v3.26.1
RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Net Pension and post-retirement benefit cost(benefit) components) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Jul. 31, 2026
Jul. 31, 2025
Defined benefit plan | United States        
Defined Benefit Plan Disclosure        
Service cost—benefits earned during the period $ 4 $ 4 $ 11 $ 13
Interest cost on benefit obligation 10 10 29 29
Expected return on plan assets (13) (13) (40) (39)
Amortization of net actuarial loss (gain) 0 1 2 4
Net periodic benefit cost (benefit) 1 2 2 7
Defined benefit plan | Foreign Plan        
Defined Benefit Plan Disclosure        
Service cost—benefits earned during the period 2 2 7 6
Interest cost on benefit obligation 9 9 26 26
Expected return on plan assets (16) (16) (47) (45)
Amortization of net actuarial loss (gain) (1) (1) (3) (3)
Net periodic benefit cost (benefit) (6) (6) (17) (16)
Post-retirement Benefits Plan | United States        
Defined Benefit Plan Disclosure        
Service cost—benefits earned during the period 0 0 0 0
Interest cost on benefit obligation 1 2 5 6
Expected return on plan assets (3) (3) (10) (9)
Amortization of net actuarial loss (gain) 0 0 (1) (1)
Net periodic benefit cost (benefit) $ (2) $ (1) $ (6) $ (4)