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Derivatives - Additional Information (Detail) - BRL (R$) R$ in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Government securities - abroad [member] |  |
Disclosure of Financial Assets [Line Items] |  |
Total value of margins pledged in guarantee | R$ 12,855 | R$ 18,284

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition Derivatives pledges as collateral. + References No definition available. + Details
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- Details
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Period Type: |