Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Cash and cash equivalents:
Cash	$ 105,288	$ 115,290
Temporary cash investments	1,414,486	108,874
Total cash and cash equivalents	1,519,774	224,164
Accounts receivable:
Customer	986,010	788,552
Allowance for doubtful accounts	(27,813)	(30,856)
Other	203,151	241,702
Accrued unbilled revenues	551,392	495,859
Total accounts receivable	1,712,740	1,495,257
Deferred Fuel Cost	188,885	710,401
Fuel inventory - at average cost	182,233	147,632
Public Utilities, Inventory	1,362,098	1,183,308
Deferred nuclear refueling outage costs	125,101	143,653
Prepaid Expense and Other Assets	238,828	190,611
TOTAL	5,329,659	4,095,026
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	4,417,704	4,121,864
Non-utility property - at cost (less accumulated depreciation)	419,931	366,405
Storm Reserve Escrow Account	416,274	401,955
Other	65,613	102,259
TOTAL	5,319,522	4,992,483
PROPERTY, PLANT, AND EQUIPMENT
Electric	65,954,146	64,646,911
Natural gas	712,374	691,970
Construction work in progress	2,296,265	1,844,171
Nuclear fuel	606,600	582,119
TOTAL PROPERTY, PLANT, AND EQUIPMENT	69,569,385	67,765,171
Less - accumulated depreciation and amortization	26,274,303	25,288,047
PROPERTY, PLANT, AND EQUIPMENT - NET	43,295,082	42,477,124
Regulatory assets:
Regulatory Assets, Noncurrent	5,690,179	6,036,397
Deferred Fuel Cost Non Current	172,202	241,085
Goodwill	377,172	377,172
Deferred Income Tax Assets, Net	50,895	84,100
Other	317,436	291,804
Deferred Costs and Other Assets	6,607,884	7,030,558
TOTAL ASSETS	60,552,147	58,595,191
CURRENT LIABILITIES
Currently maturing long-term debt	1,524,057	2,309,037
Short-term borrowings	1,351,105	827,621
Accounts payable	1,336,107	1,777,590
Contract with Customer, Liability, Current	441,018	424,723
Taxes Payable, Current	531,990	424,091
Interest accrued	261,835	195,264
Deferred fuel costs	98,924	0
Pension and other postretirement liabilities	53,533	104,845
Sale-leaseback/depreciation regulatory liability	0	103,497
Other	250,123	202,779
TOTAL	5,848,692	6,369,447
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	5,063,523	4,818,837
Accumulated deferred investment tax credits	204,839	211,220
Regulatory liability for income taxes - net	1,223,532	1,258,276
Other regulatory liabilities	2,667,648	2,324,590
Decommissioning and asset retirement cost liabilities	4,449,832	4,271,531
Loss Contingency Accrual	524,030	531,201
Pension and other postretirement liabilities	916,981	1,213,555
Long-term debt	24,659,343	23,623,512
Deferred Credits and Other Liabilities	955,309	688,720
TOTAL	40,665,037	38,941,442
Subsidiaries' preferred stock without sinking fund	$ 219,410	$ 219,410
Preferred Stock, No Par Value	$ 0	$ 0
Proceeds from Issuance of Preferred Stock and Preference Stock	$ 0	$ 0
Common Shareholders' Equity:
Common Stock, Value, Issued	2,797	2,797
Additional Paid in Capital, Common Stock	7,649,370	7,632,895
Accumulated other comprehensive loss	(195,453)	(191,754)
Less - treasury stock, at cost	4,957,522	4,978,994
TOTAL	13,691,468	12,966,985
Stockholders' Equity Attributable to Noncontrolling Interest	127,540	97,907
Retained Earnings (Accumulated Deficit)	11,192,276	10,502,041
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	13,819,008	13,064,892
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	60,552,147	58,595,191
Entergy Arkansas [Member]
Cash and cash equivalents:
Cash	3,137	1,911
Temporary cash investments	110,262	3,367
Total cash and cash equivalents	113,399	5,278
Accounts receivable:
Customer	220,508	140,513
Allowance for doubtful accounts	(5,599)	(6,528)
Other	64,642	101,096
Accrued unbilled revenues	126,245	116,816
Total accounts receivable	454,079	397,233
Deferred Fuel Cost	0	139,739
Fuel inventory - at average cost	43,143	51,144
Public Utilities, Inventory	331,099	288,260
Deferred nuclear refueling outage costs	49,373	56,443
Prepaid Expense and Other Assets	43,694	26,576
TOTAL	1,034,787	964,673
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	1,285,583	1,199,860
Other	2,305	2,414
TOTAL	1,287,888	1,202,274
PROPERTY, PLANT, AND EQUIPMENT
Electric	14,614,754	14,077,844
Construction work in progress	479,889	417,244
Nuclear fuel	162,397	176,174
TOTAL PROPERTY, PLANT, AND EQUIPMENT	15,257,040	14,671,262
Less - accumulated depreciation and amortization	5,953,948	5,729,304
PROPERTY, PLANT, AND EQUIPMENT - NET	9,303,092	8,941,958
Regulatory assets:
Regulatory Assets, Noncurrent	1,879,619	1,810,281
Deferred Fuel Cost Non Current	0	68,883
Other	16,194	18,507
Deferred Costs and Other Assets	1,895,813	1,897,671
TOTAL ASSETS	13,521,580	13,006,576
CURRENT LIABILITIES
Currently maturing long-term debt	415,000	290,000
Accounts Payable	69,666	276,362
Accounts payable	219,357	310,339
Contract with Customer, Liability, Current	109,719	102,799
Taxes Payable, Current	115,559	100,526
Interest accrued	54,350	18,816
Deferred fuel costs	26,243	0
Other	69,429	43,394
TOTAL	1,079,323	1,142,236
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	1,561,460	1,498,234
Accumulated deferred investment tax credits	27,571	28,472
Regulatory liability for income taxes - net	433,687	435,157
Other regulatory liabilities	545,703	475,758
Decommissioning and asset retirement cost liabilities	1,537,742	1,472,736
Loss Contingency Accrual	55,642	79,998
Pension and other postretirement liabilities	61,984	118,020
Long-term debt	4,235,501	3,876,500
Deferred Credits and Other Liabilities	118,362	97,650
TOTAL	8,577,652	8,082,525
Common Shareholders' Equity:
Members' Equity	3,840,930	3,753,990
Members' Equity Attributable to Noncontrolling Interest	23,675	27,825
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	3,864,605	3,781,815
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	13,521,580	13,006,576
Entergy Arkansas [Member] | Affiliated Entity
Accounts receivable:
Customer	48,283	45,336
Entergy Louisiana [Member]
Cash and cash equivalents:
Cash	27,521	50,318
Temporary cash investments	765,759	6,295
Total cash and cash equivalents	793,280	56,613
Accounts receivable:
Customer	361,830	339,291
Allowance for doubtful accounts	(7,569)	(7,595)
Other	51,549	53,241
Accrued unbilled revenues	233,913	199,077
Total accounts receivable	806,564	672,910
Deferred Fuel Cost	26,093	159,183
Fuel inventory - at average cost	61,053	41,859
Public Utilities, Inventory	641,041	555,860
Deferred nuclear refueling outage costs	62,394	53,833
Prepaid Expense and Other Assets	291,656	76,646
TOTAL	2,682,081	1,616,904
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	1,912,924	1,779,090
Non-utility property - at cost (less accumulated depreciation)	404,720	350,723
Storm Reserve Escrow Account	303,869	293,406
Other	14,349	19,679
TOTAL	7,132,746	5,606,470
PROPERTY, PLANT, AND EQUIPMENT
Electric	27,482,440	27,498,136
Natural gas	311,565	301,719
Construction work in progress	587,658	736,969
Nuclear fuel	305,492	212,941
TOTAL PROPERTY, PLANT, AND EQUIPMENT	28,687,155	28,749,765
Less - accumulated depreciation and amortization	10,382,412	10,087,942
PROPERTY, PLANT, AND EQUIPMENT - NET	18,304,743	18,661,823
Regulatory assets:
Regulatory Assets, Noncurrent	1,665,315	2,056,179
Deferred Fuel Cost Non Current	168,122	168,122
Other	38,984	35,057
Deferred Costs and Other Assets	1,872,421	2,259,358
TOTAL ASSETS	29,991,991	28,144,555
CURRENT LIABILITIES
Currently maturing long-term debt	685,000	1,010,000
Accounts Payable	104,903	356,688
Accounts payable	411,363	589,355
Contract with Customer, Liability, Current	167,586	161,666
Taxes Payable, Current	93,983	36,004
Interest accrued	91,649	101,336
Other	125,059	72,525
TOTAL	1,679,543	2,327,574
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	2,504,547	2,374,878
Accumulated deferred investment tax credits	94,399	97,868
Regulatory liability for income taxes - net	323,956	337,836
Other regulatory liabilities	1,252,109	1,037,962
Decommissioning and asset retirement cost liabilities	1,813,564	1,736,801
Loss Contingency Accrual	323,563	316,314
Pension and other postretirement liabilities	346,126	389,631
Long-term debt	9,714,014	9,688,922
Deferred Credits and Other Liabilities	431,572	343,321
TOTAL	16,803,850	16,323,533
Common Shareholders' Equity:
Accumulated other comprehensive loss	50,982	55,370
Members' Equity	11,410,402	9,406,343
Members' Equity Attributable to Noncontrolling Interest	47,214	31,735
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	11,508,598	9,493,448
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	29,991,991	28,144,555
Entergy Louisiana [Member] | Affiliated Entity
Accounts receivable:
Customer	166,841	88,896
Investments in and Advances to Affiliates, at Fair Value	4,496,884	3,163,572
Entergy Mississippi [Member]
Cash and cash equivalents:
Cash	26	26
Temporary cash investments	10,290	16,953
Total cash and cash equivalents	10,316	16,979
Accounts receivable:
Customer	170,454	99,504
Allowance for doubtful accounts	(3,035)	(2,472)
Other	18,525	34,564
Accrued unbilled revenues	72,799	73,473
Total accounts receivable	268,768	242,742
Deferred Fuel Cost	0	143,211
Fuel inventory - at average cost	17,294	15,548
Public Utilities, Inventory	94,877	84,346
Prepaid Expense and Other Assets	10,350	9,603
TOTAL	401,605	512,429
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	4,501	4,512
Storm Reserve Escrow Account	34,694	33,549
Other	841	910
TOTAL	40,036	38,971
PROPERTY, PLANT, AND EQUIPMENT
Electric	7,381,120	7,079,849
Construction work in progress	249,991	170,191
TOTAL PROPERTY, PLANT, AND EQUIPMENT	7,631,111	7,250,040
Less - accumulated depreciation and amortization	2,417,190	2,264,786
PROPERTY, PLANT, AND EQUIPMENT - NET	5,213,921	4,985,254
Regulatory assets:
Regulatory Assets, Noncurrent	555,430	519,460
Other	25,558	22,650
Deferred Costs and Other Assets	580,988	542,110
TOTAL ASSETS	6,236,550	6,078,764
CURRENT LIABILITIES
Currently maturing long-term debt	200,000	400,000
Accounts Payable	60,679	60,532
Accounts payable	115,126	176,162
Contract with Customer, Liability, Current	91,944	89,668
Taxes Payable, Current	139,174	124,905
Interest accrued	29,542	18,208
Deferred fuel costs	72,681	0
Other	24,747	38,908
TOTAL	733,893	908,383
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	812,716	780,030
Accumulated deferred investment tax credits	14,294	14,591
Regulatory liability for income taxes - net	193,812	202,058
Other regulatory liabilities	35,399	79,865
Decommissioning and asset retirement cost liabilities	8,119	7,797
Loss Contingency Accrual	40,136	37,509
Pension and other postretirement liabilities	890	23,742
Long-term debt	2,129,185	1,931,096
Deferred Credits and Other Liabilities	79,919	53,156
TOTAL	3,314,470	3,129,844
Common Shareholders' Equity:
Stockholders' Equity Attributable to Noncontrolling Interest	21,651	3,347
Members' Equity	2,166,536	2,037,190
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	2,188,187	2,040,537
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	6,236,550	6,078,764
Entergy Mississippi [Member] | Affiliated Entity
Accounts receivable:
Customer	10,025	37,673
Entergy New Orleans [Member]
Cash and cash equivalents:
Cash	435	27
Temporary cash investments	114,372	4,437
Total cash and cash equivalents	114,807	4,464
Securitization recovery trust account	5,672	2,235
Accounts receivable:
Customer	91,353	93,288
Allowance for doubtful accounts	(9,213)	(11,909)
Other	5,415	6,110
Accrued unbilled revenues	33,068	37,284
Total accounts receivable	134,154	274,700
Deferred Fuel Cost	2,128	10,153
Fuel inventory - at average cost	2,963	5,872
Public Utilities, Inventory	26,998	22,498
Prepaid Expense and Other Assets	13,884	6,312
TOTAL	300,606	326,234
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	832	1,050
Storm Reserve Escrow Account	77,712	75,000
Other	624	675
TOTAL	79,168	76,725
PROPERTY, PLANT, AND EQUIPMENT
Electric	2,010,846	1,934,837
Natural gas	400,808	390,252
Construction work in progress	31,152	39,607
TOTAL PROPERTY, PLANT, AND EQUIPMENT	2,442,806	2,364,696
Less - accumulated depreciation and amortization	842,197	808,224
PROPERTY, PLANT, AND EQUIPMENT - NET	1,600,609	1,556,472
Regulatory assets:
Regulatory Assets, Noncurrent	193,515	202,112
Deferred Fuel Cost Non Current	4,080	4,080
Other	54,278	46,778
Deferred Costs and Other Assets	251,873	252,970
TOTAL ASSETS	2,232,256	2,212,401
CURRENT LIABILITIES
Currently maturing long-term debt	85,000	170,000
Accounts Payable	40,883	53,258
Accounts payable	34,283	57,291
Contract with Customer, Liability, Current	32,310	31,826
Taxes Payable, Current	11,042	10,308
Interest accrued	10,275	8,080
Other	32,899	6,560
TOTAL	247,998	338,629
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	405,836	385,259
Accumulated deferred investment tax credits	16,463	16,481
Regulatory liability for income taxes - net	42,028	39,738
Other regulatory liabilities	36,323	20,735
Decommissioning and asset retirement cost liabilities	4,539	0
Loss Contingency Accrual	93,633	87,048
Long-term debt	590,417	596,047
Deferred Credits and Other Liabilities	16,380	17,369
TOTAL	1,213,898	1,170,956
Common Shareholders' Equity:
Members' Equity	770,360	702,816
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	770,360	702,816
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	2,232,256	2,212,401
Notes Payable, Current	1,306	1,306
Amount	8,279	8,279
Entergy New Orleans [Member] | Affiliated Entity
Accounts receivable:
Customer	13,531	149,927
Entergy Texas [Member]
Cash and cash equivalents:
Cash	1,235	500
Temporary cash investments	249,561	2,997
Total cash and cash equivalents	250,796	3,497
Securitization recovery trust account	12,281	10,879
Accounts receivable:
Customer	141,865	115,955
Allowance for doubtful accounts	(2,397)	(2,352)
Other	29,145	21,587
Accrued unbilled revenues	85,368	69,208
Total accounts receivable	286,896	319,947
Deferred Fuel Cost	160,664	258,115
Fuel inventory - at average cost	52,484	26,750
Public Utilities, Inventory	103,683	93,031
Prepaid Expense and Other Assets	30,324	20,568
TOTAL	897,128	732,787
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	376	376
Other	17,041	18,975
TOTAL	17,642	19,601
PROPERTY, PLANT, AND EQUIPMENT
Electric	7,734,635	7,409,461
Construction work in progress	784,116	339,139
TOTAL PROPERTY, PLANT, AND EQUIPMENT	8,518,751	7,748,600
Less - accumulated depreciation and amortization	2,310,663	2,135,400
PROPERTY, PLANT, AND EQUIPMENT - NET	6,208,088	5,613,200
Regulatory assets:
Regulatory Assets, Noncurrent	596,679	578,682
Other	102,743	99,694
Deferred Costs and Other Assets	699,422	678,376
TOTAL ASSETS	7,822,280	7,043,964
CURRENT LIABILITIES
Accounts Payable	67,665	70,321
Accounts payable	200,767	201,982
Contract with Customer, Liability, Current	39,459	38,764
Taxes Payable, Current	63,038	93,033
Interest accrued	37,540	23,928
Other	14,089	16,963
TOTAL	422,558	444,991
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	814,181	744,227
Accumulated deferred investment tax credits	8,150	8,711
Regulatory liability for income taxes - net	121,472	132,647
Other regulatory liabilities	43,311	45,247
Decommissioning and asset retirement cost liabilities	11,584	11,121
Loss Contingency Accrual	8,104	7,593
Long-term debt	3,233,614	2,895,913
Deferred Credits and Other Liabilities	201,180	74,053
TOTAL	$ 4,441,596	$ 3,919,512
Common Stock, Shares, Outstanding	46,525,000	46,525,000
Common Shareholders' Equity:
Common Stock, Value, Issued	$ 49,452	$ 49,452
Additional Paid in Capital, Common Stock	1,050,125	1,050,125
TOTAL	2,919,376	2,640,711
Stockholders' Equity Attributable to Noncontrolling Interest	38,750	38,750
Retained Earnings (Accumulated Deficit)	1,819,799	1,541,134
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	2,958,126	2,679,461
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	7,822,280	7,043,964
Entergy Texas [Member] | Affiliated Entity
Accounts receivable:
Customer	32,915	115,549
Investments in and Advances to Affiliates, at Fair Value	225	250
System Energy [Member]
Cash and cash equivalents:
Cash	1,291	78
Temporary cash investments	94,502	2,862
Total cash and cash equivalents	95,793	2,940
Accounts receivable:
Other	5,300	6,145
Total accounts receivable	29,656	164,746
Public Utilities, Inventory	160,143	135,346
Deferred nuclear refueling outage costs	13,334	33,377
Prepaid Expense and Other Assets	5,577	9,097
TOTAL	344,770	345,506
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	1,219,196	1,142,914
TOTAL	1,219,196	1,142,914
PROPERTY, PLANT, AND EQUIPMENT
Electric	5,479,592	5,425,449
Construction work in progress	105,468	102,987
Nuclear fuel	138,708	193,004
TOTAL PROPERTY, PLANT, AND EQUIPMENT	5,723,768	5,721,440
Less - accumulated depreciation and amortization	3,467,414	3,412,257
PROPERTY, PLANT, AND EQUIPMENT - NET	2,256,354	2,309,183
Regulatory assets:
Regulatory Assets, Noncurrent	439,419	415,121
Other	793	1,422
Deferred Costs and Other Assets	440,212	416,543
TOTAL ASSETS	4,260,532	4,214,146
CURRENT LIABILITIES
Currently maturing long-term debt	57	300,037
Accounts Payable	19,125	21,701
Accounts payable	32,022	58,178
Taxes Payable, Current	1,815	7,597
Interest accrued	16,162	11,591
Sale-leaseback/depreciation regulatory liability	0	103,497
Other	4,066	4,071
TOTAL	73,247	506,672
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	404,385	376,070
Accumulated deferred investment tax credits	43,660	44,692
Regulatory liability for income taxes - net	108,577	110,840
Other regulatory liabilities	754,803	665,024
Decommissioning and asset retirement cost liabilities	1,073,634	1,042,461
Pension and other postretirement liabilities	26,266	40,750
Long-term debt	745,190	477,868
Deferred Credits and Other Liabilities	2	2
TOTAL	$ 3,156,517	$ 2,757,707
Common Stock, Shares, Outstanding	789,350	789,350
Common Shareholders' Equity:
Common Stock, Value, Issued	$ 1,086,850	$ 1,086,850
Retained Earnings (Accumulated Deficit)	(56,082)	(137,083)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,030,768	949,767
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	4,260,532	4,214,146
Sale-leaseback/depreciation regulatory asset	40,267	0
System Energy [Member] | Affiliated Entity
Accounts receivable:
Customer	$ 24,356	$ 158,601