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Regulatory charges - Schedule of Research Development and Innovation (Parenthetical) (Details) - BRL (R$) R$ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Regulatory Charges
Research and development expense	R$ 6	R$ 2

X

- Definition

Disclosure Regulatory Charges Abstract

+ References

No definition available.

+ Details

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X

- Definition

The amount of expenditure directly attributable to research or development activities, recognised in profit or loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2023-01-01
-Paragraph 126
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2023-en-r&anchor=para_126&doctype=Standard
-URIDate 2023-03-23

+ Details

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Balance Type:	debit
Period Type:	duration