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Earnings Per Share and Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2021
Stockholders' Equity Note [Abstract] |
Calculation of basic and diluted EPS | The following table presents the calculation of basic and diluted net income (loss) attributable to common stockholders per share:
|  | Three months ended March 31,
millions except per share amounts |  | 2021 |  | 2020
Net income (loss) from continuing operations |  | $ | 299 |  |  | $ | (2,013) |
Loss from discontinued operations |  | (445) |  |  | — |
Net loss |  | (146) |  |  | (2,013) |
Less: Preferred stock dividends |  | (200) |  |  | (219) |
Net loss attributable to common stockholders |  | $ | (346) |  |  | $ | (2,232) |
Weighted-average number of basic shares |  | 933.1 |  | 896.7
Basic loss per common share |  | $ | (0.37) |  |  | $ | (2.49) |
Net loss, net of participating securities |  | (346) |  |  | (2,232) |
Dilutive securities |  | 947.9 |  |  | 896.7 |
Diluted loss per common share |  | $ | (0.36) |  |  | $ | (2.49) |

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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=6371337&loc=d3e3550-109257 + Details
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