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Financial assets at fair value through profit or loss and designated at fair value through profit or loss - Securities (Tables) | 12 Months Ended
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Dec. 31, 2019
Text Block [Abstract] |
Summary of Financial Assets at Fair Value Through Profit or Loss | a) Financial assets at fair value through profit or loss - Securities are presented in the following table:
|  | 12/31/2019 |  |  | 12/31/2018 |
|  | Cost |  |  | Adjustments to Fair Value (in Income) |  |  | Fair value |  |  | Cost |  |  | Adjustments to Fair Value (in Income) |  |  | Fair value |
Investment funds |  |  | 9,277 |  |  |  | (1,010 | ) |  |  | 8,267 |  |  |  | 5,253 |  |  |  | (927 | ) |  |  | 4,326 |
Brazilian government securities (1a) |  |  | 218,548 |  |  |  | 1,063 |  |  |  | 219,611 |  |  |  | 215,956 |  |  |  | 1,102 |  |  |  | 217,058 |
Government securities – abroad (1b) |  |  | 1,541 |  |  |  | (21 | ) |  |  | 1,520 |  |  |  | 2,070 |  |  |  | 9 |  |  |  | 2,079 |
Argentina |  |  | 349 |  |  |  | (31 | ) |  |  | 318 |  |  |  | 1,121 |  |  |  | 8 |  |  |  | 1,129 |
Chile |  |  | 487 |  |  |  | 1 |  |  |  | 488 |  |  |  | 301 |  |  |  | 1 |  |  |  | 302 |
Colombia |  |  | 399 |  |  |  | 10 |  |  |  | 409 |  |  |  | 207 |  |  |  | — |  |  |  | 207 |
United States |  |  | 141 |  |  |  | — |  |  |  | 141 |  |  |  | 117 |  |  |  | — |  |  |  | 117 |
Mexico |  |  | 57 |  |  |  | — |  |  |  | 57 |  |  |  | 120 |  |  |  | — |  |  |  | 120 |
Paraguay |  |  | 2 |  |  |  | — |  |  |  | 2 |  |  |  | 1 |  |  |  | — |  |  |  | 1 |
Peru |  |  | 8 |  |  |  | — |  |  |  | 8 |  |  |  | — |  |  |  | — |  |  |  | — |
Uruguay |  |  | 98 |  |  |  | (1 | ) |  |  | 97 |  |  |  | 84 |  |  |  | — |  |  |  | 84 |
Italy |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 115 |  |  |  | — |  |  |  | 115 |
Other |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4 |  |  |  | — |  |  |  | 4 |
Corporate debt securities (1C) |  |  | 51,744 |  |  |  | (1,102 | ) |  |  | 50,642 |  |  |  | 38,953 |  |  |  | (505 | ) |  |  | 38,448 |
Negotiable shares |  |  | 15,459 |  |  |  | (822 | ) |  |  | 14,637 |  |  |  | 9,778 |  |  |  | (332 | ) |  |  | 9,446 |
Bank deposit certificates |  |  | 792 |  |  |  | — |  |  |  | 792 |  |  |  | 969 |  |  |  | — |  |  |  | 969 |
Real estate receivables certificates |  |  | 1,414 |  |  |  | 30 |  |  |  | 1,444 |  |  |  | 1,391 |  |  |  | 20 |  |  |  | 1,411 |
Debentures |  |  | 12,958 |  |  |  | (303 | ) |  |  | 12,655 |  |  |  | 5,147 |  |  |  | (187 | ) |  |  | 4,960 |
Eurobonds and other |  |  | 2,178 |  |  |  | (5 | ) |  |  | 2,173 |  |  |  | 1,403 |  |  |  | (7 | ) |  |  | 1,396 |
Financial credit bills |  |  | 18,517 |  |  |  | (3 | ) |  |  | 18,514 |  |  |  | 19,724 |  |  |  | — |  |  |  | 19,724 |
Promissory notes |  |  | 313 |  |  |  | — |  |  |  | 313 |  |  |  | 435 |  |  |  | — |  |  |  | 435 |
Other |  |  | 113 |  |  |  | 1 |  |  |  | 114 |  |  |  | 106 |  |  |  | 1 |  |  |  | 107 |
Total |  |  | 281,110 |  |  |  | (1,070 | ) |  |  | 280,040 |  |  |  | 262,232 |  |  |  | (321 | ) |  |  | 261,911 |
(1) | Financial assets at fair value through profit or loss – Securities pledged as Guarantee of Funding of Financial Institutions and Customers were: a) R$ 28,759 (R$ 30,114 at 12/31/2018), b) R$ 329 (R$ 131 at 12/31/2018), c) R$ 104, totaling R$ 29,192 (R$ 30,245 at 12/31/2018).
Summary of Cost and Fair Value of Financial Assets Held for Trading by Maturity | The cost and fair value per maturity of Financial Assets at Fair Value Through Profit or Loss - Securities are as follows:
|  | 12/31/2019 |  |  | 12/31/2018 |
|  | Cost |  |  | Fair value |  |  | Cost |  |  | Fair value |
Current |  |  | 82,183 |  |  |  | 80,372 |  |  |  | 53,382 |  |  |  | 52,096 |
Non-stated maturity |  |  | 24,736 |  |  |  | 22,904 |  |  |  | 15,031 |  |  |  | 13,772 |
Up to one year |  |  | 57,447 |  |  |  | 57,468 |  |  |  | 38,351 |  |  |  | 38,324 |
Non-current |  |  | 198,927 |  |  |  | 199,668 |  |  |  | 208,850 |  |  |  | 209,815 |
From one to five years |  |  | 136,727 |  |  |  | 137,186 |  |  |  | 153,256 |  |  |  | 153,701 |
From five to ten years |  |  | 41,744 |  |  |  | 41,759 |  |  |  | 44,258 |  |  |  | 44,620 |
After ten years |  |  | 20,456 |  |  |  | 20,723 |  |  |  | 11,336 |  |  |  | 11,494 |
Total |  |  | 281,110 |  |  |  | 280,040 |  |  |  | 262,232 |  |  |  | 261,911 |
Summary of Financial Assets Designated at Fair Value Through Profit or Loss | b) Financial assets designated at fair value through profit or loss - Securities are presented in the following table:
|  | 12/31/2019 |
|  | Cost |  |  | Adjustments to Fair Value (in Income) |  |  | Fair value |
Brazilian external debt bonds |  |  | 1,016 |  |  |  | 19 |  |  |  | 1,035 |
Total |  |  | 1,016 |  |  |  | 19 |  |  |  | 1,035 |
|  | 12/31/2018 |
|  | Cost |  |  | Adjustments to Fair Value (in Income) |  |  | Fair value |
Brazilian external debt bonds |  |  | 1,232 |  |  |  | 37 |  |  |  | 1,269 |
Total |  |  | 1,232 |  |  |  | 37 |  |  |  | 1,269 |
Summary of Cost and Fair Value by Maturity of Financial Assets Designated as Fair Value Through Profit or Loss | The cost and fair value by maturity of financial assets designated as fair value through profit or loss - Securities were as follows:
|  | 12/31/2019 |  |  | 12/31/2018 |
|  | Cost |  |  | Fair value |  |  | Cost |  |  | Fair value |
Current |  |  | 592 |  |  |  | 609 |  |  |  | 765 |  |  |  | 799 |
Up to one year |  |  | 592 |  |  |  | 609 |  |  |  | 765 |  |  |  | 799 |
Non-current |  |  | 424 |  |  |  | 426 |  |  |  | 467 |  |  |  | 470 |
From one to five years |  |  | 424 |  |  |  | 426 |  |  |  | 467 |  |  |  | 470 |

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