Equity - Schedule of the Company's Equity Activity (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Equity [Line Items]
Beginning Balance	$ 696.6	$ 620.4
Net earnings (loss)	40.1	11.9
Other comprehensive (loss) income	17.3	(20.4)
Share-based compensation	3.5	3.5
Issuance of share-based awards, net of withholdings and other	(5.0)	(4.1)
Cash dividends paid	(54.3)	(52.0)
Distributions to noncontrolling interests	(0.7)	(0.7)
Ending Balance	697.5	558.6
Total RR Donnelley's Shareholders' Equity
Equity [Line Items]
Beginning Balance	682.7	593.8
Net earnings (loss)	39.8	22.3
Other comprehensive (loss) income	17.1	(20.6)
Share-based compensation	3.5	3.5
Issuance of share-based awards, net of withholdings and other	(5.0)	(4.1)
Cash dividends paid	(54.3)	(52.0)
Ending Balance	683.8	542.9
Noncontrolling Interests
Equity [Line Items]
Beginning Balance	13.9	26.6
Net earnings (loss)	0.3	(10.4)
Other comprehensive (loss) income	0.2	0.2
Distributions to noncontrolling interests	(0.7)	(0.7)
Ending Balance	$ 13.7	$ 15.7