Variable Interest Entities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Variable Interest Entities (Textual) [Abstract]
Assets	$ 58,595,191	$ 59,454,242
System Energy [Member]
Variable Interest Entities (Textual) [Abstract]
Assets	4,214,146	4,372,624
System Energy [Member] | Grand Gulf [Member]
Variable Interest Entities (Textual) [Abstract]
Payments on lease, including interest	17,200	17,200	$ 17,200
Entergy Arkansas [Member]
Variable Interest Entities (Textual) [Abstract]
Assets	13,006,576	12,565,119
Entergy Arkansas [Member] | AR Searcy Partnership, LLC
Variable Interest Entities (Textual) [Abstract]
Assets	138,300
Ownership Interest in Partnership, Carrying Value	109,000
Entergy Mississippi [Member]
Variable Interest Entities (Textual) [Abstract]
Assets	6,078,764	5,557,389
Entergy Mississippi [Member] | MS Sunflower Partnership, LLC
Variable Interest Entities (Textual) [Abstract]
Assets	154,500
Ownership Interest in Partnership, Carrying Value	117,200
Entergy Louisiana [Member]
Variable Interest Entities (Textual) [Abstract]
Assets	28,144,555	$ 27,675,838
Entergy Louisiana [Member] | Entergy Finance Company, LLC
Variable Interest Entities (Textual) [Abstract]
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value	$ 3,200,000