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INCOME TAXES - NET OPERATING LOSSES AND TAX CREDIT CARRYFORWARDS (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Operating Loss Carryforwards [Line Items] |  |
Valuation allowances | $ 189 | $ 192
U.S. federal |  |
Operating Loss Carryforwards [Line Items] |  |
NOLs | 3,416 |
Valuation allowances | 108 | 115
U.S. federal | SoCalGas |  |
Operating Loss Carryforwards [Line Items] |  |
NOLs | 2,909 |
U.S. federal | SDG&E |  |
Operating Loss Carryforwards [Line Items] |  |
NOLs | 365 |
U.S. federal | General business tax credits |  |
Operating Loss Carryforwards [Line Items] |  |
Tax credits | 318 |
U.S. federal | General business tax credits | SoCalGas |  |
Operating Loss Carryforwards [Line Items] |  |
Tax credits | 4 |
U.S. federal | Corporate alternative minimum tax credits |  |
Operating Loss Carryforwards [Line Items] |  |
Tax credits | 389 |
U.S. federal | Foreign tax credits |  |
Operating Loss Carryforwards [Line Items] |  |
Tax credits | 766 |
U.S. state |  |
Operating Loss Carryforwards [Line Items] |  |
NOLs | 6,043 |
Valuation allowances | 51 | 51
U.S. state | SoCalGas |  |
Operating Loss Carryforwards [Line Items] |  |
NOLs | 3,991 |
U.S. state | SDG&E |  |
Operating Loss Carryforwards [Line Items] |  |
NOLs | 989 |
U.S. state | General business tax credits |  |
Operating Loss Carryforwards [Line Items] |  |
Tax credits | 27 |
Non-U.S. |  |
Operating Loss Carryforwards [Line Items] |  |
NOLs | 119 |
Valuation allowances | $ 30 | $ 26

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