Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Cash and cash equivalents:
Cash	$ 87,297	$ 129,579
Temporary cash investments	458,994	1,058,265
Total cash and cash equivalents	546,291	1,187,844
Accounts receivable:
Customer	754,484	654,995
Allowance for doubtful accounts	(13,569)	(11,924)
Other	152,329	158,419
Accrued unbilled revenues	420,099	368,677
Total accounts receivable	1,313,343	1,170,167
Deferred fuel costs	185,066	108,465
Fuel inventory - at average cost	158,854	179,600
Materials and supplies - at average cost	719,782	698,523
Deferred nuclear refueling outage costs	181,571	146,221
Prepayments and other	366,324	193,448
TOTAL	3,471,231	3,684,268
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	198	198
Decommissioning trust funds	6,982,928	5,723,897
Non-utility property - at cost (less accumulated depreciation)	252,621	233,641
Other	447,349	469,664
TOTAL	7,683,096	6,427,400
PROPERTY, PLANT, AND EQUIPMENT
Electric	46,190,075	45,191,216
Property under capital lease	618,321	619,527
Natural gas	435,313	413,224
Construction work in progress	2,191,320	1,378,180
Nuclear fuel	905,837	1,037,899
TOTAL PROPERTY, PLANT, AND EQUIPMENT	50,340,866	48,640,046
Less - accumulated depreciation and amortization	21,380,100	20,718,639
PROPERTY, PLANT, AND EQUIPMENT - NET	28,960,766	27,921,407
Regulatory assets:
Regulatory asset for income taxes - net	775,148	761,280
Other regulatory assets	4,638,615	4,769,913
Deferred fuel costs	239,248	239,100
Goodwill	377,172	377,172
Accumulated deferred income taxes	123,953	117,885
Other	129,213	1,606,009
TOTAL	6,283,349	7,871,359
TOTAL ASSETS	46,398,442	45,904,434
CURRENT LIABILITIES
Currently maturing long-term debt	869,207	364,900
Notes payable and commercial paper	1,352,688	415,011
Accounts payable	1,105,038	1,285,577
Customer deposits	403,262	403,311
Taxes Payable, Current	248,009	181,114
Interest accrued	181,118	187,229
Deferred fuel costs	61,867	102,753
Obligations under capital leases	2,043	2,423
Pension and other postretirement liabilities	64,904	76,942
Other	172,735	180,836
TOTAL	4,460,871	3,200,096
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	7,538,630	7,495,290
Accumulated deferred investment tax credits	219,892	227,147
Obligations under capital leases	22,783	24,582
Other regulatory liabilities	1,595,053	1,572,929
Decommissioning and asset retirement cost liabilities	6,116,010	5,992,476
Accumulated provisions	471,383	481,636
Pension and other postretirement liabilities	2,693,751	3,036,010
Long-term debt	13,977,522	14,467,655
Other	409,125	1,121,619
TOTAL	33,044,149	34,419,344
Subsidiaries' preferred stock without sinking fund	203,185	203,185
Common Shareholders' Equity:
Common stock	2,548	2,548
Paid-in capital	5,420,608	5,417,245
Retained earnings	8,617,901	8,195,571
Accumulated other comprehensive income (loss)	111,678	(34,971)
Less - treasury stock, at cost	5,462,498	5,498,584
TOTAL	8,690,237	8,081,809
TOTAL	8,690,237	8,081,809
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	46,398,442	45,904,434
Entergy Arkansas [Member]
Cash and cash equivalents:
Cash	127	20,174
Temporary cash investments	337	335
Total cash and cash equivalents	464	20,509
Securitization recovery trust account	7,759	4,140
Accounts receivable:
Customer	140,147	102,229
Allowance for doubtful accounts	(1,531)	(1,211)
Associated companies	35,455	35,286
Other	52,109	58,153
Accrued unbilled revenues	113,650	100,193
Total accounts receivable	339,830	294,650
Deferred fuel costs	150,206	96,690
Fuel inventory - at average cost	22,671	32,760
Materials and supplies - at average cost	191,199	182,600
Deferred nuclear refueling outage costs	80,769	81,313
Prepayments and other	81,322	14,293
TOTAL	874,220	726,955
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	910,369	834,735
Other	3,162	7,912
TOTAL	913,531	842,647
PROPERTY, PLANT, AND EQUIPMENT
Electric	10,823,675	10,488,060
Property under capital lease	598	716
Construction work in progress	365,938	304,073
Nuclear fuel	236,447	307,352
TOTAL PROPERTY, PLANT, AND EQUIPMENT	11,426,658	11,100,201
Less - accumulated depreciation and amortization	4,721,860	4,635,885
PROPERTY, PLANT, AND EQUIPMENT - NET	6,704,798	6,464,316
Regulatory assets:
Regulatory asset for income taxes - net	67,228	62,646
Other regulatory assets	1,428,127	1,428,029
Deferred fuel costs	67,046	66,898
Other	16,126	14,626
TOTAL	1,578,527	1,572,199
TOTAL ASSETS	10,071,076	9,606,117
CURRENT LIABILITIES
Currently maturing long-term debt	114,700	114,700
Short-term borrowings	8,257	0
Associated companies accounts payable	237,246	239,711
Other	142,160	185,153
Customer deposits	97,432	97,512
Taxes Payable, Current	22,561	7,194
Interest accrued	29,016	16,580
Other	34,329	36,557
TOTAL	685,701	697,407
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	2,265,375	2,186,623
Accumulated deferred investment tax credits	34,404	35,305
Other regulatory liabilities	349,380	305,907
Decommissioning and asset retirement cost liabilities	966,674	924,353
Accumulated provisions	28,776	18,682
Pension and other postretirement liabilities	351,046	424,234
Long-term debt	2,948,610	2,715,085
Other	12,022	13,854
TOTAL	6,956,287	6,624,043
Subsidiaries' preferred stock without sinking fund	31,350	31,350
Common Shareholders' Equity:
Common stock	470	470
Paid-in capital	790,243	790,243
Retained earnings	1,607,025	1,462,604
TOTAL	2,397,738	2,253,317
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	10,071,076	9,606,117
Entergy Louisiana [Member]
Cash and cash equivalents:
Cash	10,143	49,972
Temporary cash investments	45,380	163,878
Total cash and cash equivalents	55,523	213,850
Accounts receivable:
Customer	288,237	213,517
Allowance for doubtful accounts	(7,677)	(6,277)
Associated companies	190,048	155,794
Other	58,933	54,186
Accrued unbilled revenues	174,379	159,176
Total accounts receivable	703,920	576,396
Fuel inventory - at average cost	43,095	50,738
Materials and supplies - at average cost	297,545	294,421
Deferred nuclear refueling outage costs	83,207	22,535
Prepaid Taxes	12,966	110,104
Prepayments and other	85,303	41,687
TOTAL	1,281,559	1,309,731
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	1,390,587	1,390,587
Decommissioning trust funds	1,260,022	1,140,707
Non-utility property - at cost (less accumulated depreciation)	236,802	217,494
Storm Reserve Escrow Account	284,071	291,485
Other	18,837	28,844
TOTAL	3,190,319	3,069,117
PROPERTY, PLANT, AND EQUIPMENT
Electric	19,237,157	18,827,532
Natural gas	182,704	172,816
Construction work in progress	1,225,066	670,201
Nuclear fuel	339,749	249,807
TOTAL PROPERTY, PLANT, AND EQUIPMENT	20,984,676	19,920,356
Less - accumulated depreciation and amortization	8,622,235	8,420,596
PROPERTY, PLANT, AND EQUIPMENT - NET	12,362,441	11,499,760
Regulatory assets:
Regulatory asset for income taxes - net	480,257	470,480
Other regulatory assets	1,098,267	1,168,058
Deferred fuel costs	168,122	168,122
Other	17,374	16,003
TOTAL	1,764,020	1,822,663
TOTAL ASSETS	18,598,339	17,701,271
CURRENT LIABILITIES
Currently maturing long-term debt	675,002	200,198
Short-term borrowings	40,555	3,794
Associated companies accounts payable	85,920	82,106
Other	347,338	358,741
Customer deposits	149,274	148,601
Interest accrued	84,747	75,598
Deferred fuel costs	10,458	48,211
Other	88,525	80,013
TOTAL	1,481,819	997,262
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	2,998,156	2,691,118
Accumulated deferred investment tax credits	123,088	126,741
Other regulatory liabilities	808,914	880,974
Decommissioning and asset retirement cost liabilities	1,125,732	1,082,685
Accumulated provisions	304,441	310,772
Pension and other postretirement liabilities	709,396	780,278
Long-term debt	5,492,494	5,612,593
Other	159,711	137,039
TOTAL	11,721,932	11,622,200
Common Shareholders' Equity:
Accumulated other comprehensive income (loss)	(49,492)	(48,442)
Members' Equity	5,444,080	5,130,251
TOTAL	5,394,588	5,081,809
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	18,598,339	17,701,271
Entergy Mississippi [Member]
Cash and cash equivalents:
Cash	42	16
Temporary cash investments	7	76,818
Total cash and cash equivalents	49	76,834
Accounts receivable:
Customer	81,898	51,218
Allowance for doubtful accounts	(669)	(549)
Associated companies	34,417	45,973
Other	8,835	12,006
Accrued unbilled revenues	55,983	51,327
Total accounts receivable	180,464	159,975
Deferred fuel costs	34,301	6,957
Fuel inventory - at average cost	42,813	50,872
Materials and supplies - at average cost	44,100	41,146
Prepayments and other	14,555	8,873
TOTAL	316,282	344,657
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	4,596	4,608
Escrow accounts	31,894	31,783
TOTAL	36,490	36,391
PROPERTY, PLANT, AND EQUIPMENT
Electric	4,454,890	4,321,214
Property under capital lease	502	1,590
Construction work in progress	234,116	118,182
TOTAL PROPERTY, PLANT, AND EQUIPMENT	4,689,508	4,440,986
Less - accumulated depreciation and amortization	1,651,270	1,602,711
PROPERTY, PLANT, AND EQUIPMENT - NET	3,038,238	2,838,275
Regulatory assets:
Regulatory asset for income taxes - net	40,367	38,284
Other regulatory assets	373,453	342,213
Other	3,710	2,320
TOTAL	417,530	382,817
TOTAL ASSETS	3,808,540	3,602,140
CURRENT LIABILITIES
Associated companies accounts payable	147,147	43,647
Other	75,915	80,227
Customer deposits	83,682	84,112
Taxes Payable, Current	58,225	64,040
Interest accrued	19,287	21,653
Other	13,589	9,554
TOTAL	397,845	303,233
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	926,123	861,331
Accumulated deferred investment tax credits	8,811	8,667
Decommissioning and asset retirement cost liabilities	9,092	8,722
Accumulated provisions	44,166	54,440
Pension and other postretirement liabilities	90,696	109,551
Long-term debt	1,121,606	1,120,916
Other	14,238	20,108
TOTAL	2,214,732	2,183,735
Subsidiaries' preferred stock without sinking fund	20,381	20,381
Common Shareholders' Equity:
Common stock	199,326	199,326
Paid-in capital	167	167
Retained earnings	976,089	895,298
TOTAL	1,175,582	1,094,791
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	3,808,540	3,602,140
Entergy New Orleans [Member]
Cash and cash equivalents:
Cash	518	28
Temporary cash investments	28,364	103,040
Total cash and cash equivalents	28,882	103,068
Securitization recovery trust account	4,728	1,738
Accounts receivable:
Customer	57,440	43,536
Allowance for doubtful accounts	(3,140)	(3,059)
Associated companies	49,213	16,811
Other	4,928	5,926
Accrued unbilled revenues	22,124	18,254
Total accounts receivable	130,565	81,468
Deferred fuel costs	560	4,818
Fuel inventory - at average cost	2,331	1,841
Materials and supplies - at average cost	10,682	8,416
Prepaid Taxes	8,863	4,379
Prepayments and other	15,515	6,587
TOTAL	202,126	212,315
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	1,016	1,016
Storm Reserve Escrow Account	81,843	81,437
Other	2,414	7,160
TOTAL	85,273	89,613
PROPERTY, PLANT, AND EQUIPMENT
Electric	1,276,279	1,258,934
Natural gas	252,608	240,408
Construction work in progress	49,885	24,975
TOTAL PROPERTY, PLANT, AND EQUIPMENT	1,578,772	1,524,317
Less - accumulated depreciation and amortization	621,488	604,825
PROPERTY, PLANT, AND EQUIPMENT - NET	957,284	919,492
Regulatory assets:
Other regulatory assets	258,013	268,106
Deferred fuel costs	4,080	4,080
Other	890	963
TOTAL	262,983	273,149
TOTAL ASSETS	1,507,666	1,494,569
CURRENT LIABILITIES
Current payable due Entergy Louisiana	2,104	2,104
Associated companies accounts payable	42,408	39,260
Other	26,110	35,920
Customer deposits	28,734	28,667
Interest accrued	5,989	5,443
Other	9,291	11,415
TOTAL	114,636	122,809
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	369,688	334,953
Accumulated deferred investment tax credits	528	622
Regulatory liability for income taxes - net	4,133	9,074
Decommissioning and asset retirement cost liabilities	3,024	2,875
Accumulated provisions	86,811	88,513
Pension and other postretirement liabilities	22,957	36,750
Long-term debt	423,783	428,467
Gas system rebuild insurance proceeds	0	447
Long-term payable due to Entergy Louisiana	18,423	18,423
Other	9,392	4,910
TOTAL	938,739	925,034
Subsidiaries' preferred stock without sinking fund	19,780	19,780
Common Shareholders' Equity:
Common stock	33,744	33,744
Paid-in capital	171,544	171,544
Retained earnings	229,223	221,658
TOTAL	434,511	426,946
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	1,507,666	1,494,569
Entergy Texas [Member]
Cash and cash equivalents:
Cash	1,472	1,216
Temporary cash investments	30	4,965
Total cash and cash equivalents	1,502	6,181
Securitization recovery trust account	30,798	37,451
Accounts receivable:
Customer	86,860	71,803
Allowance for doubtful accounts	(552)	(828)
Associated companies	41,002	39,447
Other	12,982	14,756
Accrued unbilled revenues	53,962	39,727
Total accounts receivable	194,254	164,905
Fuel inventory - at average cost	44,548	37,177
Materials and supplies - at average cost	40,294	36,631
Prepayments and other	24,194	18,599
TOTAL	335,590	300,944
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	538	600
Non-utility property - at cost (less accumulated depreciation)	376	376
Other	19,126	18,801
TOTAL	20,040	19,777
PROPERTY, PLANT, AND EQUIPMENT
Electric	4,431,291	4,274,069
Construction work in progress	153,679	111,227
TOTAL PROPERTY, PLANT, AND EQUIPMENT	4,584,970	4,385,296
Less - accumulated depreciation and amortization	1,566,743	1,526,057
PROPERTY, PLANT, AND EQUIPMENT - NET	3,018,227	2,859,239
Regulatory assets:
Regulatory asset for income taxes - net	104,915	105,816
Other regulatory assets	681,508	740,156
Other	8,303	7,149
TOTAL	794,726	853,121
TOTAL ASSETS	4,168,583	4,033,081
CURRENT LIABILITIES
Associated companies accounts payable	142,695	47,867
Other	106,117	77,342
Customer deposits	44,141	44,419
Taxes Payable, Current	16,473	15,351
Interest accrued	18,770	25,977
Deferred fuel costs	51,409	54,543
Other	10,445	9,388
TOTAL	390,050	274,887
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	1,061,320	1,027,647
Accumulated deferred investment tax credits	12,221	12,934
Other regulatory liabilities	7,002	8,502
Decommissioning and asset retirement cost liabilities	6,742	6,470
Accumulated provisions	6,124	7,584
Pension and other postretirement liabilities	44,359	67,313
Long-term debt	1,451,643	1,508,407
Other	48,585	50,343
TOTAL	2,637,996	2,689,200
Common Shareholders' Equity:
Common stock	49,452	49,452
Paid-in capital	481,994	481,994
Retained earnings	609,091	537,548
TOTAL	1,140,537	1,068,994
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	4,168,583	4,033,081
System Energy [Member]
Cash and cash equivalents:
Cash	47	786
Temporary cash investments	144,920	245,077
Total cash and cash equivalents	144,967	245,863
Accounts receivable:
Associated companies	284,724	104,390
Other	4,814	3,637
Total accounts receivable	289,538	108,027
Materials and supplies - at average cost	86,719	82,469
Deferred nuclear refueling outage costs	11,713	24,729
Prepaid Taxes	12,926	15,882
Prepayments and other	14,450	4,229
TOTAL	560,313	481,199
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	870,610	780,496
TOTAL	870,610	780,496
PROPERTY, PLANT, AND EQUIPMENT
Electric	4,308,864	4,331,668
Property under capital lease	585,084	585,084
Construction work in progress	80,343	43,888
Nuclear fuel	188,956	259,635
TOTAL PROPERTY, PLANT, AND EQUIPMENT	5,163,247	5,220,275
Less - accumulated depreciation and amortization	3,155,691	3,063,249
PROPERTY, PLANT, AND EQUIPMENT - NET	2,007,556	2,157,026
Regulatory assets:
Regulatory asset for income taxes - net	86,515	93,127
Other regulatory assets	416,628	411,212
Other	4,421	4,652
TOTAL	507,564	508,991
TOTAL ASSETS	3,946,043	3,927,712
CURRENT LIABILITIES
Currently maturing long-term debt	4	50,003
Short-term borrowings	31,751	66,893
Associated companies accounts payable	10,325	5,843
Other	44,958	50,558
Interest accrued	14,450	14,049
Other	2,958	2,957
TOTAL	104,446	190,303
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	1,147,913	1,112,865
Accumulated deferred investment tax credits	39,726	41,663
Other regulatory liabilities	424,381	370,862
Decommissioning and asset retirement cost liabilities	853,291	854,202
Pension and other postretirement liabilities	103,185	117,850
Long-term debt	551,387	501,129
Other	8,221	15
TOTAL	3,128,104	2,998,586
Common Shareholders' Equity:
Common stock	679,350	679,350
Retained earnings	34,143	59,473
TOTAL	713,493	738,823
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 3,946,043	$ 3,927,712