CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 18,525	$ 6,959	$ 36,455	$ 13,795
Other comprehensive income (loss):
Change in foreign currency translation adjustment	366	284	(57)	(266)
Available-for-sale investments:
Change in net unrealized gains (losses)	(52)	867	(540)	1,365
Less: reclassification adjustment for net (gains) losses included in net income	(75)	(149)	(64)	(318)
Net change, net of income tax benefit (expense) of $(220), $37, $(301) and $172	(127)	718	(604)	1,047
Cash flow hedges:
Change in net unrealized gains (losses)	(42)	(86)	137	292
Less: reclassification adjustment for net (gains) losses included in net income	(4)	(115)	81	(137)
Net change, net of income tax benefit (expense) of $35, $15, $(46) and $(35)	(46)	(201)	218	155
Other comprehensive income (loss)	193	801	(443)	936
Comprehensive income	$ 18,718	$ 7,760	$ 36,012	$ 14,731