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Earnings (Loss) Per Common Share (Tables) | 3 Months Ended
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Mar. 31, 2020
Earnings Per Share [Abstract] |
Schedule of earnings (loss) per common share, basic and diluted | Earnings (loss) per common share were computed as follows (dollars and shares in millions, except per share amounts):
| Three Months Ended March 31,
| 2020 |  | 2019
Earnings (loss) per common share |  |  |
Net income (loss) attributable to Valero stockholders | $ | (1,851 | ) |  | $ | 141 |
Less: Income allocated to participating securities | 1 |  |  | 1 |
Net income (loss) available to common stockholders | $ | (1,852 | ) |  | $ | 140 |
Weighted-average common shares outstanding | 408 |  |  | 416 |
Earnings (loss) per common share | $ | (4.54 | ) |  | $ | 0.34 |
Earnings (loss) per common share – assuming dilution |  |  |
Net income (loss) attributable to Valero stockholders | $ | (1,851 | ) |  | $ | 141 |
Weighted-average common shares outstanding | 408 |  |  | 416 |
Effect of dilutive securities | — |  |  | 2 |
Weighted-average common shares outstanding – assuming dilution | 408 |  |  | 418 |
Earnings (loss) per common share – assuming dilution | $ | (4.54 | ) |  | $ | 0.34 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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