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REGULATORY MATTERS - New Jersey (Details) - New Jersey | Apr. 23, 2025 USD ($) | Nov. 09, 2023 USD ($) | Oct. 31, 2023 windFarm MW | Apr. 17, 2023 | Oct. 26, 2022 USD ($) | Jan. 16, 2025 USD ($)
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JCP And L |  |  |  |  |  |
Regulatory Matters [Line Items] |  |  |  |  |  |
Approved amount of annual increase |  |  |  |  | $ 723,000,000 |
Approved ROE |  |  |  |  | 10.20% |
Public utility, offshore development, percent |  |  |  |  | 20.00% |
Recovery of transmission incentive rates, percentage |  |  |  | 100.00% |  |
Recovery of transmission incentive rates prior to approval date |  |  |  | 50.00% |  |
Public utilities, number of offshore wind projects that development ceased | windFarm |  |  | 2 |  |  |
Plant capacity (in MW's) | MW |  |  | 2,248 |  |  |
Approved loan guarantee of maximum amount |  |  |  |  |  | $ 716,000,000
EnergizeNJ | NJBPU | Distribution Segment | Jcp And L |  |  |  |  |  |
Regulatory Matters [Line Items] |  |  |  |  |  |
Amount of requested rate increase |  | $ 935,000,000 |  |  |  |
Implementation period |  | 5 years |  |  |  |
Public utilities, requested rate increase (decrease), amount, capital commitments |  | $ 906,000,000 |  |  |  |
Public utilities, requested rate increase (decrease), amount, operating and maintenance expense |  | $ 29,000,000 |  |  |  |
EnergizeNJ | NJBPU | Distribution Segment | Jcp And L | Subsequent Event |  |  |  |  |  |
Regulatory Matters [Line Items] |  |  |  |  |  |
Approved amount of annual increase | $ 339,000,000 |  |  |  |  |
Approved capital commitments | 203,000,000 |  |  |  |  |
Approved matching capital commitments | 132,000,000 |  |  |  |  |
Approved O&M expense | $ 4,000,000 |  |  |  |  |

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