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Other Income, Net
3 Months Ended
Mar. 31, 2025
Other Income and Expenses [Abstract]  
Other Income, Net
8. OTHER INCOME, NET

Other income, net includes the following components (in millions):
Three Months Ended
March 31,
 20252024
Interest and investment income$(36.2)$(34.0)
Net realized (gains) losses on investments
(0.5)0.2 
Other income(0.5)(0.8)
Other income, net$(37.2)$(34.6)