FAIR VALUE MEASUREMENTS - RECURRING FAIR VALUE MEASURES (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Assets, Fair Value Disclosure [Abstract]
Netting adjustment	$ 50	$ 20
Total	1,354	1,347
Liabilities, Fair Value Disclosure [Abstract]
Netting adjustment	(83)	(59)
Total	135	70
Disposal Group Held-for-sale
Assets, Fair Value Disclosure [Abstract]
Netting adjustment	33
Total	309
Liabilities, Fair Value Disclosure [Abstract]
Netting adjustment	(5)
Derivative liabilities	69
Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	902	890
Short-term investments held in Rabbi Trust	49	64
Support Agreement, net of related guarantee fees	41	25
Netting adjustment	17
Total	1,045
Short-term investments, primarily cash equivalents | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	12	10
Equity securities | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	288	298
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	47	67
Municipal bonds | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	300	287
Other securities | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	255	228
Total debt securities | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	602	582
Commodity contracts subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Netting adjustment		18
Derivative assets, Total		29
Liabilities, Fair Value Disclosure [Abstract]
Netting adjustment		(21)
Derivative liabilities		44
Commodity contracts subject to rate recovery | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Netting adjustment	17
Derivative assets, Total	53
Liabilities, Fair Value Disclosure [Abstract]
Netting adjustment	(78)
Derivative liabilities	66
Interest rate instruments
Assets, Fair Value Disclosure [Abstract]
Netting adjustment		0
Derivative assets, Total		293
Interest rate instruments | Disposal Group Held-for-sale
Assets, Fair Value Disclosure [Abstract]
Netting adjustment	0
Derivative assets, Total	267
Foreign exchange instruments
Assets, Fair Value Disclosure [Abstract]
Netting adjustment		0
Derivative assets, Total		5
Foreign exchange instruments | Disposal Group Held-for-sale
Liabilities, Fair Value Disclosure [Abstract]
Netting adjustment	0
Derivative liabilities	8
Commodity contracts not subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Netting adjustment		2
Derivative assets, Total		41
Liabilities, Fair Value Disclosure [Abstract]
Netting adjustment		(38)
Derivative liabilities		26
Commodity contracts not subject to rate recovery | Disposal Group Held-for-sale
Assets, Fair Value Disclosure [Abstract]
Netting adjustment	33
Derivative assets, Total	42
Liabilities, Fair Value Disclosure [Abstract]
Netting adjustment	(5)
Derivative liabilities	61
Level 1
Assets, Fair Value Disclosure [Abstract]
Total	373	414
Liabilities, Fair Value Disclosure [Abstract]
Total	37	21
Level 1 | Disposal Group Held-for-sale
Assets, Fair Value Disclosure [Abstract]
Total	0
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	0
Level 1 | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	322	344
Short-term investments held in Rabbi Trust	49	64
Support Agreement, net of related guarantee fees	0	0
Total	373
Level 1 | Short-term investments, primarily cash equivalents | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	9	8
Level 1 | Equity securities | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	285	295
Level 1 | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	28	41
Level 1 | Municipal bonds | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
Level 1 | Other securities | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
Level 1 | Total debt securities | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	28	41
Level 1 | Commodity contracts subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting		6
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting		20
Level 1 | Commodity contracts subject to rate recovery | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	2
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	37
Level 1 | Interest rate instruments
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting		0
Level 1 | Interest rate instruments | Disposal Group Held-for-sale
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	0
Level 1 | Foreign exchange instruments
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting		0
Level 1 | Foreign exchange instruments | Disposal Group Held-for-sale
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	0
Level 1 | Commodity contracts not subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting		0
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting		1
Level 1 | Commodity contracts not subject to rate recovery | Disposal Group Held-for-sale
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	0
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	0
Level 2
Assets, Fair Value Disclosure [Abstract]
Total	879	884
Liabilities, Fair Value Disclosure [Abstract]
Total	125	108
Level 2 | Disposal Group Held-for-sale
Assets, Fair Value Disclosure [Abstract]
Total	275
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	18
Level 2 | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	580	546
Short-term investments held in Rabbi Trust	0	0
Support Agreement, net of related guarantee fees	0	0
Total	604
Level 2 | Short-term investments, primarily cash equivalents | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	3	2
Level 2 | Equity securities | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	3	3
Level 2 | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	19	26
Level 2 | Municipal bonds | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	300	287
Level 2 | Other securities | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	255	228
Level 2 | Total debt securities | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	574	541
Level 2 | Commodity contracts subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting		1
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting		45
Level 2 | Commodity contracts subject to rate recovery | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	24
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	107
Level 2 | Interest rate instruments
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting		293
Level 2 | Interest rate instruments | Disposal Group Held-for-sale
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	267
Level 2 | Foreign exchange instruments
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting		5
Level 2 | Foreign exchange instruments | Disposal Group Held-for-sale
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	8
Level 2 | Commodity contracts not subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting		39
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting		63
Level 2 | Commodity contracts not subject to rate recovery | Disposal Group Held-for-sale
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	8
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	10
Level 3
Assets, Fair Value Disclosure [Abstract]
Total	52	29
Liabilities, Fair Value Disclosure [Abstract]
Total	56	0
Level 3 | Disposal Group Held-for-sale
Assets, Fair Value Disclosure [Abstract]
Total	1
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	56
Level 3 | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
Short-term investments held in Rabbi Trust	0	0
Support Agreement, net of related guarantee fees	41	25
Total	51
Level 3 | Short-term investments, primarily cash equivalents | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
Level 3 | Equity securities | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
Level 3 | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
Level 3 | Municipal bonds | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
Level 3 | Other securities | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
Level 3 | Total debt securities | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
Level 3 | Commodity contracts subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting		4
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting		0
Level 3 | Commodity contracts subject to rate recovery | Continuing Operations
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	10
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	0
Level 3 | Interest rate instruments
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting		0
Level 3 | Interest rate instruments | Disposal Group Held-for-sale
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	0
Level 3 | Foreign exchange instruments
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting		0
Level 3 | Foreign exchange instruments | Disposal Group Held-for-sale
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	0
Level 3 | Commodity contracts not subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting		0
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting		0
Derivative liabilities	55
Level 3 | Commodity contracts not subject to rate recovery | Disposal Group Held-for-sale
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	1
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	56
SDG&E
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	902	890
Netting adjustment	12	17
Total	926	915
SDG&E | Short-term investments, primarily cash equivalents
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	12	10
SDG&E | Equity securities
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	288	298
SDG&E | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	47	67
SDG&E | Municipal bonds
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	300	287
SDG&E | Other securities
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	255	228
SDG&E | Total debt securities
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	602	582
SDG&E | Commodity contracts subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Netting adjustment	12	17
Derivative assets, Total	24	25
Liabilities, Fair Value Disclosure [Abstract]
Netting adjustment	(17)	(18)
Derivative liabilities	0	1
SDG&E | Level 1
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	322	344
Total	324	348
SDG&E | Level 1 | Short-term investments, primarily cash equivalents
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	9	8
SDG&E | Level 1 | Equity securities
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	285	295
SDG&E | Level 1 | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	28	41
SDG&E | Level 1 | Municipal bonds
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
SDG&E | Level 1 | Other securities
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
SDG&E | Level 1 | Total debt securities
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	28	41
SDG&E | Level 1 | Commodity contracts subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	2	4
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	17	18
SDG&E | Level 2
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	580	546
Total	580	546
SDG&E | Level 2 | Short-term investments, primarily cash equivalents
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	3	2
SDG&E | Level 2 | Equity securities
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	3	3
SDG&E | Level 2 | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	19	26
SDG&E | Level 2 | Municipal bonds
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	300	287
SDG&E | Level 2 | Other securities
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	255	228
SDG&E | Level 2 | Total debt securities
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	574	541
SDG&E | Level 2 | Commodity contracts subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	0	0
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	0	1
SDG&E | Level 3
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
Total	10	4
SDG&E | Level 3 | Short-term investments, primarily cash equivalents
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
SDG&E | Level 3 | Equity securities
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
SDG&E | Level 3 | Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
SDG&E | Level 3 | Municipal bonds
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
SDG&E | Level 3 | Other securities
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
SDG&E | Level 3 | Total debt securities
Assets, Fair Value Disclosure [Abstract]
Total nuclear decommissioning trusts	0	0
SDG&E | Level 3 | Commodity contracts subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	10	4
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	0	0
SoCalGas | Commodity contracts subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Netting adjustment	5	1
Derivative assets, Total	29	4
Liabilities, Fair Value Disclosure [Abstract]
Netting adjustment	(61)	(3)
Derivative liabilities	66	43
SoCalGas | Level 1 | Commodity contracts subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	0	2
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	20	2
SoCalGas | Level 2 | Commodity contracts subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	24	1
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	107	44
SoCalGas | Level 3 | Commodity contracts subject to rate recovery
Assets, Fair Value Disclosure [Abstract]
Derivative asset, before netting	0	0
Liabilities, Fair Value Disclosure [Abstract]
Derivative liability, before netting	$ 0	$ 0