CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 5,667	$ 1,786	$ 2,530
Other comprehensive income (loss), net of reclassification adjustments:
Foreign currency translation adjustment	291	(99)	(286)
Unrealized gains (losses) on investments, net	0	61	(41)
Tax benefit (expense) on unrealized gains (losses) on investments, net	0	(16)	10
Unrealized gains (losses) on hedging activities, net	(76)	(77)	125
Tax benefit (expense) on unrealized gains (losses) on hedging activities, net	17	17	(27)
Other comprehensive income (loss), net of tax	232	(114)	(219)
Comprehensive income	$ 5,899	$ 1,672	$ 2,311