Revenue (Tables)

9 Months Ended

Sep. 30, 2020

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:	2020		2019		2020		2019
United States	$	1,354.8	$	1,550.9	$	4,234.0	$	4,681.1
International:
United Kingdom	172.4		201.9		528.8		617.9
Continental Europe	174.5		177.6		508.5		565.8
Asia Pacific	198.1		262.7		609.9		753.3
Latin America	83.2		109.2		235.7		300.3
Other	142.5		135.8		394.1		401.1
Total International	770.7		887.2		2,277.0		2,638.4
Total Consolidated	$	2,125.5	$	2,438.1	$	6,511.0	$	7,319.5

	Three months ended September 30,				Nine months ended September 30,
Net revenue:	2020		2019		2020		2019
United States	$	1,273.4	$	1,313.0	$	3,820.6	$	3,964.8
International:
United Kingdom	162.0		172.1		474.9		522.8
Continental Europe	158.0		155.7		453.7		495.8
Asia Pacific	166.0		205.0		487.4		588.1
Latin America	78.5		97.8		220.1		270.2
Other	116.7		117.8		323.4		350.4
Total International	681.2		748.4		1,959.5		2,227.3
Total Consolidated	$	1,954.6	$	2,061.4	$	5,780.1	$	6,192.1

IAN	Three months ended September 30,				Nine months ended September 30,
Total revenue:	2020		2019		2020		2019
United States	$	1,130.5	$	1,177.8	$	3,402.7	$	3,584.7
International	653.1		718.5		1,872.2		2,133.4
Total IAN	$	1,783.6	$	1,896.3	$	5,274.9	$	5,718.1
Net revenue:
United States	$	1,093.8	$	1,098.3	$	3,254.1	$	3,339.5
International	591.7		640.9		1,681.6		1,906.9
Total IAN	$	1,685.5	$	1,739.2	$	4,935.7	$	5,246.4

CMG	Three months ended September 30,				Nine months ended September 30,
Total revenue:	2020		2019		2020		2019
United States	$	224.3	$	373.1	$	831.3	$	1,096.4
International	117.6		168.7		404.8		505.0
Total CMG	$	341.9	$	541.8	$	1,236.1	$	1,601.4
Net revenue:
United States	$	179.6	$	214.7	$	566.5	$	625.3
International	89.5		107.5		277.9		320.4
Total CMG	$	269.1	$	322.2	$	844.4	$	945.7

Contract Balances

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

	September 30, 2020		December 31, 2019
Accounts receivable, net of allowance of $90.7 and $40.2, respectively	$	3,297.4	$	5,209.2
Accounts receivable, billable to clients	1,817.2		1,934.1
Contract assets	47.5		63.0
Contract liabilities (deferred revenue)	611.3		585.6