XML 86 R75.htm IDEA: XBRL DOCUMENT v3.20.2
RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Contributions) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jul. 31, 2020
Jul. 31, 2019
Jul. 31, 2020
Jul. 31, 2019
United States | Defined benefit plan        
Defined Benefit Plan Disclosure        
Contributions by employer $ 0 $ 0 $ 0 $ 0
United States | Post-retirement Benefits Plan        
Defined Benefit Plan Disclosure        
Contributions by employer 0 0 0 0
Non-US | Defined benefit plan        
Defined Benefit Plan Disclosure        
Contributions by employer 2 $ 6 6 $ 21
Estimated future employer contributions in remainder of current fiscal year $ 2   $ 2