Business Combinations and Asset Acquisitions	9 Months Ended
Business Combinations and Asset Acquisitions	Sep. 30, 2024
Asset Acquisition [Line Items]
Asset Acquisition [Text Block]	ACQUISITIONS (Entergy Corporation and Entergy Arkansas) Acquisitions Walnut Bend Solar In June 2020, Entergy Arkansas signed a build-own-transfer agreement for the purchase of an approximately 100 MW to-be-constructed solar photovoltaic energy facility, Walnut Bend Solar facility, to be sited on approximately 1,000 acres in Lee County, Arkansas. Acquisition of the Walnut Bend Solar facility was initially approved by the APSC in July 2021. The agreement was amended by the parties in February 2023, and the revised agreement was approved by the APSC in July 2023. In February 2024, Entergy Arkansas made an initial payment of approximately $170 million to acquire the facility. Substantial completion was achieved and commercial operation commenced in September 2024, at which time Entergy Arkansas made a substantial completion payment of approximately $16 million for acquisition of the facility. West Memphis Solar In September 2020, Entergy Arkansas signed a build-own-transfer agreement for the purchase of an approximately 180 MW to-be-constructed solar photovoltaic energy facility, West Memphis Solar facility, to be sited on approximately 1,500 acres in Crittenden County, Arkansas. Acquisition of the West Memphis Solar facility was initially approved by the APSC in October 2021. In March 2022 the counterparty to the build-own-transfer agreement notified Entergy Arkansas that it was seeking changes to certain terms of the agreement, including both cost and schedule. Entergy Arkansas filed a supplemental application with the APSC in January 2023 for a change in the transmission route and updates to the cost and schedule, which was approved by the APSC in March 2023. In August 2024, Entergy Arkansas made an initial payment of approximately $48 million to acquire the facility. The project will commence commercial operation once testing is completed and the project has achieved substantial completion. Entergy Arkansas expects the project to commence commercial operation in November 2024, at which time a substantial completion payment of approximately $200 million is expected. Driver Solar In August 2022, Entergy Arkansas signed a build-own-transfer agreement for the purchase of an approximately 250 MW to-be-constructed solar photovoltaic energy facility, Driver Solar facility, to be sited near Osceola, Arkansas. Acquisition of the Driver Solar facility was approved by the APSC in August 2022. In August 2024, Entergy Arkansas made an initial payment of approximately $308 million to acquire the facility. The project will commence commercial operation once testing is completed and the project has achieved substantial completion. Entergy Arkansas currently expects the project to commence commercial operation by the end of 2024, at which time a substantial completion payment of approximately $100 million is expected.
Entergy Arkansas [Member]
Asset Acquisition [Line Items]
Asset Acquisition [Text Block]	ACQUISITIONS (Entergy Corporation and Entergy Arkansas) Acquisitions Walnut Bend Solar In June 2020, Entergy Arkansas signed a build-own-transfer agreement for the purchase of an approximately 100 MW to-be-constructed solar photovoltaic energy facility, Walnut Bend Solar facility, to be sited on approximately 1,000 acres in Lee County, Arkansas. Acquisition of the Walnut Bend Solar facility was initially approved by the APSC in July 2021. The agreement was amended by the parties in February 2023, and the revised agreement was approved by the APSC in July 2023. In February 2024, Entergy Arkansas made an initial payment of approximately $170 million to acquire the facility. Substantial completion was achieved and commercial operation commenced in September 2024, at which time Entergy Arkansas made a substantial completion payment of approximately $16 million for acquisition of the facility. West Memphis Solar In September 2020, Entergy Arkansas signed a build-own-transfer agreement for the purchase of an approximately 180 MW to-be-constructed solar photovoltaic energy facility, West Memphis Solar facility, to be sited on approximately 1,500 acres in Crittenden County, Arkansas. Acquisition of the West Memphis Solar facility was initially approved by the APSC in October 2021. In March 2022 the counterparty to the build-own-transfer agreement notified Entergy Arkansas that it was seeking changes to certain terms of the agreement, including both cost and schedule. Entergy Arkansas filed a supplemental application with the APSC in January 2023 for a change in the transmission route and updates to the cost and schedule, which was approved by the APSC in March 2023. In August 2024, Entergy Arkansas made an initial payment of approximately $48 million to acquire the facility. The project will commence commercial operation once testing is completed and the project has achieved substantial completion. Entergy Arkansas expects the project to commence commercial operation in November 2024, at which time a substantial completion payment of approximately $200 million is expected. Driver Solar In August 2022, Entergy Arkansas signed a build-own-transfer agreement for the purchase of an approximately 250 MW to-be-constructed solar photovoltaic energy facility, Driver Solar facility, to be sited near Osceola, Arkansas. Acquisition of the Driver Solar facility was approved by the APSC in August 2022. In August 2024, Entergy Arkansas made an initial payment of approximately $308 million to acquire the facility. The project will commence commercial operation once testing is completed and the project has achieved substantial completion. Entergy Arkansas currently expects the project to commence commercial operation by the end of 2024, at which time a substantial completion payment of approximately $100 million is expected.