XML 157 R124.htm IDEA: XBRL DOCUMENT
v3.25.1

Employee Benefits, Defined Benefit Obligation (DBO), Plan Assets for Pension and Other Benefit Obligation Plans (Details) - MXN ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | $ 157,866,603 | $ 134,420,606 | $ 128,400,391 | $ 131,410,989
Reportable Segments [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 157,573,696 | 134,188,504 |  |
Reportable Segments [Member] | Mexico [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 143,699,214 | 118,286,212 |  |
Reportable Segments [Member] | Puerto Rico [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 6,954,741 | 7,227,422 |  |
Reportable Segments [Member] | Brazil [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 3,540,352 | 5,290,237 |  |
Reportable Segments [Member] | Europe [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 3,379,389 | 3,384,633 |  |
DBO [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 343,421,367 | 334,458,153 | 330,862,941 | 345,315,712
DBO [Member] | Reportable Segments [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 343,128,460 | 334,226,051 |  |
DBO [Member] | Reportable Segments [Member] | Mexico [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 303,027,238 | 293,551,400 |  |
DBO [Member] | Reportable Segments [Member] | Puerto Rico [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 24,608,173 | 22,244,771 |  |
DBO [Member] | Reportable Segments [Member] | Brazil [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 12,113,660 | 15,045,247 |  |
DBO [Member] | Reportable Segments [Member] | Europe [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 3,379,389 | 3,384,633 |  |
Plan Assets [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | (190,035,808) | (204,092,587) | (208,526,619) | (218,327,182)
Plan Assets [Member] | Reportable Segments [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | (190,035,808) | (204,092,587) |  |
Plan Assets [Member] | Reportable Segments [Member] | Mexico [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | (159,328,024) | (175,265,188) |  |
Plan Assets [Member] | Reportable Segments [Member] | Puerto Rico [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | (17,653,432) | (15,017,349) |  |
Plan Assets [Member] | Reportable Segments [Member] | Brazil [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | (13,054,352) | (13,810,050) |  |
Plan Assets [Member] | Reportable Segments [Member] | Europe [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 0 | 0 |  |
Effect of Asset Ceiling [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 4,481,044 | 4,055,040 | $ 6,064,069 | $ 4,422,459
Effect of Asset Ceiling [Member] | Reportable Segments [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 4,481,044 | 4,055,040 |  |
Effect of Asset Ceiling [Member] | Reportable Segments [Member] | Mexico [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 0 | 0 |  |
Effect of Asset Ceiling [Member] | Reportable Segments [Member] | Puerto Rico [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 0 | 0 |  |
Effect of Asset Ceiling [Member] | Reportable Segments [Member] | Brazil [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | 4,481,044 | 4,055,040 |  |
Effect of Asset Ceiling [Member] | Reportable Segments [Member] | Europe [Member] |  |  |  |
Defined Benefit Obligation, Plan Assets for Pension and Other Benefit Plans [Abstract] |  |  |  |
Defined benefit obligation and plan assets | $ 0 | $ 0 |  |

X
- References No definition available. + Details
Name: | amx_DefinedBenefitObligationAndPlanAssetsForPensionAndOtherBenefitPlansAbstract
Namespace Prefix: | amx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 140 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_140_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_LiabilityAssetOfDefinedBenefitPlans
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_SegmentsAxis=ifrs-full_ReportableSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_MX
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_PR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_BR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=srt_EuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_NetDefinedBenefitLiabilityAssetAxis=ifrs-full_PresentValueOfDefinedBenefitObligationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_NetDefinedBenefitLiabilityAssetAxis=ifrs-full_PlanAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_NetDefinedBenefitLiabilityAssetAxis=ifrs-full_EffectOfAssetCeilingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |