Equity - Schedule of Equity Activity (Detail) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Equity [Line Items]
Beginning Balance	$ (254.4)	$ (243.8)	$ (416.6)	$ (370.3)	$ (243.8)	$ (370.3)
Net (loss) income	(9.2)	(1.1)	(57.2)	(12.9)	(10.3)	(70.1)
Other comprehensive (loss) income	17.5	(6.6)	6.2	(31.2)	10.9	(25.0)
Share-based compensation	2.4	0.2	1.8	1.4
Issuance of share-based awards, net of withholdings and other	(0.1)	(2.4)	(0.1)	(0.5)
Cash dividends paid				$ (2.1)
Accounting Standards Update [Extensible List]				us-gaap:AccountingStandardsUpdate201602Member
Distributions to noncontrolling interests		(0.7)		$ (0.7)
Ending Balance	(243.8)	(254.4)	(465.9)	(416.6)	(243.8)	(465.9)
Cumulative Effect, Period of Adoption, Adjustment
Equity [Line Items]
Beginning Balance				(0.3)		(0.3)
Common Stock
Equity [Line Items]
Beginning Balance	0.9	0.9	0.9	0.9	0.9	0.9
Ending Balance	0.9	0.9	0.9	0.9	0.9	0.9
Additional Paid-in Capital
Equity [Line Items]
Beginning Balance	3,105.4	3,263.6	3,267.1	3,348.0	3,263.6	3,348.0
Share-based compensation	2.4	0.2	1.8	1.4
Issuance of share-based awards, net of withholdings and other	(77.8)	(158.4)	(7.7)	(82.3)
Ending Balance	3,030.0	3,105.4	3,261.2	3,267.1	3,030.0	3,261.2
Treasury Stock
Equity [Line Items]
Beginning Balance	(971.6)	(1,127.6)	(1,137.8)	(1,219.6)	(1,127.6)	(1,219.6)
Issuance of share-based awards, net of withholdings and other	77.7	156.0	7.6	81.8
Ending Balance	(893.9)	(971.6)	(1,130.2)	(1,137.8)	(893.9)	(1,130.2)
Accumulated Deficit
Equity [Line Items]
Beginning Balance	(2,242.0)	(2,240.7)	(2,352.2)	(2,336.8)	(2,240.7)	(2,336.8)
Net (loss) income	(9.4)	(1.3)	(57.2)	(13.0)
Cash dividends paid				(2.1)
Ending Balance	(2,251.4)	(2,242.0)	(2,409.4)	(2,352.2)	(2,251.4)	(2,409.4)
Accumulated Deficit | Cumulative Effect, Period of Adoption, Adjustment
Equity [Line Items]
Beginning Balance				(0.3)		(0.3)
Accumulated Other Comprehensive Loss
Equity [Line Items]
Beginning Balance	(160.3)	(153.9)	(207.2)	(176.2)	(153.9)	(176.2)
Other comprehensive (loss) income	17.4	(6.4)	6.2	(31.0)	11.0	(24.8)
Ending Balance	(142.9)	(160.3)	(201.0)	(207.2)	(142.9)	(201.0)
RRD Stockholders' Equity
Equity [Line Items]
Beginning Balance	(267.6)	(257.7)	(429.2)	(383.7)	(257.7)	(383.7)
Net (loss) income	(9.4)	(1.3)	(57.2)	(13.0)
Other comprehensive (loss) income	17.4	(6.4)	6.2	(31.0)
Share-based compensation	2.4	0.2	1.8	1.4
Issuance of share-based awards, net of withholdings and other	(0.1)	(2.4)	(0.1)	(0.5)
Cash dividends paid				(2.1)
Ending Balance	(257.3)	(267.6)	(478.5)	(429.2)	(257.3)	(478.5)
RRD Stockholders' Equity | Cumulative Effect, Period of Adoption, Adjustment
Equity [Line Items]
Beginning Balance				(0.3)		(0.3)
Noncontrolling Interests
Equity [Line Items]
Beginning Balance	13.2	13.9	12.6	13.4	13.9	13.4
Net (loss) income	0.2	0.2		0.1
Other comprehensive (loss) income	0.1	(0.2)		(0.2)
Distributions to noncontrolling interests		(0.7)		(0.7)
Ending Balance	$ 13.5	$ 13.2	$ 12.6	$ 12.6	$ 13.5	$ 12.6