Summary Of Significant Accounting Policies (Schedule of Public Utility Property, Plant, And Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	$ 10,414,000	$ 9,927,000
Public Utilities, Property, Plant and Equipment, Distribution	14,321,000	12,927,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	3,286,000	3,173,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	3,206,308	2,109,703
Public Utilities, Property, Plant and Equipment, Fuel	765,661	707,852
Public Utilities, Property, Plant and Equipment, Net	47,422,950	43,834,329
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	2,267,000	2,102,000
Public Utilities, Property, Plant and Equipment, Distribution	3,615,000	3,395,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	606,000	571,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	320,447	340,601
Public Utilities, Property, Plant and Equipment, Fuel	257,533	213,722
Public Utilities, Property, Plant and Equipment, Net	10,674,012	9,373,934
Entergy Louisiana [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	4,339,000	4,283,000
Public Utilities, Property, Plant and Equipment, Distribution	4,973,000	4,371,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	1,175,000	1,156,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	761,090	592,803
Public Utilities, Property, Plant and Equipment, Fuel	288,084	333,472
Public Utilities, Property, Plant and Equipment, Net	19,024,679	18,471,693
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	1,567,000	1,483,000
Public Utilities, Property, Plant and Equipment, Distribution	2,418,000	2,272,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	385,000	395,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	487,273	139,635
Public Utilities, Property, Plant and Equipment, Fuel	0	0
Public Utilities, Property, Plant and Equipment, Net	5,836,591	5,248,453
Entergy New Orleans [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	155,000	143,000
Public Utilities, Property, Plant and Equipment, Distribution	761,000	692,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	384,000	370,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	18,269	25,424
Public Utilities, Property, Plant and Equipment, Fuel	0	0
Public Utilities, Property, Plant and Equipment, Net	1,453,408	1,615,526
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	2,054,000	1,882,000
Public Utilities, Property, Plant and Equipment, Distribution	2,554,000	2,197,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	318,000	311,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	1,513,170	857,707
Public Utilities, Property, Plant and Equipment, Fuel	0	0
Public Utilities, Property, Plant and Equipment, Net	7,592,834	6,425,128
System Energy [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	30,000	32,000
Public Utilities, Property, Plant and Equipment, Distribution	0	0
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	44,000	38,000
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	85,127	130,866
Public Utilities, Property, Plant and Equipment, Fuel	220,044	160,655
Public Utilities, Property, Plant and Equipment, Net	2,394,715	2,293,950
Nuclear Plant [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	8,024,000	7,944,000
Nuclear Plant [Member] | Entergy Arkansas [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	1,887,000	1,859,000
Nuclear Plant [Member] | Entergy Louisiana [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	4,121,000	4,153,000
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	2,016,000	1,932,000
Electricity Generation Plant, Non-Nuclear [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	7,809,000	7,045,000
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	1,721,000	892,000
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	3,532,000	3,583,000
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	980,000	958,000
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	374,000	386,000
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	1,154,000	1,177,000
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