v3.26.1
FAIR VALUE MEASUREMENTS, Fair value of assets and liabilities measured on a recurring basis (Details) - Fair Value, Measurements, Recurring - USD ($)
$ in Millions
Jul. 31, 2026
Oct. 31, 2025
Assets    
Total assets measured at fair value $ 1,179 $ 1,706
Liabilities    
Total liabilities measured at fair value 50 51
Balance Sheet Location [Axis]: us-gaap:CashAndCashEquivalentsAtCarryingValue    
Assets    
Cash equivalents (money market funds) 1,089 1,614
Balance Sheet Location [Axis]: us-gaap:OtherAccruedLiabilitiesCurrent    
Liabilities    
Derivative instruments (foreign exchange contracts) 9 10
Balance Sheet Location [Axis]: us-gaap:OtherAssetsCurrent    
Assets    
Derivative instruments (foreign exchange contracts) 9 14
Balance Sheet Location [Axis]: us-gaap:OtherAssetsNoncurrent    
Assets    
Trading securities 41 41
Other investments 40 37
Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesNoncurrent    
Liabilities    
Deferred compensation liability 41 41
Quoted Prices in Active Markets for Identical Assets (Level 1)    
Assets    
Total assets measured at fair value 1,130 1,655
Liabilities    
Total liabilities measured at fair value 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Balance Sheet Location [Axis]: us-gaap:CashAndCashEquivalentsAtCarryingValue    
Assets    
Cash equivalents (money market funds) 1,089 1,614
Quoted Prices in Active Markets for Identical Assets (Level 1) | Balance Sheet Location [Axis]: us-gaap:OtherAccruedLiabilitiesCurrent    
Liabilities    
Derivative instruments (foreign exchange contracts) 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Balance Sheet Location [Axis]: us-gaap:OtherAssetsCurrent    
Assets    
Derivative instruments (foreign exchange contracts) 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Balance Sheet Location [Axis]: us-gaap:OtherAssetsNoncurrent    
Assets    
Trading securities 41 41
Other investments 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesNoncurrent    
Liabilities    
Deferred compensation liability 0 0
Significant Other Observable Inputs (Level 2)    
Assets    
Total assets measured at fair value 49 51
Liabilities    
Total liabilities measured at fair value 50 51
Significant Other Observable Inputs (Level 2) | Balance Sheet Location [Axis]: us-gaap:CashAndCashEquivalentsAtCarryingValue    
Assets    
Cash equivalents (money market funds) 0 0
Significant Other Observable Inputs (Level 2) | Balance Sheet Location [Axis]: us-gaap:OtherAccruedLiabilitiesCurrent    
Liabilities    
Derivative instruments (foreign exchange contracts) 9 10
Significant Other Observable Inputs (Level 2) | Balance Sheet Location [Axis]: us-gaap:OtherAssetsCurrent    
Assets    
Derivative instruments (foreign exchange contracts) 9 14
Significant Other Observable Inputs (Level 2) | Balance Sheet Location [Axis]: us-gaap:OtherAssetsNoncurrent    
Assets    
Trading securities 0 0
Other investments 40 37
Significant Other Observable Inputs (Level 2) | Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesNoncurrent    
Liabilities    
Deferred compensation liability 41 41
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) | Balance Sheet Location [Axis]: us-gaap:CashAndCashEquivalentsAtCarryingValue    
Assets    
Cash equivalents (money market funds) 0 0
Significant Unobservable Inputs (Level 3) | Balance Sheet Location [Axis]: us-gaap:OtherAccruedLiabilitiesCurrent    
Liabilities    
Derivative instruments (foreign exchange contracts) 0 0
Significant Unobservable Inputs (Level 3) | Balance Sheet Location [Axis]: us-gaap:OtherAssetsCurrent    
Assets    
Derivative instruments (foreign exchange contracts) 0 0
Significant Unobservable Inputs (Level 3) | Balance Sheet Location [Axis]: us-gaap:OtherAssetsNoncurrent    
Assets    
Trading securities 0 0
Other investments 0 0
Significant Unobservable Inputs (Level 3) | Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesNoncurrent    
Liabilities    
Deferred compensation liability $ 0 $ 0