Retirement And Other Postretirement Benefits (Reclassification Out Of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Defined Benefit Plan Disclosure [Line Items]
Total
Parent Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	$ 7,355	5,985	$ 14,710	$ 11,971
Amortization of loss	(15,177)	(17,588)	(30,352)	(35,176)
Total	(7,822)	(11,603)	(15,642)	(23,205)
Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	1,947	1,866	3,894	3,733
Amortization of loss	(1,573)	(2,535)	(3,142)	(5,070)
Total	374	(669)	752	(1,337)
Pension Plans Defined Benefit [Member] | Parent Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	(270)	(389)	(540)	(778)
Amortization of loss	(12,482)	(12,627)	(24,964)	(25,254)
Total	(12,752)	(13,016)	(25,504)	(26,032)
Pension Plans Defined Benefit [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0	0	0
Amortization of loss	(836)	(751)	(1,672)	(1,502)
Total	(836)	(751)	(1,672)	(1,502)
Other Postretirement [Member] | Parent Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	7,738	6,482	15,476	12,964
Amortization of loss	(2,063)	(4,409)	(4,126)	(8,818)
Total	5,675	2,073	11,350	4,146
Other Postretirement [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	1,947	1,867	3,894	3,734
Amortization of loss	(732)	(1,779)	(1,464)	(3,558)
Total	1,215	88	2,430	176
Non-Qualified Pension Plans [Member] | Parent Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	(113)	(108)	(226)	(215)
Amortization of loss	(632)	(552)	(1,262)	(1,104)
Total	(745)	(660)	(1,488)	(1,319)
Non-Qualified Pension Plans [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	(1)	0	(1)
Amortization of loss	(5)	(5)	(6)	(10)
Total	$ (5)	$ (6)	$ (6)	$ (11)