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Warranty Obligations - Changes in Warranty Liabilities (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Balance, beginning of period $ 56 $ 47
Amounts accrued for current period sales 7 7
Adjustments of prior estimates 5 2
Settlements of warranty claims (10) (8)
Currency impact 1 (2)
Balance, end of period $ 59 $ 46