Variable Interest Entities (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Variable Interest Entity [Line Items]
Assets	$ 59,203,276	$ 59,203,276		$ 58,595,191
Entergy New Orleans [Member]
Variable Interest Entity [Line Items]
Assets	2,237,327	2,237,327		2,212,401
Entergy Louisiana [Member]
Variable Interest Entity [Line Items]
Assets	29,448,873	29,448,873		28,144,555
Members' Equity Attributable to Noncontrolling Interest	$ 46,396	$ 46,396		31,735
Entergy Louisiana [Member] | Restoration Law Trust I (storm trust I) [Member]
Variable Interest Entity [Line Items]
LURC's beneficial interest in the storm trust, percentage	1.00%	1.00%
Entergy Louisiana [Member] | Restoration Law Trust II (storm trust II) [Member]
Variable Interest Entity [Line Items]
LURC's beneficial interest in the storm trust, percentage	1.00%	1.00%
Entergy Louisiana [Member] | Entergy Finance Company [Member] | Restoration Law Trust I (storm trust I) [Member]
Variable Interest Entity [Line Items]
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value	$ 3,100,000	$ 3,100,000		3,200,000
Members' Equity Attributable to Noncontrolling Interest	31,800	31,800		31,700
Entergy Louisiana [Member] | Entergy Finance Company [Member] | Restoration Law Trust II (storm trust II) [Member]
Variable Interest Entity [Line Items]
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value	1,500,000	1,500,000
Members' Equity Attributable to Noncontrolling Interest	14,600	14,600
System Energy [Member]
Variable Interest Entity [Line Items]
Assets	4,436,532	$ 4,436,532		4,214,146
System Energy [Member] | Grand Gulf [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage		11.50%
Payments on lease, including interest		$ 8,600	$ 8,600
Entergy Arkansas [Member]
Variable Interest Entity [Line Items]
Assets	13,280,430	13,280,430		13,006,576
Members' Equity Attributable to Noncontrolling Interest	26,092	26,092		27,825
Entergy Arkansas [Member] | AR Searcy Partnership, LLC
Variable Interest Entity [Line Items]
Assets	137,600	137,600		138,300
Ownership Interest in Partnership, Carrying Value	110,000	110,000		109,000
Entergy Mississippi [Member]
Variable Interest Entity [Line Items]
Assets	6,049,464	6,049,464		6,078,764
Public Utilities, Requested Rate Increase (Decrease), Amount	39,800
Entergy Mississippi [Member] | MS Sunflower Partnership, LLC
Variable Interest Entity [Line Items]
Assets	152,600	152,600		154,500
Ownership Interest in Partnership, Carrying Value	$ 117,800	$ 117,800		$ 117,200