XML 61 R48.htm IDEA: XBRL DOCUMENT v3.19.2
Commitments and Contingencies - Warranty Reserve Activity (Detail) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Movement in Standard Product Warranty Accrual [Roll Forward]    
Beginning balance at January 1 $ 3 $ 4
Accrual of warranties issued 1 2
Settlements (in cash or in kind) (2) (3)
Balance at June 30 $ 2 $ 3