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INVESTMENTS (Tables) | 12 Months Ended
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Oct. 31, 2019
Schedule of Investments [Abstract] |
Equity Investments | The following table summarizes the company's equity investments as of October 31, 2019 and 2018 (net book value):
| October 31,
| 2019 |  | 2018
| (in millions)
Long-Term |  |  |
Equity investments - without readily determinable fair value | $ | 47 |  |  | $ | 23 |
Equity investments - with readily determinable fair value | 25 |  |  | 15 |
Trading securities | 30 |  |  | 30 |
Total | $ | 102 |  |  | $ | 68 |

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