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Leases (Lease, Terms and Discount Rate) (Details)
Dec. 31, 2025
Dec. 31, 2024
Operating Lease, Weighted Average Remaining Lease Term 5 years 6 months 7 days 5 years 6 months 14 days
Finance Lease, Weighted Average Remaining Lease Term 9 years 5 months 8 days 9 years 9 months 21 days
Operating Lease, Weighted Average Discount Rate, Percent 4.38% 4.34%
Finance Lease, Weighted Average Discount Rate, Percent 4.84% 4.75%
Entergy Louisiana [Member]    
Operating Lease, Weighted Average Remaining Lease Term 4 years 4 months 28 days 4 years 7 months 20 days
Finance Lease, Weighted Average Remaining Lease Term 5 years 8 months 23 days 5 years 7 months 6 days
Operating Lease, Weighted Average Discount Rate, Percent 4.52% 4.38%
Finance Lease, Weighted Average Discount Rate, Percent 4.54% 4.28%
Entergy Mississippi [Member]    
Operating Lease, Weighted Average Remaining Lease Term 5 years 5 years 3 months
Finance Lease, Weighted Average Remaining Lease Term 16 years 6 months 14 days 17 years 6 months 29 days
Operating Lease, Weighted Average Discount Rate, Percent 4.56% 4.52%
Finance Lease, Weighted Average Discount Rate, Percent 5.23% 5.18%
Entergy New Orleans [Member]    
Operating Lease, Weighted Average Remaining Lease Term 5 years 8 months 12 days 6 years 29 days
Finance Lease, Weighted Average Remaining Lease Term 5 years 7 months 6 days 5 years 10 months 28 days
Operating Lease, Weighted Average Discount Rate, Percent 4.50% 4.40%
Finance Lease, Weighted Average Discount Rate, Percent 4.36% 4.19%
Entergy Texas [Member]    
Operating Lease, Weighted Average Remaining Lease Term 4 years 3 months 14 days 4 years 7 months 2 days
Finance Lease, Weighted Average Remaining Lease Term 5 years 7 months 24 days 5 years 8 months 26 days
Operating Lease, Weighted Average Discount Rate, Percent 4.62% 4.55%
Finance Lease, Weighted Average Discount Rate, Percent 4.43% 4.19%
Entergy Arkansas [Member]    
Operating Lease, Weighted Average Remaining Lease Term 5 years 1 month 20 days 4 years 4 months 20 days
Finance Lease, Weighted Average Remaining Lease Term 10 years 6 months 29 days 11 years 3 months 25 days
Operating Lease, Weighted Average Discount Rate, Percent 4.35% 4.38%
Finance Lease, Weighted Average Discount Rate, Percent 4.49% 4.38%