Long - Term Debt (Schedule Of Senior Secured Transition Bonds) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Nov. 30, 2009	Jun. 30, 2007
Debt Instrument [Line Items]
Bonds issued to recover cost	$ 423,858	$ 544,921
Entergy Texas [Member]
Debt Instrument [Line Items]
Bonds issued to recover cost	283,659	358,104
Hurricane Rita [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Bonds issued to recover cost	329,500			$ 329,500
Hurricane Ike And Hurricane Gustav [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Bonds issued to recover cost	545,900		$ 545,900
Tranche A-1 (2.12%) Due February 2016 [Member] | Hurricane Ike And Hurricane Gustav [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Bonds issued to recover cost	$ 182,500
Coupon rate of senior secured transition bonds	2.12%
Tranche A-1 (5.51%) Due October 2013 [Member] | Hurricane Rita [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Bonds issued to recover cost	$ 93,500
Coupon rate of senior secured transition bonds	5.51%
Tranche A-2 (3.65%) Due August 2019 [Member] | Hurricane Ike And Hurricane Gustav [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Bonds issued to recover cost	$ 144,800
Coupon rate of senior secured transition bonds	3.65%
Tranche A-2 (5.79%) Due October 2018 [Member] | Hurricane Rita [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Bonds issued to recover cost	$ 121,600
Coupon rate of senior secured transition bonds	5.79%
Tranche A-3 (5.93%) Due June 2022 [Member] | Hurricane Rita [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Bonds issued to recover cost	$ 114,400
Coupon rate of senior secured transition bonds	5.93%
Tranche A-3 (4.38%) Due November 2023 [Member] | Hurricane Ike And Hurricane Gustav [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Bonds issued to recover cost	$ 218,600
Coupon rate of senior secured transition bonds	4.38%
Securitization Bonds, 5.93% Series Senior Secured, Series A, Due June 2022 [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 81,237	110,431
Securitization Bonds, 4.38% Series Senior Secured, Due November 2023 [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 203,613	$ 218,600