Retirement And Other Postretirement Benefits (Reclassification Out Of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Defined Benefit Plan Disclosure [Line Items]
Total
Parent Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	$ 7,354	5,985	$ 22,064	$ 17,956
Amortization of loss	(15,183)	(17,588)	(45,535)	(52,764)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	(1,279)		(1,279)
Total	(9,108)	(11,603)	(24,750)	(34,808)
Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	1,947	1,866	5,841	5,599
Amortization of loss	(1,570)	(2,536)	(4,712)	(7,606)
Total	377	(670)	1,129	(2,007)
Pension Plans Defined Benefit [Member] | Parent Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	(270)	(389)	(810)	(1,167)
Amortization of loss	(12,482)	(12,627)	(37,446)	(37,881)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	0		0
Total	(12,752)	(13,016)	(38,256)	(39,048)
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)	(2,508)	(2,253)
Total	(836)	(751)	(2,508)	(2,253)
Other Postretirement [Member] | Parent Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	7,738	6,482	23,214	19,446
Amortization of loss	(2,063)	(4,409)	(6,189)	(13,227)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	0		0
Total	5,675	2,073	17,025	6,219
Other Postretirement [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	1,947	1,867	5,841	5,601
Amortization of loss	(732)	(1,780)	(2,196)	(5,338)
Total	1,215	87	3,645	263
Non-Qualified Pension Plans [Member] | Parent Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	(114)	(108)	(340)	(323)
Amortization of loss	(638)	(552)	(1,900)	(1,656)
Recognized Net Gain (Loss) Due To Settlements, Pre Tax	(1,279)		(1,279)
Total	(2,031)	(660)	(3,519)	(1,979)
Non-Qualified Pension Plans [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	(1)	0	(2)
Amortization of loss	(2)	(5)	(8)	(15)
Total	$ (2)	$ (6)	$ (8)	$ (17)