XML 128 R82.htm IDEA: XBRL DOCUMENT
v3.19.1

Other Expenses, Net - Summary of Other Expenses (Parenthetical) (Detail) $ in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 MXN ($) | Dec. 31, 2017 MXN ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 MXN ($)
Material income and expense [abstract] |  |  |  |
Income tax penalty imposed |  | $ 491 | $ 25 |
Property damages and natural disasters | $ 1,080 |  |  |
Impairment losses of fixed assets | 445 | 984 |  | $ 1,899
Impairment losses of goodwill | 0 | $ 1,920 |  | $ 0
Loss on valuation of assets held for sale | $ 439 |  |  |

X
- Definition Fines and penalty expense. + References No definition available. + Details
Name: | cx_FinesAndPenaltyExpense
Namespace Prefix: | cx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Impairment loss on fixed assets. + References No definition available. + Details
Name: | cx_ImpairmentLossOnFixedAssets
Namespace Prefix: | cx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Property damages and natural disasters. + References No definition available. + Details
Name: | cx_PropertyDamagesAndNaturalDisasters
Namespace Prefix: | cx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Adjustments for decrease (increase) in financial assets held for trading to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Financial assets; Financial assets at fair value through profit or loss, classified as held for trading; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_20&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of impairment loss recognised in profit or loss for goodwill. [Refer: Impairment loss recognised in profit or loss; Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2018-01-01 -Paragraph B67 -Subparagraph d -Clause v -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2018-03-01&anchor=para_B67_d_v&doctype=Appendix&seq=2 -URIDate 2018-03-16 + Details
Name: | ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_MaterialIncomeAndExpenseAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration