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Other Income and Expenses - Summary of other income and expenses (Detail) - MXN ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Other income:      
Gain on sale of long-lived assets $ 178 $ 324 $ 259
Cancellation of contingencies 1,079 641 745
Foreign exchange gain related to operating activities 339 105 0
Other 385 403 498
Other income 1,981 1,473 1,502
Other expenses:      
Provisions for contingencies 1,306 1,146 938
Loss on the retirement of long-lived assets 186 177 199
Loss on sale of long-lived assets 84 74 201
Loss on the retirement of intangible assets 1 0 3
Impairment on equity investments 143 0 250
Severance payments 202 224 233
Donations 345 302 258
Foreign exchange losses related to operating activities 0 0 61
Other 986 533 166
Other expenses, by nature $ 3,253 $ 2,456 $ 2,309