Rate And Regulatory Matters (Fuel And Purchased Power Cost Recovery) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred Fuel Cost Non Current	$ 239,496	$ 239,298
Entergy Arkansas [Member]
Deferred Fuel Cost Non Current	67,294	67,096
Deferred fuel costs	86,500	130,400
Entergy Louisiana [Member]
Deferred Fuel Cost Non Current	168,122	168,122
Deferred fuel costs	136,700	96,700
Entergy Mississippi [Member]
Deferred fuel costs	8,000	32,400
Entergy New Orleans [Member]
Deferred Fuel Cost Non Current	4,080	4,080
Deferred fuel costs	2,800	(3,700)
Entergy Texas [Member]
Deferred fuel costs	$ (19,700)	$ (67,300)