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Commitments And Contingencies (Tables)
 12 Months Ended
Dec. 31, 2024
Schedule of Loss Contingencies by Contingency [Table Text Block] The current maximum amounts of such possible assessments per occurrence are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.0
Entergy Louisiana$37.6
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.4
Entergy Arkansas [Member]  
Schedule of Loss Contingencies by Contingency [Table Text Block] The current maximum amounts of such possible assessments per occurrence are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.0
Entergy Louisiana$37.6
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.4
Entergy Louisiana [Member]  
Schedule of Loss Contingencies by Contingency [Table Text Block] The current maximum amounts of such possible assessments per occurrence are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.0
Entergy Louisiana$37.6
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.4
Entergy Mississippi [Member]  
Schedule of Loss Contingencies by Contingency [Table Text Block] The current maximum amounts of such possible assessments per occurrence are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.0
Entergy Louisiana$37.6
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.4
Entergy New Orleans [Member]  
Schedule of Loss Contingencies by Contingency [Table Text Block] The current maximum amounts of such possible assessments per occurrence are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.0
Entergy Louisiana$37.6
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.4
Entergy Texas [Member]  
Schedule of Loss Contingencies by Contingency [Table Text Block] The current maximum amounts of such possible assessments per occurrence are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.0
Entergy Louisiana$37.6
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.4
System Energy [Member]  
Schedule of Loss Contingencies by Contingency [Table Text Block] The current maximum amounts of such possible assessments per occurrence are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.0
Entergy Louisiana$37.6
Entergy Mississippi$0.1
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$14.4