Income Taxes (Schedule Of Effective Income Tax Rates) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Effective Tax Rate [Line Items]
Overall income tax rate	(61.00%)	0.00%	(21.00%)	(1.00%)
IPL [Member]
Effective Tax Rate [Line Items]
Overall income tax rate	220.00%	(17.00%)	(113.00%)	(18.00%)
WPL [Member]
Effective Tax Rate [Line Items]
Overall income tax rate	4.00%	16.00%	5.00%	14.00%