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RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Narrative) (Details) - USD ($)
$ in Millions
 12 Months Ended
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 $ (532) $ (426)  
Cost recognized 25 23 $ 16
Other Pension, Postretirement and Supplemental Plans [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Deferred Compensation Plan Assets 266    
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 176 172 182
Benefit obligation 202 190 207
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 20 24 22
Fair value of plan assets 615 575 515
Benefit obligation 774 650 675
Employer contributions 0 85  
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 14 14 18
Fair value of plan assets 1,538 1,392 1,440
Benefit obligation 1,393 1,249 $ 1,338
Employer contributions 26 $ 33  
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year $ 11