EMPLOYEE BENEFIT PLANS - TARGET ASSET ALLOCATIONS FOR SEMPRA’S PENSION MASTER TRUST (Details)	Dec. 31, 2025
Return Seeking Assets | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Targeted plan asset allocations	35.00%
Return Seeking Assets | Pension Plan | SDG&E
Defined Benefit Plan Disclosure [Line Items]
Targeted plan asset allocations	40.00%
Return Seeking Assets | Pension Plan | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Targeted plan asset allocations	35.00%
Return Seeking Assets | Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Targeted plan asset allocations	45.00%
Return Seeking Assets | Other Postretirement Benefits Plan | SDG&E and SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Targeted plan asset allocations	45.00%
Return Seeking Assets | Other Postretirement Benefits Plan | SDG&E and SoCalGas | Voluntary Employee Beneficiary Association Trust
Defined Benefit Plan Disclosure [Line Items]
Targeted plan asset allocations	30.00%
Risk Mitigating Assets | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Targeted plan asset allocations	65.00%
Risk Mitigating Assets | Pension Plan | SDG&E
Defined Benefit Plan Disclosure [Line Items]
Targeted plan asset allocations	60.00%
Risk Mitigating Assets | Pension Plan | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Targeted plan asset allocations	65.00%
Risk Mitigating Assets | Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Targeted plan asset allocations	55.00%
Risk Mitigating Assets | Other Postretirement Benefits Plan | SDG&E and SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Targeted plan asset allocations	55.00%
Risk Mitigating Assets | Other Postretirement Benefits Plan | SDG&E and SoCalGas | Voluntary Employee Beneficiary Association Trust
Defined Benefit Plan Disclosure [Line Items]
Targeted plan asset allocations	70.00%