Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Estimated annual tax rate			27.00%	25.00%
Provision for income taxes	$ 9	$ 23	$ 54	$ 117
Effective Income Tax Rate Reconciliation, Percent	52.00%		26.00%	25.00%
Effective Income Tax Rate Reconciliation, Percent 1		20.00%
Income Tax Expense (Benefit), Discrete Items			$ (2)	$ 1

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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LOUISIANA-PACIFIC CORP 10-Q