Income Taxes (Schedule Of Income Tax Expenses From Continuing Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current Federal Tax Expense (Benefit)	$ 60,639	$ 32,387	$ (5,003)
Current State and Local Tax Expense (Benefit)	23,014	(3,091)	(8,995)
Current Income Tax Expense (Benefit)	83,653	29,296	(13,998)
Deferred Income Tax Expense Benefit And Non current Income Tax Expense Benefit	(768,941)	(67,520)	205,891
Income Tax Credits and Adjustments	(5,247)	(754)	(519)
Income Tax Expense (Benefit)	(690,535)	(38,978)	191,374
Entergy Arkansas [Member]
Current Federal Tax Expense (Benefit)	33,100	8,015	(20,285)
Current State and Local Tax Expense (Benefit)	(4,201)	(1,066)	529
Current Income Tax Expense (Benefit)	28,899	6,949	(19,756)
Deferred Income Tax Expense Benefit And Non current Income Tax Expense Benefit	(126,878)	74,802	96,180
Income Tax Credits and Adjustments	(1,231)	(855)	(1,229)
Income Tax Expense (Benefit)	(99,210)	80,896	75,195
Entergy Louisiana [Member]
Current Federal Tax Expense (Benefit)	(142,253)	(79,079)	(24,053)
Current State and Local Tax Expense (Benefit)	(6,397)	(1,773)	2,459
Current Income Tax Expense (Benefit)	(148,650)	(80,852)	(21,594)
Deferred Income Tax Expense Benefit And Non current Income Tax Expense Benefit	(52,451)	(77,223)	146,786
Income Tax Credits and Adjustments	(4,680)	(4,778)	(4,783)
Income Tax Expense (Benefit)	(205,781)	(162,853)	120,409
Entergy Mississippi [Member]
Current Federal Tax Expense (Benefit)	20,328	9,242	(5,868)
Current State and Local Tax Expense (Benefit)	4,142	(6,486)	(11,506)
Current Income Tax Expense (Benefit)	24,470	2,756	(17,374)
Deferred Income Tax Expense Benefit And Non current Income Tax Expense Benefit	30,690	48,443	60,861
Income Tax Credits and Adjustments	(796)	3,665	1,836
Income Tax Expense (Benefit)	54,364	54,864	45,323
Entergy New Orleans [Member]
Current Federal Tax Expense (Benefit)	(99,343)	1,074	(6,724)
Current State and Local Tax Expense (Benefit)	(5,854)	6,221	(413)
Current Income Tax Expense (Benefit)	(105,197)	7,295	(7,137)
Deferred Income Tax Expense Benefit And Non current Income Tax Expense Benefit	(84,744)	16,814	12,870
Income Tax Credits and Adjustments	(32)	168	203
Income Tax Expense (Benefit)	(189,973)	24,277	5,936
Entergy Texas [Member]
Current Federal Tax Expense (Benefit)	2,851	37,471	(189)
Current State and Local Tax Expense (Benefit)	3,719	2,260	1,261
Current Income Tax Expense (Benefit)	6,570	39,731	1,072
Deferred Income Tax Expense Benefit And Non current Income Tax Expense Benefit	57,066	11,520	25,087
Income Tax Credits and Adjustments	(764)	(630)	(633)
Income Tax Expense (Benefit)	62,872	50,621	25,526
System Energy [Member]
Current Federal Tax Expense (Benefit)	337	(11,720)	29,416
Current State and Local Tax Expense (Benefit)	(1,570)	581	(10,258)
Current Income Tax Expense (Benefit)	(1,233)	(11,139)	19,158
Deferred Income Tax Expense Benefit And Non current Income Tax Expense Benefit	31,005	(83,369)	(25,229)
Income Tax Credits and Adjustments	(2,260)	(1,680)	(4,094)
Income Tax Expense (Benefit)	$ 32,032	$ (92,828)	$ (1,977)