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EARNINGS PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2023
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following table is a reconciliation of weighted-average shares for calculating basic and diluted earnings per share (in millions, except per share amounts):
| Three Months Ended June 30, | Six Months Ended June 30,
| 2023 | 2022 | 2023 | 2022
Net earnings attributable to Owens Corning | $ | 345 |  | $ | 343 |  | $ | 728 |  | $ | 647 |
Weighted-average number of shares outstanding used for basic earnings per share | 90.5 |  | 97.6 |  | 90.9 |  | 98.6 |
Non-vested restricted stock units and performance share units | 0.8 |  | 0.8 |  | 0.8 |  | 0.7 |
Weighted-average number of shares outstanding and common equivalent shares used for diluted earnings per share | 91.3 |  | 98.4 |  | 91.7 |  | 99.3 |
Earnings per common share attributable to Owens Corning common stockholders: |  |  |  |
Basic | $ | 3.81 |  | $ | 3.51 |  | $ | 8.01 |  | $ | 6.56 |
Diluted | $ | 3.78 |  | $ | 3.49 |  | $ | 7.94 |  | $ | 6.52 |

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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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