INCOME TAXES - NET OPERATING LOSSES AND TAX CREDIT CARRYFORWARDS (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Operating Loss Carryforwards [Line Items]
Less: valuation allowances	$ 233	$ 503
Disposal Group Held-for-sale | SI Partners
Operating Loss Carryforwards [Line Items]
Valuation allowance, assets held for sale	50
U.S. federal
Operating Loss Carryforwards [Line Items]
Less: valuation allowances	137	406
NOLs	3,169
U.S. federal | SDG&E
Operating Loss Carryforwards [Line Items]
NOLs	94
U.S. federal | SoCalGas
Operating Loss Carryforwards [Line Items]
NOLs	2,489
U.S. federal | General business tax credits
Operating Loss Carryforwards [Line Items]
Tax credits	260
U.S. federal | General business tax credits | SDG&E
Operating Loss Carryforwards [Line Items]
Tax credits	92
U.S. federal | Corporate alternative minimum tax credits
Operating Loss Carryforwards [Line Items]
Tax credits	630
U.S. federal | Foreign tax credits
Operating Loss Carryforwards [Line Items]
Tax credits	704
U.S. state
Operating Loss Carryforwards [Line Items]
Less: valuation allowances	96	47
NOLs	5,762
U.S. state | SDG&E
Operating Loss Carryforwards [Line Items]
NOLs	818
U.S. state | SoCalGas
Operating Loss Carryforwards [Line Items]
NOLs	3,952
U.S. state | General business tax credits
Operating Loss Carryforwards [Line Items]
Tax credits	20
Foreign
Operating Loss Carryforwards [Line Items]
Less: valuation allowances	0	$ 50
NOLs	693
Foreign | General business tax credits
Operating Loss Carryforwards [Line Items]
Tax credits	$ 5