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SEMPRA - EQUITY AND EARNINGS PER COMMON SHARE - COMMON STOCK NARRATIVE (Details) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2026 USD ($) agreement shares | Jun. 30, 2025 USD ($) shares | Nov. 30, 2024 USD ($)
Common stock |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Shares withheld for tax purposes (in shares) | shares | 235,027 | 678,705 |
Shares withheld for tax purposes | $ 21 | $ 58 |
At The Market Program Offering |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Aggregate sales price |  |  | $ 3,000
Underwriting commission, percent |  |  | 1.00%
Aggregate sales price remaining | $ 2,600 |  |
Number of forward sale agreements | agreement | 2 |  |

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