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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, 2025
Jan. 31, 2024
Pension Plan | United States    
Defined Benefit Plan, Net Periodic Benefit Cost (Income)    
Service cost - benefits earned during the period $ 0 $ 0
Interest cost on benefit obligation 5 5
Expected return on plan assets (6) (5)
Amortization of net actuarial (gain) loss 0 1
Total net periodic benefit cost (income) (1) 1
Pension Plan | Foreign Plan    
Defined Benefit Plan, Net Periodic Benefit Cost (Income)    
Service cost - benefits earned during the period 5 5
Interest cost on benefit obligation 6 6
Expected return on plan assets (11) (9)
Amortization of net actuarial (gain) loss (6) (4)
Total net periodic benefit cost (income) (6) (2)
Curtailments and Settlements    
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement 14  
Other Postretirement Benefits Plan | United States    
Defined Benefit Plan, Net Periodic Benefit Cost (Income)    
Service cost - benefits earned during the period 0 0
Interest cost on benefit obligation 0 1
Expected return on plan assets (1) (1)
Amortization of net actuarial (gain) loss 0 0
Total net periodic benefit cost (income) $ (1) $ 0