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	9 Months Ended
	May 02, 2020 gal / mo	Oct. 31, 2020 PLN (zł) gal / mo	Nov. 02, 2019 PLN (zł) gal / mo	Oct. 31, 2020 GBP (£)	Oct. 31, 2020 USD ($)	Oct. 31, 2020 EUR (€)	Oct. 31, 2020 AUD ($)	Oct. 31, 2020 CAD ($)	Feb. 01, 2020 PLN (zł)	Feb. 01, 2020 GBP (£)	Feb. 01, 2020 USD ($)	Feb. 01, 2020 EUR (€)	Feb. 01, 2020 AUD ($)	Feb. 01, 2020 CAD ($)	Nov. 02, 2019 GBP (£)	Nov. 02, 2019 USD ($)	Nov. 02, 2019 EUR (€)	Nov. 02, 2019 AUD ($)	Nov. 02, 2019 CAD ($)
Derivatives, Fair Value [Line Items]
Current Asset U.S.$					$ 9,111						$ 7,240					$ 8,358
Current (Liability) U.S.$					(35,454)						(20,205)					(23,307)
Net Fair Value in U.S.$					(26,343)						(12,965)					(14,949)
Diesel fuel contracts | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Current Asset U.S.$					0						0					0
Current (Liability) U.S.$					(15,078)						(9,927)					(3,878)
Net Fair Value in U.S.$					$ (15,078)						$ (9,927)					$ (3,878)
Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.2016		0.2016	0.2016	0.2016	0.2016	0.2016	0.1991	0.1991	0.1991	0.1991	0.1991	0.1991
Current Asset U.S.$					$ 2,189						$ 1,903
Current (Liability) U.S.$					0						0
Net Fair Value in U.S.$					$ 2,189						$ 1,903
Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate			0.2067												0.2067	0.2067	0.2067	0.2067	0.2067
Current Asset U.S.$																$ 2,192
Current (Liability) U.S.$																(148)
Net Fair Value in U.S.$																$ 2,044
Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise related | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate			0.8852						0.8492	0.8492	0.8492	0.8492	0.8492	0.8492	0.8852	0.8852	0.8852	0.8852	0.8852
Current Asset U.S.$											$ 655					$ 2,411
Current (Liability) U.S.$											0					0
Net Fair Value in U.S.$											$ 655					$ 2,411
Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.7163		0.7163	0.7163	0.7163	0.7163	0.7163	0.6854	0.6854	0.6854	0.6854	0.6854	0.6854
Current Asset U.S.$					$ 600						$ 435
Current (Liability) U.S.$					0						0
Net Fair Value in U.S.$					$ 600						$ 435
Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate			0.6840												0.6840	0.6840	0.6840	0.6840	0.6840
Current Asset U.S.$																$ 46
Current (Liability) U.S.$																(414)
Net Fair Value in U.S.$																$ (368)
Conversion of US Dollar to Pound | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Blended Contract Rate			0.7813												0.7813	0.7813	0.7813	0.7813	0.7813
Current Asset U.S.$																$ 23
Current (Liability) U.S.$																0
Net Fair Value in U.S.$																$ 23
Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate		1.2827	1.2548	1.2827	1.2827	1.2827	1.2827	1.2827	1.2869	1.2869	1.2869	1.2869	1.2869	1.2869	1.2548	1.2548	1.2548	1.2548	1.2548
Current Asset U.S.$					$ 1,050						$ 11					$ 373
Current (Liability) U.S.$					(6,768)						(9,792)					(14,122)
Net Fair Value in U.S.$					$ (5,718)						$ (9,781)					$ (13,749)
Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.7545	0.7580	0.7545	0.7545	0.7545	0.7545	0.7545	0.7602	0.7602	0.7602	0.7602	0.7602	0.7602	0.7580	0.7580	0.7580	0.7580	0.7580
Current Asset U.S.$					$ 3,328						$ 2,877					$ 808
Current (Liability) U.S.$					(1,152)						(207)					(2,960)
Net Fair Value in U.S.$					$ 2,176						$ 2,670					$ (2,152)
Conversion of US Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.8507		0.8507	0.8507	0.8507	0.8507	0.8507
Current Asset U.S.$					$ 0
Current (Liability) U.S.$					(394)
Net Fair Value in U.S.$					(394)
Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate			0.8895						0.8954	0.8954	0.8954	0.8954	0.8954	0.8954	0.8895	0.8895	0.8895	0.8895	0.8895
Current Asset U.S.$											$ 10					$ 304
Current (Liability) U.S.$											(235)					(614)
Net Fair Value in U.S.$											$ (225)					$ (310)
Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate			0.6779						0.6801	0.6801	0.6801	0.6801	0.6801	0.6801	0.6779	0.6779	0.6779	0.6779	0.6779
Current Asset U.S.$											$ 61					$ 36
Current (Liability) U.S.$											(44)					(111)
Net Fair Value in U.S.$											17					(75)
Pay | Diesel fuel contracts | (Accrued Exp) | Minimum
Derivatives, Fair Value [Line Items]
Derivative nonmonetary notional amount | gal / mo	2.9	2.9	2.7
Pay | Diesel fuel contracts | (Accrued Exp) | Maximum
Derivatives, Fair Value [Line Items]
Derivative nonmonetary notional amount | gal / mo	3.5	3.5	3.3
Pay | Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | zł		zł 264,400							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 369,290
Pay | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise related | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | €												€ 58,700					€ 86,800
Pay | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount							$ 45,584						$ 29,400
Pay | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount																		$ 42,054
Pay | Conversion of US Dollar to Pound | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount																2,254
Pay | Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				£ 415,653						£ 265,653					£ 308,166
Pay | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount								$ 637,508						$ 609,340					$ 642,859
Pay | Conversion of US Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount					53,605
Pay | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount											49,849					69,558
Pay | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount														$ 37,051					$ 31,863
Receive | Diesel fuel contracts | (Accrued Exp) | Minimum
Derivatives, Fair Value [Line Items]
Derivative nonmonetary notional amount | gal / mo	2.9	2.9	2.7
Receive | Diesel fuel contracts | (Accrued Exp) | Maximum
Derivatives, Fair Value [Line Items]
Derivative nonmonetary notional amount | gal / mo	3.5	3.5	3.3
Receive | Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				£ 53,293						72,217
Receive | Conversion of Zloty to Pound | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £															76,343
Receive | Conversion of Euro to Pound | Intercompany billings in TJX International, primarily merchandise related | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | £										£ 49,848					76,837
Receive | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount					32,650						20,151
Receive | Conversion of Australian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount																28,767
Receive | Conversion of US Dollar to Pound | Merchandise purchase commitments | Prepaid Exp
Derivatives, Fair Value [Line Items]
Derivative notional amount | £															£ 1,761
Receive | Conversion of Pound to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount					533,150						341,880					386,700
Receive | Conversion of Canadian Dollar to US Dollar | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount					$ 481,000						$ 463,200					$ 487,300
Receive | Conversion of US Dollar to Euro | Merchandise purchase commitments | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €						€ 45,600
Receive | Conversion of US Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €												44,635					61,875
Receive | Conversion of Canadian Dollar to Euro | Merchandise purchase commitments | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €												€ 25,200					€ 21,600
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			0.2054						0.1984	0.1984	0.1984	0.1984	0.1984	0.1984	0.2054	0.2054	0.2054	0.2054	0.2054
Current Asset U.S.$											$ 270					$ 246
Current (Liability) U.S.$											0					0
Net Fair Value in U.S.$											$ 270					$ 246
Fair value hedges | Conversion of Zloty to Pound | Intercompany balances, primarily debt and related interest: | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.1966		0.1966	0.1966	0.1966	0.1966	0.1966
Current Asset U.S.$					$ 195
Current (Liability) U.S.$					(68)
Net Fair Value in U.S.$					$ 127
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			0.8980												0.8980	0.8980	0.8980	0.8980	0.8980
Current Asset U.S.$																$ 1,919
Current (Liability) U.S.$																0
Net Fair Value in U.S.$																$ 1,919
Fair value hedges | Conversion of Euro to Pound | Intercompany balances, primarily debt and related interest: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate		0.8902		0.8902	0.8902	0.8902	0.8902	0.8902
Current Asset U.S.$					$ 0
Current (Liability) U.S.$					(904)
Net Fair Value in U.S.$					$ (904)
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		0.7252		0.7252	0.7252	0.7252	0.7252	0.7252	0.6782	0.6782	0.6782	0.6782	0.6782	0.6782
Current Asset U.S.$					$ 1,749						$ 275
Current (Liability) U.S.$					0						0
Net Fair Value in U.S.$					$ 1,749						$ 275
Fair value hedges | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt and related interest: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Blended Contract Rate			0.6874												0.6874	0.6874	0.6874	0.6874	0.6874
Current Asset U.S.$																$ 0
Current (Liability) U.S.$																(303)
Net Fair Value in U.S.$																$ (303)
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									0.7589	0.7589	0.7589	0.7589	0.7589	0.7589
Current Asset U.S.$											$ 743
Current (Liability) U.S.$											0
Net Fair Value in U.S.$											743
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	0.7637	0.7589	0.7589	0.7589	0.7589	0.7589							0.7637	0.7637	0.7637	0.7637	0.7637
Current Asset U.S.$					$ 0											$ 0
Current (Liability) U.S.$					(1,280)											(757)
Net Fair Value in U.S.$					$ (1,280)											(757)
Fair value hedges | Conversion of Pound to US Dollar | Intercompany balances, primarily debt and related interest: | (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.$					$ 0
Current (Liability) U.S.$					(9,810)
Net Fair Value in U.S.$					(9,810)
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 64,000						zł 45,000
Fair value hedges | Pay | Conversion of Zloty to Pound | Intercompany balances, primarily debt and related interest: | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | zł		zł 65,000
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 | €																	€ 46,450
Fair value hedges | Pay | Conversion of Euro to Pound | Intercompany balances, primarily debt and related interest: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | €						€ 60,000
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							$ 80,000						$ 50,000
Fair value hedges | Pay | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt and related interest: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount																		$ 50,000
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
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											72,020
Fair value hedges | Pay | Conversion of Pound to US Dollar | Intercompany balances, primarily debt and related interest: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				£ 200,000
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 | £										£ 8,930					£ 13,144
Fair value hedges | Receive | Conversion of Zloty to Pound | Intercompany balances, primarily debt and related interest: | Prepaid Exp / (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				12,780
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 | £															41,712
Fair value hedges | Receive | Conversion of Euro to Pound | Intercompany balances, primarily debt and related interest: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount | £				53,412
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					58,016						$ 33,911
Fair value hedges | Receive | Conversion of Australian Dollar to US Dollar | Intercompany balances, primarily debt and related interest: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount																$ 34,370
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
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											£ 55,000
Fair value hedges | Receive | Conversion of Pound to US Dollar | Intercompany balances, primarily debt and related interest: | (Accrued Exp)
Derivatives, Fair Value [Line Items]
Derivative notional amount					$ 249,499