EMPLOYEE BENEFIT PLANS - ASSUMED HEALTH CARE COST TREND RATES (Details) - Other Postretirement Benefits Plan	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Pre-65 retirees
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	6.75%	6.50%	6.00%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.75%	4.75%	4.75%
Retirees aged 65 years and older
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	8.50%	4.50%	4.50%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.50%	4.50%	4.50%
SDG&E | Pre-65 retirees
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	6.75%	6.50%	6.00%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.75%	4.75%	4.75%
SDG&E | Retirees aged 65 years and older
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	8.50%	4.50%	4.50%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.50%	4.50%	4.50%
SoCalGas | Pre-65 retirees
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	6.75%	6.50%	6.00%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.75%	4.75%	4.75%
SoCalGas | Retirees aged 65 years and older
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year	8.50%	4.50%	4.50%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.50%	4.50%	4.50%