Cover Page - USD ($)	12 Months Ended
	Jul. 03, 2021	Aug. 10, 2021	Dec. 24, 2020
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jul. 03, 2021
Current Fiscal Year End Date	--07-03
Document Transition Report	false
Entity File Number	1-6544
Entity Registrant Name	Sysco Corporation
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	74-1648137
Entity Address, Address Line One	1390 Enclave Parkway
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77077-2099
City Area Code	281
Local Phone Number	584-1390
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 Public Float			$ 35,407,391,982
Entity Common Stock, Shares Outstanding		512,081,796
Entity Shell Company	false
Documents Incorporated by Reference	Portions of the company’s 2021 Proxy Statement to be filed with the Securities and Exchange Commission no later than 120 days after the end of the fiscal year covered by this Form 10-K are incorporated by reference into Part III.
Entity Central Index Key	0000096021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false
Common Stock, $1.00 Par Value
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $1.00 Par Value
Trading Symbol	SYY
Security Exchange Name	NYSE
1.25% Notes due June 2023
Entity Information [Line Items]
Title of 12(b) Security	1.25% Notes due June 2023
Trading Symbol	SYY 23
Security Exchange Name	NYSE