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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

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