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Callaway Energy Center (Insurance Disclosure) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2022 USD ($)
Nuclear Waste Matters [Line Items] |
Number Of Years The Limit Of Liability And The Maximum Potential Annual Payments Are Adjusted | five years
Number of weeks of coverage after the first twelve weeks of an outage | 1
Number Of Additional Weeks After Initial Indemnity Coverage For Power Outage | 1.365
Public Liability And Nuclear Worker Liability - American Nuclear Insurers |
Nuclear Waste Matters [Line Items] |
Maximum Coverages | $ 450.0
Maximum Assessments for Single Incidents | 0.0
Public Liability And Nuclear Worker Liability - Pool Participation |
Nuclear Waste Matters [Line Items] |
Maximum Coverages | 13,210.0
Maximum Assessments for Single Incidents | 138.0
Threshold Amount For which a Retrospective Assessment For a Covered loss is necessary | 450.0
Maximum Annual Payment Per Incident At Licensed Commercial Nuclear Reactor | 21.0
Public Liability And Nuclear Worker Liability |
Nuclear Waste Matters [Line Items] |
Maximum Coverages | 13,660.0
Maximum Assessments for Single Incidents | 138.0
Property Damage - Nuclear Electric Insurance Ltd |
Nuclear Waste Matters [Line Items] |
Maximum Coverages | 3,200.0
Maximum Assessments for Single Incidents | 26.0
Replacement Power - Nuclear Electric Insurance Ltd |
Nuclear Waste Matters [Line Items] |
Maximum Coverages | 490.0
Maximum Assessments for Single Incidents | 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 for Non-Nuclear Events | 328.0
Radiation Event |
Nuclear Waste Matters [Line Items] |
Maximum Coverages | 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] |
Maximum Coverages | 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] |
Maximum Coverages | $ 490.0

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