Equity (Schedule Of Earnings Per Share, Basic And Diluted) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Stock options, Shares	300,000	200,000	300,000	200,000
Stock options $/share	$ 0	$ 0	$ 0	$ 0
Restricted stock, Shares		500,000		400,000
Restricted stock $/share	$ (0.01)	$ (0.01)	$ 0	$ 0
Incremental Common Shares Attributable to Dilutive Effect of Equity Forward Agreements	1,200,000	0	600,000	0
Average Dilutive Effect Of Equity Forwards	$ (0.01)	$ 0.00	$ (0.01)	$ 0.00
Basic earnings per share
Net income (loss) attributable to Entergy Corporation, Income	$ 245,421	$ 409,922	$ 378,181	$ 492,528
Net Income Attributable to Entergy Corporation, Shares	180,823,203	179,475,346	180,765,708	179,405,592
Net Income Attributable to Entergy Corporation, $/share	$ 1.36	$ 2.28	$ 2.09	$ 2.75
Diluted earnings per share, Shares	182,982,630	180,234,694	182,208,328	180,032,233
Diluted earnings per share $/share	$ 1.34	$ 2.27	$ 2.08	$ 2.74