Revenue (Tables)

9 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue Principal Geographic Markets

Our agencies are located in over 100 countries, including every significant world market. Our geographic revenue breakdown is listed below.

	Three months ended September 30,				Nine months ended September 30,
Total revenue:	2023		2022		2023		2022
United States	$	1,759.7	$	1,744.3	$	5,180.1	$	5,171.8
International:
United Kingdom	215.5		195.5		627.6		646.8
Continental Europe	204.5		184.4		612.9		610.2
Asia Pacific	203.8		219.8		607.4		652.9
Latin America	120.0		113.6		321.1		318.0
Other	175.0		180.1		516.9		542.2
Total International	918.8		893.4		2,685.9		2,770.1
Total Consolidated	$	2,678.5	$	2,637.7	$	7,866.0	$	7,941.9

	Three months ended September 30,				Nine months ended September 30,
Revenue before billable expenses:	2023		2022		2023		2022
United States	$	1,509.9	$	1,523.0	$	4,512.3	$	4,548.0
International:
United Kingdom	193.0		176.5		548.1		543.7
Continental Europe	178.3		160.1		534.5		539.2
Asia Pacific	175.3		187.1		511.8		549.5
Latin America	114.8		107.4		301.9		297.0
Other	137.7		142.1		405.8		421.5
Total International	799.1		773.2		2,302.1		2,350.9
Total Consolidated	$	2,309.0	$	2,296.2	$	6,814.4	$	6,898.9

MD&E	Three months ended September 30,				Nine months ended September 30,
Total revenue:	2023		2022		2023		2022
United States	$	669.9	$	659.5	$	1,992.7	$	1,975.8
International	399.4		381.2		1,128.6		1,150.7
Total MD&E	$	1,069.3	$	1,040.7	$	3,121.3	$	3,126.5
Revenue before billable expenses:
United States	$	663.5	$	652.0	$	1,970.2	$	1,943.6
International	390.9		372.2		1,100.5		1,119.6
Total MD&E	$	1,054.4	$	1,024.2	$	3,070.7	$	3,063.2

IA&C	Three months ended September 30,				Nine months ended September 30,
Total revenue:	2023		2022		2023		2022
United States	$	610.2	$	643.6	$	1,878.7	$	1,947.2
International	356.2		367.8		1,062.4		1,132.6
Total IA&C	$	966.4	$	1,011.4	$	2,941.1	$	3,079.8
Revenue before billable expenses:
United States	$	579.9	$	620.0	$	1,782.6	$	1,870.8
International	303.4		307.1		890.0		935.0
Total IA&C	$	883.3	$	927.1	$	2,672.6	$	2,805.8

Contract Balances

The following table provides information about receivables, contract assets and contract liabilities from contracts with customers.

	September 30, 2023		December 31, 2022
Accounts receivable, net of allowance of $46.8 and $48.6, respectively	$	4,046.9	$	5,316.0
Accounts receivable, billable to clients	2,417.4		2,023.0
Contract assets	55.7		67.4
Contract liabilities (deferred revenue)	688.4		680.0