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RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Tables)
3 Months Ended
Jan. 31, 2023
Retirement Benefits [Abstract]  
Schedule of net pension and post-retirement benefit costs
For the three months ended January 31, 2023 and 2022, our net pension and post-retirement benefit cost (benefit) was comprised of the following:
 Pensions 
 U.S. Defined Benefit PlansNon-U.S. Defined Benefit
Plans
U.S. Post-Retirement
Benefit Plan
 Three Months Ended
January 31,
 202320222023202220232022
(in millions)
Service cost—benefits earned during the period$$$$$— $— 
Interest cost on benefit obligation
Expected return on plan assets(12)(15)(12)(15)(3)(4)
Amortization of net actuarial loss— — 
Net periodic benefit cost (benefit)$$— $(1)$(2)$(1)$(3)