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Commitments and Contingencies - Warranty Reserve Activity (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Movement in Standard Product Warranty Accrual [Roll Forward]    
Beginning balance at January 1 $ 6 $ 7
Provisions for warranties issued 2 2
Settlements (in cash or in kind) (2) (3)
Balance at March 31 $ 6 $ 6