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Document and Entity Information
 12 Months Ended
Dec. 31, 2024
shares
Document and Entity Information  
Document Type 20-F
Document Annual Report true
Entity Registrant Name Suzano S.A.
Document Registration Statement false
Current Fiscal Year End Date --12-31
Document Period End Date Dec. 31, 2024
Document Transition Report false
Document Shell Company Report false
Entity File Number 001-38755
Entity Incorporation, State or Country Code D5
Entity Address, Address Line One Av. Professor Magalhães Neto, 1,752 10th Floor, Rooms 1009, 1010 and 1011
Entity Address, City or Town Salvador
Entity Address, Country BR
Entity Address, Postal Zip Code 41810-012
Entity Common Stock, Shares Outstanding 1,264,117,615
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 Emerging Growth Company false
Document Financial Statement Error Correction [Flag] false
ICFR Auditor Attestation Flag true
Document Accounting Standard International Financial Reporting Standards
Entity Shell Company false
Entity Central Index Key 0000909327
Document Fiscal Year Focus 2024
Document Fiscal Period Focus FY
Amendment Flag false
Auditor Firm ID 1351
Auditor Name PricewaterhouseCoopers Auditores Independentes Ltda.
Auditor Location São Paulo, Brazil
Business Contact [Member]  
Document and Entity Information  
Entity Address, Address Line One Av. Brigadeiro Faria Lima, 1,355 - 7th Floor
Entity Address, City or Town São Paulo
Entity Address, Country BR
Entity Address, Postal Zip Code 01452-919
Contact Personnel Name Marcos Moreno Chagas Assumpção
Country Region +55
City Area Code 11
Local Phone Number 3503-9330
Contact Personnel Email Address ri@suzano.com.br
Ordinary shares  
Document and Entity Information  
Title of 12(b) Security Our common shares without par value*
No Trading Symbol Flag true
Security Exchange Name NYSE
ADR [Member]  
Document and Entity Information  
Title of 12(b) Security American Depositary Shares, or ADSs,** each representing one of our common shares
Trading Symbol SUZB3/SUZ
Security Exchange Name NYSE
Notes 4.000% due 2025, issued by Fibria Overseas Finance Ltd.  
Document and Entity Information  
Title of 12(b) Security 4.000% Notes due 2025, issued by Suzano International Finance B.V. (successor to Fibria Overseas Finance Ltd.)
Trading Symbol FBR/25
Security Exchange Name NYSE
Notes 5.500% due 2027, issued by Fibria Overseas Finance Ltd.  
Document and Entity Information  
Title of 12(b) Security 5.500% Notes due 2027, issued by Suzano International Finance B.V. (successor to Fibria Overseas Finance Ltd.)
Trading Symbol FBR/27
Security Exchange Name NYSE
Notes 6.000% due 2029, issued by Suzano Austria GmbH  
Document and Entity Information  
Title of 12(b) Security 6.000% Notes due 2029, issued by Suzano Austria GmbH
Trading Symbol SUZ/29
Security Exchange Name NYSE
Notes 5.000% due 2030, issued by Suzano Austria GmbH  
Document and Entity Information  
Title of 12(b) Security 5.000% Notes due 2030, issued by Suzano Austria GmbH
Trading Symbol SUZ/30
Security Exchange Name NYSE
Notes 3.750% due 2031, issued by Suzano Austria GmbH  
Document and Entity Information  
Title of 12(b) Security 3.750% Notes due 2031, issued by Suzano Austria GmbH
Trading Symbol SUZ/31
Security Exchange Name NYSE
Notes 2.500% due 2028, issued by Suzano Austria GmbH  
Document and Entity Information  
Title of 12(b) Security 2.500% Notes due 2028, issued by Suzano Austria GmbH
Trading Symbol SUZ/28
Security Exchange Name NYSE
Notes 3.125% due 2032, issued by Suzano Austria GmbH  
Document and Entity Information  
Title of 12(b) Security 3.125% Notes due 2032, issued by Suzano Austria GmbH
Trading Symbol SUZ/32
Security Exchange Name NYSE