Acquisitions, Held for Sale, and Dispositions (Disposal Groups, Including Discontinued Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Jul. 01, 2025	Dec. 31, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Assets, Current	$ 0		$ 0			$ 15,574
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	0		0			462,797
Entergy Louisiana [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Assets, Current	0		0			2,474
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	0		0			173,669
Entergy New Orleans [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Assets, Current	0		0			13,100
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	0		0			284,738
Disposal Group, Held-for-Sale, Not Discontinued Operations | Entergy New Orleans and Entergy Louisiana natural gas distribution businesses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Assets, Deferred Fuel Cost						5,608
Disposal Group, Assets, Energy Related Inventory						4,493
Disposal Group, Assets, Public Utilities, Inventory						5,451
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current						22
Disposal Group, Including Discontinued Operation, Assets, Current						15,574
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas						679,502
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Construction Work In Progress						2,959
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Accumulated Depreciation						(276,388)
Disposal Group, Assets, Regulatory Asset, Noncurrent						35,381
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent					$ 7,000	6,474
Disposal Group, Assets, Defined Benefit Plan, Noncurrent						14,663
Disposal Group, Assets, Other Assets, Noncurrent						206
Disposal Group, Including Discontinued Operation, Assets, Noncurrent						462,797
Disposal Group, Including Discontinued Operation, Accounts Payable, Current						702
Disposal Group, Liabilities, Contract with Customer, Refund Liability, Current						6,214
Disposal Group, Liabilities, Taxes Payable, Current						13
Disposal Group, Including Discontinued Operation, Other Liabilities, Current						1,401
Disposal Group, Including Discontinued Operation, Liabilities, Current						8,330
Disposal Group, Liabilities, Regulatory Liability for Income Taxes - net						31,575
Disposal Group, Liabilities, Regulatory Liability, Noncurrent						1,611
Disposal Group, Liabilities, Defined Benefit Plan, Noncurrent						3,976
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent						3,844
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent						41,006
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, Held-for-Sale, Not Discontinued Operations | Entergy Louisiana natural gas distribution business | Entergy Louisiana [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Assets, Deferred Fuel Cost						727
Disposal Group, Assets, Energy Related Inventory						702
Disposal Group, Assets, Public Utilities, Inventory						1,045
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current						0
Disposal Group, Including Discontinued Operation, Assets, Current						2,474
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas						303,193
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Construction Work In Progress						1,085
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Accumulated Depreciation						(139,556)
Disposal Group, Assets, Regulatory Asset, Noncurrent						8,947
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent						0
Disposal Group, Assets, Defined Benefit Plan, Noncurrent						0
Disposal Group, Assets, Other Assets, Noncurrent						0
Disposal Group, Including Discontinued Operation, Assets, Noncurrent						173,669
Disposal Group, Including Discontinued Operation, Accounts Payable, Current						702
Disposal Group, Liabilities, Contract with Customer, Refund Liability, Current						1,984
Disposal Group, Liabilities, Taxes Payable, Current						13
Disposal Group, Including Discontinued Operation, Other Liabilities, Current						589
Disposal Group, Including Discontinued Operation, Liabilities, Current						3,288
Disposal Group, Liabilities, Regulatory Liability for Income Taxes - net						4,981
Disposal Group, Liabilities, Regulatory Liability, Noncurrent						1,214
Disposal Group, Liabilities, Defined Benefit Plan, Noncurrent						4,525
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent						1,194
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent						11,914
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, Held-for-Sale, Not Discontinued Operations | Entergy New Orleans natural gas distribution business | Entergy New Orleans [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Assets, Deferred Fuel Cost						4,881
Disposal Group, Assets, Energy Related Inventory						3,791
Disposal Group, Assets, Public Utilities, Inventory						4,406
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current						22
Disposal Group, Including Discontinued Operation, Assets, Current						13,100
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas						376,309
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Construction Work In Progress						1,874
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Accumulated Depreciation						(136,832)
Disposal Group, Assets, Regulatory Asset, Noncurrent						23,682
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent						0
Disposal Group, Assets, Defined Benefit Plan, Noncurrent						19,499
Disposal Group, Assets, Other Assets, Noncurrent						206
Disposal Group, Including Discontinued Operation, Assets, Noncurrent						284,738
Disposal Group, Including Discontinued Operation, Accounts Payable, Current						0
Disposal Group, Liabilities, Contract with Customer, Refund Liability, Current						4,230
Disposal Group, Liabilities, Taxes Payable, Current						0
Disposal Group, Including Discontinued Operation, Other Liabilities, Current						812
Disposal Group, Including Discontinued Operation, Liabilities, Current						5,042
Disposal Group, Liabilities, Regulatory Liability for Income Taxes - net						26,594
Disposal Group, Liabilities, Regulatory Liability, Noncurrent					$ 4,000	397
Disposal Group, Liabilities, Defined Benefit Plan, Noncurrent						1,197
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent						2,650
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent						$ 30,838
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