Income Taxes (Details)		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%	21.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent		3.50%	3.60%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	[1]	(11.70%)	(14.80%)
Effective Income Tax Rate Reconciliation, Other Regulatory Items, Percent	[2]	(4.80%)	(3.80%)
Effective Income Tax Rate Reconciliation, Net Operating Loss Carryback, Percent		(0.90%)	(1.30%)
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent		0.30%	0.20%
Effective Income Tax Rate Reconciliation, Percent		7.40%	4.90%

[1] Wind PTCs are credited to customers (reduction to revenue) and do not materially impact net income.

[2] Regulatory differences for income tax primarily relate to the credit of excess deferred taxes to customers through the average rate assumption method. Income tax benefits associated with the credit of excess deferred taxes are offset by corresponding revenue reductions.