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12. FINANCIAL INSTRUMENTS (Details 16) R$ in Thousands	Dec. 31, 2017 BRL (R$)	Dec. 31, 2016 BRL (R$)	Dec. 31, 2015 BRL (R$)	Dec. 31, 2014 BRL (R$)
Financial Instruments Details 16
Shareholder's equity (equity)	R$ 8,288,229	R$ 7,384,521	R$ 7,091,288	R$ 5,734,975
Borrowings and Financing (Third-party capital)	R$ 29,510,844	R$ 30,441,018
Gross Debit/Shareholder's equity	3.56	4.12

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The amount of residual interest in the assets of the entity after deducting all its liabilities.

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