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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	Sep. 30, 2011	Aug. 31, 2010	Nov. 30, 2009	Jun. 30, 2007
Debt Instrument [Line Items]
Year One										$ 1,164,000,000
Year Two										1,141,878,000
Year Three										2,452,194,000
Year Four										1,340,000,000
Year Five										1,378,000,000
Bonds issued to recover cost										174,635,000	$ 297,981,000
System Energy [Member]
Debt Instrument [Line Items]
Year One										100,000,000
Year Two										134,000,000
Year Three										250,000,000
Year Four										0
Year Five										200,000,000
Regulatory Assets										92,900,000	75,900,000
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										485,000,000
Year Two										12,200,000
Year Three										290,000,000
Year Four										375,000,000
Year Five										0
Regulatory Assets										212,600,000	168,900,000
Bonds issued to recover cost										0	6,772,000
Entergy Louisiana [Member]
Debt Instrument [Line Items]
Year One										240,000,000
Year Two										258,200,000
Year Three										1,455,980,000
Year Four										700,000,000
Year Five										300,000,000
Regulatory Assets										302,500,000
Bonds issued to recover cost										10,278,000	33,220,000
Regulatory Liabilities											2,400,000
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										1,618,000
Year Two										71,326,000
Year Three										101,306,000
Year Four										1,275,000
Year Five										79,140,000
Regulatory Assets										63,200,000	52,900,000
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										200,000,000
Year Two										17,478,000
Year Three										106,214,000
Year Four										0
Year Five										0
Regulatory Assets										115,300,000	42,500,000
Bonds issued to recover cost										$ 123,066,000	205,349,000
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%
Long-term Debt, Gross										$ 17,478,000	50,289,000
Debt Instrument, Interest Rate, Stated Percentage										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	300,000,000
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	400,000,000
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%
Value of non interest bearing first mortgage bonds												$ 207,200,000
Long-term Debt, Gross										$ 10,980,000	34,185,000
Debt Instrument, Interest Rate, Stated Percentage										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%
Value of non interest bearing first mortgage bonds													$ 124,100,000
Year One										$ 7,300,000
Long-term Debt, Gross										$ 0	7,259,000
Debt Instrument, Interest Rate, Stated Percentage										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%
Long-term Debt, Gross										$ 106,214,000	155,969,000
Debt Instrument, Interest Rate, Stated Percentage										4.38%
Subsequent Event [Member] \| Hurricane Rita [Member] \| Entergy Texas [Member]
Debt Instrument [Line Items]
Year Two									$ 17,500,000
Subsequent Event [Member] \| Hurricane Ike And Hurricane Gustav [Member] \| Entergy Texas [Member]
Debt Instrument [Line Items]
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 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 Two									$ 11,000,000
Grand Gulf [Member] \| System Energy [Member]
Debt Instrument [Line Items]
Year One										$ 17,188,000
Year Two										17,188,000
Year Three										17,188,000
Year Four										17,188,000
Year Five										17,188,000
Regulatory Assets										0
Regulatory Liabilities										$ 55,600,000	$ 55,600,000