Long - Term Debt (Schedule Of Senior Secured Transition Bonds) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Nov. 30, 2009	Jun. 30, 2007
Debt Instrument [Line Items]
Bonds issued to recover cost	$ 297,981	$ 423,858
Entergy Texas [Member]
Debt Instrument [Line Items]
Bonds issued to recover cost	205,349	283,659
Hurricane Rita [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Bonds issued to recover cost				$ 329,500
Hurricane Ike And Hurricane Gustav [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Bonds issued to recover cost			$ 545,900
Securitization Bonds, 5.93% Series Senior Secured, Series A, Due June 2022 [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	50,289	81,237
Securitization Bonds, 4.38% Series Senior Secured, Due November 2023 [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 155,969	$ 203,613