Segment Information - Financial Information on Business Segments (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jul. 31, 2021	Jan. 29, 2022	Jan. 30, 2021	Feb. 01, 2020
Segment Reporting Information [Line Items]
Net sales		$ 48,549,982	$ 32,136,962	$ 41,716,977
General corporate expense		9,081,238	7,020,917	7,454,988
Loss on early extinguishment of debt	$ 242,000	242,248	312,233	0
Interest expense, net		115,076	180,734	10,026
Income before income taxes		4,397,608	89,263	4,406,183
Identifiable assets		28,461,458	30,813,555	24,145,003
Capital expenditures		1,044,794	568,021	1,223,116
Depreciation and amortization		868,002	870,758	867,303
Operating segments
Segment Reporting Information [Line Items]
Segment profit		5,366,022	1,021,267	4,972,954
Corporate
Segment Reporting Information [Line Items]
General corporate expense		611,090	439,037	556,745
Identifiable assets		7,292,905	11,317,381	4,023,043
Depreciation and amortization		7,489	9,989	5,080
Marmaxx | Operating segments
Segment Reporting Information [Line Items]
Net sales		29,483,073	19,362,573	25,664,805
Segment profit		3,812,847	891,180	3,469,794
Identifiable assets		11,230,232	10,220,441	11,162,890
Capital expenditures		514,141	216,186	614,624
Depreciation and amortization		464,660	478,963	473,908
HomeGoods | Operating segments
Segment Reporting Information [Line Items]
Net sales		8,995,140	6,096,237	6,355,770
Segment profit		907,391	509,562	680,520
Identifiable assets		3,460,830	2,851,131	2,785,006
Capital expenditures		243,551	162,200	251,864
Depreciation and amortization		149,130	135,205	124,360
TJX Canada | Operating segments
Segment Reporting Information [Line Items]
Net sales		4,342,538	2,836,088	4,031,406
Segment profit		484,585	124,143	515,559
Identifiable assets		2,196,895	2,035,341	1,889,679
Capital expenditures		68,585	43,879	101,862
Depreciation and amortization		72,507	70,777	66,693
TJX International | Operating segments
Segment Reporting Information [Line Items]
Net sales		5,729,231	3,842,064	5,664,996
Segment profit		161,199	(503,618)	307,081
Identifiable assets		4,280,596	4,389,261	4,284,385
Capital expenditures		218,517	145,756	254,766
Depreciation and amortization		$ 174,216	$ 175,824	$ 197,262