DERIVATIVES (Details)
$ in Millions
 3 Months Ended 6 Months Ended
Oct. 20, 2014
USD ($)
Apr. 30, 2016
USD ($)
contracts
Apr. 30, 2015
USD ($)
Apr. 30, 2016
USD ($)
contracts
Apr. 30, 2015
USD ($)
Feb. 01, 2016
USD ($)
Jul. 01, 2012
USD ($)
Aug. 09, 2011
USD ($)
contracts
Nov. 25, 2008
USD ($)
contracts
Derivative Instruments and Hedging Activities Disclosure                  
Gain (loss) recognized in accumulated other comprehensive income (loss)   $ (13)   $ (9)          
Aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a net liability position   $ 10   $ 10          
Derivative Contracts                  
Foreign exchange forward contracts designated as cash flow hedge (in units) | contracts   62   62          
Foreign exchange forward contracts not designated as hedges (in units) | contracts   158   158          
Senior Notes 2020                  
Terminated Interest Rate Swaps                  
Number of Interest Rate Swap Contracts Designated as Fair Value Hedges Terminated (in units) | contracts               5  
Notional Amount of Terminated Interest Rate Swaps               $ 500  
Amount to be amortized on terminated interest rates swaps   $ 17   $ 17          
Senior Notes 2017                  
Terminated Interest Rate Swaps                  
Number of Interest Rate Swap Contracts Designated as Fair Value Hedges Terminated (in units) | contracts                 2
Notional Amount of Terminated Interest Rate Swaps                 $ 400
Amount to be amortized on terminated interest rates swaps   1   1          
Derivative Instruments and Hedging Activities Disclosure                  
Debt instrument face amount $ 600 100   100          
Amount of extinguishment of debt $ 500                
Treasury Lock | Senior Notes 2022 | Cash Flow Hedging                  
Derivative Instruments and Hedging Activities Disclosure                  
Notional amount of interest rate swap contract             $ 400    
Remaining gain to be amortized on derivative   2   2          
Interest Rate Swap [Member] | Cash Flow Hedging                  
Derivative Instruments and Hedging Activities Disclosure                  
Notional amount of interest rate swap contract           $ 300      
Designated as Hedging Instrument | Accumulated Other Comprehensive Income (Loss) | Interest Rate Swap [Member] | Cash Flow Hedging                  
Derivative Instruments and Hedging Activities Disclosure                  
Gain (loss) recognized in accumulated other comprehensive income (loss)   $ (3) $ 0 $ (3) $ 0