Summary Of Significant Accounting Policies (Schedule of Public Utility Property, Plant, And Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	$ 11,116,000	$ 10,414,000
Public Utilities, Property, Plant and Equipment, Distribution	16,374,000	14,321,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	2,198,000	3,286,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	6,020,008	3,206,308
Public Utilities, Property, Plant and Equipment, Fuel	834,690	765,661
Public Utilities, Property, Plant and Equipment, Net	52,854,614	47,422,950
Public Utilities, Property, Plant and Equipment, Construction Work in Progress and Noncurrent Assets Held For Sale [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Construction Work in Progress		3,209,000
Public Utilities, Property, Plant and Equipment, Net and Noncurrent Assets Held for Sale [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Net		47,829,000
Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | Entergy New Orleans and Entergy Louisiana natural gas distribution businesses [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment- Natural Gas, Accumulated Depreciation		403,000
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Construction Work In Progress		2,959
Entergy Arkansas [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	2,195,000	2,267,000
Public Utilities, Property, Plant and Equipment, Distribution	4,056,000	3,615,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	418,000	606,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	621,218	320,447
Public Utilities, Property, Plant and Equipment, Fuel	302,706	257,533
Public Utilities, Property, Plant and Equipment, Net	11,360,707	10,674,012
Entergy Louisiana [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	4,578,000	4,339,000
Public Utilities, Property, Plant and Equipment, Distribution	5,843,000	4,973,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	722,000	1,175,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	2,031,650	761,090
Public Utilities, Property, Plant and Equipment, Fuel	323,052	288,084
Public Utilities, Property, Plant and Equipment, Net	21,487,073	19,024,679
Entergy Louisiana [Member] | Public Utilities, Property, Plant and Equipment, Construction Work in Progress and Noncurrent Assets Held For Sale [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Construction Work in Progress		762,000
Entergy Louisiana [Member] | Public Utilities, Property, Plant and Equipment, Net and Noncurrent Assets Held for Sale [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Net		19,190,000
Entergy Louisiana [Member] | Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | Entergy Louisiana natural gas distribution business [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment- Natural Gas, Accumulated Depreciation		164,000
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Construction Work In Progress		1,085
Entergy Mississippi [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	1,748,000	1,567,000
Public Utilities, Property, Plant and Equipment, Distribution	2,696,000	2,418,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	293,000	385,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	1,396,075	487,273
Public Utilities, Property, Plant and Equipment, Fuel	0	0
Public Utilities, Property, Plant and Equipment, Net	7,126,331	5,836,591
Entergy New Orleans [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	168,000	155,000
Public Utilities, Property, Plant and Equipment, Distribution	835,000	761,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	108,000	384,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	43,055	18,269
Public Utilities, Property, Plant and Equipment, Fuel	0	0
Public Utilities, Property, Plant and Equipment, Net	1,532,345	1,453,408
Entergy New Orleans [Member] | Public Utilities, Property, Plant and Equipment, Construction Work in Progress and Noncurrent Assets Held For Sale [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Construction Work in Progress		20,000
Entergy New Orleans [Member] | Public Utilities, Property, Plant and Equipment, Net and Noncurrent Assets Held for Sale [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Net		1,694,000
Entergy New Orleans [Member] | Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | Entergy New Orleans natural gas distribution business [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment- Natural Gas, Accumulated Depreciation		239,000
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Construction Work In Progress		1,874
Entergy Texas [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	2,397,000	2,054,000
Public Utilities, Property, Plant and Equipment, Distribution	2,944,000	2,554,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	288,000	318,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	1,761,028	1,513,170
Public Utilities, Property, Plant and Equipment, Fuel	0	0
Public Utilities, Property, Plant and Equipment, Net	8,487,879	7,592,834
System Energy [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	28,000	30,000
Public Utilities, Property, Plant and Equipment, Distribution	0	0
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	5,000	44,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	123,172	85,127
Public Utilities, Property, Plant and Equipment, Fuel	208,932	220,044
Public Utilities, Property, Plant and Equipment, Net	2,406,181	2,394,715
Nuclear Plant [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	8,591,000	8,024,000
Nuclear Plant [Member] | Entergy Arkansas [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	2,077,000	1,887,000
Nuclear Plant [Member] | Entergy Louisiana [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	4,473,000	4,121,000
Nuclear Plant [Member] | Entergy Mississippi [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	0	0
Nuclear Plant [Member] | Entergy New Orleans [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	0	0
Nuclear Plant [Member] | Entergy Texas [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	0	0
Nuclear Plant [Member] | System Energy [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	2,041,000	2,016,000
Electricity Generation Plant, Non-Nuclear [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	7,721,000	7,809,000
Electricity Generation Plant, Non-Nuclear [Member] | Entergy Arkansas [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	1,691,000	1,721,000
Electricity Generation Plant, Non-Nuclear [Member] | Entergy Louisiana [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	3,516,000	3,532,000
Electricity Generation Plant, Non-Nuclear [Member] | Entergy Mississippi [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	993,000	980,000
Electricity Generation Plant, Non-Nuclear [Member] | Entergy New Orleans [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	378,000	374,000
Electricity Generation Plant, Non-Nuclear [Member] | Entergy Texas [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	1,098,000	1,154,000
Electricity Generation Plant, Non-Nuclear [Member] | System Energy [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	$ 0	$ 0