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Income Taxes (Tax Returns) (Details) - 12 months ended Dec. 31, 2019 R$ in Millions, $ in Millions | USD ($) jurisdiction | BRL (R$) jurisdiction
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Income Tax Examination |  |
Number of jurisdictions with extensions beyond statute of limitations | 2 | 2
Maximum number of years agreed to extensions beyond the statute of limitations | 20 years | 20 years
Minimum |  |
Income Tax Examination |  |
Range of tax returns are subject to examination | 3 years | 3 years
Maximum |  |
Income Tax Examination |  |
Range of tax returns are subject to examination | 6 years | 6 years
Brazil |  |
Income Tax Examination |  |
Net adjustments of additional taxes, including interest and penalties | $ 168 | R$ 676

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