XML 105 R69.htm IDEA: XBRL DOCUMENT
v3.19.1

Accounts Receivable from Subscribers, Distributors, Recoverable Taxes Contractual Assets and Other, Net - Summary of Aging of Accounts Receivable (Detail) - MXN ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Disclosure of accounts receivable [line items] |  |
Trade and other receivables | $ 231,908,792 | $ 203,562,725
Receivable from subscribers and distributors [member] | Cost [member] |  |
Disclosure of accounts receivable [line items] |  |
Trade and other receivables | 173,053,226 | 178,722,706
Receivable from subscribers and distributors [member] | 1 - 30 days [member] | Cost [member] |  |
Disclosure of accounts receivable [line items] |  |
Trade and other receivables | 46,816,302 | 46,758,825
Receivable from subscribers and distributors [member] | 31 - 60 days [member] | Cost [member] |  |
Disclosure of accounts receivable [line items] |  |
Trade and other receivables | 6,315,277 | 6,780,671
Receivable from subscribers and distributors [member] | 61 - 90 days [member] | Cost [member] |  |
Disclosure of accounts receivable [line items] |  |
Trade and other receivables | 4,168,952 | 4,375,188
Receivable from subscribers and distributors [member] | Greater than 90 days [member] | Cost [member] |  |
Disclosure of accounts receivable [line items] |  |
Trade and other receivables | 53,129,041 | 42,423,848
Unbilled services provided [member] | Receivable from subscribers and distributors [member] | Cost [member] |  |
Disclosure of accounts receivable [line items] |  |
Trade and other receivables | $ 62,623,654 | $ 78,384,174

X
- Definition Disclosure Of Accounts Receivable [line items] + References No definition available. + Details
Name: | amx_DisclosureOfAccountsReceivableLineItems
Namespace Prefix: | amx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of trade receivables and other receivables. [Refer: Trade receivables; Other receivables] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 54 -Subparagraph h -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_54_h&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 78 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_78_b&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_TradeAndOtherReceivables
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_ClassesOfAcquiredReceivablesAxis=amx_ReceivableFromSubscribersAndDistributorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=ifrs-full_GrossCarryingAmountMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=amx_LaterThanOneDayAndNotLaterThanThirtyDaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=amx_LaterThanThirtyOneDaysAndNotLaterThanSixtyDaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=amx_LaterThanSixtyOneDaysAndNotLaterThanNinetyDaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=amx_LaterThanNinetyDaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ProductsAndServicesAxis=amx_UnbilledServicesProvidedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |