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GENERAL INFORMATION AND OTHER FINANCIAL DATA - INCOME TAXES NARRATIVE (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Schedule Of Income Tax Expense And Effective Income Tax Rates [Line Items] |  |  |  |
Income tax expense (benefit) | $ 175 | $ 80 | $ 551 | $ 414
Deferred income tax liability for foreign earnings |  | 120 |  | 120
Southern California Gas Company |  |  |  |
Schedule Of Income Tax Expense And Effective Income Tax Rates [Line Items] |  |  |  |
Income tax expense (benefit) | (21) | $ 19 | 73 | $ 103
Southern California Gas Company | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |
Schedule Of Income Tax Expense And Effective Income Tax Rates [Line Items] |  |  |  |
Income tax expense (benefit) | $ (43) |  | $ (43) |

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