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Taxes, Income Tax and Social Contribution - Summary of Income Tax and Social Contribution Tax (Detail) - BRL (R$) R$ in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Disclosure of taxes, income tax and social contribution tax [abstract] |  |
Income tax | R$ 88 | R$ 19
Social contribution tax | 27 | 8
Total income and social contribution tax | R$ 115 | R$ 27

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- Definition The amount of current tax expense (income) and adjustments for the current tax of prior periods. [Refer: Current tax expense (income); Adjustments for current tax of prior periods] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 12 -IssueDate 2017-01-01 -Paragraph 80 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2017-03-01&anchor=para_80&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition Current payables on social security and taxes. + References No definition available. + Details
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- Definition Disclosure of taxes, income tax and social contribution tax [abstract]. + References No definition available. + Details
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- Definition Social contribution tax expense (income). + References No definition available. + Details
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