Acquisitions (Pro Forma Financial Information) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Acquisitions [Abstract]
Net sales	$ 10,646.5	$ 10,711.5
Net earnings (loss) attributable to RR Donnelley common shareholders	$ (76.3)	$ 137.1
Basic	$ (0.39)	$ 0.66
Diluted	$ (0.39)	$ 0.65