Contingencies - Summary of Ab Inbev's Material Tax Proceedings Related to Ambev and Its Subsidiaries (Detail) - Ambev [member] - Legal proceedings contingent liability [member] - USD ($) $ in Millions |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
|
| Disclosure of detailed information about material tax [line items] | ||
| Income tax and social contribution | $ 15,068 | $ 13,122 |
| Value-added and excise taxes | 5,714 | 5,236 |
| Other taxes | 764 | 691 |
| Material tax net | $ 21,546 | $ 19,049 |