v3.26.1
RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS- Components of net periodic costs (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Jul. 31, 2026
Jul. 31, 2025
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 14 15
Expected return on plan assets (7) (6) (19) (18)
Amortization of net actuarial gain (loss) 0 0 0 0
Amortization of Prior Service Benefit 0 0 0 0
Total net periodic benefit cost (income) (2) (1) (5) (3)
Pension Plan | Foreign Plan        
Defined Benefit Plan, Net Periodic Benefit Cost (Income)        
Service cost - benefits earned during the period 6 6 14 13
Interest cost on benefit obligation 5 6 17 17
Expected return on plan assets (12) (12) (37) (33)
Amortization of net actuarial gain (loss) 5 7 19 19
Amortization of Prior Service Benefit 0 0 0 0
Total net periodic benefit cost (income) (6) (7) (25) (22)
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 on plan assets (1) (1) (4) (4)
Amortization of net actuarial gain (loss) 0 0 1 1
Amortization of Prior Service Benefit 0 (1) 0 (1)
Total net periodic benefit cost (income) $ 0 $ (1) $ (2) $ (3)