Financial Instruments - Summary of Derivative Financial Instruments, Related Fair Value and Balance Sheet Classification (Details) € in Thousands, £ in Thousands, zł in Thousands, $ in Thousands, $ in Thousands, $ in Thousands, gal / mo in Millions	3 Months Ended		12 Months Ended
	May 02, 2020 CAD ($) gal / mo	May 04, 2019 CAD ($) gal / mo	Feb. 01, 2020 CAD ($) gal / mo	May 02, 2020 GBP (£)	May 02, 2020 AUD ($)	May 02, 2020 USD ($)	May 02, 2020 EUR (€)	May 02, 2020 PLN (zł)	Feb. 01, 2020 GBP (£)	Feb. 01, 2020 AUD ($)	Feb. 01, 2020 USD ($)	Feb. 01, 2020 EUR (€)	Feb. 01, 2020 PLN (zł)	May 04, 2019 GBP (£)	May 04, 2019 AUD ($)	May 04, 2019 USD ($)	May 04, 2019 EUR (€)	May 04, 2019 PLN (zł)
Derivatives, Fair Value [Line Items]
Current Asset U.S.$						$ 11,777					$ 7,240					$ 11,811
Current (Liability) U.S.$						(38,846)					(20,205)					(5,273)
Net Fair Value in U.S.$						(27,069)					(12,965)					6,538
Diesel fuel contracts | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Current Asset U.S.$						0					0					0
Current (Liability) U.S.$						(30,167)					(9,927)					(299)
Net Fair Value in U.S.$						$ (30,167)					$ (9,927)					$ (299)
Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.2000		0.1991	0.2000	0.2000	0.2000	0.2000	0.2000	0.1991	0.1991	0.1991	0.1991	0.1991
Current Asset U.S.$						$ 666					$ 1,903
Current (Liability) U.S.$						0					0
Net Fair Value in U.S.$						$ 666					$ 1,903
Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.2013												0.2013	0.2013	0.2013	0.2013	0.2013
Current Asset U.S.$																$ 1,430
Current (Liability) U.S.$																(88)
Net Fair Value in U.S.$																$ 1,342
Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.6755	0.7172	0.6854	0.6755	0.6755	0.6755	0.6755	0.6755	0.6854	0.6854	0.6854	0.6854	0.6854	0.7172	0.7172	0.7172	0.7172	0.7172
Current Asset U.S.$						$ 578					$ 435					$ 602
Current (Liability) U.S.$						0					0					0
Net Fair Value in U.S.$						$ 578					$ 435					$ 602
Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate	1.2921			1.2921	1.2921	1.2921	1.2921	1.2921
Current Asset U.S.$						$ 2,469
Current (Liability) U.S.$						0
Net Fair Value in U.S.$						$ 2,469
Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate		1.3180	1.2869						1.2869	1.2869	1.2869	1.2869	1.2869	1.3180	1.3180	1.3180	1.3180	1.3180
Current Asset U.S.$											$ 11					$ 883
Current (Liability) U.S.$											(9,792)					(2,661)
Net Fair Value in U.S.$											$ (9,781)					$ (1,778)
Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.7592			0.7592	0.7592	0.7592	0.7592	0.7592
Current Asset U.S.$						$ 3,819
Current (Liability) U.S.$						0
Net Fair Value in U.S.$						$ 3,819
Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.7517	0.7602						0.7602	0.7602	0.7602	0.7602	0.7602	0.7517	0.7517	0.7517	0.7517	0.7517
Current Asset U.S.$											$ 2,877					$ 3,814
Current (Liability) U.S.$											(207)					(633)
Net Fair Value in U.S.$											$ 2,670					$ 3,181
Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise related | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.8787	0.8628	0.8492	0.8787	0.8787	0.8787	0.8787	0.8787	0.8492	0.8492	0.8492	0.8492	0.8492	0.8628	0.8628	0.8628	0.8628	0.8628
Current Asset U.S.$						$ 0					$ 655					$ 1,163
Current (Liability) U.S.$						(65)					0					0
Net Fair Value in U.S.$						$ (65)					$ 655					$ 1,163
Conversion of US Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.8724												0.8724	0.8724	0.8724	0.8724	0.8724
Current Asset U.S.$																$ 0
Current (Liability) U.S.$																(977)
Net Fair Value in U.S.$																$ (977)
Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.9001		0.8954	0.9001	0.9001	0.9001	0.9001	0.9001	0.8954	0.8954	0.8954	0.8954	0.8954
Current Asset U.S.$						$ 30					$ 10
Current (Liability) U.S.$						(404)					(235)
Net Fair Value in U.S.$						(374)					$ (225)
Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.6593												0.6593	0.6593	0.6593	0.6593	0.6593
Current Asset U.S.$																$ 0
Current (Liability) U.S.$																(142)
Net Fair Value in U.S.$																$ (142)
Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate			0.6801						0.6801	0.6801	0.6801	0.6801	0.6801
Current Asset U.S.$											$ 61
Current (Liability) U.S.$											(44)
Net Fair Value in U.S.$											17
Conversion of Zloty to Euro | International lease liabilities | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.2330												0.2330	0.2330	0.2330	0.2330	0.2330
Current Asset U.S.$																$ 0
Current (Liability) U.S.$																(473)
Net Fair Value in U.S.$																(473)
Pay | Diesel fuel contracts | (Accrued Exp) | Minimum
Derivatives, Fair Value [Line Items]
Derivative nonmonetary notional amount | gal / mo	2.9	2.4	2.9
Pay | Diesel fuel contracts | (Accrued Exp) | Maximum
Derivatives, Fair Value [Line Items]
Derivative nonmonetary notional amount | gal / mo	3.5	3.3	3.5
Pay | Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | zł								zł 69,400					zł 362,700
Pay | Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | zł																		zł 359,743
Pay | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount					$ 17,438					$ 29,400					$ 44,708
Pay | Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				£ 63,618
Pay | Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £									£ 265,653					£ 293,928
Pay | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount	$ 77,979
Pay | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount		$ 620,729	$ 609,340
Pay | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise related | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | €							€ 49,100					€ 58,700					€ 71,600
Pay | Conversion of US Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount																55,559
Pay | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount						30,651					49,849
Pay | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount		$ 27,377
Pay | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount			$ 37,051
Pay | Conversion of Zloty to Euro | International lease liabilities | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | zł																		zł 690,366
Receive | Diesel fuel contracts | (Accrued Exp) | Minimum
Derivatives, Fair Value [Line Items]
Derivative nonmonetary notional amount | gal / mo	2.9	2.4	2.9
Receive | Diesel fuel contracts | (Accrued Exp) | Maximum
Derivatives, Fair Value [Line Items]
Derivative nonmonetary notional amount | gal / mo	3.5	3.3	3.5
Receive | Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				13,880					72,217
Receive | Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £														72,401
Receive | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount						11,780					20,151					32,064
Receive | Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount						82,200
Receive | Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount											341,880					387,400
Receive | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount						$ 59,200
Receive | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount											$ 463,200					$ 466,600
Receive | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise related | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				£ 43,144					£ 49,848					£ 61,777
Receive | Conversion of US Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €																	48,467
Receive | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €							€ 27,588					44,635
Receive | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €																	18,050
Receive | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €												€ 25,200
Receive | Conversion of Zloty to Euro | International lease liabilities | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €																	€ 160,851
Fair value hedges | Conversion of Zloty to Pound | Intercompany balances, primarily debt and related interest: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.1966	0.2037	0.1984	0.1966	0.1966	0.1966	0.1966	0.1966	0.1984	0.1984	0.1984	0.1984	0.1984	0.2037	0.2037	0.2037	0.2037	0.2037
Current Asset U.S.$						$ 351					$ 270					$ 451
Current (Liability) U.S.$						0					0					0
Net Fair Value in U.S.$						$ 351					$ 270					$ 451
Fair value hedges | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt and related interest: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.7076	0.6782						0.6782	0.6782	0.6782	0.6782	0.6782	0.7076	0.7076	0.7076	0.7076	0.7076
Current Asset U.S.$											$ 275					$ 47
Current (Liability) U.S.$											0					0
Net Fair Value in U.S.$											$ 275					$ 47
Fair value hedges | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt and related interest: | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.6437			0.6437	0.6437	0.6437	0.6437	0.6437
Current Asset U.S.$						$ 1,788
Current (Liability) U.S.$						(1,656)
Net Fair Value in U.S.$						$ 132
Fair value hedges | Conversion of US Dollar to Pound | Intercompany balances, primarily debt and related interest: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.7637	0.7589						0.7589	0.7589	0.7589	0.7589	0.7589	0.7637	0.7637	0.7637	0.7637	0.7637
Current Asset U.S.$											$ 743					$ 1,261
Current (Liability) U.S.$											0					0
Net Fair Value in U.S.$											743					$ 1,261
Fair value hedges | Conversion of US Dollar to Pound | Intercompany balances, primarily debt and related interest: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.7589			0.7589	0.7589	0.7589	0.7589	0.7589
Current Asset U.S.$						$ 0
Current (Liability) U.S.$						(3,744)
Net Fair Value in U.S.$						$ (3,744)
Fair value hedges | Conversion of Pound to US Dollar | Intercompany balances, primarily debt and related interest: | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate	1.2475			1.2475	1.2475	1.2475	1.2475	1.2475
Current Asset U.S.$						$ 999
Current (Liability) U.S.$						(2,332)
Net Fair Value in U.S.$						$ (1,333)
Fair value hedges | Conversion of Canadian Dollar to US Dollar | Intercompany balances, primarily debt and related interest: | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.7109			0.7109	0.7109	0.7109	0.7109	0.7109
Current Asset U.S.$						$ 640
Current (Liability) U.S.$						(478)
Net Fair Value in U.S.$						$ 162
Fair value hedges | Conversion of Euro to Pound | Intercompany balances, primarily debt and related interest: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate	0.8902	0.8858		0.8902	0.8902	0.8902	0.8902	0.8902						0.8858	0.8858	0.8858	0.8858	0.8858
Current Asset U.S.$						$ 437										$ 2,160
Current (Liability) U.S.$						0										0
Net Fair Value in U.S.$						437										2,160
Fair value hedges | Pay | Conversion of Zloty to Pound | Intercompany balances, primarily debt and related interest: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | zł								zł 65,000					zł 45,000					zł 59,000
Fair value hedges | Pay | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt and related interest: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount										$ 50,000					$ 30,000
Fair value hedges | Pay | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt and related interest: | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount					$ 110,000
Fair value hedges | Pay | Conversion of US Dollar to Pound | Intercompany balances, primarily debt and related interest: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount											72,475					72,020
Fair value hedges | Pay | Conversion of US Dollar to Pound | Intercompany balances, primarily debt and related interest: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount						72,475
Fair value hedges | Pay | Conversion of Pound to US Dollar | Intercompany balances, primarily debt and related interest: | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				£ 200,000
Fair value hedges | Pay | Conversion of Canadian Dollar to US Dollar | Intercompany balances, primarily debt and related interest: | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount	$ 350,000
Fair value hedges | Pay | Conversion of Euro to Pound | Intercompany balances, primarily debt and related interest: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | €							€ 60,000										€ 55,950
Fair value hedges | Receive | Conversion of Zloty to Pound | Intercompany balances, primarily debt and related interest: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				12,780					£ 8,930					£ 12,021
Fair value hedges | Receive | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt and related interest: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount											$ 33,911					$ 21,228
Fair value hedges | Receive | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt and related interest: | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount						70,802
Fair value hedges | Receive | Conversion of US Dollar to Pound | Intercompany balances, primarily debt and related interest: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | £									£ 55,000					55,000
Fair value hedges | Receive | Conversion of US Dollar to Pound | Intercompany balances, primarily debt and related interest: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				55,000
Fair value hedges | Receive | Conversion of Pound to US Dollar | Intercompany balances, primarily debt and related interest: | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount						249,499
Fair value hedges | Receive | Conversion of Canadian Dollar to US Dollar | Intercompany balances, primarily debt and related interest: | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount						$ 248,821
Fair value hedges | Receive | Conversion of Euro to Pound | Intercompany balances, primarily debt and related interest: | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				£ 53,412										£ 49,560