INCOME TAXES - NARRATIVE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Effect of Changes in Legislation of Income Tax (Expense) [Line Items]
Income tax benefit (expense)	$ (490)	$ (556)	$ (99)
Foreign undistributed earnings	2,400
Undistributed earnings of foreign subsidiaries considered to be indefinitely reinvested	70
Foreign earnings repatriated	108		38
Accrual for interest and penalties	15	13
Interest and penalties expense	2
SoCalGas
Schedule of Effect of Changes in Legislation of Income Tax (Expense) [Line Items]
Income tax benefit (expense)	5	(138)	310
SoCalGas | Change in Accounting Method Accounted for as Change in Estimate
Schedule of Effect of Changes in Legislation of Income Tax (Expense) [Line Items]
Income tax benefit (expense)	97
SDG&E
Schedule of Effect of Changes in Legislation of Income Tax (Expense) [Line Items]
Income tax benefit (expense)	26	$ (182)	$ (201)
SDG&E | Change in Accounting Method Accounted for as Change in Estimate
Schedule of Effect of Changes in Legislation of Income Tax (Expense) [Line Items]
Income tax benefit (expense)	34
Cumulative Effect, Period of Adoption, Adjustment | SoCalGas
Schedule of Effect of Changes in Legislation of Income Tax (Expense) [Line Items]
Income tax benefit (expense)	43
Non-U.S.
Schedule of Effect of Changes in Legislation of Income Tax (Expense) [Line Items]
Undistributed earnings of foreign subsidiaries considered to be indefinitely reinvested	700
Income tax expense	$ 120