Accumulated Other Comprehensive Income - Reclassifications out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of net revenues	$ (678)	$ (478)	$ (1,956)	$ (1,249)
Interest and other, net	(228)	94	(676)	276
Total, before income taxes	434	756	1,559	2,251
Provision for income taxes	(151)	(151)	(414)	(536)
Net income	264	664	11,639	4,822
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	(12)	5	(46)	18
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Derivative Instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total, before income taxes	(17)	6	(61)	23
Provision for income taxes	4	(1)	14	(5)
Net income	(13)	5	(47)	18
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Derivative Instruments | Foreign Exchange Contract
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net revenues	(19)	6	(65)	23
Cost of net revenues	1	0	3	0
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Derivative Instruments | Interest Rate Contract
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest and other, net	1	0	1	0
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Investments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest and other, net	1	0	1
Total, before income taxes	1	0	1	0
Provision for income taxes	0	0	0	$ 0
Net income	$ 1	$ 0	$ 1