GENERAL INFORMATION AND OTHER FINANCIAL DATA - BENEFIT CONTRIBUTIONS (Details) $ in Millions	9 Months Ended
	Sep. 30, 2025 USD ($)
Pension
Defined Benefit Plan Disclosure [Line Items]
Contributions	$ 158
Expected contributions, remainder of fiscal year	292
PBOP
Defined Benefit Plan Disclosure [Line Items]
Contributions	2
Expected contributions, remainder of fiscal year	16
SDG&E | Pension
Defined Benefit Plan Disclosure [Line Items]
Contributions	26
Expected contributions, remainder of fiscal year	56
SDG&E | PBOP
Defined Benefit Plan Disclosure [Line Items]
Contributions	0
Expected contributions, remainder of fiscal year	13
SoCalGas | Pension
Defined Benefit Plan Disclosure [Line Items]
Contributions	110
Expected contributions, remainder of fiscal year	196
SoCalGas | PBOP
Defined Benefit Plan Disclosure [Line Items]
Contributions	1
Expected contributions, remainder of fiscal year	$ 1