| Document and Entity Information | May 12, 2022 |
| Cover [Abstract] | |
| Entity Registrant Name | AVNET INC |
| Amendment Flag | false |
| Entity Central Index Key | 0000008858 |
| Document Type | 8-K |
| Document Period End Date | May 12, 2022 |
| Entity Incorporation State Country Code | NY |
| Entity File Number | 1-4224 |
| Entity Tax Identification Number | 11-1890605 |
| Entity Address, Address Line One | 2211 South 47th Street |
| Entity Address, City or Town | Phoenix |
| Entity Address, State or Province | AZ |
| Entity Address, Postal Zip Code | 85034 |
| City Area Code | (480) |
| Local Phone Number | 643-2000 |
| Security 12b Title | Common Stock, par value $1.00 per share |
| Trading Symbol | AVT |
| Security Exchange Name | NASDAQ |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
