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Document and Entity Information Document
Dec. 10, 2024
Document Information [Line Items]  
Entity Central Index Key 0000043920
Document Type 8-K
Entity Registrant Name GREIF, INC.
City Area Code 740
Entity Incorporation, State or Country Code DE
Document Period End Date Dec. 10, 2024
Entity File Number 001-00566
Entity Tax Identification Number 31-4388903
Entity Address, Postal Zip Code 43015
Local Phone Number 549-6000
Entity Emerging Growth Company false
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Amendment Flag false
Entity Address, Address Line One 425 Winter Road
Entity Address, City or Town Delaware
Entity Address, State or Province OH
Common Class A [Member]  
Document Information [Line Items]  
Title of 12(b) Security Class A Common Stock
Trading Symbol GEF
Security Exchange Name NYSE
Common Class B [Member]  
Document Information [Line Items]  
Title of 12(b) Security Class B Common Stock
Trading Symbol GEF-B
Security Exchange Name NYSE