Assets Current Assets (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Value added tax receivable $ 175 $ 191
Deferred income taxes 168 171
Prepaid insurance and other expenses 54 59
Reimbursable engineering costs 48 55
Notes receivable 29 28
Income and other taxes receivable 27 34
Deposits to vendors 8 8
Derivative financial instruments (Note 14) 1 0
Other 23 21
Total $ 533 $ 567