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Non-operating income, net
 12 Months Ended
Dec. 31, 2024
Non-operating (loss) income, net [Abstract]  
Non-operating Income, Net Non-operating Income, Net
The following table presents the components of Non-operating income, net:
Year Ended December 31,
202420232022
(In millions)
Interest income$37.4 $46.1 $14.9 
Other, net1.6 5.1 (2.5)
Total non-operating income, net$39.0 $51.2 $12.4 
Interest income is earned principally from the Company’s surplus cash balances and marketable securities. The decrease in interest income in 2024 primarily reflects the lower amounts invested in debt securities in 2024 and slightly lower interest rates on the Company’s investments in debt securities compared to 2023. Other non-operating income, net, reflects net gains and losses from the Company’s foreign currency exposure and related hedges.