CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 12.9	$ 34.8	$ (3.0)	$ 12.9
Other comprehensive loss, net of tax (Note 11):
Translation adjustments	(19.9)	(8.4)	(21.9)	(31.1)
Adjustments for net periodic pension and postretirement benefits plan cost	(0.2)	1.6	(0.6)	5.9
Other	0.6	0.0	2.1	0.0
Other comprehensive loss	(19.5)	(6.8)	(20.4)	(25.2)
Comprehensive (loss) income	(6.6)	28.0	(23.4)	(12.3)
Less: comprehensive (loss) income attributable to noncontrolling interests	(0.1)	0.1	(0.1)	0.7
Comprehensive (loss) income attributable to RRD common stockholders	$ (6.5)	$ 27.9	$ (23.3)	$ (13.0)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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