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Inventories, net - Additional Information (Detail) - MXN ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of inventories [abstract]
Cost of inventories recognized in cost of sales	$ 115,022,007	$ 117,613,669	$ 111,186,855

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 2022-03-24
-Paragraph 36
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=2&code=ifrs-tx-2022-en-r&anchor=para_36_d&doctype=Standard
-URIDate 2022-03-24

+ Details

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