Commitments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012
Commitments [Line Items]
Rental expense under operating leases for continuing operations	$ 1,321.6	$ 1,238.2	$ 1,171.6
Contingent rent paid	15.2	15.7	15.0
Sublease income	0.8	0.9	0.9
Total net present value of minimum operating lease obligations	6,499.2
Construction-in-progress	60.7
Outstanding letters of credit issued for the purchase of inventory	$ 42.9	$ 55.3
Tjx Us And Canada | Maximum
Commitments [Line Items]
Operating leases term, years				10 years
Tjx Us And Canada | Minimum
Commitments [Line Items]
Operating leases term, years				5 years
Options to extend for one of more five-year periods				1 year
TJX Europe | Maximum
Commitments [Line Items]
Operating leases term, years				15 years
Optional lease kick-out term, years				10 years