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Income Taxes - Narrative (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
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Other income tax disclosures |  |  |
Effect of unrecognized tax benefit on income tax expense | $ 26 | $ 31 | $ 30
Net accrued interest and penalties | 13 | $ 13 |
State |  |  |
Operating loss carryforwards |  |  |
State NOL carryforwards | 4,526 |  |
Deferred income tax asset for State NOL carryforwards | 218 |  |
State interest limitation carryforwards | 742 |  |
Deferred income tax asset for State interest limitation carryforwards | 30 |  |
Federal |  |  |
Operating loss carryforwards |  |  |
Federal NOL carryforwards | 234 |  |
Deferred income tax asset for Federal NOL carryforwards | 49 |  |
Federal interest limitation carryforwards | 696 |  |
Deferred income tax asset for Federal interest limitation carryforwards | $ 146 |  |

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