Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
$ in Millions
12 Months Ended
Jan. 02, 2021
Feb. 26, 2021
Jun. 27, 2020
Cover [Abstract]      
Document Type 10-K/A    
Document Annual Report true    
Document Period End Date Jan. 02, 2021    
Current Fiscal Year End Date --01-02    
Document Transition Report false    
Entity File Number 001-38854    
Entity Registrant Name KONTOOR BRANDS, INC.    
Entity Incorporation, State or Country Code NC    
Entity Tax Identification Number 83-2680248    
Entity Address, Address Line One 400 N. Elm Street    
Entity Address, City or Town Greensboro    
Entity Address, State or Province NC    
Entity Address, Postal Zip Code 27401    
City Area Code 336    
Local Phone Number 332-3400    
Title of 12(b) Security Common Stock, no par value    
Entity Trading Symbol KTB    
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    
Entity Shell Company false    
Entity Public Float     $ 940
Entity Common Stock, Shares Outstanding   57,372,046  
Entity Central Index Key 0001760965    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Amendment Flag false