Earnings per Share - Earnings per Share Reconciliation (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share Basic And Diluted [Line Items]
Basic	$ 0.73	$ 0.59	$ 1.16
Diluted	0.73	0.59	1.15
Dividends declared per common share	$ 1.04	$ 1.04	$ 1.04
Net earnings attributable to RR Donnelley common shareholders	$ 151.1	$ 117.4	$ 211.2
Weighted average number of common shares outstanding	205.6	198.5	181.9
Dilutive options and awards	1.2	1.5	1.6
Diluted weighted average number of common shares outstanding	206.8	200.0	183.5
Weighted average antidilutive securities excluded from computation of earnings per share	2.7	2.7	6.0
Stock options
Earnings Per Share Basic And Diluted [Line Items]
Weighted average antidilutive securities excluded from computation of earnings per share	2.0	2.0	3.9
Performance share units
Earnings Per Share Basic And Diluted [Line Items]
Weighted average antidilutive securities excluded from computation of earnings per share	0.7	0.7	0.6
Restricted stock units
Earnings Per Share Basic And Diluted [Line Items]
Weighted average antidilutive securities excluded from computation of earnings per share	0.0	0.0	1.5