CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net Income	$ 2,031		$ 3,536		$ 4,434	$ 6,861
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on securities available for sale	(2,288)		51		(5,541)	(1,097)
Net unrealized losses on hedging relationships	(483)		(51)		(1,692)	(632)
Foreign currency translation adjustments	(52)		9		(57)	28
Other	0		0		0	(1)
Other comprehensive income (loss), net of tax	(2,823)		9		(7,290)	(1,702)
Comprehensive income (loss)	$ (792)	$ (2,064)	$ 3,545	$ 1,614	$ (2,856)	$ 5,159