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INCOME TAXES - Narrative (Details) - USD ($) | 2 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2020 | Dec. 31, 2019
Operating Loss Carryforwards [Line Items] |  |  |
Liability recorded for unrecognized tax benefits | $ 0 |  |
Reversal of more-likely-than-not basis |  | $ 76,000,000 |
Reversal or re-evaluated tax return filing |  |  | $ 25,000,000
Federal |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net operating loss carryforwards | 17,000,000 | 17,000,000 |
Tax credit carryforwards |  | 855,000,000 |
State and Local Jurisdiction | CALIFORNIA |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net operating loss carryforwards | $ 2,000,000,000 | $ 2,000,000,000 |

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- Definition Unrecognized Tax Benefits, Decrease Resulting From Prior Period Tax Positions, Portion From Reversal Of Re-Evaluated Tax Return Filing + References No definition available. + Details
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