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Long-Term Debt and Credit Lines - Additional Information (Details) |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |
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Nov. 30, 2020 USD ($) | Dec. 31, 2020 USD ($) | Jul. 31, 2020 USD ($) | Jan. 30, 2021 USD ($) CreditFacility | Jul. 31, 2020 | May 15, 2020 | Jan. 30, 2021 USD ($) CreditFacility | Feb. 01, 2020 USD ($) | Feb. 02, 2019 USD ($) | Jan. 29, 2022 | Jul. 31, 2021 | May 01, 2021 | Apr. 30, 2021 USD ($) | Jan. 30, 2021 GBP (£) CreditFacility | Jan. 30, 2021 CAD ($) CreditFacility | May 02, 2020 USD ($) | Apr. 30, 2020 USD ($) | Feb. 01, 2020 GBP (£) CreditFacility | Feb. 01, 2020 CAD ($) CreditFacility
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,000,000,000 |  |  |
Payments of long-term debt and extinguishment expenses |  |  |  | $ (1,420,000,000) |  |  | $ (1,418,358,000) | $ 0 | $ 0 |  |  |  |  |  |  |  |  |  |
Loss on early extinguishment of debt |  |  |  | $ 300,000,000 |  |  | 312,233,000 | 0 | 0 |  |  |  |  |  |  |  |  |  |
Proceeds from debt, net of issuance costs | $ 990,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments on revolving credit facilities |  |  |  |  |  |  | $ 1,000,000,000 | $ 0 | $ 0 |  |  |  |  |  |  |  |  |  |
TJX Canada |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,000,000 |  |  |  | $ 10,000,000
Revolving credit facilities, number | CreditFacility |  |  |  | 2 |  |  | 2 |  |  |  |  |  |  | 2 | 2 |  |  | 2 | 2
Credit facilities, amount outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  | $ 0
Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Covenant, maximum leverage ratio |  |  |  |  |  |  |  |  |  | 3.50 |  | 5.00 |  |  |  |  |  |  |
Covenant, leverage ratio stepdown |  |  |  |  |  |  |  |  |  |  | 0.5 |  |  |  |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit, maximum borrowing capacity |  |  |  | $ 1,500,000,000 |  |  | $ 1,500,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Current borrowing capacity |  |  |  | 1,500,000,000 |  |  | 1,500,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate during period |  |  |  |  | 2.007% | 1.757% |  |  |  |  |  |  |  |  |  |  |  |  |
Covenant, minimum EBITDAR |  |  |  | 650,000,000 |  |  | 650,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Covenant, minimum liquidity |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000,000 |  |  |  |  |  |
Letter of Credit | TJX Canada |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,000,000 |  |  |  | $ 10,000,000
TJX Europe Credit Line | TJX International |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current borrowing capacity | £ |  |  |  |  |  |  |  |  |  |  |  |  |  | £ 5,000,000 |  |  |  | £ 5,000,000 |
Credit facilities, amount outstanding | £ |  |  |  |  |  |  |  |  |  |  |  |  |  | £ 0 |  |  |  | £ 0 |
Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  | $ 1,000,000,000 |  |  | $ 1,000,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Maximum tender amount |  | $ 1,120,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
3.50% Senior Unsecured Notes Due April 15, 2025 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,250,000,000 |  |
Debt instrument, interest rate |  |  |  | 3.50% |  |  | 3.50% |  |  |  |  |  |  | 3.50% | 3.50% |  | 3.50% |  |
3.75% Senior Unsecured Notes Due April 15, 2027 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 750,000,000 |  |
Debt instrument, interest rate |  |  |  | 3.75% |  |  | 3.75% |  |  |  |  |  |  | 3.75% | 3.75% |  | 3.75% |  |
3.875% Senior Unsecured Notes Due April 15, 2030 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,250,000,000 |  |
Debt instrument, interest rate |  |  |  | 3.875% |  |  | 3.875% |  |  |  |  |  |  | 3.875% | 3.875% |  | 3.875% |  |
Cash tender offer |  | 754,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
4.50% Senior Unsecured Notes Due April 15, 2050 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 750,000,000 |  |
Debt instrument, interest rate |  |  |  | 4.50% |  |  | 4.50% |  |  |  |  |  |  | 4.50% | 4.50% |  | 4.50% |  |
Cash tender offer |  | $ 365,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
1.150% Notes Due 2028 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount | $ 500,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate | 1.15% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
1.600% Notes Due 2031 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount | $ 500,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate | 1.60% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2.25% Senior Unsecured Notes Due September 15, 2026 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  | $ 1,000,000,000 |  |  | $ 1,000,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument maturity period, years |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |
Effective fixed rate |  |  |  | 2.36% |  |  | 2.36% |  |  |  |  |  |  | 2.36% | 2.36% |  |  |  |
2.25% Senior Unsecured Notes Due September 15, 2026 | Interest Rate Contract |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  | $ 700,000,000 |  |  | $ 700,000,000 |  |  |  |  |  |  |  |  |  |  |  |
2.25% Senior Unsecured Notes Due September 15, 2026 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  | 2.25% |  |  | 2.25% |  |  |  |  |  |  | 2.25% | 2.25% |  |  |  |
2.50% Senior Unsecured Notes Due May 15, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  | $ 500,000,000 |  |  | $ 500,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument maturity period, years |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |
Effective fixed rate |  |  |  | 2.57% |  |  | 2.57% |  |  |  |  |  |  | 2.57% | 2.57% |  |  |  |
2.50% Senior Unsecured Notes Due May 15, 2023 | Interest Rate Contract |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  | $ 250,000,000 |  |  | $ 250,000,000 |  |  |  |  |  |  |  |  |  |  |  |
2.50% Senior Unsecured Notes Due May 15, 2023 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  | 2.50% |  |  | 2.50% |  |  |  |  |  |  | 2.50% | 2.50% |  |  |  |
2.75% Senior Unsecured Notes Due June 15, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  | $ 750,000,000 |  |  | $ 750,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument maturity period, years |  |  |  |  |  |  | 7 years |  |  |  |  |  |  |  |  |  |  |  |
Effective fixed rate |  |  |  | 2.91% |  |  | 2.91% |  |  |  |  |  |  | 2.91% | 2.91% |  |  |  |
Cash flow hedges, pre-tax realized loss |  |  |  |  |  |  | $ 8,000,000 |  |  |  |  |  |  |  |  |  |  |  |
2.75% Senior Unsecured Notes Due June 15, 2021 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  | 2.75% |  |  | 2.75% |  |  |  |  |  |  | 2.75% | 2.75% |  |  |  |
364-Day Revolving Credit Facility | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument maturity period, years |  |  |  |  |  |  | 364 days |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit, maximum borrowing capacity |  |  |  | $ 500,000,000 |  |  | $ 500,000,000 |  |  |  |  |  |  |  |  |  |  |  |
2022 Revolving Credit Facility | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit, maximum borrowing capacity |  |  |  | 500,000,000 |  |  | 500,000,000 |  |  |  |  |  |  |  |  |  |  |  |
2024 Revolving Credit Facility | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit, maximum borrowing capacity |  |  |  | $ 500,000,000 |  |  | $ 500,000,000 |  |  |  |  |  |  |  |  |  |  |  |
2022 and 2024 Revolving Credit Facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments on revolving credit facilities |  |  | $ 1,000,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Debt Instrument, Covenant, Leverage Ratio, Maximum + References No definition available. + Details
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- Definition Debt Instrument, Covenant, Leverage Ratio, Stepdown + References No definition available. + Details
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- Definition Debt Instrument, Covenant, Minimum EBITDAR + References No definition available. + Details
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- Definition Period of time between issuance and maturity of debt instrument, 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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- 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 Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the 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 The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate. + 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 Amount, before tax and after reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580 + Details
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- Definition Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details
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