|
Net Property (Details) (USD $)
In Millions, unless otherwise specified
|
Mar. 31, 2015
|
Sep. 30, 2014
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property at cost |
$ 1,297 |
$ 1,397 |
| Less accumulated depreciation |
(910) |
(973) |
| Net property |
387 |
424 |
| Land and land improvements |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property at cost |
32 |
34 |
| Buildings |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property at cost |
219 |
236 |
| Machinery and equipment |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property at cost |
860 |
906 |
| Company-owned tooling |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property at cost |
137 |
155 |
| Construction in progress |
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Property at cost |
$ 49 |
$ 66 |