Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands			1 Months Ended	12 Months Ended
	Jan. 01, 2018	Dec. 31, 2017	Sep. 30, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2017
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss) Available to Common Stockholders, Basic				$ 1,055,590	$ 2,356,536	$ 1,103,166
Preferred dividend requirements of subsidiaries and net income (loss) attributable to noncontrolling interests				5,594	5,774	(6,028)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				1,061,184	2,362,310	1,097,138
Income Tax Expense (Benefit)			$ 9,000	381,027	(690,535)	(38,978)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				$ 1,442,211	$ 1,671,775	$ 1,058,160
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	35.00%		21.00%	21.00%	21.00%	35.00%
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 302,864	$ 351,073	$ 222,214
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				81,377	70,144	61,368
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				28,636	0	0
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount				(780)	(8,697)	(2,754)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				3,737	3,836	3,656
Effective Income Tax Rate Reconciliation, Tax Settlement, State and Local, Amount				(9,057)	0	0
Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, Amount				$ 0	$ (842,769)	$ 0
Effective Income Tax Rate Reconciliation, Percent				26.40%	(41.30%)	(3.70%)
Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (30,288)	$ (27,901)	$ (32,143)
Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				(27,343)	(20,172)	(14,156)
Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				(8,808)	(7,978)	(7,740)
Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				33	(1,374)	1,011
Amortization of Excess ADIT [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				19,169	9,102	(34,899)
Reversal of regulatory liability [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				0	(105,649)	0
Entergy Louisiana securitization [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				0	(129,034)	(282,620)
System Energy sale-leaseback order [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				0	0	12,662
Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				21,487	18,884	34,423
Entergy Arkansas [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				319,466	396,850	292,887
Income Tax Expense (Benefit)				74,574	(99,210)	80,896
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				394,040	297,640	373,783
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				82,748	62,504	78,494
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				13,940	13,291	17,981
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				0
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount						(1,258)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				1,073	1,079	1,077
Effective Income Tax Rate Reconciliation, Tax Settlement, State and Local, Amount				(18,276)
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount				$ 0	0	$ 0
Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, Amount					$ (159,588)
Effective Income Tax Rate Reconciliation, Percent				18.90%	(33.30%)	21.60%
Entergy Arkansas [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (9,885)	$ (8,812)	$ (12,466)
Entergy Arkansas [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				(6,032)	(4,093)	(3,437)
Entergy Arkansas [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				1,201	1,201	1,201
Entergy Arkansas [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				214	1,105	106
Entergy Arkansas [Member] | Amortization of Excess ADIT [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				10,193	(6,095)	0
Entergy Arkansas [Member] | Reversal of regulatory liability [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					0
Entergy Arkansas [Member] | Entergy Louisiana securitization [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					0	0
Entergy Arkansas [Member] | System Energy sale-leaseback order [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount						0
Entergy Arkansas [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				1,800	2,600	1,600
Entergy Louisiana [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				890,771	1,273,370	855,870
Income Tax Expense (Benefit)				225,409	(205,781)	(162,853)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				1,116,180	1,067,589	693,017
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%						35.00%
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				234,398	224,194	145,534
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				50,760	51,899	44,244
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				16,307
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount						0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				1,529	1,601	1,590
Effective Income Tax Rate Reconciliation, Tax Settlement, State and Local, Amount				0
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount				$ (64,982)	(62,116)	$ (38,735)
Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, Amount					$ (179,111)
Effective Income Tax Rate Reconciliation, Percent				20.20%	(19.30%)	(23.50%)
Entergy Louisiana [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (9,988)	$ (5,535)	$ (6,347)
Entergy Louisiana [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				(7,513)	(6,754)	(5,513)
Entergy Louisiana [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				4,563	4,625	4,720
Entergy Louisiana [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				(3,244)	126	3,467
Entergy Louisiana [Member] | Amortization of Excess ADIT [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				9,305	14,032	(13,164)
Entergy Louisiana [Member] | Reversal of regulatory liability [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					(105,649)
Entergy Louisiana [Member] | Entergy Louisiana securitization [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					(133,443)	(289,609)
Entergy Louisiana [Member] | System Energy sale-leaseback order [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount						0
Entergy Louisiana [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				3,400	(400)	400
Entergy Mississippi [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				245,407	181,969	176,267
Income Tax Expense (Benefit)				80,315	54,364	54,864
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				325,722	236,333	231,131
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				68,402	49,630	48,538
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				13,210	11,133	9,659
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				0
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount						0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				365	367	365
Effective Income Tax Rate Reconciliation, Tax Settlement, State and Local, Amount				0
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount				$ 0	0	$ 0
Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, Amount					$ (3,291)
Effective Income Tax Rate Reconciliation, Percent				24.70%	23.00%	23.70%
Entergy Mississippi [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (3,572)	$ (5,290)	$ (7,726)
Entergy Mississippi [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				(1,910)	(1,796)	(1,286)
Entergy Mississippi [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				267	223	223
Entergy Mississippi [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				2,987	3,534	4,837
Entergy Mississippi [Member] | Amortization of Excess ADIT [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				0	0	0
Entergy Mississippi [Member] | Reversal of regulatory liability [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					0
Entergy Mississippi [Member] | Entergy Louisiana securitization [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					0	0
Entergy Mississippi [Member] | System Energy sale-leaseback order [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount						0
Entergy Mississippi [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				1,100	300	700
Entergy New Orleans [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				15,847	228,938	64,101
Income Tax Expense (Benefit)				2,842	(189,973)	24,277
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				18,689	38,965	88,378
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				3,925	8,183	18,559
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				1,248	1,907	6,733
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				242
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount						0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				211	214	214
Effective Income Tax Rate Reconciliation, Tax Settlement, State and Local, Amount				0
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount				$ 0	0	$ 0
Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, Amount					$ (198,424)
Effective Income Tax Rate Reconciliation, Percent				15.20%	(487.50%)	27.50%
Entergy New Orleans [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (830)	$ (1,353)	$ (1,908)
Entergy New Orleans [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				(445)	(309)	(174)
Entergy New Orleans [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				839	25	(175)
Entergy New Orleans [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				(338)	(1,913)	230
Entergy New Orleans [Member] | Amortization of Excess ADIT [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				(332)	1,147	(752)
Entergy New Orleans [Member] | Reversal of regulatory liability [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					0
Entergy New Orleans [Member] | Entergy Louisiana securitization [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					0	0
Entergy New Orleans [Member] | System Energy sale-leaseback order [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount						0
Entergy New Orleans [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					600	1,200
Entergy Texas [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss) Available to Common Stockholders, Basic				291,550	289,201	301,255
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				293,622	291,273	303,327
Income Tax Expense (Benefit)				65,684	62,872	50,621
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				359,306	354,145	353,948
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				75,454	74,370	74,329
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				5,164	2,574	2,175
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				0
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount						0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				377	381	380
Effective Income Tax Rate Reconciliation, Tax Settlement, State and Local, Amount				0
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount				$ 0	0	$ 0
Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, Amount					$ (3,112)
Effective Income Tax Rate Reconciliation, Percent				18.30%	17.80%	14.30%
Entergy Texas [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (4,537)	$ (6,394)	$ (3,010)
Entergy Texas [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				(10,045)	(5,920)	(2,841)
Entergy Texas [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				748	748	614
Entergy Texas [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				(760)	1,493	765
Entergy Texas [Member] | Amortization of Excess ADIT [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				2	17	(20,983)
Entergy Texas [Member] | Reversal of regulatory liability [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					0
Entergy Texas [Member] | Entergy Louisiana securitization [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					0	0
Entergy Texas [Member] | System Energy sale-leaseback order [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount						0
Entergy Texas [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				777	211	420
System Energy [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				103,500	108,772	(276,593)
Income Tax Expense (Benefit)				29,503	32,032	(92,828)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				133,003	140,804	(369,421)
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				27,931	29,569	(77,578)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				4,936	5,798	(16,727)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				0
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount						0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				202	204	202
Effective Income Tax Rate Reconciliation, Tax Settlement, State and Local, Amount				0
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount				$ 0	0	$ 0
Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, Amount					$ (1,575)
Effective Income Tax Rate Reconciliation, Percent				22.20%	22.70%	25.10%
System Energy [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,475)	$ (517)	$ (686)
System Energy [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				(1,398)	(1,301)	(905)
System Energy [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				1,155	1,155	1,155
System Energy [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				(538)	(191)	(641)
System Energy [Member] | Amortization of Excess ADIT [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				0	0	0
System Energy [Member] | Reversal of regulatory liability [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					0
System Energy [Member] | Entergy Louisiana securitization [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					0	0
System Energy [Member] | System Energy sale-leaseback order [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount						12,662
System Energy [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 1,000	$ 1,200	$ (8,000)