Acquisitions, Held for Sale, and Dispositions (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 31, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Jul. 01, 2025	Dec. 31, 2024
Asset Acquisition [Line Items]
Asset Impairment Charges		$ 12,795	$ 0	$ 12,795	$ 131,775
Disposal Group, Held-for-Sale, Not Discontinued Operations | Entergy New Orleans and Entergy Louisiana natural gas distribution businesses
Asset Acquisition [Line Items]
Income (Loss) from Individually Significant Component Disposed of or Held-for-Sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax		0	7,344	31,500	34,803
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 17,000
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent						$ 7,000	$ 6,474
Disposal Group, Not Discontinued Operations, Transaction Costs						33,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, net of tax	11,000
Disposal Group, Liabilities, Regulatory Liability, Noncurrent							1,611
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas							679,502
Entergy Arkansas [Member]
Asset Acquisition [Line Items]
Asset Impairment Charges		0	0	0	131,775
Entergy Louisiana [Member] | Disposal Group, Held-for-Sale, Not Discontinued Operations | Entergy Louisiana natural gas distribution business
Asset Acquisition [Line Items]
Income (Loss) from Individually Significant Component Disposed of or Held-for-Sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax		0	3,110	12,047	15,968
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	17,000
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent							0
Disposal Group, Not Discontinued Operations, Transaction Costs						15,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, net of tax	13,000
Disposal Group, Liabilities, Regulatory Liability, Noncurrent							1,214
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas							303,193
Disposal Group, Including Discontinued Operation, Consideration						203,000
Entergy New Orleans [Member]
Asset Acquisition [Line Items]
Asset Impairment Charges		12,795	0	12,795	0
Entergy New Orleans [Member] | Disposal Group, Held-for-Sale, Not Discontinued Operations | Entergy New Orleans natural gas distribution business
Asset Acquisition [Line Items]
Income (Loss) from Individually Significant Component Disposed of or Held-for-Sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax		$ 0	$ 4,234	$ 19,453	$ 18,835
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	7,000
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent							0
Disposal Group, Not Discontinued Operations, Transaction Costs						18,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, net of tax	5,000
Disposal Group, Liabilities, Regulatory Liability, Noncurrent						4,000	397
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas							$ 376,309
Disposal Group, Including Discontinued Operation, Consideration						$ 288,000
Asset Impairment Charges	$ 13,000