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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, 2022
Apr. 30, 2021
Apr. 30, 2022
Apr. 30, 2021
Pension Plan | United States        
Defined Benefit Plan, Net Periodic Benefit Cost        
Service cost - benefits earned during the period $ 0 $ 0 $ 0 $ 0
Interest cost on benefit obligation 4 4 7 7
Expected return on plan assets (8) (8) (14) (15)
Amortization:        
Actuarial losses 0 1 0 2
Prior service credits 0 0 0 0
Total net plan costs (benefits) (4) (3) (7) (6)
Pension Plan | Foreign Plan        
Defined Benefit Plan, Net Periodic Benefit Cost        
Service cost - benefits earned during the period 4 4 12 11
Interest cost on benefit obligation 3 2 5 4
Expected return on plan assets (12) (13) (23) (25)
Amortization:        
Actuarial losses 7 14 13 27
Prior service credits 0 0 0 0
Total net plan costs (benefits) 2 7 7 17
Other Postretirement Benefits Plan | United States        
Defined Benefit Plan, Net Periodic Benefit Cost        
Service cost - benefits earned during the period 0 0 0 0
Interest cost on benefit obligation 0 1 1 2
Expected return on plan assets (2) (1) (3) (3)
Amortization:        
Actuarial losses 0 1 (1) 2
Prior service credits 0 (1) 0 (1)
Total net plan costs (benefits) $ (2) $ 0 $ (3) $ 0