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Inventories - Summary of Inventory Components (Details) - USD ($)
$ in Millions
May 05, 2018
Feb. 03, 2018
Apr. 29, 2017
Inventory Disclosure [Abstract]      
Raw materials $ 69.7 $ 72.0 $ 51.2
Finished goods 2,359.3 2,208.5 2,381.2
Total inventories $ 2,429.0 $ 2,280.5 $ 2,432.4