| **Product Warranties**                           | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
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| **Guarantees and Product Warranties [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Product Warranties                               | Product WarrantiesThe 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 EndedMarch 31,20242023Balance at January 1,$188.1 $182.5 Expense19.7 18.4 Claims settled(22.8)(19.7)Balance at March 31,$185.0 $181.2  |

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| - Definition
The entire disclosure for standard and extended product warranties and other product guarantee contracts, including a tabular reconciliation of the changes in the guarantor's aggregate product warranty liability for the reporting period.
+ References
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