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REGULATORY MATTERS - GAS Schedule of Utility Regulation and Rate Design (Details) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2023 | Aug. 31, 2023 | Dec. 31, 2024
Nicor Gas |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Authorized ROE | 9.51% |  | 9.51%
Atlanta Gas Light |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Authorized ROE |  |  | 10.25%
Virginia Natural Gas |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Authorized ROE |  | 9.70% | 9.70%
Chattanooga Gas |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Authorized ROE |  |  | 9.80%

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