Decommissioning Trust Funds (Tables)

12 Months Ended

Dec. 31, 2015

Securities Held

The securities held as of December 31, 2015 and 2014 are summarized as follows:

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2015
Equity Securities		$3,195		$1,396		$2
Debt Securities	2,155		41		17
Total		$5,350		$1,437		$19

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2014
Equity Securities		$3,286		$1,513		$1
Debt Securities	2,085		76		6
Total		$5,371		$1,589		$7

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

The fair value and gross unrealized losses of available-for-sale equity and debt securities, summarized by investment type and length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2015:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$54		$2		$1,031		$15
More than 12 months	1		—		61		2
Total		$55		$2		$1,092		$17

The fair value and gross unrealized losses of available-for-sale equity and debt securities, summarized by investment type and length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2014:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$9		$1		$277		$2
More than 12 months	—		—		163		4
Total		$9		$1		$440		$6

Fair Value Of Debt Securities By Contractual Maturities

The fair value of debt securities, summarized by contractual maturities, as of December 31, 2015 and 2014 are as follows:

	2015		2014
	(In Millions)
less than 1 year		$77		$94
1 year - 5 years	857		783
5 years - 10 years	704		681
10 years - 15 years	124		173
15 years - 20 years	50		79
20 years+	343		275
Total		$2,155		$2,085

Entergy Arkansas [Member]

Securities Held

The securities held as of December 31, 2015 and 2014 are summarized as follows:

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2015
Equity Securities		$467.4		$234.4		$0.2
Debt Securities	303.9		4.1		2.2
Total		$771.3		$238.5		$2.4
2014
Equity Securities		$487.3		$248.9		$—
Debt Securities	282.6		6.2		1.1
Total		$769.9		$255.1		$1.1

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

The fair value and gross unrealized losses of available-for-sale equity and debt securities, summarized by investment type and length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2015:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$7.8		$0.2		$111.4		$1.7
More than 12 months	—		—		18.5		0.5
Total		$7.8		$0.2		$129.9		$2.2

The fair value and gross unrealized losses of available-for-sale equity and debt securities, summarized by investment type and length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2014:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$0.1		$—		$56.5		$0.3
More than 12 months	—		—		34.8		0.8
Total		$0.1		$—		$91.3		$1.1

Fair Value Of Debt Securities By Contractual Maturities

The fair value of debt securities, summarized by contractual maturities, as of December 31, 2015 and 2014 are as follows:

	2015		2014
	(In Millions)
less than 1 year		$1.8		$14.9
1 year - 5 years	145.2		127.3
5 years - 10 years	138.5		128.2
10 years - 15 years	2.4		1.7
15 years - 20 years	2.0		1.0
20 years+	14.0		9.5
Total		$303.9		$282.6

Entergy Louisiana [Member]

Securities Held

The securities held as of December 31, 2015 and 2014 are summarized as follows:

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2015
Equity Securities		$632.4		$283.7		$0.2
Debt Securities	409.9		13.2		2.4
Total		$1,042.3		$296.9		$2.6
2014
Equity Securities		$635.5		$294.3		$—
Debt Securities	385.8		18.8		0.7
Total		$1,021.3		$313.1		$0.7

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

The fair value and gross unrealized losses of available-for-sale equity and debt securities, summarized by investment type and length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2015:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$9.4		$0.2		$124.0		$2.0
More than 12 months	—		—		7.4		0.4
Total		$9.4		$0.2		$131.4		$2.4

The fair value and gross unrealized losses of available-for-sale equity and debt securities, summarized by investment type and length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2014:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$0.2		$—		$33.1		$0.2
More than 12 months	—		—		27.1		0.5
Total		$0.2		$—		$60.2		$0.7

Fair Value Of Debt Securities By Contractual Maturities

The fair value of debt securities, summarized by contractual maturities, as of December 31, 2015 and 2014 are as follows:

	2015		2014
	(In Millions)
less than 1 year		$27.1		$12.0
1 year - 5 years	124.0		118.0
5 years - 10 years	114.3		112.5
10 years - 15 years	39.3		50.9
15 years - 20 years	26.5		24.2
20 years+	78.7		68.2
Total		$409.9		$385.8

System Energy [Member]

Securities Held

The securities held as of December 31, 2015 and 2014 are summarized as follows:

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2015
Equity Securities		$423.7		$179.2		$0.3
Debt Securities	277.8		2.2		2.3
Total		$701.5		$181.4		$2.6
2014
Equity Securities		$424.5		$188.0		$—
Debt Securities	255.3		5.9		0.3
Total		$679.8		$193.9		$0.3

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

The fair value and gross unrealized losses of available-for-sale equity and debt securities, summarized by investment type and length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2015:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$8.3		$0.2		$200.4		$2.2
More than 12 months	0.9		0.1		5.0		0.1
Total		$9.2		$0.3		$205.4		$2.3

The fair value and gross unrealized losses of available-for-sale equity and debt securities, summarized by investment type and length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2014:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$0.1		$—		$51.6		$0.2
More than 12 months	—		—		6.5		0.1
Total		$0.1		$—		$58.1		$0.3

Fair Value Of Debt Securities By Contractual Maturities

The fair value of debt securities, summarized by contractual maturities, as of December 31, 2015 and 2014 are as follows:

	2015		2014
	(In Millions)
less than 1 year		$2.0		$33.5
1 year - 5 years	181.2		139.7
5 years - 10 years	63.0		53.5
10 years - 15 years	4.4		3.4
15 years - 20 years	1.6		3.2
20 years+	25.6		22.0
Total		$277.8		$255.3