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Warranty Obligations (Tables)
 12 Months Ended
Dec. 31, 2017
Product Warranties Disclosures [Abstract]  
Schedule of Product Warranty Liability
The table below summarizes the activity in the product warranty liability for the years ended December 31, 2017 and 2016:
 
Year Ended December 31,
 
2017
 
2016
 
(in millions)
Accrual balance at beginning of year
$
65

 
$
31

Provision for estimated warranties incurred during the year
47

 
49

Changes in estimate for pre-existing warranties
45

 
13

Settlements made during the year (in cash or in kind)
(103
)
 
(25
)
Foreign currency translation and other
4

 
(3
)
Accrual balance at end of year
$
58

 
$
65