Segment Information (Notes)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Segment Reporting Disclosure

Segment Information

As of March 31, 2018, we have two reportable segments: IAN and CMG. IAN is comprised of McCann Worldgroup, Foote, Cone & Belding ("FCB"), MullenLowe Group, IPG Mediabrands, our digital specialist agencies and our domestic integrated agencies. CMG is comprised of a number of our specialist marketing services offerings. We also report results for the “Corporate and other” group. The profitability measure employed by our chief operating decision maker for allocating resources to operating divisions and assessing operating division performance is segment operating income (loss). Segment information is presented consistently with the basis described in our 2017 Annual Report on Form 10-K.    Summarized financial information concerning our reportable segments is shown in the following table.

	Three months ended March 31,
	2018			2017
Total revenue:
IAN	$	1,685.5		$	1,567.8
CMG	483.6			496.0
Total	$	2,169.1		$	2,063.8
Net revenue:
IAN	$	1,481.3		$	1,391.1
CMG	292.7			284.2
Total	$	1,774.0		$	1,675.3
Segment operating income (loss):
IAN	$	57.0		$	50.1
CMG	19.4			22.1
Corporate and other	(37.6		)	(37.5		)
Total	38.8			34.7
Interest expense, net	(15.9		)	(15.7		)
Other (expense) income, net	(24.4		)	0.8
(Loss) income before income taxes	$	(1.5	)	$	19.8
Depreciation and amortization
IAN	$	37.4		$	32.7
CMG	6.1			6.0
Corporate and other	2.5			2.3
Total	$	46.0		$	41.0
Capital expenditures:
IAN	$	15.8		$	17.2
CMG	1.1			2.7
Corporate and other	5.9			4.9
Total	$	22.8		$	24.8
	March 31, 2018			December 31, 2017
Total assets:
IAN	$	10,744.3		$	10,978.0
CMG	1,476.5			1,427.4
Corporate and other	19.3			299.3
Total	$	12,240.1		$	12,704.7