Acquisitions, Held for Sale, and Dispositions (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Jul. 01, 2025	Dec. 31, 2024
Asset Acquisition [Line Items]
Asset Impairment Charges		$ 0	$ 0	$ 0	$ 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		9,484	7,527	31,500	27,459
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent		6,517		6,517			$ 6,474
Disposal Group, Liabilities, Regulatory Liability, Noncurrent		2,579		2,579			1,611
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas		697,812		697,812			679,502
Subsequent Event [Member] | Disposal Group, Held-for-Sale, Not Discontinued Operations | Entergy New Orleans and Entergy Louisiana natural gas distribution businesses
Asset Acquisition [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 11,000
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent						$ 7,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, net of tax	6,000
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		2,272	2,754	12,047	12,858
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent		0		0			0
Disposal Group, Liabilities, Regulatory Liability, Noncurrent		945		945			1,214
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas		311,898		311,898			303,193
Entergy Louisiana [Member] | Subsequent Event [Member] | Disposal Group, Held-for-Sale, Not Discontinued Operations | Entergy Louisiana natural gas distribution business
Asset Acquisition [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	12,000
Disposal Group, Not Discontinued Operations, Transaction Costs						20,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, net of tax	9,000
Disposal Group, Including Discontinued Operation, Consideration						203,000
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		7,212	$ 4,773	19,453	$ 14,601
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent		0		0			0
Disposal Group, Liabilities, Regulatory Liability, Noncurrent		1,634		1,634			397
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas		$ 385,914		$ 385,914			$ 376,309
Entergy New Orleans [Member] | Subsequent Event [Member] | Disposal Group, Held-for-Sale, Not Discontinued Operations | Entergy New Orleans natural gas distribution business
Asset Acquisition [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	5,000
Disposal Group, Not Discontinued Operations, Transaction Costs						19,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, net of tax	4,000
Disposal Group, Liabilities, Regulatory Liability, Noncurrent						4,000
Disposal Group, Including Discontinued Operation, Consideration						$ 288,000
Asset Impairment Charges	$ 12,000