Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Cash and cash equivalents:
Cash	$ 102,949	$ 112,992
Temporary cash investments	262,383	419,577
Total cash and cash equivalents	365,332	532,569
Securitization recovery trust account	49,741	46,040
Accounts receivable:
Customer	753,033	568,871
Allowance for doubtful accounts	(33,482)	(31,956)
Other	170,620	161,408
Accrued unbilled revenues	377,588	303,392
Total accounts receivable	1,267,759	1,001,715
Deferred fuel costs	119,338	150,363
Accumulated deferred income taxes	84,059	306,902
Fuel inventory - at average cost	197,409	213,831
Materials and supplies - at average cost	906,119	928,530
Deferred nuclear refueling outage costs	245,992	243,374
System agreement cost equalization	6,256	16,880
Prepayments and other	247,585	242,922
TOTAL	3,489,590	3,683,126
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	44,418	46,738
Decommissioning trust funds	4,627,774	4,190,108
Non-utility property - at cost (less accumulated depreciation)	260,076	256,039
Other	185,959	436,234
TOTAL	5,118,227	4,929,119
PROPERTY, PLANT AND EQUIPMENT
Electric	42,662,320	41,944,567
Property under capital lease	933,058	935,199
Natural gas	361,441	353,492
Construction work in progress	1,599,127	1,365,699
Nuclear fuel	1,560,176	1,598,430
TOTAL PROPERTY, PLANT AND EQUIPMENT	47,116,122	46,197,387
Less - accumulated depreciation and amortization	19,548,683	18,898,842
PROPERTY, PLANT AND EQUIPMENT - NET	27,567,439	27,298,545
Regulatory assets:
Regulatory asset for income taxes - net	860,169	742,030
Other regulatory assets	4,750,482	5,025,912
Deferred fuel costs	172,202	172,202
Goodwill	377,172	377,172
Accumulated deferred income taxes	66,349	37,748
Other	922,496	936,648
TOTAL	7,148,870	7,291,712
TOTAL ASSETS	43,324,126	43,202,502
CURRENT LIABILITIES
Currently maturing long-term debt	206,260	718,516
Notes payable	1,106,039	796,002
Accounts payable	900,131	1,217,180
Customer deposits	366,151	359,078
Taxes accrued	327,569	333,719
Accumulated deferred income taxes	35,095	13,109
Interest accrued	159,078	184,664
Deferred fuel costs	21,995	96,439
Obligations under capital leases	2,717	3,880
Pension and other postretirement liabilities	53,822	95,900
System agreement cost equalization	6,256	25,848
Other	253,915	261,986
TOTAL	3,439,028	4,106,321
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	8,330,667	8,311,756
Accumulated deferred investment tax credits	266,547	273,696
Obligations under capital leases	32,814	34,541
Other regulatory liabilities	1,189,579	898,614
Decommissioning trust fund	3,702,881	3,513,634
Accumulated provisions	115,507	362,226
Pension and other postretirement liabilities	3,719,150	3,725,886
Long-term debt	12,275,492	11,920,318
Other	563,499	577,910
TOTAL	30,196,136	29,618,581
Subsidiaries' preferred stock without sinking fund	186,511	186,511
Common Shareholders' Equity:
Common stock	2,548	2,548
Paid-in capital	5,362,424	5,357,852
Retained earnings	9,825,653	9,704,591
Accumulated other comprehensive loss	(243,530)	(293,083)
Less - treasury stock, at cost	5,538,644	5,574,819
Total common shareholders' equity	9,408,451	9,197,089
Subsidiaries' preferred stock without sinking fund	94,000	94,000
TOTAL	9,502,451	9,291,089
TOTAL LIABILITIES AND EQUITY	43,324,126	43,202,502
Entergy Arkansas [Member]
Cash and cash equivalents:
Cash	3,342	9,597
Temporary cash investments	41,721	24,936
Total cash and cash equivalents	45,063	34,533
Securitization recovery trust account	7,896	4,403
Accounts receivable:
Customer	130,206	98,036
Allowance for doubtful accounts	(28,736)	(28,343)
Associated companies	127,571	67,277
Other	71,310	71,956
Accrued unbilled revenues	97,036	72,902
Total accounts receivable	397,387	281,828
Deferred fuel costs	70,633	97,305
Accumulated deferred income taxes	234	72,196
Fuel inventory - at average cost	32,235	48,975
Materials and supplies - at average cost	151,418	148,682
Deferred nuclear refueling outage costs	41,332	38,410
System agreement cost equalization	0	0
Prepaid taxes	7,149	0
Prepayments and other	61,281	10,586
TOTAL	814,628	736,918
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	669,770	600,578
Non-utility property - at cost (less accumulated depreciation)	1,666	1,671
Other	41,182	41,182
TOTAL	712,618	643,431
PROPERTY, PLANT AND EQUIPMENT
Electric	8,883,551	8,693,659
Property under capital lease	1,088	1,154
Construction work in progress	166,903	205,982
Nuclear fuel	284,280	303,825
TOTAL PROPERTY, PLANT AND EQUIPMENT	9,335,822	9,204,620
Less - accumulated depreciation and amortization	4,174,124	4,104,882
PROPERTY, PLANT AND EQUIPMENT - NET	5,161,698	5,099,738
Regulatory assets:
Regulatory asset for income taxes - net	75,286	80,751
Other regulatory assets	1,224,586	1,221,636
Other	41,779	36,971
TOTAL	1,341,651	1,339,358
TOTAL ASSETS	8,030,595	7,819,445
CURRENT LIABILITIES
Currently maturing long-term debt	70,000	330,000
Short-term borrowings	20,133	36,735
Associated companies accounts payable	49,802	39,288
Other	140,144	200,964
Customer deposits	85,760	85,198
Taxes accrued	0	214,969
Accumulated deferred income taxes	9,794	5,927
Interest accrued	18,658	28,418
Other	63,720	45,208
TOTAL	458,011	986,707
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	1,859,020	1,829,281
Accumulated deferred investment tax credits	39,456	40,947
Other regulatory liabilities	191,842	143,901
Decommissioning trust fund	712,756	680,712
Accumulated provisions	6,022	5,822
Pension and other postretirement liabilities	589,362	614,805
Long-term debt	2,342,168	1,793,895
Other	18,368	27,409
TOTAL	5,758,994	5,136,772
Subsidiaries' preferred stock without sinking fund	116,350	116,350
Common Shareholders' Equity:
Common stock	470	470
Paid-in capital	588,444	588,444
Retained earnings	1,108,326	990,702
TOTAL	1,697,240	1,579,616
TOTAL LIABILITIES AND EQUITY	8,030,595	7,819,445
Entergy Gulf States Louisiana [Member]
Cash and cash equivalents:
Cash	152	35,085
Temporary cash investments	618	601
Total cash and cash equivalents	770	35,686
Accounts receivable:
Customer	84,146	53,480
Allowance for doubtful accounts	(793)	(711)
Associated companies	91,548	71,697
Other	17,856	18,736
Accrued unbilled revenues	61,614	51,586
Total accounts receivable	254,371	194,788
Deferred fuel costs	7,919	0
Fuel inventory - at average cost	28,835	26,967
Materials and supplies - at average cost	122,664	121,289
Deferred nuclear refueling outage costs	31,598	5,953
Gas hedge contracts	0	0
Prepaid taxes	40,269	0
Prepayments and other	7,692	7,911
TOTAL	494,118	392,594
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	289,664	289,664
Decommissioning trust funds	537,624	477,391
Non-utility property - at cost (less accumulated depreciation)	172,098	165,410
Escrow accounts	21,534	86,984
Other	14,046	13,404
TOTAL	1,034,966	1,032,853
PROPERTY, PLANT AND EQUIPMENT
Electric	7,388,971	7,279,953
Natural gas	141,912	135,723
Construction work in progress	127,322	125,448
Nuclear fuel	208,839	146,768
TOTAL PROPERTY, PLANT AND EQUIPMENT	7,867,044	7,687,892
Less - accumulated depreciation and amortization	4,076,376	4,003,385
PROPERTY, PLANT AND EQUIPMENT - NET	3,790,668	3,684,507
Regulatory assets:
Regulatory asset for income taxes - net	171,006	171,051
Other regulatory assets	377,944	409,653
Deferred fuel costs	100,124	100,124
Other	13,611	12,337
TOTAL	662,685	693,165
TOTAL ASSETS	5,982,437	5,803,119
CURRENT LIABILITIES
Currently maturing long-term debt	0	75,000
Associated companies accounts payable	162,647	89,377
Other	80,160	97,509
Customer deposits	51,348	48,265
Taxes accrued	0	21,021
Accumulated deferred income taxes	48,902	22,249
Interest accrued	30,739	25,437
Deferred fuel costs	0	948
Pension and other postretirement liabilities	8,120	7,803
Gas hedge contracts	1,261	2,620
Other	13,047	11,999
TOTAL	396,224	402,228
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	1,463,685	1,403,195
Accumulated deferred investment tax credits	76,049	78,312
Other regulatory liabilities	143,209	103,444
Decommissioning trust fund	397,399	380,822
Accumulated provisions	37,025	97,230
Pension and other postretirement liabilities	420,780	416,220
Long-term debt	1,543,608	1,442,429
Long-term payables of associated companies	28,168	29,510
Other	91,381	66,725
TOTAL	4,201,304	4,017,887
Common Shareholders' Equity:
Accumulated other comprehensive loss	(62,349)	(65,229)
Total common shareholders' equity	1,437,258	1,438,233
Subsidiaries' preferred stock without sinking fund	10,000	10,000
TOTAL	1,384,909	1,383,004
TOTAL LIABILITIES AND EQUITY	5,982,437	5,803,119
Entergy Louisiana [Member]
Cash and cash equivalents:
Cash	350	814
Temporary cash investments	40,542	29,272
Total cash and cash equivalents	40,892	30,086
Securitization recovery trust account	10,467	4,382
Accounts receivable:
Customer	182,711	86,072
Allowance for doubtful accounts	(1,413)	(867)
Associated companies	98,222	42,938
Other	9,022	9,354
Accrued unbilled revenues	101,941	79,354
Total accounts receivable	390,483	216,851
Deferred fuel costs	4,118	26,568
Accumulated deferred income taxes	103,399	113,319
Fuel inventory - at average cost	22,591	23,583
Materials and supplies - at average cost	154,104	152,170
Deferred nuclear refueling outage costs	22,349	44,457
Gas hedge contracts	0	0
Prepaid taxes	45,427	7,937
Prepayments and other	11,926	12,129
TOTAL	805,756	631,482
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	807,423	807,423
Decommissioning trust funds	325,443	287,418
Non-utility property - at cost (less accumulated depreciation)	442	578
Escrow accounts	0	186,985
TOTAL	1,133,308	1,282,404
PROPERTY, PLANT AND EQUIPMENT
Electric	8,699,613	8,603,319
Property under capital lease	324,440	324,440
Construction work in progress	647,527	404,714
Nuclear fuel	170,203	204,019
TOTAL PROPERTY, PLANT AND EQUIPMENT	9,841,783	9,536,492
Less - accumulated depreciation and amortization	3,720,317	3,590,146
PROPERTY, PLANT AND EQUIPMENT - NET	6,121,466	5,946,346
Regulatory assets:
Regulatory asset for income taxes - net	310,672	193,114
Other regulatory assets	815,487	913,562
Deferred fuel costs	67,998	67,998
Other	45,677	39,178
TOTAL	1,239,834	1,213,852
TOTAL ASSETS	9,300,364	9,074,084
CURRENT LIABILITIES
Currently maturing long-term debt	70,231	14,236
Short-term borrowings	24,296	54,657
Associated companies accounts payable	90,733	103,454
Other	127,342	266,904
Customer deposits	89,375	88,805
Taxes accrued		0
Accumulated deferred income taxes	3,865	0
Interest accrued	38,791	37,264
Deferred fuel costs	0	0
Pension and other postretirement liabilities	9,421	9,170
System agreement cost equalization	0	0
Gas hedge contracts	1,408	3,442
Other	16,211	13,382
TOTAL	471,673	591,314
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	1,112,480	930,606
Accumulated deferred investment tax credits	68,059	70,193
Other regulatory liabilities	523,130	376,801
Decommissioning trust fund	434,228	418,122
Accumulated provisions	8,832	196,474
Pension and other postretirement liabilities	541,303	539,703
Long-term debt	3,159,085	2,811,859
Other	78,751	68,516
TOTAL	5,925,868	5,412,274
Common Shareholders' Equity:
Accumulated other comprehensive loss	(44,087)	(46,132)
Total common shareholders' equity	2,846,910	3,016,628
Subsidiaries' preferred stock without sinking fund	100,000	100,000
TOTAL	2,902,823	3,070,496
TOTAL LIABILITIES AND EQUITY	9,300,364	9,074,084
Entergy Mississippi [Member]
Cash and cash equivalents:
Cash	1,082	585
Temporary cash investments	9	52,385
Total cash and cash equivalents	1,091	52,970
Accounts receivable:
Customer	89,316	49,836
Allowance for doubtful accounts	(1,071)	(910)
Associated companies	17,201	25,504
Other	7,330	11,072
Accrued unbilled revenues	49,585	43,045
Total accounts receivable	162,361	128,547
Deferred fuel costs	36,669	26,490
Accumulated deferred income taxes	2,084	44,027
Fuel inventory - at average cost	43,529	48,778
Materials and supplies - at average cost	40,101	40,331
Gas hedge contracts	0	0
Prepayments and other	4,712	5,329
TOTAL	290,547	346,472
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	4,677	4,698
Escrow accounts	61,794	61,836
TOTAL	66,471	66,534
PROPERTY, PLANT AND EQUIPMENT
Electric	3,800,355	3,708,743
Property under capital lease	6,038	8,112
Construction work in progress	75,900	62,876
TOTAL PROPERTY, PLANT AND EQUIPMENT	3,882,293	3,779,731
Less - accumulated depreciation and amortization	1,390,608	1,324,627
PROPERTY, PLANT AND EQUIPMENT - NET	2,491,685	2,455,104
Regulatory assets:
Regulatory asset for income taxes - net	61,238	63,614
Other regulatory assets	395,694	401,471
Other	19,579	20,832
TOTAL	476,511	485,917
TOTAL ASSETS	3,325,214	3,354,027
CURRENT LIABILITIES
Currently maturing long-term debt	0	100,000
Short-term borrowings	17	21
Associated companies accounts payable	67,981	42,377
Other	51,063	44,856
Customer deposits	73,266	71,182
Taxes accrued	40,982	52,327
Accumulated deferred income taxes	3,333	218
Interest accrued	20,186	18,226
Other	29,401	21,490
TOTAL	286,229	350,697
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	754,316	761,812
Accumulated deferred investment tax credits	8,220	7,257
Obligations under capital leases	4,479	5,329
Other regulatory liabilities	1,647	1,235
Decommissioning trust fund	6,309	6,039
Accumulated provisions	35,588	35,820
Pension and other postretirement liabilities	155,422	160,866
Long-term debt	1,069,627	1,069,519
Other	16,170	25,426
TOTAL	2,051,778	2,073,303
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	738,190	681,010
TOTAL	936,826	879,646
TOTAL LIABILITIES AND EQUITY	3,325,214	3,354,027
Entergy New Orleans
Cash and cash equivalents:
Cash	1,117	319
Temporary cash investments	14,386	9,072
Total cash and cash equivalents	15,503	9,391
Accounts receivable:
Customer	47,901	33,142
Allowance for doubtful accounts	(573)	(446)
Associated companies	31,592	29,326
Other	2,357	3,115
Accrued unbilled revenues	18,408	18,124
Total accounts receivable	99,685	83,261
Accumulated deferred income taxes	6,257	9,517
Fuel inventory - at average cost	3,546	1,777
Materials and supplies - at average cost	11,242	10,889
Prepaid taxes	0	1,377
Prepayments and other	6,404	3,201
TOTAL	142,637	119,413
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	1,016	1,016
Escrow accounts	8,684	10,605
TOTAL	9,700	11,621
PROPERTY, PLANT AND EQUIPMENT
Electric	878,648	860,358
Natural gas	219,529	217,769
Construction work in progress	26,572	11,135
TOTAL PROPERTY, PLANT AND EQUIPMENT	1,124,749	1,089,262
Less - accumulated depreciation and amortization	560,085	549,587
PROPERTY, PLANT AND EQUIPMENT - NET	564,664	539,675
Regulatory assets:
Other regulatory assets	188,088	202,003
Deferred fuel costs	4,080	4,080
Other	6,690	4,997
TOTAL	198,858	211,080
TOTAL ASSETS	915,859	881,789
CURRENT LIABILITIES
Currently maturing long-term debt	0	70,000
Short-term borrowings	0	0
Associated companies accounts payable	32,646	28,778
Other	26,742	31,209
Customer deposits	22,422	21,974
Taxes accrued	3,125	0
Interest accrued	2,754	3,020
Deferred fuel costs	21,265	2,157
System agreement cost equalization	6,256	16,880
Other	7,398	3,479
TOTAL	122,608	177,497
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	172,340	172,790
Accumulated deferred investment tax credits	1,136	1,300
Regulatory liability for income taxes - net	8,417	24,291
Other regulatory liabilities	23,867	11,060
Decommissioning trust fund	2,307	2,193
Accumulated provisions	13,160	15,031
Pension and other postretirement liabilities	81,209	83,790
Long-term debt	225,942	126,300
Gas system rebuild insurance proceeds	34,820	44,207
Other	5,442	7,985
TOTAL	568,640	488,947
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	134,793	125,527
TOTAL	204,831	195,565
TOTAL LIABILITIES AND EQUITY	915,859	881,789
Entergy Texas [Member]
Cash and cash equivalents:
Cash	2,090	528
Temporary cash investments	19,653	59,708
Total cash and cash equivalents	21,743	60,236
Securitization recovery trust account	31,378	37,255
Accounts receivable:
Customer	85,202	53,836
Allowance for doubtful accounts	(894)	(680)
Associated companies	91,681	68,750
Other	15,247	10,450
Accrued unbilled revenues	48,677	38,252
Total accounts receivable	239,913	170,608
Deferred fuel costs	0	0
Accumulated deferred income taxes	0	34,988
Fuel inventory - at average cost	56,356	55,388
Materials and supplies - at average cost	30,020	32,853
System agreement cost equalization	6,256	16,880
Prepaid taxes	14,024	53,668
Prepayments and other	18,542	18,206
TOTAL	418,232	480,082
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	693	678
Non-utility property - at cost (less accumulated depreciation)	419	638
Other	18,025	17,263
TOTAL	19,137	18,579
PROPERTY, PLANT AND EQUIPMENT
Electric	3,554,829	3,475,776
Construction work in progress	106,817	90,469
TOTAL PROPERTY, PLANT AND EQUIPMENT	3,661,646	3,566,245
Less - accumulated depreciation and amortization	1,369,362	1,332,349
PROPERTY, PLANT AND EQUIPMENT - NET	2,292,284	2,233,896
Regulatory assets:
Regulatory asset for income taxes - net	129,645	131,287
Other regulatory assets	1,037,745	1,114,536
Long-term receivables - associated companies	28,168	29,510
Other	18,181	17,891
TOTAL	1,213,739	1,293,224
TOTAL ASSETS	3,943,392	4,025,781
CURRENT LIABILITIES
Associated companies accounts payable	103,312	88,743
Other	60,216	65,261
Customer deposits	38,437	38,859
Taxes accrued	0	0
Accumulated deferred income taxes	31,816	0
Interest accrued	22,976	32,166
Deferred fuel costs	730	93,334
Pension and other postretirement liabilities	805	853
System agreement cost equalization	0	8,968
Other	3,797	2,839
TOTAL	262,089	331,023
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	1,021,401	1,009,081
Accumulated deferred investment tax credits	16,546	17,743
Other regulatory liabilities	6,738	6,150
Decommissioning trust fund	4,286	4,103
Accumulated provisions	8,967	6,609
Pension and other postretirement liabilities	146,306	155,241
Long-term debt	1,567,566	1,617,813
Other	32,671	23,872
TOTAL	2,804,481	2,840,612
Common Shareholders' Equity:
Common stock	49,452	49,452
Paid-in capital	481,994	481,994
Retained earnings	345,376	322,700
TOTAL	876,822	854,146
TOTAL LIABILITIES AND EQUITY	3,943,392	4,025,781
System Energy [Member]
Cash and cash equivalents:
Cash	680	100
Temporary cash investments	3,132	83,522
Total cash and cash equivalents	3,812	83,622
Accounts receivable:
Associated companies	67,605	93,381
Other	4,593	5,904
Total accounts receivable	72,198	99,285
Accumulated deferred income taxes	21,792	74,331
Materials and supplies - at average cost	84,890	82,443
Deferred nuclear refueling outage costs	13,664	35,155
Prepaid taxes	37,744	0
Prepayments and other	4,102	2,080
TOTAL	238,202	376,916
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	563,428	490,572
TOTAL	563,428	490,572
PROPERTY, PLANT AND EQUIPMENT
Electric	4,003,015	3,987,672
Property under capital lease	569,355	569,355
Construction work in progress	42,870	40,392
Nuclear fuel	214,053	252,682
TOTAL PROPERTY, PLANT AND EQUIPMENT	4,829,293	4,850,101
Less - accumulated depreciation and amortization	2,665,585	2,568,862
PROPERTY, PLANT AND EQUIPMENT - NET	2,163,708	2,281,239
Regulatory assets:
Regulatory asset for income taxes - net	120,739	126,503
Other regulatory assets	322,114	330,074
Other	16,290	18,212
TOTAL	459,143	474,789
TOTAL ASSETS	3,424,481	3,623,516
CURRENT LIABILITIES
Currently maturing long-term debt	48,653	111,854
Short-term borrowings	46,517	39,986
Associated companies accounts payable	7,638	5,564
Other	24,936	44,433
Taxes accrued	0	181,477
Accumulated deferred income taxes	688	1,789
Interest accrued	15,492	15,619
Other	2,432	2,429
TOTAL	146,356	403,151
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	783,720	782,469
Accumulated deferred investment tax credits	55,427	56,188
Other regulatory liabilities	299,145	256,024
Decommissioning trust fund	504,735	478,371
Pension and other postretirement liabilities	137,726	142,617
Long-term debt	623,753	671,945
Other	45	22
TOTAL	2,404,551	2,387,636
Common Shareholders' Equity:
Common stock	789,350	789,350
Retained earnings	84,224	43,379
TOTAL	873,574	832,729
TOTAL LIABILITIES AND EQUITY	$ 3,424,481	$ 3,623,516