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WARRANTIES AND CONTINGENCIES (Details) - USD ($)
$ in Millions
9 Months Ended
Jul. 31, 2020
Jul. 31, 2019
Oct. 31, 2019
Movement in Standard Product Warranty Accrual      
Beginning balance $ 32 $ 35  
Accruals for warranties including change in estimate 36 40  
Settlements made during the period (37) (43)  
Ending balance at end of period 31 32  
Standard Product Warranty Disclosure      
Accruals for warranties due within one year 31 $ 32  
Guarantees      
Guarantees $ 41   $ 40