Revenue Disaggregation of revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 3,854	$ 3,915	$ 2,399
Intersegment sales
Disaggregation of Revenue [Line Items]
Net sales	(2)	(3)	(1)
OSB - commodity [Member]
Disaggregation of Revenue [Line Items]
Net sales	937	1,221	631
OSB - commodity [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(1)	0
OSB - value-add [Member]
Disaggregation of Revenue [Line Items]
Net sales	1,323	1,379	726
OSB - value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	(2)	0	0
Value-add [Member]
Disaggregation of Revenue [Line Items]
Net sales	2,809	2,570	1,661
Value-add [Member] | Intersegment sales
Disaggregation of Revenue [Line Items]
Net sales	(2)	0	0
Other products [Member]
Disaggregation of Revenue [Line Items]
Net sales	107	123	107
Other products [Member] | Intersegment sales
Disaggregation of Revenue [Line Items]
Net sales	0	(3)	0
Commodity Products [Member]
Disaggregation of Revenue [Line Items]
Net sales
Commodity Products [Member] | Intersegment sales
Disaggregation of Revenue [Line Items]
Net sales			(1)
Siding Solutions
Disaggregation of Revenue [Line Items]
Net sales	1,486	1,191	935
Siding Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0	0
Siding | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,469	1,170	959
Siding | OSB - commodity [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0
Siding | OSB - value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0	0
Siding | Value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,463	1,158	915
Siding | Other products [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	6	12	44
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	1,463	1,158	915
OSB | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	2,062	2,387	1,220
OSB | OSB - commodity [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	938	1,221
OSB | OSB - value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,110	1,152	580
OSB | Value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,110	1,152	580
OSB | Other products [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	14	14	9
OSB | Commodity Products [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales			632
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	241	265	169
South America | OSB - commodity [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0
South America | OSB - value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	215	227	146
South America | Value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	238	260	166
South America | Other products [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	3	5	3
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	23	33	20
Other | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	84	95	52
Other | OSB - commodity [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0
Other | OSB - value-add [Member] | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	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	84	95	52
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