v3.26.1
FAIR VALUE MEASUREMENTS (Fair value of assets and liabilities measured on a recurring basis) (Details) - USD ($)
$ in Millions
Jul. 31, 2026
Oct. 31, 2025
Assets, Long-term [Abstract]    
Equity investments - other $ 55 $ 42
Fair Value, Measurements, Recurring    
Assets Short - term [Abstract]    
Money market funds 1,869 1,349
Derivative instruments (foreign exchange contracts) 6 14
Assets, Long-term [Abstract]    
Equity investments 132 169
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value 1 0
Total assets measured at fair value 2,008 1,532
Liabilities, Short-term [Abstract]    
Derivative instruments (foreign exchange contracts) 7 8
Liabilities Long-term [Abstract]    
Deferred compensation liability 41 40
Hedged Liability, Fair Value Hedge 20 0
Total liabilities measured at fair value 68 48
Fair Value, Measurements, Recurring | Level 1    
Assets Short - term [Abstract]    
Money market funds 1,869 1,349
Derivative instruments (foreign exchange contracts) 0 0
Assets, Long-term [Abstract]    
Equity investments 132 169
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value 0 0
Total assets measured at fair value 2,001 1,518
Liabilities, Short-term [Abstract]    
Derivative instruments (foreign exchange contracts) 0 0
Liabilities Long-term [Abstract]    
Deferred compensation liability 0 0
Hedged Liability, Fair Value Hedge 0 0
Total liabilities measured at fair value 0 0
Fair Value, Measurements, Recurring | Level 2    
Assets Short - term [Abstract]    
Money market funds 0 0
Derivative instruments (foreign exchange contracts) 6 14
Assets, Long-term [Abstract]    
Equity investments 0 0
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value 1 0
Total assets measured at fair value 7 14
Liabilities, Short-term [Abstract]    
Derivative instruments (foreign exchange contracts) 7 8
Liabilities Long-term [Abstract]    
Deferred compensation liability 41 40
Hedged Liability, Fair Value Hedge 20 0
Total liabilities measured at fair value 68 48
Fair Value, Measurements, Recurring | Level 3    
Assets Short - term [Abstract]    
Money market funds 0 0
Derivative instruments (foreign exchange contracts) 0 0
Assets, Long-term [Abstract]    
Equity investments 0 0
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value 0 0
Total assets measured at fair value 0 0
Liabilities, Short-term [Abstract]    
Derivative instruments (foreign exchange contracts) 0 0
Liabilities Long-term [Abstract]    
Deferred compensation liability 0 0
Hedged Liability, Fair Value Hedge 0 0
Total liabilities measured at fair value $ 0 $ 0