Rendering

Component: (Network and Table)
Network
100560 - Disclosure - Inventories - Components of Company's Inventories (Detail)
(http://www.cabot-corp.com/20160930/taxonomy/role/DisclosureInventoriesComponentsOfCompanySInventoriesDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000016040 (http://www.sec.gov/CIK)
Inventory Disclosure [Abstract]Period [Axis]
2016-09-30
2015-09-30
Inventory Disclosure [Abstract]
 
 
Raw materials
66,000,000  
69,000,000  
Work in process
1,000,000  
1,000,000  
Finished goods
237,000,000  
287,000,000  
Other
38,000,000  
40,000,000  
Total
342,000,000  
 
397,000,000