Summary Of Significant Accounting Policies (Schedule Of Jointly Owned Utility Plants) (Details) $ in Thousands	Dec. 31, 2025 USD ($) MW	Dec. 31, 2024 USD ($)
Jointly Owned Utility Plant Interests [Line Items]
Regulatory Liability, Noncurrent	$ 3,911,839	$ 3,609,463
Refund from System Energy settlement with the APSC [Member]
Jointly Owned Utility Plant Interests [Line Items]
Regulatory Liability, Noncurrent	0	8,200
Entergy Arkansas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Regulatory Liability, Noncurrent	1,044,060	831,165
Entergy Arkansas [Member] | Refund from System Energy settlement with the APSC [Member]
Jointly Owned Utility Plant Interests [Line Items]
Regulatory Liability, Noncurrent	0	8,200
Entergy Louisiana [Member]
Jointly Owned Utility Plant Interests [Line Items]
Regulatory Liability, Noncurrent	1,630,763	1,692,547
Entergy Mississippi [Member]
Jointly Owned Utility Plant Interests [Line Items]
Regulatory Liability, Noncurrent	144,124	59,544
Entergy Texas [Member]
Jointly Owned Utility Plant Interests [Line Items]
Regulatory Liability, Noncurrent	138,969	18,705
System Energy [Member]
Jointly Owned Utility Plant Interests [Line Items]
Regulatory Liability, Noncurrent	897,301	747,190
Entergy New Orleans [Member]
Jointly Owned Utility Plant Interests [Line Items]
Regulatory Liability, Noncurrent	$ 312,962	$ 260,312
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	$ 153,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 110,000
Jointly Owned Utility Plant, Capability | MW	824
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	$ 21,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 17,000
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	$ 43,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 33,000
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	$ 624,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 424,000
Jointly Owned Utility Plant, Capability | MW	1,253
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	$ 174,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 162,000
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	$ 91,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 80,000
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	$ 121,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 79,000
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	$ 302,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 237,000
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	$ 213,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 178,000
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	$ 3,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 2,000
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	$ 22,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 11,000
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	$ 8,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 5,000
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	$ 146,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 142,000
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	$ 109,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 129,000
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	$ 5,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 3,000
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	$ 4,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 3,000
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	$ 22,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 4,000
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	$ 307,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 204,000
Jointly Owned Utility Plant, Capability | MW	1,666
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	$ 5,763,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 3,681,000
Jointly Owned Utility Plant, Capability | MW	1,397
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	$ 82,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 63,000
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	$ 29,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 15,000
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	$ 58,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 17,000
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	$ 30,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 12,000
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	$ 761,000
Jointly Owned Utility Plant, Ownership Amount of Plant Accumulated Depreciation	$ 54,000
Jointly Owned Utility Plant, Capability | MW	940