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SAN ONOFRE NUCLEAR GENERATING STATION - NARRATIVE (Details) - SDG&E - USD ($) $ in Millions | Mar. 31, 2025 | Jan. 31, 2025
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Jointly Owned Nuclear Power Plant |  |
Jointly Owned Utility Plant Interests [Line Items] |  |
Jointly owned utility plant, proportionate ownership share (as a percent) | 20.00% |
Percent of dismantlement work expense (as a percent) | 20.00% |
Decommissioning costs | $ 461 |
SONGS 2 and 3 Decommissioning |  |
Jointly Owned Utility Plant Interests [Line Items] |  |
Nuclear decommissioning trust authorized withdrawal amount |  | $ 66

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- Definition Amount of a decommissioning liability associated with a legal obligation that a firm incurs when it constructs or operates an asset that must eventually be withdrawn from active service. This may include operating assets such as nuclear power plants or shipping vessels. + References No definition available. + Details
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- Definition The proportionate share of interest (percent) in a jointly owned utility plant. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 980 -SubTopic 360 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 10.C) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479070/980-360-S99-1 + Details
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