Income Taxes (Schedule Of Income Tax Expenses From Continuing Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Federal	$ (5,003)	$ 5,807	$ (14,416)
State	(8,995)	57,939	6,535
Total	(13,998)	63,746	(7,881)
Deferred and non-current -- net	205,891	(190,635)	(155,956)
Investment tax credit adjustments - net	(519)		(5,988)
Deferred Other Tax Expense (Benefit)		(5,383)
Income Tax Expense (Benefit)	191,374	(121,506)	(169,825)
Entergy Arkansas [Member]
Federal	(20,285)	(44,627)	(14,549)
State	529	(2,563)	(714)
Total	(19,756)	(47,190)	(15,263)
Deferred and non-current -- net	96,180	96,195	(30,278)
Investment tax credit adjustments - net	(1,229)	(1,228)	(1,228)
Income Tax Expense (Benefit)	75,195	47,777	(46,769)
Entergy Louisiana [Member]
Federal	(24,053)	62,728	(20,173)
State	2,459	4,457	(735)
Total	(21,594)	67,185	(20,908)
Deferred and non-current -- net	146,786	(444,647)	147,453
Investment tax credit adjustments - net	(4,783)	(4,862)	(4,922)
Income Tax Expense (Benefit)	120,409	(382,324)	121,623
Entergy Mississippi [Member]
Federal	(5,868)	(14,580)	(8,939)
State	(11,506)	(1,316)	5,823
Total	(17,374)	(15,896)	(3,116)
Deferred and non-current -- net	60,861	43,640	34,579
Investment tax credit adjustments - net		(554)	(597)
Deferred Other Tax Expense (Benefit)	(1,836)
Income Tax Expense (Benefit)	45,323	27,190	30,866
Entergy New Orleans [Member]
Federal	(6,724)	293	(5,822)
State	(413)	(303)	1,856
Total	(7,137)	(10)	(3,966)
Deferred and non-current -- net	12,870	(18,153)	4,248
Investment tax credit adjustments - net			(96)
Deferred Other Tax Expense (Benefit)	(203)	(13,956)
Income Tax Expense (Benefit)	5,936	(4,207)	186
Entergy Texas [Member]
Federal	(189)	(5,603)	16,035
State	1,261	2,658	663
Total	1,072	(2,945)	16,698
Deferred and non-current -- net	25,087	6,619	(69,963)
Investment tax credit adjustments - net	(633)	(632)	(631)
Income Tax Expense (Benefit)	25,526	3,042	(53,896)
System Energy [Member]
Federal	29,416	372,206	16,256
State	(10,258)	55,551	(2,831)
Total	19,158	427,757	13,425
Deferred and non-current -- net	(25,229)	(405,928)	422
Investment tax credit adjustments - net		(1,286)
Deferred Other Tax Expense (Benefit)	4,094		(1,502)
Income Tax Expense (Benefit)	$ (1,977)	$ 20,543	$ 15,349