Income Taxes (Schedule Of Estimated Tax Attributes Carryovers And Their Expiration Dates) (Details) (USD $)																										12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Federal [Member] Parent Company [Member]	Dec. 31, 2013 Federal [Member] Entergy Arkansas [Member]	Dec. 31, 2013 Federal [Member] Entergy Gulf States Louisiana [Member]	Dec. 31, 2013 Federal [Member] Entergy Louisiana [Member]	Dec. 31, 2013 Federal [Member] Entergy Mississippi [Member]	Dec. 31, 2013 Federal [Member] Entergy New Orleans [Member]	Dec. 31, 2013 Federal [Member] Entergy Texas [Member]	Dec. 31, 2013 Federal [Member] System Energy [Member]	Dec. 31, 2013 State and Local Jurisdiction [Member]	Dec. 31, 2013 State and Local Jurisdiction [Member] Parent Company [Member]	Dec. 31, 2013 State and Local Jurisdiction [Member] Entergy Arkansas [Member]	Dec. 31, 2013 State and Local Jurisdiction [Member] Entergy Gulf States Louisiana [Member]	Dec. 31, 2013 State and Local Jurisdiction [Member] Entergy Louisiana [Member]	Dec. 31, 2013 State and Local Jurisdiction [Member] Entergy Mississippi [Member]	Dec. 31, 2013 State and Local Jurisdiction [Member] Entergy New Orleans [Member]	Dec. 31, 2013 State and Local Jurisdiction [Member] Entergy Texas [Member]	Dec. 31, 2013 State and Local Jurisdiction [Member] System Energy [Member]	Dec. 31, 2013 Other Federal And State [Member]	Dec. 31, 2013 Other Federal [Member] Entergy Arkansas [Member]	Dec. 31, 2012 Other Federal [Member] Entergy Arkansas [Member]	Dec. 31, 2013 Other Federal [Member] Entergy Gulf States Louisiana [Member]	Dec. 31, 2012 Other Federal [Member] Entergy Gulf States Louisiana [Member]	Dec. 31, 2012 Other Federal [Member] Entergy Louisiana [Member]	Dec. 31, 2013 Minimum [Member] Federal [Member] Parent Company [Member]	Dec. 31, 2013 Minimum [Member] Federal [Member] Entergy Arkansas [Member]	Dec. 31, 2013 Minimum [Member] Federal [Member] Entergy Gulf States Louisiana [Member]	Dec. 31, 2013 Minimum [Member] Federal [Member] Entergy Louisiana [Member]	Dec. 31, 2013 Minimum [Member] Federal [Member] Entergy Mississippi [Member]	Dec. 31, 2013 Minimum [Member] Federal [Member] Entergy New Orleans [Member]	Dec. 31, 2013 Minimum [Member] Federal [Member] System Energy [Member]	Dec. 31, 2013 Minimum [Member] State and Local Jurisdiction [Member]	Dec. 31, 2013 Minimum [Member] State and Local Jurisdiction [Member] Parent Company [Member]	Dec. 31, 2013 Minimum [Member] State and Local Jurisdiction [Member] Entergy Arkansas [Member]	Dec. 31, 2013 Minimum [Member] State and Local Jurisdiction [Member] Entergy Gulf States Louisiana [Member]	Dec. 31, 2013 Minimum [Member] State and Local Jurisdiction [Member] Entergy Louisiana [Member]	Dec. 31, 2013 Minimum [Member] State and Local Jurisdiction [Member] Entergy Mississippi [Member]	Dec. 31, 2013 Minimum [Member] State and Local Jurisdiction [Member] Entergy New Orleans [Member]	Dec. 31, 2013 Minimum [Member] State and Local Jurisdiction [Member] Entergy Texas [Member]	Dec. 31, 2013 Minimum [Member] State and Local Jurisdiction [Member] System Energy [Member]	Dec. 31, 2013 Minimum [Member] Other Federal And State [Member]	Dec. 31, 2013 Minimum [Member] Other Federal [Member] Entergy Arkansas [Member]	Dec. 31, 2013 Minimum [Member] Other Federal [Member] Entergy Gulf States Louisiana [Member]	Dec. 31, 2013 Minimum [Member] Other Federal [Member] Entergy Louisiana [Member]	Dec. 31, 2013 Minimum [Member] Other Federal [Member] Entergy Mississippi [Member]	Dec. 31, 2013 Minimum [Member] Other Federal [Member] Entergy New Orleans [Member]	Dec. 31, 2013 Minimum [Member] Other Federal [Member] System Energy [Member]	Dec. 31, 2013 Maximum [Member] Federal [Member] Parent Company [Member]	Dec. 31, 2013 Maximum [Member] Federal [Member] Entergy Arkansas [Member]	Dec. 31, 2013 Maximum [Member] Federal [Member] Entergy Gulf States Louisiana [Member]	Dec. 31, 2013 Maximum [Member] Federal [Member] Entergy Louisiana [Member]	Dec. 31, 2013 Maximum [Member] Federal [Member] Entergy Mississippi [Member]	Dec. 31, 2013 Maximum [Member] Federal [Member] Entergy New Orleans [Member]	Dec. 31, 2013 Maximum [Member] Federal [Member] System Energy [Member]	Dec. 31, 2013 Maximum [Member] State and Local Jurisdiction [Member]	Dec. 31, 2013 Maximum [Member] State and Local Jurisdiction [Member] Parent Company [Member]	Dec. 31, 2013 Maximum [Member] State and Local Jurisdiction [Member] Entergy Arkansas [Member]	Dec. 31, 2013 Maximum [Member] State and Local Jurisdiction [Member] Entergy Gulf States Louisiana [Member]	Dec. 31, 2013 Maximum [Member] State and Local Jurisdiction [Member] Entergy Louisiana [Member]	Dec. 31, 2013 Maximum [Member] State and Local Jurisdiction [Member] Entergy Mississippi [Member]	Dec. 31, 2013 Maximum [Member] State and Local Jurisdiction [Member] Entergy New Orleans [Member]	Dec. 31, 2013 Maximum [Member] State and Local Jurisdiction [Member] Entergy Texas [Member]	Dec. 31, 2013 Maximum [Member] State and Local Jurisdiction [Member] System Energy [Member]	Dec. 31, 2013 Maximum [Member] Other Federal And State [Member]	Dec. 31, 2013 Maximum [Member] Other Federal [Member] Entergy Arkansas [Member]	Dec. 31, 2013 Maximum [Member] Other Federal [Member] Entergy Gulf States Louisiana [Member]	Dec. 31, 2013 Maximum [Member] Other Federal [Member] Entergy Louisiana [Member]	Dec. 31, 2013 Maximum [Member] Other Federal [Member] Entergy Mississippi [Member]	Dec. 31, 2013 Maximum [Member] Other Federal [Member] Entergy New Orleans [Member]	Dec. 31, 2013 Maximum [Member] Other Federal [Member] System Energy [Member]
Operating Loss Carryforwards [Line Items]
Operating losses, Carryover Amount			$ 12,800,000,000	$ 1,200,000,000	$ 280,000,000	$ 2,000,000,000	$ 82,000,000	$ 56,000,000	$ 0	$ 583,000,000		$ 10,900,000,000	$ 109,000,000	$ 685,000,000	$ 2,800,000,000		$ 23,000,000		$ 0
Operating losses, Year(s) of expiration																										Dec. 31, 2023	Dec. 31, 2029	Dec. 31, 2029	Dec. 31, 2028	Dec. 31, 2029	Dec. 31, 2030	Dec. 31, 2029		Dec. 31, 2014	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024		Dec. 31, 2026										Dec. 31, 2033	Dec. 31, 2031	Dec. 31, 2032	Dec. 31, 2033	Dec. 31, 2032	Dec. 31, 2032	Dec. 31, 2032		Dec. 31, 2032	Dec. 31, 2026	Dec. 31, 2027	Dec. 31, 2027		Dec. 31, 2027
Capital losses, Carryover Amount	13,140,000	23,114,000									1,900,000
Capital losses, Year(s) of expiration																																	2015																							2016
Tax credits, Carryover Amount				$ 2,000,000	$ 1,000,000	$ 3,000,000	$ 1,000,000	$ 1,000,000		$ 2,000,000						$ 12,400,000		$ 3,900,000	$ 18,800,000	$ 86,700,000	$ 0	$ 0	$ 0	$ 0	$ 0
Tax credits, Year(s) of expiration																																						2014		2014	2015	2014	2024	2024	2026	2024	2024	2024													2018		2027	2018	2032	2032	2032	2032	2032	2032	2032