EMPLOYEE BENEFIT PLANS - WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION (Details)	Dec. 31, 2025	Dec. 31, 2024
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.72%	5.74%
Interest crediting rate	4.70%	4.54%
Pension Plan | SDG&E
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.74%	5.75%
Interest crediting rate	4.70%	4.54%
Pension Plan | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.70%	5.70%
Interest crediting rate	4.70%	4.54%
Pension Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.70%	2.70%
Pension Plan | Minimum | SDG&E
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	4.50%	3.50%
Pension Plan | Minimum | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.70%	2.70%
Pension Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Pension Plan | Maximum | SDG&E
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Pension Plan | Maximum | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.73%	5.75%
Interest crediting rate	4.70%	4.54%
Other Postretirement Benefits Plan | SDG&E
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.70%	5.75%
Interest crediting rate	4.70%	4.54%
Other Postretirement Benefits Plan | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.75%	5.75%
Interest crediting rate	4.70%	4.54%
Other Postretirement Benefits Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.70%	2.70%
Other Postretirement Benefits Plan | Minimum | SDG&E
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	4.50%	3.50%
Other Postretirement Benefits Plan | Minimum | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.70%	2.70%
Other Postretirement Benefits Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Other Postretirement Benefits Plan | Maximum | SDG&E
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%
Other Postretirement Benefits Plan | Maximum | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	10.00%	10.00%