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Note 3. Inventories (Tables)
3 Months Ended
Dec. 31, 2017
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventories consisted of the following:
(in millions)
 
December 31, 2017
 
September 30, 2017
Raw materials and supplies
 
$
559

 
$
552

Work-in-process
 
41

 
37

Finished goods
 
162

 
146

Inventories
 
$
762

 
$
735