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Other Liabilities, Provisions and Commitments - Summary of Changes in Balance of Provisions Recorded (Parenthetical) (Detail) - Brazil [member] - MXN ($) $ in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Disclosure of other provisions [line items] |  |
Tax claims amount | $ 7,840 |
Contingency related to deductibility of tax goodwill balance | 5,321 |
Contingencies guaranteed agreements value | 8,081 |
Tax benefit | $ 0 | $ 1,874

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The amount of goodwill in a business combination that is expected to be deductible for tax purposes. [Refer: Goodwill; Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2018-01-01 -Paragraph B64 -Subparagraph k -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2018-03-01&anchor=para_B64_k&doctype=Appendix&seq=2 -URIDate 2018-03-16 + Details
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- Definition 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]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 12 -IssueDate 2018-01-01 -Paragraph 80 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2018-03-01&anchor=para_80_f&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition Contingencies guaranteed agreements value. + References No definition available. + Details
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- Details
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