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Segment Reporting - Additional Information (Detail) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2020 USD ($) Segments Region | Jun. 30, 2019 USD ($)
Disclosure of operating segments [line items] |  |  |
Number of business segment | Segments | 6 |  |
Number of reportable segments | Segments | 6 |  |
Number of geographical regions | Region | 5 |  |
Net revenue | $ 21,298 | $ 25,823 | [1]
United States [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Net revenue | 6,675 | 6,833 |
Brazil [Member] |  |  |
Disclosure of operating segments [line items] |  |  |
Net revenue | 2,641 | 3,516 |
Beer business [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Net revenue | 19,510 | 23,673 |
Non-beer business [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Net revenue | $ 1,807 | $ 2,150 |
[1] | The unaudited condensed consolidated interim income statement for the six-month period ended 30 June 2019 has been restated to reflect the classification of the Australian operations as discontinued operations.

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