Rate And Regulatory Matters (Narrative - All Other) (Details)	1 Months Ended									3 Months Ended			6 Months Ended			12 Months Ended
	Aug. 31, 2024 USD ($)	Jul. 31, 2024 USD ($)	Jun. 30, 2024 USD ($) kWh	Apr. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Feb. 29, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jul. 31, 2020 USD ($)	Dec. 31, 2018 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2025 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Regulatory Liability, Noncurrent			$ 3,488,314,000				$ 3,116,926,000			$ 3,488,314,000				$ 3,488,314,000					$ 3,116,926,000
Regulatory Asset, Noncurrent			5,408,682,000				5,669,404,000			5,408,682,000				5,408,682,000					5,669,404,000
Asset Impairment Charges										0		$ 0		131,775,000	$ 0
Entergy Arkansas [Member]
Regulatory Liability, Noncurrent			803,680,000				759,181,000			803,680,000				803,680,000					759,181,000
Regulatory Asset, Noncurrent			1,705,642,000				1,885,361,000			1,705,642,000				1,705,642,000					1,885,361,000
Payments for Legal Settlements									$ 135,000,000
Refund to customers, plus interest, associated with recalculated bandwidth remedy								$ 13,700,000
Asset Impairment Charges										0		$ 0		131,775,000	$ 0
Entergy Arkansas [Member] | Opportunity Sales [Member]
Regulatory Asset, Noncurrent							131,800,000												131,800,000
Asset Impairment Charges											$ 131,800,000
Asset Impairment Charges, net of tax											99,100,000
Entergy Louisiana [Member]
Regulatory Liability, Noncurrent			1,692,861,000				1,407,689,000			1,692,861,000				1,692,861,000					1,407,689,000
Regulatory Asset, Noncurrent			1,657,857,000				1,648,852,000			1,657,857,000				1,657,857,000					1,648,852,000
Entergy Mississippi [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount					$ 5,200,000
Regulatory Liability, Noncurrent			35,912,000				33,696,000			35,912,000				35,912,000					33,696,000
Regulatory Asset, Noncurrent			573,751,000				579,076,000			573,751,000				573,751,000					579,076,000
Monthly storm damage provision						$ 1,750,000
Storm Damage Provision Balance					70,000,000	15,000,000	15,000,000				70,000,000							$ 70,000,000	15,000,000
Storm damage provision balance at which collections will resume					60,000,000	10,000,000
Disbursement from storm reserve rescrow							34,500,000
Entergy New Orleans [Member]
Regulatory Liability, Noncurrent			259,613,000				90,434,000			259,613,000				259,613,000					90,434,000
Regulatory Asset, Noncurrent			171,294,000				182,367,000			171,294,000				171,294,000					182,367,000
Entergy New Orleans [Member] | Credits expected to be shared with customers from resolution of the 2016-2018 IRS audit [Member]
Regulatory Liability, Noncurrent				$ 138,000,000	138,000,000		60,000,000				138,000,000							138,000,000	60,000,000
Entergy Texas [Member]
Regulatory Liability, Noncurrent			27,938,000				43,013,000			27,938,000				27,938,000					43,013,000
Regulatory Asset, Noncurrent			$ 556,409,000				596,606,000			556,409,000				556,409,000					$ 596,606,000
Energy Cost Recovery Rider [Member] | Entergy Arkansas [Member]
Energy Cost Recovery Rider Rate Per kWh				0.00882														0.01883
Credit for recovery attributed to net metering costs											9,000,000
Adjustment to over-recovery balance					$ 43,700,000						$ 43,700,000							$ 43,700,000
Energy Cost Recovery Rider [Member] | Entergy Arkansas [Member] | Subsequent Event [Member]
Requested Energy Cost Recovery Rider Rate Per kWh																	$ 0.00882
2024 Formula Rate Plan Filing [Member] | Entergy Arkansas [Member]
Public Utilities, Requested Return on Equity, Percentage																			7.48%
Projected Revenue Deficiency																			$ 33,100,000
2024 Formula Rate Plan Filing [Member] | Entergy Arkansas [Member] | Subsequent Event [Member]
Public Utilities, Requested Return on Equity, Percentage																8.43%
Projected Revenue Deficiency																$ 69,500,000
Public Utilities, Requested Rate Increase (Decrease), Amount		$ 102,600,000
Annual revenue constraint per rate class percentage		4.00%
2024 Formula Rate Plan Filing [Member] | Entergy Arkansas [Member] | Subsequent Event [Member] | Maximum [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount		$ 82,600,000
2024 Formula Rate Plan Filing [Member] | Entergy Mississippi [Member]
Public Utilities, Requested Return on Equity, Percentage					7.10%
Public Utilities, Requested Rate Increase (Decrease), Amount					$ 63,400,000
Public Utilities, Interim Rate Increase (Decrease), Amount				$ 32,600,000	$ 0
Annual depreciation expense increase						$ 55,200,000
Earned return on rate base			6.08%																6.81%
Public Utilities, Approved Rate Increase (Decrease), Amount			$ 64,600,000																$ 300,000
Regulatory Asset, Noncurrent			7,300,000							7,300,000				$ 7,300,000
2024 Formula Rate Plan Filing [Member] | Entergy Mississippi [Member] | Residential [Member]
Customer charge			$ 31.82
Average customer usage | kWh			1,000
2024 Formula Rate Plan Filing [Member] | Entergy Mississippi [Member] | General service
Customer charge			$ 53.10
2024 Formula Rate Plan Filing [Member] | Entergy Mississippi [Member] | Maximum [Member]
Cap on retail revenues in look-back filing				0.02
2024 Formula Rate Plan Filing [Member] | Entergy Mississippi [Member] | Subsequent Event [Member]
Public Utilities, Interim Rate Increase (Decrease), Amount													$ 8,700,000
2024 Formula Rate Plan Filing [Member] | Entergy New Orleans [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount				$ 12,600,000
Public Utilities, Approved Return on Equity, Percentage				9.35%
2024 Formula Rate Plan Filing [Member] | Entergy New Orleans [Member] | Electricity [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount				$ 7,000,000
Earned return on equity				8.66%
2024 Formula Rate Plan Filing [Member] | Entergy New Orleans [Member] | Natural Gas, US Regulated [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount				$ 5,600,000
Earned return on equity				5.87%
2024 Formula Rate Plan Filing [Member] | Entergy New Orleans [Member] | Subsequent Event [Member]
Requested reduction to formula rate plan revenues resulting from alleged errors		$ 1,600,000
Grand Gulf Credit Rider [Member] | Entergy Arkansas [Member] | Subsequent Event [Member]
Refund to retail customers	$ 100,600,000
2023 Entergy Louisiana Rate Case and Formula Rate Plan Extension Request | Entergy Louisiana [Member]
Expenses reflecting effects of agreement in principle										151,000,000
Expenses reflecting effects of agreement in principle, net of tax										$ 111,000,000
2023 Entergy Louisiana Rate Case and Formula Rate Plan Extension Request | Entergy Louisiana [Member] | Credits expected to be shared with customers from resolution of the 2016-2018 IRS audit [Member]
Regulatory Liability, Noncurrent							$ 38,000,000												$ 38,000,000
2023 Entergy Louisiana Rate Case and Formula Rate Plan Extension Request | Entergy Louisiana [Member] | Subsequent Event [Member]
Public Utilities, Requested Return on Equity, Percentage	9.70%
Public Utilities, Requested Rate Increase (Decrease), Amount	$ 120,000,000
Customer rate credits	$ 184,000,000
Public Utilities, Approved Return on Equity, Percentage	9.50%
Basis points bandwidth above and below midpoint return on common equity	40
Increase in nuclear depreciation rates	$ 15,000,000
2023 Entergy Louisiana Rate Case and Formula Rate Plan Extension Request | Entergy Louisiana [Member] | Subsequent Event [Member] | System Energy Settlement with the LPSC
Customer rate credits	75,800,000
2023 Entergy Louisiana Rate Case and Formula Rate Plan Extension Request | Entergy Louisiana [Member] | Subsequent Event [Member] | Formula Rate Plan Global Settlement
Customer rate credits	5,800,000
2023 Entergy Louisiana Rate Case and Formula Rate Plan Extension Request | Entergy Louisiana [Member] | Subsequent Event [Member] | Maximum [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount	140,000,000
2023 Entergy Louisiana Rate Case and Formula Rate Plan Extension Request | Entergy Louisiana [Member] | Subsequent Event [Member] | Maximum [Member] | 2023
Public Utilities, Requested Rate Increase (Decrease), Amount	350,000,000
2023 Entergy Louisiana Rate Case and Formula Rate Plan Extension Request | Entergy Louisiana [Member] | Subsequent Event [Member] | Maximum [Member] | 2024
Public Utilities, Requested Rate Increase (Decrease), Amount	375,000,000
2023 Entergy Louisiana Rate Case and Formula Rate Plan Extension Request | Entergy Louisiana [Member] | Subsequent Event [Member] | Maximum [Member] | 2025
Public Utilities, Requested Rate Increase (Decrease), Amount	$ 400,000,000
Distribution Cost Recovery Factor Rider [Member] | Entergy Texas [Member]
Public Utilities, Requested Rate Increase (Decrease), Amount			$ 40,300,000