Cover - USD ($) $ in Billions	12 Months Ended
	Jan. 29, 2022	Mar. 28, 2022	Jul. 31, 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	1-4908
Entity Registrant Name	The TJX Companies, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	04-2207613
Entity Address, Address Line One	770 Cochituate Road
Entity Address, City or Town	Framingham
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01701
City Area Code	508
Local Phone Number	390-1000
Title of 12(b) Security	Common Stock, par value $1.00 per share
Trading Symbol	TJX
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			$ 82.7
Entity Common Stock, Shares Outstanding		1,175,228,119
Documents Incorporated by Reference	Portions of the Proxy Statement to be filed with the Securities and Exchange Commission in connection with the Annual Meeting of Shareholders to be held on June 7, 2022 (Part III).
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Central Index Key	0000109198