Variable Interest Entities (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Variable Interest Entity [Line Items]
Assets	$ 79,002,618		$ 71,890,730
Entergy New Orleans [Member]
Variable Interest Entity [Line Items]
Assets	2,089,670		2,058,680
Entergy Louisiana [Member]
Variable Interest Entity [Line Items]
Assets	36,830,407		33,337,570
Equity, Attributable to Noncontrolling Interest	$ 40,356		40,207
Entergy Louisiana [Member] \| Restoration Law Trust I [Member]
Variable Interest Entity [Line Items]
LURC's beneficial interest in the storm trust, percentage	1.00%
Entergy Louisiana [Member] \| Restoration Law Trust I [Member] \| Entergy Finance Company [Member]
Variable Interest Entity [Line Items]
Equity, Attributable to Noncontrolling Interest	$ 27,100		27,100
Entergy Louisiana [Member] \| Restoration Law Trust I [Member] \| Entergy Finance Company [Member]
Variable Interest Entity [Line Items]
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value	$ 2,600,000		2,700,000
Entergy Louisiana [Member] \| Restoration Law Trust II [Member]
Variable Interest Entity [Line Items]
LURC's beneficial interest in the storm trust, percentage	1.00%
Entergy Louisiana [Member] \| Restoration Law Trust II [Member] \| Entergy Finance Company [Member]
Variable Interest Entity [Line Items]
Equity, Attributable to Noncontrolling Interest	$ 13,300		13,100
Entergy Louisiana [Member] \| Restoration Law Trust II [Member] \| Entergy Finance Company [Member]
Variable Interest Entity [Line Items]
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value	1,300,000		1,300,000
System Energy [Member]
Variable Interest Entity [Line Items]
Assets	5,227,033		5,008,405
System Energy [Member] \| Grand Gulf [Member]
Variable Interest Entity [Line Items]
Payments on lease including interest	8,600	$ 8,600
Entergy Arkansas [Member]
Variable Interest Entity [Line Items]
Assets	17,638,405		16,470,902
Equity, Attributable to Noncontrolling Interest	11,081		10,818
Entergy Arkansas [Member] \| AR Searcy Partnership, LLC [Member]
Variable Interest Entity [Line Items]
Assets	123,400		124,400
Ownership Interest in Partnership, Carrying Value	111,900		113,100
Entergy Mississippi [Member]
Variable Interest Entity [Line Items]
Assets	9,864,480		8,476,474
Equity, Attributable to Noncontrolling Interest	5,129		5,066
Entergy Mississippi [Member] \| MS Sunflower Partnership, LLC [Member]
Variable Interest Entity [Line Items]
Assets	149,800		154,500
Ownership Interest in Partnership, Carrying Value	$ 134,000		$ 134,900