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RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Oct. 31, 2020 | Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Accumulated other comprehensive loss, net of tax | $ (605) | $ (532) |  |
Cost recognized | 27 | 25 | $ 23 |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement | 5 | 2 |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment | 1 |  |  |
Other Pension, Postretirement and Supplemental Plans [Member] |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Deferred Compensation Plan Assets | 250 |  |  |
UNITED STATES | Other Postretirement Benefits Plan [Member] |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Service cost — benefits earned during the period | 1 | 1 | 1 |
Fair value of plan assets | 175 | 176 |  | $ 172
Benefit obligation | 203 | 202 |  | 190
Employer contributions | 0 | 0 |  |
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year | 0 |  |  |
UNITED STATES | Pension Plan [Member] |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Service cost — benefits earned during the period | 23 | 20 | 24 |
Fair value of plan assets | 722 | 615 |  | 575
Benefit obligation | 848 | 774 |  | 650
Employer contributions | 100 | 0 |  |
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year | 0 |  |  |
Foreign Plan [Member] | Pension Plan [Member] |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Service cost — benefits earned during the period | 15 | 14 | $ 14 |
Fair value of plan assets | 1,545 | 1,538 |  | 1,392
Benefit obligation | 1,421 | 1,393 |  | $ 1,249
Employer contributions | 10 | $ 26 |  |
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year | $ 12 |  |  |

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