REGULATORY MATTERS - COST OF CAPITAL (Details) - California Public Utilities Commission	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2025	Dec. 31, 2024
SDG&E
Public Utilities, General Disclosures [Line Items]
Authorized weighting (as a percent)	100.00%
Weighted return on rate base (as a percent)			7.67%
SDG&E | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested weighting (as a percent)	100.00%
Weighted requested return on rate base (as a percent)	8.21%
SDG&E | Forecast
Public Utilities, General Disclosures [Line Items]
Weighted return on rate base (as a percent)		7.45%
SDG&E | Authorized weighting
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)	45.25%
SDG&E | Authorized weighting | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested debt capital structure (as a percent)	46.00%
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 | Preferred Equity | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested return on equity (as a percent)	0.00%
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 | Common Equity | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested return on equity (as a percent)	54.00%
SDG&E | Return on rate base
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)			4.34%
SDG&E | Return on rate base | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested debt capital structure (as a percent)	4.62%
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 | Preferred Equity | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested 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)			10.65%
SDG&E | Return on rate base | Common Equity | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested return on equity (as a percent)	11.25%
SDG&E | Return on rate base | Forecast
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)		4.34%
SDG&E | Return on rate base | Forecast | Preferred Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)		6.22%
SDG&E | Return on rate base | Forecast | Common Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)		10.23%
SDG&E | Weighted return on rate base
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)			1.96%
SDG&E | Weighted return on rate base | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested debt capital structure (as a percent)	2.13%
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 | Preferred Equity | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested return on equity (as a percent)	0.00%
SDG&E | Weighted return on rate base | Common Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)			5.54%
SDG&E | Weighted return on rate base | Common Equity | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested return on equity (as a percent)	6.08%
SDG&E | Weighted return on rate base | Forecast
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
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
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)		5.32%
SoCalGas
Public Utilities, General Disclosures [Line Items]
Authorized weighting (as a percent)	100.00%
Weighted return on rate base (as a percent)			7.67%
SoCalGas | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested weighting (as a percent)	100.00%
Weighted requested return on rate base (as a percent)	8.15%
SoCalGas | Forecast
Public Utilities, General Disclosures [Line Items]
Weighted return on rate base (as a percent)		7.49%
SoCalGas | Authorized weighting
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)	45.60%
SoCalGas | Authorized weighting | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested 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 | Preferred Equity | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested 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 | Common Equity | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested 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)			4.54%
SoCalGas | Return on rate base | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested debt capital structure (as a percent)	5.02%
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 | Preferred Equity | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested 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)			10.50%
SoCalGas | Return on rate base | Common Equity | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested return on equity (as a percent)	11.00%
SoCalGas | Return on rate base | Forecast
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)		4.63%
SoCalGas | Return on rate base | Forecast | Preferred Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)		6.00%
SoCalGas | Return on rate base | Forecast | Common Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)		10.08%
SoCalGas | Weighted return on rate base
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)			2.07%
SoCalGas | Weighted return on rate base | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested debt capital structure (as a percent)	2.29%
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 | Preferred Equity | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested 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)			5.46%
SoCalGas | Weighted return on rate base | Common Equity | Proposed Cost of Capital 2026-2028
Public Utilities, General Disclosures [Line Items]
Requested return on equity (as a percent)	5.72%
SoCalGas | Weighted return on rate base | Forecast
Public Utilities, General Disclosures [Line Items]
Approved debt capital structure (as a percent)		2.11%
SoCalGas | Weighted return on rate base | Forecast | Preferred Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)		0.14%
SoCalGas | Weighted return on rate base | Forecast | Common Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)		5.24%