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Commitment, Contingencies And Guarantees: Reclamation Liability (Details) - Electric Utilities $ in Millions | Dec. 31, 2022 USD ($)
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Loss Contingencies [Line Items] |
Accrual for Environmental Loss Contingencies - Pueblo Airport Generation Site | $ 4.1
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] | Other Liabilities, Noncurrent

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