Noninterest Revenue and Noninterest Expense - Principal Transactions (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Principal transactions revenue
Total trading revenue	$ 6,806	$ 6,944	$ 13,581	$ 14,534
Private equity gains/(losses)	8	(34)	23	(9)
Principal transactions	6,814	6,910	13,604	14,525
Interest rate
Principal transactions revenue
Total trading revenue	935	1,781	2,006	3,567
Credit
Principal transactions revenue
Total trading revenue	447	419	1,138	1,053
Foreign exchange
Principal transactions revenue
Total trading revenue	1,077	1,435	2,613	2,986
Equity
Principal transactions revenue
Total trading revenue	4,101	2,941	7,378	5,634
Commodity
Principal transactions revenue
Total trading revenue	$ 246	$ 368	$ 446	$ 1,294

Amount of realized and unrealized gain (loss), from the firm's direct investment activity, conducted separately from customer trading activities, and includes, but is not limited to, investments in private equity, alternative investment products, real estate, and exchanges and memberships.

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of gain (loss) resulting from the difference between the acquisition price and the selling price or fair value of trading assets and trading liabilities, conducted separately from customer trading activities. Includes, but is not limited to, changes in fair value of trading assets and trading liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 940
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