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Other Liabilities
 12 Months Ended
Dec. 31, 2021
Other Liabilities [Abstract]  
Other Liabilities Other Liabilities
(in millions) December 31,20212020
Environmental$25.8 $29.4 
Long-term lease liabilities79.3 86.4 
Other56.0 55.5 
Total$161.1 $171.3