XML 101 R50.htm IDEA: XBRL DOCUMENT v3.25.0.1
Decommissioning Trust Funds (Tables)
 12 Months Ended
Dec. 31, 2024
Debt Securities, Available-for-Sale
The available-for-sale debt securities held as of December 31, 2024 and 2023 are summarized as follows:
20242023
(In Millions)
Fair value$2,047 $1,770 
Unrealized gains$7 $19 
Unrealized losses$80 $134 
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]
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 December 31, 2024 and 2023:
December 31, 2024December 31, 2023
Fair ValueGross Unrealized LossesFair ValueGross Unrealized Losses
 (In Millions)
Less than 12 months$1,102 $24 $134 $6 
More than 12 months510 56 999 128 
Total$1,612 $80 $1,133 $134 
Investments Classified by Contractual Maturity Date [Table Text Block]
The fair value of available-for-sale debt securities, summarized by contractual maturities, as of December 31, 2024 and 2023 are as follows:
 20242023
 (In Millions)
Less than 1 year$36 $82 
1 year - 5 years574 517 
5 years - 10 years629 504 
10 years - 15 years166 121 
15 years - 20 years218 179 
20 years+424 367 
Total$2,047 $1,770 
Schedule of Realized Gain (Loss)
The following table summarizes proceeds from the dispositions of available-for-sale debt securities and the related gains and losses from the sales for the years ended December 31, 2024, 2023, and 2022:
 202420232022
 (In Millions)
Proceeds from disposition of securities$1,258 $661 $889 
Realized gains$5 $1 $2 
Realized losses$89 $37 $46 
Entergy Arkansas [Member]  
Debt Securities, Available-for-Sale The available-for-sale debt securities held as of December 31, 2024 and 2023 are summarized as follows:
20242023
(In Millions)
Fair value$579.0 $496.9 
Unrealized gains$1.2 $2.4 
Unrealized losses$25.8 $53.6 
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]
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 December 31, 2024 and 2023:
December 31, 2024December 31, 2023
Fair ValueGross Unrealized LossesFair ValueGross Unrealized Losses
(In Millions)
Less than 12 months$282.8 $8.2 $22.5 $0.4 
More than 12 months195.0 17.6 403.4 53.2 
Total$477.8 $25.8 $425.9 $53.6 
Investments Classified by Contractual Maturity Date [Table Text Block]
The fair value of available-for-sale debt securities, summarized by contractual maturities, as of December 31, 2024 and 2023 are as follows:
 20242023
 (In Millions)
Less than 1 year$31.7 $45.3 
1 year - 5 years142.5 132.2 
5 years - 10 years231.0 205.7 
10 years - 15 years62.2 39.9 
15 years - 20 years62.8 49.6 
20 years+48.8 24.2 
Total$579.0 $496.9 
Schedule of Realized Gain (Loss)
The following table summarizes proceeds from the dispositions of available-for-sale debt securities and the related gains and losses from the sales for the years ended December 31, 2024, 2023, and 2022:
 202420232022
 (In Millions)
Proceeds from disposition of securities$210.6 $28.5 $42.1 
Realized gains$0.1 $0.1 $0.1 
Realized losses$35.8 $2.0 $2.6 
Entergy Louisiana [Member]  
Debt Securities, Available-for-Sale The available-for-sale debt securities held as of December 31, 2024 and 2023 are summarized as follows:
20242023
(In Millions)
Fair value$908.1 $788.1 
Unrealized gains$3.6 $11.7 
Unrealized losses$26.9 $37.4 
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]
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 December 31, 2024 and 2023:
December 31, 2024December 31, 2023
Fair ValueGross Unrealized LossesFair ValueGross Unrealized Losses
(In Millions)
Less than 12 months$543.8 $8.8 $69.8 $0.9 
More than 12 months178.4 18.1 356.1 36.5 
Total$722.2 $26.9 $425.9 $37.4 
Investments Classified by Contractual Maturity Date [Table Text Block]
The fair value of available-for-sale debt securities, summarized by contractual maturities, as of December 31, 2024 and 2023 are as follows:
 20242023
 (In Millions)
Less than 1 year$4.4 $31.4 
1 year - 5 years188.2 181.6 
5 years - 10 years259.4 170.0 
10 years - 15 years80.9 70.2 
15 years - 20 years106.1 90.2 
20 years+269.1 244.7 
Total$908.1 $788.1 
Schedule of Realized Gain (Loss)
The following table summarizes proceeds from the dispositions of available-for-sale debt securities and the related gains and losses from the sales for the years ended December 31, 2024, 2023, and 2022:
 202420232022
 (In Millions)
Proceeds from disposition of securities$547.8 $318.6 $362.2 
Realized gains$1.3 $0.5 $1.3 
Realized losses$25.8 $20.9 $23.0 
System Energy [Member]  
Debt Securities, Available-for-Sale The available-for-sale debt securities held as of December 31, 2024 and 2023 are summarized as follows:
20242023
(In Millions)
Fair value$559.8 $485.2 
Unrealized gains$1.9 $4.5 
Unrealized losses$27.6 $42.5 
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]
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 December 31, 2024 and 2023:
December 31, 2024December 31, 2023
Fair ValueGross Unrealized LossesFair ValueGross Unrealized Losses
(In Millions)
Less than 12 months$275.6 $6.8 $42.1 $4.5 
More than 12 months136.8 20.8 239.1 38.0 
Total$412.4 $27.6 $281.2 $42.5 
Investments Classified by Contractual Maturity Date [Table Text Block]
The fair value of available-for-sale debt securities, summarized by contractual maturities, as of December 31, 2024 and 2023 are as follows:
 20242023
 (In Millions)
Less than 1 year$0.2 $5.3 
1 year - 5 years243.7 203.4 
5 years - 10 years138.9 128.6 
10 years - 15 years22.7 10.7 
15 years - 20 years49.4 38.8 
20 years+104.9 98.4 
Total$559.8 $485.2 
Schedule of Realized Gain (Loss)
The following table summarizes proceeds from the dispositions of available-for-sale debt securities and the related gains and losses from the sales for the years ended December 31, 2024, 2023, and 2022:
 202420232022
 (In Millions)
Proceeds from disposition of securities$500.1 $314.3 $209.4 
Realized gains$3.1 $0.6 $0.2 
Realized losses$28.0 $14.2 $10.7