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Other Income, Net
3 Months Ended
Mar. 31, 2024
Other Income and Expenses [Abstract]  
Other Income, Net
9. OTHER INCOME, NET

Other income, net includes the following components (in millions):
Three Months Ended
March 31,
 20242023
Interest and investment income$(34.0)$(50.3)
Net realized losses on investments0.2 0.7 
Other income(0.7)(0.8)
Other income, net$(34.5)$(50.4)