Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash and cash equivalents:
Cash	$ 131,327us-gaap_Cash	$ 129,979us-gaap_Cash
Temporary cash investments	1,290,699us-gaap_CashEquivalentsAtCarryingValue	609,147us-gaap_CashEquivalentsAtCarryingValue
Total cash and cash equivalents	1,422,026	739,126	532,569
Accounts receivable:
Customer	596,917us-gaap_AccountsReceivableGrossCurrent	670,641us-gaap_AccountsReceivableGrossCurrent
Allowance for doubtful accounts	(35,663)	(34,311)
Other	220,342us-gaap_OtherReceivables	195,028us-gaap_OtherReceivables
Accrued unbilled revenues	321,659etr_AccruedUnbilledRevenues	340,828etr_AccruedUnbilledRevenues
Total accounts receivable	1,103,255us-gaap_AccountsReceivableNetCurrent	1,172,186us-gaap_AccountsReceivableNetCurrent
Deferred fuel costs	155,140us-gaap_DeferredFuelCost	116,379us-gaap_DeferredFuelCost
Accumulated deferred income taxes	27,783us-gaap_DeferredTaxAssetsNetCurrent	175,073us-gaap_DeferredTaxAssetsNetCurrent
Fuel inventory - at average cost	205,434etr_FuelInventoryAtAverageCost	208,958etr_FuelInventoryAtAverageCost
Materials and supplies - at average cost	918,584us-gaap_OtherInventorySupplies	915,006us-gaap_OtherInventorySupplies
Deferred nuclear refueling outage costs	214,188etr_DeferredNuclearRefuelingOutageCosts	192,474etr_DeferredNuclearRefuelingOutageCosts
Prepayments and other	343,223us-gaap_OtherAssetsCurrent	410,489us-gaap_OtherAssetsCurrent
TOTAL	4,389,633us-gaap_AssetsCurrent	3,929,691us-gaap_AssetsCurrent
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	36,234us-gaap_EquityMethodInvestments	40,350us-gaap_EquityMethodInvestments	46,738us-gaap_EquityMethodInvestments
Decommissioning trust funds	5,370,932us-gaap_DecommissioningFundInvestments	4,903,144us-gaap_DecommissioningFundInvestments
Non-utility property - at cost (less accumulated depreciation)	213,791us-gaap_PropertyPlantAndEquipmentNet	199,375us-gaap_PropertyPlantAndEquipmentNet
Other	405,169us-gaap_OtherLongTermInvestments	210,616us-gaap_OtherLongTermInvestments
TOTAL	6,026,126us-gaap_LongTermInvestments	5,353,485us-gaap_LongTermInvestments
PROPERTY, PLANT, AND EQUIPMENT
Electric	44,881,419	42,935,712
Property under capital lease	945,784us-gaap_CapitalLeasedAssetsGross	941,299us-gaap_CapitalLeasedAssetsGross
Natural gas	377,565etr_NaturalGas	366,365etr_NaturalGas
Construction work in progress	1,425,981	1,514,857
Nuclear fuel	1,542,055us-gaap_NuclearFuelNetOfAmortization	1,566,904us-gaap_NuclearFuelNetOfAmortization
TOTAL PROPERTY, PLANT AND EQUIPMENT	49,172,804	47,325,137
Less - accumulated depreciation and amortization	20,449,858	19,443,493
PROPERTY, PLANT AND EQUIPMENT - NET	28,722,946	27,881,644
Regulatory assets:
Regulatory asset for income taxes - net	836,064etr_SfasRegulatoryAssetNet	849,718etr_SfasRegulatoryAssetNet
Other regulatory assets	4,968,553etr_OtherRegulatoryAssets	3,893,363etr_OtherRegulatoryAssets
Deferred fuel costs	238,102etr_DeferredFuelCosts	172,202etr_DeferredFuelCosts
Goodwill	377,172us-gaap_Goodwill	377,172us-gaap_Goodwill
Accumulated deferred income taxes	48,351us-gaap_DeferredTaxAssetsNetNoncurrent	62,011us-gaap_DeferredTaxAssetsNetNoncurrent
Other	920,907us-gaap_OtherAssetsNoncurrent	887,160us-gaap_OtherAssetsNoncurrent
TOTAL	7,389,149us-gaap_AssetsNoncurrent	6,241,626us-gaap_AssetsNoncurrent
TOTAL ASSETS	46,527,854us-gaap_Assets	43,406,446us-gaap_Assets
CURRENT LIABILITIES
Currently maturing long-term debt	899,375us-gaap_LongTermDebtCurrent	457,095us-gaap_LongTermDebtCurrent
Notes payable	598,407	1,046,887
Accounts payable	1,166,431us-gaap_AccountsPayableCurrent	1,173,313us-gaap_AccountsPayableCurrent
Customer deposits	412,166us-gaap_CustomerDepositsCurrent	370,997us-gaap_CustomerDepositsCurrent
Taxes accrued	128,108us-gaap_TaxesPayableCurrent	191,093us-gaap_TaxesPayableCurrent
Accumulated deferred income taxes	38,039us-gaap_DeferredTaxLiabilitiesCurrent	28,307us-gaap_DeferredTaxLiabilitiesCurrent
Interest accrued	206,010us-gaap_InterestPayableCurrent	180,997us-gaap_InterestPayableCurrent
Deferred fuel costs	91,602etr_DeferredFuelCostsCurrentLiabilities	57,631etr_DeferredFuelCostsCurrentLiabilities
Obligations under capital leases	2,508us-gaap_CapitalLeaseObligationsCurrent	2,323us-gaap_CapitalLeaseObligationsCurrent
Pension and other postretirement liabilities	57,994	67,419
Other	248,251us-gaap_OtherLiabilitiesCurrent	484,510us-gaap_OtherLiabilitiesCurrent
TOTAL	3,848,891us-gaap_LiabilitiesCurrent	4,060,572us-gaap_LiabilitiesCurrent
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	9,133,161	8,724,635
Accumulated deferred investment tax credits	247,521	263,765
Obligations under capital leases	29,710	32,218
Other regulatory liabilities	1,383,609us-gaap_RegulatoryLiabilityNoncurrent	1,295,955us-gaap_RegulatoryLiabilityNoncurrent
Decommissioning trust fund	4,458,296	3,933,416
Accumulated provisions	418,128us-gaap_AccruedLiabilitiesCurrent	115,139us-gaap_AccruedLiabilitiesCurrent
Pension and other postretirement liabilities	3,638,295	2,320,704
Long-term debt	12,500,109us-gaap_LongTermDebtNoncurrent	12,139,149us-gaap_LongTermDebtNoncurrent
Other	557,649us-gaap_OtherLiabilitiesNoncurrent	583,667us-gaap_OtherLiabilitiesNoncurrent
TOTAL	32,366,478us-gaap_LiabilitiesNoncurrent	29,408,648us-gaap_LiabilitiesNoncurrent
Commitments and Contingencies
Subsidiaries’ preferred stock without sinking fund	210,760	210,760
Common Shareholders’ Equity:
Common stock	2,548us-gaap_CommonStockValue	2,548us-gaap_CommonStockValue
Paid-in capital	5,375,353us-gaap_AdditionalPaidInCapital	5,368,131us-gaap_AdditionalPaidInCapital
Retained earnings	10,169,657	9,825,053
Accumulated other comprehensive loss	(42,307)	(29,324)	(293,083)
Less - treasury stock, at cost (76,681,936 shares in 2013 and 76,945,239 shares in 2012)	5,497,526us-gaap_TreasuryStockValue	5,533,942us-gaap_TreasuryStockValue
Total common shareholders’ equity	10,007,725us-gaap_StockholdersEquity	9,632,466us-gaap_StockholdersEquity
Subsidiaries’ preferred stock without sinking fund	94,000us-gaap_MinorityInterest	94,000us-gaap_MinorityInterest
TOTAL	10,101,725	9,726,466	9,291,089
TOTAL LIABILITIES AND EQUITY	46,527,854	43,406,446
Entergy Arkansas [Member]
Cash and cash equivalents:
Cash	10,526	4,181
Temporary cash investments	207,979	122,841
Total cash and cash equivalents	218,505	127,022	34,533
Securitization recovery trust account	4,096	3,835
Accounts receivable:
Customer	97,314	102,328
Allowance for doubtful accounts	(32,247)	(30,113)
Associated companies	32,187	68,875
Other	110,269	94,256
Accrued unbilled revenues	80,704	82,298
Total accounts receivable	288,227	317,644
Deferred fuel costs	143,279	68,696
Accumulated deferred income taxes	21,533	33,556
Fuel inventory - at average cost	50,898	41,504
Materials and supplies - at average cost	162,792	152,429
Deferred nuclear refueling outage costs	29,690	31,135
System agreement cost equalization	0	30,000
Prepayments and other	9,588	58,911
TOTAL	928,608	864,732
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	769,883	710,913
Other	14,170	30,845
TOTAL	784,053	741,758
PROPERTY, PLANT, AND EQUIPMENT
Electric	9,139,181	8,798,458
Property under capital lease	961	1,064
Construction work in progress	284,322	209,036
Nuclear fuel	293,695	321,901
TOTAL PROPERTY, PLANT AND EQUIPMENT	9,718,159	9,330,459
Less - accumulated depreciation and amortization	4,191,959	4,034,880
PROPERTY, PLANT AND EQUIPMENT - NET	5,526,200	5,295,579
Regulatory assets:
Regulatory asset for income taxes - net	64,214	73,864
Other regulatory assets	1,391,276	1,014,392
Deferred fuel costs	65,900	0
Other	47,674	44,565
TOTAL	1,569,064	1,132,821
Deferred fuel cost noncurrent	65,900
TOTAL ASSETS	8,807,925	8,034,890
CURRENT LIABILITIES
Currently maturing long-term debt	0	70,000
Short-term borrowings	47,968	0
Associated companies accounts payable	56,078	149,802
Other	174,998	228,160
Customer deposits	115,647	86,512
Taxes accrued	24,240	9,979
Accumulated deferred income taxes	15,009	9,231
Interest accrued	20,250	22,036
Other	27,872	55,656
TOTAL	482,062	631,376
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	1,997,983	1,906,562
Accumulated deferred investment tax credits	37,708	38,958
Other regulatory liabilities	254,036	219,370
Decommissioning trust fund	818,351	723,771
Accumulated provisions	5,689	5,746
Pension and other postretirement liabilities	571,870	319,211
Long-term debt	2,671,343	2,335,802
Other	28,296	18,026
TOTAL	6,385,276	5,567,446
Commitments and Contingencies
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	1,235,296	1,130,777
TOTAL	1,824,237	1,719,718	1,579,616
TOTAL LIABILITIES AND EQUITY	8,807,925	8,034,890
Entergy Gulf States Louisiana [Member]
Cash and cash equivalents:
Cash	53,394	1,739
Temporary cash investments	109,569	13,842
Total cash and cash equivalents	162,963	15,581	35,686
Accounts receivable:
Customer	67,006	69,648
Allowance for doubtful accounts	(625)	(909)
Associated companies	86,966	107,723
Other	18,379	22,945
Accrued unbilled revenues	54,079	58,867
Total accounts receivable	225,805	258,274
Deferred fuel costs	0	9,625
Fuel inventory - at average cost	16,207	26,555
Materials and supplies - at average cost	121,237	122,909
Deferred nuclear refueling outage costs	7,416	25,975
Prepayments and other	45,122	36,698
TOTAL	578,750	495,617
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	355,906	289,664
Decommissioning trust funds	637,744	573,744
Non-utility property - at cost (less accumulated depreciation)	193,407	174,134
Storm reserve escrow account	90,061	21,538
Other	14,887	14,145
TOTAL	1,292,005	1,073,225
PROPERTY, PLANT, AND EQUIPMENT
Electric	7,600,730	7,400,689
Natural gas	148,586	143,902
Construction work in progress	127,436	105,314
Nuclear fuel	131,901	196,508
TOTAL PROPERTY, PLANT AND EQUIPMENT	8,008,653	7,846,413
Less - accumulated depreciation and amortization	4,176,242	4,071,762
PROPERTY, PLANT AND EQUIPMENT - NET	3,832,411	3,774,651
Regulatory assets:
Regulatory asset for income taxes - net	161,714	165,456
Other regulatory assets	426,381	321,466
Deferred fuel costs	100,124	100,124
Other	12,438	12,049
TOTAL	700,657	599,095
Deferred fuel cost noncurrent	100,124	100,124
TOTAL ASSETS	6,403,823	5,942,588
CURRENT LIABILITIES
Currently maturing long-term debt	31,955	0
Associated companies accounts payable	102,933	95,853
Other	108,874	103,314
Customer deposits	56,749	51,839
Accumulated deferred income taxes	21,095	36,330
Interest accrued	27,075	25,808
Deferred fuel costs	10,580	0
Other	44,517	43,097
TOTAL	403,778	356,241
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	1,601,032	1,512,547
Accumulated deferred investment tax credits	72,277	75,295
Other regulatory liabilities	176,305	159,429
Decommissioning trust fund	446,619	403,084
Accumulated provisions	106,985	37,146
Pension and other postretirement liabilities	401,144	274,315
Long-term debt	1,590,862	1,527,465
Long-term payables of associated companies	26,156	27,900
Other	148,102	108,189
TOTAL	4,569,482	4,125,370
Commitments and Contingencies
Common Shareholders’ Equity:
Accumulated other comprehensive loss	(53,347)	(28,202)
Subsidiaries’ preferred stock without sinking fund	10,000	10,000
Members' Equity	1,473,910	1,479,179
TOTAL	1,430,563	1,460,977	1,383,004
TOTAL LIABILITIES AND EQUITY	6,403,823	5,942,588
Entergy Louisiana [Member]
Cash and cash equivalents:
Cash	431	427
Temporary cash investments	157,122	123,580
Total cash and cash equivalents	157,553	124,007	30,086
Accounts receivable:
Customer	124,125	144,836
Allowance for doubtful accounts	(984)	(965)
Associated companies	48,474	87,820
Other	9,150	21,420
Accrued unbilled revenues	88,673	93,073
Total accounts receivable	269,438	346,184
Accumulated deferred income taxes	74,558	100,022
Fuel inventory - at average cost	30,951	23,311
Materials and supplies - at average cost	154,295	156,487
Deferred nuclear refueling outage costs	23,067	13,670
Prepaid taxes	0	184,503
Prepayments and other	24,962	22,651
TOTAL	734,824	970,835
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	1,034,696	807,423
Decommissioning trust funds	383,615	347,274
Non-utility property - at cost (less accumulated depreciation)	214	396
Storm reserve escrow account	200,053	0
TOTAL	1,618,578	1,155,093
PROPERTY, PLANT, AND EQUIPMENT
Electric	9,627,495	8,799,393
Property under capital lease	334,716	331,895
Construction work in progress	241,923	672,883
Nuclear fuel	162,721	147,385
TOTAL PROPERTY, PLANT AND EQUIPMENT	10,366,855	9,951,556
Less - accumulated depreciation and amortization	3,942,916	3,763,234
PROPERTY, PLANT AND EQUIPMENT - NET	6,423,939	6,188,322
Regulatory assets:
Regulatory asset for income taxes - net	324,555	309,617
Other regulatory assets	914,229	715,503
Deferred fuel costs	67,998	67,998
Other	45,182	43,025
TOTAL	1,351,964	1,136,143
Deferred fuel cost noncurrent	67,998	67,998
TOTAL ASSETS	10,129,305	9,450,393
CURRENT LIABILITIES
Currently maturing long-term debt	19,525	320,231
Short-term borrowings	46,033	2,923
Associated companies accounts payable	74,692	83,655
Other	164,329	162,507
Customer deposits	93,010	90,393
Taxes accrued	860	0
Accumulated deferred income taxes	0	338
Interest accrued	44,372	42,072
Deferred fuel costs	50,432	30,392
Other	48,250	46,698
TOTAL	541,503	779,209
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	1,406,507	1,275,584
Accumulated deferred investment tax credits	64,771	67,347
Other regulatory liabilities	546,084	533,247
Decommissioning trust fund	503,734	479,086
Accumulated provisions	212,243	7,733
Pension and other postretirement liabilities	530,844	358,017
Long-term debt	3,337,054	2,899,285
Other	70,141	75,233
TOTAL	6,671,378	5,695,532
Commitments and Contingencies
Common Shareholders’ Equity:
Accumulated other comprehensive loss	(25,876)	(9,635)
Subsidiaries’ preferred stock without sinking fund	100,000	100,000
Members' Equity	2,842,300	2,885,287
TOTAL	2,916,424	2,975,652	3,070,496
TOTAL LIABILITIES AND EQUITY	10,129,305	9,450,393
Entergy Mississippi [Member]
Cash and cash equivalents:
Cash	1,223	22
Temporary cash investments	60,410	9
Total cash and cash equivalents	61,633	31	52,970
Accounts receivable:
Customer	78,593	76,534
Allowance for doubtful accounts	(873)	(906)
Associated companies	21,233	13,794
Other	42,009	9,117
Accrued unbilled revenues	43,374	44,777
Total accounts receivable	184,336	143,316
Deferred fuel costs	0	38,057
Accumulated deferred income taxes	5,198	0
Fuel inventory - at average cost	42,736	48,899
Materials and supplies - at average cost	37,741	40,849
Prepayments and other	7,315	19,813
TOTAL	338,959	290,965
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	4,642	4,670
Escrow accounts	41,752	51,795
TOTAL	46,394	56,465
PROPERTY, PLANT, AND EQUIPMENT
Electric	3,999,918	3,875,737
Property under capital lease	4,185	5,329
Construction work in progress	67,514	37,316
TOTAL PROPERTY, PLANT AND EQUIPMENT	4,071,617	3,918,382
Less - accumulated depreciation and amortization	1,516,540	1,413,484
PROPERTY, PLANT AND EQUIPMENT - NET	2,555,077	2,504,898
Regulatory assets:
Regulatory asset for income taxes - net	49,306	58,716
Other regulatory assets	364,747	318,462
Other	19,121	20,819
TOTAL	433,174	397,997
TOTAL ASSETS	3,373,604	3,250,325
CURRENT LIABILITIES
Currently maturing long-term debt	0	0
Associated companies accounts payable	49,832	74,144
Other	63,300	52,129
Customer deposits	77,753	74,211
Taxes accrued	53,565	53,247
Accumulated deferred income taxes	0	15,413
Interest accrued	23,172	20,383
Deferred fuel costs	2,194	0
Other	17,533	19,021
TOTAL	287,349	308,548
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	800,374	746,939
Accumulated deferred investment tax credits	6,370	8,530
Decommissioning trust fund	6,786	6,401
Accumulated provisions	50,142	35,674
Pension and other postretirement liabilities	135,156	66,722
Long-term debt	1,058,838	1,053,670
Other	16,038	21,883
TOTAL	2,073,704	1,939,819
Commitments and Contingencies
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	763,534	752,941
TOTAL	962,170	951,577	879,646
TOTAL LIABILITIES AND EQUITY	3,373,604	3,250,325
Entergy New Orleans [Member]
Cash and cash equivalents:
Cash	1,006	317
Temporary cash investments	41,383	33,172
Total cash and cash equivalents	42,389	33,489	9,391
Accounts receivable:
Customer	35,663	38,872
Allowance for doubtful accounts	(262)	(974)
Associated companies	11,693	32,273
Other	3,223	2,667
Accrued unbilled revenues	16,465	18,745
Total accounts receivable	66,782	91,583
Accumulated deferred income taxes	8,562	12,018
Fuel inventory - at average cost	3,016	2,999
Materials and supplies - at average cost	12,650	11,696
Prepayments and other	6,887	4,178
TOTAL	140,286	155,963
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	1,016	1,016
Storm reserve escrow account	18,038	10,513
TOTAL	19,054	11,529
PROPERTY, PLANT, AND EQUIPMENT
Electric	936,862	889,629
Natural gas	228,979	222,463
Construction work in progress	18,866	29,312
TOTAL PROPERTY, PLANT AND EQUIPMENT	1,184,707	1,141,404
Less - accumulated depreciation and amortization	594,945	566,948
PROPERTY, PLANT AND EQUIPMENT - NET	589,762	574,456
Regulatory assets:
Other regulatory assets	175,596	137,191
Deferred fuel costs	4,080	4,080
Other	5,345	5,577
TOTAL	185,021	146,848
Deferred fuel cost noncurrent	4,080	4,080
TOTAL ASSETS	934,123	888,796
CURRENT LIABILITIES
Currently maturing long-term debt	0	0
Associated companies accounts payable	33,170	36,193
Other	22,435	27,840
Customer deposits	24,681	22,959
Interest accrued	3,538	3,598
Deferred fuel costs	28,397	23,145
System agreement cost equalization	0	17,040
Other	6,830	5,896
TOTAL	119,051	136,671
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	199,241	183,636
Accumulated deferred investment tax credits	864	1,082
Regulatory liability for income taxes - net	20,640	28,711
Decommissioning trust fund	2,511	2,347
Accumulated provisions	25,877	15,000
Pension and other postretirement liabilities	62,440	32,497
Long-term debt	225,866	225,944
Gas system rebuild insurance proceeds	23,218	32,760
Other	6,610	4,085
TOTAL	567,267	526,062
Commitments and Contingencies
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	157,987	136,245
TOTAL	228,025	206,283	195,565
TOTAL LIABILITIES AND EQUITY	934,123	888,796
Entergy Texas [Member]
Cash and cash equivalents:
Cash	1,733	2,432
Temporary cash investments	28,708	44,056
Total cash and cash equivalents	30,441	46,488	60,236
Securitization recovery trust account	37,219	37,511
Accounts receivable:
Customer	70,993	76,957
Allowance for doubtful accounts	(672)	(443)
Associated companies	57,004	76,494
Other	10,985	10,897
Accrued unbilled revenues	38,363	43,067
Total accounts receivable	176,673	206,972
Deferred fuel costs	11,861	0
Accumulated deferred income taxes	669	0
Fuel inventory - at average cost	49,902	55,335
Materials and supplies - at average cost	33,892	34,068
Prepaid taxes	0	55,635
Prepayments and other	29,211	50,498
TOTAL	369,868	486,507
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	655	687
Non-utility property - at cost (less accumulated depreciation)	376	376
Other	19,085	18,161
TOTAL	20,116	19,224
PROPERTY, PLANT, AND EQUIPMENT
Electric	3,761,847	3,616,061
Construction work in progress	125,425	94,743
TOTAL PROPERTY, PLANT AND EQUIPMENT	3,887,272	3,710,804
Less - accumulated depreciation and amortization	1,454,701	1,387,303
PROPERTY, PLANT AND EQUIPMENT - NET	2,432,571	2,323,501
Regulatory assets:
Regulatory asset for income taxes - net	123,407	129,069
Other regulatory assets	922,087	919,234
Long-term receivables - associated companies	26,156	27,900
Other	13,880	16,425
TOTAL	1,085,530	1,092,628
TOTAL ASSETS	3,908,085	3,921,860
CURRENT LIABILITIES
Currently maturing long-term debt	200,000	0
Associated companies accounts payable	91,481	112,309
Other	87,910	73,682
Customer deposits	44,308	38,721
Taxes accrued	1,849	0
Accumulated deferred income taxes	0	33,847
Interest accrued	29,757	31,246
Deferred fuel costs	0	4,093
Other	18,238	36,276
TOTAL	473,543	330,174
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	1,046,618	1,022,955
Accumulated deferred investment tax credits	14,735	16,147
Other regulatory liabilities	5,125	5,194
Decommissioning trust fund	4,610	4,349
Accumulated provisions	12,218	9,079
Pension and other postretirement liabilities	111,011	51,253
Long-term debt	1,278,931	1,556,939
Other	69,463	38,743
TOTAL	2,542,711	2,704,659
Commitments and Contingencies
Common Shareholders’ Equity:
Common stock	49,452	49,452
Paid-in capital	481,994	481,994
Retained earnings	360,385	355,581
TOTAL	891,831	887,027	854,146
TOTAL LIABILITIES AND EQUITY	3,908,085	3,921,860
System Energy [Member]
Cash and cash equivalents:
Cash	789	62,561
Temporary cash investments	222,390	64,581
Total cash and cash equivalents	223,179	127,142	83,622
Accounts receivable:
Associated companies	60,907	104,419
Other	5,717	6,400
Total accounts receivable	66,624	110,819
Materials and supplies - at average cost	80,049	85,118
Deferred nuclear refueling outage costs	26,580	7,853
Prepayments and other	2,312	1,727
TOTAL	398,744	332,659
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	679,840	603,896
TOTAL	679,840	603,896
PROPERTY, PLANT, AND EQUIPMENT
Electric	4,244,902	4,124,647
Property under capital lease	573,784	570,872
Construction work in progress	50,382	29,061
Nuclear fuel	251,376	188,824

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Unbilled amounts due for services rendered or products shipped. This element is distinct from unbilled contracts receivables because this is based on noncontract transactions.

+ References

No definition available.

+ Details

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Deferred fuel cost noncurrent.

+ References

No definition available.

+ Details

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- Definition

Carrying amount as of the balance sheet date of capitalized fuel costs of a regulated entity that are not expected to be recovered from customers within one year.

+ References

No definition available.

+ Details

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Carrying amount as of the balance sheet date of capitalized fuel costs of a regulated entity that are expected to be returned to customers through rate adjustments within one year.

+ References

No definition available.

+ Details

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- Definition

Costs deferred during a nuclear refueling outage and amortized over the estimated period to the next outage because these refueling outage expenses are incurred to prepare the units to operate for the next operating cycle without having to be taken off line.

+ References

No definition available.

+ Details

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Escrow accounts

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No definition available.

+ Details

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- Definition

Fossil fuel inventory held for consumption in the production of energy.

+ References

No definition available.

+ Details

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Namespace Prefix:	etr_
Data Type:	xbrli:monetaryItemType
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- Definition

Gas system rebuild insurance proceeds.

+ References

No definition available.

+ Details

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Namespace Prefix:	etr_
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- Definition

Long-term payables of associated companies

+ References

No definition available.

+ Details

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Period end amount of property, plant and equipment (PPE) related to transmission and distribution of natural gas for resale owned by public utility.

+ References

No definition available.

+ Details

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Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer and are not specifically broken out elsewhere in the balance sheet.

+ References

No definition available.

+ Details

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- Details

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Regulatory liability for income taxes - net.

+ References

No definition available.

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SFAS Regulatory Asset Net

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No definition available.

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Storm reserve escrow account.

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No definition available.

+ Details

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- Definition

Carrying amount as of the balance sheet date of the System Agreement cost equalization payments that are expected to be recovered through Entergy Arkansas' production cost allocation rider within one year.

+ References

No definition available.

+ Details

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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

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Carrying value as of the balance sheet date of obligations incurred and payable, which are not elsewhere specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

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Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business.

+ References

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Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

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Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer.

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

+ Details

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- Definition

The noncurrent portion of the reserve for accumulated deferred investment tax credits as of the balance sheet date. This is the remaining investment credit, which will reduce the cost of services collected from ratepayers by a ratable portion over the investment's regulatory life.

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-Subparagraph (SX 210.5-02.26(b))

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- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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-Number 210

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-Article 3

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Namespace Prefix:	us-gaap_
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Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.

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-Name Regulation S-X (SX)

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A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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- Definition

Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

+ Details

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Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer.

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- Definition

Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

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Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

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-Name Regulation S-X (SX)

-Number 210

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

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Carrying amounts due as of the balance sheet date from parties or arising from transactions not otherwise specified in the taxonomy.

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For a classified balance sheet, the amount recognized in balance sheet as a current liability associated with an underfunded defined benefit plan.

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This represents the noncurrent liability for underfunded plans recognized in the balance sheet that is associated with the defined benefit pension plans and other postretirement defined benefit plans.

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Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Period end book value of other property, plant and equipment (PPE) owned (but not classified elsewhere) by the public utility.

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The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period.

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The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period.

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The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Carrying amount at the balance sheet date of borrowings from a bank, not elsewhere enumerated in the taxonomy, with a maturity within one year (or within one operating cycle if longer) from the date of borrowing.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying amount, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.

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The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.

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