CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (7.4)	$ (12.6)	$ (15.9)	$ (21.9)
Other comprehensive loss, net of tax (Note 11):
Translation adjustments	(3.2)	(41.6)	(2.0)	(22.7)
Adjustments for net periodic pension and postretirement benefits plan cost	(0.2)	1.7	(0.4)	4.3
Other	0.9	0.0	1.5	0.0
Other comprehensive loss	(2.5)	(39.9)	(0.9)	(18.4)
Comprehensive loss	(9.9)	(52.5)	(16.8)	(40.3)
Less: comprehensive (loss) income attributable to noncontrolling interests	(0.5)	(0.2)	0.0	0.6
Comprehensive loss attributable to RRD common stockholders	$ (9.4)	$ (52.3)	$ (16.8)	$ (40.9)