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Loss Per Share (Tables) | 3 Months Ended
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Mar. 31, 2021
Earnings Per Share [Abstract] |
Schedule of earnings per share, basic and diluted | The following table shows how we computed basic and diluted earnings per common share for the three months ended March 31, 2021 and 2020 (dollars and share data in millions):
| Three Months Ended March 31,
| 2021 |  | 2020
Net loss | $ | (247) |  |  | $ | (268) |
Weighted average basic shares | 316.3 |  |  | 277.2 |
Effect of dilutive securities | — |  |  | — |
Weighted average diluted shares | 316.3 |  |  | 277.2 |
Loss per common share |  |  |
Basic | $ | (0.78) |  |  | $ | (0.97) |
Diluted | $ | (0.78) |  |  | $ | (0.97) |

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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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