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GENERAL INFORMATION AND OTHER FINANCIAL DATA - TRANSACTIONS WITH AFFILIATES (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | $ 15 | $ 13 | [1]
Total due to unconsolidated affiliates – noncurrent | (355) | (352) | [1]
Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 15 | 13 |
Total due to unconsolidated affiliates – noncurrent | (355) | (352) |
Various affiliates |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 4 | 5 |
Tax Sharing Arrangement | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 11 | 8 |
SDG&E | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – current | (67) | (59) | [2]
SDG&E | Various affiliates |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – current | (14) | (3) |
SDG&E | Due to/from Sempra Energy |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – current | (44) | (42) |
Income taxes due (to) from Sempra | 21 | 38 |
SDG&E | Due to/from SoCalGas |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – current | (9) | (14) |
SoCalGas |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 34 | 16 | [1]
SoCalGas | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 34 | 16 |
Total due to unconsolidated affiliates – current | (25) | (38) | [1]
SoCalGas | Various affiliates |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 2 | 2 |
SoCalGas | Due to/from Sempra Energy |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – current | (25) | (38) |
Income taxes due (to) from Sempra | (78) | (6) |
SoCalGas | Due to/from SDG&E |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates – current | 32 | 14 |
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 | $ (48) | (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 | $ (44) | 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 | $ (212) | $ (209) |
Stated rate of debt (as a percent) | 5.74% |  |
[1] | Derived from audited financial statements.
[2] | Derived from audited financial statements.

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