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v3.22.2.2

Property, Plant and Equipment (Narrative) (Details) | 9 Months Ended
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Sep. 30, 2022 MW
Edgewater Generating Station | WPL [Member] |
Property, Plant and Equipment [Line Items] |
Nameplate capacity (in MW) | 414
Columbia Energy Center | WPL [Member] |
Property, Plant and Equipment [Line Items] |
Nameplate capacity (in MW) | 595
Lansing Generating Station | IPL [Member] |
Property, Plant and Equipment [Line Items] |
Nameplate capacity (in MW) | 275

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