CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net Income	$ 1,790			$ 1,694			$ 4,181	$ 6,128
Other comprehensive income (loss), net of tax:
Net unrealized losses on securities available for sale	(2,108)			(2,935)			(2,034)	(8,476)
Net unrealized losses on hedging relationships	(259)			(804)			(282)	(2,496)
Foreign currency translation adjustments	(39)			(48)			8	(105)
Other	0			(1)			0	(1)
Other comprehensive loss, net of tax	(2,406)			(3,788)			(2,308)	(11,078)
Comprehensive income (loss)	$ (616)	$ 153	$ 2,336	$ (2,094)	$ (792)	$ (2,064)	$ 1,873	$ (4,950)