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
Apr. 30, 2026
Oct. 31, 2025
Assets    
Total assets measured at fair value $ 1,289 $ 1,706
Liabilities    
Total liabilities measured at fair value 52 51
Other Current Assets    
Assets    
Cash equivalents (money market funds) 1,196 1,614
Derivative instruments (foreign exchange contracts) 11 14
Other assets    
Assets    
Trading securities 43 41
Other investments 39 37
Other accrued liabilities    
Liabilities    
Derivative instruments (foreign exchange contracts) 9 10
Other long-term liabilities    
Liabilities    
Deferred compensation liability 43 41
Quoted Prices in Active Markets for Identical Assets (Level 1)    
Assets    
Total assets measured at fair value 1,239 1,655
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) 1,196 1,614
Derivative instruments (foreign exchange contracts) 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other assets    
Assets    
Trading securities 43 41
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 50 51
Liabilities    
Total liabilities measured at fair value 52 51
Significant Other Observable Inputs (Level 2) | Other Current Assets    
Assets    
Cash equivalents (money market funds) 0 0
Derivative instruments (foreign exchange contracts) 11 14
Significant Other Observable Inputs (Level 2) | Other assets    
Assets    
Trading securities 0 0
Other investments 39 37
Significant Other Observable Inputs (Level 2) | Other accrued liabilities    
Liabilities    
Derivative instruments (foreign exchange contracts) 9 10
Significant Other Observable Inputs (Level 2) | Other long-term liabilities    
Liabilities    
Deferred compensation liability 43 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) | 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