Retirement, Other Postretirement Benefits, And Defined Contribution Plans Estimated Future Benefit Payments (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, Year One	$ 24
Estimated Future Medicare Subsidy Receipts, Year Two	12
Estimated Future Medicare Subsidy Receipts, Year Three	0
Estimated Future Medicare Subsidy Receipts, Year Four	0
Estimated Future Medicare Subsidy Receipts, Year Five	0
Prescription Drug Subsidy Payments After Year Five, net of receipts	(1)
Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	494,875
Estimated Future Benefits Payments, Year Two	485,226
Estimated Future Benefits Payments, Year Three	484,201
Estimated Future Benefits Payments, Year Four	483,660
Estimated Future Benefits Payments, Year Five	478,854
Estimated Future Benefits Payments, Year Six - Year Ten	2,349,591
Non-Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	62,361
Estimated Future Benefits Payments, Year Two	13,295
Estimated Future Benefits Payments, Year Three	13,020
Estimated Future Benefits Payments, Year Four	10,151
Estimated Future Benefits Payments, Year Five	15,889
Estimated Future Benefits Payments, Year Six - Year Ten	43,609
Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	71,267
Estimated Future Benefits Payments, Year Two	69,494
Estimated Future Benefits Payments, Year Three	67,502
Estimated Future Benefits Payments, Year Four	65,585
Estimated Future Benefits Payments, Year Five	64,003
Estimated Future Benefits Payments, Year Six - Year Ten	302,752
Entergy Arkansas [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, Year One	1
Estimated Future Medicare Subsidy Receipts, Year Two	0
Estimated Future Medicare Subsidy Receipts, Year Three	0
Estimated Future Medicare Subsidy Receipts, Year Four	0
Estimated Future Medicare Subsidy Receipts, Year Five	0
Estimated Future Medicare Subsidy Receipts, Year Six - Year Ten	0
Entergy Arkansas [Member] | Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	98,261
Estimated Future Benefits Payments, Year Two	95,703
Estimated Future Benefits Payments, Year Three	94,960
Estimated Future Benefits Payments, Year Four	93,958
Estimated Future Benefits Payments, Year Five	93,116
Estimated Future Benefits Payments, Year Six - Year Ten	454,624
Entergy Arkansas [Member] | Non-Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	234
Estimated Future Benefits Payments, Year Two	357
Estimated Future Benefits Payments, Year Three	735
Estimated Future Benefits Payments, Year Four	150
Estimated Future Benefits Payments, Year Five	138
Estimated Future Benefits Payments, Year Six - Year Ten	968
Entergy Arkansas [Member] | Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	13,725
Estimated Future Benefits Payments, Year Two	13,330
Estimated Future Benefits Payments, Year Three	12,788
Estimated Future Benefits Payments, Year Four	12,398
Estimated Future Benefits Payments, Year Five	12,042
Estimated Future Benefits Payments, Year Six - Year Ten	58,491
Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, Year One	5
Estimated Future Medicare Subsidy Receipts, Year Two	5
Estimated Future Medicare Subsidy Receipts, Year Three	0
Estimated Future Medicare Subsidy Receipts, Year Four	0
Estimated Future Medicare Subsidy Receipts, Year Five	0
Estimated Future Medicare Subsidy Receipts, Year Six - Year Ten	0
Entergy Louisiana [Member] | Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	105,305
Estimated Future Benefits Payments, Year Two	103,873
Estimated Future Benefits Payments, Year Three	103,698
Estimated Future Benefits Payments, Year Four	102,623
Estimated Future Benefits Payments, Year Five	100,787
Estimated Future Benefits Payments, Year Six - Year Ten	486,551
Entergy Louisiana [Member] | Non-Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	184
Estimated Future Benefits Payments, Year Two	170
Estimated Future Benefits Payments, Year Three	156
Estimated Future Benefits Payments, Year Four	142
Estimated Future Benefits Payments, Year Five	129
Estimated Future Benefits Payments, Year Six - Year Ten	461
Entergy Louisiana [Member] | Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	15,361
Estimated Future Benefits Payments, Year Two	14,837
Estimated Future Benefits Payments, Year Three	14,519
Estimated Future Benefits Payments, Year Four	14,108
Estimated Future Benefits Payments, Year Five	13,720
Estimated Future Benefits Payments, Year Six - Year Ten	64,023
Entergy Mississippi [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, Year One	12
Estimated Future Medicare Subsidy Receipts, Year Two	1
Estimated Future Medicare Subsidy Receipts, Year Three	0
Estimated Future Medicare Subsidy Receipts, Year Four	0
Estimated Future Medicare Subsidy Receipts, Year Five	0
Prescription Drug Subsidy Payments After Year Five, net of receipts	(1)
Entergy Mississippi [Member] | Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	28,225
Estimated Future Benefits Payments, Year Two	28,264
Estimated Future Benefits Payments, Year Three	27,801
Estimated Future Benefits Payments, Year Four	27,925
Estimated Future Benefits Payments, Year Five	27,421
Estimated Future Benefits Payments, Year Six - Year Ten	128,050
Entergy Mississippi [Member] | Non-Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	214
Estimated Future Benefits Payments, Year Two	644
Estimated Future Benefits Payments, Year Three	653
Estimated Future Benefits Payments, Year Four	539
Estimated Future Benefits Payments, Year Five	878
Estimated Future Benefits Payments, Year Six - Year Ten	1,605
Entergy Mississippi [Member] | Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	3,434
Estimated Future Benefits Payments, Year Two	3,310
Estimated Future Benefits Payments, Year Three	3,326
Estimated Future Benefits Payments, Year Four	3,305
Estimated Future Benefits Payments, Year Five	3,290
Estimated Future Benefits Payments, Year Six - Year Ten	16,332
Entergy New Orleans [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, Year One	0
Estimated Future Medicare Subsidy Receipts, Year Two	1
Estimated Future Medicare Subsidy Receipts, Year Three	0
Estimated Future Medicare Subsidy Receipts, Year Four	0
Estimated Future Medicare Subsidy Receipts, Year Five	0
Prescription Drug Subsidy Payments After Year Five, net of receipts	(1)
Entergy New Orleans [Member] | Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	11,840
Estimated Future Benefits Payments, Year Two	11,755
Estimated Future Benefits Payments, Year Three	11,411
Estimated Future Benefits Payments, Year Four	11,549
Estimated Future Benefits Payments, Year Five	11,177
Estimated Future Benefits Payments, Year Six - Year Ten	52,741
Entergy New Orleans [Member] | Non-Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	32
Estimated Future Benefits Payments, Year Two	112
Estimated Future Benefits Payments, Year Three	150
Estimated Future Benefits Payments, Year Four	145
Estimated Future Benefits Payments, Year Five	233
Estimated Future Benefits Payments, Year Six - Year Ten	690
Entergy New Orleans [Member] | Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	2,353
Estimated Future Benefits Payments, Year Two	2,255
Estimated Future Benefits Payments, Year Three	2,164
Estimated Future Benefits Payments, Year Four	2,041
Estimated Future Benefits Payments, Year Five	1,933
Estimated Future Benefits Payments, Year Six - Year Ten	8,375
Entergy Texas [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, Year One	0
Estimated Future Medicare Subsidy Receipts, Year Two	0
Estimated Future Medicare Subsidy Receipts, Year Three	0
Estimated Future Medicare Subsidy Receipts, Year Four	0
Estimated Future Medicare Subsidy Receipts, Year Five	0
Estimated Future Medicare Subsidy Receipts, Year Six - Year Ten	1
Entergy Texas [Member] | Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	25,729
Estimated Future Benefits Payments, Year Two	24,583
Estimated Future Benefits Payments, Year Three	23,773
Estimated Future Benefits Payments, Year Four	24,074
Estimated Future Benefits Payments, Year Five	22,393
Estimated Future Benefits Payments, Year Six - Year Ten	102,864
Entergy Texas [Member] | Non-Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	448
Estimated Future Benefits Payments, Year Two	426
Estimated Future Benefits Payments, Year Three	403
Estimated Future Benefits Payments, Year Four	430
Estimated Future Benefits Payments, Year Five	380
Estimated Future Benefits Payments, Year Six - Year Ten	1,566
Entergy Texas [Member] | Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	4,931
Estimated Future Benefits Payments, Year Two	4,723
Estimated Future Benefits Payments, Year Three	4,581
Estimated Future Benefits Payments, Year Four	4,340
Estimated Future Benefits Payments, Year Five	4,232
Estimated Future Benefits Payments, Year Six - Year Ten	19,315
System Energy [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Medicare Subsidy Receipts, Year One	1
Estimated Future Medicare Subsidy Receipts, Year Two	0
Estimated Future Medicare Subsidy Receipts, Year Three	0
Estimated Future Medicare Subsidy Receipts, Year Four	0
Estimated Future Medicare Subsidy Receipts, Year Five	0
Estimated Future Medicare Subsidy Receipts, Year Six - Year Ten	1
System Energy [Member] | Qualified Pension Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	24,074
Estimated Future Benefits Payments, Year Two	23,426
Estimated Future Benefits Payments, Year Three	22,788
Estimated Future Benefits Payments, Year Four	22,501
Estimated Future Benefits Payments, Year Five	23,352
Estimated Future Benefits Payments, Year Six - Year Ten	112,550
System Energy [Member] | Other Postretirement Benefit Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Future Benefits Payments, Year One	2,814
Estimated Future Benefits Payments, Year Two	2,693
Estimated Future Benefits Payments, Year Three	2,605
Estimated Future Benefits Payments, Year Four	2,439
Estimated Future Benefits Payments, Year Five	2,366
Estimated Future Benefits Payments, Year Six - Year Ten	$ 11,998