INCOME TAXES Operating loss carryforwards (Details) $ in Millions	12 Months Ended
	Oct. 31, 2019 USD ($)
Operating Loss Carryforwards [Line Items]
Portion Of Deferred Tax Assets Operating Loss Carryforwards Foreign With Expiration Dates	$ 116
Portion Of Deferred Tax Assets Operating Loss Carryforwards Foreign With No Expiration Dates	189
US
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 8
Operating Loss Carryforwards Expiration Duration	2026 through 2029
State
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 68
Operating Loss Carryforwards Expiration Duration	2025
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 305