Noninterest Revenue and Noninterest Expense - Principal Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule of Non interest Revenue [Line Items]
Total trading revenue	$ 19,957	$ 16,325	$ 17,840
Private equity gains/(losses)	(45)	(21)	181
Principal transactions	19,912	16,304	18,021
Interest rate
Schedule of Non interest Revenue [Line Items]
Total trading revenue	3,010	1,646	2,575
Credit
Schedule of Non interest Revenue [Line Items]
Total trading revenue	1,412	2,691	2,753
Foreign exchange
Schedule of Non interest Revenue [Line Items]
Total trading revenue	5,119	2,787	4,253
Equity
Schedule of Non interest Revenue [Line Items]
Total trading revenue	8,068	7,773	6,171
Commodity
Schedule of Non interest Revenue [Line Items]
Total trading revenue	$ 2,348	$ 1,428	$ 2,088