CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (9.2)	$ (57.2)	$ (10.3)	$ (70.1)
Other comprehensive income (loss), net of tax (Note 12):
Translation adjustments	10.0	6.8	(0.2)	(13.2)
Adjustments for net periodic pension and postretirement benefits plan cost	1.0	0.7	2.1	1.5
Changes in fair value of derivatives	6.5	(1.3)	9.0	(13.3)
Other comprehensive income (loss)	17.5	6.2	10.9	(25.0)
Comprehensive income (loss)	8.3	(51.0)	0.6	(95.1)
Less: comprehensive income (loss) attributable to non-controlling interests	0.3		0.3	(0.1)
Comprehensive income (loss) attributable to RRD common stockholders	$ 8.0	$ (51.0)	$ 0.3	$ (95.0)