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SEMPRA - EQUITY AND EARNINGS PER COMMON SHARE - SCHEDULE OF FORWARD SALE AGREEMENTS (Details) - USD ($) $ / shares in Units, $ in Millions | Feb. 26, 2025 | Nov. 18, 2024 | Jun. 30, 2026
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Q4 2024 Forward Sale Agreement |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |
Number of shares sold (in shares) |  | 2,909,274 |
Number of shares that remain to be settled (in shares) |  |  | 2,909,274
Sale of stock, price per share (usd per share) |  | $ 92.1546 |
Expected net proceeds |  | $ 268.0 |
Sales commissions |  | $ 2.4 |
Q1 2025 Forward Sale Agreement |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |
Number of shares sold (in shares) | 2,087,317 |  |
Number of shares that remain to be settled (in shares) |  |  | 2,087,317
Sale of stock, price per share (usd per share) | $ 70.6593 |  |
Expected net proceeds | $ 147.0 |  |
Sales commissions | $ 1.3 |  |

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- Definition Sale of Stock, Consideration Expected To Be Received on Transaction + References No definition available. + Details
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- Definition Sale of Stock, Number of Shares That Remain To Be Issued in Transaction + References No definition available. + Details
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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-15 + Details
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