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Environmental Matters, Litigation and Product Warranties - Warranty Accrual Rollforward (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Beginning Balance $ 20 $ 23
Accruals related to product warranties 3 2
Reductions for payments made (3) (1)
Ending Balance $ 20 $ 24