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Basis of Presentation and Summary of Accounting Policies - Lease Accounting (Additional Information) (Details)	12 Months Ended
	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

X

- Definition

Rent expense recorded prior to maximum number of days before opening of store

+ References

No definition available.

+ Details

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X

- 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_
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X

- References

No definition available.

+ Details

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