Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Net sales	$ 814	$ 611	$ 1,539	$ 1,195
Siding
Disaggregation of Revenue [Line Items]
Net sales	415	320	776	651
OSB
Disaggregation of Revenue [Line Items]
Net sales	351	229	664	418
LPSA
Disaggregation of Revenue [Line Items]
Net sales	46	53	93	108
Other
Disaggregation of Revenue [Line Items]
Net sales	2	9	5	17
Value-add
Disaggregation of Revenue [Line Items]
Net sales	655	504	1,234	992
Value-add | Siding
Disaggregation of Revenue [Line Items]
Net sales	413	318	772	647
Value-add | OSB
Disaggregation of Revenue [Line Items]
Net sales	197	135	371	239
Value-add | LPSA
Disaggregation of Revenue [Line Items]
Net sales	45	52	90	106
Value-add | Other
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Value-add | Siding Solutions
Disaggregation of Revenue [Line Items]
Net sales	417	324	783	661
Value-add | Siding Solutions | Siding
Disaggregation of Revenue [Line Items]
Net sales	413	318	772	647
Value-add | Siding Solutions | OSB
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Value-add | Siding Solutions | LPSA
Disaggregation of Revenue [Line Items]
Net sales	4	6	11	14
Value-add | Siding Solutions | Other
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Value-add | OSB - Structural Solutions
Disaggregation of Revenue [Line Items]
Net sales	238	180	451	330
Value-add | OSB - Structural Solutions | Siding
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Value-add | OSB - Structural Solutions | OSB
Disaggregation of Revenue [Line Items]
Net sales	197	135	371	239
Value-add | OSB - Structural Solutions | LPSA
Disaggregation of Revenue [Line Items]
Net sales	41	46	79	92
Value-add | OSB - Structural Solutions | Other
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Commodity | OSB - commodity
Disaggregation of Revenue [Line Items]
Net sales	149	92	283	175
Commodity | OSB - commodity | Siding
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Commodity | OSB - commodity | OSB
Disaggregation of Revenue [Line Items]
Net sales	149	92	283	175
Commodity | OSB - commodity | LPSA
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Commodity | OSB - commodity | Other
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Other | Other products
Disaggregation of Revenue [Line Items]
Net sales	10	14	22	28
Other | Other products | Siding
Disaggregation of Revenue [Line Items]
Net sales	2	2	4	4
Other | Other products | OSB
Disaggregation of Revenue [Line Items]
Net sales	4	2	9	4
Other | Other products | LPSA
Disaggregation of Revenue [Line Items]
Net sales	1	1	3	2
Other | Other products | Other
Disaggregation of Revenue [Line Items]
Net sales	$ 2	$ 9	$ 5	$ 17