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Decommissioning Trust Funds (Tables)
 6 Months Ended
Jun. 30, 2023
Securities Held
The available-for-sale securities held as of June 30, 2023 and December 31, 2022 are summarized as follows:
Fair
Value		Total
Unrealized
Gains		Total
Unrealized
Losses
(In Millions)
2023
Debt Securities$1,707 $5 $172 
2022
Debt Securities$1,655 $4 $201 
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 had been in a continuous loss position, were as follows as of June 30, 2023 and December 31, 2022:
June 30, 2023December 31, 2022
Fair
Value		Gross
Unrealized
Losses		Fair
Value		Gross
Unrealized
Losses
(In Millions)
Less than 12 months$583 $21 $840 $63 
More than 12 months922 151 666 138 
Total$1,505 $172 $1,506 $201 
Fair Value Of Debt Securities By Contractual Maturities
The fair value of available-for-sale debt securities, summarized by contractual maturities, as of June 30, 2023 and December 31, 2022 were as follows:
20232022
(In Millions)
Less than 1 year$106 $62 
1 year - 5 years490 520 
5 years - 10 years481 461 
10 years - 15 years116 117 
15 years - 20 years156 161 
20 years+358 334 
Total$1,707 $1,655 
Entergy Arkansas [Member]  
Securities Held The available-for-sale securities held as of June 30, 2023 and December 31, 2022 are summarized as follows:
Fair
Value		Total
Unrealized
Gains		Total
Unrealized
Losses
(In Millions)
2023
Debt Securities$484.8 $0.4 $62.4 
2022
Debt Securities$470.7 $0.2 $69.3 
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 had been in a continuous loss position, were as follows as of June 30, 2023 and December 31, 2022:
June 30, 2023December 31, 2022
Fair
Value		Gross
Unrealized
Losses		Fair
Value		Gross
Unrealized
Losses
(In Millions)
Less than 12 months$75.0 $2.2 $197.6 $18.8 
More than 12 months379.7 60.2 260.1 50.5 
Total$454.7 $62.4 $457.7 $69.3 
Fair Value Of Debt Securities By Contractual Maturities
The fair value of available-for-sale debt securities, summarized by contractual maturities, as of June 30, 2023 and December 31, 2022 were as follows:
 20232022
 (In Millions)
Less than 1 year$38.9 $21.2 
1 year - 5 years146.7 159.7 
5 years - 10 years194.7 191.7 
10 years - 15 years42.1 38.0 
15 years - 20 years42.1 42.6 
20 years+20.3 17.5 
Total$484.8 $470.7 
Entergy Louisiana [Member]  
Securities Held The available-for-sale securities held as of June 30, 2023 and December 31, 2022 are summarized as follows:
Fair
Value		Total
Unrealized
Gains		Total
Unrealized
Losses
(In Millions)
2023
Debt Securities$753.4 $3.4 $54.1 
2022
Debt Securities$725.1 $3.5 $67.5 
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 had been in a continuous loss position, were as follows as of June 30, 2023 and December 31, 2022:
June 30, 2023December 31, 2022
Fair
Value		Gross
Unrealized
Losses		Fair
Value		Gross
Unrealized
Losses
(In Millions)
Less than 12 months$312.5 $9.5 $409.9 $24.6 
More than 12 months302.5 44.6 207.5 42.9 
Total$615.0 $54.1 $617.4 $67.5 
Fair Value Of Debt Securities By Contractual Maturities
The fair value of available-for-sale debt securities, summarized by contractual maturities, as of June 30, 2023 and December 31, 2022 were as follows:
20232022
(In Millions)
Less than 1 year$45.6 $33.6 
1 year - 5 years153.3 159.1 
5 years - 10 years170.0 161.7 
10 years - 15 years68.9 67.1 
15 years - 20 years77.2 83.3 
20 years+238.4 220.3 
Total$753.4 $725.1 
System Energy [Member]  
Securities Held The available-for-sale securities held as of June 30, 2023 and December 31, 2022 are summarized as follows:
Fair
Value		Total
Unrealized
Gains		Total
Unrealized
Losses
(In Millions)
2023
Debt Securities$469.1 $0.8 $55.1 
2022
Debt Securities$459.7 $0.7 $63.7 
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 had been in a continuous loss position, were as follows as of June 30, 2023 and December 31, 2022:
June 30, 2023December 31, 2022
Fair
Value		Gross
Unrealized
Losses		Fair
Value		Gross
Unrealized
Losses
(In Millions)
Less than 12 months$195.8 $9.5 $231.9 $19.2 
More than 12 months239.4 45.6 198.0 44.5 
Total$435.2 $55.1 $429.9 $63.7 
Fair Value Of Debt Securities By Contractual Maturities
The fair value of available-for-sale debt securities, summarized by contractual maturities, as of June 30, 2023 and December 31, 2022 were as follows:
20232022
(In Millions)
Less than 1 year$21.0 $6.8 
1 year - 5 years190.1 201.7 
5 years - 10 years115.8 107.1 
10 years - 15 years4.8 11.7 
15 years - 20 years36.3 35.0 
20 years+101.1 97.4 
Total$469.1 $459.7