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GENERAL INFORMATION AND OTHER FINANCIAL DATA - TRANSACTIONS WITH AFFILIATES (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates - current | $ 0 | $ 13 | [1]
Total due to unconsolidated affiliates - noncurrent | 0 | (352) | [1]
SI Partners | Disposal Group Held-for-sale |  |  |
Related Party Transaction [Line Items] |  |  |
Due from unconsolidated affiliates | 3 |  |
Due to unconsolidated affiliates | 417 |  |
Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates - current | 0 | 13 |
Total due to unconsolidated affiliates - noncurrent | 0 | (352) |
Total due to unconsolidated affiliates – current | (17) | 0 | [1]
Other Affiliates |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates - current | 0 | 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 | (17) | 0 |
SDG&E |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates - current | 13 | 0 | [2]
SDG&E | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates - current | 13 | 0 |
Total due to unconsolidated affiliates – current | (65) | (59) | [2]
SDG&E | Other 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 | 13 | 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 | (57) | (42) |
Income taxes due from (to) Sempra | 46 | 38 |
SoCalGas |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates - current | 2 | 16 | [3]
SoCalGas | Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Total due from unconsolidated affiliates - current | 2 | 16 |
Total due to unconsolidated affiliates – current | (62) | (38) | [3]
SoCalGas | Other 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 | (13) | 0 |
SoCalGas | Due to/from Sempra Energy |  |  |
Related Party Transaction [Line Items] |  |  |
Total due to unconsolidated affiliates – current | (49) | (38) |
Income taxes due from (to) Sempra | 20 | (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 | $ 0 | (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 | $ 0 | (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 | $ 0 | (41) |
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 | $ 0 | $ (209) |
Stated rate of debt (as a percent) | 5.74% |  |
[1] | Derived from audited financial statements.
[2] | Derived from audited financial statements.
[3] | Derived from audited financial statements.

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