Retirement, Other Postretirement Benefits, And Defined Contribution Plans Retirement, Other Postretirement Benefits, And Defined Contribution Plans (Reclassification Out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	$ 13,586	$ 15,337
Amortization of loss	6,590	(33,859)
Settlement loss	(10,848)	(25,321)
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax	9,328	(43,843)
Non Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	(452)	(715)
Amortization of loss	(593)	(1,331)
Settlement loss	(3,004)	(1,685)
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax	(4,049)	(3,731)
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0
Amortization of loss	(4,407)	(30,147)
Settlement loss	(7,844)	(23,636)
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax	(12,251)	(53,783)
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	14,038	16,052
Amortization of loss	11,590	(2,381)
Settlement loss	0	0
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax	25,628	13,671
Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	3,804	4,630
Amortization of loss	6,263	(927)
Settlement loss	(1,617)	(2,342)
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax	8,450	1,361
Entergy Louisiana [Member] | Non Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0
Amortization of loss	(2)	(2)
Settlement loss	0	0
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax	(2)	(2)
Entergy Louisiana [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0
Amortization of loss	(792)	(1,669)
Settlement loss	(1,617)	(2,342)
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax	(2,409)	(4,011)
Entergy Louisiana [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	3,804	4,630
Amortization of loss	7,057	744
Settlement loss	0	0
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax	$ 10,861	$ 5,374