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Inventories
6 Months Ended
Mar. 31, 2022
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories consisted of the following (in millions):
March 31, 2022September 30, 2021
Raw materials and supplies$998 $769 
Work-in-process212 166 
Finished goods1,305 1,122 
Inventories$2,515 $2,057