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Callaway Energy Center (Insurance Disclosure) (Details) $ in Millions | 6 Months Ended
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Jun. 30, 2022 USD ($) yr
Nuclear Waste Matters [Line Items] |
Decommissioning Cost | $ 7.0
Frequency of Decommissioning Cost Study | 3 years
Proceeds from Insurance Settlement, Investing Activities | $ 22.0
Number Of Years The Limit Of Liability And The Maximum Potential Annual Payments Are Adjusted | 5 years
Number Of Weeks Of Coverage After The First Twelve Weeks Of An Outage | yr | 1
Number Of Additional Weeks After Initial Indemnity Coverage For Power Outage | yr | 1.365
Public Liability And Nuclear Worker Liability - American Nuclear Insurers |
Nuclear Waste Matters [Line Items] |
Insurance Aggregate Maximum Coverage | $ 450.0
Insurance Maximum Coverage per Incident | 0.0
Public Liability And Nuclear Worker Liability - Pool Participation |
Nuclear Waste Matters [Line Items] |
Insurance Aggregate Maximum Coverage | 13,073.0
Insurance Maximum Coverage per Incident | 138.0
Threshold Amount For Retrospective Insurance Assessment For Covered Loss Under Public Liability And Nuclear Worker Liability Insurance Policy | 450.0
Maximum Annual Payment Per Incident At Licensed Commercial Nuclear Reactor | 21.0
Public Liability |
Nuclear Waste Matters [Line Items] |
Insurance Aggregate Maximum Coverage | 13,523.0
Insurance Maximum Coverage per Incident | 138.0
Property Damage - Nuclear Electric Insurance Ltd |
Nuclear Waste Matters [Line Items] |
Insurance Aggregate Maximum Coverage | 3,200.0
Insurance Maximum Coverage per Incident | 26.0
Accidental Outage - Nuclear Electric Insurance Ltd |
Nuclear Waste Matters [Line Items] |
Insurance Aggregate Maximum Coverage | 490.0
Insurance Maximum Coverage per Incident | 7.0
Amount Of Weekly Indemnity Coverage Commencing Twelve Weeks After Power Outage | 4.5
Amount Of Additional Weekly Indemnity Coverage Commencing After Initial Indemnity Coverage | 3.6
Amount Of Weekly Indemnity Coverage Thereafter Not Exceeding Policy Limit | 490.0
Sub-Limit Of Amount Of Weekly Indemnity Coverage Thereafter Not Exceeding Policy Limit For Non-Nuclear Events | 328.0
Radiation Event |
Nuclear Waste Matters [Line Items] |
Insurance Aggregate Maximum Coverage | 2,700.0
Aggregate Nuclear Power Industry Insurance Policy Limit For Losses From Terrorist Attacks Within Twelve Month Period | 3,200.0
Non-Radiation Event |
Nuclear Waste Matters [Line Items] |
Insurance Aggregate Maximum Coverage | 2,300.0
Aggregate Nuclear Power Industry Insurance Policy Limit For Losses From Terrorist Attacks Within Twelve Month Period | 1,800.0
Property Damage European Mutual Association for Nuclear Insurance |
Nuclear Waste Matters [Line Items] |
Insurance Aggregate Maximum Coverage | $ 490.0

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