General information about financial statements (Details) - item	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
State of Sao Paulo \| Suzano Industrial
Company's Operations [Line Items]
Number of Industrial Units	2
Number of Industrial Units	16
Number of Technology Centers	7,000
%	100.00%	100.00%
Controlling Shareholders
Company's Operations [Line Items]
%	49.25%	46.97%

The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Total for all subsidiaries [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Number 27
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2024-01-01
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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