WARRANTIES AND CONTINGENCIES (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Oct. 31, 2019
Movement in Standard Product Warranty Accrual
Beginning balance as of	$ 32	$ 35
Accruals for warranties including change in estimate	12	13
Settlements made during the period	(14)	(16)
Ending balance at end of period	30	32
Standard Product Warranty Disclosure
Accruals for warranties due within one year	30	$ 32
Guarantees
Guarantees	$ 40		$ 40