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CASH AND CASH EQUIVALENTS
12 Months Ended
Dec. 31, 2021
Subclassifications of assets, liabilities and equities [abstract]  
Cash and Cash Equivalents
December 31,
2021
December 31,
2020
Cash$429.7 $920.9 
Short-term deposits with initial maturities of three months or less115.2 20.6 
$544.9 $941.5