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Asset Retirement Obligations (Schedule of Regulatory Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	$ 5,005,976	$ 5,255,509
Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	1,178,900	1,107,600
Entergy Arkansas [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	1,743,848	1,700,110
Entergy Arkansas [Member] | Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	369,600	337,900
Entergy Louisiana [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	1,540,709	1,637,967
Entergy Louisiana [Member] | Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	348,500	323,200
Entergy Mississippi [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	455,714	525,847
Entergy Mississippi [Member] | Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	198,600	184,800
Entergy New Orleans [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	109,690	133,261
Entergy New Orleans [Member] | Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	56,800	62,500
Entergy Texas [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	510,806	549,708
Entergy Texas [Member] | Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	105,000	102,300
System Energy [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	601,185	426,494
System Energy [Member] | Removal Costs [Member]
Asset Retirement Obligations [Line Items]
Regulatory Asset, Noncurrent	$ 100,400	$ 96,900

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- Definition

Asset Retirement Obligations [Line Items]

+ References

No definition available.

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- Definition

Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 980
-SubTopic 340
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478742/980-340-50-1

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