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Trade Accounts Receivable, Net (Details) $ in Millions, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2020 MXN ($) | Dec. 31, 2019 MXN ($)
Disclosure of financial assets [line items] |  |  |
Loans to employees |  | $ 118 | $ 115
Others |  | 2,608 | 3,214
Trade accounts receivable, Net | $ 1,420 | $ 28,249 | 29,633
Expected credit loss percentage | 13.00% | 13.00% |
Cost [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Trade accounts receivables |  | $ 26,309 | 26,942
Accumulated impairment [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Trade accounts receivable, Net |  | (2,462) | (2,189)
The Coca-Cola Company [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Receivables from related parties |  | 509 | 802
Heineken Group |  |  |
Disclosure of financial assets [line items] |  |  |
Receivables from related parties |  | $ 1,167 | $ 749
Top of range [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Percentage of unrecoverable trade accounts receivables | 8.00% |  |

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