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v3.19.1

Investments in Associates and Joint Ventures - Summary of Main Investments (Detail) - BRL (R$) R$ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Jan. 01, 2017 | Dec. 31, 2015
Disclosure of investments in associates and joint ventures [Line Items] |  |  |  |  |
Equity in earnings | R$ 150,466 | R$ 144,356 | R$ 132,384 | R$ 132,384 | R$ 113,597
Other comprehensive income | (326) | 653 | (2,467) |  |
Total comprehensive results | 25,313 | 23,878 | 19,549 |  |
Investments in Subsidiaries Associates and Joint Ventures [Member] |  |  |  |  |
Disclosure of investments in associates and joint ventures [Line Items] |  |  |  |  |
Investment | 12,019 | 5,055 |  |  |
Equity in earnings | 747 | 550 | 528 |  |
Other comprehensive income |  | (102) |  |  |
Total comprehensive results | 747 | 448 |  |  |
Investments in Subsidiaries Associates and Joint Ventures [Member] | Associates [member] |  |  |  |  |
Disclosure of investments in associates and joint ventures [Line Items] |  |  |  |  |
Investment | 11,802 | 4,851 |  |  |
Equity in earnings | 798 | 578 | 557 |  |
Other comprehensive income |  | (102) |  |  |
Total comprehensive results | 798 | 476 |  |  |
Investments in Subsidiaries Associates and Joint Ventures [Member] | Joint ventures [member] |  |  |  |  |
Disclosure of investments in associates and joint ventures [Line Items] |  |  |  |  |
Investment | 217 | 204 |  |  |
Equity in earnings | (51) | (28) | R$ (29) |  |
Total comprehensive results | R$ (51) | R$ (28) |  |  |

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