Retirement And Other Postretirement Benefits (Components Of Qualified Net Pension Cost) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Pension Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	$ 35,109,000	$ 44,051,000	$ 70,218,000	$ 88,102,000
Interest cost on projected benefit obligation	72,519,000	65,266,000	145,038,000	130,532,000
Expected return on assets	(90,366,000)	(81,748,000)	(180,732,000)	(163,496,000)
Amortization of prior service cost (credit)	400,000	567,000	800,000	1,134,000
Amortization of loss	36,274,000	54,951,000	72,548,000	109,902,000
Net other postretirement benefit cost	53,936,000	83,087,000	107,872,000	166,174,000
Pension Plans Defined Benefit [Member] | Entergy Arkansas [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	5,023,000	6,371,000	10,046,000	12,742,000
Interest cost on projected benefit obligation	14,884,000	13,550,000	29,768,000	27,100,000
Expected return on assets	(18,305,000)	(16,717,000)	(36,610,000)	(33,434,000)
Amortization of prior service cost (credit)		6,000		12,000
Amortization of loss	8,989,000	12,543,000	17,978,000	25,087,000
Net other postretirement benefit cost	10,591,000	15,753,000	21,182,000	31,507,000
Pension Plans Defined Benefit [Member] | Entergy Gulf States Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	2,881,000	3,599,000	5,762,000	7,198,000
Interest cost on projected benefit obligation	7,278,000	6,657,000	14,556,000	13,314,000
Expected return on assets	(9,488,000)	(8,734,000)	(18,976,000)	(17,468,000)
Amortization of prior service cost (credit)		2,000		4,000
Amortization of loss	3,981,000	5,934,000	7,962,000	11,867,000
Net other postretirement benefit cost	4,652,000	7,458,000	9,304,000	14,915,000
Pension Plans Defined Benefit [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	3,546,000.000	4,334,000	7,092,000	8,668,000
Interest cost on projected benefit obligation	9,467,000.000	8,644,000	18,934,000	17,288,000
Expected return on assets	(11,449,000.000)	(10,454,000)	(22,898,000)	(20,908,000)
Amortization of prior service cost (credit)		21,000		42,000
Amortization of loss	6,131,000.000	8,727,000	12,262,000	17,454,000
Net other postretirement benefit cost	7,695,000.000	11,272,000	15,390,000	22,544,000
Pension Plans Defined Benefit [Member] | Entergy Mississippi [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	1,523,000.000	1,842,000	3,046,000	3,684,000
Interest cost on projected benefit obligation	4,318,000.000	3,930,000	8,636,000	7,860,000
Expected return on assets	(5,698,000.000)	(5,279,000)	(11,396,000)	(10,558,000)
Amortization of prior service cost (credit)		2,000		4,000
Amortization of loss	2,354,000.000	3,344,000	4,708,000	6,688,000
Net other postretirement benefit cost	2,497,000.000	3,839,000	4,994,000	7,678,000
Pension Plans Defined Benefit [Member] | Entergy New Orleans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	666,000.000	832,000	1,332,000	1,664,000
Interest cost on projected benefit obligation	2,041,000.000	1,849,000	4,082,000	3,698,000
Expected return on assets	(2,505,000.000)	(2,270,000)	(5,010,000)	(4,540,000)
Amortization of prior service cost (credit)		0		0
Amortization of loss	1,449,000.000	2,011,000	2,898,000	4,022,000
Net other postretirement benefit cost	1,651,000.000	2,422,000	3,302,000	4,844,000
Pension Plans Defined Benefit [Member] | Entergy Texas [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	1,285,000.000	1,637,000	2,570,000	3,274,000
Interest cost on projected benefit obligation	4,437,000.000	4,055,000	8,874,000	8,110,000
Expected return on assets	(5,931,000.000)	(5,566,000)	(11,862,000)	(11,132,000)
Amortization of prior service cost (credit)		2,000		4,000
Amortization of loss	2,339,000.000	3,373,000	4,678,000	6,746,000
Net other postretirement benefit cost	2,130,000.000	3,501,000	4,260,000	7,002,000
Pension Plans Defined Benefit [Member] | System Energy [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	1,446,000.000	1,836,000	2,892,000	3,672,000
Interest cost on projected benefit obligation	3,390,000.000	3,016,000	6,780,000	6,032,000
Expected return on assets	(4,155,000.000)	(4,299,000)	(8,310,000)	(8,598,000)
Amortization of prior service cost (credit)		3,000		6,000
Amortization of loss	2,375,000.000	2,429,000	4,750,000	4,858,000
Net other postretirement benefit cost	3,056,000.000	2,985,000	6,112,000	5,970,000
Other Postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	10,873,000	18,917,000	21,746,000	37,834,000
Interest cost on projected benefit obligation	17,960,000	19,766,000	35,920,000	39,532,000
Expected return on assets	(11,197,000)	(9,950,000)	(22,394,000)	(19,900,000)
Amortization of prior service cost (credit)	(7,898,000)	(3,334,000)	(15,796,000)	(6,668,000)
Amortization of loss	2,786,000	11,304,000	5,572,000	22,608,000
Net other postretirement benefit cost	12,524,000	36,703,000	25,048,000	73,406,000
Other Postretirement [Member] | Entergy Arkansas [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	1,489,000.000	2,414,000.000	2,978,000	4,828,000
Interest cost on projected benefit obligation	3,065,000.000	3,360,000.000	6,130,000	6,720,000
Expected return on assets	(4,784,000.000)	(4,149,000.000)	(9,568,000)	(8,298,000)
Amortization of prior service cost (credit)	(610,000.000)	(133,000.000)	(1,220,000)	(266,000)
Amortization of loss	317,000.000	2,042,000.000	634,000	4,083,000
Net other postretirement benefit cost	(523,000.000)	3,534,000.000	(1,046,000)	7,067,000
Other Postretirement [Member] | Entergy Gulf States Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	1,224,000.000	2,001,000.000	2,448,000	4,002,000
Interest cost on projected benefit obligation	2,095,000.000	2,226,000.000	4,190,000	4,452,000
Expected return on assets			0	0
Amortization of prior service cost (credit)	(559,000.000)	(206,000.000)	(1,118,000)	(412,000)
Amortization of loss	303,000.000	1,173,000.000	606,000	2,347,000
Net other postretirement benefit cost	3,063,000.000	5,194,000.000	6,126,000	10,389,000
Other Postretirement [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	1,130,000.000	2,172,000.000	2,260,000	4,344,000
Interest cost on projected benefit obligation	2,066,000.000	2,349,000.000	4,132,000	4,698,000
Expected return on assets			0	0
Amortization of prior service cost (credit)	(844,000.000)	(62,000.000)	(1,688,000)	(124,000)
Amortization of loss	378,000.000	1,286,000.000	756,000	2,573,000
Net other postretirement benefit cost	2,730,000.000	5,745,000.000	5,460,000	11,491,000
Other Postretirement [Member] | Entergy Mississippi [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	475,000.000	819,000.000	950,000	1,638,000
Interest cost on projected benefit obligation	914,000.000	1,074,000.000	1,828,000	2,148,000
Expected return on assets	(1,443,000.000)	(1,317,000.000)	(2,886,000)	(2,634,000)
Amortization of prior service cost (credit)	(229,000.000)	(35,000.000)	(458,000)	(70,000)
Amortization of loss	37,000.000	663,000.000	74,000	1,325,000
Net other postretirement benefit cost	(246,000.000)	1,204,000.000	(492,000)	2,407,000
Other Postretirement [Member] | Entergy New Orleans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	217,000.000	447,000.000	434,000	894,000
Interest cost on projected benefit obligation	701,000.000	785,000.000	1,402,000	1,570,000
Expected return on assets	(1,119,000.000)	(1,014,000.000)	(2,238,000)	(2,028,000)
Amortization of prior service cost (credit)	(177,000.000)	10,000.000	(354,000)	20,000
Amortization of loss	14,000.000	397,000.000	28,000	793,000
Net other postretirement benefit cost	(364,000.000)	625,000.000	(728,000)	1,249,000
Other Postretirement [Member] | Entergy Texas [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	595,000.000	950,000.000	1,190,000	1,900,000
Interest cost on projected benefit obligation	1,413,000.000	1,515,000.000	2,826,000	3,030,000
Expected return on assets	(2,590,000.000)	(2,321,000.000)	(5,180,000)	(4,642,000)
Amortization of prior service cost (credit)	(325,000.000)	(107,000.000)	(650,000)	(214,000)
Amortization of loss	200,000.000	975,000.000	400,000	1,951,000
Net other postretirement benefit cost	(707,000.000)	1,012,000.000	(1,414,000)	2,025,000
Other Postretirement [Member] | System Energy [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the period	515,000.000	907,000.000	1,030,000	1,814,000
Interest cost on projected benefit obligation	653,000.000	729,000.000	1,306,000	1,458,000
Expected return on assets	(932,000.000)	(825,000.000)	(1,864,000)	(1,650,000)
Amortization of prior service cost (credit)	(206,000.000)	(16,000.000)	(412,000)	(32,000)
Amortization of loss	111,000.000	479,000.000	222,000	958,000
Net other postretirement benefit cost	141,000.000	1,274,000.000	282,000	2,548,000
Non-Qualified Pension Plans [Member] | Parent Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Net other postretirement benefit cost	9,100,000	5,500,000	19,100,000	10,900,000
Non-Qualified Pension Plans [Member] | Entergy Arkansas [Member]
Defined Benefit Plan Disclosure [Line Items]
Net other postretirement benefit cost	119,000	102,000	280,000	205,000
Non-Qualified Pension Plans [Member] | Entergy Gulf States Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Net other postretirement benefit cost	33,000	37,000	66,000	75,000
Non-Qualified Pension Plans [Member] | Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Net other postretirement benefit cost	1,000	3,000	2,000	6,000
Non-Qualified Pension Plans [Member] | Entergy Mississippi [Member]
Defined Benefit Plan Disclosure [Line Items]
Net other postretirement benefit cost	48,000	46,000	96,000	93,000
Non-Qualified Pension Plans [Member] | Entergy New Orleans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net other postretirement benefit cost	24,000	22,000	47,000	45,000
Non-Qualified Pension Plans [Member] | Entergy Texas [Member]
Defined Benefit Plan Disclosure [Line Items]
Net other postretirement benefit cost	$ 119,000	$ 148,000	$ 244,000	$ 297,000