Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Cash and cash equivalents:
Cash	$ 76,146	$ 44,944
Temporary cash investments	625,445	397,615
Total cash and cash equivalents	701,591	442,559
Accounts receivable:
Customer	668,620	786,866
Allowance for doubtful accounts	(31,486)	(68,608)
Other	171,858	231,843
Accrued unbilled revenues	406,010	420,255
Total accounts receivable	1,215,002	1,370,356
Deferred Fuel Cost	375,670	324,394
Fuel inventory - at average cost	139,780	154,575
Public Utilities, Inventory	1,066,535	1,041,515
Deferred nuclear refueling outage costs	125,192	133,422
Prepaid Expense and Other Assets, Current	215,231	156,774
TOTAL	3,839,001	3,623,595
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	5,210,130	5,514,016
Non-utility property - at cost (less accumulated depreciation)	357,092	357,576
Other	159,728	159,455
TOTAL	5,726,950	6,031,047
PROPERTY, PLANT, AND EQUIPMENT
Electric	63,405,911	64,263,250
Natural gas	666,646	658,989
Construction work in progress	1,556,651	1,511,966
Nuclear fuel	547,706	577,006
TOTAL PROPERTY, PLANT, AND EQUIPMENT	66,176,914	67,011,211
Less - accumulated depreciation and amortization	24,982,767	24,767,051
PROPERTY, PLANT, AND EQUIPMENT - NET	41,194,147	42,244,160
Regulatory assets:
Other regulatory assets	8,037,526	6,613,256
Deferred Fuel Cost Non Current	241,002	240,953
Goodwill	377,172	377,172
Deferred Income Tax Assets, Net	58,388	54,186
Other	359,340	269,873
Deferred Costs and Other Assets	9,073,428	7,555,440
TOTAL ASSETS	59,833,526	59,454,242
CURRENT LIABILITIES
Currently maturing long-term debt	1,039,335	1,039,329
Short-term borrowings	1,342,811	1,201,177
Accounts payable	1,741,052	2,610,132
Contract with Customer, Liability, Current	402,600	395,184
Taxes Payable, Current	339,887	419,828
Interest accrued	224,013	191,151
Deferred fuel costs	0	7,607
Pension and other postretirement liabilities	60,249	68,336
Current portion of regulatory liability for income taxes - net related to unprotected ADIT	35,241	53,385
Other	177,997	204,613
TOTAL	5,363,185	6,190,742
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	4,796,208	4,706,797
Accumulated deferred investment tax credits	209,921	211,975
Regulatory liability for income taxes - net	1,233,417	1,255,692
Other regulatory liabilities	2,433,906	2,643,845
Decommissioning and asset retirement cost liabilities	4,816,524	4,757,084
Loss Contingency Accrual	165,328	157,122
Pension and other postretirement liabilities	1,855,771	1,949,325
Long-term debt	26,176,449	24,841,572
Deferred Credits and Other Liabilities	786,581	815,284
TOTAL	42,474,105	41,338,696
Subsidiaries' preferred stock without sinking fund	219,410	219,410
Proceeds from Issuance of Preferred Stock and Preference Stock	0	0
Common Shareholders' Equity:
Common Stock, Value, Issued	2,720	2,720
Additional Paid in Capital, Common Stock	6,735,154	6,766,239
Accumulated other comprehensive loss	(336,578)	(332,528)
Less - treasury stock, at cost	5,003,087	5,039,699
TOTAL	11,710,103	11,637,284
Stockholders' Equity Attributable to Noncontrolling Interest	66,723	68,110
Retained Earnings (Accumulated Deficit)	10,311,894	10,240,552
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	11,776,826	11,705,394
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	59,833,526	59,454,242
Entergy Arkansas [Member]
Cash and cash equivalents:
Cash	2,852	8,155
Temporary cash investments	107,179	4,760
Total cash and cash equivalents	110,031	12,915
Accounts receivable:
Customer	136,178	154,412
Allowance for doubtful accounts	(6,513)	(13,072)
Associated companies	91,621	29,587
Other	43,337	51,064
Accrued unbilled revenues	95,429	101,663
Total accounts receivable	360,052	323,654
Deferred Fuel Cost	125,767	108,862
Fuel inventory - at average cost	43,693	50,892
Public Utilities, Inventory	262,292	247,980
Deferred nuclear refueling outage costs	51,655	65,318
Prepaid Expense and Other Assets, Current	14,614	14,863
TOTAL	968,104	824,484
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	1,360,604	1,438,416
Other	791	947
TOTAL	1,361,395	1,439,363
PROPERTY, PLANT, AND EQUIPMENT
Electric	13,637,936	13,578,297
Construction work in progress	306,933	241,127
Nuclear fuel	132,841	182,055
TOTAL PROPERTY, PLANT, AND EQUIPMENT	14,077,710	14,001,479
Less - accumulated depreciation and amortization	5,539,188	5,472,296
PROPERTY, PLANT, AND EQUIPMENT - NET	8,538,522	8,529,183
Regulatory assets:
Other regulatory assets	1,696,876	1,689,678
Deferred Fuel Cost Non Current	68,800	68,751
Other	22,042	13,660
Deferred Costs and Other Assets	1,787,718	1,772,089
TOTAL ASSETS	12,655,739	12,565,119
CURRENT LIABILITIES
Associated companies accounts payable	46,527	217,310
Accounts payable	187,777	190,476
Contract with Customer, Liability, Current	95,178	92,511
Taxes Payable, Current	116,799	89,590
Interest accrued	49,341	17,108
Other	40,881	38,901
TOTAL	536,503	645,896
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	1,436,824	1,416,201
Accumulated deferred investment tax credits	28,998	29,299
Regulatory liability for income taxes - net	427,203	431,655
Other regulatory liabilities	656,698	743,314
Decommissioning and asset retirement cost liabilities	1,410,540	1,390,410
Loss Contingency Accrual	76,775	77,084
Pension and other postretirement liabilities	165,903	185,789
Long-term debt	4,163,602	3,958,862
Deferred Credits and Other Liabilities	111,271	110,754
TOTAL	8,477,814	8,343,368
Common Shareholders' Equity:
Members' Equity	3,609,699	3,542,745
Members' Equity Attributable to Noncontrolling Interest	31,723	33,110
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	3,641,422	3,575,855
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	12,655,739	12,565,119
Entergy Louisiana [Member]
Cash and cash equivalents:
Cash	15,933	195
Temporary cash investments	140,714	18,378
Total cash and cash equivalents	156,647	18,573
Accounts receivable:
Customer	256,931	355,265
Allowance for doubtful accounts	(11,092)	(29,231)
Associated companies	159,787	96,539
Other	49,735	36,674
Accrued unbilled revenues	174,038	174,768
Total accounts receivable	629,399	634,015
Deferred Fuel Cost	44,876	45,374
Fuel inventory - at average cost	43,004	42,958
Public Utilities, Inventory	490,752	485,325
Deferred nuclear refueling outage costs	33,947	39,582
Prepaid Expense and Other Assets, Current	58,384	44,187
TOTAL	1,457,009	1,310,014
Investments in and Advances to Affiliates, at Fair Value	1,390,587	1,390,587
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	2,005,369	2,114,523
Non-utility property - at cost (less accumulated depreciation)	338,365	337,247
Other	13,812	13,744
TOTAL	3,748,133	3,856,101
PROPERTY, PLANT, AND EQUIPMENT
Electric	27,252,039	28,055,038
Natural gas	288,820	285,006
Construction work in progress	721,536	847,924
Nuclear fuel	200,163	209,418
TOTAL PROPERTY, PLANT, AND EQUIPMENT	28,462,558	29,397,386
Less - accumulated depreciation and amortization	9,940,422	9,860,252
PROPERTY, PLANT, AND EQUIPMENT - NET	18,522,136	19,537,134
Regulatory assets:
Other regulatory assets	4,113,282	2,776,666
Deferred Fuel Cost Non Current	168,122	168,122
Other	39,358	27,801
Deferred Costs and Other Assets	4,320,762	2,972,589
TOTAL ASSETS	28,048,040	27,675,838
CURRENT LIABILITIES
Currently maturing long-term debt	200,000	200,000
Associated companies accounts payable	81,781	183,172
Accounts payable	872,120	1,481,902
Contract with Customer, Liability, Current	153,109	150,697
Taxes Payable, Current	21,298	64,248
Interest accrued	92,195	93,052
Current portion of regulatory liability for income taxes - net related to unprotected ADIT	15,182	24,291
Other	56,709	68,995
TOTAL	1,492,394	2,266,357
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	2,523,361	2,433,854
Accumulated deferred investment tax credits	101,408	102,588
Regulatory liability for income taxes - net	307,779	313,693
Other regulatory liabilities	990,456	1,042,597
Decommissioning and asset retirement cost liabilities	1,673,809	1,653,198
Loss Contingency Accrual	27,185	24,490
Pension and other postretirement liabilities	516,628	528,213
Long-term debt	11,822,131	10,714,346
Deferred Credits and Other Liabilities	387,083	415,930
TOTAL	18,349,840	17,228,909
Common Shareholders' Equity:
Accumulated other comprehensive loss	7,665	8,278
Members' Equity	8,198,141	8,172,294
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	8,205,806	8,180,572
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	28,048,040	27,675,838
Entergy Mississippi [Member]
Cash and cash equivalents:
Cash	26	29
Temporary cash investments	2	47,598
Total cash and cash equivalents	28	47,627
Accounts receivable:
Customer	86,389	84,048
Allowance for doubtful accounts	(3,396)	(7,209)
Associated companies	5,008	42,994
Other	17,994	14,609
Accrued unbilled revenues	50,404	56,034
Total accounts receivable	156,399	190,476
Deferred Fuel Cost	145,954	121,878
Fuel inventory - at average cost	10,288	10,311
Public Utilities, Inventory	75,509	69,639
Prepaid Expense and Other Assets, Current	40,847	6,394
TOTAL	429,025	446,325
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	4,523	4,527
Escrow accounts	48,888	48,886
TOTAL	53,411	53,413
PROPERTY, PLANT, AND EQUIPMENT
Electric	6,650,580	6,613,109
Construction work in progress	120,538	95,452
TOTAL PROPERTY, PLANT, AND EQUIPMENT	6,771,118	6,708,561
Less - accumulated depreciation and amortization	2,159,949	2,127,590
PROPERTY, PLANT, AND EQUIPMENT - NET	4,611,169	4,580,971
Regulatory assets:
Other regulatory assets	446,131	462,432
Other	18,880	14,248
Deferred Costs and Other Assets	465,011	476,680
TOTAL ASSETS	5,558,616	5,557,389
CURRENT LIABILITIES
Associated companies accounts payable	62,229	42,929
Accounts payable	104,367	113,000
Contract with Customer, Liability, Current	87,307	86,167
Taxes Payable, Current	42,488	106,273
Interest accrued	27,896	17,283
Other	29,735	36,731
TOTAL	354,022	402,383
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	724,154	720,097
Accumulated deferred investment tax credits	10,857	10,913
Regulatory liability for income taxes - net	209,758	212,445
Other regulatory liabilities	73,689	49,313
Decommissioning and asset retirement cost liabilities	10,458	10,315
Loss Contingency Accrual	37,849	38,028
Pension and other postretirement liabilities	55,101	59,065
Long-term debt	2,180,197	2,179,989
Deferred Credits and Other Liabilities	32,608	35,273
TOTAL	3,334,671	3,315,438
Common Shareholders' Equity:
Members' Equity	1,869,923	1,839,568
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,869,923	1,839,568
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	5,558,616	5,557,389
Entergy New Orleans [Member]
Cash and cash equivalents:
Cash	26	26
Temporary cash investments	31,139	42,836
Total cash and cash equivalents	31,165	42,862
Securitization recovery trust account	5,098	1,999
Accounts receivable:
Customer	61,442	69,902
Allowance for doubtful accounts	(7,702)	(13,282)
Associated companies	21,557	74,146
Other	12,590	13,668
Accrued unbilled revenues	24,481	25,550
Total accounts receivable	112,368	169,984
Deferred Fuel Cost	2,352	0
Fuel inventory - at average cost	2,499	2,945
Public Utilities, Inventory	20,610	19,216
Prepaid Expense and Other Assets, Current	15,621	5,428
TOTAL	189,713	242,434
OTHER PROPERTY AND INVESTMENTS
Non-utility property - at cost (less accumulated depreciation)	1,016	1,016
TOTAL	1,016	1,016
PROPERTY, PLANT, AND EQUIPMENT
Electric	1,964,963	1,976,202
Natural gas	377,826	373,983
Construction work in progress	23,047	22,199
TOTAL PROPERTY, PLANT, AND EQUIPMENT	2,365,836	2,372,384
Less - accumulated depreciation and amortization	785,381	774,309
PROPERTY, PLANT, AND EQUIPMENT - NET	1,580,455	1,598,075
Regulatory assets:
Other regulatory assets	223,118	248,617
Deferred Fuel Cost Non Current	4,080	4,080
Other	60,565	56,101
Deferred Costs and Other Assets	287,763	308,798
TOTAL ASSETS	2,058,947	2,150,323
CURRENT LIABILITIES
Notes Payable, Related Parties, Current	1,326	1,326
Associated companies accounts payable	41,135	45,057
Accounts payable	59,501	146,921
Contract with Customer, Liability, Current	29,470	28,539
Taxes Payable, Current	1,582	4,385
Interest accrued	7,378	7,991
Deferred fuel costs	0	7,607
Current portion of regulatory liability for income taxes - net related to unprotected ADIT	0	1,906
Other	6,019	6,204
TOTAL	146,411	249,936
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	375,056	365,384
Accumulated deferred investment tax credits	16,297	16,306
Regulatory liability for income taxes - net	39,208	40,589
Decommissioning and asset retirement cost liabilities	0	4,032
Loss Contingency Accrual	12,553	6,329
Long-term debt	777,590	777,254
Notes Payable, Related Parties, Noncurrent	9,585	9,585
Deferred Credits and Other Liabilities	28,406	42,193
TOTAL	1,258,695	1,261,672
Common Shareholders' Equity:
Members' Equity	653,841	638,715
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	653,841	638,715
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	2,058,947	2,150,323
Entergy Texas [Member]
Cash and cash equivalents:
Total cash and cash equivalents	26	28
Securitization recovery trust account	9,998	26,629
Accounts receivable:
Customer	88,964	83,797
Allowance for doubtful accounts	(2,783)	(5,814)
Associated companies	15,868	31,720
Other	23,315	13,404
Accrued unbilled revenues	61,658	62,241
Total accounts receivable	187,022	185,348
Deferred Fuel Cost	56,720	48,280
Fuel inventory - at average cost	34,673	42,712
Public Utilities, Inventory	73,415	72,884
Prepaid Expense and Other Assets, Current	23,902	17,515
TOTAL	385,756	393,396
OTHER PROPERTY AND INVESTMENTS
Investment in affiliates - at equity	287	300
Non-utility property - at cost (less accumulated depreciation)	376	376
Other	17,730	18,128
TOTAL	18,393	18,804
PROPERTY, PLANT, AND EQUIPMENT
Electric	7,071,317	7,181,567
Construction work in progress	207,167	183,965
TOTAL PROPERTY, PLANT, AND EQUIPMENT	7,278,484	7,365,532
Less - accumulated depreciation and amortization	2,053,212	2,049,750
PROPERTY, PLANT, AND EQUIPMENT - NET	5,225,272	5,315,782
Regulatory assets:
Other regulatory assets	556,412	421,333
Other	119,734	112,096
Deferred Costs and Other Assets	676,146	533,429
TOTAL ASSETS	6,305,567	6,261,411
CURRENT LIABILITIES
Associated companies accounts payable	225,441	142,929
Accounts payable	140,760	164,981
Contract with Customer, Liability, Current	37,535	37,271
Taxes Payable, Current	33,830	49,018
Interest accrued	7,807	19,002
Current portion of regulatory liability for income taxes - net related to unprotected ADIT	20,059	27,188
Other	15,797	16,120
TOTAL	481,229	456,509
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	695,150	692,496
Accumulated deferred investment tax credits	9,172	9,325
Regulatory liability for income taxes - net	137,959	144,145
Other regulatory liabilities	38,884	37,060
Decommissioning and asset retirement cost liabilities	8,638	8,520
Loss Contingency Accrual	8,296	8,242
Long-term debt	2,325,371	2,354,148
Deferred Credits and Other Liabilities	67,777	67,760
TOTAL	$ 3,291,247	$ 3,321,696
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	2,494,341	2,444,456
Stockholders' Equity Attributable to Noncontrolling Interest	38,750	38,750
Retained Earnings (Accumulated Deficit)	1,394,764	1,344,879
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	2,533,091	2,483,206
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	6,305,567	6,261,411
System Energy [Member]
Cash and cash equivalents:
Cash	72	87
Temporary cash investments	98,183	89,114
Total cash and cash equivalents	98,255	89,201
Accounts receivable:
Associated companies	102,258	118,977
Other	8,961	7,003
Total accounts receivable	111,219	125,980
Public Utilities, Inventory	124,639	127,093
Deferred nuclear refueling outage costs	32,250	10,123
Prepaid Expense and Other Assets, Current	2,843	1,870
TOTAL	369,206	354,267
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	1,308,172	1,385,254
TOTAL	1,308,172	1,385,254
PROPERTY, PLANT, AND EQUIPMENT
Electric	5,357,646	5,362,494
Construction work in progress	149,025	97,968
Nuclear fuel	210,446	171,438
TOTAL PROPERTY, PLANT, AND EQUIPMENT	5,717,117	5,631,900
Less - accumulated depreciation and amortization	3,414,249	3,396,136
PROPERTY, PLANT, AND EQUIPMENT - NET	2,302,868	2,235,764
Regulatory assets:
Other regulatory assets	397,877	395,546
Other	1,728	1,793
Deferred Costs and Other Assets	399,605	397,339
TOTAL ASSETS	4,379,851	4,372,624
CURRENT LIABILITIES
Currently maturing long-term debt	50,335	50,329
Associated companies accounts payable	11,736	23,682
Accounts payable	70,571	62,573
Taxes Payable, Current	38,857	32,918
Interest accrued	11,239	11,714
Other	4,101	4,101
TOTAL	186,839	185,317
NON-CURRENT LIABILITIES
Deferred Income Tax Liabilities, Net	373,447	382,931
Accumulated deferred investment tax credits	42,684	43,003
Regulatory liability for income taxes - net	111,511	113,165
Other regulatory liabilities	660,943	744,944
Decommissioning and asset retirement cost liabilities	1,017,520	1,007,603
Pension and other postretirement liabilities	71,562	76,104
Long-term debt	755,018	690,967
Deferred Credits and Other Liabilities	37,535	37,230
TOTAL	$ 3,070,220	$ 3,095,947
Common Stock, Shares, Outstanding	789,350	789,350
Common Shareholders' Equity:
Common Stock, Value, Issued	$ 951,850	$ 951,850
Retained Earnings (Accumulated Deficit)	170,942	139,510
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,122,792	1,091,360
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 4,379,851	$ 4,372,624