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DEBT AND CREDIT FACILITIES - FIRST MORTGAGE BONDS (Details) - USD ($) $ in Millions | 1 Months Ended |  |
--- | --- | --- | ---
Aug. 31, 2024 | Mar. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Debt Instrument [Line Items] |  |  |  |
Gross long-term debt |  |  | $ 16,590 | $ 12,207
SDG&E |  |  |  |
Debt Instrument [Line Items] |  |  |  |
First mortgage bonds available for future issuance |  |  | 8,800 |
Gross long-term debt |  |  | 8,950 | 8,350
SDG&E | First Mortgage Bonds, 5.55% April 5, 2054 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Gross long-term debt |  |  | $ 600 | 0
Stated percentage rate |  |  | 5.55% |
SDG&E | First Mortgage Bonds, 5.55%, Due April 15, 2054 | Secured Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Proceeds from issuance of debt |  | $ 587 |  |
Underwriting discounts and debt issuance costs |  | 13 |  |
SoCalGas |  |  |  |
Debt Instrument [Line Items] |  |  |  |
First mortgage bonds available for future issuance |  |  | $ 1,600 |
Gross long-term debt |  |  | 6,650 | 6,050
SoCalGas | First Mortgage Bonds, 5.60% April 1, 2054 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Gross long-term debt |  |  | $ 500 | 0
Stated percentage rate |  |  | 5.60% |
SoCalGas | Five Point Six Percent First Mortgage Bonds, Due April 1, 2054 | Secured Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Proceeds from issuance of debt |  | 491 |  |
Underwriting discounts and debt issuance costs |  | $ 9 |  |
SoCalGas | First Mortgage Bonds, 5.05% September 1, 2034 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Gross long-term debt |  |  | $ 600 | $ 0
Stated percentage rate |  |  | 5.05% |
SoCalGas | First Mortgage Bonds, 5.05% September 1, 2034 | Secured Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Proceeds from issuance of debt | $ 592 |  |  |
Underwriting discounts and debt issuance costs | $ 8 |  |  |

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