INCOME TAXES - INCOME TAXES PAID (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Effective Income Tax Rate Reconciliation [Line Items]
U.S. federal	$ 62	$ 100	$ 3
Income tax payments, net	376	289	197
SDG&E
Effective Income Tax Rate Reconciliation [Line Items]
U.S. federal	9	(199)	40
Income tax payments, net	23	(225)	76
SoCalGas
Effective Income Tax Rate Reconciliation [Line Items]
U.S. federal	20	(11)	6
Income tax payments, net	69	(9)	6
California
Effective Income Tax Rate Reconciliation [Line Items]
U.S. state:	55	0	0
California | SDG&E
Effective Income Tax Rate Reconciliation [Line Items]
U.S. state:	14	(26)	36
California | SoCalGas
Effective Income Tax Rate Reconciliation [Line Items]
U.S. state:	49	2	0
Texas
Effective Income Tax Rate Reconciliation [Line Items]
U.S. state:	28	26	24
Other
Effective Income Tax Rate Reconciliation [Line Items]
U.S. state:	2	2	2
Mexico
Effective Income Tax Rate Reconciliation [Line Items]
Foreign	226	161	168
Other
Effective Income Tax Rate Reconciliation [Line Items]
Foreign	$ 3	$ 0	$ 0