Summary Of Significant Accounting Policies (Schedule Of Jointly Owned Utility Plants) (Details) $ in Millions	Dec. 31, 2024 USD ($) MW
Independence Unit 1 [Member] | Entergy Arkansas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	31.50%
Jointly Owned Utility Plant, Net Ownership Amount	$ 152
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 109
Jointly Owned Utility Plant, Capability | MW	820
Independence Common Facilities [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	7.18%
Jointly Owned Utility Plant, Net Ownership Amount	$ 20
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 16
Independence Common Facilities [Member] | Entergy Arkansas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	15.75%
Jointly Owned Utility Plant, Net Ownership Amount	$ 42
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 32
White Bluff Units 1 And 2 [Member] | Entergy Arkansas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	57.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 622
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 412
Jointly Owned Utility Plant, Capability | MW	1,244
Ouachita Common Facilities [Member] | Entergy Arkansas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	66.67%
Jointly Owned Utility Plant, Net Ownership Amount	$ 174
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 160
Ouachita Common Facilities [Member] | Entergy Louisiana [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	33.33%
Jointly Owned Utility Plant, Net Ownership Amount	$ 91
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 79
Roy S. Nelson Unit 6 [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	10.90%
Jointly Owned Utility Plant, Net Ownership Amount	$ 121
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 76
Jointly Owned Utility Plant, Capability | MW	514
Roy S. Nelson Unit 6 [Member] | Entergy Louisiana [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	40.25%
Jointly Owned Utility Plant, Net Ownership Amount	$ 301
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 231
Jointly Owned Utility Plant, Capability | MW	514
Roy S. Nelson Unit 6 [Member] | Entergy Texas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	29.75%
Jointly Owned Utility Plant, Net Ownership Amount	$ 212
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 160
Jointly Owned Utility Plant, Capability | MW	514
Roy S. Nelson Unit 6 Common Facilities [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	10.90%
Jointly Owned Utility Plant, Net Ownership Amount	$ 3
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 2
Roy S. Nelson Unit 6 Common Facilities [Member] | Entergy Louisiana [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	40.25%
Jointly Owned Utility Plant, Net Ownership Amount	$ 22
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 11
Roy S. Nelson Unit 6 Common Facilities [Member] | Entergy Texas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	29.75%
Jointly Owned Utility Plant, Net Ownership Amount	$ 8
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 4
Big Cajun 2 Unit 3 [Member] | Entergy Louisiana [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	24.15%
Jointly Owned Utility Plant, Net Ownership Amount	$ 149
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 140
Jointly Owned Utility Plant, Capability | MW	551
Big Cajun 2 Unit 3 [Member] | Entergy Texas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	17.85%
Jointly Owned Utility Plant, Net Ownership Amount	$ 112
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 115
Jointly Owned Utility Plant, Capability | MW	551
Big Cajun 2 Unit 3 Common Facilities [Member] | Entergy Louisiana [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	8.05%
Jointly Owned Utility Plant, Net Ownership Amount	$ 5
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 3
Big Cajun 2 Unit 3 Common Facilities [Member] | Entergy Texas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	5.95%
Jointly Owned Utility Plant, Net Ownership Amount	$ 4
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 2
Acadia Common Facilities [Member] | Entergy Louisiana [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	50.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 22
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 3
Independence Units 1 and 2 and Common Facilities [Member] | Entergy Mississippi [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	25.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 304
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 195
Jointly Owned Utility Plant, Capability | MW	1,662
Grand Gulf Unit 1 [Member] | System Energy [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	90.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 5,674
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 3,580
Jointly Owned Utility Plant, Capability | MW	1,390
Independence Unit 2 [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	14.37%
Jointly Owned Utility Plant, Net Ownership Amount	$ 81
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 61
Jointly Owned Utility Plant, Capability | MW	842
Ouachita Units One And Two [Member] | Entergy Arkansas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	100.00%
Ouachita Unit 3 [Member] | Entergy Louisiana [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	100.00%
Union Common Facilities [Member] | Entergy Arkansas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	25.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 29
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 13
Union Common Facilities [Member] | Entergy Louisiana [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	50.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 58
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 15
Union Common Facilities [Member] | Entergy New Orleans [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	25.00%
Jointly Owned Utility Plant, Net Ownership Amount	$ 30
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 11
Union Unit 1 [Member] | Entergy New Orleans [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	100.00%
Union Unit 2 [Member] | Entergy Arkansas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	100.00%
Union Units 3 and 4 [Member] | Entergy Louisiana [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	100.00%
Montgomery County Unit 1 [Member] | Entergy Texas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	92.44%
Jointly Owned Utility Plant, Net Ownership Amount	$ 759
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 40
Jointly Owned Utility Plant, Capability | MW	915