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WARRANTIES AND CONTINGENCIES (Details) - USD ($)
$ in Millions
6 Months Ended
Apr. 30, 2018
Apr. 30, 2017
Movement in Standard Product Warranty Accrual    
Beginning balance at beginning of period $ 34 $ 35
Accruals for warranties including change in estimate 25 24
Settlements made during the period (26) (25)
Ending balance at end of period 33 34
Standard Product Warranty Disclosure    
Accruals for warranties due within one year 33 33
Accruals for warranties due after one year 0 1
Ending balance at end of period $ 33 $ 34