Quarterly report pursuant to Section 13 or 15(d)

Composition of Certain Financial Statement Items Inventories (Details)

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Composition of Certain Financial Statement Items Inventories (Details) - USD ($)
$ in Millions
Jun. 30, 2019
Sep. 30, 2018
Inventory, Net [Abstract]    
Raw materials $ 81 $ 72
Work-in-process 896 715
Finished goods 797 906
Total inventories $ 1,774 $ 1,693