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Earnings (Loss) Per Share (Tables) | 6 Months Ended
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Jun. 30, 2020
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Earnings Per Share | The computations of UAL's basic and diluted earnings (loss) per share are set forth below (in millions, except per share amounts):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
Earnings (loss) available to common stockholders | $ | (1,627 | ) |  | $ | 1,052 |  |  | $ | (3,331 | ) |  | $ | 1,344 |
Basic weighted-average shares outstanding | 280.7 |  |  | 260.8 |  |  | 264.6 |  |  | 263.9 |
Effect of employee stock awards and warrants (a) | — |  |  | 0.8 |  |  | — |  |  | 1.0 |
Diluted weighted-average shares outstanding | 280.7 |  |  | 261.6 |  |  | 264.6 |  |  | 264.9 |
Earnings (loss) per share, basic | $ | (5.79 | ) |  | $ | 4.03 |  |  | $ | (12.59 | ) |  | $ | 5.09 |
Earnings (loss) per share, diluted | $ | (5.79 | ) |  | $ | 4.02 |  |  | $ | (12.59 | ) |  | $ | 5.07 |
(a) Antidilutive common stock equivalents excluded from the diluted per share calculation are not material.

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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