Preferred Equity (Narratives) (Details) - USD ($)	1 Months Ended		12 Months Ended
	Oct. 31, 2015	Dec. 31, 2013	Dec. 31, 2016
Preferred Stock, 8.75% Rate [Member] | Entergy Finance Holding Inc [Member]
Preferred Equity [Line Items]
Preferred stock/preferred membership interests rate		8.75%	8.75%	[1]
Temporary Equity, Shares Issued		250,000
Temporary Equity, Par Value		$ 100
Temporary Equity, Redemption Price Per Share			$ 100
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs			$ 751,000
Preferred Stock, Cumulative $100 Par Value, 4.72% Series [Member] | Entergy Arkansas [Member]
Preferred Equity [Line Items]
Preferred stock/preferred membership interests rate			4.72%
Preferred Stock, Cumulative $100 Par Value, 4.75% Series [Member] | Entergy New Orleans [Member]
Preferred Equity [Line Items]
Preferred stock/preferred membership interests rate			4.75%
Preferred Stock, Cumulative One Thousand Dollar Par Value, Seven Point Five Percent Series [Member] | Entergy Utility Holding Company LLC [Member]
Preferred Equity [Line Items]
Preferred stock/preferred membership interests rate	7.50%		7.50%	[1]
Temporary Equity, Shares Issued	110,000
Temporary Equity, Par Value	$ 1,000
Temporary Equity, Redemption Price Per Share			$ 1,000
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs			$ 2,575,000

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