Goodwill and Other Intangible Assets - Schedule of Changes in the Carrying Value of Goodwill by Segment (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Goodwill [Line Items]
Goodwill gross	$ 4,835.6	$ 4,803.5
Accumulated impairment losses	(3,077.4)	(3,096.9)
Goodwill	1,758.2	1,706.6
Acquisitions	58.3
Foreign exchange and other adjustments	(6.7)
Publishing and Retail Services
Goodwill [Line Items]
Goodwill gross	740.6	688.0
Accumulated impairment losses	(688.0)	(688.0)
Goodwill	52.6
Acquisitions	52.6
Variable Print
Goodwill [Line Items]
Goodwill gross	1,913.1	1,914.1
Accumulated impairment losses	(1,105.2)	(1,105.2)
Goodwill	807.9	808.9
Foreign exchange and other adjustments	(1.0)
Strategic Services
Goodwill [Line Items]
Goodwill gross	988.0	987.5
Accumulated impairment losses	(221.3)	(222.4)
Goodwill	766.7	765.1
Acquisitions	1.8
Foreign exchange and other adjustments	(0.2)
International
Goodwill [Line Items]
Goodwill gross	1,193.9	1,213.9
Accumulated impairment losses	(1,062.9)	(1,081.3)
Goodwill	131.0	$ 132.6
Acquisitions	3.9
Foreign exchange and other adjustments	$ (5.5)