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Rate And Regulatory Matters (Schedule of Regulatory Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2018
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	$ 5,005,976	$ 5,255,509
Regulatory Asset, Noncurrent and Noncurrent Assets Held For Sale [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent		5,290,900
Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	1,743,848	1,700,110
Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	1,540,709	1,637,967
Entergy Louisiana [Member] | Regulatory Asset, Noncurrent and Noncurrent Assets Held For Sale [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent		1,646,900
Entergy Mississippi [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	455,714	525,847
Entergy New Orleans [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	109,690	133,261
Entergy New Orleans [Member] | Regulatory Asset, Noncurrent and Noncurrent Assets Held For Sale [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent		157,000
Entergy Texas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	510,806	549,708
System Energy [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	601,185	426,494
Asset Retirement Obligation Costs [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	1,437,900	1,358,700
Asset Retirement Obligation Costs [Member] | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	750,500	693,000
Asset Retirement Obligation Costs [Member] | Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	438,000	421,500
Asset Retirement Obligation Costs [Member] | Entergy Mississippi [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	12,200	9,400
Asset Retirement Obligation Costs [Member] | System Energy [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	222,400	224,800
Storm Costs [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	481,400	547,300
Storm Costs [Member] | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	29,300	29,800
Storm Costs [Member] | Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	188,100	226,600
Storm Costs [Member] | Entergy New Orleans [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	200	4,000
Storm Costs [Member] | Entergy Texas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	263,800	286,500
Removal Costs [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	1,178,900	1,107,600
Removal Costs [Member] | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	369,600	337,900
Removal Costs [Member] | Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	348,500	323,200
Removal Costs [Member] | Entergy Mississippi [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	198,600	184,800
Removal Costs [Member] | Entergy New Orleans [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	56,800	62,500
Removal Costs [Member] | Entergy Texas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	105,000	102,300
Removal Costs [Member] | System Energy [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	100,400	96,900
Neches and Sabine Costs [Member] | Entergy Texas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	6,700	9,200
Regulatory Clause Revenues, under-Recovered [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	140,500	195,100
Regulatory Clause Revenues, under-Recovered [Member] | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	14,600	13,600
Regulatory Clause Revenues, under-Recovered [Member] | Entergy Mississippi [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	105,300	162,500
Loss on Reacquired Debt [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	53,600	57,900
Loss on Reacquired Debt [Member] | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	17,400	18,600
Loss on Reacquired Debt [Member] | Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	20,300	21,700
Loss on Reacquired Debt [Member] | Entergy Mississippi [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	8,200	9,100
Loss on Reacquired Debt [Member] | Entergy New Orleans [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	300	500
Loss on Reacquired Debt [Member] | Entergy Texas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	7,000	7,600
Loss on Reacquired Debt [Member] | System Energy [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	400	400
Opportunity Sales [Member] | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent			$ 131,800	$ 116,000
Retired electric meters [Member] | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	29,200	32,800
Retired electric meters [Member] | Entergy Texas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	5,800	10,900
Other Regulatory Assets (Liabilities) [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	61,900	99,700
Other Regulatory Assets (Liabilities) [Member] | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	10,200	14,700
Other Regulatory Assets (Liabilities) [Member] | Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	38,100	48,500
Other Regulatory Assets (Liabilities) [Member] | Entergy Mississippi [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	13,900	18,800
Other Regulatory Assets (Liabilities) [Member] | Entergy New Orleans [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	11,000	20,700
Other Regulatory Assets (Liabilities) [Member] | Entergy Texas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	24,900	15,600
Retired electric and gas meters [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	117,900	135,700
Retired electric and gas meters [Member] | Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	72,900	78,500
Retired electric and gas meters [Member] | Entergy New Orleans [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	10,000	13,500
Deferred COVID-19 costs [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	40,300	104,000
Deferred COVID-19 costs [Member] | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	31,200	35,100
Deferred COVID-19 costs [Member] | Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	0	47,800
Deferred COVID-19 costs [Member] | Entergy New Orleans [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	5,800	10,200
Pension & postretirement benefits expense deferral [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	900	15,000
Pension & postretirement benefits expense deferral [Member] | Entergy Texas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	863	15,000
Qualified Pension Settlement Cost Deferral [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	200,200	227,100
Qualified Pension Settlement Cost Deferral [Member] | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	68,100	75,800
Qualified Pension Settlement Cost Deferral [Member] | Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	98,700	111,400
Qualified Pension Settlement Cost Deferral [Member] | Entergy Mississippi [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	26,000	29,100
Qualified Pension Settlement Cost Deferral [Member] | Entergy New Orleans [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	7,400	10,800
Formula rate plan historical year rate adjustment [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	28,300	15,500
Formula rate plan historical year rate adjustment [Member] | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	28,300	15,500
Advanced Metering System Surcharge [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	53,700	39,700
Advanced Metering System Surcharge [Member] | Entergy Texas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	53,700	39,700
Gas cross-boring costs [Member] | Entergy New Orleans [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	0	11,900
Pension and Other Postretirement Plans Costs [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	1,067,200	1,207,600
Pension and Other Postretirement Plans Costs [Member] | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	333,400	391,200
Pension and Other Postretirement Plans Costs [Member] | Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	215,300	271,500
Pension and Other Postretirement Plans Costs [Member] | Entergy Mississippi [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	70,300	82,200
Pension and Other Postretirement Plans Costs [Member] | Entergy New Orleans [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	18,200	22,900
Pension and Other Postretirement Plans Costs [Member] | Entergy Texas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	43,000	57,100
Pension and Other Postretirement Plans Costs [Member] | System Energy [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	87,200	96,500
Production tax credits
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	47,900	0
Production tax credits | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	37,100	0
Production tax credits | Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	77,000	0
Production tax credits | System Energy [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	185,700	0
Non-service Pension and Othre Postretirement Plan Costs
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	73,000	180,000
Non-service Pension and Othre Postretirement Plan Costs | Entergy Arkansas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	24,900	42,100
Non-service Pension and Othre Postretirement Plan Costs | Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	21,400	96,200
Non-service Pension and Othre Postretirement Plan Costs | Entergy Mississippi [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	21,200	29,900
Non-service Pension and Othre Postretirement Plan Costs | Entergy Texas [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	0	5,800
Non-service Pension and Othre Postretirement Plan Costs | System Energy [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	5,100	7,900
Retired distribution assets - resiliency plan
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	22,400	0
Retired distribution assets - resiliency plan | Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Regulatory Asset, Noncurrent	$ 22,400	$ 0

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- Definition

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+ References

No definition available.

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Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 980
-SubTopic 340
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478742/980-340-50-1

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