EMPLOYEE BENEFIT PLANS - EXPECTED CONTRIBUTIONS (Details) $ in Millions	Dec. 31, 2022 USD ($)
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Expected employer contributions	$ 233
Pension Plan | San Diego Gas and Electric Company
Defined Benefit Plan Disclosure [Line Items]
Expected employer contributions	53
Pension Plan | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Expected employer contributions	153
Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Expected employer contributions	5
Other Postretirement Benefits Plan | San Diego Gas and Electric Company
Defined Benefit Plan Disclosure [Line Items]
Expected employer contributions	1
Other Postretirement Benefits Plan | SoCalGas
Defined Benefit Plan Disclosure [Line Items]
Expected employer contributions	$ 1