Investments (Details) - Schedule of breakdown - BRL (R$) R$ in Millions	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021
Schedule Of Breakdown Abstract
Beginning balance	R$ 789	R$ 769
Ending balance	823	810
Share of profit of associates	R$ 34	R$ 41

The entity's share of the profit (loss) of associates and joint ventures accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method; Joint ventures [member]; Profit (loss)]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2022-03-24
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective on first application of IFRS 9
-Name IFRS
-Number 4
-IssueDate 2022-03-24
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Number 1
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Balance Type:	credit
Period Type:	duration