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Guarantees, Indemnities and Warranties - Changes in Product Warranty Accrual (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Warranty accrual - January 1 $ 23.5 $ 29.4
Warranty expense 7.4 5.6
Payments (10.1) (12.3)
Foreign currency and other (1.0) 0.8
Warranty accrual - December 31 $ 19.8 $ 23.5