Leases Lease, Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating Lease, Expense	$ 69,067	$ 67,471
Finance Lease, Right-of-Use Asset, Amortization	12,483	12,180
Finance Lease, Interest Expense	2,845	2,884
Short-term Lease, Cost	2,800	759
Entergy Louisiana [Member]
Operating Lease, Expense	14,368	13,944
Finance Lease, Right-of-Use Asset, Amortization	3,938	4,097
Finance Lease, Interest Expense	607	597
Short-term Lease, Cost	934	719
Entergy Mississippi [Member]
Operating Lease, Expense	7,018	6,584
Finance Lease, Right-of-Use Asset, Amortization	1,766	1,627
Finance Lease, Interest Expense	270	254
Short-term Lease, Cost	703
Entergy New Orleans [Member]
Operating Lease, Expense	1,745	1,443
Finance Lease, Right-of-Use Asset, Amortization	731	712
Finance Lease, Interest Expense	124	120
Short-term Lease, Cost	77
Entergy Texas [Member]
Operating Lease, Expense	5,370	4,870
Finance Lease, Right-of-Use Asset, Amortization	1,493	1,340
Finance Lease, Interest Expense	214	196
Short-term Lease, Cost	261
Entergy Arkansas [Member]
Operating Lease, Expense	15,087	14,344
Finance Lease, Right-of-Use Asset, Amortization	2,860	2,693
Finance Lease, Interest Expense	432	408
Short-term Lease, Cost	$ 826	$ 43