Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 8,649	$ 11,948	$ 16,931	$ 26,248
Other comprehensive income/(loss), after–tax
Unrealized gains/(losses) on investment securities	(4,031)	674	(11,484)	(3,665)
Translation adjustments, net of hedges	(679)	64	(741)	(186)
Fair value hedges	51	(23)	161	(51)
Cash flow hedges	(1,348)	591	(4,139)	(1,658)
Defined benefit pension and OPEB plans	20	9	87	77
DVA on fair value option elected liabilities	1,185	214	1,831	67
Total other comprehensive income/(loss), after–tax	(4,802)	1,529	(14,285)	(5,416)
Comprehensive income	$ 3,847	$ 13,477	$ 2,646	$ 20,832