XML 87 R76.htm IDEA: XBRL DOCUMENT v3.19.1
RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS RETIREMENT AND POST RETIREMENT PENSION PLANS (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Apr. 30, 2019
Apr. 30, 2018
Apr. 30, 2019
Apr. 30, 2018
Defined benefit plan | US        
Defined Benefit Plan Disclosure [Line Items]        
Service cost—benefits earned during the period $ 5 $ 6 $ 10 $ 12
Interest cost on benefit obligation 7 6 14 12
Expected return on plan assets (10) (9) (21) (18)
Net actuarial loss 2 3 5 6
Prior service credit (1) (2) (2) (4)
Settlement loss 0 0 0 0
Net periodic benefit cost (benefit) 3 4 6 8
Defined benefit plan | Non-US        
Defined Benefit Plan Disclosure [Line Items]        
Service cost—benefits earned during the period 4 4 7 7
Interest cost on benefit obligation 5 6 11 12
Expected return on plan assets (20) (23) (39) (44)
Net actuarial loss 7 7 14 13
Prior service credit 0 0 0 0
Settlement loss 0 0 2 0
Net periodic benefit cost (benefit) (4) (6) (5) (12)
Post-retirement Benefits Plan | US        
Defined Benefit Plan Disclosure [Line Items]        
Service cost—benefits earned during the period 0 1 0 1
Interest cost on benefit obligation 2 1 4 3
Expected return on plan assets (3) (3) (6) (7)
Net actuarial loss 2 4 4 8
Prior service credit (4) (4) (7) (7)
Settlement loss 0 0 0 0
Net periodic benefit cost (benefit) $ (3) $ (1) $ (5) $ (2)