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Commitments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Jan. 31, 2015 | Feb. 01, 2014 | Feb. 02, 2013 | Jan. 28, 2012
Commitments [Line Items] |  |  |  |
Rental expense under operating leases for continuing operations | $ 1,321.6 us-gaap_LeaseAndRentalExpense | $ 1,238.2 us-gaap_LeaseAndRentalExpense | $ 1,171.6 us-gaap_LeaseAndRentalExpense |
Contingent rent paid | 15.2 us-gaap_OperatingLeasesRentExpenseContingentRentals | 15.7 us-gaap_OperatingLeasesRentExpenseContingentRentals | 15.0 us-gaap_OperatingLeasesRentExpenseContingentRentals |
Sublease income | 0.8 us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue | 0.9 us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue | 0.9 us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue |
Total net present value of minimum operating lease obligations | 6,499.2 tjx_TotalNetPresentValueOfMinimumOperatingLeaseObligations |  |  |
Construction-in-progress | 60.7 us-gaap_ConstructionInProgressGross |  |  |
Outstanding letters of credit issued for the purchase of inventory | $ 42.9 tjx_LettersOfCreditOutstanding | $ 55.3 tjx_LettersOfCreditOutstanding |  |
Tjx Us And Canada | Maximum |  |  |  |
Commitments [Line Items] |  |  |  |
Operating leases term, years |  |  |  | 10 years
Tjx Us And Canada | Minimum |  |  |  |
Commitments [Line Items] |  |  |  |
Operating leases term, years |  |  |  | 5 years
Options to extend for one of more five-year periods |  |  |  | 1 year
TJX Europe | Maximum |  |  |  |
Commitments [Line Items] |  |  |  |
Operating leases term, years |  |  |  | 15 years
Optional lease kick-out term, years |  |  |  | 10 years

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- Details
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- Definition Letters of Credit Outstanding. + References No definition available. + Details
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- Definition Operating Lease Term + References No definition available. + Details
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- Definition Optional Extension For One Or More Five-Year Periods + References No definition available. + Details
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- Definition Optional Lease Kick Out Term + References No definition available. + Details
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- Definition Total net present value of minimum operating lease obligations. + References No definition available. + Details
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- Definition Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition The amount of revenue recognized for the period under subleasing arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 55 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6584307&loc=d3e41620-112719 + Details
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- Definition The increases or decreases in lease payments that result from changes occurring after the inception of the lease in the factors (other than the passage of time) on which lease payments are based, except that any escalation of minimum lease payments relating to increases in construction or acquisition cost of the leased property or for increases in some measure of cost or value during the construction or preconstruction period, are excluded from contingent rentals. Contingent rentals also may include amounts for which the triggering events have not yet occurred or the specified targets for which have not yet been achieved (such as sales based percentage rent), but which events are considered probable of occurring or which specified targets are considered probable of being achieved. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Contingent Rentals -URI http://asc.fasb.org/extlink&oid=6508509 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6452660&loc=d3e36991-112694 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 40 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6452616&loc=d3e36728-112689 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 25 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=7579899&loc=d3e35050-112683 + Details
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