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Risk and Capital Management - Summary of Funds Obtained Through the Issuance of Subordinated Debt Securities (Detail) | 12 Months Ended
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Dec. 31, 2019 BRL (R$)
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Account balance | R$ 36,627,000,000
Subordinated financial bills one [Member] |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Issue | 2012
Maturity | 2020
Brazil, Brazil Real |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Principal amount (original currency) | R$ 2,354,000,000
Account balance | R$ 5,089,000,000
Brazil, Brazil Real | Subordinated financial bills one [Member] |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Name of currency | BRL
Return p.a. | 111% of CDI
Principal amount (original currency) | R$ 1,000,000
Account balance | R$ 2,000,000
Brazil, Brazil Real | Subordinated financial bills two [Member] |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Name of currency | BRL
Issue | 2011
Maturity | 2021
Return p.a. | IPCA + 6% to 6.17%
Principal amount (original currency) | R$ 20,000,000
Account balance | R$ 49,000,000
Brazil, Brazil Real | Subordinated financial bills three [Member] |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Name of currency | BRL
Issue | 2012
Maturity | 2022
Return p.a. | 109.25% to 110.5% of CDI
Principal amount (original currency) | R$ 6,000,000
Account balance | R$ 14,000,000
Brazil, Brazil Real | Subordinated financial bills four [Member] |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Name of currency | BRL
Return p.a. | IPCA + 5.15% to 5.83%
Principal amount (original currency) | R$ 2,307,000,000
Account balance | R$ 4,994,000,000
Brazil, Brazil Real | Subordinated financial bills five [Member] |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Name of currency | BRL
Return p.a. | IGPM + 4.63%
Principal amount (original currency) | R$ 20,000,000
Account balance | 30,000,000
United States of America, Dollars |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Principal amount (original currency) | 7,721,000,000
Account balance | R$ 31,538,000,000
United States of America, Dollars | Subordinated euronotes [Member] |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Name of currency | USD
Issue | 2010
Maturity | 2020
Return p.a. | 6.20
Principal amount (original currency) | R$ 990,000,000
Account balance | R$ 4,041,000,000
United States of America, Dollars | Subordinated euronotes one [Member] |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Name of currency | USD
Issue | 2010
Maturity | 2021
Return p.a. | 5.75
Principal amount (original currency) | R$ 1,000,000,000
Account balance | R$ 4,152,000,000
United States of America, Dollars | Subordinated euronotes two [Member] |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Name of currency | USD
Issue | 2011
Maturity | 2021
Return p.a. | 5.75% to 6.20%
Principal amount (original currency) | R$ 730,000,000
Account balance | R$ 2,952,000,000
United States of America, Dollars | Subordinated euronotes three [Member] |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Name of currency | USD
Issue | 2012
Maturity | 2021
Return p.a. | 6.20
Principal amount (original currency) | R$ 550,000,000
Account balance | R$ 2,218,000,000
United States of America, Dollars | Subordinated euronotes four [Member] |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Name of currency | USD
Issue | 2012
Maturity | 2022
Return p.a. | 5.50% to 5.65%
Principal amount (original currency) | R$ 2,600,000,000
Account balance | R$ 10,673,000,000
United States of America, Dollars | Subordinated euronotes five [Member] |
Disclosure of assets and liabilities according to their remaining contractual maturities [Line Items] |
Name of currency | USD
Issue | 2012
Maturity | 2023
Return p.a. | 5.13
Principal amount (original currency) | R$ 1,851,000,000
Account balance | R$ 7,502,000,000

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