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RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS (Notes)
 6 Months Ended
Apr. 30, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS
Components of net periodic costs (benefits). For the three and six months ended April 30, 2023 and 2022, our net pension and post retirement benefit costs (benefits) were comprised of the following:
 
Three Months Ended April 30,
 U.S.
Pension Plans		Non-U.S.
Pension Plans		U.S. Post Retirement
Benefit Plans
 202320222023202220232022
 (in millions)
Service cost—benefits earned during the period$— $— $2 $4 $— $— 
Interest cost on benefit obligation5 4 6 3 1 — 
Expected return on plan assets(4)(8)(9)(12)(1)(2)
Amortization:
Actuarial losses— — — 7 — — 
Prior service credits— — — — (1)— 
Total net plan costs (benefits)$1 $(4)$(1)$2 $(1)$(2)
Six Months Ended April 30,
 U.S.
Pension Plans		Non-U.S.
Pension Plans		U.S. Post Retirement
Benefit Plans
 202320222023202220232022
 (in millions)
Service cost—benefits earned during the period$— $— $8 $12 $— $— 
Interest cost on benefit obligation10 7 12 5 2 1 
Expected return on plan assets(9)(14)(18)(23)(2)(3)
Amortization:
Actuarial losses (gains)— — (1)13 — (1)
Prior service credits— — — — (1)— 
Total net plan costs (benefits)$1 $(7)$1 $7 $(1)$(3)

The service cost component is recorded in cost of sales and operating expenses in the condensed consolidated statement of operations. All other cost components are recorded in other income (expense), net in the condensed consolidated statement of operations.

Employer contributions and expected future employer contributions for the remainder of the year were as follows:
Three Months EndedSix Months Ended Employer Contributions
April 30,April 30,For Remainder of Year
20232022202320222023
(in millions)
U.S. defined benefit plans$— $— $— $— $— 
Non-U.S. defined benefit plans$4 $3 $9 $8 $9