Cover	6 Months Ended
	Aug. 29, 2020 shares
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Aug. 29, 2020
Document Transition Report	false
Entity File Number	0-20214
Entity Registrant Name	BED BATH & BEYOND INC
Entity Central Index Key	0000886158
Current Fiscal Year End Date	--02-27
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Incorporation, State or Country Code	NY
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
Title of 12(b) Security	Common stock, $.01 par value
Trading Symbol	BBBY
Security Exchange Name	NASDAQ
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
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	126,008,219