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Earnings (Loss) Per Common Share (Tables) | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share [Abstract] |
Computation of Basic and Diluted 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,
| 2023 |  | 2022 |  | 2021
Basic EPS: |  |  |  |  |
Net income (loss) | $ | 822 |  |  | $ | 127 |  |  | $ | (1,993) |
Weighted average common shares outstanding (in thousands) | 653,612 |  |  | 650,345 |  |  | 644,015 |
Basic EPS | $ | 1.26 |  |  | $ | 0.20 |  |  | $ | (3.09) |
Diluted EPS: |  |  |  |  |
Net income (loss) | $ | 822 |  |  | $ | 127 |  |  | $ | (1,993) |
Interest expense on 6.50% convertible senior notes | 46 |  |  | — |  |  | — |
Net income (loss) for purposes of computing diluted EPS | $ | 868 |  |  | $ | 127 |  |  | $ | (1,993) |
Share computation for diluted EPS (in thousands): |  |  |  |  |
Basic weighted average common shares outstanding | 653,612 |  |  | 650,345 |  |  | 644,015 |
Dilutive effect of restricted stock unit awards | 1,830 |  |  | 1,579 |  |  | — |
Dilutive effect of certain PSP Warrants and Treasury Loan Warrants | 2,499 |  |  | 3,198 |  |  | — |
Assumed conversion of 6.50% convertible senior notes | 61,728 |  |  | — |  |  | — |
Diluted weighted average common shares outstanding | 719,669 |  |  | 655,122 |  |  | 644,015 |
Diluted EPS | $ | 1.21 |  |  | $ | 0.19 |  |  | $ | (3.09) |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share | The following were excluded from the calculation of diluted EPS because inclusion of such shares would be antidilutive (in thousands):
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
Restricted stock unit awards | 4,371 |  |  | 3,987 |  |  | 3,420 |
6.50% convertible senior notes | — |  |  | 61,728 |  |  | 61,728 |
In addition, certain shares underlying our PSP Warrants and Treasury Loan Warrants for the years ended December 31, 2023, 2022 and 2021, were excluded from the calculation of diluted EPS because inclusion of such shares would be antidilutive.

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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