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Segment Information - Additional Information (Detail) | 12 Months Ended
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Jan. 30, 2016 Segment
Segment Reporting Information [Line Items] |
Number of business segments | 4
TJX Canada And International |
Segment Reporting Information [Line Items] |
Percentage of segment sales | 23.00%
Percentage of segment profit | 17.00%
Percentage of segment consolidated assets | 23.00%
United States |
Segment Reporting Information [Line Items] |
Number of business segments | 2

X
- Definition Percentage Of Segment Consolidated Assets + References No definition available. + Details
Name: | tjx_PercentageOfSegmentConsolidatedAssets
Namespace Prefix: | tjx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage Of Segment Profit + References No definition available. + Details
Name: | tjx_PercentageOfSegmentProfit
Namespace Prefix: | tjx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage Of Segment Sales + References No definition available. + Details
Name: | tjx_PercentageOfSegmentSales
Namespace Prefix: | tjx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
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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_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=tjx_TJXCanadaAndInternationalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |