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Inventories (Tables)
6 Months Ended
Mar. 31, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventory The components of inventories are as follows:
 
 
31 March
 
30 September
 
 
2019
 
2018
Finished goods
 

$140.4

 

$125.4

Work in process
 
23.6

 
21.2

Raw materials, supplies and other
 
244.3

 
249.5

Inventories
 

$408.3

 

$396.1