Consolidated Statement of Comprehensive Income - 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	$ 6,247	$ 9,224	$ 13,314	$ 17,274
Other comprehensive income (loss), net-of-tax:
Net change in debt securities	(1,822)	(250)	(5,269)	(1,090)
Net change in debit valuation adjustments	575	149	836	265
Net change in derivatives	(2,008)	415	(7,187)	(699)
Employee benefit plan adjustments	36	69	60	120
Net change in foreign currency translation adjustments	(38)	26	(10)	(3)
Other comprehensive income (loss)	(3,257)	409	(11,570)	(1,407)
Comprehensive income (loss)	$ 2,990	$ 9,633	$ 1,744	$ 15,867