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Segment Information - Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended
	May 04, 2019	May 05, 2018	Feb. 03, 2019
Segment Reporting Information [Line Items]
Net sales	$ 9,277,585	$ 8,688,720
General corporate expense	1,702,401	1,550,775
Interest expense, net	817	4,148
Income before provision for income taxes	936,482	955,558
Operating lease right of use assets	8,810,367		$ 8,704,584
Marmaxx
Segment Reporting Information [Line Items]
Net sales	5,801,760	5,380,918
Operating lease right of use assets	4,300,000
HomeGoods
Segment Reporting Information [Line Items]
Net sales	1,396,865	1,269,331
Operating lease right of use assets	1,400,000
TJX Canada
Segment Reporting Information [Line Items]
Net sales	847,735	853,836
Operating lease right of use assets	1,000,000
TJX International
Segment Reporting Information [Line Items]
Net sales	1,231,225	1,184,635
Operating lease right of use assets	2,100,000
Operating segments
Segment Reporting Information [Line Items]
Segment profit	1,058,297	1,063,826
Operating segments \| Marmaxx
Segment Reporting Information [Line Items]
Segment profit	795,993	750,456
Operating segments \| HomeGoods
Segment Reporting Information [Line Items]
Segment profit	136,785	147,360
Operating segments \| TJX Canada
Segment Reporting Information [Line Items]
Segment profit	97,032	125,184
Operating segments \| TJX International
Segment Reporting Information [Line Items]
Segment profit	28,487	40,826
Corporate
Segment Reporting Information [Line Items]
General corporate expense	$ 120,998	$ 104,120