Rate And Regulatory Matters (Correction Of Regulatory Asset For Income Taxes, Income Statement And Statement Of Cash Flows) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Consolidated Statements Of Income [Abstract]
Income taxes (benefit)	$ 225,981,000		$ 30,855,000		$ 286,263,000
Net income	730,572,000	[1]	868,363,000	[1]	1,367,372,000	[1]
Earnings applicable to common equity	711,902,000		846,673,000		1,346,439,000
Consolidated Statements Of Cash Flows [Abstract]
Deferred income taxes, investment tax credits, and non-current taxes accrued	311,789,000		(26,479,000)		(280,029,000)
Changes in other regulatory assets	1,105,622,000		(398,428,000)		(673,244,000)
Other operating activities	314,505,000		(192,131,000)		(604,852,000)
Entergy Arkansas [Member]
Consolidated Statements Of Income [Abstract]
Income taxes (benefit)	91,787,000		94,806,000		132,765,000
Net income	161,948,000		152,365,000		164,891,000
Earnings applicable to common equity	155,075,000		145,492,000		158,018,000
Consolidated Statements Of Cash Flows [Abstract]
Deferred income taxes, investment tax credits, and non-current taxes accrued	130,707,000		(67,482,000)		94,410,000
Changes in other regulatory assets	214,131,000		(88,119,000)		(215,841,000)
Other operating activities	(72,184,000)		(57,035,000)		(52,459,000)
Entergy Gulf States Louisiana [Member]
Consolidated Statements Of Income [Abstract]
Income taxes (benefit)	56,819,000		52,616,000		89,736,000
Net income	161,662,000		158,977,000		201,604,000
Earnings applicable to common equity	160,837,000		158,152,000		200,779,000
Consolidated Statements Of Cash Flows [Abstract]
Deferred income taxes, investment tax credits, and non-current taxes accrued	86,125,000		92,523,000		(4,845,000)
Changes in other regulatory assets	123,254,000		(73,082,000)		(77,713,000)
Other operating activities	136,112,000		(21,232,000)		(37,562,000)
Entergy Louisiana [Member]
Consolidated Statements Of Income [Abstract]
Income taxes (benefit)	81,877,000		(128,922,000)		(370,211,000)
Net income	252,464,000		281,081,000		473,923,000
Earnings applicable to common equity	245,514,000		274,131,000		466,973,000
Consolidated Statements Of Cash Flows [Abstract]
Deferred income taxes, investment tax credits, and non-current taxes accrued	310,964,000		(59,069,000)		(327,046,000)
Changes in other regulatory assets	111,049,000		(116,249,000)		(95,909,000)
Other operating activities	86,960,000		30,610,000		(221,406,000)
Entergy Mississippi [Member]
Consolidated Statements Of Income [Abstract]
Income taxes (benefit)	49,757,000		58,679,000		28,801,000
Net income	82,159,000		46,768,000		108,729,000
Earnings applicable to common equity	79,331,000		43,940,000		105,901,000
Consolidated Statements Of Cash Flows [Abstract]
Deferred income taxes, investment tax credits, and non-current taxes accrued	47,878,000		58,221,000		(3,443,000)
Changes in other regulatory assets	87,907,000		(6,501,000)		(83,399,000)
Other operating activities	1,647,000		5,336,000		(21,733,000)
Entergy New Orleans [Member]
Consolidated Statements Of Income [Abstract]
Income taxes (benefit)	1,619,000		7,240,000		15,862,000
Net income	11,683,000		17,065,000		35,976,000
Earnings applicable to common equity	10,718,000		16,100,000		35,011,000
Consolidated Statements Of Cash Flows [Abstract]
Deferred income taxes, investment tax credits, and non-current taxes accrued	(7,427,000)		15,016,000		(35,276,000)
Changes in other regulatory assets	64,810,000		(23,188,000)		(42,667,000)
Other operating activities	7,889,000		16,120,000		5,474,000
Entergy Texas [Member]
Consolidated Statements Of Income [Abstract]
Income taxes (benefit)	30,108,000		33,118,000		49,492,000
Net income	57,881,000		41,971,000		80,845,000
Consolidated Statements Of Cash Flows [Abstract]
Deferred income taxes, investment tax credits, and non-current taxes accrued	86,152,000		123,167,000		56,219,000
Changes in other regulatory assets	197,520,000		62,166,000		(15,611,000)
Other operating activities	7,033,000		10,096,000		(16,105,000)
System Energy [Member]
Consolidated Statements Of Income [Abstract]
Income taxes (benefit)	68,853,000		77,115,000		74,953,000
Net income	113,664,000		111,866,000		64,197,000
Consolidated Statements Of Cash Flows [Abstract]
Deferred income taxes, investment tax credits, and non-current taxes accrued	29,996,000		43,651,000		14,923,000
Changes in other regulatory assets	79,345,000		(44,004,000)		10,874,000
Other operating activities	$ (1,870,000)		$ 20,828,000		$ (68,714,000)

[1] Consolidated net income and preferred dividend requirements of subsidiaries for 2013, 2012, and 2011 include $12.0 million, $15.0 million, and $13.3 million, respectively, of preferred dividends on subsidiaries’ preferred stock without sinking fund that is not presented as equity.