Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Cash and cash equivalents:
Cash	$ 101,905	$ 63,497
Temporary cash investments	1,205,529	1,287,464
Total cash and cash equivalents	1,307,434	1,350,961
Accounts receivable:
Customer	724,970	608,491
Allowance for doubtful accounts	(11,387)	(39,895)
Other	227,278	178,364
Accrued unbilled revenues	439,596	321,940
Total accounts receivable	1,380,457	1,068,900
Deferred fuel costs	41,686	0
Fuel inventory - at average cost	188,910	217,810
Materials and supplies - at average cost	918,269	873,357
Deferred nuclear refueling outage costs	217,487	211,512
Prepayments and other	285,792	344,872
TOTAL	4,340,035	4,067,412
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	717	4,341
Decommissioning trust funds	5,671,074	5,349,953
Non-utility property - at cost (less accumulated depreciation)	223,008	219,999
Other	473,964	468,704
TOTAL	6,368,763	6,042,997
PROPERTY, PLANT, AND EQUIPMENT
Electric	47,486,695	44,467,159
Property under capital lease	609,852	952,465
Natural gas	408,360	392,032
Construction work in progress	1,451,492	1,456,735
Nuclear fuel	1,170,956	1,345,422
TOTAL PROPERTY, PLANT, AND EQUIPMENT	51,127,355	48,613,813
Less - accumulated depreciation and amortization	21,798,230	20,789,452
PROPERTY, PLANT, AND EQUIPMENT - NET	29,329,125	27,824,361
Regulatory assets:
Regulatory asset for income taxes - net	777,113	775,528
Other regulatory assets	4,540,895	4,704,796
Deferred fuel costs	239,050	238,902
Goodwill	377,172	377,172
Accumulated deferred income taxes	123,085	54,903
Other	1,642,943	561,610
TOTAL	7,700,258	6,712,911
TOTAL ASSETS	47,738,181	44,647,681
CURRENT LIABILITIES
Currently maturing long-term debt	750,200	214,374
Notes payable and commercial paper	433,363	494,348
Accounts payable	1,063,139	1,071,798
Customer deposits	402,794	419,407
Taxes Payable, Current	239,506	210,077
Interest accrued	181,078	194,565
Deferred fuel costs	118,228	235,986
Obligations under capital leases	2,743	2,709
Pension and other postretirement liabilities	59,767	62,513
Other	200,929	184,181
TOTAL	3,451,747	3,089,958
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	8,510,946	8,306,865
Accumulated deferred investment tax credits	228,757	234,300
Obligations under capital leases	24,957	27,001
Other regulatory liabilities	1,525,897	1,414,898
Decommissioning and asset retirement cost liabilities	6,101,283	4,790,187
Accumulated provisions	463,466	460,727
Pension and other postretirement liabilities	2,884,903	3,187,357
Long-term debt	13,861,703	13,111,556
Other	382,275	449,856
TOTAL	33,984,187	31,982,747
Subsidiaries' preferred stock without sinking fund	233,185	318,185
Common Shareholders' Equity:
Common stock	2,548	2,548
Paid-in capital	5,403,987	5,403,758
Retained earnings	10,123,086	9,393,913
Accumulated other comprehensive income	38,136	8,951
Less - treasury stock, at cost	5,498,695	5,552,379
TOTAL	10,069,062	9,256,791
TOTAL	10,069,062	9,256,791
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	47,738,181	44,647,681
Entergy Arkansas [Member]
Cash and cash equivalents:
Cash	3,394	9,066
Temporary cash investments	17	69
Total cash and cash equivalents	3,411	9,135
Securitization recovery trust account	7,728	4,204
Accounts receivable:
Customer	149,798	108,636
Allowance for doubtful accounts	(1,605)	(34,226)
Associated companies	30,465	32,987
Other	81,260	84,216
Accrued unbilled revenues	122,884	73,583
Total accounts receivable	382,802	265,196
Deferred fuel costs	41,686	0
Fuel inventory - at average cost	33,721	62,689
Materials and supplies - at average cost	179,018	169,919
Deferred nuclear refueling outage costs	44,291	67,834
Prepaid Taxes	109,170	30,291
Prepayments and other	18,899	15,145
TOTAL	820,726	624,413
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	823,816	771,313
Other	7,914	12,895
TOTAL	831,730	784,208
PROPERTY, PLANT, AND EQUIPMENT
Electric	10,314,236	9,536,802
Property under capital lease	751	844
Construction work in progress	324,877	388,075
Nuclear fuel	245,251	286,341
TOTAL PROPERTY, PLANT, AND EQUIPMENT	10,885,115	10,212,062
Less - accumulated depreciation and amortization	4,578,460	4,349,809
PROPERTY, PLANT, AND EQUIPMENT - NET	6,306,655	5,862,253
Regulatory assets:
Regulatory asset for income taxes - net	71,853	61,438
Other regulatory assets	1,329,038	1,333,773
Deferred fuel costs	66,848	66,700
Other	16,692	14,989
TOTAL	1,484,431	1,476,900
TOTAL ASSETS	9,443,542	8,747,774
CURRENT LIABILITIES
Currently maturing long-term debt	0	55,000
Short-term borrowings	47,408	11,690
Associated companies accounts payable	186,791	110,464
Other	161,929	177,758
Customer deposits	97,046	118,340
Interest accrued	25,792	19,883
Deferred fuel costs	0	8,853
Other	53,654	45,219
TOTAL	572,620	547,207
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	2,153,146	1,982,812
Accumulated deferred investment tax credits	35,605	36,506
Other regulatory liabilities	292,545	242,913
Decommissioning and asset retirement cost liabilities	912,254	872,346
Accumulated provisions	5,682	5,552
Pension and other postretirement liabilities	381,333	459,153
Long-term debt	2,796,059	2,574,839
Other	13,154	18,438
TOTAL	6,589,778	6,192,559
Subsidiaries' preferred stock without sinking fund	31,350	116,350
Common Shareholders' Equity:
Common stock	470	470
Paid-in capital	790,243	588,493
Retained earnings	1,459,081	1,302,695
TOTAL	2,249,794	1,891,658
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	9,443,542	8,747,774
Entergy Louisiana [Member]
Cash and cash equivalents:
Cash	37,460	348
Temporary cash investments	57,619	34,754
Total cash and cash equivalents	95,079	35,102
Accounts receivable:
Customer	253,637	179,051
Allowance for doubtful accounts	(6,656)	(4,209)
Associated companies	127,871	94,418
Other	108,213	56,793
Accrued unbilled revenues	188,797	143,079
Total accounts receivable	671,862	469,132
Fuel inventory - at average cost	49,623	48,045
Materials and supplies - at average cost	313,764	282,688
Deferred nuclear refueling outage costs	29,566	66,984
Prepayments and other	42,887	28,294
TOTAL	1,202,781	930,245
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	1,390,587	1,390,587
Decommissioning trust funds	1,124,821	1,042,293
Non-utility property - at cost (less accumulated depreciation)	209,969	206,293
Storm Reserve Escrow Account	291,245	290,422
Other	28,882	14,776
TOTAL	3,045,504	2,944,371
PROPERTY, PLANT, AND EQUIPMENT
Electric	19,038,635	17,629,077
Property under capital lease	0	341,514
Natural gas	169,241	159,252
Construction work in progress	547,968	420,874
Nuclear fuel	266,085	386,524
TOTAL PROPERTY, PLANT, AND EQUIPMENT	20,021,929	18,937,241
Less - accumulated depreciation and amortization	8,764,536	8,302,774
PROPERTY, PLANT, AND EQUIPMENT - NET	11,257,393	10,634,467
Regulatory assets:
Regulatory asset for income taxes - net	474,622	478,243
Other regulatory assets	1,147,575	1,217,874
Deferred fuel costs	168,122	168,122
Other	16,846	14,125
TOTAL	1,807,165	1,878,364
TOTAL ASSETS	17,312,843	16,387,447
CURRENT LIABILITIES
Currently maturing long-term debt	200,198	29,372
Short-term borrowings	41,971	60,356
Associated companies accounts payable	91,071	165,419
Other	317,672	276,280
Customer deposits	149,293	146,555
Taxes Payable, Current	69,362	125,142
Interest accrued	81,911	74,380
Deferred fuel costs	59,143	65,234
Other	90,792	79,982
TOTAL	1,101,413	1,022,720
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	2,657,512	2,506,956
Accumulated deferred investment tax credits	127,996	131,760
Regulatory liability for income taxes - net	0	2,473
Other regulatory liabilities	849,470	818,623
Decommissioning and asset retirement cost liabilities	1,068,709	1,027,862
Accumulated provisions	311,940	310,282
Pension and other postretirement liabilities	769,240	833,185
Long-term debt	5,207,699	4,806,790
Long-term payables of associated companies	134	1,073
Other	142,728	188,411
TOTAL	11,135,428	10,627,415
Common Shareholders' Equity:
Accumulated other comprehensive income	(57,137)	(56,412)
Members' Equity	5,133,139	4,793,724
TOTAL	5,076,002	4,737,312
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	17,312,843	16,387,447
Entergy Mississippi [Member]
Cash and cash equivalents:
Cash	961	1,426
Temporary cash investments	307,303	144,179
Total cash and cash equivalents	308,264	145,605
Accounts receivable:
Customer	56,699	56,685
Allowance for doubtful accounts	(687)	(718)
Associated companies	85,361	34,964
Other	8,328	8,276
Accrued unbilled revenues	61,029	47,284
Total accounts receivable	210,730	146,491
Fuel inventory - at average cost	50,861	51,273
Materials and supplies - at average cost	40,396	39,491
Prepayments and other	8,380	5,184
TOTAL	618,631	388,044
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	4,612	4,625
Escrow accounts	31,816	41,726
TOTAL	36,428	46,351
PROPERTY, PLANT, AND EQUIPMENT
Electric	4,223,311	4,083,933
Property under capital lease	1,936	2,942
Construction work in progress	137,717	114,067
TOTAL PROPERTY, PLANT, AND EQUIPMENT	4,362,964	4,200,942
Less - accumulated depreciation and amortization	1,582,162	1,534,522
PROPERTY, PLANT, AND EQUIPMENT - NET	2,780,802	2,666,420
Regulatory assets:
Regulatory asset for income taxes - net	39,243	45,790
Other regulatory assets	318,777	328,681
Other	2,920	2,121
TOTAL	360,940	376,592
TOTAL ASSETS	3,796,801	3,477,407
CURRENT LIABILITIES
Currently maturing long-term debt	0	125,000
Associated companies accounts payable	37,869	38,496
Other	70,443	51,502
Customer deposits	83,479	81,583
Taxes Payable, Current	42,696	43,461
Interest accrued	18,482	20,831
Deferred fuel costs	28,083	107,754
Other	12,906	22,754
TOTAL	293,958	491,381
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	840,514	810,635
Accumulated deferred investment tax credits	7,441	4,645
Decommissioning and asset retirement cost liabilities	8,602	8,252
Accumulated provisions	53,283	48,062
Pension and other postretirement liabilities	101,338	120,217
Long-term debt	1,344,305	920,085
Other	15,126	11,699
TOTAL	2,370,609	1,923,595
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	883,217	813,414
TOTAL	1,081,853	1,012,050
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	3,796,801	3,477,407
Entergy New Orleans [Member]
Cash and cash equivalents:
Cash	644	1,068
Temporary cash investments	37,245	87,808
Total cash and cash equivalents	37,889	88,876
Securitization recovery trust account	5,122	4,620
Accounts receivable:
Customer	51,467	34,627
Allowance for doubtful accounts	(1,499)	(268)
Associated companies	10,043	23,248
Other	4,180	3,753
Accrued unbilled revenues	22,755	17,799
Total accounts receivable	86,946	79,159
Fuel inventory - at average cost	2,127	1,912
Materials and supplies - at average cost	8,993	13,244
Prepaid Taxes	90,457	2,694
Prepayments and other	10,877	7,569
TOTAL	242,411	198,074
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	1,016	1,016
Storm Reserve Escrow Account	81,299	81,002
Other	7,160	3
TOTAL	89,475	82,021
PROPERTY, PLANT, AND EQUIPMENT
Electric	1,251,039	1,051,239
Natural gas	239,118	232,780
Construction work in progress	24,863	29,027
TOTAL PROPERTY, PLANT, AND EQUIPMENT	1,515,020	1,313,046
Less - accumulated depreciation and amortization	606,343	648,081
PROPERTY, PLANT, AND EQUIPMENT - NET	908,677	664,965
Regulatory assets:
Other regulatory assets	258,485	265,322
Deferred fuel costs	4,080	4,080
Other	931	682
TOTAL	263,496	270,084
TOTAL ASSETS	1,504,059	1,215,144
CURRENT LIABILITIES
Current payable due Entergy Louisiana	4,973	4,973
Associated companies accounts payable	39,066	37,467
Other	26,419	21,471
Customer deposits	28,507	28,392
Interest accrued	6,081	4,909
Deferred fuel costs	12,350	29,021
Other	13,012	6,216
TOTAL	130,408	132,449
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	327,389	214,061
Accumulated deferred investment tax credits	655	753
Regulatory liability for income taxes - net	9,231	13,199
Decommissioning and asset retirement cost liabilities	2,827	2,687
Accumulated provisions	84,865	84,187
Pension and other postretirement liabilities	29,936	43,609
Long-term debt	433,795	317,380
Gas system rebuild insurance proceeds	3,904	12,788
Long-term payable due to Entergy Louisiana	20,527	20,527
Other	10,972	3,692
TOTAL	924,101	712,883
Subsidiaries' preferred stock without sinking fund	19,780	19,780
Common Shareholders' Equity:
Common stock	33,744	33,744
Paid-in capital	171,544	123,794
Retained earnings	224,482	192,494
TOTAL	429,770	350,032
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	1,504,059	1,215,144
Entergy Texas [Member]
Cash and cash equivalents:
Cash	1,314	2,153
Temporary cash investments	29	29
Total cash and cash equivalents	1,343	2,182
Securitization recovery trust account	31,399	38,161
Accounts receivable:
Customer	86,623	61,870
Allowance for doubtful accounts	(939)	(474)
Associated companies	51,390	42,279
Other	14,397	11,054
Accrued unbilled revenues	44,131	40,195
Total accounts receivable	195,602	154,924
Fuel inventory - at average cost	46,674	46,942
Materials and supplies - at average cost	37,725	34,994
Prepayments and other	25,342	17,975
TOTAL	338,085	295,178
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	599	620
Non-utility property - at cost (less accumulated depreciation)	376	376
Other	20,907	20,186
TOTAL	21,882	21,182
PROPERTY, PLANT, AND EQUIPMENT
Electric	4,218,696	3,923,100
Construction work in progress	139,189	210,964
TOTAL PROPERTY, PLANT, AND EQUIPMENT	4,357,885	4,134,064
Less - accumulated depreciation and amortization	1,544,349	1,477,529
PROPERTY, PLANT, AND EQUIPMENT - NET	2,813,536	2,656,535
Regulatory assets:
Regulatory asset for income taxes - net	107,349	107,499
Other regulatory assets	743,688	812,862
Other	4,608	5,326
TOTAL	855,645	925,687
TOTAL ASSETS	4,029,148	3,898,582
CURRENT LIABILITIES
Associated companies accounts payable	65,675	106,065
Other	93,026	87,421
Customer deposits	44,469	44,537
Taxes Payable, Current	60,454	5,333
Interest accrued	19,753	29,206
Deferred fuel costs	18,652	25,124
Other	10,712	10,363
TOTAL	312,741	308,049
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	998,037	1,006,834
Accumulated deferred investment tax credits	13,159	13,835
Other regulatory liabilities	7,106	6,396
Decommissioning and asset retirement cost liabilities	6,381	6,124
Accumulated provisions	6,001	9,319
Pension and other postretirement liabilities	56,456	77,517
Long-term debt	1,521,270	1,451,967
Other	51,788	57,085
TOTAL	2,660,198	2,629,077
Common Shareholders' Equity:
Common stock	49,452	49,452
Paid-in capital	481,994	481,994
Retained earnings	524,763	430,010
TOTAL	1,056,209	961,456
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	4,029,148	3,898,582
System Energy [Member]
Cash and cash equivalents:
Cash	988	8,681
Temporary cash investments	190,174	221,980
Total cash and cash equivalents	191,162	230,661
Accounts receivable:
Associated companies	79,582	93,724
Other	1,217	4,574
Total accounts receivable	80,799	98,298
Materials and supplies - at average cost	82,334	87,366
Deferred nuclear refueling outage costs	29,840	5,605
Prepaid Taxes	39,390	9,327
Prepayments and other	4,801	1,955
TOTAL	428,326	433,212
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	764,903	701,460
TOTAL	764,903	701,460
PROPERTY, PLANT, AND EQUIPMENT
Electric	4,315,805	4,253,949
Property under capital lease	575,027	575,027
Construction work in progress	63,010	92,546
Nuclear fuel	258,363	183,706
TOTAL PROPERTY, PLANT, AND EQUIPMENT	5,212,205	5,105,228
Less - accumulated depreciation and amortization	3,039,533	2,961,842
PROPERTY, PLANT, AND EQUIPMENT - NET	2,172,672	2,143,386
Regulatory assets:
Regulatory asset for income taxes - net	93,277	98,230
Other regulatory assets	365,175	347,830
Other	4,921	4,757
TOTAL	463,373	450,817
TOTAL ASSETS	3,829,274	3,728,875
CURRENT LIABILITIES
Currently maturing long-term debt	50,003	2
Short-term borrowings	80,041	0
Associated companies accounts payable	7,328	7,391
Other	24,736	34,010
Interest accrued	14,589	14,183
Other	1,928	1,926
TOTAL	178,625	57,512
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	1,088,503	1,019,075
Accumulated deferred investment tax credits	42,652	45,451
Other regulatory liabilities	365,302	337,424
Decommissioning and asset retirement cost liabilities	841,187	803,405
Pension and other postretirement liabilities	96,475	112,264
Long-term debt	501,020	572,665
Other	13	0
TOTAL	2,935,152	2,890,284
Common Shareholders' Equity:
Common stock	679,350	719,350
Retained earnings	36,147	61,729
TOTAL	715,497	781,079
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 3,829,274	$ 3,728,875