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RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Contributions) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Apr. 30, 2025
Apr. 30, 2024
Apr. 30, 2025
Apr. 30, 2024
United States | Defined benefit plan        
Defined Benefit Plan Disclosure        
Contributions by employer $ 0 $ 0 $ 0 $ 0
Estimated future employer contributions in remainder of current fiscal year 0   0  
United States | Post-retirement Benefits Plan        
Defined Benefit Plan Disclosure        
Contributions by employer 0 0 0 0
Estimated future employer contributions in remainder of current fiscal year 0   0  
Foreign Plan | Defined benefit plan        
Defined Benefit Plan Disclosure        
Contributions by employer 2 $ 2 5 $ 5
Estimated future employer contributions in remainder of current fiscal year $ 6   $ 6