v3.20.2
Cover
Jul. 22, 2020
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jul. 22, 2020
Entity File Number 1-37830
Entity Registrant Name Lamb Weston Holdings, Inc.
Entity Central Index Key 0001679273
Entity Tax Identification Number 61-1797411
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 599 S. Rivershore Lane
Entity Address, City or Town Eagle
Entity Address, State or Province ID
Entity Address, Postal Zip Code 83616
City Area Code 208
Local Phone Number 938-1047
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $1.00 par value
Trading Symbol LW
Security Exchange Name NYSE
Entity Emerging Growth Company false