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COMMITMENTS AND CONTINGENCIES - CONTRACTUAL COMMITMENTS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Storage and transportation |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2025 | $ 229 |  |
2026 | 225 |  |
2027 | 203 |  |
2028 | 155 |  |
2029 | 140 |  |
Thereafter | 1,283 |  |
Total minimum payments | 2,235 |  |
Natural Gas |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2025 | 65 |  |
2026 | 175 |  |
2027 | 271 |  |
2028 | 242 |  |
2029 | 152 |  |
Thereafter | 212 |  |
Total minimum payments | 1,117 |  |
Natural Gas | SoCalGas |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2025 | 61 |  |
2026 | 108 |  |
2027 | 124 |  |
2028 | 83 |  |
2029 | 0 |  |
Thereafter | 0 |  |
Total minimum payments | 376 |  |
Natural Gas Contracts |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2025 | 294 |  |
2026 | 400 |  |
2027 | 474 |  |
2028 | 397 |  |
2029 | 292 |  |
Thereafter | 1,495 |  |
Total minimum payments | 3,352 |  |
Payments | 1,185 | $ 4,030 | $ 2,536
Natural Gas Contracts | SoCalGas |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2025 | 191 |  |
2026 | 233 |  |
2027 | 228 |  |
2028 | 154 |  |
2029 | 59 |  |
Thereafter | 118 |  |
Total minimum payments | 983 |  |
Payments | 1,088 | 3,857 | 2,492
Transportation | SoCalGas |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2025 | 130 |  |
2026 | 125 |  |
2027 | 104 |  |
2028 | 71 |  |
2029 | 59 |  |
Thereafter | 118 |  |
Total minimum payments | 607 |  |
Liquefied Natural Gas Contracts | Sempra Infrastructure |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2025 | 355 |  |
2026 | 640 |  |
2027 | 657 |  |
2028 | 646 |  |
2029 | 402 |  |
Total minimum payments | 2,700 |  |
Payments | 23 | 30 | 108
Purchased-Power Agreements |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
Payments | 326 | 325 | 297
Purchased-Power Agreements | SDG&E |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2025 | 97 |  |
2026 | 116 |  |
2027 | 114 |  |
2028 | 114 |  |
2029 | 114 |  |
Thereafter | 746 |  |
Total minimum payments | 1,301 |  |
2025 | 79 |  |
2026 | 79 |  |
2027 | 80 |  |
2028 | 80 |  |
2029 | 80 |  |
Thereafter | 440 |  |
Payments | 326 | $ 325 | $ 297
Infrastructure Construction And Improvements | SDG&E |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2025 | 115 |  |
2026 | 1 |  |
2027 | 1 |  |
2028 | 1 |  |
2029 | 2 |  |
Thereafter | 13 |  |
Construction projects, payable | 133 |  |
Infrastructure Improvements For Natural Gas And Electric Transmission And Distribution | SDG&E |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
Construction projects, payable | 14 |  |
Nuclear Plant Maintenance | SDG&E |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
Construction projects, payable | 19 |  |
Construction Supply Agreements | SDG&E |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
Construction projects, payable | $ 100 |  |

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