DERIVATIVES, Effect of derivative instruments on Consolidated Statement of Operations (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2017 |
Apr. 30, 2016 |
Apr. 30, 2017 |
Apr. 30, 2016 |
|
| Derivative [Line Items] | ||||
| Cash Flow Hedge (Gain) Loss to be Reclassified within Twelve Months | $ 1 | |||
| Designated as Hedging Instruments | Cash Flow Hedging | Foreign Exchange Contracts | Accumulated Other Comprehensive Income (Loss) | ||||
| Derivative [Line Items] | ||||
| Gain (loss) recognized in accumulated other comprehensive income | $ (1) | $ (3) | 2 | $ (1) |
| Designated as Hedging Instruments | Cash Flow Hedging | Foreign Exchange Contracts | Cost of products and services | ||||
| Derivative [Line Items] | ||||
| Gain (loss) reclassified from accumulated other comprehensive income into cost of sales | (1) | (3) | (2) | (7) |
| Not Designated as Hedging Instrument [Member] | Other (income) expense, net | ||||
| Derivative [Line Items] | ||||
| Gain (loss) recognized in other income (expense),net | $ 0 | $ 0 | $ 2 | $ (2) |