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Other Income, Net (Tables)
12 Months Ended
Dec. 31, 2023
Other Income and Expenses [Abstract]  
Schedule of other income (expense), net
Other income, net includes the following components (in millions):
 Year Ended December 31,
 202320222021
Interest and investment income$(100.9)$(58.0)$(18.9)
Net realized gains on investments(0.7)(2.3)(8.0)
Other-than-temporary impairment losses on investments— 11.9 0.8 
Current expected credit losses on loans to equity method investees— 7.5 — 
Gain on divestiture of a division— (1.4)— 
Escrow receipts on prior acquisition
(2.5)— — 
Other income
(2.3)(2.3)(0.7)
Other income, net
$(106.4)$(44.6)$(26.8)