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Inventories - Summary of Inventory Components (Details) - USD ($)
$ in Millions
Jul. 29, 2017
Jan. 28, 2017
Jul. 30, 2016
Inventory Disclosure [Abstract]      
Raw materials $ 56.1 $ 60.8 $ 75.4
Finished goods 2,226.0 2,388.5 2,342.9
Total inventories $ 2,282.1 $ 2,449.3 $ 2,418.3