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Inventories
6 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Inventories
Inventories

Inventories consisted of the following (in millions):
 
March 31, 2020
 
September 30, 2019
 
 
 
 
Raw materials and supplies
$
646

 
$
588

Work-in-process
177

 
176

Finished goods
1,207

 
1,050

Inventories
$
2,030

 
$
1,814