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Inventories (Tables)
9 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Inventories

Inventories consisted of the following (in millions):
 
June 30, 2019
 
September 30, 2018
 
 
 
 
Raw materials and supplies
$
685

 
$
606

Work-in-process
215

 
155

Finished goods
1,150

 
1,058

Inventories
$
2,050

 
$
1,819