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Fair value option - Assets and Liabilities (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Assets of consolidated investment management funds: |  |
Trading assets | $ 13,625 | $ 13,981
Other assets | 1,608 | 2,151
Liabilities of consolidated investment management funds: |  |
Other liabilities | 872 | 422
Investment Management funds |  |
Assets of consolidated investment management funds: |  |
Trading assets | 800 | 846
Other assets | 26 | 45
Total assets | 826 | 891
Liabilities of consolidated investment management funds: |  |
Other liabilities | 9 | 5
Total liabilities | $ 9 | $ 5

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