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RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Details) (Textual) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2019	Apr. 30, 2018	Apr. 30, 2019	Apr. 30, 2018
US | Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	$ 0	$ 0	$ 0	$ 0
Estimated future employer contributions in remainder of current fiscal year	0		0
US | Post-retirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	0	0	0	0
Non-US | Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	7	$ 7	15	$ 16
Estimated future employer contributions in remainder of current fiscal year	$ 15		$ 15

X

- Definition

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

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