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FAIR VALUE MEASUREMENTS, Fair value of assets and liabilities measured on a recurring basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions | Apr. 30, 2025 | Oct. 31, 2024
--- | --- | ---
Assets |  |
Total assets measured at fair value | $ 923 | $ 888
Liabilities |  |
Total liabilities measured at fair value | 64 | 55
Other Current Assets |  |
Assets |  |
Cash equivalents (money market funds) | 832 | 800
Derivative instruments (foreign exchange contracts) | 18 | 14
Other assets |  |
Assets |  |
Trading securities | 40 | 43
Other investments | 33 | 31
Other accrued liabilities |  |
Liabilities |  |
Derivative instruments (foreign exchange contracts) | 24 | 12
Other long-term liabilities |  |
Liabilities |  |
Deferred compensation liability | 40 | 43
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Assets |  |
Total assets measured at fair value | 872 | 843
Liabilities |  |
Total liabilities measured at fair value | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Current Assets |  |
Assets |  |
Cash equivalents (money market funds) | 832 | 800
Derivative instruments (foreign exchange contracts) | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other assets |  |
Assets |  |
Trading securities | 40 | 43
Other investments | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other accrued liabilities |  |
Liabilities |  |
Derivative instruments (foreign exchange contracts) | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other long-term liabilities |  |
Liabilities |  |
Deferred compensation liability | 0 | 0
Significant Other Observable Inputs (Level 2) |  |
Assets |  |
Total assets measured at fair value | 51 | 45
Liabilities |  |
Total liabilities measured at fair value | 64 | 55
Significant Other Observable Inputs (Level 2) | Other Current Assets |  |
Assets |  |
Cash equivalents (money market funds) | 0 | 0
Derivative instruments (foreign exchange contracts) | 18 | 14
Significant Other Observable Inputs (Level 2) | Other assets |  |
Assets |  |
Trading securities | 0 | 0
Other investments | 33 | 31
Significant Other Observable Inputs (Level 2) | Other accrued liabilities |  |
Liabilities |  |
Derivative instruments (foreign exchange contracts) | 24 | 12
Significant Other Observable Inputs (Level 2) | Other long-term liabilities |  |
Liabilities |  |
Deferred compensation liability | 40 | 43
Significant Unobservable Inputs (Level 3) |  |
Assets |  |
Total assets measured at fair value | 0 | 0
Liabilities |  |
Total liabilities measured at fair value | 0 | 0
Significant Unobservable Inputs (Level 3) | Other Current Assets |  |
Assets |  |
Cash equivalents (money market funds) | 0 | 0
Derivative instruments (foreign exchange contracts) | 0 | 0
Significant Unobservable Inputs (Level 3) | Other assets |  |
Assets |  |
Trading securities | 0 | 0
Other investments | 0 | 0
Significant Unobservable Inputs (Level 3) | Other accrued liabilities |  |
Liabilities |  |
Derivative instruments (foreign exchange contracts) | 0 | 0
Significant Unobservable Inputs (Level 3) | Other long-term liabilities |  |
Liabilities |  |
Deferred compensation liability | $ 0 | $ 0

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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