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5 Risk management (Details 8) - BRL (R$) R$ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Risk Management |  |  |  |
Total borrowings and financing (Note 17) | R$ 17,258,624 | R$ 13,244,709 | R$ 13,152,796 | R$ 12,100,966
Cash and cash equivalents (Note 7) | (396,401) | (2,253,210) | (3,029,191) | (2,283,047)
Financial investments (Note 8) | (3,411,146) | 0 |  |
Net debt | 13,451,077 | 10,991,499 |  |
Total equity | 22,793,704 | 21,635,783 | R$ 19,551,688 | R$ 17,513,009
Total capital (shareholders + providers of capital) | R$ 36,244,781 | R$ 32,627,282 |  |
Leverage ratio | 37.00% | 34.00% |  |

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