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v3.24.3

Debt (Credit Facilities) (Details) $ in Millions | Sep. 30, 2024 USD ($)
--- | ---
Debt [Line Items] |
Amount outstanding | $ 330
Weighted average interest rates | 5.00%
Available credit facility capacity | $ 670
IPL [Member] |
Debt [Line Items] |
Amount outstanding | $ 0
Weighted average interest rates | 0.00%
Available credit facility capacity | $ 250
WPL [Member] |
Debt [Line Items] |
Amount outstanding | $ 0
Weighted average interest rates | 0.00%
Available credit facility capacity | $ 300

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