XML 116 R80.htm IDEA: XBRL DOCUMENT v3.19.1

Inventories, net - Additional Information (Details) (Detail) - MXN ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of inventories [abstract]
Cost of inventories recognized in cost of sales	$ 180,013,986	$ 170,154,336	$ 172,495,376

X

- Definition

Disclosure of inventories

+ References

No definition available.

+ Details

Name:	amx_DisclosureOfInventoriesAbstract
Namespace Prefix:	amx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of inventories recognised as an expense during the period. [Refer: Inventories]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 2
-IssueDate 2018-01-01
-Paragraph 36
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=2&date=2018-03-01&anchor=para_36_d&doctype=Standard
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration