Revenue Disaggregation of revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ (2,581)	$ (3,854)	$ (3,915)
Intersegment sales
Disaggregation of Revenue [Line Items]
Net sales	0	(2)	(3)
OSB - value-add [Member]
Disaggregation of Revenue [Line Items]
Net sales	(742)	(1,323)	(1,379)
OSB - value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	(2)	0
OSB - commodity [Member]
Disaggregation of Revenue [Line Items]
Net sales	(446)	(937)	(1,221)
OSB - commodity [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	(1)
Value-add [Member]
Disaggregation of Revenue [Line Items]
Net sales	(2,086)	(2,809)	(2,570)
Value-add [Member] | Intersegment sales
Disaggregation of Revenue [Line Items]
Net sales	0	(2)	0
Other products [Member]
Disaggregation of Revenue [Line Items]
Net sales	(49)	(107)	(123)
Other products [Member] | Intersegment sales
Disaggregation of Revenue [Line Items]
Net sales	0	0	(3)
Commodity Products [Member]
Disaggregation of Revenue [Line Items]
Net sales
Commodity Products [Member] | Intersegment sales
Disaggregation of Revenue [Line Items]
Net sales			0
Siding Solutions
Disaggregation of Revenue [Line Items]
Net sales	(1,343)	(1,486)	(1,191)
Siding Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0	0
Siding | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(1,328)	(1,469)	(1,170)
Siding | OSB - value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0	0
Siding | OSB - commodity [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0
Siding | Value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(1,319)	(1,463)	(1,158)
Siding | Other products [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(9)	(6)	(12)
Siding | Commodity Products [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales			0
Siding | Siding Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(1,319)	(1,463)	(1,158)
OSB | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(1,026)	(2,062)	(2,387)
OSB | OSB - value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(565)	(1,110)	(1,152)
OSB | OSB - commodity [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(446)	(938)
OSB | Value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(565)	(1,110)	(1,152)
OSB | Other products [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(15)	(14)	(14)
OSB | Commodity Products [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales			(1,221)
OSB | Siding Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0	0
South America | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(205)	(241)	(265)
South America | OSB - value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(177)	(215)	(227)
South America | OSB - commodity [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0
South America | Value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(201)	(238)	(260)
South America | Other products [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(4)	(3)	(5)
South America | Commodity Products [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales			0
South America | Siding Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(24)	(23)	(33)
Other | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(22)	(84)	(95)
Other | OSB - value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0	0
Other | OSB - commodity [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0
Other | Value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0	0
Other | Other products [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(22)	(84)	(95)
Other | Commodity Products [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales			0
Other | Siding Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	$ 0	$ 0	$ 0