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COMMITMENTS, CONTINGENCIES AND GUARANTEES - NARRATIVE (Details) $ in Millions |  | 3 Months Ended | 4 Months Ended | 12 Months Ended | 48 Months Ended |
--- | --- | --- | --- | --- | --- | ---
May 05, 2025 plaintiff | Mar. 31, 2025 USD ($) | Mar. 31, 2024 USD ($) | Feb. 11, 2016 well | Dec. 31, 2022 USD ($) plaintiff | Dec. 31, 2021 lawsuit claimant | Jan. 31, 2024 lawsuit
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Liability for legal proceedings |  | $ 40 |  |  |  |  |
Equity earnings |  | 325 | $ 348 |  |  |  |
Sempra Infrastructure |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of lawsuits pending | lawsuit |  |  |  |  |  |  | 3
Number of claimants | claimant |  |  |  |  |  | 3 |
Aliso Canyon Natural Gas Storage Facility Gas Leak |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of lawsuits | plaintiff |  |  |  |  | 36,000 |  |
Individual Plaintiff Litigation | Aliso Canyon Natural Gas Storage Facility Gas Leak |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Percentage of plaintiffs agreeing to participate and submit releases (in percent) |  |  |  |  | 99.00% |  |
Non-Settling Individual Plaintiffs | Aliso Canyon Natural Gas Storage Facility Gas Leak | Subsequent Event |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of lawsuits | plaintiff | 505 |  |  |  |  |  |
SoCalGas |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Liability for legal proceedings |  | $ 26 |  |  |  |  |
Wells with gas leak | well |  |  |  | 1 |  |  |
SoCalGas | Aliso Canyon Natural Gas Storage Facility Gas Leak |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of lawsuits | plaintiff |  |  |  |  | 36,000 |  |
SoCalGas | Individual Plaintiff Litigation | Aliso Canyon Natural Gas Storage Facility Gas Leak |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Percentage of plaintiffs agreeing to participate and submit releases (in percent) |  |  |  |  | 99.00% |  |
Payment of liquidating companies' costs |  |  |  |  | $ 1,790 |  |
SDG&E |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of lawsuits pending | lawsuit |  |  |  |  |  | 2 |

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