Securities - Gross Realized Gains (Losses) on Sales of Available For Sale Debt Securities (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
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| Investments, Debt and Equity Securities [Abstract] | ||||
| Gross gains | $ 34 | $ 4 | $ 50 | $ 19 |
| Gross losses | (37) | (23) | (73) | (25) |
| Net gains (losses) on sales of AFS debt securities | (3) | (19) | (23) | (6) |
| Income tax expense (benefit) attributable to realized net gains (losses) on sales of AFS debt securities | $ (1) | $ (5) | $ (6) | $ (1) |
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- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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