Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ 129			$ 332			$ 898	$ 1,134
Net loss attributed to noncontrolling interest	0			0			1	1
Income from continuing operations attributed to LP	129			332			898	1,135
Income from discontinued operations, net of income taxes	97			33			196	47
Net Income (Loss) Attributable to Parent	$ 226	$ 384	$ 484	$ 365	$ 498	$ 320	$ 1,094	$ 1,183
Basic (in shares)	74			94			80	100
Dilutive effect of employee stock plans	0			0			1	1
Diluted (in shares)	74			94			80	101
Income per share continuing operations - basic (in dollars per share)	$ 1.75			$ 3.55			$ 11.23	$ 11.34
Income per share discontinued operations - basic (in dollars per share)	1.32			0.35			2.45	0.47
Net income per share - basic (in dollars per share)	3.07			3.90			13.67	11.81
Income per share continuing operations - diluted (in dollars per share)	1.74			3.52			11.16	11.26
Income per share discontinued operations - diluted (in dollars per share)	1.31			0.35			2.43	0.47
Net income per share - diluted (in dollars per share)	$ 3.05			$ 3.87			$ 13.59	$ 11.73