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Warranty Obligations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Accrual balance at beginning of year $ 65 $ 31
Provision for estimated warranties incurred during the period 47 49
Changes in estimate for pre-existing warranties 45 13
Settlements made during the period (in cash or in kind) (103) (25)
Foreign currency translation and other 4 (3)
Accrual balance at end of year 58 $ 65
Advanced Safety and User Experience    
Product Warranty Liability [Line Items]    
Specific Warranty Expense 43  
Minimum | Product Warranty    
Product Warranty Liability [Line Items]    
Range of Possible Loss, Portion Not Accrued 0  
Maximum | Product Warranty    
Product Warranty Liability [Line Items]    
Range of Possible Loss, Portion Not Accrued $ 25