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FAIR VALUE MEASUREMENTS, Fair value of assets and liabilities measured on a recurring basis (Details) - USD ($) $ in Millions | Oct. 31, 2021 | Apr. 15, 2021 | Oct. 31, 2020
--- | --- | --- | ---
Assets, Short-term [Abstract] |  |  |
Short-term Investments | $ 91 |  | $ 0
Assets, Long-term [Abstract] |  |  |
Trading securities | 34 |  | 30
Fair value of assets, nonrecurring | 0 |  | 0
Liabilities, Long-term [Abstract] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value | 89 |  | 0
Fair Value, Recurring |  |  |
Assets, Long-term [Abstract] |  |  |
Fair value of assets, nonrecurring | 1,084 |  | 797
Liabilities, Long-term [Abstract] |  |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 128 |  | 47
Fair Value, Recurring | Other Current Liabilities |  |  |
Liabilities, Short-term [Abstract] |  |  |
Derivative instruments (foreign exchange contracts) | 5 |  | 17
Liabilities, Long-term [Abstract] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value | 62 |  | 0
Fair Value, Recurring | Other Noncurrent Liabilities |  |  |
Liabilities, Long-term [Abstract] |  |  |
Deferred compensation liability | 34 |  | 30
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value | 27 |  | 0
Fair Value, Recurring | Other Current Assets [Member] |  |  |
Assets, Short-term [Abstract] |  |  |
Cash equivalents (money market funds) | 919 |  | 740
Foreign Currency Contract, Asset, Fair Value Disclosure | 9 |  | 2
Short-term Investments | 91 |  | 0
Fair Value, Recurring | Other Noncurrent Assets [Member] |  |  |
Assets, Long-term [Abstract] |  |  |
Trading securities | 34 |  | 30
Other investments | 31 |  | 25
Fair Value, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |
Assets, Long-term [Abstract] |  |  |
Fair value of assets, nonrecurring | 1,036 |  | 770
Liabilities, Long-term [Abstract] |  |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 0 |  | 0
Fair Value, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Current Liabilities |  |  |
Liabilities, Short-term [Abstract] |  |  |
Derivative instruments (foreign exchange contracts) | 0 |  | 0
Liabilities, Long-term [Abstract] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value | 0 |  | 0
Fair Value, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Noncurrent Liabilities |  |  |
Liabilities, Long-term [Abstract] |  |  |
Deferred compensation liability | 0 |  | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value | 0 |  | 0
Fair Value, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Current Assets [Member] |  |  |
Assets, Short-term [Abstract] |  |  |
Cash equivalents (money market funds) | 919 |  | 740
Foreign Currency Contract, Asset, Fair Value Disclosure | 0 |  | 0
Short-term Investments | 83 |  | 0
Fair Value, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Noncurrent Assets [Member] |  |  |
Assets, Long-term [Abstract] |  |  |
Trading securities | 34 |  | 30
Other investments | 0 |  | 0
Fair Value, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Assets, Long-term [Abstract] |  |  |
Fair value of assets, nonrecurring | 48 |  | 27
Liabilities, Long-term [Abstract] |  |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 39 |  | 47
Fair Value, Recurring | Significant Other Observable Inputs (Level 2) | Other Current Liabilities |  |  |
Liabilities, Short-term [Abstract] |  |  |
Derivative instruments (foreign exchange contracts) | 5 |  | 17
Liabilities, Long-term [Abstract] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value | 0 |  | 0
Fair Value, Recurring | Significant Other Observable Inputs (Level 2) | Other Noncurrent Liabilities |  |  |
Liabilities, Long-term [Abstract] |  |  |
Deferred compensation liability | 34 |  | 30
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value | 0 |  | 0
Fair Value, Recurring | Significant Other Observable Inputs (Level 2) | Other Current Assets [Member] |  |  |
Assets, Short-term [Abstract] |  |  |
Cash equivalents (money market funds) | 0 |  | 0
Foreign Currency Contract, Asset, Fair Value Disclosure | 9 |  | 2
Short-term Investments | 8 |  | 0
Fair Value, Recurring | Significant Other Observable Inputs (Level 2) | Other Noncurrent Assets [Member] |  |  |
Assets, Long-term [Abstract] |  |  |
Trading securities | 0 |  | 0
Other investments | 31 |  | 25
Fair Value, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Assets, Long-term [Abstract] |  |  |
Fair value of assets, nonrecurring | 0 |  | 0
Liabilities, Long-term [Abstract] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value | 89 | $ 110 |
Financial and Nonfinancial Liabilities, Fair Value Disclosure |  |  | 0
Fair Value, Recurring | Significant Unobservable Inputs (Level 3) | Other Current Liabilities |  |  |
Liabilities, Short-term [Abstract] |  |  |
Derivative instruments (foreign exchange contracts) | 0 |  | 0
Liabilities, Long-term [Abstract] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value | 62 |  | 0
Fair Value, Recurring | Significant Unobservable Inputs (Level 3) | Other Noncurrent Liabilities |  |  |
Liabilities, Long-term [Abstract] |  |  |
Deferred compensation liability | 0 |  | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value | 27 |  | 0
Fair Value, Recurring | Significant Unobservable Inputs (Level 3) | Other Current Assets [Member] |  |  |
Assets, Short-term [Abstract] |  |  |
Cash equivalents (money market funds) | 0 |  | 0
Foreign Currency Contract, Asset, Fair Value Disclosure | 0 |  | 0
Short-term Investments | 0 |  | 0
Fair Value, Recurring | Significant Unobservable Inputs (Level 3) | Other Noncurrent Assets [Member] |  |  |
Assets, Long-term [Abstract] |  |  |
Trading securities | 0 |  | 0
Other investments | $ 0 |  | $ 0

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- Definition Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=SL6742756-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 35 -Paragraph 54B -URI http://asc.fasb.org/extlink&oid=122636397&loc=SL7495116-110257 + Details
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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 No definition available. + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 + Details
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