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Income Taxes - Additional Information (Detail) R$ in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 MXN ($) | Dec. 31, 2023 BRL (R$) | Dec. 31, 2022 MXN ($) | Dec. 31, 2022 BRL (R$) | Dec. 31, 2021 MXN ($) | Dec. 31, 2021 BRL (R$) | Dec. 31, 2020 MXN ($) | Dec. 31, 2020 BRL (R$) | Nov. 23, 2021
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |  |  |  |
Effective income tax rate for foreign jurisdiction | 13.90% | 13.90% | 17.40% | 17.40% | 19.30% | 19.30% |  |  |
Percentage of share with voting right | 80.00% |  |  |  |  |  |  |  |
Accounting profit | $ 399,679 | R$ 114,539 | $ 1,163,081 | R$ 297,880 | $ 1,431,164 | R$ 380,373 | $ 1,721,453 | R$ 411,436 |
Adjustments For Deferred Tax Of Prior Periods |  |  | 2,647,919 | 703,761 |  |  |  |  |
Excess On Deferred Income Tax |  |  | 2,076,594 | 551,915 |  |  |  |  |
Excess On Current Income Tax |  |  | 571,325 | R$ 151,846 |  |  |  |  |
Deductible temporary differences for which no deferred tax asset is recognised | 167,222,681 |  | 187,830,823 |  |  |  |  |  |
Deferred Tax Liability Asset | (116,614,520) |  | (98,415,751) |  | $ (77,822,839) |  |  |  |
Discontinued operations [member] | Tracfone Wireless Inc Tracfone [member] | Verizon Communications Inc [Member] |  |  |  |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |  |  |  |
Percentage of ownership interest in subsidiary sold |  |  |  |  | 100.00% |  |  |  | 100.00%
Tax Profit On Sale of Subsidiary |  |  |  |  | $ 93,968,555 |  |  |  |
Brazil [member] |  |  |  |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |  |  |  |
Net operating loss carryforwards | $ 74,392,065 |  |  |  |  |  |  |  |
Effective taxable income percentage carryforward | 30.00% | 30.00% |  |  |  |  |  |  |
Mexico [member] |  |  |  |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |  |  |  |
Accumulated tax loss | $ 25,515,213 |  |  |  |  |  |  |  |
Argentina [member] |  |  |  |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |  |  |  |
Effective taxable income percentage carryforward | 100.00% | 100.00% |  |  |  |  |  |  |
Accumulated tax loss | $ 10,750,889 |  |  |  |  |  |  |  |
Accumulated Tax Loss Expiration Term | 5 years | 5 years |  |  |  |  |  |  |
Bottom of range [member] |  |  |  |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |  |  |  |
Statutory tax rates | 10.00% | 10.00% |  |  |  |  |  |  |
Top of range [member] |  |  |  |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |  |  |  |
Statutory tax rates | 35.00% | 35.00% |  |  |  |  |  |  |
CUCA [member] |  |  |  |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |  |  |  |
Contributed capital account | $ 680,304,268 |  | 654,631,901 |  |  |  |  |  |
CUFIN [member] |  |  |  |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |  |  |  |
Contributed capital account | 568,085,361 |  | 533,076,863 |  |  |  |  |  |
Retained earnings [member] |  |  |  |  |  |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |  |  |  |  |  |
Deferred Tax Liability Asset | $ 308,551 |  | $ 902,508 |  |  |  |  |  |

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