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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	9 Months Ended		12 Months Ended
	Oct. 28, 2023 EUR (€) gal / mo	Oct. 29, 2022 EUR (€) gal / mo	Jan. 28, 2023 EUR (€) gal / mo	Oct. 28, 2023 GBP (£)	Oct. 28, 2023 USD ($)	Oct. 28, 2023 AUD ($)	Oct. 28, 2023 CAD ($)	Oct. 28, 2023 PLN (zł)	Jan. 28, 2023 GBP (£)	Jan. 28, 2023 USD ($)	Jan. 28, 2023 AUD ($)	Jan. 28, 2023 CAD ($)	Jan. 28, 2023 PLN (zł)	Oct. 29, 2022 GBP (£)	Oct. 29, 2022 USD ($)	Oct. 29, 2022 AUD ($)	Oct. 29, 2022 CAD ($)	Oct. 29, 2022 PLN (zł)
Derivatives, Fair Value [Line Items]
Current Asset U.S.$					$ 56.4					$ 12.5					$ 127.6
Current (Liability) U.S.$					(10.2)					(45.1)					(26.9)
Net Fair Value in U.S.$					46.2					(32.6)					100.7
Diesel fuel contracts | Prepaid Exp
Derivatives, Fair Value [Line Items]
Current Asset U.S.$					2.7					3.9					18.4
Current (Liability) U.S.$					0.0					0.0					0.0
Net Fair Value in U.S.$					$ 2.7					$ 3.9					$ 18.4
Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.8646			0.8646	0.8646	0.8646	0.8646	0.8646
Current Asset U.S.$					$ 0.0
Current (Liability) U.S.$					(1.1)
Net Fair Value in U.S.$					$ (1.1)
Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.8769	0.8834						0.8834	0.8834	0.8834	0.8834	0.8834	0.8769	0.8769	0.8769	0.8769	0.8769
Current Asset U.S.$										$ 0.8					$ 4.2
Current (Liability) U.S.$										0.0					0.0
Net Fair Value in U.S.$										$ 0.8					$ 4.2
Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate			0.6819						0.6819	0.6819	0.6819	0.6819	0.6819
Current Asset U.S.$										$ 0.0
Current (Liability) U.S.$										(3.3)
Net Fair Value in U.S.$										$ (3.3)
Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.6677	0.6843		0.6677	0.6677	0.6677	0.6677	0.6677						0.6843	0.6843	0.6843	0.6843	0.6843
Current Asset U.S.$					$ 1.9										$ 3.6
Current (Liability) U.S.$					0.0										0.0
Net Fair Value in U.S.$					$ 1.9										$ 3.6
Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate	1.2537	1.2201	1.1916	1.2537	1.2537	1.2537	1.2537	1.2537	1.1916	1.1916	1.1916	1.1916	1.1916	1.2201	1.2201	1.2201	1.2201	1.2201
Current Asset U.S.$					$ 14.7					$ 0.1					$ 29.6
Current (Liability) U.S.$					(0.1)					(15.4)					(3.0)
Net Fair Value in U.S.$					$ 14.6					$ (15.3)					$ 26.6
Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.7440			0.7440	0.7440	0.7440	0.7440	0.7440
Current Asset U.S.$					$ 16.8
Current (Liability) U.S.$					0.0
Net Fair Value in U.S.$					$ 16.8
Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.7633	0.7449						0.7449	0.7449	0.7449	0.7449	0.7449	0.7633	0.7633	0.7633	0.7633	0.7633
Current Asset U.S.$										$ 2.2					$ 22.2
Current (Liability) U.S.$										(7.1)					(0.5)
Net Fair Value in U.S.$										$ (4.9)					$ 21.7
Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.6826	0.7453	0.7064	0.6826	0.6826	0.6826	0.6826	0.6826	0.7064	0.7064	0.7064	0.7064	0.7064	0.7453	0.7453	0.7453	0.7453	0.7453
Current Asset U.S.$					$ 0.2					$ 0.4					$ 0.2
Current (Liability) U.S.$					(0.1)					(0.0)					(0.0)
Net Fair Value in U.S.$					$ 0.1					$ 0.4					$ 0.2
Conversion of Zloty to Pound | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.1900	0.1760	0.1788	0.1900	0.1900	0.1900	0.1900	0.1900	0.1788	0.1788	0.1788	0.1788	0.1788	0.1760	0.1760	0.1760	0.1760	0.1760
Current Asset U.S.$					$ 0.0					$ 0.0					$ 0.0
Current (Liability) U.S.$					(3.6)					(3.6)					(2.8)
Net Fair Value in U.S.$					$ (3.6)					$ (3.6)					$ (2.8)
Conversion of US Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.9190			0.9190	0.9190	0.9190	0.9190	0.9190
Current Asset U.S.$					$ 0.0
Current (Liability) U.S.$					(3.2)
Net Fair Value in U.S.$					(3.2)
Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate			0.9634						0.9634	0.9634	0.9634	0.9634	0.9634
Current Asset U.S.$										$ 4.3
Current (Liability) U.S.$										0.0
Net Fair Value in U.S.$										4.3
Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.9635												0.9635	0.9635	0.9635	0.9635	0.9635
Current Asset U.S.$															$ 0.3
Current (Liability) U.S.$															(4.0)
Net Fair Value in U.S.$															(3.7)
Pay | Diesel fuel contracts | Prepaid Exp | Minimum
Derivatives, Fair Value [Line Items]
Derivative nonmonetary notional amount | gal / mo	3.0	3.1	3.2
Pay | Diesel fuel contracts | Prepaid Exp | Maximum
Derivatives, Fair Value [Line Items]
Derivative nonmonetary notional amount | gal / mo	3.8	3.9	3.6
Pay | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €	€ 118
Pay | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | €		€ 222	€ 146
Pay | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount											$ 104
Pay | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount						$ 58										$ 79
Pay | Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				£ 365					£ 299					£ 389
Pay | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount							$ 773
Pay | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount												$ 705					$ 710
Pay | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount							$ 35					$ 23					$ 16
Pay | Conversion of Zloty to Pound | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | zł								zł 581					zł 507					zł 614
Pay | Conversion of US Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount					120.0
Pay | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount										85.0
Pay | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount															88.0
Receive | Diesel fuel contracts | Prepaid Exp | Minimum
Derivatives, Fair Value [Line Items]
Derivative nonmonetary notional amount | gal / mo	3.0	3.1	3.2
Receive | Diesel fuel contracts | Prepaid Exp | Maximum
Derivatives, Fair Value [Line Items]
Derivative nonmonetary notional amount | gal / mo	3.8	3.9	3.6
Receive | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				102
Receive | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | £									129					195
Receive | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount										71.0
Receive | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount					39.0										54.0
Receive | Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount					458.0					356.0					475.0
Receive | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount					$ 575.0
Receive | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount										$ 525.0					$ 542.0
Receive | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €	€ 24	€ 12	€ 16
Receive | Conversion of Zloty to Pound | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				£ 110					£ 91					£ 108
Receive | Conversion of US Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €	€ 110
Receive | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | €			€ 82
Receive | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €		€ 85
Fair value hedges | Conversion of Euro to Pound | Intercompany balances, primarily debt: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.8738	0.8526	0.8807	0.8738	0.8738	0.8738	0.8738	0.8738	0.8807	0.8807	0.8807	0.8807	0.8807	0.8526	0.8526	0.8526	0.8526	0.8526
Current Asset U.S.$					$ 0.0					$ 0.0					$ 0.0
Current (Liability) U.S.$					(0.1)					(0.3)					(0.8)
Net Fair Value in U.S.$					$ (0.1)					$ (0.3)					$ (0.8)
Fair value hedges | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate			0.7003						0.7003	0.7003	0.7003	0.7003	0.7003
Current Asset U.S.$										$ 0.0
Current (Liability) U.S.$										(2.6)
Net Fair Value in U.S.$										$ (2.6)
Fair value hedges | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.6937	0.7034		0.6937	0.6937	0.6937	0.6937	0.6937						0.7034	0.7034	0.7034	0.7034	0.7034
Current Asset U.S.$					$ 8.4										$ 10.6
Current (Liability) U.S.$					0.0										0.0
Net Fair Value in U.S.$					$ 8.4										$ 10.6
Fair value hedges | Conversion of US Dollar to Pound | Intercompany balances, primarily debt: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.8010	0.7368	0.8010	0.8010	0.8010	0.8010	0.8010	0.8010	0.8010	0.8010	0.8010	0.8010	0.8010	0.7368	0.7368	0.7368	0.7368	0.7368
Current Asset U.S.$					$ 0.0					$ 0.0					$ 0.0
Current (Liability) U.S.$					(2.0)					(0.3)					(11.2)
Net Fair Value in U.S.$					$ (2.0)					$ (0.3)					$ (11.2)
Fair value hedges | Conversion of Pound to US Dollar | Intercompany balances, primarily debt: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate			1.2191						1.2191	1.2191	1.2191	1.2191	1.2191
Current Asset U.S.$										$ 0.0
Current (Liability) U.S.$										(5.5)
Net Fair Value in U.S.$										$ (5.5)
Fair value hedges | Conversion of Pound to US Dollar | Intercompany balances, primarily debt: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate	1.2396			1.2396	1.2396	1.2396	1.2396	1.2396
Current Asset U.S.$					$ 3.9
Current (Liability) U.S.$					0.0
Net Fair Value in U.S.$					$ 3.9
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		1.2341												1.2341	1.2341	1.2341	1.2341	1.2341
Current Asset U.S.$															$ 20.8
Current (Liability) U.S.$															(4.1)
Net Fair Value in U.S.$															$ 16.7
Fair value hedges | Conversion Of Euro To US Dollar | Intercompany balances, primarily debt: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate	1.1008			1.1008	1.1008	1.1008	1.1008	1.1008
Current Asset U.S.$					$ 7.8
Current (Liability) U.S.$					0.0
Net Fair Value in U.S.$					7.8
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		1.0862	1.0652						1.0652	1.0652	1.0652	1.0652	1.0652	1.0862	1.0862	1.0862	1.0862	1.0862
Current Asset U.S.$										$ 0.8					$ 17.7
Current (Liability) U.S.$										(7.0)					(0.5)
Net Fair Value in U.S.$										(6.2)					17.2
Fair value hedges | Pay | Conversion of Euro to Pound | Intercompany balances, primarily debt: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €	€ 60	€ 60	€ 60
Fair value hedges | Pay | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount											$ 150
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						$ 150										$ 170
Fair value hedges | Pay | Conversion of US Dollar to Pound | Intercompany balances, primarily debt: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount					69.0					69.0					75.0
Fair value hedges | Pay | Conversion of Pound to US Dollar | Intercompany balances, primarily debt: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £									£ 200
Fair value hedges | Pay | Conversion of Pound to US Dollar | Intercompany balances, primarily debt: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				£ 150
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 | £														£ 200
Fair value hedges | Pay | Conversion Of Euro To US Dollar | Intercompany balances, primarily debt: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | €	€ 200
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
Fair value hedges | Receive | Conversion of Euro to Pound | Intercompany balances, primarily debt: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				52					53					51
Fair value hedges | Receive | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount										105.0
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					104.0										120.0
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					£ 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										244.0
Fair value hedges | Receive | Conversion of Pound to US Dollar | Intercompany balances, primarily debt: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount					186.0
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															247.0
Fair value hedges | Receive | Conversion Of Euro To US Dollar | Intercompany balances, primarily debt: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount					$ 220.0
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										$ 213.0					$ 217.0

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A

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+ References

No definition available.

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