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Securities - Pledged assets (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Pledged Assets [Line Items] |  |
Total assets | $ 455,312 | $ 416,064
Securities | 149,528 | 136,627
Loans | 75,195 | 71,570
Trading assets | 13,625 | 13,981
Interest-bearing deposits with banks | 11,027 | 9,612
Pledged assets permitted to be sold or repledged | 366,000 | 300,000
Market value of securities received as collateral that have been sold or repledged | 326,000 | 264,000
Cash segregated under federal or other regulations | 3,000 | 1,000
Securities segregated under federal or other regulations | 3,000 | 5,000
Asset Pledged as Collateral |  |
Pledged Assets [Line Items] |  |
Total assets | 141,000 | 138,000
Securities | 119,000 | 117,000
Loans | 15,000 | 15,000
Trading assets | 6,000 | 5,000
Interest-bearing deposits with banks | 1,000 | 1,000
Financial instruments, owned, at fair value | 24,000 | 23,000
Asset Pledged as Collateral | Federal Home Loan Bank Advances |  |
Pledged Assets [Line Items] |  |
Total assets | 10,000 | 10,000
Asset Pledged as Collateral | Federal Reserve Discount Window Borrowings |  |
Pledged Assets [Line Items] |  |
Total assets | $ 86,000 | $ 88,000

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