DERIVATIVE FINANCIAL INSTRUMENTS - INCOME STATEMENT (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Pretax gain (loss) reclassified from AOCI into earnings	$ (83)	$ 37	$ 1
Derivatives designated as hedging instruments: | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Pretax (loss) gain recognized in OCI	(84)	85	67
Pretax gain (loss) reclassified from AOCI into earnings	7	47	49
Derivatives designated as hedging instruments: | Cash Flow Hedges | Interest rate instruments | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Pretax (loss) gain recognized in OCI	(2)	36	45
Pretax gain (loss) reclassified from AOCI into earnings	7	11	(1)
Derivatives designated as hedging instruments: | Cash Flow Hedges | Interest rate instruments | Equity Earnings
Derivative Instruments, Gain (Loss) [Line Items]
Pretax (loss) gain recognized in OCI	(29)	21	20
Pretax gain (loss) reclassified from AOCI into earnings	10	23	48
Derivatives designated as hedging instruments: | Cash Flow Hedges | Foreign exchange instruments | Equity Earnings
Derivative Instruments, Gain (Loss) [Line Items]
Pretax (loss) gain recognized in OCI	(13)	12	(3)
Pretax gain (loss) reclassified from AOCI into earnings	(5)	6	(2)
Derivatives designated as hedging instruments: | Cash Flow Hedges | Foreign exchange instruments | Revenues: Energy- related businesses
Derivative Instruments, Gain (Loss) [Line Items]
Pretax (loss) gain recognized in OCI	(13)	14	(2)
Pretax gain (loss) reclassified from AOCI into earnings	(3)	5	(1)
Derivatives designated as hedging instruments: | Cash Flow Hedges | Foreign exchange instruments | Other income, net
Derivative Instruments, Gain (Loss) [Line Items]
Pretax gain (loss) reclassified from AOCI into earnings	(2)	2	(2)
Derivatives designated as hedging instruments: | Cash Flow Hedges | Interest rate and foreign exchange instruments | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Pretax (loss) gain recognized in OCI	0	0	7
Pretax gain (loss) reclassified from AOCI into earnings	0	0	1
Derivatives designated as hedging instruments: | Cash Flow Hedges | Interest rate and foreign exchange instruments | Other income, net
Derivative Instruments, Gain (Loss) [Line Items]
Pretax gain (loss) reclassified from AOCI into earnings	0	0	6
Derivatives designated as hedging instruments: | Fair Value Hedging | Foreign exchange instruments | Equity Earnings
Derivative Instruments, Gain (Loss) [Line Items]
Pretax (loss) gain recognized in OCI	(27)	2	0
Pretax gain (loss) reclassified from AOCI into earnings	0	0	0
Derivatives not designated as hedging instruments:
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative recognized in earnings	(170)	369	599
Derivatives not designated as hedging instruments: | Interest rate instruments
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative recognized in earnings	$ 0	$ 243	$ (47)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest Expense, Nonoperating	Interest Expense, Nonoperating	Interest Expense, Nonoperating
Derivatives not designated as hedging instruments: | Commodity contracts not subject to rate recovery | Revenues: Energy- related businesses
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative recognized in earnings	$ (6)	$ 223	$ 919
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Unregulated Operating Revenue	Unregulated Operating Revenue	Unregulated Operating Revenue
Derivatives not designated as hedging instruments: | Commodity contracts not subject to rate recovery | Energy-related business cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative recognized in earnings	$ (1)	$ 0	$ 0
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Cost of Product and Service Sold	Cost of Product and Service Sold	Cost of Product and Service Sold
Derivatives not designated as hedging instruments: | Commodity contracts subject to rate recovery | Cost of natural gas
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative recognized in earnings	$ (149)	$ (56)	$ (288)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Cost of Product and Service Sold	Cost of Product and Service Sold	Cost of Product and Service Sold
Derivatives not designated as hedging instruments: | Commodity contracts subject to rate recovery | Cost of electric fuel and purchased power
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative recognized in earnings	$ (14)	$ (41)	$ 15
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Cost of Product and Service Sold	Cost of Product and Service Sold	Cost of Product and Service Sold
SDG&E | Derivatives not designated as hedging instruments: | Commodity contracts subject to rate recovery
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative recognized in earnings	$ (14)	$ (41)	$ 15
SoCalGas | Derivatives designated as hedging instruments: | Cash Flow Hedges | Interest rate instruments | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Pretax (loss) gain recognized in OCI	0	0	0
Pretax gain (loss) reclassified from AOCI into earnings	(1)	(1)	(1)
SoCalGas | Derivatives not designated as hedging instruments: | Commodity contracts subject to rate recovery
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative recognized in earnings	$ (149)	$ (56)	$ (288)