Borrowings month in which the amount may be called.

No definition available.

Name:	amx_BorrowingsMonthInWhichTheAmountMayBeCalled
Namespace Prefix:	amx_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of securities received.

+ References

No definition available.

+ Details

Name:	amx_PercentageOfSecuritiesReceived
Namespace Prefix:	amx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Tax withholding percentage.

+ References

No definition available.

+ Details

Name:	amx_TaxWithholdingPercentage
Namespace Prefix:	amx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_Borrowings
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The maturity of borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2022-03-24
-Paragraph 7
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_BorrowingsMaturity
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average of interest and other costs that an entity incurs in connection with the borrowing of funds applicable to the borrowings of the entity that are outstanding during the period, other than borrowings made specifically for the purpose of obtaining a qualifying asset. [Refer: Weighted average [member]; Borrowings]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 23
-IssueDate 2022-03-24
-Paragraph 26
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=23&code=ifrs-tx-2022-en-r&anchor=para_26_b&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_CapitalisationRateOfBorrowingCostsEligibleForCapitalisation
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of commercial paper issued by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_CommercialPapersIssued
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of loans received.

+ References

+ Details

Name:	ifrs-full_LoansReceived
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of notes and debentures issued by the entity.

+ References

+ Details

Name:	ifrs-full_NotesAndDebenturesIssued
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ References

+ Details

Name:	ifrs-full_NotionalAmount
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	amx_LongTermDebtTypeAxis=amx_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	amx_TrancheAxis=amx_Amx222Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	amx_TrancheAxis=amx_Amx22xMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	amx_TrancheAxis=amx_Amx22uxMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CurrencyAxis=currency_EUR
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfInterestRatesAxis=amx_HybridNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=amx_SyndicatedCreditFacilityOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=amx_SyndicatedCreditFacilityTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=amx_SyndicatedRevolvingCreditFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=amx_TelekomAustriaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=amx_SeriesOneHybridNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=amx_HybridNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=amx_LineOfCredit1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=amx_CommercialPaperMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	amx_BorrowingsByNameOneAxis=amx_CommercialPaperOneTwoThreeAndFourMaturingInTwoThousandAndTwentyThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=amx_LineOfCreditAndOthersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

Debt - Additional Information (Detail) $ in Thousands, € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022 MXN ($)	Dec. 31, 2021 MXN ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 EUR (€)	Nov. 28, 2022 MXN ($)	Aug. 31, 2020 EUR (€)
Disclosure of detailed information about borrowings [line items]
Weighted average cost of borrowed funds	5.38%	3.78%
Subtotal lines of credit and others	$ 510,589,480	$ 564,030,102
Borrowings month in which the amount may be called	2023-05
Senior Notes [Member]
Disclosure of detailed information about borrowings [line items]
Notional amount					$ 50,000,000
Senior Notes [Member] \| AMX 22-2 [Member]
Disclosure of detailed information about borrowings [line items]
Notes and debentures issued					24,002,000
Senior Notes [Member] \| AMX 22X [Member]
Disclosure of detailed information about borrowings [line items]
Notes and debentures issued					24,002,000
Senior Notes [Member] \| AMX 22UX [Member]
Disclosure of detailed information about borrowings [line items]
Notes and debentures issued					$ 24,002,000
Euros [member]
Disclosure of detailed information about borrowings [line items]
Subtotal lines of credit and others	$ 129,358,533	167,396,781
Hybrid Notes [member]
Disclosure of detailed information about borrowings [line items]
Subtotal lines of credit and others		12,882,081
Percentage of securities received	88.60%		88.60%	88.60%
Hybrid Notes [member] \| Euros [member]
Disclosure of detailed information about borrowings [line items]
Subtotal lines of credit and others		12,882,081
Revolving Syndicated Credit Facility One [member]
Disclosure of detailed information about borrowings [line items]
Loan amount			$ 1,500
Borrowings, maturity	2026
Revolving Syndicated Credit Facility Two [member]
Disclosure of detailed information about borrowings [line items]
Loan amount			$ 2,500
Borrowings, maturity	2024
Syndicated revolving credit facilities [member] \| Telekom Austria [member] \| Euros [member]
Disclosure of detailed information about borrowings [line items]
Loan amount \| €				€ 1,000
Series One Hybrid Notes [member]
Disclosure of detailed information about borrowings [line items]
Loan amount \| €				€ 550
Hybrid Notes [member]
Disclosure of detailed information about borrowings [line items]
Borrowings, maturity	2073
Lines of credit [member]
Disclosure of detailed information about borrowings [line items]
Subtotal lines of credit and others	$ 17,076,000	$ 84,856,000
Lines of credit [member] \| Euros [member]
Disclosure of detailed information about borrowings [line items]
Borrowings, maturity		2022
Subtotal lines of credit and others	17,052,458	$ 18,737,572
Commercial Paper [member] \| Commercial Paper One Two Three And Four Maturing In Two Thousand And Twenty Three [Member]
Disclosure of detailed information about borrowings [line items]
Commercial papers issued	2,598,000					€ 2,000
Line of credit and others [member]
Disclosure of detailed information about borrowings [line items]
Subtotal lines of credit and others	$ 71,560,463	$ 84,904,014
Mexico [member]
Disclosure of detailed information about borrowings [line items]
Commissions or the reimbursements for Mexican tax withholdings	4.90%