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Segment Information Identifiable assets (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Assets | $ 2,086 | $ 1,835
Non-segment related |  |
Assets | 778 | 469
OSB | Operating Segments |  |
Assets | 511 | 558
Siding | Operating Segments |  |
Assets | 521 | 516
EWP | Operating Segments |  |
Assets | 152 | 146
South America | Operating Segments |  |
Assets | 106 | 109
Other | Operating Segments |  |
Assets | $ 19 | $ 37

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