INVESTMENTS (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Oct. 31, 2017 |
Oct. 31, 2016 |
Oct. 31, 2015 |
|
| Cost method investment, VIE | $ 80 | ||
| Fair value of equity method investment | $ 0 | ||
| Long-Term [Abstract] | |||
| Cost method investments | 106 | 104 | |
| Trading securities | 32 | 31 | |
| Total | 138 | 135 | |
| Amounts included in other income (expense), net [Abstract] | |||
| Equity method investments - share of losses | 0 | (10) | $ (9) |
| Other-than-temporary impairment of equity method investment | 0 | (18) | 0 |
| Income Loss and impairment loss From Equity Method Investments | 0 | (28) | (9) |
| Net unrealized gains and losses on trading securities | $ 4 | $ 1 | $ 2 |