v3.25.2
Cover - USD ($)
$ in Millions
12 Months Ended
Aug. 02, 2025
Sep. 25, 2025
Jan. 31, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Aug. 02, 2025    
Current Fiscal Year End Date --08-02    
Document Transition Report false    
Entity File Number 001-15723    
Entity Registrant Name UNITED NATURAL FOODS, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 05-0376157    
Entity Address, Address Line One 15 Park Row West,    
Entity Address, Address Line Two Suite 302,    
Entity Address, City or Town Providence,    
Entity Address, State or Province RI    
Entity Address, Postal Zip Code 02903    
City Area Code 401    
Local Phone Number 528-8634    
Title of 12(b) Security Common stock, par value $0.01    
Trading Symbol UNFI    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Public Float     $ 1,779
Entity Common Stock, Shares Outstanding (in shares)   60,652,401  
Documents Incorporated by Reference
Portions of the registrant’s definitive Proxy Statement for the Annual Meeting of Stockholders to be held on December 16, 2025 are incorporated herein by reference into Part III of this Annual Report on Form 10-K.
   
Entity Central Index Key 0001020859    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Amendment Flag false