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INVESTMENTS (Tables) | 12 Months Ended
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Oct. 31, 2021
Schedule of Investments [Abstract] |
Investment | The following table summarizes the company's equity investments as of October 31, 2021 and 2020 (net book value):
| October 31,
| 2021 |  | 2020
| (in millions)
Short-Term |  |  |
Equity investments - with readily determinable fair value | $ | 91 |  |  | — |
Long-Term |  |  |
Equity investments - without readily determinable fair value | $ | 120 |  |  | $ | 103 |
Equity investments - with readily determinable fair value | 31 |  |  | 25 |
Trading securities | 34 |  |  | 30 |
Total long-term investments | $ | 185 |  |  | $ | 158 |
Gain (Loss) on Securities | Gains and losses reflected in other income (expense), net for our equity investments with RDFV and equity investments without RDFV are summarized below:
| Years Ended October 31,
| 2021 |  | 2020 |  | 2019
| ( in millions)
Net gain recognized during the period on equity securities | $ | 98 |  |  | $ | 27 |  |  | $ | 4 |
Less: Net gain on equity securities sold during the period | (6) |  |  | — |  |  | — |
Unrealized gain on equity securities held as of the end of the period | $ | 92 |  |  | $ | 27 |  |  | $ | 4 |

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