INCOME TAXES - COMPONENTS OF INCOME TAX EXPENSE (BENEFIT) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Expense (Benefit), Continuing Operations [Abstract]
U.S.	$ 1,449	$ 346	$ 1,461
Non-U.S.	560	487	322
Pretax income	2,009	833	1,783
Current:
U.S. state	(1)	(6)	(22)
Non-U.S.	165	183	112
Total	164	177	90
Deferred:
U.S. federal	248	(9)	157
U.S. state	50	(37)	36
Non-U.S.	94	(31)	(34)
Total	392	(77)	159
Deferred investment tax credits	0	(1)	0
Total income tax expense	556	99	249
San Diego Gas and Electric Company
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Pretax income	1,097	1,020	1,014
Current:
U.S. federal	76	35	121
U.S. state	13	13	34
Total	89	48	155
Deferred:
U.S. federal	54	99	11
U.S. state	38	54	25
Total	92	153	36
Deferred investment tax credits	1	0	(1)
Total income tax expense	182	201	190
SoCalGas
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Pretax income	738	(736)	601
Current:
U.S. federal	(5)	134	163
U.S. state	(3)	50	45
Total	(8)	184	208
Deferred:
U.S. federal	125	(334)	(85)
U.S. state	22	(159)	(28)
Total	147	(493)	(113)
Deferred investment tax credits	(1)	(1)	1
Total income tax expense	$ 138	$ (310)	$ 96