Leases Lease, Maturity (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Lessee, Operating Lease, Liability, to be Paid, Year Two	$ 53,183
Finance Lease, Liability, to be Paid, Year Two	18,243
Lessee, Operating Lease, Liability, to be Paid, Year Three	44,744
Finance Lease, Liability, to be Paid, Year Three	16,392
Lessee, Operating Lease, Liability, to be Paid, Year Four	32,552
Finance Lease, Liability, to be Paid, Year Four	13,920
Lessee, Operating Lease, Liability, to be Paid, Year Five	14,038
Finance Lease, Liability, to be Paid, Year Five	11,342
Lessee, Operating Lease, Liability, to be Paid, after Year Five	14,105
Finance Lease, Liability, to be Paid, after Year Five	33,409
Lessee, Operating Lease, Liability, to be Paid	226,033
Finance Lease, Liability, to be Paid	113,243
Operating Lease, Cost	18,617
Finance Lease, Interest Payment on Liability	24,357
Present Value Net Minimum Operating Lease Payments	207,416
Present Value Net Minimum Financing Lease Payments	88,886
Lessee, Operating Lease, Liability, to be Paid, Year One	67,411
Finance Lease, Liability, to be Paid, Year One	19,937
Entergy Louisiana [Member]
Lessee, Operating Lease, Liability, to be Paid, Year Two	13,908
Finance Lease, Liability, to be Paid, Year Two	5,037
Lessee, Operating Lease, Liability, to be Paid, Year Three	11,374
Finance Lease, Liability, to be Paid, Year Three	4,279
Lessee, Operating Lease, Liability, to be Paid, Year Four	8,493
Finance Lease, Liability, to be Paid, Year Four	3,389
Lessee, Operating Lease, Liability, to be Paid, Year Five	4,595
Finance Lease, Liability, to be Paid, Year Five	2,545
Lessee, Operating Lease, Liability, to be Paid, after Year Five	4,035
Finance Lease, Liability, to be Paid, after Year Five	3,199
Lessee, Operating Lease, Liability, to be Paid	58,944
Finance Lease, Liability, to be Paid	24,141
Operating Lease, Cost	4,891
Finance Lease, Interest Payment on Liability	2,703
Present Value Net Minimum Operating Lease Payments	54,053
Present Value Net Minimum Financing Lease Payments	21,438
Lessee, Operating Lease, Liability, to be Paid, Year One	16,539
Finance Lease, Liability, to be Paid, Year One	5,692
Entergy Mississippi [Member]
Lessee, Operating Lease, Liability, to be Paid, Year Two	6,846
Finance Lease, Liability, to be Paid, Year Two	3,093
Lessee, Operating Lease, Liability, to be Paid, Year Three	5,409
Finance Lease, Liability, to be Paid, Year Three	2,775
Lessee, Operating Lease, Liability, to be Paid, Year Four	4,105
Finance Lease, Liability, to be Paid, Year Four	2,322
Lessee, Operating Lease, Liability, to be Paid, Year Five	2,212
Finance Lease, Liability, to be Paid, Year Five	1,908
Lessee, Operating Lease, Liability, to be Paid, after Year Five	2,421
Finance Lease, Liability, to be Paid, after Year Five	23,562
Lessee, Operating Lease, Liability, to be Paid	28,645
Finance Lease, Liability, to be Paid	37,048
Operating Lease, Cost	3,170
Finance Lease, Interest Payment on Liability	14,387
Present Value Net Minimum Operating Lease Payments	25,475
Present Value Net Minimum Financing Lease Payments	22,661
Lessee, Operating Lease, Liability, to be Paid, Year One	7,652
Finance Lease, Liability, to be Paid, Year One	3,388
Entergy New Orleans [Member]
Lessee, Operating Lease, Liability, to be Paid, Year Two	1,442
Finance Lease, Liability, to be Paid, Year Two	1,016
Lessee, Operating Lease, Liability, to be Paid, Year Three	1,080
Finance Lease, Liability, to be Paid, Year Three	932
Lessee, Operating Lease, Liability, to be Paid, Year Four	704
Finance Lease, Liability, to be Paid, Year Four	796
Lessee, Operating Lease, Liability, to be Paid, Year Five	476
Finance Lease, Liability, to be Paid, Year Five	603
Lessee, Operating Lease, Liability, to be Paid, after Year Five	1,376
Finance Lease, Liability, to be Paid, after Year Five	812
Lessee, Operating Lease, Liability, to be Paid	6,945
Finance Lease, Liability, to be Paid	5,307
Operating Lease, Cost	887
Finance Lease, Interest Payment on Liability	528
Present Value Net Minimum Operating Lease Payments	6,058
Present Value Net Minimum Financing Lease Payments	4,779
Lessee, Operating Lease, Liability, to be Paid, Year One	1,867
Finance Lease, Liability, to be Paid, Year One	1,148
Entergy Texas [Member]
Lessee, Operating Lease, Liability, to be Paid, Year Two	5,892
Finance Lease, Liability, to be Paid, Year Two	1,975
Lessee, Operating Lease, Liability, to be Paid, Year Three	4,736
Finance Lease, Liability, to be Paid, Year Three	1,739
Lessee, Operating Lease, Liability, to be Paid, Year Four	2,834
Finance Lease, Liability, to be Paid, Year Four	1,413
Lessee, Operating Lease, Liability, to be Paid, Year Five	1,563
Finance Lease, Liability, to be Paid, Year Five	1,145
Lessee, Operating Lease, Liability, to be Paid, after Year Five	1,672
Finance Lease, Liability, to be Paid, after Year Five	1,222
Lessee, Operating Lease, Liability, to be Paid	23,525
Finance Lease, Liability, to be Paid	9,633
Operating Lease, Cost	2,198
Finance Lease, Interest Payment on Liability	919
Present Value Net Minimum Operating Lease Payments	21,327
Present Value Net Minimum Financing Lease Payments	8,714
Lessee, Operating Lease, Liability, to be Paid, Year One	6,828
Finance Lease, Liability, to be Paid, Year One	2,139
Entergy Arkansas [Member]
Lessee, Operating Lease, Liability, to be Paid, Year Two	15,716
Finance Lease, Liability, to be Paid, Year Two	4,179
Lessee, Operating Lease, Liability, to be Paid, Year Three	13,855
Finance Lease, Liability, to be Paid, Year Three	3,747
Lessee, Operating Lease, Liability, to be Paid, Year Four	10,587
Finance Lease, Liability, to be Paid, Year Four	3,088
Lessee, Operating Lease, Liability, to be Paid, Year Five	4,597
Finance Lease, Liability, to be Paid, Year Five	2,245
Lessee, Operating Lease, Liability, to be Paid, after Year Five	4,598
Finance Lease, Liability, to be Paid, after Year Five	2,918
Lessee, Operating Lease, Liability, to be Paid	66,752
Finance Lease, Liability, to be Paid	20,777
Operating Lease, Cost	5,027
Finance Lease, Interest Payment on Liability	3,155
Present Value Net Minimum Operating Lease Payments	61,725
Present Value Net Minimum Financing Lease Payments	17,622
Lessee, Operating Lease, Liability, to be Paid, Year One	17,399
Finance Lease, Liability, to be Paid, Year One	$ 4,600