XML 73 R57.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Inventories - Summary of Inventories (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Sep. 30, 2019
Inventory Disclosure [Abstract]    
Finished products $ 443 $ 400
Raw materials, supplies and work in process 190 197
Total $ 633 $ 597