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Investments in associates and joint ventures (Details Text) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Apr. 30, 2016
Investments In Associates And Joint Ventures Details Text [Abstract]
Brazilian company, services provider related to credit and debit cards and other means of payment - The Organization received of dividends and interest on capital of this investment	R$ 582,483
In financial statements, Cielo S.A. - Other comprehensive income	8,814
Consolidated after acquisition the company			50.00%
Impairment losses were recognized in associates and joint control companies	31,868	R$ 37,122
Brazilian company, holding company that consolidates joint business related to electronic means of payment - The Organization received of dividends from this investment	46,820
Financial statements, Elo Participações S.A. - Other comprehensive income	8,109
Fair value of investments in associates for which there are quoted market prices	R$ 22,340,660	R$ 18,980,026

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- Definition

Brazilian company, holding company that consolidates joint business related to electronic means of payment - The Organization received of dividends from this investment

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No definition available.

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Brazilian company, services provider related to credit and debit cards and other means of payment - The Organization received of dividends and interest on capital of this investment

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No definition available.

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Consolidated after acquisition

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Financial statements, Elo Participações S.A. - Other comprehensive income

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Impairment losses were recognized in associates and joint control companies

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In financial statements, Cielo S.A. - Other comprehensive income

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Investments in associates and joint ventures (Details Text)

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The fair value of investments in associates if there are quoted market prices for the investment. [Refer: Associates [member]; Investments in associates]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2017-01-01
-Paragraph 21
-Subparagraph b
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_21_b_iii&doctype=Standard
-URIDate 2017-03-09

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