Revenue (Tables)

12 Months Ended

Dec. 31, 2019

Disaggregation of Revenue [Line Items]

Work in Process and Contract Liabilities

Work in process and contract liabilities were (in millions):

	December 31,
	2019		2018
Work in process:
Contract assets and unbilled fees and costs	$	689.2	$	540.1
Media and production costs	568.4		621.4
	$	1,257.6	$	1,161.5
Contract liabilities:
Customer advances	$	1,215.3	$	1,159.0

Geographic Markets [Member]

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue

Revenue in our principal geographic markets was (in millions):

	Year Ended December 31,
	2019		2018		2017
Americas:
North America	$	8,478.8	$	8,442.5	$	8,686.0
Latin America	403.4		457.5		494.8
EMEA:
Europe	4,107.4		4,375.4		4,127.9
Middle East and Africa	314.6		304.4		314.6
Asia-Pacific	1,649.5		1,710.4		1,650.3
	$	14,953.7	$	15,290.2	$	15,273.6

Discipline [Member]

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue

Revenue by discipline was (in millions):

	Year Ended December 31,
	2019		2018		2017
Advertising	$	8,451.7	$	8,281.0	$	8,175.9
CRM Consumer Experience	2,610.0		2,629.6		2,615.9
CRM Execution & Support	1,361.2		1,891.6		2,135.8
Public Relations	1,378.9		1,435.1		1,411.4
Healthcare	1,151.9		1,052.9		934.6
	$	14,953.7	$	15,290.2	$	15,273.6