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Other Liabilities
 12 Months Ended
Dec. 31, 2020
Other Liabilities Disclosure [Abstract]  
Other Liabilities Other Liabilities
December 31,
(In millions)20202019
Workers’ compensation and other claims$75.0 81.3 
Post-employment benefits7.2 7.2 
Asset retirement and remediation obligations26.8 18.6 
Acquisition-related obligations25.7 1.5 
Derivative instruments19.3 11.3 
Noncurrent tax liabilities16.1 15.3 
Deferred compensation10.6 10.9 
Other70.3 37.0 
Other liabilities$251.0 183.1