Variable Interest Entities - Programs Under Proportional Amortization Method (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Programs for which the Firm elected proportional amortization:
Carrying value	$ 34,094	$ 32,335	$ 34,094	$ 32,335
Tax credits and other tax benefits	1,538	1,431	4,770	4,230
Investments that qualify to be accounted for using proportional amortization:
Amortization losses recognized as a component of income tax expense	(1,033)	(1,075)	(3,655)	(3,105)
Non-income-tax-related gains/(losses) and other returns received that are recognized outside of income tax expense	56	29	141	108
Income tax credits for investments in programs where the proportional amortization method was elected but the investments do not quality	275	277	819	837
Amortization losses for investments in programs where the proportional amortization method was elected but the investments do not quality	$ (315)	$ (331)	$ (918)	$ (1,000)

Investment Program, Proportional Amortization Method, Elected

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Investment Program, Proportional Amortization Method, Elected, Criteria Not Met, Amortization Expense

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Investment Program, Proportional Amortization Method, Elected, Criteria Not Met, Income Tax Credit

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Investment, Proportional Amortization Method, Elected

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Amount, before amortization expense, of income tax credit and other tax benefit generated by investment under tax credit program elected to be accounted for using proportional amortization method. Includes, but is not limited to, investment under tax credit program not meeting condition for accounting under proportional amortization method.

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Amount of investment that generates income tax credit and other income tax benefit under tax credit program elected to be accounted for using proportional amortization method. Includes, but is not limited to, investment under program not meeting condition for accounting under proportional amortization method.

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Amount of amortization expense for investment that generates income tax credit and other income tax benefit under tax credit program accounted for using proportional amortization method.

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Amount of income (loss) from non-income-tax-related activity and other return on investment under tax credit program accounted for using proportional amortization method, not recognized in income tax expense (benefit).

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