Acquisitions, Held for Sale, and Dispositions (Disposal Groups, Including Discontinued Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	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	$ 19,602		$ 19,602		$ 15,574
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	472,528		472,528		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	4,845		4,845		2,474
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	178,746		178,746		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	14,757		14,757		13,100
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	289,126		289,126		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	5,829		5,829		5,608
Disposal Group, Assets, Energy Related Inventory	4,828		4,828		4,493
Disposal Group, Assets, Public Utilities, Inventory	7,604		7,604		5,451
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current	1,341		1,341		22
Disposal Group, Including Discontinued Operation, Assets, Current	19,602		19,602		15,574
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas	697,812		697,812		679,502
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Construction Work In Progress	2,710		2,710		2,959
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Accumulated Depreciation	(283,404)		(283,404)		(276,388)
Disposal Group, Assets, Regulatory Asset, Noncurrent	33,523		33,523		35,381
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent	6,517		6,517		6,474
Disposal Group, Assets, Defined Benefit Plan, Noncurrent	15,171		15,171		14,663
Disposal Group, Assets, Other Assets, Noncurrent	199		199		206
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	472,528		472,528		462,797
Disposal Group, Including Discontinued Operation, Accounts Payable, Current	2,945		2,945		702
Disposal Group, Liabilities, Contract with Customer, Refund Liability, Current	5,327		5,327		6,214
Disposal Group, Liabilities, Taxes Payable, Current	0		0		13
Disposal Group, Including Discontinued Operation, Other Liabilities, Current	1,352		1,352		1,401
Disposal Group, Including Discontinued Operation, Liabilities, Current	9,624		9,624		8,330
Disposal Group, Liabilities, Regulatory Liability for Income Taxes - net	28,438		28,438		31,575
Disposal Group, Liabilities, Regulatory Liability, Noncurrent	2,579		2,579		1,611
Disposal Group, Liabilities, Defined Benefit Plan, Noncurrent	4,236		4,236		3,976
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent	4,146		4,146		3,844
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	39,399		39,399		41,006
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, 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	3,324		3,324		727
Disposal Group, Assets, Energy Related Inventory	295		295		702
Disposal Group, Assets, Public Utilities, Inventory	1,172		1,172		1,045
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current	54		54		0
Disposal Group, Including Discontinued Operation, Assets, Current	4,845		4,845		2,474
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas	311,898		311,898		303,193
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Construction Work In Progress	1,730		1,730		1,085
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Accumulated Depreciation	(141,818)		(141,818)		(139,556)
Disposal Group, Assets, Regulatory Asset, Noncurrent	6,936		6,936		8,947
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent	0		0		0
Disposal Group, Assets, Defined Benefit Plan, Noncurrent	0		0		0
Disposal Group, Assets, Other Assets, Noncurrent	0		0		0
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	178,746		178,746		173,669
Disposal Group, Including Discontinued Operation, Accounts Payable, Current	295		295		702
Disposal Group, Liabilities, Contract with Customer, Refund Liability, Current	2,572		2,572		1,984
Disposal Group, Liabilities, Taxes Payable, Current	0		0		13
Disposal Group, Including Discontinued Operation, Other Liabilities, Current	536		536		589
Disposal Group, Including Discontinued Operation, Liabilities, Current	3,403		3,403		3,288
Disposal Group, Liabilities, Regulatory Liability for Income Taxes - net	3,193		3,193		4,981
Disposal Group, Liabilities, Regulatory Liability, Noncurrent	945		945		1,214
Disposal Group, Liabilities, Defined Benefit Plan, Noncurrent	4,643		4,643		4,525
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent	1,414		1,414		1,194
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	10,195		10,195		11,914
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, 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	2,505		2,505		4,881
Disposal Group, Assets, Energy Related Inventory	4,533		4,533		3,791
Disposal Group, Assets, Public Utilities, Inventory	6,432		6,432		4,406
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current	1,287		1,287		22
Disposal Group, Including Discontinued Operation, Assets, Current	14,757		14,757		13,100
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas	385,914		385,914		376,309
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Construction Work In Progress	980		980		1,874
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Accumulated Depreciation	(141,586)		(141,586)		(136,832)
Disposal Group, Assets, Regulatory Asset, Noncurrent	23,667		23,667		23,682
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent	0		0		0
Disposal Group, Assets, Defined Benefit Plan, Noncurrent	19,952		19,952		19,499
Disposal Group, Assets, Other Assets, Noncurrent	199		199		206
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	289,126		289,126		284,738
Disposal Group, Including Discontinued Operation, Accounts Payable, Current	2,650		2,650		0
Disposal Group, Liabilities, Contract with Customer, Refund Liability, Current	2,755		2,755		4,230
Disposal Group, Liabilities, Taxes Payable, Current	0		0		0
Disposal Group, Including Discontinued Operation, Other Liabilities, Current	816		816		812
Disposal Group, Including Discontinued Operation, Liabilities, Current	6,221		6,221		5,042
Disposal Group, Liabilities, Regulatory Liability for Income Taxes - net	25,245		25,245		26,594
Disposal Group, Liabilities, Regulatory Liability, Noncurrent	1,634		1,634		397
Disposal Group, Liabilities, Defined Benefit Plan, Noncurrent	1,610		1,610		1,197
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent	2,732		2,732		2,650
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	31,221		31,221		$ 30,838
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