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REGULATORY MATTERS - FERC RATE MATTERS (Details) - SDG&E | Jun. 30, 2025 | Oct. 31, 2024 | Sep. 30, 2024
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Public Utilities, General Disclosures [Line Items] |  |  |
FERC requirement to maintain common equity ratio at or above, base (as a percent) |  |  | 10.10%
TO5 Settlement | FERC |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
FERC requirement to maintain common equity ratio, at or above (percent) | 10.60% |  |
FERC requirement to maintain common equity ratio at or above, base (as a percent) | 10.10% |  |
TO6 Filing | FERC |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
FERC requirement to maintain common equity ratio, at or above (percent) |  | 12.25% |
FERC requirement to maintain common equity ratio at or above, base (as a percent) |  | 11.75% |

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