CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (9.3)	$ (49.8)
Other comprehensive income (loss), net of tax (Note 11):
Translation adjustments	18.9	9.0
Adjustment for net periodic pension and postretirement benefits plan cost	2.6	0.7
Adjustment for available-for-sale securities		(32.3)
Other comprehensive income (loss)	21.5	(22.6)
Comprehensive income (loss)	12.2	(72.4)
Less: comprehensive income attributable to noncontrolling interests	0.8	0.5
Comprehensive income (loss) attributable to RRD common stockholders	$ 11.4	$ (72.9)