INCOME TAXES - UNRECOGNIZED TAX BENEFITS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of Unrecognized Tax Benefits
Beginning balance	$ 278	$ 304	$ 99
Increase in prior period tax positions	308	16	3
Decrease in prior period tax positions	(63)	(2)	(2)
Decrease in current period tax positions	(21)	0	0
Settlements with tax authorities	(16)	(43)	0
Expiration of statutes of limitations	0	(1)	0
Increase in current period tax positions	6	4	204
Ending balance	492	278	304
Of the total, amounts related to tax positions that, if recognized, in future years, would decrease the effective tax rate	(224)	(117)	(105)
Of the total, amounts related to tax positions that, if recognized, in future years, would increase the effective tax rate	1	38	34
SDG&E
Reconciliation of Unrecognized Tax Benefits
Beginning balance	14	14	13
Increase in prior period tax positions	2	0	1
Settlements with tax authorities	(2)	0	0
Ending balance	14	14	14
Of the total, amounts related to tax positions that, if recognized, in future years, would decrease the effective tax rate	(11)	(11)	(11)
Of the total, amounts related to tax positions that, if recognized, in future years, would increase the effective tax rate	1	1	1
SoCalGas
Reconciliation of Unrecognized Tax Benefits
Beginning balance	77	72	68
Increase in prior period tax positions	1	1	1
Decrease in prior period tax positions	(47)	0	0
Settlements with tax authorities	(2)	0	0
Increase in current period tax positions	0	4	3
Ending balance	29	77	72
Of the total, amounts related to tax positions that, if recognized, in future years, would decrease the effective tax rate	(29)	(67)	(63)
Of the total, amounts related to tax positions that, if recognized, in future years, would increase the effective tax rate	$ 0	$ 37	$ 33