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Basis of Presentation and Summary of Accounting Policies - Lease Accounting (Additional Information) (Details) | 12 Months Ended
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Feb. 02, 2019
Accounting Policies [Abstract] |
Rent expense recorded prior to minimum number of days before opening of store, in days | 30 days
Rent expense recorded prior to maximum number of days before opening of store, in days | 60 days

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- Definition Rent expense recorded prior to maximum number of days before opening of store + References No definition available. + Details
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- Definition Rent expense recorded prior to minimum number of days before opening of store + References No definition available. + Details
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Namespace Prefix: | tjx_
Data Type: | xbrli:durationItemType
Balance Type: | na
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- References No definition available. + Details
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Period Type: | duration