Equity (Schedule Of Earnings Per Share, Basic And Diluted) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Stock options, Shares	400,000	200,000	300,000	200,000
Stock options $/share	$ 0	$ 0	$ 0	$ 0
Restricted stock, Shares	800,000	700,000	700,000	500,000
Restricted stock $/share	$ (0.01)	$ (0.01)	$ 0	$ 0
Incremental Common Shares Attributable to Dilutive Effect of Equity Forward Agreements	1,500,000	0	900,000	0
Average Dilutive Effect Of Equity Forwards	$ (0.02)	$ 0.00	$ (0.03)	$ 0.00
Basic earnings per share
Net income (loss) attributable to Entergy Corporation, Income	$ 536,379	$ 398,198	$ 914,560	$ 890,726
Net Income Attributable to Entergy Corporation, Shares	181,002,303	179,563,819	180,845,440	179,458,914
Net Income Attributable to Entergy Corporation, $/share	$ 2.96	$ 2.22	$ 5.06	$ 4.96
Diluted earnings per share, Shares	183,664,583	180,464,069	182,692,325	180,163,074
Diluted earnings per share $/share	$ 2.92	$ 2.21	$ 5.01	$ 4.94