CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 4.4	$ 99.0	$ (92.7)
Other comprehensive (loss) income, net of tax (Note 14):
Translation adjustments	(11.1)	27.8	7.0
Adjustment for net periodic pension and other postretirement benefits plan cost	91.7	7.2	(30.5)
Changes in fair value of derivatives	10.1	(12.0)	1.0
Other comprehensive income (loss)	90.7	23.0	(22.5)
Comprehensive income (loss)	95.1	122.0	(115.2)
Less: comprehensive income attributable to noncontrolling interests	0.6	1.2	0.4
Comprehensive income (loss) attributable to RRD common stockholders	$ 94.5	$ 120.8	$ (115.6)