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Loss Per Share
 9 Months Ended
Sep. 30, 2024
Earnings Per Share [Abstract]  
Loss Per Share Loss Per Share
Basic loss per share is calculated by dividing net loss by the weighted average number of shares outstanding. Diluted loss per share is calculated similarly but includes potential dilution from restricted stock units, the crewmember stock purchase plan, convertible notes, warrants issued under various federal payroll support programs, and any other potentially dilutive instruments using the treasury stock and if-converted method. Anti-dilutive common stock equivalents excluded from the computation of diluted loss per share amounts were 4.4 million and 2.7 million for the three months ended September 30, 2024 and September 30, 2023, respectively. Anti-dilutive common stock equivalents excluded from the computation of diluted loss
per share amounts were 3.9 million and 2.0 million for the nine months ended September 30, 2024 and September 30, 2023, respectively.
The following table shows how we computed loss per common share for the three and nine months ended September 30, 2024 and 2023 (dollars and share data in millions):
Three Months Ended September 30,Nine Months Ended September 30,
 2024202320242023
Net loss$(60)$(153)$(751)$(207)
Weighted average basic shares346.9 333.3 344.0 331.0 
Effect of dilutive securities— — — — 
Weighted average diluted shares$346.9 $333.3 $344.0 $331.0 
Loss per common share
Basic$(0.17)$(0.46)$(2.18)$(0.63)
Diluted$(0.17)$(0.46)$(2.18)$(0.63)