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RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS- Components of net periodic costs (Details) - USD ($)
$ in Millions
 3 Months Ended
Jan. 31, 2019
Jan. 31, 2018
Jan. 31, 2017
Pension Plan [Member] | Domestic Plan [Member]      
Defined Benefit Plan, Net Periodic Benefit Cost      
Service cost - benefits earned during the period $ 0 $ 0  
Interest cost on benefit obligation 5 4  
Expected return on plan assets (7) (7)  
Amortization:      
Actuarial losses 0 0  
Prior service credits 0 0  
Total net plan costs (2) (3)  
Pension Plan [Member] | Foreign Plan [Member]      
Defined Benefit Plan, Net Periodic Benefit Cost      
Service cost - benefits earned during the period 6 6  
Interest cost on benefit obligation 3 3  
Expected return on plan assets (11) (11)  
Amortization:      
Actuarial losses 9 7  
Prior service credits 0 0  
Total net plan costs 7 5  
Curtailments and Settlements      
Settlement gain 0 5 $ 32
Other Postretirement Benefits Plan [Member] | Domestic Plan [Member]      
Defined Benefit Plan, Net Periodic Benefit Cost      
Service cost - benefits earned during the period 0 0  
Interest cost on benefit obligation 0 1  
Expected return on plan assets (1) (2)  
Amortization:      
Actuarial losses 1 2  
Prior service credits (2) (2)  
Total net plan costs $ (2) $ (1)