| Cover | Nov. 19, 2019 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 19, 2019 |
| Entity File Number | 1-4224 |
| Entity Registrant Name | AVNET, INC. |
| Entity Central Index Key | 0000008858 |
| Entity Tax Identification Number | 11-1890605 |
| Entity Incorporation, State or Country Code | NY |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock, par value $1.00 per share |
| Trading Symbol | AVT |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
