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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2021
Earnings Per Share [Abstract] |
Computation of basic and diluted EPS | The table below sets forth the computation of basic and diluted EPS:
| Year ended December 31
| 2021 |  |  | 2020 |  | 2019
Basic EPS Calculation |  |  |  |  |  |
Earnings available to common stockholders - Basic 1 | $ | 15,625 |  |  |  | $ | (5,543) |  |  | $ | 2,924 |
Weighted-average number of common shares outstanding 2 | 1,916 |  |  |  | 1,870 |  |  | 1,882 |
Add: Deferred awards held as stock units | — |  |  |  | — |  |  | — |
Total weighted-average number of common shares outstanding | 1,916 |  |  |  | 1,870 |  |  | 1,882 |
Earnings per share of common stock - Basic | $ | 8.15 |  |  |  | $ | (2.96) |  |  | $ | 1.55 |
Diluted EPS Calculation |  |  |  |  |  |
Earnings available to common stockholders - Diluted 1 | $ | 15,625 |  |  |  | $ | (5,543) |  |  | $ | 2,924 |
Weighted-average number of common shares outstanding 2 | 1,916 |  |  |  | 1,870 |  |  | 1,882 |
Add: Deferred awards held as stock units | — |  |  |  | — |  |  | — |
Add: Dilutive effect of employee stock-based awards | 4 |  |  |  | — |  |  | 13 |
Total weighted-average number of common shares outstanding | 1,920 |  |  |  | 1,870 |  |  | 1,895 |
Earnings per share of common stock - Diluted | $ | 8.14 |  |  |  | $ | (2.96) |  |  | $ | 1.54 |
1 There was no effect of dividend equivalents paid on stock units or dilutive impact of employee stock-based awards on earnings.
2 Millions of shares; 1 million shares of employee-based awards were not included in the 2020 diluted EPS calculation as the result would be anti-dilutive.

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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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