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Earnings (Loss) Per Common Share
 12 Months Ended
Dec. 31, 2022
Earnings Per Share [Abstract]  
Earnings (Loss) Per Common Share Earnings (Loss) Per Common Share
The following table provides the computation of basic and diluted earnings (loss) per common share (EPS) (in millions, except share and per share amounts):
 Year Ended December 31,
 202220212020
Basic EPS:
Net income (loss)$127 $(1,993)$(8,885)
Weighted average common shares outstanding (in thousands)650,345 644,015 483,888 
Basic EPS$0.20 $(3.09)$(18.36)
Diluted EPS:
Net income (loss) for purposes of computing diluted EPS$127 $(1,993)$(8,885)
Share computation for diluted EPS (in thousands):
Basic weighted average common shares outstanding650,345 644,015 483,888 
Dilutive effect of restricted stock unit awards1,579 — — 
Dilutive effect of certain PSP Warrants and Treasury Loan Warrants3,198 — — 
Diluted weighted average common shares outstanding655,122 644,015 483,888 
Diluted EPS$0.19 $(3.09)$(18.36)
The following were excluded from the calculation of diluted EPS because inclusion of such shares would be antidilutive (in thousands):
Year Ended December 31,
202220212020
6.50% convertible senior notes
61,728 61,728 31,882 
Restricted stock unit awards3,987 3,420 4,584 
In addition, certain shares underlying our PSP Warrants and Treasury Loan Warrants for the years ended December 31, 2022, 2021 and 2020, were excluded from the calculation of diluted EPS because inclusion of such shares would be antidilutive.