Preferred Equity (Schedule Of Number Of Shares And Units Authorized And Outstanding And Dollar Value Of Preferred Stock) (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended				12 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Oct. 31, 2015	Dec. 31, 2013	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Payments for Repurchase of Preferred Stock and Preference Stock					$ 53,868	$ 20,599	$ 115,283
Preferred Stock, Shares Authorized					450,000	892,307
Temporary Equity, Shares Outstanding					450,000	892,307
Temporary Equity, Carrying Amount, Attributable to Parent					$ 219,402	$ 197,803
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs					728
Entergy Arkansas [Member]
Payments for Repurchase of Preferred Stock and Preference Stock					$ 32,660	$ 0	85,283
Preferred Units, Authorized					0	313,500
Preferred Shares/Units, Outstanding					0	313,500
Temporary Equity, Carrying Amount, Attributable to Parent					$ 0	$ 31,350
Entergy Mississippi [Member]
Payments for Repurchase of Preferred Stock and Preference Stock					$ 21,208	$ 0	30,000
Preferred Units, Authorized					0	203,807
Preferred Shares/Units, Outstanding					0	203,807
Temporary Equity, Carrying Amount, Attributable to Parent					$ 0	$ 20,381
Entergy New Orleans [Member]
Payments for Repurchase of Preferred Stock and Preference Stock					$ 0	$ 20,599	$ 0
Utility [Member]
Preferred Units, Authorized					200,000	642,307
Preferred Shares/Units, Outstanding					200,000	642,307
Temporary Equity, Carrying Amount, Attributable to Parent					$ 195,153	$ 173,554
Preferred Stock, 4.32% - 4.72% Series [Member] | Entergy Arkansas [Member]
Preferred Units, Authorized					0	313,500
Preferred Shares/Units, Outstanding					0	313,500
Temporary Equity, Carrying Amount, Attributable to Parent					$ 0	$ 31,350
Preferred Stock, 4.36% - 4.92% Series [Member] | Entergy Mississippi [Member]
Preferred Units, Authorized					0	203,807
Preferred Shares/Units, Outstanding					0	203,807
Temporary Equity, Carrying Amount, Attributable to Parent					$ 0	$ 20,381
Preferred Stock, 8.75% Rate [Member] | Entergy Finance Holding Inc [Member]
Preferred Stock, Shares Authorized				250,000	250,000	250,000
Temporary Equity, Shares Outstanding					250,000	250,000
Temporary Equity, Carrying Amount, Attributable to Parent					$ 24,249	$ 24,249
Preferred stock/preferred membership interests rate				8.75%	8.75%
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs					$ 751
Preferred Stock, Cumulative $100 Par Value, 4.32% Series [Member] | Entergy Arkansas [Member]
Preferred Stock, Call Price per Share					$ 0.00
Preferred Units, Authorized					0	70,000
Preferred Shares/Units, Outstanding					0	70,000
Temporary Equity, Carrying Amount, Attributable to Parent					$ 0	$ 7,000
Preferred stock/preferred membership interests rate					4.32%
Preferred Stock, Par or Stated Value Per Share					$ 100
Preferred Stock, Cumulative $100 Par Value, 4.72% Series [Member] | Entergy Arkansas [Member]
Preferred Stock, Call Price per Share					$ 0.00
Preferred Units, Authorized					0	93,500
Preferred Shares/Units, Outstanding					0	93,500
Temporary Equity, Carrying Amount, Attributable to Parent					$ 0	$ 9,350
Preferred stock/preferred membership interests rate					4.72%
Preferred Stock, Par or Stated Value Per Share					$ 100
Preferred Stock, Cumulative $100 Par Value, 4.36% Series [Member] | Entergy Mississippi [Member]
Preferred Stock, Call Price per Share					$ 0.00
Preferred Units, Authorized					0	59,920
Preferred Shares/Units, Outstanding					0	59,920
Temporary Equity, Carrying Amount, Attributable to Parent					$ 0	$ 5,992
Preferred stock/preferred membership interests rate					4.36%
Preferred Stock, Par or Stated Value Per Share					$ 100
Preferred Stock, Cumulative $100 Par Value, 4.56% Series [Member] | Entergy Arkansas [Member]
Preferred Stock, Call Price per Share					$ 0.00
Preferred Units, Authorized					0	75,000
Preferred Shares/Units, Outstanding					0	75,000
Temporary Equity, Carrying Amount, Attributable to Parent					$ 0	$ 7,500
Preferred stock/preferred membership interests rate					4.56%
Preferred Stock, Par or Stated Value Per Share					$ 100
Preferred Stock, Cumulative $100 Par Value, 4.56% Series [Member] | Entergy Mississippi [Member]
Preferred Stock, Call Price per Share					$ 0.00
Preferred Units, Authorized					0	43,887
Preferred Shares/Units, Outstanding					0	43,887
Temporary Equity, Carrying Amount, Attributable to Parent					$ 0	$ 4,389
Preferred stock/preferred membership interests rate					4.56%
Preferred Stock, Par or Stated Value Per Share					$ 100
Preferred Stock, Cumulative $100 Par Value, 4.56% 1965 Series [Member] | Entergy Arkansas [Member]
Preferred Stock, Call Price per Share					$ 0.00
Preferred Units, Authorized					0	75,000
Preferred Shares/Units, Outstanding					0	75,000
Temporary Equity, Carrying Amount, Attributable to Parent					$ 0	$ 7,500
Preferred stock/preferred membership interests rate					4.56%
Preferred Stock, Par or Stated Value Per Share					$ 100
Preferred Stock, Cumulative $100 Par Value, 4.92% Series [Member] | Entergy Mississippi [Member]
Preferred Stock, Call Price per Share					$ 0.00
Preferred Units, Authorized					0	100,000
Preferred Shares/Units, Outstanding					0	100,000
Temporary Equity, Carrying Amount, Attributable to Parent					$ 0	$ 10,000
Preferred stock/preferred membership interests rate					4.92%
Preferred Stock, Par or Stated Value Per Share					$ 100
Preferred Stock, Cumulative One Thousand Dollar Par Value, Seven Point Five Percent Series [Member] | Entergy Utility Holding Company LLC [Member]
Preferred Units, Authorized			110,000		110,000	110,000
Preferred Shares/Units, Outstanding					110,000	110,000
Temporary Equity, Carrying Amount, Attributable to Parent					$ 107,425	$ 107,425
Preferred stock/preferred membership interests rate			7.50%		7.50%
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs					$ 2,575
Preferred Stock, Cumulative $1,000 Par Value 6.25% Series [Domain] | Entergy Utility Holding Company LLC [Member]
Preferred Units, Authorized		15,000			15,000	15,000
Preferred Shares/Units, Outstanding					15,000	15,000
Temporary Equity, Carrying Amount, Attributable to Parent					$ 14,366	$ 14,398
Preferred stock/preferred membership interests rate		6.25%			6.25%
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs					$ 634
Preferred Stock, Cumulative $1,000 Par Value 6.75% Series [Domain] | Entergy Utility Holding Company LLC [Member]
Preferred Units, Authorized	75,000				75,000	0
Preferred Shares/Units, Outstanding					75,000	0
Temporary Equity, Carrying Amount, Attributable to Parent					$ 73,362	$ 0
Preferred stock/preferred membership interests rate	6.75%				6.75%
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs					$ 1,638
Minimum [Member] | Preferred Stock, 4.32% - 4.72% Series [Member] | Entergy Arkansas [Member]
Preferred stock/preferred membership interests rate					4.32%
Minimum [Member] | Preferred Stock, 4.36% - 4.92% Series [Member] | Entergy Mississippi [Member]
Preferred stock/preferred membership interests rate					4.36%
Maximum [Member] | Preferred Stock, 4.32% - 4.72% Series [Member] | Entergy Arkansas [Member]
Preferred stock/preferred membership interests rate					4.72%
Maximum [Member] | Preferred Stock, 4.36% - 4.92% Series [Member] | Entergy Mississippi [Member]
Preferred stock/preferred membership interests rate					4.92%