The amount of benefit arising from a previously unrecognised tax loss, tax credit or temporary difference of a prior period that is used to reduce deferred tax expense. [Refer: Deferred tax expense (income); Temporary differences [member]; Unused tax losses [member]; Unused tax credits [member]]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 12
-IssueDate 2017-01-01
-Paragraph 80
-Subparagraph f
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2017-03-01&anchor=para_80_f&doctype=Standard
-URIDate 2017-03-09

Name:	ifrs-full_TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceDeferredTaxExpense
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Accounts Receivable - Additional Information (Detail) - MXN ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Brazil [member]
Disclosure of Trade and Other Receivables [Line Items]
Tax benefit	$ 1,874
The Coca-Cola Company [member]
Disclosure of Trade and Other Receivables [Line Items]
Contributions due from related party	$ 4,023	$ 4,518	$ 3,749