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Note 2, Inventories (Tables)
9 Months Ended
Jun. 30, 2017
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventories consisted of the following:
(in millions)
 
June 30,
2017
 
September 30,
2016
Raw materials and supplies
 
$
494

 
$
502

Work-in-process
 
36

 
35

Finished goods
 
124

 
123

Inventories
 
$
654

 
$
660