Consolidated Statements Of Income (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
OPERATING REVENUES
Electric	$ 2,177,210,000	$ 1,934,550,000	$ 4,126,490,000	$ 3,719,392,000
Natural gas	33,881,000	23,879,000	87,202,000	69,886,000
Competitive businesses	527,117,000	560,171,000	1,133,390,000	1,112,982,000
TOTAL	2,738,208,000	2,518,600,000	5,347,082,000	4,902,260,000
Operating and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	489,608,000	437,157,000	999,940,000	975,994,000
Purchased power	485,744,000	345,298,000	858,873,000	630,264,000
Nuclear refueling outage expenses	66,464,000	57,822,000	127,183,000	121,706,000
Asset impairment	0	0	0	355,524,000
Other operation and maintenance	844,195,000	772,881,000	1,598,453,000	1,494,517,000
Decommissioning	59,389,000	11,942,000	118,494,000	69,845,000
Taxes other than income taxes	144,888,000	138,111,000	295,983,000	275,280,000
Depreciation and amortization	297,516,000	274,755,000	598,392,000	554,971,000
Other regulatory charges (credits) - net	3,892,000	137,650,000	9,207,000	138,032,000
TOTAL	2,391,696,000	2,175,616,000	4,606,525,000	4,616,133,000
OPERATING INCOME	346,512,000	342,984,000	740,557,000	286,127,000
OTHER INCOME
Allowance for equity funds used during construction	16,249,000	28,282,000	29,000,000	52,590,000
Interest and investment income	40,541,000	29,285,000	78,847,000	70,276,000
Miscellaneous - net	(13,157,000)	(13,036,000)	(26,779,000)	(31,025,000)
TOTAL	43,633,000	44,531,000	81,068,000	91,841,000
INTEREST EXPENSE
Interest expense	155,768,000	149,616,000	308,918,000	296,361,000
Allowance for borrowed funds used during construction	(6,791,000)	(10,483,000)	(11,979,000)	(19,874,000)
TOTAL	148,977,000	139,133,000	296,939,000	276,487,000
INCOME BEFORE INCOME TAXES	241,168,000	248,382,000	524,686,000	101,481,000
Income taxes	73,113,000	(122,201,000)	189,648,000	(122,363,000)
CONSOLIDATED NET INCOME	168,055,000	370,583,000	335,038,000	223,844,000
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	4,332,000	5,582,000	9,915,000	10,526,000
EARNINGS APPLICABLE TO COMMON STOCK	163,723,000	365,001,000	325,123,000	213,318,000
Earnings per average common share:
Basic	$ 0.92	$ 2.06	$ 1.83	$ 1.21
Diluted	$ 0.92	$ 2.06	$ 1.82	$ 1.20
Dividends declared per common share	$ 0.83	$ 0.83	$ 1.66	$ 1.66
Basic average number of common shares outstanding	178,196,525	177,166,519	178,112,709	177,015,941
Diluted average number of common shares outstanding	178,614,383	177,565,351	178,534,201	177,470,486
Entergy Arkansas [Member]
OPERATING REVENUES
Electric	508,653,000	502,022,000	1,051,045,000	977,200,000
Operating and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	60,077,000	112,126,000	207,850,000	246,928,000
Purchased power	131,593,000	94,373,000	237,907,000	173,169,000
Nuclear refueling outage expenses	8,088,000	11,763,000	19,628,000	23,550,000
Other operation and maintenance	148,888,000	140,458,000	290,508,000	265,831,000
Decommissioning	10,680,000	10,042,000	21,197,000	19,930,000
Taxes other than income taxes	21,518,000	21,713,000	44,770,000	42,397,000
Depreciation and amortization	55,340,000	55,364,000	113,976,000	110,605,000
Other regulatory charges (credits) - net	(8,473,000)	(31,716,000)	(9,047,000)	(32,925,000)
TOTAL	427,711,000	414,123,000	926,789,000	849,485,000
OPERATING INCOME	80,942,000	87,899,000	124,256,000	127,715,000
OTHER INCOME
Allowance for equity funds used during construction	2,724,000	2,508,000	4,950,000	4,233,000
Interest and investment income	11,111,000	1,515,000	16,886,000	7,372,000
Miscellaneous - net	(779,000)	(1,190,000)	(1,944,000)	(2,643,000)
TOTAL	13,056,000	2,833,000	19,892,000	8,962,000
INTEREST EXPENSE
Interest expense	23,458,000	20,425,000	46,037,000	41,175,000
Allowance for borrowed funds used during construction	(953,000)	(634,000)	(1,729,000)	(1,076,000)
TOTAL	22,505,000	19,791,000	44,308,000	40,099,000
INCOME BEFORE INCOME TAXES	71,493,000	70,941,000	99,840,000	96,578,000
Income taxes	31,010,000	25,186,000	44,638,000	36,949,000
CONSOLIDATED NET INCOME	40,483,000	45,755,000	55,202,000	59,629,000
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	1,718,000	1,718,000	3,437,000	3,437,000
EARNINGS APPLICABLE TO COMMON STOCK	38,765,000	44,037,000	51,765,000	56,192,000
Entergy Gulf States Louisiana [Member]
OPERATING REVENUES
Electric	479,895,000	392,993,000	879,032,000	775,179,000
Natural gas	12,466,000	8,363,000	33,284,000	25,799,000
TOTAL	492,361,000	401,356,000	912,316,000	800,978,000
Operating and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	60,500,000	25,130,000	108,338,000	96,427,000
Purchased power	203,999,000	137,347,000	366,076,000	261,511,000
Nuclear refueling outage expenses	5,210,000	4,367,000	9,536,000	8,732,000
Other operation and maintenance	102,183,000	92,424,000	194,905,000	178,059,000
Decommissioning	3,948,000	3,728,000	7,840,000	7,404,000
Taxes other than income taxes	20,145,000	17,692,000	39,383,000	36,587,000
Depreciation and amortization	37,927,000	36,290,000	75,299,000	72,387,000
Other regulatory charges (credits) - net	4,593,000	28,341,000	5,000,000	28,608,000
TOTAL	438,505,000	345,319,000	806,377,000	689,715,000
OPERATING INCOME	53,856,000	56,037,000	105,939,000	111,263,000
OTHER INCOME
Allowance for equity funds used during construction	1,809,000	2,490,000	3,459,000	4,752,000
Interest and investment income	13,956,000	8,670,000	24,811,000	19,908,000
Miscellaneous - net	(2,400,000)	(2,485,000)	(5,040,000)	(5,112,000)
TOTAL	13,365,000	8,675,000	23,230,000	19,548,000
INTEREST EXPENSE
Interest expense	20,274,000	20,836,000	40,473,000	41,891,000
Allowance for borrowed funds used during construction	(660,000)	(965,000)	(1,351,000)	(1,864,000)
TOTAL	19,614,000	19,871,000	39,122,000	40,027,000
INCOME BEFORE INCOME TAXES	47,607,000	44,841,000	90,047,000	90,784,000
Income taxes	17,887,000	(5,548,000)	33,162,000	12,036,000
CONSOLIDATED NET INCOME	29,720,000	50,389,000	56,885,000	78,748,000
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	206,000	206,000	412,000	412,000
EARNINGS APPLICABLE TO COMMON STOCK	29,514,000	50,183,000	56,473,000	78,336,000
Entergy Louisiana [Member]
OPERATING REVENUES
Electric	635,805,000	561,787,000	1,241,890,000	1,044,145,000
Operating and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	93,152,000	114,824,000	211,859,000	186,883,000
Purchased power	236,413,000	158,905,000	465,422,000	337,118,000
Nuclear refueling outage expenses	9,079,000	6,084,000	15,931,000	12,470,000
Other operation and maintenance	127,225,000	112,295,000	232,352,000	228,036,000
Decommissioning	5,368,000	6,559,000	10,669,000	13,003,000
Taxes other than income taxes	18,987,000	16,927,000	37,787,000	34,209,000
Depreciation and amortization	60,907,000	54,153,000	120,745,000	107,832,000
Other regulatory charges (credits) - net	(4,017,000)	133,293,000	(6,294,000)	129,705,000
TOTAL	547,114,000	603,040,000	1,088,471,000	1,049,256,000
OPERATING INCOME	88,691,000	(41,253,000)	153,419,000	(5,111,000)
OTHER INCOME
Allowance for equity funds used during construction	7,097,000	8,602,000	12,839,000	17,051,000
Interest and investment income	21,126,000	20,364,000	42,915,000	41,612,000
Miscellaneous - net	(793,000)	(828,000)	(1,653,000)	(2,199,000)
TOTAL	27,430,000	28,138,000	54,101,000	56,464,000
INTEREST EXPENSE
Interest expense	36,904,000	33,035,000	73,333,000	65,703,000
Allowance for borrowed funds used during construction	(3,036,000)	(3,895,000)	(5,484,000)	(7,754,000)
TOTAL	33,868,000	29,140,000	67,849,000	57,949,000
INCOME BEFORE INCOME TAXES	82,253,000	(42,255,000)	139,671,000	(6,596,000)
Income taxes	20,876,000	(172,969,000)	32,918,000	(170,605,000)
CONSOLIDATED NET INCOME	61,377,000	130,714,000	106,753,000	164,009,000
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	1,738,000	1,738,000	3,475,000	3,475,000
EARNINGS APPLICABLE TO COMMON STOCK	59,639,000	128,976,000	103,278,000	160,534,000
Entergy Mississippi [Member]
OPERATING REVENUES
Electric	326,039,000	277,204,000	617,680,000	538,964,000
Operating and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	71,188,000	62,914,000	144,749,000	147,473,000
Purchased power	93,162,000	72,895,000	178,074,000	138,323,000
Other operation and maintenance	69,609,000	60,261,000	127,559,000	108,597,000
Taxes other than income taxes	20,227,000	18,454,000	40,114,000	37,238,000
Depreciation and amortization	26,900,000	24,287,000	53,551,000	48,074,000
Other regulatory charges (credits) - net	(1,856,000)	(3,832,000)	(10,299,000)	(11,304,000)
TOTAL	279,230,000	234,979,000	533,748,000	468,401,000
OPERATING INCOME	46,809,000	42,225,000	83,932,000	70,563,000
OTHER INCOME
Allowance for equity funds used during construction	713,000	1,025,000	1,446,000	2,190,000
Interest and investment income	187,000	14,000	326,000	24,000
Miscellaneous - net	(976,000)	(1,055,000)	(1,834,000)	(2,110,000)
TOTAL	(76,000)	(16,000)	(62,000)	104,000
INTEREST EXPENSE
Interest expense	14,875,000	14,103,000	30,168,000	28,648,000
Allowance for borrowed funds used during construction	(471,000)	(547,000)	(926,000)	(1,163,000)
TOTAL	14,404,000	13,556,000	29,242,000	27,485,000
INCOME BEFORE INCOME TAXES	32,329,000	28,653,000	54,628,000	43,182,000
Income taxes	13,375,000	12,739,000	21,740,000	18,586,000
CONSOLIDATED NET INCOME	18,954,000	15,914,000	32,888,000	24,596,000
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	707,000	707,000	1,414,000	1,414,000
EARNINGS APPLICABLE TO COMMON STOCK	18,247,000	15,207,000	31,474,000	23,182,000
Entergy New Orleans
OPERATING REVENUES
Electric	121,426,000	113,729,000	235,389,000	214,313,000
Natural gas	21,415,000	15,515,000	53,918,000	44,087,000
TOTAL	142,841,000	129,244,000	289,307,000	258,400,000
Operating and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	12,586,000	11,605,000	41,449,000	39,287,000
Purchased power	68,164,000	54,401,000	128,323,000	101,632,000
Other operation and maintenance	37,134,000	32,908,000	68,367,000	63,804,000
Taxes other than income taxes	11,522,000	10,621,000	23,768,000	21,169,000
Depreciation and amortization	9,559,000	9,199,000	19,002,000	18,268,000
Other regulatory charges (credits) - net	249,000	501,000	499,000	981,000
TOTAL	139,214,000	119,235,000	281,408,000	245,141,000
OPERATING INCOME	3,627,000	10,009,000	7,899,000	13,259,000
OTHER INCOME
Allowance for equity funds used during construction	263,000	153,000	433,000	302,000
Interest and investment income	23,000	6,000	44,000	21,000
Miscellaneous - net	(328,000)	(357,000)	(644,000)	(762,000)
TOTAL	(42,000)	(198,000)	(167,000)	(439,000)
INTEREST EXPENSE
Interest expense	3,448,000	2,795,000	6,651,000	5,628,000
Allowance for borrowed funds used during construction	(135,000)	(71,000)	(221,000)	(142,000)
TOTAL	3,313,000	2,724,000	6,430,000	5,486,000
INCOME BEFORE INCOME TAXES	272,000	7,087,000	1,302,000	7,334,000
Income taxes	(326,000)	(99,000)	(603,000)	108,000
CONSOLIDATED NET INCOME	598,000	7,186,000	1,905,000	7,226,000
Net Income (Loss) Attributable to Noncontrolling Interest, Preferred Unit Holders	241,000	241,000	482,000	482,000
EARNINGS APPLICABLE TO COMMON STOCK	357,000	6,945,000	1,423,000	6,744,000
Entergy Texas [Member]
OPERATING REVENUES
Electric	455,100,000	358,067,000	761,273,000	684,991,000
Operating and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	60,044,000	30,893,000	33,944,000	74,931,000
Purchased power	234,228,000	170,602,000	426,947,000	322,725,000
Other operation and maintenance	67,177,000	56,625,000	123,667,000	112,448,000
Taxes other than income taxes	15,051,000	15,814,000	29,701,000	31,609,000
Depreciation and amortization	23,712,000	21,117,000	47,072,000	41,844,000
Other regulatory charges (credits) - net	16,533,000	14,033,000	35,310,000	27,389,000
TOTAL	416,745,000	309,084,000	696,641,000	610,946,000
OPERATING INCOME	38,355,000	48,983,000	64,632,000	74,045,000
OTHER INCOME
Allowance for equity funds used during construction	1,910,000	985,000	2,669,000	2,074,000
Interest and investment income	339,000	1,458,000	686,000	2,918,000
Miscellaneous - net	(485,000)	(849,000)	(1,343,000)	(1,644,000)
TOTAL	1,764,000	1,594,000	2,012,000	3,348,000
INTEREST EXPENSE
Interest expense	23,151,000	23,454,000	46,332,000	47,264,000
Allowance for borrowed funds used during construction	(1,331,000)	(658,000)	(1,886,000)	(1,384,000)
TOTAL	21,820,000	22,796,000	44,446,000	45,880,000
INCOME BEFORE INCOME TAXES	18,299,000	27,781,000	22,198,000	31,513,000
Income taxes	7,346,000	11,577,000	10,323,000	13,565,000
CONSOLIDATED NET INCOME	10,953,000	16,204,000	11,875,000	17,948,000
System Energy [Member]
OPERATING REVENUES
Electric	172,177,000	113,699,000	340,755,000	239,733,000
Operating and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale	28,586,000	3,077,000	50,103,000	13,438,000
Nuclear refueling outage expenses	7,358,000	2,884,000	14,715,000	7,048,000
Other operation and maintenance	40,437,000	33,441,000	80,378,000	67,725,000
Decommissioning	8,787,000	8,180,000	17,418,000	16,214,000
Taxes other than income taxes	6,484,000	5,519,000	12,973,000	11,032,000
Depreciation and amortization	32,030,000	25,324,000	67,446,000	54,998,000
Other regulatory charges (credits) - net	(3,137,000)	(2,971,000)	(5,962,000)	(4,423,000)
TOTAL	120,545,000	75,454,000	237,071,000	166,032,000
OPERATING INCOME	51,632,000	38,245,000	103,684,000	73,701,000
OTHER INCOME
Allowance for equity funds used during construction	1,732,000	12,518,000	3,203,000	21,987,000
Interest and investment income	2,514,000	2,076,000	5,191,000	5,602,000
Miscellaneous - net	(191,000)	(143,000)	(359,000)	(300,000)
TOTAL	4,055,000	14,451,000	8,035,000	27,289,000
INTEREST EXPENSE
Interest expense	9,451,000	10,596,000	18,655,000	21,445,000
Allowance for borrowed funds used during construction	(203,000)	(3,714,000)	(381,000)	(6,491,000)
TOTAL	9,248,000	6,882,000	18,274,000	14,954,000
INCOME BEFORE INCOME TAXES	46,439,000	45,814,000	93,445,000	86,036,000
Income taxes	18,705,000	10,446,000	37,705,000	24,132,000
CONSOLIDATED NET INCOME	$ 27,734,000	$ 35,368,000	$ 55,740,000	$ 61,904,000