Income Taxes (Details)		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Federal statutory rate		21.00%	21.00%	21.00%	21.00%
State tax (net of federal tax effect)		5.10%	5.10%	4.90%	4.90%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	[1]	(60.30%)	(64.00%)	(36.80%)	(44.10%)
Plant regulatory differences (b)	[2]	(7.00%)	(6.30%)	(6.00%)	(5.80%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent		(1.30%)	(1.40%)	(0.80%)	(1.50%)
Other, net		1.40%	1.60%	0.70%	0.50%
Effective income tax rate		(41.10%)	(44.00%)	(17.00%)	(25.00%)

[1] Wind PTCs net of estimated transfer discounts are generally credited to customers (reduction to revenue) and do not materially impact net income

[2] Plant regulatory differences primarily relate to the credit of excess deferred taxes to customers. Income tax benefits associated with the credit are offset by corresponding revenue reductions.