| Document and Entity Information | Dec. 14, 2023 |
| Cover [Abstract] | |
| Entity Registrant Name | JABIL INC |
| Amendment Flag | false |
| Entity Central Index Key | 0000898293 |
| Document Type | 8-K |
| Document Period End Date | Dec. 14, 2023 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-14063 |
| Entity Tax Identification Number | 38-1886260 |
| Entity Address, Address Line One | 10800 Roosevelt Boulevard North |
| Entity Address, City or Town | St. Petersburg |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33716 |
| City Area Code | (727) |
| Local Phone Number | 577-9749 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $0.001 par value per share |
| Trading Symbol | JBL |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
