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Leases - Additional Information (Details)	12 Months Ended
	Feb. 03, 2024 store
TJX U.S and Canada
Lessee, Lease, Description [Line Items]
Operating leases, term	10 years
Number of extension periods	1
Minimum | TJX U.S and Canada
Lessee, Lease, Description [Line Items]
Operating lease, option to extend	2 years
Minimum | Europe
Lessee, Lease, Description [Line Items]
Operating leases, term	10 years
Maximum | TJX U.S and Canada
Lessee, Lease, Description [Line Items]
Operating lease, option to extend	10 years
Maximum | Europe
Lessee, Lease, Description [Line Items]
Operating leases, term	15 years

X

- Definition

Lessee, Operating Lease, Extension Term

+ References

No definition available.

+ Details

Name:	tjx_LesseeOperatingLeaseExtensionTerm
Namespace Prefix:	tjx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Lessee, Operating Lease, Minimum Number Of Extension Periods

+ References

No definition available.

+ Details

Name:	tjx_LesseeOperatingLeaseMinimumNumberOfExtensionPeriods
Namespace Prefix:	tjx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-3

+ Details

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

X

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-3

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=srt_EuropeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: