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RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS- Components of net periodic costs (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Apr. 30, 2024
Apr. 30, 2023
Apr. 30, 2024
Apr. 30, 2023
Pension Plan | United States        
Defined Benefit Plan, Net Periodic Benefit Cost (Income)        
Service cost - benefits earned during the period $ 0 $ 0 $ 0 $ 0
Interest cost on benefit obligation 5 5 10 10
Expected return on plan assets (5) (4) (10) (9)
Amortization of net actuarial (gain) loss 0 0 1 0
Amortization of Prior Service Benefit 0 0 0 0
Total net periodic benefit cost (income) 0 1 1 1
Pension Plan | Foreign Plan        
Defined Benefit Plan, Net Periodic Benefit Cost (Income)        
Service cost - benefits earned during the period 3 2 8 8
Interest cost on benefit obligation 7 6 13 12
Expected return on plan assets (10) (9) (19) (18)
Amortization of net actuarial (gain) loss (4) 0 (8) (1)
Amortization of Prior Service Benefit 0 0 0 0
Total net periodic benefit cost (income) (4) (1) (6) 1
Other Postretirement Benefits Plan | United States        
Defined Benefit Plan, Net Periodic Benefit Cost (Income)        
Service cost - benefits earned during the period 0 0 0 0
Interest cost on benefit obligation 1 1 2 2
Expected return on plan assets (1) (1) (2) (2)
Amortization of net actuarial (gain) loss (1) 0 (1) 0
Amortization of Prior Service Benefit 0 (1) 0 (1)
Total net periodic benefit cost (income) $ (1) $ (1) $ (1) $ (1)