART I
Item 1	Business	1
Item 1A.	Risk Factors	3
Item 1B.	Unresolved Staff Comments	6
Item 2.	Properties	6
Item 3.	Legal Proceedings	6
Item 4.	Mine Safety Disclosures	6
	PART II
Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	7
Item 6.	Selected Financial Data	8
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	8
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	28
Item 8.	Financial Statements and Supplementary Data	29
Item 9.	Changes in and Disagreements With Accountants on Accounting and Financial Disclosure	29
Item 9A.	Controls and Procedures	30
Item 9B.	Other Information	30
	PART III
Item 10.	Directors, Executive Officers and Corporate Governance	31
Item 11.	Executive Compensation	31
Item 12.	Security Ownership of Certain Beneficial Owners and Management and      Related Stockholder Matters	31
Item 13.	Certain Relationships and Related Transactions, and Director Independence	31
Item 14.	Principal Accounting Fees and Services	31
	PART IV
Item 15.	Exhibits, Financial Statement Schedules	31
Signatures		35
Management Report on Internal Control Over Financial Reporting		F-1
Reports of Independent Registered Public Accounting Firm		F-2
Consolidated Financial Statements		F-4
Notes to Consolidated Financial Statements		F-9
Selected Quarterly Financial Data		F-35

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FORWARD-LOOKING STATEMENTS

Certain statements in this Annual Report on Form 10-K 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 advertising, marketing and corporate 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 may affect the Company’s business, including those described in Item 1A, “Risk Factors” and Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in this report. Except as required under applicable law, the Company does not assume any obligation to update these forward-looking statements.

AVAILABLE INFORMATION

We file annual, quarterly and current reports and any amendments to those reports, proxy statements and other information with the U.S. Securities and Exchange Commission, or SEC. Documents we file with the SEC are available free of charge on our website at www.omnicomgroup.com/investorrelations, as soon as reasonably practicable after such material is filed with the SEC. The information included on or available through our website is not part of this or any other report we file with the SEC. Any document that we file with the SEC is available on the SEC’s website at www.sec.gov and also may be read and copied at the SEC’s Public Reference Room located at 100 F Street, N.E., Washington, DC 20549. Please call the SEC at 1-800-SEC-0330 for further information regarding the operation of the Public Reference Room.

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PART I

Introduction

This report is both our 2014 annual report to shareholders and our 2014 Annual Report on Form 10-K required under the federal securities laws.

Omnicom Group Inc. is a leading global marketing and corporate communications company. Omnicom's branded networks and agencies provide advertising, marketing and corporate communications services to over 5,000 clients in more than 100 countries. The terms “Omnicom,” “the Company,” “we,” “our” and “us” each refer to Omnicom Group Inc. and our subsidiaries unless the context indicates otherwise.

Item 1. Business

Our Business

Omnicom is a strategic holding company and was formed in 1986 by the merger of several leading advertising, marketing and corporate communications companies. As a leading global provider of advertising, marketing and corporate communications services, we operate in a highly competitive industry. The proliferation of media channels, including the rapid development and integration of interactive technologies and mediums, has fragmented consumer audiences targeted by our clients. These developments make it more complex for marketers to reach their target audiences in a cost-effective way, causing them to turn to service providers such as Omnicom for a customized mix of advertising and marketing services designed to make the best use of their total marketing expenditures.

Our branded networks and agencies operate in all major markets around the world and provide a comprehensive range of services, which we group into four fundamental disciplines: advertising, customer relationship management, or CRM, public relations and specialty communications. The services included in these disciplines are:

advertising	investor relations
brand consultancy	marketing research
content marketing	media planning and buying
corporate social responsibility consulting	mobile marketing
crisis communications	multi-cultural marketing
custom publishing	non-profit marketing
data analytics	organizational communications
database management	package design
direct marketing	product placement
entertainment marketing	promotional marketing
environmental design	public affairs
experiential marketing	public relations
field marketing	reputation consulting
financial/corporate business-to-business advertising	retail marketing
graphic arts/digital imaging	search engine marketing
healthcare communications	social media marketing
instore design	sports and event marketing
interactive marketing

Although the medium used to reach a client’s target audience may differ across each of these disciplines, we develop and deliver the marketing message in a similar way by providing client-specific advertising and marketing services.

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 to deliver our services and allocate our resources based on the specific requirements of our clients. As clients increase their demands for marketing effectiveness and efficiency, they have tended to consolidate their business with larger, multi-disciplinary agencies or integrated groups of agencies. Accordingly, our business model requires that multiple agencies within Omnicom collaborate in formal and informal virtual networks that cut across internal organizational structures to

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execute against our clients’ specific marketing requirements. We believe that this organizational philosophy, and our ability to execute it, differentiates us from our competitors.

Our agency networks and our virtual networks provide us with the ability to integrate services across all disciplines and geographies. This means that the delivery of our services can, and does, take place across agencies, networks and geographic regions simultaneously. Further, we believe that our virtual network strategy facilitates better integration of services required by the demands of the marketplace for our services. Our over-arching business strategy is to continue to use our virtual networks to grow our business relationships with our clients.

The various components of our business and material factors that affected us in 2014 are discussed in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” or MD&A, of this report. None of our acquisitions or dispositions, individually or in the aggregate, in the three year period ended December 31, 2014 was material to our financial position or results of operations. For information concerning our acquisitions, see Note 4 to the consolidated financial statements.

Geographic Regions and Segments

Our revenue is almost evenly divided between our United States and international operations. As discussed more fully in the Critical Accounting Policies section of the MD&A, we conduct our business on a global basis through our five branded agency networks, which operate in the following geographic regions: The Americas, which includes North America and Latin America; EMEA, which includes Europe, the Middle East and Africa; and, Asia Pacific, which includes Australia, China, India, Japan, Korea, New Zealand, Singapore and other Asian countries. The agency networks have regional reporting units that are responsible for the agencies in their region. Agencies within the regional reporting units serve similar clients in similar industries and in many cases the same clients and have similar economic characteristics. Accordingly, we aggregate and monitor our agencies on a regional basis. Given the strategic emphasis we place on the geographic regions in which we operate, we provide financial information by geographic region in the MD&A and Note 8 to the consolidated financial statements.

Our Clients

Our clients operate in virtually every industry sector of the global economy. In many cases, multiple agencies or networks serve different brand and/or product groups within the same clients. For example, in 2014, our largest client was served by more than 200 of our agencies and represented 2.6% of revenue and no other client accounted for more than 2.5% of revenue. In 2014, our top 100 clients, ranked by revenue, were each served, on average, by more than 50 of our agencies and collectively represented approximately 50% of revenue.

Our Employees

At December 31, 2014, we employed approximately 74,000 people. We are not party to any significant collective bargaining agreements. The skill sets of our workforce across our agencies and within each discipline are similar. Common to all is the ability to understand a client’s brand or product and their selling proposition and to develop a unique message to communicate the value of the brand or product to the client’s target audience. Recognizing the importance of this core competency, we have established tailored training and education programs for our client service professionals around this competency. See the MD&A for a discussion of the effect of salary and related costs on our results of operations.

Executive Officers of the Registrant

At January 30, 2015, our executive officers were:

Name	Position	Age
Bruce Crawford	Chairman of the Board	86
John D. Wren	President and Chief Executive Officer	62
Philip J. Angelastro	Executive Vice President and Chief Financial Officer	50
Michael J. O’Brien	Senior Vice President, General Counsel and Secretary	53
Dennis E. Hewitt	Treasurer	70
Andrew L. Castellaneta	Senior Vice President, Chief Accounting Officer	56
Peter L. Swieciciki	Senior Vice President, Finance and Controller	56
Jonathan B. Nelson	CEO, Omnicom Digital	47

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Each executive officer has held his present position for at least five years, except: Mr. Angelastro was named Executive Vice President and Chief Financial Officer in September 2014, prior to that, Mr. Angelastro served as Senior Vice President Finance and Controller since 2002; Mr. Castellaneta was named Senior Vice President, Chief Accounting Officer in January 2015, prior to that he served as Assistant Controller since 2000; and, Mr. Swieciciki was named Senior Vice President, Finance and Controller in January 2015, prior to that he served as Director of Business Operations since 2013 and held various positions with BBDO Worldwide for more than five years.

Additional information about our directors and executive officers will appear in our definitive proxy statement, which is expected to be filed with the SEC by April 8, 2015.

Item 1A. Risk Factors

Adverse global economic conditions could cause clients to reduce spending on advertising, marketing and corporate communications services and may have a material effect on our business, results of operations and financial position.

Adverse global economic conditions have a direct impact on our business, results of operations and financial position. In particular, a contraction in global economic conditions poses a risk that our clients may reduce future spending on advertising, marketing and corporate communications services which could reduce the demand for our services. If domestic or global economic conditions deteriorate, our business, results of operations and financial position could be adversely affected. We will continue to monitor economic conditions closely, client revenue levels and other factors, and may take actions available to us to align our cost structure and manage working capital in response to reductions in client revenue. There can be no assurance whether, or to what extent, our efforts to mitigate any impact of future adverse economic conditions, reductions in our client revenue, changes in client creditworthiness and other developments will be effective.

A reduction in client spending, a delay in client payments or conditions in the credit markets could have a material adverse effect on our working capital.

Global economic uncertainty, turmoil in the credit markets or a contraction in the availability of credit may make it more difficult for us to meet our working capital requirements and could have a material adverse effect on our business, results of operations and financial position. Such events could also lead clients to seek to change their financial relationship with us, and reduce spending on our services, delay the payment for our services or take additional actions that would negatively affect our working capital. In response, we could need to obtain additional financing to fund our day-to-day working capital requirements in such circumstances. Such additional financing may not be available on favorable terms, or at all.

In an economic downturn, the risk of a material loss related to media purchases and production costs incurred on behalf of our clients could significantly increase and methods for managing or mitigating such risk may be less available or unavailable.

In the normal course of our 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 business, results of operations and financial position.

In addition, methods of managing the risk of payment defaults, 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.

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Clients periodically review and change their advertising, marketing and corporate communications services requirements and relationships. If we are unable to remain competitive or retain key clients, our business, results of operations and financial position may be adversely affected.

The markets we operate in are highly competitive and are expected to remain so. Key competitive considerations for retaining existing clients and winning new clients include our ability to develop marketing solutions that meet client needs in a rapidly changing environment, the quality and effectiveness of the services we offer and our ability to serve clients efficiently, particularly large international clients, on a broad geographic basis. While many of our client relationships are long-standing, from time to time clients put their advertising, marketing and corporate communications services business up for competitive review. We have won and lost accounts in the past as a result of these reviews. To the extent that we are not able to remain competitive or retain key clients, our revenue may be adversely affected, which could have a material adverse effect on our business, results of operations and financial position.

The success of our acquiring and retaining clients depends on our ability to avoid and manage conflicts of interest arising from other client relationships, the retention of key personnel and maintaining a highly skilled workforce.

Our ability to retain existing clients and to attract new clients may, in some cases, be limited by clients’ perceptions of, or policies concerning, conflicts of interest arising from other client relationships. If we are unable to maintain multiple agencies to manage multiple client relationships and avoid potential conflicts of interests, our business, results of operations and financial position may be adversely affected.

Our employees are our most important assets and our ability to attract and retain key personnel is an important aspect of our competitiveness. If we are unable to attract and retain key personnel, including highly skilled technically proficient personnel, our ability to provide our services in the manner our clients have come to expect may be adversely affected, which could harm our reputation and result in a loss of clients, which could have a material adverse effect on our business, results of operations and financial position.

The loss of several of our largest clients could have a material adverse effect on our business, results of operations and financial position.

In 2014, approximately 50% of our revenue came from our 100 largest clients. Clients generally are able to reduce advertising and marketing spending or cancel projects at any time on short notice for any reason. It is possible that our clients could reduce spending in comparison to historical patterns, or they could reduce future spending. A significant reduction in advertising and marketing spending by our largest clients, or the loss of several of our largest clients, if not replaced by new clients or an increase in business from existing clients, would adversely affect our revenue and could have a material adverse effect on our business, results of operations and financial position.

We rely extensively on information technology systems and cyber incidents could adversely affect us.

We rely on information technology systems and infrastructure to process transactions, summarize results and manage our business, including maintaining client marketing and advertising information. Our information technology systems are potentially vulnerable to system failures and network disruptions, malicious intrusion and random attack. Likewise, data security incidents and breaches by employees and others with or without permitted access to our systems may pose a risk that sensitive data may be exposed to unauthorized persons or to the public. Additionally, we utilize third parties, including cloud providers, to store, transfer or process data. While we have taken what we believe are prudent measures to protect our data and information technology systems, there can be no assurance that our efforts will prevent system failures or network disruptions or breaches in our systems, or in systems of third parties we use, that could adversely affect our reputation or business.

Government regulation and consumer advocates may limit the scope and content of our services, which could affect our ability to meet our clients’ needs, which could have a material adverse effect on our business, results of operations and financial position.

Government agencies and consumer groups directly or indirectly affect or attempt to affect the scope, content and manner of presentation of advertising, marketing and corporate communications services, through regulation or other governmental action, which could affect our ability to meet our clients’ needs. Such regulation may seek, among other things, to limit the tax deductibility of advertising expenditures by certain industries or for certain products and services. In addition, there has been a tendency on the part of businesses to resort to the judicial system to challenge advertising practices, which could cause our clients affected by such actions to reduce their spending on our services. Any limitation or judicial action that effects our ability to meet our clients' needs or reduces client spending on our services could have a material adverse effect on our business, results of operations and financial position.

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Further, laws and regulations, related to user privacy, use of personal information and Internet tracking technologies have been proposed or enacted in the United States and certain international markets. These laws and regulations could affect the acceptance of new communications technologies and the use of current communications technologies as advertising mediums. These actions could affect our business and reduce demand for certain of our services, which could have a material adverse effect on our business, results of operations and financial position.

We are a global service business and face certain risks of doing business abroad, which could have a material adverse effect on our business, results of operations and financial position.

We face a number of risks associated with a global service business. The operational and financial performance of our businesses are typically tied to overall economic and regional market conditions, competition for client assignments and talented staff, new business and the risks associated with extensive international operations. We also must comply with applicable U.S. and international anti-corruption laws, including the Foreign Corrupt Practices Act of 1977, which can be complex and stringent, in all jurisdictions where we operate. These risks could have a material adverse effect on our results of operations and financial position. For financial information by geographic region, see Note 8 to the consolidated financial statements.

We are exposed to risks from operating in developing countries and high-growth markets.

We conduct business in numerous developing countries and high-growth markets around the world. Our operations outside the United States are exposed to risks that include: slower receipt of payments; social, political and economic instability, currency fluctuation and currency repatriation restrictions. In addition, commercial laws in developing countries and high-growth markets can be undeveloped, vague, inconsistently enforced or frequently changed. If we are deemed not to be in compliance with applicable laws in countries and markets where we conduct business, our prospects and business in those countries and markets could be harmed, which could then have a material adverse effect on our business, results of operations and financial position.

Downgrades of our debt credit ratings could adversely affect us.

Standard and Poor’s Rating Service, or S&P, rates our long-term debt BBB+ and Moody’s Investors Service, or Moody's, rates our long-term debt Baa1. Our short-term debt ratings are A2 and P2 by the respective rating agencies. Our access to the capital markets could be adversely affected by downgrades in our short-term or long-term debt credit ratings.

We may be unsuccessful in evaluating material risks involved in completed and future acquisitions.

We regularly evaluate potential acquisitions of businesses that we believe are complementary to our businesses and client needs. As part of the evaluation, we conduct business, legal and financial due diligence with the goal of identifying and evaluating material risks involved in any particular transaction. Despite our efforts, we may be unsuccessful in ascertaining or evaluating all such risks. As a result, we might not realize the intended advantages of any given acquisition. If we fail to identify certain material risks from one or more acquisitions, our business, results of operations and financial position could be adversely affected.

Our goodwill may become impaired, which could have a material adverse effect on our business, results of operations and financial position.

In accordance with generally accepted accounting principles in the United States, or U.S. GAAP or GAAP, we have recorded a significant amount of goodwill in our consolidated financial statements resulting from our acquisition activities, which principally represents the specialized know-how of the workforce at the acquired businesses. As discussed in Note 2 to the consolidated financial statements, we review the carrying value of goodwill for impairment annually at the end of the second quarter of the year and whenever events or circumstances indicate the carrying value may not be recoverable. The estimates and assumptions about future results of operations and cash flows made in connection with the impairment testing could differ from future actual results of operations and cash flows. While we have concluded, for each year presented in the financial statements included in this report, that our goodwill is not impaired, future events could cause us to conclude that the asset values associated with a given operation may become impaired. Any resulting non-cash impairment charge could have a material adverse effect on our business, results of operations and financial position.

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We could be affected by future laws or regulations enacted in response to climate change concerns and other actions.

Generally, our businesses are not directly affected by current cap and trade laws and other regulatory requirements aimed at mitigating the impact of climate change by reducing emissions or otherwise; although, our businesses could be in the future. However, we could be indirectly affected by increased prices for goods or services provided to us by companies that are directly affected by these laws and regulations and pass their increased costs through to their customers. Further, if our clients are impacted by such laws or requirements, either directly or indirectly, their spending for advertising and marketing services may decline, which could adversely impact our business, results of operations and financial position. Additionally, to comply with potential future changes in environmental laws and regulations, we may need to incur additional costs. At this time, we cannot estimate what impact such costs may have on our business, results of operations and financial position.

Item 1B. Unresolved Staff Comments

None.

Item 2. Properties

We have offices throughout the world. The facility requirements of our businesses are similar across geographic regions and disciplines. Our facilities are primarily used by our employees to provide advertising and marketing services to our clients. We believe that our facilities are in suitable and well-maintained condition for our current operations. Our principal corporate offices are located at 437 Madison Avenue, New York, New York; One East Weaver Street, Greenwich, Connecticut and 525 Okeechobee Boulevard, West Palm Beach, Florida. We also maintain executive offices in London, England; Shanghai, China and Singapore.

We lease substantially all our office space under operating leases that expire at various dates. Lease obligations of our foreign operations are generally denominated in their local currency. Office base rent expense was $361.9 million, $369.3 million and $380.1 million in 2014, 2013 and 2012, respectively, net of rent received from non-cancelable third-party subleases of $11.2 million, $10.6 million and $10.4 million, respectively.

Future minimum office base rent under non-cancelable operating leases, net of rent receivable from existing non-cancelable third-party subleases, is (in millions):

	Net Rent
2015	$	316.8
2016	229.2
2017	186.6
2018	151.6
2019	133.5
Thereafter	529.0
	$	1,546.7

See Note 15 to the consolidated financial statements for a description of our lease commitments and the MD&A for a description of the impact of leases on our operating expenses.

Item 3. Legal Proceedings

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

Item 4. Mine Safety Disclosures

Not Applicable.

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PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Our common stock is listed and traded on the New York Stock Exchange, or NYSE, under the symbol “OMC.” As of January 30, 2015, there were 2,255 registered holders of our common stock.

The quarterly high and low sales prices for our common stock reported by the NYSE and dividends paid per share for 2014 and 2013 were:

	High		Low		Dividends Paid Per Share
2014
First Quarter	$	76.87	$	70.59	$	0.40
Second Quarter	72.84		65.43		0.50
Third Quarter	74.14		68.32		0.50
Fourth Quarter	78.49		64.03		0.50
2013
First Quarter	$	60.05	$	50.40	$	0.40
Second Quarter	64.29		57.73		0.40
Third Quarter	70.50		59.70		0.40
Fourth Quarter	74.50		61.35		0.40

Stock repurchase activity during the three months ended December 31, 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
October 2014	517,207	$	68.97	—	—
November 2014	6,710	68.17		—	—
December 2014	2,105,006	77.05		—	—
	2,628,923	$	75.44	—	—

During the three months ended December 31, 2014, we purchased 2,551,145 shares of our common stock in the open market for general corporate purposes and withheld 77,778 shares from employees to satisfy estimated statutory income tax obligations related to stock option exercises and restricted stock vesting. 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 equity securities during the three months ended December 31, 2014.

For information on securities authorized for issuance under our equity compensation plans, see “Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters,” which relevant information will be included under the caption “Equity Compensation Plans” in our definitive proxy statement, which is expected to be filed with the SEC by April 8, 2015.

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Item 6. Selected Financial Data

The following selected financial data should be read in conjunction with our consolidated financial statements and related notes that begin on page F-1 of this report, as well as the MD&A.

	(In millions, except per share amounts)
For the years ended December 31:	2014		2013		2012		2011		2010
Revenue	$	15,317.8	$	14,584.5	$	14,219.4	$	13,872.5	$	12,542.5
Operating Income	1,944.1		1,825.3		1,804.2		1,671.1		1,460.2
Net Income - Omnicom Group Inc.	1,104.0		991.1		998.3		952.6		827.7
Net Income Per Common Share - Omnicom Group Inc.:
Basic	4.27		3.73		3.64		3.38		2.74
Diluted	4.24		3.71		3.61		3.33		2.70
Dividends Declared Per Common Share	1.90		1.60		1.20		1.00		0.80
	(In millions)
At December 31:	2014		2013		2012		2011		2010
Cash and cash equivalents and short-term investments	$	2,390.3	$	2,728.7	$	2,698.9	$	1,805.0	$	2,300.0
Total Assets	21,559.7		22,098.7		22,151.9		20,505.4		19,566.1
Long-Term Obligations:
Long-term notes payable	4,562.6		3,780.7		3,789.1		2,523.5		2,465.1
Convertible debt	—		252.7		659.4		659.4		659.5
Long-term liabilities	774.3		685.1		739.9		602.0		576.5
Total Shareholders’ Equity	2,850.0		3,582.4		3,460.8		3,504.3		3,580.5

In 2014 and 2013, we incurred expenses in connection with the proposed merger with Publicis Groupe S.A., or Publicis, of $8.8 million and $41.4 million, respectively, which are primarily comprised of professional fees. On May 8, 2014, the proposed merger was terminated. Excluding the effect of the merger expenses from both years, Operating Income, Net Income - Omnicom Group Inc. and Diluted Net Income per Common Share - Omnicom Group Inc. for the years ended December 31, 2014 and 2013 were $1,952.9 million, $1,101.4 million, and $4.23 and $1,866.7 million, $1,026.0 million and $3.84, respectively.

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

EXECUTIVE SUMMARY

We are a strategic holding company providing advertising, marketing and corporate communications 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, 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.

On May 8, 2014, the Company and 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.

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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. In 2014, our largest client accounted for 2.6% of our revenue and no other client accounted for more than 2.5% of our revenue. Our top 100 clients accounted for approximately 50% of our revenue in 2014. Our business is spread across a significant number of industry sectors with no one industry comprising more than 13% of our revenue in 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.

For the year ended December 31, 2014, as described in more detail below, our revenue increased5.0% compared to 2013. Revenue increased in the United States 7.7%. In Europe, revenue increased modestly for the year, which reflects the strengthening of the British Pound against the U.S. Dollar and a flat U.S. Dollar relative to the Euro on a year-over-year basis, despite the weakening of the British Pound and a significant weakening of the Euro against the U.S. Dollar in the fourth quarter of 2014. For the year, the Russian Rouble decreased significantly against the U.S. Dollar. Revenue increased moderately in most of our other markets, but the rate of growth was significantly impacted by the weakening of most currencies, in the fourth quarter, against the U.S. Dollar.

In the fourth quarter of 2014, substantially all foreign currencies weakened against the U.S. Dollar. As a result, changes in foreign exchange rates reduced revenue in the fourth quarter by 3.1%, or $129.4 million. Our results of operations are subject to risk from the translation to U.S. Dollars of the revenue and expenses of our foreign operations, which are generally denominated in their local currency. For the most part, revenue and expenses of our foreign operations are denominated in the same currency, which minimizes the economic impact of changes in foreign exchange rates on our results of operations. Assuming exchange rates at January 30, 2015 remain unchanged, we expect the impact of changes in foreign exchange rates to reduce 2015 revenue by approximately 5%.

Global economic conditions have a direct impact on our business and financial performance. In particular, a contraction in global economic conditions poses a risk that our clients may reduce future spending on advertising, marketing and corporate communications services which could reduce the demand for our services. In 2014, the United States experienced modest economic growth and the major economies of Asia and Latin America continued to expand. Economic conditions in the Euro Zone in 2014 were unsettled and the fiscal issues facing many countries in the European Union continue to cause economic uncertainty in many of our Euro Zone markets. We will continue to monitor economic conditions closely, 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 adverse 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 expenditures, 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.

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 2015 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.

In 2014, our revenue increased5.0% compared to 2013. Changes in foreign exchange rates reduced revenue by 0.8%, acquisitions, net of dispositions increased revenue 0.1% and organic growth increased revenue 5.7%. Across our principal regional markets, revenue increased6.5% in North America, 7.2% in the Middle East and Africa, 4.1% in Europe and 0.9% in Asia and Latin America. The increase in revenue in Europe was the result of growth in the U.K., Spain and Germany, partially

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offset by reductions in several countries in the Euro Zone, and the strengthening of the British Pound against the U.S. Dollar. Revenue in Asia Pacific increased1.4% compared to 2013, but the rate of growth was negatively impacted by the weakening of most currencies in that region against the U.S. Dollar. The weakening of the currencies in Latin America against the U.S. Dollar offset revenue growth in that region and revenue decreased1.1%. The increase in revenue in 2014 compared to 2013 in our four fundamental disciplines was: advertising 8.1%, CRM 1.7%, public relations 5.0% and specialty communications 1.1%.

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.

As a service business, we monitor salary and service costs and office and general costs in relation to revenue. Salary and service costs, which tend to fluctuate in conjunction with changes in revenue, increased$625.6 million, or 5.8%, in 2014 compared to 2013. Office and general expenses, which are are less directly linked to changes in revenue than salary and service costs, decreased$11.1 million, or 0.5%, in 2014 compared to 2013.

In 2014 and 2013, we incurred $8.8 million and $41.4 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 was terminated. Excluding the merger expenses from both years, office and general expenses for 2014increased$21.5 million compared to 2013, but decreased as a percentage of revenue reflecting our continuing efforts to control the cost structures of our agencies.

In 2014, operating margins increased to 12.7% from 12.5% in 2013. Excluding the merger expenses from both years, operating income and operating margin for 2014 and 2013 were $1,952.9 million and 12.7% and $1,866.7 million and 12.8%, respectively.

Net interest expense decreased$30.3 millionto$134.1 millionin2014from$164.4 millionin2013. In October 2014, we issued $750 million of 3.65% Senior Notes due 2024, or 2024 Notes. On September 29, 2014, we entered into an interest rate swap on the 4.45 % Senior Notes due 2020, or 2020 Notes. In 2014, the benefit from the interest rate swap on the 2020 Notes substantially offset the interest expense on the 2024 Notes. Interest expense for 2014decreased$20.0 millionto$177.2 million, primarily resulting from the benefit from the interest rate swap on the 3.625% Senior Notes due 2022, or 2022 Notes, entered into on May 1, 2014. The interest rate swaps have the economic effect of converting the 2022 Notes and the 2020 Notes from fixed rate debt to floating rate debt. Interest income increased$10.3 million to $43.1 million in 2014 resulting from our cash management efforts and interest earned on cash balances in our international treasury centers.

In 2014, our effective tax rate decreased to 32.8% from 34.0% in 2013. Income taxes for 2014 and 2013 reflect the recognition of an income tax benefit of $11.4 million and $6.5 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 from both years, our effective tax rate for 2014 and 2013 was 33.2% and 33.6%, respectively.

Net income - Omnicom Group Inc. for 2014increased$112.9 million, or 11.4%, to $1,104.0 million from $991.1 million in 2013. The year-over-year increase is due to the factors described above. Diluted net income per common share - Omnicom Group Inc. increased14.3% to $4.24 in 2014, compared to $3.71 in 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 shares outstanding was the result of repurchases of our common stock, net of shares issued for the conversion of the Convertible Notes due 2032, or 2032 Notes, stock option exercises and shares issued under our employee stock purchase plan. In the second quarter of 2014, following the termination of the proposed merger with Publicis, we resumed repurchases of our common stock. Excluding the net effect of the merger expenses, net income - Omnicom Group Inc. for 2014 and 2013 was $1,101.4 million and $1,026.0 million, respectively, and diluted net income per common share - Omnicom Group Inc. was $4.23 and $3.84, respectively.

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CRITICAL ACCOUNTING POLICIES

The following summary of our critical accounting policies provides a better understanding of our financial statements and the related discussion in this MD&A. We believe that the following policies may involve a higher degree of judgment and complexity in their application than most of our accounting policies and represent the critical accounting policies used in the preparation of our financial statements. Readers are encouraged to consider this summary together with our financial statements and the related notes, including Note 2, Significant Accounting Policies, for a more complete understanding of the critical accounting policies discussed below.

Estimates

Our financial statements are prepared in conformity with U.S. GAAP and require us to make estimates and assumptions that affect the amounts of assets, liabilities, revenue and expenses that are reported in the consolidated financial statements and accompanying notes. We use a fair value approach in testing goodwill for impairment and when evaluating our cost-method investments to determine if an other-than-temporary impairment has occurred. Actual results could differ from those estimates and assumptions.

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 services offered of the target businesses, as well as our experience and judgment.

Business combinations are accounted for using the acquisition method and, accordingly, the assets acquired, including identified intangible assets, the liabilities assumed and any noncontrolling interest in the acquired business are recorded at their acquisition date fair values. In circumstances where control is obtained and less than 100% of an entity is acquired, we record 100% of the goodwill acquired. Acquisition-related costs, including advisory, legal, accounting, valuation and other costs, are expensed as incurred. Certain of our acquisitions are structured with contingent purchase price obligations (earn-outs). Contingent purchase price obligations are recorded as a liability at the acquisition date fair value. Subsequent changes in the fair value of the liability are recorded in our results of operations. The results of operations of acquired businesses are included in our results of operations from the acquisition date. In 2014, we completed 10 acquisitions of new subsidiaries and made additional investments in businesses in which we had an existing minority ownership interest.

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 for most service businesses, a substantial portion of the intangible asset value we acquire is the know-how of the workforce, 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 review the carrying value of goodwill for impairment 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 monitor the performance and 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 Accounting Standards Codification, or 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. 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.

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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 for the long-term growth rate and WACC used 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%

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 was5.6%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 the annual test as of June 30, 2014, we used an estimated long-term growth rate of 4% for our reporting units.

When performing the 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. Economic conditions in the Euro Zone in 2014 were unsettled and the fiscal issues facing many countries in the European Union continue to cause economic uncertainty in many of our Euro Zone markets. We considered the effect of these conditions in the 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.

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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 the 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 the 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 the 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 the 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.

Subsequent to the annual impairment test at June 30, 2014, there were no events or circumstances that triggered the need for an interim impairment test. Additional information about acquisitions and goodwill appears in Notes 2, 4 and 5 to the consolidated financial statements.

Revenue Recognition

We recognize revenue in accordance with FASB ASC Topic 605, Revenue Recognition, and applicable SEC Staff Accounting Bulletins. Substantially all of our revenue is derived from fees for services based on a rate per hour or equivalent basis. Revenue is realized when the service is performed in accordance with the client arrangement and upon the completion of the earnings process. Prior to recognizing revenue, persuasive evidence of an arrangement must exist, the sales price must be fixed or determinable, delivery, performance and acceptance must be in accordance with the client arrangement and collection must be reasonably assured. These principles are the foundation of our revenue recognition policy and apply to all client arrangements in each of our service disciplines: advertising, CRM, public relations and specialty communications. Certain of our businesses earn a portion of their revenue as commissions based upon performance in accordance with client arrangements. Because the services that we provide across each of our disciplines are similar and delivered to clients in similar ways, all of the key elements in revenue recognition apply to client arrangements in each of our four disciplines.

In the majority of our businesses, we act as an agent and record revenue equal to the net amount retained when the fee or commission is earned. Although we may bear credit risk with respect to these activities, the arrangements with our clients are such that we act as an agent on their behalf. In these cases, costs incurred with third-party suppliers are excluded from our revenue. In certain arrangements, we act as principal and we contract directly with third-party suppliers and media providers and production companies and we are responsible for payment. In these circumstances, revenue is recorded at the gross amount billed since revenue has been earned for the sale of goods or services.

Some of our client arrangements include performance incentive provisions designed to link a portion of our revenue to our performance relative to quantitative and qualitative goals. We recognize performance incentives in revenue when the specific quantitative goals are achieved, or when our performance against qualitative goals is determined by the client.

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In May 2014, the FASB issued FASB Accounting Standards Update 2014-09, Revenue from Contracts with Customers, orASU 2014-09, which replaces all existing revenue recognition guidance under U.S. GAAP. 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.

Additional information about our revenue recognition policy appears in Note 2 to the consolidated financial statements.

Share-Based Compensation

Share-based compensation is measured at the grant date fair value based on the fair value of the award. We use the Black-Scholes option valuation model to determine the fair value of stock option awards. This valuation model uses several assumptions and estimates such as expected life, rate of risk free interest, volatility and dividend yield. If different assumptions and estimates were used to determine the fair value, our actual results of operations and cash flows would likely differ from the estimates used and it is possible that differences could be material. The fair value of restricted stock awards is determined and fixed on the grant date using the closing price of our common stock. Additional information about these assumptions and estimates appears in Note 2 to the consolidated financial statements.

Share-based compensation expense of $93.5 million, $86.3 million and $80.8 million, in 2014, 2013 and 2012, respectively, was primarily attributed to restricted stock awards. Information about our specific awards and stock plans can be found in Note 10 to the consolidated financial statements.

NEW ACCOUNTING STANDARDS

Additional information regarding new accounting guidance can be found in Note 20 to the consolidated financial statements. Note 2 to the consolidated financial statements provides a summary of our significant accounting policies.

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

	2014			2013
Revenue	$	15,317.8		$	14,584.5
Operating Expenses:
Salary and service costs	11,350.0			10,724.4
Office and general expenses	2,023.7			2,034.8
Total Operating Expenses	13,373.7			12,759.2
Add back: Amortization of intangible assets	107.1			100.8
	13,266.6			12,658.4
Earnings before interest, taxes and amortization of intangible assets (“EBITA”)	2,051.2			1,926.1
EBITA Margin - %	13.4		%	13.2		%
Deduct: Amortization of intangible assets	107.1			100.8
Operating Income	1,944.1			1,825.3
Operating Margin - %	12.7		%	12.5		%
Interest Expense	177.2			197.2
Interest Income	43.1			32.8
Income Before Income Taxes and Income From Equity Method Investments	1,810.0			1,660.9
Income Tax Expense	593.1			565.2
Income From Equity Method Investments	16.2			15.9
Net Income	1,233.1			1,111.6
Net Income Attributed To Noncontrolling Interests	129.1			120.5
Net Income - Omnicom Group Inc.	$	1,104.0		$	991.1

In 2014 and 2013, we incurred $8.8 million and $41.4 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 was terminated. Excluding the merger expenses, operating income and operating margin for 2014 and 2013 were $1,952.9 million and 12.7% and $1,866.7 million and 12.8%, respectively, and EBITA and EBITA margin for 2014 and 2013 were $2,060.0 million and 13.4% and $1,967.5 million and 13.5%, respectively. Excluding the income tax effect of the merger expenses of $11.4 million in 2014 and $6.5 million in 2013, income tax expense was $604.5 million in 2014 and $571.7 million in 2013. Excluding the after-tax effect of the merger expenses, net income - Omnicom Group Inc. was $1,101.4 million in 2014 and $1,026.0 million in 2013.

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 2014, revenue increased$733.3 million, or 5.0%, to $15,317.8 million from $14,584.5 million in 2013. Changes in foreign exchange rates reduced revenue $112.6 million, acquisitions net of dispositions increased revenue $19.0 million and organic growth increased revenue $826.9 million.

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

	Total					Domestic					International
	$			%		$			%		$			%
December 31, 2013	$	14,584.5				$	7,569.7				$	7,014.8
Components of revenue change:
Foreign exchange impact	(112.6		)	(0.8	)%	—			—	%	(112.6		)	(1.6	)%
Acquisitions, net of dispositions	19.0			0.1	%	(48.4		)	(0.6	)%	67.4			0.9	%
Organic growth	826.9			5.7	%	631.4			8.3	%	195.5			2.8	%
December 31, 2014	$	15,317.8		5.0	%	$	8,152.7		7.7	%	$	7,165.1		2.1	%

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 $15,430.4 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 ($15,317.8 million less $15,430.4 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 prior 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 ($14,584.5 million for the Total column).

For the year ended December 31, 2014, changes in foreign exchange rates reduced revenue by 0.8%, or $112.6 million, compared to 2013. The most significant impacts resulted from the weakening of several currencies, including the Australian Dollar, Brazilian Real, Canadian Dollar, Japanese Yen, Russian Rouble and South African Rand, against the U.S. Dollar. This was partially offset by the strengthening of the British Pound against the U.S. Dollar.

In the fourth quarter of 2014, substantially all foreign currencies weakened against the U.S. Dollar. As a result, changes in foreign exchange rates reduced revenue in the fourth quarter of 2014 by 3.1%, or $129.4 million. Our results of operations are subject to risk from the translation to U.S. Dollars of the revenue and expenses of our foreign operations, which are generally denominated in their local currency. However, for the most part, revenue and expenses of our foreign operations are denominated in the same currency, which minimizes the economic impact of changes in foreign exchange rates on our results of operations. Assuming exchange rates at January 30, 2015 remain unchanged, we expect the impact of changes in foreign exchange rates to reduce 2015 revenue by approximately 5%.

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

	$		% Change		% Organic Growth
Americas:
North America	$	8,688.7	6.5	%	7.5	%
Latin America	432.6		(1.1	)%	4.0	%
EMEA:
Europe	4,337.9		4.1	%	2.4	%
Middle East and Africa	256.1		7.2	%	10.1	%
Asia Pacific	1,602.5		1.4	%	4.5	%
	$	15,317.8	5.0	%	5.7	%

16

Europe comprises the United Kingdom and various Euro currency countries and other European countries that have not adopted the European Union Monetary standard. In 2014, the percentage of revenue attributed to the U.K. was 9.8% and the percentage of revenue attributed the Euro currency and other European countries was 18.5%. In 2014, total revenue growth for the U.K. was 12.5% and total revenue growth for the Euro currency and other European countries was 0.1%.

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 in 2014 was an overall gain in new business. Under our client-centric approach, we seek to broaden our relationships with all of our clients. Our largest client represented 2.6% and 2.7% of revenue in 2014 and 2013, respectively. No other client represented more than 2.5% of revenue in 2014 and 2013, respectively. Our ten largest and 100 largest clients represented 18.1% and 50.4% of revenue in 2014, respectively and 19.1% and 51.3% of revenue in 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, content marketing, 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, graphic arts/digital imaging, healthcare communications, instore design, interactive marketing, investor relations, marketing research, media planning and buying, mobile marketing, multi-cultural marketing, non-profit marketing, organizational communications, package design, product placement, promotional 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.

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

	Year Ended December 31,
	2014				2013				2014 vs. 2013
	$		% of Revenue		$		% of Revenue		$ Change		% Change		% Organic Growth
Advertising	$	7,593.5	49.6	%	$	7,026.1	48.2	%	$	567.4	8.1	%	9.1	%
CRM	5,254.4		34.3	%	5,166.6		35.4	%	87.8		1.7	%	1.9	%
Public relations	1,393.7		9.1	%	1,327.4		9.1	%	66.3		5.0	%	4.1	%
Specialty communications	1,076.2		7.0	%	1,064.4		7.3	%	11.8		1.1	%	3.1	%
	$	15,317.8			$	14,584.5			$	733.3	5.0	%	5.7	%

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

	2014		2013
Food and Beverage	13	%	14	%
Consumer Products	10	%	10	%
Pharmaceuticals and Health Care	10	%	10	%
Financial Services	7	%	7	%
Technology	9	%	9	%
Auto	8	%	8	%
Travel and Entertainment	6	%	5	%
Telecommunications	5	%	7	%
Retail	6	%	6	%
Other	26	%	24	%

17

Operating Expenses

Operating expenses for 2014 compared to 2013 were (in millions):

	Year Ended December 31,
	2014						2013						2014 vs. 2013
	$		% of Revenue		% of Total Operating Expenses		$		% of Revenue		% of Total Operating Expenses		$ Change			% Change
Revenue	$	15,317.8					$	14,584.5					$	733.3		5.0	%
Operating Expenses:
Salary and service costs	11,350.0		74.1	%	84.9	%	10,724.4		73.5	%	84.1	%	625.6			5.8	%
Office and general expenses	2,023.7		13.2	%	15.1	%	2,034.8		14.0	%	15.9	%	(11.1		)	(0.5	)%
Operating Expenses	13,373.7		87.3	%			12,759.2		87.5	%			614.5			4.8	%
Operating Income	$	1,944.1	12.7	%			$	1,825.3	12.5	%			$	118.8		6.5	%

Salary and service costs tend to fluctuate in conjunction with changes in revenue. Salary and service costs increased$625.6 million in 2014 compared to 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 decreased$11.1 million in 2014 compared to 2013.

In 2014 and 2013, we incurred $8.8 million and $41.4 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 was terminated. Excluding the merger expenses, office and general expenses for 2014increased$21.5 million compared to 2013, but decreased as a percentage of revenue reflecting our continuing efforts to control the cost structures of our agencies.

Operating margins in 2014increased to 12.7% from 12.5% in 2013 and EBITA margins in 2014increased to 13.4% from 13.2% in 2013. Excluding the merger expenses from both years, operating income and operating margin for 2014 and 2013 were $1,952.9 million and 12.7% and $1,866.7 million and 12.8%, respectively, and EBITA and EBITA margin for 2014 and 2013 were $2,060.0 million and 13.4% and $1,967.5 million and 13.5%, respectively.

Net Interest Expense

Net interest expense decreased$30.3 millionto$134.1 millionin2014from$164.4 millionin2013. In October 2014, we issued $750 million principal amount of our 2024 Notes. On September 29, 2014, we entered into an interest rate swap on the 2020 Notes. In 2014, the benefit from the interest rate swap on the 2020 Notes substantially offset the interest expense on the 2024 Notes. Interest expense for 2014decreased$20.0 millionto$177.2 million, primarily resulting from the benefit from the interest rate swap on the 2022 Notes, entered into on May 1, 2014. The interest rate swaps have the economic effect of converting the 2022 Notes and the 2020 Notes from fixed rate debt to floating rate debt. Interest income increased$10.3 million to $43.1 million in 2014 resulting from our cash management efforts and interest earned on cash balances in our international treasury centers.

Income Taxes

Our effective tax rate decreased to 32.8% in 2014 from 34.0% in 2013. Income taxes for 2014 and 2013 reflect the recognition of an income tax benefit of $11.4 million and $6.5 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 from both years, our effective tax rate for 2014 and 2013 was 33.2% and 33.6%, respectively.

18

Net Income Per Common Share - Omnicom Group Inc.

Net income - Omnicom Group Inc. increased$112.9 million, or 11.4%, to $1,104.0 million in 2014 from $991.1 million in 2013. The year-over-year increase in net income - Omnicom Group Inc. is due to the factors described above. Diluted net income per common share - Omnicom Group Inc. increased14.3% to $4.24 in 2014, compared to $3.71 in 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 shares outstanding was the result of repurchases of our common stock, net of shares issued for the conversion of the Convertible Notes due 2032, or 2032 notes, stock option exercises and shares issued under our employee stock purchase plan. In the second quarter of 2014, following the termination of the proposed merger with Publicis, we resumed repurchases of our common stock. Excluding the after-tax effect of the merger expenses from both years, net income - Omnicom Group Inc. for 2014 and 2013 was $1,101.4 million and $1,026.0 million, respectively, and diluted net income per common share - Omnicom Group Inc. was $4.23 and $3.84, respectively.

RESULTS OF OPERATIONS - 2013 Compared to 2012 (in millions):

	2013			2012
Revenue	$	14,584.5		$	14,219.4
Operating Expenses:
Salary and service costs	10,724.4			10,406.8
Office and general expenses	2,034.8			2,008.4
Total Operating Expenses	12,759.2			12,415.2
Add back: Amortization of intangible assets	100.8			101.1
	12,658.4			12,314.1
Earnings before interest, taxes and amortization of intangible assets (“EBITA”)	1,926.1			1,905.3
EBITA Margin - %	13.2		%	13.4		%
Deduct: Amortization of intangible assets	100.8			101.1
Operating Income	1,825.3			1,804.2
Operating Margin - %	12.5		%	12.7		%
Interest Expense	197.2			179.7
Interest Income	32.8			35.1
Income Before Income Taxes and Income (Loss) From Equity Method Investments.	1,660.9			1,659.6
Income Tax Expense	565.2			527.1
Income (Loss) From Equity Method Investments	15.9			(15.0		)
Net Income	1,111.6			1,117.5
Net Income Attributed To Noncontrolling Interests	120.5			119.2
Net Income - Omnicom Group Inc.	$	991.1		$	998.3

In 2013, we incurred $41.4 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 was terminated. Excluding the merger expenses, operating income and operating margin for 2013 were $1,866.7 million and 12.8%, respectively, and EBITA and EBITA margin for 2013 were $1,967.5 million and 13.5%, respectively. Excluding the income tax effect of the merger expenses of $6.5 million, income tax expense in 2013 was $571.7 million. Excluding the after-tax effect of the merger expenses, net income - Omnicom Group Inc. in 2013 was $1,026.0 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.

19

Revenue

In 2013, revenue increased$365.1 million, 2.6%, to $14,584.5 million from $14,219.4 million in 2012. Changes in foreign exchange rates reduced revenue by $84.3 million, acquisitions, net of dispositions, reduced revenue by $51.7 million and organic growth increased revenue by $501.1 million.

The components of 2013 revenue change in the United States (“Domestic”) and the remainder of the world (“International”) were (in millions):

	Total					Domestic					International
	$			%		$			%		$			%
December 31, 2012	$	14,219.4				$	7,363.7				$	6,855.7
Components of revenue change:
Foreign exchange impact	(84.3		)	(0.6	)%	—			—	%	(84.3		)	(1.2	)%
Acquisitions, net of dispositions	(51.7		)	(0.3	)%	(63.8		)	(0.9	)%	12.1			0.1	%
Organic growth	501.1			3.5	%	269.8			3.7	%	231.3			3.4	%
December 31, 2013	$	14,584.5		2.6	%	$	7,569.7		2.8	%	$	7,014.8		2.3	%

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 $14,668.8 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 ($14,584.5 million less $14,668.8 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 prior 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 ($14,219.4 million for the Total column).

In 2013, changes in foreign exchange rates reduced revenue by 0.6%, or $84.3 million, compared to 2012. The most significant impacts resulted from the weakening of several currencies, including the Australian Dollar, Brazilian Real, British Pound, Canadian Dollar, Japanese Yen and South African Rand, against the U.S. Dollar. This was partially offset by the strengthening of the Euro against the U.S. Dollar.

Revenue for 2013 and the percentage change in revenue and organic growth from 2012 in our principal regional markets were (in millions):

	$		% Change		% Organic Growth
Americas:
North America	$	8,159.7	2.7	%	3.7	%
Latin America	437.4		1.4	%	9.2	%
EMEA:
Europe	4,168.5		3.0	%	1.4	%
Middle East and Africa	238.9		(0.2	)%	5.3	%
Asia Pacific	1,580.0		1.4	%	6.1	%
	$	14,584.5	2.6	%	3.5	%

20

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 in 2013 was an overall gain in new business. Under our client-centric approach, we seek to broaden our relationships with all of our clients. Or largest client represented 2.7% and 2.6% of our revenue in 2013 and 2012, respectively. No other client represented more than 2.5% and 2.6% of our revenue in 2013 and 2012, respectively. Our ten largest and 100 largest clients represented 19.1% and 51.3% of revenue in 2013, respectively, and 19.0% and 51.7% of revenue in 2012, respectively.

Revenue for 2013 and 2012 and the percentage change in revenue and organic growth from 2012 by discipline were (in millions):

	Year Ended December 31,
	2013				2012				2013 vs. 2012
	$		% of Revenue		$		% of Revenue		$ Change		% Change		% Organic Growth
Advertising	$	7,026.1	48.2	%	$	6,769.7	47.6	%	$	256.4	3.8	%	4.8	%
CRM	5,166.6		35.4	%	5,116.1		36.0	%	50.5		1.0	%	2.1	%
Public relations	1,327.4		9.1	%	1,290.3		9.1	%	37.1		2.9	%	1.5	%
Specialty communications	1,064.4		7.3	%	1,043.3		7.3	%	21.1		2.0	%	4.6	%
	$	14,584.5			$	14,219.4			$	365.1	2.6	%	3.5	%

We operate in a number of industry sectors. The percentage of revenue by industry sector for 2013 and 2012 was:

	2013		2012
Food and Beverage	14	%	14	%
Consumer Products	10	%	9	%
Pharmaceuticals and Health Care	10	%	10	%
Financial Services	7	%	8	%
Technology	9	%	9	%
Auto	8	%	9	%
Travel and Entertainment	5	%	5	%
Telecommunications	7	%	6	%
Retail	6	%	6	%
Other	24	%	24	%

Operating Expenses

Operating expenses for 2013 compared to 2012 were (in millions):

	Year Ended December 31,
	2013						2012						2013 vs. 2012
	$		% of Revenue		% of Total Operating Expenses		$		% of Revenue		% of Total Operating Expenses		$ Change		% Change
Revenue	$	14,584.5					$	14,219.4					$	365.1	2.6	%
Operating Expenses:
Salary and service costs	10,724.4		73.5	%	84.1	%	10,406.8		73.2	%	83.8	%	317.6		3.1	%
Office and general expenses	2,034.8		14.0	%	15.9	%	2,008.4		14.1	%	16.2	%	26.4		1.3	%
Operating Expenses	12,759.2		87.5	%			12,415.2		87.3	%			344.0		2.8	%
Operating Income	$	1,825.3	12.5	%			$	1,804.2	12.7	%			$	21.1	1.2	%

21

Salary and services costs tend to fluctuate in conjunction with changes in revenue. Salary and service costs increased$317.6 million in 2013 compared to 2012 reflecting growth in revenue and an increase in employee compensation, including incentive compensation and severance, as well as increases related to changes in the mix of our business during the year.

Office and general expenses are less directly linked to changes in our revenue than salary and service costs. Office and general expenses increased$26.4 million in 2013 compared to 2012.

In 2013, we incurred $41.4 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 was terminated. Excluding the merger expenses, office and general expenses for 2013decreased$15.0 million compared to 2012 reflecting our continuing efforts to control the cost structures of our agencies.

Operating margins in 2013decreased to 12.5% from 12.7% in 2012 and EBITA margins in 2013decreased to 13.2% from 13.4% in 2012. Excluding the merger expenses, operating income and operating margins for 2013 and 2012 were $1,866.7 million and 12.8% and $1,804.2 million and 12.7%, respectively, and EBITA and EBITA margins for 2013 and 2012 were $1,967.5 million and 13.5% and $1,905.3 million and 13.4%, respectively.

Net Interest Expense

Net interest expense increased to $164.4 million in 2013 from $144.6 million in 2012. Interest expense increased$17.5 million to $197.2 million. The increase in interest expense is primarily attributable to the issuance of $750 million of our 2022 Notes in April 2012 and $500 million of our 2022 Notes in August 2012. Interest income decreased$2.3 million to $32.8 million in 2013.

Income Taxes

Our effective tax rate increased to 34.0% in 2013 from 31.8% in 2012. Excluding the income tax effect of the merger expenses of $6.5 million, which reflects the estimated impact of the non-deductibility of a significant portion of the merger expenses, our effective tax rate for 2013 was 33.6%, which is consistent with our expected effective tax rate for 2013 and reflects the full year effect of the reduction in income tax expense resulting from the implementation of the legal reorganization in the Asia Pacific region, which occurred in the fourth quarter of 2012.

Income (Loss) From Equity Method Investments

Income from equity method investments in 2013 was $15.9 million compared to a loss of $15.0 million in the prior year. 2012 reflects a net impairment charge of $29.2 million for an other-than-temporary decline in the carrying value of our equity investment in Egypt.

Net Income Per Common Share - Omnicom Group Inc.

Net income - Omnicom Group Inc. decreased$7.2 million, or 0.7%, to $991.1 million in 2013 from $998.3 million in 2012. The year-over-year decrease in net income - Omnicom Group Inc. is due to the factors described above. Diluted net income per common share - Omnicom Group Inc. increased2.8% to $3.71 in 2013, as compared to $3.61 in 2012 due to the factors described above, as well as the slight 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 through the second quarter of 2013, net of stock option exercises, shares issued under our employee stock purchase plan and shares issued upon the conversion of our 2033 Notes and 2038 Notes. In connection with the proposed merger with Publicis, in the third quarter of 2013 we suspended repurchases of our common stock. Excluding the after-tax effect of the merger expenses, net income - Omnicom Group Inc. for 2013 was $1,026.0 million and diluted net income per common share - Omnicom Group Inc. was $3.84.

22

LIQUIDITY AND CAPITAL RESOURCES

Cash Sources and Requirements

The majority of our non-discretionary cash requirements is 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, 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 to common shareholders, 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, as well as, if needed, other available sources of funding, such as issuing commercial paper, borrowing under our $2.5 billion credit line, or Credit Agreement, or other long-term borrowings to finance these activities. We expect to have sufficient liquidity to fund both our non-discretionary cash requirements and our discretionary spending through 2015. However, we may access the capital markets at any time if favorable conditions exist.

We have a seasonal cash requirement normally peaking during the second quarter 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.

Our cash and cash equivalents decreased$322.4 million to $2.4 billion at December 31, 2014, from $2.7 billion at December 31, 2013. The components of the decrease for 2014 are (in millions):

Sources
Cash flow from operations				$	1,476.5
Add back decrease in operating capital				106.2
Principal cash sources				1,582.7
Uses
Capital expenditures	$	(213.0	)
Dividends paid to common shareholders	(468.0		)
Dividends paid to shareholders of noncontrolling interests	(111.3		)
Acquisition payments of $74.9, net of cash acquired, plus payment of contingent purchase price obligations of $83.2 and acquisition of additional shares of noncontrolling interests of $69.5 less net proceeds from sale of investments of $21.0	(206.6		)
Repurchases of common stock of $1,063.0, net of proceeds from stock plans of $39.3 and tax benefits of $29.6	(994.1		)
Principal cash uses				(1,993.0		)
Principal cash uses in excess of principal cash sources				(410.3		)
Foreign exchange rate changes				(273.9		)
Financing activities and other				468.0
Decrease in operating capital				(106.2		)
Decrease in cash and cash equivalents				$	(322.4	)

Principal cash sources and principal cash uses amounts are Non-GAAP financial measures. These amounts exclude changes in working capital and other investing and financing activities, including commercial paper issuances and redemptions used to fund working capital changes. This presentation reflects the metrics used by us to assess our sources and uses of cash and was derived from our statement of cash flows. We believe that this presentation is meaningful for understanding the primary sources and primary uses of our cash flow. 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 as reported by us may not be comparable to similarly titled amounts reported by other companies. Additional information regarding our cash flows can be found in our consolidated financial statements.

23

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 credit lines, the Credit Agreement or issue up to a total of $2 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 credit lines.

As discussed in Cash Sources and Requirements, cash and cash equivalents decreased$322.4 million from December 31, 2013. Short-term investments decreased$16.0 million from December 31, 2013. Short-term investments principally consist of time deposits with financial institutions that we expect to convert into cash within our current operating cycle, generally one year.

At December 31, 2014, total cash and cash equivalents were $2.4 billion, of which our foreign subsidiaries held approximately $1.4 billion. The majority of the 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.

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 our 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.

Our net debt position, which we define as total debt outstanding less cash and cash equivalents and short-term investments, increased$868.9 million at December 31, 2014 as compared to December 31, 2013, primarily as a result of the excess of principal cash uses in excess of principal cash sources of $410.3 million, as described above in Cash Sources and Requirements, a decrease in foreign cash balances of $273.9 million resulting from the translation of local currencies to U.S. Dollars and increases to net debt related to non-cash changes in the interest rate swaps and other items of $184.7 million. The components of net debt for the years ended December 31, 2014 and 2013 were (in millions):

	2014			2013
Debt:
Short-term borrowings, due in less than one year	$	7.2		$	5.9
5.9% Senior Notes due 2016	1,000.0			1,000.0
6.25% Senior Notes due 2019	500.0			500.0
4.45% Senior Notes due 2020	1,000.0			1,000.0
3.625% Senior Notes due 2022	1,250.0			1,250.0
3.65% Senior Notes due 2024	750.0			—
Convertible Notes due 2032	—			252.7
Other debt	0.5			0.5
Unamortized premium (discount) on Senior Notes, net	11.1			14.7
Adjustment to carrying value for interest rate swaps	51.4			15.9
Total debt	4,570.2			4,039.7
Cash and cash equivalents and short-term investments	(2,390.3		)	(2,728.7		)
Net debt	$	2,179.9		$	1,311.0

24

Net debt as reconciled above, is a Non-GAAP financial measure. This presentation, together with the comparable U.S. GAAP measures, reflects one of the key metrics used by us to assess our cash management performance. Non-GAAP financial measures should not be considered in isolation from, or as a substitute for, financial information presented in compliance with US GAAP. Non-GAAP financial measures as reported by us may not be comparable to similarly titled amounts reported by other companies.

As described in Note 7 to the consolidated financial statements, in July 2014, we redeemed our outstanding Convertible Notes due 2032 for $252.7 million in cash and in June 2013, we redeemed our outstanding Convertible Notes due 2033 and the Convertible Notes due 2038 for $406.7 million in cash. In October 2014, we issued $750 million principal amount of our 2024 Notes. The proceeds from the issuance were $747.6 million before deducting underwriting commissions and offering expenses. The issuance of the 2024 Notes, subsequent to the redemption of the convertible notes, essentially restored our financial leverage to approximate historical levels.

On May 1, 2014, we entered into a fixed-to-floating interest rate swap on the $1.25 billion principal amount of the 2022 Notes and, on September 29, 2014, we entered into a fixed-to-floating interest rate swap on the $1 billion principal amount of the 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 swap agreements, we receive fixed interest rate payments equal to the coupon interest rate on the 2022 Notes and the 2020 Notes and pay a variable interest rate on the total principal amount of the notes, equal to three month LIBOR in arrears, plus a spread of 1.05% on the 2022 Notes and a spread of 2.16% on the 2020 Notes. The swaps qualify and are designated as fair value hedges for accounting purposes. 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 attributed to changes in the benchmark interest rate.

Debt Instruments and Related Covenants

We have committed and uncommitted credit lines. On July 31, 2014, we amended the 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 billion of commercial paper.

We typically fund our day-to-day liquidity by issuing commercial paper. Also, we may borrow under our uncommitted credit lines or Credit Agreement to fund our day-to-day liquidity. At December 31, 2014, there were no outstanding commercial paper issuances or borrowings under the Credit Agreement.

Commercial paper activity for the three years ended December 31, 2014 was (dollars in millions):

	2014			2013			2012
Average amount outstanding during the year	$	909.0		$	471.7		$	288.5
Maximum amount outstanding during the year	$	1,795.8		$	1,027.5		$	837.2
Total issuances during the year	$	18,539.9		$	11,786.9		$	13,935.1
Average days outstanding	20.3			14.6			7.6
Weighted average interest rate	0.29		%	0.33		%	0.41		%

At December 31, 2014, short-term borrowings of $7.2 million represent bank overdrafts and credit lines of our international subsidiaries. These bank overdrafts and credit lines 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 to 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 December 31, 2014 we were in compliance with these covenants, as our Leverage Ratio was 2.0 times and our Interest Coverage Ratio was 12.6 times. The Credit Agreement does not limit our ability to declare or pay dividends or repurchase our common stock.

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S&P rates our long-term debt BBB+ and Moody’s rates our long-term debt Baa1. Our short-term debt credit ratings are A2 and P2 by the respective rating agencies. Our outstanding Senior Notes and Credit Agreement do not contain provisions that require acceleration of cash payments in the event our debt credit ratings are downgraded.

Omnicom Capital Inc., or OCI, our wholly-owned finance subsidiary, together with us, is a co-obligor under all the Senior Notes. The Senior Notes are a joint and several liability of us and OCI and we unconditionally guarantee OCI’s obligations with respect to the Senior Notes. OCI provides funding for our operations by incurring debt and lending the proceeds to our operating subsidiaries. OCI’s assets consist of cash and cash equivalents and intercompany loans made to our operating subsidiaries and the related interest receivable. There are no restrictions on the ability of OCI or us to obtain funds from our subsidiaries through dividends, loans or advances. Our Senior Notes are senior unsecured obligations that rank in equal right of payment with all existing and future unsecured senior indebtedness.

At December 31, 2014, the carrying value of our debt and the amount available under the Credit Agreement were (in millions):

	Debt		Available Credit
Short-term borrowings, due in less than one year	$	7.2	$	—
Credit Agreement	—		2,500.0
5.9% Senior Notes due 2016	1,000.0		—
6.25% Senior Notes due 2019	500.0		—
4.45% Senior Notes due 2020	1,000.0		—
3.625% Senior Notes due 2022	1,250.0		—
3.65% Senior Notes due 2024	750.0		—
Other debt	0.5		—
	4,507.7		2,500.0
Unamortized premium (discount) on Senior Notes, net	11.1		—
Adjustment to carrying value for interest rate swaps	51.4		—
	$	4,570.2	$	2,500.0

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 through 2015.

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, disruptions in the credit markets may lead to periods of illiquidity in the commercial paper market and higher credit spreads. To mitigate any future disruption in the credit markets and to fund our day-to-day liquidity we may use our uncommitted credit lines or borrow under our Credit Agreement. 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.

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Contractual Obligations and Other Commercial Commitments

In the normal course of our business we enter into numerous contractual and commercial undertakings. The following tables should be read in conjunction with our consolidated financial statements.

Contractual obligations at December 31, 2014 were (in millions):

			Obligation Due
	Total Obligation		2015		2016 - 2017		2018 - 2019		After 2019
Long-term notes payable:
Principal	$	4,500.5	$	0.4	$	1,000.1	$	500.0	$	3,000.0
Interest	1,070.0		207.4		314.1		282.6		265.9
Lease obligations	1,654.1		366.8		462.3		293.9		531.1
Deferred tax liability - convertible debt	263.1		66.0		132.0		65.1		—
Contingent purchase price obligations	300.7		105.5		159.2		36.0		—
Defined benefit pension plans benefit obligation	222.7		7.6		17.2		19.7		178.2
Postemployment arrangements benefit obligation	122.1		8.7		16.6		13.1		83.7
Uncertain tax positions	139.8		14.0		39.2		85.9		0.7
	$	8,273.0	$	776.4	$	2,140.7	$	1,296.3	$	4,059.6

Commercial commitments at December 31, 2014 were (in millions):

			Commitment Expires
	Total Commitment		2015		2016 - 2017		2018 - 2019		After 2019
Standby letters of credit	$	8.7	$	3.3	$	2.9	$	—	$	2.5
Guarantees	97.8		82.1		12.4		1.4		1.9
	$	106.5	$	85.4	$	15.3	$	1.4	$	4.4

Consistent with our acquisition strategy and past practice, certain of our acquisitions include an initial payment at closing and provide for future additional contingent purchase price payments (earn-outs). Contingent purchase price obligations are recorded as a liability at the acquisition date fair value. Subsequent changes in the fair value of the liability are recorded in our results of operations.

The unfunded benefit obligation for our defined benefit pension plans and liability for our postemployment arrangements was $270.4 million at December 31, 2014. In 2014, we contributed $3.2 million to our defined benefit pension plans and paid $9.2 million in benefits for our postemployment arrangements. We do not expect these payments to increase significantly in 2015.

The liability for uncertain tax positions is subject to uncertainty as to when or if the liability will be paid. We have assigned the liability to the periods presented based on our judgment as to when these liabilities will be resolved by the appropriate taxing authorities.

In the normal course of our 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 business, results of operations and financial position.

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In addition, methods of managing the risk of payment defaults, 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.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

As a global business, we operate in multiple foreign currencies and issue debt in the capital markets. Our regional treasury centers use derivative financial instruments, such as forward foreign exchange contracts, as an economic hedge to better manage the cash flow volatility arising from foreign exchange rate fluctuations. We use derivative financial instruments, such as fixed-to-floating interest rate swaps, to manage the cost of debt more efficiently.

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.

We evaluate the effects of changes in foreign currency exchange rates, interest rates and other relevant market risks on our derivative instruments. We periodically determine the potential loss from market risk on our derivative instruments by performing a value-at-risk, or VaR, analysis. VaR is a statistical model that utilizes historical currency exchange and interest rate data to measure the potential impact on future earnings of our derivative financial instruments assuming normal market conditions. The VaR model is not intended to represent actual losses but is used as a risk estimation and management tool. Based on the results of the model, we estimate with 95% confidence a maximum one-day change in the net fair value of our derivative financial instruments at December 31, 2014 was not significant.

Foreign Exchange Risk

Our results of operations are subject to risk from the translation to U.S. Dollars of the revenue and expenses of our foreign operations, which are generally denominated in their local currency. The effects of currency exchange rate fluctuation on the translation of our results of operations are discussed in Note 19 of the consolidated financial statements. For the most part, revenue and expenses of our foreign operations are denominated in the same currency, which minimizes the economic impact of fluctuations in exchange rates on our results of operations.

While our major non-U.S. currency markets are the European Monetary Union, the United Kingdom, Australia, Brazil, Canada, China and Japan, our agencies conduct business in more than 50 different currencies. As an integral part of our treasury operations, we centralize our cash and use multicurrency pool arrangements to manage the foreign exchange risk between subsidiaries and their respective treasury centers from which they borrow or invest funds. In certain circumstances, instead of using a multicurrency pool, operations can borrow or invest on an intercompany basis with a treasury center operating in a different currency. To manage the foreign exchange risk associated with these transactions, we use forward foreign exchange contracts. At December 31, 2014, we had outstanding forward foreign exchange contracts with an aggregate notional amount of $113.1 million mitigating the foreign exchange risk of the intercompany borrowing and investment activities. Also, we use forward foreign exchange contracts to mitigate the foreign currency risk associated with activities when revenue and expenses are not denominated in the same currency. In these instances, amounts are promptly settled or hedged with forward contracts. At December 31, 2014, we had outstanding forward foreign exchange contracts with an aggregate notional amount of $44.0 million mitigating the foreign exchange risk of these activities. We designate foreign currency derivative instruments as an economic hedge; therefore, any gain or loss in fair value incurred on those instruments is generally offset by decreases or increases in the fair value of the underlying exposures. By using these financial instruments, we reduced financial risk of adverse foreign exchange changes by foregoing any gain (reward) which might have occurred if the markets moved favorably.

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Interest Rate Risk

Our exposure to interest rate risk has been limited because our Senior Notes are fixed rate debt. In 2014, to manage our annual interest cost more efficiently by benefiting from a decline in interest rates, we used fixed-to-floating interest rate swaps to convert specific fixed rate debt into variable rate debt. In 2014, we entered into fixed-to-floating interest rate swaps on the $1.25 billion principal amount of the 2022 Notes and the $1 billion principal amount of the 2020 Notes. Under the swap agreements, we receive fixed interest rate payments equal to the coupon interest rate on the 2022 Notes and the 2020 Notes and we pay a variable interest rate on the total principal amount of the notes, equal to three month LIBOR in arrears, plus a spread of 1.05% on the 2022 Notes and a spread of 2.16% on the 2020 Notes. The swaps have the economic effect of converting the 2022 Notes and the 2020 Notes from fixed rate debt to floating rate debt and effectively convert our long-term debt portfolio to 50% fixed rate debt and 50% floating rate debt. At December 31, 2014, we recorded a receivable, which is included in other assets, of $42.7 million representing the fair value of the swaps that was substantially offset by the increase in the carrying value of the 2022 Notes and the 2020 Notes reflecting the change in fair value of the notes.

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 we grant credit to qualified clients in the normal course of business. 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 2.6% of revenue in 2014 and no other client accounted for more than 2.5% of revenue. However, during periods of economic downturn, the credit profiles of our clients could change.

In the normal course of our 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 business, results of operations and financial position.

In addition, methods of managing the risk of payment defaults, 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.

Item 8. Financial Statements and Supplementary Data

See Item 15 Exhibits, Financial Statement Schedules.

Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure

None.

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Item 9A. Controls and Procedures

We maintain disclosure controls and procedures designed to ensure that information required to be disclosed in reports we file with the SEC 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 the reports we file or submit 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 December 31, 2014. Based on that evaluation, our CEO and CFO concluded that, as of December 31, 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 Annual Report on Form 10-K for the year ended December 31, 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). Management, with the participation of our CEO, CFO and our agencies, conducted an evaluation of the effectiveness of our internal control over financial reporting based on the framework in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on that evaluation, our CEO and CFO concluded that our internal control over financial reporting was effective as of December 31, 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 this Annual Report on Form 10-K, has issued an attestation report on Omnicom’s internal control over financial reporting as of December 31, 2014, dated February 10, 2015.

Item 9B. Other Information

None.

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PART III

Item 10. Directors, Executive Officers and Corporate Governance

The information regarding Executive Officers of the Registrant is included in Part I, Item 1, “Business.” Additional information called for by this Item, to the extent not included in this document, is incorporated herein by reference to the information to be included under the captions “Corporate Governance,” “Items To Be Voted On - Item 1 - Election of Directors,” “Additional Information - Section 16(a) Beneficial Ownership Reporting Compliance” and “Shareholder Proposals For The 2016 Annual Meeting” in our definitive proxy statement, which is expected to be filed with the SEC within 120 days of the fiscal year ended December 31, 2014, or our Proxy Statement.

Item 11. Executive Compensation

The information called for by this Item is incorporated herein by reference to the information to be included under the captions “Executive Compensation,” “Directors' Compensation For Fiscal 2014” and “Corporate Governance - Compensation Committee Interlocks and Insider Participation” in our Proxy Statement.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information called for by this Item is incorporated herein by reference to the information to be included under the captions “Equity Compensation Plans” and “Stock Ownership” in our Proxy Statement.

Item 13. Certain Relationships and Related Transactions, and Director Independence

The information called for by this Item is incorporated herein by reference to the information to be included under the captions “Additional Information - Transactions with Related Persons” and “Corporate Governance - Board Composition and Leadership; Stock Ownership Guidelines” in our Proxy Statement.

Item 14. Principal Accounting Fees and Services

The information called for by this Item is incorporated herein by reference to the information to be included under the caption “Audit Related Matters - Fees Paid to Independent Auditors” in our Proxy Statement.

PART IV

Item 15. Exhibits, Financial Statement Schedules

(a)(1)	Financial Statements:	Page
	Management Report on Internal Control Over Financial Reporting	F-1
	Report of Independent Registered Public Accounting Firm	F-2
	Report of Independent Registered Public Accounting Firm	F-3
	Consolidated Balance Sheets at December 31, 2014 and 2013	F-4
	Consolidated Statements of Income for the Three Years Ended December 31, 2014	F-5
	Consolidated Statements of Comprehensive Income for the Three Years Ended December 31, 2014	F-6
	Consolidated Statements of Equity for the Three Years Ended December 31, 2014	F-7
	Consolidated Statements of Cash Flows for the Three Years Ended December 31, 2014	F-8
	Notes to Consolidated Financial Statements	F-9
	Selected Quarterly Financial Data (Unaudited)	F-35
(a)(2)	Financial Statement Schedules:
	Schedule II - Valuation and Qualifying Accounts for the Three Years Ended December 31, 2014	S-1
	All other schedules are omitted because they are not applicable.

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(a)(3)	Exhibits:
Exhibit Number	Description
3(i)	Restated Certificate of Incorporation of Omnicom Group Inc. (Exhibit 3.1 to our Quarterly Report on Form 10-Q (File No. 1-10551) for the quarter ended September 30, 2011 and incorporated herein by reference).
3(ii)	By-laws of Omnicom Group Inc., as amended and restated on May 22, 2012 (Exhibit 3.2 to our Current Report on Form 8-K (File No. 1-10551) dated May 24, 2012 and incorporated herein by reference).
4.1	Form of Senior Debt Securities Indenture (Exhibit 4.1 to our Registration Statement on Form S-3 (Registration No. 333-132625) dated March 22, 2006 and incorporated herein by reference).
4.2	First Supplemental Indenture to the Form of the Senior Debt Securities Indenture, dated as of March 29, 2006, among Omnicom Group Inc., Omnicom Capital Inc., Omnicom Finance Inc. and JPMorgan Chase Bank, N.A., as trustee, in connection with our issuance of $1 billion 5.9% Notes due 2016 (Exhibit 4.2 to our Current Report on Form 8-K (File No. 1-10551) dated March 29, 2006 (“March 29, 2006 8-K”) and incorporated herein by reference).
4.3	Second Supplemental Indenture to the Form of the Senior Debt Securities Indenture, dated as of July 20, 2012, among Omnicom Group Inc., Omnicom Capital Inc. and Deutsche Bank Trust Company Americas, as trustee, (Exhibit 4.3 to the July 20, 2012 8-K and incorporated herein by reference).
4.4	Form of 5.9% Notes due 2016 (Exhibit 4.3 to the March 29, 2006 8-K and incorporated herein by reference).
4.5	Indenture, dated as of July 1, 2009, among Omnicom Group Inc., Omnicom Capital Inc., Omnicom Finance Inc. and Deutsche Bank Trust Company Americas, as trustee (“2009 Base Indenture”) (Exhibit 4.1 to our Current Report on Form 8-K (File No. 1-10551) dated July 1, 2009 (“July 1, 2009 8-K”) and incorporated herein by reference).
4.6	First Supplemental Indenture to the 2009 Base Indenture, dated as of July 1, 2009, among Omnicom Group Inc., Omnicom Capital Inc., Omnicom Finance Inc. and Deutsche Bank Trust Company Americas, as trustee, in connection with our issuance of $500 million 6.25% Senior Notes due 2019 (Exhibit 4.2 to the July 1, 2009 8-K and incorporated herein by reference).
4.7	Second Supplemental Indenture to the 2009 Base Indenture, dated as of August 5, 2010, among Omnicom Group Inc., Omnicom Capital Inc., Omnicom Finance Inc. and Deutsche Bank Trust Company Americas, as trustee, in connection with our issuance of $1 billion 4.45% Senior Notes due 2020 (Exhibit 4.1 to our Current Report on Form 8-K (File No. 1-10551) dated August 5, 2010 (“August 5, 2010 8-K”) and incorporated herein by reference).
4.8	Third Supplemental Indenture to the 2009 Base Indenture, dated as of April 23, 2012, among Omnicom Group Inc., Omnicom Capital Inc., Omnicom Finance Inc. and Deutsche Bank Trust Company Americas, as trustee, in connection with our issuance of $750 million 3.625% Senior Notes due 2022 (Exhibit 4.1 to our Current Report on Form 8-K (File No. 1-10551) dated April 23, 2012 and incorporated herein by reference).
4.9	Fourth Supplemental Indenture to the 2009 Base Indenture, dated as of July 20, 2012, among Omnicom Group Inc., Omnicom Capital Inc. and Deutsche Bank Trust Company Americas, as trustee, (Exhibit 4.4 to July 20, 2012 8-K and incorporated herein by reference).
4.10	Fifth Supplemental Indenture to the 2009 Base Indenture, dated as of August 9, 2012, among Omnicom Group Inc., Omnicom Capital Inc. and Deutsche Bank Trust Company Americas, as trustee, in connection with our issuance of $500 million 3.625% Senior Notes due 2022 (Exhibit 4.1 to our Current Report on Form 8-K (File No. 1-10551) dated August 9, 2012 (“August 9, 2012 8-K”) and incorporated herein by reference).
4.11	Form of 6.25% Notes due 2019 (Exhibit 4.3 to the July 1, 2009 8-K and incorporated herein by reference).
4.12	Form of 4.45% Notes due 2020 (Exhibit 4.2 to the August 5, 2010 8-K and incorporated herein by reference).
4.13	Form of 3.625% Notes due 2022 (Exhibit 4.2 to the August 9, 2012 8-K and incorporated herein by reference).
4.14	Base Indenture, dated as of October 29, 2014, among Omnicom Group Inc., Omnicom Capital Inc. and Deutsche Bank Trust Company Americas, as trustee, (Exhibit 4.1 to our Current report on Form 8-K (File No. 1-10551) dated October 29, 2014 (“October 29, 2014 8-K”) and incorporated herein by reference).
4.15	First Supplemental Indenture, dated as of October 29, 2014, among Omnicom Group Inc., Omnicom Capital Inc. and Deutsche Bank Trust Company Americas, as trustee, in connection with our issuance of $750 million 3.65% Senior Notes due 2024 (Exhibit 4.2 to October 29, 2014 8-K and incorporated herein by reference).
4.16	Form of 3.65% Notes due 2024 (Exhibit 4.3 to October 29, 2014 8-K and incorporated herein by reference).

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10.1	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).
10.2	Instrument of Resignation, Appointment and Acceptance, dated October 5, 2006, among Omnicom Group Inc., Omnicom Capital Inc., Omnicom Finance Inc., JPMorgan Chase Bank, N.A. and Deutsche Bank Trust Company Americas (Exhibit 10.1 to our Current Report on Form 8-K (File No. 1-10551) dated October 11, 2006 and incorporated herein by reference).
10.3	Amended and Restated 1998 Incentive Compensation Plan (Exhibit B to our Proxy Statement (File No. 1-10551) filed on April 10, 2000 and incorporated herein by reference).
10.4	Director Equity Plan for Non-employee Directors (Appendix B to our Proxy Statement (File No. 1-10551) filed on April 23, 2004 and incorporated herein by reference).
10.5	Standard form of our Executive Salary Continuation Plan Agreement (Exhibit 10.5 to our Annual Report on Form 10-K (File No. 1-10551) for the year ended December 31, 2012 (“2012 10-K”) and incorporated herein by reference).
10.6	Standard form of the Director Indemnification Agreement (Exhibit 10.25 to our Annual Report on Form 10-K (File No. 1-10551) for the year ended December 31, 1989 and incorporated herein by reference).
10.7	Equity Incentive Plan (Exhibit 4.3 to our Registration Statement on Form S-8 (Registration No. 333-108063) dated August 18, 2003 and incorporated herein by reference).
10.8	Senior Management Incentive Plan as amended and restated on December 4, 2008 (Exhibit 10.9 to our Annual Report on Form 10-K (File No. 1-10551) for the year ended December 31, 2008 (“2008 10-K”) and incorporated herein by reference).
10.9	Omnicom Group Inc. SERCR Plan (Exhibit 10.10 to our Annual Report on Form 10-K (File No. 1-10551) for the year ended December 31, 2011 and incorporated herein by reference).
10.10	Form of Award Agreement under the Omnicom Group Inc. SERCR Plan (Exhibit 10.2 to our Current Report on Form 8-K (File No. 1-10551) dated December 13, 2006 and incorporated herein by reference).
10.11	Omnicom Group Inc. Amended and Restated 2007 Incentive Award Plan (Appendix A to our Proxy Statement (File No. 1-10551) filed on April 15, 2010 and incorporated herein by reference).
10.12	Form of Indemnification Agreement (Exhibit 10.1 to our Quarterly Report on Form 10-Q (File No. 1-10551) for the quarter ended June 30, 2007 and incorporated herein by reference).
10.13	Director Compensation and Deferred Stock Program (Exhibit 10.13 to the 2012 10-K and incorporated herein by reference).
10.14	Restricted Stock Unit Deferred Compensation Plan (Exhibit 10.16 to the 2008 10-K and incorporated herein by reference).
10.15	Restricted Stock Deferred Compensation Plan (Exhibit 10.17 to the 2008 10-K and incorporated herein by reference).
10.16	Amendment No. 1 to the Restricted Stock Deferred Compensation Plan (Exhibit 10.18 to the 2008 10-K and incorporated herein by reference).
10.17	Amendment No. 2 to the Restricted Stock Deferred Compensation Plan (Exhibit 10.19 to the 2008 10-K and incorporated herein by reference).
10.18	Form of Grant Notice and Option Agreement (Exhibit 10.20 to our Annual Report on Form 10-K (File No. 1-10551) for the year ended December 31, 2010 (“2010 10-K”) and incorporated herein by reference).

33

10.19	Form of Grant Notice and Restricted Stock Agreement (Exhibit 10.21 to 2010 10-K and incorporated herein by reference).
10.20	Form of Grant Notice and Restricted Stock Unit Agreement (Exhibit 10.22 to 2010 10-K and incorporated herein by reference).
10.21	Form of Grant Notice and Performance Restricted Stock Unit Agreement (Exhibit 10.1 to our Quarterly Report on Form 10-Q (File No. 1-10551) for the quarter ended June 30, 2011 and incorporated herein by reference).
10.22	Omnicom Group Inc. 2013 Incentive Award Plan (Appendix A to our Proxy Statement (File No. 1-10551) filed on April 11, 2013 and incorporated herein by reference).
10.23	Separation Agreement and General Release between Omnicom Management Inc. and Randall J. Weisenburger.
12	Computation of Ratio of Earnings to Fixed Charges.
21	Subsidiaries of the Registrant.
23	Consent of KPMG LLP.
31.1	Certification of Chief Executive Officer and President required by Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended.
31.2	Certification of 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.

34

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) 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.
February 10, 2015	BY:	/s/ PHILIP J. ANGELASTRO
		Philip J. Angelastro Executive Vice President and Chief Financial Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature	Title	Date
/s/ BRUCE CRAWFORD	Chairman and Director	February 10, 2015
Bruce Crawford
/s/ JOHN D. WREN	Chief Executive Officer and President and Director (Principal Executive Officer)	February 10, 2015
John D. Wren
/s/ PHILIP J. ANGELASTRO	Executive Vice President and Chief Financial Officer (Principal Financial Officer)	February 10, 2015
Philip J. Angelastro
/s/ ANDREW L. CASTELLANETA	Senior Vice President, Chief Accounting Officer (Principal Accounting Officer)	February 10, 2015
Andrew L. Castellaneta
/s/ ALAN R. BATKIN	Director	February 10, 2015
Alan R. Batkin
/s/ MARY C. CHOKSI	Director	February 10, 2015
Mary C. Choksi
/s/ ROBERT CHARLES CLARK	Director	February 10, 2015
Robert Charles Clark
/s/ LEONARD S. COLEMAN, JR.	Director	February 10, 2015
Leonard S. Coleman, Jr.
/s/ ERROL M. COOK	Director	February 10, 2015
Errol M. Cook
/s/ SUSAN S. DENISON	Director	February 10, 2015
Susan S. Denison
/s/ MICHAEL A. HENNING	Director	February 10, 2015
Michael A. Henning
/s/ JOHN R. MURPHY	Director	February 10, 2015
John R. Murphy
/s/ JOHN R. PURCELL	Director	February 10, 2015
John R. Purcell
/s/ LINDA JOHNSON RICE	Director	February 10, 2015
Linda Johnson Rice
/s/ GARY L. ROUBOS	Director	February 10, 2015
Gary L. Roubos

35

MANAGEMENT REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

Management is responsible for the preparation of the consolidated financial statements and related information of Omnicom Group Inc. (“Omnicom”). Management uses its best judgment to ensure that the consolidated financial statements present fairly, in all material respects, Omnicom’s consolidated financial position and results of operations in conformity with generally accepted accounting principles in the United States.

The financial statements have been audited by an independent registered public accounting firm in accordance with the standards of the Public Company Accounting Oversight Board. Their report expresses the independent accountant’s judgment as to the fairness of management’s reported financial position, results of operations and cash flows. This judgment is based on the procedures described in the second paragraph of their report.

Omnicom management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Securities Exchange Act Rule 13a-15(f). Management, with the participation of our Chief Executive Officer, or CEO, Chief Financial Officer, or CFO, and our agencies, conducted an evaluation of the effectiveness of our internal control over financial reporting based on the framework in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on that evaluation, our CEO and CFO concluded that our internal control over financial reporting was effective as of December 31, 2014. There have not been any changes in our internal control over financial reporting during our fourth fiscal quarter that have materially affected or are reasonably likely to affect our internal control over financial reporting.

KPMG LLP, an independent registered public accounting firm that audited our consolidated financial statements included in this Annual Report on Form 10-K, has issued an attestation report on Omnicom’s internal control over financial reporting as of December 31, 2014, dated February 10, 2015.

The Board of Directors of Omnicom has an Audit Committee comprised of five independent directors. The Audit Committee meets periodically with financial management, Internal Audit and the independent auditors to review accounting, control, audit and financial reporting matters.

F-1

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors and Shareholders of

Omnicom Group Inc.:

We have audited the accompanying consolidated balance sheets of Omnicom Group Inc. and subsidiaries (the “Company”) as of December 31, 2014 and 2013, and the related consolidated statements of income, comprehensive income, equity and cash flows for each of the years in the three-year period ended December 31, 2014. In connection with our audits of the consolidated financial statements, we also have audited financial statement schedule II. These consolidated financial statements and financial statement schedule are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements and financial statement schedule based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Omnicom Group Inc. and subsidiaries as of December 31, 2014 and 2013, and the results of their operations and their cash flows for each of the years in the three-year period ended December 31, 2014, in conformity with U.S. generally accepted accounting principles. Also, in our opinion, the related financial statement schedule on page S-1, when considered in relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), Omnicom Group Inc. and subsidiaries' internal control over financial reporting as of December 31, 2014, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), and our report dated February 10, 2015 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.

/s/ KPMG LLP

New York, New York

February 10, 2015

F-2

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors and Shareholders of

Omnicom Group Inc.:

We have audited Omnicom Group Inc. and subsidiaries’ (the “Company”) internal control over financial reporting as of December 31, 2014, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company’s management is responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, Omnicom Group Inc. and subsidiaries maintained, in all material respects, effective internal control over financial reporting as of December 31, 2014, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of Omnicom Group Inc. and subsidiaries as of December 31, 2014 and 2013, and the related consolidated statements of income, comprehensive income, equity and cash flows for each of the years in the three-year period ended December 31, 2014, and our report dated February 10, 2015 expressed an unqualified opinion on those consolidated financial statements.

/s/ KPMG LLP

New York, New York

February 10, 2015

F-3

OMNICOM GROUP INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(In millions, except per share amounts)

	December 31,
	2014			2013
ASSETS
Current Assets:
Cash and cash equivalents	$	2,388.1		$	2,710.5
Short-term investments, at cost	2.2			18.2
Accounts receivable, net of allowance for doubtful accounts of $24.9 and $32.6	6,524.7			6,632.6
Work in process	1,166.6			1,288.0
Other current assets	1,108.9			1,003.0
Total Current Assets	11,190.5			11,652.3
Property and Equipment at cost, less accumulated depreciation of $1,221.2 and $1,230.1	708.0			737.4
Equity Method Investments	148.2			131.8
Goodwill	8,822.2			8,916.0
Intangible Assets, net of accumulated amortization of $611.4 and $552.3	389.4			386.0
Other Assets	301.4			275.2
TOTAL ASSETS	$	21,559.7		$	22,098.7
LIABILITIES AND EQUITY
Current Liabilities:
Accounts payable	$	8,165.0		$	8,358.9
Customer advances	1,180.9			1,242.2
Current portion of debt	0.4			0.4
Short-term borrowings	7.2			5.9
Taxes payable	301.1			293.3
Other current liabilities	2,406.5			2,377.0
Total Current Liabilities	12,061.1			12,277.7
Long-Term Notes Payable	4,562.6			3,780.7
Convertible Debt	—			252.7
Long-Term Liabilities	774.3			685.1
Long-Term Deferred Tax Liabilities	654.7			832.6
Commitments and Contingent Liabilities (See Note 17)
Temporary Equity - Redeemable Noncontrolling Interests	185.7			202.0
Equity:
Shareholders’ Equity:
Preferred stock, $1.00 par value, 7.5 million shares authorized, none issued	—			—
Common stock, $0.15 par value, 1.0 billion shares authorized, 397.2 million shares issued, 246.7 million and 257.6 million shares outstanding	59.6			59.6
Additional paid-in capital	818.6			817.1
Retained earnings	9,576.9			8,961.2
Accumulated other comprehensive income (loss)	(618.2		)	(191.6		)
Treasury stock, at cost, 150.5 million and 139.6 million shares	(6,986.9		)	(6,063.9		)
Total Shareholders’ Equity	2,850.0			3,582.4
Noncontrolling interests	471.3			485.5
Total Equity	3,321.3			4,067.9
TOTAL LIABILITIES AND EQUITY	$	21,559.7		$	22,098.7

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

F-4

OMNICOM GROUP INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

(In millions, except per share amounts)

	Years Ended December 31,
	2014		2013		2012
Revenue	$	15,317.8	$	14,584.5	$	14,219.4
Operating Expenses	13,373.7		12,759.2		12,415.2
Operating Income	1,944.1		1,825.3		1,804.2
Interest Expense	177.2		197.2		179.7
Interest Income	43.1		32.8		35.1
Income Before Income Taxes and Income (Loss) From     Equity Method Investments	1,810.0		1,660.9		1,659.6
Income Tax Expense	593.1		565.2		527.1
Income (Loss) From Equity Method Investments	16.2		15.9		(15.0		)
Net Income	1,233.1		1,111.6		1,117.5
Net Income Attributed To Noncontrolling Interests	129.1		120.5		119.2
Net Income - Omnicom Group Inc.	$	1,104.0	$	991.1	$	998.3
Net Income Per Share - Omnicom Group Inc.:
Basic	$	4.27	$	3.73	$	3.64
Diluted	$	4.24	$	3.71	$	3.61
Dividends Declared Per Common Share	$	1.90	$	1.60	$	1.20

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

F-5

OMNICOM GROUP INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(In millions)

	Years Ended December 31,
	2014			2013			2012
Net Income	$	1,233.1		$	1,111.6		$	1,117.5
Unrealized gain (loss) on available-for-sale securities, net of income taxes of $0.2 and $0.2 and $0.2 for 2014, 2013 and 2012, respectively	0.4			0.4			0.3
Foreign currency translation adjustment, net of income taxes of ($227.9) and ($62.3) and $41.3 for 2014, 2013 and 2012, respectively	(442.4		)	(120.6		)	80.3
Defined benefit pension and postemployment plans adjustment, net of income taxes of ($15.5) and $14.1 and ($14.5) for 2014, 2013 and 2012, respectively	(23.3		)	21.0			(21.7		)
Other Comprehensive Income (Loss)	(465.3		)	(99.2		)	58.9
Comprehensive Income	767.8			1,012.4			1,176.4
Comprehensive Income Attributed To Noncontrolling Interests	(90.4		)	(83.4		)	(115.9		)
Comprehensive Income - Omnicom Group Inc.	$	677.4		$	929.0		$	1,060.5

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

F-6

OMNICOM GROUP INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF EQUITY

Three Years Ended December 31, 2014

(In millions, except per share amounts)

	Omnicom Group Inc.
	Common Stock			Additional Paid-in Capital			Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Treasury Stock			Total Shareholders’ Equity			Noncontrolling  Interests			Total Equity
	Shares	Par Value
Balance as of December 31, 2011	397.2	$	59.6	$	1,043.5		$	7,724.1		$	(191.7	)	$	(5,131.2	)	$	3,504.3		$	475.5		$	3,979.8
Net Income							998.3									998.3			119.2			1,117.5
Other comprehensive income (loss)										62.2						62.2			(3.3		)	58.9
Dividends to noncontrolling interests																			(98.4		)	(98.4		)
Acquisition of noncontrolling interests				(28.1		)										(28.1		)	(21.2		)	(49.3		)
Increase in noncontrolling interests from business combinations																			23.7			23.7
Change in temporary equity				4.7												4.7						4.7
Common stock dividends declared ($1.20 per share)							(328.0		)							(328.0		)				(328.0		)
Share-based compensation				80.8												80.8						80.8
Stock issued, share-based compensation				(264.3		)							567.4			303.1						303.1
Repurchases of common stock													(1,136.5		)	(1,136.5		)				(1,136.5		)
Balance as of December 31, 2012	397.2	59.6		836.6			8,394.4			(129.5		)	(5,700.3		)	3,460.8			495.5			3,956.3
Net Income							991.1									991.1			120.5			1,111.6
Other comprehensive income (loss)										(62.1		)				(62.1		)	(37.1		)	(99.2		)
Dividends to noncontrolling interests																			(100.6		)	(100.6		)
Acquisition of noncontrolling interests				(16.8		)										(16.8		)	(8.2		)	(25.0		)
Increase in noncontrolling interests from business combinations																			15.4			15.4
Change in temporary equity				(3.6		)										(3.6		)				(3.6		)
Shares issued for conversion of convertible notes				(34.3		)							68.8			34.5						34.5
Common stock dividends declared ($1.60 per share)							(424.3		)							(424.3		)				(424.3		)
Share-based compensation				86.3												86.3						86.3
Stock issued, share-based compensation				(51.1		)							142.9			91.8						91.8
Repurchases of common stock													(575.3		)	(575.3		)				(575.3		)
Balance as of December 31, 2013	397.2	59.6		817.1			8,961.2			(191.6		)	(6,063.9		)	3,582.4			485.5			4,067.9
Net Income							1,104.0									1,104.0			129.1			1,233.1
Other comprehensive income (loss)										(426.6		)				(426.6		)	(38.7		)	(465.3		)
Dividends to noncontrolling interests																			(111.3		)	(111.3		)
Acquisition of noncontrolling interests				(64.5		)										(64.5		)	(27.8		)	(92.3		)
Increase in noncontrolling interests from business combinations																			34.5			34.5
Change in temporary equity				7.9												7.9						7.9
Shares issued for conversion of convertible notes				(25.5		)							57.7			32.2						32.2
Common stock dividends declared ($1.90 per share)							(488.3		)							(488.3		)				(488.3		)
Share-based compensation				93.5												93.5						93.5
Stock issued, share-based compensation				(9.9		)							82.3			72.4						72.4
Repurchases of common stock													(1,063.0		)	(1,063.0		)				(1,063.0		)
Balance as of December 31, 2014	397.2	$	59.6	$	818.6		$	9,576.9		$	(618.2	)	$	(6,986.9	)	$	2,850.0		$	471.3		$	3,321.3

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

F-7

OMNICOM GROUP INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In millions)

	Years Ended December 31,
	2014			2013			2012
Cash Flows from Operating Activities:
Net income	$	1,233.1		$	1,111.6		$	1,117.5
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	187.3			184.0			181.6
Amortization of intangible assets	107.1			100.8			101.1
Impairment charge on equity method investment, net	—			10.7			29.2
Share-based compensation	93.5			86.3			80.8
Excess tax benefit from share-based compensation	(29.6		)	(37.8		)	(85.3		)
Other, net	(8.7		)	2.1			1.2
Change in operating capital	(106.2		)	351.3			25.2
Net Cash Provided By Operating Activities	1,476.5			1,809.0			1,451.3
Cash Flows from Investing Activities:
Capital expenditures	(213.0		)	(212.0		)	(226.3		)
Acquisition of businesses and interests in affiliates, net of cash acquired	(74.9		)	(32.8		)	(132.7		)
Proceeds from investments, net	21.0			16.6			8.6
Net Cash Used In Investing Activities	(266.9		)	(228.2		)	(350.4		)
Cash Flows from Financing Activities:
Repayment of short-term debt	2.1			(0.4		)	(3.3		)
Proceeds from borrowings	747.6			—			1,273.2
Redemption of convertible debt	(252.7		)	(406.7		)	—
Dividends paid to common shareholders	(468.0		)	(318.4		)	(397.8		)
Repurchases of common stock	(1,063.0		)	(575.3		)	(1,136.5		)
Proceeds from stock plans	39.3			52.3			219.2
Acquisition of additional noncontrolling interests	(69.5		)	(8.9		)	(32.0		)
Dividends paid to noncontrolling interest shareholders	(111.3		)	(100.6		)	(98.4		)
Payment of contingent purchase price obligations	(83.2		)	(70.5		)	(32.2		)
Excess tax benefit from share-based compensation	29.6			37.8			85.3
Other, net	(29.0		)	(29.1		)	(97.6		)
Net Cash Used In Financing Activities	(1,258.1		)	(1,419.8		)	(220.1		)
Effect of foreign exchange rate changes on cash and cash equivalents	(273.9		)	(128.8		)	16.3
Net (Decrease) Increase in Cash and Cash Equivalents	(322.4		)	32.2			897.1
Cash and Cash Equivalents at the Beginning of Year	2,710.5			2,678.3			1,781.2
Cash and Cash Equivalents at the End of Year	$	2,388.1		$	2,710.5		$	2,678.3

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

F-8

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

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 consolidated financial statements were prepared in accordance with generally accepted accounting principles in the United States (“U.S. GAAP” or “GAAP”). All intercompany balances and transactions have been eliminated.

The preparation of financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates and assumptions.

2. Significant Accounting Policies

Revenue Recognition. We recognize revenue in accordance with FASB Accounting Standards Codification (“FASB ASC”) Topic 605, Revenue Recognition, and applicable SEC Staff Accounting Bulletins. Substantially all of our revenue is derived from fees for services based on a rate per hour or equivalent basis. Revenue is realized when the service is performed in accordance with the client arrangement and upon the completion of the earnings process. Prior to recognizing revenue, persuasive evidence of an arrangement must exist, the sales price must be fixed or determinable, delivery, performance and acceptance must be in accordance with the client arrangement and collection must be reasonably assured. These principles are the foundation of our revenue recognition policy and apply to all client arrangements in each of our service disciplines: advertising, customer relationship management, public relations and specialty communications. Certain of our businesses earn a portion of their revenue as commissions based on performance in accordance with client arrangements. Because the services that we provide across each of our disciplines are similar and delivered to clients in similar ways, all of the key elements of our revenue recognition policy apply to client arrangements in each of our four disciplines. Revenue is recorded net of sales, use and value added taxes.

In the majority of our businesses, we act as an agent and record revenue equal to the net amount retained when the fee or commission is earned. Although we may bear credit risk with respect to these activities, the arrangements with our clients are such that we act as an agent on their behalf. In these cases, costs incurred with third-party suppliers are excluded from our revenue. In certain arrangements, we act as principal and we contract directly with third-party suppliers and media providers and production companies and we are responsible for payment. In these circumstances, revenue is recorded at the gross amount billed since revenue has been earned for the sale of goods or services.

Some of our client arrangements include performance incentive provisions designed to link a portion of our revenue to our performance relative to quantitative and qualitative goals. We recognize performance incentives in revenue when specific quantitative goals are achieved, or when our performance against qualitative goals is determined by the client.

Operating Expenses. Operating expenses are comprised of 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 costs consist of rent and occupancy costs, technology costs, depreciation and amortization and other overhead expenses. In 2014 and 2013 we incurred $8.8 million and $41.4 million, respectively, of expenses in connection with the proposed merger with Publicis Groupe S.A. (“Publicis”), which were primarily comprised of professional fees. On May 8, 2014, the proposed merger was terminated (see Note 5).

Operating expenses for the three years ended December 31, 2014 were (in millions):

	2014		2013		2012
Salary and service costs	$	11,350.0	$	10,724.4	$	10,406.8
Office and general expenses	2,023.7		2,034.8		2,008.4
	$	13,373.7	$	12,759.2	$	12,415.2

F-9

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Cash and Cash Equivalents. Highly liquid investments consisting of interest-bearing time deposits with original maturities of three months or less are classified as cash equivalents. 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.

Short-Term Investments. 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. Short-term investments are carried at cost, which approximates fair value.

Work in Process. Work in process consists of costs incurred on behalf of clients in providing advertising, marketing and corporate communications services, including media and production costs, and fees that have not yet been billed. Media and production costs are billed during the production process and fees are normally billed within the next 30 days.

Property and Equipment. Property and equipment are carried at cost less accumulated depreciation. Depreciation is provided on a straight-line basis over the estimated useful lives of the assets ranging from seven to ten years for furniture and three to five years for equipment. Leasehold improvements are amortized on a straight-line basis over the shorter of the related lease term or the estimated useful life of the asset. Property under capital lease is depreciated on a straight-line basis over the lease term.

Equity Method Investments. Investments in non-public companies in which we own less than a 50% equity interest and where we exercise significant influence over the operating and financial policies of the investee are accounted for using the equity method of accounting. Our proportionate share of the net income or loss of the equity method investments is included in our results of operations and dividends received reduce the carrying value of our investment. The excess of the cost of our investment over our proportionate share of the fair value of the net assets of the investee at the acquisition date is recognized as goodwill and included in the carrying amount of the investment. Goodwill in our equity method investments is not amortized. We periodically review the carrying value of these investments to determine if there has been an other-than-temporary decline in carrying value. A variety of factors are considered when determining if a decline in carrying value is other-than-temporary, including, among others, the financial condition and business prospects of the investee, as well as our investment intent.

Cost Method Investments. Investments in non-public companies in which we own less than a 20% equity interest and where we do not exercise significant influence over the operating and financial policies of the investee are accounted for using the cost method of accounting. We periodically review the carrying value of these investments to determine if there has been an other-than-temporary decline in fair value below carrying value. A variety of factors are considered when determining if a decline in fair value below carrying value is other-than-temporary, including, among others, the financial condition and business prospects of the investee, as well as our investment intent. Cost method investments are carried at cost, which approximates or is less than fair value and are included in other assets in our balance sheet. The carrying value of our cost method investments was $21.8 million and $22.2 million at December 31, 2014 and 2013, respectively.

Available-for-Sale Securities. Investments in publicly traded equity securities are classified as available-for-sale securities. These investments are carried at fair value using quoted market prices and are included in other assets in our balance sheet. Unrealized gains and losses are recorded as a component of accumulated other comprehensive income. The carrying value of the available-for-sale securities was $4.9 million at December 31, 2014 and 2013, respectively.

Goodwill and Intangible Assets. Goodwill represents the excess of the acquisition cost over the fair value of the net assets acquired. Goodwill is not amortized, but is periodically reviewed for impairment. Identifiable intangible assets, which consist primarily of customer relationships, including the related customer contracts and trade names, are amortized over their estimated useful lives ranging from five to ten years. We consider a number of factors in determining the useful lives and amortization method, including the pattern in which the economic benefits are consumed, as well as trade name recognition and customer attrition. No residual value is estimated for the identified intangible assets.

We review the carrying value of goodwill for impairment annually at the end of the second quarter of the year and whenever events or circumstances indicate the carrying value may not be recoverable. There is a two-step test for goodwill impairment. In Step 1, we compare the fair value of each reporting unit to its carrying value, including goodwill. If the fair value of the reporting unit is equal to or greater than its carrying value, goodwill is not impaired and no further testing is required. If the carrying value exceeds fair value, then Step 2 of the impairment test is performed in order to determine if the implied fair value of the reporting unit’s goodwill exceeds the carrying value of that goodwill. Goodwill is impaired when the carrying value of a reporting unit's goodwill exceeds the implied fair value of its goodwill. Impaired goodwill is written down to its implied fair value with a charge recorded in results of operations in the period the impairment is identified.

F-10

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

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 monitor the performance and 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 had 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. 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 costs. 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. 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 of EBITDA (earnings before interest, taxes, depreciation and amortization) and (3) when available, consideration of recent and similar acquisition transactions.

Based on the results of the annual impairment test, we concluded that our goodwill at June 30, 2014 and 2013 was not impaired because the fair value of each of our reporting units were substantially in excess of their respective net book value. Subsequent to the annual impairment test of goodwill at June 30, 2014, there were no events or circumstances that triggered the need for an interim impairment test.

Temporary Equity - Redeemable Noncontrolling Interests. Owners of noncontrolling equity interests in some of our subsidiaries have the right in certain circumstances to require us to purchase all or a portion of their equity interests at fair value as defined in the applicable agreements. The intent of the parties is to approximate fair value at the time of redemption by using a multiple of earnings that is consistent with generally accepted valuation practices used by market participants in our industry. These contingent redemption rights are embedded in the equity security at issuance, are not free-standing instruments, do not represent a de facto financing and are not under our control.

Treasury Stock. Repurchases of our common stock are accounted for at cost. Reissued treasury shares, primarily in connection with share-based compensation plans, are accounted for at average cost. Gains or losses on reissued treasury shares are recorded in additional paid-in capital and do not affect results of operations.

Business Combinations. Business combinations are accounted for using the acquisition method and, accordingly, the assets acquired, including identified intangible assets, the liabilities assumed and any noncontrolling interest in the acquired business are recorded at their acquisition date fair values. In circumstances where control is obtained and less than 100% of an entity is acquired, we record 100% of the goodwill acquired. Acquisition-related costs, including advisory, legal, accounting, valuation and other costs are expensed as incurred. Certain of our acquisitions include an initial payment at closing and provide for future additional contingent purchase price payments (earn-outs). Contingent purchase price obligations are recorded as a liability at the acquisition date fair value using the discount rate in affect at the acquisition date. Subsequent changes in the fair value of the liability are recorded in our results of operations. Generally, there is no cap on the amount that can be earned under the contingent purchase price arrangements and payments are not contingent upon future employment. The results of operations of acquired businesses are included in our results of operations from the acquisition date.

Subsidiary and Equity Investment Stock Transactions. Transactions involving the purchase, sale or issuance of stock of a subsidiary where control is maintained are recorded as an increase or decrease in additional paid-in capital. Gains and losses from transactions involving subsidiary stock where control is lost are recorded in results of operations. Gains and losses from transactions involving stock of an equity investment are recorded in results of operations until control is achieved. In circumstances where the purchase of shares of an equity investment results in obtaining control, the existing carrying value of the investment is remeasured to the acquisition date fair value and any gain or loss is recognized in results of operations.

Foreign Currency Translation and Transactions. Substantially all of our foreign subsidiaries use their local currency as their functional currency. Assets and liabilities are translated into U.S. Dollars at the exchange rate on the balance sheet date and revenue and expenses are translated at the average exchange rate for the period. The impact of the translation adjustments is recorded as a component of accumulated other comprehensive income. Net foreign currency transaction gains (losses) recorded in results of operations were $8.7 million, $2.7 million and $(2.7) million in 2014, 2013 and 2012, respectively.

F-11

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Share-Based Compensation. Share-based compensation, arising from restricted stock and stock option awards, is measured at the grant date fair value. The fair value of restricted stock awards is determined and fixed on the grant date using the closing price of our common stock. The fair value of the restricted stock awards is recorded in additional paid-in capital and is amortized to expense over the restriction period. We use the Black-Scholes option valuation model to determine the fair value of stock option awards. For awards that have a service only vesting condition, we recognize share-based compensation expense on a straight-line basis over the requisite service periods. For awards with a performance vesting condition, we recognize share-based compensation expense on a graded-vesting basis. See Note 10 for additional information regarding our specific award plans and estimates and assumptions used to determine the fair value of our share-based compensation awards.

Salary Continuation Agreements. Arrangements with certain present and former employees provide for continuing payments for periods up to ten years after cessation of full-time employment in consideration for agreement by the employees not to compete with us and to render consulting services during the postemployment period. Such payments which are subject to certain limitations, including our operating performance during the postemployment period, represent the fair value of the services rendered and are expensed in such periods.

Severance. The liability for one-time termination benefits, such as severance pay or benefit payouts, is measured and recognized at fair value in the period the liability is incurred. Subsequent changes to the liability are recognized in results of operations in the period of change.

Defined Benefit Pension Plans and Postemployment Arrangements. We record the funded status of our defined benefit plans in our balance sheet. Funded status is the difference between the fair value of plan assets and the benefit obligation at December 31, the measurement date, determined on a plan-by-plan basis. The benefit obligation for the defined benefit plans is the projected benefit obligation (“PBO”), which represents the actuarial present value of benefits expected to be paid upon retirement based on estimated future compensation levels. The fair value of plan assets represents the current market value. Overfunded plans where the fair value of plan assets exceeds the benefit obligation are aggregated and recorded as a prepaid pension asset equal to the excess. Underfunded plans where the benefit obligation exceeds the fair value of plan assets are aggregated and recorded as a liability equal to the excess. The liability for our postemployment arrangements is recorded in our balance sheet. The benefit obligation of our postemployment arrangements is the PBO and these arrangements are not funded. The current portion of the benefit obligation for our defined benefit plans and postemployment arrangements represents the actuarial present value of benefits payable in the next twelve months that exceed the fair value of plan assets. This current obligation is recorded in other current liabilities and the long-term portion is recorded in long-term liabilities in our balance sheet.

Deferred Compensation. Some of our subsidiaries have individual deferred compensation arrangements with certain executives that provide for payments over varying terms upon retirement, cessation of employment or death. The cost of these arrangements is accrued during the employee’s service period.

Income Taxes. We use the asset and liability method of accounting for income taxes. Under this method, income tax expense is recognized for the amount of taxes payable for the current period and deferred taxes recognized during the period. Deferred income taxes are recognized for the temporary difference between the financial reporting basis and tax basis of our assets and liabilities. Deferred income taxes are measured using the enacted tax rates that are assumed to be in effect when the differences reverse. Deferred tax assets result principally from recording expenses in the financial statements which are not currently deductible for tax purposes, such as share-based compensation expense, tax loss and credit carryforwards and differences between the tax basis and book basis of assets and liabilities recorded in connection with acquisitions. Deferred tax liabilities result principally from expenses from financial instruments which are currently deductible for tax purposes but have not been expensed in the financial statements, basis differences arising from deductible goodwill and intangible assets and tax rate differentials on unremitted foreign earnings. Valuation allowances are recorded where it is more likely than not that all or a portion of a deferred tax asset will not be realized. In assessing the need for a valuation allowance, we evaluate factors such as prior earnings history, expected future earnings, carry-back and carry-forward periods and tax strategies that could potentially enhance the likelihood of the realization of a deferred tax asset.

We have provided U.S. income taxes on earnings of foreign subsidiaries and affiliates that have not been indefinitely reinvested. However, we have not provided U.S. federal and state income taxes on cumulative earnings of foreign subsidiaries that have been indefinitely reinvested. Interest and penalties related to tax positions taken in our tax returns are recorded in income tax expense.

F-12

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Net Income Per Common Share. Net income per common share is based on the weighted average number of common shares outstanding during each period. Diluted net income per common share is based on the weighted average number of common shares outstanding, plus, if dilutive, common share equivalents, which include outstanding stock options and restricted stock.

Net income per common share is calculated using the two-class method, which is an earnings allocation method for computing net income per common share when a company's capital structure includes common stock and participating securities. The majority of the unvested restricted stock awards receive non-forfeitable dividends at the same rate as our common stock and therefore are considered participating securities. Under the two-class method, basic and diluted net income per common share is reduced for a presumed hypothetical distribution of earnings to holders of the unvested restricted stock receiving non-forfeitable dividends.

Concentration of 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 we grant credit to qualified clients in the normal course of business. 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 2.6% of revenue in 2014 and no other client accounted for more than 2.5% of revenue.

Derivative Financial Instruments. All derivative instruments, including certain derivative instruments embedded in other contracts, are recorded in our balance sheet at fair value as either an asset or liability. Derivatives qualify for hedge accounting if: (1) the hedging instrument is designated as a hedge at inception, (2) the hedged exposure is specifically identifiable and exposes us to risk and (3) a change in fair value of the derivative financial instrument and an opposite change in the fair value of the hedged exposure will have a high degree of correlation. The method of assessing hedge effectiveness and measuring hedge ineffectiveness is formally documented at hedge inception. Hedge effectiveness is assessed and hedge ineffectiveness is measured at least quarterly throughout the designated hedge period. If the derivative is a hedge, depending on the nature of the hedge, changes in the fair value of the derivative will either be offset against the change in fair value of the hedged asset, liability or firm commitment through earnings or recognized in other comprehensive income until the hedged item is recognized in earnings. The ineffective portion of the change in fair value of a derivative used as hedge is recognized in results of operations. We do not use derivative financial instruments for trading or speculative purposes.

Fair Value. We apply the fair value measurement guidance of FASB ASC Topic 820, Fair Value Measurements and Disclosures, for our financial assets and liabilities that are required to be measured at fair value and for our nonfinancial assets and liabilities that are not required to be measured at fair value on a recurring basis, including goodwill and other identifiable intangible assets. The measurement of fair value requires the use of techniques based on observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our market assumptions. The inputs create the following fair value hierarchy:

• Level 1 - Quoted prices for identical instruments in active markets.

• Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations where inputs are observable or where significant value drivers are observable.

• Level 3 - Instruments where significant value drivers are unobservable to third parties.

When available, we use quoted market prices to determine the fair value of our financial instruments and classify such items in Level 1. In some cases, we use quoted market prices for similar instruments in active markets and model-derived valuations. These items are classified in Level 2.

In determining the fair value of financial instruments, we consider certain market valuation adjustments that market participants would consider in determining fair value, including: counterparty credit risk adjustments applied to financial instruments, taking into account the actual credit risk of the counterparty as observed in the credit default swap market and credit risk adjustments applied to reflect our own credit risk when valuing liabilities measured at fair value. 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.

Reclassifications. Certain reclassifications have been made to the prior year financial information to conform to the current year presentation.

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OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

3. Net Income per Common Share

The computation of basic and diluted net income per common share for the three years ended December 31, 2014 were (in millions, except per share amounts):

	2014			2013			2012
Net Income Available for Common Shares:
Net income - Omnicom Group Inc.	$	1,104.0		$	991.1		$	998.3
Net income allocated to participating securities	(20.4		)	(25.1		)	(22.5		)
	$	1,083.6		$	966.0		$	975.8
Weighted Average Shares:
Basic	253.9			258.9			268.3
Dilutive stock options and restricted shares	1.4			1.5			1.7
Diluted	255.3			260.4			270.0
Anti-dilutive stock options and restricted shares	0.6			0.7			0.3
Net Income per Common Share - Omnicom Group Inc.:
Basic	$	4.27		$	3.73		$	3.64
Diluted	$	4.24		$	3.71		$	3.61

4. Business Combinations

In 2014, we completed 10 acquisitions of new subsidiaries and made additional investments in companies in which we had an existing minority ownership interest. Goodwill increased $222.4 million in 2014. Approximately $35.4 million of the goodwill recorded in connection with the 2014 acquisitions is expected to be deductible for income tax purposes. We also acquired additional equity in certain of our majority owned subsidiaries. These transactions are accounted for as equity transactions and no additional goodwill was recorded. None of the acquisitions, individually or in aggregate, in 2014 was material to our results of operations or financial position.

The valuation of the acquired businesses is based on a number of factors, including specialized know-how, reputation, geographic coverage, competitive position and service offerings, 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 area and/or their service capabilities to better serve our clients. Consistent with our acquisition strategy and past practice, certain of our acquisitions include an initial payment at closing and provide for future additional contingent purchase price payments (earn-outs). Contingent purchase price payments are derived using the performance of the acquired entity and are based on predetermined formulas. The liability for contingent purchase price obligations was $300.7 million and $220.2 million at December 31, 2014 and 2013, respectively, of which $105.5 million and $74.5 million, respectively, is included in other current liabilities in our balance sheet.

For each acquisition, we undertake a detailed review to identify other intangible assets and a valuation is performed for all such identified assets. We use several market participant measurements to determine fair value. This approach includes consideration of similar and recent transactions, as well as utilizing discounted expected cash flow methodologies and when available and as appropriate, we use comparative market multiples to supplement our analysis. As is typical for most service businesses, a substantial portion of the intangible asset value we acquire is the specialized know-how of the workforce, which is treated as part of goodwill and is not valued separately. 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 executing our acquisition strategy, one of the primary drivers in identifying and executing a specific transaction is the existence of, or the ability to, expand our existing client relationships. The expected benefits of our acquisitions are typically shared across multiple agencies and regions.

F-14

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

5. Termination of Business Combination Agreement

On May 8, 2014, the Company and 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.

6. Goodwill and Intangible Assets

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

	2014						2013
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Goodwill	$	9,377.6	$	555.4	$	8,822.2	$	9,502.6	$	586.6	$	8,916.0
Intangible assets:
Purchased and internally developed software	$	298.7	$	221.4	$	77.3	$	283.2	$	217.4	$	65.8
Customer related and other	702.1		390.0		312.1		655.1		334.9		320.2
	$	1,000.8	$	611.4	$	389.4	$	938.3	$	552.3	$	386.0

Changes in goodwill for the years ended December 31, 2014 and 2013 were (in millions):

	2014			2013
January 1	$	8,916.0		$	8,844.2
Acquisitions	222.4			69.9
Dispositions	(3.0		)	(8.5		)
Foreign currency translation	(313.2		)	10.4
December 31	$	8,822.2		$	8,916.0

There were no goodwill impairment losses recorded in 2014 or 2013 and there are no accumulated goodwill impairment losses. Goodwill for acquisitions completed in 2014 and 2013 includes $43.5 million and $12.2 million, respectively, of goodwill attributed to noncontrolling interests in the acquired businesses.

7. Debt

Credit Lines

On July 31, 2014, we amended our $2.5 billion credit line (“Credit Agreement”) to extend the term to July 31, 2019. We have the ability to classify borrowings under the Credit Agreement as long-term. Additionally, we can issue up to $2.0 billion of commercial paper. At December 31, 2014 and 2013, there were no outstanding commercial paper issuances or borrowings under the Credit Agreement. We also have uncommitted credit lines aggregating $937.8 million and $1.1 billion at December 31, 2014 and 2013, respectively.

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

	2014		2013
Credit Agreement	$	2,500.0	$	2,500.0
Uncommitted credit lines	937.8		1,051.5
Available and unused credit lines	$	3,437.8	$	3,551.5

F-15

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The Credit Agreement contains financial covenants that require us to maintain a Leverage Ratio of consolidated indebtedness to consolidated EBITDA to 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 December 31, 2014 we were in compliance with these covenants, as our Leverage Ratio was 2.0 times and our Interest Coverage Ratio was 12.6 times. The Credit Agreement does not limit our ability to declare or pay dividends or repurchase our common stock.

Short-Term Borrowings

Short-term borrowings of $7.2 million and $5.9 million at December 31, 2014 and 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. At December 31, 2014 and 2013, the weighted average interest rate on these borrowings was 6.0% and 5.6%, respectively.

Long-Term Notes Payable

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

	2014			2013
5.9% Senior Notes due 2016	$	1,000.0		$	1,000.0
6.25% Senior Notes due 2019	500.0			500.0
4.45% Senior Notes due 2020	1,000.0			1,000.0
3.625% Senior Notes due 2022	1,250.0			1,250.0
3.65% Senior Notes due 2024	750.0			—
Other notes and loans	0.5			0.5
	4,500.5			3,750.5
Unamortized premium (discount) on Senior Notes, net	11.1			14.7
Adjustment to carrying value for interest rate swaps	51.4			15.9
	4,563.0			3,781.1
Current portion of debt	(0.4		)	(0.4		)
Long-term notes payable	$	4,562.6		$	3,780.7

In October 2014, we issued $750 million principal amount of 3.65% Senior Notes due 2024. The proceeds from the issuance were $747.6 million before deducting underwriting commissions and offering expenses.

Omnicom Capital Inc. (“OCI”), our wholly-owned finance subsidiary, together with us, is a co-obligor of all the Senior Notes. The Senior Notes are a joint and several liability of us and OCI, and we unconditionally guarantee OCI’s obligations with respect to the Senior Notes. OCI provides funding for our operations by incurring debt and lending the proceeds to our operating subsidiaries. OCI’s assets consist of cash and cash equivalents and intercompany loans made to our operating subsidiaries and the related interest receivable. There are no restrictions on the ability of OCI or us to obtain funds from our subsidiaries through dividends, loans or advances. Our Senior Notes are senior unsecured obligations that rank in equal right of payment with all existing and future unsecured senior indebtedness.

On May 1, 2014, we entered into a fixed-to-floating interest rate swap on the $1.25 billion principal amount of the 3.625% Senior Notes due 2022 (“2022 Notes”) and on September 29, 2014, we entered into a fixed-to-floating interest rate swap on the $1 billion principal amount of the 4.45 % Senior Notes due 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 swap agreements, we receive fixed interest rate payments equal to the coupon interest rate on the 2022 Notes and the 2020 Notes and pay a variable interest rate on the total principal amount of the notes, equal to three month LIBOR in arrears, plus a spread of 1.05% on the 2022 Notes and a spread of 2.16% on the 2020 Notes. The swaps qualify and are designated as fair value hedges for accounting purposes. 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

F-16

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

substantially offset changes in the fair value of the 2022 Notes and the 2020 Notes attributed to changes in the benchmark interest rate. The net interest settlement is recorded in interest expense. At December 31, 2014, we recorded a receivable, which is included in other assets, of $42.7 million representing the fair value of the swaps that was substantially offset by the increase in the carrying value of the 2022 Notes and the 2020 Notes reflecting the change in fair value of the notes. Accordingly, any hedge ineffectiveness was not material to our results of operations.

Convertible Debt

At December 31, 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 outstanding 2032 Notes for redemption on July 31, 2014 at a redemption price of 100% of the principal amount of the 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 and 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.

On May 16, 2013, we called the outstanding Convertible Notes due 2033 (“2033 Notes”) and the Convertible Notes due 2038 (“2038 Notes”) for redemption on June 17, 2013 at a redemption price of 100% of the principal amount. Prior to June 13, 2013, the noteholders had the right to convert their notes into shares of our common stock at a conversion rate of 19.4174 shares per $1,000 principal amount. Substantially all noteholders exercised their conversion right and we paid $406.1 million in cash representing the principal amount of the notes that were converted and issued 1,499,792 shares of our common stock to satisfy the conversion premium. On June 17, 2013, we redeemed any 2033 Notes and 2038 Notes that were not converted.

Interest Expense

The components of interest expense for the three years ended December 31, 2014 were (in millions):

	2014		2013		2012
Long-term notes payable	$	155.0	$	174.7	$	156.2
Commercial paper	2.9		1.7		1.3
Fees	6.2		6.5		6.2
Other	13.1		14.3		16.0
	$	177.2	$	197.2	$	179.7

Maturities

The maturities of our long-term notes payable at December 31, 2014 are (in millions):

2015	$	0.4
2016	1,000.1
2017	—
2018	—
2019	500.0
Thereafter	3,000.0
	$	4,500.5

F-17

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

8. Segment Reporting

Our five branded agency networks operate in the advertising, marketing and corporate communications services industry, and are organized into agency networks, virtual client networks, regional reporting units and operating groups. The agency networks' regional reporting units comprise three principal regions; the Americas, EMEA and Asia Pacific. The regional reporting units monitor the performance and are responsible for the agencies in their region. Agencies within the regional reporting units serve similar clients in similar industries and in many cases the same clients and 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 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 region as of and for the three years ended December 31, 2014 were (in millions):

	Americas		EMEA		Asia Pacific
2014
Revenue	$	9,121.3	$	4,594.0	$	1,602.5
Long-lived assets and goodwill	6,157.8		2,800.8		571.6
2013
Revenue	$	8,597.1	$	4,407.4	$	1,580.0
Long-lived assets and goodwill	6,082.6		2,984.6		586.2
2012
Revenue	$	8,375.8	$	4,285.0	$	1,558.6
Long-lived assets and goodwill	6,066.3		2,875.2		626.5

The Americas comprises North America, which includes the United States, Canada and Puerto Rico, and Latin America, which includes Mexico. EMEA comprises the United Kingdom, various Euro currency countries, other European countries that have not adopted the European Union Monetary standard, the Middle East and Africa. Asia Pacific comprises Australia, China, India, Japan, Korea, New Zealand, Singapore and other Asian countries. Revenue in the United States was $8,152.7 million, $7,569.7 million and $7,363.7 million in 2014, 2013 and 2012, respectively.

9. Equity Method Investments

Income (loss) from our equity method investments was $16.2 million, $15.9 million and $(15.0) million in 2014, 2013 and 2012, respectively and our proportionate share in their net assets was $49.0 million and $48.4 million, at December 31, 2014 and 2013, respectively. Our equity method investments are not material to our results of operations or financial position; therefore, summarized financial information is not required to be presented.

In 2013 and 2012, we recorded a net impairment charge of $10.7 million and $29.2 million, respectively, to reduce the carrying value of our equity investment in Egypt to fair value. The civil unrest in Egypt, which began in 2012 and continued into 2013, affected the financial condition and business prospects of our equity investment and we determined that an other-than-temporary impairment had occurred. Accordingly, we recorded an impairment charge in 2013 and 2012 to reflect the reduction in value to our equity investment and record it at fair value at December 31, 2013 and 2012, respectively. The measurement of fair value was based on significant unobservable estimates and assumptions (Level 3 inputs), including expected discounted cash flows. The estimates and assumptions included a weighted average cost of capital of 27% and 22% in 2013 and 2012, respectively, and an expected long-term growth rate of 5% for both years. The impairment charges are included in income (loss) from equity method investments in our income statement. In 2014, the financial condition and business prospects of our equity investment stabilized. Therefore, we determined that there has been no further decline in the fair value of our equity investment below carrying value.

F-18

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

10. Share-Based Compensation Plans

Share-based incentive awards are provided to employees under the 2013 Incentive Award Plan (“2013 Plan”). The 2013 Plan is administered by the Compensation Committee of the Board of Directors (“Compensation Committee”), and awards under the plan include stock options, restricted stock and other stock awards. The maximum number of shares of common stock that can be granted under the 2013 Plan is 33 million shares plus any shares awarded under the 2013 Plan and any prior plan that are forfeited or expired. Stock option awards reduce the number of shares available for grant on a one-for-one basis. All other awards reduce the number of shares available for grant by 3.5 shares for every one share of common stock awarded. The terms of each award and the exercise date are determined by the Compensation Committee. The 2013 Plan does not permit the holder of an award to elect cash settlement under any circumstances. At December 31, 2014, there were 32,671,988 shares available for grant under the 2013 Plan. If all shares available for grant were for awards other than stock options, shares available for grant would be 9,334,854.

Share-based compensation expense was $93.5 million, $86.3 million and $80.8 million in 2014, 2013 and 2012, respectively. At December 31, 2014, unamortized share-based compensation that will be expensed over the next five years is $210.1 million. We record a deferred tax asset for share-based compensation expense recognized for financial reporting that has not been deducted on our income tax return. If the actual tax deduction exceeds the deferred tax asset, the difference is recorded in additional paid-in capital (“APIC Pool”). If the actual tax deduction is less than the deferred tax asset and no APIC Pool exists, the difference is recorded in results of operations. To the extent that future tax deductions for share-based compensation are less than the deferred tax assets resulting from recording book share-based compensation expense, we expect to have a sufficient pool of excess tax benefits within the APIC Pool available to offset any potential future shortfall.

Stock Options

The exercise price of stock option awards may not be less than 100% of the market price of our common stock on the grant date and the option term cannot exceed ten years from the grant date.Typically, stock option awards vest 30% per year in the first two years and are fully vested three years from grant date. Generally, stock option exercises are settled with treasury shares.

Stock option activity for the three years ended December 31, 2014 was:

	2014			2013			2012
	Shares		Weighted Average Exercise Price	Shares		Weighted Average Exercise Price	Shares		Weighted Average Exercise Price
January 1	2,643,680		$26.39	5,590,880		$25.72	18,301,409		$26.22
Granted	60,000		$66.16	60,000		$70.68	60,000		$49.65
Exercised	(1,046,540	)	$26.19	(3,021,200	)	$26.01	(12,673,529	)	$26.47
(Forfeited) reinstated	(5,000	)	$23.40	14,000		$23.40	(97,000	)	$35.98
December 31	1,652,140		$27.97	2,643,680		$26.39	5,590,880		$25.72
Exercisable December 31	1,526,140		$24.95	2,505,680		$24.67	5,333,880		$24.89

Options outstanding and exercisable at December 31, 2014 were:

			Options Outstanding			Options Exercisable
Range of Exercise Prices			Shares	Weighted Average Remaining Contractual Life	Weighted Average Exercise Price	Shares	Weighted Average Exercise Price
$23.40	to	$29.99	1,437,140	4.2 years	$23.40	1,437,140	$23.40
$30.00	to	$44.99	41,000	6.1 years	$41.57	41,000	$41.57
$45.00	to	$59.99	54,000	7.5 years	$49.32	30,000	$49.05
$60.00	to	$70.68	120,000	9.4 years	$68.42	18,000	$70.68
			1,652,140			1,526,140

F-19

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The fair value of each grant was determined on the grant date using the Black-Scholes option valuation model. The Black-Scholes assumptions (without adjusting for the risk of forfeiture and lack of liquidity) and the weighted average fair value per share for options granted were:

	2014	2013	2012
Expected option lives	5 years	5 years	5 years
Risk free interest rate	1.4%	1.4%	0.8%
Expected volatility	22.3%	26.0%	29.5%
Dividend yield	3.0%	2.0%	3.1%
Weighted average fair value per option granted	$10.50	$14.50	$10.42

Restricted Stock

Restricted stock activity for the three years ended December 31, 2014 was:

	2014		2013		2012
January 1	6,090,697		7,241,490		6,038,978
Granted	915,922		706,900		2,515,127
Vested	(1,619,444	)	(1,490,786	)	(981,737	)
Forfeited	(346,534	)	(366,907	)	(330,878	)
December 31	5,040,641		6,090,697		7,241,490
Weighted average grant date fair value of shares granted in the period	$64.92		$60.98		$49.55
Weighted average grant date fair value at December 31	$50.98		$47.47		$45.34

Restricted shares typically vest 20% per year and are fully vested five years from the grant date provided the employee remains employed by us. Restricted shares may not be sold, transferred, pledged or otherwise encumbered until the forfeiture restrictions lapse. Under most circumstances, the employee forfeits the shares if employment ceases prior to the end of the restriction period.

Performance Restricted Stock Units

The Compensation Committee grants certain employees performance restricted stock units (“PRSUs”). Each PRSU represents the right to receive one share of common stock on vesting. The ultimate number of PRSUs received by the employee depends on the Company's average return on equity over a three year period compared to the average return on equity of a peer group of four principal competitors over the same period. The PRSUs granted in 2011 (“2011 PRSUs”) vest over five years and all other PRSUs vest over three years. One half of the 2011 PRSUs have a service only vesting condition and compensation expense is recognized on a straight-line basis over the service period. The other half of the 2011 PRSUs and all other PRSUs have a service and performance vesting condition and compensation expense is recognized on a graded-vesting basis. Over the performance period, the recognition of compensation expense is adjusted upward or downward based on our estimate of the probability of achievement of the performance target for the portion of the awards subject to the performance vesting condition. We assume that substantially all the PRSUs subject to the service and performance condition will vest.

PRSU activity of the three years ended December 31, 2014 was:

	2014				2013				2012
	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
January 1	681,555		$	51.19	538,948		$	48.74	413,909		48.56
Granted	188,621		69.89		183,998		57.77		166,426		$	49.13
Distributed	(165,562	)	48.56		(41,391	)	48.56		(41,387	)	48.56
Forfeited	(81,755	)	61.76		—		—		—		—
December 31	622,859		$	56.16	681,555		$	51.19	538,948		$	48.74

F-20

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The 2011 PRSUs subject to the service only vesting condition are distributed as they vest. The 2011 PRSUs subject to the service and performance condition are distributed, based on the vesting schedule, upon achieving the performance target. All other PRSUs subject to the service and performance conditions are distributed upon achieving the performance target. All shares distributed to date relate to the 2011 PRSUs.

ESPP

We have an employee stock purchase plan (“ESPP”) that enables employees to purchase our common stock through payroll deductions over each plan quarter at 95% of the market price on the last trading day of the plan quarter. Purchases are limited to 10% of eligible compensation as defined by the Employee Retirement Income Security Act of 1974 (“ERISA”). Employees purchased 113,293 shares, 175,002 shares and 189,307 shares in 2014, 2013 and 2012, respectively, all of which were treasury shares, for which $8.0 million, $9.9 million and $8.6 million, respectively, was paid to us. At December 31, 2014, 9,078,083 shares are available for the ESPP.

11. Income Taxes

We file a consolidated U.S. income tax return and tax returns in various state and local jurisdictions. Our subsidiaries file tax returns in various foreign jurisdictions. Our principal foreign jurisdictions include the United Kingdom, France and Germany. The Internal Revenue Service has completed its examination of our federal tax returns through 2010. In addition, our subsidiaries’ tax returns in the United Kingdom, France and Germany have been examined through 2012, 2009 and 2009, respectively.

Income before income taxes for the three years ended December 31, 2014 was (in millions):

	2014		2013		2012
Domestic	$	739.9	$	629.4	$	683.5
International	1,070.1		1,031.5		976.1
	$	1,810.0	$	1,660.9	$	1,659.6

Income tax expense (benefit) for the three years ended December 31, 2014 was (in millions):

	2014			2013			2012
Current:
Federal	$	356.1		$	246.3		$	163.3
State and local	38.1			30.6			40.1
International	344.8			336.5			298.3
	739.0			613.4			501.7
Deferred:
Federal	(106.4		)	0.3			41.7
State and local	(2.3		)	(3.6		)	4.7
International	(37.2		)	(44.9		)	(21.0		)
	(145.9		)	(48.2		)	25.4
	$	593.1		$	565.2		$	527.1

The reconciliation from the statutory U.S. federal income tax rate to our effective tax rate is:

	2014		2013		2012
Statutory U.S. federal income tax rate	35.0	%	35.0	%	35.0	%
State and local income taxes, net of federal income tax benefit	1.3		1.0		1.7
Reduction of tax on unremitted foreign earnings due to     legal reorganization	—		—		(1.3	)
International tax rate differentials	(3.3	)	(3.0	)	(3.3	)
Other	(0.2	)	1.0		(0.3	)
Effective tax rate	32.8	%	34.0	%	31.8	%

F-21

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The effective tax rate for 2014decreased to 32.8% from 34.0% in 2013. Income taxes for 2014 and 2013 reflect the recognition of an income tax benefit of $11.4 million and $6.5 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 from both years, our effective tax rate for 2014 and 2013 was 33.2% and 33.6%, respectively.

Income tax expense in 2012 was reduced by $53 million, primarily resulting from a reduction in the deferred tax liabilities for unremitted foreign earnings of certain of our operating companies located in the Asia Pacific region, as well as lower statutory tax rates in other foreign jurisdictions. In 2012, we completed a legal reorganization in certain countries within the Asia Pacific region. As a result of the reorganization, our unremitted foreign earnings in the affected countries are subject to lower effective tax rates as compared to the U.S. statutory tax rate. Therefore we recorded a reduction in our deferred tax liabilities to reflect the lower tax rate that these earnings are subject to. The reduction in income tax expense was partially offset by a charge of approximately $16 million resulting from U.S. state and local tax accruals recorded for uncertain tax positions, net of U.S. federal income tax benefit.

Income tax expense for 2014, 2013 and 2012 includes $1.7 million, $1.6 million and $2.5 million, respectively, of interest, net of tax benefit, and penalties related to tax positions taken on our tax returns. At December 31, 2014 and 2013, the accrued interest and penalties were $14.2 million and $11.5 million, respectively.

The components of deferred tax assets and liabilities at December 31, 2014 and 2013 were (in millions):

	2014			2013
Deferred tax assets:
Compensation and severance	$	311.9		$	269.8
Tax loss and credit carryforwards	95.6			149.1
Basis differences from acquisitions	38.0			28.7
Basis differences from short-term assets and liabilities	27.8			28.2
Other	33.0			53.2
Deferred tax assets	506.3			529.0
Valuation allowance	(34.1		)	(56.8		)
Net deferred tax assets	$	472.2		$	472.2
Deferred tax liabilities:
Goodwill and intangible assets	$	706.1		$	673.3
Financial instruments	263.1			421.8
Unremitted foreign earnings	51.1			114.5
Basis differences from investments	(4.2		)	(5.7		)
Deferred tax liabilities	$	1,016.1		$	1,203.9
Net deferred tax assets (liabilities)	$	(543.9	)	$	(731.7	)

Our net deferred tax assets and (liabilities) at December 31, 2014 and 2013, were classified as follows (in millions):

	2014			2013
Other current assets - deferred taxes	$	110.8		$	100.9
Long-term deferred tax liabilities	(654.7		)	(832.6		)
	$	(543.9	)	$	(731.7	)

F-22

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The American Recovery and Reinvestment Act of 2009 provided an election where qualifying cancellation of indebtedness income for debt reacquired in 2009 and 2010 was deferred and included in taxable income ratably over the five taxable years beginning in 2014 and ending in 2018. In 2009 and 2010, we reacquired and retired $1.4 billion of our convertible debt resulting in a tax liability of approximately $329 million. In 2014, we paid $66 million and the remaining liability will be paid ratably from 2015 through 2018. Substantially all the deferred tax liability for financial instruments at December 31, 2014 and 2013, relates to the convertible debt.

In connection with the conversion of the 2032 Notes in July 2014 (see Note 7), we paid $66.2 million, representing the excess of the accreted value of the notes for income tax purposes over the conversion value and we reclassified $32.2 million, representing the difference between the issue price of the notes and the conversion value from long-term deferred tax liabilities to additional paid-in capital.

In connection with the conversion of the 2033 Notes and 2038 Notes in May 2013 (see Note 7), in 2014 we paid $52.7 million, representing the excess of the accreted value of the notes for income tax purposes over the conversion value and in 2013 we reclassified $34.5 million, representing the tax effect of the difference between the issue price of the notes and the conversion value from long-term deferred tax liabilities to additional paid-in capital.

We have concluded that it is more likely than not that we will be able to realize our net deferred tax assets in future periods because results of future operations are expected to generate sufficient taxable income. The valuation allowance of $34.1 million and $56.8 million at December 31, 2014 and 2013, respectively, relates to tax loss and credit carryforwards in the United States and international jurisdictions. Our tax loss and credit carryforwards for which there is no valuation allowance are available to us for periods ranging from 2019 to 2035, which is longer than the forecasted utilization of such carryforwards.

We have not provided for U.S. federal income and foreign withholding taxes on approximately $1.8 billion of cumulative undistributed earnings of certain foreign subsidiaries. We intend to indefinitely reinvest these undistributed earnings in our international operations. Accordingly, we currently have no plans to repatriate these funds. As such, we do not know the time or manner in which we would repatriate these funds. Because the time or manner of repatriation is uncertain, we cannot determine the impact of local taxes, withholding taxes and foreign tax credits associated with the future repatriation of such earnings and therefore cannot quantify the tax liability. We have provided $51.1 million of U.S. taxes, which are included in deferred tax liabilities, on cumulative undistributed earnings of certain foreign subsidiaries of approximately $1.8 billion that are not indefinitely reinvested. 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.

A reconciliation of our unrecognized tax benefits at December 31, 2014 and 2013 is (in millions):

	2014			2013
January 1	$	137.8		$	188.6
Additions:
Current year tax positions	6.0			5.1
Prior year tax positions	1.0			0.4
Reduction of prior year tax positions	0.5			(31.4		)
Settlements	(0.8		)	(24.6		)
Lapse of statute of limitations	(2.9		)	(0.2		)
Foreign currency translation	(1.8		)	(0.1		)
December 31	$	139.8		$	137.8

The majority of the liability for uncertain tax positions is included in long-term liabilities in our balance sheet. Approximately $58.6 million and $58.7 million of the liability for uncertain tax positions at December 31, 2014 and 2013, respectively, would affect our effective tax rate upon resolution of the uncertain tax positions.

F-23

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

12. Pension and Other Postemployment Benefits

Defined Contribution Plans

Our domestic and international subsidiaries provide retirement benefits for their employees primarily through defined contribution profit sharing and savings plans. Contributions to these plans vary by subsidiary and have generally been in amounts up to the maximum percentage of total eligible compensation of participating employees that is deductible for income tax purposes. Contribution expense was $108.4 million, $109.3 million and $113.5 million in 2014, 2013 and 2012, respectively.

Defined Benefit Pension Plans

Certain of our subsidiaries sponsor noncontributory defined benefit pension plans. Two of our U.S. businesses and several of our non-U.S. businesses sponsor pension plans. These plans provide benefits to employees based on formulas recognizing length of service and earnings. The U.S. plans cover approximately 1,200 participants, are closed to new participants and do not accrue future benefit credits. The non-U.S. plans, which include plans required by local law, cover approximately 6,500 participants and are not covered by ERISA.

In addition, we have a Senior Executive Restrictive Covenant and Retention Plan (“Retention Plan”) for certain executive officers of Omnicom selected to participate by the Compensation Committee. The Retention Plan is a non-qualified deferred compensation severance plan that was adopted to secure non-competition, non-solicitation, non-disparagement and ongoing consulting services from such executive officers and to strengthen the retention aspect of executive officer compensation. The Retention Plan provides annual payments upon termination following at least seven years of service with Omnicom or its subsidiaries to the participants or to their beneficiaries. A participant’s annual benefit is payable for 15 consecutive calendar years following termination, but in no event prior to age 55. The annual benefit is equal to the lesser of (i) the participant’s final average pay times an applicable percentage, which is based upon the executive’s years of service as an executive officer, not to exceed 35% or (ii) $1.5 million adjusted for cost-of-living, beginning with the second annual payment, not to exceed 2.5% per year. The Retention Plan is unfunded and benefits are paid when due.

The components of net periodic benefit cost for the three years ended December 31, 2014 were (in millions):

	2014			2013			2012
Service cost	$	6.8		$	4.6		$	6.6
Interest cost	8.2			7.3			7.6
Expected return on plan assets	(4.2		)	(3.7		)	(3.5		)
Amortization of prior service cost	4.3			3.6			3.1
Amortization of actuarial (gains) losses	2.3			3.5			1.0
	$	17.4		$	15.3		$	14.8

Included in accumulated other comprehensive income at December 31, 2014 and 2013 were unrecognized actuarial gains and losses and unrecognized prior service cost of $91.0 million, $56.0 million net of tax, and $68.6 million, $42.3 million net of tax, respectively, that have not yet been recognized in net periodic benefit cost. The unrecognized actuarial gains and losses and unrecognized prior service cost included in accumulated other comprehensive income and expected to be recognized in net periodic benefit cost in 2015 is $10.1 million.

The weighted average assumptions used to determine net periodic benefit cost for the three years ended December 31, 2014 were:

	2014		2013		2012
Discount rate	4.5	%	3.9	%	4.6	%
Compensation increases	1.8	%	1.6	%	1.8	%
Expected return on plan assets	5.8	%	5.3	%	6.0	%

F-24

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The expected long-term rate of return for plan assets for the U.S. plans is based on several factors, including current and expected asset allocations, historical and expected returns on various asset classes and current and future market conditions. A total return investment approach using a mix of equities and fixed income investments maximizes the long-term return. This strategy is intended to minimize plan expense by achieving long-term returns in excess of the growth in plan liabilities over time. The discount rate used to compute net periodic benefit cost is based on yields of available high-quality bonds and reflects the expected cash flow as of the measurement date. The expected returns on plan assets and discount rates for the non-U.S. plans are based on local factors, including each plan’s investment approach, local interest rates and plan participant profiles.

Experience gains and losses and the effects of changes in actuarial assumptions are generally amortized over a period no longer than the expected average future service of active employees.

Our funding policy is to contribute amounts sufficient to meet minimum funding requirements in accordance with the applicable employee benefit and tax laws that the plans are subject to, plus such additional amounts as we may determine to be appropriate. We contributed $3.2 million, $5.5 million, $9.1 million to our defined benefit pension plans in 2014, 2013 and 2012, respectively. We do not expect our 2015 contributions to differ materially from our 2014 contributions.

At December 31, 2014 and 2013, the benefit obligation, fair value of plan assets and funded status of our defined benefit pension plans were (in millions):

	2014			2013
Benefit Obligation:
January 1	$	185.7		$	188.4
Service cost	6.8			4.6
Interest cost	8.2			7.3
Amendments, curtailments and settlements	—			7.6
Actuarial (gains) losses	31.3			(18.0		)
Benefits paid	(5.0		)	(5.1		)
Foreign currency translation and other	(4.3		)	0.9
December 31	$	222.7		$	185.7
Fair Value of Plan Assets:
January 1	$	72.2		$	62.7
Actual return on plan assets	6.5			8.1
Employer contributions	3.2			5.5
Benefits paid	(5.0		)	(5.1		)
Foreign currency translation and other	(2.5		)	1.0
December 31	$	74.4		$	72.2
Funded Status December 31:	$	(148.3	)	$	(113.5	)

At December 31, 2014 and 2013, the funded status was classified as follows (in millions):

	2014			2013
Other assets	$	4.6		$	5.6
Other current liabilities	(4.4		)	(1.1		)
Long-term liabilities	(148.5		)	(118.0		)
	$	(148.3	)	$	(113.5	)

F-25

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The accumulated benefit obligation for our defined benefit pension plans at December 31, 2014 and 2013, was $210.0 million and $173.0 million, respectively.

At December 31, 2014 and 2013, plans with benefit obligations in excess of plan assets were (in millions):

	2014		2013
Benefit obligation	$	212.0	$	143.1
Plan assets	59.0		24.0
	$	153.0	$	119.1

The weighted average assumptions used to determine the benefit obligation at December 31, 2014 and 2013, were:

	2014		2013
Discount rate	3.5	%	4.4	%
Compensation increases	1.8	%	1.6	%

At December 31, 2014, the estimated benefits expected to be paid over the next 10 years are (in millions):

2015	$	7.6
2016	8.2
2017	9.0
2018	9.3
2019	10.4
2020 - 2024	72.0

The fair value of plan assets at December 31, 2014 and 2013 was (in millions):

2014	Level 1		Level 2		Level 3		Total
Cash	$	2.6					$	2.6
Mutual funds	43.4						43.4
Unit trusts	24.4						24.4
Insurance contracts					$	3.7	3.7
Other			$	0.3			0.3
	$	70.4	$	0.3	$	3.7	$	74.4

2013
Cash	$	2.1					$	2.1
Mutual funds	42.5						42.5
Unit trusts	23.3						23.3
Insurance contracts					$	3.4	3.4
Other			$	0.9			0.9
	$	67.9	$	0.9	$	3.4	$	72.2

Mutual funds and unit trusts are publicly traded and are valued using quoted market prices. The mutual funds and unit trusts include investments in equity and fixed income securities. Insurance contracts primarily consist of guaranteed investment contracts. Other investments primarily consist of commingled short-term investment funds.

F-26

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Changes in the fair value of plan assets measured using Level 3 inputs at December 31, 2014 and 2013 were (in millions):

	2014		2013
January 1	$	3.4	$	2.9
Actual return on assets	0.1		0.1
Purchases, sales and settlements, net	0.2		0.4
December 31	$	3.7	$	3.4

The weighted average asset allocations at December 31, 2014 and 2013 were:

	2014				2013
	Target Allocation		Actual Allocation		Actual Allocation
Cash	5	%	3	%	3	%
Mutual funds	54	%	58	%	59	%
Unit trusts	33	%	33	%	32	%
Insurance contracts	5	%	5	%	5	%
Other	3	%	1	%	1	%
	100	%	100	%	100	%

Risk tolerance for these plans is established through consideration of plan liabilities, funded status and evaluation of the overall investment environment. The investment portfolios contain a diversified blend of equity and fixed-income investments. Equity investments are diversified across geography and market capitalization through investment in large and medium capitalization U.S. and international equities and U.S. and international debt securities. Investment risk is measured and monitored on an ongoing basis through annual liability measurements, and periodic asset/liability studies and investment portfolio reviews.

Postemployment Arrangements

We have executive retirement agreements under which benefits will be paid to participants or to their beneficiaries over periods up to ten years beginning after cessation of full-time employment. Our postemployment arrangements are unfunded and benefits are paid when due.

The components of net periodic benefit cost for the three years ended December 31, 2014 were (in millions):

	2014		2013		2012
Service cost	$	3.8	$	4.1	$	4.1
Interest cost	4.5		4.3		4.7
Amortization of prior service cost	2.1		1.9		0.7
Amortization of actuarial (gains) losses	0.9		1.5		2.0
	$	11.3	$	11.8	$	11.5

Included in accumulated other comprehensive income at December 31, 2014 and 2013 were unrecognized actuarial gains and losses and unrecognized prior service cost of $60.0 million, $36.0 million net of income taxes, and $44.2 million, $26.5 million net of income taxes, respectively, that have not yet been recognized in the net periodic benefit cost. The unrecognized actuarial gains and losses and unrecognized prior service cost included in accumulated other comprehensive income and expected to be recognized in net periodic benefit cost in 2015 is $4.8 million.

F-27

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The weighted average assumptions used to determine net periodic benefit cost for the three years ended December 31, 2014 were:

	2014		2013		2012
Discount rate	4.7	%	4.1	%	4.9	%
Compensation increases	3.5	%	3.5	%	3.5	%

Experience gains and losses and effects of changes in actuarial assumptions are amortized over a period no longer than the expected average future service of active employees.

At December 31, 2014 and 2013, the benefit obligation was (in millions):

	2014			2013
January 1	$	104.2		$	118.7
Service cost	3.8			4.1
Interest cost	4.5			4.3
Amendments	7.5			2.8
Actuarial (gains) losses	11.3			(12.3		)
Benefits paid	(9.2		)	(13.4		)
December 31	$	122.1		$	104.2

At December 31, 2014 and 2013, the liability was classified as follows (in millions):

	2014		2013
Other current liabilities	$	8.7	$	9.3
Long-term liabilities	113.4		94.9
	$	122.1	$	104.2

The weighted average assumptions used to determine the benefit obligation at December 31, 2014 and 2013 were:

	2014		2013
Discount rate	3.8	%	4.7	%
Compensation increases	3.5	%	3.5	%

At December 31, 2014, the estimated benefits expected to be paid over the next 10 years are (in millions):

2015	$	8.7
2016	9.0
2017	7.6
2018	7.4
2019	5.7
2020 - 2024	26.9

F-28

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

13. Supplemental Cash Flow Data

The change in operating capital for the three years ended December 31, 2014 was (in millions):

	2014			2013			2012
(Increase) decrease in accounts receivable	$	(227.1	)	$	244.8		$	(218.7	)
(Increase) decrease in work in process and other current assets	(24.2		)	(354.5		)	4.8
Increase (decrease) in accounts payable	161.8			143.5			127.8
Increase (decrease) in customer advances and other current liabilities	45.5			252.6			(151.8		)
Change in other assets and liabilities, net	(62.2		)	64.9			263.1
	$	(106.2	)	$	351.3		$	25.2
Income taxes paid	$	610.1		$	472.4		$	321.1
Interest paid	$	188.6		$	192.8		$	165.5

In June 2014, we issued 1,217,112 shares of our common stock to satisfy the conversion premium in connection with the conversion of the 2032 Notes (see Note 7). Based on the closing prices of our common stock on the settlement dates, these issuances resulted in a non-cash pretax financing activity of $89.2 million, excluding the cash tax benefit of $32.2 million.

In May 2013, we issued 1,499,792 shares of our common stock to satisfy the conversion premium in connection with the conversion of the 2033 Notes and the 2038 Notes (see Note 7). Based on the closing prices of our common stock on the settlement dates, these issuances resulted in a non-cash pretax financing activity of $95.4 million, excluding the cash tax benefit of $34.5 million.

14. Noncontrolling Interests

Changes in our ownership interests in our less than 100% owned subsidiaries during the three years ended December 31, 2014 were (in millions):

	2014			2013			2012
Net income attributed to Omnicom Group Inc.	$	1,104.0		$	991.1		$	998.3
Transfers (to) from noncontrolling interests:
Increase in additional paid-in capital from sale of shares in noncontrolling interests	6.3			5.2			2.6
Decrease in additional paid-in capital from purchase of shares in noncontrolling interests	(70.8		)	(22.0		)	(30.7		)
Net transfers (to) from noncontrolling interests	(64.5		)	(16.8		)	(28.1		)
Change from net income attributed to Omnicom Group Inc. and        transfers (to) from noncontrolling interests	$	1,039.5		$	974.3		$	970.2

F-29

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

15. Leases

We lease substantially all our office space under operating leases and certain equipment under operating and capital leases that expire at various dates. Certain office leases contain renewal options. In circumstances where the exercise of the renewal option is reasonably assured at the inception of the lease, the renewal period is included in the determination of the lease term. Office leases may also include scheduled rent increases and concessions, such as rent abatements and landlord incentives and tenant improvement allowances. Scheduled rent increases are recognized on a straight-line basis over the lease term and concessions are recorded as deferred rent and are amortized to rent expense on a straight-line basis over the lease term. Certain office leases require payment of real estate taxes and other occupancy costs. These costs are not included in rent expense. Leasehold improvements made at inception or during the lease term are amortized over the shorter of the asset life or the lease term, which may include renewal periods where the renewal is reasonably assured.

Rent expense for the three years ended December 31, 2014 was (in millions):

	2014			2013			2012
Office base rent	$	373.1		$	379.9		$	390.5
Third party sublease rent	(11.2		)	(10.6		)	(10.4		)
Net office rent	361.9			369.3			380.1
Equipment rent	27.9			33.1			36.3
	$	389.8		$	402.4		$	416.4

Future minimum lease payments under non-cancelable operating leases, reduced by third party sublease rent receivable from existing non-cancelable subleases, and capital leases are (in millions):

	Operating Leases			Capital Leases
2015	$	351.3		$	24.0
2016	247.4			16.1
2017	194.4			9.0
2018	153.5			4.4
2019	133.7			3.1
Thereafter	529.0			2.1
Minimum lease payments	1,609.3			58.7
Sublease rent	(13.9		)
Net rent	$	1,595.4
Interest component				(1.5		)
Present value of minimum lease payments				$	57.2

Property under capital lease and capital lease obligations as of December 31, 2014 and 2013 were (in millions):

	2014			2013
Property under capital lease:
Cost	$	146.3		$	134.0
Accumulated depreciation	(90.6		)	(80.5		)
	$	55.7		$	53.5
Capital lease obligations:
Current	$	23.2		$	22.2
Long-term	34.0			33.2
	$	57.2		$	55.4

Depreciation expense for property under capital lease was $26.1 million, $26.4 million and $25.9 million in 2014, 2013 and 2012, respectively.

F-30

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

16. Temporary Equity - Redeemable Noncontrolling Interests

Owners of noncontrolling equity interests in some of our subsidiaries have the right in certain circumstances to require us to purchase all or a portion of their equity interests at fair value as defined in the applicable agreements. Assuming that the subsidiaries perform over the relevant periods at their current profit levels, at December 31, 2014 the aggregate estimated maximum amount we could be required to pay in future periods is $185.7 million, of which $96.7 million is currently exercisable by the holders. If these rights are exercised, there would be an increase in the net income attributable to Omnicom as a result of our increased ownership interest and the reduction of net income attributable to noncontrolling interests. The ultimate amount paid could be significantly different because the redemption amount is primarily dependent on the future results of operations of the subject businesses, the timing of the exercise of these rights and changes in foreign currency exchange rates.

17. Commitments and Contingent Liabilities

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

18. Fair Value

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

2014	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents	$	2,388.1					$	2,388.1
Short-term investments	2.2						2.2
Available-for-sale securities	4.9						4.9
Interest rate and foreign currency derivative instruments			$	43.1			43.1
Liabilities:
Foreign currency derivative instruments			$	0.4			$	0.4
Contingent purchase price obligations					$	300.7	300.7

2013
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 years ended December 31, 2014 and 2013 were (in millions):

	2014			2013
January 1	$	220.2		$	266.2
Acquisitions	167.1			35.8
Revaluation and interest	11.0			(10.9		)
Payments	(83.2		)	(70.5		)
Foreign currency translation	(14.4		)	(0.4		)
December 31	$	300.7		$	220.2

F-31

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

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

	2014				2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents	$	2,388.1	$	2,388.1	$	2,710.5	$	2,710.5
Short-term investments	2.2		2.2		18.2		18.2
Available-for-sale securities	4.9		4.9		4.9		4.9
Interest rate and foreign currency derivative instruments	43.1		43.1		2.2		2.2
Cost method investments	21.8		21.8		22.2		22.2
Liabilities:
Short-term borrowings	$	7.2	$	7.2	$	5.9	$	5.9
Foreign currency derivative instruments	0.4		0.4		0.1		0.1
Contingent interest derivative	—		—		2.1		2.1
Contingent purchase price obligations	300.7		300.7		220.2		220.2
Debt	4,563.0		4,754.9		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.

19. Derivative Instruments and Hedging Activities

As a global business, we operate in multiple foreign currencies and issue debt in the capital markets. Our regional treasury centers use derivative financial instruments, such as forward foreign exchange contracts, as an economic hedge to better manage the cash flow volatility arising from foreign exchange rate fluctuations. We use derivative financial instruments, such as fixed-to-floating interest rate swaps, to manage the cost of debt more efficiently.

As a result of using derivative financial instruments, we are exposed to the risk that counterparties to the derivative contracts will fail to meet their contractual obligations. To mitigate 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 evaluate the effects of changes in foreign currency exchange rates, interest rates and other relevant market risks on our derivative instruments. We periodically determine the potential loss from market risk on our derivative instruments by performing a value-at-risk ("VaR") analysis. VaR is a statistical model that utilizes historical currency exchange and interest rate data to measure the potential impact on future earnings of our derivative financial instruments assuming normal market conditions. The VaR model is not intended to represent actual losses but is used as a risk estimation and management tool. Based on the results of the model, we estimate with 95% confidence a maximum one-day change in the net fair value of our derivative financial instruments at December 31, 2014 was not significant.

Foreign Exchange Risk

Our regional treasury centers in North America, Europe and Asia centralize and manage our cash. As an integral part of our treasury operations, we use multicurrency pool arrangements to manage the foreign exchange risk between subsidiaries and the treasury centers from which they borrow or invest funds. In certain circumstances, instead of using a multicurrency pool, operations can borrow or invest on an intercompany basis with a treasury center operating in a different currency. To manage the foreign exchange risk associated with these transactions, we use forward foreign exchange contracts. At December 31, 2014 and 2013, we had outstanding forward foreign exchange contracts with an aggregate notional amount of $113.1 million and $207.0 million, respectively, mitigating the foreign exchange risk of the intercompany borrowing and investment activities. Additionally, the treasury centers use forward foreign exchange contracts to mitigate the foreign currency risk associated with activities when revenue and expenses are not denominated in the same currency. In these instances, amounts are promptly

F-32

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

settled or hedged with forward foreign exchange contracts. At December 31, 2014 and 2013, we had outstanding forward foreign exchange contracts with an aggregate notional amount of $44.0 million and $56.2 million, respectively, mitigating the foreign exchange risk related to these activities. See Note 18 for a discussion of the fair value of these instruments. The terms of our forward contracts are generally less than 90 days. We designate foreign currency derivative instruments as an economic hedge; therefore, any gain or loss in fair value incurred on those instruments is generally offset by decreases or increases in the fair value of the underlying exposures. By using these financial instruments, we reduced financial risk of adverse foreign exchange changes by foregoing any gain (reward) which might have occurred if the markets moved favorably.

Interest Rate Risk

Our exposure to interest rate risk has been limited because our Senior Notes are fixed rate debt. In 2014, to manage our annual interest cost more efficiently by benefiting from a decline in interest rates, we used fixed-to-floating interest rate swaps to convert specific fixed rate debt into variable rate debt. In 2014, we entered into fixed-to-floating interest rate swaps on the $1.25 billion principal amount of the 2022 Notes and the $1 billion principal amount of the 2020 Notes. Under the swap agreements, we receive fixed interest rate payments equal to the coupon interest rate on the 2022 Notes and the 2020 Notes and we pay a variable interest rate on the total principal amount of the notes, equal to three month LIBOR in arrears, plus a spread of 1.05% on the 2022 Notes and a spread of 2.16% on the 2020 Notes. The swaps have the economic effect of converting the 2022 Notes and the 2020 Notes from fixed rate debt to floating rate debt and effectively convert our long-term debt portfolio to 50% fixed rate debt and 50% floating rate debt.

20. 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”), which replaces all existing revenue recognition guidance under U.S. GAAP. 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 adopted ASU 2014-15 effective December 31, 2014 and the adoption did not have an impact on the presentation of our results of operations, financial position or disclosures.

F-33

OMNICOM GROUP INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

21. Changes in Accumulated Other Comprehensive Income (Loss)

The changes in accumulated other comprehensive income (loss) for the years ended December 31, 2014 and 2013 were (in millions):

2014	Unrealized Gain (Loss) on Available-for-Sale Securities			Defined Benefit Pension and Postemployment Plans			Foreign Currency Translation			Total
January 1	$	(1.6	)	$	(68.8	)	$	(121.2	)	$	(191.6	)
Other comprehensive income (loss) before reclassifications	0.4			—			(403.7		)	(403.3		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			(23.3		)	—			(23.3		)
Other comprehensive income (loss)	0.4			(23.3		)	(403.7		)	(426.6		)
December 31	$	(1.2	)	$	(92.1	)	$	(524.9	)	$	(618.2	)

2013
January 1	$	(2.0	)	$	(89.8	)	$	(37.7	)	$	(129.5	)
Other comprehensive income (loss) before reclassifications	0.4			—			(83.5		)	(83.1		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			21.0			—			21.0
Other comprehensive income (loss)	0.4			21.0			(83.5		)	(62.1		)
December 31	$	(1.6	)	$	(68.8	)	$	(121.2	)	$	(191.6	)

Reclassifications from accumulated other comprehensive income (loss) for the year ended December 31, 2014 and 2013 were (in millions):

	2014			2013
Amortization of defined benefit pension and postemployment plans:
Prior service cost	$	6.4		$	5.5
Actuarial (gains) losses	3.2			5.0
Net periodic benefit cost (see Note 12)	9.6			10.5
Income taxes	(3.8		)	(4.2		)
Periodic benefit cost, net of income tax	$	5.8		$	6.3

22. 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 our financial statements.

F-34

OMNICOM GROUP INC. AND SUBSIDIARIES

Selected Quarterly Financial Data (Unaudited)

(In millions, except per share amounts)

The Company’s unaudited selected quarterly financial data for the years ended December 31, 2014 and 2013 were:

	Quarter
	First		Second		Third		Fourth
Revenue
2014	$	3,502.2	$	3,870.9	$	3,749.6	$	4,195.1
2013	3,398.9		3,637.0		3,490.5		4,058.1
Operating Expenses
2014	3,119.5		3,322.5		3,316.0		3,615.7
2013	3,027.2		3,114.0		3,111.1		3,506.9
Operating Income
2014	382.7		548.4		433.6		579.4
2013	371.7		523.0		379.4		551.2
Net Income - Omnicom Group Inc.
2014	205.5		325.2		243.8		329.5
2013	205.1		289.5		196.0		300.5
Net Income Per Share Omnicom Group Inc. - Basic
2014	0.78		1.24		0.95		1.30
2013	0.76		1.09		0.74		1.14
Net Income Per Share Omnicom Group Inc. - Diluted
2014	0.77		1.23		0.95		1.30
2013	0.76		1.09		0.74		1.13

In the first and second quarters of 2014 and the third and fourth quarters of 2013, we incurred expenses in connection with the proposed merger with Publicis of $7.0 million and $1.8 million and $28.1 million and $13.3 million, respectively, which are primarily comprised of professional fees. On May 8, 2014, the proposed merger was terminated. Excluding the effect of the merger expenses, Operating Income, Net Income - Omnicom Group Inc. and Diluted Net Income per Common Share - Omnicom Group Inc. for the first and second quarters of 2014 were $389.7 million and $550.2 million, $212.3 million and $315.8 million, and $0.80 and $1.20, respectively. Excluding the effect of the merger expenses, Operating Income, Net Income - Omnicom Group Inc. and Diluted Net Income per Common Share - Omnicom Group Inc. for the third and fourth quarters of 2013 were $407.5 million and $564.5 million, $217.7 million and $313.8 million and $0.82 and $1.18, respectively.

F-35

OMNICOM GROUP INC. AND SUBSIDIARIES

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

For the Three Years Ended December 31, 2014

(In millions)

Description	Balance Beginning of Period		Charged to Costs and Expenses		Removal of Uncollectible Receivables			Translation Adjustment Increase (Decrease)			Balance End of Period
Valuation accounts deducted from assets:
Allowance for Doubtful Accounts:
December 31, 2014	$	32.6	$	8.5	$	(14.9	)	$	(1.3	)	$	24.9
December 31, 2013	35.9		9.7		(12.8		)	(0.2		)	32.6
December 31, 2012	40.6		11.4		(16.5		)	0.4			35.9

S-1

EX-10.23

EXHIBIT 10.23

SEPARATION AGREEMENT AND GENERAL RELEASE

This confirms the following understandings and agreements between Omnicom Management Inc. (the “Company”) and Randall J. Weisenburger (hereinafter referred to as “you” or “your”).

1.    (a)    You acknowledge that you tendered your resignation as Executive Vice President and Chief Financial Officer of Omnicom Group Inc. (“Omnicom”) on September 22, 2014 (see attached copy of your resignation letter) (the “Resignation Date”). The effective date of your termination from employment with the Company shall be December 31, 2014 (the “Termination Date”).

(b)    You agree that you have resigned from all offices and directorships, if any, held with the Company or any of its affiliates, effective as of the Termination Date. In addition, at the Company’s request, you agree that you shall execute such documents as the Company determines are necessary or desirable to effectuate such resignations.

(c)    You shall continue to be paid a salary through the Termination Date; provided, however, effective November 16, 2014, your base salary shall be reduced to $4,000 per full calendar month. You shall no longer be entitled to accrue vacation days under the Company’s vacation policy and you shall not be entitled to receive payment for any accrued but unused vacation days.

(d)    Except as otherwise specifically set forth in this Separation Agreement and General Release (hereinafter also referred to as the “Agreement”), after the Termination Date you shall no longer be entitled to any further compensation or any monies from the Company or any of its affiliates or to receive any of the benefits made available to you during your employment at the Company. You specifically acknowledge that you will not be eligible for and shall not receive a bonus with respect to calendar year 2014.

2.    (a)    You acknowledge that the consideration paid to you by the Company pursuant to this Agreement is sufficient consideration for entering into this Agreement.

(b)    Your health coverage under the Omnicom group health plan will terminate on December 31, 2014. Thereafter, you will be provided an opportunity to continue health coverage for yourself and qualifying dependents under the Company’s group health plan in accordance with the Consolidated Omnibus Budget Reconciliation Act (“COBRA”). You are eligible to participate in the Omnicom Executive Retiree Health plan subject to the terms, conditions and limitations of such plan.

3.    (a)    As used in this Agreement, the term “claims” shall include all claims, covenants, warranties, promises, undertakings, actions, suits, causes of action, obligations, debts, attorneys' fees, accounts, judgments, losses and liabilities, of whatsoever kind or nature, in law, equity or otherwise.

(b)    For and in consideration of the Company’s agreements described in paragraphs 1 and 2 above, and other good and valuable consideration, you, for and on behalf of yourself and your heirs, administrators, executors, and assigns, effective the Effective Date (as defined in Section 12 below), do fully and forever release, remise and discharge the Company, its direct and indirect parents, subsidiaries and affiliates, together with their respective officers, directors, partners, shareholders, employees and agents (collectively, the “Group”) from any and all claims which you had, may have had, or now have against the Company and the Group, for or by reason of any matter, cause or thing whatsoever, including any claim arising out of or attributable to your employment, your resignation or the termination of your employment with the Company, including but not limited to claims of breach of contract, wrongful termination, unjust dismissal, defamation, libel or slander, or under any federal, state or local law dealing with discrimination based on age, race, sex, national origin, handicap, religion, disability, sexual preference or any other protected characteristic. This release of claims includes, but is not limited to, all claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act, the Americans with Disabilities Act, the Civil Rights Act of 1991, the Family and Medical Leave Act, the Equal Pay Act, the Lilly Ledbetter Fair Pay Act, the Sarbanes-Oxley Act, the New York State Human Rights Law, the New York City Administrative Code, and all other federal, state and local labor and anti-discrimination laws, the common law and any other purported restriction on an employer’s right to terminate the employment of employees.

(c)    You specifically release all claims under the Age Discrimination in Employment Act (the “ADEA”) relating to your employment and its termination.

(d)    You represent that you have not filed or permitted to be filed against the Group, individually or collectively, any lawsuits and you covenant and agree that you will not do so at any time hereafter with respect to the subject matter of this Agreement and claims released pursuant to this Agreement (including, without limitation, any claims relating to your resignation and the termination of your employment), except as may be necessary to enforce this Agreement, to obtain benefits described in or granted under this Agreement, or to seek a determination of the validity of the waiver of your rights under the ADEA. Nothing in this Agreement shall be construed to prohibit you from filing a charge with or participating in any investigation or proceeding conducted by the Equal Employment Opportunity Commission (“EEOC”) or a comparable state or local agency. Notwithstanding the foregoing, you hereby waive your right to recover monetary damages in any charge, complaint, or lawsuit filed by you or by anyone else on your behalf. Except as otherwise provided in this paragraph, you will not voluntarily participate in any judicial proceeding of any nature or description against any member of the Group that in any way involves any allegations and facts that you could have raised against any member of the Group as of the date hereof.

4.    You are specifically agreeing to the terms of this release because the Company has agreed to provide you benefits to which you were not otherwise entitled, and has provided such other good and valuable consideration as specified herein. The Company has agreed to provide these benefits because of your agreement to accept them in full settlement of all possible claims you might have or ever had, and because of your execution of this Agreement.

5.    Notwithstanding any other provision of this Agreement, you will retain any rights that you have to vested benefits under the Omnicom Group Retirement Savings Plan and the Omnicom Restricted Stock and Restricted Stock Unit Deferred Compensation Plan.

6.    Upon your Termination Date, or at any other date requested by the Company, you agree to return to the Company all Company property, including without limitation, mailing lists, reports, files, memoranda, records, computer hardware, software, credit cards, door and file keys, computer access codes or disks and instructional manuals, and other physical or personal property which you received or prepared or helped prepare in connection with your employment with the Company, and that you will not retain any copies, duplicates, reproductions or excerpts thereof. Notwithstanding the above, the Company agrees to allow you to keep the smartphones and tablets provided to you (e.g., iPhone 5s; iPad; and Microsoft Surface Pro Tablet (the “Devices”); provided, that, a Company representative will arrange a mutually agreeable time and place to re-set the Devices to the factory settings and delete all information on the Devices prior to the service on each device being discontinued. If you would like to port your cell phone number(s), please let Robert Cohen know no later than December 1^st.

7.    (a)    Nothing in this Agreement affects your rights and obligations under the Omnicom Group Inc. Senior Executive Restrictive Covenant and Retention Plan, as amended (the “Retention Plan”), and the related Senior Executive Restrictive Covenant and Retention Plan Award Agreement (the “Retention Agreement”), which Retention Plan and Retention Agreement remain in full force and effect. For purposes of clarification, your first payment pursuant to the Retention Agreement shall be made on or about July 1, 2015.

(b)    Nothing in this Agreement affects your rights and obligations under any Omnicom Group Inc. Incentive Award Plan Performance Restricted Stock Unit Agreement pursuant to which you were granted Performance Restricted Stock Units by Omnicom (the “PRSU Agreements”). For the avoidance of doubt, you and the Company agree that your outstanding performance restricted stock units (the “PRSUs”) previously granted to you by Omnicom pursuant to the Amended and Restated 2007 Incentive Award Plan and the 2014 Incentive Award Plan shall be treated as follows:

    (i)    On the Termination Date, you shall immediately forfeit the remaining 19,644 PRSUs under the Performance Restricted Stock Unit Agreement with a grant date of April 8, 2011.

(ii)    With respect to the PRSUs granted under the Performance Restricted Stock Unit Agreement with a grant date of April 4, 2012, the number of the PRSUs granted under such agreement that ultimately vest will be determined by the terms thereof, including the performance provisions.

(iii)    On the Termination Date, you shall immediately forfeit 20,754 PRSUs under the Performance Restricted Stock Unit Agreement with a grant date of March 6, 2013, and the number of the remaining PRSUs granted under such agreement that ultimately vest will be determined by the terms thereof, including the performance provisions.

(iv)    On the Termination Date, you shall immediately forfeit 41,357 PRSUs under the Performance Restricted Stock Unit Agreement with a grant date of April 8, 2014, and the number of the remaining PRSUs granted under such agreement that ultimately vest will be determined by the terms thereof, including the performance provisions.

(c)    Nothing in this Agreement affects your rights to indemnification under the Indemnification Agreement made as of July 26, 2007 between you and Omnicom, the Company’s Bylaws or pursuant to the applicable provisions of the Business Corporation Law of the State of New York.

8.    You agree that you will not encourage or cooperate or otherwise participate or confer with any current or former employee of the Company or any member of the Group, individually or collectively, or any potential plaintiff, to commence any legal action or make any claim against the Company or any member of the Group with respect to such person’s employment with the Company or its affiliates; provided, however, that nothing in this Agreement shall prohibit you from cooperating with a current or former employee who has filed a charge of discrimination with the EEOC. You will cooperate with the Company and its counsel in connection with any investigation, administrative proceeding or litigation relating to any matter in which you were involved or of which you have knowledge as a result of your employment with the Company.

9.    Until such date as this Agreement is publicly filed, you agree to maintain the confidentiality of this Agreement, and to refrain from disclosing or making reference to the terms hereof except as required by law or with your accountant or attorney, or members of your immediate family.

10.    You agree that you shall not make, or cause to be made, any statement or communicate any information (whether oral or written) that disparages or reflects negatively on the Company or any member of the Group.

11.    The Company shall be entitled to have the provisions of paragraphs 6, 9 and 10 specifically enforced through injunctive relief, without having to prove the adequacy of the available remedies at law, and without being required to post bond or security, it being acknowledged and agreed that such breach will cause irreparable injury to the Company and that money damages will not provide an adequate remedy to the Company. Moreover, you understand and agree that if you breach any provisions of this Agreement or any other agreement between you and any member of the Group, including but not limited to commencing, joining in or in any other manner attempting to assert any claim released herein, in addition to any other legal or equitable remedy the Company may have, you shall reimburse the Company for all its reasonable attorneys’ fees and costs incurred by it arising out of any such breach. The remedies set forth in this paragraph 11 shall not apply to any challenge to the validity of the waiver and release of your rights under the ADEA. In the event you challenge the validity of the waiver and release of your rights under the ADEA, then the Company’s right to attorneys’ fees and costs shall be governed by the provisions of the ADEA, so that the Company may recover such fees and costs if the lawsuit is brought by you in bad faith. Any such action permitted to the Company by this paragraph, however, shall not affect or impair any of your obligations under this Agreement, including without limitation, the release of claims in paragraph 3 hereof. You further agree that nothing herein shall preclude the Company from recovering attorneys’ fees, costs or any other remedies specifically authorized under applicable law.

12.    You acknowledge that you have read this Agreement in its entirety, fully understand its meaning and are executing this Agreement voluntarily and of your own free will with full knowledge of its significance. You acknowledge and warrant that you have had the opportunity to consider for twenty-one (21) days the terms and provisions of this Agreement and that you have been advised by the Company to consult with an attorney prior to executing this Agreement. Such consideration period shall not be extended by any changes that the parties agree to make to this Agreement, whether material or immaterial. You shall have the right to revoke this Agreement for a period of seven (7) days following your execution of this Agreement, by giving written notice of such revocation to the Company. This Agreement shall not become effective until the eighth day following your execution of it (the “Effective Date”).

13.    In the event that any one or more of the provisions of this Agreement is held to be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions will not in any way be affected or impaired thereby. Moreover, if any one or more of the provisions contained in this Agreement is held to be excessively broad as to duration, scope, activity or subject, such provisions will be construed by limiting and reducing them so as to be enforceable to the maximum extent compatible with applicable law.

14.    Nothing herein shall be deemed to constitute an admission of wrongdoing by the Company or any member of the Group. Neither this Agreement nor any of its terms shall be used as an admission or introduced as evidence as to any issue of law or fact in any proceeding, suit or action, other than an action to enforce this Agreement.

15.    This Agreement may be executed in two counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.

16.    The terms of this Agreement and all rights and obligations of the parties thereto, including its enforcement, shall be interpreted and governed by the laws of the State of New York without giving effect to the conflicts of laws principles thereof. The parties acknowledge that exclusive jurisdiction for any dispute shall be in the state and federal courts located in New York, NY.

17.    All payments made to you under this Agreement will be subject to applicable withholding taxes.

18.    The terms contained in this Agreement constitute the entire agreement between the parties with respect to the subject matter hereof and supersede all prior negotiations, representations or agreements relating thereto whether written or oral with the exception of the Retention Agreement and the PRSU Agreements, all of which agreements shall remain in full force and effect, and are hereby confirmed and ratified. You represent that in executing this Agreement, you have not relied upon any representation or statement not set forth herein. No amendment or modification of this Agreement shall be valid or binding upon the parties unless in writing and signed by both parties.

IN WITNESS WHEREOF, each of the parties has executed this Agreement, in the case of the Company by its duly authorized officer, as of the day and year set forth below.

Omnicom Management Inc.
By:	/s/ MICHAEL J. O'BRIEN
Title:	General Counsel and Secretary
Date:	November 19, 2014

Randall J. Weisenburger

/s/ RANDALL J. WEISENBURGER

.

EX-12

EXHIBIT 12

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

(In millions, except ratios)

	For the Years Ended December 31,
	2014		2013		2012		2011		2010
Earnings:
Income before income taxes	$	1,810.0	$	1,660.9	$	1,659.6	$	1,549.0	$	1,350.4
Add: Dividends from equity method investments	12.6		17.2		13.4		19.4		26.3
Fixed charges	307.1		331.3		318.3		294.9		269.0
Total earnings	$	2,129.7	$	2,009.4	$	1,991.3	$	1,863.3	$	1,645.7
Fixed charges:
Interest expense (a)	$	177.2	$	197.2	$	179.7	$	158.1	$	134.7
Rent expense interest factor (b)	129.9		134.1		138.6		136.8		134.3
Total fixed charges	$	307.1	$	331.3	$	318.3	$	294.9	$	269.0
Ratio of earnings to fixed charges	6.93x		6.07x		6.26x		6.32x		6.12x

__________

(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-21

EXHIBIT 21

SUBSIDIARIES OF REGISTRANT

Significant Subsidiaries

Company	Jurisdiction of Incorporation	Percentage of Voting Securities Owned by Registrant	Number of US subsidiaries	Number of Non-US subsidiaries
Omnicom APIMA Holdings Limited	Hong Kong	100%		80
Omnicom Capital Inc	Connecticut	100%		1
Omnicom Europe Limited	United Kingdom	100%	8	571
Omnicom Group (Asia Pacific) Pte. Ltd.	Singapore	100%		6
BBDO Worldwide Inc.	New York	100%	22	73
DDB Worldwide Communications Group Inc.	New York	100%	16	42
TBWA Worldwide Inc	New York	100%	6	17
DAS Holdings Inc.	Delaware	100%	39	10
Omnicom Media Group Holdings Inc	Delaware	100%	36	4

EX-23

EXHIBIT 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors of

Omnicom Group Inc.:

We consent to the incorporation by reference in the registration statements (Registration Statement Nos. 333-84498, 333-33972, 333-37634, 333-41717, 333-70091, 333-74591, 333-74727, 333-74879, 333-84349, 333-90931, 333-108063, 333-115892, 333-146821, 333-159600, 333-168547, 333-188732) on Form S-8 and (Registration Statement Nos. 333-179573, 333-184510) on Form S-3 of Omnicom Group Inc. and subsidiaries of our reports dated February 10, 2015, with respect to the consolidated balance sheets of Omnicom Group Inc. and subsidiaries as of December 31, 2014 and 2013, and the related consolidated statements of income, comprehensive income, equity and cash flows for each of the years in the three-year period ended December 31, 2014, and the related financial statement schedule on page S-1, and the effectiveness of internal control over financial reporting as of December 31, 2014, which reports appear in the December 31, 2014 Annual Report on

Form 10-K of Omnicom Group Inc. and subsidiaries.

/s/ KPMG LLP

New York, New York

February 10, 2015

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, John D. Wren, certify that:

1. I have reviewed this Annual Report on Form 10-K for the year ended December 31, 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:	February 10, 2015	/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 Annual Report on Form 10-K for the year ended December 31, 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:	February 10, 2015	/s/ PHILIP J. ANGELASTRO
		PhilipJ. 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 Annual Report on Form 10-K for the year ended December 31, 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 aspects, the financial condition and results of operations of Omnicom Group Inc. as of the dates and for the periods expressed in the Report.

Date:	February 10, 2015
			/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.

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Debt (Tables)

12 Months Ended

Dec. 31, 2014

Available and Unused Lines of Credit

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

	2014		2013
Credit Agreement	$	2,500.0	$	2,500.0
Uncommitted credit lines	937.8		1,051.5
Available and unused credit lines	$	3,437.8	$	3,551.5

Components of Interest Expense

The components of interest expense for the three years ended December 31, 2014 were (in millions):

	2014		2013		2012
Long-term notes payable	$	155.0	$	174.7	$	156.2
Commercial paper	2.9		1.7		1.3
Fees	6.2		6.5		6.2
Other	13.1		14.3		16.0
	$	177.2	$	197.2	$	179.7

Stated Maturities of Long-Term Notes Payable and Convertible Debt

The maturities of our long-term notes payable at December 31, 2014 are (in millions):

2015	$	0.4
2016	1,000.1
2017	—
2018	—
2019	500.0
Thereafter	3,000.0
	$	4,500.5

Long-Term Notes Payable [Member]

Long-Term Debt

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

	2014			2013
5.9% Senior Notes due 2016	$	1,000.0		$	1,000.0
6.25% Senior Notes due 2019	500.0			500.0
4.45% Senior Notes due 2020	1,000.0			1,000.0
3.625% Senior Notes due 2022	1,250.0			1,250.0
3.65% Senior Notes due 2024	750.0			—
Other notes and loans	0.5			0.5
	4,500.5			3,750.5
Unamortized premium (discount) on Senior Notes, net	11.1			14.7
Adjustment to carrying value for interest rate swaps	51.4			15.9
	4,563.0			3,781.1
Current portion of debt	(0.4		)	(0.4		)
Long-term notes payable	$	4,562.6		$	3,780.7

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Termination of Business Combination Agreement (Details)	12 Months Ended
	Dec. 31, 2014
Date of Termination of Business Combination Agreement	May 08, 2014
Date of Business Combination Agreement	Jul. 27, 2013

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

12 Months Ended

Dec. 31, 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 years ended December 31, 2014 and 2013 were (in millions):

2014	Unrealized Gain (Loss) on Available-for-Sale Securities			Defined Benefit Pension and Postemployment Plans			Foreign Currency Translation			Total
January 1	$	(1.6	)	$	(68.8	)	$	(121.2	)	$	(191.6	)
Other comprehensive income (loss) before reclassifications	0.4			—			(403.7		)	(403.3		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			(23.3		)	—			(23.3		)
Other comprehensive income (loss)	0.4			(23.3		)	(403.7		)	(426.6		)
December 31	$	(1.2	)	$	(92.1	)	$	(524.9	)	$	(618.2	)

2013
January 1	$	(2.0	)	$	(89.8	)	$	(37.7	)	$	(129.5	)
Other comprehensive income (loss) before reclassifications	0.4			—			(83.5		)	(83.1		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			21.0			—			21.0
Other comprehensive income (loss)	0.4			21.0			(83.5		)	(62.1		)
December 31	$	(1.6	)	$	(68.8	)	$	(121.2	)	$	(191.6	)

Reclassifications from accumulated other comprehensive income (loss)

Reclassifications from accumulated other comprehensive income (loss) for the year ended December 31, 2014 and 2013 were (in millions):

	2014			2013
Amortization of defined benefit pension and postemployment plans:
Prior service cost	$	6.4		$	5.5
Actuarial (gains) losses	3.2			5.0
Net periodic benefit cost (see Note 12)	9.6			10.5
Income taxes	(3.8		)	(4.2		)
Periodic benefit cost, net of income tax	$	5.8		$	6.3

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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) (Allowance for Doubtful Accounts [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for Doubtful Accounts [Member]
Valuation accounts deducted from assets:
Balance Beginning of Period	$ 32.6	$ 35.9	$ 40.6
Charged to Costs and Expenses	8.5	9.7	11.4
Removal of Uncollectible Receivables	(14.9)	(12.8)	(16.5)
Translation Adjustment Increase (Decrease)	(1.3)	(0.2)	0.4
Balance End of Period	$ 24.9	$ 32.6	$ 35.9

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Goodwill and Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Goodwill, Gross Carrying Value	$ 9,377.6	$ 9,502.6
Goodwill, Accumulated Amortization	555.4	586.6
Goodwill, Net Carrying Value	8,822.2	8,916.0
Intangible assets:, Gross Carrying Value	1,000.8	938.3
Intangible assets:, Accumulated Amortization	611.4	552.3
Intangible assets:, Net Carrying Value	389.4	386.0
Goodwill [Roll Forward]
Goodwill, January 1	8,916.0	8,844.2
Goodwill, Acquisitions	222.4	69.9
Goodwill, Dispositions	(3.0)	(8.5)
Goodwill, Foreign currency translation	(313.2)	10.4
Goodwill, December 31	8,822.2	8,916.0
Goodwill, impairment losses	0
Goodwill, accumulated impairment losses	0
Goodwill, acquisitions of noncontrolling interests	43.5	12.2
Purchased and internally developed software
Intangible assets:, Gross Carrying Value	298.7	283.2
Intangible assets:, Accumulated Amortization	221.4	217.4
Intangible assets:, Net Carrying Value	77.3	65.8
Customer related and other
Intangible assets:, Gross Carrying Value	702.1	655.1
Intangible assets:, Accumulated Amortization	390.0	334.9
Intangible assets:, Net Carrying Value	$ 312.1	$ 320.2

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Leases (Tables)

12 Months Ended

Dec. 31, 2014

Leases [Abstract]

Rent Expense

Rent expense for the three years ended December 31, 2014 was (in millions):

	2014			2013			2012
Office base rent	$	373.1		$	379.9		$	390.5
Third party sublease rent	(11.2		)	(10.6		)	(10.4		)
Net office rent	361.9			369.3			380.1
Equipment rent	27.9			33.1			36.3
	$	389.8		$	402.4		$	416.4

Future Minimum Lease Payments Under Non-Cancelable Operating and Capital Leases

Future minimum lease payments under non-cancelable operating leases, reduced by third party sublease rent receivable from existing non-cancelable subleases, and capital leases are (in millions):

	Operating Leases			Capital Leases
2015	$	351.3		$	24.0
2016	247.4			16.1
2017	194.4			9.0
2018	153.5			4.4
2019	133.7			3.1
Thereafter	529.0			2.1
Minimum lease payments	1,609.3			58.7
Sublease rent	(13.9		)
Net rent	$	1,595.4
Interest component				(1.5		)
Present value of minimum lease payments				$	57.2

Property Under Capital Lease and Capital Lease Obligations

Property under capital lease and capital lease obligations as of December 31, 2014 and 2013 were (in millions):

	2014			2013
Property under capital lease:
Cost	$	146.3		$	134.0
Accumulated depreciation	(90.6		)	(80.5		)
	$	55.7		$	53.5
Capital lease obligations:
Current	$	23.2		$	22.2
Long-term	34.0			33.2
	$	57.2		$	55.4

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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Dec. 31, 2014

Schedule II [Abstract]

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

For the Three Years Ended December 31, 2014

(In millions)

Description	Balance Beginning of Period		Charged to Costs and Expenses		Removal of Uncollectible Receivables			Translation Adjustment Increase (Decrease)			Balance End of Period
Valuation accounts deducted from assets:
Allowance for Doubtful Accounts:
December 31, 2014	$	32.6	$	8.5	$	(14.9	)	$	(1.3	)	$	24.9
December 31, 2013	35.9		9.7		(12.8		)	(0.2		)	32.6
December 31, 2012	40.6		11.4		(16.5		)	0.4			35.9

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Segment Reporting (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue	$ 4,195.1	$ 3,749.6	$ 3,870.9	$ 3,502.2	$ 4,058.1	$ 3,490.5	$ 3,637.0	$ 3,398.9	$ 15,317.8	$ 14,584.5	$ 14,219.4
Americas
Revenue									9,121.3	8,597.1	8,375.8
Long-lived assets and goodwill	6,157.8				6,082.6				6,157.8	6,082.6	6,066.3
United States
Revenue									8,152.7	7,569.7	7,363.7
EMEA
Revenue									4,594.0	4,407.4	4,285.0
Long-lived assets and goodwill	2,800.8				2,984.6				2,800.8	2,984.6	2,875.2
Asia Pacific
Revenue									1,602.5	1,580.0	1,558.6
Long-lived assets and goodwill	$ 571.6				$ 586.2				$ 571.6	$ 586.2	$ 626.5

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Temporary Equity - Redeemable Noncontrolling Interests

12 Months Ended

Dec. 31, 2014

Temporary Equity - Redeemable Noncontrolling Interests [Abstract]

Temporary Equity - Redeemable Noncontrolling Interests

Temporary Equity - Redeemable Noncontrolling Interests

Owners of noncontrolling equity interests in some of our subsidiaries have the right in certain circumstances to require us to purchase all or a portion of their equity interests at fair value as defined in the applicable agreements. Assuming that the subsidiaries perform over the relevant periods at their current profit levels, at December 31, 2014 the aggregate estimated maximum amount we could be required to pay in future periods is $185.7 million, of which $96.7 million is currently exercisable by the holders. If these rights are exercised, there would be an increase in the net income attributable to Omnicom as a result of our increased ownership interest and the reduction of net income attributable to noncontrolling interests. The ultimate amount paid could be significantly different because the redemption amount is primarily dependent on the future results of operations of the subject businesses, the timing of the exercise of these rights and changes in foreign currency exchange rates.

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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Tables)

12 Months Ended

Dec. 31, 2014

Schedule II [Abstract]

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

For the Three Years Ended December 31, 2014

(In millions)

Description	Balance Beginning of Period		Charged to Costs and Expenses		Removal of Uncollectible Receivables			Translation Adjustment Increase (Decrease)			Balance End of Period
Valuation accounts deducted from assets:
Allowance for Doubtful Accounts:
December 31, 2014	$	32.6	$	8.5	$	(14.9	)	$	(1.3	)	$	24.9
December 31, 2013	35.9		9.7		(12.8		)	(0.2		)	32.6
December 31, 2012	40.6		11.4		(16.5		)	0.4			35.9

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Taxes [Abstract]

Income Before Income Taxes

Income before income taxes for the three years ended December 31, 2014 was (in millions):

	2014		2013		2012
Domestic	$	739.9	$	629.4	$	683.5
International	1,070.1		1,031.5		976.1
	$	1,810.0	$	1,660.9	$	1,659.6

Income Tax Expense

Income tax expense (benefit) for the three years ended December 31, 2014 was (in millions):

	2014			2013			2012
Current:
Federal	$	356.1		$	246.3		$	163.3
State and local	38.1			30.6			40.1
International	344.8			336.5			298.3
	739.0			613.4			501.7
Deferred:
Federal	(106.4		)	0.3			41.7
State and local	(2.3		)	(3.6		)	4.7
International	(37.2		)	(44.9		)	(21.0		)
	(145.9		)	(48.2		)	25.4
	$	593.1		$	565.2		$	527.1

Reconciliation from the Statutory U.S. Federal Income Tax Rate to Effective Tax Rate

The reconciliation from the statutory U.S. federal income tax rate to our effective tax rate is:

	2014		2013		2012
Statutory U.S. federal income tax rate	35.0	%	35.0	%	35.0	%
State and local income taxes, net of federal income tax benefit	1.3		1.0		1.7
Reduction of tax on unremitted foreign earnings due to     legal reorganization	—		—		(1.3	)
International tax rate differentials	(3.3	)	(3.0	)	(3.3	)
Other	(0.2	)	1.0		(0.3	)
Effective tax rate	32.8	%	34.0	%	31.8	%

Components of Deferred Tax Assets and Liabilities

The components of deferred tax assets and liabilities at December 31, 2014 and 2013 were (in millions):

	2014			2013
Deferred tax assets:
Compensation and severance	$	311.9		$	269.8
Tax loss and credit carryforwards	95.6			149.1
Basis differences from acquisitions	38.0			28.7
Basis differences from short-term assets and liabilities	27.8			28.2
Other	33.0			53.2
Deferred tax assets	506.3			529.0
Valuation allowance	(34.1		)	(56.8		)
Net deferred tax assets	$	472.2		$	472.2
Deferred tax liabilities:
Goodwill and intangible assets	$	706.1		$	673.3
Financial instruments	263.1			421.8
Unremitted foreign earnings	51.1			114.5
Basis differences from investments	(4.2		)	(5.7		)
Deferred tax liabilities	$	1,016.1		$	1,203.9
Net deferred tax assets (liabilities)	$	(543.9	)	$	(731.7	)

Net Deferred Tax Assets and (Liabilities) as Classified in the Balance Sheet

Our net deferred tax assets and (liabilities) at December 31, 2014 and 2013, were classified as follows (in millions):

	2014			2013
Other current assets - deferred taxes	$	110.8		$	100.9
Long-term deferred tax liabilities	(654.7		)	(832.6		)
	$	(543.9	)	$	(731.7	)

Reconciliation of Unrecognized Tax Benefits

A reconciliation of our unrecognized tax benefits at December 31, 2014 and 2013 is (in millions):

	2014			2013
January 1	$	137.8		$	188.6
Additions:
Current year tax positions	6.0			5.1
Prior year tax positions	1.0			0.4
Reduction of prior year tax positions	0.5			(31.4		)
Settlements	(0.8		)	(24.6		)
Lapse of statute of limitations	(2.9		)	(0.2		)
Foreign currency translation	(1.8		)	(0.1		)
December 31	$	139.8		$	137.8

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Net Income per Common Share (Tables)

12 Months Ended

Dec. 31, 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 years ended December 31, 2014 were (in millions, except per share amounts):

	2014			2013			2012
Net Income Available for Common Shares:
Net income - Omnicom Group Inc.	$	1,104.0		$	991.1		$	998.3
Net income allocated to participating securities	(20.4		)	(25.1		)	(22.5		)
	$	1,083.6		$	966.0		$	975.8
Weighted Average Shares:
Basic	253.9			258.9			268.3
Dilutive stock options and restricted shares	1.4			1.5			1.7
Diluted	255.3			260.4			270.0
Anti-dilutive stock options and restricted shares	0.6			0.7			0.3
Net Income per Common Share - Omnicom Group Inc.:
Basic	$	4.27		$	3.73		$	3.64
Diluted	$	4.24		$	3.71		$	3.61

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Net Income per Common Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net Income Available for Common Shares:
Net income - Omnicom Group Inc.	$ 329.5	$ 243.8	$ 325.2	$ 205.5	$ 300.5	$ 196.0	$ 289.5	$ 205.1	$ 1,104.0	$ 991.1	$ 998.3
Net income allocated to participating securities									(20.4)	(25.1)	(22.5)
Net income available for common shares									$ 1,083.6	$ 966.0	$ 975.8
Weighted Average Shares:
Basic									253.9	258.9	268.3
Dilutive stock options and restricted shares									1.4	1.5	1.7
Diluted									255.3	260.4	270.0
Anti-dilutive stock options and restricted shares									0.6	0.7	0.3
Net Income per Common Share - Omnicom Group Inc.:
Basic	$ 1.30	$ 0.95	$ 1.24	$ 0.78	$ 1.14	$ 0.74	$ 1.09	$ 0.76	$ 4.27	$ 3.73	$ 3.64
Diluted	$ 1.30	$ 0.95	$ 1.23	$ 0.77	$ 1.13	$ 0.74	$ 1.09	$ 0.76	$ 4.24	$ 3.71	$ 3.61

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Derivative Instruments and Hedging Activities (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Long-Term Debt, fixed rate, percentage	50.00%
Long-Term Debt, floating rate, percentage	50.00%
Forward Foreign Exchange Contracts [Member]
Forward foreign exchange contracts, terms	The terms of our forward contracts are generally less than 90 days.
Foreign Exchange Risk of Intercompany Borrowing and Investment Activities [Member] | Fair Value Hedge [Member] | Designated as Hedging Instrument [Member] | Forward Foreign Exchange Contracts [Member]
Forward foreign exchange contracts, notional amount	113,100,000	$ 207,000,000
Foreign Exchange Risk of Revenue and Expenses Denominated in Different Currencies [Member] | Fair Value Hedge [Member] | Designated as Hedging Instrument [Member] | Forward Foreign Exchange Contracts [Member]
Forward foreign exchange contracts, notional amount	44,000,000	56,200,000
Interest Rate Swaps on 2022 Notes [Member]
Interest rate swaps, hedged amount	1,250,000,000
Interest Rate Swaps on 2020 Notes [Member]
Interest rate swaps, hedged amount	1,000,000,000
LIBOR [Member] | Interest Rate Swaps on 2022 Notes [Member]
Interest rate swaps, spread	1.05%
LIBOR [Member] | Interest Rate Swaps on 2020 Notes [Member]
Interest rate swaps, spread	2.16%

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Pension and Other Postemployment Benefits (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Contribution Plans [Abstract]
Defined contribution plans, contribution expense	$ 108.4	$ 109.3	$ 113.5
Defined Benefit Pension Plans [Member]
Defined Benefit Pension Plans and Postemployment Arrangements [Abstract]
Defined benefit plans, plan information	Certain of our subsidiaries sponsor noncontributory defined benefit pension plans. Two of our U.S. businesses and several of our non-U.S. businesses sponsor pension plans. These plans provide benefits to employees based on formulas recognizing length of service and earnings. The U.S. plans cover approximately 1,200 participants, are closed to new participants and do not accrue future benefit credits. The non-U.S. plans, which include plans required by local law, cover approximately 6,500 participants and are not covered by ERISA.
Components of Net Periodic Benefit Cost [Abstract]
Service cost	6.8	4.6	6.6
Interest cost	8.2	7.3	7.6
Expected return on plan assets	(4.2)	(3.7)	(3.5)
Amortization of prior service cost	4.3	3.6	3.1
Amortization of actuarial (gains) losses	2.3	3.5	1.0
Net periodic benefit cost	17.4	15.3	14.8
Amounts Recognized in Accumulated Other Comprehensive Income [Abstract]
Unrecognized actuarial gains and losses and unrecognized prior service cost	91.0	68.6
Unrecognized actuarial gains and losses and unrecognized prior service cost, net of tax	56.0	42.3
Unrecognized actuarial gains and losses expected to be amortized in the next year	10.1
Weighted Average Assumptions Used to Determine the Net Periodic Benefit Cost [Abstract]
Discount rate	4.50%	3.90%	4.60%
Compensation increases	1.80%	1.60%	1.80%
Expected return on plan assets	5.80%	5.30%	6.00%
Defined benefit pension plans, contributions by employer	3.2	5.5	9.1
Benefit Obligation [Rollforward]
January 1	185.7	188.4
Service cost	6.8	4.6	6.6
Interest cost	8.2	7.3	7.6
Amendments, curtailments and settlements	0	7.6
Actuarial (gains) losses	31.3	(18.0)
Benefits paid	(5.0)	(5.1)
Foreign currency translation and other	(4.3)	0.9
December 31	222.7	185.7	188.4
Fair Value of Plan Assets [Rollforward]
January 1	72.2	62.7
Actual return on plan assets	6.5	8.1
Employer contributions	3.2	5.5	9.1
Benefits paid	(5.0)	(5.1)
Foreign currency translation and other	(2.5)	1.0
December 31	74.4	72.2	62.7
Funded Status [Abstract]
Funded Status December 31:	(148.3)	(113.5)
Amounts Recorded in Balance Sheet [Abstract]
Other assets	4.6	5.6
Other current liabilities	(4.4)	(1.1)
Long-term liabilities	(148.5)	(118.0)
Total amount recognized in balance sheet	(148.3)	(113.5)
Accumulated benefit obligation	210.0	173.0
Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Benefit obligation	212.0	143.1
Plan assets	59.0	24.0
Plans with benefit obligations in excess of plan assets, Liabilities	153.0	119.1
Weighted Average Assumptions Used to Determine Benefit Obligation [Abstract]
Discount rate	3.50%	4.40%
Compensation increases	1.80%	1.60%
Estimated Future Benefit Payments [Abstract]
2015	7.6
2016	8.2
2017	9.0
2018	9.3
2019	10.4
2020 - 2024	72.0
Weighted Average Asset Allocations [Abstract]
Percentage of Plan Assets, Target Allocation	100.00%
Percentage of Plan Assets, Actual Allocation	100.00%	100.00%
Defined Benefit Pension Plans [Member] | Level 1
Fair Value of Plan Assets [Rollforward]
December 31	70.4	67.9
Defined Benefit Pension Plans [Member] | Level 2
Fair Value of Plan Assets [Rollforward]
December 31	0.3	0.9
Defined Benefit Pension Plans [Member] | Level 3
Fair Value of Plan Assets [Rollforward]
January 1	3.4	2.9
Actual return on plan assets	0.1	0.1
Purchases, sales and settlements, net	0.2	0.4
December 31	3.7	3.4
Defined Benefit Pension Plans [Member] | Cash
Fair Value of Plan Assets [Rollforward]
January 1	2.1
December 31	2.6
Weighted Average Asset Allocations [Abstract]
Percentage of Plan Assets, Target Allocation	5.00%
Percentage of Plan Assets, Actual Allocation	3.00%	3.00%
Defined Benefit Pension Plans [Member] | Cash | Level 1
Fair Value of Plan Assets [Rollforward]
December 31	2.6	2.1
Defined Benefit Pension Plans [Member] | Mutual funds
Fair Value of Plan Assets [Rollforward]
January 1	42.5
December 31	43.4
Weighted Average Asset Allocations [Abstract]
Percentage of Plan Assets, Target Allocation	54.00%
Percentage of Plan Assets, Actual Allocation	58.00%	59.00%
Defined Benefit Pension Plans [Member] | Mutual funds | Level 1
Fair Value of Plan Assets [Rollforward]
December 31	43.4	42.5
Defined Benefit Pension Plans [Member] | Unit trusts
Fair Value of Plan Assets [Rollforward]
January 1	23.3
December 31	24.4
Weighted Average Asset Allocations [Abstract]
Percentage of Plan Assets, Target Allocation	33.00%
Percentage of Plan Assets, Actual Allocation	33.00%	32.00%
Defined Benefit Pension Plans [Member] | Unit trusts | Level 1
Fair Value of Plan Assets [Rollforward]
December 31	24.4	23.3
Defined Benefit Pension Plans [Member] | Insurance contracts
Fair Value of Plan Assets [Rollforward]
January 1	3.4
December 31	3.7
Weighted Average Asset Allocations [Abstract]
Percentage of Plan Assets, Target Allocation	5.00%
Percentage of Plan Assets, Actual Allocation	5.00%	5.00%
Defined Benefit Pension Plans [Member] | Insurance contracts | Level 3
Fair Value of Plan Assets [Rollforward]
December 31	3.7	3.4
Defined Benefit Pension Plans [Member] | Other
Fair Value of Plan Assets [Rollforward]
January 1	0.9
December 31	0.3
Weighted Average Asset Allocations [Abstract]
Percentage of Plan Assets, Target Allocation	3.00%
Percentage of Plan Assets, Actual Allocation	1.00%	1.00%
Defined Benefit Pension Plans [Member] | Other | Level 2
Fair Value of Plan Assets [Rollforward]
December 31	0.3	0.9
Retention Plan [Member]
Defined Benefit Pension Plans and Postemployment Arrangements [Abstract]
Defined benefit plans, plan information	In addition, we have a Senior Executive Restrictive Covenant and Retention Plan (“Retention Plan”) for certain executive officers of Omnicom selected to participate by the Compensation Committee. The Retention Plan is a non-qualified deferred compensation severance plan that was adopted to secure non-competition, non-solicitation, non-disparagement and ongoing consulting services from such executive officers and to strengthen the retention aspect of executive officer compensation. The Retention Plan provides annual payments upon termination following at least seven years of service with Omnicom or its subsidiaries to the participants or to their beneficiaries. A participant’s annual benefit is payable for 15 consecutive calendar years following termination, but in no event prior to age 55. The annual benefit is equal to the lesser of (i) the participant’s final average pay times an applicable percentage, which is based upon the executive’s years of service as an executive officer, not to exceed 35% or (ii) $1.5 million adjusted for cost-of-living, beginning with the second annual payment, not to exceed 2.5% per year. The Retention Plan is unfunded and benefits are paid when due.
Postemployment Arrangements [Member]
Defined Benefit Pension Plans and Postemployment Arrangements [Abstract]
Defined benefit plans, plan information	We have executive retirement agreements under which benefits will be paid to participants or to their beneficiaries over periods up to ten years beginning after cessation of full-time employment. Our postemployment arrangements are unfunded and benefits are paid when due.
Components of Net Periodic Benefit Cost [Abstract]
Service cost	3.8	4.1	4.1
Interest cost	4.5	4.3	4.7
Amortization of prior service cost	2.1	1.9	0.7
Amortization of actuarial (gains) losses	0.9	1.5	2.0
Net periodic benefit cost	11.3	11.8	11.5
Amounts Recognized in Accumulated Other Comprehensive Income [Abstract]
Unrecognized actuarial gains and losses and unrecognized prior service cost	60.0	44.2
Unrecognized actuarial gains and losses and unrecognized prior service cost, net of tax	36.0	26.5
Unrecognized actuarial gains and losses expected to be amortized in the next year	4.8
Weighted Average Assumptions Used to Determine the Net Periodic Benefit Cost [Abstract]
Discount rate	4.70%	4.10%	4.90%
Compensation increases	3.50%	3.50%	3.50%
Benefit Obligation [Rollforward]
January 1	104.2	118.7
Service cost	3.8	4.1	4.1
Interest cost	4.5	4.3	4.7
Amendments, curtailments and settlements	7.5	2.8
Actuarial (gains) losses	11.3	(12.3)
Benefits paid	(9.2)	(13.4)
December 31	122.1	104.2	118.7
Fair Value of Plan Assets [Rollforward]
Benefits paid	(9.2)	(13.4)
Amounts Recorded in Balance Sheet [Abstract]
Other current liabilities	(8.7)	(9.3)
Long-term liabilities	(113.4)	(94.9)
Total amount recognized in balance sheet	(122.1)	(104.2)
Weighted Average Assumptions Used to Determine Benefit Obligation [Abstract]
Discount rate	3.80%	4.70%
Compensation increases	3.50%	3.50%
Estimated Future Benefit Payments [Abstract]
2015	8.7
2016	9.0
2017	7.6
2018	7.4
2019	5.7
2020 - 2024	$ 26.9

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Fair Value (Tables)

12 Months Ended

Dec. 31, 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 December 31, 2014 and 2013 were (in millions):

2014	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents	$	2,388.1					$	2,388.1
Short-term investments	2.2						2.2
Available-for-sale securities	4.9						4.9
Interest rate and foreign currency derivative instruments			$	43.1			43.1
Liabilities:
Foreign currency derivative instruments			$	0.4			$	0.4
Contingent purchase price obligations					$	300.7	300.7

2013
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 years ended December 31, 2014 and 2013 were (in millions):

	2014			2013
January 1	$	220.2		$	266.2
Acquisitions	167.1			35.8
Revaluation and interest	11.0			(10.9		)
Payments	(83.2		)	(70.5		)
Foreign currency translation	(14.4		)	(0.4		)
December 31	$	300.7		$	220.2

Carrying Amounts and Fair Value of Financial Instruments

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

	2014				2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents	$	2,388.1	$	2,388.1	$	2,710.5	$	2,710.5
Short-term investments	2.2		2.2		18.2		18.2
Available-for-sale securities	4.9		4.9		4.9		4.9
Interest rate and foreign currency derivative instruments	43.1		43.1		2.2		2.2
Cost method investments	21.8		21.8		22.2		22.2
Liabilities:
Short-term borrowings	$	7.2	$	7.2	$	5.9	$	5.9
Foreign currency derivative instruments	0.4		0.4		0.1		0.1
Contingent interest derivative	—		—		2.1		2.1
Contingent purchase price obligations	300.7		300.7		220.2		220.2
Debt	4,563.0		4,754.9		4,033.8		4,302.7

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Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash Flows from Operating Activities:
Net Income	$ 1,233.1	$ 1,111.6	$ 1,117.5
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	187.3	184.0	181.6
Amortization of intangible assets	107.1	100.8	101.1
Impairment charge on equity method investment, net	0	10.7	29.2
Share-based compensation	93.5	86.3	80.8
Excess tax benefit from share-based compensation	(29.6)	(37.8)	(85.3)
Other, net	(8.7)	2.1	1.2
Change in operating capital	(106.2)	351.3	25.2
Net Cash Provided By Operating Activities	1,476.5	1,809.0	1,451.3
Cash Flows from Investing Activities:
Capital expenditures	(213.0)	(212.0)	(226.3)
Acquisition of businesses and interests in affiliates, net of cash acquired	(74.9)	(32.8)	(132.7)
Proceeds from investments, net	21.0	16.6	8.6
Net Cash Used In Investing Activities	(266.9)	(228.2)	(350.4)
Cash Flows from Financing Activities:
Repayment of short-term debt	2.1	(0.4)	(3.3)
Proceeds from borrowings	747.6	0	1,273.2
Redemption of convertible debt	(252.7)	(406.7)	0
Dividends paid to common shareholders	(468.0)	(318.4)	(397.8)
Repurchases of common stock	(1,063.0)	(575.3)	(1,136.5)
Proceeds from stock plans	39.3	52.3	219.2
Acquisition of additional noncontrolling interests	(69.5)	(8.9)	(32.0)
Dividends paid to noncontrolling interest shareholders	(111.3)	(100.6)	(98.4)
Payment of contingent purchase price obligations	(83.2)	(70.5)	(32.2)
Excess tax benefit from share-based compensation	29.6	37.8	85.3
Other, net	(29.0)	(29.1)	(97.6)
Net Cash Used In Financing Activities	(1,258.1)	(1,419.8)	(220.1)
Effect of foreign exchange rate changes on cash and cash equivalents	(273.9)	(128.8)	16.3
Net (Decrease) Increase in Cash and Cash Equivalents	(322.4)	32.2	897.1
Cash and Cash Equivalents at the Beginning of Year	2,710.5	2,678.3	1,781.2
Cash and Cash Equivalents at the End of Year	$ 2,388.1	$ 2,710.5	$ 2,678.3

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Supplemental Cash Flow Data (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Change in Operating Capital [Abstract]
(Increase) decrease in accounts receivable	$ (227.1)	$ 244.8	$ (218.7)
(Increase) decrease in work in process and other current assets	(24.2)	(354.5)	4.8
Increase (decrease) in accounts payable	161.8	143.5	127.8
Increase (decrease) in customer advances and other current liabilities	45.5	252.6	(151.8)
Change in other assets and liabilities, net	(62.2)	64.9	263.1
Change in operating capital	(106.2)	351.3	25.2
Income taxes paid	610.1	472.4	321.1
Interest paid	188.6	192.8	165.5
Convertible Notes due July 31, 2032
Change in Operating Capital [Abstract]
Convertible debt, shares issued for conversion premium	1,217,112
Convertible debt, fair value of common stock issued	89.2
Convertible debt, adjustment to additional paid-in capital	32.2
2033 Notes and 2038 Notes [Member]
Change in Operating Capital [Abstract]
Convertible debt, shares issued for conversion premium		1,499,792
Convertible debt, fair value of common stock issued		95.4
Convertible debt, adjustment to additional paid-in capital		$ 34.5

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Pension and Other Postemployment Benefits (Tables)

12 Months Ended

Dec. 31, 2014

Defined Benefit Pension Plans [Member]

Components of Net Periodic Benefit Cost

The components of net periodic benefit cost for the three years ended December 31, 2014 were (in millions):

	2014			2013			2012
Service cost	$	6.8		$	4.6		$	6.6
Interest cost	8.2			7.3			7.6
Expected return on plan assets	(4.2		)	(3.7		)	(3.5		)
Amortization of prior service cost	4.3			3.6			3.1
Amortization of actuarial (gains) losses	2.3			3.5			1.0
	$	17.4		$	15.3		$	14.8

Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost

The weighted average assumptions used to determine net periodic benefit cost for the three years ended December 31, 2014 were:

	2014		2013		2012
Discount rate	4.5	%	3.9	%	4.6	%
Compensation increases	1.8	%	1.6	%	1.8	%
Expected return on plan assets	5.8	%	5.3	%	6.0	%

Benefit Obligation, Fair Value of Plan Assets and Funded Status of Defined Benefit Pension Plans

At December 31, 2014 and 2013, the benefit obligation, fair value of plan assets and funded status of our defined benefit pension plans were (in millions):

	2014			2013
Benefit Obligation:
January 1	$	185.7		$	188.4
Service cost	6.8			4.6
Interest cost	8.2			7.3
Amendments, curtailments and settlements	—			7.6
Actuarial (gains) losses	31.3			(18.0		)
Benefits paid	(5.0		)	(5.1		)
Foreign currency translation and other	(4.3		)	0.9
December 31	$	222.7		$	185.7
Fair Value of Plan Assets:
January 1	$	72.2		$	62.7
Actual return on plan assets	6.5			8.1
Employer contributions	3.2			5.5
Benefits paid	(5.0		)	(5.1		)
Foreign currency translation and other	(2.5		)	1.0
December 31	$	74.4		$	72.2
Funded Status December 31:	$	(148.3	)	$	(113.5	)

Amounts Recorded in Balance Sheet

At December 31, 2014 and 2013, the funded status was classified as follows (in millions):

	2014			2013
Other assets	$	4.6		$	5.6
Other current liabilities	(4.4		)	(1.1		)
Long-term liabilities	(148.5		)	(118.0		)
	$	(148.3	)	$	(113.5	)

Plans with Benefit Obligations in Excess of Plan Assets

At December 31, 2014 and 2013, plans with benefit obligations in excess of plan assets were (in millions):

	2014		2013
Benefit obligation	$	212.0	$	143.1
Plan assets	59.0		24.0
	$	153.0	$	119.1

Weighted Average Assumptions Used to Determine Benefit Obligation

The weighted average assumptions used to determine the benefit obligation at December 31, 2014 and 2013, were:

	2014		2013
Discount rate	3.5	%	4.4	%
Compensation increases	1.8	%	1.6	%

Estimated Future Benefit Payments

At December 31, 2014, the estimated benefits expected to be paid over the next 10 years are (in millions):

2015	$	7.6
2016	8.2
2017	9.0
2018	9.3
2019	10.4
2020 - 2024	72.0

Fair Value of Plan Assets

The fair value of plan assets at December 31, 2014 and 2013 was (in millions):

2014	Level 1		Level 2		Level 3		Total
Cash	$	2.6					$	2.6
Mutual funds	43.4						43.4
Unit trusts	24.4						24.4
Insurance contracts					$	3.7	3.7
Other			$	0.3			0.3
	$	70.4	$	0.3	$	3.7	$	74.4

2013
Cash	$	2.1					$	2.1
Mutual funds	42.5						42.5
Unit trusts	23.3						23.3
Insurance contracts					$	3.4	3.4
Other			$	0.9			0.9
	$	67.9	$	0.9	$	3.4	$	72.2

Changes in Fair Value of Plan Assets Measured Using Level 3 Inputs

Changes in the fair value of plan assets measured using Level 3 inputs at December 31, 2014 and 2013 were (in millions):

	2014		2013
January 1	$	3.4	$	2.9
Actual return on assets	0.1		0.1
Purchases, sales and settlements, net	0.2		0.4
December 31	$	3.7	$	3.4

Weighted Average Plan Asset Allocations

The weighted average asset allocations at December 31, 2014 and 2013 were:

	2014				2013
	Target Allocation		Actual Allocation		Actual Allocation
Cash	5	%	3	%	3	%
Mutual funds	54	%	58	%	59	%
Unit trusts	33	%	33	%	32	%
Insurance contracts	5	%	5	%	5	%
Other	3	%	1	%	1	%
	100	%	100	%	100	%

Postemployment Arrangements [Member]

Components of Net Periodic Benefit Cost

The components of net periodic benefit cost for the three years ended December 31, 2014 were (in millions):

	2014		2013		2012
Service cost	$	3.8	$	4.1	$	4.1
Interest cost	4.5		4.3		4.7
Amortization of prior service cost	2.1		1.9		0.7
Amortization of actuarial (gains) losses	0.9		1.5		2.0
	$	11.3	$	11.8	$	11.5

Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost

The weighted average assumptions used to determine net periodic benefit cost for the three years ended December 31, 2014 were:

	2014		2013		2012
Discount rate	4.7	%	4.1	%	4.9	%
Compensation increases	3.5	%	3.5	%	3.5	%

Benefit Obligation

At December 31, 2014 and 2013, the benefit obligation was (in millions):

	2014			2013
January 1	$	104.2		$	118.7
Service cost	3.8			4.1
Interest cost	4.5			4.3
Amendments	7.5			2.8
Actuarial (gains) losses	11.3			(12.3		)
Benefits paid	(9.2		)	(13.4		)
December 31	$	122.1		$	104.2

Amounts Recorded in Balance Sheet

At December 31, 2014 and 2013, the liability was classified as follows (in millions):

	2014		2013
Other current liabilities	$	8.7	$	9.3
Long-term liabilities	113.4		94.9
	$	122.1	$	104.2

Weighted Average Assumptions Used to Determine Benefit Obligation

The weighted average assumptions used to determine the benefit obligation at December 31, 2014 and 2013 were:

	2014		2013
Discount rate	3.8	%	4.7	%
Compensation increases	3.5	%	3.5	%

Estimated Future Benefit Payments

At December 31, 2014, the estimated benefits expected to be paid over the next 10 years are (in millions):

2015	$	8.7
2016	9.0
2017	7.6
2018	7.4
2019	5.7
2020 - 2024	26.9

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New Accounting Standards

12 Months Ended

Dec. 31, 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”), which replaces all existing revenue recognition guidance under U.S. GAAP. 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 adopted ASU 2014-15 effective December 31, 2014 and the adoption did not have an impact on the presentation of our results of operations, financial position or disclosures.

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Derivative Instruments and Hedging Activities

12 Months Ended

Dec. 31, 2014

Derivative Instruments and Hedging Activities [Abstract]

Derivative Instruments and Hedging Activities

Derivative Instruments and Hedging Activities

As a global business, we operate in multiple foreign currencies and issue debt in the capital markets. Our regional treasury centers use derivative financial instruments, such as forward foreign exchange contracts, as an economic hedge to better manage the cash flow volatility arising from foreign exchange rate fluctuations. We use derivative financial instruments, such as fixed-to-floating interest rate swaps, to manage the cost of debt more efficiently.

As a result of using derivative financial instruments, we are exposed to the risk that counterparties to the derivative contracts will fail to meet their contractual obligations. To mitigate 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 evaluate the effects of changes in foreign currency exchange rates, interest rates and other relevant market risks on our derivative instruments. We periodically determine the potential loss from market risk on our derivative instruments by performing a value-at-risk ("VaR") analysis. VaR is a statistical model that utilizes historical currency exchange and interest rate data to measure the potential impact on future earnings of our derivative financial instruments assuming normal market conditions. The VaR model is not intended to represent actual losses but is used as a risk estimation and management tool. Based on the results of the model, we estimate with 95% confidence a maximum one-day change in the net fair value of our derivative financial instruments at December 31, 2014 was not significant.

Foreign Exchange Risk

Our regional treasury centers in North America, Europe and Asia centralize and manage our cash. As an integral part of our treasury operations, we use multicurrency pool arrangements to manage the foreign exchange risk between subsidiaries and the treasury centers from which they borrow or invest funds. In certain circumstances, instead of using a multicurrency pool, operations can borrow or invest on an intercompany basis with a treasury center operating in a different currency. To manage the foreign exchange risk associated with these transactions, we use forward foreign exchange contracts. At December 31, 2014 and 2013, we had outstanding forward foreign exchange contracts with an aggregate notional amount of $113.1 million and $207.0 million, respectively, mitigating the foreign exchange risk of the intercompany borrowing and investment activities. Additionally, the treasury centers use forward foreign exchange contracts to mitigate the foreign currency risk associated with activities when revenue and expenses are not denominated in the same currency. In these instances, amounts are promptly

settled or hedged with forward foreign exchange contracts. At December 31, 2014 and 2013, we had outstanding forward foreign exchange contracts with an aggregate notional amount of $44.0 million and $56.2 million, respectively, mitigating the foreign exchange risk related to these activities. See Note 18 for a discussion of the fair value of these instruments. The terms of our forward contracts are generally less than 90 days. We designate foreign currency derivative instruments as an economic hedge; therefore, any gain or loss in fair value incurred on those instruments is generally offset by decreases or increases in the fair value of the underlying exposures. By using these financial instruments, we reduced financial risk of adverse foreign exchange changes by foregoing any gain (reward) which might have occurred if the markets moved favorably.

Interest Rate Risk

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Debt (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Lines of Credit [Abstract]
Available and unused credit lines	$ 3,437,800,000	$ 3,551,500,000
Short-Term Borrowings [Abstract]
Short-term borrowings	7,200,000	5,900,000
Short-term borrowings, weighted average interest rate	6.00%	5.60%
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	4,500,500,000	3,750,500,000
Unamortized premium (discount) on Senior Notes, net	11,100,000	14,700,000
Adjustment to carrying value for interest rate swaps	51,400,000	15,900,000
Long-term notes payable, total	4,563,000,000	3,781,100,000
Long-term notes payable, current portion	(400,000)	(400,000)
Long-Term Notes Payable	4,562,600,000	3,780,700,000
Long-term notes payable, proceeds from borrowings	747,600,000	0	1,273,200,000
Interest rate swaps, fair value	42,700,000
Convertible Debt [Abstract]
Convertible Debt	0	252,700,000
Components of Interest Expense [Abstract]
Interest expense, fees	6,200,000	6,500,000	6,200,000
Interest expense, other	13,100,000	14,300,000	16,000,000
Interest expense, total	177,200,000	197,200,000	179,700,000
Stated Maturities of Long-Term Notes Payable and Convertible Debt [Abstract]
Stated maturities of long-term notes payable and convertible debt, 2015	400,000
Stated maturities of long-term notes payable and convertible debt, 2016	1,000,100,000
Stated maturities of long-term notes payable and convertible debt, 2017	0
Stated maturities of long-term notes payable and convertible debt, 2018	0
Stated maturities of long-term notes payable and convertible debt, 2019	500,000,000
Stated maturities of long-term notes payable and convertible debt, Thereafter	3,000,000,000
Stated maturities of long-term notes payable and convertible debt	4,500,500,000
Interest Rate Swaps on 2022 Notes [Member]
Long-Term Notes Payable [Abstract]
Interest rate swaps, inception date	May 01, 2014
Interest rate swaps, hedged amount	1,250,000,000
Interest Rate Swaps on 2022 Notes [Member] | LIBOR [Member]
Long-Term Notes Payable [Abstract]
Interest rate swaps, spread	1.05%
Interest Rate Swaps on 2020 Notes [Member]
Long-Term Notes Payable [Abstract]
Interest rate swaps, inception date	Sep. 29, 2014
Interest rate swaps, hedged amount	1,000,000,000
Interest Rate Swaps on 2020 Notes [Member] | LIBOR [Member]
Long-Term Notes Payable [Abstract]
Interest rate swaps, spread	2.16%
Credit Agreement expiring July 31, 2019 [Member]
Lines of Credit [Abstract]
Credit Agreement, maximum borrowing capacity	2,500,000,000
Credit Agreement, expiration date	Jul. 31, 2019
Available and unused credit lines	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 to 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 December 31, 2014 we were in compliance with these covenants, as our Leverage Ratio was 2.0 times and our Interest Coverage Ratio was 12.6 times.
Credit Agreement expiring July 31, 2019 [Member] | Commercial Paper [Member]
Lines of Credit [Abstract]
Credit Agreement, maximum borrowing capacity	2,000,000,000
Commercial Paper [Member]
Components of Interest Expense [Abstract]
Interest expense, debt	2,900,000	1,700,000	1,300,000
Uncommitted lines of credit [Member]
Lines of Credit [Abstract]
Available and unused credit lines	937,800,000	1,051,500,000
Long-Term Notes Payable [Member]
Components of Interest Expense [Abstract]
Interest expense, debt	155,000,000	174,700,000	156,200,000
5.9% Senior Notes due 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 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 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 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
3.65% Senior Notes due 2024
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	750,000,000	0
Long-Term Notes Payable and Convertible Debt [Abstract]
Interest rate	3.65%
Maturity date	Nov. 01, 2024
Other notes and loans
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	500,000	500,000
Convertible Notes due July 31, 2032
Convertible Debt [Abstract]
Convertible debt, call date	Jun. 05, 2014
Convertible debt, percentage of principal amount redeemed	100.00%
Convertible debt, conversion rate	18.463
Convertible debt, latest conversion date	Jul. 29, 2014
Convertible debt, shares issued for conversion premium	1,217,112
Convertible debt, repurchase date	Jul. 31, 2014
2033 Notes and 2038 Notes [Member]
Convertible Debt [Abstract]
Convertible debt, call date		May 16, 2013
Convertible debt, percentage of principal amount redeemed		100.00%
Convertible debt, conversion rate		19.4174
Convertible debt, principle amount settled in cash		$ 406,100,000
Convertible debt, shares issued for conversion premium		1,499,792
Convertible debt, repurchase date		Jun. 17, 2013

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Supplemental Cash Flow Data (Tables)

12 Months Ended

Dec. 31, 2014

Supplemental Cash Flow Data [Abstract]

Change in Operating Capital

The change in operating capital for the three years ended December 31, 2014 was (in millions):

	2014			2013			2012
(Increase) decrease in accounts receivable	$	(227.1	)	$	244.8		$	(218.7	)
(Increase) decrease in work in process and other current assets	(24.2		)	(354.5		)	4.8
Increase (decrease) in accounts payable	161.8			143.5			127.8
Increase (decrease) in customer advances and other current liabilities	45.5			252.6			(151.8		)
Change in other assets and liabilities, net	(62.2		)	64.9			263.1
	$	(106.2	)	$	351.3		$	25.2
Income taxes paid	$	610.1		$	472.4		$	321.1
Interest paid	$	188.6		$	192.8		$	165.5

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Changes in Accumulated Other Comprehensive Income (Loss)

12 Months Ended

Dec. 31, 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 years ended December 31, 2014 and 2013 were (in millions):

2014	Unrealized Gain (Loss) on Available-for-Sale Securities			Defined Benefit Pension and Postemployment Plans			Foreign Currency Translation			Total
January 1	$	(1.6	)	$	(68.8	)	$	(121.2	)	$	(191.6	)
Other comprehensive income (loss) before reclassifications	0.4			—			(403.7		)	(403.3		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			(23.3		)	—			(23.3		)
Other comprehensive income (loss)	0.4			(23.3		)	(403.7		)	(426.6		)
December 31	$	(1.2	)	$	(92.1	)	$	(524.9	)	$	(618.2	)

2013
January 1	$	(2.0	)	$	(89.8	)	$	(37.7	)	$	(129.5	)
Other comprehensive income (loss) before reclassifications	0.4			—			(83.5		)	(83.1		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			21.0			—			21.0
Other comprehensive income (loss)	0.4			21.0			(83.5		)	(62.1		)
December 31	$	(1.6	)	$	(68.8	)	$	(121.2	)	$	(191.6	)

Reclassifications from accumulated other comprehensive income (loss) for the year ended December 31, 2014 and 2013 were (in millions):

	2014			2013
Amortization of defined benefit pension and postemployment plans:
Prior service cost	$	6.4		$	5.5
Actuarial (gains) losses	3.2			5.0
Net periodic benefit cost (see Note 12)	9.6			10.5
Income taxes	(3.8		)	(4.2		)
Periodic benefit cost, net of income tax	$	5.8		$	6.3

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Subsequent Events

12 Months Ended

Dec. 31, 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 our financial statements.

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Consolidated Statements of Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Common stock dividends declared, per share	$ 1.90	$ 1.60	$ 1.20

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Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2014

Selected Quarterly Financial Data (Unaudited) [Abstract]

Selected Quarterly Financial Data (Unaudited)

Quarterly Financial Data (Unaudited)

(In millions, except per share amounts)

The Company’s unaudited selected quarterly financial data for the years ended December 31, 2014 and 2013 were:

	Quarter
	First		Second		Third		Fourth
Revenue
2014	$	3,502.2	$	3,870.9	$	3,749.6	$	4,195.1
2013	3,398.9		3,637.0		3,490.5		4,058.1
Operating Expenses
2014	3,119.5		3,322.5		3,316.0		3,615.7
2013	3,027.2		3,114.0		3,111.1		3,506.9
Operating Income
2014	382.7		548.4		433.6		579.4
2013	371.7		523.0		379.4		551.2
Net Income - Omnicom Group Inc.
2014	205.5		325.2		243.8		329.5
2013	205.1		289.5		196.0		300.5
Net Income Per Share Omnicom Group Inc. - Basic
2014	0.78		1.24		0.95		1.30
2013	0.76		1.09		0.74		1.14
Net Income Per Share Omnicom Group Inc. - Diluted
2014	0.77		1.23		0.95		1.30
2013	0.76		1.09		0.74		1.13

In the first and second quarters of 2014 and the third and fourth quarters of 2013, we incurred expenses in connection with the proposed merger with Publicis of $7.0 million and $1.8 million and $28.1 million and $13.3 million, respectively, which are primarily comprised of professional fees. On May 8, 2014, the proposed merger was terminated. Excluding the effect of the merger expenses, Operating Income, Net Income - Omnicom Group Inc. and Diluted Net Income per Common Share - Omnicom Group Inc. for the first and second quarters of 2014 were $389.7 million and $550.2 million, $212.3 million and $315.8 million, and $0.80 and $1.20, respectively. Excluding the effect of the merger expenses, Operating Income, Net Income - Omnicom Group Inc. and Diluted Net Income per Common Share - Omnicom Group Inc. for the third and fourth quarters of 2013 were $407.5 million and $564.5 million, $217.7 million and $313.8 million and $0.82 and $1.18, respectively.

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Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Revenue and Long-Lived Assets and Goodwill by Geographic Region

Revenue and long-lived assets and goodwill by geographic region as of and for the three years ended December 31, 2014 were (in millions):

	Americas		EMEA		Asia Pacific
2014
Revenue	$	9,121.3	$	4,594.0	$	1,602.5
Long-lived assets and goodwill	6,157.8		2,800.8		571.6
2013
Revenue	$	8,597.1	$	4,407.4	$	1,580.0
Long-lived assets and goodwill	6,082.6		2,984.6		586.2
2012
Revenue	$	8,375.8	$	4,285.0	$	1,558.6
Long-lived assets and goodwill	6,066.3		2,875.2		626.5

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Business Combinations (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Acquisitions of new subsidiaries	10
Goodwill, Acquisitions	$ 222.4	$ 69.9
Goodwill recorded in acquisitions expected to be deductible for income tax purposes	35.4
Liability for contingent purchase price obligations	300.7	220.2
Liability for contingent purchase price obligations, current	$ 105.5	$ 74.5

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Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 2,388.1	$ 2,710.5
Short-term investments, at cost	2.2	18.2
Accounts receivable, net of allowance for doubtful accounts of $24.9 and $32.6	6,524.7	6,632.6
Work in process	1,166.6	1,288.0
Other current assets	1,108.9	1,003.0
Total Current Assets	11,190.5	11,652.3
Property and Equipment at cost, less accumulated depreciation of $1,221.2 and $1,230.1	708.0	737.4
Equity Method Investments	148.2	131.8
Goodwill	8,822.2	8,916.0
Intangible Assets, net of accumulated amortization of $611.4 and $552.3	389.4	386.0
Other Assets	301.4	275.2
TOTAL ASSETS	21,559.7	22,098.7
Current Liabilities:
Accounts payable	8,165.0	8,358.9
Customer advances	1,180.9	1,242.2
Current portion of debt	0.4	0.4
Short-term borrowings	7.2	5.9
Taxes payable	301.1	293.3
Other current liabilities	2,406.5	2,377.0
Total Current Liabilities	12,061.1	12,277.7
Long-Term Notes Payable	4,562.6	3,780.7
Convertible Debt	0	252.7
Long-Term Liabilities	774.3	685.1
Long-Term Deferred Tax Liabilities	654.7	832.6
Commitments and Contingent Liabilities (See Note 17)
Temporary Equity - Redeemable Noncontrolling Interests	185.7	202.0
Shareholders’ Equity:
Preferred stock, $1.00 par value, 7.5 million shares authorized, none issued	0	0
Common stock, $0.15 par value, 1.0 billion shares authorized, 397.2 million shares issued, 246.7 million and 257.6 million shares outstanding	59.6	59.6
Additional paid-in capital	818.6	817.1
Retained earnings	9,576.9	8,961.2
Accumulated other comprehensive income (loss)	(618.2)	(191.6)
Treasury stock, at cost, 150.5 million and 139.6 million shares	(6,986.9)	(6,063.9)
Total Shareholders’ Equity	2,850.0	3,582.4
Noncontrolling interests	471.3	485.5
Total Equity	3,321.3	4,067.9
TOTAL LIABILITIES AND EQUITY	$ 21,559.7	$ 22,098.7

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Noncontrolling Interests (Tables)

12 Months Ended

Dec. 31, 2014

Noncontrolling Interests [Abstract]

Changes in Ownership Interests in Less than 100% Owned Subsidiaries

Changes in our ownership interests in our less than 100% owned subsidiaries during the three years ended December 31, 2014 were (in millions):

	2014			2013			2012
Net income attributed to Omnicom Group Inc.	$	1,104.0		$	991.1		$	998.3
Transfers (to) from noncontrolling interests:
Increase in additional paid-in capital from sale of shares in noncontrolling interests	6.3			5.2			2.6
Decrease in additional paid-in capital from purchase of shares in noncontrolling interests	(70.8		)	(22.0		)	(30.7		)
Net transfers (to) from noncontrolling interests	(64.5		)	(16.8		)	(28.1		)
Change from net income attributed to Omnicom Group Inc. and        transfers (to) from noncontrolling interests	$	1,039.5		$	974.3		$	970.2

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Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Unrealized gain on available-for-sale securities, income taxes	$ 0.2	$ 0.2	$ 0.2
Foreign currency translation adjustment, income taxes	(227.9)	(62.3)	41.3
Defined benefit pension and postemployment plans adjustment, income taxes	$ (15.5)	$ 14.1	$ (14.5)

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Share-Based Compensation Plans (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based employee compensation expense	$ 93.5	$ 86.3	$ 80.8
Unamortized share-based employee compensation, amortization period	5 years
Unamortized share-based employee compensation	210.1
Option Activity [Roll Forward]
January 1	2,643,680	5,590,880	18,301,409
Granted	60,000	60,000	60,000
Exercised	(1,046,540)	(3,021,200)	(12,673,529)
(Forfeited) reinstated	(5,000)	14,000	(97,000)
December 31	1,652,140	2,643,680	5,590,880
Exercisable December 31	1,526,140	2,505,680	5,333,880
January 1, Weighted Average Exercise Price	$ 26.39	$ 25.72	$ 26.22
Granted, Weighted Average Exercise Price	$ 66.16	$ 70.68	$ 49.65
Exercised, Weighted Average Exercise Price	$ 26.19	$ 26.01	$ 26.47
(Forfeited) reinstated, Weighted Average Exercise Price	$ 23.40	$ 23.40	$ 35.98
December 31, Weighted Average Exercise Price	$ 27.97	$ 26.39	$ 25.72
Exercisable December 31, Weighted Average Exercise Price	$ 24.95	$ 24.67	$ 24.89
Options Outstanding and Exercisable [Abstract]
Options Outstanding, Shares	1,652,140
Options Exercisable, Shares	1,526,140
Black-Scholes Assumptions and Weighted Average Fair Value Per Share for Options Granted [Abstract]
Expected option lives	5 years	5 years	5 years
Risk free interest rate	1.40%	1.40%	0.80%
Expected volatility	22.30%	26.00%	29.50%
Dividend yield	3.00%	2.00%	3.10%
Weighted average fair value per option granted	$ 10.50	$ 14.50	$ 10.42
Exercise Price Range - $23.40 to $29.99
Options Outstanding and Exercisable [Abstract]
Range of Exercise Prices, lower range limit	$ 23.40
Range of Exercise Prices, upper range limit	$ 29.99
Options Outstanding, Shares	1,437,140
Options Outstanding, Weighted Average Remaining Contractual Life	4 years 91 days
Options Outstanding, Weighted Average Exercise Price	$ 23.40
Options Exercisable, Shares	1,437,140
Options Exercisable, Weighted Average Exercise Price	$ 23.40
Exercise Price Range - $30.00 to $44.99
Options Outstanding and Exercisable [Abstract]
Range of Exercise Prices, lower range limit	$ 30.00
Range of Exercise Prices, upper range limit	$ 44.99
Options Outstanding, Shares	41,000
Options Outstanding, Weighted Average Remaining Contractual Life	6 years 42 days
Options Outstanding, Weighted Average Exercise Price	$ 41.57
Options Exercisable, Shares	41,000
Options Exercisable, Weighted Average Exercise Price	$ 41.57
Exercise Price Range - $45.00 to $59.99
Options Outstanding and Exercisable [Abstract]
Range of Exercise Prices, lower range limit	$ 45.00
Range of Exercise Prices, upper range limit	$ 59.99
Options Outstanding, Shares	54,000
Options Outstanding, Weighted Average Remaining Contractual Life	7 years 187 days
Options Outstanding, Weighted Average Exercise Price	$ 49.32
Options Exercisable, Shares	30,000
Options Exercisable, Weighted Average Exercise Price	$ 49.05
Exercise Price Range - $60.00 to $70.68
Options Outstanding and Exercisable [Abstract]
Range of Exercise Prices, lower range limit	$ 60.00
Range of Exercise Prices, upper range limit	$ 70.68
Options Outstanding, Shares	120,000
Options Outstanding, Weighted Average Remaining Contractual Life	9 years 133 days
Options Outstanding, Weighted Average Exercise Price	$ 68.42
Options Exercisable, Shares	18,000
Options Exercisable, Weighted Average Exercise Price	$ 70.68
Stock Options [Member]
Share-based employee compensation, terms of award	The exercise price of stock option awards may not be less than 100% of the market price of our common stock on the grant date and the option term cannot exceed ten years from the grant date.
Share-based employee compensation, vesting rights	Typically, stock option awards vest 30% per year in the first two years and are fully vested three years from grant date.
Restricted Stock [Member]
Share-based employee compensation, vesting rights	Restricted shares typically vest 20% per year and are fully vested five years from the grant date provided the employee remains employed by us.
Restricted Stock and PRSU Activity [Roll Forward]
January 1	6,090,697	7,241,490	6,038,978
Granted	915,922	706,900	2,515,127
Vested	(1,619,444)	(1,490,786)	(981,737)
Forfeited	(346,534)	(366,907)	(330,878)
December 31	5,040,641	6,090,697	7,241,490
Restricted Stock and PRSU Activity, Weighted Average Grant Date Fair Value [Roll Forward]
January 1, Weighted Average Grant Date Fair Value	$ 47.47	$ 45.34
Granted, Weighted Average Grant Date Fair Value	$ 64.92	$ 60.98	$ 49.55
December 31, Weighted Average Grant Date Fair Value	$ 50.98	$ 47.47	$ 45.34
Performance Restricted Stock Units (PRSUs) [Member]
Share-based employee compensation, vesting rights	Each PRSU represents the right to receive one share of common stock on vesting. The ultimate number of PRSUs received by the employee depends on the Company's average return on equity over a three year period compared to the average return on equity of a peer group of four principal competitors over the same period. The PRSUs granted in 2011 (“2011 PRSUs”) vest over five years and all other PRSUs vest over three years.
Restricted Stock and PRSU Activity [Roll Forward]
January 1	681,555	538,948	413,909
Granted	188,621	183,998	166,426
Vested	(165,562)	(41,391)	(41,387)
Forfeited	(81,755)	0	0
December 31	622,859	681,555	538,948
Restricted Stock and PRSU Activity, Weighted Average Grant Date Fair Value [Roll Forward]
January 1, Weighted Average Grant Date Fair Value	$ 51.19	$ 48.74	$ 48.56
Granted, Weighted Average Grant Date Fair Value	$ 69.89	$ 57.77	$ 49.13
Distributed, Weighted Average Grant Date Fair Value	$ 48.56	$ 48.56	$ 48.56
Forfeited, Weighted Average Grant Date Fair Value	$ 61.76	$ 0.00	$ 0.00
December 31, Weighted Average Grant Date Fair Value	$ 56.16	$ 51.19	$ 48.74
Employee Stock Purchase Plan [Member]
Shares available for grant	9,078,083
Employee Stock Purchase Plan (ESPP) [Abstract]
Discount from market price	95.00%
Maximum percentage of eligible compensation allowable for purchase	10.00%
Shares issued in period	113,293	175,002	189,307
Proceeds from issuance of shares	$ 8.0	$ 9.9	$ 8.6
2013 Incentive Award Plan [Member]
Maximum of shares available for issuance	33,000,000
Stock awards other than options, conversion ratio	3.5
Shares available for grant	32,671,988
Stock awards other than options, shares available for grant	9,334,854

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Leases (Policies)

12 Months Ended

Dec. 31, 2014

Leases [Abstract]

Leases, Policy

We lease substantially all our office space under operating leases and certain equipment under operating and capital leases that expire at various dates. Certain office leases contain renewal options. In circumstances where the exercise of the renewal option is reasonably assured at the inception of the lease, the renewal period is included in the determination of the lease term. Office leases may also include scheduled rent increases and concessions, such as rent abatements and landlord incentives and tenant improvement allowances. Scheduled rent increases are recognized on a straight-line basis over the lease term and concessions are recorded as deferred rent and are amortized to rent expense on a straight-line basis over the lease term. Certain office leases require payment of real estate taxes and other occupancy costs. These costs are not included in rent expense. Leasehold improvements made at inception or during the lease term are amortized over the shorter of the asset life or the lease term, which may include renewal periods where the renewal is reasonably assured.

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Temporary Equity - Redeemable Noncontrolling Interests (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Redeemable noncontrolling interest	$ 185.7	$ 202.0
Redeemable noncontrolling interests, currently exercisable	$ 96.7

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Supplemental Cash Flow Data

12 Months Ended

Dec. 31, 2014

Supplemental Cash Flow Data [Abstract]

Supplemental Cash Flow Data

Supplemental Cash Flow Data

The change in operating capital for the three years ended December 31, 2014 was (in millions):

	2014			2013			2012
(Increase) decrease in accounts receivable	$	(227.1	)	$	244.8		$	(218.7	)
(Increase) decrease in work in process and other current assets	(24.2		)	(354.5		)	4.8
Increase (decrease) in accounts payable	161.8			143.5			127.8
Increase (decrease) in customer advances and other current liabilities	45.5			252.6			(151.8		)
Change in other assets and liabilities, net	(62.2		)	64.9			263.1
	$	(106.2	)	$	351.3		$	25.2
Income taxes paid	$	610.1		$	472.4		$	321.1
Interest paid	$	188.6		$	192.8		$	165.5

In June 2014, we issued 1,217,112 shares of our common stock to satisfy the conversion premium in connection with the conversion of the 2032 Notes (see Note 7). Based on the closing prices of our common stock on the settlement dates, these issuances resulted in a non-cash pretax financing activity of $89.2 million, excluding the cash tax benefit of $32.2 million.

In May 2013, we issued 1,499,792 shares of our common stock to satisfy the conversion premium in connection with the conversion of the 2033 Notes and the 2038 Notes (see Note 7). Based on the closing prices of our common stock on the settlement dates, these issuances resulted in a non-cash pretax financing activity of $95.4 million, excluding the cash tax benefit of $34.5 million.

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Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Significant Accounting Policies [Abstract]

Components of Operating Expenses

Operating expenses for the three years ended December 31, 2014 were (in millions):

	2014		2013		2012
Salary and service costs	$	11,350.0	$	10,724.4	$	10,406.8
Office and general expenses	2,023.7		2,034.8		2,008.4
	$	13,373.7	$	12,759.2	$	12,415.2

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Leases

12 Months Ended

Dec. 31, 2014

Leases [Abstract]

Leases

Leases

We lease substantially all our office space under operating leases and certain equipment under operating and capital leases that expire at various dates. Certain office leases contain renewal options. In circumstances where the exercise of the renewal option is reasonably assured at the inception of the lease, the renewal period is included in the determination of the lease term. Office leases may also include scheduled rent increases and concessions, such as rent abatements and landlord incentives and tenant improvement allowances. Scheduled rent increases are recognized on a straight-line basis over the lease term and concessions are recorded as deferred rent and are amortized to rent expense on a straight-line basis over the lease term. Certain office leases require payment of real estate taxes and other occupancy costs. These costs are not included in rent expense. Leasehold improvements made at inception or during the lease term are amortized over the shorter of the asset life or the lease term, which may include renewal periods where the renewal is reasonably assured.

Rent expense for the three years ended December 31, 2014 was (in millions):

	2014			2013			2012
Office base rent	$	373.1		$	379.9		$	390.5
Third party sublease rent	(11.2		)	(10.6		)	(10.4		)
Net office rent	361.9			369.3			380.1
Equipment rent	27.9			33.1			36.3
	$	389.8		$	402.4		$	416.4

Future minimum lease payments under non-cancelable operating leases, reduced by third party sublease rent receivable from existing non-cancelable subleases, and capital leases are (in millions):

	Operating Leases			Capital Leases
2015	$	351.3		$	24.0
2016	247.4			16.1
2017	194.4			9.0
2018	153.5			4.4
2019	133.7			3.1
Thereafter	529.0			2.1
Minimum lease payments	1,609.3			58.7
Sublease rent	(13.9		)
Net rent	$	1,595.4
Interest component				(1.5		)
Present value of minimum lease payments				$	57.2

Property under capital lease and capital lease obligations as of December 31, 2014 and 2013 were (in millions):

	2014			2013
Property under capital lease:
Cost	$	146.3		$	134.0
Accumulated depreciation	(90.6		)	(80.5		)
	$	55.7		$	53.5
Capital lease obligations:
Current	$	23.2		$	22.2
Long-term	34.0			33.2
	$	57.2		$	55.4

Depreciation expense for property under capital lease was $26.1 million, $26.4 million and $25.9 million in 2014, 2013 and 2012, respectively.

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Changes in Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
January 1	$ (191.6)	$ (129.5)
Other comprehensive income (loss) before reclassifications	(403.3)	(83.1)
Amounts reclassified from accumulated other comprehensive income (loss)	(23.3)	21.0
Other comprehensive income (loss)	(426.6)	(62.1)
December 31	(618.2)	(191.6)
Unrealized Gain (Loss) on Available-for-Sale Securities
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
January 1	(1.6)	(2.0)
Other comprehensive income (loss) before reclassifications	0.4	0.4
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Other comprehensive income (loss)	0.4	0.4
December 31	(1.2)	(1.6)
Defined Benefit Pension and Postemployment Plans
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
January 1	(68.8)	(89.8)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	(23.3)	21.0
Other comprehensive income (loss)	(23.3)	21.0
December 31	(92.1)	(68.8)
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	6.4	5.5
Actuarial (gains) losses	3.2	5.0
Net periodic benefit cost (see Note 12)	9.6	10.5
Income taxes	3.8	4.2
Periodic benefit cost, net of income tax	5.8	6.3
Foreign Currency Translation
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
January 1	(121.2)	(37.7)
Other comprehensive income (loss) before reclassifications	(403.7)	(83.5)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Other comprehensive income (loss)	(403.7)	(83.5)
December 31	$ (524.9)	$ (121.2)

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Consolidated Statements of Equity (USD $) In Millions	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total Shareholders’ Equity	Noncontrolling Interests
Balance at Dec. 31, 2011	$ 3,979.8	$ 59.6	$ 1,043.5	$ 7,724.1	$ (191.7)	$ (5,131.2)	$ 3,504.3	$ 475.5
Balance, shares at Dec. 31, 2011		397.2
Net Income	1,117.5			998.3			998.3	119.2
Other comprehensive income (loss)	58.9				62.2		62.2	(3.3)
Dividends to noncontrolling interests	(98.4)							(98.4)
Acquisition of noncontrolling interests	(49.3)		(28.1)				(28.1)	(21.2)
Increase in noncontrolling interests from business combinations	23.7							23.7
Change in temporary equity	4.7		4.7				4.7
Common stock dividends declared	(328.0)			(328.0)			(328.0)
Share-based compensation	80.8		80.8				80.8
Stock issued, share-based compensation	303.1		(264.3)			567.4	303.1
Repurchases of common stock	(1,136.5)					(1,136.5)	(1,136.5)
Balance at Dec. 31, 2012	3,956.3	59.6	836.6	8,394.4	(129.5)	(5,700.3)	3,460.8	495.5
Balance, shares at Dec. 31, 2012		397.2
Net Income	1,111.6			991.1			991.1	120.5
Other comprehensive income (loss)	(99.2)				(62.1)		(62.1)	(37.1)
Dividends to noncontrolling interests	(100.6)							(100.6)
Acquisition of noncontrolling interests	(25.0)		(16.8)				(16.8)	(8.2)
Increase in noncontrolling interests from business combinations	15.4							15.4
Change in temporary equity	(3.6)		(3.6)				(3.6)
Shares issued for conversion of convertible notes	34.5		(34.3)			68.8	34.5
Common stock dividends declared	(424.3)			(424.3)			(424.3)
Share-based compensation	86.3		86.3				86.3
Stock issued, share-based compensation	91.8		(51.1)			142.9	91.8
Repurchases of common stock	(575.3)					(575.3)	(575.3)
Balance at Dec. 31, 2013	4,067.9	59.6	817.1	8,961.2	(191.6)	(6,063.9)	3,582.4	485.5
Balance, shares at Dec. 31, 2013		397.2
Net Income	1,233.1			1,104.0			1,104.0	129.1
Other comprehensive income (loss)	(465.3)				(426.6)		(426.6)	(38.7)
Dividends to noncontrolling interests	(111.3)							(111.3)
Acquisition of noncontrolling interests	(92.3)		(64.5)				(64.5)	(27.8)
Increase in noncontrolling interests from business combinations	34.5							34.5
Change in temporary equity	7.9		7.9				7.9
Shares issued for conversion of convertible notes	32.2		(25.5)			57.7	32.2
Common stock dividends declared	(488.3)			(488.3)			(488.3)
Share-based compensation	93.5		93.5				93.5
Stock issued, share-based compensation	72.4		(9.9)			82.3	72.4
Repurchases of common stock	(1,063.0)					(1,063.0)	(1,063.0)
Balance at Dec. 31, 2014	$ 3,321.3	$ 59.6	$ 818.6	$ 9,576.9	$ (618.2)	$ (6,986.9)	$ 2,850.0	$ 471.3
Balance, shares at Dec. 31, 2014		397.2

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Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Allowance for doubtful accounts	$ 24.9	$ 32.6
Accumulated depreciation	1,221.2	1,230.1
Intangible assets, accumulated amortization	$ 611.4	$ 552.3
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	7,500,000	7,500,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.15	$ 0.15
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	397,200,000	397,200,000
Common stock, shares outstanding	246,700,000	257,600,000
Treasury stock, shares	150,500,000	139,600,000

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Segment Reporting

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Segment Reporting

Segment Reporting

Our five branded agency networks operate in the advertising, marketing and corporate communications services industry, and are organized into agency networks, virtual client networks, regional reporting units and operating groups. The agency networks' regional reporting units comprise three principal regions; the Americas, EMEA and Asia Pacific. The regional reporting units monitor the performance and are responsible for the agencies in their region. Agencies within the regional reporting units serve similar clients in similar industries and in many cases the same clients and 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 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 region as of and for the three years ended December 31, 2014 were (in millions):

	Americas		EMEA		Asia Pacific
2014
Revenue	$	9,121.3	$	4,594.0	$	1,602.5
Long-lived assets and goodwill	6,157.8		2,800.8		571.6
2013
Revenue	$	8,597.1	$	4,407.4	$	1,580.0
Long-lived assets and goodwill	6,082.6		2,984.6		586.2
2012
Revenue	$	8,375.8	$	4,285.0	$	1,558.6
Long-lived assets and goodwill	6,066.3		2,875.2		626.5

The Americas comprises North America, which includes the United States, Canada and Puerto Rico, and Latin America, which includes Mexico. EMEA comprises the United Kingdom, various Euro currency countries, other European countries that have not adopted the European Union Monetary standard, the Middle East and Africa. Asia Pacific comprises Australia, China, India, Japan, Korea, New Zealand, Singapore and other Asian countries. Revenue in the United States was $8,152.7 million, $7,569.7 million and $7,363.7 million in 2014, 2013 and 2012, respectively.

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Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Jan. 30, 2015	Jun. 30, 2014
Entity 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-K
Document Period End Date	Dec. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		246,720,508
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 17,860,780,000

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Equity Method Investments

12 Months Ended

Dec. 31, 2014

Equity Method Investments [Abstract]

Equity Method Investments

Equity Method Investments

Income (loss) from our equity method investments was $16.2 million, $15.9 million and $(15.0) million in 2014, 2013 and 2012, respectively and our proportionate share in their net assets was $49.0 million and $48.4 million, at December 31, 2014 and 2013, respectively. Our equity method investments are not material to our results of operations or financial position; therefore, summarized financial information is not required to be presented.

In 2013 and 2012, we recorded a net impairment charge of $10.7 million and $29.2 million, respectively, to reduce the carrying value of our equity investment in Egypt to fair value. The civil unrest in Egypt, which began in 2012 and continued into 2013, affected the financial condition and business prospects of our equity investment and we determined that an other-than-temporary impairment had occurred. Accordingly, we recorded an impairment charge in 2013 and 2012 to reflect the reduction in value to our equity investment and record it at fair value at December 31, 2013 and 2012, respectively. The measurement of fair value was based on significant unobservable estimates and assumptions (Level 3 inputs), including expected discounted cash flows. The estimates and assumptions included a weighted average cost of capital of 27% and 22% in 2013 and 2012, respectively, and an expected long-term growth rate of 5% for both years. The impairment charges are included in income (loss) from equity method investments in our income statement. In 2014, the financial condition and business prospects of our equity investment stabilized. Therefore, we determined that there has been no further decline in the fair value of our equity investment below carrying value.

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Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue	$ 15,317.8	$ 14,584.5	$ 14,219.4
Operating Expenses	13,373.7	12,759.2	12,415.2
Operating Income	1,944.1	1,825.3	1,804.2
Interest Expense	177.2	197.2	179.7
Interest Income	43.1	32.8	35.1
Income Before Income Taxes and Income (Loss) From Equity Method Investments	1,810.0	1,660.9	1,659.6
Income Tax Expense	593.1	565.2	527.1
Income (Loss) From Equity Method Investments	16.2	15.9	(15.0)
Net Income	1,233.1	1,111.6	1,117.5
Net Income Attributed To Noncontrolling Interests	129.1	120.5	119.2
Net Income - Omnicom Group Inc.	$ 1,104.0	$ 991.1	$ 998.3
Net Income Per Share - Omnicom Group Inc.:
Basic	$ 4.27	$ 3.73	$ 3.64
Diluted	$ 4.24	$ 3.71	$ 3.61
Dividends Declared Per Common Share	$ 1.90	$ 1.60	$ 1.20

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Net Income per Common Share

12 Months Ended

Dec. 31, 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 years ended December 31, 2014 were (in millions, except per share amounts):

	2014			2013			2012
Net Income Available for Common Shares:
Net income - Omnicom Group Inc.	$	1,104.0		$	991.1		$	998.3
Net income allocated to participating securities	(20.4		)	(25.1		)	(22.5		)
	$	1,083.6		$	966.0		$	975.8
Weighted Average Shares:
Basic	253.9			258.9			268.3
Dilutive stock options and restricted shares	1.4			1.5			1.7
Diluted	255.3			260.4			270.0
Anti-dilutive stock options and restricted shares	0.6			0.7			0.3
Net Income per Common Share - Omnicom Group Inc.:
Basic	$	4.27		$	3.73		$	3.64
Diluted	$	4.24		$	3.71		$	3.61

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Significant Accounting Policies

12 Months Ended

Dec. 31, 2014

Significant Accounting Policies [Abstract]

Significant Accounting Policies

Significant Accounting Policies

Revenue Recognition. We recognize revenue in accordance with FASB Accounting Standards Codification (“FASB ASC”) Topic 605, Revenue Recognition, and applicable SEC Staff Accounting Bulletins. Substantially all of our revenue is derived from fees for services based on a rate per hour or equivalent basis. Revenue is realized when the service is performed in accordance with the client arrangement and upon the completion of the earnings process. Prior to recognizing revenue, persuasive evidence of an arrangement must exist, the sales price must be fixed or determinable, delivery, performance and acceptance must be in accordance with the client arrangement and collection must be reasonably assured. These principles are the foundation of our revenue recognition policy and apply to all client arrangements in each of our service disciplines: advertising, customer relationship management, public relations and specialty communications. Certain of our businesses earn a portion of their revenue as commissions based on performance in accordance with client arrangements. Because the services that we provide across each of our disciplines are similar and delivered to clients in similar ways, all of the key elements of our revenue recognition policy apply to client arrangements in each of our four disciplines. Revenue is recorded net of sales, use and value added taxes.

In the majority of our businesses, we act as an agent and record revenue equal to the net amount retained when the fee or commission is earned. Although we may bear credit risk with respect to these activities, the arrangements with our clients are such that we act as an agent on their behalf. In these cases, costs incurred with third-party suppliers are excluded from our revenue. In certain arrangements, we act as principal and we contract directly with third-party suppliers and media providers and production companies and we are responsible for payment. In these circumstances, revenue is recorded at the gross amount billed since revenue has been earned for the sale of goods or services.

Some of our client arrangements include performance incentive provisions designed to link a portion of our revenue to our performance relative to quantitative and qualitative goals. We recognize performance incentives in revenue when specific quantitative goals are achieved, or when our performance against qualitative goals is determined by the client.

Operating Expenses. Operating expenses are comprised of 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 costs consist of rent and occupancy costs, technology costs, depreciation and amortization and other overhead expenses. In 2014 and 2013 we incurred $8.8 million and $41.4 million, respectively, of expenses in connection with the proposed merger with Publicis Groupe S.A. (“Publicis”), which were primarily comprised of professional fees. On May 8, 2014, the proposed merger was terminated (see Note 5).

Operating expenses for the three years ended December 31, 2014 were (in millions):

	2014		2013		2012
Salary and service costs	$	11,350.0	$	10,724.4	$	10,406.8
Office and general expenses	2,023.7		2,034.8		2,008.4
	$	13,373.7	$	12,759.2	$	12,415.2

Cash and Cash Equivalents. Highly liquid investments consisting of interest-bearing time deposits with original maturities of three months or less are classified as cash equivalents. 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.

Short-Term Investments. 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. Short-term investments are carried at cost, which approximates fair value.

Work in Process. Work in process consists of costs incurred on behalf of clients in providing advertising, marketing and corporate communications services, including media and production costs, and fees that have not yet been billed. Media and production costs are billed during the production process and fees are normally billed within the next 30 days.

Property and Equipment. Property and equipment are carried at cost less accumulated depreciation. Depreciation is provided on a straight-line basis over the estimated useful lives of the assets ranging from seven to ten years for furniture and three to five years for equipment. Leasehold improvements are amortized on a straight-line basis over the shorter of the related lease term or the estimated useful life of the asset. Property under capital lease is depreciated on a straight-line basis over the lease term.

Equity Method Investments. Investments in non-public companies in which we own less than a 50% equity interest and where we exercise significant influence over the operating and financial policies of the investee are accounted for using the equity method of accounting. Our proportionate share of the net income or loss of the equity method investments is included in our results of operations and dividends received reduce the carrying value of our investment. The excess of the cost of our investment over our proportionate share of the fair value of the net assets of the investee at the acquisition date is recognized as goodwill and included in the carrying amount of the investment. Goodwill in our equity method investments is not amortized. We periodically review the carrying value of these investments to determine if there has been an other-than-temporary decline in carrying value. A variety of factors are considered when determining if a decline in carrying value is other-than-temporary, including, among others, the financial condition and business prospects of the investee, as well as our investment intent.

Cost Method Investments. Investments in non-public companies in which we own less than a 20% equity interest and where we do not exercise significant influence over the operating and financial policies of the investee are accounted for using the cost method of accounting. We periodically review the carrying value of these investments to determine if there has been an other-than-temporary decline in fair value below carrying value. A variety of factors are considered when determining if a decline in fair value below carrying value is other-than-temporary, including, among others, the financial condition and business prospects of the investee, as well as our investment intent. Cost method investments are carried at cost, which approximates or is less than fair value and are included in other assets in our balance sheet. The carrying value of our cost method investments was $21.8 million and $22.2 million at December 31, 2014 and 2013, respectively.

Available-for-Sale Securities. Investments in publicly traded equity securities are classified as available-for-sale securities. These investments are carried at fair value using quoted market prices and are included in other assets in our balance sheet. Unrealized gains and losses are recorded as a component of accumulated other comprehensive income. The carrying value of the available-for-sale securities was $4.9 million at December 31, 2014 and 2013, respectively.

Goodwill and Intangible Assets. Goodwill represents the excess of the acquisition cost over the fair value of the net assets acquired. Goodwill is not amortized, but is periodically reviewed for impairment. Identifiable intangible assets, which consist primarily of customer relationships, including the related customer contracts and trade names, are amortized over their estimated useful lives ranging from five to ten years. We consider a number of factors in determining the useful lives and amortization method, including the pattern in which the economic benefits are consumed, as well as trade name recognition and customer attrition. No residual value is estimated for the identified intangible assets.

We review the carrying value of goodwill for impairment annually at the end of the second quarter of the year and whenever events or circumstances indicate the carrying value may not be recoverable. There is a two-step test for goodwill impairment. In Step 1, we compare the fair value of each reporting unit to its carrying value, including goodwill. If the fair value of the reporting unit is equal to or greater than its carrying value, goodwill is not impaired and no further testing is required. If the carrying value exceeds fair value, then Step 2 of the impairment test is performed in order to determine if the implied fair value of the reporting unit’s goodwill exceeds the carrying value of that goodwill. Goodwill is impaired when the carrying value of a reporting unit's goodwill exceeds the implied fair value of its goodwill. Impaired goodwill is written down to its implied fair value with a charge recorded in results of operations in the period the impairment is identified.

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 monitor the performance and 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 had 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. 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 costs. 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. 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 of EBITDA (earnings before interest, taxes, depreciation and amortization) and (3) when available, consideration of recent and similar acquisition transactions.

Based on the results of the annual impairment test, we concluded that our goodwill at June 30, 2014 and 2013 was not impaired because the fair value of each of our reporting units were substantially in excess of their respective net book value. Subsequent to the annual impairment test of goodwill at June 30, 2014, there were no events or circumstances that triggered the need for an interim impairment test.

Temporary Equity - Redeemable Noncontrolling Interests. Owners of noncontrolling equity interests in some of our subsidiaries have the right in certain circumstances to require us to purchase all or a portion of their equity interests at fair value as defined in the applicable agreements. The intent of the parties is to approximate fair value at the time of redemption by using a multiple of earnings that is consistent with generally accepted valuation practices used by market participants in our industry. These contingent redemption rights are embedded in the equity security at issuance, are not free-standing instruments, do not represent a de facto financing and are not under our control.

Treasury Stock. Repurchases of our common stock are accounted for at cost. Reissued treasury shares, primarily in connection with share-based compensation plans, are accounted for at average cost. Gains or losses on reissued treasury shares are recorded in additional paid-in capital and do not affect results of operations.

Business Combinations. Business combinations are accounted for using the acquisition method and, accordingly, the assets acquired, including identified intangible assets, the liabilities assumed and any noncontrolling interest in the acquired business are recorded at their acquisition date fair values. In circumstances where control is obtained and less than 100% of an entity is acquired, we record 100% of the goodwill acquired. Acquisition-related costs, including advisory, legal, accounting, valuation and other costs are expensed as incurred. Certain of our acquisitions include an initial payment at closing and provide for future additional contingent purchase price payments (earn-outs). Contingent purchase price obligations are recorded as a liability at the acquisition date fair value using the discount rate in affect at the acquisition date. Subsequent changes in the fair value of the liability are recorded in our results of operations. Generally, there is no cap on the amount that can be earned under the contingent purchase price arrangements and payments are not contingent upon future employment. The results of operations of acquired businesses are included in our results of operations from the acquisition date.

Subsidiary and Equity Investment Stock Transactions. Transactions involving the purchase, sale or issuance of stock of a subsidiary where control is maintained are recorded as an increase or decrease in additional paid-in capital. Gains and losses from transactions involving subsidiary stock where control is lost are recorded in results of operations. Gains and losses from transactions involving stock of an equity investment are recorded in results of operations until control is achieved. In circumstances where the purchase of shares of an equity investment results in obtaining control, the existing carrying value of the investment is remeasured to the acquisition date fair value and any gain or loss is recognized in results of operations.

Foreign Currency Translation and Transactions. Substantially all of our foreign subsidiaries use their local currency as their functional currency. Assets and liabilities are translated into U.S. Dollars at the exchange rate on the balance sheet date and revenue and expenses are translated at the average exchange rate for the period. The impact of the translation adjustments is recorded as a component of accumulated other comprehensive income. Net foreign currency transaction gains (losses) recorded in results of operations were $8.7 million, $2.7 million and $(2.7) million in 2014, 2013 and 2012, respectively.

Share-Based Compensation. Share-based compensation, arising from restricted stock and stock option awards, is measured at the grant date fair value. The fair value of restricted stock awards is determined and fixed on the grant date using the closing price of our common stock. The fair value of the restricted stock awards is recorded in additional paid-in capital and is amortized to expense over the restriction period. We use the Black-Scholes option valuation model to determine the fair value of stock option awards. For awards that have a service only vesting condition, we recognize share-based compensation expense on a straight-line basis over the requisite service periods. For awards with a performance vesting condition, we recognize share-based compensation expense on a graded-vesting basis. See Note 10 for additional information regarding our specific award plans and estimates and assumptions used to determine the fair value of our share-based compensation awards.

Salary Continuation Agreements. Arrangements with certain present and former employees provide for continuing payments for periods up to ten years after cessation of full-time employment in consideration for agreement by the employees not to compete with us and to render consulting services during the postemployment period. Such payments which are subject to certain limitations, including our operating performance during the postemployment period, represent the fair value of the services rendered and are expensed in such periods.

Severance. The liability for one-time termination benefits, such as severance pay or benefit payouts, is measured and recognized at fair value in the period the liability is incurred. Subsequent changes to the liability are recognized in results of operations in the period of change.

Defined Benefit Pension Plans and Postemployment Arrangements. We record the funded status of our defined benefit plans in our balance sheet. Funded status is the difference between the fair value of plan assets and the benefit obligation at December 31, the measurement date, determined on a plan-by-plan basis. The benefit obligation for the defined benefit plans is the projected benefit obligation (“PBO”), which represents the actuarial present value of benefits expected to be paid upon retirement based on estimated future compensation levels. The fair value of plan assets represents the current market value. Overfunded plans where the fair value of plan assets exceeds the benefit obligation are aggregated and recorded as a prepaid pension asset equal to the excess. Underfunded plans where the benefit obligation exceeds the fair value of plan assets are aggregated and recorded as a liability equal to the excess. The liability for our postemployment arrangements is recorded in our balance sheet. The benefit obligation of our postemployment arrangements is the PBO and these arrangements are not funded. The current portion of the benefit obligation for our defined benefit plans and postemployment arrangements represents the actuarial present value of benefits payable in the next twelve months that exceed the fair value of plan assets. This current obligation is recorded in other current liabilities and the long-term portion is recorded in long-term liabilities in our balance sheet.

Deferred Compensation. Some of our subsidiaries have individual deferred compensation arrangements with certain executives that provide for payments over varying terms upon retirement, cessation of employment or death. The cost of these arrangements is accrued during the employee’s service period.

Income Taxes. We use the asset and liability method of accounting for income taxes. Under this method, income tax expense is recognized for the amount of taxes payable for the current period and deferred taxes recognized during the period. Deferred income taxes are recognized for the temporary difference between the financial reporting basis and tax basis of our assets and liabilities. Deferred income taxes are measured using the enacted tax rates that are assumed to be in effect when the differences reverse. Deferred tax assets result principally from recording expenses in the financial statements which are not currently deductible for tax purposes, such as share-based compensation expense, tax loss and credit carryforwards and differences between the tax basis and book basis of assets and liabilities recorded in connection with acquisitions. Deferred tax liabilities result principally from expenses from financial instruments which are currently deductible for tax purposes but have not been expensed in the financial statements, basis differences arising from deductible goodwill and intangible assets and tax rate differentials on unremitted foreign earnings. Valuation allowances are recorded where it is more likely than not that all or a portion of a deferred tax asset will not be realized. In assessing the need for a valuation allowance, we evaluate factors such as prior earnings history, expected future earnings, carry-back and carry-forward periods and tax strategies that could potentially enhance the likelihood of the realization of a deferred tax asset.

We have provided U.S. income taxes on earnings of foreign subsidiaries and affiliates that have not been indefinitely reinvested. However, we have not provided U.S. federal and state income taxes on cumulative earnings of foreign subsidiaries that have been indefinitely reinvested. Interest and penalties related to tax positions taken in our tax returns are recorded in income tax expense.

Net Income Per Common Share. Net income per common share is based on the weighted average number of common shares outstanding during each period. Diluted net income per common share is based on the weighted average number of common shares outstanding, plus, if dilutive, common share equivalents, which include outstanding stock options and restricted stock.

Net income per common share is calculated using the two-class method, which is an earnings allocation method for computing net income per common share when a company's capital structure includes common stock and participating securities. The majority of the unvested restricted stock awards receive non-forfeitable dividends at the same rate as our common stock and therefore are considered participating securities. Under the two-class method, basic and diluted net income per common share is reduced for a presumed hypothetical distribution of earnings to holders of the unvested restricted stock receiving non-forfeitable dividends.

Concentration of 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 we grant credit to qualified clients in the normal course of business. 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 2.6% of revenue in 2014 and no other client accounted for more than 2.5% of revenue.

Derivative Financial Instruments. All derivative instruments, including certain derivative instruments embedded in other contracts, are recorded in our balance sheet at fair value as either an asset or liability. Derivatives qualify for hedge accounting if: (1) the hedging instrument is designated as a hedge at inception, (2) the hedged exposure is specifically identifiable and exposes us to risk and (3) a change in fair value of the derivative financial instrument and an opposite change in the fair value of the hedged exposure will have a high degree of correlation. The method of assessing hedge effectiveness and measuring hedge ineffectiveness is formally documented at hedge inception. Hedge effectiveness is assessed and hedge ineffectiveness is measured at least quarterly throughout the designated hedge period. If the derivative is a hedge, depending on the nature of the hedge, changes in the fair value of the derivative will either be offset against the change in fair value of the hedged asset, liability or firm commitment through earnings or recognized in other comprehensive income until the hedged item is recognized in earnings. The ineffective portion of the change in fair value of a derivative used as hedge is recognized in results of operations. We do not use derivative financial instruments for trading or speculative purposes.

Fair Value. We apply the fair value measurement guidance of FASB ASC Topic 820, Fair Value Measurements and Disclosures, for our financial assets and liabilities that are required to be measured at fair value and for our nonfinancial assets and liabilities that are not required to be measured at fair value on a recurring basis, including goodwill and other identifiable intangible assets. The measurement of fair value requires the use of techniques based on observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our market assumptions. The inputs create the following fair value hierarchy:

• Level 1 - Quoted prices for identical instruments in active markets.

• Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations where inputs are observable or where significant value drivers are observable.

• Level 3 - Instruments where significant value drivers are unobservable to third parties.

When available, we use quoted market prices to determine the fair value of our financial instruments and classify such items in Level 1. In some cases, we use quoted market prices for similar instruments in active markets and model-derived valuations. These items are classified in Level 2.

In determining the fair value of financial instruments, we consider certain market valuation adjustments that market participants would consider in determining fair value, including: counterparty credit risk adjustments applied to financial instruments, taking into account the actual credit risk of the counterparty as observed in the credit default swap market and credit risk adjustments applied to reflect our own credit risk when valuing liabilities measured at fair value. 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.

Reclassifications. Certain reclassifications have been made to the prior year financial information to conform to the current year presentation.

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Noncontrolling Interests

12 Months Ended

Dec. 31, 2014

Noncontrolling Interests [Abstract]

Noncontrolling Interests

Noncontrolling Interests

Changes in our ownership interests in our less than 100% owned subsidiaries during the three years ended December 31, 2014 were (in millions):

	2014			2013			2012
Net income attributed to Omnicom Group Inc.	$	1,104.0		$	991.1		$	998.3
Transfers (to) from noncontrolling interests:
Increase in additional paid-in capital from sale of shares in noncontrolling interests	6.3			5.2			2.6
Decrease in additional paid-in capital from purchase of shares in noncontrolling interests	(70.8		)	(22.0		)	(30.7		)
Net transfers (to) from noncontrolling interests	(64.5		)	(16.8		)	(28.1		)
Change from net income attributed to Omnicom Group Inc. and        transfers (to) from noncontrolling interests	$	1,039.5		$	974.3		$	970.2

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Share-Based Compensation Plans

12 Months Ended

Dec. 31, 2014

Share-Based Compensation Plans [Abstract]

Share-Based Compensation Plans

Share-Based Compensation Plans

Share-based incentive awards are provided to employees under the 2013 Incentive Award Plan (“2013 Plan”). The 2013 Plan is administered by the Compensation Committee of the Board of Directors (“Compensation Committee”), and awards under the plan include stock options, restricted stock and other stock awards. The maximum number of shares of common stock that can be granted under the 2013 Plan is 33 million shares plus any shares awarded under the 2013 Plan and any prior plan that are forfeited or expired. Stock option awards reduce the number of shares available for grant on a one-for-one basis. All other awards reduce the number of shares available for grant by 3.5 shares for every one share of common stock awarded. The terms of each award and the exercise date are determined by the Compensation Committee. The 2013 Plan does not permit the holder of an award to elect cash settlement under any circumstances. At December 31, 2014, there were 32,671,988 shares available for grant under the 2013 Plan. If all shares available for grant were for awards other than stock options, shares available for grant would be 9,334,854.

Share-based compensation expense was $93.5 million, $86.3 million and $80.8 million in 2014, 2013 and 2012, respectively. At December 31, 2014, unamortized share-based compensation that will be expensed over the next five years is $210.1 million. We record a deferred tax asset for share-based compensation expense recognized for financial reporting that has not been deducted on our income tax return. If the actual tax deduction exceeds the deferred tax asset, the difference is recorded in additional paid-in capital (“APIC Pool”). If the actual tax deduction is less than the deferred tax asset and no APIC Pool exists, the difference is recorded in results of operations. To the extent that future tax deductions for share-based compensation are less than the deferred tax assets resulting from recording book share-based compensation expense, we expect to have a sufficient pool of excess tax benefits within the APIC Pool available to offset any potential future shortfall.

Stock Options

The exercise price of stock option awards may not be less than 100% of the market price of our common stock on the grant date and the option term cannot exceed ten years from the grant date.Typically, stock option awards vest 30% per year in the first two years and are fully vested three years from grant date. Generally, stock option exercises are settled with treasury shares.

Stock option activity for the three years ended December 31, 2014 was:

	2014			2013			2012
	Shares		Weighted Average Exercise Price	Shares		Weighted Average Exercise Price	Shares		Weighted Average Exercise Price
January 1	2,643,680		$26.39	5,590,880		$25.72	18,301,409		$26.22
Granted	60,000		$66.16	60,000		$70.68	60,000		$49.65
Exercised	(1,046,540	)	$26.19	(3,021,200	)	$26.01	(12,673,529	)	$26.47
(Forfeited) reinstated	(5,000	)	$23.40	14,000		$23.40	(97,000	)	$35.98
December 31	1,652,140		$27.97	2,643,680		$26.39	5,590,880		$25.72
Exercisable December 31	1,526,140		$24.95	2,505,680		$24.67	5,333,880		$24.89

Options outstanding and exercisable at December 31, 2014 were:

			Options Outstanding			Options Exercisable
Range of Exercise Prices			Shares	Weighted Average Remaining Contractual Life	Weighted Average Exercise Price	Shares	Weighted Average Exercise Price
$23.40	to	$29.99	1,437,140	4.2 years	$23.40	1,437,140	$23.40
$30.00	to	$44.99	41,000	6.1 years	$41.57	41,000	$41.57
$45.00	to	$59.99	54,000	7.5 years	$49.32	30,000	$49.05
$60.00	to	$70.68	120,000	9.4 years	$68.42	18,000	$70.68
			1,652,140			1,526,140

The fair value of each grant was determined on the grant date using the Black-Scholes option valuation model. The Black-Scholes assumptions (without adjusting for the risk of forfeiture and lack of liquidity) and the weighted average fair value per share for options granted were:

	2014	2013	2012
Expected option lives	5 years	5 years	5 years
Risk free interest rate	1.4%	1.4%	0.8%
Expected volatility	22.3%	26.0%	29.5%
Dividend yield	3.0%	2.0%	3.1%
Weighted average fair value per option granted	$10.50	$14.50	$10.42

Restricted Stock

Restricted stock activity for the three years ended December 31, 2014 was:

	2014		2013		2012
January 1	6,090,697		7,241,490		6,038,978
Granted	915,922		706,900		2,515,127
Vested	(1,619,444	)	(1,490,786	)	(981,737	)
Forfeited	(346,534	)	(366,907	)	(330,878	)
December 31	5,040,641		6,090,697		7,241,490
Weighted average grant date fair value of shares granted in the period	$64.92		$60.98		$49.55
Weighted average grant date fair value at December 31	$50.98		$47.47		$45.34

Restricted shares typically vest 20% per year and are fully vested five years from the grant date provided the employee remains employed by us. Restricted shares may not be sold, transferred, pledged or otherwise encumbered until the forfeiture restrictions lapse. Under most circumstances, the employee forfeits the shares if employment ceases prior to the end of the restriction period.

Performance Restricted Stock Units

The Compensation Committee grants certain employees performance restricted stock units (“PRSUs”). Each PRSU represents the right to receive one share of common stock on vesting. The ultimate number of PRSUs received by the employee depends on the Company's average return on equity over a three year period compared to the average return on equity of a peer group of four principal competitors over the same period. The PRSUs granted in 2011 (“2011 PRSUs”) vest over five years and all other PRSUs vest over three years. One half of the 2011 PRSUs have a service only vesting condition and compensation expense is recognized on a straight-line basis over the service period. The other half of the 2011 PRSUs and all other PRSUs have a service and performance vesting condition and compensation expense is recognized on a graded-vesting basis. Over the performance period, the recognition of compensation expense is adjusted upward or downward based on our estimate of the probability of achievement of the performance target for the portion of the awards subject to the performance vesting condition. We assume that substantially all the PRSUs subject to the service and performance condition will vest.

PRSU activity of the three years ended December 31, 2014 was:

	2014				2013				2012
	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
January 1	681,555		$	51.19	538,948		$	48.74	413,909		48.56
Granted	188,621		69.89		183,998		57.77		166,426		$	49.13
Distributed	(165,562	)	48.56		(41,391	)	48.56		(41,387	)	48.56
Forfeited	(81,755	)	61.76		—		—		—		—
December 31	622,859		$	56.16	681,555		$	51.19	538,948		$	48.74

The 2011 PRSUs subject to the service only vesting condition are distributed as they vest. The 2011 PRSUs subject to the service and performance condition are distributed, based on the vesting schedule, upon achieving the performance target. All other PRSUs subject to the service and performance conditions are distributed upon achieving the performance target. All shares distributed to date relate to the 2011 PRSUs.

ESPP

We have an employee stock purchase plan (“ESPP”) that enables employees to purchase our common stock through payroll deductions over each plan quarter at 95% of the market price on the last trading day of the plan quarter. Purchases are limited to 10% of eligible compensation as defined by the Employee Retirement Income Security Act of 1974 (“ERISA”). Employees purchased 113,293 shares, 175,002 shares and 189,307 shares in 2014, 2013 and 2012, respectively, all of which were treasury shares, for which $8.0 million, $9.9 million and $8.6 million, respectively, was paid to us. At December 31, 2014, 9,078,083 shares are available for the ESPP.

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Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and Intangible Assets

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

	2014						2013
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Goodwill	$	9,377.6	$	555.4	$	8,822.2	$	9,502.6	$	586.6	$	8,916.0
Intangible assets:
Purchased and internally developed software	$	298.7	$	221.4	$	77.3	$	283.2	$	217.4	$	65.8
Customer related and other	702.1		390.0		312.1		655.1		334.9		320.2
	$	1,000.8	$	611.4	$	389.4	$	938.3	$	552.3	$	386.0

Changes in goodwill for the years ended December 31, 2014 and 2013 were (in millions):

	2014			2013
January 1	$	8,916.0		$	8,844.2
Acquisitions	222.4			69.9
Dispositions	(3.0		)	(8.5		)
Foreign currency translation	(313.2		)	10.4
December 31	$	8,822.2		$	8,916.0

There were no goodwill impairment losses recorded in 2014 or 2013 and there are no accumulated goodwill impairment losses. Goodwill for acquisitions completed in 2014 and 2013 includes $43.5 million and $12.2 million, respectively, of goodwill attributed to noncontrolling interests in the acquired businesses.

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Income Taxes (Details) (USD $)	12 Months Ended			24 Months Ended
	Dec. 31, 2014 Rate	Dec. 31, 2013 Rate	Dec. 31, 2012	Dec. 31, 2010
Income Before Income Taxes [Abstract]
Income before income taxes, Domestic	$ 739,900,000	$ 629,400,000	$ 683,500,000
Income before income taxes, International	1,070,100,000	1,031,500,000	976,100,000
Income Before Income Taxes and Income (Loss) From Equity Method Investments	1,810,000,000	1,660,900,000	1,659,600,000
Income Tax Expense [Abstract]
Income tax expense, current, Federal	356,100,000	246,300,000	163,300,000
Income tax expense, current, State and local	38,100,000	30,600,000	40,100,000
Income tax expense, current, International	344,800,000	336,500,000	298,300,000
Income tax expense, current	739,000,000	613,400,000	501,700,000
Income tax expense, deferred, Federal	(106,400,000)	300,000	41,700,000
Income tax expense, deferred, State and local	(2,300,000)	(3,600,000)	4,700,000
Income tax expense, deferred, International	(37,200,000)	(44,900,000)	(21,000,000)
Income tax expense, deferred	(145,900,000)	(48,200,000)	25,400,000
Income tax expense	593,100,000	565,200,000	527,100,000
Reconciliation from the Statutory U.S. Federal Income Tax Rate to Effective Tax Rate [Abstract]
Statutory U.S. federal income tax rate	35.00%	35.00%	35.00%
State and local income taxes, net of federal income tax benefit	1.30%	1.00%	1.70%
Reduction of tax on unremitted foreign earnings due to legal reorganization	0.00%	0.00%	(1.30%)
International tax rate differentials	(3.30%)	(3.00%)	(3.30%)
Other	(0.20%)	1.00%	(0.30%)
Effective tax rate	32.80%	34.00%	31.80%
Income tax benefit, merger expenses	11,400,000	6,500,000
Effective tax rate, excluding merger expenses	33.20%	33.60%
Reduction of income tax expense			53,000,000
Increase in income tax expense			16,000,000
Unrecognized Tax Benefits, Penalties and Interest [Abstract]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	1,700,000	1,600,000	2,500,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	14,200,000	11,500,000
Deferred tax assets:
Compensation and severance	311,900,000	269,800,000
Tax loss and credit carryforwards	95,600,000	149,100,000
Basis differences from acquisitions	38,000,000	28,700,000
Basis differences from short-term assets and liabilities	27,800,000	28,200,000
Other	33,000,000	53,200,000
Deferred tax assets	506,300,000	529,000,000
Valuation allowance	(34,100,000)	(56,800,000)
Net deferred tax assets	472,200,000	472,200,000
Deferred tax liabilities:
Goodwill and intangible assets	706,100,000	673,300,000
Financial instruments	263,100,000	421,800,000
Unremitted foreign earnings	51,100,000	114,500,000
Basis differences from investments	(4,200,000)	(5,700,000)
Deferred tax liabilities	1,016,100,000	1,203,900,000
Net deferred tax assets (liabilities)	(543,900,000)	(731,700,000)
Net deferred tax assets and (liabilities), classified [Abstract]
Other current assets - deferred taxes	110,800,000	100,900,000
Long-term deferred tax liabilities	(654,700,000)	(832,600,000)
Cumulative undistributed earnings of certain foreign subsidiaries indefinitely reinvested	1,800,000,000
Cumulative undistributed earnings of certain foreign subsidiaries not deemed to be indefinitely reinvested	1,800,000,000
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
January 1	137,800,000	188,600,000
Current year tax positions	6,000,000	5,100,000
Prior year tax positions	1,000,000	400,000
Reduction of prior year tax positions	500,000	(31,400,000)
Settlements	(800,000)	(24,600,000)
Lapse of statute of limitations	(2,900,000)	(200,000)
Foreign currency translation	(1,800,000)	(100,000)
December 31	139,800,000	137,800,000	188,600,000
Unrecognized tax benefits that would impact effective tax rate	58,600,000	58,700,000
Convertible Debt [Member]
Net deferred tax assets and (liabilities), classified [Abstract]
Convertible debt, repayments of convertible debt				1,400,000,000
Convertible debt, repayments of convertible debt, deferred tax liability				329,000,000
Taxes paid, cancellation of indebtedness income for debt reacquired	66,000,000
Convertible Notes due July 31, 2032
Net deferred tax assets and (liabilities), classified [Abstract]
Taxes paid, conversion of convertible debt	66,200,000
Convertible debt, adjustment to additional paid-in capital	32,200,000
2033 Notes and 2038 Notes [Member]
Net deferred tax assets and (liabilities), classified [Abstract]
Taxes paid, conversion of convertible debt		52,700,000
Convertible debt, adjustment to additional paid-in capital		$ 34,500,000
Minimum [Member]
Net deferred tax assets and (liabilities), classified [Abstract]
Tax loss and credit carryforwards, expiration dates	Dec. 31, 2019
Maximum [Member]
Net deferred tax assets and (liabilities), classified [Abstract]
Tax loss and credit carryforwards, expiration dates	Dec. 31, 2035

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Business Combinations

12 Months Ended

Dec. 31, 2014

Business Combinations [Abstract]

Business Combinations

Business Combinations

In 2014, we completed 10 acquisitions of new subsidiaries and made additional investments in companies in which we had an existing minority ownership interest. Goodwill increased $222.4 million in 2014. Approximately $35.4 million of the goodwill recorded in connection with the 2014 acquisitions is expected to be deductible for income tax purposes. We also acquired additional equity in certain of our majority owned subsidiaries. These transactions are accounted for as equity transactions and no additional goodwill was recorded. None of the acquisitions, individually or in aggregate, in 2014 was material to our results of operations or financial position.

The valuation of the acquired businesses is based on a number of factors, including specialized know-how, reputation, geographic coverage, competitive position and service offerings, 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 area and/or their service capabilities to better serve our clients. Consistent with our acquisition strategy and past practice, certain of our acquisitions include an initial payment at closing and provide for future additional contingent purchase price payments (earn-outs). Contingent purchase price payments are derived using the performance of the acquired entity and are based on predetermined formulas. The liability for contingent purchase price obligations was $300.7 million and $220.2 million at December 31, 2014 and 2013, respectively, of which $105.5 million and $74.5 million, respectively, is included in other current liabilities in our balance sheet.

For each acquisition, we undertake a detailed review to identify other intangible assets and a valuation is performed for all such identified assets. We use several market participant measurements to determine fair value. This approach includes consideration of similar and recent transactions, as well as utilizing discounted expected cash flow methodologies and when available and as appropriate, we use comparative market multiples to supplement our analysis. As is typical for most service businesses, a substantial portion of the intangible asset value we acquire is the specialized know-how of the workforce, which is treated as part of goodwill and is not valued separately. 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 executing our acquisition strategy, one of the primary drivers in identifying and executing a specific transaction is the existence of, or the ability to, expand our existing client relationships. The expected benefits of our acquisitions are typically shared across multiple agencies and regions.

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Termination of Business Combination Agreement

12 Months Ended

Dec. 31, 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 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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Debt

12 Months Ended

Dec. 31, 2014

Debt [Abstract]

Debt

Debt

Credit Lines

On July 31, 2014, we amended our $2.5 billion credit line (“Credit Agreement”) to extend the term to July 31, 2019. We have the ability to classify borrowings under the Credit Agreement as long-term. Additionally, we can issue up to $2.0 billion of commercial paper. At December 31, 2014 and 2013, there were no outstanding commercial paper issuances or borrowings under the Credit Agreement. We also have uncommitted credit lines aggregating $937.8 million and $1.1 billion at December 31, 2014 and 2013, respectively.

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

	2014		2013
Credit Agreement	$	2,500.0	$	2,500.0
Uncommitted credit lines	937.8		1,051.5
Available and unused credit lines	$	3,437.8	$	3,551.5

The Credit Agreement contains financial covenants that require us to maintain a Leverage Ratio of consolidated indebtedness to consolidated EBITDA to 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 December 31, 2014 we were in compliance with these covenants, as our Leverage Ratio was 2.0 times and our Interest Coverage Ratio was 12.6 times. The Credit Agreement does not limit our ability to declare or pay dividends or repurchase our common stock.

Short-Term Borrowings

Short-term borrowings of $7.2 million and $5.9 million at December 31, 2014 and 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. At December 31, 2014 and 2013, the weighted average interest rate on these borrowings was 6.0% and 5.6%, respectively.

Long-Term Notes Payable

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

	2014			2013
5.9% Senior Notes due 2016	$	1,000.0		$	1,000.0
6.25% Senior Notes due 2019	500.0			500.0
4.45% Senior Notes due 2020	1,000.0			1,000.0
3.625% Senior Notes due 2022	1,250.0			1,250.0
3.65% Senior Notes due 2024	750.0			—
Other notes and loans	0.5			0.5
	4,500.5			3,750.5
Unamortized premium (discount) on Senior Notes, net	11.1			14.7
Adjustment to carrying value for interest rate swaps	51.4			15.9
	4,563.0			3,781.1
Current portion of debt	(0.4		)	(0.4		)
Long-term notes payable	$	4,562.6		$	3,780.7

In October 2014, we issued $750 million principal amount of 3.65% Senior Notes due 2024. The proceeds from the issuance were $747.6 million before deducting underwriting commissions and offering expenses.

Omnicom Capital Inc. (“OCI”), our wholly-owned finance subsidiary, together with us, is a co-obligor of all the Senior Notes. The Senior Notes are a joint and several liability of us and OCI, and we unconditionally guarantee OCI’s obligations with respect to the Senior Notes. OCI provides funding for our operations by incurring debt and lending the proceeds to our operating subsidiaries. OCI’s assets consist of cash and cash equivalents and intercompany loans made to our operating subsidiaries and the related interest receivable. There are no restrictions on the ability of OCI or us to obtain funds from our subsidiaries through dividends, loans or advances. Our Senior Notes are senior unsecured obligations that rank in equal right of payment with all existing and future unsecured senior indebtedness.

On May 1, 2014, we entered into a fixed-to-floating interest rate swap on the $1.25 billion principal amount of the 3.625% Senior Notes due 2022 (“2022 Notes”) and on September 29, 2014, we entered into a fixed-to-floating interest rate swap on the $1 billion principal amount of the 4.45 % Senior Notes due 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 swap agreements, we receive fixed interest rate payments equal to the coupon interest rate on the 2022 Notes and the 2020 Notes and pay a variable interest rate on the total principal amount of the notes, equal to three month LIBOR in arrears, plus a spread of 1.05% on the 2022 Notes and a spread of 2.16% on the 2020 Notes. The swaps qualify and are designated as fair value hedges for accounting purposes. 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 attributed to changes in the benchmark interest rate. The net interest settlement is recorded in interest expense. At December 31, 2014, we recorded a receivable, which is included in other assets, of $42.7 million representing the fair value of the swaps that was substantially offset by the increase in the carrying value of the 2022 Notes and the 2020 Notes reflecting the change in fair value of the notes. Accordingly, any hedge ineffectiveness was not material to our results of operations.

Convertible Debt

At December 31, 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 outstanding 2032 Notes for redemption on July 31, 2014 at a redemption price of 100% of the principal amount of the 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 and 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.

On May 16, 2013, we called the outstanding Convertible Notes due 2033 (“2033 Notes”) and the Convertible Notes due 2038 (“2038 Notes”) for redemption on June 17, 2013 at a redemption price of 100% of the principal amount. Prior to June 13, 2013, the noteholders had the right to convert their notes into shares of our common stock at a conversion rate of 19.4174 shares per $1,000 principal amount. Substantially all noteholders exercised their conversion right and we paid $406.1 million in cash representing the principal amount of the notes that were converted and issued 1,499,792 shares of our common stock to satisfy the conversion premium. On June 17, 2013, we redeemed any 2033 Notes and 2038 Notes that were not converted.

Interest Expense

The components of interest expense for the three years ended December 31, 2014 were (in millions):

	2014		2013		2012
Long-term notes payable	$	155.0	$	174.7	$	156.2
Commercial paper	2.9		1.7		1.3
Fees	6.2		6.5		6.2
Other	13.1		14.3		16.0
	$	177.2	$	197.2	$	179.7

Maturities

The maturities of our long-term notes payable at December 31, 2014 are (in millions):

2015	$	0.4
2016	1,000.1
2017	—
2018	—
2019	500.0
Thereafter	3,000.0
	$	4,500.5

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Leases (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Rent Expense [Abstract]
Rent expense, net	$ 389.8	$ 402.4	$ 416.4
Future Minimum Lease Payments Under Non-Cancelable Operating Leases [Abstract]
Operating Leases, Minimum lease payments, 2015	351.3
Operating Leases, Minimum lease payments, 2016	247.4
Operating Leases, Minimum lease payments, 2017	194.4
Operating Leases, Minimum lease payments, 2018	153.5
Operating Leases, Minimum lease payments, 2019	133.7
Operating Leases, Minimum lease payments, Thereafter	529.0
Operating Leases, Minimum lease payments	1,609.3
Operating Leases, Minimum lease payments, Sublease rent	(13.9)
Operating Leases, Minimum lease payments, Net rent	1,595.4
Future Minimum Lease Payments Under Non-Cancelable Capital Leases [Abstract]
Capital Leases, Minimum lease payments, 2015	24.0
Capital Leases, Minimum lease payments, 2016	16.1
Capital Leases, Minimum lease payments, 2017	9.0
Capital Leases, Minimum lease payments, 2018	4.4
Capital Leases, Minimum lease payments, 2019	3.1
Capital Leases, Minimum lease payments, Thereafter	2.1
Capital Leases, Minimum lease payments	58.7
Capital Leases, Minimum lease payments, Interest component	(1.5)
Capital Leases, Minimum lease payments, Present value of minimum lease payments	57.2
Property Under Capital Lease and Capital Lease Obligations [Abstract]
Property under capital lease, Cost	146.3	134.0
Property under capital lease, Accumulated depreciation	(90.6)	(80.5)
Property under capital lease	55.7	53.5
Capital lease obligations, Current	23.2	22.2
Capital lease obligations, Long-term	34.0	33.2
Capital lease obligations	57.2	55.4
Property under capital lease, Depreciation expense	26.1	26.4	25.9
Office [Member]
Rent Expense [Abstract]
Office base rent	373.1	379.9	390.5
Third party sublease rent	(11.2)	(10.6)	(10.4)
Rent expense, net	361.9	369.3	380.1
Equipment [Member]
Rent Expense [Abstract]
Rent expense, net	$ 27.9	$ 33.1	$ 36.3

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Fair Value (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Assets:
Cash and cash equivalents	$ 2,388.1	$ 2,710.5
Short-term investments	2.2	18.2
Available-for-sale securities	4.9	4.9
Interest rate and foreign currency derivative instruments	43.1	2.2
Cost method investments	21.8	22.2
Liabilities:
Short-term borrowings	7.2	5.9
Foreign currency derivative instruments	0.4	0.1
Contingent interest derivative	0	2.1
Contingent purchase price obligations	300.7	220.2
Debt	4,754.9	4,302.7
Contingent purchase price obligations
Changes in Level 3 Contingent Purchase Price Obligations [Roll Forward]
January 1	220.2	266.2
Acquisitions	167.1	35.8
Revaluation and interest	11.0	(10.9)
Payments	(83.2)	(70.5)
Foreign currency translation	(14.4)	(0.4)
December 31	300.7	220.2
Carrying Amount
Assets:
Cash and cash equivalents	2,388.1	2,710.5
Short-term investments	2.2	18.2
Available-for-sale securities	4.9	4.9
Interest rate and foreign currency derivative instruments	43.1	2.2
Cost method investments	21.8	22.2
Liabilities:
Short-term borrowings	7.2	5.9
Foreign currency derivative instruments	0.4	0.1
Contingent interest derivative	0	2.1
Contingent purchase price obligations	300.7	220.2
Debt	4,563.0	4,033.8
Fair Value, Measurements, Recurring [Member]
Assets:
Cash and cash equivalents	2,388.1	2,710.5
Short-term investments	2.2	18.2
Available-for-sale securities	4.9	4.9
Interest rate and foreign currency derivative instruments	43.1
Foreign currency derivative instruments		2.2
Liabilities:
Foreign currency derivative instruments	0.4	0.1
Contingent interest derivative		2.1
Contingent purchase price obligations	300.7	220.2
Fair Value, Measurements, Recurring [Member] | Level 1
Assets:
Cash and cash equivalents	2,388.1	2,710.5
Short-term investments	2.2	18.2
Available-for-sale securities	4.9	4.9
Fair Value, Measurements, Recurring [Member] | Level 2
Assets:
Interest rate and foreign currency derivative instruments	43.1
Foreign currency derivative instruments		2.2
Liabilities:
Foreign currency derivative instruments	0.4	0.1
Contingent interest derivative		2.1
Fair Value, Measurements, Recurring [Member] | Level 3
Liabilities:
Contingent purchase price obligations	$ 300.7	$ 220.2

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Noncontrolling Interests (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Changes in Ownership Interests in Less Than 100% Owned Subsidiaries [Abstract]
Net income attributed to Omnicom Group Inc.	$ 329.5	$ 243.8	$ 325.2	$ 205.5	$ 300.5	$ 196.0	$ 289.5	$ 205.1	$ 1,104.0	$ 991.1	$ 998.3
Increase in additional paid-in capital from sale of shares in noncontrolling interests									6.3	5.2	2.6
Decrease in additional paid-in capital from purchase of shares in noncontrolling interests									(70.8)	(22.0)	(30.7)
Net transfers (to) from noncontrolling interests									(64.5)	(16.8)	(28.1)
Change from net income attributed to Omnicom Group Inc. and transfers (to) from noncontrolling interests									$ 1,039.5	$ 974.3	$ 970.2

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Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2014

Significant Accounting Policies [Abstract]

Revenue Recognition, Policy

Revenue Recognition. We recognize revenue in accordance with FASB Accounting Standards Codification (“FASB ASC”) Topic 605, Revenue Recognition, and applicable SEC Staff Accounting Bulletins. Substantially all of our revenue is derived from fees for services based on a rate per hour or equivalent basis. Revenue is realized when the service is performed in accordance with the client arrangement and upon the completion of the earnings process. Prior to recognizing revenue, persuasive evidence of an arrangement must exist, the sales price must be fixed or determinable, delivery, performance and acceptance must be in accordance with the client arrangement and collection must be reasonably assured. These principles are the foundation of our revenue recognition policy and apply to all client arrangements in each of our service disciplines: advertising, customer relationship management, public relations and specialty communications. Certain of our businesses earn a portion of their revenue as commissions based on performance in accordance with client arrangements. Because the services that we provide across each of our disciplines are similar and delivered to clients in similar ways, all of the key elements of our revenue recognition policy apply to client arrangements in each of our four disciplines. Revenue is recorded net of sales, use and value added taxes.

In the majority of our businesses, we act as an agent and record revenue equal to the net amount retained when the fee or commission is earned. Although we may bear credit risk with respect to these activities, the arrangements with our clients are such that we act as an agent on their behalf. In these cases, costs incurred with third-party suppliers are excluded from our revenue. In certain arrangements, we act as principal and we contract directly with third-party suppliers and media providers and production companies and we are responsible for payment. In these circumstances, revenue is recorded at the gross amount billed since revenue has been earned for the sale of goods or services.

Some of our client arrangements include performance incentive provisions designed to link a portion of our revenue to our performance relative to quantitative and qualitative goals. We recognize performance incentives in revenue when specific quantitative goals are achieved, or when our performance against qualitative goals is determined by the client.

Operating Expenses, Policy

Operating Expenses. Operating expenses are comprised of 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 costs consist of rent and occupancy costs, technology costs, depreciation and amortization and other overhead expenses. In 2014 and 2013 we incurred $8.8 million and $41.4 million, respectively, of expenses in connection with the proposed merger with Publicis Groupe S.A. (“Publicis”), which were primarily comprised of professional fees. On May 8, 2014, the proposed merger was terminated (see Note 5).

Operating expenses for the three years ended December 31, 2014 were (in millions):

	2014		2013		2012
Salary and service costs	$	11,350.0	$	10,724.4	$	10,406.8
Office and general expenses	2,023.7		2,034.8		2,008.4
	$	13,373.7	$	12,759.2	$	12,415.2

Cash and Cash Equivalents, Policy

Cash and Cash Equivalents. Highly liquid investments consisting of interest-bearing time deposits with original maturities of three months or less are classified as cash equivalents. 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.

Short-Term Investments, Policy

Short-Term Investments. 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. Short-term investments are carried at cost, which approximates fair value.

Work in Process, Policy

Work in Process. Work in process consists of costs incurred on behalf of clients in providing advertising, marketing and corporate communications services, including media and production costs, and fees that have not yet been billed. Media and production costs are billed during the production process and fees are normally billed within the next 30 days.

Available-for-Sale Securities, Policy

Available-for-Sale Securities. Investments in publicly traded equity securities are classified as available-for-sale securities. These investments are carried at fair value using quoted market prices and are included in other assets in our balance sheet. Unrealized gains and losses are recorded as a component of accumulated other comprehensive income. The carrying value of the available-for-sale securities was $4.9 million at December 31, 2014 and 2013, respectively.

Property and Equipment, Policy

Property and Equipment. Property and equipment are carried at cost less accumulated depreciation. Depreciation is provided on a straight-line basis over the estimated useful lives of the assets ranging from seven to ten years for furniture and three to five years for equipment. Leasehold improvements are amortized on a straight-line basis over the shorter of the related lease term or the estimated useful life of the asset. Property under capital lease is depreciated on a straight-line basis over the lease term.

Equity Method Investments, Policy

Equity Method Investments. Investments in non-public companies in which we own less than a 50% equity interest and where we exercise significant influence over the operating and financial policies of the investee are accounted for using the equity method of accounting. Our proportionate share of the net income or loss of the equity method investments is included in our results of operations and dividends received reduce the carrying value of our investment. The excess of the cost of our investment over our proportionate share of the fair value of the net assets of the investee at the acquisition date is recognized as goodwill and included in the carrying amount of the investment. Goodwill in our equity method investments is not amortized. We periodically review the carrying value of these investments to determine if there has been an other-than-temporary decline in carrying value. A variety of factors are considered when determining if a decline in carrying value is other-than-temporary, including, among others, the financial condition and business prospects of the investee, as well as our investment intent.

Cost Method Investments, Policy

Cost Method Investments. Investments in non-public companies in which we own less than a 20% equity interest and where we do not exercise significant influence over the operating and financial policies of the investee are accounted for using the cost method of accounting. We periodically review the carrying value of these investments to determine if there has been an other-than-temporary decline in fair value below carrying value. A variety of factors are considered when determining if a decline in fair value below carrying value is other-than-temporary, including, among others, the financial condition and business prospects of the investee, as well as our investment intent. Cost method investments are carried at cost, which approximates or is less than fair value and are included in other assets in our balance sheet. The carrying value of our cost method investments was $21.8 million and $22.2 million at December 31, 2014 and 2013, respectively

Goodwill and Intangible Assets, Policy

Goodwill and Intangible Assets. Goodwill represents the excess of the acquisition cost over the fair value of the net assets acquired. Goodwill is not amortized, but is periodically reviewed for impairment. Identifiable intangible assets, which consist primarily of customer relationships, including the related customer contracts and trade names, are amortized over their estimated useful lives ranging from five to ten years. We consider a number of factors in determining the useful lives and amortization method, including the pattern in which the economic benefits are consumed, as well as trade name recognition and customer attrition. No residual value is estimated for the identified intangible assets.

We review the carrying value of goodwill for impairment annually at the end of the second quarter of the year and whenever events or circumstances indicate the carrying value may not be recoverable. There is a two-step test for goodwill impairment. In Step 1, we compare the fair value of each reporting unit to its carrying value, including goodwill. If the fair value of the reporting unit is equal to or greater than its carrying value, goodwill is not impaired and no further testing is required. If the carrying value exceeds fair value, then Step 2 of the impairment test is performed in order to determine if the implied fair value of the reporting unit’s goodwill exceeds the carrying value of that goodwill. Goodwill is impaired when the carrying value of a reporting unit's goodwill exceeds the implied fair value of its goodwill. Impaired goodwill is written down to its implied fair value with a charge recorded in results of operations in the period the impairment is identified.

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 monitor the performance and 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 had 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. 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 costs. 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. 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 of EBITDA (earnings before interest, taxes, depreciation and amortization) and (3) when available, consideration of recent and similar acquisition transactions.

Based on the results of the annual impairment test, we concluded that our goodwill at June 30, 2014 and 2013 was not impaired because the fair value of each of our reporting units were substantially in excess of their respective net book value. Subsequent to the annual impairment test of goodwill at June 30, 2014, there were no events or circumstances that triggered the need for an interim impairment test.

Temporary Equity - Redeemable Noncontrolling Interests, Policy

Temporary Equity - Redeemable Noncontrolling Interests. Owners of noncontrolling equity interests in some of our subsidiaries have the right in certain circumstances to require us to purchase all or a portion of their equity interests at fair value as defined in the applicable agreements. The intent of the parties is to approximate fair value at the time of redemption by using a multiple of earnings that is consistent with generally accepted valuation practices used by market participants in our industry. These contingent redemption rights are embedded in the equity security at issuance, are not free-standing instruments, do not represent a de facto financing and are not under our control.

Treasury Stock, Policy

Treasury Stock. Repurchases of our common stock are accounted for at cost. Reissued treasury shares, primarily in connection with share-based compensation plans, are accounted for at average cost. Gains or losses on reissued treasury shares are recorded in additional paid-in capital and do not affect results of operations.

Business Combinations, Policy

Business Combinations. Business combinations are accounted for using the acquisition method and, accordingly, the assets acquired, including identified intangible assets, the liabilities assumed and any noncontrolling interest in the acquired business are recorded at their acquisition date fair values. In circumstances where control is obtained and less than 100% of an entity is acquired, we record 100% of the goodwill acquired. Acquisition-related costs, including advisory, legal, accounting, valuation and other costs are expensed as incurred. Certain of our acquisitions include an initial payment at closing and provide for future additional contingent purchase price payments (earn-outs). Contingent purchase price obligations are recorded as a liability at the acquisition date fair value using the discount rate in affect at the acquisition date. Subsequent changes in the fair value of the liability are recorded in our results of operations. Generally, there is no cap on the amount that can be earned under the contingent purchase price arrangements and payments are not contingent upon future employment. The results of operations of acquired businesses are included in our results of operations from the acquisition date.

Subsidiary and Equity Investment Stock Transactions, Policy

Subsidiary and Equity Investment Stock Transactions. Transactions involving the purchase, sale or issuance of stock of a subsidiary where control is maintained are recorded as an increase or decrease in additional paid-in capital. Gains and losses from transactions involving subsidiary stock where control is lost are recorded in results of operations. Gains and losses from transactions involving stock of an equity investment are recorded in results of operations until control is achieved. In circumstances where the purchase of shares of an equity investment results in obtaining control, the existing carrying value of the investment is remeasured to the acquisition date fair value and any gain or loss is recognized in results of operations.

Foreign Currency Translation and Transactions, Policy

Foreign Currency Translation and Transactions. Substantially all of our foreign subsidiaries use their local currency as their functional currency. Assets and liabilities are translated into U.S. Dollars at the exchange rate on the balance sheet date and revenue and expenses are translated at the average exchange rate for the period. The impact of the translation adjustments is recorded as a component of accumulated other comprehensive income. Net foreign currency transaction gains (losses) recorded in results of operations were $8.7 million, $2.7 million and $(2.7) million in 2014, 2013 and 2012, respectively.

Share-Based Compensation, Policy

Share-Based Compensation. Share-based compensation, arising from restricted stock and stock option awards, is measured at the grant date fair value. The fair value of restricted stock awards is determined and fixed on the grant date using the closing price of our common stock. The fair value of the restricted stock awards is recorded in additional paid-in capital and is amortized to expense over the restriction period. We use the Black-Scholes option valuation model to determine the fair value of stock option awards. For awards that have a service only vesting condition, we recognize share-based compensation expense on a straight-line basis over the requisite service periods. For awards with a performance vesting condition, we recognize share-based compensation expense on a graded-vesting basis. See Note 10 for additional information regarding our specific award plans and estimates and assumptions used to determine the fair value of our share-based compensation awards.

Salary Continuation Agreements, Policy

Salary Continuation Agreements. Arrangements with certain present and former employees provide for continuing payments for periods up to ten years after cessation of full-time employment in consideration for agreement by the employees not to compete with us and to render consulting services during the postemployment period. Such payments which are subject to certain limitations, including our operating performance during the postemployment period, represent the fair value of the services rendered and are expensed in such periods.

Severance, Policy

Severance. The liability for one-time termination benefits, such as severance pay or benefit payouts, is measured and recognized at fair value in the period the liability is incurred. Subsequent changes to the liability are recognized in results of operations in the period of change.

Defined Benefit Pension Plans and Postemployment Arrangements, Policy

Defined Benefit Pension Plans and Postemployment Arrangements. We record the funded status of our defined benefit plans in our balance sheet. Funded status is the difference between the fair value of plan assets and the benefit obligation at December 31, the measurement date, determined on a plan-by-plan basis. The benefit obligation for the defined benefit plans is the projected benefit obligation (“PBO”), which represents the actuarial present value of benefits expected to be paid upon retirement based on estimated future compensation levels. The fair value of plan assets represents the current market value. Overfunded plans where the fair value of plan assets exceeds the benefit obligation are aggregated and recorded as a prepaid pension asset equal to the excess. Underfunded plans where the benefit obligation exceeds the fair value of plan assets are aggregated and recorded as a liability equal to the excess. The liability for our postemployment arrangements is recorded in our balance sheet. The benefit obligation of our postemployment arrangements is the PBO and these arrangements are not funded. The current portion of the benefit obligation for our defined benefit plans and postemployment arrangements represents the actuarial present value of benefits payable in the next twelve months that exceed the fair value of plan assets. This current obligation is recorded in other current liabilities and the long-term portion is recorded in long-term liabilities in our balance sheet.

Deferred Compensation, Policy

Deferred Compensation. Some of our subsidiaries have individual deferred compensation arrangements with certain executives that provide for payments over varying terms upon retirement, cessation of employment or death. The cost of these arrangements is accrued during the employee’s service period.

Income Taxes, Policy

Income Taxes. We use the asset and liability method of accounting for income taxes. Under this method, income tax expense is recognized for the amount of taxes payable for the current period and deferred taxes recognized during the period. Deferred income taxes are recognized for the temporary difference between the financial reporting basis and tax basis of our assets and liabilities. Deferred income taxes are measured using the enacted tax rates that are assumed to be in effect when the differences reverse. Deferred tax assets result principally from recording expenses in the financial statements which are not currently deductible for tax purposes, such as share-based compensation expense, tax loss and credit carryforwards and differences between the tax basis and book basis of assets and liabilities recorded in connection with acquisitions. Deferred tax liabilities result principally from expenses from financial instruments which are currently deductible for tax purposes but have not been expensed in the financial statements, basis differences arising from deductible goodwill and intangible assets and tax rate differentials on unremitted foreign earnings. Valuation allowances are recorded where it is more likely than not that all or a portion of a deferred tax asset will not be realized. In assessing the need for a valuation allowance, we evaluate factors such as prior earnings history, expected future earnings, carry-back and carry-forward periods and tax strategies that could potentially enhance the likelihood of the realization of a deferred tax asset.

We have provided U.S. income taxes on earnings of foreign subsidiaries and affiliates that have not been indefinitely reinvested. However, we have not provided U.S. federal and state income taxes on cumulative earnings of foreign subsidiaries that have been indefinitely reinvested. Interest and penalties related to tax positions taken in our tax returns are recorded in income tax expense.

Net Income Per Common Share, Policy

Net Income Per Common Share. Net income per common share is based on the weighted average number of common shares outstanding during each period. Diluted net income per common share is based on the weighted average number of common shares outstanding, plus, if dilutive, common share equivalents, which include outstanding stock options and restricted stock.

Net income per common share is calculated using the two-class method, which is an earnings allocation method for computing net income per common share when a company's capital structure includes common stock and participating securities. The majority of the unvested restricted stock awards receive non-forfeitable dividends at the same rate as our common stock and therefore are considered participating securities. Under the two-class method, basic and diluted net income per common share is reduced for a presumed hypothetical distribution of earnings to holders of the unvested restricted stock receiving non-forfeitable dividends.

Concentration of Credit Risk, Policy

Concentration of 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 we grant credit to qualified clients in the normal course of business. 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 2.6% of revenue in 2014 and no other client accounted for more than 2.5% of revenue.

Derivative Financial Instruments, Policy

Derivative Financial Instruments. All derivative instruments, including certain derivative instruments embedded in other contracts, are recorded in our balance sheet at fair value as either an asset or liability. Derivatives qualify for hedge accounting if: (1) the hedging instrument is designated as a hedge at inception, (2) the hedged exposure is specifically identifiable and exposes us to risk and (3) a change in fair value of the derivative financial instrument and an opposite change in the fair value of the hedged exposure will have a high degree of correlation. The method of assessing hedge effectiveness and measuring hedge ineffectiveness is formally documented at hedge inception. Hedge effectiveness is assessed and hedge ineffectiveness is measured at least quarterly throughout the designated hedge period. If the derivative is a hedge, depending on the nature of the hedge, changes in the fair value of the derivative will either be offset against the change in fair value of the hedged asset, liability or firm commitment through earnings or recognized in other comprehensive income until the hedged item is recognized in earnings. The ineffective portion of the change in fair value of a derivative used as hedge is recognized in results of operations. We do not use derivative financial instruments for trading or speculative purposes.

Fair Value, Policy

Fair Value. We apply the fair value measurement guidance of FASB ASC Topic 820, Fair Value Measurements and Disclosures, for our financial assets and liabilities that are required to be measured at fair value and for our nonfinancial assets and liabilities that are not required to be measured at fair value on a recurring basis, including goodwill and other identifiable intangible assets. The measurement of fair value requires the use of techniques based on observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our market assumptions. The inputs create the following fair value hierarchy:

• Level 1 - Quoted prices for identical instruments in active markets.

• Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations where inputs are observable or where significant value drivers are observable.

• Level 3 - Instruments where significant value drivers are unobservable to third parties.

When available, we use quoted market prices to determine the fair value of our financial instruments and classify such items in Level 1. In some cases, we use quoted market prices for similar instruments in active markets and model-derived valuations. These items are classified in Level 2.

In determining the fair value of financial instruments, we consider certain market valuation adjustments that market participants would consider in determining fair value, including: counterparty credit risk adjustments applied to financial instruments, taking into account the actual credit risk of the counterparty as observed in the credit default swap market and credit risk adjustments applied to reflect our own credit risk when valuing liabilities measured at fair value. 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.

Reclassifications, Policy

Reclassifications. Certain reclassifications have been made to the prior year financial information to conform to the current year presentation.

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Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Salary and service costs									$ 11,350.0	$ 10,724.4	$ 10,406.8
Office and general expenses									2,023.7	2,034.8	2,008.4
Merger expenses			1.8	7.0	13.3	28.1			8.8	41.4
Operating expenses	3,615.7	3,316.0	3,322.5	3,119.5	3,506.9	3,111.1	3,114.0	3,027.2	13,373.7	12,759.2	12,415.2
Available-for-sale securities	4.9				4.9				4.9	4.9
Cost method investments	21.8				22.2				21.8	22.2
Net foreign currency transaction gains (losses)									$ 8.7	$ 2.7	$ (2.7)
Percentage of revenue from largest client									2.60%
Percentage of revenue from any client other than largest, maximum									2.50%
Minimum [Member]
Identifiable intangible assets, useful life									5 years
Maximum [Member]
Identifiable intangible assets, useful life									10 years
Furniture [Member] | Minimum [Member]
Property and Equipment, useful life									7 years
Furniture [Member] | Maximum [Member]
Property and Equipment, useful life									10 years
Equipment [Member] | Minimum [Member]
Property and Equipment, useful life									3 years
Equipment [Member] | Maximum [Member]
Property and Equipment, useful life									5 years

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Pension and Other Postemployment Benefits

12 Months Ended

Dec. 31, 2014

Pension and Other Postemployment Benefits [Abstract]

Pension and Other Postemployment Benefits

Pension and Other Postemployment Benefits

Defined Contribution Plans

Our domestic and international subsidiaries provide retirement benefits for their employees primarily through defined contribution profit sharing and savings plans. Contributions to these plans vary by subsidiary and have generally been in amounts up to the maximum percentage of total eligible compensation of participating employees that is deductible for income tax purposes. Contribution expense was $108.4 million, $109.3 million and $113.5 million in 2014, 2013 and 2012, respectively.

Defined Benefit Pension Plans

Certain of our subsidiaries sponsor noncontributory defined benefit pension plans. Two of our U.S. businesses and several of our non-U.S. businesses sponsor pension plans. These plans provide benefits to employees based on formulas recognizing length of service and earnings. The U.S. plans cover approximately 1,200 participants, are closed to new participants and do not accrue future benefit credits. The non-U.S. plans, which include plans required by local law, cover approximately 6,500 participants and are not covered by ERISA.

In addition, we have a Senior Executive Restrictive Covenant and Retention Plan (“Retention Plan”) for certain executive officers of Omnicom selected to participate by the Compensation Committee. The Retention Plan is a non-qualified deferred compensation severance plan that was adopted to secure non-competition, non-solicitation, non-disparagement and ongoing consulting services from such executive officers and to strengthen the retention aspect of executive officer compensation. The Retention Plan provides annual payments upon termination following at least seven years of service with Omnicom or its subsidiaries to the participants or to their beneficiaries. A participant’s annual benefit is payable for 15 consecutive calendar years following termination, but in no event prior to age 55. The annual benefit is equal to the lesser of (i) the participant’s final average pay times an applicable percentage, which is based upon the executive’s years of service as an executive officer, not to exceed 35% or (ii) $1.5 million adjusted for cost-of-living, beginning with the second annual payment, not to exceed 2.5% per year. The Retention Plan is unfunded and benefits are paid when due.

The components of net periodic benefit cost for the three years ended December 31, 2014 were (in millions):

	2014			2013			2012
Service cost	$	6.8		$	4.6		$	6.6
Interest cost	8.2			7.3			7.6
Expected return on plan assets	(4.2		)	(3.7		)	(3.5		)
Amortization of prior service cost	4.3			3.6			3.1
Amortization of actuarial (gains) losses	2.3			3.5			1.0
	$	17.4		$	15.3		$	14.8

Included in accumulated other comprehensive income at December 31, 2014 and 2013 were unrecognized actuarial gains and losses and unrecognized prior service cost of $91.0 million, $56.0 million net of tax, and $68.6 million, $42.3 million net of tax, respectively, that have not yet been recognized in net periodic benefit cost. The unrecognized actuarial gains and losses and unrecognized prior service cost included in accumulated other comprehensive income and expected to be recognized in net periodic benefit cost in 2015 is $10.1 million.

The weighted average assumptions used to determine net periodic benefit cost for the three years ended December 31, 2014 were:

	2014		2013		2012
Discount rate	4.5	%	3.9	%	4.6	%
Compensation increases	1.8	%	1.6	%	1.8	%
Expected return on plan assets	5.8	%	5.3	%	6.0	%

The expected long-term rate of return for plan assets for the U.S. plans is based on several factors, including current and expected asset allocations, historical and expected returns on various asset classes and current and future market conditions. A total return investment approach using a mix of equities and fixed income investments maximizes the long-term return. This strategy is intended to minimize plan expense by achieving long-term returns in excess of the growth in plan liabilities over time. The discount rate used to compute net periodic benefit cost is based on yields of available high-quality bonds and reflects the expected cash flow as of the measurement date. The expected returns on plan assets and discount rates for the non-U.S. plans are based on local factors, including each plan’s investment approach, local interest rates and plan participant profiles.

Experience gains and losses and the effects of changes in actuarial assumptions are generally amortized over a period no longer than the expected average future service of active employees.

Our funding policy is to contribute amounts sufficient to meet minimum funding requirements in accordance with the applicable employee benefit and tax laws that the plans are subject to, plus such additional amounts as we may determine to be appropriate. We contributed $3.2 million, $5.5 million, $9.1 million to our defined benefit pension plans in 2014, 2013 and 2012, respectively. We do not expect our 2015 contributions to differ materially from our 2014 contributions.

At December 31, 2014 and 2013, the benefit obligation, fair value of plan assets and funded status of our defined benefit pension plans were (in millions):

	2014			2013
Benefit Obligation:
January 1	$	185.7		$	188.4
Service cost	6.8			4.6
Interest cost	8.2			7.3
Amendments, curtailments and settlements	—			7.6
Actuarial (gains) losses	31.3			(18.0		)
Benefits paid	(5.0		)	(5.1		)
Foreign currency translation and other	(4.3		)	0.9
December 31	$	222.7		$	185.7
Fair Value of Plan Assets:
January 1	$	72.2		$	62.7
Actual return on plan assets	6.5			8.1
Employer contributions	3.2			5.5
Benefits paid	(5.0		)	(5.1		)
Foreign currency translation and other	(2.5		)	1.0
December 31	$	74.4		$	72.2
Funded Status December 31:	$	(148.3	)	$	(113.5	)

At December 31, 2014 and 2013, the funded status was classified as follows (in millions):

	2014			2013
Other assets	$	4.6		$	5.6
Other current liabilities	(4.4		)	(1.1		)
Long-term liabilities	(148.5		)	(118.0		)
	$	(148.3	)	$	(113.5	)

The accumulated benefit obligation for our defined benefit pension plans at December 31, 2014 and 2013, was $210.0 million and $173.0 million, respectively.

At December 31, 2014 and 2013, plans with benefit obligations in excess of plan assets were (in millions):

	2014		2013
Benefit obligation	$	212.0	$	143.1
Plan assets	59.0		24.0
	$	153.0	$	119.1

The weighted average assumptions used to determine the benefit obligation at December 31, 2014 and 2013, were:

	2014		2013
Discount rate	3.5	%	4.4	%
Compensation increases	1.8	%	1.6	%

At December 31, 2014, the estimated benefits expected to be paid over the next 10 years are (in millions):

2015	$	7.6
2016	8.2
2017	9.0
2018	9.3
2019	10.4
2020 - 2024	72.0

The fair value of plan assets at December 31, 2014 and 2013 was (in millions):

2014	Level 1		Level 2		Level 3		Total
Cash	$	2.6					$	2.6
Mutual funds	43.4						43.4
Unit trusts	24.4						24.4
Insurance contracts					$	3.7	3.7
Other			$	0.3			0.3
	$	70.4	$	0.3	$	3.7	$	74.4

2013
Cash	$	2.1					$	2.1
Mutual funds	42.5						42.5
Unit trusts	23.3						23.3
Insurance contracts					$	3.4	3.4
Other			$	0.9			0.9
	$	67.9	$	0.9	$	3.4	$	72.2

Mutual funds and unit trusts are publicly traded and are valued using quoted market prices. The mutual funds and unit trusts include investments in equity and fixed income securities. Insurance contracts primarily consist of guaranteed investment contracts. Other investments primarily consist of commingled short-term investment funds.

Changes in the fair value of plan assets measured using Level 3 inputs at December 31, 2014 and 2013 were (in millions):

	2014		2013
January 1	$	3.4	$	2.9
Actual return on assets	0.1		0.1
Purchases, sales and settlements, net	0.2		0.4
December 31	$	3.7	$	3.4

The weighted average asset allocations at December 31, 2014 and 2013 were:

	2014				2013
	Target Allocation		Actual Allocation		Actual Allocation
Cash	5	%	3	%	3	%
Mutual funds	54	%	58	%	59	%
Unit trusts	33	%	33	%	32	%
Insurance contracts	5	%	5	%	5	%
Other	3	%	1	%	1	%
	100	%	100	%	100	%

Risk tolerance for these plans is established through consideration of plan liabilities, funded status and evaluation of the overall investment environment. The investment portfolios contain a diversified blend of equity and fixed-income investments. Equity investments are diversified across geography and market capitalization through investment in large and medium capitalization U.S. and international equities and U.S. and international debt securities. Investment risk is measured and monitored on an ongoing basis through annual liability measurements, and periodic asset/liability studies and investment portfolio reviews.

Postemployment Arrangements

We have executive retirement agreements under which benefits will be paid to participants or to their beneficiaries over periods up to ten years beginning after cessation of full-time employment. Our postemployment arrangements are unfunded and benefits are paid when due.

The components of net periodic benefit cost for the three years ended December 31, 2014 were (in millions):

	2014		2013		2012
Service cost	$	3.8	$	4.1	$	4.1
Interest cost	4.5		4.3		4.7
Amortization of prior service cost	2.1		1.9		0.7
Amortization of actuarial (gains) losses	0.9		1.5		2.0
	$	11.3	$	11.8	$	11.5

Included in accumulated other comprehensive income at December 31, 2014 and 2013 were unrecognized actuarial gains and losses and unrecognized prior service cost of $60.0 million, $36.0 million net of income taxes, and $44.2 million, $26.5 million net of income taxes, respectively, that have not yet been recognized in the net periodic benefit cost. The unrecognized actuarial gains and losses and unrecognized prior service cost included in accumulated other comprehensive income and expected to be recognized in net periodic benefit cost in 2015 is $4.8 million.

The weighted average assumptions used to determine net periodic benefit cost for the three years ended December 31, 2014 were:

	2014		2013		2012
Discount rate	4.7	%	4.1	%	4.9	%
Compensation increases	3.5	%	3.5	%	3.5	%

Experience gains and losses and effects of changes in actuarial assumptions are amortized over a period no longer than the expected average future service of active employees.

At December 31, 2014 and 2013, the benefit obligation was (in millions):

	2014			2013
January 1	$	104.2		$	118.7
Service cost	3.8			4.1
Interest cost	4.5			4.3
Amendments	7.5			2.8
Actuarial (gains) losses	11.3			(12.3		)
Benefits paid	(9.2		)	(13.4		)
December 31	$	122.1		$	104.2

At December 31, 2014 and 2013, the liability was classified as follows (in millions):

	2014		2013
Other current liabilities	$	8.7	$	9.3
Long-term liabilities	113.4		94.9
	$	122.1	$	104.2

The weighted average assumptions used to determine the benefit obligation at December 31, 2014 and 2013 were:

	2014		2013
Discount rate	3.8	%	4.7	%
Compensation increases	3.5	%	3.5	%

At December 31, 2014, the estimated benefits expected to be paid over the next 10 years are (in millions):

2015	$	8.7
2016	9.0
2017	7.6
2018	7.4
2019	5.7
2020 - 2024	26.9

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Commitments and Contingent Liabilities

12 Months Ended

Dec. 31, 2014

Commitments and Contingent Liabilities [Abstract]

Commitments and Contingent Liabilities

Commitments and Contingent Liabilities

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

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Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2014

Selected Quarterly Financial Data (Unaudited) [Abstract]

Selected Quarterly Financial Data (Unaudited)

The Company’s unaudited selected quarterly financial data for the years ended December 31, 2014 and 2013 were:

	Quarter
	First		Second		Third		Fourth
Revenue
2014	$	3,502.2	$	3,870.9	$	3,749.6	$	4,195.1
2013	3,398.9		3,637.0		3,490.5		4,058.1
Operating Expenses
2014	3,119.5		3,322.5		3,316.0		3,615.7
2013	3,027.2		3,114.0		3,111.1		3,506.9
Operating Income
2014	382.7		548.4		433.6		579.4
2013	371.7		523.0		379.4		551.2
Net Income - Omnicom Group Inc.
2014	205.5		325.2		243.8		329.5
2013	205.1		289.5		196.0		300.5
Net Income Per Share Omnicom Group Inc. - Basic
2014	0.78		1.24		0.95		1.30
2013	0.76		1.09		0.74		1.14
Net Income Per Share Omnicom Group Inc. - Diluted
2014	0.77		1.23		0.95		1.30
2013	0.76		1.09		0.74		1.13

In the first and second quarters of 2014 and the third and fourth quarters of 2013, we incurred expenses in connection with the proposed merger with Publicis of $7.0 million and $1.8 million and $28.1 million and $13.3 million, respectively, which are primarily comprised of professional fees. On May 8, 2014, the proposed merger was terminated. Excluding the effect of the merger expenses, Operating Income, Net Income - Omnicom Group Inc. and Diluted Net Income per Common Share - Omnicom Group Inc. for the first and second quarters of 2014 were $389.7 million and $550.2 million, $212.3 million and $315.8 million, and $0.80 and $1.20, respectively. Excluding the effect of the merger expenses, Operating Income, Net Income - Omnicom Group Inc. and Diluted Net Income per Common Share - Omnicom Group Inc. for the third and fourth quarters of 2013 were $407.5 million and $564.5 million, $217.7 million and $313.8 million and $0.82 and $1.18, respectively.

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Share-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2014

Share-Based Compensation Plans [Abstract]

Stock Option Activity

Stock option activity for the three years ended December 31, 2014 was:

	2014			2013			2012
	Shares		Weighted Average Exercise Price	Shares		Weighted Average Exercise Price	Shares		Weighted Average Exercise Price
January 1	2,643,680		$26.39	5,590,880		$25.72	18,301,409		$26.22
Granted	60,000		$66.16	60,000		$70.68	60,000		$49.65
Exercised	(1,046,540	)	$26.19	(3,021,200	)	$26.01	(12,673,529	)	$26.47
(Forfeited) reinstated	(5,000	)	$23.40	14,000		$23.40	(97,000	)	$35.98
December 31	1,652,140		$27.97	2,643,680		$26.39	5,590,880		$25.72
Exercisable December 31	1,526,140		$24.95	2,505,680		$24.67	5,333,880		$24.89

Options Outstanding and Exercisable

Options outstanding and exercisable at December 31, 2014 were:

			Options Outstanding			Options Exercisable
Range of Exercise Prices			Shares	Weighted Average Remaining Contractual Life	Weighted Average Exercise Price	Shares	Weighted Average Exercise Price
$23.40	to	$29.99	1,437,140	4.2 years	$23.40	1,437,140	$23.40
$30.00	to	$44.99	41,000	6.1 years	$41.57	41,000	$41.57
$45.00	to	$59.99	54,000	7.5 years	$49.32	30,000	$49.05
$60.00	to	$70.68	120,000	9.4 years	$68.42	18,000	$70.68
			1,652,140			1,526,140

Black-Scholes Assumptions and Weighted Average Fair Value Per Share for Options Granted

The Black-Scholes assumptions (without adjusting for the risk of forfeiture and lack of liquidity) and the weighted average fair value per share for options granted were:

	2014	2013	2012
Expected option lives	5 years	5 years	5 years
Risk free interest rate	1.4%	1.4%	0.8%
Expected volatility	22.3%	26.0%	29.5%
Dividend yield	3.0%	2.0%	3.1%
Weighted average fair value per option granted	$10.50	$14.50	$10.42

Restricted Stock Activity

Restricted stock activity for the three years ended December 31, 2014 was:

	2014		2013		2012
January 1	6,090,697		7,241,490		6,038,978
Granted	915,922		706,900		2,515,127
Vested	(1,619,444	)	(1,490,786	)	(981,737	)
Forfeited	(346,534	)	(366,907	)	(330,878	)
December 31	5,040,641		6,090,697		7,241,490
Weighted average grant date fair value of shares granted in the period	$64.92		$60.98		$49.55
Weighted average grant date fair value at December 31	$50.98		$47.47		$45.34

Performance Restricted Stock Units Activity

PRSU activity of the three years ended December 31, 2014 was:

	2014				2013				2012
	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
January 1	681,555		$	51.19	538,948		$	48.74	413,909		48.56
Granted	188,621		69.89		183,998		57.77		166,426		$	49.13
Distributed	(165,562	)	48.56		(41,391	)	48.56		(41,387	)	48.56
Forfeited	(81,755	)	61.76		—		—		—		—
December 31	622,859		$	56.16	681,555		$	51.19	538,948		$	48.74

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Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net Income	$ 1,233.1	$ 1,111.6	$ 1,117.5
Unrealized gain (loss) on available-for-sale securities, net of income taxes of $0.2 and $0.2 and $0.2 for 2014, 2013 and 2012, respectively	0.4	0.4	0.3
Foreign currency translation adjustment, net of income taxes of ($227.9) and ($62.3) and $41.3 for 2014, 2013 and 2012, respectively	(442.4)	(120.6)	80.3
Defined benefit pension and postemployment plans adjustment, net of income taxes of ($15.5) and $14.1 and ($14.5) for 2014, 2013 and 2012, respectively	(23.3)	21.0	(21.7)
Other Comprehensive Income (Loss)	(465.3)	(99.2)	58.9
Comprehensive Income	767.8	1,012.4	1,176.4
Comprehensive Income Attributed To Noncontrolling Interests	(90.4)	(83.4)	(115.9)
Comprehensive Income - Omnicom Group Inc.	$ 677.4	$ 929.0	$ 1,060.5

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Presentation of Financial Statements

12 Months Ended

Dec. 31, 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 consolidated financial statements were prepared in accordance with generally accepted accounting principles in the United States (“U.S. GAAP” or “GAAP”). All intercompany balances and transactions have been eliminated.

The preparation of financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates and assumptions.

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Equity Method Investments (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Equity interest in the net income of equity method investments	$ 16.2	$ 15.9	$ (15.0)
Equity interest in the net assets of equity method investments	49.0	48.4
Impairment charge on equity method investment, net	$ 0	$ 10.7	$ 29.2
Level 3 | Income Approach Valuation Technique [Member] | Equity Method Investments [Member]
Fair value inputs, weighted average cost of capital		27.00%	22.00%
Fair value inputs, expected long-term growth rate		5.00%

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Selected Quarterly Financial Data (Unaudited) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Selected Quarterly Financial Data (Unaudited) [Abstract]
Revenue	$ 4,195.1	$ 3,749.6	$ 3,870.9	$ 3,502.2	$ 4,058.1	$ 3,490.5	$ 3,637.0	$ 3,398.9	$ 15,317.8	$ 14,584.5	$ 14,219.4
Operating expenses	3,615.7	3,316.0	3,322.5	3,119.5	3,506.9	3,111.1	3,114.0	3,027.2	13,373.7	12,759.2	12,415.2
Operating Income	579.4	433.6	548.4	382.7	551.2	379.4	523.0	371.7	1,944.1	1,825.3	1,804.2
Net income - Omnicom Group Inc.	329.5	243.8	325.2	205.5	300.5	196.0	289.5	205.1	1,104.0	991.1	998.3
Net Income Per Share Omnicom Group Inc. - Basic	$ 1.30	$ 0.95	$ 1.24	$ 0.78	$ 1.14	$ 0.74	$ 1.09	$ 0.76	$ 4.27	$ 3.73	$ 3.64
Net Income Per Share Omnicom Group Inc. - Diluted	$ 1.30	$ 0.95	$ 1.23	$ 0.77	$ 1.13	$ 0.74	$ 1.09	$ 0.76	$ 4.24	$ 3.71	$ 3.61
Merger expenses			1.8	7.0	13.3	28.1			8.8	41.4
Operating Income, excluding merger expenses			550.2	389.7	564.5	407.5
Net Income - Omnicom Group Inc., excluding merger expenses			$ 315.8	$ 212.3	$ 313.8	$ 217.7
Net Income Per Share Omnicom Group Inc. - Diluted, excluding merger expenses			$ 1.20	$ 0.80	$ 1.18	$ 0.82

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Fair Value

12 Months Ended

Dec. 31, 2014

Fair Value [Abstract]

Fair Value

Fair Value

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

2014	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents	$	2,388.1					$	2,388.1
Short-term investments	2.2						2.2
Available-for-sale securities	4.9						4.9
Interest rate and foreign currency derivative instruments			$	43.1			43.1
Liabilities:
Foreign currency derivative instruments			$	0.4			$	0.4
Contingent purchase price obligations					$	300.7	300.7

2013
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 years ended December 31, 2014 and 2013 were (in millions):

	2014			2013
January 1	$	220.2		$	266.2
Acquisitions	167.1			35.8
Revaluation and interest	11.0			(10.9		)
Payments	(83.2		)	(70.5		)
Foreign currency translation	(14.4		)	(0.4		)
December 31	$	300.7		$	220.2

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

	2014				2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents	$	2,388.1	$	2,388.1	$	2,710.5	$	2,710.5
Short-term investments	2.2		2.2		18.2		18.2
Available-for-sale securities	4.9		4.9		4.9		4.9
Interest rate and foreign currency derivative instruments	43.1		43.1		2.2		2.2
Cost method investments	21.8		21.8		22.2		22.2
Liabilities:
Short-term borrowings	$	7.2	$	7.2	$	5.9	$	5.9
Foreign currency derivative instruments	0.4		0.4		0.1		0.1
Contingent interest derivative	—		—		2.1		2.1
Contingent purchase price obligations	300.7		300.7		220.2		220.2
Debt	4,563.0		4,754.9		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.

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Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

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

	2014						2013
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Goodwill	$	9,377.6	$	555.4	$	8,822.2	$	9,502.6	$	586.6	$	8,916.0
Intangible assets:
Purchased and internally developed software	$	298.7	$	221.4	$	77.3	$	283.2	$	217.4	$	65.8
Customer related and other	702.1		390.0		312.1		655.1		334.9		320.2
	$	1,000.8	$	611.4	$	389.4	$	938.3	$	552.3	$	386.0

Changes in Goodwill

Changes in goodwill for the years ended December 31, 2014 and 2013 were (in millions):

	2014			2013
January 1	$	8,916.0		$	8,844.2
Acquisitions	222.4			69.9
Dispositions	(3.0		)	(8.5		)
Foreign currency translation	(313.2		)	10.4
December 31	$	8,822.2		$	8,916.0

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Income Taxes

12 Months Ended

Dec. 31, 2014

Income Taxes [Abstract]

Income Taxes

Income Taxes

We file a consolidated U.S. income tax return and tax returns in various state and local jurisdictions. Our subsidiaries file tax returns in various foreign jurisdictions. Our principal foreign jurisdictions include the United Kingdom, France and Germany. The Internal Revenue Service has completed its examination of our federal tax returns through 2010. In addition, our subsidiaries’ tax returns in the United Kingdom, France and Germany have been examined through 2012, 2009 and 2009, respectively.

Income before income taxes for the three years ended December 31, 2014 was (in millions):

	2014		2013		2012
Domestic	$	739.9	$	629.4	$	683.5
International	1,070.1		1,031.5		976.1
	$	1,810.0	$	1,660.9	$	1,659.6

Income tax expense (benefit) for the three years ended December 31, 2014 was (in millions):

	2014			2013			2012
Current:
Federal	$	356.1		$	246.3		$	163.3
State and local	38.1			30.6			40.1
International	344.8			336.5			298.3
	739.0			613.4			501.7
Deferred:
Federal	(106.4		)	0.3			41.7
State and local	(2.3		)	(3.6		)	4.7
International	(37.2		)	(44.9		)	(21.0		)
	(145.9		)	(48.2		)	25.4
	$	593.1		$	565.2		$	527.1

The reconciliation from the statutory U.S. federal income tax rate to our effective tax rate is:

	2014		2013		2012
Statutory U.S. federal income tax rate	35.0	%	35.0	%	35.0	%
State and local income taxes, net of federal income tax benefit	1.3		1.0		1.7
Reduction of tax on unremitted foreign earnings due to     legal reorganization	—		—		(1.3	)
International tax rate differentials	(3.3	)	(3.0	)	(3.3	)
Other	(0.2	)	1.0		(0.3	)
Effective tax rate	32.8	%	34.0	%	31.8	%

The effective tax rate for 2014decreased to 32.8% from 34.0% in 2013. Income taxes for 2014 and 2013 reflect the recognition of an income tax benefit of $11.4 million and $6.5 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 from both years, our effective tax rate for 2014 and 2013 was 33.2% and 33.6%, respectively.

Income tax expense in 2012 was reduced by $53 million, primarily resulting from a reduction in the deferred tax liabilities for unremitted foreign earnings of certain of our operating companies located in the Asia Pacific region, as well as lower statutory tax rates in other foreign jurisdictions. In 2012, we completed a legal reorganization in certain countries within the Asia Pacific region. As a result of the reorganization, our unremitted foreign earnings in the affected countries are subject to lower effective tax rates as compared to the U.S. statutory tax rate. Therefore we recorded a reduction in our deferred tax liabilities to reflect the lower tax rate that these earnings are subject to. The reduction in income tax expense was partially offset by a charge of approximately $16 million resulting from U.S. state and local tax accruals recorded for uncertain tax positions, net of U.S. federal income tax benefit.

Income tax expense for 2014, 2013 and 2012 includes $1.7 million, $1.6 million and $2.5 million, respectively, of interest, net of tax benefit, and penalties related to tax positions taken on our tax returns. At December 31, 2014 and 2013, the accrued interest and penalties were $14.2 million and $11.5 million, respectively.

The components of deferred tax assets and liabilities at December 31, 2014 and 2013 were (in millions):

	2014			2013
Deferred tax assets:
Compensation and severance	$	311.9		$	269.8
Tax loss and credit carryforwards	95.6			149.1
Basis differences from acquisitions	38.0			28.7
Basis differences from short-term assets and liabilities	27.8			28.2
Other	33.0			53.2
Deferred tax assets	506.3			529.0
Valuation allowance	(34.1		)	(56.8		)
Net deferred tax assets	$	472.2		$	472.2
Deferred tax liabilities:
Goodwill and intangible assets	$	706.1		$	673.3
Financial instruments	263.1			421.8
Unremitted foreign earnings	51.1			114.5
Basis differences from investments	(4.2		)	(5.7		)
Deferred tax liabilities	$	1,016.1		$	1,203.9
Net deferred tax assets (liabilities)	$	(543.9	)	$	(731.7	)

Our net deferred tax assets and (liabilities) at December 31, 2014 and 2013, were classified as follows (in millions):

	2014			2013
Other current assets - deferred taxes	$	110.8		$	100.9
Long-term deferred tax liabilities	(654.7		)	(832.6		)
	$	(543.9	)	$	(731.7	)

The American Recovery and Reinvestment Act of 2009 provided an election where qualifying cancellation of indebtedness income for debt reacquired in 2009 and 2010 was deferred and included in taxable income ratably over the five taxable years beginning in 2014 and ending in 2018. In 2009 and 2010, we reacquired and retired $1.4 billion of our convertible debt resulting in a tax liability of approximately $329 million. In 2014, we paid $66 million and the remaining liability will be paid ratably from 2015 through 2018. Substantially all the deferred tax liability for financial instruments at December 31, 2014 and 2013, relates to the convertible debt.

In connection with the conversion of the 2032 Notes in July 2014 (see Note 7), we paid $66.2 million, representing the excess of the accreted value of the notes for income tax purposes over the conversion value and we reclassified $32.2 million, representing the difference between the issue price of the notes and the conversion value from long-term deferred tax liabilities to additional paid-in capital.

In connection with the conversion of the 2033 Notes and 2038 Notes in May 2013 (see Note 7), in 2014 we paid $52.7 million, representing the excess of the accreted value of the notes for income tax purposes over the conversion value and in 2013 we reclassified $34.5 million, representing the tax effect of the difference between the issue price of the notes and the conversion value from long-term deferred tax liabilities to additional paid-in capital.

We have concluded that it is more likely than not that we will be able to realize our net deferred tax assets in future periods because results of future operations are expected to generate sufficient taxable income. The valuation allowance of $34.1 million and $56.8 million at December 31, 2014 and 2013, respectively, relates to tax loss and credit carryforwards in the United States and international jurisdictions. Our tax loss and credit carryforwards for which there is no valuation allowance are available to us for periods ranging from 2019 to 2035, which is longer than the forecasted utilization of such carryforwards.

We have not provided for U.S. federal income and foreign withholding taxes on approximately $1.8 billion of cumulative undistributed earnings of certain foreign subsidiaries. We intend to indefinitely reinvest these undistributed earnings in our international operations. Accordingly, we currently have no plans to repatriate these funds. As such, we do not know the time or manner in which we would repatriate these funds. Because the time or manner of repatriation is uncertain, we cannot determine the impact of local taxes, withholding taxes and foreign tax credits associated with the future repatriation of such earnings and therefore cannot quantify the tax liability. We have provided $51.1 million of U.S. taxes, which are included in deferred tax liabilities, on cumulative undistributed earnings of certain foreign subsidiaries of approximately $1.8 billion that are not indefinitely reinvested. 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.

A reconciliation of our unrecognized tax benefits at December 31, 2014 and 2013 is (in millions):

	2014			2013
January 1	$	137.8		$	188.6
Additions:
Current year tax positions	6.0			5.1
Prior year tax positions	1.0			0.4
Reduction of prior year tax positions	0.5			(31.4		)
Settlements	(0.8		)	(24.6		)
Lapse of statute of limitations	(2.9		)	(0.2		)
Foreign currency translation	(1.8		)	(0.1		)
December 31	$	139.8		$	137.8

The majority of the liability for uncertain tax positions is included in long-term liabilities in our balance sheet. Approximately $58.6 million and $58.7 million of the liability for uncertain tax positions at December 31, 2014 and 2013, respectively, would affect our effective tax rate upon resolution of the uncertain tax positions.