Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenue	$ 3,706.6	$ 3,749.6	$ 10,981.1	$ 11,122.7
Operating Expenses	3,278.3	3,316.0	9,636.5	9,758.0
Operating Income	428.3	433.6	1,344.6	1,364.7
Interest Expense	45.6	42.2	134.0	135.4
Interest Income	9.7	10.8	29.3	31.3
Income Before Income Taxes and Income From Equity Method Investments	392.4	402.2	1,239.9	1,260.6
Income Tax Expense	128.9	134.4	406.9	410.9
Income From Equity Method Investments	3.2	5.8	6.2	10.4
Net Income	266.7	273.6	839.2	860.1
Net Income Attributed To Noncontrolling Interests	27.4	29.8	76.9	85.6
Net Income - Omnicom Group Inc.	$ 239.3	$ 243.8	$ 762.3	$ 774.5
Net Income Per Share - Omnicom Group Inc.:
Basic	$ 0.97	$ 0.95	$ 3.08	$ 2.97
Diluted	0.97	0.95	3.06	2.95
Dividends Declared Per Common Share	$ 0.50	$ 0.50	$ 1.50	$ 1.40