Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
REVENUE:
Net revenue	$ 1,972.1	$ 2,004.8
Billable expenses	387.7	356.4
Total revenue	2,359.8	2,361.2
OPERATING EXPENSES:
Salaries and related expenses	1,422.8	1,421.1
Office and other direct expenses	378.2	389.2
Billable expenses	387.7	356.4
Cost of services	2,188.7	2,166.7
Selling, general and administrative expenses	22.4	41.4
Depreciation and amortization	72.8	71.1
Restructuring charges	0.0	31.8
Total operating expenses	2,283.9	2,311.0
OPERATING INCOME	75.9	50.2
EXPENSES AND OTHER INCOME:
Interest expense	(44.8)	(49.8)
Interest income	10.7	7.8
Other expense, net	(21.8)	(6.9)
Total (expenses) and other income	(55.9)	(48.9)
Income before income taxes	20.0	1.3
Provision for income taxes	17.2	10.5
Income of consolidated companies	2.8	(9.2)
Equity in net income (loss) of unconsolidated affiliates	(0.2)	(0.3)
NET INCOME	2.6	(9.5)
Net income attributable to noncontrolling interests	2.1	1.5
NET INCOME AVAILABLE TO IPG COMMON STOCKHOLDERS	$ 4.7	$ (8.0)
Earnings per share, Basic	$ 0.01	$ (0.02)
Earnings per share, Diluted	$ 0.01	$ (0.02)
Weighted-average number of common shares outstanding, Basic	387.7	384.5
Weighted-average number of common shares outstanding, Diluted	391.7	384.5