XML 129 R93.htm IDEA: XBRL DOCUMENT v3.19.1

Business Combinations, Acquisitions, Sale and Non-controlling Interest - Summary of Selected Financial Data From Statements of Financial Position (Parenthetical) (Detail) $ in Thousands	Dec. 31, 2017 MXN ($)
Undated Subordinated Fixed Rate Bond [member]
Disclosure of detailed information about business combination [line items]
Undated subordinated fixed rate bond	$ 14,942,886

X

- Definition

The amount of bonds issued by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard
-URIDate 2018-03-16

+ Details

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

X

- Definition

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

+ References

No definition available.

+ Details

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

X

- Details

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