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v3.19.1

Risk and Capital Management - Summary of Off Balance Sheet (Detail) - BRL (R$) R$ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Disclosure of contractual maturities of assets and liabilities and off balance sheet commitments [line items] |  |
Financial guarantees | R$ 66,105 | R$ 70,489
Commitments to be released | 272,843 | 244,126
Letters of credit to be released | 10,747 | 9,214
Contractual commitments-Fixed assets and Intangible | 678 | 1,165
Total | 350,373 | 324,994
0-30 days [Member] |  |
Disclosure of contractual maturities of assets and liabilities and off balance sheet commitments [line items] |  |
Financial guarantees | 1,305 | 1,749
Commitments to be released | 110,909 | 98,310
Letters of credit to be released | 10,747 | 9,214
Total | 122,961 | 109,273
31 - 365 days [Member] |  |
Disclosure of contractual maturities of assets and liabilities and off balance sheet commitments [line items] |  |
Financial guarantees | 17,314 | 17,563
Commitments to be released | 25,977 | 27,857
Contractual commitments-Fixed assets and Intangible | 405 | 432
Total | 43,696 | 45,852
366 - 720 days [Member] |  |
Disclosure of contractual maturities of assets and liabilities and off balance sheet commitments [line items] |  |
Financial guarantees | 5,509 | 5,451
Commitments to be released | 5,796 | 7,307
Contractual commitments-Fixed assets and Intangible | 273 | 460
Total | 11,578 | 13,218
Over 720 days [Member] |  |
Disclosure of contractual maturities of assets and liabilities and off balance sheet commitments [line items] |  |
Financial guarantees | 41,977 | 45,726
Commitments to be released | 130,161 | 110,652
Contractual commitments-Fixed assets and Intangible |  | 273
Total | R$ 172,138 | R$ 156,651

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