|
Inventories (Details) (USD $)
In Millions, unless otherwise specified |
Mar. 31, 2015
|
Sep. 30, 2014
|
|---|---|---|
| Inventory Disclosure [Abstract] | ||
| Finished goods | $ 142 | $ 146 |
| Work in process | 30 | 36 |
| Raw materials, parts and supplies | 193 | 197 |
| Total | $ 365 | $ 379 |