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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2025
Disaggregation of Revenue [Abstract] |
Disaggregation of Revenue | The following tables present our reportable segment revenues, disaggregated by revenue source (dollar amounts in millions):
| Three Months Ended September 30, 2025
By product type and family: | Siding |  | OSB |  | LPSA |  | Other |  |  |  | Total
Value-add |  |  |  |  |  |  |  |  |  |  |
Siding Solutions | $ | 440 |  |  | $ | — |  |  | $ | 3 |  |  | $ | — |  |  |  |  | $ | 443 |
OSB - Structural Solutions | — |  |  | 105 |  |  | 35 |  |  | — |  |  |  |  | 140 |
| 440 |  |  | 105 |  |  | 38 |  |  | — |  |  |  |  | 583 |
Commodity |  |  |  |  |  |  |  |  |  |  |
OSB - commodity | — |  |  | 71 |  |  | — |  |  | — |  |  |  |  | 71 |
Other |  |  |  |  |  |  |  |  |  |  |
Other products | 2 |  |  | 3 |  |  | 1 |  |  | 2 |  |  |  |  | 9 |
| $ | 443 |  |  | $ | 179 |  |  | $ | 39 |  |  | $ | 2 |  |  |  |  | $ | 663 |
| Three Months Ended September 30, 2024
By product type and family: | Siding |  | OSB |  | LPSA |  | Other |  |  |  | Total
Value-add |  |  |  |  |  |  |  |  |  |  |
Siding Solutions | $ | 418 |  |  | $ | — |  |  | $ | 6 |  |  | $ | — |  |  |  |  | $ | 423 |
OSB - Structural Solutions | — |  |  | 136 |  |  | 40 |  |  | — |  |  |  |  | 175 |
| 418 |  |  | 136 |  |  | 46 |  |  | — |  |  |  |  | 599 |
Commodity |  |  |  |  |  |  |  |  |  |  |
OSB - commodity | — |  |  | 112 |  |  | — |  |  | — |  |  |  |  | 112 |
Other |  |  |  |  |  |  |  |  |  |  |
Other products | 3 |  |  | 5 |  |  | 1 |  |  | 2 |  |  |  |  | 11 |
| $ | 420 |  |  | $ | 253 |  |  | $ | 47 |  |  | $ | 2 |  |  |  |  | $ | 722 |
| Nine Months Ended September 30, 2025
By product type and family: | Siding |  | OSB |  | LPSA |  | Other |  |  |  | Total
Value-add |  |  |  |  |  |  |  |  |  |  |
Siding Solutions | $ | 1,298 |  |  | $ | — |  |  | $ | 16 |  |  | $ | — |  |  |  |  | $ | 1,313 |
OSB - Structural Solutions | — |  |  | 391 |  |  | 116 |  |  | — |  |  |  |  | 507 |
| 1,298 |  |  | 391 |  |  | 131 |  |  | — |  |  |  |  | 1,820 |
Commodity |  |  |  |  |  |  |  |  |  |  |
OSB - commodity | — |  |  | 295 |  |  | — |  |  | — |  |  |  |  | 295 |
Other |  |  |  |  |  |  |  |  |  |  |
Other products | 7 |  |  | 11 |  |  | 3 |  |  | 6 |  |  |  |  | 27 |
| $ | 1,305 |  |  | $ | 696 |  |  | $ | 134 |  |  | $ | 6 |  |  |  |  | $ | 2,141 |
| Nine Months Ended September 30, 2024
By product type and family: | Siding |  | OSB |  | LPSA |  | Other |  |  |  | Total
Value-add |  |  |  |  |  |  |  |  |  |  |
Siding Solutions | $ | 1,190 |  |  | $ | — |  |  | $ | 17 |  |  | $ | — |  |  |  |  | $ | 1,207 |
OSB - Structural Solutions | — |  |  | 507 |  |  | 119 |  |  | — |  |  |  |  | 626 |
| 1,190 |  |  | 507 |  |  | 136 |  |  | — |  |  |  |  | 1,833 |
Commodity |  |  |  |  |  |  |  |  |  |  |
OSB - commodity | — |  |  | 395 |  |  | — |  |  | — |  |  |  |  | 395 |
Other |  |  |  |  |  |  |  |  |  |  |
Other products | 7 |  |  | 15 |  |  | 4 |  |  | 7 |  |  |  |  | 33 |
| $ | 1,196 |  |  | $ | 917 |  |  | $ | 140 |  |  | $ | 7 |  |  |  |  | $ | 2,261 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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