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Inventories, net - Additional Information (Detail) - MXN ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of inventories [abstract] |  |  |
Cost of inventories recognized in cost of sales | $ 111,863,425 | $ 115,022,007 | $ 117,613,669

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- Definition Disclosure of inventories + References No definition available. + Details
Name: | amx_DisclosureOfInventoriesAbstract
Namespace Prefix: | amx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of inventories recognised as an expense during the period. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2023-01-01 -Paragraph 36 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=2&code=ifrs-tx-2023-en-r&anchor=para_36_d&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration