Segment Information - Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Nov. 03, 2018	Oct. 28, 2017	Nov. 03, 2018	Oct. 28, 2017
Segment Reporting Information [Line Items]
Net sales	$ 9,825,759	$ 8,762,220	$ 27,845,594	$ 24,903,944
Segment profit	1,213,603	1,123,465	3,437,260	3,082,884
General corporate expense	127,775	95,484	396,140	311,177
Pension settlement charge	36,122	0	36,122	0
Interest expense, net	3,188	7,981	10,365	27,499
Income before provision for income taxes	1,046,518	1,020,000	2,994,633	2,744,208
Marmaxx
Segment Reporting Information [Line Items]
Net sales	5,973,476	5,298,479	17,202,115	15,550,253
Segment profit	762,911	666,092	2,343,682	2,100,138
HomeGoods
Segment Reporting Information [Line Items]
Net sales	1,463,892	1,228,768	4,060,569	3,506,435
Segment profit	166,090	163,835	455,540	457,272
TJX Canada
Segment Reporting Information [Line Items]
Net sales	1,036,884	983,236	2,828,456	2,554,033
Segment profit	182,170	206,472	446,089	392,581
TJX International
Segment Reporting Information [Line Items]
Net sales	1,351,507	1,251,737	3,754,454	3,293,223
Segment profit	$ 102,432	$ 87,066	$ 191,949	$ 132,893

General corporate expenses.

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