Assets Other Current Assets (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Value added tax receivable	$ 58	$ 59
Prepaid insurance and other expenses	11	6
Reimbursable engineering costs	18	20
Notes receivable	18	39
Income and other taxes receivable	8	5
Deposits to vendors	1	2
Derivative Asset, Current	5	0
Return assets	8	0
Total	$ 127	$ 131