Selected Segment Data (Details) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Jun. 30, 2023 USD ($) operatingSegment	Jun. 30, 2022 USD ($)
Segment Reporting Information [Line Items]
Net sales	$ 611		$ 1,130		$ 1,195	$ 2,297
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(21)		385		1	868
Net loss attributed to non-controlling interest	1		0		0	1
Net Income (Loss) Attributable to Parent	(20)	$ 21	384	$ 484	1	868
Provision for income taxes	21		116		22	240
Depreciation and amortization	29		32		57	64
Stock-based compensation expense	(3)		(6)		(7)	(13)
Other operating income (expense) exclusive of product discontinuance charges	17		(11)		22	(10)
Business exit charges	34		0		34	0
Interest Expense	3		3		6	6
Investment income, net of adjustments	2		2
Other Nonoperating Income Expense, Net of Debt Extinguishment	(8)		2		(11)	(8)
Loss due to settlement	0	$ 6	0		6	0
Adjusted EBITDA	93		491		159	1,089
Income from discontinued operations, net of income taxes	0		(37)		0	(99)
Income from continuing operations attributed to LP	(20)		348		$ 1	770
Number of Operating Segments | operatingSegment					3
Intersegment sales
Segment Reporting Information [Line Items]
Net sales	0		(1)		$ 0	(2)
Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	496		810		992	1,611
Siding [Member]
Segment Reporting Information [Line Items]
Net sales	320		358		651	689
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest					1	868
Adjusted EBITDA	59		78		126	160
Siding [Member] | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	318		356		647	686
OSB [Member]
Segment Reporting Information [Line Items]
Net sales	229		673		418	1,417
Adjusted EBITDA	37		403		42	908
OSB [Member] | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	127		384		239	791
EWP [Member]
Segment Reporting Information [Line Items]
Net loss attributed to non-controlling interest					0	1
Other [Member]
Segment Reporting Information [Line Items]
Net sales	9		30		17	55
Adjusted EBITDA	(6)		(7)		(14)	(13)
Income from continuing operations attributed to LP	(20)		348		1	770
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	(9)		(9)		(19)	(17)
Intersegment
Segment Reporting Information [Line Items]
Net sales	0		(1)		0	2
Intersegment | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	0		1		0	2
South America
Segment Reporting Information [Line Items]
Net sales	53		70		108	137
Adjusted EBITDA	13		26		24	51
South America | Value-add [Member]
Segment Reporting Information [Line Items]
Net sales	$ 52		$ 70		$ 106	$ 135