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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