XML 128 R106.htm IDEA: XBRL DOCUMENT v3.23.1

SHORT-TERM DEBT AND LONG-TERM DEBT - Additional disclosures (Details) - Dec. 31, 2022 R$ in Millions, $ in Millions	USD ($)	BRL (R$)
Global Credit Line
LOANS AND FINANCING
Maximum borrowing capacity	$ 875	R$ 4,565

X

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

No definition available.

+ Details

Name:	ggb_IfrsLineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	ggb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- 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_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ggb_GlobalCreditLineMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: