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Earnings Per Share | 12 Months Ended
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Dec. 31, 2019
Earnings Per Share [Abstract] |
Earnings Per Share | EARNINGS PER SHARE The computations of UAL's basic and diluted earnings per share are set forth below for the years ended December 31 (in millions, except per share amounts):
|  | 2019 |  | 2018 (a) |  | 2017 (a)
Earnings available to common stockholders |  | $ | 3,009 |  |  | $ | 2,122 |  |  | $ | 2,143 |
Basic weighted-average shares outstanding |  | 258.8 |  |  | 275.5 |  |  | 302.7 |
Effect of employee stock awards |  | 1.1 |  |  | 1.2 |  |  | 0.9 |
Diluted weighted-average shares outstanding |  | 259.9 |  |  | 276.7 |  |  | 303.6 |
Earnings per share, basic |  | $ | 11.63 |  |  | $ | 7.70 |  |  | $ | 7.08 |
Earnings per share, diluted |  | $ | 11.58 |  |  | $ | 7.67 |  |  | $ | 7.06 |
(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 of this report for additional information on the adjustments. The number of antidilutive securities excluded from the computation of diluted earnings per share amounts was not material.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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