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GENERAL INFORMATION AND OTHER FINANCIAL DATA - TRANSACTIONS WITH AFFILIATES (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | $ 3 | $ 13 | [1]
Total due to unconsolidated affiliates – noncurrent | (359) | (352) | [1]
Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 3 | 13 |
Total due to unconsolidated affiliates – noncurrent | (359) | (352) |
Total due to unconsolidated affiliates – current | (8) | 0 | [1]
Various affiliates |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 3 | 5 |
Tax Sharing Arrangement | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 0 | 8 |
Total due to unconsolidated affiliates – current | (8) | 0 |
SDG&E |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 9 | 0 | [1]
SDG&E | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 9 | 0 |
Total due to unconsolidated affiliates – current | (49) | (59) | [1]
SDG&E | Various affiliates |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – current | (8) | (3) |
SDG&E | Subsidiary of common parent |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 9 | 0 |
Total due to unconsolidated affiliates – current | 0 | (14) |
SDG&E | Due to/from Sempra Energy |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – current | (41) | (42) |
Income taxes due from (to) Sempra | 33 | 38 |
SoCalGas |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 2 | 16 | [1]
SoCalGas | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 2 | 16 |
Total due to unconsolidated affiliates – current | (43) | (38) | [1]
SoCalGas | Various affiliates |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 2 | 2 |
SoCalGas | Subsidiary of common parent |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 0 | 14 |
Total due to unconsolidated affiliates – current | (9) | 0 |
SoCalGas | Due to/from Sempra Energy |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – current | (34) | (38) |
Income taxes due from (to) Sempra | 11 | (6) |
5.5% Note due January 14, 2026 | TAG Pipeline | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – noncurrent | $ 0 | (8) |
Stated rate of debt (as a percent) | 5.50% |  |
5.5% Note due July 14, 2026 | TAG Pipeline | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – noncurrent | $ 0 | (12) |
Stated rate of debt (as a percent) | 5.50% |  |
5.5% Note due January 19, 2027 | TAG Pipeline | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – noncurrent | $ 0 | (15) |
Stated rate of debt (as a percent) | 5.50% |  |
5.5% Note due July 21, 2027 | TAG Pipeline | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – noncurrent | $ (9) | (19) |
Stated rate of debt (as a percent) | 5.50% |  |
5.5% Note due January 19, 2028 | TAG Pipeline | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – noncurrent | $ (49) | (48) |
Stated rate of debt (as a percent) | 5.50% |  |
5.5% Note due July 18, 2028 | TAG Pipeline | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – noncurrent | $ (42) | (41) |
Stated rate of debt (as a percent) | 5.50% |  |
5.5% Note due January 22, 2029 | TAG Pipeline | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – noncurrent | $ (45) | 0 |
Stated rate of debt (as a percent) | 5.50% |  |
5.74% Note due December 17, 2029 | TAG JV Norte | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – noncurrent | $ (214) | $ (209) |
Stated rate of debt (as a percent) | 5.74% |  |
[1] | Derived from audited financial statements.

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