Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	$ 7,062	$ 11,172	$ 17,387	$ (28,605)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax	6,818	4,064	19,034	7,101
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	30,644	20,635	72,808	58,508
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	0	(48)	(403)	(688)
Entergy Louisiana [Member]
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax	$ (232)	$ (145)	$ (756)	$ (404)