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
		Oct. 31, 2015	Dec. 31, 2013	Dec. 31, 2016		Dec. 31, 2015
Preferred Stock, Shares Authorized				1,075,105		5,375,105
Preferred Stock, Shares Outstanding				1,075,105		5,375,105
Preferred Stock, Value				$ 203,185		$ 318,185
Preferred Shares/Units, Authorized				825,105		5,125,105
Preferred Shares/Units, Outstanding				825,105		5,125,105
Preferred Shares/Units, Value				$ 178,936		$ 293,936
Entergy Arkansas [Member]
Preferred Stock, Shares Outstanding				313,500		3,413,500
Preferred Stock, Value				$ 31,350		$ 116,350
Entergy Mississippi [Member]
Preferred Stock, Shares Outstanding				203,807		1,403,807
Preferred Stock, Value				$ 20,381		$ 50,381
Entergy New Orleans [Member]
Preferred Stock, Shares Outstanding				197,798		197,798
Preferred Stock, Value				$ 19,780		$ 19,780
Preferred Stock, 4.32% - 6.45% Series [Member] | Entergy Arkansas [Member]
Preferred Shares/Units, Authorized				313,500		3,413,500
Preferred Shares/Units, Outstanding				313,500		3,413,500
Preferred Shares/Units, Value				$ 31,350		$ 116,350
Preferred Stock, 4.36% - 6.25% Series [Member] | Entergy Mississippi [Member]
Preferred Shares/Units, Authorized				203,807		1,403,807
Preferred Shares/Units, Outstanding				203,807		1,403,807
Preferred Shares/Units, Value				$ 20,381		$ 50,381
Preferred Stock, 4.36% - 5.56% Series [Member] | Entergy New Orleans [Member]
Preferred Shares/Units, Authorized				197,798		197,798
Preferred Shares/Units, Outstanding				197,798		197,798
Preferred Shares/Units, Value				$ 19,780		$ 19,780
Preferred Stock, 8.75% Rate [Member] | Entergy Finance Holding Inc [Member]
Preferred Stock, Shares Authorized	[1]			250,000		250,000
Preferred Stock, Shares Outstanding	[1]			250,000		250,000
Preferred Stock, Value	[1]			$ 24,249		$ 24,249
Preferred stock/preferred membership interests rate			8.75%	8.75%	[1]
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, Shares Outstanding				70,000		70,000
Preferred Stock, Value				$ 7,000		$ 7,000
Preferred Stock, Call Price per Share				$ 103.65
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, Shares Outstanding				93,500		93,500
Preferred Stock, Value				$ 9,350		$ 9,350
Preferred Stock, Call Price per Share				$ 107.00
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, Shares Outstanding				59,920		59,920
Preferred Stock, Value				$ 5,992		$ 5,992
Preferred Stock, Call Price per Share				$ 103.86
Preferred stock/preferred membership interests rate				4.36%
Preferred Stock, Par or Stated Value Per Share				$ 100
Preferred Stock, Cumulative $100 Par Value, 4.36% Series [Member] | Entergy New Orleans [Member]
Preferred Stock, Shares Outstanding				60,000		60,000
Preferred Stock, Value				$ 6,000		$ 6,000
Preferred Stock, Call Price per Share				$ 104.58
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, Shares Outstanding				75,000		75,000
Preferred Stock, Value				$ 7,500		$ 7,500
Preferred Stock, Call Price per Share				$ 102.83
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, Shares Outstanding				43,887		43,887
Preferred Stock, Value				$ 4,389		$ 4,389
Preferred Stock, Call Price per Share				$ 107.00
Preferred stock/preferred membership interests rate				4.56%
Preferred Stock, Cumulative $100 Par Value, 4.56% 1965 Series [Member] | Entergy Arkansas [Member]
Preferred Stock, Shares Outstanding				75,000		75,000
Preferred Stock, Value				$ 7,500		$ 7,500
Preferred Stock, Call Price per Share				$ 102.50
Preferred stock/preferred membership interests rate				4.56%
Preferred Stock, Par or Stated Value Per Share				$ 100
Preferred Stock, Cumulative $100 Par Value, 6.08% Series [Member] | Entergy Arkansas [Member]
Preferred Stock, Shares Outstanding				0		100,000
Preferred Stock, Value				$ 0		$ 10,000
Preferred Stock, Call Price per Share				$ 0.00
Preferred stock/preferred membership interests rate				6.08%
Preferred Stock, Par or Stated Value Per Share				$ 100
Preferred Stock, Cumulative $25 Par Value, 6.45% Series [Member] | Entergy Arkansas [Member]
Preferred Stock, Shares Outstanding				0		3,000,000
Preferred Stock, Value				$ 0		$ 75,000
Preferred Stock, Call Price per Share				$ 0
Preferred stock/preferred membership interests rate				6.45%
Preferred Stock, Par or Stated Value Per Share				$ 25
Preferred Stock, Cumulative $100 Par Value, 4.92% Series [Member] | Entergy Mississippi [Member]
Preferred Stock, Shares Outstanding				100,000		100,000
Preferred Stock, Value				$ 10,000		$ 10,000
Preferred Stock, Call Price per Share				$ 102.88
Preferred stock/preferred membership interests rate				4.92%
Preferred Stock, Cumulative $25 Par Value, 6.25% Series [Member] | Entergy Mississippi [Member]
Preferred Stock, Shares Outstanding				0		1,200,000
Preferred Stock, Value				$ 0		$ 30,000
Preferred Stock, Call Price per Share				$ 0
Preferred stock/preferred membership interests rate				6.25%
Preferred Stock, Par or Stated Value Per Share				$ 25
Preferred Stock, Cumulative $100 Par Value, 4.75% Series [Member] | Entergy New Orleans [Member]
Preferred Stock, Shares Outstanding				77,798		77,798
Preferred Stock, Value				$ 7,780		$ 7,780
Preferred Stock, Call Price per Share				$ 105.00
Preferred stock/preferred membership interests rate				4.75%
Preferred Stock, Par or Stated Value Per Share				$ 100
Preferred Stock, Cumulative $100 Par Value, 5.56% Series [Member] | Entergy New Orleans [Member]
Preferred Stock, Shares Outstanding				60,000		60,000
Preferred Stock, Value				$ 6,000		$ 6,000
Preferred Stock, Call Price per Share				$ 102.59
Preferred stock/preferred membership interests rate				5.56%
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 Shares/Units, Authorized	[2]			110,000		110,000
Preferred Shares/Units, Outstanding	[2]			110,000		110,000
Preferred Shares/Units, Value	[2]			$ 107,425		$ 107,425
Preferred stock/preferred membership interests rate		7.50%		7.50%	[1]
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs				$ 2,575
Minimum [Member] | Preferred Stock, 4.32% - 6.45% Series [Member] | Entergy Arkansas [Member]
Preferred stock/preferred membership interests rate				4.32%
Minimum [Member] | Preferred Stock, 4.36% - 6.25% Series [Member] | Entergy Mississippi [Member]
Preferred stock/preferred membership interests rate				4.36%
Minimum [Member] | Preferred Stock, 4.36% - 5.56% Series [Member] | Entergy New Orleans [Member]
Preferred stock/preferred membership interests rate				4.36%
Maximum [Member] | Preferred Stock, 4.32% - 6.45% Series [Member] | Entergy Arkansas [Member]
Preferred stock/preferred membership interests rate				6.45%
Maximum [Member] | Preferred Stock, 4.36% - 6.25% Series [Member] | Entergy Mississippi [Member]
Preferred stock/preferred membership interests rate				6.25%
Maximum [Member] | Preferred Stock, 4.36% - 5.56% Series [Member] | Entergy New Orleans [Member]
Preferred stock/preferred membership interests rate				5.56%

[1] Dollar amount outstanding is net of $751 thousand of preferred stock issuance costs.

[2] Dollar amount outstanding is net of $2,575 thousand of preferred stock issuance costs.