Business Combinations - Acquisition of Telefonica Brasil (Details) - Oi Group € in Millions, R$ in Millions	Apr. 20, 2022 BRL (R$)	Apr. 20, 2022 EUR (€)	Oct. 23, 2023 BRL (R$)	Apr. 20, 2022 EUR (€)
Disclosure of detailed information about business combination [line items]
Consideration	R$ 5,492		R$ 5,129	€ 1,093
Cash transferred, estimation	R$ 5,373	€ 1,063
Withdrawn amount, percentage			50.00%

The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B64
-Subparagraph f
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_f&doctype=Appendix&subtype=B
-URIDate 2023-03-23

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Period Type:	instant