CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 4,887	$ 7,360	$ 12,390
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on securities available for sale	907	(7,973)	(1,889)
Net unrealized gains (losses) on hedging relationships	689	(2,300)	(1,244)
Foreign currency translation adjustments	46	1	10
Other	6	(18)	3
Other comprehensive income (loss), net of tax	1,648	(10,290)	(3,120)
Comprehensive income (loss)	$ 6,535	$ (2,930)	$ 9,270