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Federal, State, and Local Taxes - Narrative (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Tax Disclosure [Abstract] |  |  |  |
Net operating loss carryforwards | $ 8,000,000 | $ 15,000,000 |  |
Total state net operating loss carryforwards |  | 185,000,000 |  |
Valuation allowance | 5,000,000 | 5,000,000 |  |
Low income housing tax credits | 372,000,000 | 304,000,000 |  |
Affordable housing tax credit commitment | $ 210,000,000 | 183,000,000 |  |
Commitments that expect to be funded period | 5 years |  |  |
Affordable housing tax credits | $ 34,000,000 | 11,000,000 | $ 9,000,000 |
Affordable housing tax credit amortization | 30,000,000 | 10,000,000 | 9,000,000 |
Affordable housing tax credit write down | 0 | 0 | 0 |
Unrecognized tax benefits | 42,000,000 | 40,000,000 | 39,000,000 | $ 38,000,000
Income tax expense interest and penalties | 8,000,000 | 4,000,000 | $ 4,000,000 |
Income tax accrued interest expense and penalties | 34,000,000 | 26,000,000 |  |
Would impact effective rate rate amount | 34,000,000 | $ 32,000,000 |  |
Unrecognized tax benefit decrease | 21,000,000 |  |  |
Bad debt reserve | 62,000,000 |  |  |
Federal deferred tax liability, bad debt reserve | $ 13,000,000 |  |  |

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