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Warranties (Detail) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Balance at beginning of year $ 153.7 $ 153.1
Acquisitions 108.2 3.1
Warranty expense 81.9 45.7
Warranty claim payments (93.1) (43.0)
Foreign currency impact/other (4.1) (4.4)
Balance at end of period $ 246.6 $ 154.5