Leases (Components Of Minimum Lease Payments) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Current Year, Operating Leases	$ 76,663
Year Two, Operating Leases	69,620
Year Three, Operating Leases	67,218
Year Four, Operating Leases	51,127
Year Five, Operating Leases	41,531
Years thereafter, Operating Leases	90,787
Minimum lease payments, Operating Leases	396,946
Current Year, Capital Leases	4,694
Year Two, Capital Leases	3,255
Year Three, Capital Leases	3,124
Year Four, Capital Leases	3,065
Year Five, Capital Leases	2,887
Years thereafter, Capital Leases	21,891
Minimum lease payments, Capital Leases	38,916
Less: Amount representing interest, Capital Leases	11,934
Present value of net minimum lease payments, Capital Leases	26,982
Entergy Arkansas [Member]
Current Year, Operating Leases	17,648
Year Two, Operating Leases	14,667
Year Three, Operating Leases	15,419
Year Four, Operating Leases	8,871
Year Five, Operating Leases	6,697
Years thereafter, Operating Leases	25,818
Minimum lease payments, Operating Leases	89,120
Entergy Louisiana [Member]
Current Year, Operating Leases	23,947
Year Two, Operating Leases	22,053
Year Three, Operating Leases	22,461
Year Four, Operating Leases	16,700
Year Five, Operating Leases	12,097
Years thereafter, Operating Leases	22,966
Minimum lease payments, Operating Leases	120,224
Entergy Mississippi [Member]
Current Year, Operating Leases	8,014
Year Two, Operating Leases	7,171
Year Three, Operating Leases	6,830
Year Four, Operating Leases	5,878
Year Five, Operating Leases	4,200
Years thereafter, Operating Leases	5,865
Minimum lease payments, Operating Leases	37,958
Current Year, Capital Leases	1,570
Year Two, Capital Leases	131
Year Three, Capital Leases	0
Year Four, Capital Leases	0
Year Five, Capital Leases	0
Years thereafter, Capital Leases	0
Minimum lease payments, Capital Leases	1,701
Less: Amount representing interest, Capital Leases	111
Present value of net minimum lease payments, Capital Leases	1,590
Entergy New Orleans [Member]
Current Year, Operating Leases	2,324
Year Two, Operating Leases	2,065
Year Three, Operating Leases	1,882
Year Four, Operating Leases	1,627
Year Five, Operating Leases	1,218
Years thereafter, Operating Leases	1,864
Minimum lease payments, Operating Leases	10,980
Entergy Texas [Member]
Current Year, Operating Leases	5,361
Year Two, Operating Leases	4,882
Year Three, Operating Leases	3,841
Year Four, Operating Leases	2,335
Year Five, Operating Leases	1,546
Years thereafter, Operating Leases	2,009
Minimum lease payments, Operating Leases	$ 19,974