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RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS, JWPIL (Details) - Pension Plan - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jan. 31, 2018	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
JAPAN
Defined Benefit Plan Disclosure [Line Items]
Settlement gain (loss)	$ 5			$ 32
Benefit Obligation				65
JAPAN | Difference Between Fair Values of the Obligation Settled and Assets Transferred [Member]
Defined Benefit Plan Disclosure [Line Items]
Settlement gain (loss)				41
JAPAN | Accumulated Other Comprehensive Income (Loss)
Defined Benefit Plan Disclosure [Line Items]
Settlement gain (loss)				(9)
Fair Value of Plan Assets				24
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Settlement gain (loss)		$ 0	$ 0	(32)
Benefit Obligation		1,067	913	935
Fair Value of Plan Assets		$ 911	$ 825	$ 855

X

- Definition

Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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