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Warranty - Schedule of Company's Warranty Accruals (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Movement in Standard Product Warranty Accrual [Roll Forward]    
Balance, beginning of year $ 270 $ 59
Expense, net 51 101
Settlements (81) (59)
Acquisitions   174
Foreign exchange and other 15 (5)
Balance, end of year $ 255 $ 270