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The amount of non-current provisions for employee benefits. [Refer: Provisions for employee benefits]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph B9
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_B9_e&doctype=Appendix&subtype=B
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 78
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_78_d&doctype=Standard
-URIDate 2025-03-27

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2025-01-01
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_45&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2025-01-01
-Paragraph 47
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2025-03-27

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The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement.

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The weighted average fair value at the measurement date of granted equity instruments other than share options. [Refer: Weighted average [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2025-01-01
-Paragraph 47
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2025-03-27

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Data Type:	xbrli:monetaryItemType
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Represents the decrease in the provision recognized for share-based payment transactions, specifically for cash-settled share-based compensation, such as phantom stock plans, due to exercised (settled) amounts.

No definition available.

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Represents the increase in the provision recognized for share-based payment transactions, specifically for cash-settled share-based compensation, such as phantom stock plans.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Restricted Stock, Year Five

No definition available.

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Balance Type:	na
Period Type:	duration

Restricted Stock, Year Four

No definition available.

Name:	suz_RestrictedStockYearFour
Namespace Prefix:	suz_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Stock including a provision that prohibits sale or substantive sale of an equity instrument for a specified period of time or until specified performance conditions are met.

No definition available.

Name:	suz_RestrictedStockYearOne
Namespace Prefix:	suz_
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Restricted Stock, Year Three

No definition available.

Name:	suz_RestrictedStockYearThree
Namespace Prefix:	suz_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Restricted Stock, Year Two

No definition available.

Name:	suz_RestrictedStockYearTwo
Namespace Prefix:	suz_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	suz_VestingAxis=suz_GrantYear2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	suz_VestingAxis=suz_GrantYear2024Member
Namespace Prefix:
Data Type:	na
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