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Note 21 - Changes in Equity (Details Textual) - BRL (R$) R$ in Millions |  |  |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 18, 2018 | Dec. 28, 2017 | [1] | Dec. 01, 2017 | Dec. 29, 2016 | Feb. 29, 2016 | [2] | Dec. 30, 2015 | Jun. 29, 2015 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Adjustments for share-based payments |  |  |  |  |  |  |  | R$ 209.3 | R$ 170.3 | R$ 197.1
Investment reserve limit percentage of net income |  |  |  |  |  |  |  | 60.00% | 60.00% | 60.00%
Statutory reserve limit percentage of net income |  |  |  |  |  |  |  | 5.00% | 5.00% | 5.00%
Statutory reserve limit of capital stock |  |  |  |  |  |  |  | 20.00% | 20.00% | 20.00%
Statutory reserve supplementation cutoff percentage related to capital stock |  |  |  |  |  |  |  | 30.00% | 30.00% | 30.00%
Dividends recognised as distributions to owners |  | R$ 4,869.7 |  | R$ 3,454.2 | R$ 2,039.2 | R$ 2,352.7 | R$ 1,570.6 | R$ 4,044.0 | R$ 6,007.3 | R$ 2,612.8
Other comprehensive income, net of tax, gains (losses) on revaluation |  |  |  |  |  |  |  | 124.6 | (129.6) | R$ (24.5)
Total financial liabilities |  |  |  |  |  |  |  | 22,036.6 | 24,423.9 |
Cervecería Nacional Dominicana S.A. [member] | E. León Jimenes S.A. [member] |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Percentage of ownership acquired through the partial exercise of a put option |  |  | 30.00% |  |  |  |  |  |  |
Cervecería Nacional Dominicana S.A. [member] | E. León Jimenes S.A. [member] | Partial exercise of put option for further ownership of subsidiary [member] |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in subsidiary | 85.00% |  |  |  |  |  |  |  |  |
Put options [member] | Cervecería Nacional Dominicana S.A. [member] | E. León Jimenes S.A. [member] |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Total financial liabilities |  |  |  |  |  |  |  | 5,520.2 | 4,878.5 |
Put options [member] | Sucos do Bem [member] |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Total financial liabilities |  |  |  |  |  |  |  | 132.0 | 127.7 |
Put options [member] | Tropical Juice [member] |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Total financial liabilities |  |  |  |  |  |  |  | 23.0 | R$ 23.4 |
Ambev Private Pension Institute of the defined benefits plan [member] |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Other comprehensive income, net of tax, gains (losses) on revaluation |  |  |  |  |  |  |  | R$ 158.5 |  |
Net income reserves, investment reserve [member] |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Dividend percentage of net income |  |  |  |  |  |  |  | 114.00% | 72.00% | 74.00%
Dividends recognised as distributions to owners |  |  |  |  |  |  |  | R$ 3,770.1 |  |
Top of range [member] | Country of domicile [member] |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |
Dividend percentage of net income |  |  |  |  |  |  |  | 40.00% | 40.00% | 40.00%
[1] | R$3,770.1 of these interest on shareholder's equity refer to the total amount approved for distribution in the period, and were accrued in investments reserves.
[2] | These dividends refer to the total amount approved for distribution in the period, and were accrued in investments reserves.

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