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Note 17 - Deferred Income Tax and Social Contribution - Net Change in Deferred Income Tax and Social Contribution (Details) - BRL (R$) R$ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement Line Items [Line Items]
Balance	R$ (61.5)	R$ 276.3
Full recognition of actuarial gains/(losses)	40.2	57.7
Investment hedge	(262.7)	(12.0)
Investment hedge - put option of a subsidiary interest	(31.8)	(364.6)
Cash flow hedge - gains/(losses)	(269.2)	536.2
Gains/losses on translation of other foreign operations	136.1	(578.2)
Recognized in other comprehensive income	(387.4)	(360.9)
Recognized in income statement	253.0	98.9	R$ (2,406.4)
Changes directly in balance sheet	146.0	(75.8)
Recognized in deferred tax	35.4	(21.6)
Anticipation federal amnesty		(54.2)
Recognized in other group of balance sheet	110.6
Balance	R$ (49.9)	R$ (61.5)	R$ 276.3

X

- Definition

The anticipated federal amnesty to affect deferred (expense) income.

+ References

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- Definition

The changes related to the deferred tax recognized in the other group in the balance sheet.

+ References

No definition available.

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- Definition

The direct changes to the amounts in the deferred tax and liabilities in the balance sheet.

+ References

No definition available.

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- Definition

The amount of income tax relating to amounts recognised in other comprehensive income in relation to hedges of investments regarding put options of a subsidiary interest in equity instruments that the entity has designated at fair value through other comprehensive income.

+ References

No definition available.

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- Definition

The total changes related to deferred income tax and social contributions affecting the balance sheet.

+ References

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- Definition

The amount of tax expense (income) relating to changes in deferred tax liabilities and deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities]

+ References

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- Definition

The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets]

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- Definition

The amount of income tax relating to amounts recognised in other comprehensive income in relation to cash flow hedges. [Refer: Cash flow hedges [member]; Other comprehensive income]

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- Definition

The amount of income tax relating to amounts recognised in other comprehensive income in relation to changes in a revaluation surplus. [Refer: Revaluation surplus; Other comprehensive income]

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- Definition

The amount of income tax relating to amounts recognised in other comprehensive income. [Refer: Other comprehensive income]

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- Definition

The amount of income tax relating to amounts recognised in other comprehensive income in relation to exchange differences on the translation of financial statements of foreign operations. [Refer: Other comprehensive income; Reserve of exchange differences on translation]

+ References

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- Definition

The amount of income tax relating to amounts recognised in other comprehensive income in relation to hedges of investments in equity instruments that the entity has designated at fair value through other comprehensive income. [Refer: Other comprehensive income; Reserve of gains and losses on hedging instruments that hedge investments in equity instruments]

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