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TAXES - Narrative (Details) - USD ($) | 3 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2024 | Mar. 25, 2024 | Dec. 31, 2022 | Aug. 16, 2022 | May 31, 2022
Provision for Income Tax [Line Items] |  |  |  |  |  |  |  |
Effective income tax rate reconciliation, disposition of business, amount | $ 58,000,000 |  |  |  |  |  |  |
Operating loss carryforwards, subject to expiration | 8,100,000,000 |  |  |  |  |  |  |
Net deferred income tax liability | 4,530,000,000 |  | $ 5,613,000,000 | $ 46,000,000 |  |  |  |
Deferred tax assets |  |  |  | $ 803,000,000 |  |  |  |
Operating loss carryforwards, not subject to expiration, net of tax |  |  |  |  |  |  | $ 1,000,000,000 |
Income tax examination, liability (refund) adjustment from settlement with taxing authority | $ 9,000,000 |  |  |  |  |  |  |
Federal Tax Authority |  |  |  |  |  |  |  |
Provision for Income Tax [Line Items] |  |  |  |  |  |  |  |
Operating loss carryforwards, not subject to expiration |  |  | 1,600,000,000 |  |  |  |  |
Operating loss carryforwards, not subject to expiration, net of tax |  |  | 343,000,000 |  |  |  |  |
State and Local Jurisdiction |  |  |  |  |  |  |  |
Provision for Income Tax [Line Items] |  |  |  |  |  |  |  |
Operating loss carryforwards, not subject to expiration |  |  | 12,900,000,000 |  |  |  |  |
Operating loss carryforwards, not subject to expiration, net of tax |  |  | 403,000,000 |  |  |  |  |
Pre-tax net operating loss carryforwards expected to utilized |  |  | 4,700,000,000 |  |  |  |  |
Operating loss carryforwards expected to utilized, net of tax |  |  | $ 185,000,000 |  |  |  |  |
Forecast |  |  |  |  |  |  |  |
Provision for Income Tax [Line Items] |  |  |  |  |  |  |  |
Operating loss carryforwards, subject to expiration |  | $ 1,600,000,000 |  |  |  |  |  |
Brookfield II | FET |  |  |  |  |  |  |  |
Provision for Income Tax [Line Items] |  |  |  |  |  |  |  |
Operating loss carryforwards, subject to expiration |  |  |  |  | $ 7,000,000,000 |  |  |
Sale of ownership interest by parent |  |  | 19.90% | 19.90% | 49.90% | 19.90% |  | 19.90%

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