Other Financial Statement Details - Reclassifications Out Of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Net revenues	$ (6,033)	$ (4,618)
Other income (expense), net	170	135
Income before income taxes	(872)	(263)
Income tax (benefit) expense	(225)	179
Net income	(1,097)	(84)
Amount of Gains (Losses) Reclassified from AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before income taxes	(59)	42
Income tax (benefit) expense	0	0
Net income	(59)	42
Amount of Gains (Losses) Reclassified from AOCI | (Losses) gains on cash flow hedges—foreign exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Net revenues	(59)	42
Amount of Gains (Losses) Reclassified from AOCI | Unrealized gains (losses) on investments
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other income (expense), net	$ 0	$ 0