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REGULATORY MATTERS - COST OF CAPITAL (Details) - California Public Utilities Commission | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
SDG&E |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Authorized weighting (as a percent) |  |  | 100.00%
Weighted return on rate base (as a percent) |  |  | 7.18%
SDG&E | Forecast | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) | 10.23% |  |
Authorized weighting (as a percent) |  | 100.00% |
Weighted return on rate base (as a percent) |  | 7.67% |
SDG&E | Authorized weighting |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved debt capital structure (as a percent) |  |  | 45.25%
SDG&E | Authorized weighting | Preferred Equity |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  |  | 2.75%
SDG&E | Authorized weighting | Common Equity |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  |  | 52.00%
SDG&E | Authorized weighting | Forecast | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved debt capital structure (as a percent) |  | 45.25% |
SDG&E | Authorized weighting | Forecast | Preferred Equity | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  | 2.75% |
SDG&E | Authorized weighting | Forecast | Common Equity | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  | 52.00% |
SDG&E | Return on rate base |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved debt capital structure (as a percent) |  |  | 4.05%
SDG&E | Return on rate base | Preferred Equity |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  |  | 6.22%
SDG&E | Return on rate base | Common Equity |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  |  | 9.95%
SDG&E | Return on rate base | Forecast | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved debt capital structure (as a percent) |  | 4.34% |
SDG&E | Return on rate base | Forecast | Preferred Equity | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  | 6.22% |
SDG&E | Return on rate base | Forecast | Common Equity | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  | 10.65% |
SDG&E | Weighted return on rate base |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved debt capital structure (as a percent) |  |  | 1.83%
SDG&E | Weighted return on rate base | Preferred Equity |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  |  | 0.17%
SDG&E | Weighted return on rate base | Common Equity |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  |  | 5.17%
SDG&E | Weighted return on rate base | Forecast | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved debt capital structure (as a percent) |  | 1.96% |
SDG&E | Weighted return on rate base | Forecast | Preferred Equity | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  | 0.17% |
SDG&E | Weighted return on rate base | Forecast | Common Equity | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  | 5.54% |
SoCalGas |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Authorized weighting (as a percent) |  |  | 100.00%
Weighted return on rate base (as a percent) |  |  | 7.10%
SoCalGas | Forecast | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) | 10.08% |  |
Authorized weighting (as a percent) |  | 100.00% |
Weighted return on rate base (as a percent) |  | 7.67% |
SoCalGas | Authorized weighting |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved debt capital structure (as a percent) |  |  | 45.60%
SoCalGas | Authorized weighting | Preferred Equity |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  |  | 2.40%
SoCalGas | Authorized weighting | Common Equity |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  |  | 52.00%
SoCalGas | Authorized weighting | Forecast | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved debt capital structure (as a percent) |  | 45.60% |
SoCalGas | Authorized weighting | Forecast | Preferred Equity | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  | 2.40% |
SoCalGas | Authorized weighting | Forecast | Common Equity | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  | 52.00% |
SoCalGas | Return on rate base |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved debt capital structure (as a percent) |  |  | 4.07%
SoCalGas | Return on rate base | Preferred Equity |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  |  | 6.00%
SoCalGas | Return on rate base | Common Equity |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  |  | 9.80%
SoCalGas | Return on rate base | Forecast | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved debt capital structure (as a percent) |  | 4.54% |
SoCalGas | Return on rate base | Forecast | Preferred Equity | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  | 6.00% |
SoCalGas | Return on rate base | Forecast | Common Equity | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  | 10.50% |
SoCalGas | Weighted return on rate base |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved debt capital structure (as a percent) |  |  | 1.86%
SoCalGas | Weighted return on rate base | Preferred Equity |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  |  | 0.14%
SoCalGas | Weighted return on rate base | Common Equity |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  |  | 5.10%
SoCalGas | Weighted return on rate base | Forecast | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved debt capital structure (as a percent) |  | 2.07% |
SoCalGas | Weighted return on rate base | Forecast | Preferred Equity | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  | 0.14% |
SoCalGas | Weighted return on rate base | Forecast | Common Equity | Subsequent Event |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity (as a percent) |  | 5.46% |

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