Consolidated Statements Of Changes In Equity - USD ($) $ in Thousands	Total	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Common Stock [Member]	Treasury Stock, Common [Member]	Subsidiaries Preferred Stock and Noncontrolling Interests [Member]	Entergy Texas [Member]	Entergy Texas [Member] Additional Paid-in Capital [Member]	Entergy Texas [Member] Retained Earnings [Member]	Entergy Texas [Member] Common Stock [Member]	Entergy Texas [Member] Preferred Stock [Member]	Entergy Mississippi [Member]	Entergy Mississippi [Member] Member's Equity [Member]	Entergy Mississippi [Member] Noncontrolling Interest [Member]	Entergy Arkansas [Member]	Entergy Arkansas [Member] Member's Equity [Member]	Entergy Arkansas [Member] Noncontrolling Interest [Member]	Entergy Louisiana [Member]	Entergy Louisiana [Member] Restoration Law Trust II [Member] Entergy Finance Company [Member]	Entergy Louisiana [Member] Member's Equity [Member]	Entergy Louisiana [Member] AOCI Attributable to Parent [Member]	Entergy Louisiana [Member] Noncontrolling Interest [Member]	Entergy New Orleans [Member]	System Energy [Member]	System Energy [Member] Retained Earnings [Member]	System Energy [Member] Common Stock [Member]	Entergy Corporation [Member]
Equity, Including Portion Attributable to Noncontrolling Interest	$ 13,064,892	$ 7,632,895	$ 10,502,041	$ (191,754)	$ 2,797	$ (4,978,994)	$ 97,907	$ 2,679,461	$ 1,050,125	$ 1,541,134	$ 49,452	$ 38,750	$ 2,040,537	$ 2,037,190	$ 3,347	$ 3,781,815	$ 3,753,990	$ 27,825	$ 9,493,448		$ 9,406,343	$ 55,370	$ 31,735		$ 949,767	$ (137,083)	$ 1,086,850
Members' Equity																								$ 702,816
Dividends, Preferred Stock, Cash	4,580						4,580	518		518																		$ 4,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	312,299		310,935				1,364	41,673		41,673			20,940	23,081	(2,141)	59,397	61,026	(1,629)	244,024		243,470		554	10,142	27,545	27,545
Capital Contribution from Parent																			1,457,676		1,457,676
Common equity distributions													12,500	12,500		80,000	80,000		160,250		160,250
Dividends, Common Stock, Cash	(226,194)		(226,194)
Noncontrolling Interest, Increase from Subsidiary Equity Issuance	14,577						14,577												14,577				14,577
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(574)						(574)									(104)		(104)	(470)				(470)
Other Comprehensive Income (Loss), Net of Tax	2,027			2,027															(786)			(786)
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	(4,481)	15,118				(19,599)
Stockholders' Equity, Other																			(28)		(28)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 1,374,026							280,219					161,942			225,513			866,591					67,544	81,001
Common Stock, Dividends, Per Share, Declared	$ 3.21
Payments of Ordinary Dividends, Preferred Stock and Preference Stock	$ (13,739)							(1,554)
Other Comprehensive Income (Loss), Net of Tax	(3,699)																		(4,388)
Proceeds from Contributions from Parent																0			1,457,676						0
Proceeds from Noncontrolling Interests	25,708												25,708
Equity, Including Portion Attributable to Noncontrolling Interest	13,166,928	7,617,777	10,586,782	(189,727)	2,797	(4,959,395)	108,694	2,720,616	1,050,125	1,582,289	49,452	38,750	2,048,977	2,047,771	1,206	3,761,108	3,735,016	26,092	11,048,191		10,947,211	54,584	46,396		977,312	(109,538)	1,086,850
Members' Equity																								712,958
Dividends, Preferred Stock, Cash	4,580						4,580	518		518																		4,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	392,014		391,244				770	88,457		88,457			58,265	61,888	(3,623)	66,948	67,954	(1,006)	263,260		262,441		819	13,857	25,759	25,759
Common equity distributions													27,500	27,500		9,000	9,000
Dividends, Common Stock, Cash	(226,248)		(226,248)
Capital contribution from noncontrolling interest	25,708						25,708						25,708		25,708
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(113)						(113)									(113)		(113)
Other Comprehensive Income (Loss), Net of Tax	(3,292)			(3,292)															(1,773)			(1,773)
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	(17,128)	(16,528)				(600)
Stockholders' Equity, Other																			15		15
Equity, Including Portion Attributable to Noncontrolling Interest	13,367,545	7,634,305	10,751,778	(193,019)	2,797	(4,958,795)	130,479	2,808,555	1,050,125	1,670,228	49,452	38,750	2,105,450	2,082,159	23,291	3,818,943	3,793,970	24,973	11,309,693		11,209,667	52,811	47,215		1,003,071	(83,779)	1,086,850
Members' Equity																								726,815
Dividends, Preferred Stock, Cash	4,580						4,580	518		518
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	669,714		666,755				2,959	150,089		150,089			82,737	84,377	(1,640)	99,169	99,960	(791)	359,307		358,497		810	43,545	27,697	27,697
Common equity distributions																53,000	53,000		157,750		157,750
Dividends, Common Stock, Cash	(226,257)		(226,257)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	$ (1,318)						(1,318)									(507)		(507)	(811)				(811)
Common Stock, Dividends, Per Share, Declared	$ 1.07
Other Comprehensive Income (Loss), Net of Tax	$ (2,434)			(2,434)															(1,829)			(1,829)
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	(16,338)	(15,065)				(1,273)
Stockholders' Equity, Other																			(12)		(12)
Equity, Including Portion Attributable to Noncontrolling Interest	13,819,008	7,649,370	11,192,276	(195,453)	2,797	(4,957,522)	127,540	2,958,126	1,050,125	1,819,799	49,452	38,750	2,188,187	2,166,536	21,651	3,864,605	3,840,930	23,675	11,508,598		11,410,402	50,982	47,214		1,030,768	(56,082)	1,086,850
Members' Equity																								770,360
Equity, Including Portion Attributable to Noncontrolling Interest	14,743,106	7,795,411	11,940,384	(162,460)	2,810	(4,953,498)	120,459	3,118,662	1,200,125	1,830,335	49,452	38,750	2,208,214	2,189,461	18,753	3,760,670	3,739,071	21,599	11,573,519		11,473,614	54,798	45,107	806,754	888,539	(28,311)	916,850
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value																				$ 1,500,000
Members' Equity													2,189,461			3,739,071			11,473,614					806,754
Dividends, Preferred Stock, Cash	4,580						4,580	518		518																		4,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	76,536		75,281				1,255	36,744		36,744			27,432	29,734	(2,302)	(32,280)	(30,462)	(1,818)	182,723		181,928		795	(48,980)	31,118	31,118
Capital Contribution from Parent																275,000	275,000								150,000		150,000
Common equity distributions																			97,500		97,500
Dividends, Common Stock, Cash	(240,959)		(240,959)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(1,108)						(1,108)									(250)		(250)	(858)				(858)
Other Comprehensive Income (Loss), Net of Tax	(3,668)			(3,668)															(2,024)			(2,024)
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	(5,039)	25,842				(30,881)
Stockholders' Equity, Other																			(43)		(43)
Noncash Capital Contribution from Parent																			976		976
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 774,022							245,277					195,380			248,849			663,632					11,285	82,043
Common Stock, Dividends, Per Share, Declared	$ 3.39
Payments of Ordinary Dividends, Preferred Stock and Preference Stock	$ (13,739)							(1,554)
Other Comprehensive Income (Loss), Net of Tax	238,645																		(6,071)
Proceeds from Contributions from Parent																695,000			0						150,000
Proceeds from Noncontrolling Interests	0												0
Equity, Including Portion Attributable to Noncontrolling Interest	14,574,366	7,769,569	11,774,706	(166,128)	2,810	(4,922,617)	116,026	3,154,888	1,200,125	1,866,561	49,452	38,750	2,235,646	2,219,195	16,451	4,003,140	3,983,609	19,531	11,656,793		11,558,975	52,774	45,044		1,069,657	2,807	1,066,850
Members' Equity																								757,774
Dividends, Preferred Stock, Cash	4,580						4,580	518		518																		$ 4,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	51,732		48,922				2,810	90,222		90,222			79,565	81,298	(1,733)	95,359	96,184	(825)	131,114		130,326		788	21,133	24,848	24,848
Capital Contribution from Parent																420,000	420,000
Common equity distributions													22,300	22,300					566,600		566,600
Dividends, Common Stock, Cash	(241,296)		(241,296)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(330)						(330)									(31)		(31)	(299)				(299)
Other Comprehensive Income (Loss), Net of Tax	246,489			246,489															(2,023)			(2,023)
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	(55,274)	(16,352)				(38,922)
Stockholders' Equity, Other																			(40)		(40)
Equity, Including Portion Attributable to Noncontrolling Interest	14,681,655	7,785,921	11,582,332	80,361	2,810	(4,883,695)	113,926	3,244,592	1,200,125	1,956,265	49,452	38,750	2,292,911	2,278,193	14,718	4,518,468	4,499,793	18,675	11,218,945		11,122,661	50,751	45,533		1,094,505	27,655	1,066,850
Members' Equity																								778,907
Dividends, Preferred Stock, Cash	4,580						4,580	518		518
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	645,754		644,940				814	118,311		118,311			88,383	91,967	(3,584)	185,770	186,727	(957)	349,795		349,020		775	39,132	26,077	26,077
Common equity distributions													22,333	22,333
Dividends, Common Stock, Cash	(241,720)		(241,720)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	$ (1,291)						(1,291)									(449)		(449)	(842)				(842)
Common Stock, Dividends, Per Share, Declared	$ 1.13
Other Comprehensive Income (Loss), Net of Tax	$ (4,176)			(4,176)															(2,024)			(2,024)
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	(66,069)	(22,485)				(43,584)
Stockholders' Equity, Other																			(11)		(11)
Equity, Including Portion Attributable to Noncontrolling Interest	$ 15,141,711	$ 7,808,406	$ 11,985,552	$ 76,185	$ 2,810	$ (4,840,111)	$ 108,869	$ 3,362,385	$ 1,200,125	$ 2,074,058	$ 49,452	$ 38,750	2,358,961	$ 2,347,827	$ 11,134	4,703,789	$ 4,686,520	$ 17,269	11,565,863		$ 11,471,670	$ 48,727	$ 45,466	818,039	$ 1,120,582	$ 53,732	$ 1,066,850
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value																				$ 1,400,000
Members' Equity													$ 2,347,827			$ 4,686,520			$ 11,471,670					$ 818,039