Acquisitions, Held for Sale, and Dispositions (Disposal Groups, Including Discontinued Operations) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 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	$ 15,898		$ 15,574
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	467,215		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	4,680		2,474
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	176,579		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	11,218		13,100
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	286,317		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	5,318		5,608
Disposal Group, Assets, Energy Related Inventory	3,506		4,493
Disposal Group, Assets, Public Utilities, Inventory	5,065		5,451
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current	2,009		22
Disposal Group, Including Discontinued Operation, Assets, Current	15,898		15,574
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas	688,009		679,502
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Construction Work In Progress	3,441		2,959
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Accumulated Depreciation	(280,796)		(276,388)
Disposal Group, Assets, Regulatory Asset, Noncurrent	35,040		35,381
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent	6,403		6,474
Disposal Group, Assets, Defined Benefit Plan, Noncurrent	14,916		14,663
Disposal Group, Assets, Other Assets, Noncurrent	202		206
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	467,215		462,797
Disposal Group, Including Discontinued Operation, Accounts Payable, Current	802		702
Disposal Group, Liabilities, Contract with Customer, Refund Liability, Current	6,017		6,214
Disposal Group, Liabilities, Taxes Payable, Current	1,284		13
Disposal Group, Including Discontinued Operation, Other Liabilities, Current	1,349		1,401
Disposal Group, Including Discontinued Operation, Liabilities, Current	9,452		8,330
Disposal Group, Liabilities, Regulatory Liability for Income Taxes - net	32,327		31,575
Disposal Group, Liabilities, Regulatory Liability, Noncurrent	2,424		1,611
Disposal Group, Liabilities, Defined Benefit Plan, Noncurrent	3,988		3,976
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent	3,610		3,844
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	42,349		41,006
Income (Loss) from Individually Significant Component Disposed of or Held-for-Sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax	22,016	$ 19,932
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	2,676		727
Disposal Group, Assets, Energy Related Inventory	802		702
Disposal Group, Assets, Public Utilities, Inventory	1,121		1,045
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current	81		0
Disposal Group, Including Discontinued Operation, Assets, Current	4,680		2,474
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas	308,239		303,193
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Construction Work In Progress	1,287		1,085
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Accumulated Depreciation	(141,851)		(139,556)
Disposal Group, Assets, Regulatory Asset, Noncurrent	8,904		8,947
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent	0		0
Disposal Group, Assets, Defined Benefit Plan, Noncurrent	0		0
Disposal Group, Assets, Other Assets, Noncurrent	0		0
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	176,579		173,669
Disposal Group, Including Discontinued Operation, Accounts Payable, Current	802		702
Disposal Group, Liabilities, Contract with Customer, Refund Liability, Current	1,809		1,984
Disposal Group, Liabilities, Taxes Payable, Current	1,268		13
Disposal Group, Including Discontinued Operation, Other Liabilities, Current	541		589
Disposal Group, Including Discontinued Operation, Liabilities, Current	4,420		3,288
Disposal Group, Liabilities, Regulatory Liability for Income Taxes - net	5,418		4,981
Disposal Group, Liabilities, Regulatory Liability, Noncurrent	1,850		1,214
Disposal Group, Liabilities, Defined Benefit Plan, Noncurrent	4,546		4,525
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent	1,110		1,194
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	12,924		11,914
Income (Loss) from Individually Significant Component Disposed of or Held-for-Sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax	9,775	10,104
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	2,642		4,881
Disposal Group, Assets, Energy Related Inventory	2,704		3,791
Disposal Group, Assets, Public Utilities, Inventory	3,944		4,406
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current	1,928		22
Disposal Group, Including Discontinued Operation, Assets, Current	11,218		13,100
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Natural Gas	379,770		376,309
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Construction Work In Progress	2,154		1,874
Disposal Group, Assets, Public Utilities, Property, Plant, and Equipment, Accumulated Depreciation	(138,945)		(136,832)
Disposal Group, Assets, Regulatory Asset, Noncurrent	23,412		23,682
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent	0		0
Disposal Group, Assets, Defined Benefit Plan, Noncurrent	19,724		19,499
Disposal Group, Assets, Other Assets, Noncurrent	202		206
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	286,317		284,738
Disposal Group, Including Discontinued Operation, Accounts Payable, Current	0		0
Disposal Group, Liabilities, Contract with Customer, Refund Liability, Current	4,208		4,230
Disposal Group, Liabilities, Taxes Payable, Current	16		0
Disposal Group, Including Discontinued Operation, Other Liabilities, Current	808		812
Disposal Group, Including Discontinued Operation, Liabilities, Current	5,032		5,042
Disposal Group, Liabilities, Regulatory Liability for Income Taxes - net	26,909		26,594
Disposal Group, Liabilities, Regulatory Liability, Noncurrent	574		397
Disposal Group, Liabilities, Defined Benefit Plan, Noncurrent	1,188		1,197
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent	2,500		2,650
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	31,171		$ 30,838
Income (Loss) from Individually Significant Component Disposed of or Held-for-Sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax	$ 12,241	$ 9,828