Consolidated Balance Sheets (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Entergy Arkansas [Member]	Dec. 31, 2013 Entergy Arkansas [Member]	Sep. 30, 2014 Entergy Gulf States Louisiana [Member]	Dec. 31, 2013 Entergy Gulf States Louisiana [Member]	Sep. 30, 2014 Entergy Louisiana [Member]	Dec. 31, 2013 Entergy Louisiana [Member]	Sep. 30, 2014 Entergy Mississippi [Member]	Dec. 31, 2013 Entergy Mississippi [Member]	Sep. 30, 2014 Entergy New Orleans [Member]	Dec. 31, 2013 Entergy New Orleans [Member]	Sep. 30, 2014 Entergy Texas [Member]	Dec. 31, 2013 Entergy Texas [Member]	Sep. 30, 2014 System Energy [Member]	Dec. 31, 2013 System Energy [Member]
Cash and cash equivalents:
Cash	$ 90,910,000	$ 129,979,000	$ 11,749,000	$ 4,181,000	$ 30,666,000	$ 1,739,000	$ 343,000	$ 427,000	$ 1,357,000	$ 22,000	$ 1,021,000	$ 317,000	$ 2,028,000	$ 2,432,000	$ 570,000	$ 62,561,000
Temporary cash investments	977,599,000	609,147,000	78,000	122,841,000	121,422,000	13,842,000	2,559,000	123,580,000	30,378,000	9,000	37,644,000	33,172,000	38,030,000	44,056,000	134,261,000	64,581,000
Total cash and cash equivalents	1,068,509,000	739,126,000	11,827,000	127,022,000	152,088,000	15,581,000	2,902,000	124,007,000	31,735,000	31,000	38,665,000	33,489,000	40,058,000	46,488,000	134,831,000	127,142,000
Securitization recovery trust account			8,315,000	3,835,000			10,351,000	4,539,000					32,128,000	37,511,000
Accounts receivable:
Customer	765,306,000	670,641,000	133,118,000	102,328,000	97,243,000	69,648,000	176,650,000	144,836,000	104,122,000	76,534,000	42,941,000	38,872,000	85,038,000	76,957,000
Allowance for doubtful accounts	(34,687,000)	(34,311,000)	(30,463,000)	(30,113,000)	(879,000)	(909,000)	(1,116,000)	(965,000)	(1,050,000)	(906,000)	(366,000)	(974,000)	(813,000)	(443,000)
Associated companies			32,870,000	68,875,000	129,805,000	107,723,000	78,027,000	87,820,000	18,883,000	13,794,000	19,832,000	32,273,000	76,560,000	76,494,000	96,728,000	104,419,000
Other	219,300,000	195,028,000	103,306,000	94,256,000	36,882,000	22,945,000	15,245,000	21,420,000	28,211,000	9,117,000	1,830,000	2,667,000	15,188,000	10,897,000	5,281,000	6,400,000
Accrued unbilled revenues	363,464,000	340,828,000	91,794,000	82,298,000	61,583,000	58,867,000	100,044,000	93,073,000	46,151,000	44,777,000	17,782,000	18,745,000	46,110,000	43,067,000
Total accounts receivable	1,313,383,000	1,172,186,000	330,625,000	317,644,000	324,634,000	258,274,000	368,850,000	346,184,000	196,317,000	143,316,000	82,019,000	91,583,000	222,083,000	206,972,000	102,009,000	110,819,000
Deferred fuel costs	205,553,000	116,379,000	158,367,000	68,696,000	0	9,625,000			40,473,000	38,057,000			6,714,000	0
Accumulated deferred income taxes	14,159,000	175,073,000	0	33,556,000			18,282,000	100,022,000			7,322,000	12,018,000	17,600,000	0
Fuel inventory - at average cost	179,095,000	208,958,000	28,490,000	41,504,000	19,427,000	26,555,000	21,619,000	23,311,000	42,860,000	48,899,000	3,074,000	2,999,000	53,220,000	55,335,000
Materials and supplies - at average cost	929,934,000	915,006,000	161,561,000	152,429,000	127,501,000	122,909,000	156,198,000	156,487,000	37,778,000	40,849,000	12,412,000	11,696,000	34,466,000	34,068,000	81,284,000	85,118,000
Deferred nuclear refueling outage costs	272,110,000	192,474,000	38,489,000	31,135,000	10,528,000	25,975,000	29,877,000	13,670,000							32,759,000	7,853,000
Gas hedge contracts					0	2,238,000	0	2,889,000
System agreement costs equalization			0	30,000,000					0	15,000,000			0	16,040,000
Prepaid taxes			30,597,000	0	3,861,000	22,008,000	192,213,000	184,503,000					0	55,635,000
Prepayments and other	281,796,000	410,489,000	22,378,000	58,911,000	34,203,000	12,452,000	27,165,000	15,223,000	10,843,000	4,813,000	12,263,000	4,178,000	47,467,000	34,458,000	4,009,000	1,727,000
TOTAL	4,264,539,000	3,929,691,000	790,649,000	864,732,000	672,242,000	495,617,000	827,457,000	970,835,000	360,006,000	290,965,000	155,755,000	155,963,000	453,736,000	486,507,000	354,892,000	332,659,000
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	39,756,000	40,350,000			355,906,000	289,664,000	1,034,696,000	807,423,000					661,000	687,000
Decommissioning trust funds	5,179,952,000	4,903,144,000	745,144,000	710,913,000	613,661,000	573,744,000	368,331,000	347,274,000							650,700,000	603,896,000
Non-utility property - at cost (less accumulated depreciation)	201,943,000	199,375,000	1,756,000	1,664,000	178,801,000	174,134,000	260,000	396,000	4,649,000	4,670,000	1,016,000	1,016,000	376,000	376,000
Escrow accounts					90,046,000	21,538,000	200,021,000	0	41,799,000	51,795,000	16,151,000	10,513,000
Other	408,539,000	210,616,000	15,381,000	29,181,000	14,782,000	14,145,000							18,942,000	18,161,000
TOTAL	5,830,190,000	5,353,485,000	762,281,000	741,758,000	1,253,196,000	1,073,225,000	1,603,308,000	1,155,093,000	46,448,000	56,465,000	17,167,000	11,529,000	19,979,000	19,224,000	650,700,000	603,896,000
PROPERTY, PLANT AND EQUIPMENT
Electric	43,781,183,000	42,935,712,000	9,080,352,000	8,798,458,000	7,509,701,000	7,400,689,000	8,927,733,000	8,799,393,000	3,953,270,000	3,875,737,000	929,046,000	889,629,000	3,724,088,000	3,616,061,000	4,142,718,000	4,124,647,000
Property under capital lease	940,372,000	941,299,000	988,000	1,064,000			331,895,000	331,895,000	4,479,000	5,329,000					570,872,000	570,872,000
Natural gas	374,094,000	366,365,000			148,256,000	143,902,000					225,838,000	222,463,000
Construction work in progress	1,913,757,000	1,514,857,000	215,255,000	209,036,000	145,121,000	105,314,000	820,832,000	672,883,000	70,318,000	37,316,000	14,481,000	29,312,000	95,913,000	94,743,000	39,679,000	29,061,000
Nuclear fuel	1,550,732,000	1,566,904,000	297,658,000	321,901,000	128,186,000	196,508,000	172,191,000	147,385,000							261,710,000	188,824,000
TOTAL PROPERTY, PLANT AND EQUIPMENT	48,560,138,000	47,325,137,000	9,594,253,000	9,330,459,000	7,931,264,000	7,846,413,000	10,252,651,000	9,951,556,000	4,028,067,000	3,918,382,000	1,169,365,000	1,141,404,000	3,820,001,000	3,710,804,000	5,014,979,000	4,913,404,000
Less - accumulated depreciation and amortization	20,271,000,000	19,443,493,000	4,147,088,000	4,034,880,000	4,152,003,000	4,071,762,000	3,906,055,000	3,763,234,000	1,496,584,000	1,413,484,000	588,813,000	566,948,000	1,443,022,000	1,387,303,000	2,785,310,000	2,699,263,000
PROPERTY, PLANT AND EQUIPMENT - NET	28,289,138,000	27,881,644,000	5,447,165,000	5,295,579,000	3,779,261,000	3,774,651,000	6,346,596,000	6,188,322,000	2,531,483,000	2,504,898,000	580,552,000	574,456,000	2,376,979,000	2,323,501,000	2,229,669,000	2,214,141,000
Regulatory assets:
Regulatory asset for income taxes - net	838,899,000	849,718,000	68,714,000	73,864,000	162,584,000	165,456,000	320,274,000	309,617,000	49,186,000	58,716,000	2,913,000	0	126,893,000	129,069,000	108,335,000	115,492,000
Other regulatory assets	3,757,127,000	3,893,363,000	1,027,849,000	1,014,392,000	317,228,000	321,466,000	718,932,000	715,503,000	259,332,000	318,462,000	131,628,000	137,191,000	850,599,000	919,234,000	266,095,000	261,740,000
Deferred fuel costs	238,102,000	172,202,000	65,900,000	0	100,124,000	100,124,000	67,998,000	67,998,000			4,080,000	4,080,000
Goodwill	377,172,000	377,172,000
Accumulated deferred income taxes	43,276,000	62,011,000
Long-term receivables - associated companies													26,558,000	27,900,000
Other	903,206,000	887,160,000	45,804,000	44,565,000	14,767,000	12,049,000	46,540,000	43,025,000	19,503,000	20,819,000	6,108,000	5,577,000	15,707,000	16,425,000	14,390,000	15,996,000
TOTAL	6,157,782,000	6,241,626,000	1,208,267,000	1,132,821,000	594,703,000	599,095,000	1,153,744,000	1,136,143,000	328,021,000	397,997,000	144,729,000	146,848,000	1,019,757,000	1,092,628,000	388,820,000	393,228,000
TOTAL ASSETS	44,541,649,000	43,406,446,000	8,208,362,000	8,034,890,000	6,299,402,000	5,942,588,000	9,931,105,000	9,450,393,000	3,265,958,000	3,250,325,000	898,203,000	888,796,000	3,870,451,000	3,921,860,000	3,624,081,000	3,543,924,000
CURRENT LIABILITIES
Currently maturing long-term debt	1,114,046,000	457,095,000	0	70,000,000			269,525,000	320,231,000					200,000,000	0	76,310,000	48,653,000
Short-term borrowings			8,036,000	0			66,389,000	2,923,000							40,846,000	0
Notes payable and commercial paper	891,445,000	1,046,887,000
Associated companies accounts payable			162,164,000	149,802,000	128,944,000	95,853,000	75,198,000	83,655,000	41,532,000	74,144,000	28,392,000	36,193,000	102,796,000	112,309,000	4,801,000	12,778,000
Accounts payable	1,104,105,000	1,173,313,000
Other			142,733,000	228,160,000	104,576,000	103,314,000	142,652,000	162,507,000	64,357,000	52,129,000	26,493,000	27,840,000	74,882,000	73,682,000	33,152,000	31,862,000
Customer deposits	406,114,000	370,997,000	113,750,000	86,512,000	55,892,000	51,839,000	92,294,000	90,393,000	76,774,000	74,211,000	24,423,000	22,959,000	42,900,000	38,721,000
Taxes accrued	210,838,000	191,093,000	0	9,979,000					95,230,000	53,247,000	2,603,000	1,509,000	28,520,000	0	4,397,000	11,121,000
Accumulated deferred income taxes	55,126,000	28,307,000	20,586,000	9,231,000	11,757,000	36,330,000	0	338,000	11,806,000	15,413,000			0	33,847,000	12,676,000	2,310,000
Interest accrued	177,066,000	180,997,000	21,007,000	22,036,000	31,751,000	25,808,000	38,838,000	42,072,000	20,429,000	20,383,000	2,666,000	3,598,000	21,502,000	31,246,000	32,091,000	11,825,000
Deferred fuel costs	88,230,000	57,631,000			20,692,000	0	48,936,000	30,392,000			18,603,000	23,145,000	0	4,093,000
Obligations under capital leases	2,460,000	2,323,000
Pension and other postretirement liabilities	52,497,000	67,419,000			9,097,000	9,065,000	10,075,000	10,255,000					722,000	786,000
System agreement cost equalization					0	15,000,000	0	17,000,000			6,569,000	17,040,000	0	12,000,000
Other	351,640,000	484,510,000	39,704,000	55,656,000	39,030,000	19,032,000	34,542,000	19,443,000	19,236,000	19,021,000	8,579,000	4,387,000	26,089,000	23,490,000	2,316,000	2,312,000
TOTAL	4,453,567,000	4,060,572,000	507,980,000	631,376,000	401,739,000	356,241,000	778,449,000	779,209,000	329,364,000	308,548,000	118,328,000	136,671,000	497,411,000	330,174,000	206,589,000	120,861,000
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	9,063,086,000	8,724,635,000	1,976,404,000	1,906,562,000	1,611,906,000	1,512,547,000	1,345,415,000	1,275,584,000	730,869,000	746,939,000	197,371,000	183,636,000	1,026,601,000	1,022,955,000	789,524,000	737,973,000
Accumulated deferred investment tax credits	257,036,000	263,765,000	38,020,000	38,958,000	73,031,000	75,295,000	65,415,000	67,347,000	9,929,000	8,530,000	918,000	1,082,000	15,084,000	16,147,000	53,120,000	54,786,000
Regulatory liability for income taxes - net											0	2,495,000
Obligations under capital leases	30,354,000	32,218,000							3,261,000	4,185,000
Other regulatory liabilities	1,337,549,000	1,295,955,000	235,804,000	219,370,000	169,446,000	159,429,000	536,990,000	533,247,000	2,191,000	2,509,000	27,600,000	26,361,000	12,837,000	5,194,000	352,681,000	349,846,000
Decommissioning and asset retirement cost liabilities	4,272,151,000	3,933,416,000	806,232,000	723,771,000	420,633,000	403,084,000	497,455,000	479,086,000	6,687,000	6,401,000	2,469,000	2,347,000	4,543,000	4,349,000	647,263,000	616,157,000
Accumulated provisions	403,492,000	115,139,000	4,835,000	5,746,000	104,667,000	37,146,000	212,750,000	7,733,000	45,826,000	35,674,000	23,164,000	15,000,000	8,824,000	9,079,000
Pension and other postretirement liabilities	2,044,173,000	2,320,704,000	234,929,000	319,211,000	256,071,000	274,315,000	321,365,000	358,017,000	43,174,000	66,722,000	21,053,000	32,497,000	32,514,000	51,253,000	65,027,000	79,411,000
Long-term debt	11,634,662,000	12,139,149,000	2,429,578,000	2,335,802,000	1,622,755,000	1,527,465,000	3,099,409,000	2,899,285,000	1,058,806,000	1,053,670,000	225,886,000	225,944,000	1,290,216,000	1,556,939,000	634,467,000	708,783,000
Long-term payables of associated companies					26,558,000	27,900,000
Gas system rebuild insurance proceeds											25,425,000	32,760,000
Other	591,784,000	583,667,000	23,312,000	18,026,000	136,064,000	108,189,000	79,607,000	75,233,000	15,075,000	15,189,000	5,050,000	3,940,000	64,085,000	38,743,000
TOTAL	29,634,287,000	29,408,648,000	5,749,114,000	5,567,446,000	4,421,131,000	4,125,370,000	6,158,406,000	5,695,532,000	1,915,818,000	1,939,819,000	528,936,000	526,062,000	2,454,704,000	2,704,659,000	2,542,082,000	2,546,956,000
Subsidiaries' preferred stock without sinking fund	210,760,000	210,760,000	116,350,000	116,350,000					50,381,000	50,381,000	19,780,000	19,780,000
Common Shareholders' Equity:
Common stock	2,548,000	2,548,000	470,000	470,000					199,326,000	199,326,000	33,744,000	33,744,000	49,452,000	49,452,000	789,350,000	789,350,000
Paid-in capital	5,367,768,000	5,368,131,000	588,471,000	588,471,000					(690,000)	(690,000)	36,294,000	36,294,000	481,994,000	481,994,000
Retained earnings	10,199,338,000	9,825,053,000	1,245,977,000	1,130,777,000					771,759,000	752,941,000	161,121,000	136,245,000	386,890,000	355,581,000	86,060,000	86,757,000
Accumulated other comprehensive income (loss)	20,384,000	(29,324,000)			(27,806,000)	(28,202,000)	(10,511,000)	(9,635,000)
Less - treasury stock, at cost	5,441,003,000	5,533,942,000
Total common shareholders' equity	10,149,035,000	9,632,466,000
Subsidiaries' preferred stock without sinking fund	94,000,000	94,000,000			10,000,000	10,000,000	100,000,000	100,000,000
Members' Equity					1,494,338,000	1,479,179,000	2,904,761,000	2,885,287,000
TOTAL	10,243,035,000	9,726,466,000	1,834,918,000	1,719,718,000	1,476,532,000	1,460,977,000	2,994,250,000	2,975,652,000	970,395,000	951,577,000	231,159,000	206,283,000	918,336,000	887,027,000	875,410,000	876,107,000
TOTAL LIABILITIES AND EQUITY	$ 44,541,649,000	$ 43,406,446,000	$ 8,208,362,000	$ 8,034,890,000	$ 6,299,402,000	$ 5,942,588,000	$ 9,931,105,000	$ 9,450,393,000	$ 3,265,958,000	$ 3,250,325,000	$ 898,203,000	$ 888,796,000	$ 3,870,451,000	$ 3,921,860,000	$ 3,624,081,000	$ 3,543,924,000