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Commitments And Contingencies (Tables)
 12 Months Ended
Dec. 31, 2022
Maximum Amounts Of Possible Assessments Per Occurrence Effective January 1, 2023, the maximum amounts of such possible assessments per occurrence were as follows:
 Assessments
 (In Millions)
Utility: 
Entergy Arkansas$19.2
Entergy Louisiana$36.1
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.6
Entergy Arkansas [Member]  
Maximum Amounts Of Possible Assessments Per Occurrence Effective January 1, 2023, the maximum amounts of such possible assessments per occurrence were as follows:
 Assessments
 (In Millions)
Utility: 
Entergy Arkansas$19.2
Entergy Louisiana$36.1
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.6
Entergy Louisiana [Member]  
Maximum Amounts Of Possible Assessments Per Occurrence Effective January 1, 2023, the maximum amounts of such possible assessments per occurrence were as follows:
 Assessments
 (In Millions)
Utility: 
Entergy Arkansas$19.2
Entergy Louisiana$36.1
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.6
Entergy Mississippi [Member]  
Maximum Amounts Of Possible Assessments Per Occurrence Effective January 1, 2023, the maximum amounts of such possible assessments per occurrence were as follows:
 Assessments
 (In Millions)
Utility: 
Entergy Arkansas$19.2
Entergy Louisiana$36.1
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.6
Entergy New Orleans [Member]  
Maximum Amounts Of Possible Assessments Per Occurrence Effective January 1, 2023, the maximum amounts of such possible assessments per occurrence were as follows:
 Assessments
 (In Millions)
Utility: 
Entergy Arkansas$19.2
Entergy Louisiana$36.1
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.6
Entergy Texas [Member]  
Maximum Amounts Of Possible Assessments Per Occurrence Effective January 1, 2023, the maximum amounts of such possible assessments per occurrence were as follows:
 Assessments
 (In Millions)
Utility: 
Entergy Arkansas$19.2
Entergy Louisiana$36.1
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.6
System Energy [Member]  
Maximum Amounts Of Possible Assessments Per Occurrence Effective January 1, 2023, the maximum amounts of such possible assessments per occurrence were as follows:
 Assessments
 (In Millions)
Utility: 
Entergy Arkansas$19.2
Entergy Louisiana$36.1
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.6