v3.25.1

Company's Operations - Cerrado Project (Details) - item	Dec. 31, 2025	Mar. 31, 2025
Company's Operations [Line Items]
Number of Industrial Units	16
Number of Technology Centers		7,000

X

- Definition

Company's Operations [Line Items]

+ References

No definition available.

+ Details

Name:	suz_CompanysOperationsLineItems
Namespace Prefix:	suz_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of industrial units.

+ References

No definition available.

+ Details

Name:	suz_NumberOfIndustrialUnits
Namespace Prefix:	suz_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of technology centers.

+ References

No definition available.

+ Details

Name:	suz_NumberOfTechnologyCenters
Namespace Prefix:	suz_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant