Income Taxes - Additional Information (Detail) € in Millions, $ in Millions	12 Months Ended
Dec. 31, 2024 MXN ($)	Dec. 31, 2023 MXN ($)	Oct. 31, 2021 EUR (€)
Major Components Of Tax Expense Income [line items]
Unrecognized deferred tax liabilities \| $	$ 4,200	$ 5,792
NOLs usage limit	30.00%
Income tax system threshold amount \| €			€ 750
Brazil
Major Components Of Tax Expense Income [line items]
Average federal production and federal sales tax	14.60%	14.60%

The aggregate amount of temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements, for which deferred tax liabilities have not been recognised as a result of satisfying both of the following conditions: (a) the parent, investor, joint venturer or joint operator is able to control the timing of the reversal of the temporary difference; and (b) it is probable that the temporary difference will not reverse in the foreseeable future. [Refer: Total for all associates [member]; Total for all subsidiaries [member]; Temporary differences [member]; Investments in subsidiaries reported in separate financial statements]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2024-01-01
-Paragraph 81
-Subparagraph f
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_f&doctype=Standard
-URIDate 2024-03-27

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