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REGULATORY MATTERS - COST OF CAPITAL & FERC (Details) - California Public Utilities Commission - Forecast | 24 Months Ended | 36 Months Ended
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Dec. 31, 2025 | Dec. 31, 2025
San Diego Gas and Electric Company |  |
Public Utilities, General Disclosures [Line Items] |  |
Authorized weighting (as a percent) | 100.00% | 100.00%
Weighted return on rate base (as a percent) | 7.67% | 7.18%
San Diego Gas and Electric Company | Authorized Weighting |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved debt capital structure (as a percent) | 45.25% | 45.25%
San Diego Gas and Electric Company | Authorized Weighting | Preferred Equity |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved return on equity (as a percent) | 2.75% | 2.75%
San Diego Gas and Electric Company | Authorized Weighting | Common Equity |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved return on equity (as a percent) | 52.00% | 52.00%
San Diego Gas and Electric Company | Return on Rate Base |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved debt capital structure (as a percent) | 4.34% | 4.05%
San Diego Gas and Electric Company | Return on Rate Base | Preferred Equity |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved return on equity (as a percent) | 6.22% | 6.22%
San Diego Gas and Electric Company | Return on Rate Base | Common Equity |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved return on equity (as a percent) | 10.65% | 9.95%
San Diego Gas and Electric Company | Weighted Return on Rate Base |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved debt capital structure (as a percent) | 1.96% | 1.83%
San Diego Gas and Electric Company | Weighted Return on Rate Base | Preferred Equity |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved return on equity (as a percent) | 0.17% | 0.17%
San Diego Gas and Electric Company | Weighted Return on Rate Base | Common Equity |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved return on equity (as a percent) | 5.54% | 5.17%
Southern California Gas Company |  |
Public Utilities, General Disclosures [Line Items] |  |
Authorized weighting (as a percent) | 100.00% | 100.00%
Weighted return on rate base (as a percent) | 7.67% | 7.10%
Southern California Gas Company | Authorized Weighting |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved debt capital structure (as a percent) | 45.60% | 45.60%
Southern California Gas Company | Authorized Weighting | Preferred Equity |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved return on equity (as a percent) | 2.40% | 2.40%
Southern California Gas Company | Authorized Weighting | Common Equity |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved return on equity (as a percent) | 52.00% | 52.00%
Southern California Gas Company | Return on Rate Base |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved debt capital structure (as a percent) | 4.54% | 4.07%
Southern California Gas Company | Return on Rate Base | Preferred Equity |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved return on equity (as a percent) | 6.00% | 6.00%
Southern California Gas Company | Return on Rate Base | Common Equity |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved return on equity (as a percent) | 10.50% | 9.80%
Southern California Gas Company | Weighted Return on Rate Base |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved debt capital structure (as a percent) | 2.07% | 1.86%
Southern California Gas Company | Weighted Return on Rate Base | Preferred Equity |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved return on equity (as a percent) | 0.14% | 0.14%
Southern California Gas Company | Weighted Return on Rate Base | Common Equity |  |
Public Utilities, General Disclosures [Line Items] |  |
Approved return on equity (as a percent) | 5.46% | 5.10%

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