Selected Segment Data (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($) operatingSegment	Mar. 31, 2022 USD ($)
Segment Reporting Information [Line Items]
Net sales	$ 584	$ 1,167
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	22	483
Net (income) loss attributed to noncontrolling interest	(1)	1
Net Income (Loss) Attributable to Parent	21	484
Provision for income taxes	1	124
Depreciation and amortization	28	32
Stock-based compensation expense	(4)	(6)
Other operating income (expense) exclusive of product discontinuance charges	5	1
Interest Expense	3	3
Investment income, net of adjustments	5	1
Other Nonoperating Income Expense, Net of Debt Extinguishment	(3)	(10)
Adjusted EBITDA	66	598
Income from discontinued operations, net of income taxes	0	(62)
Income from continuing operations attributed to LP	$ 21	422
Number of Operating Segments | operatingSegment	3
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement	$ 6	0
Intersegment sales
Segment Reporting Information [Line Items]
Net sales	0	(1)
Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	495	799
Siding [Member]
Segment Reporting Information [Line Items]
Net sales	331	332
Adjusted EBITDA	67	83
Siding [Member] | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	329	330
OSB [Member]
Segment Reporting Information [Line Items]
Net sales	189	744
Adjusted EBITDA	5	505
OSB [Member] | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	112	406
Other [Member]
Segment Reporting Information [Line Items]
Net sales	8	26
Adjusted EBITDA	(9)	(6)
Income from continuing operations attributed to LP	21	422
Other [Member] | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	0	0
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	(9)	(9)
Intersegment
Segment Reporting Information [Line Items]
Net sales	0	(1)
Intersegment | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	0	1
South America
Segment Reporting Information [Line Items]
Net sales	55	67
Adjusted EBITDA	12	25
South America | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	$ 54	$ 64