Assets Non Current assets (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred income taxes (Note 14)	$ 283	$ 238
Unamortized Revolving Credit Facility debt issuance costs (Note 11)	10	12
Income and other taxes receivable	56	54
Reimbursable engineering costs	26	43
Value added tax receivable	33	24
Cost method investments	26	23
Derivative financial instruments (Note 17)	8	0
Other	67	65
Total	$ 509	$ 459