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Income Taxes - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2022
Other income tax disclosures |  |  |
Effect of unrecognized tax benefit on income tax expense | $ 30 | $ 43 | $ 30
Interest expense and penalties related to unrecognized income tax expense | (10) | $ 2 |
Net accrued interest and penalties | $ 13 |  | 13
State |  |  |
Operating loss carryforwards |  |  |
State NOL carryforwards |  |  | 3,508
Deferred income tax asset for State NOL carryforwards |  |  | 177
State interest limitation carryforwards |  |  | 384
Deferred income tax asset for State interest limitation carryforwards |  |  | 16
Federal |  |  |
Operating loss carryforwards |  |  |
Federal NOL carryforwards |  |  | 344
Deferred income tax asset for Federal NOL carryforwards |  |  | 72
Federal interest limitation carryforwards |  |  | 277
Deferred income tax asset for Federal interest limitation carryforwards |  |  | $ 58

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