Rate And Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2023

Schedule of Regulatory Assets [Table Text Block]

Entergy

	2023	2022
	(In Millions)
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)	$1,655.5	$1,968.5
Asset retirement obligation - recovery dependent upon timing of decommissioning of nuclear units or shutdown of non-nuclear power plants (Note 9) (a)	1,285.0	1,103.2
Removal costs (Note 9)	1,010.7	1,058.9
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)	536.9	841.3
Qualified Pension Settlement Cost Deferral - recovered through October 2034 (Note 11 - Qualified Pension Settlement Cost)	250.9	194.7
Retail rate deferrals - recovered through formula rates or rate riders as rates are redetermined by retail regulators	248.6	160.0
Retired electric and gas meters - recovered through retail rates as determined by retail regulators (Note 2 - Retail Rate Proceedings)	153.8	166.8
Opportunity Sales - recovery will be determined after final order in proceeding (Note 2 - Entergy Arkansas Opportunity Sales Proceeding) (b)	131.8	131.8
Deferred COVID-19 costs - recovered through retail rates as determined by retail regulators (Note 2 - Retail Rate Proceedings) (b)	118.0	120.9
Unamortized loss on reacquired debt - recovered over term of debt	63.1	68.4
Pension & postretirement benefits expense deferral - recovered through retail rates (Note 2 - Retail Rate Proceedings and Note 11 - Entergy Texas Reserve)	32.7	30.6
Rate case depreciation relate back deferral - will be recovered over a six-month period beginning January 2024 (Note 2 - Retail Rate Proceedings)	27.6	—
Attorney General litigation costs - recovered over a six-year period through March 2026 (b)	10.9	15.7
Formula rate plan historical year rate adjustment (Note 2 - Retail Rate Proceedings)	—	18.2
Other	143.9	157.4
Entergy Total	$5,669.4	$6,036.4

Schedule of Regulatory Liabilities [Table Text Block]

Entergy

	2023	2022
	(In Millions)
Unrealized gains on nuclear decommissioning trust funds (Note 16) (a)	$1,826.2	$1,237.9
Securitization financing savings obligation (Note 3)	405.2	327.7
Complaints against System Energy - potential future refunds (Note 2) (b)	177.9	249.8
Retail rate over-recovery - refunded through formula rate or rate riders as rates are redetermined by retail regulators	138.0	180.2
Credits expected to be shared with customers from resolution of the 2016-2018 IRS audit (Note 3)	98.0	—
Refund from System Energy settlement with the APSC - return to customers to be determined (Note 2)	93.0	—
Vidalia purchased power agreement (Note 8)	82.5	95.4
Deferred tax equity partnership earnings (Note 1)	57.9	43.8
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
Asset retirement obligation - return to customers dependent upon timing of decommissioning (Note 9) (a)	44.3	43.5
Other	149.5	101.9
Entergy Total	$3,116.9	$2,324.6

Entergy Louisiana [Member]

Schedule of Regulatory Assets [Table Text Block]

Entergy Louisiana

	2023	2022
	(In Millions)
Pension & postretirement costs (Note 11 - Qualified Pension Plans and Non-Qualified Pension Plans) (a)	$412.0	$481.7
Asset retirement obligation - recovery dependent upon timing of decommissioning of nuclear units or shutdown of non-nuclear power plants (Note 9) (a)	408.7	346.3
Removal costs (Note 9)	262.3	418.8
Storm damage costs, including hurricane costs - recovered through securitization and retail rates (Note 2 - Storm Cost Recovery Filings with Retail Regulators)	202.6	472.8
Qualified Pension Settlement Cost Deferral - recovered through October 2034 (Note 11 - Qualified Pension Settlement Cost)	123.0	93.9
Retired electric and gas meters - recovered over a 22-year period through July 2041	83.2	88.0
Deferred COVID-19 costs - recovery period to be determined (Note 2 - Retail Rate Proceedings) (a)	47.8	47.8
Unamortized loss on reacquired debt - recovered over term of debt	23.4	25.1
Other	85.9	81.8
Entergy Louisiana Total	$1,648.9	$2,056.2

Schedule of Regulatory Liabilities [Table Text Block]

Entergy Louisiana

	2023	2022
	(In Millions)
Unrealized gains on nuclear decommissioning trust funds (Note 16) (a)	$644.0	$438.9
Securitization financing savings obligation (Note 3)	405.2	327.7
Retail rate rider over-recovery - refunded through rate riders as rates are determined annually	86.4	87.7
Vidalia purchased power agreement (Note 8)	82.5	95.4
Asset retirement obligation - return to customers dependent upon timing of decommissioning (Note 9) (a)	44.3	43.5
Credits expected to be shared with customers from resolution of the 2016-2018 IRS audit (Note 3)	38.0	—
Shorter-term financing interest earnings (Note 2 - Retail Rate Proceedings) (a)	36.8	—
Hurricane Ida insurance proceeds - refunded through rate rider as rates are determined periodically	32.3	—
Sale-leaseback and depreciation refunds - returned to customers September 2023 through August 2024	14.1	—
Other	24.1	44.8
Entergy Louisiana Total	$1,407.7	$1,038.0

Deferred Fuel Cost [Table Text Block]

The table below shows the amount of deferred fuel costs as of December 31, 2023 and 2022 that each Utility operating company expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.

	2023	2022
	(In Millions)
Entergy Arkansas (a)	($88.3)	$208.6
Entergy Louisiana (b)	$192.9	$327.3
Entergy Mississippi	($130.6)	$143.2
Entergy New Orleans (b)	$10.2	$14.2
Entergy Texas	$139.0	$258.1

(a)Includes $68.9 million in 2022 of fuel and purchased power costs whose recovery period was indeterminate but was expected to be recovered over a period greater than twelve months. In 2023, Entergy Arkansas recorded a write-off of its regulatory asset for deferred fuel of $68.9 million as a result of Entergy Arkansas’s approved motion to forgo recovery of identified costs resulting from the 2013 ANO stator incident. See Note 8 to the financial statements for further discussion of the 2013 ANO stator incident.

(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)
	Principal	Interest	Total
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]

Schedule of Regulatory Assets [Table Text Block]

Entergy New Orleans

	2023	2022
	(In Millions)
Removal costs (Note 9)	$61.1	$56.3
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)	41.4	51.4
Retired electric and gas meters - recovered over a 12-year period through July 2031 (b)	15.5	17.6
Deferred COVID-19 costs - recovered over a five-year period through August 2028 (Note 2 - Retail Rate Proceedings) (b)	13.0	13.9
Qualified Pension Settlement Cost Deferral - recovered through October 2034 (Note 11 - Qualified Pension Settlement Cost)	11.8	9.4
Gas cross-boring costs - recovered through formula rates as rates are redetermined by retail regulators	10.9	9.9
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 New Orleans Securitization Bonds - Hurricane Isaac)	3.9	17.2
Unamortized loss on reacquired debt - recovered over term of debt	0.8	1.2
Other	24.0	25.2
Entergy New Orleans Total	$182.4	$202.1

Schedule of Regulatory Liabilities [Table Text Block]

Entergy New Orleans

	2023	2022
	(In Millions)
Credits expected to be shared with customers from resolution of the 2016-2018 IRS audit (Note 3)	$60.0	$—
Retail rate rider over-recovery - refunded through rate riders as rates are redetermined annually	20.1	19.5
Sale-leaseback and depreciation refunds - returned to customers over a 10-year period beginning September 2023 (Note 2)	9.8	—
Other	0.5	1.2
Entergy New Orleans Total	$90.4	$20.7

Deferred Fuel Cost [Table Text Block]

The table below shows the amount of deferred fuel costs as of December 31, 2023 and 2022 that each Utility operating company expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.

	2023	2022
	(In Millions)
Entergy Arkansas (a)	($88.3)	$208.6
Entergy Louisiana (b)	$192.9	$327.3
Entergy Mississippi	($130.6)	$143.2
Entergy New Orleans (b)	$10.2	$14.2
Entergy Texas	$139.0	$258.1

(a)Includes $68.9 million in 2022 of fuel and purchased power costs whose recovery period was indeterminate but was expected to be recovered over a period greater than twelve months. In 2023, Entergy Arkansas recorded a write-off of its regulatory asset for deferred fuel of $68.9 million as a result of Entergy Arkansas’s approved motion to forgo recovery of identified costs resulting from the 2013 ANO stator incident. See Note 8 to the financial statements for further discussion of the 2013 ANO stator incident.

(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)
	Principal	Interest	Total
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]

Schedule of Regulatory Assets [Table Text Block]

Entergy Texas

	2023	2022
	(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 Ike and Gustav and Entergy Texas Securitization Bonds - Hurricane Laura, Hurricane Delta, and Winter Storm Uri)	$297.3	$315.4
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)	85.6	100.5
Removal costs (Note 9)	77.5	62.9
Pension & postretirement benefits expense deferral - recovered through retail rates (Note 2 - Retail Rate Proceedings and Note 11 - Entergy Texas Reserve)	32.7	30.6
Rate case depreciation relate back deferral - will be recovered over a six-month period beginning January 2024 (Note 2 - Retail Rate Proceedings)	27.6	—
Advanced metering system (AMS) surcharge for residential customers - recovered through December 2029	20.2	—
Retired electric meters - recovered through retail rates (Note 2 - Retail Rate Proceedings)	18.8	21.4
Neches and Sabine costs - recovered over a 10-year period through September 2028	11.6	14.0
Deferred COVID-19 costs - recovered through retail rates (Note 2 - Retail Rate Proceedings) (b)	8.4	10.4
Unamortized loss on reacquired debt - recovered over term of debt	8.3	9.1
Other	8.6	14.4
Entergy Texas Total	$596.6	$578.7

Schedule of Regulatory Liabilities [Table Text Block]

Entergy Texas

	2023	2022
	(In Millions)
Retail rate rider over-recovery - return to customers to be determined	$23.8	$10.9
Rate case settlement relate back - will be amortized over a six-month period beginning January 2024 (Note 2 - Retail Rate Proceedings)	10.3	—
Retail refunds - return to customers to be determined	6.2	25.5
Securitization over-recovery - return to customers to be determined (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)	0.3	8.8
Other	2.4	—
Entergy Texas Total	$43.0	$45.2

Deferred Fuel Cost [Table Text Block]

The table below shows the amount of deferred fuel costs as of December 31, 2023 and 2022 that each Utility operating company expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.

	2023	2022
	(In Millions)
Entergy Arkansas (a)	($88.3)	$208.6
Entergy Louisiana (b)	$192.9	$327.3
Entergy Mississippi	($130.6)	$143.2
Entergy New Orleans (b)	$10.2	$14.2
Entergy Texas	$139.0	$258.1

(a)Includes $68.9 million in 2022 of fuel and purchased power costs whose recovery period was indeterminate but was expected to be recovered over a period greater than twelve months. In 2023, Entergy Arkansas recorded a write-off of its regulatory asset for deferred fuel of $68.9 million as a result of Entergy Arkansas’s approved motion to forgo recovery of identified costs resulting from the 2013 ANO stator incident. See Note 8 to the financial statements for further discussion of the 2013 ANO stator incident.

(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)
	Principal	Interest	Total
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]

Schedule of Regulatory Assets [Table Text Block]

System Energy

	2023	2022
	(In Millions)
Asset retirement obligation - recovery dependent upon timing of decommissioning of nuclear unit (Note 9) (b)	$222.0	$186.1
Pension & postretirement costs (Note 11 - Qualified Pension Plans and Other Postretirement Benefits) (a)	121.6	133.9
Removal costs - recovered through depreciation rates (Note 9)	102.1	94.4
Unamortized loss on reacquired debt - recovered over term of debt	0.7	0.7
System Energy Total	$446.4	$415.1

Schedule of Regulatory Liabilities [Table Text Block]

System Energy

	2023	2022
	(In Millions)
Unrealized gains on nuclear decommissioning trust funds (Note 16) (a)	$560.6	$370.8
Complaints against System Energy - potential future refunds (Note 2) (b)	177.9	249.8
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	$782.9	$665.0

Entergy Mississippi [Member]

Schedule of Regulatory Assets [Table Text Block]

Entergy Mississippi

	2023	2022
	(In Millions)
Retail rate deferrals - recovered through formula rates or rate riders as rates are redetermined annually	$192.8	$111.1
Removal Costs (Note 9)	188.0	159.4
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)	127.6	148.8
Qualified Pension Settlement Cost Deferral - recovered through October 2034 (Note 11 - Qualified Pension Settlement Cost)	32.0	24.3
Attorney General litigation costs - recovered over a six-year period through March 2026 (b)	10.9	15.7
Unamortized loss on reacquired debt - recovered over term of debt	10.0	10.9
Asset retirement obligation - recovery dependent upon timing of shutdown of non-nuclear power plants (Note 9) (a)	6.8	6.3
Formula rate plan historical year rate adjustment (Note 2 - Retail Rate Proceedings)	—	18.2
Other	11.0	24.8
Entergy Mississippi Total	$579.1	$519.5

Schedule of Regulatory Liabilities [Table Text Block]

Entergy Mississippi

	2023	2022
	(In Millions)
Deferred tax equity partnership earnings (Note 1)	$30.5	$21.4
Retail rate rider over-recovery - refunded through rate riders as rates are redetermined annually	2.4	58.2
Other	0.8	0.3
Entergy Mississippi Total	$33.7	$79.9

Deferred Fuel Cost [Table Text Block]

The table below shows the amount of deferred fuel costs as of December 31, 2023 and 2022 that each Utility operating company expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.

	2023	2022
	(In Millions)
Entergy Arkansas (a)	($88.3)	$208.6
Entergy Louisiana (b)	$192.9	$327.3
Entergy Mississippi	($130.6)	$143.2
Entergy New Orleans (b)	$10.2	$14.2
Entergy Texas	$139.0	$258.1

(a)Includes $68.9 million in 2022 of fuel and purchased power costs whose recovery period was indeterminate but was expected to be recovered over a period greater than twelve months. In 2023, Entergy Arkansas recorded a write-off of its regulatory asset for deferred fuel of $68.9 million as a result of Entergy Arkansas’s approved motion to forgo recovery of identified costs resulting from the 2013 ANO stator incident. See Note 8 to the financial statements for further discussion of the 2013 ANO stator incident.

(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)
	Principal	Interest	Total
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]

Schedule of Regulatory Assets [Table Text Block]

Entergy Arkansas

	2023	2022
	(In Millions)
Asset retirement obligation - recovery dependent upon timing of decommissioning of nuclear units or shutdown of non-nuclear power plants (Note 9) (a)	$639.1	$562.7
Pension & postretirement costs (Note 11 - Qualified Pension Plans, Other Postretirement Benefits, and Non-Qualified Pension Plans) (a)	536.6	597.6
Removal costs (Note 9)	319.7	267.1
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 through October 2034 (Note 11 - Qualified Pension Settlement Cost)	84.1	67.1
Deferred COVID-19 costs - recovered over a 10-year period through December 2033	39.0	39.0
Retired electric meters - recovered over 15-year period through March 2034	36.3	39.8
Storm damage costs - recovered through retail rates	33.1	35.9
Retail rate deferrals - recovered through rate riders as rates are redetermined annually (b)	24.9	26.4
Unamortized loss on reacquired debt - recovered over term of debt	19.9	21.4
ANO Fukushima and Flood Barrier costs - recovered through retail rates through February 2026 (b)	3.8	5.6
Other	17.1	15.9
Entergy Arkansas Total	$1,885.4	$1,810.3

Schedule of Regulatory Liabilities [Table Text Block]

Entergy Arkansas

	2023	2022
	(In Millions)
Unrealized gains on nuclear decommissioning trust funds (Note 16) (a)	$621.6	$428.2
Refund from System Energy settlement with the APSC - return to customers to be determined (Note 2)	93.0	—
Deferred tax equity partnership earnings (Note 1)	27.4	22.4
Retail rate rider over-recovery - refunded through rate riders as rates are redetermined annually	10.6	3.9
Internal restructuring guaranteed customer credits - returned to customers over a six-year period through December 2024	6.6	13.2
Other	—	8.1
Entergy Arkansas Total	$759.2	$475.8

Deferred Fuel Cost [Table Text Block]

The table below shows the amount of deferred fuel costs as of December 31, 2023 and 2022 that each Utility operating company expects to recover (or return to customers) through fuel mechanisms, subject to subsequent regulatory review.

	2023	2022
	(In Millions)
Entergy Arkansas (a)	($88.3)	$208.6
Entergy Louisiana (b)	$192.9	$327.3
Entergy Mississippi	($130.6)	$143.2
Entergy New Orleans (b)	$10.2	$14.2
Entergy Texas	$139.0	$258.1

(a)Includes $68.9 million in 2022 of fuel and purchased power costs whose recovery period was indeterminate but was expected to be recovered over a period greater than twelve months. In 2023, Entergy Arkansas recorded a write-off of its regulatory asset for deferred fuel of $68.9 million as a result of Entergy Arkansas’s approved motion to forgo recovery of identified costs resulting from the 2013 ANO stator incident. See Note 8 to the financial statements for further discussion of the 2013 ANO stator incident.

(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)
	Principal	Interest	Total
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)