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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
Jun. 30, 2017
Goodwill [Line Items]    
Goodwill gross $ 3,206.1 $ 3,248.7
Accumulated impairment losses (2,604.1) (2,641.6)
Goodwill 602.0 607.1
Foreign exchange and other adjustments 5.1  
Variable Print    
Goodwill [Line Items]    
Goodwill gross 1,823.0 1,823.5
Accumulated impairment losses (1,550.5) (1,551.0)
Goodwill 272.5 272.5
Strategic Services    
Goodwill [Line Items]    
Goodwill gross 365.2 365.2
Accumulated impairment losses (148.7) (148.7)
Goodwill 216.5 216.5
International    
Goodwill [Line Items]    
Goodwill gross 1,017.9 1,060.0
Accumulated impairment losses (904.9) (941.9)
Goodwill 113.0 $ 118.1
Foreign exchange and other adjustments $ 5.1