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Financial Instruments - Summarizes Company's Financial Assets and Liabilities Measured at Fair Value (Detail) - MXN ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Disclosure of detailed information about financial instruments [line items] |  |
Derivative financial instruments asset | $ 1,897 | $ 955
Level 1 [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Derivative financial instruments asset |  | 22
Derivative financial instruments liability | 236 | 26
Trust assets of labor obligations | 1,142 | 1,801
Level 2 [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Derivative financial instruments asset | 2,605 | 1,183
Derivative financial instruments liability | $ 881 | $ 4,468

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- Definition The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard -URIDate 2018-03-16 + Details
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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 Trust Assets Of Labor Obligations + References No definition available. + Details
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- Details
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- Details
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