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Income Taxes (Tables)
3 Months Ended
Mar. 31, 2025
Income Tax Disclosure [Abstract]  
Income Tax Expense From Continuing Operations And The Effective Tax Rate
The following table presents Income tax expense and the effective tax rate:
 Three Months Ended March 31,
 20252024
 (Dollars in millions)
Income tax expense$59.1 $59.9 
Effective tax rate23 %24 %