|
Inventory (Details) (USD $)
In Millions |
Apr. 30, 2011
|
Oct. 31, 2010
|
|---|---|---|
| Inventory [Abstract] | Â | Â |
| Finished goods | $ 407 | $ 338 |
| Purchased parts and fabricated assemblies | 446 | 378 |
| Inventory | $ 853 | $ 716 |