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Accounts Payable, Accrued Liabilities and Asset Retirement Obligations - Summary of Movements in Asset Retirement Obligations (Detail) - MXN ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Disclosure of asset retirement obligations [abstract] |  |  |  |
Beginning balance |  | $ 10,799,997 | $ 16,752,223 |
Business combination |  |  | 156,578 |
Spin off effects | [1] |  | (4,257,531) |
Effect of translation |  | (1,722,035) | (1,138,217) |
Increase of the year |  | 1,425,391 | 350,802 |
Applications payments |  | (175,163) | (201,523) |
Applications reversals |  | (210,262) | (862,335) | [2]
Ending balance |  | $ 10,117,928 | $ 10,799,997 |
[1] | See Note 12d.
[2] | Reversals includes the sale of Claro Panama and Claro Chile disposal. See Note 12b.

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- Definition Applications, payments of asset retirement obligations, non-current. + References No definition available. + Details
Name: | amx_ApplicationsPaymentsOfAssetRetirementObligationsNoncurrent
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Applications, reversals of asset retirement obligations, non-current. + References No definition available. + Details
Name: | amx_ApplicationsReversalsOfAssetRetirementObligationsNoncurrent
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

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- Definition Effect of exchange rate changes on asset retirement obligations, non-current. + References No definition available. + Details
Name: | amx_EffectOfExchangeRateChangesOnAssetRetirementObligationsNoncurrent
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Increase (decrease) in asset retirement obligations during period, non-current. + References No definition available. + Details
Name: | amx_IncreaseDecreaseInAssetRetirementObligationsDuringPeriodNoncurrent
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Movements in asset retirement obligation related to business combinations current. + References No definition available. + Details
Name: | amx_MovementsInAssetRetirementObligationRelatedToBusinessCombinationsCurrent
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Noncurrent asset retirement obligations. + References No definition available. + Details
Name: | amx_NoncurrentAssetRetirementObligations
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Spin off effect in asset retirement obligations during period. + References No definition available. + Details
Name: | amx_SpinOffEffectInAssetRetirementObligationsDuringPeriod
Namespace Prefix: | amx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration