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FAIR VALUE MEASUREMENTS - FINANCIAL INSTRUMENTS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Notes receivable, allowance for credit losses | $ 5 | $ 6
Notes receivable, unamortized issuance costs | 3 | 4
Unamortized discount (net of premium) and debt issuance costs | 382 | 322
Finance lease obligations | 1,315 | 1,340
Carrying Amount |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term note receivable | 351 | 334
Long-term amounts due to unconsolidated affiliates | 352 | 312
Total long-term debt | 32,899 | 27,716
Fair Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term note receivable | 334 | 318
Long-term amounts due to unconsolidated affiliates | 324 | 283
Total long-term debt | 30,193 | 25,617
Fair Value | Level 1 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term note receivable | 0 | 0
Long-term amounts due to unconsolidated affiliates | 0 | 0
Total long-term debt | 0 | 0
Fair Value | Level 2 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term note receivable | 0 | 0
Long-term amounts due to unconsolidated affiliates | 324 | 283
Total long-term debt | 30,193 | 25,617
Fair Value | Level 3 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term note receivable | 334 | 318
Long-term amounts due to unconsolidated affiliates | 0 | 0
Total long-term debt | 0 | 0
SDG&E |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Unamortized discount (net of premium) and debt issuance costs | 95 | 89
Finance lease obligations | 1,205 | 1,233
SDG&E | Carrying Amount |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total long-term debt | 8,950 | 8,750
SDG&E | Fair Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total long-term debt | 7,760 | 7,856
SDG&E | Fair Value | Level 1 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total long-term debt | 0 | 0
SDG&E | Fair Value | Level 2 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total long-term debt | 7,760 | 7,856
SDG&E | Fair Value | Level 3 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total long-term debt | 0 | 0
SoCalGas |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Unamortized discount (net of premium) and debt issuance costs | 65 | 55
Finance lease obligations | 110 | 107
SoCalGas | Carrying Amount |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total long-term debt | 7,359 | 6,759
SoCalGas | Fair Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total long-term debt | 6,880 | 6,442
SoCalGas | Fair Value | Level 1 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total long-term debt | 0 | 0
SoCalGas | Fair Value | Level 2 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total long-term debt | 6,880 | 6,442
SoCalGas | Fair Value | Level 3 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total long-term debt | $ 0 | $ 0

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