Other Income, Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Income and Expenses [Abstract]
Gains/(Losses) on derivatives	$ 101	$ 178	$ 83	$ 0
Currency revaluation gains/(losses)	(108)	(147)	(169)	(16)
Interest and investment income	27	83	90	162
Other	17	10	21	37
Other income, net	$ 37	$ 124	$ 25	$ 183