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Benefit Plans
 6 Months Ended
Mar. 31, 2023
Retirement Benefits [Abstract]  
Benefit Plans Benefit Plans
The Company has defined benefit pension plans covering certain employees in the United States and certain international locations. The measurement date used for these plans is September 30.
Net pension cost included the following components for the three and six-month periods:
 Three Months Ended
March 31,		Six Months Ended
March 31,
(Millions of dollars)2023202220232022
Service cost$22 $34 $46 $69 
Interest cost32 19 67 38 
Expected return on plan assets(35)(46)(73)(94)
Amortization of prior service credit(2)(4)(3)(8)
Amortization of loss15 15 32 31 
Settlements1 1 1 6 
Net pension cost$34 $18 $70 $42 
The amounts provided above for amortization of prior service credit and amortization of loss represent the reclassifications of prior service credits and net actuarial losses that were recognized in Accumulated other comprehensive income (loss) in prior periods. All components of the Company’s net periodic pension and postretirement benefit costs, aside from service cost, are recorded to Other income (expense), net on its condensed consolidated statements of income.