| Document and Entity Information | Feb. 06, 2023 |
| Cover [Abstract] | |
| Entity Registrant Name | BED BATH & BEYOND INC |
| Amendment Flag | false |
| Entity Central Index Key | 0000886158 |
| Document Type | 8-K |
| Document Period End Date | Feb. 06, 2023 |
| Entity Incorporation State Country Code | NY |
| Entity File Number | 0-20214 |
| Entity Tax Identification Number | 11-2250488 |
| Entity Address, Address Line One | 650 Liberty Avenue |
| Entity Address, City or Town | Union |
| Entity Address, State or Province | NJ |
| Entity Address, Postal Zip Code | 07083 |
| City Area Code | (908) |
| Local Phone Number | 688-0888 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common stock, $0.01 par value |
| Trading Symbol | BBBY |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
