Rate And Regulatory Matters (Narrative) (Details)	1 Months Ended													3 Months Ended	5 Months Ended	6 Months Ended		9 Months Ended	10 Months Ended	11 Months Ended	12 Months Ended				20 Months Ended
	Jul. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	May 31, 2022 USD ($) shares	Apr. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Feb. 28, 2022 USD ($)	Jan. 31, 2022 USD ($)	Oct. 31, 2021 USD ($)	Aug. 31, 2021 USD ($)	May 31, 2021 USD ($)	Apr. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 1988	Jun. 30, 2022 USD ($)	Aug. 31, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jul. 31, 2021 USD ($)	Dec. 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Jan. 01, 2022 USD ($)	Sep. 30, 2021 USD ($)	Apr. 30, 2020 USD ($)
Impairment of Long-Lived Assets Held-for-use																$ (163,321,000)	$ 345,339,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress		$ 1,827,581,000												$ 1,827,581,000		1,827,581,000								$ 1,511,966,000	$ 1,511,966,000
Proceeds from the issuance of long-term debt																3,851,061,000	5,008,330,000
Regulatory Asset [Abstract]
Long-term Transition Bond, Noncurrent		335,995,000												335,995,000		335,995,000								83,639,000	83,639,000
Deferred Fuel Cost		983,935,000												983,935,000		983,935,000								324,394,000	324,394,000
Replacement Reserve Escrow		331,000,000												331,000,000		331,000,000								49,000,000	49,000,000
Reduction of income tax expense			$ 283,000,000
Long-term Transition Bond, Noncurrent		$ 335,995,000												$ 335,995,000		$ 335,995,000								83,639,000	83,639,000
4.00% Series mortgage bonds due July 2022
Debt instrument, interest rate, stated percentage		4.00%	4.00%											4.00%		4.00%
Regulatory Asset [Abstract]
Repayments of First Mortgage Bond			$ 650,000,000
Entergy Louisiana [Member]
Public Utilities, Property, Plant and Equipment, Construction Work in Progress		$ 785,737,000												$ 785,737,000		$ 785,737,000								847,924,000	847,924,000
Proceeds from the issuance of long-term debt																1,777,192,000	2,097,214,000
Total Restoration Costs For Repair and Replacement of Electrical System including carrying costs				$ 2,640,000,000
Storm Reserve Escrow Account		290,065,000				$ 290,000,000					$ 290,000,000			290,065,000		290,065,000								0	0
Regulatory Asset [Abstract]
Aggregate principal amount of system restoration bonds authorization requested						3,186,000,000
Earned return on common equity			8.33%
Deferred Fuel Cost		412,695,000												412,695,000		412,695,000								45,374,000	45,374,000
Reclassification from utility plant to other regulatory assets		1,942,000,000												1,942,000,000		1,942,000,000
Replacement Reserve Escrow		290,100,000												290,100,000		$ 290,100,000
Fuel Costs														135,000,000
Rate Increase Included in Formula Rate Plan			$ 65,300,000
Formula rate plan revenue increase			152,900,000
LCDA issuance of bonds under Act 293 financing			$ 3,194,000,000
LURC's percentage of annual dividends			1.00%													1.00%
ELL's percentage of annual dividends			99.00%													99.00%
Proceeds from Contributed Capital			$ 1,000,000,000													$ 1,000,000,000	0
Proceeds from capital contribution used to fund Hurricane Ida escrow			1,000,000,000
Funds withdrawn from Hurricane Ida escrow and applied to restoration costs			1,000,000,000
Restricted storm escrow funds			290,000,000
Reduction of income tax expense			290,000,000
Regulatory charge recorded as a result of reduction in income tax expense			224,000,000
Regulatory charge recorded as a result of reduction in income tax expense, net of tax			165,000,000
LURC's beneficial interest in the storm trust			31,600,000
Entergy Louisiana [Member] | Unsecured Term Loan due June 2023
Regulatory Asset [Abstract]
Repayments of Unsecured Debt			$ 1,200,000,000
Entergy Louisiana [Member] | Mortgage Bonds Zero Point Six Two Percent Series Due November 2023
Debt instrument, interest rate, stated percentage			0.62%
Regulatory Asset [Abstract]
Repayments of First Mortgage Bond			$ 435,000,000
Entergy Louisiana [Member] | Deferred COVID 19 Costs
Regulatory Asset [Abstract]
Regulatory Assets		47,800,000												47,800,000		47,800,000
Entergy Louisiana [Member] | Hurricane Ida
Total Restoration Costs For Repair and Replacement of Electrical System				2,540,000,000
Non-capital storm costs				586,000,000
Deferred Storm and Property Reserve Deficiency, Noncurrent				1,960,000,000		1,000,000,000											1,000,000,000		$ 1,000,000,000					1,000,000,000	1,000,000,000
Total Restoration Costs For Repair and Replacement of Electrical System including carrying costs				2,600,000,000
Regulatory Asset [Abstract]
Aggregate principal amount of system restoration bonds authorization requested																								1,000,000,000	1,000,000,000
Entergy Louisiana [Member] | Hurricanes Laura, Delta, Zeta, and Winter Storm Uri
Total Restoration Costs For Repair and Replacement of Electrical System											2,060,000,000.00
Non-capital storm costs											380,000,000
Deferred Storm and Property Reserve Deficiency, Noncurrent						51,000,000					1,680,000,000
Total Restoration Costs For Repair and Replacement of Electrical System including carrying costs				$ 32,000,000		2,100,000,000					$ 2,110,000,000
Entergy Louisiana [Member] | Winter Storm Uri
Regulatory Asset [Abstract]
Fuel Costs															$ 166,000,000
Entergy Louisiana [Member] | Subsequent Event [Member] | Hurricanes Laura, Delta, Zeta, and Winter Storm Uri
Regulatory Asset [Abstract]
Carrying costs associated with storm restoration costs																		$ 3,000,000
Entergy Louisiana [Member] | Subsequent Event [Member] | Hurricane Ida
Regulatory Asset [Abstract]
Carrying costs associated with storm restoration costs																		57,000,000
Entergy Mississippi [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount					$ 69,000,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress		266,686,000												266,686,000		266,686,000								95,452,000	95,452,000
Proceeds from the issuance of long-term debt																249,746,000	200,543,000
Public Utilities, Requested Return on Equity, Percentage					6.70%
Interim increase in formula rate plan revenues		$ 34,300,000			$ 34,500,000
Interim increase in formula rate plan revenues due to adjustments					24,300,000
Regulatory Asset [Abstract]
Earned return on common equity		5.99%
Deferred Fuel Cost		$ 246,630,000												246,630,000		246,630,000								121,878,000	121,878,000
Replacement Reserve Escrow		41,100,000												41,100,000		41,100,000								48,900,000	48,900,000
Potential settlement refund		353,000,000
Entergy Mississippi [Member] | Formula Rate Plan Historical Year Rate Adjustment Member
Regulatory Asset [Abstract]
Regulatory Assets, Noncurrent																								19,000,000	19,000,000
Entergy Mississippi [Member] | Deferred COVID 19 Costs
Regulatory Asset [Abstract]
Regulatory Assets		13,100,000												13,100,000		$ 13,100,000
Entergy Mississippi [Member] | Grand Gulf [Member]
Regulatory Asset [Abstract]
Long-term Contract for Purchase of Electric Power, Share of Plant Output Being Purchased																40.00%
Entergy Mississippi [Member] | Maximum [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount					$ 48,600,000
Public Utilities, Requested Rate Increase (Decrease), Percentage				2.00%	4.00%
Entergy Mississippi [Member] | Subsequent Event [Member]
Regulatory Asset [Abstract]
Interim fuel refund for cumulative over-recovery	$ 14,100,000
MPSC settlement refund	235,000,000
Entergy New Orleans [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount				$ 42,100,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress		32,408,000												32,408,000		$ 32,408,000								22,199,000	22,199,000
Regulatory Asset [Abstract]
Long-term Transition Bond, Noncurrent		23,866,000												23,866,000		23,866,000								29,661,000	29,661,000
Earned return on common equity				6.88%
Authorized return on common equity				9.35%
Deferred Fuel Cost		23,992,000												23,992,000		23,992,000								0	0
Long-term Transition Bond, Noncurrent		23,866,000												23,866,000		23,866,000								29,661,000	29,661,000
Entergy New Orleans [Member] | Deferred COVID 19 Costs
Regulatory Asset [Abstract]
Regulatory Assets		14,500,000												14,500,000		14,500,000
Entergy New Orleans [Member] | Hurricane Zeta
Total Restoration Costs For Repair and Replacement of Electrical System										$ 36,000,000
Regulatory Asset [Abstract]
Excess withdrawn replacement reserve escrow			7,000,000
Withdrawal from storm reserves			44,000,000									$ 44,000,000
Prudently incurred storm restoration costs			$ 33,000,000
Estimated costs included in filing for total restoration costs for repair and replacement of electrical system										$ 7,000,000
Entergy New Orleans [Member] | Hurricane Ida
Total Restoration Costs For Repair and Replacement of Electrical System		170,000,000
Regulatory Asset [Abstract]
Replacement Reserve Escrow																											$ 39,000,000
Excess withdrawn replacement reserve escrow		7,000,000												7,000,000		7,000,000
Reduction to requested total restoration costs for repair and replacement of electrical system		46,000,000
Entergy New Orleans [Member] | Electricity [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount				$ 34,100,000
Regulatory Asset [Abstract]
Additional revenue increase due to previously approved amounts				4,700,000
Entergy New Orleans [Member] | Natural Gas, US Regulated [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount				3,300,000
Entergy New Orleans [Member] | Subsequent Event [Member] | Hurricane Ida
Regulatory Asset [Abstract]
Carrying costs associated with storm restoration costs																		9,000,000
Entergy New Orleans [Member] | Subsequent Event [Member] | Electricity [Member]
Regulatory Asset [Abstract]
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount	$ 17,100,000
Entergy Texas [Member]
Public Utilities, Property, Plant and Equipment, Construction Work in Progress		245,788,000												245,788,000		245,788,000								183,965,000	183,965,000
Proceeds from the issuance of long-term debt																286,842,000	0
Regulatory Asset [Abstract]
Long-term Transition Bond, Noncurrent		312,129,000												312,129,000		312,129,000								53,979,000	53,979,000
Deferred Fuel Cost		189,472,000												189,472,000		189,472,000								48,280,000	48,280,000
Interim fuel surcharge, including interest, for under-recovery of fuel and purchased power costs																									51,700,000
Long-term Transition Bond, Noncurrent		312,129,000												312,129,000		312,129,000								53,979,000	53,979,000
Interim fuel surcharge, including interest, for under-recovery of fuel and purchased power costs																									51,700,000
Entergy Texas [Member] | Aggregate Senior secured restoration bonds (securitization bonds)
Regulatory Asset [Abstract]
Proceeds from Issuance of Debt				290,850,000
Entergy Texas [Member] | Deferred COVID 19 Costs
Regulatory Asset [Abstract]
Regulatory Assets		10,400,000												10,400,000		10,400,000
Entergy Texas [Member] | Hurricanes Laura and Delta and Winter Storm Uri
Regulatory Asset [Abstract]
Aggregate principal amount of system restoration bonds authorization requested																										$ 242,900,000
Reclassification from utility plant to other regulatory assets					$ 153,000,000																		$ 153,000,000
Entergy Texas [Member] | Hurricanes Laura and Delta and Winter Storm Uri | Aggregate Senior secured restoration bonds (securitization bonds)
Regulatory Asset [Abstract]
Proceeds from Issuance of Debt				290,850,000
Entergy Arkansas [Member]
Public Utilities, Property, Plant and Equipment, Construction Work in Progress		371,705,000												371,705,000		371,705,000								241,127,000	241,127,000
Proceeds from the issuance of long-term debt																223,882,000	694,137,000
Regulatory Asset [Abstract]
Energy Cost Recovery Rider Rate Per kWh																							0.00959
Deferred Fuel Cost		111,147,000												111,147,000		111,147,000								108,862,000	108,862,000
Entergy Arkansas [Member] | Deferred COVID 19 Costs
Regulatory Asset [Abstract]
Regulatory Assets		36,600,000												36,600,000		36,600,000
Entergy Arkansas [Member] | 2021 February Winter Storms
Regulatory Asset [Abstract]
Deferred Fuel Cost					32,000,000																		$ 32,000,000
Entergy Arkansas [Member] | Subsequent Event [Member]
Regulatory Asset [Abstract]
Energy Cost Recovery Rider Rate Per kWh																						$ 0.016390
Requested Energy Cost Recovery Rider Rate Per kWh																						$ 0.01785
Annual revenue constraint per rate class percentage	400.00%
System Energy [Member]
Public Utilities, Property, Plant and Equipment, Construction Work in Progress		79,596,000												79,596,000		79,596,000								$ 97,968,000	$ 97,968,000
Proceeds from the issuance of long-term debt																$ 556,696,000	$ 453,981,000
Regulatory Asset [Abstract]
Earned return on common equity																10.94%
Recommended adjustment to earned return on equity												9.32%
Estimated return on equity complaint refund																$ 61,000,000
Return on equity complaint, estimated annual rate reduction		50,000,000												50,000,000		50,000,000
Regulatory charge related to System Energy settlement		551,000,000
Regulatory charge related to System Energy settlement - net of tax		413,000,000
Previously recorded liability related to applicable litigation		37,000,000
Regulatory Liability related to potential settlement refund		588,000,000												588,000,000		$ 588,000,000
System Energy [Member] | Maximum [Member]
Regulatory Asset [Abstract]
ALJ recommended equity capital structure, percentage												48.15%
System Energy [Member] | Subsequent Event [Member]
Regulatory Asset [Abstract]
Authorized return on common equity	9.65%
Public Utilities, Approved Equity Capital Structure, Percentage	52.00%
Potential settlement refund	$ 588,250,000
Entergy Finance Company, LLC
Regulatory Asset [Abstract]
Class preferred non voting membership interest units acquired in wholly owned subsidiary | shares			31,635,718.7221
Preferred Stock, Dividend Rate, Percentage			7.00%
Proceeds from issuance of preferred interest distributed from EFC to EHC			$ 1,400,000,000
Proceeds from issuance of preferred interest distributed from EFC to ETR			1,700,000,000
Preferred Stock, Liquidation Preference, Value			$ 100
Entergy Holdings Company, LLC | Hurricane Katrina and Hurricane Rita
Regulatory Asset [Abstract]
Class preferred non voting membership interest units acquired in wholly owned subsidiary | shares			6,843,780.24
Entergy Holdings Company, LLC | Hurricane Gustav and Hurricane Ike
Regulatory Asset [Abstract]
Class preferred non voting membership interest units acquired in wholly owned subsidiary | shares			4,126,940.15
Entergy Holdings Company, LLC | Hurricane Isaac
Regulatory Asset [Abstract]
Class preferred non voting membership interest units acquired in wholly owned subsidiary | shares			2,935,152.69
Grand Gulf [Member] | System Energy [Member]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage																11.50%
Legacy Entergy Louisiana [Member] | Entergy Louisiana [Member]
Regulatory Asset [Abstract]
Formula rate plan revenue increase			$ 86,000,000
Legacy Entergy Gulf States Louisiana [Member] | Entergy Louisiana [Member]
Regulatory Asset [Abstract]
Formula rate plan revenue increase			66,900,000
Distribution Cost Recovery Factor Rider [Member] | Entergy Texas [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount									$ 40,200,000
Revenue increase resulting from incremental revenue																			$ 13,900,000
Generation Cost Recovery Rider | Entergy Texas [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount						5,000,000	$ 88,300,000
Generation Cost Recovery Rider | Entergy Texas [Member] | Subsequent Event [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount																		92,800,000
Revenue increase resulting from incremental revenue																		$ 4,500,000
Grand Gulf Sale-leaseback Renewal Complaint | System Energy [Member]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage													11.50%
Regulatory Asset [Abstract]
Refund of Lease Payments																												$ 17,200,000
Remaining net book value of the leased assets																												$ 70,000,000
Rate reduction for ADIT associated with uncertain tax positions resulting from Grand Gulf sale-leaseback		422,000,000												422,000,000		$ 422,000,000
Interest Portion of rate reduction for ADIT associated with uncertain tax positions resulting from Grand Gulf sale-leaseback		139,000,000												139,000,000		139,000,000
Refund related to depreciation expense adjustments		$ 19,000,000												$ 19,000,000		$ 19,000,000
Unit Power Sales Agreement Complaint | System Energy [Member]
Regulatory Asset [Abstract]
FERC staff recommended refund				$ 106,600,000	$ 84,100,000
New Orleans City Council Recommended Hypothetical Equity Ratio Prospectively																								48.15%	48.15%
New Orleans City Council Witness Recommended Refund																								$ 98,800,000	$ 98,800,000
New Orleans City Council proposed refunds related to the money pool			51,700,000
LPSC estimated refund without interest			286,000,000
Reduction in the revenue requirement			1,500,000
Reduction in revenue requirement - money pool credited through UPSA			1,900,000
Reduction in revenue requirement for every $50M in refunds			1,900,000
Amount of refunds ordered in a given year			$ 50,000,000
System Energy Formula Rate Annual Protocols Formal Challenge | Entergy Mississippi [Member]
Regulatory Asset [Abstract]
Amount of retail customers receiving bill credit		460,000												460,000		460,000
System Energy Formula Rate Annual Protocols Formal Challenge | Entergy Mississippi [Member] | Subsequent Event [Member]
Regulatory Asset [Abstract]
Amount of refunds ordered in a given year	80
Payments for Legal Settlements	235,000,000
System Energy Formula Rate Annual Protocols Formal Challenge | System Energy [Member]
Regulatory Asset [Abstract]
Estimated financial impact						$ 53,000,000
Transmission Cost Recovery Factor Rider [Member] | Entergy Texas [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount								$ 66,100,000
Revenue increase resulting from incremental revenue																				$ 15,100,000
2022 Base Rate Case | Entergy Texas [Member] | Subsequent Event [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount	131,400,000
2022 Formula Rate Plan | Entergy Arkansas [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount																								$ 15,200,000
Regulatory Asset [Abstract]
Earned return on common equity																								8.38%
2022 Formula Rate Plan | Entergy Arkansas [Member] | Subsequent Event [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount	119,900,000																				$ 104,800,000
Public Utilities, Requested Return on Equity, Percentage																					7.40%
Regulatory Asset [Abstract]
Reduced proposed increase in revenue requirement to comply with annual revenue constraint	$ 79,300,000