Retirement, Other Postretirement Benefits, And Defined Contribution Plans (Schedule Of Projected Benefit Obligations) (Details) - Non-Qualified Pension Plans [Member] - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Projected Benefit Obligation	$ 162,800	$ 147,000
Accumulated pension benefit obligation	143,400	131,900
Entergy Arkansas [Member]
Projected Benefit Obligation	2,755	2,752
Accumulated pension benefit obligation	2,248	2,519
Entergy Louisiana [Member]
Projected Benefit Obligation	1,682	1,881
Accumulated pension benefit obligation	1,682	1,881
Entergy Mississippi [Member]
Projected Benefit Obligation	3,286	2,732
Accumulated pension benefit obligation	2,938	2,427
Entergy New Orleans [Member]
Projected Benefit Obligation	231	206
Accumulated pension benefit obligation	230	206
Entergy Texas [Member]
Projected Benefit Obligation	7,783	7,952
Accumulated pension benefit obligation	$ 7,391	$ 7,724