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, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	$ 20,947	$ 20,769
Amortization of loss	(88,838)	(110,185)
Settlement loss	(16,379)	(243)
Total	(84,270)	(89,659)
Non-Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	(204)	(231)
Amortization of loss	(2,194)	(3,326)
Settlement loss	(4,378)	0
Total	(6,776)	(3,557)
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0
Amortization of loss	(84,661)	(105,853)
Settlement loss	(12,001)	(243)
Total	(96,662)	(106,096)
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	21,151	21,000
Amortization of loss	(1,983)	(1,006)
Settlement loss	0	0
Total	19,168	19,994
Entergy Louisiana [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	4,920	6,179
Amortization of loss	(2,322)	(1,557)
Settlement loss	(2,484)	(243)
Total	114	4,379
Entergy Louisiana [Member] | Non-Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0
Amortization of loss	(5)	(3)
Settlement loss	(6)	0
Total	(11)	(3)
Entergy Louisiana [Member] | Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0
Amortization of loss	(2,681)	(2,001)
Settlement loss	(2,478)	(243)
Total	(5,159)	(2,244)
Entergy Louisiana [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	4,920	6,179
Amortization of loss	364	447
Settlement loss	0	0
Total	$ 5,284	$ 6,626