Retirement, Other Postretirement Benefits, And Defined Contribution Plans (Schedule of Expected Benefit Payments) (Details) $ in Thousands	Dec. 31, 2024 USD ($)
Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	$ 396,881
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	373,969
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	374,332
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	374,818
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	372,728
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	1,852,026
Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	22,324
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	7,975
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	14,666
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	8,905
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	7,532
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	36,035
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	68,754
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	65,668
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	63,067
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	60,746
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	58,225
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	279,644
Entergy Arkansas [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	92,997
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	91,164
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	91,175
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	89,535
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	88,244
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	437,940
Entergy Arkansas [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	524
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	103
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	94
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	175
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	143
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	634
Entergy Arkansas [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	12,198
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	11,754
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	11,280
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	11,012
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	10,896
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	53,047
Entergy Louisiana [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	99,646
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	94,614
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	93,456
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	95,546
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	93,857
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	458,211
Entergy Louisiana [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	190
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	173
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	159
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	146
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	141
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	552
Entergy Louisiana [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	14,377
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	13,757
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	13,172
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	12,531
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	12,089
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	57,646
Entergy Mississippi [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	26,600
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	25,540
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	25,272
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	24,923
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	25,038
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	118,197
Entergy Mississippi [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	419
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	309
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	764
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	578
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	436
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	1,582
Entergy Mississippi [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	3,329
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	3,218
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	3,109
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	3,110
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	3,014
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	14,486
Entergy New Orleans [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	10,879
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	11,107
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	10,658
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	10,775
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	10,242
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	50,337
Entergy New Orleans [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	104
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	84
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	263
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	210
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	167
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	609
Entergy New Orleans [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	2,082
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	1,941
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	1,789
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	1,655
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	1,575
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	7,164
Entergy Texas [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	22,865
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	22,419
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	21,251
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	20,135
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	20,474
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	93,989
Entergy Texas [Member] | Pension Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	386
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	360
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	335
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	310
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	284
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	1,081
Entergy Texas [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	4,542
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	4,168
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	3,989
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	3,787
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	3,627
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	17,113
System Energy [Member] | Pension Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	24,910
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	22,420
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	23,235
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	22,540
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	22,790
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	112,086
System Energy [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	2,645
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	2,434
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	2,339
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	2,288
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	2,278
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	$ 11,340