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Long-Term Debt and Credit Lines - Additional Information (Details) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 10, 2020 USD ($) | Jul. 31, 2020 USD ($) | Jan. 29, 2022 | May 01, 2021 | Apr. 30, 2021 USD ($) | Jan. 30, 2021 USD ($) | Oct. 30, 2021 | Oct. 31, 2020 USD ($) CreditFacility | Nov. 02, 2019 USD ($) CreditFacility | Nov. 30, 2020 USD ($) | Nov. 18, 2020 USD ($) | Oct. 31, 2020 CAD ($) CreditFacility | Oct. 31, 2020 GBP (£) CreditFacility | May 15, 2020 | Apr. 01, 2020 USD ($) | Feb. 01, 2020 USD ($) CreditFacility | Feb. 01, 2020 CAD ($) CreditFacility | Feb. 01, 2020 GBP (£) CreditFacility | Nov. 02, 2019 CAD ($) CreditFacility | Nov. 02, 2019 GBP (£) CreditFacility
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments on revolving credit facilities |  |  |  |  |  |  |  | $ 1,000,000,000 | $ 0 |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolver, maximum borrowing capacity |  |  |  |  |  |  |  | 1,500,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Credit facilities, amount outstanding |  |  |  |  |  |  |  | $ 0 | $ 0 |  |  |  |  |  |  | $ 0 |  |  |  |
TJX Canada |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facilities, amount outstanding |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |  | $ 0 |  | $ 0 |
Revolving credit facilities, number | CreditFacility |  |  |  |  |  |  |  | 2 | 2 |  |  | 2 | 2 |  |  | 2 | 2 | 2 | 2 | 2
Current borrowing capacity |  |  |  |  |  |  |  |  |  |  |  | $ 10,000,000 |  |  |  |  | $ 10,000,000 |  | $ 10,000,000 |
TJX Canada | Letter of Credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facilities, amount outstanding |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  | 0 |  | 0 |
Current borrowing capacity |  |  |  |  |  |  |  |  |  |  |  | $ 10,000,000 |  |  |  |  | $ 10,000,000 |  | $ 10,000,000 |
TJX International | TJX Europe Credit Line |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facilities, amount outstanding | £ |  |  |  |  |  |  |  |  |  |  |  |  | £ 0 |  |  |  |  | £ 0 |  | £ 0
Current borrowing capacity | £ |  |  |  |  |  |  |  |  |  |  |  |  | £ 5,000,000 |  |  |  |  | £ 5,000,000 |  | £ 5,000,000
Revolving Credit Facility Due March 11, 2022 | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolver, maximum borrowing capacity |  |  |  |  |  |  |  | $ 500,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility Due May 10, 2024 | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolver, maximum borrowing capacity |  |  |  |  |  |  |  | $ 500,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility Due March 11, 2022 And May 10, 2024 | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payments on revolving credit facilities |  | $ 1,000,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility Due August 2021 | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolver, maximum borrowing capacity | $ 500,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, expiration period | 364 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Notes | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  | $ 1,000,000,000.0 |  |  |  |  |  |  |  |  |
Maximum tender amount |  |  |  |  |  |  |  |  |  |  | $ 750,000,000.0 |  |  |  |  |  |  |  |  |
Senior Notes | 3.50% Senior Unsecured Notes Due April 15, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,250,000,000 |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  | 3.50% |  |  |  | 3.50% | 3.50% |  | 3.50% |  |  |  |  |
Effective interest rate |  |  |  |  |  |  |  | 3.58% |  |  |  | 3.58% | 3.58% |  |  |  |  |  |  |
Senior Notes | 3.75% Senior Unsecured Notes Due April 15, 2027 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 750,000,000.0 |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  | 3.75% |  |  |  | 3.75% | 3.75% |  | 3.75% |  |  |  |  |
Effective interest rate |  |  |  |  |  |  |  | 3.76% |  |  |  | 3.76% | 3.76% |  |  |  |  |  |  |
Senior Notes | 3.75% Senior Unsecured Notes Due April 15, 2027 | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  |  |  |  | 3.75% |  |  |  |  |  |  |  |  |
Senior Notes | 3.875% Senior Unsecured Notes Due April 15, 2030 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,250,000,000 |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  | 3.875% |  |  |  | 3.875% | 3.875% |  | 3.875% |  |  |  |  |
Effective interest rate |  |  |  |  |  |  |  | 3.89% |  |  |  | 3.89% | 3.89% |  |  |  |  |  |  |
Senior Notes | 3.875% Senior Unsecured Notes Due April 15, 2030 | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  |  |  |  | 3.875% |  |  |  |  |  |  |  |  |
Senior Notes | 4.50% Senior Unsecured Notes Due April 15, 2050 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 750,000,000.0 |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  | 4.50% |  |  |  | 4.50% | 4.50% |  | 4.50% |  |  |  |  |
Effective interest rate |  |  |  |  |  |  |  | 4.52% |  |  |  | 4.52% | 4.52% |  |  |  |  |  |  |
Senior Notes | 4.50% Senior Unsecured Notes Due April 15, 2050 | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  |  |  |  | 4.50% |  |  |  |  |  |  |  |  |
Senior Notes | 1.150% Notes Due 2028 | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  | $ 500,000,000.0 |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  |  |  | 1.15% |  |  |  |  |  |  |  |  |  |
Senior Notes | 1.600% Notes Due 2031 | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  | $ 500,000,000.0 |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  |  |  | 1.60% |  |  |  |  |  |  |  |  |  |
Line of Credit | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effective interest rate |  | 2.007% |  |  |  |  |  |  |  |  |  |  |  | 1.757% |  |  |  |  |  |
Line of Credit | Revolving Credit Facility | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stepdown in ratio each quarter after fiscal quarter of 2022 |  |  |  |  |  |  | 0.50 |  |  |  |  |  |  |  |  |  |  |  |  |
Required minimum liquidity |  |  |  |  | $ 1,500,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Required EBITDAR |  |  |  |  |  | $ 650,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit | Revolving Credit Facility | Covenant period one | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ratio of funded debt to EBITDAR |  |  |  | 5.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit | Revolving Credit Facility | Covenant period two | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ratio of funded debt to EBITDAR |  |  | 3.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Period remaining on line of credit facility before it terminates, 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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