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Commitments and Guarantees Schdule of Long term contracts for purchase of electric power (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2024 USD ($) MW | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Priest Rapids and Wanapum [Member] |  |  |
Long-term Contract for Purchase of Electric Power [Line Items] |  |  |
Revenue Bonds issued by the Public Utility Districts | $ 1,673 |  |
PGE Share of Output | 8.60% |  |
PGE Share of Capacity | MW | 163 |  |
commitment costs | $ 75 | $ 77 | $ 45
Wells [Member] |  |  |
Long-term Contract for Purchase of Electric Power [Line Items] |  |  |
Revenue Bonds issued by the Public Utility Districts | $ 273 |  |
PGE Share of Output | 9.00% |  |
PGE Share of Capacity | MW | 29 |  |
commitment costs | $ 11 | $ 11 | $ 12

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 10.D) -SubTopic 10 -Topic 980 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480114/980-10-S99-1 + Details
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