Income Taxes (Schedule Of Effective Income Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Entity Information [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
State income tax, net of federal tax benefit	4.00%	4.20%	4.40%
Depreciation flow through and amortization	(6.30%)	(6.80%)	(5.70%)
Effective Income Tax Rate Reconciliation, Funds Used during Construction, Equity	0.40%	1.00%	0.20%
Other - net	0.40%	1.20%	1.30%
Effective tax rate	19.50%	20.60%	21.20%
Indianapolis Power And Light Company
Entity Information [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
State income tax, net of federal tax benefit	4.00%	4.20%	4.40%
Depreciation flow through and amortization	(4.90%)	(5.10%)	(4.70%)
Effective Income Tax Rate Reconciliation, Funds Used during Construction, Equity	0.30%	0.70%	0.20%
Other - net	0.30%	1.00%	0.80%
Effective tax rate	20.70%	21.80%	21.70%