Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ 1,130	$ 1,168	$ 2,297	$ 2,062
Siding [Member]
Disaggregation of Revenue [Line Items]
Net sales	358	291	689	576
OSB [Member]
Disaggregation of Revenue [Line Items]
Net sales	673	778	1,417	1,317
Other [Member]
Disaggregation of Revenue [Line Items]
Net sales	30	26	55	43
South America
Disaggregation of Revenue [Line Items]
Net sales	70	74	137	126
Intersegment
Disaggregation of Revenue [Line Items]
Net sales	1	0	2	1
Value-add [Member]
Disaggregation of Revenue [Line Items]
Net sales	810	712	1,611	1,298
Value-add [Member] | Siding [Member]
Disaggregation of Revenue [Line Items]
Net sales	356	288	686	570
Value-add [Member] | OSB [Member]
Disaggregation of Revenue [Line Items]
Net sales	384	350	791	605
Value-add [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Value-add [Member] | South America
Disaggregation of Revenue [Line Items]
Net sales	70	74	135	124
Value-add [Member] | Intersegment
Disaggregation of Revenue [Line Items]
Net sales	1	0	2	0
Value-add [Member] | SmartSide siding [Member]
Disaggregation of Revenue [Line Items]
Net sales	362	298	698	589
Value-add [Member] | SmartSide siding [Member] | Siding [Member]
Disaggregation of Revenue [Line Items]
Net sales	356	288	686	570
Value-add [Member] | SmartSide siding [Member] | OSB [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Value-add [Member] | SmartSide siding [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Value-add [Member] | SmartSide siding [Member] | South America
Disaggregation of Revenue [Line Items]
Net sales	6	10	12	20
Value-add [Member] | SmartSide siding [Member] | Intersegment
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Value-add [Member] | OSB -Structural Solutions [Member]
Disaggregation of Revenue [Line Items]
Net sales	448	414	913	709
Value-add [Member] | OSB -Structural Solutions [Member] | Siding [Member]
Disaggregation of Revenue [Line Items]
Net sales		0	0
Value-add [Member] | OSB -Structural Solutions [Member] | OSB [Member]
Disaggregation of Revenue [Line Items]
Net sales	384	350	791	605
Value-add [Member] | OSB -Structural Solutions [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Value-add [Member] | OSB -Structural Solutions [Member] | South America
Disaggregation of Revenue [Line Items]
Net sales	64	63	123	104
Value-add [Member] | OSB -Structural Solutions [Member] | Intersegment
Disaggregation of Revenue [Line Items]
Net sales	1	0	2	0
Value-add [Member] | LSL [Member] | Intersegment
Disaggregation of Revenue [Line Items]
Net sales	1
Commodity | OSB - commodity [Member]
Disaggregation of Revenue [Line Items]
Net sales	287	425	621	707
Commodity | OSB - commodity [Member] | Siding [Member]
Disaggregation of Revenue [Line Items]
Net sales		0	0	0
Commodity | OSB - commodity [Member] | OSB [Member]
Disaggregation of Revenue [Line Items]
Net sales	287	425	621	707
Commodity | OSB - commodity [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Commodity | OSB - commodity [Member] | South America
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Commodity | OSB - commodity [Member] | Intersegment
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Other Product Types | Other [Member]
Disaggregation of Revenue [Line Items]
Net sales	33	31	66	57
Other Product Types | Other [Member] | Siding [Member]
Disaggregation of Revenue [Line Items]
Net sales	1	3	3	6
Other Product Types | Other [Member] | OSB [Member]
Disaggregation of Revenue [Line Items]
Net sales	2	2	5	5
Other Product Types | Other [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Net sales	30	26	55	43
Other Product Types | Other [Member] | South America
Disaggregation of Revenue [Line Items]
Net sales	0	0	2	3
Other Product Types | Other [Member] | Intersegment
Disaggregation of Revenue [Line Items]
Net sales	$ 0	$ 0	$ 0	$ 1