Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 18,149	$ 14,472	$ 31,568	$ 27,094
Other comprehensive income/(loss), after–tax
Unrealized gains/(losses) on investment securities	108	757	249	2,969
Translation adjustments, net of hedges	(156)	70	(360)	267
Fair value hedges	8	11	(13)	(10)
Cash flow hedges	(22)	(497)	(911)	301
Defined benefit pension and OPEB plans	(3)	(6)	23	(61)
DVA on fair value option elected liabilities	366	(207)	117	(415)
Total other comprehensive income/(loss), after–tax	301	128	(895)	3,051
Comprehensive income	$ 18,450	$ 14,600	$ 30,673	$ 30,145