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Securities Sold Under Repurchase Agreements and Interbank and Institutional Market Funds - Summary of Breakdown of Funds Obtained in Institutional Markets (Parenthetical) (Detail) - BRL (R$) R$ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Repurchase Agreements [Line Items]
Institutional market debt	R$ 104,244	R$ 93,974
Raisings through structured operations certificates [member]
Disclosure Of Repurchase Agreements [Line Items]
Institutional market debt	1,110	2,798
Market value of fund	1,204	2,902
Reference Equity [Member]
Disclosure Of Repurchase Agreements [Line Items]
Institutional market debt	R$ 36,627	R$ 35,205

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- Definition

The amount of instruments issued by the entity that represent indebtedness.

+ References

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Fair Value Debt Securities.

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