Selected Segment Data (Details) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Sep. 30, 2022 USD ($) operatingSegment	Sep. 30, 2021 USD ($)
Segment Reporting Information [Line Items]
Net sales	$ 852			$ 1,018			$ 3,149	$ 3,080
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	226			365			1,093	1,182
Net loss attributed to noncontrolling interest	0			0			1	1
Net Income (Loss) Attributable to Parent	226	$ 384	$ 484	365	$ 498	$ 320	1,094	1,183
Provision for income taxes	44			111			284	350
Depreciation and amortization	32			28			96	85
Stock-based compensation expense	(2)			(5)			(15)	(10)
Other operating income (expense) exclusive of product discontinuance charges	(7)			(2)			(17)	(5)
Gain (Loss) on Extinguishment of Debt	0			0			0	11
Interest Expense	3			4			9	12
Investment income, net of adjustments	5			0
Other Nonoperating Income Expense, Net of Debt Extinguishment	1			(2)			(7)	(2)
Loss due to settlement	4			0			4	0
Adjusted EBITDA	200			480			1,289	1,600
Income from discontinued operations, net of income taxes	(97)			(33)			(196)	(47)
Income from continuing operations attributed to LP	129			332			$ 898	1,135
Number of Operating Segments | operatingSegment							3
Intersegment sales
Segment Reporting Information [Line Items]
Net sales	(1)			(1)			$ (2)	(2)
Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	650			691			2,262	1,991
Siding [Member]
Segment Reporting Information [Line Items]
Net sales	394			312			1,083	889
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest							1,093	1,182
Adjusted EBITDA	90			73			251	240
Siding [Member] | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	393			310			1,079	879
OSB [Member]
Segment Reporting Information [Line Items]
Net sales	388			600			1,805	1,917
Adjusted EBITDA	113			381			1,021	1,300
OSB [Member] | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	205			307			995	912
EWP [Member]
Segment Reporting Information [Line Items]
Net loss attributed to noncontrolling interest							1	1
Other [Member]
Segment Reporting Information [Line Items]
Net sales	17			30			72	73
Adjusted EBITDA	(7)			(3)			(19)	(11)
Income from continuing operations attributed to LP	129			332			898	1,135
Other [Member] | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	0			0			0	0
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	(11)			(8)			(29)	(22)
Intersegment
Segment Reporting Information [Line Items]
Net sales	1			(1)			2	2
Intersegment | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	0			0			2	0
South America
Segment Reporting Information [Line Items]
Net sales	53			76			190	203
Adjusted EBITDA	14			37			65	91
South America | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	$ 53			$ 75			$ 190	$ 200