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GENERAL INFORMATION AND OTHER FINANCIAL DATA - AFFILIATES REVENUE AND COST OF SALES (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Related Party Transaction [Line Items] |  |
Revenues | $ 3,802 | $ 3,640
Interest expense | 433 | 305
Related Party |  |
Related Party Transaction [Line Items] |  |
Revenues | 9 | 10
Interest expense | 4 | 4
SDG&E |  |
Related Party Transaction [Line Items] |  |
Revenues | 1,420 | 1,379
Interest expense | 135 | 128
Operating revenues | 1,420 | 1,379
SDG&E | Related Party |  |
Related Party Transaction [Line Items] |  |
Operating revenues | 6 | 6
Cost of sales | 38 | 40
SoCalGas |  |
Related Party Transaction [Line Items] |  |
Revenues | 2,020 | 1,805
Interest expense | 90 | 77
Operating revenues | 2,020 | 1,805
SoCalGas | Related Party |  |
Related Party Transaction [Line Items] |  |
Operating revenues | 41 | 44
Cost of sales | $ (1) | $ (3)

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