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v3.19.1

Consolidated Statements of Changes in Equity (Parenthetical) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Consolidated Statements of Changes in Equity |  |  |
Tax incentive, reduction of calculated income tax (as a percent) | 75.00% | 75.00% | 75.00%

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- References No definition available. + Details
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- Definition Percentage of reduction in calculated income tax, as a result of a tax incentive program. + References No definition available. + Details
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