Document and Entity Information - shares	6 Months Ended
	Dec. 30, 2017	Jan. 19, 2018
Document Entity Information [Abstract]
Entity Registrant Name	SYSCO CORP
Entity Central Index Key	0000096021
Current Fiscal Year End Date	--06-30
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Dec. 30, 2017
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		521,918,747