Noncontrolling Interests (Tables)

12 Months Ended

Dec. 31, 2020

Noncontrolling Interests [Abstract]

Changes in Ownership Interests in Less than 100% Owned Subsidiaries

Changes in the ownership interests in our less than 100% owned subsidiaries were (in millions):

	Year Ended December 31,
	2020		2019		2018
Net income attributed to Omnicom Group Inc.	$	945.4	$	1,339.1	$	1,326.4
Net transfers (to) from noncontrolling interests	5.8		(22.3)		(39.7)
Change from net income attributed to Omnicom Group Inc. and        transfers (to) from noncontrolling interests	$	951.2	$	1,316.8	$	1,286.7