Decommissioning Trust Funds (Tables)

3 Months Ended

Mar. 31, 2017

Securities Held

The securities held as of March 31, 2017 and December 31, 2016 are summarized as follows:

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2017
Equity Securities		$4,439		$1,823		$5
Debt Securities	2,230		35		22
Total		$6,669		$1,858		$27

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2016
Equity Securities		$3,511		$1,673		$1
Debt Securities	2,213		34		27
Total		$5,724		$1,707		$28

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 March 31, 2017:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$13		$5		$1,087		$21
More than 12 months	—		—		13		1
Total		$13		$5		$1,100		$22

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, 2016:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$23		$1		$1,169		$26
More than 12 months	1		—		20		1
Total		$24		$1		$1,189		$27

Fair Value Of Debt Securities By Contractual Maturities

The fair value of debt securities, summarized by contractual maturities, as of March 31, 2017 and December 31, 2016 are as follows:

	2017		2016
	(In Millions)
less than 1 year		$99		$125
1 year - 5 years	783		763
5 years - 10 years	742		719
10 years - 15 years	113		109
15 years - 20 years	69		73
20 years+	424		424
Total		$2,230		$2,213

Entergy Arkansas [Member]

Securities Held

Entergy Arkansas holds debt and equity securities, classified as available-for-sale, in nuclear decommissioning trust accounts.  The securities held as of March 31, 2017 and December 31, 2016 are summarized as follows:

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2017
Equity Securities		$557.7		$307.2		$—
Debt Securities	310.0		3.1		3.6
Total		$867.7		$310.3		$3.6
2016
Equity Securities		$525.4		$281.5		$—
Debt Securities	309.3		3.4		4.2
Total		$834.7		$284.9		$4.2

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 March 31, 2017:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$1.1		$—		$150.5		$3.6
More than 12 months	—		—		—		—
Total		$1.1		$—		$150.5		$3.6

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, 2016:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$—		$—		$146.7		$4.2
More than 12 months	—		—		—		—
Total		$—		$—		$146.7		$4.2

Fair Value Of Debt Securities By Contractual Maturities

The fair value of debt securities, summarized by contractual maturities, as of March 31, 2017 and December 31, 2016 are as follows:

	2017		2016
	(In Millions)
less than 1 year		$17.8		$16.7
1 year - 5 years	109.7		106.2
5 years - 10 years	162.1		161.2
10 years - 15 years	7.0		7.7
15 years - 20 years	1.0		1.0
20 years+	12.4		16.5
Total		$310.0		$309.3

Entergy Louisiana [Member]

Securities Held

Entergy Louisiana holds debt and equity securities, classified as available-for-sale, in nuclear decommissioning trust accounts.  The securities held as of March 31, 2017 and December 31, 2016 are summarized as follows:

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2017
Equity Securities		$750.6		$382.7		$—
Debt Securities	439.5		8.5		4.3
Total		$1,190.1		$391.2		$4.3
2016
Equity Securities		$715.9		$346.6		$—
Debt Securities	424.8		8.0		5.0
Total		$1,140.7		$354.6		$5.0

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 March 31, 2017:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$1.6		$—		$189.9		$4.1
More than 12 months	—		—		2.7		0.2
Total		$1.6		$—		$192.6		$4.3

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, 2016:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$—		$—		$198.8		$4.8
More than 12 months	—		—		4.8		0.2
Total		$—		$—		$203.6		$5.0

Fair Value Of Debt Securities By Contractual Maturities

The fair value of debt securities, summarized by contractual maturities, as of March 31, 2017 and December 31, 2016 are as follows:

	2017		2016
	(In Millions)
less than 1 year		$28.1		$31.4
1 year - 5 years	101.2		99.1
5 years - 10 years	126.4		122.8
10 years - 15 years	44.0		41.4
15 years - 20 years	30.3		30.9
20 years+	109.5		99.2
Total		$439.5		$424.8

System Energy [Member]

Securities Held

System Energy holds debt and equity securities, classified as available-for-sale, in nuclear decommissioning trust accounts.  The securities held as of March 31, 2017 and December 31, 2016 are summarized as follows:

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2017
Equity Securities		$509.0		$245.4		$—
Debt Securities	307.0		2.4		3.4
Total		$816.0		$247.8		$3.4
2016
Equity Securities		$473.9		$221.9		$0.1
Debt Securities	306.6		2.0		4.5
Total		$780.5		$223.9		$4.6

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 March 31, 2017:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$1.0		$—		$200.5		$3.3
More than 12 months	—		—		0.2		0.1
Total		$1.0		$—		$200.7		$3.4

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, 2016:

	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$—		$—		$220.9		$4.4
More than 12 months	—		0.1		0.8		0.1
Total		$—		$0.1		$221.7		$4.5

Fair Value Of Debt Securities By Contractual Maturities

The fair value of debt securities, summarized by contractual maturities, as of March 31, 2017 and December 31, 2016 are as follows:

	2017		2016
	(In Millions)
less than 1 year		$1.7		$6.6
1 year - 5 years	188.5		188.2
5 years - 10 years	84.6		78.5
10 years - 15 years	1.4		1.3
15 years - 20 years	7.6		7.8
20 years+	23.2		24.2
Total		$307.0		$306.6