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Earnings per Share (Tables) | 6 Months Ended
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Jun. 30, 2023
Earnings Per Share [Abstract] |
Components of Basic and Diluted Earnings Per Share | The components of basic and diluted earnings per share are as follows:
| Three Months Ended June 30, |  | Six Months Ended June 30,
In millions, except per share amounts | 2023 |  | 2022 |  | 2023 |  | 2022
Net income (loss) attributable to common stockholders | $ | 17 |  |  | $ | (4) |  |  | $ | 57 |  |  | $ | 32 |
Weighted average outstanding shares of common stock | 101.0 |  |  | 103.5 |  |  | 101.2 |  |  | 104.2 |
Dilutive effect of employee stock options, restricted stock and other stock awards | 1.9 |  |  | — |  |  | 2.1 |  |  | 2.9 |
Common stock and common stock equivalents | 102.9 |  |  | 103.5 |  |  | 103.3 |  |  | 107.1 |
Net income (loss) per share: |  |  |  |  |  |  |
Basic | $ | 0.17 |  |  | $ | (0.04) |  |  | $ | 0.56 |  |  | $ | 0.31 |
Diluted | $ | 0.17 |  |  | $ | (0.04) |  |  | $ | 0.55 |  |  | $ | 0.30 |

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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