Rate And Regulatory Matters (Details Of Other Regulatory Assets Included In Entergy Corporation And Subsidiaries) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Jul. 31, 2022	Jan. 31, 2022	Dec. 31, 2021	Dec. 31, 2018
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	$ 6,036,397			$ 6,613,256
Entergy Arkansas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	1,810,281			1,689,678
Deferred Fuel Cost - Net Asset	208,600			177,600
Deferred Fuel Cost - Net Asset	208,600			177,600
Entergy Louisiana [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	2,056,179			2,776,666
Deferred Fuel Cost - Net Asset	327,300			213,500
Deferred Fuel Cost - Net Asset	327,300			213,500
Entergy Mississippi [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	519,460			462,432
Deferred Fuel Cost - Net Asset	143,200	$ 291,700	$ 100,000	121,900
Deferred Fuel Cost - Net Asset	143,200	$ 291,700	$ 100,000	121,900
Entergy New Orleans [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	202,112			248,617
Deferred Fuel Cost - Net Asset	14,200
Deferred Fuel Cost - Net Asset	14,200
Entergy Texas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	578,682			421,333
Deferred Fuel Cost - Net Asset	258,100			48,300
Deferred Fuel Cost - Net Asset	258,100			48,300
System Energy [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	415,121			395,546
Asset Retirement Obligation [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	1,103,200			935,500
Asset Retirement Obligation [Member] | Entergy Arkansas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	562,700			489,200
Asset Retirement Obligation [Member] | Entergy Louisiana [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	346,300			286,600
Asset Retirement Obligation [Member] | Entergy Mississippi [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	6,300			8,400
Asset Retirement Obligation [Member] | System Energy [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	186,100			144,400
Pension And Post Retirement Costs [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	1,968,500			2,327,700
Pension And Post Retirement Costs [Member] | Entergy Arkansas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	597,600			640,000
Pension And Post Retirement Costs [Member] | Entergy Louisiana [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	481,700			592,700
Pension And Post Retirement Costs [Member] | Entergy Mississippi [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	148,800			175,400
Pension And Post Retirement Costs [Member] | Entergy New Orleans [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	51,400			44,900
Pension And Post Retirement Costs [Member] | Entergy Texas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	100,500			96,000
Pension And Post Retirement Costs [Member] | System Energy [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	133,900			160,300
Provision For Storm Damages, Including Hurricane Costs [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	841,300			993,600
Provision For Storm Damages, Including Hurricane Costs [Member] | Entergy Arkansas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	35,900			39,300
Provision For Storm Damages, Including Hurricane Costs [Member] | Entergy Louisiana [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	472,800			773,600
Provision For Storm Damages, Including Hurricane Costs [Member] | Entergy New Orleans [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	17,200			31,200
Provision For Storm Damages, Including Hurricane Costs [Member] | Entergy Texas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	315,400			143,100
Removal Costs [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	1,058,900			1,488,800
Removal Costs [Member] | Entergy Arkansas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	267,100			224,300
Regulatory Assets	267,100			224,300
Removal Costs [Member] | Entergy Louisiana [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	418,800			848,200
Regulatory Assets	418,800			848,200
Removal Costs [Member] | Entergy Mississippi [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	159,400			136,800
Regulatory Assets	159,400			136,800
Removal Costs [Member] | Entergy New Orleans [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	56,300			91,700
Regulatory Assets	56,300			91,700
Removal Costs [Member] | Entergy Texas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	62,900			98,100
Regulatory Assets	62,900			98,100
Removal Costs [Member] | System Energy [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	94,400			89,700
Regulatory Assets	94,400			89,700
Attorney General Litigation Costs [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	15,700			20,500
Attorney General Litigation Costs [Member] | Entergy Mississippi [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	15,700			20,500
Neches and Sabine Costs [Member] | Entergy Texas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	14,000			16,400
Regulatory Clause Revenues, under-recovered [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	160,000			69,200
Regulatory Clause Revenues, under-recovered [Member] | Entergy Arkansas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	26,400			1,000
Regulatory Clause Revenues, under-recovered [Member] | Entergy Mississippi [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	101,300			48,100
Unamortized Loss on Reacquired Debt [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	68,400			74,700
Unamortized Loss on Reacquired Debt [Member] | Entergy Arkansas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	21,400			23,100
Unamortized Loss on Reacquired Debt [Member] | Entergy Louisiana [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	25,100			26,900
Unamortized Loss on Reacquired Debt [Member] | Entergy Mississippi [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	10,900			12,200
Unamortized Loss on Reacquired Debt [Member] | Entergy New Orleans [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	1,200			1,600
Unamortized Loss on Reacquired Debt [Member] | Entergy Texas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	9,100			9,800
Unamortized Loss on Reacquired Debt [Member] | System Energy [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	700			1,100
ANO Fukushima and Flood Barrier costs [Member] | Entergy Arkansas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	5,600			7,300
Opportunity Sales [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	131,800			131,800
Opportunity Sales [Member] | Entergy Arkansas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	131,800			131,800	$ 116,000
Retired electric meters [Member] | Entergy Arkansas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	39,800			43,400
Retired electric meters [Member] | Entergy Texas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	21,400			23,700
Other Regulatory Assets (Liabilities) [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	157,400			112,200
Other Regulatory Assets (Liabilities) [Member] | Entergy Arkansas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	15,900			17,900
Other Regulatory Assets (Liabilities) [Member] | Entergy Louisiana [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	81,800			45,700
Other Regulatory Assets (Liabilities) [Member] | Entergy Mississippi [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	24,800			13,200
Other Regulatory Assets (Liabilities) [Member] | Entergy New Orleans [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	35,100			37,700
Other Regulatory Assets (Liabilities) [Member] | Entergy Texas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	14,400			7,900
Retired electric and gas meters [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	166,800			179,400
Retired electric and gas meters [Member] | Entergy Louisiana [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	88,000			91,700
Retired electric and gas meters [Member] | Entergy New Orleans [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	17,600			19,600
Deferred COVID-19 costs
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	120,900			133,100
Deferred COVID-19 costs | Entergy Arkansas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	39,000			32,600
Deferred COVID-19 costs | Entergy Louisiana [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	47,800			56,300
Deferred COVID-19 costs | Entergy Mississippi [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	9,800			15,000
Deferred COVID-19 costs | Entergy New Orleans [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	13,900			17,400
Deferred COVID-19 costs | Entergy Texas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	10,400			11,700
New Orleans Power Station deferral | Entergy New Orleans [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	2,900
Pension & post retirement benefits expense deferral
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	30,600			14,600
Pension & post retirement benefits expense deferral | Entergy Texas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	30,600			14,600
Qualified Pension Settlement Cost Deferral
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	194,700			113,200
Qualified Pension Settlement Cost Deferral | Entergy Arkansas [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	67,100			39,800
Qualified Pension Settlement Cost Deferral | Entergy Louisiana [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	93,900			55,000
Qualified Pension Settlement Cost Deferral | Entergy Mississippi [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	24,300			13,800
Qualified Pension Settlement Cost Deferral | Entergy New Orleans [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	9,400			4,500
Formula rate plan historical year rate adjustment [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	18,200			19,000
Formula rate plan historical year rate adjustment [Member] | Entergy Mississippi [Member]
Regulatory Assets [Line Items]
Regulatory Assets, Noncurrent	$ 18,200			$ 19,000