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Document and Entity Information Document - USD ($)
 12 Months Ended
Dec. 31, 2023
Feb. 12, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Document Transition Report false    
Entity File Number 1-7107    
Entity Registrant Name LOUISIANA-PACIFIC CORPORATION    
Entity Central Index Key 0000060519    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 93-0609074    
Entity Address, Address Line One 1610 West End Ave.    
Entity Address, Address Line Two Suite 200    
Entity Address, City or Town Nashville    
Entity Address, State or Province TN    
Entity Address, Postal Zip Code 37203    
City Area Code (615)    
Local Phone Number 986 - 5600    
Title of 12(b) Security Common Stock, $1 par value    
Trading Symbol LPX    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 5,335,327,192
Entity Common Stock, Shares Outstanding   72,251,623  
Documents Incorporated by Reference
Certain portions of the registrant's Definitive Proxy Statement for its 2024 Annual Meeting of Stockholders (which is expected to be filed with the Securities and Exchange Commission within 120 days after the end of the registrant's 2023 fiscal year) are incorporated by reference into Part III of this annual report on Form 10-K.