Leases (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating Lease, Expense	$ 68,136	$ 65,463
Finance Lease, Right-of-Use Asset, Amortization	15,193	13,493
Finance Lease, Interest Expense	3,639	2,702
Short-Term Lease, Cost	$ 5,000	$ 5,400
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Public Utilities, Property, Plant and Equipment, Plant in Service	Public Utilities, Property, Plant and Equipment, Plant in Service
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Public Utilities, Property, Plant and Equipment, Plant in Service	Public Utilities, Property, Plant and Equipment, Plant in Service
Entergy Arkansas [Member]
Operating Lease, Right-of-Use Asset	$ 61,718	$ 56,000
Finance Lease, Right-of-Use Asset, after Accumulated Amortization	17,622	13,493
Operating Lease, Expense	17,065	15,435
Finance Lease, Right-of-Use Asset, Amortization	3,633	3,048
Finance Lease, Interest Expense	545	402
Short-Term Lease, Cost	1,700	1,700
Entergy Louisiana [Member]
Operating Lease, Right-of-Use Asset	54,047	46,137
Finance Lease, Right-of-Use Asset, after Accumulated Amortization	21,438	18,540
Operating Lease, Expense	16,906	15,016
Finance Lease, Right-of-Use Asset, Amortization	4,835	4,259
Finance Lease, Interest Expense	729	592
Short-Term Lease, Cost	1,600	1,800
Entergy Mississippi [Member]
Operating Lease, Right-of-Use Asset	25,470	23,624
Finance Lease, Right-of-Use Asset, after Accumulated Amortization	22,661	8,578
Operating Lease, Expense	7,837	7,510
Finance Lease, Right-of-Use Asset, Amortization	2,227	1,962
Finance Lease, Interest Expense	973	261
Short-Term Lease, Cost	1,100	900
Entergy New Orleans [Member]
Operating Lease, Right-of-Use Asset	6,119	5,906
Finance Lease, Right-of-Use Asset, after Accumulated Amortization	4,779	4,342
Operating Lease, Expense	1,912	1,755
Finance Lease, Right-of-Use Asset, Amortization	1,025	906
Finance Lease, Interest Expense	150	134
Short-Term Lease, Cost	100	200
Entergy Texas [Member]
Operating Lease, Right-of-Use Asset	21,321	17,076
Finance Lease, Right-of-Use Asset, after Accumulated Amortization	8,714	8,094
Operating Lease, Expense	7,290	5,624
Finance Lease, Right-of-Use Asset, Amortization	1,786	1,629
Finance Lease, Interest Expense	284	230
Short-Term Lease, Cost	$ 400	$ 800