Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ 348		$ 486		$ 769	$ 802
Net loss attributed to noncontrolling interest	0		0		1	1
Income from continuing operations attributed to LP	348		486		770	803
Income from discontinued operations, net of income taxes	37		11		99	14
Net Income (Loss) Attributable to Parent	$ 384	$ 484	$ 498	$ 320	$ 868	$ 818
Basic (in shares)	81		101		83	103
Dilutive effect of employee stock plans	0		1		1
Diluted (in shares)	81		102		84	104
Income per share continuing operations - basic (in dollars per share)	$ 4.30		$ 4.82		$ 9.25	$ 7.76
Income per share discontinued operations - basic (in dollars per share)	0.46		0.11		1.18	0.14
Net income per share - basic (in dollars per share)	4.76		4.93		10.43	7.90
Income per share continuing operations - diluted (in dollars per share)	4.28		4.79		9.19	7.71
Income per share discontinued operations - diluted (in dollars per share)	0.45		0.11		1.18	0.14
Net income per share - diluted (in dollars per share)	$ 4.73		$ 4.90		$ 10.36	$ 7.85