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RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS
 6 Months Ended
Apr. 30, 2026
Retirement Benefits [Abstract]  
RETIREMENT PLANS AND POST RETIREMENT PENSION PLANS
11.    RETIREMENT PLANS AND POST-RETIREMENT BENEFIT PLANS
For the three and six months ended April 30, 2026 and 2025, our net pension and post-retirement benefit cost (benefit) consisted of the following:
 Pensions 
 U.S. Defined Benefit PlansNon-U.S. Defined Benefit
Plans		U.S. Post-Retirement
Benefit Plan
 Three Months Ended
April 30,
 202620252026202520262025
(in millions)
Service cost—benefits earned during the period$3 $5 $3 $2 $— $— 
Interest cost on benefit obligation10 9 8 8 2 2 
Expected return on plan assets(14)(13)(15)(14)(4)(3)
Amortization of net actuarial loss (gain)1 2 (1)(1)— (1)
Net periodic benefit cost (benefit)$— $3 $(5)$(5)$(2)$(2)
Pensions
U.S. Defined Benefit PlansNon-U.S. Defined Benefit
Plans		U.S. Post-Retirement
Benefit Plan
Six months ended
April 30,
202620252026202520262025
(in millions)
Service cost—benefits earned during the period$7 $9 $5 $4 $— $— 
Interest cost on benefit obligation19 19 17 17 4 4 
Expected return on plan assets(27)(26)(31)(29)(7)(6)
Amortization of net actuarial loss (gain)2 3 (2)(2)(1)(1)
Net periodic benefit cost (benefit)$1 $5 $(11)$(10)$(4)$(3)
We record the service cost component of net periodic benefit cost (benefit) in the same line item as other employee compensation costs. The non-service components of net periodic benefit cost (benefit), such as interest cost, expected return on assets, amortization of prior service cost, and actuarial gains or losses, are recorded within “other income (expense), net” in the condensed consolidated statement of operations.
We did not contribute to our U.S. defined benefit plans or U.S. post-retirement benefit plan during the three and six months ended April 30, 2026 and 2025. We contributed $3 million and $2 million to our non-U.S. defined benefit plans during the three months ended April 30, 2026 and 2025, respectively and $5 million in each of the six months ended April 30, 2026 and 2025.
For the remainder of 2026, we do not expect to contribute to our U.S. defined benefit plans and U.S. post-retirement benefit plan, and we expect to contribute $5 million to our non-U.S. defined benefit plans. The amounts we contribute depend on, among other factors, legal requirements, underlying asset returns, the plan’s funded status, the anticipated tax deductibility of the contributions, local practices, employee retirements, market conditions, interest rates, and other factors.