Variable Interest Entities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jun. 30, 2023	Mar. 31, 2023
Variable Interest Entities (Textual) [Abstract]
Assets	$ 59,703,396	$ 58,595,191	$ 59,454,242
System Energy [Member]
Variable Interest Entities (Textual) [Abstract]
Assets	4,312,363	4,214,146
System Energy [Member] | Grand Gulf [Member]
Variable Interest Entities (Textual) [Abstract]
Payments on lease including interest	17,200	17,200	$ 17,200
Entergy Arkansas [Member]
Variable Interest Entities (Textual) [Abstract]
Assets	13,672,858	13,006,576
Members' Equity Attributable to Noncontrolling Interest	21,599	27,825
Members' Equity Attributable to Noncontrolling Interest	21,599	27,825
Entergy Arkansas [Member] | AR Searcy Partnership, LLC [Member]
Variable Interest Entities (Textual) [Abstract]
Assets	134,000	138,300
Ownership Interest in Partnership, Carrying Value	111,200	109,000
Members' Equity Attributable to Noncontrolling Interest	21,599	27,825
Members' Equity Attributable to Noncontrolling Interest	21,599	27,825
Entergy Mississippi [Member]
Variable Interest Entities (Textual) [Abstract]
Assets	6,228,006	6,078,764
Members' Equity Attributable to Noncontrolling Interest	18,753	3,347
Members' Equity Attributable to Noncontrolling Interest	18,753	3,347
Entergy Mississippi [Member] | MS Sunflower Partnership, LLC [Member]
Variable Interest Entities (Textual) [Abstract]
Assets	163,200	154,500
Ownership Interest in Partnership, Carrying Value	128,400	117,200
Members' Equity Attributable to Noncontrolling Interest	18,753	3,347
Members' Equity Attributable to Noncontrolling Interest	18,753	3,347
Entergy Louisiana [Member]
Variable Interest Entities (Textual) [Abstract]
Assets	29,109,470	28,144,555
LURC's beneficial interest in the storm trust, percentage				1.00%	1.00%
Members' Equity Attributable to Noncontrolling Interest	45,107	31,735
Members' Equity Attributable to Noncontrolling Interest	$ 45,107	31,735
LURC's beneficial interest in the storm trust, percentage				1.00%	1.00%
Entergy Louisiana [Member] | Restoration Law Trust I [Member]
Variable Interest Entities (Textual) [Abstract]
LURC's beneficial interest in the storm trust, percentage	1.00%
LURC's beneficial interest in the storm trust, percentage	1.00%
Entergy Louisiana [Member] | Restoration Law Trust II [Member]
Variable Interest Entities (Textual) [Abstract]
LURC's beneficial interest in the storm trust, percentage	1.00%
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 Entities (Textual) [Abstract]
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value	$ 3,000,000	3,200,000
Members' Equity Attributable to Noncontrolling Interest	30,500	31,700
Members' Equity Attributable to Noncontrolling Interest	30,500	$ 31,700
Entergy Louisiana [Member] | Entergy Finance Company [Member] | Restoration Law Trust II [Member]
Variable Interest Entities (Textual) [Abstract]
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value	1,500,000
Members' Equity Attributable to Noncontrolling Interest	14,600
Members' Equity Attributable to Noncontrolling Interest	$ 14,600