INCOME TAXES - NET OPERATING LOSSES AND TAX CREDIT CARRYFORWARDS (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Operating Loss Carryforwards [Line Items]
Valuation allowances	$ 503	$ 189
U.S. federal
Operating Loss Carryforwards [Line Items]
NOLs	3,091
Valuation allowances	406	108
U.S. federal | SoCalGas
Operating Loss Carryforwards [Line Items]
NOLs	2,857
U.S. federal | SDG&E
Operating Loss Carryforwards [Line Items]
NOLs	279
U.S. federal | General business tax credits
Operating Loss Carryforwards [Line Items]
Tax credits	126
U.S. federal | General business tax credits | SDG&E
Operating Loss Carryforwards [Line Items]
Tax credits	1
U.S. federal | Corporate alternative minimum tax credits
Operating Loss Carryforwards [Line Items]
Tax credits	676
U.S. federal | Foreign tax credits
Operating Loss Carryforwards [Line Items]
Tax credits	706
U.S. state
Operating Loss Carryforwards [Line Items]
NOLs	5,912
Valuation allowances	47	51
U.S. state | SoCalGas
Operating Loss Carryforwards [Line Items]
NOLs	3,917
U.S. state | SDG&E
Operating Loss Carryforwards [Line Items]
NOLs	909
U.S. state | General business tax credits
Operating Loss Carryforwards [Line Items]
Tax credits	24
Non-U.S.
Operating Loss Carryforwards [Line Items]
NOLs	782
Valuation allowances	50	$ 30
Non-U.S. | General business tax credits
Operating Loss Carryforwards [Line Items]
Tax credits	$ 5