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Financial Instruments - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	May 01, 2021	May 02, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Hedge of diesel fuel requirement, remainder of fiscal year 2022	48.00%
Hedge of diesel fuel requirement, first three months of fiscal year 2023	40.00%
Foreign currency exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain on derivatives settlement		$ 25
Term of derivative contracts	30 days

X

- Definition

Hedge Diesel Fuel Requirement, Remainder of Fiscal Year

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

X

- Definition

Hedge Diesel Fuel Requirement, Second Year

+ References

No definition available.

+ Details

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

X

- Definition

Amount of increase in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959

+ Details

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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

No definition available.

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X

- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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X

- Details

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