Decommissioning Trust Funds (Tables)

12 Months Ended

Dec. 31, 2019

Securities Held

The available-for-sale securities held as of December 31, 2019 and 2018 are summarized as follows:

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2019
Debt Securities (a)		$2,456		$96		$6
2018
Debt Securities (a)		$2,495		$19		$35

(a) Debt securities presented herein do not include the $507 million and $389 million of debt securities held in the wholly-owned registered investment company as of December 31, 2019 and 2018, respectively, which are not accounted for as available-for-sale.    

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

The fair value and gross unrealized losses of available-for-sale debt securities, summarized by length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2019:

	Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$404		$5
More than 12 months	38		1
Total		$442		$6

The fair value and gross unrealized losses of available-for-sale debt securities, summarized by length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2018:

	Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$652		$9
More than 12 months	782		26
Total		$1,434		$35

Fair Value Of Debt Securities By Contractual Maturities

The fair value of available-for-sale debt securities, summarized by contractual maturities, as of December 31, 2019 and 2018 are as follows:

	2019		2018
	(In Millions)
Less than 1 year		$128		$199
1 year - 5 years	807		1,066
5 years - 10 years	666		544
10 years - 15 years	125		77
15 years - 20 years	126		78
20 years+	604		531
Total		$2,456		$2,495

Entergy Arkansas [Member]

Securities Held

The available-for-sale securities held as of December 31, 2019 and 2018 are summarized as follows:

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2019
Debt Securities		$412.8		$9.9		$2.6
2018
Debt Securities		$381.3		$0.6		$8.2

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

The fair value and gross unrealized losses of available-for-sale debt securities, summarized by length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2019:

	Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$104.8		$2.5
More than 12 months	7.7		0.1
Total		$112.5		$2.6

The fair value and gross unrealized losses of available-for-sale debt securities, summarized by length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2018:

	Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$65.8		$0.5
More than 12 months	231.1		7.7
Total		$296.9		$8.2

Fair Value Of Debt Securities By Contractual Maturities

The fair value of available-for-sale debt securities, summarized by contractual maturities, as of December 31, 2019 and 2018 are as follows:

	2019		2018
	(In Millions)
Less than 1 year		$44.1		$32.5
1 year - 5 years	109.1		170.3
5 years - 10 years	156.0		114.0
10 years - 15 years	31.3		10.3
15 years - 20 years	23.8		8.1
20 years+	48.5		46.1
Total		$412.8		$381.3

Entergy Louisiana [Member]

Securities Held

The available-for-sale securities held as of December 31, 2019 and 2018 are summarized as follows:

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2019
Debt Securities		$601.5		$29.3		$0.8
2018
Debt Securities		$532.9		$4.1		$6.0

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

The fair value and gross unrealized losses of available-for-sale debt securities, summarized by length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2019:

	Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$71.2		$0.8
More than 12 months	7.9		—
Total		$79.1		$0.8

The fair value and gross unrealized losses of available-for-sale debt securities, summarized by length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2018:

	Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$170.1		$2.1
More than 12 months	145.8		3.9
Total		$315.9		$6.0

Fair Value Of Debt Securities By Contractual Maturities

The fair value of available-for-sale debt securities, summarized by contractual maturities, as of December 31, 2019 and 2018 are as follows:

	2019		2018
	(In Millions)
Less than 1 year		$40.7		$31.1
1 year - 5 years	142.0		130.5
5 years - 10 years	132.4		111.0
10 years - 15 years	39.8		29.0
15 years - 20 years	49.2		37.1
20 years+	197.4		194.2
Total		$601.5		$532.9

System Energy [Member]

Securities Held

The available-for-sale securities held as of December 31, 2019 and 2018 are summarized as follows:

	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2019
Debt Securities		$386.2		$15.1		$0.3
2018
Debt Securities		$364.2		$2.9		$5.8

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

The fair value and gross unrealized losses of available-for-sale debt securities, summarized by length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2019:

	Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$56.9		$0.3
More than 12 months	0.3		—
Total		$57.2		$0.3

The fair value and gross unrealized losses of available-for-sale debt securities, summarized by length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2018:

	Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$89.7		$2.4
More than 12 months	79.8		3.4
Total		$169.5		$5.8

Fair Value Of Debt Securities By Contractual Maturities

The fair value of available-for-sale debt securities, summarized by contractual maturities, as of December 31, 2019 and 2018 are as follows:

	2019		2018
	(In Millions)
Less than 1 year		$8.5		$22.8
1 year - 5 years	154.6		188.0
5 years - 10 years	92.3		73.4
10 years - 15 years	13.4		5.2
15 years - 20 years	14.4		10.2
20 years+	103.0		64.6
Total		$386.2		$364.2