Equity - Schedule of Equity Activity (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Equity [Line Items]
Beginning Balance			$ (202.9)
Cumulative impact of adopting Topic 606, net of tax			12.9
Net (loss) income	$ (12.6)	$ 76.7	(21.9)	$ 26.9
Other comprehensive loss	(39.9)	$ (64.4)	(18.4)	$ (87.0)
Share-based compensation			4.2
Issuance of share-based awards, net of withholdings and other			(0.8)
Cash dividends paid			(19.6)
Distributions to noncontrolling interests			(1.0)
Ending Balance	(247.5)		(247.5)
Total RRD Stockholders' Equity
Equity [Line Items]
Beginning Balance			(217.6)
Cumulative impact of adopting Topic 606, net of tax			12.9
Net (loss) income			(22.6)
Other comprehensive loss			(18.3)
Share-based compensation			4.2
Issuance of share-based awards, net of withholdings and other			(0.8)
Cash dividends paid			(19.6)
Distributions to noncontrolling interests			0.0
Ending Balance	(261.8)		(261.8)
Noncontrolling Interests
Equity [Line Items]
Beginning Balance			14.7
Cumulative impact of adopting Topic 606, net of tax			0.0
Net (loss) income			0.7
Other comprehensive loss			(0.1)
Share-based compensation			0.0
Issuance of share-based awards, net of withholdings and other			0.0
Cash dividends paid			0.0
Distributions to noncontrolling interests			(1.0)
Ending Balance	$ 14.3		$ 14.3