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Rate And Regulatory Matters (Tables)
12 Months Ended
Dec. 31, 2021
Details Of Other Regulatory Assets
Entergy
 20212020
 (In Millions)
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)
$2,327.7 $3,027.5 
Removal costs (Note 9)
1,488.8 893.8 
Storm damage costs, including hurricane costs - recovered through securitization and retail rates (Note 2 - Hurricane Ida and Storm Cost Recovery Filings with Retail Regulators and Note 5 - Securitization Bonds)
993.6 379.2 
Asset retirement obligation - recovery dependent upon timing of decommissioning of nuclear units or dismantlement of non-nuclear power plants (Note 9) (a)
935.5 1,018.9 
Retired electric and gas meters - recovered through retail rates as determined by retail regulators
179.4 192.1 
Deferred COVID-19 costs - recovery period to be determined (Note 2 - Retail Rate Proceedings) (b)
133.1 105.7 
Opportunity Sales - recovery will be determined after final order in proceeding (Note 2 - Entergy Arkansas Opportunity Sales Proceeding) (b)
131.8 131.8 
Qualified Pension Settlement Cost Deferral - recovered over a 10-year period through July 2031 (Note 11 - Qualified Pension Settlement Cost)
113.2 16.9 
Unamortized loss on reacquired debt - recovered over term of debt
74.7 79.2 
Retail rate deferrals - recovered through formula rates or rate riders as rates are redetermined by retail regulators
66.1 66.0 
Attorney General litigation costs - recovered over a six-year period through March 2026 (b)
20.5 25.3 
Formula rate plan historical year rate adjustment (Note 2 - Retail Rate Proceedings)
19.0 — 
New nuclear generation development costs - recovery through formula rate plan December 2014 through November 2022 (b)
6.8 14.2 
Other123.1 125.9 
Entergy Total$6,613.3 $6,076.5 
Schedule of Regulatory Liabilities
Entergy
 20212020
(In Millions)
Unrealized gains on nuclear decommissioning trust funds (Note 16) (a)
$1,993.3 $1,694.1 
Louisiana Act 55 financing savings obligation (Note 3) (b)
127.4 144.3 
Retail rate over-recovery - refunded through formula rate or rate riders as rates are redetermined annually
126.5 75.1 
Vidalia purchased power agreement (Note 8) (b)
106.2 115.7 
Grand Gulf sale-leaseback - (Note 5 - Grand Gulf Sale-Leaseback Transactions)
55.6 55.6 
Asset retirement obligation - return to customers dependent upon timing of decommissioning (Note 9) (a)
45.5 29.7 
Entergy Arkansass accumulated accelerated Grand Gulf amortization - will be returned to customers when approved by the APSC and the FERC
44.4 44.4 
Internal restructuring guaranteed tax credits19.8 26.4 
Deferred tax equity partnership earnings (Note 1)
18.1 — 
Business combination guaranteed customer benefits - returned to customers through retail rates and fuel rates December 2015 through November 2024
16.0 21.5 
Advanced metering system (AMS) surcharge - return to customers dependent upon AMS spend
7.3 20.1 
Formula rate plan historical year rate adjustment (Note 2 - Retail Rate Proceedings)
— 43.5 
Other83.7 53.5 
Entergy Total$2,643.8 $2,323.9 
Entergy Louisiana [Member]  
Details Of Other Regulatory Assets
Entergy Louisiana
 20212020
 (In Millions)
Removal costs (Note 9)
$848.2 $302.5 
Storm damage costs, including hurricane costs - recovery expected through retail rates and securitization (Note 2 - Hurricane Ida and Storm Cost Recovery Filings with Retail Regulators)
773.6 94.0 
Pension & postretirement costs (Note 11 - Qualified Pension Plans and Non-Qualified Pension Plans) (a)
592.7 799.4 
Asset Retirement Obligation - recovery dependent upon timing of decommissioning of nuclear units or dismantlement of non-nuclear power plants (Note 9) (a)
286.6 299.0 
Retired electric meters - recovered over a 22-year period through July 2041
91.7 96.4 
Deferred COVID-19 costs - recovery period to be determined (Note 2 - Retail Rate Proceedings) (b)
56.3 48.8 
Qualified Pension Settlement Cost Deferral - recovered over a 10-year period through July 2031 (Note 11 - Qualified Pension Settlement Cost)
55.0 5.4 
Unamortized loss on reacquired debt - recovered over term of debt
26.9 26.6 
New nuclear generation development costs - recovery through formula rate plan December 2014 through November 2022 (b)
6.7 14.0 
Other39.0 40.0 
Entergy Louisiana Total$2,776.7 $1,726.1 
Schedule of Regulatory Liabilities
Entergy Louisiana
 20212020
 (In Millions)
Unrealized gains on nuclear decommissioning trust funds (Note 16) (a)
$692.2 $567.7 
Louisiana Act 55 financing savings obligation (Note 3)
127.4 144.3 
Vidalia purchased power agreement (Note 8) (b)
106.2 115.7 
Asset retirement obligation - return to customers dependent upon timing of decommissioning (Note 9) (a)
45.5 29.7 
Retail rate rider over-recovery - refunded through rate riders as rates are determined annually
30.7 36.0 
Business combination guaranteed customer benefits - returned to customers through retail rates and fuel rates December 2015 through November 2024
16.0 21.5 
Derivative Instruments & Hedging Activities (Note 15)
11.4 — 
Other13.2 3.4 
Entergy Louisiana Total$1,042.6 $918.3 
The Amount Of Deferred Fuel Costs, That Entergy Expects To Recover (Or Return To Customers) Through Fuel Mechanisms, Subject To Subsequent Regulatory Review The table below shows the amount of deferred fuel costs as of December 31, 2021 and 2020 that Entergy expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.
 20212020
 (In Millions)
Entergy Arkansas (a)$177.6 $15.2 
Entergy Louisiana (b)$213.5 $170.4 
Entergy Mississippi$121.9 ($14.7)
Entergy New Orleans (b)($3.5)$6.2 
Entergy Texas$48.3 ($85.4)

(a)Includes $68.8 million in 2021 and $68.2 million in 2020 of fuel and purchased power costs whose recovery periods are indeterminate but are expected to be recovered over a period greater than twelve months.
(b)Includes $168.1 million in both years for Entergy Louisiana and $4.1 million in both years for Entergy New Orleans of 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.
Opportunity Sales Proceeding [Table Text Block] Refunds and interest in the following amounts were paid by Entergy Arkansas to the other operating companies in December 2018:
 Total refunds including interest
Payment/(Receipt)
 (In Millions)
PrincipalInterestTotal
Entergy Arkansas$68$67$135
Entergy Louisiana($30)($29)($59)
Entergy Mississippi($18)($18)($36)
Entergy New Orleans($3)($4)($7)
Entergy Texas($17)($16)($33)
Entergy New Orleans [Member]  
Details Of Other Regulatory Assets
Entergy New Orleans
 20212020
 (In Millions)
Removal costs (Note 9)
$91.7 $63.2 
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)
44.9 75.7 
Storm damage costs, including hurricane costs - recovered through securitization or retail rates (Note 2 - Storm Cost Recovery Filings with Retail Regulators and Note 5 - Entergy New Orleans Securitization Bonds - Hurricane Isaac)
31.2 55.2 
Retired meters - recovered over a 12-year period through July 2031 (b)
19.6 21.7 
Deferred COVID-19 costs - recovery period to be determined (Note 2 - Retail Rate Proceedings) (b)
17.4 14.3 
Asset retirement obligation - recovery dependent upon timing of dismantlement of non-nuclear power plants (Note 9) (a)
5.4 5.2 
Unamortized loss on reacquired debt - recovered over term of debt
1.6 1.9 
Other36.8 29.6 
Entergy New Orleans Total$248.6 $266.8 
The Amount Of Deferred Fuel Costs, That Entergy Expects To Recover (Or Return To Customers) Through Fuel Mechanisms, Subject To Subsequent Regulatory Review The table below shows the amount of deferred fuel costs as of December 31, 2021 and 2020 that Entergy expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.
 20212020
 (In Millions)
Entergy Arkansas (a)$177.6 $15.2 
Entergy Louisiana (b)$213.5 $170.4 
Entergy Mississippi$121.9 ($14.7)
Entergy New Orleans (b)($3.5)$6.2 
Entergy Texas$48.3 ($85.4)

(a)Includes $68.8 million in 2021 and $68.2 million in 2020 of fuel and purchased power costs whose recovery periods are indeterminate but are expected to be recovered over a period greater than twelve months.
(b)Includes $168.1 million in both years for Entergy Louisiana and $4.1 million in both years for Entergy New Orleans of 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.
Opportunity Sales Proceeding [Table Text Block] Refunds and interest in the following amounts were paid by Entergy Arkansas to the other operating companies in December 2018:
 Total refunds including interest
Payment/(Receipt)
 (In Millions)
PrincipalInterestTotal
Entergy Arkansas$68$67$135
Entergy Louisiana($30)($29)($59)
Entergy Mississippi($18)($18)($36)
Entergy New Orleans($3)($4)($7)
Entergy Texas($17)($16)($33)
Entergy Texas [Member]  
Details Of Other Regulatory Assets
Entergy Texas
 20212020
 (In Millions)
Storm damage costs, including hurricane costs - recovered through securitization and retail rates (Note 2 - Storm Cost Recovery Filings with Retail Regulators and Note 5 - Entergy Texas Securitization Bonds - Hurricane Rita and Entergy Texas Securitization Bonds - Hurricane Ike and Hurricane Gustav)
$143.1 $187.3 
Removal costs (Note 9)
98.1 115.3 
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)
96.0 140.1 
Retired electric meters - recovered over 13-year period through February 2032
23.7 26.0 
Neches and Sabine costs - recovered over a 10-year period through September 2028 (Note 2 - Retail Rate Proceedings)
16.4 18.8 
Pension & postretirement benefits expense deferral - recovery period to be determined (Note 11 - Entergy Texas Reserve)
14.6 3.8 
Deferred COVID-19 costs - recovery period to be determined (Note 2 - Retail Rate Proceedings) (b)
11.7 12.9 
Unamortized loss on reacquired debt - recovered over term of debt
9.8 10.5 
Other7.9 10.0 
Entergy Texas Total$421.3 $524.7 
Schedule of Regulatory Liabilities
Entergy Texas
 20212020
 (In Millions)
Retail refunds - return to customers to be determined
$22.8 $— 
Advanced metering system (AMS) surcharge - returned to customers dependent upon AMS spend
7.3 20.1 
Income tax rate change - refunded through a rate rider (Note 2 - Retail Rate Proceedings)
2.7 6.5 
Transition to competition costs - returned to customers through rate riders when rates are redetermined periodically
— 3.2 
Other 4.3 2.5 
Entergy Texas Total$37.1 $32.3 
The Amount Of Deferred Fuel Costs, That Entergy Expects To Recover (Or Return To Customers) Through Fuel Mechanisms, Subject To Subsequent Regulatory Review The table below shows the amount of deferred fuel costs as of December 31, 2021 and 2020 that Entergy expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.
 20212020
 (In Millions)
Entergy Arkansas (a)$177.6 $15.2 
Entergy Louisiana (b)$213.5 $170.4 
Entergy Mississippi$121.9 ($14.7)
Entergy New Orleans (b)($3.5)$6.2 
Entergy Texas$48.3 ($85.4)

(a)Includes $68.8 million in 2021 and $68.2 million in 2020 of fuel and purchased power costs whose recovery periods are indeterminate but are expected to be recovered over a period greater than twelve months.
(b)Includes $168.1 million in both years for Entergy Louisiana and $4.1 million in both years for Entergy New Orleans of 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.
Opportunity Sales Proceeding [Table Text Block] Refunds and interest in the following amounts were paid by Entergy Arkansas to the other operating companies in December 2018:
 Total refunds including interest
Payment/(Receipt)
 (In Millions)
PrincipalInterestTotal
Entergy Arkansas$68$67$135
Entergy Louisiana($30)($29)($59)
Entergy Mississippi($18)($18)($36)
Entergy New Orleans($3)($4)($7)
Entergy Texas($17)($16)($33)
System Energy [Member]  
Details Of Other Regulatory Assets
System Energy
 20212020
 (In Millions)
Pension & postretirement costs (Note 11 - Qualified Pension Plans and Other Postretirement Benefits) (a)
$160.3 $217.8 
Asset retirement obligation - recovery dependent upon timing of decommissioning (Note 9) (a)
144.4 226.3 
Removal costs - recovered through depreciation rates (Note 9)
89.7 92.9 
Unamortized loss on reacquired debt - recovered over term of debt
1.1 2.0 
System Energy Total$395.5 $539.0 
Schedule of Regulatory Liabilities
System Energy
 20212020
 (In Millions)
Unrealized gains on nuclear decommissioning trust funds (Note 16) (a)
$615.7 $529.0 
Grand Gulf sale-leaseback - (Note 5 - Grand Gulf Sale-Leaseback Transactions)
55.6 55.6 
Entergy Arkansass accumulated accelerated Grand Gulf amortization - will be returned to customers when approved by the APSC and the FERC
44.4 44.4 
Grand Gulf sale-leaseback accumulated deferred income taxes (a)
25.6 25.7 
Entergy Mississippis accumulated accelerated Grand Gulf amortization - amortized and credited through the Unit Power Sales Agreement
3.6 10.7 
System Energy Total$744.9 $665.4 
Entergy Mississippi [Member]  
Details Of Other Regulatory Assets
Entergy Mississippi
 20212020
 (In Millions)
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)
$175.4 $242.7 
Removal costs (Note 9)
136.8 107.3 
Retail rate deferrals - returned through formula rates or rate riders as rates are redetermined annually
48.1 44.3 
Attorney General litigation costs - recovered over a six-year period through March 2026 (b)
20.5 25.3 
Formula rate plan historical year rate adjustment (Note 2 - Retail Rate Proceedings)
19.0 — 
Deferred COVID-19 costs - recovery period to be determined (Note 2 - Retail Rate Proceedings) (b)
15.0 19.2 
Qualified Pension Settlement Cost Deferral - recovered over a 10-year period through July 2031 (Note 11 - Qualified Pension Settlement Cost)
13.8 2.0 
Unamortized loss on reacquired debt - recovered over term of debt
12.2 13.5 
Asset retirement obligation - recovery dependent upon timing of dismantlement of non-nuclear power plants (Note 9) (a)
8.4 7.9 
Other13.2 5.1 
Entergy Mississippi Total$462.4 $467.3 
Schedule of Regulatory Liabilities
Entergy Mississippi
 20212020
 (In Millions)
Retail rate rider over-recovery - refunded through rate riders as rates are redetermined annually
$34.2 $14.2 
Grand Gulf over-recovery - returned to customers through rate riders as rates are redetermined annually
15.1 1.0 
Other— 0.6 
Entergy Mississippi Total$49.3 $15.8 
The Amount Of Deferred Fuel Costs, That Entergy Expects To Recover (Or Return To Customers) Through Fuel Mechanisms, Subject To Subsequent Regulatory Review The table below shows the amount of deferred fuel costs as of December 31, 2021 and 2020 that Entergy expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.
 20212020
 (In Millions)
Entergy Arkansas (a)$177.6 $15.2 
Entergy Louisiana (b)$213.5 $170.4 
Entergy Mississippi$121.9 ($14.7)
Entergy New Orleans (b)($3.5)$6.2 
Entergy Texas$48.3 ($85.4)

(a)Includes $68.8 million in 2021 and $68.2 million in 2020 of fuel and purchased power costs whose recovery periods are indeterminate but are expected to be recovered over a period greater than twelve months.
(b)Includes $168.1 million in both years for Entergy Louisiana and $4.1 million in both years for Entergy New Orleans of 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.
Opportunity Sales Proceeding [Table Text Block] Refunds and interest in the following amounts were paid by Entergy Arkansas to the other operating companies in December 2018:
 Total refunds including interest
Payment/(Receipt)
 (In Millions)
PrincipalInterestTotal
Entergy Arkansas$68$67$135
Entergy Louisiana($30)($29)($59)
Entergy Mississippi($18)($18)($36)
Entergy New Orleans($3)($4)($7)
Entergy Texas($17)($16)($33)
Entergy Arkansas [Member]  
Details Of Other Regulatory Assets
Entergy Arkansas
 20212020
 (In Millions)
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)
$640.0 $831.5 
Asset retirement obligation - recovery dependent upon timing of decommissioning of nuclear units or dismantlement of non-nuclear power plants (Note 9) (a)
489.2 479.3 
Removal costs (Note 9)
224.3 212.6 
Opportunity sales - recovery will be determined after final order in proceeding (Note 2 - Entergy Arkansas Opportunity Sales Proceeding) (b)
131.8 131.8 
Retired electric meters - recovered over 15-year period through March 2034
43.4 46.9 
Qualified Pension Settlement Cost Deferral - recovered over a 10-year period through July 2031 (Note 11 - Qualified Pension Settlement Cost)
39.8 9.5 
Storm damage costs - recovered either through securitization or retail rates (Note 5 - Entergy Arkansas Securitization Bonds)
39.3 42.7 
Deferred COVID-19 costs - recovery period to be determined (Note 2 - Retail Rate Proceedings) (b)
32.6 10.5 
Unamortized loss on reacquired debt - recovered over term of debt
23.1 24.7 
ANO Fukushima and Flood Barrier costs - recovered through retail rates through February 2026 (Note 2 - Retail Rate Proceedings) (b)
7.3 9.1 
Retail rate deferrals - recovered through rate riders as rates are redetermined annually (b)
1.0 12.6 
Other17.9 21.2 
Entergy Arkansas Total$1,689.7 $1,832.4 
Schedule of Regulatory Liabilities
Entergy Arkansas
 20212020
 (In Millions)
Unrealized gains on nuclear decommissioning trust funds (Note 16) (a)
$685.4 $597.4 
Internal restructuring guaranteed customer credits19.8 26.4 
Retail rate rider over-recovery - refunded through rate riders as rates are redetermined annually
18.9 19.6 
Deferred tax equity partnership earnings (Note 1)
18.1 — 
Formula rate plan historical year rate adjustment (Note 2 - Retail Rate Proceedings)
— 43.5 
Other1.1 — 
Entergy Arkansas Total$743.3 $686.9 
The Amount Of Deferred Fuel Costs, That Entergy Expects To Recover (Or Return To Customers) Through Fuel Mechanisms, Subject To Subsequent Regulatory Review The table below shows the amount of deferred fuel costs as of December 31, 2021 and 2020 that Entergy expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.
 20212020
 (In Millions)
Entergy Arkansas (a)$177.6 $15.2 
Entergy Louisiana (b)$213.5 $170.4 
Entergy Mississippi$121.9 ($14.7)
Entergy New Orleans (b)($3.5)$6.2 
Entergy Texas$48.3 ($85.4)

(a)Includes $68.8 million in 2021 and $68.2 million in 2020 of fuel and purchased power costs whose recovery periods are indeterminate but are expected to be recovered over a period greater than twelve months.
(b)Includes $168.1 million in both years for Entergy Louisiana and $4.1 million in both years for Entergy New Orleans of 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.
Opportunity Sales Proceeding [Table Text Block] Refunds and interest in the following amounts were paid by Entergy Arkansas to the other operating companies in December 2018:
 Total refunds including interest
Payment/(Receipt)
 (In Millions)
PrincipalInterestTotal
Entergy Arkansas$68$67$135
Entergy Louisiana($30)($29)($59)
Entergy Mississippi($18)($18)($36)
Entergy New Orleans($3)($4)($7)
Entergy Texas($17)($16)($33)