Trade Receivable, Net - Additional Information (Detail) $ in Millions	12 Months Ended
Dec. 31, 2020 MXN ($) customer	Dec. 31, 2019 MXN ($)	Dec. 31, 2018 MXN ($)
Disclosure of Trade and Other Receivables [Line Items]
Percentage of unrecoverable trade receivables	2.50%
Number of customer related to expected loss \| customer	0
The Coca-Cola Company
Disclosure of Trade and Other Receivables [Line Items]
Contributions due from related party \| $	$ 1,482	$ 2,274	$ 3,542

The amounts receivable resulting from related party transactions. [Refer: Related parties [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 24
-IssueDate 2019-01-01
-Paragraph 20
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2019-en-r&anchor=para_20&doctype=Standard
-URIDate 2019-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 24
-IssueDate 2019-01-01
-Paragraph 18
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2019-en-r&anchor=para_18_b&doctype=Standard
-URIDate 2019-03-27

Name:	ifrs-full_AmountsReceivableRelatedPartyTransactions
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant