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GENERAL INFORMATION AND OTHER FINANCIAL DATA - INVENTORIES (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Inventory [Line Items] |  |  |
Natural gas | $ 162 | $ 163 |
LNG | 0 | 27 |
Materials and supplies | 403 | 369 |
Total | 565 | 559 | [1]
SI Partners | Disposal Group Held-for-sale |  |  |
Inventory [Line Items] |  |  |
Inventories classified as assets held for sale | 103 |  |
SI Partners | Disposal Group Held-for-sale | Natural gas |  |  |
Inventory [Line Items] |  |  |
Inventories classified as assets held for sale | 10 |  |
SI Partners | Disposal Group Held-for-sale | LNG |  |  |
Inventory [Line Items] |  |  |
Inventories classified as assets held for sale | 11 |  |
SI Partners | Disposal Group Held-for-sale | Materials and supplies |  |  |
Inventory [Line Items] |  |  |
Inventories classified as assets held for sale | 82 |  |
SDG&E |  |  |
Inventory [Line Items] |  |  |
Natural gas | 2 | 1 |
LNG | 0 | 0 |
Materials and supplies | 261 | 201 |
Total | 263 | 202 | [2]
SoCalGas |  |  |
Inventory [Line Items] |  |  |
Natural gas | 160 | 148 |
LNG | 0 | 0 |
Materials and supplies | 142 | 139 |
Total | $ 302 | $ 287 | [3]
[1] | Derived from audited financial statements.
[2] | Derived from audited financial statements.
[3] | Derived from audited financial statements.

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