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Warranty - Schedule of Company's Warranty Accruals (Parenthetical) (Detail)
$ in Millions
12 Months Ended
Dec. 31, 2016
USD ($)
Product Warranty Liability [Line Items]  
Acquisition balance relates to a pre-acquisition settlement agreement $ 174
Pre-acquisition Settlement Agreement for Specific Performance [Member]  
Product Warranty Liability [Line Items]  
Acquisition balance relates to a pre-acquisition settlement agreement $ 127