INCOME TAXES - NET OPERATING LOSSES AND TAX CREDIT CARRYFORWARDS (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
Valuation allowances	$ 192	$ 183
U.S. federal
Operating Loss Carryforwards [Line Items]
NOLs	2,192
Valuation allowances	115	128
U.S. federal | SoCalGas
Operating Loss Carryforwards [Line Items]
NOLs	1,540
U.S. federal | General business tax credits
Operating Loss Carryforwards [Line Items]
Tax credits	450
U.S. federal | Foreign tax credits
Operating Loss Carryforwards [Line Items]
Tax credits	766
U.S. state
Operating Loss Carryforwards [Line Items]
NOLs	3,662
Valuation allowances	51	31
U.S. state | SoCalGas
Operating Loss Carryforwards [Line Items]
NOLs	1,729
U.S. state | General business tax credits
Operating Loss Carryforwards [Line Items]
Tax credits	35
Non-U.S.
Operating Loss Carryforwards [Line Items]
NOLs	164
Valuation allowances	$ 26	$ 24