Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Cash and cash equivalents:
Cash	$ 79,637	$ 131,327
Temporary cash investments	960,961	1,290,699
Total cash and cash equivalents	1,040,598	1,422,026
Accounts receivable:
Customer	805,964	596,917
Allowance for doubtful accounts	(39,581)	(35,663)
Other	190,984	220,342
Accrued unbilled revenues	375,772	321,659
Total accounts receivable	1,333,139	1,103,255
Deferred fuel costs	54,431	155,140
Accumulated deferred income taxes	2,951	27,783
Fuel inventory - at average cost	213,012	205,434
Materials and supplies - at average cost	881,508	918,584
Deferred nuclear refueling outage costs	191,594	214,188
Prepayments and other	400,113	343,223
TOTAL	4,117,346	4,389,633
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	36,684	36,234
Decommissioning trust funds	5,191,092	5,370,932
Non-utility property - at cost (less accumulated depreciation)	217,756	213,791
Other	474,190	405,169
TOTAL	5,919,722	6,026,126
PROPERTY, PLANT, AND EQUIPMENT
Electric	44,744,086	44,881,419
Property under capital lease	944,774	945,784
Natural gas	389,175	377,565
Construction work in progress	1,424,863	1,425,981
Nuclear fuel	1,359,226	1,542,055
TOTAL PROPERTY, PLANT, AND EQUIPMENT	48,862,124	49,172,804
Less - accumulated depreciation and amortization	20,875,573	20,449,858
PROPERTY, PLANT, AND EQUIPMENT - NET	27,986,551	28,722,946
Regulatory assets:
Regulatory asset for income taxes - net	785,753	836,064
Other regulatory assets	4,825,115	4,968,553
Deferred fuel costs	238,837	238,102
Goodwill	377,172	377,172
Accumulated deferred income taxes	52,596	48,351
Other	738,513	920,907
TOTAL	7,017,986	7,389,149
TOTAL ASSETS	45,041,605	46,527,854
CURRENT LIABILITIES
Currently maturing long-term debt	278,714	899,375
Notes payable and commercial paper	782,022	598,407
Accounts payable	1,042,173	1,166,431
Customer deposits	419,963	412,166
Taxes accrued	236,337	128,108
Accumulated deferred income taxes	93,558	38,039
Interest accrued	171,642	206,010
Deferred fuel costs	157,011	91,602
Obligations under capital leases	2,657	2,508
Pension and other postretirement liabilities	54,587	57,994
Other	215,162	248,251
TOTAL	3,453,826	3,848,891
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	8,693,338	9,133,161
Accumulated deferred investment tax credits	247,001	247,521
Obligations under capital leases	27,697	29,710
Other regulatory liabilities	1,258,329	1,383,609
Decommissioning and asset retirement cost liabilities	4,668,821	4,458,296
Accumulated provisions	473,330	418,128
Pension and other postretirement liabilities	3,334,064	3,638,295
Long-term debt	13,052,547	12,500,109
Other	464,767	557,649
TOTAL	32,219,894	32,366,478
Subsidiaries' preferred stock without sinking fund	210,760	210,760
Common Shareholders' Equity:
Common stock	2,548	2,548
Paid-in capital	5,378,947	5,375,353
Retained earnings	9,445,969	10,169,657
Accumulated other comprehensive loss	(117,798)	(42,307)
Less - treasury stock, at cost	5,552,541	5,497,526
Total common shareholders' equity	9,157,125	10,007,725
Subsidiaries' preferred stock without sinking fund	0	94,000
TOTAL	9,157,125	10,101,725
TOTAL LIABILITIES AND EQUITY	45,041,605	46,527,854
Entergy Arkansas [Member]
Cash and cash equivalents:
Cash	8,799	10,526
Temporary cash investments	110,561	207,979
Total cash and cash equivalents	119,360	218,505
Securitization recovery trust account	8,527	4,096
Accounts receivable:
Customer	164,445	97,314
Allowance for doubtful accounts	(32,633)	(32,247)
Associated companies	35,983	32,187
Other	102,068	110,269
Accrued unbilled revenues	93,076	80,704
Total accounts receivable	362,939	288,227
Deferred fuel costs	36,046	143,279
Accumulated deferred income taxes	0	21,533
Fuel inventory - at average cost	50,758	50,898
Materials and supplies - at average cost	169,101	162,792
Deferred nuclear refueling outage costs	49,332	29,690
Prepayments and other	24,875	9,588
TOTAL	820,938	928,608
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	746,526	769,883
Other	12,842	14,170
TOTAL	759,368	784,053
PROPERTY, PLANT, AND EQUIPMENT
Electric	9,436,493	9,139,181
Property under capital lease	875	961
Construction work in progress	331,352	284,322
Nuclear fuel	285,488	293,695
TOTAL PROPERTY, PLANT, AND EQUIPMENT	10,054,208	9,718,159
Less - accumulated depreciation and amortization	4,328,022	4,191,959
PROPERTY, PLANT, AND EQUIPMENT - NET	5,726,186	5,526,200
Regulatory assets:
Regulatory asset for income taxes - net	62,326	64,214
Other regulatory assets	1,357,681	1,391,276
Deferred fuel costs	66,634	65,900
Other	47,024	47,674
TOTAL	1,533,665	1,569,064
TOTAL ASSETS	8,840,157	8,807,925
CURRENT LIABILITIES
Currently maturing long-term debt	55,000	0
Short-term borrowings	37,240	47,968
Associated companies accounts payable	51,871	56,078
Other	179,038	174,998
Customer deposits	117,515	115,647
Taxes accrued	58,828	24,240
Accumulated deferred income taxes	27,876	15,009
Interest accrued	24,446	20,250
Other	52,431	27,872
TOTAL	604,245	482,062
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	1,964,251	1,997,983
Accumulated deferred investment tax credits	36,807	37,708
Other regulatory liabilities	232,811	254,036
Decommissioning and asset retirement cost liabilities	859,440	818,351
Accumulated provisions	6,186	5,689
Pension and other postretirement liabilities	474,255	571,870
Long-term debt	2,610,002	2,671,343
Other	21,676	28,296
TOTAL	6,205,428	6,385,276
Subsidiaries' preferred stock without sinking fund	116,350	116,350
Common Shareholders' Equity:
Common stock	470	470
Paid-in capital	588,471	588,471
Retained earnings	1,325,193	1,235,296
TOTAL	1,914,134	1,824,237
TOTAL LIABILITIES AND EQUITY	8,840,157	8,807,925
Entergy Louisiana [Member]
Cash and cash equivalents:
Cash	2,597	431
Temporary cash investments	238,342	157,122
Total cash and cash equivalents	240,939	157,553
Accounts receivable:
Customer	184,011	124,125
Allowance for doubtful accounts	(3,270)	(984)
Associated companies	64,606	48,474
Other	17,184	9,150
Accrued unbilled revenues	104,309	88,673
Total accounts receivable	366,840	269,438
Accumulated deferred income taxes	0	74,558
Fuel inventory - at average cost	24,813	30,951
Materials and supplies - at average cost	166,363	154,295
Deferred nuclear refueling outage costs	7,947	23,067
Prepayments and other	38,747	24,962
TOTAL	845,649	734,824
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	1,034,695	1,034,696
Decommissioning trust funds	376,448	383,615
Non-utility property - at cost (less accumulated depreciation)	78	214
Notes receivable Entergy New Orleans	25,500	0
Escrow accounts	200,193	200,053
TOTAL	1,636,914	1,618,578
PROPERTY, PLANT, AND EQUIPMENT
Electric	9,782,539	9,627,495
Property under capital lease	334,716	334,716
Construction work in progress	225,939	241,923
Nuclear fuel	189,442	162,721
TOTAL PROPERTY, PLANT, AND EQUIPMENT	10,532,636	10,366,855
Less - accumulated depreciation and amortization	4,058,990	3,942,916
PROPERTY, PLANT, AND EQUIPMENT - NET	6,473,646	6,423,939
Regulatory assets:
Regulatory asset for income taxes - net	319,885	324,555
Other regulatory assets	859,152	914,229
Deferred fuel costs	67,998	67,998
Other	44,953	45,182
TOTAL	1,291,988	1,351,964
TOTAL ASSETS	10,248,197	10,129,305
CURRENT LIABILITIES
Currently maturing long-term debt	28,772	19,525
Short-term borrowings	66,653	46,033
Associated companies accounts payable	70,041	74,692
Other	141,087	164,329
Customer deposits	91,639	93,010
Taxes accrued	94,178	860
Accumulated deferred income taxes	5,805	0
Interest accrued	40,725	44,372
Deferred fuel costs	24,082	50,432
Other	49,835	48,250
TOTAL	612,817	541,503
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	1,484,567	1,406,507
Accumulated deferred investment tax credits	62,918	64,771
Other regulatory liabilities	516,964	546,084
Decommissioning and asset retirement cost liabilities	523,053	503,734
Accumulated provisions	208,508	212,243
Pension and other postretirement liabilities	496,139	530,844
Long-term debt	3,299,254	3,337,054
Other	66,527	70,141
TOTAL	6,657,930	6,671,378
Common Shareholders' Equity:
Accumulated other comprehensive loss	(25,970)	(25,876)
Subsidiaries' preferred stock without sinking fund	0	100,000
Members' Equity	3,003,420	2,842,300
TOTAL	2,977,450	2,916,424
TOTAL LIABILITIES AND EQUITY	10,248,197	10,129,305
Entergy Mississippi [Member]
Cash and cash equivalents:
Cash	1,104	1,223
Temporary cash investments	193,359	60,410
Total cash and cash equivalents	194,463	61,633
Accounts receivable:
Customer	91,119	78,593
Allowance for doubtful accounts	(961)	(873)
Associated companies	16,960	21,233
Other	9,894	42,009
Accrued unbilled revenues	53,380	43,374
Total accounts receivable	170,392	184,336
Accumulated deferred income taxes	4,611	5,198
Fuel inventory - at average cost	49,363	42,736
Materials and supplies - at average cost	38,691	37,741
Prepayments and other	12,133	7,315
TOTAL	469,653	338,959
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	4,629	4,642
Escrow accounts	41,716	41,752
TOTAL	46,345	46,394
PROPERTY, PLANT, AND EQUIPMENT
Electric	4,039,527	3,999,918
Property under capital lease	3,261	4,185
Construction work in progress	78,359	67,514
TOTAL PROPERTY, PLANT, AND EQUIPMENT	4,121,147	4,071,617
Less - accumulated depreciation and amortization	1,516,730	1,516,540
PROPERTY, PLANT, AND EQUIPMENT - NET	2,604,417	2,555,077
Regulatory assets:
Regulatory asset for income taxes - net	42,844	49,306
Other regulatory assets	325,193	364,747
Other	17,892	19,121
TOTAL	385,929	433,174
TOTAL ASSETS	3,506,344	3,373,604
CURRENT LIABILITIES
Currently maturing long-term debt	125,000	0
Associated companies accounts payable	36,617	49,832
Other	58,591	63,300
Customer deposits	81,010	77,753
Taxes accrued	105,767	53,565
Interest accrued	17,931	23,172
Deferred fuel costs	83,278	2,194
Other	23,584	17,533
TOTAL	531,778	287,349
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	781,728	800,374
Accumulated deferred investment tax credits	10,658	6,370
Decommissioning and asset retirement cost liabilities	8,139	6,786
Accumulated provisions	48,472	50,142
Pension and other postretirement liabilities	112,814	135,156
Long-term debt	933,931	1,058,838
Other	16,854	16,038
TOTAL	1,912,596	2,073,704
Subsidiaries' preferred stock without sinking fund	50,381	50,381
Common Shareholders' Equity:
Common stock	199,326	199,326
Paid-in capital	(690)	(690)
Retained earnings	812,953	763,534
TOTAL	1,011,589	962,170
TOTAL LIABILITIES AND EQUITY	3,506,344	3,373,604
Entergy New Orleans [Member]
Cash and cash equivalents:
Cash	768	1,006
Temporary cash investments	20,505	41,383
Total cash and cash equivalents	21,273	42,389
Securitization recovery trust account	1,434	0
Accounts receivable:
Customer	48,198	38,500
Allowance for doubtful accounts	(429)	(262)
Associated companies	12,777	11,693
Other	1,861	3,223
Accrued unbilled revenues	20,118	18,531
Total accounts receivable	82,525	71,685
Accumulated deferred income taxes	6,208	8,562
Fuel inventory - at average cost	1,721	3,016
Materials and supplies - at average cost	13,169	12,650
Prepaid taxes	0	1,644
Prepayments and other	13,345	5,448
TOTAL	139,675	145,394
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	1,016	1,016
Escrow accounts	86,825	18,038
TOTAL	87,841	19,054
PROPERTY, PLANT, AND EQUIPMENT
Electric	1,043,768	1,028,251
Natural gas	233,744	228,979
Construction work in progress	23,073	18,866
TOTAL PROPERTY, PLANT, AND EQUIPMENT	1,300,585	1,276,096
Less - accumulated depreciation and amortization	649,899	625,222
PROPERTY, PLANT, AND EQUIPMENT - NET	650,686	650,874
Regulatory assets:
Other regulatory assets	278,288	194,851
Deferred fuel costs	4,080	4,080
Other	8,705	5,345
TOTAL	291,073	204,276
TOTAL ASSETS	1,169,275	1,019,598
CURRENT LIABILITIES
Associated companies accounts payable	39,674	33,170
Other	26,349	22,435
Customer deposits	28,247	26,848
Taxes accrued	11,960	0
Interest accrued	3,352	3,639
Deferred fuel costs	34,032	29,203
Other	8,649	6,994
TOTAL	152,263	122,289
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	212,597	199,241
Accumulated deferred investment tax credits	791	904
Regulatory liability for income taxes - net	13,297	19,275
Decommissioning and asset retirement cost liabilities	2,642	2,511
Accumulated provisions	90,356	25,877
Pension and other postretirement liabilities	48,441	62,440
Long-term debt	324,577	225,866
Gas system rebuild insurance proceeds	15,609	23,218
Long-term payable due to Entergy Louisiana	25,500	82,316
Other	4,223	7,856
TOTAL	738,033	649,504
Subsidiaries' preferred stock without sinking fund	19,780	19,780
Common Shareholders' Equity:
Common stock	33,744	33,744
Paid-in capital	36,294	36,294
Retained earnings	189,161	157,987
TOTAL	259,199	228,025
TOTAL LIABILITIES AND EQUITY	1,169,275	1,019,598
Entergy Texas [Member]
Cash and cash equivalents:
Cash	1,441	1,733
Temporary cash investments	3,739	28,708
Total cash and cash equivalents	5,180	30,441
Securitization recovery trust account	33,274	37,219
Accounts receivable:
Customer	87,263	70,993
Allowance for doubtful accounts	(707)	(672)
Associated companies	56,189	57,004
Other	12,631	10,985
Accrued unbilled revenues	43,233	38,363
Total accounts receivable	198,609	176,673
Deferred fuel costs	18,385	11,861
Accumulated deferred income taxes	7,380	669
Fuel inventory - at average cost	53,000	49,902
Materials and supplies - at average cost	37,207	33,892
Prepayments and other	23,827	29,211
TOTAL	376,862	369,868
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	633	655
Non-utility property - at cost (less accumulated depreciation)	376	376
Other	19,949	19,085
TOTAL	20,958	20,116
PROPERTY, PLANT, AND EQUIPMENT
Electric	3,929,465	3,761,847
Construction work in progress	135,935	125,425
TOTAL PROPERTY, PLANT, AND EQUIPMENT	4,065,400	3,887,272
Less - accumulated depreciation and amortization	1,508,255	1,454,701
PROPERTY, PLANT, AND EQUIPMENT - NET	2,557,145	2,432,571
Regulatory assets:
Regulatory asset for income taxes - net	115,009	123,407
Other regulatory assets	843,171	922,087
Long-term receivables - associated companies	24,948	26,156
Other	17,011	13,880
TOTAL	1,000,139	1,085,530
TOTAL ASSETS	3,955,104	3,908,085
CURRENT LIABILITIES
Currently maturing long-term debt	0	200,000
Associated companies accounts payable	89,134	91,481
Other	74,926	87,910
Customer deposits	43,701	44,308
Taxes accrued	88,210	1,849
Interest accrued	22,585	29,757
Other	12,183	18,238
TOTAL	330,739	473,543
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	994,395	1,046,618
Accumulated deferred investment tax credits	14,060	14,735
Other regulatory liabilities	5,678	5,125
Decommissioning and asset retirement cost liabilities	5,462	4,610
Accumulated provisions	8,340	12,218
Pension and other postretirement liabilities	88,552	111,011
Long-term debt	1,475,105	1,278,931
Other	66,147	69,463
TOTAL	2,657,739	2,542,711
Common Shareholders' Equity:
Common stock	49,452	49,452
Paid-in capital	481,994	481,994
Retained earnings	435,180	360,385
TOTAL	966,626	891,831
TOTAL LIABILITIES AND EQUITY	3,955,104	3,908,085
System Energy [Member]
Cash and cash equivalents:
Cash	885	789
Temporary cash investments	153,194	222,390
Total cash and cash equivalents	154,079	223,179
Accounts receivable:
Associated companies	54,314	60,907
Other	5,513	5,717
Total accounts receivable	59,827	66,624
Materials and supplies - at average cost	86,562	80,049
Deferred nuclear refueling outage costs	10,146	26,580
Prepaid taxes	136,644	0
Prepayments and other	14,943	2,312
TOTAL	462,201	398,744
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	674,211	679,840
TOTAL	674,211	679,840
PROPERTY, PLANT, AND EQUIPMENT
Electric	4,251,489	4,244,902
Property under capital lease	573,784	573,784
Construction work in progress	84,879	50,382
Nuclear fuel	180,523	251,376
TOTAL PROPERTY, PLANT, AND EQUIPMENT	5,090,675	5,120,444
Less - accumulated depreciation and amortization	2,926,427	2,819,688
PROPERTY, PLANT, AND EQUIPMENT - NET	2,164,248	2,300,756
Regulatory assets:
Regulatory asset for income taxes - net	100,626	105,882
Other regulatory assets	345,014	335,613
Other	7,497	9,251
TOTAL	453,137	450,746
TOTAL ASSETS	3,753,797	3,830,086
CURRENT LIABILITIES
Currently maturing long-term debt	2	76,310
Short-term borrowings	14,568	20,404
Associated companies accounts payable	6,500	6,252
Other	26,598	33,096
Taxes accrued	0	23,267
Accumulated deferred income taxes	7,769	14,175
Interest accrued	15,674	33,196
Other	2,365	2,365
TOTAL	73,476	209,065
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	990,199	808,171
Accumulated deferred investment tax credits	50,230	49,313
Other regulatory liabilities	322,855	371,110
Decommissioning and asset retirement cost liabilities	793,613	757,918
Pension and other postretirement liabilities	111,393	129,152
Long-term debt	599,652	634,496
Other	2	350
TOTAL	2,867,944	2,750,510
Common Shareholders' Equity:
Common stock	789,350	789,350
Retained earnings	23,027	81,161
TOTAL	812,377	870,511
TOTAL LIABILITIES AND EQUITY	$ 3,753,797	$ 3,830,086