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Segment Information - Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 03, 2019	Aug. 04, 2018	Aug. 03, 2019	Aug. 04, 2018	Feb. 03, 2019
Segment Reporting Information [Line Items]
Net sales	$ 9,781,596	$ 9,331,115	$ 19,059,181	$ 18,019,835
General corporate expense	1,731,335	1,699,714	3,433,736	3,250,489
Interest expense, net	2,897	3,029	3,714	7,177
Income before provision for income taxes	1,021,307	992,557	1,957,789	1,948,115
Operating lease right of use assets	8,944,302		8,944,302		$ 8,704,584
Marmaxx
Segment Reporting Information [Line Items]
Net sales	6,106,697	5,847,721	11,908,457	11,228,639
Operating lease right of use assets	4,500,000		4,500,000
HomeGoods
Segment Reporting Information [Line Items]
Net sales	1,424,836	1,327,346	2,821,701	2,596,677
Operating lease right of use assets	1,400,000		1,400,000
TJX Canada
Segment Reporting Information [Line Items]
Net sales	967,460	937,736	1,815,195	1,791,572
Operating lease right of use assets	1,000,000		1,000,000
TJX International
Segment Reporting Information [Line Items]
Net sales	1,282,603	1,218,312	2,513,828	2,402,947
Operating lease right of use assets	2,000,000		2,000,000
Operating segments
Segment Reporting Information [Line Items]
Segment profit	1,152,817	1,159,831	2,211,114	2,223,657
Operating segments \| Marmaxx
Segment Reporting Information [Line Items]
Segment profit	855,199	830,315	1,651,192	1,580,771
Operating segments \| HomeGoods
Segment Reporting Information [Line Items]
Segment profit	128,942	142,090	265,727	289,450
Operating segments \| TJX Canada
Segment Reporting Information [Line Items]
Segment profit	118,217	138,735	215,249	263,919
Operating segments \| TJX International
Segment Reporting Information [Line Items]
Segment profit	50,459	48,691	78,946	89,517
Corporate
Segment Reporting Information [Line Items]
General corporate expense	$ 128,613	$ 164,245	$ 249,611	$ 268,365