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Product Warranties
 9 Months Ended
Sep. 30, 2025
Guarantees and Product Warranties [Abstract]  
Product Warranties Product Warranties
The Company offers warranties on the sales of certain of its products with terms that are consistent with the market and records an accrual for the estimated future claims. The following table presents the Company’s warranty liability activity:
(dollars in millions)Three Months Ended
September 30,
20252024
Balance at July 1,$201.1 $187.6 
Expense18.2 16.0 
Claims settled(15.8)(16.4)
Balance at September 30,$203.5 $187.2 

(dollars in millions)Nine Months Ended
September 30,
20252024
Balance at January 1,$190.4 $188.1 
Expense61.0 58.5 
Acquired obligations(1)
1.1 — 
Claims settled(49.0)(59.4)
Balance at September 30,$203.5 $187.2 
(1) Refer to Note 3 for additional information regarding the acquisition of Pureit