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Earnings (Loss) Per Share (Tables) | 12 Months Ended
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Dec. 31, 2022
Earnings Per Share [Abstract] |
Computation of Earnings Per Share | The computations of UAL's basic and diluted earnings (loss) per share are set forth below for the years ended December 31 (in millions, except per share amounts):
|  | 2022 |  | 2021 |  | 2020
Earnings (loss) available to common stockholders |  | $ | 737 |  |  | $ | (1,964) |  |  | $ | (7,069) |
Basic weighted-average shares outstanding |  | 326.4 |  |  | 321.9 |  |  | 279.4 |
Dilutive effect of employee stock awards |  | 2.2 |  |  | — |  |  | — |
Dilutive effect of stock warrants |  | 1.5 |  |  | — |  |  | — |
Diluted weighted-average shares outstanding |  | 330.1 |  |  | 321.9 |  |  | 279.4 |
Earnings (loss) per share, basic |  | $ | 2.26 |  |  | $ | (6.10) |  |  | $ | (25.30) |
Earnings (loss) per share, diluted |  | $ | 2.23 |  |  | $ | (6.10) |  |  | $ | (25.30) |
Potentially dilutive securities (a) |  |  |  |  |  |
Stock warrants (b) |  | 3.5 |  |  | 0.9 |  |  | — |
Employee stock awards |  | 0.7 |  |  | 0.7 |  |  | 1.0 |
(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. (b) Represent warrants issued to Treasury pursuant to the payroll support program, including extensions, and the loan program established under the CARES Act. See Note 2 of this report for additional information about these warrants.

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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 https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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