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Net Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Summary of net earnings per share | Net (loss) earnings per share were computed as follows:
| Three months ended September 30, |  | Nine months ended September 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
| (in millions, except per share amounts)
Net (loss) earnings attributable to common stockholders | $ | (185) |  |  | $ | (28) |  |  | $ | 212 |  |  | $ | 230 |
Basic (loss) earnings per common share: |  |  |  |  |  |  |
Weighted-average common shares outstanding | 214.9 |  |  | 213.9 |  |  | 215.3 |  |  | 215.0 |
Net (loss) earnings attributable to common stockholders | $ | (0.86) |  |  | $ | (0.13) |  |  | $ | 0.99 |  |  | $ | 1.07 |
Diluted (loss) earnings per common share: |  |  |  |  |  |  |
Weighted-average common shares outstanding | 214.9 |  |  | 213.9 |  |  | 215.3 |  |  | 215.0 |
Dilutive common shares—stock-based awards | — |  |  | — |  |  | 1.1 |  |  | 0.3 |
Diluted weighted-average shares outstanding | 214.9 |  |  | 213.9 |  |  | 216.4 |  |  | 215.3 |
Net (loss) earnings attributable to common stockholders | $ | (0.86) |  |  | $ | (0.13) |  |  | $ | 0.98 |  |  | $ | 1.07 |

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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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