Income tax and social contribution (Details 5) - BRL (R$) R$ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred Tax Liabilities [Abstract]
Timing differences of depreciation - finance leasing	R$ 283,232	R$ 381,119
Adjustment to market value of securities	1,215,588	213,404
Judicial deposit and others	4,508,775	2,673,285
Total	R$ 6,007,595	R$ 3,267,808

The amount of deferred tax liabilities net of deferred tax assets, when the absolute amount of deferred tax liabilities is greater than the absolute amount of deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 12
-IssueDate 2017-01-01
-Paragraph 81
-Subparagraph g
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2017-03-01&anchor=para_81_g_i&doctype=Standard
-URIDate 2017-03-09

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