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Financial Instruments - Summary of Derivative Financial Instruments, Related Fair Value and Balance Sheet Classification (Details) € in Millions, £ in Millions, zł in Millions, gal / mo in Millions, $ in Millions, $ in Millions, $ in Millions | 6 Months Ended | 12 Months Ended |  |  |
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Aug. 02, 2025 EUR (€) gal / mo | Aug. 03, 2024 EUR (€) gal / mo | Feb. 01, 2025 EUR (€) gal / mo | Aug. 02, 2025 GBP (£) | Aug. 02, 2025 USD ($) | Aug. 02, 2025 AUD ($) | Aug. 02, 2025 CAD ($) | Aug. 02, 2025 PLN (zł) | Feb. 01, 2025 GBP (£) | Feb. 01, 2025 USD ($) | Feb. 01, 2025 AUD ($) | Feb. 01, 2025 CAD ($) | Feb. 01, 2025 PLN (zł) | Aug. 03, 2024 GBP (£) | Aug. 03, 2024 USD ($) | Aug. 03, 2024 AUD ($) | Aug. 03, 2024 CAD ($) | Aug. 03, 2024 PLN (zł)
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current Asset U.S.$ |  |  |  |  | $ 14.2 |  |  |  |  | $ 53.1 |  |  |  |  | $ 19.1 |  |  |
Current (Liability) U.S.$ |  |  |  |  | (39.1) |  |  |  |  | (18.1) |  |  |  |  | (28.6) |  |  |
Net Fair Value in U.S.$ |  |  |  |  | (24.9) |  |  |  |  | 35.0 |  |  |  |  | (9.5) |  |  |
Economic hedges for which hedge accounting was not elected | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current Asset U.S.$ |  |  |  |  | 0.0 |  |  |  |  | 0.0 |  |  |  |  | 0.0 |  |  |
Current (Liability) U.S.$ |  |  |  |  | (0.4) |  |  |  |  | (9.1) |  |  |  |  | (15.6) |  |  |
Net Fair Value in U.S.$ |  |  |  |  | $ (0.4) |  |  |  |  | $ (9.1) |  |  |  |  | $ (15.6) |  |  |
Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate | 0.8680 | 0.8408 |  | 0.8680 | 0.8680 | 0.8680 | 0.8680 | 0.8680 |  |  |  |  |  | 0.8408 | 0.8408 | 0.8408 | 0.8408 | 0.8408
Current Asset U.S.$ |  |  |  |  | $ 0.0 |  |  |  |  |  |  |  |  |  | $ 0.0 |  |  |
Current (Liability) U.S.$ |  |  |  |  | (1.1) |  |  |  |  |  |  |  |  |  | (2.4) |  |  |
Net Fair Value in U.S.$ |  |  |  |  | $ (1.1) |  |  |  |  |  |  |  |  |  | $ (2.4) |  |  |
Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate |  |  | 0.8442 |  |  |  |  |  | 0.8442 | 0.8442 | 0.8442 | 0.8442 | 0.8442 |  |  |  |  |
Current Asset U.S.$ |  |  |  |  |  |  |  |  |  | $ 1.5 |  |  |  |  |  |  |  |
Current (Liability) U.S.$ |  |  |  |  |  |  |  |  |  | 0.0 |  |  |  |  |  |  |  |
Net Fair Value in U.S.$ |  |  |  |  |  |  |  |  |  | $ 1.5 |  |  |  |  |  |  |  |
Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate | 0.6472 |  | 0.6448 | 0.6472 | 0.6472 | 0.6472 | 0.6472 | 0.6472 | 0.6448 | 0.6448 | 0.6448 | 0.6448 | 0.6448 |  |  |  |  |
Current Asset U.S.$ |  |  |  |  | $ 0.3 |  |  |  |  | $ 1.7 |  |  |  |  |  |  |  |
Current (Liability) U.S.$ |  |  |  |  | (0.4) |  |  |  |  | (0.1) |  |  |  |  |  |  |  |
Net Fair Value in U.S.$ |  |  |  |  | $ (0.1) |  |  |  |  | $ 1.6 |  |  |  |  |  |  |  |
Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate |  | 0.6677 |  |  |  |  |  |  |  |  |  |  |  | 0.6677 | 0.6677 | 0.6677 | 0.6677 | 0.6677
Current Asset U.S.$ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.8 |  |  |
Current (Liability) U.S.$ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.0 |  |  |
Net Fair Value in U.S.$ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.8 |  |  |
Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate | 1.3165 | 1.2704 | 1.2742 | 1.3165 | 1.3165 | 1.3165 | 1.3165 | 1.3165 | 1.2742 | 1.2742 | 1.2742 | 1.2742 | 1.2742 | 1.2704 | 1.2704 | 1.2704 | 1.2704 | 1.2704
Current Asset U.S.$ |  |  |  |  | $ 5.2 |  |  |  |  | $ 15.2 |  |  |  |  | $ 0.8 |  |  |
Current (Liability) U.S.$ |  |  |  |  | (12.1) |  |  |  |  | (1.1) |  |  |  |  | (5.8) |  |  |
Net Fair Value in U.S.$ |  |  |  |  | $ (6.9) |  |  |  |  | $ 14.1 |  |  |  |  | $ (5.0) |  |  |
Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate | 0.7244 |  |  | 0.7244 | 0.7244 | 0.7244 | 0.7244 | 0.7244 |  |  |  |  |  |  |  |  |  |
Current Asset U.S.$ |  |  |  |  | $ 3.3 |  |  |  |  |  |  |  |  |  |  |  |  |
Current (Liability) U.S.$ |  |  |  |  | (6.5) |  |  |  |  |  |  |  |  |  |  |  |  |
Net Fair Value in U.S.$ |  |  |  |  | $ (3.2) |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate |  | 0.7340 | 0.7159 |  |  |  |  |  | 0.7159 | 0.7159 | 0.7159 | 0.7159 | 0.7159 | 0.7340 | 0.7340 | 0.7340 | 0.7340 | 0.7340
Current Asset U.S.$ |  |  |  |  |  |  |  |  |  | $ 21.9 |  |  |  |  | $ 10.5 |  |  |
Current (Liability) U.S.$ |  |  |  |  |  |  |  |  |  | 0.0 |  |  |  |  | 0.0 |  |  |
Net Fair Value in U.S.$ |  |  |  |  |  |  |  |  |  | $ 21.9 |  |  |  |  | $ 10.5 |  |  |
Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate |  |  | 0.6673 |  |  |  |  |  | 0.6673 | 0.6673 | 0.6673 | 0.6673 | 0.6673 |  |  |  |  |
Current Asset U.S.$ |  |  |  |  |  |  |  |  |  | $ 0.1 |  |  |  |  |  |  |  |
Current (Liability) U.S.$ |  |  |  |  |  |  |  |  |  | (0.0) |  |  |  |  |  |  |  |
Net Fair Value in U.S.$ |  |  |  |  |  |  |  |  |  | $ 0.1 |  |  |  |  |  |  |  |
Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate | 0.6330 | 0.6745 |  | 0.6330 | 0.6330 | 0.6330 | 0.6330 | 0.6330 |  |  |  |  |  | 0.6745 | 0.6745 | 0.6745 | 0.6745 | 0.6745
Current Asset U.S.$ |  |  |  |  | $ 0.4 |  |  |  |  |  |  |  |  |  | $ 0.5 |  |  |
Current (Liability) U.S.$ |  |  |  |  | 0.0 |  |  |  |  |  |  |  |  |  | 0.0 |  |  |
Net Fair Value in U.S.$ |  |  |  |  | $ 0.4 |  |  |  |  |  |  |  |  |  | $ 0.5 |  |  |
Conversion of Zloty to Pound | Merchandise purchase commitments | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate | 0.1994 |  | 0.1933 | 0.1994 | 0.1994 | 0.1994 | 0.1994 | 0.1994 | 0.1933 | 0.1933 | 0.1933 | 0.1933 | 0.1933 |  |  |  |  |
Current Asset U.S.$ |  |  |  |  | $ 0.0 |  |  |  |  | $ 0.0 |  |  |  |  |  |  |  |
Current (Liability) U.S.$ |  |  |  |  | (3.0) |  |  |  |  | (3.5) |  |  |  |  |  |  |  |
Net Fair Value in U.S.$ |  |  |  |  | $ (3.0) |  |  |  |  | $ (3.5) |  |  |  |  |  |  |  |
Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate |  | 0.1970 |  |  |  |  |  |  |  |  |  |  |  | 0.1970 | 0.1970 | 0.1970 | 0.1970 | 0.1970
Current Asset U.S.$ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.2 |  |  |
Current (Liability) U.S.$ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1.1) |  |  |
Net Fair Value in U.S.$ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (0.9) |  |  |
Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate | 0.8841 | 0.9200 | 0.9317 | 0.8841 | 0.8841 | 0.8841 | 0.8841 | 0.8841 | 0.9317 | 0.9317 | 0.9317 | 0.9317 | 0.9317 | 0.9200 | 0.9200 | 0.9200 | 0.9200 | 0.9200
Current Asset U.S.$ |  |  |  |  | $ 3.1 |  |  |  |  | $ 0.1 |  |  |  |  | $ 1.0 |  |  |
Current (Liability) U.S.$ |  |  |  |  | (0.2) |  |  |  |  | (2.9) |  |  |  |  | (0.1) |  |  |
Net Fair Value in U.S.$ |  |  |  |  | 2.9 |  |  |  |  | (2.8) |  |  |  |  | 0.9 |  |  |
Pay | Economic hedges for which hedge accounting was not elected | (Accrued Exp) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative nonmonetary notional amount | gal / mo | 3.2 | 3.1 | 3.1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pay | Economic hedges for which hedge accounting was not elected | (Accrued Exp) | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative nonmonetary notional amount | gal / mo | 4.1 | 4.2 | 3.9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pay | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | € | € 159 | € 157 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pay | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | € |  |  | € 175 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pay | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  | $ 123 |  |  |  |  | $ 81 |  |  |  |  |  |  |
Pay | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 120 |  |
Pay | Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  | £ 557 |  |  |  |  | £ 416 |  |  |  |  | £ 434 |  |  |  |
Pay | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  |  | $ 987 |  |  |  |  |  |  |  |  |  |  |
Pay | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  |  |  |  |  |  |  | $ 873 |  |  |  |  | $ 899 |
Pay | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  |  |  |  |  |  |  | $ 33 |  |  |  |  |  |
Pay | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  |  | $ 43 |  |  |  |  |  |  |  |  |  | $ 33 |
Pay | Conversion of Zloty to Pound | Merchandise purchase commitments | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | zł |  |  |  |  |  |  |  | zł 503 |  |  |  |  | zł 552 |  |  |  |  |
Pay | Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | zł |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | zł 554
Pay | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  | 102.0 |  |  |  |  | 87.0 |  |  |  |  | 136.0 |  |  |
Receive | Economic hedges for which hedge accounting was not elected | (Accrued Exp) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative nonmonetary notional amount | gal / mo | 3.2 | 3.1 | 3.1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Receive | Economic hedges for which hedge accounting was not elected | (Accrued Exp) | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative nonmonetary notional amount | gal / mo | 4.1 | 4.2 | 3.9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Receive | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  | 138 |  |  |  |  |  |  |  |  |  | 132 |  |  |  |
Receive | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  |  |  |  |  |  | 148 |  |  |  |  |  |  |  |  |
Receive | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  | 80.0 |  |  |  |  | 52.0 |  |  |  |  |  |  |  |
Receive | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 80.0 |  |  |
Receive | Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  | 733.0 |  |  |  |  | 530.0 |  |  |  |  | 551.0 |  |  |
Receive | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  | $ 715.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Receive | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  |  |  |  |  | $ 625.0 |  |  |  |  | $ 660.0 |  |  |
Receive | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | € |  |  | € 22 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Receive | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | € | € 27 | € 22 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Receive | Conversion of Zloty to Pound | Merchandise purchase commitments | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  | £ 100 |  |  |  |  | £ 107 |  |  |  |  |  |  |  |  |
Receive | Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  |  |  |  |  |  |  |  |  |  |  | £ 109 |  |  |  |
Receive | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | € | € 90 | € 125 | € 82 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Conversion of Euro to Pound | Intercompany balances, primarily debt | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate | 0.8684 |  |  | 0.8684 | 0.8684 | 0.8684 | 0.8684 | 0.8684 |  |  |  |  |  |  |  |  |  |
Current Asset U.S.$ |  |  |  |  | $ 0.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Current (Liability) U.S.$ |  |  |  |  | (1.4) |  |  |  |  |  |  |  |  |  |  |  |  |
Net Fair Value in U.S.$ |  |  |  |  | $ (1.4) |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Conversion of Euro to Pound | Intercompany balances, primarily debt | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate |  | 0.8546 | 0.8523 |  |  |  |  |  | 0.8523 | 0.8523 | 0.8523 | 0.8523 | 0.8523 | 0.8546 | 0.8546 | 0.8546 | 0.8546 | 0.8546
Current Asset U.S.$ |  |  |  |  |  |  |  |  |  | $ 0.7 |  |  |  |  | $ 0.3 |  |  |
Current (Liability) U.S.$ |  |  |  |  |  |  |  |  |  | (0.1) |  |  |  |  | (0.7) |  |  |
Net Fair Value in U.S.$ |  |  |  |  |  |  |  |  |  | $ 0.6 |  |  |  |  | $ (0.4) |  |  |
Fair value hedges | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate | 0.6393 |  |  | 0.6393 | 0.6393 | 0.6393 | 0.6393 | 0.6393 |  |  |  |  |  |  |  |  |  |
Current Asset U.S.$ |  |  |  |  | $ 0.4 |  |  |  |  |  |  |  |  |  |  |  |  |
Current (Liability) U.S.$ |  |  |  |  | (2.6) |  |  |  |  |  |  |  |  |  |  |  |  |
Net Fair Value in U.S.$ |  |  |  |  | $ (2.2) |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate |  | 0.6637 | 0.6420 |  |  |  |  |  | 0.6420 | 0.6420 | 0.6420 | 0.6420 | 0.6420 | 0.6637 | 0.6637 | 0.6637 | 0.6637 | 0.6637
Current Asset U.S.$ |  |  |  |  |  |  |  |  |  | $ 3.5 |  |  |  |  | $ 2.2 |  |  |
Current (Liability) U.S.$ |  |  |  |  |  |  |  |  |  | 0.0 |  |  |  |  | 0.0 |  |  |
Net Fair Value in U.S.$ |  |  |  |  |  |  |  |  |  | $ 3.5 |  |  |  |  | $ 2.2 |  |  |
Fair value hedges | Conversion of US Dollar to Pound | Intercompany balances, primarily debt | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate | 0.7409 |  |  | 0.7409 | 0.7409 | 0.7409 | 0.7409 | 0.7409 |  |  |  |  |  |  |  |  |  |
Current Asset U.S.$ |  |  |  |  | $ 0.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Current (Liability) U.S.$ |  |  |  |  | (1.1) |  |  |  |  |  |  |  |  |  |  |  |  |
Net Fair Value in U.S.$ |  |  |  |  | $ (1.1) |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Conversion of US Dollar to Pound | Intercompany balances, primarily debt | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate |  | 0.7898 | 0.8177 |  |  |  |  |  | 0.8177 | 0.8177 | 0.8177 | 0.8177 | 0.8177 | 0.7898 | 0.7898 | 0.7898 | 0.7898 | 0.7898
Current Asset U.S.$ |  |  |  |  |  |  |  |  |  | $ 0.8 |  |  |  |  | $ 0.7 |  |  |
Current (Liability) U.S.$ |  |  |  |  |  |  |  |  |  | 0.0 |  |  |  |  | 0.0 |  |  |
Net Fair Value in U.S.$ |  |  |  |  |  |  |  |  |  | $ 0.8 |  |  |  |  | $ 0.7 |  |  |
Fair value hedges | Conversion of Pound to US Dollar | Intercompany balances, primarily debt | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate |  |  | 1.2222 |  |  |  |  |  | 1.2222 | 1.2222 | 1.2222 | 1.2222 | 1.2222 |  |  |  |  |
Current Asset U.S.$ |  |  |  |  |  |  |  |  |  | $ 0.0 |  |  |  |  |  |  |  |
Current (Liability) U.S.$ |  |  |  |  |  |  |  |  |  | (0.9) |  |  |  |  |  |  |  |
Net Fair Value in U.S.$ |  |  |  |  |  |  |  |  |  | $ (0.9) |  |  |  |  |  |  |  |
Fair value hedges | Conversion of Pound to US Dollar | Intercompany balances, primarily debt | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate |  | 1.2712 |  |  |  |  |  |  |  |  |  |  |  | 1.2712 | 1.2712 | 1.2712 | 1.2712 | 1.2712
Current Asset U.S.$ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.5 |  |  |
Current (Liability) U.S.$ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1.6) |  |  |
Net Fair Value in U.S.$ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (1.1) |  |  |
Fair value hedges | Conversion of Pound to US Dollar | Intercompany balances, primarily debt | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate | 1.3490 |  |  | 1.3490 | 1.3490 | 1.3490 | 1.3490 | 1.3490 |  |  |  |  |  |  |  |  |  |
Current Asset U.S.$ |  |  |  |  | $ 1.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Current (Liability) U.S.$ |  |  |  |  | 0.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Net Fair Value in U.S.$ |  |  |  |  | $ 1.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Conversion Of Euro To US Dollar | Intercompany balances, primarily debt | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Blended Contract Rate | 1.1221 | 1.0949 | 1.0852 | 1.1221 | 1.1221 | 1.1221 | 1.1221 | 1.1221 | 1.0852 | 1.0852 | 1.0852 | 1.0852 | 1.0852 | 1.0949 | 1.0949 | 1.0949 | 1.0949 | 1.0949
Current Asset U.S.$ |  |  |  |  | $ 0.5 |  |  |  |  | $ 7.6 |  |  |  |  | $ 0.6 |  |  |
Current (Liability) U.S.$ |  |  |  |  | (10.3) |  |  |  |  | (0.4) |  |  |  |  | (1.3) |  |  |
Net Fair Value in U.S.$ |  |  |  |  | (9.8) |  |  |  |  | 7.2 |  |  |  |  | (0.7) |  |  |
Fair value hedges | Pay | Conversion of Euro to Pound | Intercompany balances, primarily debt | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | € | € 83 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Pay | Conversion of Euro to Pound | Intercompany balances, primarily debt | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | € |  | € 78 | € 79 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Pay | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  | $ 210 |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Pay | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  |  |  |  |  |  | $ 210 |  |  |  |  | $ 210 |  |
Fair value hedges | Pay | Conversion of US Dollar to Pound | Intercompany balances, primarily debt | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  | 74.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Pay | Conversion of US Dollar to Pound | Intercompany balances, primarily debt | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  |  |  |  |  | 67.0 |  |  |  |  | 70.0 |  |  |
Fair value hedges | Pay | Conversion of Pound to US Dollar | Intercompany balances, primarily debt | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  |  |  |  |  |  | £ 50 |  |  |  |  |  |  |  |  |
Fair value hedges | Pay | Conversion of Pound to US Dollar | Intercompany balances, primarily debt | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  |  |  |  |  |  |  |  |  |  |  | £ 100 |  |  |  |
Fair value hedges | Pay | Conversion of Pound to US Dollar | Intercompany balances, primarily debt | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  | £ 50 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Pay | Conversion Of Euro To US Dollar | Intercompany balances, primarily debt | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | € | € 200 | € 200 | € 200 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Receive | Conversion of Euro to Pound | Intercompany balances, primarily debt | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  | 72 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Receive | Conversion of Euro to Pound | Intercompany balances, primarily debt | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  |  |  |  |  |  | 67 |  |  |  |  | 67 |  |  |  |
Fair value hedges | Receive | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  | 134.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Receive | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  |  |  |  |  | 135.0 |  |  |  |  | 139.0 |  |  |
Fair value hedges | Receive | Conversion of US Dollar to Pound | Intercompany balances, primarily debt | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  | £ 55 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Receive | Conversion of US Dollar to Pound | Intercompany balances, primarily debt | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  |  |  |  |  |  | £ 55 |  |  |  |  | £ 55 |  |  |  |
Fair value hedges | Receive | Conversion of Pound to US Dollar | Intercompany balances, primarily debt | (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  |  |  |  |  | 61.0 |  |  |  |  |  |  |  |
Fair value hedges | Receive | Conversion of Pound to US Dollar | Intercompany balances, primarily debt | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 127.0 |  |  |
Fair value hedges | Receive | Conversion of Pound to US Dollar | Intercompany balances, primarily debt | Prepaid Exp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  | 67.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges | Receive | Conversion Of Euro To US Dollar | Intercompany balances, primarily debt | Prepaid Exp / (Accrued Exp) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative notional amount |  |  |  |  | $ 224.0 |  |  |  |  | $ 217.0 |  |  |  |  | $ 219.0 |  |  |

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- Definition Blended contract rate value. + References No definition available. + Details
Name: | tjx_BlendedContractRateValue
Namespace Prefix: | tjx_
Data Type: | xbrli:pureItemType
Balance Type: | na
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