Noninterest Revenue and Noninterest Expense - Principal Transactions (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Principal transactions revenue
Total trading revenue	$ 4,882	$ 4,094	$ 10,134	$ 10,491
Private equity gains/(losses)	108	(18)	(39)	85
Principal transactions	4,990	4,076	10,095	10,576
Interest rate
Principal transactions revenue
Total trading revenue	376	464	845	1,387
Credit
Principal transactions revenue
Total trading revenue	279	759	736	2,029
Foreign exchange
Principal transactions revenue
Total trading revenue	1,425	641	2,749	1,639
Equity
Principal transactions revenue
Total trading revenue	2,303	1,929	4,558	4,586
Commodity
Principal transactions revenue
Total trading revenue	$ 499	$ 301	$ 1,246	$ 850

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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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.

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