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v3.25.1

Investment Securities (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Schedule of Investments [Line Items] |  |  |
Loan interest receivable | $ 37 |  | $ 38
Floating rate securities | 3 | $ 3 |
Securities gains and losses | 0 | $ 0 |
Carrying value of securities pledged | 7,700 |  |
Pledged to the FHLB as collateral for potential future borrowings | 5,900 |  |
Collateral for potential future borrowings | 1,800 |  |
Liabilities secured by pledged collateral | $ 435 |  |

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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant