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Share-based payments (Tables) | 12 Months Ended
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Dec. 31, 2021
Statement [LineItems] |
Summary of Weighted Average Fair Value of Options and Assumptions | The weighted average fair value of the options and assumptions used in applying the AB InBev option pricing model for the 2020 grants of awards described above are as follows. No stock options were granted in 2021.
Amounts in US dollar unless otherwise indicated |  | 2020 |  |  | 2019 |
Fair value of options granted |  |  | 7.54 |  |  |  | 11.79 |
Share price |  |  | 46.35 |  |  |  | 78.46 |
Exercise price |  |  | 46.35 |  |  |  | 78.46 |
Expected volatility |  |  | 25 | % |  |  | 23 | %
Expected dividends |  |  | 3.00 | % |  |  | 3.00 | %
Risk-free interest rate |  |  | -0.32 | % |  |  | 0.43 | %
Summary of Number of Options Outstanding | The total number of outstanding AB InBev options developed as follows:
Million options |  | 2021 |  |  | 2020 |  |  | 2019 |
Options outstanding at 1 January |  |  | 113.3 |  |  |  | 88.7 |  |  |  | 92.6 |
Options issued during the year |  |  | — |  |  |  | 38.1 |  |  |  | 13.8 |
Options exercised during the year |  |  | (1.3 | ) |  |  | (3.9 | ) |  |  | (10.7 | )
Options forfeited during the year |  |  | (9.2 | ) |  |  | (9.0 | ) |  |  | (7.0 | )
Options outstanding at the end of December |  |  | 102.7 |  |  |  | 113.3 |  |  |  | 88.7 |
Summary of Weighted Average Exercise Price of Options | The weighted average exercise price of the AB InBev options is as follows:
Amounts in US dollar |  | 2021 |  |  | 2020 |  |  | 2019 |
Options outstanding at 1 January |  |  | 71.22 |  |  |  | 79.66 |  |  |  | 94.74 |
Granted during the year |  |  | — |  |  |  | 53.41 |  |  |  | 83.33 |
Exercised during the year |  |  | 46.30 |  |  |  | 29.92 |  |  |  | 29.27 |
Forfeited during the year |  |  | 89.56 |  |  |  | 117.82 |  |  |  | 108.44 |
Outstanding at the end of December |  |  | 64.77 |  |  |  | 71.22 |  |  |  | 79.66 |
Exercisable at the end of December |  |  | 98.27 |  |  |  | 99.54 |  |  |  | 65.33 |
AB inBev [member] | Restricted Stock Units [member] |
Statement [LineItems] |
Summary of Number of Outstanding Deferred and Restricted stock Units | The total number of outstanding AB InBev restricted stock units developed as follows:
Million restricted stock units |  | 2021 |  |  | 2020 |  |  | 2019 |
Restricted stock units outstanding at 1 January |  |  | 19.1 |  |  |  | 9.9 |  |  |  | 6.0 |
Restricted stock units issued during the year |  |  | 3.9 |  |  |  | 10.9 |  |  |  | 5.5 |
Restricted stock units vested during the year |  |  | (1.1 | ) |  |  | (0.7 | ) |  |  | (1.0 | )
Restricted stock units forfeited during the year |  |  | (1.1 | ) |  |  | (0.9 | ) |  |  | (0.7 | )
Restricted stock units outstanding at the end of December |  |  | 20.9 |  |  |  | 19.1 |  |  |  | 9.9 |
Ambev [member] |
Statement [LineItems] |
Summary of Weighted Average Fair Value of Options and Assumptions | The weighted average fair value of the options and assumptions used in applying the option pricing model for the 2020 grants of awards described above are as follows. No stock options were granted in 2021.
Amounts in US dollar unless otherwise indicated 1 |  | 2020 |  |  | 2019 |
Fair value of options granted |  |  | 0.78 |  |  |  | 1.12 |
Share price |  |  | 3.47 |  |  |  | 4.38 |
Exercise price |  |  | 3.47 |  |  |  | 4.38 |
Expected volatility |  |  | 22 | % |  |  | 24 | %
Expected dividends |  |  | 0.00% - 5.00 | % |  |  | 0.00% - 5.00 | %
Risk-free interest rate |  |  | 6.80 | % |  |  | 7.80 | %
Summary of Number of Options Outstanding | The total number of outstanding Ambev options dev e loped as follows:
Million options |  | 2021 |  |  | 2020 |  |  | 2019 |
Options outstanding at 1 January |  |  | 127.3 |  |  |  | 141.8 |  |  |  | 141.3 |
Options issued during the year |  |  | — |  |  |  | — |  |  |  | 24.6 |
Options exercised during the year |  |  | (5.2 | ) |  |  | (5.7 | ) |  |  | (7.8 | )
Options forfeited during the year |  |  | (8.3 | ) |  |  | (8.8 | ) |  |  | (16.3 | )
Options outstanding at the end of December |  |  | 113.8 |  |  |  | 127.3 |  |  |  | 141.8 |
Summary of Weighted Average Exercise Price of Options | The weighted average exercise price of the Ambev options is as follows:
Amounts in US dollar 1 |  | 2021 |  |  | 2020 |  |  | 2019 |
Options outstanding at 1 January |  |  | 3.81 |  |  |  | 4.60 |  |  |  | 4.17 |
Granted during the year |  |  | — |  |  |  | 3.47 |  |  |  | 4.48 |
Exercised during the year |  |  | 2.36 |  |  |  | 1.60 |  |  |  | 2.25 |
Forfeited during the year |  |  | 4.53 |  |  |  | 4.42 |  |  |  | 5.27 |
Outstanding at the end of December |  |  | 3.57 |  |  |  | 3.81 |  |  |  | 4.60 |
Exercisable at the end of December |  |  | 3.79 |  |  |  | 4.56 |  |  |  | 4.74 |
Ambev [member] | Restricted Stock Units [member] |
Statement [LineItems] |
Summary of Number of Outstanding Deferred and Restricted stock Units | The total number of outstanding Ambev deferred and restricted stock units developed as follows:
Million restricted stock units |  | 2021 |  |  | 2020 |  |  | 2019 |
Restricted stock units outstanding at 1 January |  |  | 49.6 |  |  |  | 31.7 |  |  |  | 25.0 |
Restricted stock units issued during the year |  |  | 20.7 |  |  |  | 21.3 |  |  |  | 12.0 |
Restricted stock units vested during the year |  |  | (5.0 | ) |  |  | (1.9 | ) |  |  | (4.2 | )
Restricted stock units forfeited during the year |  |  | (1.5 | ) |  |  | (1.5 | ) |  |  | (1.1 | )
Restricted stock units outstanding at the end of December |  |  | 63.8 |  |  |  | 49.6 |  |  |  | 31.7 |

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