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Earnings Per Common Share
3 Months Ended
Mar. 31, 2024
Earnings Per Share [Abstract]  
Earnings Per Common Share Earnings Per Common Share
Basic and diluted earnings per common share for the three months ended March 31, 2024 and 2023 were calculated as follows:

 Three Months Ended March 31,
 20242023
 (Dollars in millions, except per share amounts, shares in thousands)
Income (numerator)
Net income$57 511 
Net income applicable to common stock for computing basic earnings per common share57 511 
Net income as adjusted for purposes of computing diluted earnings per common share$57 511 
Shares (denominator):
Weighted-average number of shares:
Outstanding during period1,011,350 1,003,666 
Non-vested restricted stock(26,495)(22,111)
Weighted average shares outstanding for computing basic earnings per common share984,855 981,555 
Incremental common shares attributable to dilutive securities:
Shares issuable under convertible securities10 10 
Shares issuable under incentive compensation plans1,397 718 
Number of shares as adjusted for purposes of computing diluted earnings per common share986,262 982,283 
Basic earnings per common share$0.06 0.52 
Diluted earnings per common share
$0.06 0.52 

Our calculation of diluted earnings per common share excludes unvested restricted stock awards that are antidilutive as a result of unrecognized compensation cost. Such shares were 20.2 million and 21.2 million for the three months ended March 31, 2024 and 2023, respectively.