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Assets Held For Sale and Other Current Assets - Summary of Assets and liabilities Held for Sale (Detail) - MXN ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Asset held for sale and discontinued operations [Line Items] |  |
Assets | $ 1,378 | $ 21,029
Liabilities | 0 | 815
Net assets | 1,378 | 20,214
Concrete pipe division [member] |  |
Asset held for sale and discontinued operations [Line Items] |  |
Assets | 0 | 9,426
Liabilities | 0 | 642
Net assets | 0 | 8,784
Fairborn cement plant [member] |  |
Asset held for sale and discontinued operations [Line Items] |  |
Assets | 0 | 5,957
Liabilities | 0 | 164
Net assets | 0 | 5,793
Investment in GCC shares [member] |  |
Asset held for sale and discontinued operations [Line Items] |  |
Assets | 0 | 3,882
Liabilities | 0 | 0
Net assets | 0 | 3,882
Idle assets in Andorra, Spain [member] |  |
Asset held for sale and discontinued operations [Line Items] |  |
Assets | 580 | 560
Liabilities | 0 | 0
Net assets | 580 | 560
Concrete pumping equipment [member] |  |
Asset held for sale and discontinued operations [Line Items] |  |
Assets | 0 | 213
Liabilities | 0 | 0
Net assets | 0 | 213
Other assets held for sale [member] |  |
Asset held for sale and discontinued operations [Line Items] |  |
Assets | 798 | 991
Liabilities | 0 | 9
Net assets | $ 798 | $ 982

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- Definition The amount of assets and liabilities included in disposal groups classified as held for sale. [Refer: Liabilities; Disposal groups classified as held for sale [Member]] + References No definition available. + Details
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- Definition The amount of current assets other than non-current assets or disposal groups classified as held for sale or as held for distribution to owners. [Refer: Current assets; Disposal groups classified as held for sale [member]; Non-current assets or disposal groups classified as held for sale; Non-current assets or disposal groups classified as held for distribution to owners] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 66 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_66&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of liabilities included in disposal groups classified as held for sale. [Refer: Liabilities; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2017-01-01 -Paragraph 38 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=5&date=2017-03-01&anchor=para_38&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 54 -Subparagraph p -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_p&doctype=Standard -URIDate 2017-03-09 + Details
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