v3.10.0.1
Document and Entity Information - shares
6 Months Ended
Dec. 29, 2018
Jan. 18, 2019
Document Entity Information [Abstract]    
Entity Registrant Name SYSCO CORP  
Entity Central Index Key 0000096021  
Current Fiscal Year End Date --06-29  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Dec. 29, 2018  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   513,462,661
Entity Emerging Growth Company false  
Entity Small Business false