Schedule II - Valuation And Qualifying Accounts (Details) - Allowance for Doubtful Accounts Receivable [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 117,794	$ 7,404	$ 7,322
Valuation Allowances And Reserves Charged To Cost And Expense And Other Accounts	57,517	111,687	2,806
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	106,703	1,297	2,724
Balance at End of Period	68,608	117,794	7,404
Entergy Arkansas [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	18,334	1,169	1,264
Valuation Allowances And Reserves Charged To Cost And Expense And Other Accounts	30,433	17,307	1,000
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	35,695	142	1,095
Balance at End of Period	13,072	18,334	1,169
Entergy New Orleans [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	17,430	3,226	3,222
Valuation Allowances And Reserves Charged To Cost And Expense And Other Accounts	6,850	14,204	316
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	10,998	0	312
Balance at End of Period	13,282	17,430	3,226
Entergy Mississippi [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	19,527	636	563
Valuation Allowances And Reserves Charged To Cost And Expense And Other Accounts	850	19,081	406
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	13,168	190	333
Balance at End of Period	7,209	19,527	636
Entergy Louisiana [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	45,693	1,902	1,813
Valuation Allowances And Reserves Charged To Cost And Expense And Other Accounts	17,219	44,542	762
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	33,681	751	673
Balance at End of Period	29,231	45,693	1,902
Entergy Texas [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	16,810	471	461
Valuation Allowances And Reserves Charged To Cost And Expense And Other Accounts	2,166	16,554	321
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	13,162	215	311
Balance at End of Period	$ 5,814	$ 16,810	$ 471