Derivative and Hedging Activities - Narrative (Details) - Derivatives designated as hedging instruments: - USD ($) $ in Millions |
12 Months Ended | |
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Dec. 31, 2025 |
Dec. 31, 2024 |
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| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Repayment of FHLB loan advances | $ 2,000 | $ 2,800 |
| Amount of gain recognized in accumulated other comprehensive loss | $ 20 | 28 |
| Interest Rate Swaps, FHLB Advances | ||
| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Derivative, notional amount | $ 5,500 | |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Nominal or face amount used to calculate payment on derivative. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of repayments and penalties incurred in the satisfaction or roll-over of Federal Home Loan Bank (FHLB) advance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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