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Rate And Regulatory Matters (Tables)
 12 Months Ended
Dec. 31, 2025
Schedule of Regulatory Assets [Table Text Block]
Entergy
20252024
 (In Millions)
Asset retirement obligation - recovery dependent upon timing of decommissioning of nuclear units or shutdown of non-nuclear power plants and solar facilities (Note 9) (a)
$1,437.9 $1,358.7 
Removal costs (Note 9)
1,178.9 1,107.6 
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)
1,067.2 1,207.6 
Storm damage costs, including hurricane costs - recovered through securitization and retail rates (Note 2 - Storm Cost Recovery Filings with Retail Regulators and Note 5 - Securitization Bonds)
481.4 547.3 
Qualified pension settlement cost deferral - recovered through June 2047 (Note 11 - Qualified Pension Settlement Cost)
200.2 227.1 
Retail rate deferrals - recovered through formula rates or rate riders as rates are redetermined by retail regulators
140.5 195.1 
Retired electric and gas meters - recovered through retail rates as determined by retail regulators (Note 2 - Retail Rate Proceedings)
117.9 135.7 
Non-service pension & postretirement costs (Note 11 - Accounting for Pension and Other Postretirement Benefits)
73.0 180.0 
Advanced metering system surcharge for residential customers - recovered through December 2029
53.7 39.7 
Unamortized loss on reacquired debt - recovered over term of debt
53.6 57.9 
Production tax credits (Note 3 - Other Tax Matters - Inflation Reduction Act of 2022) (b)
47.9 — 
Deferred COVID-19 costs - recovered through retail rates as determined by retail regulators (Note 2 - Retail Rate Proceedings)
40.3 104.0 
Retired distribution plant - resiliency plan - recovered over a 33-year period
22.4 — 
Formula rate plan historical year rate adjustment (Note 2 - Retail Rate Proceedings) (c)
28.3 15.5 
Pension & postretirement benefits expense deferral - recovered through retail rates (Note 2 - Retail Rate Proceedings and Note 11 - Entergy Texas Reserve)
0.9 15.0 
Other61.9 99.7 
Entergy Total (d)
$5,006.0 $5,290.9 
Schedule of Regulatory Liabilities [Table Text Block]
Entergy
20252024
(In Millions)
Unrealized gains on nuclear decommissioning trust funds (Note 16) (a)
$2,731.9 $2,262.5 
Securitization financing savings obligation (Note 2)
345.5 371.3 
Retail rate rider over-recovery - refunded through formula rate or rate riders as rates are redetermined by retail regulators
143.3 164.9 
Credits from resolution of the 2016-2018 IRS audit (Note 3)
132.5 163.3 
Non-service pension & postretirement costs (Note 11 - Accounting for Pension and Other Postretirement Benefits)
84.7 — 
Deferred tax equity partnership earnings (Note 1)
73.6 69.9 
Vidalia purchased power agreement (Note 8)
54.5 67.4 
Customer rate credits from global stipulated settlement with the LPSC - returned to customers September 2024 through August 2026 (Note 2)
48.7 121.7 
Entergy Arkansas’s accumulated accelerated Grand Gulf amortization - will be returned to customers when approved by the APSC and the FERC
44.4 44.4 
Refund from System Energy settlement with the LPSC - returned to customers January 2025 through August 2027 (Note 2)
42.2 75.8 
Refund from System Energy settlement with the City Council - returned to customers over a 25-year period beginning September 2024 (Note 2)
41.7 42.7 
Asset retirement obligation - return to customers dependent upon timing of decommissioning (Note 9) (a)
39.3 40.9 
Refund from System Energy settlement with the City Council - return to customers to be determined (Note 2)
29.2 32.0 
Refund from System Energy settlement with the City Council - returned to customers over a 10-year period beginning September 2024 (Note 2)
18.7 22.0 
Production tax credits (Note 3 - Other Tax Matters - Inflation Reduction Act of 2022)
15.3 — 
Shorter-term financing interest earnings - offset with deferred COVID-19 costs regulatory asset in 2025 (a)
— 48.9 
Refund from System Energy settlement with the APSC - refunded through a rate rider (Note 2)
— 8.2 
Other66.3 75.2 
Entergy Total (b)
$3,911.8 $3,611.1 
Entergy Louisiana [Member]  
Schedule of Regulatory Assets [Table Text Block]
Entergy Louisiana
 20252024
 (In Millions)
Asset retirement obligation - recovery dependent upon timing of decommissioning of nuclear units or shutdown of non-nuclear power plants (Note 9) (a)
$438.0 $421.5 
Removal costs (Note 9)
348.5 323.2 
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)
215.3 271.5 
Storm damage costs, including hurricane costs - recovered through securitization and retail rates (Note 2 - Storm Cost Recovery Filings with Retail Regulators)
188.1 226.6 
Qualified pension settlement cost deferral - recovered through June 2047 (Note 11 - Qualified Pension Settlement Cost)
98.7 111.4 
Production tax credits (Note 3 - Other Tax Matters - Inflation Reduction Act of 2022) (e)
77.0 — 
Retired electric and gas meters - recovered over a 22-year period through July 2041
72.9 78.5 
Retired distribution plant - resiliency plan - recovered over a 33-year period
22.4 — 
Non-service pension & postretirement costs (Note 11 - Accounting for Pension and Other Postretirement Benefits)
21.4 96.2 
Unamortized loss on reacquired debt - recovered over term of debt
20.3 21.7 
Deferred COVID-19 costs - offset with shorter-term financing interest earnings regulatory liability in 2025 (a)
— 47.8 
Other38.1 48.5 
Entergy Louisiana Total (d)
$1,540.7 $1,646.9 
Schedule of Regulatory Liabilities [Table Text Block]
Entergy Louisiana
 20252024
 (In Millions)
Unrealized gains on nuclear decommissioning trust funds (Note 16) (a)
$961.9 $798.4 
Securitization financing savings obligation (Note 2)
345.5 371.3 
Retail rate rider over-recovery - refunded through rate riders as rates are redetermined annually
75.1 111.6 
Vidalia purchased power agreement (Note 8)
54.5 67.4 
Customer rate credits from global stipulated settlement with the LPSC - returned to customers September 2024 through August 2026 (Note 2)
48.7 121.7 
Refund from System Energy settlement with the LPSC - returned to customers January 2025 through August 2027 (Note 2)
42.2 75.8 
Production tax credits (Note 3 - Other Tax Matters - Inflation Reduction Act of 2022) (c)
39.9 — 
Asset retirement obligation - return to customers dependent upon timing of decommissioning (Note 9) (a)
39.3 40.9 
Shorter-term financing interest earnings - offset with deferred COVID-19 costs regulatory asset in 2025 (a)
— 48.9 
Hurricane Ida insurance proceeds - returned to customers August 2024 through July 2025
— 26.0 
Credits from resolution of the 2016-2018 IRS audit - returned to customers September 2024 through August 2025 (Note 3)
— 25.3 
Other23.7 6.4 
Entergy Louisiana Total (b)
$1,630.8 $1,693.7 
Schedule of Deferred Fuel Costs [Table Text Block] The table below shows the amount of current deferred fuel costs as of December 31, 2025 and 2024 that each Utility operating company expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.
 20252024
 (In Millions)
Entergy Arkansas
$27.7 ($45.2)
Entergy Louisiana (a)
$15.7 ($4.7)
Entergy Mississippi$10.8 ($126.3)
Entergy New Orleans (a)
($3.2)$3.9 
Entergy Texas($11.4)($59.3)

(a)Includes $0.7 million at Entergy Louisiana and $4.9 million at Entergy New Orleans as of December 31, 2024 of deferred fuel assets related to the respective natural gas distribution businesses classified as held for sale and included within “Current assets held for sale” on the respective consolidated balance sheets. See Note 14 to the financial statements for further discussion of the sale of the Entergy New Orleans and Entergy Louisiana natural gas distribution businesses on July 1, 2025 and the classification as held for sale as of December 31, 2024.

In addition, Entergy Louisiana and Entergy New Orleans have $168.1 million and $4.1 million, respectively, classified as long-term deferred fuel costs for fuel, purchased power, and capacity costs, which do not currently earn a return on investment and whose recovery periods are indeterminate but are expected to be recovered over a period greater than twelve months, on their consolidated balance sheets as of December 31, 2025 and 2024.
Entergy New Orleans [Member]  
Schedule of Regulatory Assets [Table Text Block]
Entergy New Orleans
 20252024
 (In Millions)
Removal costs (Note 9)
$56.8 $62.5 
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)
18.2 22.9 
Retired electric and gas meters - recovered over a 12-year period through July 2031 (c)
10.0 13.5 
Qualified pension settlement cost deferral - recovered through June 2047 (Note 11 - Qualified Pension Settlement Cost)
7.4 10.8 
Deferred COVID-19 costs - recovered over a five-year period through August 2028 (c)
5.8 10.2 
Unamortized loss on reacquired debt - recovered over term of debt
0.3 0.5 
Storm damage costs, including hurricane costs - recovered through securitization and retail rates (Note 2 - Storm Cost Recovery Filings with Retail Regulators and Note 5 - Securitization Bonds)
0.2 4.0 
Gas cross-boring costs - recovered through formula rates as rates are redetermined by retail regulators
— 11.9 
Other11.0 20.7 
Entergy New Orleans Total (d)
$109.7 $157.0 
Schedule of Regulatory Liabilities [Table Text Block]
Entergy New Orleans
20252024
 (In Millions)
Credits from resolution of the 2016-2018 IRS audit - returned to customers over a 25-year period beginning January 2025 (Note 3)
$132.5 $138.0 
Production tax credits (Note 3 - Other Tax Matters - Inflation Reduction Act of 2022) (c)
61.6 — 
Refund from System Energy settlement with the City Council - returned to customers over a 25-year period beginning September 2024 (Note 2)
41.7 42.7 
Refund from System Energy settlement with the City Council - return to customers to be determined (Note 2)
29.2 32.0 
Refund from System Energy settlement with the City Council - returned to customers over a 10-year period beginning September 2024 (Note 2)
18.7 22.0 
Non-service pension & postretirement costs (Note 11 - Accounting for Pension and Other Postretirement Benefits)
11.5 — 
Sale-leaseback and depreciation refunds - returned to customers over a 10-year period beginning September 2023 (Note 2)
4.6 5.2 
Gain on sale of natural gas business - to be returned to customers over a 3-year period beginning September 2026 (Note 14 - Dispositions)
4.1 — 
Retail rate rider over-recovery - refunded through rate riders as rates are redetermined annually
1.8 16.3 
Other7.3 4.5 
Entergy New Orleans Total (b)
$313.0 $260.7 
Schedule of Deferred Fuel Costs [Table Text Block] The table below shows the amount of current deferred fuel costs as of December 31, 2025 and 2024 that each Utility operating company expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.
 20252024
 (In Millions)
Entergy Arkansas
$27.7 ($45.2)
Entergy Louisiana (a)
$15.7 ($4.7)
Entergy Mississippi$10.8 ($126.3)
Entergy New Orleans (a)
($3.2)$3.9 
Entergy Texas($11.4)($59.3)

(a)Includes $0.7 million at Entergy Louisiana and $4.9 million at Entergy New Orleans as of December 31, 2024 of deferred fuel assets related to the respective natural gas distribution businesses classified as held for sale and included within “Current assets held for sale” on the respective consolidated balance sheets. See Note 14 to the financial statements for further discussion of the sale of the Entergy New Orleans and Entergy Louisiana natural gas distribution businesses on July 1, 2025 and the classification as held for sale as of December 31, 2024.

In addition, Entergy Louisiana and Entergy New Orleans have $168.1 million and $4.1 million, respectively, classified as long-term deferred fuel costs for fuel, purchased power, and capacity costs, which do not currently earn a return on investment and whose recovery periods are indeterminate but are expected to be recovered over a period greater than twelve months, on their consolidated balance sheets as of December 31, 2025 and 2024.
Entergy Texas [Member]  
Schedule of Regulatory Assets [Table Text Block]
Entergy Texas
 20252024
 (In Millions)
Storm damage costs, including hurricane costs - recovered through securitization and retail rates (Note 5 - Securitization Bonds)
$263.8 $286.5 
Removal costs (Note 9)
105.0 102.3 
Advanced metering system surcharge for residential customers - recovered through December 2029
53.7 39.7 
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)
43.0 57.1 
Unamortized loss on reacquired debt - recovered over term of debt
7.0 7.6 
Neches and Sabine costs - recovered over a 10-year period through October 2028
6.7 9.2 
Retired electric meters - recovered through retail rates (Note 2 - Retail Rate Proceedings)
5.8 10.9 
Pension & postretirement benefits expense deferral - recovered through retail rates (Note 2 - Retail Rate Proceedings and Note 11 - Entergy Texas Reserve)
0.9 15.0 
Non-service pension & postretirement costs (Note 11 - Accounting for Pension and Other Postretirement Benefits)
— 5.8 
Other24.9 15.6 
Entergy Texas Total$510.8 $549.7 
Schedule of Regulatory Liabilities [Table Text Block]
Entergy Texas
 20252024
 (In Millions)
Non-service pension & postretirement costs (Note 11 - Accounting for Pension and Other Postretirement Benefits)
$73.2 $— 
Production tax credits (Note 3 - Other Tax Matters - Inflation Reduction Act of 2022) (c)
45.8 — 
Retail rate rider over-recovery - return to customers to be determined
13.0 12.2 
Retail refunds - return to customers to be determined
6.2 6.2 
Other 0.8 0.3 
Entergy Texas Total$139.0 $18.7 
Schedule of Deferred Fuel Costs [Table Text Block] The table below shows the amount of current deferred fuel costs as of December 31, 2025 and 2024 that each Utility operating company expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.
 20252024
 (In Millions)
Entergy Arkansas
$27.7 ($45.2)
Entergy Louisiana (a)
$15.7 ($4.7)
Entergy Mississippi$10.8 ($126.3)
Entergy New Orleans (a)
($3.2)$3.9 
Entergy Texas($11.4)($59.3)

(a)Includes $0.7 million at Entergy Louisiana and $4.9 million at Entergy New Orleans as of December 31, 2024 of deferred fuel assets related to the respective natural gas distribution businesses classified as held for sale and included within “Current assets held for sale” on the respective consolidated balance sheets. See Note 14 to the financial statements for further discussion of the sale of the Entergy New Orleans and Entergy Louisiana natural gas distribution businesses on July 1, 2025 and the classification as held for sale as of December 31, 2024.

In addition, Entergy Louisiana and Entergy New Orleans have $168.1 million and $4.1 million, respectively, classified as long-term deferred fuel costs for fuel, purchased power, and capacity costs, which do not currently earn a return on investment and whose recovery periods are indeterminate but are expected to be recovered over a period greater than twelve months, on their consolidated balance sheets as of December 31, 2025 and 2024.
System Energy [Member]  
Schedule of Regulatory Assets [Table Text Block]
System Energy
 20252024
 (In Millions)
Asset retirement obligation - recovery dependent upon timing of decommissioning of nuclear unit (Note 9) (c)
$222.4 $224.8 
Production tax credits (Note 3 - Other Tax Matters - Inflation Reduction Act of 2022) (e)
185.7 — 
Removal costs - recovered through depreciation rates (Note 9)
100.4 96.9 
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)
87.2 96.5 
Non-service pension & postretirement costs (Note 11 - Accounting for Pension and Other Postretirement Benefits)
5.1 7.9 
Unamortized loss on reacquired debt - recovered over term of debt
0.4 0.4 
System Energy Total$601.2 $426.5 
Schedule of Regulatory Liabilities [Table Text Block]
System Energy
 20252024
 (In Millions)
Unrealized gains on nuclear decommissioning trust funds (Note 16) (a)
$852.9 $702.8 
Entergy Arkansas’s accumulated accelerated Grand Gulf amortization - will be returned to customers when approved by the APSC and the FERC
44.4 44.4 
System Energy Total$897.3 $747.2 
Entergy Mississippi [Member]  
Schedule of Regulatory Assets [Table Text Block]
Entergy Mississippi
 20252024
(In Millions)
Removal costs (Note 9)
$198.6 $184.8 
Retail rate deferrals - recovered through formula rates or rate riders as rates are redetermined annually
105.3 162.5 
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)
70.3 82.2 
Qualified pension settlement cost deferral - recovered through June 2047 (Note 11 - Qualified Pension Settlement Cost)
26.0 29.1 
Non-service pension & postretirement costs (Note 11 - Accounting for Pension and Other Postretirement Benefits)
21.2 29.9 
Asset retirement obligation - recovery dependent upon timing of shutdown of non-nuclear power plants and solar facility (Note 9) (a)
12.2 9.4 
Unamortized loss on reacquired debt - recovered over term of debt
8.2 9.1 
Other13.9 18.8 
Entergy Mississippi Total$455.7 $525.8 
Schedule of Regulatory Liabilities [Table Text Block]
Entergy Mississippi
20252024
 (In Millions)
Production tax credits (Note 3 - Other Tax Matters - Inflation Reduction Act of 2022) (c)
$72.2 $— 
Deferred tax equity partnership earnings (Note 1)
38.2 37.5 
Other postretirement benefits (Note 11 - Entergy Mississippi Other Postretirement Benefits)
18.6 7.4 
Retail rate rider over-recovery - refunded through formula rate or rate riders as rates are redetermined annually
14.2 12.2 
Other0.9 2.4 
Entergy Mississippi Total$144.1 $59.5 
Schedule of Deferred Fuel Costs [Table Text Block] The table below shows the amount of current deferred fuel costs as of December 31, 2025 and 2024 that each Utility operating company expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.
 20252024
 (In Millions)
Entergy Arkansas
$27.7 ($45.2)
Entergy Louisiana (a)
$15.7 ($4.7)
Entergy Mississippi$10.8 ($126.3)
Entergy New Orleans (a)
($3.2)$3.9 
Entergy Texas($11.4)($59.3)

(a)Includes $0.7 million at Entergy Louisiana and $4.9 million at Entergy New Orleans as of December 31, 2024 of deferred fuel assets related to the respective natural gas distribution businesses classified as held for sale and included within “Current assets held for sale” on the respective consolidated balance sheets. See Note 14 to the financial statements for further discussion of the sale of the Entergy New Orleans and Entergy Louisiana natural gas distribution businesses on July 1, 2025 and the classification as held for sale as of December 31, 2024.

In addition, Entergy Louisiana and Entergy New Orleans have $168.1 million and $4.1 million, respectively, classified as long-term deferred fuel costs for fuel, purchased power, and capacity costs, which do not currently earn a return on investment and whose recovery periods are indeterminate but are expected to be recovered over a period greater than twelve months, on their consolidated balance sheets as of December 31, 2025 and 2024.
Entergy Arkansas [Member]  
Schedule of Regulatory Assets [Table Text Block]
Entergy Arkansas
 20252024
 (In Millions)
Asset retirement obligation - recovery dependent upon timing of decommissioning of nuclear units or shutdown of non-nuclear power plants and solar facilities (Note 9) (a)
$750.5 $693.0 
Removal costs (Note 9)
369.6 337.9 
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)
333.4 391.2 
Qualified pension settlement cost deferral - recovered through June 2047 (Note 11 - Qualified Pension Settlement Cost)
68.1 75.8 
Production tax credits (Note 3 - Other Tax Matters - Inflation Reduction Act of 2022) (e)
37.1 — 
Deferred COVID-19 costs - recovered over a 10-year period through December 2033
31.2 35.1 
Storm damage costs - recovered through retail rates
29.3 29.8 
Retired electric meters - recovered over a 15-year period through March 2034
29.2 32.8 
Formula rate plan historical year rate adjustment (Note 2 - Retail Rate Proceedings) (c)
28.3 15.5 
Non-service pension & postretirement costs (Note 11 - Accounting for Pension and Other Postretirement Benefits)
24.9 42.1 
Unamortized loss on reacquired debt - recovered over term of debt
17.4 18.6 
Retail rate deferrals - recovered through rate riders as rates are redetermined annually (c)
14.6 13.6 
Other10.2 14.7 
Entergy Arkansas Total$1,743.8 $1,700.1 
Schedule of Regulatory Liabilities [Table Text Block]
Entergy Arkansas
 20252024
 (In Millions)
Unrealized gains on nuclear decommissioning trust funds (Note 16) (a)
$917.1 $761.3 
Production tax credits (Note 3 - Other Tax Matters - Inflation Reduction Act of 2022) (c)
52.1 — 
Retail rate rider over-recovery - refunded through rate riders as rates are redetermined annually
39.0 27.9 
Deferred tax equity partnership earnings (Note 1)
35.4 32.4 
Refund from System Energy settlement with the APSC - refunded through a rate rider (Note 2)
— 8.2 
Other0.5 1.4 
Entergy Arkansas Total$1,044.1 $831.2 
Schedule of Deferred Fuel Costs [Table Text Block] The table below shows the amount of current deferred fuel costs as of December 31, 2025 and 2024 that each Utility operating company expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.
 20252024
 (In Millions)
Entergy Arkansas
$27.7 ($45.2)
Entergy Louisiana (a)
$15.7 ($4.7)
Entergy Mississippi$10.8 ($126.3)
Entergy New Orleans (a)
($3.2)$3.9 
Entergy Texas($11.4)($59.3)

(a)Includes $0.7 million at Entergy Louisiana and $4.9 million at Entergy New Orleans as of December 31, 2024 of deferred fuel assets related to the respective natural gas distribution businesses classified as held for sale and included within “Current assets held for sale” on the respective consolidated balance sheets. See Note 14 to the financial statements for further discussion of the sale of the Entergy New Orleans and Entergy Louisiana natural gas distribution businesses on July 1, 2025 and the classification as held for sale as of December 31, 2024.

In addition, Entergy Louisiana and Entergy New Orleans have $168.1 million and $4.1 million, respectively, classified as long-term deferred fuel costs for fuel, purchased power, and capacity costs, which do not currently earn a return on investment and whose recovery periods are indeterminate but are expected to be recovered over a period greater than twelve months, on their consolidated balance sheets as of December 31, 2025 and 2024.