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RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS- Components of net periodic costs (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jul. 31, 2025
Jul. 31, 2024
Jul. 31, 2025
Jul. 31, 2024
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 6 15 16
Expected return (loss) on plan assets (6) (5) (18) (15)
Amortization of net actuarial gain (loss) 0 0 0 (1)
Amortization of Prior Service Benefit 0 0 0 0
Total net periodic benefit cost (income) (1) 1 (3) 2
Pension Plan | Foreign Plan        
Defined Benefit Plan, Net Periodic Benefit Cost (Income)        
Service cost - benefits earned during the period 6 5 13 13
Interest cost on benefit obligation 6 7 17 20
Expected return (loss) on plan assets (12) (9) (33) (28)
Amortization of net actuarial gain (loss) 7 4 19 12
Amortization of Prior Service Benefit 0 0 0 0
Total net periodic benefit cost (income) (7) (1) (22) (7)
Curtailments and Settlements        
Settlement (gain) loss     14  
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 3 3
Expected return (loss) on plan assets (1) (1) (4) (3)
Amortization of net actuarial gain (loss) 0 0 1 1
Amortization of Prior Service Benefit (1) 0 (1) 0
Total net periodic benefit cost (income) $ (1) $ 0 $ (3) $ (1)