CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 597		$ 1,431		$ 1,877	$ 2,391
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on securities available for sale	(184)		(888)		(1,028)	74
Net unrealized gains (losses) on hedging relationships	18		(424)		(392)	(23)
Foreign currency translation adjustments	(1)		34		(14)	47
Other	0		0		1	0
Other comprehensive income (loss), net of tax	(167)		(1,278)		(1,433)	98
Comprehensive income	$ 430	$ 14	$ 153	$ 2,336	$ 444	$ 2,489