Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flow hedges net unrealized gain (loss), tax expense (benefit)	$ (55,298)	$ 3,752	$ 96,141
Pension and other postretirement liabilities, tax expense	(3,952)	61,576	(152,763)
Net unrealized investment gains, tax expense	57,277	(45,904)	66,594
Foreign currency translation, tax expense	(689)	(345)	(404)
Entergy Louisiana [Member]
Pension and other postretirement liabilities, tax expense	$ 5,034	$ 14,316	$ (25,984)