XML 67 R29.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Risk Management And Fair Values (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2024
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] | The fair values of Entergy’s derivative instruments not designated as hedging instruments on the consolidated balance sheets as of June 30, 2024 and December 31, 2023 are shown in the table below. Certain investments, including those not designated as hedging instruments, are subject to master netting agreements and are presented in the balance sheet on a net basis in accordance with accounting guidance for derivatives and hedging.
Instrument |  | Balance Sheet Location |  | Gross Fair Value (a) |  | Offsetting Position (b) |  | Net Fair Value (c) (d)
|  |  |  | (In Millions)
2024 |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |
Financial transmission rights |  | Prepayments and other |  | $49 |  | $— |  | $49
Liabilities: |  |  |  |  |  |  |  |
Natural gas swaps and options |  | Other current liabilities |  | $2 |  | $— |  | $2
2023 |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |
Financial transmission rights |  | Prepayments and other |  | $21 |  | $— |  | $21
Liabilities: |  |  |  |  |  |  |  |
Natural gas swaps and options |  | Other current liabilities |  | $11 |  | $— |  | $11
(a)Represents the gross amounts of recognized assets/liabilities (b)Represents the netting of fair value balances with the same counterparty (c)Represents the net amounts of assets/liabilities presented on the Entergy Corporation and Subsidiaries’ Consolidated Balance Sheets (d)Excludes letters of credit in the amount of $3 million posted as of June 30, 2024 and $2 million posted as of December 31, 2023
Derivatives Not Designated as Hedging Instruments [Table Text Block] | The effects of Entergy’s derivative instruments not designated as hedging instruments on the consolidated income statements for the three months ended June 30, 2024 and 2023 are as follows:
Instrument |  | Income Statement location |  | Amount of gain (loss) recorded in the income statement
|  |  |  | (In Millions)
2024 |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale | (a) | $3
Financial transmission rights |  | Purchased power expense | (b) | $47
2023 |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale | (a) | ($1)
Financial transmission rights |  | Purchased power expense | (b) | $32
The effects of Entergy’s derivative instruments not designated as hedging instruments on the consolidated income statements for the six months ended June 30, 2024 and 2023 are as follows:
Instrument |  | Income Statement location |  | Amount of gain (loss) recorded in the income statement
|  |  |  | (In Millions)
2024 |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale | (a) | ($3)
Financial transmission rights |  | Purchased power expense | (b) | $100
2023 |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale | (a) | ($38)
Financial transmission rights |  | Purchased power expense | (b) | $48
(a)Due to regulatory treatment, the natural gas swaps and options are marked-to-market through fuel, fuel-related expenses, and gas purchased for resale and then such amounts are simultaneously reversed and recorded as an offsetting regulatory asset or liability. The gains or losses recorded as fuel expenses when the swaps and options are settled are recovered or refunded through fuel cost recovery mechanisms. (b)Due to regulatory treatment, the changes in the estimated fair value of financial transmission rights for the Utility operating companies are recorded through purchased power expense and then such amounts are simultaneously reversed and recorded as an offsetting regulatory asset or liability. The gains or losses recorded as purchased power expense when the financial transmission rights for the Utility operating companies are settled are recovered or refunded through fuel cost recovery mechanisms.
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] | The following tables set forth, by level within the fair value hierarchy, Entergy’s assets and liabilities that are accounted for at fair value on a recurring basis as of June 30, 2024 and December 31, 2023. The assessment of the significance of a particular input to a fair value measurement requires judgment and may affect placement within the fair value hierarchy levels.
2024 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Temporary cash investments |  | $1,272 |  |  | $— |  |  | $— |  |  | $1,272 |
Decommissioning trust funds (a): |  |  |  |  |  |  |  |
Equity securities |  | 54 |  |  | — |  |  | — |  |  | 54 |
Debt securities |  | 721 |  |  | 1,201 |  |  | — |  |  | 1,922 |
Common trusts (b) |  |  |  |  |  |  |  | 3,289 |
Securitization recovery trust account |  | 4 |  |  | — |  |  | — |  |  | 4 |
Storm reserve escrow accounts |  | 333 |  |  | — |  |  | — |  |  | 333 |
Financial transmission rights |  | — |  |  | — |  |  | 49 |  |  | 49 |
|  | $2,384 |  |  | $1,201 |  |  | $49 |  |  | $6,923 |
Liabilities: |  |  |  |  |  |  |  |
Gas hedge contracts |  | $2 |  |  | $— |  |  | $— |  |  | $2 |
2023 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Temporary cash investments |  | $61 |  |  | $— |  |  | $— |  |  | $61 |
Decommissioning trust funds (a): |  |  |  |  |  |  |  |
Equity securities |  | 24 |  |  | — |  |  | — |  |  | 24 |
Debt securities |  | 611 |  |  | 1,159 |  |  | — |  |  | 1,770 |
Common trusts (b) |  |  |  |  |  |  |  | 3,070 |
Securitization recovery trust account |  | 8 |  |  | — |  |  | — |  |  | 8 |
Storm reserve escrow accounts |  | 323 |  |  | — |  |  | — |  |  | 323 |
Financial transmission rights |  | — |  |  | — |  |  | 21 |  |  | 21 |
|  | $1,027 |  |  | $1,159 |  |  | $21 |  |  | $5,277 |
Liabilities: |  |  |  |  |  |  |  |
Gas hedge contracts |  | $11 |  |  | $— |  |  | $— |  |  | $11 |
(a)The decommissioning trust funds hold equity and fixed income securities. Equity securities are invested to approximate the returns of major market indices. Fixed income securities are held in various governmental and corporate securities. See Note 9 to the financial statements herein for additional information on the investment portfolios. (b)Common trust funds are not publicly quoted and are valued by the fund administrators using net asset value as a practical expedient. Accordingly, these funds are not assigned a level in the fair value table. The fund administrator of these investments allows daily trading at the net asset value and trades settle at a later date.
Schedule of Fair Value, Assets And Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation [Table Text Block] | The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the three months ended June 30, 2024 and 2023:
| 2024 |  | 2023
| (In Millions)
Balance as of April 1, | $9 |  |  | $7 |
Total gains (losses) for the period |  |  |
Included as a regulatory liability/asset | 34 |  |  | 23 |
Issuances of financial transmission rights | 53 |  |  | 42 |
Settlements | (47) |  |  | (32) |
Balance as of June 30, | $49 |  |  | $40 |
The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the six months ended June 30, 2024 and 2023:
|  |  | 2024 |  | 2023
|  |  | (In Millions)
Balance as of January 1, |  |  | $21 |  |  | $19 |
Total gains (losses) for the period |  |  |  |  |
Included as a regulatory liability/asset |  |  | 75 |  |  | 27 |
Issuances of financial transmission rights |  |  | 53 |  |  | 42 |
Settlements |  |  | (100) |  |  | (48) |
Balance as of June 30, |  |  | $49 |  |  | $40 |
Entergy Arkansas [Member] |
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] | The fair values of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ balance sheets as of June 30, 2024 and December 31, 2023 are shown in the tables below. Certain investments, including those not designated as hedging instruments, are subject to master netting agreements and are presented in the balance sheet on a net basis in accordance with accounting guidance for derivatives and hedging.
Instrument |  | Balance Sheet Location |  | Gross Fair Value (a) |  | Offsetting Position (b) |  | Net Fair Value (c) (d) |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |
Financial transmission rights |  | Prepayments and other |  | $16.1 |  | $— |  | $16.1 |  | Entergy Arkansas
Financial transmission rights |  | Prepayments and other |  | $19.9 |  | ($0.1) |  | $19.8 |  | Entergy Louisiana
Financial transmission rights |  | Prepayments and other |  | $3.6 |  | $— |  | $3.6 |  | Entergy Mississippi
Financial transmission rights |  | Prepayments and other |  | $2.6 |  | $— |  | $2.6 |  | Entergy New Orleans
Financial transmission rights |  | Prepayments and other |  | $6.6 |  | $— |  | $6.6 |  | Entergy Texas
Liabilities: |  |  |  |  |  |  |  |  |  |
Natural gas swaps |  | Other current liabilities |  | $1.5 |  | $— |  | $1.5 |  | Entergy Mississippi
2023 |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |
Financial transmission rights |  | Prepayments and other |  | $6.0 |  | $— |  | $6.0 |  | Entergy Arkansas
Financial transmission rights |  | Prepayments and other |  | $9.8 |  | $— |  | $9.8 |  | Entergy Louisiana
Financial transmission rights |  | Prepayments and other |  | $1.4 |  | $— |  | $1.4 |  | Entergy Mississippi
Financial transmission rights |  | Prepayments and other |  | $1.1 |  | $— |  | $1.1 |  | Entergy New Orleans
Financial transmission rights |  | Prepayments and other |  | $2.7 |  | ($0.3) |  | $2.4 |  | Entergy Texas
Liabilities: |  |  |  |  |  |  |  |  |  |
Natural gas swaps and options |  | Other current liabilities |  | $0.4 |  | $— |  | $0.4 |  | Entergy Louisiana
Natural gas swaps |  | Other current liabilities |  | $10.1 |  | $— |  | $10.1 |  | Entergy Mississippi
Natural gas swaps |  | Other current liabilities |  | $0.6 |  | $— |  | $0.6 |  | Entergy New Orleans
(a)Represents the gross amounts of recognized assets/liabilities (b)Represents the netting of fair value balances with the same counterparty (c)Represents the net amounts of assets/liabilities presented on the Registrant Subsidiaries’ balance sheets (d)As of June 30, 2024, letters of credit posted with MISO covered financial transmission rights exposure of $1.0 million for Entergy Arkansas, $0.7 million for Entergy Louisiana, $0.6 million for Entergy Mississippi, and $0.4 million for Entergy Texas. As of December 31, 2023, letters of credit posted with MISO covered financial transmission rights exposure of $1.2 million for Entergy Arkansas, $0.5 million for Entergy Louisiana, $0.3 million for Entergy Mississippi, and $0.1 million for Entergy Texas.
Derivatives Not Designated as Hedging Instruments [Table Text Block] | The effects of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ income statements for the three months ended June 30, 2024 and 2023 are as follows:
Instrument |  | Income Statement Location |  | Amount of gain (loss) recorded in the income statement |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($3.0) | (a) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $12.0 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $25.0 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $2.1 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $3.3 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.6 | (b) | Entergy Texas
2023 |  |  |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.8 | (a) | Entergy Louisiana
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($1.2) | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.1 | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.1 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $19.5 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $3.0 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $1.5 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $3.5 | (b) | Entergy Texas
The effects of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ income statements for the six months ended June 30, 2024 and 2023 are as follows:
Instrument |  | Income Statement Location |  | Amount of gain (loss) recorded in the income statement |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $2.3 | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.5 | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $38.9 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $41.2 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $3.1 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $4.4 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $12.1 | (b) | Entergy Texas
2023 |  |  |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($5.7) | (a) | Entergy Louisiana
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $29.8 | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($2.1) | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $8.0 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $28.3 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $4.5 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $2.4 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.2 | (b) | Entergy Texas
(a)Due to regulatory treatment, the natural gas swaps and options are marked-to-market through fuel, fuel-related expenses, and gas purchased for resale and then such amounts are simultaneously reversed and recorded as an offsetting regulatory asset or liability. The gains or losses recorded as fuel expenses when the swaps and options are settled are recovered or refunded through fuel cost recovery mechanisms. (b)Due to regulatory treatment, the changes in the estimated fair value of financial transmission rights for the Utility operating companies are recorded through purchased power expense and then such amounts are simultaneously reversed and recorded as an offsetting regulatory asset or liability. The gains or losses recorded as purchased power expense when the financial transmission rights for the Utility operating companies are settled are recovered or refunded through fuel cost recovery mechanisms.
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] | The following tables set forth, by level within the fair value hierarchy, the Registrant Subsidiaries’ assets and liabilities that are accounted for at fair value on a recurring basis as of June 30, 2024 and December 31, 2023. The assessment of the significance of a particular input to a fair value measurement requires judgment and may affect placement within the fair value hierarchy levels. Entergy Arkansas
2024 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Temporary cash investments |  | $772.2 |  |  | $— |  |  | $— |  |  | $772.2 |
Decommissioning trust funds (a): |  |  |  |  |  |  |  |
Equity securities |  | 33.1 |  |  | — |  |  | — |  |  | 33.1 |
Debt securities |  | 165.1 |  |  | 389.3 |  |  | — |  |  | 554.4 |
Common trusts (b) |  |  |  |  |  |  |  | 935.0 |
Financial transmission rights |  | — |  |  | — |  |  | 16.1 |  |  | 16.1 |
|  | $970.4 |  |  | $389.3 |  |  | $16.1 |  |  | $2,310.8 |
2023 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Temporary cash investments |  | $3.1 |  |  | $— |  |  | $— |  |  | $3.1 |
Decommissioning trust funds (a): |  |  |  |  |  |  |  |
Equity securities |  | 6.4 |  |  | — |  |  | — |  |  | 6.4 |
Debt securities |  | 129.9 |  |  | 367.0 |  |  | — |  |  | 496.9 |
Common trusts (b) |  |  |  |  |  |  |  | 910.7 |
Financial transmission rights |  | — |  |  | — |  |  | 6.0 |  |  | 6.0 |
|  | $139.4 |  |  | $367.0 |  |  | $6.0 |  |  | $1,423.1 |
Schedule of Fair Value, Assets And Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation [Table Text Block] | The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the three months ended June 30, 2024.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of April 1, | $2.8 |  |  | $4.1 |  |  | $0.6 |  |  | $0.5 |  |  | $1.2 |
Issuances of financial transmission rights | 17.6 |  |  | 21.6 |  |  | 3.9 |  |  | 2.8 |  |  | 7.3 |
Gains (losses) included as a regulatory liability/asset | 7.7 |  |  | 19.1 |  |  | 1.2 |  |  | 2.6 |  |  | 2.7 |
Settlements | (12.0) |  |  | (25.0) |  |  | (2.1) |  |  | (3.3) |  |  | (4.6) |
Balance as of June 30, | $16.1 |  |  | $19.8 |  |  | $3.6 |  |  | $2.6 |  |  | $6.6 |
The following table sets forth a reconciliation of changes in the net assets (liabilities) for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the three months ended June 30, 2023.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of April 1, | $4.0 |  |  | $2.5 |  |  | $0.2 |  |  | $0.3 |  |  | ($0.1) |
Issuances of financial transmission rights | 20.6 |  |  | 18.1 |  |  | 1.4 |  |  | 1.4 |  |  | 0.2 |
Gains (losses) included as a regulatory liability/asset | (0.9) |  |  | 15.6 |  |  | 2.6 |  |  | 1.3 |  |  | 4.6 |
Settlements | (4.1) |  |  | (19.5) |  |  | (3.0) |  |  | (1.5) |  |  | (3.5) |
Balance as of June 30, | $19.6 |  |  | $16.7 |  |  | $1.2 |  |  | $1.5 |  |  | $1.2 |
The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the six months ended June 30, 2024.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of January 1, | $6.0 |  |  | $9.8 |  |  | $1.4 |  |  | $1.1 |  |  | $2.4 |
Issuances of financial transmission rights | 17.6 |  |  | 21.6 |  |  | 3.9 |  |  | 2.8 |  |  | 7.3 |
Gains (losses) included as a regulatory liability/asset | 31.4 |  |  | 29.6 |  |  | 1.4 |  |  | 3.1 |  |  | 9.0 |
Settlements | (38.9) |  |  | (41.2) |  |  | (3.1) |  |  | (4.4) |  |  | (12.1) |
Balance as of June 30, | $16.1 |  |  | $19.8 |  |  | $3.6 |  |  | $2.6 |  |  | $6.6 |
The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the six months ended June 30, 2023.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of January 1, | $10.3 |  |  | $7.3 |  |  | $0.6 |  |  | $0.8 |  |  | $0.1 |
Issuances of financial transmission rights | 20.6 |  |  | 18.1 |  |  | 1.4 |  |  | 1.4 |  |  | 0.2 |
Gains (losses) included as a regulatory liability/asset | (3.3) |  |  | 19.6 |  |  | 3.7 |  |  | 1.7 |  |  | 5.1 |
Settlements | (8.0) |  |  | (28.3) |  |  | (4.5) |  |  | (2.4) |  |  | (4.2) |
Balance as of June 30, | $19.6 |  |  | $16.7 |  |  | $1.2 |  |  | $1.5 |  |  | $1.2 |
Entergy Louisiana [Member] |
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] | The fair values of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ balance sheets as of June 30, 2024 and December 31, 2023 are shown in the tables below. Certain investments, including those not designated as hedging instruments, are subject to master netting agreements and are presented in the balance sheet on a net basis in accordance with accounting guidance for derivatives and hedging.
Instrument |  | Balance Sheet Location |  | Gross Fair Value (a) |  | Offsetting Position (b) |  | Net Fair Value (c) (d) |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |
Financial transmission rights |  | Prepayments and other |  | $16.1 |  | $— |  | $16.1 |  | Entergy Arkansas
Financial transmission rights |  | Prepayments and other |  | $19.9 |  | ($0.1) |  | $19.8 |  | Entergy Louisiana
Financial transmission rights |  | Prepayments and other |  | $3.6 |  | $— |  | $3.6 |  | Entergy Mississippi
Financial transmission rights |  | Prepayments and other |  | $2.6 |  | $— |  | $2.6 |  | Entergy New Orleans
Financial transmission rights |  | Prepayments and other |  | $6.6 |  | $— |  | $6.6 |  | Entergy Texas
Liabilities: |  |  |  |  |  |  |  |  |  |
Natural gas swaps |  | Other current liabilities |  | $1.5 |  | $— |  | $1.5 |  | Entergy Mississippi
2023 |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |
Financial transmission rights |  | Prepayments and other |  | $6.0 |  | $— |  | $6.0 |  | Entergy Arkansas
Financial transmission rights |  | Prepayments and other |  | $9.8 |  | $— |  | $9.8 |  | Entergy Louisiana
Financial transmission rights |  | Prepayments and other |  | $1.4 |  | $— |  | $1.4 |  | Entergy Mississippi
Financial transmission rights |  | Prepayments and other |  | $1.1 |  | $— |  | $1.1 |  | Entergy New Orleans
Financial transmission rights |  | Prepayments and other |  | $2.7 |  | ($0.3) |  | $2.4 |  | Entergy Texas
Liabilities: |  |  |  |  |  |  |  |  |  |
Natural gas swaps and options |  | Other current liabilities |  | $0.4 |  | $— |  | $0.4 |  | Entergy Louisiana
Natural gas swaps |  | Other current liabilities |  | $10.1 |  | $— |  | $10.1 |  | Entergy Mississippi
Natural gas swaps |  | Other current liabilities |  | $0.6 |  | $— |  | $0.6 |  | Entergy New Orleans
(a)Represents the gross amounts of recognized assets/liabilities (b)Represents the netting of fair value balances with the same counterparty (c)Represents the net amounts of assets/liabilities presented on the Registrant Subsidiaries’ balance sheets (d)As of June 30, 2024, letters of credit posted with MISO covered financial transmission rights exposure of $1.0 million for Entergy Arkansas, $0.7 million for Entergy Louisiana, $0.6 million for Entergy Mississippi, and $0.4 million for Entergy Texas. As of December 31, 2023, letters of credit posted with MISO covered financial transmission rights exposure of $1.2 million for Entergy Arkansas, $0.5 million for Entergy Louisiana, $0.3 million for Entergy Mississippi, and $0.1 million for Entergy Texas.
Derivatives Not Designated as Hedging Instruments [Table Text Block] | The effects of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ income statements for the three months ended June 30, 2024 and 2023 are as follows:
Instrument |  | Income Statement Location |  | Amount of gain (loss) recorded in the income statement |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($3.0) | (a) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $12.0 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $25.0 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $2.1 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $3.3 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.6 | (b) | Entergy Texas
2023 |  |  |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.8 | (a) | Entergy Louisiana
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($1.2) | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.1 | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.1 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $19.5 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $3.0 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $1.5 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $3.5 | (b) | Entergy Texas
The effects of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ income statements for the six months ended June 30, 2024 and 2023 are as follows:
Instrument |  | Income Statement Location |  | Amount of gain (loss) recorded in the income statement |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $2.3 | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.5 | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $38.9 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $41.2 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $3.1 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $4.4 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $12.1 | (b) | Entergy Texas
2023 |  |  |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($5.7) | (a) | Entergy Louisiana
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $29.8 | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($2.1) | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $8.0 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $28.3 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $4.5 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $2.4 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.2 | (b) | Entergy Texas
(a)Due to regulatory treatment, the natural gas swaps and options are marked-to-market through fuel, fuel-related expenses, and gas purchased for resale and then such amounts are simultaneously reversed and recorded as an offsetting regulatory asset or liability. The gains or losses recorded as fuel expenses when the swaps and options are settled are recovered or refunded through fuel cost recovery mechanisms. (b)Due to regulatory treatment, the changes in the estimated fair value of financial transmission rights for the Utility operating companies are recorded through purchased power expense and then such amounts are simultaneously reversed and recorded as an offsetting regulatory asset or liability. The gains or losses recorded as purchased power expense when the financial transmission rights for the Utility operating companies are settled are recovered or refunded through fuel cost recovery mechanisms.
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] | Entergy Louisiana
2024 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Temporary cash investments |  | $185.3 |  |  | $— |  |  | $— |  |  | $185.3 |
Decommissioning trust funds (a): |  |  |  |  |  |  |  |
Equity securities |  | 18.6 |  |  | — |  |  | — |  |  | 18.6 |
Debt securities |  | 293.7 |  |  | 518.9 |  |  | — |  |  | 812.6 |
Common trusts (b) |  |  |  |  |  |  |  | 1,461.0 |
Storm reserve escrow account |  | 250.4 |  |  | — |  |  | — |  |  | 250.4 |
Financial transmission rights |  | — |  |  | — |  |  | 19.8 |  |  | 19.8 |
|  | $748.0 |  |  | $518.9 |  |  | $19.8 |  |  | $2,747.7 |
2023 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Temporary cash investments |  | $0.5 |  |  | $— |  |  | $— |  |  | $0.5 |
Decommissioning trust funds (a): |  |  |  |  |  |  |  |
Equity securities |  | 14.6 |  |  | — |  |  | — |  |  | 14.6 |
Debt securities |  | 271.7 |  |  | 516.4 |  |  | — |  |  | 788.1 |
Common trusts (b) |  |  |  |  |  |  |  | 1,304.7 |
Storm reserve escrow account |  | 243.8 |  |  | — |  |  | — |  |  | 243.8 |
Financial transmission rights |  | — |  |  | — |  |  | 9.8 |  |  | 9.8 |
|  | $530.6 |  |  | $516.4 |  |  | $9.8 |  |  | $2,361.5 |
Liabilities: |  |  |  |  |  |  |  |
Gas hedge contracts |  | $0.4 |  |  | $— |  |  | $— |  |  | $0.4 |
Schedule of Fair Value, Assets And Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation [Table Text Block] | The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the three months ended June 30, 2024.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of April 1, | $2.8 |  |  | $4.1 |  |  | $0.6 |  |  | $0.5 |  |  | $1.2 |
Issuances of financial transmission rights | 17.6 |  |  | 21.6 |  |  | 3.9 |  |  | 2.8 |  |  | 7.3 |
Gains (losses) included as a regulatory liability/asset | 7.7 |  |  | 19.1 |  |  | 1.2 |  |  | 2.6 |  |  | 2.7 |
Settlements | (12.0) |  |  | (25.0) |  |  | (2.1) |  |  | (3.3) |  |  | (4.6) |
Balance as of June 30, | $16.1 |  |  | $19.8 |  |  | $3.6 |  |  | $2.6 |  |  | $6.6 |
The following table sets forth a reconciliation of changes in the net assets (liabilities) for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the three months ended June 30, 2023.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of April 1, | $4.0 |  |  | $2.5 |  |  | $0.2 |  |  | $0.3 |  |  | ($0.1) |
Issuances of financial transmission rights | 20.6 |  |  | 18.1 |  |  | 1.4 |  |  | 1.4 |  |  | 0.2 |
Gains (losses) included as a regulatory liability/asset | (0.9) |  |  | 15.6 |  |  | 2.6 |  |  | 1.3 |  |  | 4.6 |
Settlements | (4.1) |  |  | (19.5) |  |  | (3.0) |  |  | (1.5) |  |  | (3.5) |
Balance as of June 30, | $19.6 |  |  | $16.7 |  |  | $1.2 |  |  | $1.5 |  |  | $1.2 |
The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the six months ended June 30, 2024.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of January 1, | $6.0 |  |  | $9.8 |  |  | $1.4 |  |  | $1.1 |  |  | $2.4 |
Issuances of financial transmission rights | 17.6 |  |  | 21.6 |  |  | 3.9 |  |  | 2.8 |  |  | 7.3 |
Gains (losses) included as a regulatory liability/asset | 31.4 |  |  | 29.6 |  |  | 1.4 |  |  | 3.1 |  |  | 9.0 |
Settlements | (38.9) |  |  | (41.2) |  |  | (3.1) |  |  | (4.4) |  |  | (12.1) |
Balance as of June 30, | $16.1 |  |  | $19.8 |  |  | $3.6 |  |  | $2.6 |  |  | $6.6 |
The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the six months ended June 30, 2023.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of January 1, | $10.3 |  |  | $7.3 |  |  | $0.6 |  |  | $0.8 |  |  | $0.1 |
Issuances of financial transmission rights | 20.6 |  |  | 18.1 |  |  | 1.4 |  |  | 1.4 |  |  | 0.2 |
Gains (losses) included as a regulatory liability/asset | (3.3) |  |  | 19.6 |  |  | 3.7 |  |  | 1.7 |  |  | 5.1 |
Settlements | (8.0) |  |  | (28.3) |  |  | (4.5) |  |  | (2.4) |  |  | (4.2) |
Balance as of June 30, | $19.6 |  |  | $16.7 |  |  | $1.2 |  |  | $1.5 |  |  | $1.2 |
Entergy Mississippi [Member] |
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] | The fair values of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ balance sheets as of June 30, 2024 and December 31, 2023 are shown in the tables below. Certain investments, including those not designated as hedging instruments, are subject to master netting agreements and are presented in the balance sheet on a net basis in accordance with accounting guidance for derivatives and hedging.
Instrument |  | Balance Sheet Location |  | Gross Fair Value (a) |  | Offsetting Position (b) |  | Net Fair Value (c) (d) |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |
Financial transmission rights |  | Prepayments and other |  | $16.1 |  | $— |  | $16.1 |  | Entergy Arkansas
Financial transmission rights |  | Prepayments and other |  | $19.9 |  | ($0.1) |  | $19.8 |  | Entergy Louisiana
Financial transmission rights |  | Prepayments and other |  | $3.6 |  | $— |  | $3.6 |  | Entergy Mississippi
Financial transmission rights |  | Prepayments and other |  | $2.6 |  | $— |  | $2.6 |  | Entergy New Orleans
Financial transmission rights |  | Prepayments and other |  | $6.6 |  | $— |  | $6.6 |  | Entergy Texas
Liabilities: |  |  |  |  |  |  |  |  |  |
Natural gas swaps |  | Other current liabilities |  | $1.5 |  | $— |  | $1.5 |  | Entergy Mississippi
2023 |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |
Financial transmission rights |  | Prepayments and other |  | $6.0 |  | $— |  | $6.0 |  | Entergy Arkansas
Financial transmission rights |  | Prepayments and other |  | $9.8 |  | $— |  | $9.8 |  | Entergy Louisiana
Financial transmission rights |  | Prepayments and other |  | $1.4 |  | $— |  | $1.4 |  | Entergy Mississippi
Financial transmission rights |  | Prepayments and other |  | $1.1 |  | $— |  | $1.1 |  | Entergy New Orleans
Financial transmission rights |  | Prepayments and other |  | $2.7 |  | ($0.3) |  | $2.4 |  | Entergy Texas
Liabilities: |  |  |  |  |  |  |  |  |  |
Natural gas swaps and options |  | Other current liabilities |  | $0.4 |  | $— |  | $0.4 |  | Entergy Louisiana
Natural gas swaps |  | Other current liabilities |  | $10.1 |  | $— |  | $10.1 |  | Entergy Mississippi
Natural gas swaps |  | Other current liabilities |  | $0.6 |  | $— |  | $0.6 |  | Entergy New Orleans
(a)Represents the gross amounts of recognized assets/liabilities (b)Represents the netting of fair value balances with the same counterparty (c)Represents the net amounts of assets/liabilities presented on the Registrant Subsidiaries’ balance sheets (d)As of June 30, 2024, letters of credit posted with MISO covered financial transmission rights exposure of $1.0 million for Entergy Arkansas, $0.7 million for Entergy Louisiana, $0.6 million for Entergy Mississippi, and $0.4 million for Entergy Texas. As of December 31, 2023, letters of credit posted with MISO covered financial transmission rights exposure of $1.2 million for Entergy Arkansas, $0.5 million for Entergy Louisiana, $0.3 million for Entergy Mississippi, and $0.1 million for Entergy Texas.
Derivatives Not Designated as Hedging Instruments [Table Text Block] | The effects of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ income statements for the three months ended June 30, 2024 and 2023 are as follows:
Instrument |  | Income Statement Location |  | Amount of gain (loss) recorded in the income statement |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($3.0) | (a) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $12.0 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $25.0 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $2.1 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $3.3 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.6 | (b) | Entergy Texas
2023 |  |  |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.8 | (a) | Entergy Louisiana
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($1.2) | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.1 | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.1 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $19.5 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $3.0 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $1.5 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $3.5 | (b) | Entergy Texas
The effects of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ income statements for the six months ended June 30, 2024 and 2023 are as follows:
Instrument |  | Income Statement Location |  | Amount of gain (loss) recorded in the income statement |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $2.3 | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.5 | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $38.9 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $41.2 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $3.1 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $4.4 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $12.1 | (b) | Entergy Texas
2023 |  |  |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($5.7) | (a) | Entergy Louisiana
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $29.8 | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($2.1) | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $8.0 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $28.3 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $4.5 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $2.4 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.2 | (b) | Entergy Texas
(a)Due to regulatory treatment, the natural gas swaps and options are marked-to-market through fuel, fuel-related expenses, and gas purchased for resale and then such amounts are simultaneously reversed and recorded as an offsetting regulatory asset or liability. The gains or losses recorded as fuel expenses when the swaps and options are settled are recovered or refunded through fuel cost recovery mechanisms. (b)Due to regulatory treatment, the changes in the estimated fair value of financial transmission rights for the Utility operating companies are recorded through purchased power expense and then such amounts are simultaneously reversed and recorded as an offsetting regulatory asset or liability. The gains or losses recorded as purchased power expense when the financial transmission rights for the Utility operating companies are settled are recovered or refunded through fuel cost recovery mechanisms.
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] | Entergy Mississippi
2024 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Temporary cash investments |  | $3.1 |  |  | $— |  |  | $— |  |  | $3.1 |
Storm reserve escrow account |  | 0.8 |  |  | — |  |  | — |  |  | 0.8 |
Financial transmission rights |  | — |  |  | — |  |  | 3.6 |  |  | 3.6 |
|  | $3.9 |  |  | $— |  |  | $3.6 |  |  | $7.5 |
Liabilities: |  |  |  |  |  |  |  |
Gas hedge contracts |  | $1.5 |  |  | $— |  |  | $— |  |  | $1.5 |
2023 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Temporary cash investments |  | $6.6 |  |  | $— |  |  | $— |  |  | $6.6 |
Storm reserve escrow account |  | 0.7 |  |  | — |  |  | — |  |  | 0.7 |
Financial transmission rights |  | — |  |  | — |  |  | 1.4 |  |  | 1.4 |
|  | $7.3 |  |  | $— |  |  | $1.4 |  |  | $8.7 |
Liabilities: |  |  |  |  |  |  |  |
Gas hedge contracts |  | $10.1 |  |  | $— |  |  | $— |  |  | $10.1 |
Schedule of Fair Value, Assets And Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation [Table Text Block] | The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the three months ended June 30, 2024.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of April 1, | $2.8 |  |  | $4.1 |  |  | $0.6 |  |  | $0.5 |  |  | $1.2 |
Issuances of financial transmission rights | 17.6 |  |  | 21.6 |  |  | 3.9 |  |  | 2.8 |  |  | 7.3 |
Gains (losses) included as a regulatory liability/asset | 7.7 |  |  | 19.1 |  |  | 1.2 |  |  | 2.6 |  |  | 2.7 |
Settlements | (12.0) |  |  | (25.0) |  |  | (2.1) |  |  | (3.3) |  |  | (4.6) |
Balance as of June 30, | $16.1 |  |  | $19.8 |  |  | $3.6 |  |  | $2.6 |  |  | $6.6 |
The following table sets forth a reconciliation of changes in the net assets (liabilities) for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the three months ended June 30, 2023.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of April 1, | $4.0 |  |  | $2.5 |  |  | $0.2 |  |  | $0.3 |  |  | ($0.1) |
Issuances of financial transmission rights | 20.6 |  |  | 18.1 |  |  | 1.4 |  |  | 1.4 |  |  | 0.2 |
Gains (losses) included as a regulatory liability/asset | (0.9) |  |  | 15.6 |  |  | 2.6 |  |  | 1.3 |  |  | 4.6 |
Settlements | (4.1) |  |  | (19.5) |  |  | (3.0) |  |  | (1.5) |  |  | (3.5) |
Balance as of June 30, | $19.6 |  |  | $16.7 |  |  | $1.2 |  |  | $1.5 |  |  | $1.2 |
The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the six months ended June 30, 2024.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of January 1, | $6.0 |  |  | $9.8 |  |  | $1.4 |  |  | $1.1 |  |  | $2.4 |
Issuances of financial transmission rights | 17.6 |  |  | 21.6 |  |  | 3.9 |  |  | 2.8 |  |  | 7.3 |
Gains (losses) included as a regulatory liability/asset | 31.4 |  |  | 29.6 |  |  | 1.4 |  |  | 3.1 |  |  | 9.0 |
Settlements | (38.9) |  |  | (41.2) |  |  | (3.1) |  |  | (4.4) |  |  | (12.1) |
Balance as of June 30, | $16.1 |  |  | $19.8 |  |  | $3.6 |  |  | $2.6 |  |  | $6.6 |
The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the six months ended June 30, 2023.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of January 1, | $10.3 |  |  | $7.3 |  |  | $0.6 |  |  | $0.8 |  |  | $0.1 |
Issuances of financial transmission rights | 20.6 |  |  | 18.1 |  |  | 1.4 |  |  | 1.4 |  |  | 0.2 |
Gains (losses) included as a regulatory liability/asset | (3.3) |  |  | 19.6 |  |  | 3.7 |  |  | 1.7 |  |  | 5.1 |
Settlements | (8.0) |  |  | (28.3) |  |  | (4.5) |  |  | (2.4) |  |  | (4.2) |
Balance as of June 30, | $19.6 |  |  | $16.7 |  |  | $1.2 |  |  | $1.5 |  |  | $1.2 |
Entergy New Orleans [Member] |
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] | The fair values of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ balance sheets as of June 30, 2024 and December 31, 2023 are shown in the tables below. Certain investments, including those not designated as hedging instruments, are subject to master netting agreements and are presented in the balance sheet on a net basis in accordance with accounting guidance for derivatives and hedging.
Instrument |  | Balance Sheet Location |  | Gross Fair Value (a) |  | Offsetting Position (b) |  | Net Fair Value (c) (d) |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |
Financial transmission rights |  | Prepayments and other |  | $16.1 |  | $— |  | $16.1 |  | Entergy Arkansas
Financial transmission rights |  | Prepayments and other |  | $19.9 |  | ($0.1) |  | $19.8 |  | Entergy Louisiana
Financial transmission rights |  | Prepayments and other |  | $3.6 |  | $— |  | $3.6 |  | Entergy Mississippi
Financial transmission rights |  | Prepayments and other |  | $2.6 |  | $— |  | $2.6 |  | Entergy New Orleans
Financial transmission rights |  | Prepayments and other |  | $6.6 |  | $— |  | $6.6 |  | Entergy Texas
Liabilities: |  |  |  |  |  |  |  |  |  |
Natural gas swaps |  | Other current liabilities |  | $1.5 |  | $— |  | $1.5 |  | Entergy Mississippi
2023 |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |
Financial transmission rights |  | Prepayments and other |  | $6.0 |  | $— |  | $6.0 |  | Entergy Arkansas
Financial transmission rights |  | Prepayments and other |  | $9.8 |  | $— |  | $9.8 |  | Entergy Louisiana
Financial transmission rights |  | Prepayments and other |  | $1.4 |  | $— |  | $1.4 |  | Entergy Mississippi
Financial transmission rights |  | Prepayments and other |  | $1.1 |  | $— |  | $1.1 |  | Entergy New Orleans
Financial transmission rights |  | Prepayments and other |  | $2.7 |  | ($0.3) |  | $2.4 |  | Entergy Texas
Liabilities: |  |  |  |  |  |  |  |  |  |
Natural gas swaps and options |  | Other current liabilities |  | $0.4 |  | $— |  | $0.4 |  | Entergy Louisiana
Natural gas swaps |  | Other current liabilities |  | $10.1 |  | $— |  | $10.1 |  | Entergy Mississippi
Natural gas swaps |  | Other current liabilities |  | $0.6 |  | $— |  | $0.6 |  | Entergy New Orleans
(a)Represents the gross amounts of recognized assets/liabilities (b)Represents the netting of fair value balances with the same counterparty (c)Represents the net amounts of assets/liabilities presented on the Registrant Subsidiaries’ balance sheets (d)As of June 30, 2024, letters of credit posted with MISO covered financial transmission rights exposure of $1.0 million for Entergy Arkansas, $0.7 million for Entergy Louisiana, $0.6 million for Entergy Mississippi, and $0.4 million for Entergy Texas. As of December 31, 2023, letters of credit posted with MISO covered financial transmission rights exposure of $1.2 million for Entergy Arkansas, $0.5 million for Entergy Louisiana, $0.3 million for Entergy Mississippi, and $0.1 million for Entergy Texas.
Derivatives Not Designated as Hedging Instruments [Table Text Block] | The effects of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ income statements for the three months ended June 30, 2024 and 2023 are as follows:
Instrument |  | Income Statement Location |  | Amount of gain (loss) recorded in the income statement |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($3.0) | (a) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $12.0 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $25.0 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $2.1 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $3.3 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.6 | (b) | Entergy Texas
2023 |  |  |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.8 | (a) | Entergy Louisiana
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($1.2) | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.1 | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.1 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $19.5 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $3.0 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $1.5 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $3.5 | (b) | Entergy Texas
The effects of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ income statements for the six months ended June 30, 2024 and 2023 are as follows:
Instrument |  | Income Statement Location |  | Amount of gain (loss) recorded in the income statement |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $2.3 | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.5 | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $38.9 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $41.2 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $3.1 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $4.4 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $12.1 | (b) | Entergy Texas
2023 |  |  |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($5.7) | (a) | Entergy Louisiana
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $29.8 | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($2.1) | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $8.0 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $28.3 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $4.5 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $2.4 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.2 | (b) | Entergy Texas
(a)Due to regulatory treatment, the natural gas swaps and options are marked-to-market through fuel, fuel-related expenses, and gas purchased for resale and then such amounts are simultaneously reversed and recorded as an offsetting regulatory asset or liability. The gains or losses recorded as fuel expenses when the swaps and options are settled are recovered or refunded through fuel cost recovery mechanisms. (b)Due to regulatory treatment, the changes in the estimated fair value of financial transmission rights for the Utility operating companies are recorded through purchased power expense and then such amounts are simultaneously reversed and recorded as an offsetting regulatory asset or liability. The gains or losses recorded as purchased power expense when the financial transmission rights for the Utility operating companies are settled are recovered or refunded through fuel cost recovery mechanisms.
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] | Entergy New Orleans
2024 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Temporary cash investments |  | $6.5 |  |  | $— |  |  | $— |  |  | $6.5 |
Securitization recovery trust account |  | 1.3 |  |  | — |  |  | — |  |  | 1.3 |
Storm reserve escrow account |  | 81.7 |  |  | — |  |  | — |  |  | 81.7 |
Financial transmission rights |  | — |  |  | — |  |  | 2.6 |  |  | 2.6 |
|  | $89.5 |  |  | $— |  |  | $2.6 |  |  | $92.1 |
2023 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Securitization recovery trust account |  | $2.4 |  |  | $— |  |  | $— |  |  | $2.4 |
Storm reserve escrow account |  | 78.7 |  |  | — |  |  | — |  |  | 78.7 |
Financial transmission rights |  | — |  |  | — |  |  | 1.1 |  |  | 1.1 |
|  | $81.1 |  |  | $— |  |  | $1.1 |  |  | $82.2 |
Liabilities: |  |  |  |  |  |  |  |
Gas hedge contracts |  | $0.6 |  |  | $— |  |  | $— |  |  | $0.6 |
Schedule of Fair Value, Assets And Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation [Table Text Block] | The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the three months ended June 30, 2024.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of April 1, | $2.8 |  |  | $4.1 |  |  | $0.6 |  |  | $0.5 |  |  | $1.2 |
Issuances of financial transmission rights | 17.6 |  |  | 21.6 |  |  | 3.9 |  |  | 2.8 |  |  | 7.3 |
Gains (losses) included as a regulatory liability/asset | 7.7 |  |  | 19.1 |  |  | 1.2 |  |  | 2.6 |  |  | 2.7 |
Settlements | (12.0) |  |  | (25.0) |  |  | (2.1) |  |  | (3.3) |  |  | (4.6) |
Balance as of June 30, | $16.1 |  |  | $19.8 |  |  | $3.6 |  |  | $2.6 |  |  | $6.6 |
The following table sets forth a reconciliation of changes in the net assets (liabilities) for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the three months ended June 30, 2023.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of April 1, | $4.0 |  |  | $2.5 |  |  | $0.2 |  |  | $0.3 |  |  | ($0.1) |
Issuances of financial transmission rights | 20.6 |  |  | 18.1 |  |  | 1.4 |  |  | 1.4 |  |  | 0.2 |
Gains (losses) included as a regulatory liability/asset | (0.9) |  |  | 15.6 |  |  | 2.6 |  |  | 1.3 |  |  | 4.6 |
Settlements | (4.1) |  |  | (19.5) |  |  | (3.0) |  |  | (1.5) |  |  | (3.5) |
Balance as of June 30, | $19.6 |  |  | $16.7 |  |  | $1.2 |  |  | $1.5 |  |  | $1.2 |
The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the six months ended June 30, 2024.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of January 1, | $6.0 |  |  | $9.8 |  |  | $1.4 |  |  | $1.1 |  |  | $2.4 |
Issuances of financial transmission rights | 17.6 |  |  | 21.6 |  |  | 3.9 |  |  | 2.8 |  |  | 7.3 |
Gains (losses) included as a regulatory liability/asset | 31.4 |  |  | 29.6 |  |  | 1.4 |  |  | 3.1 |  |  | 9.0 |
Settlements | (38.9) |  |  | (41.2) |  |  | (3.1) |  |  | (4.4) |  |  | (12.1) |
Balance as of June 30, | $16.1 |  |  | $19.8 |  |  | $3.6 |  |  | $2.6 |  |  | $6.6 |
The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the six months ended June 30, 2023.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of January 1, | $10.3 |  |  | $7.3 |  |  | $0.6 |  |  | $0.8 |  |  | $0.1 |
Issuances of financial transmission rights | 20.6 |  |  | 18.1 |  |  | 1.4 |  |  | 1.4 |  |  | 0.2 |
Gains (losses) included as a regulatory liability/asset | (3.3) |  |  | 19.6 |  |  | 3.7 |  |  | 1.7 |  |  | 5.1 |
Settlements | (8.0) |  |  | (28.3) |  |  | (4.5) |  |  | (2.4) |  |  | (4.2) |
Balance as of June 30, | $19.6 |  |  | $16.7 |  |  | $1.2 |  |  | $1.5 |  |  | $1.2 |
Entergy Texas [Member] |
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] | The fair values of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ balance sheets as of June 30, 2024 and December 31, 2023 are shown in the tables below. Certain investments, including those not designated as hedging instruments, are subject to master netting agreements and are presented in the balance sheet on a net basis in accordance with accounting guidance for derivatives and hedging.
Instrument |  | Balance Sheet Location |  | Gross Fair Value (a) |  | Offsetting Position (b) |  | Net Fair Value (c) (d) |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |
Financial transmission rights |  | Prepayments and other |  | $16.1 |  | $— |  | $16.1 |  | Entergy Arkansas
Financial transmission rights |  | Prepayments and other |  | $19.9 |  | ($0.1) |  | $19.8 |  | Entergy Louisiana
Financial transmission rights |  | Prepayments and other |  | $3.6 |  | $— |  | $3.6 |  | Entergy Mississippi
Financial transmission rights |  | Prepayments and other |  | $2.6 |  | $— |  | $2.6 |  | Entergy New Orleans
Financial transmission rights |  | Prepayments and other |  | $6.6 |  | $— |  | $6.6 |  | Entergy Texas
Liabilities: |  |  |  |  |  |  |  |  |  |
Natural gas swaps |  | Other current liabilities |  | $1.5 |  | $— |  | $1.5 |  | Entergy Mississippi
2023 |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |
Financial transmission rights |  | Prepayments and other |  | $6.0 |  | $— |  | $6.0 |  | Entergy Arkansas
Financial transmission rights |  | Prepayments and other |  | $9.8 |  | $— |  | $9.8 |  | Entergy Louisiana
Financial transmission rights |  | Prepayments and other |  | $1.4 |  | $— |  | $1.4 |  | Entergy Mississippi
Financial transmission rights |  | Prepayments and other |  | $1.1 |  | $— |  | $1.1 |  | Entergy New Orleans
Financial transmission rights |  | Prepayments and other |  | $2.7 |  | ($0.3) |  | $2.4 |  | Entergy Texas
Liabilities: |  |  |  |  |  |  |  |  |  |
Natural gas swaps and options |  | Other current liabilities |  | $0.4 |  | $— |  | $0.4 |  | Entergy Louisiana
Natural gas swaps |  | Other current liabilities |  | $10.1 |  | $— |  | $10.1 |  | Entergy Mississippi
Natural gas swaps |  | Other current liabilities |  | $0.6 |  | $— |  | $0.6 |  | Entergy New Orleans
(a)Represents the gross amounts of recognized assets/liabilities (b)Represents the netting of fair value balances with the same counterparty (c)Represents the net amounts of assets/liabilities presented on the Registrant Subsidiaries’ balance sheets (d)As of June 30, 2024, letters of credit posted with MISO covered financial transmission rights exposure of $1.0 million for Entergy Arkansas, $0.7 million for Entergy Louisiana, $0.6 million for Entergy Mississippi, and $0.4 million for Entergy Texas. As of December 31, 2023, letters of credit posted with MISO covered financial transmission rights exposure of $1.2 million for Entergy Arkansas, $0.5 million for Entergy Louisiana, $0.3 million for Entergy Mississippi, and $0.1 million for Entergy Texas.
Derivatives Not Designated as Hedging Instruments [Table Text Block] | The effects of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ income statements for the three months ended June 30, 2024 and 2023 are as follows:
Instrument |  | Income Statement Location |  | Amount of gain (loss) recorded in the income statement |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($3.0) | (a) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $12.0 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $25.0 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $2.1 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $3.3 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.6 | (b) | Entergy Texas
2023 |  |  |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.8 | (a) | Entergy Louisiana
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($1.2) | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.1 | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.1 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $19.5 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $3.0 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $1.5 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $3.5 | (b) | Entergy Texas
The effects of derivative instruments not designated as hedging instruments on the Registrant Subsidiaries’ income statements for the six months ended June 30, 2024 and 2023 are as follows:
Instrument |  | Income Statement Location |  | Amount of gain (loss) recorded in the income statement |  | Registrant
|  |  |  | (In Millions) |  |
2024 |  |  |  |  |  |
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $2.3 | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $0.5 | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $38.9 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $41.2 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $3.1 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $4.4 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $12.1 | (b) | Entergy Texas
2023 |  |  |  |  |  |
Natural gas swaps and options |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($5.7) | (a) | Entergy Louisiana
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | $29.8 | (a) | Entergy Mississippi
Natural gas swaps |  | Fuel, fuel-related expenses, and gas purchased for resale |  | ($2.1) | (a) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $8.0 | (b) | Entergy Arkansas
Financial transmission rights |  | Purchased power expense |  | $28.3 | (b) | Entergy Louisiana
Financial transmission rights |  | Purchased power expense |  | $4.5 | (b) | Entergy Mississippi
Financial transmission rights |  | Purchased power expense |  | $2.4 | (b) | Entergy New Orleans
Financial transmission rights |  | Purchased power expense |  | $4.2 | (b) | Entergy Texas
(a)Due to regulatory treatment, the natural gas swaps and options are marked-to-market through fuel, fuel-related expenses, and gas purchased for resale and then such amounts are simultaneously reversed and recorded as an offsetting regulatory asset or liability. The gains or losses recorded as fuel expenses when the swaps and options are settled are recovered or refunded through fuel cost recovery mechanisms. (b)Due to regulatory treatment, the changes in the estimated fair value of financial transmission rights for the Utility operating companies are recorded through purchased power expense and then such amounts are simultaneously reversed and recorded as an offsetting regulatory asset or liability. The gains or losses recorded as purchased power expense when the financial transmission rights for the Utility operating companies are settled are recovered or refunded through fuel cost recovery mechanisms.
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] | Entergy Texas
2024 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Temporary cash investments |  | $124.9 |  |  | $— |  |  | $— |  |  | $124.9 |
Securitization recovery trust account |  | 2.3 |  |  | — |  |  | — |  |  | 2.3 |
Financial transmission rights |  | — |  |  | — |  |  | 6.6 |  |  | 6.6 |
|  | $127.2 |  |  | $— |  |  | $6.6 |  |  | $133.8 |
2023 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Temporary cash investments |  | $20.5 |  |  | $— |  |  | $— |  |  | $20.5 |
Securitization recovery trust account |  | 5.2 |  |  | — |  |  | — |  |  | 5.2 |
Financial transmission rights |  | — |  |  | — |  |  | 2.4 |  |  | 2.4 |
|  | $25.7 |  |  | $— |  |  | $2.4 |  |  | $28.1 |
Schedule of Fair Value, Assets And Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation [Table Text Block] | The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the three months ended June 30, 2024.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of April 1, | $2.8 |  |  | $4.1 |  |  | $0.6 |  |  | $0.5 |  |  | $1.2 |
Issuances of financial transmission rights | 17.6 |  |  | 21.6 |  |  | 3.9 |  |  | 2.8 |  |  | 7.3 |
Gains (losses) included as a regulatory liability/asset | 7.7 |  |  | 19.1 |  |  | 1.2 |  |  | 2.6 |  |  | 2.7 |
Settlements | (12.0) |  |  | (25.0) |  |  | (2.1) |  |  | (3.3) |  |  | (4.6) |
Balance as of June 30, | $16.1 |  |  | $19.8 |  |  | $3.6 |  |  | $2.6 |  |  | $6.6 |
The following table sets forth a reconciliation of changes in the net assets (liabilities) for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the three months ended June 30, 2023.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of April 1, | $4.0 |  |  | $2.5 |  |  | $0.2 |  |  | $0.3 |  |  | ($0.1) |
Issuances of financial transmission rights | 20.6 |  |  | 18.1 |  |  | 1.4 |  |  | 1.4 |  |  | 0.2 |
Gains (losses) included as a regulatory liability/asset | (0.9) |  |  | 15.6 |  |  | 2.6 |  |  | 1.3 |  |  | 4.6 |
Settlements | (4.1) |  |  | (19.5) |  |  | (3.0) |  |  | (1.5) |  |  | (3.5) |
Balance as of June 30, | $19.6 |  |  | $16.7 |  |  | $1.2 |  |  | $1.5 |  |  | $1.2 |
The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the six months ended June 30, 2024.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of January 1, | $6.0 |  |  | $9.8 |  |  | $1.4 |  |  | $1.1 |  |  | $2.4 |
Issuances of financial transmission rights | 17.6 |  |  | 21.6 |  |  | 3.9 |  |  | 2.8 |  |  | 7.3 |
Gains (losses) included as a regulatory liability/asset | 31.4 |  |  | 29.6 |  |  | 1.4 |  |  | 3.1 |  |  | 9.0 |
Settlements | (38.9) |  |  | (41.2) |  |  | (3.1) |  |  | (4.4) |  |  | (12.1) |
Balance as of June 30, | $16.1 |  |  | $19.8 |  |  | $3.6 |  |  | $2.6 |  |  | $6.6 |
The following table sets forth a reconciliation of changes in the net assets for the fair value of financial transmission rights classified as Level 3 in the fair value hierarchy for the six months ended June 30, 2023.
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Millions)
Balance as of January 1, | $10.3 |  |  | $7.3 |  |  | $0.6 |  |  | $0.8 |  |  | $0.1 |
Issuances of financial transmission rights | 20.6 |  |  | 18.1 |  |  | 1.4 |  |  | 1.4 |  |  | 0.2 |
Gains (losses) included as a regulatory liability/asset | (3.3) |  |  | 19.6 |  |  | 3.7 |  |  | 1.7 |  |  | 5.1 |
Settlements | (8.0) |  |  | (28.3) |  |  | (4.5) |  |  | (2.4) |  |  | (4.2) |
Balance as of June 30, | $19.6 |  |  | $16.7 |  |  | $1.2 |  |  | $1.5 |  |  | $1.2 |
System Energy [Member] |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] | System Energy
2024 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Temporary cash investments |  | $30.8 |  |  | $— |  |  | $— |  |  | $30.8 |
Decommissioning trust funds (a): |  |  |  |  |  |  |  |
Equity securities |  | 2.0 |  |  | — |  |  | — |  |  | 2.0 |
Debt securities |  | 262.3 |  |  | 292.3 |  |  | — |  |  | 554.6 |
Common trusts (b) |  |  |  |  |  |  |  | 893.7 |
|  | $295.1 |  |  | $292.3 |  |  | $— |  |  | $1,481.1 |
2023 |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (In Millions)
Assets: |  |  |  |  |  |  |  |
Decommissioning trust funds (a): |  |  |  |  |  |  |  |
Equity securities |  | $2.7 |  |  | $— |  |  | $— |  |  | $2.7 |
Debt securities |  | 209.5 |  |  | 275.7 |  |  | — |  |  | 485.2 |
Common trusts (b) |  |  |  |  |  |  |  | 854.4 |
|  | $212.2 |  |  | $275.7 |  |  | $— |  |  | $1,342.3 |

X
- Definition Schedule of Fair Value, Assets And Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation + References No definition available. + Details
Name: | etr_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTableTextBlock
Namespace Prefix: | etr_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of derivative instruments (including nonderivative instruments that are designated and qualify as hedging instruments) of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4A + Details
Name: | us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of derivative instrument not designated or qualifying as hedging instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4C Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4CC + Details
Name: | us-gaap_ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=etr_EntergyArkansasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=etr_EntergyLouisianaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=etr_EntergyMississippiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=etr_EntergyNewOrleansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=etr_EntergyTexasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=etr_SystemEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |