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COMMITMENTS AND CONTINGENCIES - CONTRACTUAL COMMITMENTS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Storage and transportation |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2024 | $ 229 |  |
2025 | 205 |  |
2026 | 196 |  |
2027 | 177 |  |
2028 | 152 |  |
Thereafter | 1,421 |  |
Total minimum payments | 2,380 |  |
Natural Gas |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2024 | 54 |  |
2025 | 41 |  |
2026 | 0 |  |
2027 | 0 |  |
2028 | 0 |  |
Thereafter | 0 |  |
Total minimum payments | 95 |  |
Natural Gas | SoCalGas |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2024 | 28 |  |
2025 | 35 |  |
2026 | 0 |  |
2027 | 0 |  |
2028 | 0 |  |
Thereafter | 0 |  |
Total minimum payments | 63 |  |
Natural Gas Contracts |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2024 | 283 |  |
2025 | 246 |  |
2026 | 196 |  |
2027 | 177 |  |
2028 | 152 |  |
Thereafter | 1,421 |  |
Total minimum payments | 2,475 |  |
Payments | 4,030 | $ 2,536 | $ 1,691
Natural Gas Contracts | SoCalGas |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2024 | 151 |  |
2025 | 136 |  |
2026 | 97 |  |
2027 | 81 |  |
2028 | 70 |  |
Thereafter | 176 |  |
Total minimum payments | 711 |  |
Payments | 3,857 | 2,492 | 1,590
Transportation | SoCalGas |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2024 | 123 |  |
2025 | 101 |  |
2026 | 97 |  |
2027 | 81 |  |
2028 | 70 |  |
Thereafter | 176 |  |
Total minimum payments | 648 |  |
Liquefied Natural Gas Contracts | Sempra Infrastructure |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2024 | 370 |  |
2025 | 670 |  |
2026 | 699 |  |
2027 | 704 |  |
2028 | 693 |  |
Thereafter | 429 |  |
Total minimum payments | 3,565 |  |
Payments | 30 | 108 | 27
Purchased-Power Agreements |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2024 | 148 |  |
2025 | 105 |  |
2026 | 121 |  |
2027 | 103 |  |
2028 | 101 |  |
Thereafter | 830 |  |
Total minimum payments | 1,408 |  |
Payments | 325 | 297 | 267
Purchased-Power Agreements | SDG&E |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2024 | 148 |  |
2025 | 105 |  |
2026 | 121 |  |
2027 | 103 |  |
2028 | 101 |  |
Thereafter | 830 |  |
Total minimum payments | 1,408 |  |
Variable payments, due year one | 79 |  |
Variable payments, due year two | 79 |  |
Variable payments, due year three | 80 |  |
Variable payments, due year four | 80 |  |
Variable payments, due year five | 80 |  |
Variable payments, due thereafter | 519 |  |
Payments | 325 | $ 297 | $ 267
Infrastructure Construction And Improvements |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2024 | 17 |  |
2025 | 6 |  |
2026 | 3 |  |
2027 | 1 |  |
2028 | 1 |  |
Thereafter | 16 |  |
Total minimum payments | 44 |  |
Infrastructure Construction And Improvements | SDG&E |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2024 | 13 |  |
2025 | 4 |  |
2026 | 1 |  |
2027 | 1 |  |
2028 | 1 |  |
Thereafter | 16 |  |
Construction projects, payable | 36 |  |
Infrastructure Improvements For Natural Gas And Electric Transmission And Distribution | SDG&E |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
Construction projects, payable | 15 |  |
Nuclear Plant Maintenance | SDG&E |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
Construction projects, payable | 21 |  |
Information Technology Software Project | SoCalGas |  |  |
Unrecorded Unconditional Purchase Obligation, Rolling Maturity [Abstract] |  |  |
2024 | 4 |  |
2025 | 2 |  |
2026 | 2 |  |
Construction projects, payable | $ 8 |  |

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