Income Taxes (Schedule Of Statutory Income Tax Rate To Income Before Taxes) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Net income (loss) attributable to Entergy Corporation	$ 120,127	$ 230,037	$ 189,383	$ 401,174	$ 146,929	$ 239,850	$ 163,723	$ 161,400	$ 940,721		$ 711,902		$ 846,673
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable									19,536		18,670		21,690
Consolidated net income	125,006	234,916	194,281	406,053	151,353	244,182	168,055	166,982	960,257	[1]	730,572	[1]	868,363	[1]
Income taxes (benefit)									589,597		225,981		30,855
Income before income taxes									1,549,854		956,553		899,218
Computed at statutory rate (35%)									542,449		334,794		314,726
State income taxes net of federal income tax effect									44,708		13,599		40,699
Regulatory differences - utility plant items									39,321		32,324		35,527
Equity component of AFUDC									(21,108)		(22,356)		(30,838)
Amortization of investment tax credits									(12,211)		(13,535)		(14,000)
Net-of-tax regulatory liability									0		(2,899)		(4,356)
Deferred tax reversal on PPA settlement									(21,500)		0		0
IRS decommissioning settlement									0	[2]	0	[2]	(155,300)	[2]
Write-Off Of Regulatory Asset For Income Taxes									0		0		42,159
Capital gains / (losses)									0		0		(20,188)
Flow-through / permanent differences									(18,003)		(301)		(14,801)
Benefit of Entergy Corporation expenses									0		(27,192)		0
Provision for uncertain tax positions									32,573	[3]	(59,249)	[3]	(159,957)	[3]
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount									0		(31,573)
Other - net									3,368		2,369		(2,816)
Total income taxes as reported									589,597		225,981		30,855
Effective Income Tax Rate									38.00%		23.60%		3.40%
Parent Company [Member]
Net income (loss) attributable to Entergy Corporation									940,700		711,900		846,700
Entergy Arkansas [Member]
Net income (loss) attributable to Entergy Corporation									114,519		155,075		145,492
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable									6,873		6,873		6,873
Consolidated net income	1,037	62,980	29,005	28,370	24,169	82,577	40,483	14,719	121,392		161,948		152,365
Income taxes (benefit)									83,629		91,787		94,806
Income before income taxes									205,021		253,735		247,171
Computed at statutory rate (35%)									71,757		88,807		86,510
State income taxes net of federal income tax effect									9,591		10,954		11,282
Regulatory differences - utility plant items									8,653		7,938		6,778
Equity component of AFUDC									(2,533)		(3,820)		(2,495)
Amortization of investment tax credits									(1,251)		(1,989)		(1,992)
Net-of-tax regulatory liability											0	[4]
Flow-through / permanent differences									(5,082)		2,540		3,427
Non-taxable dividend income									0		0
Benefit of Entergy Corporation expenses											(6,753)		(19,403)
Provision for uncertain tax positions									1,881		(6,527)		11,227
Change in regulatory recovery													0
Other - net									613		637		(528)
Total income taxes as reported									83,629		91,787		94,806
Effective Income Tax Rate									40.80%		36.20%		38.40%
Entergy Gulf States Louisiana [Member]
Net income (loss) attributable to Entergy Corporation									161,664		160,837		158,152
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable									827		825		825
Consolidated net income	24,313	55,535	36,171	46,472	42,135	62,642	29,720	27,165	162,491		161,662		158,977
Income taxes (benefit)									88,782		56,819		52,616
Income before income taxes									251,273		218,481		211,593
Computed at statutory rate (35%)									87,946		76,468		74,058
State income taxes net of federal income tax effect									6,532		7,719		5,087
Regulatory differences - utility plant items									4,618		4,865		8,472
Equity component of AFUDC									(2,602)		(2,822)		(3,042)
Amortization of investment tax credits									(3,018)		(3,018)		(3,204)
Net-of-tax regulatory liability											0	[4]
Flow-through / permanent differences									799		2,377		(7,646)
Non-taxable dividend income									(10,590)		(9,612)		(9,836)
Benefit of Entergy Corporation expenses											(3,619)		(17,703)
Provision for uncertain tax positions									4,108		(15,557)		8,745
Change in regulatory recovery													(553)
Other - net									989		18		(1,762)
Total income taxes as reported									88,782		56,819		52,616
Effective Income Tax Rate									35.30%		26.00%		24.90%
Entergy Louisiana [Member]
Net income (loss) attributable to Entergy Corporation									276,562		245,514		274,131
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable									6,969		6,950		6,950
Consolidated net income	31,665	123,821	69,667	58,378	45,114	100,597	61,377	45,376	283,531		252,464		281,081
Income taxes (benefit)									96,270		81,877		(128,922)
Income before income taxes									379,801		334,341		152,159
Computed at statutory rate (35%)									132,930		117,019		53,256
State income taxes net of federal income tax effect									5,134		11,365		1,976
Regulatory differences - utility plant items									2,869		2,140		312
Equity component of AFUDC									(12,010)		(10,278)		(12,919)
Amortization of investment tax credits									(2,576)		(2,846)		(3,089)
Net-of-tax regulatory liability											(2,899)	[4]	(4,356)	[5]
Flow-through / permanent differences									(1,024)		1,269		1,397
Non-taxable dividend income									(30,665)		(27,341)		(27,336)
Benefit of Entergy Corporation expenses											(3,834)		0
Provision for uncertain tax positions									1,228		(3,088)		(143,583)
Change in regulatory recovery													7,854
Other - net									384		370		(2,434)
Total income taxes as reported									96,270		81,877		(128,922)
Effective Income Tax Rate									25.30%		24.50%		(84.70%)
Entergy Mississippi [Member]
Net income (loss) attributable to Entergy Corporation									71,993		79,331		43,940
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable									2,828		2,828		2,828
Consolidated net income	28,882	(6,464)	26,564	25,839	15,458	33,813	18,954	13,934	74,821		82,159		46,768
Income taxes (benefit)									55,710		49,757		58,679
Income before income taxes									130,531		131,916		105,447
Computed at statutory rate (35%)									45,686		46,171		36,906
State income taxes net of federal income tax effect									5,180		4,564		3,944
Regulatory differences - utility plant items									4,448		2,603		2,619
Equity component of AFUDC									(833)		(764)		(1,383)
Amortization of investment tax credits									(260)		(260)		(264)
Net-of-tax regulatory liability											0	[4]
Flow-through / permanent differences									555		1,702		1,961
Non-taxable dividend income									0		0
Benefit of Entergy Corporation expenses											(4,177)		14,449
Provision for uncertain tax positions									718		(326)		870
Change in regulatory recovery													0
Other - net									216		244		(423)
Total income taxes as reported									55,710		49,757		58,679
Effective Income Tax Rate									42.70%		37.70%		55.60%
Entergy New Orleans [Member]
Net income (loss) attributable to Entergy Corporation									27,742		10,718		16,100
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable									965		965		965
Consolidated net income	107	13,932	6,374	8,294	1,692	8,086	598	1,307	28,707		11,683		17,065
Income taxes (benefit)									12,324		1,619		7,240
Income before income taxes									41,031		13,302		24,305
Computed at statutory rate (35%)									14,361		4,656		8,507
State income taxes net of federal income tax effect									1,643		1,012		505
Regulatory differences - utility plant items									777		453		2,289
Equity component of AFUDC									(320)		(322)		(276)
Amortization of investment tax credits									(218)		(216)		(240)
Net-of-tax regulatory liability											0	[4]
Flow-through / permanent differences									(4,458)		(4,402)		(4,385)
Non-taxable dividend income									0		0
Benefit of Entergy Corporation expenses											(501)		2,758
Provision for uncertain tax positions									405		795		(2,095)
Change in regulatory recovery													0
Other - net									134		144		177
Total income taxes as reported									12,324		1,619		7,240
Effective Income Tax Rate									30.00%		12.20%		29.80%
Entergy Texas [Member]
Consolidated net income	3,495	39,559	18,585	13,165	10,205	35,801	10,953	922	74,804		57,881		41,971
Income taxes (benefit)									49,644		30,108		33,118
Income before income taxes									124,448		87,989		75,089
Computed at statutory rate (35%)									43,557		30,796		26,281
State income taxes net of federal income tax effect									3,221		(897)		3,115
Regulatory differences - utility plant items									4,165		3,256		3,668
Equity component of AFUDC									(1,035)		(1,626)		(1,587)
Amortization of investment tax credits									(1,412)		(1,596)		(1,596)
Net-of-tax regulatory liability											0	[4]
Flow-through / permanent differences									393		2,467		1,585
Non-taxable dividend income									0		0
Benefit of Entergy Corporation expenses											(3,542)		0
Provision for uncertain tax positions									522		1,027		1,651
Change in regulatory recovery													0
Other - net									233		223		1
Total income taxes as reported									49,644		30,108		33,118
Effective Income Tax Rate									39.90%		34.20%		44.10%
System Energy [Member]
Consolidated net income	19,054	26,730	25,931	24,619	22,819	35,105	27,734	28,006	96,334		113,664		111,866
Income taxes (benefit)									83,310		68,853		77,115
Income before income taxes									179,644		182,517		188,981
Computed at statutory rate (35%)									62,875		63,881		66,143
State income taxes net of federal income tax effect									6,877		5,900		6,652
Regulatory differences - utility plant items									13,791		11,070		11,389
Equity component of AFUDC									(1,774)		(2,724)		(9,136)
Amortization of investment tax credits									(3,476)		(3,476)		(3,480)
Net-of-tax regulatory liability											0	[4]
Flow-through / permanent differences									(327)		(491)		(357)
Non-taxable dividend income									0		0
Benefit of Entergy Corporation expenses											(13)		(10,241)
Provision for uncertain tax positions									5,235		(5,353)		17,966
Change in regulatory recovery													0
Other - net									109		59		(1,821)
Total income taxes as reported									$ 83,310		$ 68,853		$ 77,115
Effective Income Tax Rate									46.40%		37.70%		40.80%

[1] Consolidated net income and preferred dividend requirements of subsidiaries for 2014, 2013, and 2012 include $12.9 million, $12 million, and $15 million, respectively, of preferred dividends on subsidiaries’ preferred stock without sinking fund that is not presented as equity.

[2] See “Income Tax Audits - 2004-2005 IRS Audit” below for discussion of this item.

[3] See “Income Tax Audits - 2008-2009 IRS Audit” below for discussion of the most significant items in 2013 and 2012.

[4] 2012 Entergy Arkansas EntergyGulf StatesLouisiana Entergy Louisiana Entergy Mississippi Entergy New Orleans Entergy Texas System Energy (In Thousands)Net income $152,365 $158,977 $281,081 $46,768 $17,065 $41,971 $111,866Income taxes (benefit) 94,806 52,616 (128,922) 58,679 7,240 33,118 77,115Pretax income $247,171 $211,593 $152,159 $105,447 $24,305 $75,089 $188,981Computed at statutory rate (35%) $86,510 $74,058 $53,256 $36,906 $8,507 $26,281 $66,143Increases (reductions) resulting from: State income taxes net of federal income tax effect 11,282 5,087 1,976 3,944 505 3,115 6,652Regulatory differences - utility plant items 6,778 8,472 312 2,619 2,289 3,668 11,389Equity component of AFUDC (2,495) (3,042) (12,919) (1,383) (276) (1,587) (9,136)Amortization of investment tax credits (1,992) (3,204) (3,089) (264) (240) (1,596) (3,480)Net-of-tax regulatory liability — — (4,356) — — — —Flow-through / permanent differences 3,427 (7,646) 1,397 1,961 (4,385) 1,585 (357)Non-taxable dividend income — (9,836) (27,336) — — — —Expense (benefit) of Entergy Corporation expenses (19,403) (17,703) — 14,449 2,758 — (10,241)Provision for uncertain tax positions 11,227 8,745 (143,583) 870 (2,095) 1,651 17,966Change in regulatory recovery — (553) 7,854 — — — —Other - net (528) (1,762) (2,434) (423) 177 1 (1,821)Total income taxes $94,806 $52,616 ($128,922) $58,679 $7,240 $33,118 $77,115Effective Income Tax Rate 38.4% 24.9% (84.7%) 55.6% 29.8% 44.1% 40.8%

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