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v3.20.1

Segment Information - Percentages of Consolidated Revenues by Major Product Category (Detail) | 12 Months Ended
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Feb. 01, 2020 | Feb. 02, 2019 | Feb. 03, 2018
Segment Reporting Information [Line Items] |  |  |
Revenue percentage | 100.00% | 100.00% | 100.00%
Clothing including footwear |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue percentage | 51.00% | 52.00% | 52.00%
Jewelry and accessories |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue percentage | 16.00% | 15.00% | 15.00%
Home fashions |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue percentage | 33.00% | 33.00% | 33.00%

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- Definition Segment Reporting Information Sales Revenue Net Percentage + References No definition available. + Details
Name: | tjx_SegmentReportingInformationSalesRevenueNetPercentage
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_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_ProductOrServiceAxis=tjx_ApparelClothingIncludingFootwearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_ProductOrServiceAxis=tjx_ApparelJewelryAndAccessoriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_ProductOrServiceAxis=tjx_HomeFashionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |