RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Details) (Textual) - Pension Plan - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
United States
Defined Benefit Plan Disclosure
Employer Contributions	$ 0	$ 0	$ 0	$ 0
Expected future employer contributions	0		0
Foreign Plan
Defined Benefit Plan Disclosure
Employer Contributions	14	$ 5	19	$ 11
Expected future employer contributions	$ 16		$ 16

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Name:	us-gaap_DefinedBenefitPlanContributionsByEmployer
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration