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Financial Instruments - Additional Information (Detail) | 9 Months Ended
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Oct. 31, 2015
Derivative Instruments, Gain (Loss) [Line Items] |
Hedge of diesel fuel requirement, remainder of fiscal year 2016 | 58.00%
Hedge of diesel fuel requirement, fiscal year 2017 | 39.00%

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- Definition Hedge Diesel Fuel Requirement, Remainder of Fiscal Year + References No definition available. + Details
Name: | tjx_HedgeDieselFuelRequirementRemainderOfFiscalYear
Namespace Prefix: | tjx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Hedge Diesel Fuel Requirement, Second Year + References No definition available. + Details
Name: | tjx_HedgeDieselFuelRequirementSecondYear
Namespace Prefix: | tjx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- 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. + Details
Name: | us-gaap_DerivativeInstrumentsGainLossLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration