Retirement, Other Postretirement Benefits, And Defined Contribution Plans (Estimated Future Benefit Payments) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, 2013	$ 5,372
Estimated Future Medicare Subsidy Receipts, 2014	426
Estimated Future Medicare Subsidy Receipts, 2015	478
Estimated Future Medicare Subsidy Receipts, 2016	536
Estimated Future Medicare Subsidy Receipts, 2017	1,769
Estimated Future Medicare Subsidy Receipts, 2018 - 2022	11,725
Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	232,876
Estimated Future Benefits Payments, 2014	246,217
Estimated Future Benefits Payments, 2015	261,255
Estimated Future Benefits Payments, 2016	276,451
Estimated Future Benefits Payments, 2017	293,163
Estimated Future Benefits Payments, 2018 - 2022	1,773,632
Non-Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	26,817
Estimated Future Benefits Payments, 2014	11,687
Estimated Future Benefits Payments, 2015	10,242
Estimated Future Benefits Payments, 2016	10,522
Estimated Future Benefits Payments, 2017	13,421
Estimated Future Benefits Payments, 2018 - 2022	66,317
Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	84,038
Estimated Future Benefits Payments, 2014	79,244
Estimated Future Benefits Payments, 2015	80,842
Estimated Future Benefits Payments, 2016	82,974
Estimated Future Benefits Payments, 2017	87,575
Estimated Future Benefits Payments, 2018 - 2022	485,409
Entergy Arkansas [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, 2013	1,241
Estimated Future Medicare Subsidy Receipts, 2014	68
Estimated Future Medicare Subsidy Receipts, 2015	74
Estimated Future Medicare Subsidy Receipts, 2016	81
Estimated Future Medicare Subsidy Receipts, 2017	354
Estimated Future Medicare Subsidy Receipts, 2018 - 2022	2,252
Entergy Arkansas [Member] | Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	60,456
Estimated Future Benefits Payments, 2014	61,587
Estimated Future Benefits Payments, 2015	63,083
Estimated Future Benefits Payments, 2016	64,418
Estimated Future Benefits Payments, 2017	66,281
Estimated Future Benefits Payments, 2018 - 2022	375,976
Entergy Arkansas [Member] | Non-Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	367
Estimated Future Benefits Payments, 2014	345
Estimated Future Benefits Payments, 2015	299
Estimated Future Benefits Payments, 2016	299
Estimated Future Benefits Payments, 2017	279
Estimated Future Benefits Payments, 2018 - 2022	1,916
Entergy Arkansas [Member] | Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	17,122
Estimated Future Benefits Payments, 2014	15,513
Estimated Future Benefits Payments, 2015	15,523
Estimated Future Benefits Payments, 2016	15,554
Estimated Future Benefits Payments, 2017	15,987
Estimated Future Benefits Payments, 2018 - 2022	82,455
Entergy Gulf States Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, 2013	582
Estimated Future Medicare Subsidy Receipts, 2014	32
Estimated Future Medicare Subsidy Receipts, 2015	35
Estimated Future Medicare Subsidy Receipts, 2016	38
Estimated Future Medicare Subsidy Receipts, 2017	165
Estimated Future Medicare Subsidy Receipts, 2018 - 2022	1,061
Entergy Gulf States Louisiana [Member] | Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	23,039
Estimated Future Benefits Payments, 2014	24,260
Estimated Future Benefits Payments, 2015	25,556
Estimated Future Benefits Payments, 2016	27,111
Estimated Future Benefits Payments, 2017	28,962
Estimated Future Benefits Payments, 2018 - 2022	177,010
Entergy Gulf States Louisiana [Member] | Non-Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	262
Estimated Future Benefits Payments, 2014	240
Estimated Future Benefits Payments, 2015	233
Estimated Future Benefits Payments, 2016	279
Estimated Future Benefits Payments, 2017	212
Estimated Future Benefits Payments, 2018 - 2022	932
Entergy Gulf States Louisiana [Member] | Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	9,385
Estimated Future Benefits Payments, 2014	8,899
Estimated Future Benefits Payments, 2015	9,137
Estimated Future Benefits Payments, 2016	9,403
Estimated Future Benefits Payments, 2017	9,912
Estimated Future Benefits Payments, 2018 - 2022	55,934
Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, 2013	718
Estimated Future Medicare Subsidy Receipts, 2014	39
Estimated Future Medicare Subsidy Receipts, 2015	43
Estimated Future Medicare Subsidy Receipts, 2016	46
Estimated Future Medicare Subsidy Receipts, 2017	199
Estimated Future Medicare Subsidy Receipts, 2018 - 2022	1,235
Entergy Louisiana [Member] | Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	34,740
Estimated Future Benefits Payments, 2014	35,623
Estimated Future Benefits Payments, 2015	36,833
Estimated Future Benefits Payments, 2016	38,247
Estimated Future Benefits Payments, 2017	39,914
Estimated Future Benefits Payments, 2018 - 2022	229,821
Entergy Louisiana [Member] | Non-Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	6
Estimated Future Benefits Payments, 2014	6
Estimated Future Benefits Payments, 2015	6
Estimated Future Benefits Payments, 2016	6
Estimated Future Benefits Payments, 2017	5
Estimated Future Benefits Payments, 2018 - 2022	21
Entergy Louisiana [Member] | Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	10,967
Estimated Future Benefits Payments, 2014	10,049
Estimated Future Benefits Payments, 2015	10,162
Estimated Future Benefits Payments, 2016	10,289
Estimated Future Benefits Payments, 2017	10,796
Estimated Future Benefits Payments, 2018 - 2022	59,068
Entergy Mississippi [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, 2013	462
Estimated Future Medicare Subsidy Receipts, 2014	25
Estimated Future Medicare Subsidy Receipts, 2015	27
Estimated Future Medicare Subsidy Receipts, 2016	29
Estimated Future Medicare Subsidy Receipts, 2017	123
Estimated Future Medicare Subsidy Receipts, 2018 - 2022	742
Entergy Mississippi [Member] | Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	16,920
Estimated Future Benefits Payments, 2014	17,669
Estimated Future Benefits Payments, 2015	18,515
Estimated Future Benefits Payments, 2016	19,298
Estimated Future Benefits Payments, 2017	20,237
Estimated Future Benefits Payments, 2018 - 2022	114,462
Entergy Mississippi [Member] | Non-Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	119
Estimated Future Benefits Payments, 2014	115
Estimated Future Benefits Payments, 2015	108
Estimated Future Benefits Payments, 2016	105
Estimated Future Benefits Payments, 2017	99
Estimated Future Benefits Payments, 2018 - 2022	648
Entergy Mississippi [Member] | Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	4,814
Estimated Future Benefits Payments, 2014	4,267
Estimated Future Benefits Payments, 2015	4,340
Estimated Future Benefits Payments, 2016	4,447
Estimated Future Benefits Payments, 2017	4,767
Estimated Future Benefits Payments, 2018 - 2022	25,819
Entergy New Orleans [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, 2013	387
Estimated Future Medicare Subsidy Receipts, 2014	20
Estimated Future Medicare Subsidy Receipts, 2015	20
Estimated Future Medicare Subsidy Receipts, 2016	21
Estimated Future Medicare Subsidy Receipts, 2017	85
Estimated Future Medicare Subsidy Receipts, 2018 - 2022	455
Entergy New Orleans [Member] | Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	6,615
Estimated Future Benefits Payments, 2014	7,008
Estimated Future Benefits Payments, 2015	7,437
Estimated Future Benefits Payments, 2016	7,941
Estimated Future Benefits Payments, 2017	8,582
Estimated Future Benefits Payments, 2018 - 2022	51,610
Entergy New Orleans [Member] | Non-Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	20
Estimated Future Benefits Payments, 2014	20
Estimated Future Benefits Payments, 2015	20
Estimated Future Benefits Payments, 2016	20
Estimated Future Benefits Payments, 2017	19
Estimated Future Benefits Payments, 2018 - 2022	223
Entergy New Orleans [Member] | Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	5,044
Estimated Future Benefits Payments, 2014	4,475
Estimated Future Benefits Payments, 2015	4,448
Estimated Future Benefits Payments, 2016	4,423
Estimated Future Benefits Payments, 2017	4,502
Estimated Future Benefits Payments, 2018 - 2022	21,707
Entergy Texas [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, 2013	563
Estimated Future Medicare Subsidy Receipts, 2014	30
Estimated Future Medicare Subsidy Receipts, 2015	32
Estimated Future Medicare Subsidy Receipts, 2016	34
Estimated Future Medicare Subsidy Receipts, 2017	141
Estimated Future Medicare Subsidy Receipts, 2018 - 2022	816
Entergy Texas [Member] | Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	18,583
Estimated Future Benefits Payments, 2014	19,137
Estimated Future Benefits Payments, 2015	19,744
Estimated Future Benefits Payments, 2016	20,402
Estimated Future Benefits Payments, 2017	21,140
Estimated Future Benefits Payments, 2018 - 2022	118,750
Entergy Texas [Member] | Non-Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	786
Estimated Future Benefits Payments, 2014	701
Estimated Future Benefits Payments, 2015	775
Estimated Future Benefits Payments, 2016	690
Estimated Future Benefits Payments, 2017	657
Estimated Future Benefits Payments, 2018 - 2022	2,951
Entergy Texas [Member] | Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	7,540
Estimated Future Benefits Payments, 2014	6,818
Estimated Future Benefits Payments, 2015	6,934
Estimated Future Benefits Payments, 2016	7,079
Estimated Future Benefits Payments, 2017	7,471
Estimated Future Benefits Payments, 2018 - 2022	40,067
System Energy [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, 2013	130
Estimated Future Medicare Subsidy Receipts, 2014	8
Estimated Future Medicare Subsidy Receipts, 2015	9
Estimated Future Medicare Subsidy Receipts, 2016	10
Estimated Future Medicare Subsidy Receipts, 2017	51
Estimated Future Medicare Subsidy Receipts, 2018 - 2022	379
System Energy [Member] | Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	10,523
Estimated Future Benefits Payments, 2014	10,883
Estimated Future Benefits Payments, 2015	11,463
Estimated Future Benefits Payments, 2016	11,851
Estimated Future Benefits Payments, 2017	12,615
Estimated Future Benefits Payments, 2018 - 2022	77,880
System Energy [Member] | Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, 2013	2,858
Estimated Future Benefits Payments, 2014	2,783
Estimated Future Benefits Payments, 2015	2,786
Estimated Future Benefits Payments, 2016	2,875
Estimated Future Benefits Payments, 2017	2,984
Estimated Future Benefits Payments, 2018 - 2022	$ 16,928