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Document and Entity Information
Sep. 15, 2022
Entity Listings [Line Items]  
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 15, 2022
Entity Registrant Name SYLVAMO CORP.
Entity Incorporation, State or Country Code DE
Entity File Number 001-40718
Entity Tax Identification Number 86-2596371
Entity Address, Address Line One 6400 Poplar Avenue
Entity Address, City or Town Memphis
Entity Address, State or Province TN
Entity Address, Postal Zip Code 38197
City Area Code 901
Local Phone Number 519-8000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Entity Central Index Key 0001856485
Common Stock [Member]  
Entity Listings [Line Items]  
Title of 12(b) Security Common Stock, $1.00 per share par value
Trading Symbol SLVM
Security Exchange Name NYSE
Preferred Stock Purchase Rights [Member]  
Entity Listings [Line Items]  
Title of 12(b) Security Preferred Stock Purchase Rights
Security Exchange Name NYSE