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DEBT AND CREDIT FACILITIES - LONG-TERM DEBT (Details) - USD ($) $ in Millions | 1 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
May 31, 2025 | Apr. 30, 2025 | Mar. 31, 2025 | Jan. 31, 2025 | Jun. 30, 2025 | Jul. 31, 2025 | Dec. 31, 2024
Debt Instrument [Line Items] |  |  |  |  |  |  |
Total facility |  |  |  |  | $ 9,900 |  |
SDG&E |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Total facility |  |  |  |  | 1,500 |  |
SoCalGas |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Total facility |  |  |  |  | 1,200 |  |
First Mortgage Bonds, 5.40% April 15, 2035 | Secured Debt | SDG&E |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt amount |  |  | $ 850 |  |  |  |
Stated rate of debt (as a percent) |  |  | 5.40% |  |  |  |
Proceeds from debt issuance |  |  | $ 840 |  |  |  |
Unamortized debt issuance costs |  |  | $ 10 |  |  |  |
First Mortgage Bonds, 5.45% June 15, 2035 | Secured Debt | SoCalGas |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt amount | $ 600 |  |  |  |  |  |
Stated rate of debt (as a percent) | 5.45% |  |  |  |  |  |
Proceeds from debt issuance | $ 592 |  |  |  |  |  |
Unamortized debt issuance costs | 8 |  |  |  |  |  |
First Mortgage Bonds, 6.00% June 15, 2055 | Secured Debt | SoCalGas |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt amount | $ 500 |  |  |  |  |  |
Stated rate of debt (as a percent) | 6.00% |  |  |  |  |  |
Proceeds from debt issuance | $ 488 |  |  |  |  |  |
Unamortized debt issuance costs | $ 12 |  |  |  |  |  |
Loan Agreement To Finance Natural Gas Liquefaction Export Facility | ECA LNG Phase 1 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Total facility |  |  |  |  | 1,300 |  |
Debt outstanding |  |  |  |  | $ 1,200 |  | $ 1,100
Weighted average interest rate (as a percent) |  |  |  |  | 7.28% |  | 7.29%
Loan Agreement To Finance Natural Gas Liquefaction Export Facility | ECA LNG Phase 1 | Subsequent Event |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Total facility |  |  |  |  |  | $ 1,500 |
Effective interest rate |  |  |  |  |  | 2.29% |
Debt instrument, basis spread on variable rate, minimum |  |  |  |  |  | 0.10% |
Loan Agreement To Finance Natural Gas Liquefaction Export Facility | IEnova |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum exposure under guarantor obligations |  |  |  |  | $ 1,056 |  |
Loan Agreement To Finance Natural Gas Liquefaction Export Facility | TotalEnergies SE |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum exposure under guarantor obligations |  |  |  |  | 262 |  |
Loan Agreement To Finance The Cost Of Development And Construction Of The PA LNG Phase 1 Project | Port Arthur LNG |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt outstanding |  |  |  |  | $ 1,600 |  | $ 1,100
Weighted average interest rate (as a percent) |  |  |  |  | 5.44% |  | 5.33%
Loan Agreement To Finance The Cost Of Development And Construction Of The PA LNG Phase 1 Project | Domestic Line of Credit | Port Arthur LNG |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Total facility |  |  |  |  | $ 6,800 |  |
Term of debt instrument (in years) |  |  |  |  | 7 years |  |
Senior Secured Notes Issued Jan 2025 | Senior Notes | Port Arthur LNG |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt amount |  |  |  | $ 750 |  |  |
Stated rate of debt (as a percent) |  |  |  | 6.27% |  |  |
Proceeds from debt issuance |  |  |  | $ 742 |  |  |
Unamortized debt issuance costs |  |  |  | $ 8 |  |  |
Senior Secured Notes Issued Apr 2025 | Senior Notes | Port Arthur LNG |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt amount |  | $ 250 |  |  |  |  |
Stated rate of debt (as a percent) |  | 6.32% |  |  |  |  |
Proceeds from debt issuance |  | $ 248 |  |  |  |  |
Unamortized debt issuance costs |  | $ 2 |  |  |  |  |

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