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FAIR VALUE MEASUREMENTS (Fair Value of Assets and Liabilities Measured on a Recurring Basis) (Details) - Fair Value, Measurements, Recurring [Member] - USD ($)
$ in Millions
Oct. 31, 2015
Oct. 31, 2014
Assets, Short-term [Abstract]    
Cash equivalents (money market funds) $ 295 $ 634
Derivative instruments asset (foreign exchange contracts) 1 9
Assets, Long-term [Abstract]    
Trading securities 12 13
Available-for-sale investments 41 35
Total assets measured at fair value 349 691
Liabilities, Short-term [Abstract]    
Derivative instruments liabilities (foreign exchange contracts) 10 3
Liabilities, Long-term [Abstract]    
Deferred compensation liability 12 13
Total liabilities measured at fair value 22 16
Quoted Prices in Active Markets for Identical Assets (Level 1)    
Assets, Short-term [Abstract]    
Cash equivalents (money market funds) 295 634
Derivative instruments asset (foreign exchange contracts) 0 0
Assets, Long-term [Abstract]    
Trading securities 12 13
Available-for-sale investments 41 35
Total assets measured at fair value 348 682
Liabilities, Short-term [Abstract]    
Derivative instruments liabilities (foreign exchange contracts) 0 0
Liabilities, Long-term [Abstract]    
Deferred compensation liability 0 0
Total liabilities measured at fair value 0 0
Significant Other Observable Inputs (Level 2)    
Assets, Short-term [Abstract]    
Cash equivalents (money market funds) 0 0
Derivative instruments asset (foreign exchange contracts) 1 9
Assets, Long-term [Abstract]    
Trading securities 0 0
Available-for-sale investments 0 0
Total assets measured at fair value 1 9
Liabilities, Short-term [Abstract]    
Derivative instruments liabilities (foreign exchange contracts) 10 3
Liabilities, Long-term [Abstract]    
Deferred compensation liability 12 13
Total liabilities measured at fair value 22 16
Significant Unobservable Inputs (Level 3)    
Assets, Short-term [Abstract]    
Cash equivalents (money market funds) 0 0
Derivative instruments asset (foreign exchange contracts) 0 0
Assets, Long-term [Abstract]    
Trading securities 0 0
Available-for-sale investments 0 0
Total assets measured at fair value 0 0
Liabilities, Short-term [Abstract]    
Derivative instruments liabilities (foreign exchange contracts) 0 0
Liabilities, Long-term [Abstract]    
Deferred compensation liability 0 0
Total liabilities measured at fair value $ 0 $ 0