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FAIR VALUE MEASUREMENTS (Tables) | 12 Months Ended
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Oct. 31, 2019
Fair Value Disclosures [Abstract] |
Fair Value Assets And Liabilities Measured On Recurring Basis | Financial assets and liabilities measured at fair value on a recurring basis as of October 31, 2019 were as follows:
|  |  | Fair Value Measurement at October 31, 2019 Using
| October 31, 2019 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
| (in millions)
Assets: |  |  |  |  |  |  |
Short-term |  |  |  |  |  |  |
Cash equivalents (money market funds) | $ | 784 |  |  | $ | 784 |  |  | $ | — |  |  | $ | — |
Derivative instruments (foreign exchange contracts) | 12 |  |  | — |  |  | 12 |  |  | — |
Long-term |  |  |  |  |  |  |
Trading securities | 30 |  |  | 30 |  |  | — |  |  | — |
Other investments | 25 |  |  | — |  |  | 25 |  |  | — |
Total assets measured at fair value | $ | 851 |  |  | $ | 814 |  |  | $ | 37 |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |
Short-term |  |  |  |  |  |  |
Derivative instruments (foreign exchange contracts) | $ | 6 |  |  | $ | — |  |  | $ | 6 |  |  | $ | — |
Long-term |  |  |  |  |  |  |
Deferred compensation liability | 30 |  |  | — |  |  | 30 |  |  | — |
Total liabilities measured at fair value | $ | 36 |  |  | $ | — |  |  | $ | 36 |  |  | $ | — |
Financial assets and liabilities measured at fair value on a recurring basis as of October 31, 2018 were as follows:
|  |  | Fair Value Measurement at October 31, 2018 Using
| October 31, 2018 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
| (in millions)
Assets: |  |  |  |  |  |  |
Short-term |  |  |  |  |  |  |
Cash equivalents (money market funds) | $ | 1,355 |  |  | $ | 1,355 |  |  | $ | — |  |  | $ | — |
Derivative instruments (foreign exchange contracts) | 16 |  |  | — |  |  | 16 |  |  | — |
Long-term |  |  |  |  |  |  |
Trading securities | 30 |  |  | 30 |  |  | — |  |  | — |
Total assets measured at fair value | $ | 1,401 |  |  | $ | 1,385 |  |  | $ | 16 |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |
Short-term |  |  |  |  |  |  |
Derivative instruments (foreign exchange contracts) | $ | 5 |  |  | $ | — |  |  | $ | 5 |  |  | $ | — |
Long-term |  |  |  |  |  |  |
Deferred compensation liability | 30 |  |  | — |  |  | 30 |  |  | — |
Total liabilities measured at fair value | $ | 35 |  |  | $ | — |  |  | $ | 35 |  |  | $ | — |
Impairment of Long-lived assets included in net income | For assets measured at fair value on a non-recurring basis, the following table summarizes the impairments included in net income for the years ended October 31, 2019, 2018 and 2017:
| Years Ended October 31,
| 2019 |  | 2018 |  | 2017
| (in millions)
Long-lived assets held and used | $ | — |  |  | $ | 21 |  |  | $ | — |
Long-lived assets held for sale | $ | — |  |  | $ | — |  |  | $ | — |

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- Definition For long-lived assets of an entity, disclosures may include a description of the impaired long-lived asset and facts and circumstances leading to the impairment, amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired long-lived asset is reported. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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