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WARRANTIES AND CONTINGENCIES (Details) - USD ($)
$ in Millions
3 Months Ended
Jan. 31, 2018
Jan. 31, 2017
Movement in Standard Product Warranty Accrual    
Beginning balance at beginning of period $ 34 $ 35
Accruals for warranties including change in estimate 11 13
Settlements made during the period (12) (13)
Ending balance at end of period 33 35
Standard Product Warranty Disclosure    
Accruals for warranties due within one year 33 34
Accruals for warranties due after one year 0 1
Ending balance at end of period $ 33 $ 35