DERIVATIVE FINANCIAL INSTRUMENTS - DERIVATIVE INSTRUMENTS ON THE CONDENSED BALANCE SHEET (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Other current assets
Derivatives not designated as hedging instruments:
Net amounts presented on the balance sheet	$ 31	$ 26
Additional cash collateral for commodity contracts not subject to rate recovery	87	74
Additional cash collateral for commodity contracts subject to rate recovery	6	22
Total	124	122
Other long-term assets
Derivatives not designated as hedging instruments:
Net amounts presented on the balance sheet	207	77
Additional cash collateral for commodity contracts not subject to rate recovery	0	0
Additional cash collateral for commodity contracts subject to rate recovery	0	0
Total	207	77
Other current liabilities
Derivatives not designated as hedging instruments:
Net amounts presented on the balance sheet	(39)	(221)
Additional cash collateral for commodity contracts not subject to rate recovery	0	0
Additional cash collateral for commodity contracts subject to rate recovery	0	0
Total	(39)	(221)
Deferred credits and other
Derivatives not designated as hedging instruments:
Net amounts presented on the balance sheet	(7)	(5)
Additional cash collateral for commodity contracts not subject to rate recovery	0	0
Additional cash collateral for commodity contracts subject to rate recovery	0	0
Total	(7)	(5)
Derivatives designated as hedging instruments: | Other current assets
Derivatives designated as hedging instruments:
Interest rate instruments	22	17
Foreign exchange instruments	0	0
Derivatives designated as hedging instruments: | Other long-term assets
Derivatives designated as hedging instruments:
Interest rate instruments	201	70
Foreign exchange instruments	0	0
Derivatives designated as hedging instruments: | Other current liabilities
Derivatives designated as hedging instruments:
Interest rate instruments	0	0
Foreign exchange instruments	(9)	(9)
Derivatives designated as hedging instruments: | Deferred credits and other
Derivatives designated as hedging instruments:
Interest rate instruments	0	0
Foreign exchange instruments	0	0
Derivatives not designated as hedging instruments: | Other current assets
Derivatives not designated as hedging instruments:
Commodity contracts not subject to rate recovery	233	173
Associated offsetting commodity contracts	(229)	(169)
Commodity contracts subject to rate recovery	8	10
Associated offsetting commodity contracts	(3)	(5)
Associated offsetting cash collateral	0	0
Derivatives not designated as hedging instruments: | Other long-term assets
Derivatives not designated as hedging instruments:
Commodity contracts not subject to rate recovery	49	52
Associated offsetting commodity contracts	(48)	(51)
Commodity contracts subject to rate recovery	8	8
Associated offsetting commodity contracts	(3)	(2)
Associated offsetting cash collateral	0	0
Derivatives not designated as hedging instruments: | Other current liabilities
Derivatives not designated as hedging instruments:
Commodity contracts not subject to rate recovery	(234)	(170)
Associated offsetting commodity contracts	229	169
Commodity contracts subject to rate recovery	(42)	(228)
Associated offsetting commodity contracts	3	5
Associated offsetting cash collateral	14	12
Derivatives not designated as hedging instruments: | Deferred credits and other
Derivatives not designated as hedging instruments:
Commodity contracts not subject to rate recovery	(52)	(56)
Associated offsetting commodity contracts	48	51
Commodity contracts subject to rate recovery	(18)	(9)
Associated offsetting commodity contracts	3	2
Associated offsetting cash collateral	12	7
SDG&E | Other current assets
Derivatives not designated as hedging instruments:
Net amounts presented on the balance sheet	4	4
Additional cash collateral for commodity contracts subject to rate recovery	5	21
Total	9	25
SDG&E | Other long-term assets
Derivatives not designated as hedging instruments:
Net amounts presented on the balance sheet	5	6
Additional cash collateral for commodity contracts subject to rate recovery	0	0
Total	5	6
SDG&E | Other current liabilities
Derivatives not designated as hedging instruments:
Net amounts presented on the balance sheet	(4)	(1)
Additional cash collateral for commodity contracts subject to rate recovery	0	0
Total	(4)	(1)
SDG&E | Deferred credits and other
Derivatives not designated as hedging instruments:
Net amounts presented on the balance sheet	0	0
Additional cash collateral for commodity contracts subject to rate recovery	0	0
Total	0	0
SDG&E | Derivatives not designated as hedging instruments: | Other current assets
Derivatives not designated as hedging instruments:
Commodity contracts subject to rate recovery	7	9
Associated offsetting commodity contracts	(3)	(5)
Associated offsetting cash collateral	0	0
SDG&E | Derivatives not designated as hedging instruments: | Other long-term assets
Derivatives not designated as hedging instruments:
Commodity contracts subject to rate recovery	8	8
Associated offsetting commodity contracts	(3)	(2)
Associated offsetting cash collateral	0	0
SDG&E | Derivatives not designated as hedging instruments: | Other current liabilities
Derivatives not designated as hedging instruments:
Commodity contracts subject to rate recovery	(21)	(18)
Associated offsetting commodity contracts	3	5
Associated offsetting cash collateral	14	12
SDG&E | Derivatives not designated as hedging instruments: | Deferred credits and other
Derivatives not designated as hedging instruments:
Commodity contracts subject to rate recovery	(15)	(9)
Associated offsetting commodity contracts	3	2
Associated offsetting cash collateral	12	7
SoCalGas | Other current assets
Derivatives not designated as hedging instruments:
Net amounts presented on the balance sheet	1	1
Additional cash collateral for commodity contracts subject to rate recovery	1	1
Total	2	2
SoCalGas | Other long-term assets
Derivatives not designated as hedging instruments:
Net amounts presented on the balance sheet	0	0
Additional cash collateral for commodity contracts subject to rate recovery	0	0
Total	0	0
SoCalGas | Other current liabilities
Derivatives not designated as hedging instruments:
Net amounts presented on the balance sheet	(21)	(210)
Additional cash collateral for commodity contracts subject to rate recovery	0	0
Total	(21)	(210)
SoCalGas | Deferred credits and other
Derivatives not designated as hedging instruments:
Net amounts presented on the balance sheet	(3)	0
Additional cash collateral for commodity contracts subject to rate recovery	0	0
Total	(3)	0
SoCalGas | Derivatives not designated as hedging instruments: | Other current assets
Derivatives not designated as hedging instruments:
Commodity contracts subject to rate recovery	1	1
SoCalGas | Derivatives not designated as hedging instruments: | Other long-term assets
Derivatives not designated as hedging instruments:
Commodity contracts subject to rate recovery	0	0
SoCalGas | Derivatives not designated as hedging instruments: | Other current liabilities
Derivatives not designated as hedging instruments:
Commodity contracts subject to rate recovery	(21)	(210)
SoCalGas | Derivatives not designated as hedging instruments: | Deferred credits and other
Derivatives not designated as hedging instruments:
Commodity contracts subject to rate recovery	$ (3)	$ 0