Business Segment Information Segment Financial Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Financial Information
Interest expense	$ 834,694	$ 785,663	$ 742,425
Income Tax Expense (Benefit)	191,374	(121,506)	(169,825)
Consolidated net income	1,118,719	1,406,653	1,258,244
Total assets	59,454,242	58,239,212
Eliminations [Member]
Segment Financial Information
Operating revenues	(29)	(25)	(52)
Depreciation, amortization, & decommissioning	0	0	0
Interest and investment income	(141,880)	(159,943)	(182,589)
Interest expense	(14,258)	(32,350)	(54,995)
Income Tax Expense (Benefit)	0	0	0
Consolidated net income	(127,622)	(127,594)	(127,594)
Total assets	(2,083,226)	(2,053,951)	(2,502,733)
Cash paid for long-lived asset additions	0	0	0
Asset Write-Offs, Impairments, And Related Charges	0	0	0
Utility [Member]
Segment Financial Information
Operating revenues	11,044,674	9,170,714	9,583,985
Depreciation, amortization, & decommissioning	1,823,389	1,685,138	1,493,167
Interest and investment income	442,817	299,004	289,570
Interest expense	692,004	648,851	589,395
Income Tax Expense (Benefit)	264,209	(282,311)	19,634
Consolidated net income	1,488,487	1,816,354	1,425,643
Total assets	59,733,625	55,940,153	49,557,664
Cash paid for long-lived asset additions	6,409,855	5,102,322	4,527,045
Asset Write-Offs, Impairments, And Related Charges	0	0	0
Entergy Wholesale Commodities [Member]
Segment Financial Information
Operating revenues	698,164	942,869	1,294,719
Depreciation, amortization, & decommissioning	164,602	306,974	384,707
Interest and investment income	118,597	234,194	414,636
Interest expense	13,334	22,432	29,450
Income Tax Expense (Benefit)	(25,381)	104,937	(161,295)
Consolidated net income	(120,689)	(62,763)	148,870
Total assets	1,242,675	3,800,378	4,154,961
Cash paid for long-lived asset additions	12,100	54,455	104,300
Asset Write-Offs, Impairments, And Related Charges	263,625	26,623	290,027
All Other [Member]
Segment Financial Information
Operating revenues	87	78	21
Depreciation, amortization, & decommissioning	2,706	2,835	2,944
Interest and investment income	10,932	19,563	26,295
Interest expense	143,614	146,730	178,575
Income Tax Expense (Benefit)	(47,454)	55,868	(28,164)
Consolidated net income	(121,457)	(219,344)	(188,675)
Total assets	561,168	552,632	514,020
Cash paid for long-lived asset additions	157	84	160
Asset Write-Offs, Impairments, And Related Charges	0	0	0
Entergy Corporation Consolidated
Segment Financial Information
Operating revenues	11,742,896	10,113,636	10,878,673
Depreciation, amortization, & decommissioning	1,990,697	1,994,947	1,880,818
Interest and investment income	430,466	392,818	547,912
Interest expense	834,694	785,663	742,425
Income Tax Expense (Benefit)	191,374	(121,506)	(169,825)
Consolidated net income	1,118,719	1,406,653	1,258,244
Total assets	59,454,242	58,239,212	51,723,912
Cash paid for long-lived asset additions	6,422,112	5,156,861	4,631,505
Asset Write-Offs, Impairments, And Related Charges	$ 263,625	$ 26,623	$ 290,027