Retirement, Other Postretirement Benefits, And Defined Contribution Plans Schedule Of Accumulated Benefit Obligations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Qualified Pension Plans [Member]
Accumulated pension benefit obligation	$ 5,700,000	$ 7,800,000
Non-Qualified Pension Plans [Member]
Accumulated pension benefit obligation	140,000	165,500
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Accumulated Benefit Obligation, Increase (Decrease) for Plan Amendment	(858)	(3,168)
Employer contributions	52,835	32,773
Entergy Arkansas [Member] | Qualified Pension Plans [Member]
Accumulated pension benefit obligation	1,008,152	1,463,966
Entergy Arkansas [Member] | Non-Qualified Pension Plans [Member]
Accumulated pension benefit obligation	2,192	2,482
Entergy Arkansas [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Accumulated Benefit Obligation, Increase (Decrease) for Plan Amendment	273	(85)
Defined Benefit Plan Refund to Employer		(767)
Employer contributions	1,573
Defined Benefit Plan Regulatory Asset Before Tax	12,303	1,894
Entergy Louisiana [Member] | Qualified Pension Plans [Member]
Accumulated pension benefit obligation	1,146,561	1,574,273
Entergy Louisiana [Member] | Non-Qualified Pension Plans [Member]
Accumulated pension benefit obligation	1,197	1,445
Entergy Louisiana [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Accumulated Benefit Obligation, Increase (Decrease) for Plan Amendment	323	357
Employer contributions	16,187	11,274
Defined Benefit Plan Regulatory Asset Before Tax	0	0
Entergy Mississippi [Member] | Qualified Pension Plans [Member]
Accumulated pension benefit obligation	292,596	407,851
Entergy Mississippi [Member] | Non-Qualified Pension Plans [Member]
Accumulated pension benefit obligation	3,594	3,377
Entergy Mississippi [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Accumulated Benefit Obligation, Increase (Decrease) for Plan Amendment	(1,300)	0
Defined Benefit Plan Refund to Employer		(393)
Employer contributions	759
Entergy New Orleans [Member] | Qualified Pension Plans [Member]
Accumulated pension benefit obligation	128,499	178,010
Entergy New Orleans [Member] | Non-Qualified Pension Plans [Member]
Accumulated pension benefit obligation	719	738
Entergy New Orleans [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Accumulated Benefit Obligation, Increase (Decrease) for Plan Amendment	0	0
Employer contributions	333	126
Entergy Texas [Member] | Qualified Pension Plans [Member]
Accumulated pension benefit obligation	245,428	342,441
Entergy Texas [Member] | Non-Qualified Pension Plans [Member]
Accumulated pension benefit obligation	3,776	7,355
Entergy Texas [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Accumulated Benefit Obligation, Increase (Decrease) for Plan Amendment	0	(3,776)
Defined Benefit Plan Refund to Employer	(23)
Employer contributions		98
Defined Benefit Plan Regulatory Asset Before Tax	8,085
System Energy [Member] | Qualified Pension Plans [Member]
Accumulated pension benefit obligation	269,583	366,920
System Energy [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Accumulated Benefit Obligation, Increase (Decrease) for Plan Amendment	141	69
Employer contributions	944	1,212
Defined Benefit Plan Regulatory Asset Before Tax	$ 3,265	$ 1,718