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Document and Entity Information
May 16, 2024
Cover [Abstract]  
Document Type 8-K
Document Period End Date May 16, 2024
Entity Registrant Name Entergy Mississippi, LLC
Entity Incorporation State Country Code TX
Entity File Number 1-31508
Entity Tax Identification Number 83-1950019
Entity Address Address Line 1 308 East Pearl Street
Entity Address City Or Town Jackson
Entity Address State Or Province MS
Entity Address Postal Zip Code 39201
City Area Code 601
Local Phone Number 368-5000
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Mortgage Bonds, 4.90% Series due October 2066
Trading Symbol EMP
Security Exchange Name NYSE
Entity Emerging Growth Company false
Entity Central Index Key 0000066901
Amendment Flag false