Business Segment Information Narrative (Details) - USD ($) $ in Thousands	1 Months Ended			12 Months Ended
	Jun. 30, 2022	May 31, 2022	May 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Asset Write-Offs, Impairments, And Related Charges				$ (163,464)	$ 263,599	$ 26,379
Reduction in deferred income tax expense						230,000
Deferred Income Taxes and Tax Credits				(47,154)	248,719	(131,114)
System Energy [Member]
Segment Reporting Information [Line Items]
Deferred Income Taxes and Tax Credits				(85,720)	11,191	(455,732)
Regulatory charge related to System Energy settlement	$ 551,000			551,000
Regulatory charge related to System Energy settlement - net of tax	$ 413,000			413,000
Entergy Louisiana [Member]
Segment Reporting Information [Line Items]
Reduction in deferred income tax expense						383,000
Deferred Income Taxes and Tax Credits				(70,379)	175,700	(356,256)
Reduction to income tax expense				283,000
Regulatory charge recorded as a result of reduction in income tax expense		$ 224,000		224,000
Regulatory charge recorded as a result of reduction in income tax expense, net of tax		$ 165,000		165,000
Utility [Member]
Segment Reporting Information [Line Items]
Reduction in deferred income tax expense						396,000
Entergy Wholesale Commodities [Member]
Segment Reporting Information [Line Items]
Restructuring costs incurred, pre-tax				3,000	13,000	71,000
Asset Write-Offs, Impairments, And Related Charges				1,000	264,000	19,000
Restructuring Reserve				0	37,000	159,000	$ 143,000
Deferred Income Taxes and Tax Credits						105,000
Gain on Sale of Investments				166,000
Entergy Wholesale Commodities [Member] | Indian Point Energy Center
Segment Reporting Information [Line Items]
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property			$ 340,000
Reduction to income tax expense			$ 268,000
Entergy Wholesale Commodities [Member] | Palisades [Member]
Segment Reporting Information [Line Items]
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property				166,000
Reduction to income tax expense				130,000
Parent & Other [Member]
Segment Reporting Information [Line Items]
Deferred Income Taxes and Tax Credits						61,000
Employee Retention and Severances Expenses and Other Benefits-Related Costs [Member] | Entergy Wholesale Commodities [Member]
Segment Reporting Information [Line Items]
Restructuring costs incurred, pre-tax				3,000	12,000	71,000
Restructuring Reserve				$ 0	$ 37,000	$ 145,000	$ 129,000