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Loss Per Share (Tables)
3 Months Ended
Mar. 31, 2022
Earnings Per Share [Abstract]  
Schedule of earnings per share, basic and diluted
The following table shows how we computed loss per common share for the three months ended March 31, 2022 and 2021 (dollars and share data in millions):
Three Months Ended March 31,
 20222021
Net loss$(255)$(247)
Weighted average basic shares320.5 316.3 
Effect of dilutive securities— — 
Weighted average diluted shares320.5 316.3 
Loss per common share
Basic$(0.79)$(0.78)
Diluted$(0.79)$(0.78)