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SEMPRA - EQUITY AND EARNINGS PER COMMON SHARE - NCI NARRATIVE (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Mar. 31, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Noncontrolling Interest [Line Items] |  |  |  |  |
Contributions |  | $ 312 | $ 498 | $ 786 | $ 595
Sale |  |  |  |  | $ 255
Port Arthur LNG |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |
Contributions | $ 237 |  |  |  |
Indirect Subsidiary Of SI Partners | Port Arthur LNG |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |
Cash consideration | 265 |  |  |  |
Sale | 18 |  |  |  |
Sale of noncontrolling interest, transaction costs | 3 |  |  |  |
Sale of noncontrolling interest, tax impacts | 7 |  |  |  |
Funding commitment, aggregate amount | $ 9,000 |  |  |  |
Funding commitment paid |  | $ 2,400 |  | $ 2,400 |
Port Arthur LNG | Indirect Subsidiary Of SI Partners |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |
Ownership interest (as a percent) | 30.00% |  |  |  |
Funding commitment (in percent) | 110.00% |  |  |  |
Guaranteed funding amount (in percent) | 70.00% |  |  |  |

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