Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 12,622	$ 8,282
Other comprehensive income/(loss), after–tax
Unrealized gains/(losses) on investment securities	2,212	(7,453)
Translation adjustments, net of hedges	197	(62)
Fair value hedges	(21)	110
Cash flow hedges	798	(2,791)
Defined benefit pension and OPEB plans	(55)	67
DVA on fair value option elected liabilities	(208)	646
Total other comprehensive income/(loss), after–tax	2,923	(9,483)
Comprehensive income/(loss)	$ 15,545	$ (1,201)