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Fair Value Measurements (Tables)
 12 Months Ended
Dec. 31, 2023
Fair Value Disclosures [Abstract]  
Financial Assets And Liabilities Measured At Fair Value On a Recurring Basis The following table summarizes the Company’s assets and liabilities measured at fair value on a recurring basis, categorized using the fair value hierarchy.
December 31, 2023December 31, 2022December 31, 2021
TotalLevel 1Level 2TotalLevel 1Level 2TotalLevel 1Level 2
Assets:
Deferred compensation plan$84.7 $84.7 $74.1 $43.7 $30.4 $80.4 $43.1 $37.3 
Qualified replacement plan— 29.8 29.8 98.8 98.8 
Net investment hedges—  9.1 9.1 — 
$84.7 $84.7 $— $113.0 $73.5 $39.5 $179.2 $141.9 $37.3 
Liabilities:
Net investment hedges$24.4 $24.4 $— $36.5 $36.5 
Carrying Amount and Fair Value of Debt The following table summarizes the carrying amounts and fair values of the Company’s publicly traded debt and non-traded debt.
 December 31,
 202320222021
Carrying
Amount		Fair
Value		Carrying AmountFair
Value		Carrying AmountFair
Value
Publicly traded debt$9,475.8 $8,615.1 $9,590.0 $8,382.3 $8,849.6 $9,777.4 
Non-traded debt0.9 0.8 1.6 1.5 1.9 1.9