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Commitments - Additional Information (Detail)
$ in Millions
 12 Months Ended
Jan. 30, 2016
USD ($)
Lease_Agreements
Jan. 31, 2015
USD ($)
Feb. 01, 2014
USD ($)
Jan. 28, 2012
Commitments [Line Items]        
Rental expense under operating leases for continuing operations $ 1,365.6 $ 1,321.6 $ 1,238.2  
Contingent rent paid 15.7 15.2 15.7  
Sublease income $ 0.9 0.8 $ 0.9  
Number of lease agreements | Lease_Agreements 2      
Outstanding letters of credit issued for the purchase of inventory $ 29.3 $ 42.9    
Other Long Term Liabilities        
Commitments [Line Items]        
Liabilities $ 85.2      
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