Variable Interest Entities (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Variable Interest Entity [Line Items]
Assets	$ 59,833,526		$ 59,454,242
Entergy New Orleans [Member]
Variable Interest Entity [Line Items]
Assets	2,058,947		2,150,323
Entergy Louisiana [Member]
Variable Interest Entity [Line Items]
Assets	28,048,040		27,675,838
System Energy [Member]
Variable Interest Entity [Line Items]
Assets	$ 4,379,851		4,372,624
System Energy [Member] | Grand Gulf [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	11.50%
Payments on lease, including interest	$ 8,600	$ 8,600
Entergy Arkansas [Member]
Variable Interest Entity [Line Items]
Assets	12,655,739		$ 12,565,119
Entergy Arkansas [Member] | AR Searcy Partnership, LLC
Variable Interest Entity [Line Items]
Assets	142,000
Ownership Interest in Partnership, Carrying Value	$ 113,000