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, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2017
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss) Available to Common Stockholders, Basic				$ 1,758,272	$ 1,055,590	$ 2,356,536
Preferred dividend requirements of subsidiaries and net income (loss) attributable to noncontrolling interests				15,056	5,594	5,774
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				1,773,328	1,061,184	2,362,310
Income Tax Expense (Benefit)			$ 9,000	497,952	381,027	(690,535)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				$ 2,271,280	$ 1,442,211	$ 1,671,775
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	35.00%		21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 476,969	$ 302,864	$ 351,073
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				4.10%	5.60%	4.20%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 92,942	$ 81,377	$ 70,144
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.10%	0.30%	0.20%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				$ 0	$ 28,636	$ 0
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount				4,134	(780)	(8,697)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 3,362	$ 3,737	$ 3,836
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent				0.20%	(0.10%)	(0.50%)
Effective Income Tax Rate Reconciliation, Tax Settlement, State and Local, Percent				0.00%	(0.60%)	0.00%
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(50.40%)
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount				$ 0	$ 0	$ (842,769)
Effective Income Tax Rate Reconciliation, Tax Settlement, State and Local, Amount				$ 0	$ (9,057)	$ 0
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent				0.00%	2.00%	0.00%
Effective Income Tax Rate Reconciliation, Percent				21.90%	26.40%	(41.30%)
Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.30%)	(2.10%)	(1.70%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (30,443)	$ (30,288)	$ (27,901)
Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.60%)	(1.90%)	(1.20%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (37,357)	$ (27,343)	$ (20,172)
Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.40%)	(0.60%)	(0.50%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (8,067)	$ (8,808)	$ (7,978)
Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.40%	0.00%	(0.10%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 9,925	$ 33	$ (1,374)
Amortization of Excess ADIT [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.10%)	1.30%	0.50%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (25,947)	$ 19,169	$ 9,102
Reversal of regulatory liability [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.00%	0.00%	(6.30%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 0	$ 0	$ (105,649)
Entergy Louisiana securitization [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.00%	0.00%	(7.70%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 0	$ 0	$ (129,034)
Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.50%	1.50%	1.10%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 12,434	$ 21,487	$ 18,884
Entergy Arkansas [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss) Attributable to Noncontrolling Interest				(3,079)	(5,300)	(5,231)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				437,453	319,466	396,850
Income Tax Expense (Benefit)				107,880	74,574	(99,210)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				$ 545,333	$ 394,040	$ 297,640
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 114,520	$ 82,748	$ 62,504
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				3.60%	3.50%	4.50%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 19,388	$ 13,940	$ 13,291
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.20%	0.30%	0.40%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount				$ 1,462	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 1,054	$ 1,073	$ 1,079
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent				0.30%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Tax Settlement, State and Local, Percent				0.00%	(4.60%)	0.00%
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(53.60%)
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount				$ 0	$ 0	$ (159,588)
Effective Income Tax Rate Reconciliation, Tax Settlement, State and Local, Amount				$ 0	$ (18,276)	$ 0
Effective Income Tax Rate Reconciliation, Percent				19.80%	18.90%	(33.30%)
Net Income (Loss)				$ 440,532	$ 324,766	$ 402,081
Entergy Arkansas [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.50%)	(2.50%)	(3.00%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (8,085)	$ (9,885)	$ (8,812)
Entergy Arkansas [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.90%)	(1.50%)	(1.40%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (4,934)	$ (6,032)	$ (4,093)
Entergy Arkansas [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.20%)	(0.30%)	(0.40%)
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, Percent				(0.30%)	0.10%	0.40%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,866)	$ 214	$ 1,105
Entergy Arkansas [Member] | Amortization of Excess ADIT [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(2.10%)	2.60%	(2.00%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (11,276)	$ 10,193	$ (6,095)
Entergy Arkansas [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.20%)	0.50%	0.90%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,182)	$ 1,800	$ 2,600
Entergy Louisiana [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss) Attributable to Noncontrolling Interest				2,952	3,126	2,988
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				1,112,900	890,771	1,273,370
Income Tax Expense (Benefit)				237,813	225,409	(205,781)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				$ 1,350,713	$ 1,116,180	$ 1,067,589
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%			21.00%	21.00%	21.00%	35.00%
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 283,650	$ 234,398	$ 224,194
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				3.70%	4.50%	4.90%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 49,965	$ 50,760	$ 51,899
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.10%	0.10%	0.10%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				$ 0	$ 16,307	$ 0
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount				5	0	0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 1,181	$ 1,529	$ 1,601
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent				0.00%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(16.80%)
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount				$ 0	$ 0	$ (179,111)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent				0.00%	1.50%	0.00%
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent				(4.50%)	(5.80%)	(5.80%)
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount				$ (61,352)	$ (64,982)	$ (62,116)
Effective Income Tax Rate Reconciliation, Percent				17.60%	20.20%	(19.30%)
Net Income (Loss)				$ 1,109,948	$ 887,645	$ 1,270,382
Entergy Louisiana [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.70%)	(0.90%)	(0.50%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (10,069)	$ (9,988)	$ (5,535)
Entergy Louisiana [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.80%)	(0.70%)	(0.60%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (11,327)	$ (7,513)	$ (6,754)
Entergy Louisiana [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.30%)	(0.40%)	(0.40%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (4,502)	$ (4,563)	$ (4,625)
Entergy Louisiana [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.10%)	(0.30%)	0.00%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (718)	$ (3,244)	$ 126
Entergy Louisiana [Member] | Amortization of Excess ADIT [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.00%)	0.80%	1.30%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (13,327)	$ 9,305	$ 14,032
Entergy Louisiana [Member] | Reversal of regulatory liability [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.00%	0.00%	(9.90%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 0	$ 0	$ (105,649)
Entergy Louisiana [Member] | Entergy Louisiana securitization [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.00%	0.00%	(12.50%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 0	$ 0	$ (133,443)
Entergy Louisiana [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.30%	0.30%	0.00%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 4,307	$ 3,400	$ (400)
Entergy Mississippi [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss) Attributable to Noncontrolling Interest				(3,136)	(10,551)	(10,302)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				308,728	245,407	181,969
Income Tax Expense (Benefit)				95,101	80,315	54,364
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				$ 403,829	$ 325,722	$ 236,333
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 84,804	$ 68,402	$ 49,630
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				3.90%	4.10%	4.70%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 15,876	$ 13,210	$ 11,133
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.10%	0.10%	0.20%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 359	$ 365	$ 367
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(1.40%)
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount				$ 0	$ 0	$ (3,291)
Effective Income Tax Rate Reconciliation, Percent				23.50%	24.70%	23.00%
Net Income (Loss)				$ 311,864	$ 255,958	$ 192,271
Entergy Mississippi [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.30%)	(1.10%)	(2.20%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (5,400)	$ (3,572)	$ (5,290)
Entergy Mississippi [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.50%)	(0.60%)	(0.80%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,984)	$ (1,910)	$ (1,796)
Entergy Mississippi [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.10%)	(0.10%)	(0.10%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (228)	$ (267)	$ (223)
Entergy Mississippi [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.40%	0.90%	1.50%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 1,581	$ 2,987	$ 3,534
Entergy Mississippi [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.00%	0.30%	0.10%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 93	$ 1,100	$ 300
Entergy New Orleans [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				50,411	15,847	228,938
Income Tax Expense (Benefit)				15,855	2,842	(189,973)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				$ 66,266	$ 18,689	$ 38,965
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 13,916	$ 3,925	$ 8,183
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				6.00%	6.70%	4.90%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 3,985	$ 1,248	$ 1,907
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.30%	1.10%	0.50%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount				$ 0	$ 242	$ 0
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 207	$ 211	$ 214
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(509.20%)
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount				$ 0	$ 0	$ (198,424)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent				0.00%	1.30%	0.00%
Effective Income Tax Rate Reconciliation, Percent				23.90%	15.20%	(487.50%)
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, Percent				(0.20%)	(4.40%)	(3.50%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (131)	$ (830)	$ (1,353)
Entergy New Orleans [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.60%)	(2.40%)	(0.80%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (390)	$ (445)	$ (309)
Entergy New Orleans [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.10%)	(4.50%)	(0.10%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (97)	$ (839)	$ (25)
Entergy New Orleans [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.70%)	(1.80%)	(4.90%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,138)	$ (338)	$ (1,913)
Entergy New Orleans [Member] | Amortization of Excess ADIT [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(2.00%)	(1.80%)	2.90%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,344)	$ (332)	$ 1,147
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, Percent				1.30%	0.00%	1.50%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 847	$ 0	$ 600
Entergy Texas [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss) Available to Common Stockholders, Basic				331,999	291,550	289,201
Preferred Stock Dividends, Income Statement Impact				2,072	2,072	2,072
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				334,071	293,622	291,273
Income Tax Expense (Benefit)				65,366	65,684	62,872
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				$ 399,437	$ 359,306	$ 354,145
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 83,882	$ 75,454	$ 74,370
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				0.70%	1.40%	0.70%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 2,731	$ 5,164	$ 2,574
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.10%	0.10%	0.10%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 371	$ 377	$ 381
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(0.90%)
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount					$ 0	$ (3,112)
Effective Income Tax Rate Reconciliation, Percent				16.40%	18.30%	17.80%
Entergy Texas [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.90%)	(1.30%)	(1.80%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (3,427)	$ (4,537)	$ (6,394)
Entergy Texas [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(4.30%)	(2.80%)	(1.70%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (17,172)	$ (10,045)	$ (5,920)
Entergy Texas [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.20%)	(0.20%)	(0.20%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (748)	$ (748)	$ (748)
Entergy Texas [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.00%	(0.20%)	0.40%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (149)	$ (760)	$ 1,493
Entergy Texas [Member] | Amortization of Excess ADIT [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.00%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount					$ 2	$ 17
Entergy Texas [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.00%	0.20%	0.10%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (122)	$ 777	$ 211
System Energy [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				88,095	103,500	108,772
Income Tax Expense (Benefit)				19,575	29,503	32,032
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				$ 107,670	$ 133,003	$ 140,804
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 22,611	$ 27,931	$ 29,569
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				4.50%	3.70%	4.10%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 4,893	$ 4,936	$ 5,798
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.20%	0.20%	0.10%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 198	$ 202	$ 204
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(1.10%)
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount				$ 0	$ 0	$ (1,575)
Effective Income Tax Rate Reconciliation, Percent				18.20%	22.20%	22.70%
System Energy [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(3.10%)	(1.10%)	(0.40%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (3,330)	$ (1,475)	$ (517)
System Energy [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.40%)	(1.10%)	(0.90%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,549)	$ (1,398)	$ (1,301)
System Energy [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.10%)	(0.90%)	(0.80%)
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, Percent				(1.00%)	(0.40%)	(0.10%)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,057)	$ (538)	$ (191)
System Energy [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.00%)	0.80%	0.90%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,036)	$ 1,000	$ 1,200