Retirement, Other Postretirement Benefits, And Defined Contribution Plans (Narrative) (Details) $ in Thousands	1 Months Ended	9 Months Ended	12 Months Ended
	May 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Noncurrent		$ 254,704	$ 254,704	$ 648,413
Liability, Defined Benefit Plan, Current		$ 64,854	$ 64,854	$ 59,508
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate		4.75%	4.75%	4.75%	4.75%
Defined Contribution Plan, Cost			$ 72,300	$ 65,100	$ 62,100
Regulatory Asset, Noncurrent		$ 5,255,509	5,255,509	5,669,404
Regulatory Liability, Noncurrent		3,609,463	3,609,463	3,116,926
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		462,797	462,797	0
Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | Entergy New Orleans and Entergy Louisiana natural gas distribution businesses [Member]
Defined Benefit Plan Disclosure [Line Items]
Disposal Group, Liabilities, Defined Benefit Plan, Noncurrent		3,976	3,976
Disposal Group, Assets, Defined Benefit Plan, Noncurrent		14,663	14,663
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		462,797	462,797
Disposal Group, Assets, Regulatory Asset, Noncurrent		35,381	$ 35,381
Savings Plan of Entergy Corporation and Subsidiaries
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay			6.00%
Savings Plan of Entergy Corporation and Subsidiaries VIII and the Savings Plan of Entergy Corporation and Subsidiaries IX
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay			5.00%
Defined Contribution Plan, Employer Discretionary Contribution, Percent			4.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Match			100.00%
Pension & postretirement benefits expense deferral [Member]
Defined Benefit Plan Disclosure [Line Items]
Regulatory Asset, Noncurrent		15,000	$ 15,000	32,700
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		698,602	698,602	673,141	623,824
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			(24,291)	(13,810)	(12,597)
Defined Benefit Plan, Benefit Obligation		754,682	754,682	837,644	865,854
Liability, Defined Benefit Plan, Noncurrent		13,550	13,550	118,797
Liability, Defined Benefit Plan, Current		42,530	42,530	45,706
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		(154,008)	(154,008)	(150,977)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)			(22,880)	(22,558)	(25,550)
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		42,800	42,800
Defined Benefit Plan, Regulatory Asset (Liability), Prior Service Cost (Credit), before Tax		(12,729)	(12,729)	(21,465)
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		(78,520)	(78,520)	(33,617)
Defined Benefit Plan, Regulatory Asset (Liability), before Tax		(91,249)	(91,249)	(55,082)
Other Postretirement Benefits Plan [Member] | Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | Entergy New Orleans and Entergy Louisiana natural gas distribution businesses [Member]
Defined Benefit Plan Disclosure [Line Items]
Disposal Group, Assets, Defined Benefit Plan, Noncurrent		14,700	14,700
Disposal Group, Assets, Regulatory Asset, Noncurrent		$ 1,900	$ 1,900
Other Postretirement Benefits Plan [Member] | Defined Benefit Plan Total Plan Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Percentage		10.00%	10.00%
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		$ 4,432,732	$ 4,432,732	5,460,601
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		240,000	240,000
Pension Plan [Member] | Group annuity contract purchase
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			(328,000)
Pension Plan [Member] | Corporate Segment and Other Operating Segment [Member] | Group annuity contract purchase
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			(320,000)
Pension Plan [Member] | Utility [Member] | Group annuity contract purchase
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			(8,000)
Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		81,200	81,200	77,900
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			12,200	43,800	30,900
Defined Benefit Plan, Benefit Obligation		94,100	94,100	88,600
Liability, Defined Benefit Plan, Noncurrent		71,800	71,800	74,800
Liability, Defined Benefit Plan, Current		22,300	22,300	13,800
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		4,700	4,700	3,900
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			1,500	27,900	12,200
Common Stock Issued, Employee Stock Trust					35,000
Defined Benefit Plan, Regulatory Asset (Liability), before Tax		29,800	29,800	29,700
Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		4,432,732	4,432,732	5,460,601	5,242,098
Defined Benefit Plan, Accumulated Benefit Obligation		4,100,000	4,100,000	5,600,000
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			391,473	253,739	390,458
Defined Benefit Plan, Benefit Obligation		4,520,691	4,520,691	5,915,404	6,166,106
Liability, Defined Benefit Plan, Noncurrent		158,630	158,630	454,803
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			(328,277)	(160,387)	(230,389)
Defined Benefit Plan, Plan Assets, Payment for Settlement			(1,205,195)	(410,110)
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		1,217,402	1,217,402	1,447,978
Pension Plan [Member] | Qualified Plan [Member] | Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | Entergy New Orleans and Entergy Louisiana natural gas distribution businesses [Member]
Defined Benefit Plan Disclosure [Line Items]
Disposal Group, Liabilities, Defined Benefit Plan, Noncurrent		4,000	4,000
Disposal Group, Assets, Regulatory Asset, Noncurrent		13,900	$ 13,900
Pension Plan [Member] | Qualified Plan [Member] | Group annuity contract purchase
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement		328,000
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement	$ 1,200,000
Group annuity contract population	3,400
Pension Plan [Member] | Qualified Plan [Member] | Corporate Segment and Other Operating Segment [Member] | Group annuity contract purchase
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement		320,000
Pension Plan [Member] | Qualified Plan [Member] | Utility [Member] | Group annuity contract purchase
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement		$ 8,000
Pension Plan [Member] | Defined Benefit Plan Total Plan Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Investment within Plan Asset Category, Percentage		10.00%	10.00%
Entergy Arkansas [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost			$ 6,822	5,866	5,124
Regulatory Asset, Noncurrent		$ 1,700,110	1,700,110	1,885,361
Regulatory Liability, Noncurrent		831,165	831,165	759,181
Entergy Arkansas [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		284,095	284,095	274,814	255,117
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			(5,538)	(1,879)	(5,665)
Defined Benefit Plan, Benefit Obligation		138,212	138,212	155,987	164,018
Liability, Defined Benefit Plan, Noncurrent		0	0	118,827
Liability, Defined Benefit Plan, Current		0	0	0
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		0	0	0
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)			2,097	2,096	1,885
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		529	529
Defined Benefit Plan, Regulatory Asset (Liability), Prior Service Cost (Credit), before Tax		2,886	2,886	4,983
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		(38,054)	(38,054)	(17,980)
Defined Benefit Plan, Regulatory Asset (Liability), before Tax		(35,168)	(35,168)	(12,997)
Entergy Arkansas [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		35,544	35,544
Entergy Arkansas [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		1,468	1,468	1,935
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			269	637	282
Defined Benefit Plan, Benefit Obligation		1,721	1,721	2,313
Liability, Defined Benefit Plan, Noncurrent		1,197	1,197	2,037
Liability, Defined Benefit Plan, Current		524	524	276
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		0	0	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement				379
Defined Benefit Plan, Regulatory Asset (Liability), before Tax		119	119	857
Entergy Arkansas [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		1,043,188	1,043,188	991,894	961,178
Defined Benefit Plan, Accumulated Benefit Obligation		980,559	980,559	1,048,901
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			19,631	49,450	74,774
Defined Benefit Plan, Benefit Obligation		1,061,063	1,061,063	1,117,585	1,168,098
Liability, Defined Benefit Plan, Noncurrent		47,396	47,396	125,691
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			0	(26,137)	(36,409)
Defined Benefit Plan, Plan Assets, Payment for Settlement				(68,700)
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		412,777	412,777	485,113
Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Noncurrent		160,577	160,577	271,928
Defined Contribution Plan, Cost			8,784	7,757	7,138
Regulatory Asset, Noncurrent		1,637,967	1,637,967	1,648,852
Regulatory Liability, Noncurrent		1,692,547	1,692,547	1,407,689
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		173,669	173,669	0
Entergy Louisiana [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0	0	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			(701)	1,449	6,029
Defined Benefit Plan, Benefit Obligation		156,831	156,831	170,139	183,126
Liability, Defined Benefit Plan, Noncurrent		142,454	142,454	155,090
Liability, Defined Benefit Plan, Current		14,377	14,377	15,049
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		(84,131)	(84,131)	(88,354)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)			(4,544)	(3,804)	(4,630)
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		14,377	14,377
Defined Benefit Plan, Regulatory Asset (Liability), Prior Service Cost (Credit), before Tax		0	0	0
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		0	0	0
Defined Benefit Plan, Regulatory Asset (Liability), before Tax		0	0	0
Entergy Louisiana [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		41,253	41,253
Entergy Louisiana [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		1,197	1,197	2,494
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			256	99	102
Defined Benefit Plan, Benefit Obligation		1,405	1,405	2,574
Liability, Defined Benefit Plan, Noncurrent		1,215	1,215	2,266
Liability, Defined Benefit Plan, Current		190	190	308
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		(21)	(21)	(67)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			55		1
Defined Benefit Plan, Regulatory Asset (Liability), before Tax		493	493	1,604
Entergy Louisiana [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		1,111,601	1,111,601	1,058,711	1,035,574
Defined Benefit Plan, Accumulated Benefit Obligation		1,024,433	1,024,433	1,085,318
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			10,668	69,539	100,633
Defined Benefit Plan, Benefit Obligation		1,123,024	1,123,024	1,173,283	1,256,422
Liability, Defined Benefit Plan, Noncurrent		21,433	21,433	114,572
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			0	(40,437)	(58,550)
Defined Benefit Plan, Plan Assets, Payment for Settlement				(103,100)
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		256,316	256,316	319,116
Entergy Mississippi [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost			4,048	3,534	3,194
Regulatory Asset, Noncurrent		525,847	525,847	579,076
Regulatory Liability, Noncurrent		59,544	59,544	33,696
Entergy Mississippi [Member] | Other postretirement benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Regulatory Liability, Noncurrent		7,400	7,400	0
Entergy Mississippi [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		89,144	89,144	85,662	79,496
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			(3,699)	(2,538)	(4,370)
Defined Benefit Plan, Benefit Obligation		38,143	38,143	41,344	44,365
Liability, Defined Benefit Plan, Noncurrent		0	0	44,318
Liability, Defined Benefit Plan, Current		0	0	0
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		0	0	0
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)			(955)	(955)	(1,772)
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		178	178
Defined Benefit Plan, Regulatory Asset (Liability), Prior Service Cost (Credit), before Tax		(1,727)	(1,727)	(2,682)
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		(8,791)	(8,791)	(4,815)
Defined Benefit Plan, Regulatory Asset (Liability), before Tax		(10,518)	(10,518)	(7,497)
Entergy Mississippi [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		8,064	8,064
Entergy Mississippi [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		3,322	3,322	3,187
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			326	808	321
Defined Benefit Plan, Benefit Obligation		3,566	3,566	3,369
Liability, Defined Benefit Plan, Noncurrent		3,147	3,147	2,895
Liability, Defined Benefit Plan, Current		419	419	474
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		0	0	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement				453	2
Defined Benefit Plan, Regulatory Asset (Liability), before Tax		1,292	1,292	1,303
Entergy Mississippi [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		294,458	294,458	280,260	265,736
Defined Benefit Plan, Accumulated Benefit Obligation		257,759	257,759	273,338
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			3,330	19,715	29,234
Defined Benefit Plan, Benefit Obligation		283,071	283,071	295,942	320,994
Liability, Defined Benefit Plan, Noncurrent		8,279	8,279	15,682
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			0	(12,242)	(15,786)
Defined Benefit Plan, Plan Assets, Payment for Settlement				(31,400)
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		86,790	86,790	102,208
Entergy New Orleans [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost			1,584	1,383	1,223
Regulatory Asset, Noncurrent		133,261	133,261	182,367
Regulatory Liability, Noncurrent		260,312	260,312	90,434
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		284,738	284,738	0
Entergy New Orleans [Member] | Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | Entergy New Orleans natural gas distribution business [Member]
Defined Benefit Plan Disclosure [Line Items]
Disposal Group, Liabilities, Defined Benefit Plan, Noncurrent		1,197	1,197
Disposal Group, Assets, Defined Benefit Plan, Noncurrent		19,499	19,499
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		284,738	284,738
Disposal Group, Assets, Regulatory Asset, Noncurrent		23,682	23,682
Entergy New Orleans [Member] | Other postretirement benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Regulatory Liability, Noncurrent		1,000	1,000
Entergy New Orleans [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		105,600	105,600	100,536	91,140
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			(5,540)	(4,318)	(6,720)
Defined Benefit Plan, Benefit Obligation		19,701	19,701	21,685	23,971
Liability, Defined Benefit Plan, Noncurrent		0	0	78,851
Liability, Defined Benefit Plan, Current		0	0	0
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		0	0	0
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)			(916)	(916)	(916)
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		205	205
Defined Benefit Plan, Regulatory Asset (Liability), Prior Service Cost (Credit), before Tax		(1,066)	(1,066)	(1,982)
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		(8,134)	(8,134)	(5,843)
Defined Benefit Plan, Regulatory Asset (Liability), before Tax		(9,200)	(9,200)	(7,825)
Entergy New Orleans [Member] | Other Postretirement Benefits Plan [Member] | Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | Entergy New Orleans natural gas distribution business [Member]
Defined Benefit Plan Disclosure [Line Items]
Disposal Group, Assets, Defined Benefit Plan, Noncurrent		19,500	19,500
Disposal Group, Assets, Regulatory Asset, Noncurrent		1,900	1,900
Entergy New Orleans [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		5,016	5,016
Entergy New Orleans [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		939	939	814
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			122	132	114
Defined Benefit Plan, Benefit Obligation		1,143	1,143	1,034
Liability, Defined Benefit Plan, Noncurrent		1,039	1,039	928
Liability, Defined Benefit Plan, Current		104	104	106
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		0	0	0
Defined Benefit Plan, Regulatory Asset (Liability), before Tax		9	9	5
Entergy New Orleans [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		125,805	125,805	117,923	119,710
Defined Benefit Plan, Accumulated Benefit Obligation		118,620	118,620	125,878
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			1,103	3,678	9,779
Defined Benefit Plan, Benefit Obligation		127,133	127,133	133,950	140,436
Liability, Defined Benefit Plan, Noncurrent		4,627	4,627	16,027
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			0	(2,080)	(6,676)
Defined Benefit Plan, Plan Assets, Payment for Settlement				(5,300)
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		34,039	34,039	44,911
Entergy New Orleans [Member] | Pension Plan [Member] | Qualified Plan [Member] | Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | Entergy New Orleans natural gas distribution business [Member]
Defined Benefit Plan Disclosure [Line Items]
Disposal Group, Liabilities, Defined Benefit Plan, Noncurrent		1,200	1,200
Disposal Group, Assets, Regulatory Asset, Noncurrent		6,700	6,700
Entergy Texas [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost			3,907	3,380	2,938
Regulatory Asset, Noncurrent		549,708	549,708	596,606
Regulatory Liability, Noncurrent		18,705	18,705	43,013
Entergy Texas [Member] | Pension & postretirement benefits expense deferral [Member]
Defined Benefit Plan Disclosure [Line Items]
Regulatory Asset, Noncurrent		15,000	15,000	32,700
Entergy Texas [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		167,744	167,744	161,318	148,799
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			(10,855)	(8,827)	(11,078)
Defined Benefit Plan, Benefit Obligation		45,609	45,609	51,617	53,482
Liability, Defined Benefit Plan, Noncurrent		0	0	109,701
Liability, Defined Benefit Plan, Current		0	0	0
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		0	0	0
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)			(4,371)	(4,371)	(4,371)
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		156	156
Defined Benefit Plan, Regulatory Asset (Liability), Prior Service Cost (Credit), before Tax		(7,419)	(7,419)	(11,790)
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		9,268	9,268	14,542
Defined Benefit Plan, Regulatory Asset (Liability), before Tax		1,849	1,849	2,752
Entergy Texas [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		7,725	7,725
Entergy Texas [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		2,710	2,710	3,701
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			248	253	1,320
Defined Benefit Plan, Benefit Obligation		2,734	2,734	3,762
Liability, Defined Benefit Plan, Noncurrent		2,348	2,348	3,314
Liability, Defined Benefit Plan, Current		386	386	448
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		0	0	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement					1,000
Defined Benefit Plan, Regulatory Asset (Liability), before Tax		(3,429)	(3,429)	(2,526)
Entergy Texas [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		228,053	228,053	222,496	226,417
Defined Benefit Plan, Accumulated Benefit Obligation		212,935	212,935	225,379
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			436	15,718	29,835
Defined Benefit Plan, Benefit Obligation		229,942	229,942	239,984	265,565
Liability, Defined Benefit Plan, Noncurrent		7,953	7,953	17,488
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			0	(11,230)	(22,411)
Defined Benefit Plan, Plan Assets, Payment for Settlement				(29,400)
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		55,902	55,902	63,665
System Energy [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Noncurrent		8,353	8,353	19,491
Regulatory Asset, Noncurrent		426,494	426,494	446,360
Regulatory Liability, Noncurrent		747,190	747,190	782,912
System Energy [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		46,997	46,997	45,402	42,434
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			(913)	(348)	(1,005)
Defined Benefit Plan, Benefit Obligation		30,553	30,553	33,778	35,274
Liability, Defined Benefit Plan, Noncurrent		0	0	11,624
Liability, Defined Benefit Plan, Current		0	0	0
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax		0	0	0
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)			(293)	(293)	(319)
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		34	34
Defined Benefit Plan, Regulatory Asset (Liability), Prior Service Cost (Credit), before Tax		(203)	(203)	(496)
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		(3,364)	(3,364)	112
Defined Benefit Plan, Regulatory Asset (Liability), before Tax		(3,567)	(3,567)	(384)
System Energy [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		15,668	15,668
System Energy [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		269,899	269,899	255,443	240,392
Defined Benefit Plan, Accumulated Benefit Obligation		252,397	252,397	267,432
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)			5,818	12,627	21,702
Defined Benefit Plan, Benefit Obligation		275,117	275,117	286,558	288,302
Liability, Defined Benefit Plan, Noncurrent		8,353	8,353	31,115
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			(615)	(6,375)	$ (9,905)
Defined Benefit Plan, Plan Assets, Payment for Settlement			(2,100)	(16,700)
Defined Benefit Plan, Regulatory Asset (Liability), Gain (Loss), before Tax		$ 96,932	$ 96,932	$ 111,996
Minimum [Member] | Savings Plan of Entergy Corporation and Subsidiaries
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match			70.00%
Maximum [Member] | Savings Plan of Entergy Corporation and Subsidiaries
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match			100.00%