Assets Current Assets (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Value added tax receivable	$ 192	$ 198
Prepaid insurance and other expenses	66	78
Reimbursable engineering costs	63	55
Notes receivable	43	25
Income and other taxes receivable	26	44
Deposits to vendors	8	8
Derivative financial instruments (Note 17)	11	0
Other	1	23
Total	$ 410	$ 431