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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