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Note 17 - Deferred Income Tax and Social Contribution - Applied Rates (Details)	12 Months Ended
	Dec. 31, 2018
Central America and the Caribbean [member] | Bottom of range [member]
Statement Line Items [Line Items]
Applied rates	23.00%
Central America and the Caribbean [member] | Top of range [member]
Statement Line Items [Line Items]
Applied rates	31.00%
Latin America [Member] | Bottom of range [member]
Statement Line Items [Line Items]
Applied rates	14.00%
Latin America [Member] | Top of range [member]
Statement Line Items [Line Items]
Applied rates	30.00%
CANADA
Statement Line Items [Line Items]
Applied rates	26.00%

X

- References

No definition available.

+ Details

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X

- Definition

The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from tax losses and social contributions.

+ References

No definition available.

+ Details

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- Details

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Namespace Prefix:
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X

- Details

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X

- Details

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X

- Details

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Namespace Prefix:
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X

- Details

Name:	srt_StatementGeographicalAxis=country_CA
Namespace Prefix:
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