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Other Income and Expenses - Summary of Other Income and Expenses (Details) $ in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2023 USD ($) | Dec. 31, 2023 MXN ($) | Dec. 31, 2022 MXN ($) | Dec. 31, 2021 MXN ($)
Disclosure of Other Operating Income Expense [Line Items] |  |  |  |  |
Gain on sale of other assets |  |  | $ 473 | $ 0 | $ 968
Gain on sale of long-lived assets |  |  | 400 | 301 | 176
Sale of waste material |  |  | 0 | 2 | 13
Insurance rebates |  |  | 279 | 64 | 32
Foreign exchange gain |  |  | 815 | 124 | 0
Other investment in shares | $ 196 | [1] | 3,311 | 0 | 0
Recoveries of prior years |  |  | 483 | 354 | 809
Investments In Equity Instruments |  |  | 6,785 | 113 | 3,245
Other investments |  |  | 415 | 0 | 0
Others |  |  | 141 | 93 | 323
Other income | 775 | [2] | 13,102 | 1,051 | 5,566
Recoveries of prior years |  |  | 958 | 9 | 41
Impairment of long-lived assets | $ 74 | [1] | 1,248 | 833 | 1,427
Disposal of long-lived assets |  |  | 466 | 389 | 534
Contingencies, net |  |  | 1,110 | 456 | 244
Severance payments |  |  | 998 | 224 | 357
Donations |  |  | 711 | 512 | 425
Legal fees and other expenses from past acquisitions |  |  | 0 | 210 | 112
Foreign exchange loss |  |  | 0 | 0 | 84
Items without tax requirements |  |  | 139 | 96 | 167
Interest and penalties of previous years taxes |  |  | 385 | 0 | 0
Other |  |  | 237 | 167 | 334
Other expenses |  |  | 6,252 | 2,896 | 3,725
Ecuador |  |  |  |  |
Disclosure of Other Operating Income Expense [Line Items] |  |  |  |  |
Impairment of long-lived assets |  |  | 596 | $ 770 |
Mexico |  |  |  |  |
Disclosure of Other Operating Income Expense [Line Items] |  |  |  |  |
Impairment of long-lived assets |  |  | 480 |  |
Alimentos de Soja S.A.U. |  |  |  |  |
Disclosure of Other Operating Income Expense [Line Items] |  |  |  |  |
Impairment of long-lived assets |  |  | $ 143 |  |
TROP Frutas do Brasil S.A. ("TROP") [Member] |  |  |  |  |
Disclosure of Other Operating Income Expense [Line Items] |  |  |  |  |
Impairment of long-lived assets |  |  |  |  | $ 256
[1] | Convenience translation to U.S. dollars ($) – See Note 2.2.3
[2] | Convenience translation to U.S. dollars ($) – See Note 2.2.3

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