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Inventories (Notes)
 12 Months Ended
Jan. 31, 2018
Inventory Disclosure [Abstract]  
Inventories
INVENTORIES
 
January 31,
 
(in millions)
2018

2017

Finished goods
          $
1,314.6

          $
1,249.4

Raw materials
821.4

806.3

Work-in-process
117.5

101.9

Inventories, net
          $
2,253.5

          $
2,157.6