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Income Taxes (Tables)
3 Months Ended
Jun. 30, 2024
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit)
Income tax expense was as follows:
Three Months Ended June 30,
(Dollars in millions)20242023
Income tax expense$124 $94 
Reported income tax rate11.4 %8.6 %