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Accrued Expenses and Other Liabilities, Current and Long Term - Additional Information (Details)	12 Months Ended
	Jan. 30, 2021
Payables and Accruals [Abstract]
Percentage of other current liability individual item which makes up current liabilities	5.00%

X

- Definition

Percentage Of Other Current Liability Individual Item Which Makes Up Current Liabilities

+ References

No definition available.

+ Details

Name:	tjx_PercentageOfOtherCurrentLiabilityIndividualItemWhichMakesUpCurrentLiabilities
Namespace Prefix:	tjx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_PayablesAndAccrualsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration