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, 2023 |
Sep. 30, 2022 |
Sep. 30, 2023 |
Sep. 30, 2022 |
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| Investments, Debt and Equity Securities [Abstract] | ||||
| Gross gains | $ 0 | $ 540 | $ 104 | $ 1,243 |
| Gross losses | 0 | (526) | (508) | (1,206) |
| Net gains (losses) on sales of AFS debt securities | 0 | 14 | (404) | 37 |
| Income tax expense (benefit) attributable to realized net gains (losses) on sales of AFS debt securities | $ 0 | $ 4 | $ (101) | $ 9 |
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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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