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Inventories (Tables)
6 Months Ended
Apr. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of inventories
(In millions)
April 30, 2020
 
October 31, 2019
Raw materials
$
141.1

 
$
131.4

Work-in-process
13.0
 
13.3
Finished goods
414.1
 
362.2
Total inventories
$
568.2

 
$
506.9