REGULATORY MATTERS - COST OF CAPITAL & FERC (Details) - California Public Utilities Commission - USD ($)		1 Months Ended	12 Months Ended		36 Months Ended
	Dec. 31, 2019	Feb. 28, 2022	Sep. 30, 2021	Dec. 31, 2019	Dec. 31, 2025
Public Utilities, General Disclosures [Line Items]
Variable rate (as a percent)				1.00%
San Diego Gas and Electric Company
Public Utilities, General Disclosures [Line Items]
CCM benchmark rate (as a percent)				4.498%
Percentage below CCM benchmark rate			1.17%
Authorized weighting (as a percent)	100.00%
Weighted return on rate base (as a percent)	7.55%
San Diego Gas and Electric Company | Forecast
Public Utilities, General Disclosures [Line Items]
Authorized weighting (as a percent)					100.00%
Weighted return on rate base (as a percent)					7.56%
San Diego Gas and Electric Company | Authorized Weighting
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)	45.25%
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%
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%
San Diego Gas and Electric Company | Authorized Weighting | Forecast
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)					46.00%
San Diego Gas and Electric Company | Authorized Weighting | Forecast | Common Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					54.00%
San Diego Gas and Electric Company | Authorized Weighting | Forecast | Preferred Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					0.00%
San Diego Gas and Electric Company | Return on Rate Base
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)	4.59%
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)	10.20%
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%
San Diego Gas and Electric Company | Return on Rate Base | Forecast
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)					4.05%
San Diego Gas and Electric Company | Return on Rate Base | Forecast | Common Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					10.55%
San Diego Gas and Electric Company | Return on Rate Base | Forecast | Preferred Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					0.00%
San Diego Gas and Electric Company | Weighted Return on Rate Base
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)	2.08%
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)	5.30%
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%
San Diego Gas and Electric Company | Weighted Return on Rate Base | Forecast
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)					1.86%
San Diego Gas and Electric Company | Weighted Return on Rate Base | Forecast | Common Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					5.70%
San Diego Gas and Electric Company | Weighted Return on Rate Base | Forecast | Preferred Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					0.00%
Southern California Gas Company
Public Utilities, General Disclosures [Line Items]
CCM benchmark rate (as a percent)				4.029%
Authorized weighting (as a percent)	100.00%
Weighted return on rate base (as a percent)	7.30%
Southern California Gas Company | Forecast
Public Utilities, General Disclosures [Line Items]
Authorized weighting (as a percent)					100.00%
Weighted return on rate base (as a percent)					7.69%
Southern California Gas Company | Energy Efficiency Program Inquiry
Public Utilities, General Disclosures [Line Items]
Equity losses on investment		$ 10,000,000
Southern California Gas Company | Energy Efficiency and Advocacy
Public Utilities, General Disclosures [Line Items]
Equity losses on investment		$ 150,000
Southern California Gas Company | Authorized Weighting
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)	45.60%
Southern California Gas Company | Authorized Weighting | Common Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)	52.00%
Southern California Gas Company | Authorized Weighting | Preferred Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)	2.40%
Southern California Gas Company | Authorized Weighting | Forecast
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)					45.60%
Southern California Gas Company | Authorized Weighting | Forecast | Common Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					54.00%
Southern California Gas Company | Authorized Weighting | Forecast | Preferred Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					0.40%
Southern California Gas Company | Return on Rate Base
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)	4.23%
Southern California Gas Company | Return on Rate Base | Common Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)	10.05%
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%
Southern California Gas Company | Return on Rate Base | Forecast
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)					4.07%
Southern California Gas Company | Return on Rate Base | Forecast | Common Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					10.75%
Southern California Gas Company | Return on Rate Base | Forecast | Preferred Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					6.00%
Southern California Gas Company | Weighted Return on Rate Base
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)	1.93%
Southern California Gas Company | Weighted Return on Rate Base | Common Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)	5.23%
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%
Southern California Gas Company | Weighted Return on Rate Base | Forecast
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)					1.86%
Southern California Gas Company | Weighted Return on Rate Base | Forecast | Common Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					5.81%
Southern California Gas Company | Weighted Return on Rate Base | Forecast | Preferred Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					0.02%