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Income Taxes - Summary of Breakdown of Changes in Consolidated Deferred Income Taxes (Parenthetical) (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2018 MXN ($)
Changes in deferred tax liability (asset) [abstract] |
Deferred income tax revenue | $ 154

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- Definition The amount of tax expense (income) relating to changes in deferred tax liabilities and deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2018-01-01 -Paragraph 81 -Subparagraph g -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2018-03-01&anchor=para_81_g_ii&doctype=Standard -URIDate 2018-03-16 + Details
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