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Loss Per Share (Tables) | 3 Months Ended
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Mar. 31, 2022
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Earnings Per Share | The computations of UAL's basic and diluted loss per share are set forth below (in millions, except per share amounts):
| Three Months Ended March 31, |  |
| 2022 |  | 2021 |  |  |  |
Loss available to common stockholders | $ | (1,377) |  |  | $ | (1,357) |  |  |  |  |
Weighted-average shares outstanding, basic and diluted | 325.0 |  |  | 316.6 |  |  |  |  |
Loss per share, basic and diluted | $ | (4.24) |  |  | $ | (4.29) |  |  |  |  |
Potentially dilutive securities (a) |  |  |  |  |  |  |
Stock warrants | 1.5 |  |  | — |  |  |  |  |
Employee stock awards | 0.7 |  |  | 0.7 |  |  |  |  |
(a) Weighted-average potentially dilutive securities outstanding excluded from the computation of diluted earnings per share because the securities would have had an antidilutive effect. |  |  |  |

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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=124432515&loc=d3e3550-109257 + Details
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