Summary Of Significant Accounting Policies (Schedule Of Net Property, Plant, And Equipment) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) MW	Dec. 31, 2022 USD ($)
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	$ 9,927,000	$ 9,590,000
Public Utilities, Property, Plant and Equipment, Distribution	12,927,000	12,363,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	66,850,474	64,646,911
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	2,109,703	1,844,171
Public Utilities, Property, Plant And Equipment, Nuclear Fuel	708,000	582,000
Public Utilities, Property, Plant and Equipment, Net	43,834,329	42,477,124
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 193,000	208,000
Independence Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Proportionate Ownership Share	7.18%
Jointly Owned Utility Plant, Net Ownership Amount	$ 21,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 15,000
Roy S Nelson Unit Six [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Capability | MW	514
Jointly Owned Utility Plant, Proportionate Ownership Share	10.90%
Jointly Owned Utility Plant, Net Ownership Amount	$ 120,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 74,000
Roy S Nelson Unit Six Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Proportionate Ownership Share	5.97%
Jointly Owned Utility Plant, Net Ownership Amount	$ 3,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 1,000
Independence Unit Two [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Capability | MW	842
Jointly Owned Utility Plant, Proportionate Ownership Share	14.37%
Jointly Owned Utility Plant, Net Ownership Amount	$ 79,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	59,000
Entergy Arkansas [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	2,102,000	2,086,000
Public Utilities, Property, Plant and Equipment, Distribution	3,395,000	2,981,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	14,821,814	14,077,844
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	340,601	417,244
Public Utilities, Property, Plant And Equipment, Nuclear Fuel	214,000	176,000
Public Utilities, Property, Plant and Equipment, Net	9,373,934	8,941,958
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 100	100
Entergy Arkansas [Member] | Independence Unit One [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Capability | MW	824
Jointly Owned Utility Plant, Proportionate Ownership Share	31.50%
Jointly Owned Utility Plant, Net Ownership Amount	$ 145,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 108,000
Entergy Arkansas [Member] | Independence Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Proportionate Ownership Share	15.75%
Jointly Owned Utility Plant, Net Ownership Amount	$ 42,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 31,000
Entergy Arkansas [Member] | White Bluff Units One And Two [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Capability | MW	1,244
Jointly Owned Utility Plant, Proportionate Ownership Share	57.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 593,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 404,000
Entergy Arkansas [Member] | Ouachita Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Gas
Jointly Owned Utility Plant, Proportionate Ownership Share	66.67%
Jointly Owned Utility Plant, Net Ownership Amount	$ 173,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 159,000
Entergy Arkansas [Member] | Union Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Gas
Jointly Owned Utility Plant, Proportionate Ownership Share	25.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 29,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	12,000
Entergy Louisiana [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	4,283,000	4,055,000
Public Utilities, Property, Plant and Equipment, Distribution	4,371,000	4,827,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	27,800,467	27,498,136
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	592,803	736,969
Public Utilities, Property, Plant And Equipment, Nuclear Fuel	333,000	213,000
Public Utilities, Property, Plant and Equipment, Net	18,471,693	18,661,823
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 187,200	202,200
Entergy Louisiana [Member] | Ouachita Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Gas
Jointly Owned Utility Plant, Proportionate Ownership Share	33.33%
Jointly Owned Utility Plant, Net Ownership Amount	$ 91,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 79,000
Entergy Louisiana [Member] | Union Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Gas
Jointly Owned Utility Plant, Proportionate Ownership Share	50.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 59,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 14,000
Entergy Louisiana [Member] | Roy S Nelson Unit Six [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Capability | MW	514
Jointly Owned Utility Plant, Proportionate Ownership Share	40.25%
Jointly Owned Utility Plant, Net Ownership Amount	$ 299,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 224,000
Entergy Louisiana [Member] | Roy S Nelson Unit Six Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Proportionate Ownership Share	22.04%
Jointly Owned Utility Plant, Net Ownership Amount	$ 22,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 11,000
Entergy Louisiana [Member] | Big Cajun Two Unit Three [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Capability | MW	548
Jointly Owned Utility Plant, Proportionate Ownership Share	24.15%
Jointly Owned Utility Plant, Net Ownership Amount	$ 149,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 136,000
Entergy Louisiana [Member] | Big Cajun 2 Unit 3 Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Proportionate Ownership Share	8.05%
Jointly Owned Utility Plant, Net Ownership Amount	$ 5,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 3,000
Entergy Louisiana [Member] | Acadia Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Gas
Jointly Owned Utility Plant, Proportionate Ownership Share	50.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 22,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	3,000
Entergy Mississippi [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	1,483,000	1,435,000
Public Utilities, Property, Plant and Equipment, Distribution	2,272,000	2,035,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	7,455,145	7,079,849
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	139,635	170,191
Public Utilities, Property, Plant And Equipment, Nuclear Fuel	0	0
Public Utilities, Property, Plant and Equipment, Net	5,248,453	4,985,254
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 500	500
Entergy Mississippi [Member] | Independence Units One And Two And Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Capability | MW	1,666
Jointly Owned Utility Plant, Proportionate Ownership Share	25.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 293,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	182,000
Entergy New Orleans [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	143,000	131,000
Public Utilities, Property, Plant and Equipment, Distribution	692,000	625,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	2,046,928	1,934,837
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	25,424	39,607
Public Utilities, Property, Plant And Equipment, Nuclear Fuel	0	0
Public Utilities, Property, Plant and Equipment, Net	$ 1,615,526	1,556,472
Entergy New Orleans [Member] | Union Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Gas
Jointly Owned Utility Plant, Proportionate Ownership Share	25.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 30,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	10,000
Entergy Texas [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	1,882,000	1,846,000
Public Utilities, Property, Plant and Equipment, Distribution	2,197,000	1,895,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	7,931,340	7,409,461
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	857,707	339,139
Public Utilities, Property, Plant And Equipment, Nuclear Fuel	0	0
Public Utilities, Property, Plant and Equipment, Net	$ 6,425,128	5,613,200
Entergy Texas [Member] | Roy S Nelson Unit Six [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Capability | MW	514
Jointly Owned Utility Plant, Proportionate Ownership Share	29.75%
Jointly Owned Utility Plant, Net Ownership Amount	$ 211,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 141,000
Entergy Texas [Member] | Roy S Nelson Unit Six Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Proportionate Ownership Share	16.30%
Jointly Owned Utility Plant, Net Ownership Amount	$ 8,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 4,000
Entergy Texas [Member] | Big Cajun Two Unit Three [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Capability | MW	548
Jointly Owned Utility Plant, Proportionate Ownership Share	17.85%
Jointly Owned Utility Plant, Net Ownership Amount	$ 112,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 101,000
Entergy Texas [Member] | Big Cajun 2 Unit 3 Common Facilities [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Coal
Jointly Owned Utility Plant, Proportionate Ownership Share	5.95%
Jointly Owned Utility Plant, Net Ownership Amount	$ 4,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 2,000
Entergy Texas [Member] | Montgomery County Power Station [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Gas
Jointly Owned Utility Plant, Capability | MW	915
Jointly Owned Utility Plant, Proportionate Ownership Share	92.44%
Jointly Owned Utility Plant, Net Ownership Amount	$ 745,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	54,000
System Energy [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Transmission	32,000	34,000
Public Utilities, Property, Plant and Equipment, Distribution	0	0
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	5,495,728	5,425,449
Public Utilities, Property, Plant and Equipment, Construction Work in Progress	130,866	102,987
Public Utilities, Property, Plant And Equipment, Nuclear Fuel	161,000	193,000
Public Utilities, Property, Plant and Equipment, Net	$ 2,293,950	2,309,183
System Energy [Member] | Grand Gulf Unit One [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Jointly Owned Utility Plant, Fuel Type	Nuclear
Jointly Owned Utility Plant, Capability | MW	1,383
Jointly Owned Utility Plant, Proportionate Ownership Share	90.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 5,499,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	3,494,000
Nuclear Plant [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	7,944,000	7,936,000
Nuclear Plant [Member] | Entergy Arkansas [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	1,859,000	1,858,000
Nuclear Plant [Member] | Entergy Louisiana [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	4,153,000	4,116,000
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	1,932,000	1,962,000
Other Plant In Service [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	7,045,000	7,256,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	3,173,000	2,906,000
Other Plant In Service [Member] | Entergy Arkansas [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	892,000	916,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	571,000	508,000
Other Plant In Service [Member] | Entergy Louisiana [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	3,583,000	3,652,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	1,156,000	1,062,000
Other Plant In Service [Member] | Entergy Mississippi [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	958,000	988,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	395,000	357,000
Other Plant In Service [Member] | Entergy New Orleans [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	386,000	403,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	370,000	357,000
Other Plant In Service [Member] | Entergy Texas [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	1,177,000	1,244,000
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	311,000	289,000
Other Plant In Service [Member] | System Energy [Member]
Public Utility, Property, Plant and Equipment [Line Items]
Public Utilities, Property, Plant and Equipment, Generation or Processing	0	0
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment	$ 38,000	$ 17,000