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Warranty Obligations - Changes in Warranty Liabilities (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]        
Balance, beginning of period $ 74 $ 63 $ 66 $ 56
Acquisitions     6  
Acquisitions adjustments (2)      
Amounts accrued for current period sales 8 6 23 19
Adjustments of prior estimates 4 7 9 19
Settlements of warranty claims (9) (10) (32) (28)
Currency impact 1 3 1
Balance, end of period $ 75 $ 67 $ 75 $ 67