Financial Information on Business Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Segment Reporting Information [Line Items]
Net sales	$ 8,357,700	$ 7,882,053	$ 16,141,724	$ 15,424,409
Segment profit	1,010,422	1,035,194	1,959,419	1,954,080
General corporate expense	109,045	109,350	215,693	193,073
Interest expense, net	9,677	11,262	19,518	21,456
Income before provision for income taxes	891,700	914,582	1,724,208	1,739,551
Marmaxx
Segment Reporting Information [Line Items]
Net sales	5,284,639	5,098,998	10,251,774	9,964,373
Segment profit	746,881	742,289	1,434,046	1,451,146
HomeGoods
Segment Reporting Information [Line Items]
Net sales	1,156,398	986,663	2,277,667	1,997,099
Segment profit	141,345	128,047	293,437	266,257
TJX Canada
Segment Reporting Information [Line Items]
Net sales	832,026	756,781	1,570,797	1,442,358
Segment profit	83,229	121,979	186,109	179,451
TJX International
Segment Reporting Information [Line Items]
Net sales	1,084,637	1,039,611	2,041,486	2,020,579
Segment profit	$ 38,967	$ 42,879	$ 45,827	$ 57,226