Consolidated Statement of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 604	$ 519
Other comprehensive income (loss), net of related taxes:
Foreign currency translation, net of related taxes of $10 and $53, respectively	(98)	(200)
Net unrealized gains (losses) on available-for-sale securities, net of reclassification adjustment and net of related taxes of ($531) and $(161), respectively	(1,445)	(425)
Net unrealized gains (losses) on available-for-sale securities designated in fair value hedges, net of related taxes of $57 and $4, respectively	157	12
Net unrealized gains (losses) on cash flow hedges, net of related taxes of ($72) and $0, respectively	(194)	0
Net unrealized gains (losses) on retirement plans, net of related taxes of $6 and $3, respectively	15	8
Other comprehensive income (loss)	(1,565)	(605)
Total comprehensive income (loss)	$ (961)	$ (86)