Variable Interest Entities (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Variable Interest Entity [Line Items]
Assets	$ 69,848,407		$ 64,790,032
Entergy New Orleans [Member]
Variable Interest Entity [Line Items]
Assets	2,014,874		2,223,153
Entergy Louisiana [Member]
Variable Interest Entity [Line Items]
Assets	32,461,730		30,348,550
Equity, Attributable to Noncontrolling Interest	$ 42,854		42,706
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	$ 28,500		28,800
Entergy Louisiana [Member] | Restoration Law Trust I [Member] | Entergy Finance Company [Member]
Variable Interest Entity [Line Items]
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value	$ 2,800,000		2,900,000
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	$ 14,400		13,900
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		1,400,000
System Energy [Member]
Variable Interest Entity [Line Items]
Assets	4,903,004		4,642,474
System Energy [Member] | Grand Gulf [Member]
Variable Interest Entity [Line Items]
Payments on lease including interest	17,200	$ 17,200
Entergy Arkansas [Member]
Variable Interest Entity [Line Items]
Assets	16,368,874		15,073,983
Equity, Attributable to Noncontrolling Interest	11,420		15,168
Entergy Arkansas [Member] | AR Searcy Partnership, LLC [Member]
Variable Interest Entity [Line Items]
Assets	126,700		129,700
Ownership Interest in Partnership, Carrying Value	114,100		113,200
Entergy Mississippi [Member]
Variable Interest Entity [Line Items]
Assets	8,024,548		6,988,970
Equity, Attributable to Noncontrolling Interest	5,377		8,202
Entergy Mississippi [Member] | MS Sunflower Partnership, LLC [Member]
Variable Interest Entity [Line Items]
Assets	155,400		157,800
Ownership Interest in Partnership, Carrying Value	$ 136,000		$ 132,700