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REGULATORY MATTERS - FERC Rate Matters (Details) - SDG&E - FERC - USD ($) $ in Millions | 1 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 | Oct. 31, 2024 | Sep. 30, 2024
TO5 Settlement |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Minimum common equity ratio (as a percent) | 10.60% |  |
FERC requirement to maintain common equity ratio at or above, base (as a percent) | 10.10% |  |
Settlement charges | $ 120 |  |
Settlement charges, net | 89 |  |
TO5 Settlement | Electric Revenues |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Settlement charges | 94 |  |
TO5 Settlement | Other Income, Net |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Settlement charges | $ 26 |  |
TO6 Filing |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Minimum common equity ratio (as a percent) | 12.25% |  |
FERC requirement to maintain common equity ratio at or above, base (as a percent) |  | 11.75% | 10.10%

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