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Transactions With Affiliates
12 Months Ended
Dec. 31, 2023
Entergy Arkansas [Member]  
Related Party Transactions Disclosure [Text Block] TRANSACTIONS WITH AFFILIATES (Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)
Each Registrant Subsidiary purchases electricity from or sells electricity to the other Registrant Subsidiaries, or both, under rate schedules filed with the FERC.  The Registrant Subsidiaries receive management, technical, advisory, operating, and administrative services from Entergy Services; and receive management, technical, and operating services from Entergy Operations.  These transactions are on an “at cost” basis.

As described in Note 1 to the financial statements, all of System Energy’s operating revenues consist of billings to Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, and Entergy New Orleans.

As described in Note 4 to the financial statements, the Registrant Subsidiaries participate in the Entergy system money pool and earn interest income from the money pool.  As described in Note 2 to the financial statements, Entergy Louisiana received preferred membership interest distributions from Entergy Holdings Company through May 2022, at which point Entergy Holdings Company was dissolved. As a result of storm securitizations at Entergy Louisiana in 2022 and 2023, the Entergy Louisiana storm trust I purchased preferred membership interests issued by Entergy Finance Company in May 2022 and the Entergy Louisiana storm trust II purchased preferred membership interests issued by Entergy Finance Company in March 2023. The Entergy Louisiana storm trust I and storm trust II receive annual dividends on their respective preferred membership interests.

The tables below contain the various affiliate transactions of the Utility operating companies, System Energy, and other Entergy affiliates.
Intercompany Revenues
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$125.2 $317.6 $1.0 $— $0.7 $588.4 
2022$127.5 $354.0 $1.0 $— $18.9 $658.8 
2021$109.8 $289.9 $1.4 $— $64.3 $545.6 

Intercompany Operating Expenses
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$585.8 $719.8 $345.2 $302.5 $316.8 $179.0 
2022$617.4 $770.2 $356.1 $341.7 $321.4 $215.0 
2021$559.7 $755.2 $299.8 $287.8 $275.0 $190.8 
Intercompany Interest and Investment Income
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$0.7 $303.2 $0.2 $1.0 $1.8 $0.6 
2022$0.1 $186.1 $0.1 $0.1 $0.3 $0.3 
2021$— $127.6 $— $— $— $— 
Entergy Louisiana [Member]  
Related Party Transactions Disclosure [Text Block] TRANSACTIONS WITH AFFILIATES (Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)
Each Registrant Subsidiary purchases electricity from or sells electricity to the other Registrant Subsidiaries, or both, under rate schedules filed with the FERC.  The Registrant Subsidiaries receive management, technical, advisory, operating, and administrative services from Entergy Services; and receive management, technical, and operating services from Entergy Operations.  These transactions are on an “at cost” basis.

As described in Note 1 to the financial statements, all of System Energy’s operating revenues consist of billings to Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, and Entergy New Orleans.

As described in Note 4 to the financial statements, the Registrant Subsidiaries participate in the Entergy system money pool and earn interest income from the money pool.  As described in Note 2 to the financial statements, Entergy Louisiana received preferred membership interest distributions from Entergy Holdings Company through May 2022, at which point Entergy Holdings Company was dissolved. As a result of storm securitizations at Entergy Louisiana in 2022 and 2023, the Entergy Louisiana storm trust I purchased preferred membership interests issued by Entergy Finance Company in May 2022 and the Entergy Louisiana storm trust II purchased preferred membership interests issued by Entergy Finance Company in March 2023. The Entergy Louisiana storm trust I and storm trust II receive annual dividends on their respective preferred membership interests.

The tables below contain the various affiliate transactions of the Utility operating companies, System Energy, and other Entergy affiliates.
Intercompany Revenues
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$125.2 $317.6 $1.0 $— $0.7 $588.4 
2022$127.5 $354.0 $1.0 $— $18.9 $658.8 
2021$109.8 $289.9 $1.4 $— $64.3 $545.6 

Intercompany Operating Expenses
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$585.8 $719.8 $345.2 $302.5 $316.8 $179.0 
2022$617.4 $770.2 $356.1 $341.7 $321.4 $215.0 
2021$559.7 $755.2 $299.8 $287.8 $275.0 $190.8 
Intercompany Interest and Investment Income
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$0.7 $303.2 $0.2 $1.0 $1.8 $0.6 
2022$0.1 $186.1 $0.1 $0.1 $0.3 $0.3 
2021$— $127.6 $— $— $— $— 
Entergy Mississippi [Member]  
Related Party Transactions Disclosure [Text Block] TRANSACTIONS WITH AFFILIATES (Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)
Each Registrant Subsidiary purchases electricity from or sells electricity to the other Registrant Subsidiaries, or both, under rate schedules filed with the FERC.  The Registrant Subsidiaries receive management, technical, advisory, operating, and administrative services from Entergy Services; and receive management, technical, and operating services from Entergy Operations.  These transactions are on an “at cost” basis.

As described in Note 1 to the financial statements, all of System Energy’s operating revenues consist of billings to Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, and Entergy New Orleans.

As described in Note 4 to the financial statements, the Registrant Subsidiaries participate in the Entergy system money pool and earn interest income from the money pool.  As described in Note 2 to the financial statements, Entergy Louisiana received preferred membership interest distributions from Entergy Holdings Company through May 2022, at which point Entergy Holdings Company was dissolved. As a result of storm securitizations at Entergy Louisiana in 2022 and 2023, the Entergy Louisiana storm trust I purchased preferred membership interests issued by Entergy Finance Company in May 2022 and the Entergy Louisiana storm trust II purchased preferred membership interests issued by Entergy Finance Company in March 2023. The Entergy Louisiana storm trust I and storm trust II receive annual dividends on their respective preferred membership interests.

The tables below contain the various affiliate transactions of the Utility operating companies, System Energy, and other Entergy affiliates.
Intercompany Revenues
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$125.2 $317.6 $1.0 $— $0.7 $588.4 
2022$127.5 $354.0 $1.0 $— $18.9 $658.8 
2021$109.8 $289.9 $1.4 $— $64.3 $545.6 

Intercompany Operating Expenses
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$585.8 $719.8 $345.2 $302.5 $316.8 $179.0 
2022$617.4 $770.2 $356.1 $341.7 $321.4 $215.0 
2021$559.7 $755.2 $299.8 $287.8 $275.0 $190.8 
Intercompany Interest and Investment Income
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$0.7 $303.2 $0.2 $1.0 $1.8 $0.6 
2022$0.1 $186.1 $0.1 $0.1 $0.3 $0.3 
2021$— $127.6 $— $— $— $— 
Entergy New Orleans [Member]  
Related Party Transactions Disclosure [Text Block] TRANSACTIONS WITH AFFILIATES (Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)
Each Registrant Subsidiary purchases electricity from or sells electricity to the other Registrant Subsidiaries, or both, under rate schedules filed with the FERC.  The Registrant Subsidiaries receive management, technical, advisory, operating, and administrative services from Entergy Services; and receive management, technical, and operating services from Entergy Operations.  These transactions are on an “at cost” basis.

As described in Note 1 to the financial statements, all of System Energy’s operating revenues consist of billings to Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, and Entergy New Orleans.

As described in Note 4 to the financial statements, the Registrant Subsidiaries participate in the Entergy system money pool and earn interest income from the money pool.  As described in Note 2 to the financial statements, Entergy Louisiana received preferred membership interest distributions from Entergy Holdings Company through May 2022, at which point Entergy Holdings Company was dissolved. As a result of storm securitizations at Entergy Louisiana in 2022 and 2023, the Entergy Louisiana storm trust I purchased preferred membership interests issued by Entergy Finance Company in May 2022 and the Entergy Louisiana storm trust II purchased preferred membership interests issued by Entergy Finance Company in March 2023. The Entergy Louisiana storm trust I and storm trust II receive annual dividends on their respective preferred membership interests.

The tables below contain the various affiliate transactions of the Utility operating companies, System Energy, and other Entergy affiliates.
Intercompany Revenues
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$125.2 $317.6 $1.0 $— $0.7 $588.4 
2022$127.5 $354.0 $1.0 $— $18.9 $658.8 
2021$109.8 $289.9 $1.4 $— $64.3 $545.6 

Intercompany Operating Expenses
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$585.8 $719.8 $345.2 $302.5 $316.8 $179.0 
2022$617.4 $770.2 $356.1 $341.7 $321.4 $215.0 
2021$559.7 $755.2 $299.8 $287.8 $275.0 $190.8 
Intercompany Interest and Investment Income
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$0.7 $303.2 $0.2 $1.0 $1.8 $0.6 
2022$0.1 $186.1 $0.1 $0.1 $0.3 $0.3 
2021$— $127.6 $— $— $— $— 
Entergy Texas [Member]  
Related Party Transactions Disclosure [Text Block] TRANSACTIONS WITH AFFILIATES (Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)
Each Registrant Subsidiary purchases electricity from or sells electricity to the other Registrant Subsidiaries, or both, under rate schedules filed with the FERC.  The Registrant Subsidiaries receive management, technical, advisory, operating, and administrative services from Entergy Services; and receive management, technical, and operating services from Entergy Operations.  These transactions are on an “at cost” basis.

As described in Note 1 to the financial statements, all of System Energy’s operating revenues consist of billings to Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, and Entergy New Orleans.

As described in Note 4 to the financial statements, the Registrant Subsidiaries participate in the Entergy system money pool and earn interest income from the money pool.  As described in Note 2 to the financial statements, Entergy Louisiana received preferred membership interest distributions from Entergy Holdings Company through May 2022, at which point Entergy Holdings Company was dissolved. As a result of storm securitizations at Entergy Louisiana in 2022 and 2023, the Entergy Louisiana storm trust I purchased preferred membership interests issued by Entergy Finance Company in May 2022 and the Entergy Louisiana storm trust II purchased preferred membership interests issued by Entergy Finance Company in March 2023. The Entergy Louisiana storm trust I and storm trust II receive annual dividends on their respective preferred membership interests.

The tables below contain the various affiliate transactions of the Utility operating companies, System Energy, and other Entergy affiliates.
Intercompany Revenues
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$125.2 $317.6 $1.0 $— $0.7 $588.4 
2022$127.5 $354.0 $1.0 $— $18.9 $658.8 
2021$109.8 $289.9 $1.4 $— $64.3 $545.6 

Intercompany Operating Expenses
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$585.8 $719.8 $345.2 $302.5 $316.8 $179.0 
2022$617.4 $770.2 $356.1 $341.7 $321.4 $215.0 
2021$559.7 $755.2 $299.8 $287.8 $275.0 $190.8 
Intercompany Interest and Investment Income
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$0.7 $303.2 $0.2 $1.0 $1.8 $0.6 
2022$0.1 $186.1 $0.1 $0.1 $0.3 $0.3 
2021$— $127.6 $— $— $— $— 
System Energy [Member]  
Related Party Transactions Disclosure [Text Block] TRANSACTIONS WITH AFFILIATES (Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)
Each Registrant Subsidiary purchases electricity from or sells electricity to the other Registrant Subsidiaries, or both, under rate schedules filed with the FERC.  The Registrant Subsidiaries receive management, technical, advisory, operating, and administrative services from Entergy Services; and receive management, technical, and operating services from Entergy Operations.  These transactions are on an “at cost” basis.

As described in Note 1 to the financial statements, all of System Energy’s operating revenues consist of billings to Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, and Entergy New Orleans.

As described in Note 4 to the financial statements, the Registrant Subsidiaries participate in the Entergy system money pool and earn interest income from the money pool.  As described in Note 2 to the financial statements, Entergy Louisiana received preferred membership interest distributions from Entergy Holdings Company through May 2022, at which point Entergy Holdings Company was dissolved. As a result of storm securitizations at Entergy Louisiana in 2022 and 2023, the Entergy Louisiana storm trust I purchased preferred membership interests issued by Entergy Finance Company in May 2022 and the Entergy Louisiana storm trust II purchased preferred membership interests issued by Entergy Finance Company in March 2023. The Entergy Louisiana storm trust I and storm trust II receive annual dividends on their respective preferred membership interests.

The tables below contain the various affiliate transactions of the Utility operating companies, System Energy, and other Entergy affiliates.
Intercompany Revenues
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$125.2 $317.6 $1.0 $— $0.7 $588.4 
2022$127.5 $354.0 $1.0 $— $18.9 $658.8 
2021$109.8 $289.9 $1.4 $— $64.3 $545.6 

Intercompany Operating Expenses
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$585.8 $719.8 $345.2 $302.5 $316.8 $179.0 
2022$617.4 $770.2 $356.1 $341.7 $321.4 $215.0 
2021$559.7 $755.2 $299.8 $287.8 $275.0 $190.8 
Intercompany Interest and Investment Income
 Entergy ArkansasEntergy LouisianaEntergy MississippiEntergy New OrleansEntergy TexasSystem Energy
 (In Millions)
2023$0.7 $303.2 $0.2 $1.0 $1.8 $0.6 
2022$0.1 $186.1 $0.1 $0.1 $0.3 $0.3 
2021$— $127.6 $— $— $— $—