Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Net income (loss) attributed to LP	$ 160	$ 108	$ (20)	$ 21	$ 267	$ 1
Weighted average common shares outstanding - basic	72		72		72	72
Dilutive effect of employee stock plans (in shares)	0		0		0	0
Shares used for diluted earnings per share (in shares)	72		72		72	72
Net income per share, basic (in dollars per share)	$ 2.23		$ (0.28)		$ 3.72	$ 0.02
Net income per share, diluted (in dollars per share)	$ 2.23		$ (0.28)		$ 3.71	$ 0.02