Net Income (Loss) per Share (Tables)

6 Months Ended

Jun. 30, 2021

Net Income per Share [Abstract]

Computations of Basic and Diluted Net Income (Loss) per Share

The computations of basic and diluted net income (loss) per share were (in millions, except per share amounts):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Net Income (Loss) - Omnicom Group Inc.	$	348.2	$	(24.2)	$	636.0	$	234.0
Weighted Average Shares:
Basic	215.4		214.9		215.5		215.8
Dilutive stock options and restricted shares	1.7		0.5		1.5		0.7
Diluted	217.1		215.4		217.0		216.5
Anti-dilutive stock options and restricted shares	0.7		0.8		0.7		0.8
Net Income (Loss) per Share - Omnicom Group Inc.:
Basic	$	1.62	$	(0.11)	$	2.95	$	1.08
Diluted	$	1.60	$	(0.11)	$	2.93	$	1.08