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Warranty Obligations - Changes in Warranty Liabilities (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]        
Balance, beginning of period $ 59 $ 46 $ 56 $ 47
Amounts accrued for current period sales 6 7 13 14
Adjustments of prior estimates 7 2 12 4
Settlements of warranty claims (8) (8) (18) (16)
Currency impact (1) 1 (1)
Balance, end of period $ 63 $ 48 $ 63 $ 48