Gain (Loss) on Equity Investments and Warrant, net and Interest and Other, Net - Components of Interest and Other (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Nonoperating Income (Expense) [Abstract]
Interest income	$ 19	$ 38	$ 112
Interest expense	(269)	(304)	(311)
Foreign exchange and other	90	(32)	(52)
Total interest and other, net	$ (160)	$ (298)	$ (251)