Goodwill and Other Intangible Assets - Schedule of Changes in the Carrying Value of Goodwill by Segment (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Line Items]
Goodwill gross	$ 3,206.1	$ 3,236.4	$ 3,315.4
Accumulated impairment losses	(2,604.1)	(2,150.7)	(2,216.2)
Goodwill	602.0	1,085.7	1,099.2
Acquisitions	42.5	15.2
Foreign exchange and other adjustments	1.6	(10.7)
Impairment charges	(527.8)	(18.0)
Variable Print
Goodwill [Line Items]
Goodwill gross	1,823.0	1,794.5	1,794.6
Accumulated impairment losses	(1,550.5)	(1,022.9)	(1,022.9)
Goodwill	272.5	771.6	771.7
Acquisitions	21.2	2.3
Foreign exchange and other adjustments	7.5	(2.4)
Impairment charges	(527.8)	0.0
Strategic Services
Goodwill [Line Items]
Goodwill gross	365.2	343.9	336.4
Accumulated impairment losses	(148.7)	(148.7)	(148.7)
Goodwill	216.5	195.2	187.7
Acquisitions	21.3	7.5
Foreign exchange and other adjustments	0.0	0.0
Impairment charges	0.0	0.0
International
Goodwill [Line Items]
Goodwill gross	1,017.9	1,098.0	1,184.4
Accumulated impairment losses	(904.9)	(979.1)	(1,044.6)
Goodwill	113.0	118.9	$ 139.8
Acquisitions		5.4
Foreign exchange and other adjustments	$ (5.9)	(8.3)
Impairment charges		$ (18.0)