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8. Other Income and Expenses
3 Months Ended
Mar. 31, 2023
Other Income and Expenses [Abstract]  
Other Income and Other Expense Disclosure .    OTHER INCOME, NET
Other income, net includes the following components (in millions):
Three Months Ended
March 31,
 20232022
Interest and investment income$(50.3)$(32.2)
Net realized losses on investments0.7 — 
Other income(0.8)(0.4)
Other income, net$(50.4)$(32.6)