CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 6,959	$ 9,947	$ 13,795	$ 16,604
Other comprehensive income:
Change in foreign currency translation adjustment	284	118	(266)	82
Available-for-sale investments:
Change in net unrealized gains (losses)	867	741	1,365	1,460
Less: reclassification adjustment for net (gains) losses included in net income	(149)	(75)	(318)	(68)
Net change, net of tax benefit (expense) of $(103), $(220), $(191) and $(301)	718	666	1,047	1,392
Cash flow hedges:
Change in net unrealized gains (losses)	(86)	(25)	292	(55)
Less: reclassification adjustment for net (gains) losses included in net income	(115)	(70)	(137)	(174)
Net change, net of tax benefit (expense) of $22, $35, $23 and $(46)	(201)	(95)	155	(229)
Other comprehensive income	801	689	936	1,245
Comprehensive income	$ 7,760	$ 10,636	$ 14,731	$ 17,849