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PROVISION FOR JUDICIAL LIABILITIES - Possible losses, labor (Details) | Dec. 31, 2024 BRL (R$) item | Dec. 31, 2023 BRL (R$) item
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Labor |  |
PROVISION FOR JUDICIAL LIABILITIES |  |
Possible losses for which no provision was recorded | R$ | R$ 171,480,000 | R$ 194,883,000
Labor | Possible losses |  |
PROVISION FOR JUDICIAL LIABILITIES |  |
Number of lawsuits | item | 1,135 | 1,034
Possible losses for which no provision was recorded | R$ | R$ 171,480 | R$ 194,883
Labor | Possible losses and remote losses |  |
PROVISION FOR JUDICIAL LIABILITIES |  |
Number of lawsuits | item | 1,178 | 1,241
Civil, environment and real estate |  |
PROVISION FOR JUDICIAL LIABILITIES |  |
Possible losses for which no provision was recorded | R$ | R$ 5,065,714 |
Civil, environment and real estate | Possible losses |  |
PROVISION FOR JUDICIAL LIABILITIES |  |
Number of lawsuits | item | 201 | 219
Possible losses for which no provision was recorded | R$ |  | R$ 4,462,964
Civil, environment and real estate | Possible losses and remote losses |  |
PROVISION FOR JUDICIAL LIABILITIES |  |
Number of lawsuits | item | 97 | 76

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfOtherProvisionsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of lawsuits classified as probable. + References No definition available. + Details
Name: | suz_NumberOfLawsuits
Namespace Prefix: | suz_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition The amount of possible losses for which no provision for loss was recorded. + References No definition available. + Details
Name: | suz_PossibleLossesForWhichNoProvisionWasRecorded
Namespace Prefix: | suz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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