Variable Interest Entities (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Mar. 31, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Assets	$ 60,552,147			$ 58,595,191
Entergy New Orleans [Member]
Variable Interest Entity [Line Items]
Assets	2,232,256			2,212,401
Entergy Louisiana [Member]
Variable Interest Entity [Line Items]
Assets	29,991,991			28,144,555
Members' Equity Attributable to Noncontrolling Interest	$ 47,214			31,735
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%
Entergy Louisiana [Member] | Restoration Law Trust I
Variable Interest Entity [Line Items]
LURC's beneficial interest in the storm trust, percentage	1.00%
Entergy Louisiana [Member] | Restoration Law Trust II
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 II (storm trust II) [Member]
Variable Interest Entity [Line Items]
Members' Equity Attributable to Noncontrolling Interest			$ 14,600
Entergy Louisiana [Member] | Entergy Finance Company [Member] | Restoration Law Trust I
Variable Interest Entity [Line Items]
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value	$ 3,000,000			3,200,000
Members' Equity Attributable to Noncontrolling Interest	32,100			31,700
Entergy Louisiana [Member] | Entergy Finance Company [Member] | Restoration Law Trust II
Variable Interest Entity [Line Items]
Redeemable Noncontrolling Interest, Equity, Preferred, Fair Value	1,500,000
Members' Equity Attributable to Noncontrolling Interest	15,100
System Energy [Member]
Variable Interest Entity [Line Items]
Assets	$ 4,260,532			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	$ 17,200	$ 17,200
Entergy Arkansas [Member]
Variable Interest Entity [Line Items]
Assets	13,521,580			13,006,576
Members' Equity Attributable to Noncontrolling Interest	23,675			27,825
Entergy Arkansas [Member] | AR Searcy Partnership, LLC
Variable Interest Entity [Line Items]
Assets	135,400			138,300
Ownership Interest in Partnership, Carrying Value	110,600			109,000
Entergy Mississippi [Member]
Variable Interest Entity [Line Items]
Assets	6,236,550			6,078,764
Entergy Mississippi [Member] | MS Sunflower Partnership, LLC
Variable Interest Entity [Line Items]
Assets	164,000			154,500
Ownership Interest in Partnership, Carrying Value	$ 127,200			$ 117,200