v3.25.1
Defined Benefit Pension and Other Postretirement Plans (Tables)
6 Months Ended
Mar. 31, 2025
Retirement Benefits [Abstract]  
Schedule of Components of Net Periodic Pension Benefit Cost (Income)
Net periodic pension benefit cost (income) includes the following components:
 Pension Benefits
Three Months Ended March 31,20252024
Service cost$$
Interest cost
Expected return on plan assets(12)(11)
Amortization of:
Actuarial loss (gain)
Net benefit cost (income)$— $
   
Six Months Ended March 31,20252024
Service cost$$
Interest cost17 18 
Expected return on plan assets(24)(22)
Amortization of:
Actuarial loss (gain)
Net benefit cost (income)$— $