Leases (Lease, Terms and Discount Rate) (Details)	Dec. 31, 2024	Dec. 31, 2023
Operating Lease, Weighted Average Remaining Lease Term	5 years 6 months 14 days	4 years 5 months 15 days
Finance Lease, Weighted Average Remaining Lease Term	9 years 9 months 21 days	8 years 7 months 9 days
Operating Lease, Weighted Average Discount Rate, Percent	4.34%	4.10%
Finance Lease, Weighted Average Discount Rate, Percent	4.75%	4.64%
Entergy Louisiana [Member]
Operating Lease, Weighted Average Remaining Lease Term	4 years 7 months 20 days	4 years 7 months 6 days
Finance Lease, Weighted Average Remaining Lease Term	5 years 7 months 6 days	5 years 4 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent	4.38%	4.01%
Finance Lease, Weighted Average Discount Rate, Percent	4.28%	3.85%
Entergy Mississippi [Member]
Operating Lease, Weighted Average Remaining Lease Term	5 years 3 months	5 years 4 months 2 days
Finance Lease, Weighted Average Remaining Lease Term	17 years 6 months 29 days	17 years 9 months 25 days
Operating Lease, Weighted Average Discount Rate, Percent	4.52%	4.08%
Finance Lease, Weighted Average Discount Rate, Percent	5.18%	5.08%
Entergy New Orleans [Member]
Operating Lease, Weighted Average Remaining Lease Term	6 years 29 days	6 years 4 months 17 days
Finance Lease, Weighted Average Remaining Lease Term	5 years 10 months 28 days	5 years 8 months 23 days
Operating Lease, Weighted Average Discount Rate, Percent	4.40%	4.02%
Finance Lease, Weighted Average Discount Rate, Percent	4.19%	3.69%
Entergy Texas [Member]
Operating Lease, Weighted Average Remaining Lease Term	4 years 7 months 2 days	4 years 5 months 8 days
Finance Lease, Weighted Average Remaining Lease Term	5 years 8 months 26 days	5 years 5 months 26 days
Operating Lease, Weighted Average Discount Rate, Percent	4.55%	4.43%
Finance Lease, Weighted Average Discount Rate, Percent	4.19%	3.76%
Entergy Arkansas [Member]
Operating Lease, Weighted Average Remaining Lease Term	4 years 4 months 20 days	4 years 7 months 13 days
Finance Lease, Weighted Average Remaining Lease Term	11 years 3 months 25 days	5 years 6 months 25 days
Operating Lease, Weighted Average Discount Rate, Percent	4.38%	4.04%
Finance Lease, Weighted Average Discount Rate, Percent	4.38%	3.77%