SEMPRA - EQUITY AND EARNINGS PER COMMON SHARE - NONCONTROLLING INTEREST NARRATIVE (Details) - USD ($) $ in Millions |
9 Months Ended | |
|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Noncontrolling Interest [Line Items] | ||
| Distributions to Noncontrolling Interests | $ 20 | $ 0 |
| Contributions from noncontrolling interests | 97 | 137 |
| 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 | $ 206 | 131 |
| Contributions from noncontrolling interests | $ 97 | $ 137 |