Income Taxes - Schedule of Components of Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current:
Federal	$ (14)	$ 52	$ 59
State	30	92	39
Non-U.S.	320	342	257
Total current expense	336	486	355
Deferred:
Federal	(311)	(39)	38
State	38	40	10
Non-U.S.	(85)	(169)	12
Total deferred (benefit) expense	(358)	(168)	60
Total income tax expense (benefit)	$ (22)	$ 318	$ 415