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SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - AFFILIATES REVENUE AND COST OF SALES (Details) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2022 MW | Jun. 30, 2015 MW | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Related Party Transaction [Line Items] |  |  |  |  |
Revenues |  |  | $ 13,185 | $ 16,720 | $ 14,439
Interest income |  |  | 61 | 89 | 75
Interest expense |  |  | 1,049 | 1,309 | 1,054
SDG&E |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Revenues |  |  | 5,341 | 5,597 | 5,838
Interest income |  |  | 5 | 15 | 5
Interest expense |  |  | 525 | 497 | 449
Operating Revenue |  |  | 5,341 | 5,597 | 5,838
SoCalGas |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Revenues |  |  | 6,209 | 8,289 | 6,840
Interest income |  |  | 9 | 9 | 6
Interest expense |  |  | 323 | 285 | 198
Operating Revenue |  |  | $ 6,209 | 8,289 | 6,840
California Utilities | Minimum |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Variable percentage rate |  |  | 13.00% |  |
California Utilities | Maximum |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Variable percentage rate |  |  | 20.00% |  |
Related Party |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Revenues |  |  | $ 40 | 44 | 41
Interest income |  |  | 0 | 0 | 16
Interest expense |  |  | 16 | 15 | 15
Related Party | SDG&E |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Cost of sales |  |  | 146 | 113 | 92
Operating Revenue |  |  | 23 | 21 | 16
Related Party | SoCalGas |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Cost of sales |  |  | (5) | 35 | (9)
Operating Revenue |  |  | $ 169 | $ 124 | $ 100
ESJ JV | SDG&E |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Power purchase agreement term | 20 years | 20 years |  |  |
Generating capacity (in mw) | MW | 108 | 155 |  |  |

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