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SEMPRA - EQUITY AND EARNINGS PER COMMON SHARE - NONCONTROLLING INTEREST NARRATIVE (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2026 | Jun. 30, 2025
Noncontrolling Interest [Line Items] |  |
Contributions from noncontrolling interests | $ 74 | $ 83
SI Partners and ConocoPhillips | Port Arthur LNG I |  |
Noncontrolling Interest [Line Items] |  |
Funding commitment, aggregate amount | 9,000 |
SI Partners | Port Arthur LNG I |  |
Noncontrolling Interest [Line Items] |  |
Funding commitment paid | $ 2,700 |
Port Arthur LNG I | SI Partners and ConocoPhillips |  |
Noncontrolling Interest [Line Items] |  |
Funding commitment (in percent) | 110.00% |
Port Arthur LNG I | SI Partners |  |
Noncontrolling Interest [Line Items] |  |
Guaranteed funding amount (in percent) | 70.00% |
Sempra Infrastructure |  |
Noncontrolling Interest [Line Items] |  |
Distributions to Noncontrolling Interests | $ 135 | 91
Contributions from noncontrolling interests | $ 74 | $ 83

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