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Summary of Significant Accounting Policies (Tables)
 6 Months Ended
Jun. 30, 2026
Accounting Policies [Abstract]  
Schedule of Inventory Inventories are stated at the lower of cost or net realizable value, determined by either the first-in, first-out method or the weighted average cost method, depending on reportable segment, and consist of the following:
June 30,December 31,
(in millions)20262025
Finished goods$498.7 $484.7 
Work-in-process17.9 16.5 
Raw materials and supplies133.2 128.8 
$649.8 $630.0 
Schedule of Long-term Debt Instruments The fair values of these material financial instruments are as follows:
Fair Value
(in millions)June 30, 2026December 31, 2025
2029 Senior Notes$771.9 $780.1 
2031 Senior Notes$736.5 $748.8