Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 2,774	$ 2,693	$ 2,420
Other comprehensive income (loss), net of related taxes:
Foreign currency translation, net of related taxes of $47, $86 and ($40), respectively	(441)	(413)	488
Net unrealized gains (losses) on investment securities, net of reclassification adjustment and net of related taxes of ($650), ($338) and $166, respectively	(1,767)	(896)	439
Net unrealized gains (losses) on cash flow hedges, net of related taxes of ($133), ($24) and $46, respectively	(357)	(59)	127
Net unrealized gains (losses) on retirement plans, net of related taxes of ($1), $16 and $3, respectively	(13)	48	9
Other comprehensive income (loss)	(2,578)	(1,320)	1,063
Total comprehensive income	$ 196	$ 1,373	$ 3,483