Retirement And Other Postretirement Benefits (Narrative) (Details) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Change in Plan Assets
Pension contributions made through Year To Date				$ 105,800,000
Entergy Arkansas [Member]
Change in Plan Assets
Expected 2013 pension contributions				35,382,000
Pension contributions made through Year To Date				21,729,000
Remaining estimated pension contributions to be made in 2013	13,653,000	13,653,000		13,653,000
Entergy Texas [Member]
Change in Plan Assets
Expected 2013 pension contributions				6,880,000
Pension contributions made through Year To Date				4,270,000
Remaining estimated pension contributions to be made in 2013	2,610,000	2,610,000		2,610,000
Scenario, Forecast [Member]
Change in Plan Assets
Expected 2013 pension contributions				163,400,000
Non-Qualified Pension Plans [Member] | Parent Company [Member]
Change in Plan Assets
Net periodic benefit costs		33,100,000	5,100,000	44,100,000	15,300,000
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	28,100,000
Non-Qualified Pension Plans [Member] | Entergy Arkansas [Member]
Change in Plan Assets
Net periodic benefit costs		121,000	107,000	326,000	321,000
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements				19,000
Non-Qualified Pension Plans [Member] | Entergy Texas [Member]
Change in Plan Assets
Net periodic benefit costs		560,000	163,000	857,000	489,000
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements				$ 415,000