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Other Income/(Expense), Net
 9 Months Ended
Sep. 30, 2023
Other Net [Abstract]  
Other, Net Other Income/(Expense), Net
The components of Other income/(expense), net for the three and nine months ended September 30 were as follows:
Three months endedNine months ended
In millions2023202220232022
Interest income$3.6 $2.4 $11.1 $5.2 
Foreign currency exchange loss(5.8)(5.5)(12.4)(13.1)
Other components of net periodic benefit credit/(cost)(4.7)(13.9)(15.0)(11.6)
Other activity, net
(3.1)(1.7)(60.5)(1.5)
Other income/(expense), net$(10.0)$(18.7)$(76.8)$(21.0)
Other income/(expense), net includes the results from activities other than core business operations such as interest income and foreign currency gains and losses on transactions that are denominated in a currency other than an entity’s functional currency. In addition, the Company includes the components of net periodic benefit credit/(cost) for pension and postretirement obligations other than the service cost component. During the three and nine months ended September 30, 2022, the Company recorded a $15.0 million settlement charge for a retired executive within other components of net periodic benefit credit/(cost).
Other activity, net primarily includes items associated with certain legal matters, as well as activities related to Murray. Refer to Note 18, "Commitments and Contingencies," for more information regarding activities related to Murray. During the nine months ended September 30, 2023, the Company recorded within other activity, net an impairment of an equity investment of $52.2 million.