Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Details)

v3.22.0.1
Fair Value Measurements (Details) - Fair Value, Recurring [Member] - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Liabilities:    
Liabilities Measured at Net Asset Value $ 10.2 $ 10.7
Fair Value, Inputs, Level 1 [Member]    
Assets:    
Cash Equivalents 0.4 19.3
Short-Term Investments in Marketable Securities 0.8 56.7
Restricted Cash 12.2 10.7
Liabilities:    
Deferred Compensation 1.4 1.1
Fair Value, Inputs, Level 2 [Member]    
Assets:    
Derivatives 25.1 2.2
Liabilities:    
Derivatives 2.9 12.0
Deferred Compensation $ 17.7 $ 18.7