Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flow hedges net unrealized gain (loss), tax expense (benefit)	$ 28,516	$ 5,830	$ (22,570)
Pension and other postretirement liabilities, tax expense	(6,539)	30,299	(4,057)
Net unrealized investment gains, tax expense	14,023	6,393	80,069
Foreign currency translation, tax expense	0	0	(403)
Entergy Louisiana [Member]
Pension and other postretirement liabilities, tax expense	$ 3,781	$ 17,743	$ 234