Consolidated Statements Of Changes In Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Treasury Stock [Member]	Paid In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Subsidiaries Preferred Stock and Noncontrolling Interest	Entergy Arkansas [Member]	Entergy Arkansas [Member] Member's Equity [Member]	Entergy Arkansas [Member] Noncontrolling Interest	Entergy Louisiana [Member]	Entergy Louisiana [Member] Member's Equity [Member]	Entergy Louisiana [Member] Accumulated Other Comprehensive Income [Member]	Entergy Louisiana [Member] Noncontrolling Interest	Entergy Mississippi [Member]	Entergy Mississippi [Member] Member's Equity [Member]	Entergy Mississippi [Member] Noncontrolling Interest	Entergy New Orleans [Member]	Entergy Texas [Member]	Entergy Texas [Member] Subsidiaries' Preferred Stock [Member]	Entergy Texas [Member] Common Stock [Member]	Entergy Texas [Member] Paid In Capital [Member]	Entergy Texas [Member] Retained Earnings [Member]	System Energy [Member]	System Energy [Member] Common Stock [Member]	System Energy [Member] Retained Earnings [Member]	Entergy Corporation [Member]
Total common shareholders' equity	$ 10,258,675	$ 2,700	$ (5,154,150)	$ 6,564,436	$ 9,257,609	$ (446,920)	$ 35,000	$ 3,125,937	$ 3,125,937	$ 0	$ 6,397,118	$ 6,392,556	$ 4,562	$ 0	$ 1,542,151	$ 1,542,151	$ 0	$ 497,579	$ 1,799,407	$ 35,000	$ 49,452	$ 780,182	$ 934,773	$ 712,068	$ 601,850	$ 110,218
Consolidated net income	1,406,653	0	0	0		0	18,319	245,232	245,232	0	1,082,352	1,082,352	0	0	140,583	140,583	0	49,338	215,073	0	0	0	215,073	99,131	0	99,131
Net Income (Loss) Attributable to Parent	1,388,334				1,388,334
Proceeds from Contributions from Parent											0							60,000	175,000	0	0	175,000	0	350,000	350,000	0
Other comprehensive income (loss)	(2,287)	0	0	0	0	(2,287)	0				(235)	0	(235)	0
Common stock issuances related to stock plans	65,181	0	79,694	(14,513)	0	0	0
Dividends, Common Stock, Cash	(748,342)	0	0	0	(748,342)	0	0	(95,000)	(95,000)	0	(21,500)	(21,500)	0	0	(10,000)	(10,000)	0		(30,000)	0	0	0	(30,000)	(80,653)	0	(80,653)
Proceeds from Noncontrolling Interests	0							0							0
Other											(47)	(47)	0	0					(20)	0	0	(20)	0
Dividends, Preferred Stock, Cash	(18,319)	0	0	0	0	0	(18,319)												(1,882)	0	0	0	(1,882)				$ (16,000)
Total common shareholders' equity	10,961,142	2,700	(5,074,456)	6,549,923	9,897,182	(449,207)	35,000	3,276,169	3,276,169	0	7,457,688	7,453,361	4,327	0	1,672,734	1,672,734	0	606,917	2,157,578	35,000	49,452	955,162	1,117,964	1,080,546	951,850	128,696
Consolidated net income	1,118,719	0	0	0		0	227	298,484	316,576	(18,092)	653,984	653,984	0	0	166,834	166,834	0	31,798	228,824	0	0	0	228,824	106,814	0	106,814
Net Income (Loss) Attributable to Parent	1,118,492				1,118,492
Proceeds from Contributions from Parent											125,000							0	95,000	0	0	95,000	0	0
Other comprehensive income (loss)	116,679	0	0	0	0	116,679	0				3,951	0	3,951	0
Stock Issued During Period, Value, New Issues	(204,214)	(20)	0	(204,194)	0	0	0												(3,713)	(3,750)	0	37	0
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs	(3,438)	0	0	(3,438)	0	0	0
Common stock issuances related to stock plans	50,317	0	34,757	15,560	0	0	0
Dividends, Common Stock, Cash	(775,122)	0	0	0	(775,122)	0	0	(50,000)	(50,000)	0	(60,000)	(60,000)	0	0										(96,000)	0	(96,000)
Proceeds from Noncontrolling Interests	51,202	0	0	0	0	0	51,202	51,202	0	51,202					0
Other											(51)	(51)	0	0
Dividends, Preferred Stock, Cash	(18,319)	0	0	0	0	0	(18,319)												(1,909)	0	0	0	(1,909)				(16,000)
Total common shareholders' equity	11,705,394	2,720	(5,039,699)	6,766,239	10,240,552	(332,528)	68,110	3,575,855	3,542,745	33,110	8,180,572	8,172,294	8,278	0	1,839,568	1,839,568	0	638,715	2,483,206	38,750	49,452	1,050,125	1,344,879	1,091,360	951,850	139,510
Consolidated net income	1,097,138	0	0	0		0	(6,028)	292,887	297,245	(4,358)	855,870	854,504	0	1,366	176,267	197,622	(21,355)	64,101	303,327	0	0	0	303,327	(276,593)	0	(276,593)
Net Income (Loss) Attributable to Parent	1,103,166				1,103,166
Proceeds from Contributions from Parent											1,000,000	1,000,000	0	0				0	0					135,000	135,000	0
Other comprehensive income (loss)	140,774	0	0	0	0	140,774	0				47,092	0	47,092	0
Noncontrolling Interest, Increase from Subsidiary Equity Issuance	31,636	0	0	0	0	0	31,636				31,636	0	0	31,636
Noncash Capital Contribution from Parent											3,597	3,597	0	0
Stock Issued During Period, Value, New Issues	(861,993)	(77)	0	(861,916)	0	0	0
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs	(9,438)	0	0	(9,438)	0	0	0
Common stock issuances related to stock plans	74,883	0	60,705	14,178	0	0	0
Dividends, Common Stock, Cash	(841,677)	0	0	0	(841,677)	0	0	(86,000)	(86,000)	0	(624,000)	(624,000)	0	0					(105,000)	0	0	0	(105,000)
Proceeds from Noncontrolling Interests	24,702	0	0	0	0	0	24,702	0							24,702	0	24,702
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(2,194)	0	0	0	0	0	(2,194)	(927)	0	(927)	(1,267)	0	0	(1,267)
Other											(52)	(52)	0	0
Dividends, Preferred Stock, Cash	(18,319)	0	0	0	0	0	(18,319)												(2,072)	0	0	0	(2,072)				$ (16,000)
Total common shareholders' equity	$ 13,064,892	$ 2,797	$ (4,978,994)	$ 7,632,895	$ 10,502,041	$ (191,754)	$ 97,907	$ 3,781,815	$ 3,753,990	$ 27,825	$ 9,493,448	$ 9,406,343	$ 55,370	$ 31,735	$ 2,040,537	$ 2,037,190	$ 3,347	$ 702,816	$ 2,679,461	$ 38,750	$ 49,452	$ 1,050,125	$ 1,541,134	$ 949,767	$ 1,086,850	$ (137,083)