Other Income, Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Other Income and Expenses [Abstract]
Gains/(Losses) on derivatives	$ (10)	$ 160	$ 22	$ 359
Currency revaluation gains/(losses)	56	(209)	22	(428)
Interest and investment income	24	24	47	52
Insurance Fee Income	0	26	0	47
Other	16	51	25	85
Total other income, net	$ 86	$ 52	$ 116	$ 115