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EARNINGS PER COMMON SHARE COMPUTATION
3 Months Ended
Mar. 31, 2022
Earnings Per Share [Abstract]  
EARNINGS PER COMMON SHARE COMPUTATION EARNINGS PER COMMON SHARE COMPUTATION
Detail supporting the computation of basic and diluted earnings per common share was as follows for the three months ended March 31, 2022 and 2021:
Three months ended March 31,
20222021
(dollars in millions, except per common share results; number of shares in thousands)
Net income available for common stockholders$930 $828 
Weighted average outstanding shares of common stock
    used to compute basic earnings per common share
126,938 128,931 
Dilutive effect of:
Employee stock options40 52 
Restricted stock496 568 
Shares used to compute diluted earnings per common share127,474 129,551 
Basic earnings per common share$7.32 $6.42 
Diluted earnings per common share$7.29 $6.39 
Number of antidilutive stock options and restricted stock
    excluded from computation
626 531