Variable Interest Entities (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Jun. 30, 2024	Mar. 31, 2023
Variable Interest Entity [Line Items]
Assets	$ 64,790,032	$ 59,703,396	$ 58,595,191
System Energy [Member]
Variable Interest Entity [Line Items]
Assets	4,642,474	4,312,363
System Energy [Member] | Grand Gulf [Member]
Variable Interest Entity [Line Items]
Payments on lease including interest	17,200	17,200	$ 17,200
Entergy Arkansas [Member]
Variable Interest Entity [Line Items]
Assets	15,073,983	13,672,858
Equity, Attributable to Noncontrolling Interest	15,168	21,599
Entergy Arkansas [Member] | AR Searcy Partnership, LLC [Member]
Variable Interest Entity [Line Items]
Assets	129,700	134,000
Ownership Interest in Partnership, Carrying Value	113,200	111,200
Entergy Mississippi [Member]
Variable Interest Entity [Line Items]
Assets	6,988,970	6,228,006
Equity, Attributable to Noncontrolling Interest	8,202	18,753
Entergy Mississippi [Member] | MS Sunflower Partnership, LLC [Member]
Variable Interest Entity [Line Items]
Assets	157,800	163,200
Ownership Interest in Partnership, Carrying Value	132,700	128,400
Entergy Louisiana [Member]
Variable Interest Entity [Line Items]
Assets	30,348,550	29,109,470
LURC's beneficial interest in the storm trust, percentage				1.00%	1.00%
Equity, Attributable to Noncontrolling Interest	$ 42,706	45,107
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 II [Member]
Variable Interest Entity [Line Items]
LURC's beneficial interest in the storm trust, percentage	1.00%
Entergy Louisiana [Member] | Entergy Finance Company [Member] | Restoration Law Trust I [Member]
Variable Interest Entity [Line Items]
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value	$ 2,900,000	3,000,000
Equity, Attributable to Noncontrolling Interest	28,800	30,500
Entergy Louisiana [Member] | Entergy Finance Company [Member] | Restoration Law Trust II [Member]
Variable Interest Entity [Line Items]
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value	1,400,000	1,500,000
Equity, Attributable to Noncontrolling Interest	$ 13,900	$ 14,600