Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Components of Profit before income taxes
U.S.									$ 230	$ 207	$ 91
Non-U.S.									389	546	603
Profit before income taxes	$ 129	$ 153	$ 150	$ 187	$ 166	$ 197	$ 208	$ 182	619	753	694
Current income tax provision (benefit)
U.S.									(21)	14	(14)
Non-U.S.									109	138	183
State (U.S.)									2	(1)	0
Current income tax provision (benefit)									90	151	169
Deferred income tax provision (benefit)
U.S.									45	44	17
Non-U.S.									21	13	(18)
State (U.S.)									2	1	(1)
Deferred income tax provision (benefit)									68	58	(2)
Total Provision for income taxes									$ 158	$ 209	$ 167