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Related Parties - Additional Information (Detail) $ in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2018 MXN ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 MXN ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 MXN ($) | Dec. 31, 2016 USD ($)
Disclosure of Transactions Between Related Parties [Line Items] |  |  |  |  |  |
Amount of compensation of CEMEX board of directors | $ 732 | $ 38 | $ 887 | $ 47 | $ 802 | $ 43
Performance Bonuses [Member] |  |  |  |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |  |  |  |
Amount of compensation of CEMEX board of directors | 559 | 29 | 661 | 35 | 595 | 32
Executive Share-Based Compensation Programs [Member] |  |  |  |  |  |
Disclosure of Transactions Between Related Parties [Line Items] |  |  |  |  |  |
Amount of compensation of CEMEX board of directors | $ 173 | $ 9 | $ 227 | $ 12 | $ 207 | $ 11

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- Definition The amount of remuneration paid or payable to the entity's directors. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard -URIDate 2018-03-16 + Details
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- Details
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- Details
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