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Commitments And Contingencies (Tables)
 12 Months Ended
Dec. 31, 2025
Schedule of Loss Contingencies by Contingency [Table Text Block] The maximum aggregate amounts of such possible assessments for the current year’s policies are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.1
Entergy Louisiana$40.1
Entergy Mississippi$0.3
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$15.5
Entergy Arkansas [Member]  
Schedule of Loss Contingencies by Contingency [Table Text Block] The maximum aggregate amounts of such possible assessments for the current year’s policies are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.1
Entergy Louisiana$40.1
Entergy Mississippi$0.3
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$15.5
Entergy Louisiana [Member]  
Schedule of Loss Contingencies by Contingency [Table Text Block] The maximum aggregate amounts of such possible assessments for the current year’s policies are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.1
Entergy Louisiana$40.1
Entergy Mississippi$0.3
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$15.5
Entergy Mississippi [Member]  
Schedule of Loss Contingencies by Contingency [Table Text Block] The maximum aggregate amounts of such possible assessments for the current year’s policies are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.1
Entergy Louisiana$40.1
Entergy Mississippi$0.3
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$15.5
Entergy New Orleans [Member]  
Schedule of Loss Contingencies by Contingency [Table Text Block] The maximum aggregate amounts of such possible assessments for the current year’s policies are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.1
Entergy Louisiana$40.1
Entergy Mississippi$0.3
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$15.5
Entergy Texas [Member]  
Schedule of Loss Contingencies by Contingency [Table Text Block] The maximum aggregate amounts of such possible assessments for the current year’s policies are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.1
Entergy Louisiana$40.1
Entergy Mississippi$0.3
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$15.5
System Energy [Member]  
Schedule of Loss Contingencies by Contingency [Table Text Block] The maximum aggregate amounts of such possible assessments for the current year’s policies are as follows:
 Assessments
 (In Millions)
Entergy Arkansas$20.1
Entergy Louisiana$40.1
Entergy Mississippi$0.3
Entergy New Orleans$0.1
Entergy TexasN/A
System Energy$15.5