Rate and Regulatory Matters (Storm Narrative) (Details)		1 Months Ended																									3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Jan. 01, 2018 USD ($)	Dec. 31, 2023 USD ($)	Aug. 31, 2023 USD ($)	Mar. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($)	Oct. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Aug. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	May 31, 2022 USD ($) shares	Apr. 30, 2022 USD ($)	Feb. 28, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Aug. 31, 2021	May 31, 2021 USD ($)	Apr. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Nov. 30, 2020 USD ($)	May 31, 2019 USD ($)	May 31, 2015 USD ($)	Aug. 31, 2014 USD ($) $ / unit shares	Jun. 30, 2014 USD ($)	Jul. 31, 2010 USD ($) $ / unit shares	Aug. 31, 2008 USD ($) $ / unit shares	Jul. 31, 2008 USD ($) shares	Mar. 31, 2023 USD ($) shares	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2017 USD ($)	Jan. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Jan. 31, 2022 USD ($)	Feb. 29, 2012 shares	Apr. 30, 2010 USD ($)	Aug. 26, 2008 USD ($)	Jul. 29, 2008 USD ($)	Apr. 30, 2008 USD ($)
Regulatory Asset [Line Items]
Long-term debt																														$ 4,273,297,000	$ 6,019,835,000	$ 8,308,427,000
Storm Reserve Escrow Account		$ 323,206,000			$ 401,955,000																								$ 401,955,000	$ 323,206,000	401,955,000
Reduction of income tax expense				$ 129,000,000						$ 283,000,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%																													21.00%				35.00%	35.00%
4.00% Series mortgage bonds due July 2022 [Member]
Regulatory Asset [Line Items]
Debt Instrument, Interest Rate, Stated Percentage										4.00%
Repayments of First Mortgage Bond										$ 650,000,000
Mortgage Bonds Zero Point Six Two Percent Series Due November 2023 [Member]
Regulatory Asset [Line Items]
Debt Instrument, Interest Rate, Stated Percentage										0.62%
Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Long-term debt																														$ 1,410,893,000	2,942,771,000	3,769,166,000
Amount transfer from restricted escrow account as storm damage reserve																			$ 257,000,000
Total Restoration Costs For Repair and Replacement of Electrical System including carrying costs											$ 2,640,000,000
Storm Reserve Escrow Account		243,819,000			293,406,000							$ 290,000,000					$ 290,000,000												293,406,000	243,819,000	293,406,000
Aggregate principal amount of system restoration bonds authorization requested												3,186,000,000
Reclassification from utility plant to other regulatory assets																																					$ 1,942,000,000
LCDA issuance of bonds under Act 293 financing										$ 3,194,000,000
Class preferred non voting membership interest units acquired in majority owned subsidiary | shares				14,576,757.48						31,635,718.7221																	14,576,757.48
LURC's percentage of annual dividends										1.00%
Entergy Louisiana's percentage of annual dividends										99.00%																		99.00%
Preferred Stock, Dividend Rate, Percentage				7.50%						7.00%
Preferred Stock, Liquidation Preference, Value				$ 100						$ 100																	$ 100
Proceeds from Contributed Capital										1,000,000,000
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				133,000,000						290,000,000
Regulatory charge recorded as a result of reduction in income tax expense				103,000,000						224,000,000																	103,000,000
Regulatory charge recorded as a result of reduction in income tax expense, net of tax				$ 76,000,000						165,000,000																	$ 76,000,000
LURC's beneficial interest in the storm trust, percentage				1.00%																							1.00%	1.00%
Reduction to income tax expense - net of provision for uncertain tax positions																											$ 133,000,000
Reduction to income tax expense - net, offset by other tax charges																											129,000,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent																																	21.00%
Minimum customer benefits																							$ 30,800,000
Annual customer credits																							$ 6,200,000
LCDA issuance of bonds under Louisiana Act 55 financing																						$ 314,850,000
Bond proceeds loaned by LCDA to LURC under Louisiana Act 55 financing																						309,000,000
Amount transfered to restricted escrow account as storm damage reserve																						16,000,000
Bond proceeds transfered to company under Louisiana Act 55 financing																						$ 293,000,000
LURC's beneficial interest in the storm trust										31,600,000
Entergy Louisiana [Member] | Entergy Finance Company [Member]
Regulatory Asset [Line Items]
LURC's beneficial interest in the storm trust																											14,600,000
Entergy Louisiana [Member] | Unsecured Term Loan due June 2023 [Member]
Regulatory Asset [Line Items]
Repayments of Unsecured Debt										1,200,000,000
Entergy Louisiana [Member] | Mortgage Bonds Zero Point Six Two Percent Series Due November 2023 [Member]
Regulatory Asset [Line Items]
Repayments of First Mortgage Bond										435,000,000
Entergy Louisiana [Member] | Hurricanes Laura, Delta, Zeta, and Winter Storm Uri [Member]
Regulatory Asset [Line Items]
Total Restoration Costs For Repair and Replacement of Electrical System																	2,060,000,000.00
Deferred Storm and Property Reserve Deficiency, Noncurrent																	1,680,000,000
Non-capital storm costs																	380,000,000
Total Restoration Costs For Repair and Replacement of Electrical System including carrying costs											32,000,000	2,100,000,000					2,110,000,000
Storm carrying costs												51,000,000
Carrying costs associated with storm restoration costs																													3,000,000
Aggregate principal amount of system restoration bond authorization approved				$ 1,491,000,000																							$ 1,491,000,000
Entergy Louisiana [Member] | Hurricanes Laura, Delta, Zeta, and Winter Storm Uri [Member] | Storm Costs [Member]
Regulatory Asset [Line Items]
Regulatory Asset																												$ 180,000,000
Entergy Louisiana [Member] | Hurricane Ida [Member]
Regulatory Asset [Line Items]
Total Restoration Costs For Repair and Replacement of Electrical System						$ 2,640,000,000					2,540,000,000
Deferred Storm and Property Reserve Deficiency, Noncurrent											1,960,000,000	1,000,000,000		$ 1,000,000,000																							1,000,000,000
Non-capital storm costs											586,000,000
Total Restoration Costs For Repair and Replacement of Electrical System including carrying costs											2,600,000,000
Aggregate principal amount of system restoration bonds authorization requested														1,000,000,000
Carrying costs associated with storm restoration costs						$ 59,100,000					57,000,000
Entergy Louisiana [Member] | Hurricane Katrina and Hurricane Rita [Member]
Regulatory Asset [Line Items]
Minimum amount of benefits committed to pass on to the customers																																											$ 40,000,000
Prospective Annual rate reductions for five years																																											$ 8,000,000
Reduction to Louisiana Act 55 financing savings obligation regulatory liability due to Tax Cuts and Jobs Act	$ 22,300,000
Issuance of bond by government authority																																									$ 278,400,000	$ 687,700,000
Proceed from loan by government authority to corporation																									$ 274,700,000	$ 679,000,000
Amount transfer to restricted escrow account as storm damage reserve by corporation																									87,000,000	152,000,000
Amount Transferred to subsidiary																									187,700,000	527,000,000
Amount used to acquire membership interest units in wholly owned Subsidiary																									$ 189,400,000	$ 545,000,000
Class preferred non voting membership interest units acquired in wholly owned Subsidiary | shares																									1,893,918.39	5,449,861.85
Annual distribution rate																									10.00%	10.00%
Liquidation price per unit | $ / unit																									100
Net worth required under terms of membership interest																									$ 1,000,000,000
Amount withdrawn from restricted escrow account as approved by units of wholly owned subsidiary																									$ 1,700,000	$ 17,800,000
Entergy Louisiana [Member] | Hurricane Gustav And Ike [Member]
Regulatory Asset [Line Items]
Minimum amount of benefits committed to pass on to the customers																																								$ 43,300,000
Prospective Annual rate reductions for five years																																								$ 8,700,000
Reduction to Louisiana Act 55 financing savings obligation regulatory liability due to Tax Cuts and Jobs Act																																			$ 2,700,000
Issuance of bond by government authority																								$ 713,000,000
Proceed from loan by government authority to corporation																								702,700,000
Amount transfer to restricted escrow account as storm damage reserve by corporation																								290,000,000
Amount Transferred to subsidiary																								412,700,000
Amount used to acquire membership interest units in wholly owned Subsidiary																								$ 412,700,000
Class preferred non voting membership interest units acquired in wholly owned Subsidiary | shares																								4,126,940.15
Annual distribution rate																								9.00%
Liquidation price per unit | $ / unit																								100
Net worth required under terms of membership interest																								$ 1,000,000,000
Entergy Louisiana [Member] | Hurricanes Ida, Laura, Delta, Zeta, and Winter Storm Uri [Member]
Regulatory Asset [Line Items]
Total Restoration Costs For Repair and Replacement of Electrical System					2,570,000,000
Aggregate principal amount of system restoration bonds authorization requested					1,657,000,000																								1,657,000,000		1,657,000,000					$ 1,491,000,000
Carrying costs associated with storm restoration costs					59,200,000
Entergy Finance Company, LLC [Member]
Regulatory Asset [Line Items]
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
Entergy Holdings Company LLC [Member]
Regulatory Asset [Line Items]
Class preferred non voting membership interest units acquired in wholly owned Subsidiary | shares																						2,935,152.69
Annual distribution rate																						7.50%
Liquidation price per unit | $ / unit																						100
Net worth required under terms of membership interest																						$ 1,750,000,000
Entergy Holdings Company LLC [Member] | Hurricane Katrina and Hurricane Rita [Member]
Regulatory Asset [Line Items]
Class preferred non voting membership interest units acquired in majority owned subsidiary | shares										6,843,780.24
Class preferred non voting membership interest units sold in majority owned subsidiary | shares																																							500,000
Entergy Holdings Company LLC [Member] | Hurricane Gustav And Ike [Member]
Regulatory Asset [Line Items]
Class preferred non voting membership interest units acquired in majority owned subsidiary | shares										4,126,940.15
Entergy Holdings Company LLC [Member] | Hurricane Isaac [Member]
Regulatory Asset [Line Items]
Class preferred non voting membership interest units acquired in majority owned subsidiary | shares										2,935,152.69
Entergy Mississippi [Member]
Regulatory Asset [Line Items]
Long-term debt																														396,833,000	249,266,000	398,284,000
Storm Reserve Escrow Account		656,000			33,549,000																								33,549,000	656,000	33,549,000
Monthly storm damage provision																														1,750,000
Authorized Storm Damage Reserve Balance		15,000,000																												15,000,000
Balance At Which Storm Damage Accrual Will Return To Current Level																				$ 10,000,000										10,000,000
Withdrawal from storm reserves		34,500,000
Entergy New Orleans [Member]
Regulatory Asset [Line Items]
Long-term debt																														14,610,000	0	183,403,000
Storm Reserve Escrow Account		$ 78,731,000			75,000,000																								75,000,000	78,731,000	75,000,000
Withdrawal from storm reserves																		$ 44,000,000
Replenishment amount for storm reserve spending																					$ 63,900,000
Up front financing costs associated with securitization																					$ 3,000,000
Entergy New Orleans [Member] | Hurricane Ida [Member]
Regulatory Asset [Line Items]
Total Restoration Costs For Repair and Replacement of Electrical System									$ 170,000,000
Carrying costs associated with storm restoration costs																													9,000,000
Withdrawal from storm reserves					125,000,000									39,000,000
Estimated costs included in filing for total restoration costs for repair and replacement of electrical system									11,000,000
Prudently incurred storm restoration costs			$ 164,100,000
Outages from storm															100.00%
Reduction to requested total restoration costs for repair and replacement of electrical system									$ 46,000,000
Replenishment amount for storm reserve spending												$ 150,000,000
initial funding for storm reserve spending								$ 75,000,000
storm restoration costs approved for securitization							$ 206,000,000
storm securitization costs approved for securitization allocated to Hurricane Ida							$ 125,000,000
Carrying costs associated with storm restoration costs deemed prudently incurred			7,500,000
Storm costs deemed previously recovered through base rates			1,200,000
Credits available to be applied to future storm costs			$ 900,000
Entergy New Orleans [Member] | Hurricane Zeta [Member]
Regulatory Asset [Line Items]
Total Restoration Costs For Repair and Replacement of Electrical System																$ 36,000,000
Estimated costs included in filing for total restoration costs for repair and replacement of electrical system																$ 7,000,000
Prudently incurred storm restoration costs										$ 33,000,000
Excess withdrawn replacement reserve escrow										$ 7,000,000
Entergy New Orleans [Member] | Hurricane [Member]
Regulatory Asset [Line Items]
Issuance of bond by government authority					209,300,000																								$ 209,300,000		209,300,000
Amount transfer to restricted escrow account as storm damage reserve by corporation					200,000,000
Proceeds from Debt, Net of Issuance Costs					201,800,000
Up front financing costs associated with securitization					$ 1,800,000
Entergy Texas [Member]
Regulatory Asset [Line Items]
Long-term debt																														$ 344,895,000	$ 606,168,000	$ 127,931,000
Entergy Texas [Member] | Hurricanes Laura and Delta and Winter Storm Uri [Member]
Regulatory Asset [Line Items]
Total Restoration Costs For Repair and Replacement of Electrical System													$ 243,000,000				250,000,000
Deferred Storm and Property Reserve Deficiency, Noncurrent																	200,000,000
Non-capital storm costs																	50,000,000
Reclassification from utility plant to other regulatory assets																																					$ 153,000,000
Amount to be charged to storm reserve and excluded from securitization														4,300,000
Amount to be excluded from securitization related to no particular issue														5,000,000
Attestation costs to be excluded from securitization														$ 300,000
Entergy Texas [Member] | Hurricanes Laura and Delta and Winter Storm Uri [Member] | Aggregate Senior secured restoration bonds (securitization bonds) [Member]
Regulatory Asset [Line Items]
Proceeds from Issuance of Debt											$ 290,850,000
Entergy Texas [Member] | Hurricane Harvey [Member]
Regulatory Asset [Line Items]
Regulatory Asset																																						$ 13,300,000
Remaining restoration costs for repair and replacement of electrical system; previously-approved													$ 13,000,000				$ 13,000,000
Mortgage Bonds Zero Point Six Two Percent Series Due November 2023 [Member] | Entergy Louisiana [Member]
Regulatory Asset [Line Items]
Long-term debt																			$ 1,100,000,000
Debt Instrument, Interest Rate, Stated Percentage																			0.62%