Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 5,644	$ 862	$ (775)
Other comprehensive income (loss):
Foreign currency translation adjustment	(308)	399	(28)
Unrealized net loss on marketable securities	(1)
Comprehensive income (loss)	5,335	1,261	(803)
Less: Comprehensive income attributable to noncontrolling interests and redeemable noncontrolling interests in subsidiaries	125	141	87
Comprehensive income (loss) attributable to common stockholders	$ 5,210	$ 1,120	$ (890)