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Related Parties - Summary of Transactions with Related Parties (Detail) - MXN ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022
Disclosure of transactions between related parties [abstract] |  |
Construction services, purchases of materials, inventories and property, plant and equipment | $ 7,437,743 | $ 9,450,787
Insurance premiums, fees paid for administrative and operating services, brokerage services and others | 3,307,409 | 2,420,466
Associated costs for towers' sale | 1,584,080 |
Rent of towers | 804,171 | 312,726
Other services | 1,535,383 | 1,042,218
Investments and expenses | 14,668,786 | 13,226,197
Service revenues | 630,643 | 547,805
Sales of towers | 7,662,188 |
Sales of equipment | 1,118,923 | 598,162
Revenues | $ 9,411,754 | $ 1,145,967

X
- Definition Associated costs for towers sale related party transactions. + References No definition available. + Details
Name: | amx_AssociatedCostsForTowersSaleRelatedPartyTransactions
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Construction services purchases of materials inventories and property plant and equipment related party transactions. + References No definition available. + Details
Name: | amx_ConstructionServicesPurchasesOfMaterialsInventoriesAndPropertyPlantAndEquipmentRelatedPartyTransactions
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Insurance premiums fees paid for administrative and operating services brokerage services and others related party transactions. + References No definition available. + Details
Name: | amx_InsurancePremiumsFeesPaidForAdministrativeAndOperatingServicesBrokerageServicesAndOthersRelatedPartyTransactions
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Investments and expenses of related party transactions. + References No definition available. + Details
Name: | amx_InvestmentsAndExpensesOfRelatedPartyTransactions
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Other services related party transactions. + References No definition available. + Details
Name: | amx_OtherServicesRelatedPartyTransactions
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Related party transactions rental income from towers. + References No definition available. + Details
Name: | amx_RelatedPartyTransactionsRentalIncomeFromTowers
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Revenue from services, related party transactions. + References No definition available. + Details
Name: | amx_RevenueFromServicesRelatedPartyTransactions
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Sale of equipment of related party transactions. + References No definition available. + Details
Name: | amx_SaleOfEquipmentOfRelatedPartyTransactions
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Sale Of Towers Of Related Party Transactions. + References No definition available. + Details
Name: | amx_SaleOfTowersOfRelatedPartyTransactions
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of revenue arising from the rendering of services in related party transactions. [Refer: Revenue; Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 24 -IssueDate 2023-01-01 -Paragraph 21 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=24&code=ifrs-tx-2023-en-r&anchor=para_21_c&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration