Document Information Statement - shares	6 Months Ended
	Jul. 29, 2023	Aug. 30, 2023
Document Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jul. 29, 2023
Document Fiscal Year Focus	2024
Current Fiscal Year End Date	--02-03
Document Transition Report	false
Entity File Number	1-9595
Entity Registrant Name	BEST BUY CO., INC.
Entity Incorporation, State or Country Code	MN
Entity Address, Address Line One	7601 Penn Avenue South
Entity Address, City or Town	Richfield
Entity Address, State or Province	MN
Entity Tax Identification Number	41-0907483
Entity Address, Postal Zip Code	55423
City Area Code	612
Local Phone Number	291-1000
Title of 12(b) Security	Common Stock, $0.10 par value per share
Trading Symbol	BBY
Security Exchange Name	NYSE
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		217,638,155
Document Fiscal Period Focus	Q2
Entity Central Index Key	0000764478
Amendment Flag	false