Income Taxes (Schedule Of Estimated Tax Attributes Carryovers And Their Expiration Dates) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Capital Loss Carryforwards	$ 107,009	$ 28,876
Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Pre January 1, 2018	4,200,000
Operating Loss Carryforwards	13,800,000
Internal Revenue Service (IRS) [Member] | Entergy Arkansas [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Pre January 1, 2018	0
Operating Loss Carryforwards	500,000
Tax Credit Carryforward, Amount	10,000
Internal Revenue Service (IRS) [Member] | Entergy Louisiana [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Pre January 1, 2018	800,000
Operating Loss Carryforwards	2,800,000
Tax Credit Carryforward, Amount	16,900
Internal Revenue Service (IRS) [Member] | Entergy Mississippi [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Pre January 1, 2018	0
Operating Loss Carryforwards	10,800
Tax Credit Carryforward, Amount	3,900
Internal Revenue Service (IRS) [Member] | Entergy New Orleans [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Pre January 1, 2018	100,000
Operating Loss Carryforwards	$ 17,700
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2037
Tax Credit Carryforward, Amount	$ 16,100
Internal Revenue Service (IRS) [Member] | Entergy Texas [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Pre January 1, 2018	0
Operating Loss Carryforwards	1,800,000
Tax Credit Carryforward, Amount	800
Internal Revenue Service (IRS) [Member] | System Energy [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Pre January 1, 2018	0
Operating Loss Carryforwards	100,000
Tax Credit Carryforward, Amount	4,800
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	3,900,000
Operating Loss Carryforwards, No Expiration	11,100,000
Deferred Tax Assets, Charitable Contribution Carryforwards	523,600
State and Local Jurisdiction [Member] | Entergy Arkansas [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	400,000
Tax Credit Carryforward, Amount	0
State and Local Jurisdiction [Member] | Entergy Louisiana [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	5,700,000
Tax Credit Carryforward, Amount	0
State and Local Jurisdiction [Member] | Entergy Mississippi [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	100,000
Tax Credit Carryforward, Amount	8,000
State and Local Jurisdiction [Member] | Entergy New Orleans [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	200,000
Tax Credit Carryforward, Amount	0
State and Local Jurisdiction [Member] | Entergy Texas [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 1,000
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2028
Tax Credit Carryforward, Amount	$ 1,600
State and Local Jurisdiction [Member] | System Energy [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	200,000
Tax Credit Carryforward, Amount	19,000
Other Federal And State [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Amount	$ 124,900
Minimum [Member] | Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2028
Minimum [Member] | Internal Revenue Service (IRS) [Member] | Entergy Louisiana [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2035
Minimum [Member] | State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2028
Minimum [Member] | State and Local Jurisdiction [Member] | Entergy Arkansas [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2028
Minimum [Member] | State and Local Jurisdiction [Member] | Entergy Mississippi [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2040
Tax Credit Carryforward, Expiration Date	Dec. 31, 2024
Minimum [Member] | State and Local Jurisdiction [Member] | Entergy Texas [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2027
Minimum [Member] | State and Local Jurisdiction [Member] | System Energy [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2024
Minimum [Member] | Other Federal And State [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2024
Minimum [Member] | Other Federal And State [Member] | Entergy Arkansas [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2038
Minimum [Member] | Other Federal And State [Member] | Entergy Louisiana [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2035
Minimum [Member] | Other Federal And State [Member] | Entergy Mississippi [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2038
Minimum [Member] | Other Federal And State [Member] | Entergy New Orleans [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2037
Minimum [Member] | Other Federal And State [Member] | Entergy Texas [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2039
Minimum [Member] | Other Federal And State [Member] | System Energy [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2029
Minimum [Member] | Other Federal [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2024
Maximum [Member] | Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2037
Maximum [Member] | Internal Revenue Service (IRS) [Member] | Entergy Louisiana [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2037
Maximum [Member] | State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2042
Maximum [Member] | State and Local Jurisdiction [Member] | Entergy Arkansas [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2032
Maximum [Member] | State and Local Jurisdiction [Member] | Entergy Mississippi [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2042
Tax Credit Carryforward, Expiration Date	Dec. 31, 2026
Maximum [Member] | State and Local Jurisdiction [Member] | Entergy Texas [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2033
Maximum [Member] | State and Local Jurisdiction [Member] | System Energy [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2027
Maximum [Member] | Other Federal And State [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2043
Maximum [Member] | Other Federal And State [Member] | Entergy Arkansas [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2043
Maximum [Member] | Other Federal And State [Member] | Entergy Louisiana [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2043
Maximum [Member] | Other Federal And State [Member] | Entergy Mississippi [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2043
Maximum [Member] | Other Federal And State [Member] | Entergy New Orleans [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2043
Maximum [Member] | Other Federal And State [Member] | Entergy Texas [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2043
Maximum [Member] | Other Federal And State [Member] | System Energy [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2043
Maximum [Member] | Other Federal [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Expiration Date	Dec. 31, 2037