Income Taxes (Schedule Of Statutory Income Tax Rate To Income Before Taxes) (Details) - USD ($) $ in Thousands		12 Months Ended
	Jan. 01, 2018	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2017
Net Income (Loss)		$ 2,356,536	$ 1,103,166	$ 1,118,492
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable		5,774	(6,028)	227
Consolidated net income		2,362,310	1,097,138	1,118,719
Income Tax Expense (Benefit)		(690,535)	(38,978)	191,374
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest		$ 1,671,775	1,058,160	1,310,093
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%				35.00%	35.00%
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount		$ 351,073	222,214	275,120
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount		70,144	61,368	79,273
Effective Income Tax Rate Reconciliation, Regulatory Differences Utility Plant Items		(27,901)	(32,143)	(57,556)
Effective Income Tax Rate Reconciliation, Equity Component Of Allowance For Funds Used During Construction		(20,172)	(14,156)	(14,799)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount		7,978	7,740	7,695
Effective Income Tax Rate Reconciliation, Flow Through Permanent Differences		(1,374)	1,011	(5,585)
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount		842,769	0	0
Effective Income Tax Rate Reconciliation, Amortization of Excess ADIT		9,102	(34,899)	(66,478)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount		0	0	27,108
Effective Income Tax Rate Reconciliation, Provision For Uncertain Tax Positions		18,884	34,423	16,533
Effective Income Tax Rate Reconciliation, Valuation allowance		(8,697)	(2,754)	(2,600)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount		$ 3,836	$ 3,656	$ 2,269
Effective Income Tax Rate Reconciliation, Percent		(41.30%)	(3.70%)	14.60%
Effective Income Tax Rate Reconciliation, Entergy Louisiana securitization		$ 129,034	$ 282,620	$ 0
Effective Income Tax Rate Reconciliation, Reversal of Regulatory Liability for Excess ADIT		105,649	0	0
Effective Income Tax Rate Reconciliation, System Energy Sale-Leaseback Order		0	(12,662)	0
Entergy Arkansas [Member]
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable		(5,231)	(4,358)	(18,092)
Consolidated net income		396,850	292,887	298,484
Income Tax Expense (Benefit)		(99,210)	80,896	75,195
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest		297,640	373,783	373,679
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		297,640	373,783	373,679
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount		62,504	78,494	78,473
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount		13,291	17,981	19,633
Effective Income Tax Rate Reconciliation, Regulatory Differences Utility Plant Items		(8,812)	(12,466)	(16,078)
Effective Income Tax Rate Reconciliation, Equity Component Of Allowance For Funds Used During Construction		(4,093)	(3,437)	(3,207)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount		1,201	1,201	1,201
Effective Income Tax Rate Reconciliation, Flow Through Permanent Differences		1,105	106	(814)
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount		(159,588)
Effective Income Tax Rate Reconciliation, Amortization of Excess ADIT		(6,095)	0	(5,845)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				398
Effective Income Tax Rate Reconciliation, Provision For Uncertain Tax Positions		2,600	1,600	353
Effective Income Tax Rate Reconciliation, Valuation allowance			(1,258)	2,766
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount		$ 1,079	$ 1,077	$ 717
Effective Income Tax Rate Reconciliation, Percent		(33.30%)	21.60%	20.10%
Effective Income Tax Rate Reconciliation, Non-taxable dividend income		$ 0	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Entergy Louisiana securitization		0	0
Effective Income Tax Rate Reconciliation, Reversal of Regulatory Liability for Excess ADIT		0
Effective Income Tax Rate Reconciliation, System Energy Sale-Leaseback Order			0
Entergy Louisiana [Member]
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable		2,988	1,366	0
Consolidated net income		1,273,370	855,870	653,984
Income Tax Expense (Benefit)		(205,781)	(162,853)	120,409
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest		1,067,589	693,017	774,393
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent					21.00%
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		1,067,589	693,017	774,393
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount		224,194	145,534	162,623
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount		51,899	44,244	41,030
Effective Income Tax Rate Reconciliation, Regulatory Differences Utility Plant Items		(5,535)	(6,347)	(14,123)
Effective Income Tax Rate Reconciliation, Equity Component Of Allowance For Funds Used During Construction		(6,754)	(5,513)	(6,016)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount		4,625	4,720	4,729
Effective Income Tax Rate Reconciliation, Flow Through Permanent Differences		126	3,467	(2,655)
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount		179,111
Effective Income Tax Rate Reconciliation, Amortization of Excess ADIT		14,032	(13,164)	(24,323)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				(6,126)
Effective Income Tax Rate Reconciliation, Provision For Uncertain Tax Positions		(400)	400	300
Effective Income Tax Rate Reconciliation, Valuation allowance			0	0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount		$ 1,601	$ 1,590	$ 1,229
Effective Income Tax Rate Reconciliation, Percent		(19.30%)	(23.50%)	15.50%
Effective Income Tax Rate Reconciliation, Non-taxable dividend income		$ (62,116)	$ (38,735)	$ (26,801)
Effective Income Tax Rate Reconciliation, Entergy Louisiana securitization		(133,443)	(289,609)
Effective Income Tax Rate Reconciliation, Reversal of Regulatory Liability for Excess ADIT		(105,649)
Effective Income Tax Rate Reconciliation, System Energy Sale-Leaseback Order			0
Entergy Mississippi [Member]
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable		(10,302)	(21,355)	0
Consolidated net income		181,969	176,267	166,834
Income Tax Expense (Benefit)		54,364	54,864	45,323
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest		236,333	231,131	212,157
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		236,333	231,131	212,157
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount		49,630	48,538	44,553
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount		11,133	9,659	9,305
Effective Income Tax Rate Reconciliation, Regulatory Differences Utility Plant Items		(5,290)	(7,726)	(8,133)
Effective Income Tax Rate Reconciliation, Equity Component Of Allowance For Funds Used During Construction		(1,796)	(1,286)	(1,701)
Effective Income Tax Rate Reconciliation, Tax Charge, Amount				(64)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount		223	223
Effective Income Tax Rate Reconciliation, Flow Through Permanent Differences		3,534	4,837	124
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount		3,291
Effective Income Tax Rate Reconciliation, Amortization of Excess ADIT		0	0	0
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				395
Effective Income Tax Rate Reconciliation, Provision For Uncertain Tax Positions		300	700	465
Effective Income Tax Rate Reconciliation, Valuation allowance			0	0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount		$ 367	$ 365	$ 251
Effective Income Tax Rate Reconciliation, Percent		23.00%	23.70%	21.40%
Effective Income Tax Rate Reconciliation, Non-taxable dividend income		$ 0	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Entergy Louisiana securitization		0	0
Effective Income Tax Rate Reconciliation, Reversal of Regulatory Liability for Excess ADIT		0
Effective Income Tax Rate Reconciliation, System Energy Sale-Leaseback Order			0
Entergy New Orleans [Member]
Consolidated net income		228,938	64,101	31,798
Income Tax Expense (Benefit)		(189,973)	24,277	5,936
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest		38,965	88,378	37,734
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		38,965	88,378	37,734
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount		8,183	18,559	7,924
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount		1,907	6,733	2,579
Effective Income Tax Rate Reconciliation, Regulatory Differences Utility Plant Items		(1,353)	(1,908)	(4,332)
Effective Income Tax Rate Reconciliation, Equity Component Of Allowance For Funds Used During Construction		(309)	(174)	(498)
Effective Income Tax Rate Reconciliation, Tax Charge, Amount			(175)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount		25		56
Effective Income Tax Rate Reconciliation, Flow Through Permanent Differences		(1,913)	230	1,559
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount		198,424
Effective Income Tax Rate Reconciliation, Amortization of Excess ADIT		1,147	(752)	(1,028)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				(1,569)
Effective Income Tax Rate Reconciliation, Provision For Uncertain Tax Positions		600	1,200	1,200
Effective Income Tax Rate Reconciliation, Valuation allowance			0	0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount		$ 214	$ 214	$ 157
Effective Income Tax Rate Reconciliation, Percent		(487.50%)	27.50%	15.70%
Effective Income Tax Rate Reconciliation, Non-taxable dividend income		$ 0	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Entergy Louisiana securitization		0	0
Effective Income Tax Rate Reconciliation, Reversal of Regulatory Liability for Excess ADIT		0
Effective Income Tax Rate Reconciliation, System Energy Sale-Leaseback Order			0
Entergy Texas [Member]
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable		2,072	2,072	1,909
Consolidated net income		291,273	303,327	228,824
Income Tax Expense (Benefit)		62,872	50,621	25,526
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest		354,145	353,948	254,350
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		354,145	353,948	254,350
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount		74,370	74,329	53,413
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount		2,574	2,175	1,553
Effective Income Tax Rate Reconciliation, Regulatory Differences Utility Plant Items		(6,394)	(3,010)	(2,115)
Effective Income Tax Rate Reconciliation, Equity Component Of Allowance For Funds Used During Construction		(5,920)	(2,841)	(2,077)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount		748	614	617
Effective Income Tax Rate Reconciliation, Flow Through Permanent Differences		1,493	765	(475)
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount		3,112
Effective Income Tax Rate Reconciliation, Amortization of Excess ADIT		17	(20,983)	(21,929)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				216
Effective Income Tax Rate Reconciliation, Provision For Uncertain Tax Positions		211	420	(2,716)
Effective Income Tax Rate Reconciliation, Valuation allowance			0	0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount		$ 381	$ 380	$ 273
Effective Income Tax Rate Reconciliation, Percent		17.80%	14.30%	10.00%
Effective Income Tax Rate Reconciliation, Non-taxable dividend income		$ 0	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Entergy Louisiana securitization		0	0
Effective Income Tax Rate Reconciliation, Reversal of Regulatory Liability for Excess ADIT		0
Effective Income Tax Rate Reconciliation, System Energy Sale-Leaseback Order			0
System Energy [Member]
Consolidated net income		108,772	(276,593)	106,814
Income Tax Expense (Benefit)		32,032	(92,828)	(1,977)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest		140,804	(369,421)	104,837
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		140,804	(369,421)	104,837
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount		29,569	(77,578)	22,016
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount		5,798	(16,727)	5,385
Effective Income Tax Rate Reconciliation, Regulatory Differences Utility Plant Items		(517)	(686)	(12,776)
Effective Income Tax Rate Reconciliation, Equity Component Of Allowance For Funds Used During Construction		(1,301)	(905)	(1,300)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount		1,155	1,155	1,155
Effective Income Tax Rate Reconciliation, Flow Through Permanent Differences		(191)	(641)	(1,235)
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount		1,575
Effective Income Tax Rate Reconciliation, Amortization of Excess ADIT		0	0	(13,354)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				115
Effective Income Tax Rate Reconciliation, Provision For Uncertain Tax Positions		1,200	(8,000)	200
Effective Income Tax Rate Reconciliation, Valuation allowance			0	0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount		$ 204	$ 202	$ 127
Effective Income Tax Rate Reconciliation, Percent		22.70%	25.10%	(1.90%)
Effective Income Tax Rate Reconciliation, Non-taxable dividend income		$ 0	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Entergy Louisiana securitization		0	0
Effective Income Tax Rate Reconciliation, Reversal of Regulatory Liability for Excess ADIT		$ 0
Effective Income Tax Rate Reconciliation, System Energy Sale-Leaseback Order			$ 12,662