Cover - USD ($)	12 Months Ended
	Jan. 29, 2022	Mar. 10, 2022	Jul. 30, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jan. 29, 2022
Current Fiscal Year End Date	--01-29
Document Transition Report	false
Entity File Number	001-38559
Entity Registrant Name	BJ’S WHOLESALE CLUB HOLDINGS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	45-2936287
Entity Address, Address Line One	25 Research Drive
Entity Address, City or Town	Westborough
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01581
City Area Code	774
Local Phone Number	512-7400
Title of 12(b) Security	Common Stock, par value $0.01
Trading Symbol	BJ
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 6,900,000,000
Entity Common Stock, Shares Outstanding		135,289,504
Entity Central Index Key	0001531152
Amendment Flag	false
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2021