Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	$ (17,312)	$ 10,684	$ 8,037	$ 10,325
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	4,225	5,839	8,793	12,216
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	(2,842)	2,870	2,533	42,164
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	0	(403)	0	(403)
Entergy Louisiana [Member]
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	$ (177)	$ (292)	$ (353)	$ (524)