Rate And Regulatory Matters Rate and Regulatory Matters (Details of Other Regulatory Liabilities Included in Entergy Corporation and Subsidiaries) (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2018	Dec. 31, 2017
Regulatory Liabilities [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%					35.00%	35.00%
Regulatory Liability, Noncurrent			$ 2,324,590	$ 2,643,845
Increase (Decrease) in Regulatory Liabilities			266,559	(43,631)	$ (238,669)
Unrealized Gain on Nuclear Decommissioning Trust Funds [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			1,237,900	1,993,300
Asset Retirement Obligation Costs [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			43,500	45,500
Vidalia Purchased Power Agreement [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			95,400	106,200
Increase (Decrease) in Regulatory Liabilities		$ 30,500
Other Regulatory Assets (Liabilities) [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			101,900	126,800
Grand Gulf Sale Leaseback [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			0	55,600
Grand Gulf Over-Recovery [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			180,200	126,500
Louisiana Act 55 Financing Obligation [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			327,700	127,400
Deferred Tax Equity Partnership Earnings
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			43,800	18,100
Unit Power Sales Agreement [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			249,800	0
Entergy Arkansas’s Accumulated Accelerated Grand Gulf Amortization [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			44,400	44,400
Entergy Louisiana [Member]
Regulatory Liabilities [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent					21.00%
Regulatory Liability, Noncurrent			1,037,962	1,042,597
Increase (Decrease) in Regulatory Liabilities			4,783	16,478	$ (71,698)
Entergy Louisiana [Member] | Unrealized Gain on Nuclear Decommissioning Trust Funds [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			438,900	692,200
Entergy Louisiana [Member] | Asset Retirement Obligation Costs [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			43,500	45,500
Entergy Louisiana [Member] | Vidalia Purchased Power Agreement [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			95,400	106,200
Entergy Louisiana [Member] | Other Regulatory Assets (Liabilities) [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			18,300	13,200
Entergy Louisiana [Member] | Business Combination Guaranteed Customer Benefits [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			10,500	16,000
Entergy Louisiana [Member] | Grand Gulf Over-Recovery [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			87,700	30,700
Entergy Louisiana [Member] | Louisiana Act 55 Financing Obligation [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			327,700	127,400
Entergy Louisiana [Member] | Derivative Instruments & Hedging Activities
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			16,000	11,400
Entergy Arkansas [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			475,758	743,314
Increase (Decrease) in Regulatory Liabilities			264,054	(21,066)	(106,878)
Entergy Arkansas [Member] | Unrealized Gain on Nuclear Decommissioning Trust Funds [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			428,200	685,400
Entergy Arkansas [Member] | Internal Restructuring Guaranteed Credits to Customers [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			13,200	19,800
Entergy Arkansas [Member] | Other Regulatory Assets (Liabilities) [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			8,100	1,100
Entergy Arkansas [Member] | Grand Gulf Over-Recovery [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			3,900	18,900
Entergy Arkansas [Member] | Deferred Tax Equity Partnership Earnings
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			22,400	18,100
Entergy Mississippi [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			79,865	49,313
Increase (Decrease) in Regulatory Liabilities			(20,165)	(21,930)	18,672
Entergy Mississippi [Member] | Grand Gulf Over-Recovery [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			0	15,100
Entergy Mississippi [Member] | Other Regulatory Assets (Liabilities) [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			300	0
Entergy Mississippi [Member] | Grand Gulf Over-Recovery [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			58,200	34,200
Entergy Mississippi [Member] | Deferred Tax Equity Partnership Earnings
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			21,400	0
Entergy New Orleans [Member]
Regulatory Liabilities [Line Items]
Increase (Decrease) in Regulatory Liabilities			8,639	(4,985)	4,728
Entergy Texas [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			45,247	37,060
Increase (Decrease) in Regulatory Liabilities			30,499	28,747	57,477
Entergy Texas [Member] | Grand Gulf Over-Recovery [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			10,900	1,700
Entergy Texas [Member] | Income Tax Rate Change [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			0	2,700
Entergy Texas [Member] | Advanced Metering System Surcharge [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			0	7,300
Entergy Texas [Member] | Retail refunds
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			25,500	25,000
Entergy Texas [Member] | Securitization Over-Recovery
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			8,800	400
System Energy [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			665,024	744,944
Increase (Decrease) in Regulatory Liabilities			(21,252)	(40,884)	$ (140,965)
System Energy [Member] | Unrealized Gain on Nuclear Decommissioning Trust Funds [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			370,800	615,700
System Energy [Member] | Entergy Mississippi’s accumulated accelerated Grand Gulf amortization [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			0	3,600
System Energy [Member] | Grand Gulf Sale Leaseback [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			0	55,600
System Energy [Member] | Grand Gulf Sale Leaseback accumulated deferred income taxes
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			0	25,600
System Energy [Member] | Unit Power Sales Agreement [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			249,800	0
Regulatory Liability, Current			103,500
System Energy [Member] | Entergy Arkansas’s Accumulated Accelerated Grand Gulf Amortization [Member]
Regulatory Liabilities [Line Items]
Regulatory Liability, Noncurrent			$ 44,400	$ 44,400