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Fair Values - Detail of Loans and Lending Commitments at Fair Value (Details) - Loans and lending commitments - Recurring - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Fair Value Measurements
Trading assets	$ 10,007	$ 8,661
Commercial real estate
Fair Value Measurements
Trading assets	1,582	498
Residential real estate
Fair Value Measurements
Trading assets	2,715	1,922
Securities-based lending and Other
Fair Value Measurements
Trading assets	$ 5,710	$ 6,241

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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