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EARNINGS PER SHARE (Tables)
6 Months Ended
Jun. 30, 2024
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share Reconciliation
A reconciliation of net income and shares used to calculate basic and diluted earnings per share is as follows (dollars in millions and shares in thousands):
Three months endedSix months ended
June 30,June 30,
 2024202320242023
Net income for basic and diluted earnings per share$116.3 $73.7 $228.6 $72.9 
Shares:  
Weighted average shares outstanding for basic earnings per share107,731 114,273 108,347 114,409 
Effect of dilutive securities on weighted average shares:  
Amounts related to employee benefit plans1,527 1,377 1,705 1,780 
Weighted average shares outstanding for diluted earnings per share109,258 115,650 110,052 116,189