WARRANTY, COMMITMENTS AND CONTINGENCIES OPERATING LEASE COMMITMENTS - RENT EXPENSE (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2017 |
Apr. 30, 2016 |
Apr. 30, 2017 |
Apr. 30, 2016 |
|
| Commitments and Contingencies Disclosure [Abstract] | ||||
| Operating Leases, Rent Expense | $ 11 | $ 12 | $ 23 | $ 23 |