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Long-Term transition bonds are bonds under the Competition Act in which the proceeds of Transition Bonds are required to be used principally to reduce qualified stranded costs and the related capitalization of the utility. This represents the noncurrent portion.

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Long - Term Debt (Narrative) (Details) - USD ($)	1 Months Ended
Long - Term Debt (Narrative) (Details) - USD ($)	Jul. 31, 2015	May 31, 2015	Jun. 30, 2010	Sep. 30, 2009	Apr. 30, 2007	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Sep. 30, 2011	Aug. 31, 2010	Nov. 30, 2009	Jun. 30, 2007
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage												3.34%
Year One											$ 795,000,000
Year Two											1,358,159,000
Year Three											1,104,289,000
Year Four											1,865,154,000
Year Five											1,175,000,000
Bonds issued to recover cost											297,981,000	$ 423,858,000
Debt Instrument, Interest Rate, Stated Percentage												3.34%
System Energy [Member]
Debt Instrument [Line Items]
Year One											0
Year Two											131,600,000
Year Three											134,000,000
Year Four											250,000,000
Year Five											0
Regulatory Assets											75,900,000	$ 76,400,000
Regulatory Liabilities												55,600,000
Entergy Arkansas [Member]
Debt Instrument [Line Items]
Carrying costs on issuance of bonds to recover storm damage restoration costs			$ 11,500,000
Up Front Financing Costs On Issuance Of Bonds To Recover Storm Damage Restoration Costs			$ 4,600,000
Year One											0
Year Two											507,359,000
Year Three											0
Year Four											290,000,000
Year Five											375,000,000
Regulatory Assets											168,900,000	138,300,000
Bonds issued to recover cost											6,772,000	20,898,000
Entergy Louisiana [Member]
Debt Instrument [Line Items]
Year One											320,000,000
Year Two											360,200,000
Year Three											200,000,000
Year Four											379,185,000
Year Five											700,000,000
Bonds issued to recover cost											33,220,000	55,682,000
Regulatory Liabilities											2,400,000	18,800,000
Entergy New Orleans [Member]
Debt Instrument [Line Items]
Up Front Financing Costs On Issuance Of Bonds To Recover Storm Damage Restoration Costs		$ 3,000,000
Year One											25,000,000
Year Two											20,000,000
Year Three											70,000,000
Year Four											100,000,000
Year Five											0
Regulatory Assets											52,900,000	49,300,000
Cost recovered through issuance of securitization bonds		98,700,000
Bonds issued to recover cost											52,641,000	63,620,000
Amount of Hurricane Issac storm cost to be recovered through securitization		31,800,000
Replenishment amount for storm reserve spending		$ 63,900,000
Entergy Texas [Member]
Debt Instrument [Line Items]
Year One											0
Year Two											200,000,000
Year Three											50,289,000
Year Four											155,969,000
Year Five											0
Regulatory Assets											42,500,000	50,900,000
Bonds issued to recover cost											$ 205,349,000	$ 283,659,000
Hurricane Rita [Member] \| Entergy Texas [Member]
Debt Instrument [Line Items]
Cost recovered through issuance of securitization bonds					$ 353,000,000
Amount of storm cost recovery bonds for transaction costs					6,000,000
Deferred income tax benefits					$ 32,000,000
Bonds issued to recover cost																	$ 329,500,000
Hurricane Ike And Hurricane Gustav [Member] \| Entergy Texas [Member]
Debt Instrument [Line Items]
Cost recovered through issuance of securitization bonds				$ 566,400,000
Bonds issued to recover cost																$ 545,900,000
Securitization Bonds, 5.93% Series Senior Secured, Series A, Due June 2022 [Member] \| Entergy Texas [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage											5.93%	5.93%
Long-term Debt, Gross											$ 50,289,000	$ 81,237,000
Debt Instrument, Interest Rate, Stated Percentage											5.93%	5.93%
4.0% Series First Mortgage Bonds Due March 2029 [Member] \| Entergy Texas [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage											4.00%
Long-term Debt, Gross											$ 300,000,000	$ 0
Debt Instrument, Interest Rate, Stated Percentage											4.00%
4.50% Series First Mortgage Bonds Due March 2039 [Member] \| Entergy Texas [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage											4.50%
Long-term Debt, Gross											$ 400,000,000	$ 0
Debt Instrument, Interest Rate, Stated Percentage											4.50%
Securitization Bonds, 2.04% Series Senior Secured, Due September 2023 [Member] \| Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage											2.04%	2.04%		2.04%
Value of non interest bearing first mortgage bonds														$ 207,200,000
Long-term Debt, Gross											$ 34,185,000	$ 56,910,000
Debt Instrument, Interest Rate, Stated Percentage											2.04%	2.04%		2.04%
Securitization Bonds, 2.30% Series Senior Secured, Due August 2021 [Member] \| Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage											2.30%	2.30%			2.30%
Value of non interest bearing first mortgage bonds															$ 124,100,000
Year One											$ 7,300,000
Long-term Debt, Gross											$ 7,259,000	$ 21,692,000
Debt Instrument, Interest Rate, Stated Percentage											2.30%	2.30%			2.30%
Tranche A One Two Point Six Seven Percent Due June Two Thousand Twenty Seven [Member] \| Entergy New Orleans [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	2.67%
Issuance Of Debt	$ 98,700,000
Debt Instrument, Interest Rate, Stated Percentage	2.67%
Securitization Bonds, 4.38% Series Senior Secured, Due November 2023 [Member] \| Entergy Texas [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage											4.38%	4.38%
Long-term Debt, Gross											$ 155,969,000	$ 203,613,000
Debt Instrument, Interest Rate, Stated Percentage											4.38%	4.38%
Subsequent Event [Member] \| Hurricane Rita [Member] \| Entergy Texas [Member]
Debt Instrument [Line Items]
Year One										$ 32,800,000
Year Two									$ 17,500,000
Subsequent Event [Member] \| Hurricane Ike And Hurricane Gustav [Member] \| Entergy Texas [Member]
Debt Instrument [Line Items]
Year One										49,800,000
Year Two									52,000,000
Year Three								$ 54,300,000
Subsequent Event [Member] \| Tranche A One Two Point Six Seven Percent Due June Two Thousand Twenty Seven [Member] \| Entergy New Orleans [Member]
Debt Instrument [Line Items]
Year One										11,600,000
Year Two									11,900,000
Year Three								$ 12,200,000
Year Four							$ 12,500,000
Year Five						$ 6,200,000
Subsequent Event [Member] \| Securitization Bonds, 2.04% Series Senior Secured, Due September 2023 [Member] \| Entergy Louisiana [Member]
Debt Instrument [Line Items]
Year One										$ 23,200,000
Year Two									$ 11,000,000
Grand Gulf [Member] \| System Energy [Member]
Debt Instrument [Line Items]
Year One											$ 17,188,000	$ 17,188,000
Year Two											17,188,000	17,188,000
Year Three											17,188,000	17,188,000
Year Four											17,188,000	17,188,000
Year Five											17,188,000	17,188,000
Regulatory Assets												0
Regulatory Liabilities											$ 55,600,000	$ 55,600,000	$ 55,600,000