CEMEX SAB DE CV (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 1001 - Document - Document and Entity Information Network

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http://imetrix.edgar-online.com/taxonomy/role/DocumentandEntityInformation
2 Document Information [Table] Table

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dei:DocumentInformationTable
3 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
4 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
5 CPO [Member] Member cx:OrdinaryParticipationCertificatesMember
6 Series A Shares [member] Member cx:SeriesASharesMember
7 Series B Shares [member] Member cx:SeriesBSharesMember
8 Document Information [Line Items] LineItems dei:DocumentInformationLineItems
9 Document Type Concept (Submission Type) For Period dei:DocumentType
10 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
11 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
12 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
13 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
14 Trading Symbol Concept (Text/String) For Period dei:TradingSymbol
15 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
16 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
17 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
18 Entity Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
19 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
20 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
21 Entity Emerging Growth Company Concept (Yes/No) For Period dei:EntityEmergingGrowthCompany
22 Entity Shell Company Concept (Yes/No) For Period dei:EntityShellCompany
23 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
24 1003 - Statement - Consolidated Income Statements Network

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http://imetrix.edgar-online.com/taxonomy/role/StatementOfComprehensiveIncomeProfitOrLossByFunctionOfExpense-310000
25 Implied Table Table

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implied:Table
26 Profit or loss [abstract] Abstract ifrs-full:IncomeStatementAbstract
27 Revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
28 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
29 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
30 Operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
31 Operating earnings before other expenses, net Concept (Monetary) For Period Credit cx:OperatingEarningsLossBeforeOtherExpensesNet
32 Other expenses, net Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
33 Operating earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
34 Financial expense Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
35 Financial income and other items, net Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncomeCost
36 Share of profit of equity accounted investees Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
37 Earnings before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
38 Income tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
39 Net income from continuing operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperations
40 Discontinued operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
41 CONSOLIDATED NET INCOME Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
42 Non-controlling interest net income Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
43 CONTROLLING INTEREST NET INCOME Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
44 Basic earnings per share Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
45 Basic earnings per share from continuing operations Concept (Share) For Period ifrs-full:BasicEarningsLossPerShareFromContinuingOperations
46 Diluted earnings per share Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
47 Diluted earnings per share from continuing operations Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations
48 1004 - Statement - Consolidated Statements of Comprehensive Income Network

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http://imetrix.edgar-online.com/taxonomy/role/StatementOfComprehensiveIncomeOCIComponentsPresentedNetOfTax-410000
49 Implied Table Table

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implied:Table
50 Statement of comprehensive income [abstract] Abstract ifrs-full:StatementOfComprehensiveIncomeAbstract
51 CONSOLIDATED NET INCOME Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
52 Items that will not be reclassified subsequently to the income statement Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
53 Net actuarial gains (losses) from remeasurements of defined benefit pension plans Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
54 Income tax recognized directly in other comprehensive income Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss
55 Items that will not be reclassified subsequently to profit or loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax
56 Items that are or may be reclassified subsequently to the income statement Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
57 Effects from available-for-sale investments and derivative financial instruments designated as cash flow hedges Concept (Monetary) For Period Credit cx:OtherComprehensiveIncomeBeforeTaxAvailableForSaleInvestmentsAndCashFlowHedges
58 Currency translation results of foreign subsidiaries Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation
59 Income tax recognized directly in other comprehensive income Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss
60 Items that are or may be reclassified subsequently to profit or loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
61 Total items of other comprehensive income, net Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
62 TOTAL COMPREHENSIVE INCOME Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
63 Non-controlling interest comprehensive income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
64 CONTROLLING INTEREST COMPREHENSIVE INCOME Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
65 1005 - Statement - Consolidated Statements of Financial Position Network

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http://imetrix.edgar-online.com/taxonomy/role/StatementOfFinancialPositionCurrentNonCurrent-210000
66 Implied Table Table

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implied:Table
67 Statement of financial position [abstract] Abstract ifrs-full:StatementOfFinancialPositionAbstract
68 ASSETS Abstract ifrs-full:AssetsAbstract
69 CURRENT ASSETS Abstract ifrs-full:CurrentAssetsAbstract
70 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
71 Trade accounts receivable, net Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
72 Other accounts receivable Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
73 Inventories, net Concept (Monetary) As Of Debit ifrs-full:Inventories
74 Assets held for sale Concept (Monetary) As Of Debit ifrs-full:CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners
75 Other current assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
76 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
77 NON-CURRENT ASSETS Abstract ifrs-full:NoncurrentAssetsAbstract
78 Equity accounted investees Concept (Monetary) As Of Debit ifrs-full:InvestmentAccountedForUsingEquityMethod
79 Other investments and non-current accounts receivable Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssets
80 Property, machinery and equipment, net Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
81 Goodwill and intangible assets, net Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
82 Deferred income tax assets Concept (Monetary) As Of Debit ifrs-full:NetDeferredTaxAssets
83 Total non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
84 TOTAL ASSETS Concept (Monetary) As Of Debit ifrs-full:Assets
85 LIABILITIES AND STOCKHOLDERS' EQUITY Abstract ifrs-full:LiabilitiesAbstract
86 CURRENT LIABILITIES Abstract ifrs-full:CurrentLiabilitiesAbstract
87 Short-term debt Concept (Monetary) As Of Credit ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings
88 Other financial obligations Concept (Monetary) As Of Credit ifrs-full:OtherCurrentFinancialLiabilities
89 Trade payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
90 Income tax payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
91 Other current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
92 Liabilities directly related to assets held for sale Concept (Monetary) As Of Credit ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale
93 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
94 NON-CURRENT LIABILITIES Abstract ifrs-full:NoncurrentLiabilitiesAbstract
95 Long-term debt Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
96 Other financial obligations Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentFinancialLiabilities
97 Employee benefits Concept (Monetary) As Of Debit ifrs-full:SurplusDeficitInPlan
98 Deferred income tax liabilities Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
99 Other non-current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
100 Total non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
101 TOTAL LIABILITIES Concept (Monetary) As Of Credit ifrs-full:Liabilities
102 STOCKHOLDERS' EQUITY Abstract ifrs-full:EquityAbstract
103 Controlling interest: Abstract cx:ControllingInterestAbstract
104 Common stock and additional paid-in capital Concept (Monetary) As Of Credit cx:AdditionalPaidinCapitalAndCommonStock
105 Other equity reserves Concept (Monetary) As Of Credit ifrs-full:OtherReserves
106 Retained earnings Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
107 Net income Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
108 Total controlling interest Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
109 Non-controlling interest and perpetual debentures Concept (Monetary) As Of Credit cx:NoncontrollingInterestsAndPerpetualDebentures
110 TOTAL STOCKHOLDERS' EQUITY Concept (Monetary) As Of Credit ifrs-full:Equity
111 TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
112 1006 - Statement - Consolidated Statements of Cash Flows Network

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http://imetrix.edgar-online.com/taxonomy/role/StatementOfCashFlowsDirectMethod-510000
113 Implied Table Table

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implied:Table
114 Statement of cash flows [abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
115 OPERATING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
116 CONSOLIDATED NET INCOME Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
117 Discontinued operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
118 Net income from continuing operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperations
119 Non-cash items: Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
120 Depreciation and amortization of assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
121 Impairment losses Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
122 Share of profit of equity accounted investees Concept (Monetary) For Period Credit cx:AdjustmentsNoncashItemsShareOfProfitOfEquityAccountedInvestees
123 Results on sale of subsidiaries, other disposal groups and others Concept (Monetary) For Period Credit cx:AdjustmentsNoncashItemsResultsOnSaleOfSubsidiariesOtherDisposalGroupsAndOthers
124 Financial income and other items, net Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForFinanceIncome
125 Income taxes Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncomeTaxExpense
126 Changes in working capital, excluding income taxes Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInWorkingCapital
127 Net cash flow provided by operating activities from continuing operations before financial expense, coupons on perpetual debentures and income taxes Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperations
128 Financial expense and coupons on perpetual debentures paid Concept (Monetary) For Period Credit cx:FinancialExpenseAndCouponsOnPerpetualDebenturesPaidClassifiedAsOperatingActivities
129 Income taxes paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
130 Net cash flow provided by operating activities from continuing operations Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInOperatingActivitiesContinuingOperations
131 Net cash flow provided by operating activities from discontinued operations Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations
132 Net cash flows provided by operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
133 INVESTING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
134 Property, machinery and equipment, net Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
135 Acquisition and disposal of subsidiaries and other disposal groups, net Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
136 Intangible assets and other deferred charges Concept (Monetary) For Period Credit ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
137 Non-current assets and others, net Concept (Monetary) For Period Credit ifrs-full:PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities
138 Net cash flows provided by (used in) investing activities from continuing operations Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivitiesContinuingOperations
139 Net cash flows provided by (used in) investing activities from discontinued operations Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations
140 Net cash flows provided by (used in) investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
141 FINANCING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
142 Sale of non-controlling interests in subsidiaries Concept (Monetary) For Period Debit ifrs-full:ProceedsFromChangesInOwnershipInterestsInSubsidiaries
143 Derivative instruments Concept (Monetary) For Period Debit cx:DerivativeFinancialInstrumentClassifiedAsFinancingActivities
144 Repayment of debt, net Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
145 Other financial obligations, net Concept (Monetary) For Period Debit ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities
146 Share repurchase program Concept (Monetary) For Period Credit ifrs-full:PaymentsToAcquireOrRedeemEntitysShares
147 Securitization of trade receivables Concept (Monetary) For Period Credit cx:PaymentsForProceedsFromSecuritizationOfTradeReceivablesClassifiedAsFinancingActivities
148 Non-current liabilities, net Concept (Monetary) For Period Credit cx:NoncurrentLiabilitiesNetClassifiedAsFinancingActivities
149 Net cash flows used in financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
150 Decrease in cash and cash equivalents from continuing operations Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
151 Increase in cash and cash equivalents from discontinued operations Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsDiscontinuedOperations
152 Cash conversion effect, net Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
153 Cash and cash equivalents at beginning of period Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
154 CASH AND CASH EQUIVALENTS AT END OF PERIOD Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
155 Changes in working capital, excluding income taxes: Abstract cx:ChangesInWorkingCapitalExcludingIncomeTaxesAbstract
156 Trade receivables, net Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable
157 Other accounts receivable and other assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables
158 Inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
159 Trade payables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable
160 Other accounts payable and accrued expenses Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherOperatingPayables
161 Changes in working capital, excluding income taxes Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInWorkingCapital
162 1007 - Statement - Statements of Changes in Stockholders' Equity Network

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http://imetrix.edgar-online.com/taxonomy/role/StatementOfChangesInEquity-610000
163 Statement of changes in equity [table] Table

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ifrs-full:StatementOfChangesInEquityTable
164 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
165 Equity [member] Member ifrs-full:EquityMember
166 Common stock [member] Member ifrs-full:IssuedCapitalMember
167 Additional paid-in capital [member] Member ifrs-full:AdditionalPaidinCapitalMember
168 Other equity reserves [member] Member ifrs-full:OtherReservesMember
169 Retained earnings [member] Member ifrs-full:RetainedEarningsMember
170 Total controlling interest [Member] Member ifrs-full:EquityAttributableToOwnersOfParentMember
171 Non-controlling interests and perpetual debentures [member] Member cx:NoncontrollingInterestsAndPerpetualDebenturesMember
172 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
173 Currently stated [member] Member ifrs-full:RestatedMember
174 Restated balance [member] Member cx:RestatedBalanceMember
175 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
176 Equity at beginning of period Concept (Monetary) As Of Credit ifrs-full:Equity
177 Effects from adoption of IFRS 9 (note 2.1) Concept (Monetary) For Period Debit cx:AdjustmentForAdoptionOfIFRS9
178 Net income Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
179 Total other items of comprehensive income, net Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
180 Capitalization of retained earnings Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings
181 Own shares purchased under share repurchase program Concept (Monetary) For Period Debit ifrs-full:PurchaseOfTreasuryShares
182 Effects of early conversion of convertible subordinated notes Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughConversionOfConvertibleInstruments
183 Share-based compensation Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
184 Effects of perpetual debentures Concept (Monetary) For Period Credit cx:IncreaseDecreaseThroughPerpetualDebentures
185 Changes in non-controllinginterest Concept (Monetary) For Period Credit cx:IncreaseDecreaseInNoncontrollingInterests
186 Equity at end of period Concept (Monetary) As Of Credit ifrs-full:Equity
187 1008 - Disclosure - Description of Business Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDescriptionOfBusinessExplanatory
188 Implied Table Table

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implied:Table
189 Text block [abstract] Abstract cx:TextBlockAbstract
190 Description of Business Concept (Text Block (HTML)) For Period cx:DisclosureOfDescriptionOfBusinessExplanatory
191 1009 - Disclosure - Significant Accounting Policies Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
192 Implied Table Table

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implied:Table
193 Text block [abstract] Abstract cx:TextBlockAbstract
194 Significant Accounting Policies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
195 1010 - Disclosure - Revenue and Construction Contracts Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRevenueExplanatory
196 Implied Table Table

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implied:Table
197 Text block [abstract] Abstract cx:TextBlockAbstract
198 Revenue and Construction Contracts Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRevenueExplanatory
199 1011 - Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfBusinessCombinationsDiscontinuedOperationsAndOperatingSegmentsExplanatory
200 Implied Table Table

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implied:Table
201 Text block [abstract] Abstract cx:TextBlockAbstract
202 Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business Concept (Text Block (HTML)) For Period cx:DisclosureOfBusinessCombinationsDiscontinuedOperationsAndOperatingSegmentsExplanatory
203 1012 - Disclosure - Operating Expenses, Depreciation and Amortization Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfExpensesExplanatory
204 Implied Table Table

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implied:Table
205 Text block [abstract] Abstract cx:TextBlockAbstract
206 Operating Expenses, Depreciation and Amortization Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExpensesExplanatory
207 1013 - Disclosure - Other Expenses, Net Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherOperatingIncomeExpenseExplanatory
208 Implied Table Table

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implied:Table
209 Text block [abstract] Abstract cx:TextBlockAbstract
210 Other Expenses, Net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherOperatingIncomeExpenseExplanatory
211 1014 - Disclosure - Financial Income and Other Items, Net Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinanceIncomeExpenseExplanatory
212 Implied Table Table

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implied:Table
213 Text block [abstract] Abstract cx:TextBlockAbstract
214 Financial Income and Other Items, Net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory
215 1015 - Disclosure - Cash and Cash Equivalents Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashAndCashEquivalentsExplanatory
216 Implied Table Table

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implied:Table
217 Text block [abstract] Abstract cx:TextBlockAbstract
218 Cash and Cash Equivalents Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
219 1016 - Disclosure - Trade Accounts Receivable, Net Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTradeAndOtherReceivablesExplanatory
220 Implied Table Table

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implied:Table
221 Text block [abstract] Abstract cx:TextBlockAbstract
222 Trade Accounts Receivable, Net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
223 1017 - Disclosure - Other Accounts Receivable Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherAccountsReceivableExplanatory
224 Implied Table Table

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implied:Table
225 Text block [abstract] Abstract cx:TextBlockAbstract
226 Other Accounts Receivable Concept (Text Block (HTML)) For Period cx:DisclosureOfOtherAccountsReceivableExplanatory
227 1018 - Disclosure - Inventories, Net Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInventoriesExplanatory
228 Implied Table Table

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implied:Table
229 Text block [abstract] Abstract cx:TextBlockAbstract
230 Inventories, Net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInventoriesExplanatory
231 1019 - Disclosure - Assets Held for Sale and Other Current Asset Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfAssetsHeldForSaleAndOtherCurrentAssetsExplanatory
232 Implied Table Table

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233 Text block [abstract] Abstract cx:TextBlockAbstract
234 Assets Held for Sale and Other Current Asset Concept (Text Block (HTML)) For Period cx:DisclosureOfAssetsHeldForSaleAndOtherCurrentAssetsExplanatory
235 1020 - Disclosure - Equity Accounted Investees, Other Investments and Non-Current Accounts Receivable Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEquityAccountedInvesteesOtherInvestmentsAndNoncurrentAccountsReceivableExplanatory
236 Implied Table Table

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implied:Table
237 Text block [abstract] Abstract cx:TextBlockAbstract
238 Equity Accounted Investees, Other Investments and Non-Current Accounts Receivable Concept (Text Block (HTML)) For Period cx:DisclosureOfEquityAccountedInvesteesOtherInvestmentsAndNoncurrentAccountsReceivableExplanatory
239 1021 - Disclosure - Property, Machinery and Equipment, Net Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatory
240 Implied Table Table

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implied:Table
241 Text block [abstract] Abstract cx:TextBlockAbstract
242 Property, Machinery and Equipment, Net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
243 1022 - Disclosure - Goodwill and Intangible Assets, Net Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIntangibleAssetsAndGoodwillExplanatory
244 Implied Table Table

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implied:Table
245 Text block [abstract] Abstract cx:TextBlockAbstract
246 Goodwill and Intangible Assets, Net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsAndGoodwillExplanatory
247 1023 - Disclosure - Financial Instruments Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialInstrumentsExplanatory
248 Implied Table Table

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249 Text block [abstract] Abstract cx:TextBlockAbstract
250 Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsExplanatory
251 1024 - Disclosure - Other Current and Non-current Liabilities Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherLiabilitiesExplanatory
252 Implied Table Table

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implied:Table
253 Text block [abstract] Abstract cx:TextBlockAbstract
254 Other Current and Non-current Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherLiabilitiesExplanatory
255 1025 - Disclosure - Pensions and Post-Employment Benefits Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDefinedBenefitPlansExplanatory
256 Implied Table Table

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implied:Table
257 Text block [abstract] Abstract cx:TextBlockAbstract
258 Pensions and Post-Employment Benefits Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDefinedBenefitPlansExplanatory
259 1026 - Disclosure - Income Taxes Network

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http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatory
260 Implied Table Table

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261 Text block [abstract] Abstract cx:TextBlockAbstract
262 Income Taxes Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
263 1027 - Disclosure - Stockholders' Equity Network

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264 Implied Table Table

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265 Text block [abstract] Abstract cx:TextBlockAbstract
266 Stockholders' Equity Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
267 1028 - Disclosure - Executive Share-Based Compensation Network

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268 Implied Table Table

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269 Text block [abstract] Abstract cx:TextBlockAbstract
270 Executive Share-Based Compensation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory
271 1029 - Disclosure - Earnings per Share Network

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272 Implied Table Table

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273 Text block [abstract] Abstract cx:TextBlockAbstract
274 Earnings per Share Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEarningsPerShareExplanatory
275 1030 - Disclosure - Commitments Network

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276 Implied Table Table

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277 Text block [abstract] Abstract cx:TextBlockAbstract
278 Commitments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsExplanatory
279 1031 - Disclosure - Legal Proceedings Network

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280 Implied Table Table

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281 Text block [abstract] Abstract cx:TextBlockAbstract
282 Legal Proceedings Concept (Text Block (HTML)) For Period cx:DisclosureOfLegalProceedingsExplanatory
283 1032 - Disclosure - Related Parties Network

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284 Implied Table Table

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285 Text block [abstract] Abstract cx:TextBlockAbstract
286 Related Parties Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
287 1033 - Disclosure - Main Subsidiaries Network

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288 Implied Table Table

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289 Investments accounted for using equity method [abstract] Abstract ifrs-full:InvestmentsAccountedForUsingEquityMethodAbstract
290 Main Subsidiaries Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
291 1034 - Disclosure - Subsequent Events Network

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292 Implied Table Table

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293 Text block [abstract] Abstract cx:TextBlockAbstract
294 Subsequent Events Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory
295 1035 - Disclosure - Significant Accounting Policies (Policies) Network

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297 Text block [abstract] Abstract cx:TextBlockAbstract
298 Explanatory Description Of Accounting Policy for Basis of Presentation and Disclosure Concept (Text Block (HTML)) For Period cx:DescriptionOfAccountingPolicyForScopeOfConsolidationExplanatory
299 Principles of Consolidation Concept (Text Block (HTML)) For Period cx:DescriptionOfAccountingPolicyForPrinciplesOfConsolidationExplanatory
300 Use of Estimates and Critical Assumptions Concept (Text Block (HTML)) For Period cx:DescriptionOfAccountingPolicyForUseOfEstimatesExplanatory
301 Foreign Currency Transactions and Translation of Foreign Currency Financial Statements Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
302 Cash and Cash Equivalents Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
303 Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
304 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
305 Property, Machinery and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
306 Business Combinations, Goodwill, Other Intangible Assets and Deferred Charges Concept (Text Block (HTML)) For Period cx:DescriptionOfAccountingPolicyForBusinessCombinationsGoodwillOtherIntangibleAssetsAndDeferredChargesExplanatory
307 Impairment of Long-lived Assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory
308 Provisions Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
309 Pensions and Other Post-Employment Benefits Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
310 Income Taxes Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
311 Stockholders' Equity Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIssuedCapitalExplanatory
312 Revenue Recognition Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
313 Cost of Sales and Operating Expenses Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForExpensesExplanatory
314 Executive Share-Based Compensation Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
315 Emission Rights Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmissionRightsExplanatory
316 Concentration of Credit Concept (Text Block (HTML)) For Period cx:DescriptionOfAccountingPolicyForcreditConcentrationExplanatory
317 Newly Issued IFRS Not Yet Adopted Concept (Text Block (HTML)) For Period cx:DescriptionOfAccountingPolicyForRecentAccountingPronouncementsNotYetAdoptedExplanatory
318 1036 - Disclosure - Significant Accounting Policies (Tables) Network

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319 Implied Table Table

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320 Text block [abstract] Abstract cx:TextBlockAbstract
321 Summary of Foreign Exchange Rates Concept (Text Block (HTML)) For Period cx:DisclosureOfExchangeRatesExplanatory
322 Summary of Maximum Average Useful Lives of Fixed Assets Concept (Text Block (HTML)) For Period cx:DisclosureOfPropertyPlantAndEquipmentEstimatedUsefulLifeExplanatory
323 Summary of Statutory Tax Rates Concept (Text Block (HTML)) For Period cx:DisclosureOfStatutoryTaxRateExplanatory
324 Summary of Estimated Range of Opening Statement of Financial Position Effects Concept (Text Block (HTML)) For Period cx:DisclosureOfChangesInFinancialPositionExplanatory
325 1037 - Disclosure - Revenue and Construction Contracts (Tables) Network

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326 Implied Table Table

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327 Text block [abstract] Abstract cx:TextBlockAbstract
328 Summary of Revenue, After Sales and Eliminations Between Related Parties Resulting from Consolidation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRevenueFromContractsWithCustomersExplanatory
329 Disclosure of recognised revenue from construction contracts Concept (Text Block (HTML)) For Period cx:DisclosureOfRecognizedRevenueFromConstructionContractsExplanatory1TextBlock
330 Summary of Changes in the Balance of Contract Liabilities with Customers Concept (Text Block (HTML)) For Period ifrs-full:ExplanationOfSignificantChangesInContractAssetsAndContractLiabilitiesExplanatory
331 1038 - Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business (Tables) Network

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332 Statement [table] Table

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333 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
334 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
335 BRAZIL Member country:BR
336 France [member] Member country:FR
337 Statement [LineItems] LineItems cx:StatementLineItems
338 Summary of Purchase Price Allocation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory
339 Summary of Condensed Combined Information of the Statement of Operations of Discontinued Operations Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDiscontinuedOperationsExplanatory
340 Summary of Condensed Combined Financial Information of Balance Sheet Concept (Text Block (HTML)) For Period cx:DisclosureOfCurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory
341 Summary of Combined Statement of Operations Information of the Net Assets Sold Concept (Text Block (HTML)) For Period cx:DisclosureOfSelectedCombinedStatementOfOperationsInformationOfDisposalGroupsExplanatory
342 Summary of Consolidating Income Statements by Reportable Segment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
343 Summary of Balance sheet Information by Reportable Segment Concept (Text Block (HTML)) For Period cx:DisclosureOfAssetsByOperatingSegmentsExplanatory
344 Summary of Revenues by Line of Business and Reportable Segment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeographicalAreasExplanatory
345 1039 - Disclosure - Operating Expenses, Depreciation and Amortization (Tables) Network

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348 Summary of Consolidated Operating Expense Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExpensesByNatureExplanatory
349 Summary of Depreciation and Amortization Recognized Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDepreciationAndAmortisationExpenseExplanatory
350 1040 - Disclosure - Other Expenses, Net (Tables) Network

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351 Implied Table Table

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352 Text block [abstract] Abstract cx:TextBlockAbstract
353 Summary of Other Expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherOperatingExpenseExplanatory
354 1041 - Disclosure - Financial Income and Other Items, Net (Tables) Network

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356 Text block [abstract] Abstract cx:TextBlockAbstract
357 Summary of Financial Income and Other Items Concept (Text Block (HTML)) For Period cx:DisclosureOfFinanceIncomeCostsExplanatory
358 1042 - Disclosure - Cash and Cash Equivalents (Tables) Network

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359 Implied Table Table

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360 Text block [abstract] Abstract cx:TextBlockAbstract
361 Summary of Cash and Cash Equivalents Concept (Text Block (HTML)) For Period cx:ScheduleOfCashAndCashEquivalentsTableTextBlock
362 1043 - Disclosure - Trade Accounts Receivable, Net (Tables) Network

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363 Implied Table Table

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364 Text block [abstract] Abstract cx:TextBlockAbstract
365 Summary of Trade Accounts Receivable Concept (Text Block (HTML)) For Period cx:DisclosureOfDetailedInformationOfTradeAccountsReceivablesExplanatory
366 Summary of Trade Accounts Receivable and Allowance for Expected Credit Loss Concept (Text Block (HTML)) For Period cx:DisclosureOfDetailedInformationOfTradeAccountsReceivablesAndAllowanceForExpectedCreditLossExplanatory
367 Summary of Allowance for Expected Credit Losses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAllowanceForCreditLossesExplanatory
368 1044 - Disclosure - Other Accounts Receivable (Tables) Network

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369 Implied Table Table

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370 Text block [abstract] Abstract cx:TextBlockAbstract
371 Summary of Consolidated Other Accounts Receivable Concept (Text Block (HTML)) For Period cx:DisclosureOfDetailedInformationOfOtherAccountsReceivableExplanatory
372 1045 - Disclosure - Inventories, Net (Tables) Network

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373 Implied Table Table

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374 Text block [abstract] Abstract cx:TextBlockAbstract
375 Summary of Consolidated Balance of Inventories Concept (Text Block (HTML)) For Period cx:ScheduleOfInventoriesExplanatory
376 1046 - Disclosure - Assets Held for Sale and Other Current Asset (Tables) Network

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377 Implied Table Table

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378 Text block [abstract] Abstract cx:TextBlockAbstract
379 Summary of Assets and Liabilities Held for Sale Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory
380 1047 - Disclosure - Equity Accounted Investees, Other Investments and Non-Current Accounts Receivable (Tables) Network

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381 Implied Table Table

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382 Text block [abstract] Abstract cx:TextBlockAbstract
383 Summary of Main Investments in Common Shares of Associates Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesExplanatory
384 Summary of Combined Condensed Statement of Financial Position Concept (Text Block (HTML)) For Period cx:DisclosureOfAssociatesCondensedBalanceSheetsExplanatory
385 Summary of Combined Selected Information of the Statements of Operations Concept (Text Block (HTML)) For Period cx:DisclosureOfAssociatesIncomeFromOperationsExplanatory
386 Summary of Share of Profit of Equity Accounted Investees by Reportable Segment Concept (Text Block (HTML)) For Period cx:DisclosureOfShareOfProfitAfterTaxOfEquityAccountedUnitsExplanatory
387 Summary of Other Investments and Non-current Accounts Receivable Concept (Text Block (HTML)) For Period cx:DisclosureOfOtherInvestmentsAndNoncurrentAccountsReceivableExplanatory
388 1048 - Disclosure - Property, Machinery and Equipment, Net (Tables) Network

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389 Implied Table Table

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390 Text block [abstract] Abstract cx:TextBlockAbstract
391 Disclosure of Net Change in Property, Machinery and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
392 Summary of Recognized Impairment Losses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossExplanatory
393 1049 - Disclosure - Goodwill and Intangible Assets, Net (Tables) Network

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394 Implied Table Table

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395 Text block [abstract] Abstract cx:TextBlockAbstract
396 Summary of Consolidated Goodwill, Intangible Assets and Deferred Charges Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory
397 Summary of Changes in Consolidated goodwill Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillExplanatory
398 Summary of Changes in Intangible Asset Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory
399 Summary of Goodwill Balances Allocated by Operating Segment Concept (Text Block (HTML)) For Period cx:DisclosureOfGoodwillAllocatedToOperatingSegmentExplanatory
400 Summary of Pre-tax Discount Rates and Long-term Growth Rates Used to Determine the Discounted Cash Flows Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory
401 1050 - Disclosure - Financial Instruments (Tables) Network

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404 Summary of Debt Summarized by Interest Rates and Currencies Concept (Text Block (HTML)) For Period cx:DisclosureOfDebtByTypeOfInterestRateAndCurrenciesExplanatory
405 Summary of Consolidated Debt by Type of Instrument Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDebtSecuritiesExplanatory
406 Summary of Changes in Consolidated Debt Concept (Text Block (HTML)) For Period cx:DisclosureOfChangesInConsolidatedDebtExplanatory
407 Summary of Non-Current Notes Payable Concept (Text Block (HTML)) For Period cx:ScheduleOfLongtermBorrowingsExplanatory
408 Schedule of Consolidated Long-Term Debt Concept (Text Block (HTML)) For Period cx:DisclosureOfLoansAndOtherBorrowingsExplanatory
409 Schedule of Lines of Credit Concept (Text Block (HTML)) For Period cx:DisclosureOfDetailedInformationAboutLinesOfCreditExplanatory
410 Summary of Margin over LIBOR Depending on Leverage Ration Concept (Text Block (HTML)) For Period cx:DisclosureOfDetailedInformationAboutApplicableMarginOverLIBORExplanatory
411 Summary of Coverage Ratio and Leverage Ratio Concept (Text Block (HTML)) For Period cx:DisclosureOfDetailedInformationAboutCoverageRatioAndLeverageRatioExplanatory
412 Summary of Consolidated Financial Ratios Concept (Text Block (HTML)) For Period cx:DisclosureOfDetailedInformationAboutConsolidatedFinancialRatiosExplanatory
413 Summary of Other Financial Obligations Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialLiabilitiesExplanatory
414 Summary of Carrying Amounts and Fair Value of Financial Instruments Concept (Text Block (HTML)) For Period cx:DisclosureOfClassificationOfFinancialAssetsAndLiabilitiesExplanatory
415 Summary of Fair Value of Derivative Financial Instruments at Fair Value Hierarchy Concept (Text Block (HTML)) For Period cx:DisclosureOfFairValueOfFinancialInstrumentsAssetsAndLiabilitiesExplanatory
416 Summary of Derivative Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialAssetsExplanatory
417 Summary of Consolidated Net Monetary Assets (Liabilities) by Currency Concept (Text Block (HTML)) For Period cx:DisclosureOfNetMonetaryAssetsLiabilitiesByCurrencyExplanatory
418 1051 - Disclosure - Other Current and Non-current Liabilities (Tables) Network

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419 Implied Table Table

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420 Text block [abstract] Abstract cx:TextBlockAbstract
421 Summary of Other Current Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherCurrentLiabilitiesExplanatory
422 Summary of Other Non-current Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherNoncurrentLiabilitiesExplanatory
423 Summary of Changes in Consolidated Other Current and Non-Current Liabilities Concept (Text Block (HTML)) For Period cx:DisclosureOfChangesInConsolidatedOtherCurrentAndNoncurrentLiabilitiesLiabilityExplanatory
424 1052 - Disclosure - Pensions and Post-Employment Benefits (Tables) Network

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427 Schedule Actuarial Results Related to Pension and Other Post Retirement Benefits Concept (Text Block (HTML)) For Period cx:DisclosureOfPensionsAndPostretirementBenefitsExplanatory
428 Summary of Actuarial (Gains) Losses Concept (Text Block (HTML)) For Period cx:DisclosureOfActuarialGainLossesExplanatory
429 Disclosure of Net Defined Benefit Liability (Asset) Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory
430 Summary of Plan Assets Measured at Estimated Fair Value Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfPlanAssetsExplanatory
431 Summary of Significant Assumptions Used in the Determination of the Benefit Obligation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory
432 Schedule of Estimated Payments for Pensions and Other Post-Employment Benefits Concept (Text Block (HTML)) For Period cx:DisclosureOfEstimatedPaymentsForPensionsAndOtherPostemploymentBenefitsExplanatory
433 Aggregate Projected Benefit Obligation for Pension Plans and Other Post-Employment Benefits and the Plan Assets by Country Concept (Text Block (HTML)) For Period cx:DisclosureOfAggregateProjectedBenefitObligationForPensionPlansAndOtherPostemploymentBenefitsAndPlanAssetsByCountryExplanatory
434 1053 - Disclosure - Income Taxes (Tables) Network

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435 Implied Table Table

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437 Summary of Income Tax Expense Concept (Text Block (HTML)) For Period cx:DisclosureOfIncomeTaxExpenseExplanatory
438 Summary of Temporary Differences in Deferred Income Tax Assets and Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory
439 Summary of the Balances of the Deferred tax Assets and Liabilities in Statement of Financial Position Concept (Text Block (HTML)) For Period cx:DisclosureOfDeferredTaxAssetsAndLiabilitiesExplanatory
440 Summary of Breakdown of Changes in Consolidated Deferred Income Taxes Concept (Text Block (HTML)) For Period cx:DisclosureOfChangesInDeferredIncomeTaxesExplanatory
441 Summary of Current and Deferred Income Tax Relative to Items of Other Comprehensive Income Loss Concept (Text Block (HTML)) For Period cx:DisclosureOfEffectsOfDeferredTaxesOnComponentsOfOtherComprehensiveIncomeLossExplanatory
442 Schedule of Consolidated Tax Loss and Tax Credits Carry Forwards Expire Concept (Text Block (HTML)) For Period cx:DisclosureOfOperatingLossCarryforwardExplanatory
443 Schedule of Effective Tax Rate Table Concept (Text Block (HTML)) For Period cx:ScheduleOfReconciliationOfEffectiveTaxRateExplanatory
444 Schedule of Reconciliation Between Actual Income Tax Expense and Amount Computed by Applying Statutory Tax Rate Concept (Text Block (HTML)) For Period cx:DisclosureOfReconciliationOfEffectiveTaxRateExplanatory
445 Schedule of Variations Between the Line Item Changes in Deferred Tax Assets Against the Changes in Deferred Tax Assets in the Balance Sheet Concept (Text Block (HTML)) For Period cx:DisclosureOfReconciliationOfIncomeTaxExpenseBenefitExplanatory
446 Schedule of Unrecognized Tax Benefits Concept (Text Block (HTML)) For Period cx:DisclosureOfUnrecognizedDeferredTaxAssetsAndLiabilitiesExplanatory
447 1054 - Disclosure - Stockholders' Equity (Tables) Network

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448 Implied Table Table

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449 Text block [abstract] Abstract cx:TextBlockAbstract
450 Summary of Breakdown of Common Stock and Additional Paid-in Capital Concept (Text Block (HTML)) For Period cx:SummaryOfBreakdownOfCommonStockAndAdditionalPaidinCapitalTextBlockExplanatory
451 Summary of Common Stock Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIssuedCapitalExplanatory
452 Summary of Other Equity Reserves Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReservesAndOtherEquityInterestExplanatory
453 Summary of Translation Effects of Foreign Subsidiaries Included in Statements of Comprehensive Income (Loss) Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory
454 Detail of Cemex's Perpetual Debentures, Excluding Perpetual Debentures Held by Subsidiaries Concept (Text Block (HTML)) For Period cx:DisclosureOfPerpetualDebenturesExplanatory
455 1055 - Disclosure - Earnings per Share (Tables) Network

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456 Implied Table Table

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457 Text block [abstract] Abstract cx:TextBlockAbstract
458 Summary of Calculations of Earnings per Share Concept (Text Block (HTML)) For Period ifrs-full:EarningsPerShareExplanatory
459 1056 - Disclosure - Commitments (Tables) Network

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460 Implied Table Table

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461 Text block [abstract] Abstract cx:TextBlockAbstract
462 Summary of Contractual Obligations Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory
463 1057 - Disclosure - Main Subsidiaries (Tables) Network

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464 Implied Table Table

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465 Investments accounted for using equity method [abstract] Abstract ifrs-full:InvestmentsAccountedForUsingEquityMethodAbstract
466 Summary of Main Subsidiaries Interests Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInSubsidiariesExplanatory
467 1058 - Disclosure - Significant Accounting Policies - Additional Information (Detail) Network

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468 Disclosure of significant accounting policies [table] Table

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469 Currency [Axis] Axis srt:CurrencyAxis
470 All Currencies [Domain] Member currency:AllCurrenciesDomain
471 US Dollar [member] Member currency:USD
472 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
473 Equity [member] Member ifrs-full:EquityMember
474 Retained earnings [member] Member ifrs-full:RetainedEarningsMember
475 Equity Reserve [member] Member cx:EquityReserveMember
476 Common Stock [member] Member cx:CommonStock1Member
477 Additional paid-in capital [member] Member ifrs-full:AdditionalPaidinCapitalMember
478 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
479 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
480 Mobile equipment [member] Member ifrs-full:CommunicationAndNetworkEquipmentMember
481 Range [axis] Axis ifrs-full:RangeAxis
482 Ranges [member] Member ifrs-full:RangesMember
483 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
484 Top of range [member] Member ifrs-full:TopOfRangeMember
485 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
486 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
487 Computer software [member] Member ifrs-full:ComputerSoftwareMember
488 Extraction rights [member] Member ifrs-full:IntangibleExplorationAndEvaluationAssetsMember
489 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
490 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
491 Mexico [member] Member country:MX
492 Initially applied IFRSs [axis] Axis ifrs-full:InitiallyAppliedIFRSsAxis
493 Initially applied IFRSs [member] Member ifrs-full:InitiallyAppliedIFRSsMember
494 In accordance with IFRS 9 [member] Member ifrs-full:InAccordanceWithIFRS9Member
495 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
496 Currently stated [member] Member ifrs-full:RestatedMember
497 Increase (decrease) due to application of IFRS 15 [member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
498 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
499 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
500 Other provisions [member] Member ifrs-full:OtherProvisionsMember
501 Disclosure of significant accounting policies [line items] LineItems cx:DisclosureOfSignificantAccountingPoliciesLineItems
502 Closing exchange rate Concept (Decimal) As Of ifrs-full:ClosingForeignExchangeRate
503 Average exchange rate Concept (Decimal) For Period ifrs-full:AverageForeignExchangeRate
504 Increase in allowance for expected credit losses Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInAllowanceAccountForCreditLossesOfFinancialAssets
505 Increase in deferred income tax asset Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInDeferredTaxLiabilityAsset
506 Allowance for expected credit loss Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
507 Deferred tax asset Concept (Monetary) As Of Credit cx:DeferredTaxAsset
508 Threshold to declare and maintain a hedge Concept (Pure) For Period cx:ThresholdToDeclareAndMaintainHedge
509 Contract liabilities Concept (Monetary) As Of Credit ifrs-full:ContractLiabilities
510 Increase decrease in revenue Concept (Monetary) For Period Credit cx:IncreaseDecreaseInRevenue
511 Capitalization of retained earnings Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings
512 Share-based compensation Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
513 Decrease in debt Concept (Monetary) For Period Credit cx:IncreaseDecreaseInDebtDueToConversionOfConvertibleInstruments
514 Increase (decrease) through conversion of convertible instruments Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughConversionOfConvertibleInstruments
515 Increase in debt and in other current accounts receivable Concept (Monetary) For Period Debit cx:IncreaseDecreaseInDebtAndOtherCurrentAccountsReceivable
516 Carrying amount of assets acquired through capital lease Concept (Monetary) As Of Debit cx:PropertyPlantAndEquipmentAcquiredThroughCapitalLeases
517 Minimum equity interest for significant influence Concept (Percent) As Of cx:MinimumRequirementOfPercentageOfEquityInterest
518 Useful life of intangible asset Concept (Text/String) For Period ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
519 Statutory income tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
520 1059 - Disclosure - Significant Accounting Policies - Summary of Foreign Exchange Rates (Detail) Network

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521 Disclosure Of Foreign Exchange Rates [table] Table

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cx:DisclosureOfForeignExchangeRatesTable
522 Currency [Axis] Axis srt:CurrencyAxis
523 All Currencies [Domain] Member currency:AllCurrenciesDomain
524 US Dollar [member] Member currency:USD
525 Euro [member] Member currency:EUR
526 Pounds [member] Member currency:GBP
527 Colombian Peso [member] Member currency:COP
528 Egyptian, Pound [member] Member currency:EGP
529 Philippine pesos [member] Member currency:PHP
530 Disclosure of foreign exchange rates [line items] LineItems cx:DisclosureOfForeignExchangeRatesLineItems
531 Closing Concept (Decimal) As Of ifrs-full:ClosingForeignExchangeRate
532 Average Concept (Decimal) For Period ifrs-full:AverageForeignExchangeRate
533 1060 - Disclosure - Significant Accounting Policies - Summary of Maximum Average Useful Lives of Fixed Assets (Detail) Network

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534 Disclosure of detailed information about property, plant and equipment [table] Table

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535 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
536 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
537 Administrative Buildings [member] Member cx:AdministrativeBuildingsMember
538 Industrial Buildings [member] Member srt:IndustrialPropertyMember
539 Machinery and Equipment in Plant [member] Member cx:MachineryAndEquipmentInPlantMember
540 Ready-mix Trucks and Motor Vehicles [member] Member cx:ReadymixTrucksAndMotorVehiclesMember
541 Office Equipment and Other Assets [member] Member cx:OfficeEquipmentAndOtherAssetsMember
542 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
543 Years Concept (xbrli:durationItemType) For Period cx:PropertyPlantAndEquipmentUsefulLife1
544 1061 - Disclosure - Significant Accounting Policies - Summary of Statutory Tax Rates (Detail) Network

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545 Reconciliation Of Effective Tax Rate [table] Table

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547 Ranges [member] Member ifrs-full:RangesMember
548 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
549 Top of range [member] Member ifrs-full:TopOfRangeMember
550 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
551 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
552 Mexico [member] Member country:MX
553 United States [member] Member country:US
554 United Kingdom [member] Member country:GB
555 France [member] Member country:FR
556 Germany [member] Member country:DE
557 Spain [member] Member country:ES
558 Philippines [member] Member country:PH
559 Colombia [member] Member country:CO
560 Egypt [member] Member country:EG
561 Other [member] Member cx:AllOtherCountriesMember
562 Reconciliation of Effective Tax Rate [Line Items] LineItems cx:ReconciliationOfEffectiveTaxRateLineItems
563 Applicable tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
564 1062 - Disclosure - Significant Accounting Policies - Summary of Estimated Range of Opening Statement of Financial Position Effects (Detail) Network

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565 Disclosure of changes in financial position [table] Table

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567 Ranges [member] Member ifrs-full:RangesMember
568 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
569 Top of range [member] Member ifrs-full:TopOfRangeMember
570 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
571 Currently stated [member] Member ifrs-full:RestatedMember
572 Increase (decrease) due to application of IFRS 16 [member] Member cx:IncreaseDecreaseDueToApplicationOfIFRS16Member
573 Disclosure of changes in financial position [line items] LineItems cx:DisclosureOfChangesInFinancialPositionLineItems
574 Assets for the right-of-use Concept (Monetary) As Of Debit ifrs-full:RightofuseAssets
575 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
576 Retained earnings Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
577 1063 - Disclosure - Revenue and Construction Contracts - Additional Information (Detail) Network

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578 Disclosure of Revenue [table] Table

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579 Range [axis] Axis ifrs-full:RangeAxis
580 Ranges [member] Member ifrs-full:RangesMember
581 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
582 Top of range [member] Member ifrs-full:TopOfRangeMember
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584 Customers credit term Concept (xbrli:durationItemType) For Period cx:CustomersCreditTerm
585 1064 - Disclosure - Revenue and Construction Contracts - Summary of Revenue, After Sales and Eliminations Between Related Parties Resulting from Consolidation (Detail) Network

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586 Implied Table Table

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587 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
588 From the sale of goods associated to CEMEX's main activities Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoods
589 From the sale of services Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfInformationTechnologyServices
590 From the sale of other goods and services Concept (Monetary) For Period Credit ifrs-full:OtherRevenue
591 Total Concept (Monetary) For Period Credit ifrs-full:Revenue
592 1065 - Disclosure - Revenue and Construction Contracts - Summary of Revenues and Costs Related to Construction Contracts in Progress (Detail) Network

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593 Implied Table Table

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594 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
595 Revenue from construction contracts included in consolidated revenues, accumulated Concept (Monetary) As Of Credit cx:RevenueFromConstructionContractAccumulated
596 Costs incurred in construction contracts included in consolidated cost of sales, accumulated Concept (Monetary) As Of Debit cx:ConstructionContractCostsIncurredAccumulated
597 Construction contracts gross operating profit (loss), accumulated Concept (Monetary) As Of cx:CostsIncurredAndRecognisedProfitLessRecognisedLosses
598 Revenue from construction contracts included in consolidated revenues Concept (Monetary) For Period Credit ifrs-full:RevenueFromConstructionContracts
599 Costs incurred in construction contracts included in consolidated cost of sales Concept (Monetary) For Period Debit cx:CostsIncurredInConstructionContracts
600 Construction contracts gross operating profit (loss) Concept (Monetary) For Period Credit cx:ConstructionContractGrossOperatingProfitLoss
601 1066 - Disclosure - Revenue and Construction Contracts - Summary of Changes in the Balance of Contract Liabilities with Customers (Detail) Network

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602 Implied Table Table

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603 Contract liabilities [abstract] Abstract ifrs-full:ContractLiabilitiesAbstract
604 Opening balance of contract liabilities with customers Concept (Monetary) As Of Credit ifrs-full:ContractLiabilities
605 Increase during the period for new transactions Concept (Monetary) For Period Credit cx:IncreaseDecreaseThroughNewTransactionsContractLiabilities
606 Decrease during the period for exercise or expiration of incentives Concept (Monetary) For Period Debit ifrs-full:DecreaseThroughPerformanceObligationBeingSatisfiedContractLiabilities
607 Currency translation effects Concept (Monetary) For Period Credit cx:CurrencyTranslationAdjustmentsOnContractLiabilities
608 Closing balance of contract liabilities with customers Concept (Monetary) As Of Credit ifrs-full:ContractLiabilities
609 1067 - Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Additional Information (Detail) Network

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610 Disclosure of operating segments [table] Table

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611 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
612 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
613 GCC [member] Member cx:GrupoCementosDeChihuahuaSABDeCVMember
614 Eagle Materials Inc [member] Member cx:EagleMaterialsIncMember
615 Cementos Espaoles de Bombeo, S. de R.L. [member] Member cx:CementosEspaolesDeBombeoSDeRLMember
616 Siam City Cement Public Company Ltd. [member] Member cx:SiamCityCementPublicCompanyLtdMember
617 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
618 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
619 Trinidad Cement Limited [member] Member cx:TrinidadCementLimitedMember
620 Assets and liabilities classified as held for sale [axis] Axis ifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis
621 Assets and liabilities not classified as held for sale [member] Member ifrs-full:AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember
622 Assets and liabilities classified as held for sale [member] Member ifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleMember
623 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
624 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
625 Caribbean TCL [member] Member cx:CaribbeanMember
626 Mexico [member] Member country:MX
627 United States [member] Member country:US
628 Europe [member] Member srt:EuropeMember
629 South, Central America and the Caribbean [member] Member cx:SouthCentralAmericaAndTheCaribbeanMember
630 Asia, Middle East and Africa [member] Member cx:AsiaMiddleEastAndAfricaMember
631 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
632 Continuing Operations [member] Member ifrs-full:ContinuingOperationsMember
633 Concrete Reinforced Pipe Manufacturing Business [member] Member cx:ConcreteReinforcedPipeManufacturingBusinessMember
634 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
635 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
636 Cimentos Vencemos Do Amazonas Ltda [Member] Member cx:CimentosVencemosDoAmazonasLtdaMember
637 Heidelberg Cement Group [member] Member cx:HeidelbergCementGroupMember
638 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
639 Non-adjusting Events After Reporting Period [Member] Member ifrs-full:NonadjustingEventsMember
640 The Offer [member] Member cx:BusinessCombinationOneMember
641 Currency [Axis] Axis srt:CurrencyAxis
642 All Currencies [Domain] Member currency:AllCurrenciesDomain
643 Mexican Peso [member] Member cx:MexicanPesoMember
644 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
645 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
646 Procon Readymix Ltd [member] Member cx:ProconReadymixLtdMember
647 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
648 Option to acquire, number of shares Concept (Shares) For Period cx:SharePurchaseAgreementNumberOfShareAgreedToPurchase
649 Additional ownership percentage acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
650 Ownership percentage Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
651 Consideration transferred Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
652 Fair value of assets acquired Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsRecognisedAsOfAcquisitionDate
653 Share price Concept (Share) For Period cx:PricePerShare
654 Debt assumed Concept (Monetary) As Of Credit ifrs-full:NetDebt
655 Gain on Financial income and other items, net Concept (Monetary) For Period Credit ifrs-full:GainLossRecognisedAsResultOfRemeasuringToFairValueEquityInterestInAcquireeHeldByAcquirerBeforeBusinessCombination
656 Exchange rate Concept (Decimal) As Of ifrs-full:ClosingForeignExchangeRate
657 Net assets acquired Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
658 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
659 Proceeds from divestiture Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations
660 Gain (loss) on sale of business Concept (Monetary) For Period Credit ifrs-full:GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation
661 Withholding tax of discontinued operations Concept (Monetary) As Of Credit cx:DisposalGroupIncludingDiscontinuedOperationsWithholdingTax
662 Foreign currency translation gain (loss) on disposal Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax
663 Contingent consideration on divestiture Concept (Monetary) As Of Debit cx:ContingentConsiderationOnDivestiture
664 Annual production capacity of cement plant sold Concept (num:massItemType) For Period cx:AnnualProductionCapacity
665 Proportional write off of goodwill based on relative fair values Concept (Monetary) For Period Credit ifrs-full:GoodwillDerecognisedWithoutHavingPreviouslyBeenIncludedInDisposalGroupClassifiedAsHeldForSale
666 Fixed assets sold Concept (Monetary) As Of Debit cx:DisposalGroupFixedAssets
667 Lease term of facilities Concept (xbrli:durationItemType) For Period cx:LeaseTerm
668 Aggregate initial amount of lease Concept (Monetary) As Of Debit ifrs-full:GrossInvestmentInFinanceLease
669 Contingent revenue Concept (Monetary) For Period Credit ifrs-full:ContingentRentsRecognisedAsIncome
670 Number of geographical regions Concept (Integer) For Period cx:NumberOfGeographicalRegions
671 Geographical regions Concept (Text/String) For Period cx:GeographicalRegions
672 1068 - Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Fair Value To Assets Acquired And Liabilities Assumed (Detail) Network

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673 Disclosure of detailed information about business combination [table] Table

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674 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
675 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
676 Trinidad Cement Limited [member] Member cx:TrinidadCementLimitedMember
677 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
678 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssetsRecognisedAsOfAcquisitionDate
679 Property, machinery and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate
680 Intangible assets and other non-current assets (include goodwill of US$106) Concept (Monetary) As Of Debit ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate
681 Total assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsRecognisedAsOfAcquisitionDate
682 Current liabilities (includes debt of US$47) Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilitiesRecognisedAsOfAcquisitionDate
683 Non-current liabilities (includes debt of US$97 and deferred tax liabilities of US$19) Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate
684 Total liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesRecognisedAsOfAcquisitionDate
685 Net assets Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
686 Non-controlling interest net assets Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate
687 Controlling interest net assets Concept (Monetary) As Of Debit cx:IdentifiableAssetsAcquiredLiabilitiesAssumedLessNoncontrollingInterests
688 1069 - Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Fair Value To Assets Acquired And Liabilities Assumed (Parenthetical) (Detail) Network

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689 Disclosure of detailed information about business combination [table] Table

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690 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
691 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
692 Trinidad Cement Limited [member] Member cx:TrinidadCementLimitedMember
693 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
694 Goodwill included in intangible assets and other non-current assets Concept (Monetary) As Of Debit ifrs-full:GoodwillRecognisedAsOfAcquisitionDate
695 Debt included in current liabilities Concept (Monetary) As Of Credit cx:DebtCurrentRecognizedAsOfAcquisitionDate
696 Debt included in non-current liabilities Concept (Monetary) As Of Credit cx:DebtNoncurrentRecognizedAsOfAcquisitionDate
697 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate
698 1070 - Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Condensed Combined Information of the Statement of Operations of Discontinued Operations (Detail) Network

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699 Disclosure of discontinued operations [table] Table

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700 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
701 Continuing Operations [member] Member ifrs-full:ContinuingOperationsMember
702 Discontinued Operations [member] Member ifrs-full:DiscontinuedOperationsMember
703 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
704 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
705 Croatia [Member] Member country:HR
706 Disclosure of Discontinued Operations [line items] LineItems cx:DisclosureOfDiscontinuedOperationsLineItems
707 Sales Concept (Monetary) For Period Credit ifrs-full:Revenue
708 Cost of sales and operating expenses Concept (Monetary) For Period Debit cx:CostOfSalesAndOperatingExpensesDiscontinuedOperations
709 Other products (expenses), net Concept (Monetary) For Period Credit cx:OtherProductsExpensesNetDiscontinuedOperations
710 Financial expenses, net and others Concept (Monetary) For Period Debit cx:ExpensesDiscontinuedOperations1
711 Earnings before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
712 Income tax Concept (Monetary) For Period Debit ifrs-full:TaxExpenseRelatingToProfitLossFromOrdinaryActivitiesOfDiscontinuedOperations
713 Result of discontinued operations Concept (Monetary) For Period Credit cx:ProfitLossFromDiscontinuedOperationsAfterTax
714 Disposal result, withholding taxes and reclassification of currency translation effects Concept (Monetary) For Period Credit ifrs-full:GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation
715 Net result of discontinued operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
716 1071 - Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Combined Condensed Financial Information of Reclassification of Assets and Liabilities Held for Sale (Detail) Network

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717 Disclosure of discontinued operations [table] Table

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cx:DisclosureOfDiscontinuedOperationsTable
718 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
719 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
720 BRAZIL Member country:BR
721 Disclosure of Discontinued Operations [line items] LineItems cx:DisclosureOfDiscontinuedOperationsLineItems
722 Current assets Concept (Monetary) As Of Debit cx:CurrentAssetsDiscontinuedOperations
723 Property, machinery and equipment, net and other non-current assets Concept (Monetary) As Of Debit cx:PropertyMachineryAndEquipmentNetAndOtherNoncurrentAssets
724 Total assets held for sale Concept (Monetary) As Of Debit cx:AssetsOfDiscontinuedOperationsClassifiedAsHeldForSale
725 Current liabilities Concept (Monetary) As Of Credit cx:CurrentLiabilitiesDiscontinuedOperations
726 Non-current liabilities Concept (Monetary) As Of Credit cx:NonCurrentLiabilitiesDiscontinuedOperations
727 Total liabilities directly related to assets held for sale Concept (Monetary) As Of Credit cx:LiabilitiesOfDiscontinuedOperationsClassifiedAsHeldForSale
728 Net assets held for sale Concept (Monetary) As Of Debit cx:NetAssetsOfDiscontinuedOperationsClassifiedAsHeldForSale
729 1072 - Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Combined Statement of Operations Information of the Net Assets Sold (Detail) Network

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730 Disclosure of Discontinued Operations and Disposal Groups [table] Table

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cx:DisclosureOfDiscontinuedOperationsAndDisposalGroupsTable
731 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
732 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
733 Eagle Materials Inc And Grupo Cementos de Chihuahua SAB De C.V. [member] Member cx:EagleMaterialsIncAndGrupoCementosDeChihuahuaSABDeCVMember
734 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
735 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
736 France [member] Member country:FR
737 Disclosure Of Discontinued Operations And Disposal Groups [line items] LineItems cx:DisclosureOfDiscontinuedOperationsAndDisposalGroupsLineItems
738 Net sales Concept (Monetary) For Period Credit cx:DisposalGroupRevenue
739 Operating costs and expenses Concept (Monetary) For Period Debit cx:DisposalGroupOperatingCostsAndExpenses
740 Operating earnings (losses) before other expenses, net Concept (Monetary) For Period Credit cx:DisposalGroupOperatingEarningsLossBeforeOtherExpensesNet
741 1073 - Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Condensed Combined Financial Information of Balance Sheet (Detail) Network

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742 Disclosure of discontinued operations [table] Table

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cx:DisclosureOfDiscontinuedOperationsTable
743 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
744 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
745 France [member] Member country:FR
746 Disclosure of Discontinued Operations [line items] LineItems cx:DisclosureOfDiscontinuedOperationsLineItems
747 Current assets Concept (Monetary) As Of Debit cx:CurrentAssetsDiscontinuedOperations
748 Non-current assets Concept (Monetary) As Of Debit cx:NoncurrentAssetsDiscontinuedOperations
749 Total assets of the disposal group Concept (Monetary) As Of Debit ifrs-full:CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners
750 Current liabilities Concept (Monetary) As Of Credit cx:CurrentLiabilitiesDiscontinuedOperations
751 Non-current liabilities Concept (Monetary) As Of Credit cx:NonCurrentLiabilitiesDiscontinuedOperations
752 Total liabilities directly related to disposal group Concept (Monetary) As Of Credit ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale
753 Total net assets of disposal group Concept (Monetary) As Of Debit cx:NetAssetsLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale
754 1074 - Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Consolidating Statements of Operations by Geographic Operating Segments (Detail) Network

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755 Disclosure of operating segments [table] Table

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756 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
757 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
758 Mexico [member] Member country:MX
759 United States [member] Member country:US
760 United Kingdom [member] Member country:GB
761 France [member] Member country:FR
762 Germany [member] Member country:DE
763 Spain [member] Member country:ES
764 Poland [member] Member country:PL
765 Czech Republic [member] Member country:CZ
766 Rest of Europe [member] Member cx:RestOfEuropeMember
767 Colombia [member] Member country:CO
768 Panama [member] Member country:PA
769 Costa Rica [member] Member country:CR
770 Caribbean TCL [member] Member cx:CaribbeanMember
771 Dominican Republic [member] Member country:DO
772 Rest of South, Central America and the Caribbean [member] Member cx:RestOfSouthCentralAmericaAndTheCaribbeanMember
773 Philippines [member] Member country:PH
774 Egypt [member] Member country:EG
775 Israel [member] Member country:IL
776 Rest of Asia, Middle East and Africa [member] Member cx:RestOfAsiaMiddleEastAndAfricaMember
777 Other Locations [member] Member cx:OtherLocationsMember
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780 Discontinued Operations [member] Member ifrs-full:DiscontinuedOperationsMember
781 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
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783 Less: Intragroup transactions Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions
784 Revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
785 Operating EBITDA Concept (Monetary) For Period Credit cx:ProfitLossBeforeIncomeTaxDepreciationAndAmortisation
786 Less: Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
787 Operating earnings before other expenses, net Concept (Monetary) For Period Credit cx:OperatingEarningsLossBeforeOtherExpensesNet
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790 Other financing items, net Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncomeCost
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793 Operating EBITDA, discontinued operations Concept (Monetary) For Period Credit cx:ProfitLossBeforeIncomeTaxDepreciationAndAmortisationDiscontinuedOperations
794 Less: Depreciation and amortization, discontinued operations Concept (Monetary) For Period Debit cx:DepreciationAndAmortisationExpenseDiscontinuedOperations
795 Operating earnings before other expenses, net, discontinued operations Concept (Monetary) For Period Credit cx:DisposalGroupOperatingEarningsLossBeforeOtherExpensesNetDiscontinuedOperations
796 Other expenses, net, discontinued operations Concept (Monetary) For Period Credit cx:OtherProductsExpensesNetDiscontinuedOperations
797 Financial expense, discontinued operations Concept (Monetary) For Period Credit cx:FinanceIncomeCostDiscontinuedOperations
798 Other financing items, net, discontinued operations Concept (Monetary) For Period Credit cx:OtherFinanceIncomeCostDiscontinuedOperations
799 Revenues (including intragroup transactions), continuing and discontinued operations Concept (Monetary) For Period Credit cx:RevenueIncludingRevenueFromRelatedPartiesContinuingAndDiscontinuedOperations
800 Less: Intragroup transactions, continuing and discontinued operations Concept (Monetary) For Period Credit cx:RevenueFromSaleOfGoodsRelatedPartyTransactionsContinuingAndDiscontinuedOperations
801 Revenues, continuing and discontinued operations Concept (Monetary) For Period Credit cx:RevenueContinuingAndDiscontinuedOperations
802 Operating EBITDA, continuing and discontinued operations Concept (Monetary) For Period Credit cx:ProfitLossBeforeIncomeTaxDepreciationAndAmortisationContinuingAndDiscontinuedOperations
803 Less: Depreciation and amortization, continuing and discontinued operations Concept (Monetary) For Period Debit cx:DepreciationAndAmortisationExpenseContinuingAndDiscontinuedOperations
804 Operating earnings before other expenses, net, continuing and discontinued operations Concept (Monetary) For Period Credit cx:OperatingEarningsLossBeforeOtherExpensesNetContinuingAndDiscontinuedOperations
805 Other expenses, net, continuing and discontinued operations Concept (Monetary) For Period Credit cx:OtherOperatingIncomeExpenseContinuingAndDiscontinuedOperations
806 Financial expense, continuing and discontinued operations Concept (Monetary) For Period Credit cx:FinanceIncomeCostContinuingAndDiscontinuedOperations
807 Other financing items, net, continuing and discontinued operations Concept (Monetary) For Period Credit cx:OtherFinanceIncomeCostContinuingAndDiscontinuedOperations
808 1075 - Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Consolidating Statements of Operations by Geographic Operating Segments (Parenthetical) (Detail) Network

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809 Disclosure of operating segments [table] Table

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811 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
812 CEMEX Latam Holdings, S.A. [member] Member cx:CEMEXLatamHoldingsSAMember
813 CEMEX Holdings Philippines, Inc. [member] Member cx:CEMEXHoldingsPhilippinesIncMember
814 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
815 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
816 Caribbean TCL [member] Member cx:CaribbeanMember
817 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
818 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
819 Trinidad Cement Limited [member] Member cx:TrinidadCementLimitedMember
820 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
821 Non-controlling interest ownership percentage Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
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823 Disclosure of operating segments [table] Table

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825 Assets [member] Member ifrs-full:ClassesOfAssetsMember
826 Equity accounted investment [member] Member ifrs-full:InvestmentsAccountedForUsingEquityMethodMember
827 All other assets [member] Member ifrs-full:OtherAssetsMember
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830 Continuing operation [member] Member cx:ContinuingOperationMember
831 Disposal groups classified as held for sale [member] Member ifrs-full:DisposalGroupsClassifiedAsHeldForSaleMember
832 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
833 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
834 Mexico [member] Member country:MX
835 United States [member] Member country:US
836 United Kingdom [member] Member country:GB
837 France [member] Member country:FR
838 Germany [member] Member country:DE
839 Spain [member] Member country:ES
840 Poland [member] Member country:PL
841 Czech Republic [member] Member country:CZ
842 Rest of Europe [member] Member cx:RestOfEuropeMember
843 Colombia [member] Member country:CO
844 Panama [member] Member country:PA
845 Costa Rica [member] Member country:CR
846 Caribbean TCL [member] Member cx:CaribbeanMember
847 Dominican Republic [member] Member country:DO
848 Rest of South, Central America and the Caribbean [member] Member cx:RestOfSouthCentralAmericaAndTheCaribbeanMember
849 Philippines [member] Member country:PH
850 Egypt [member] Member country:EG
851 Israel [member] Member country:IL
852 Rest of Asia, Middle East and Africa [member] Member cx:RestOfAsiaMiddleEastAndAfricaMember
853 Other Locations [member] Member cx:OtherLocationsMember
854 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
855 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
856 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
857 Net assets by segment Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
858 Additions to fixed assets Concept (Monetary) As Of Debit cx:FixedAssetsAdditions
859 1077 - Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Balance sheet Information by Geographic Segment (Parenthetical) (Detail) Network

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860 Implied Table Table

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861 Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Balance sheet Information by Geographic Segment [Abstract] Abstract cx:DisclosureBusinessCombinationsDiscontinuedOperationsSaleOfOtherDisposalGroupsAndSelectedFinancialInformationByReportableSegmentAndLineOfBusinessSummaryOfBalanceSheetInformatio_XaAbstract
862 Capital expenditure incurred Concept (Monetary) For Period Debit cx:CapitalExpendituresIncreaseDecreasePropertyPlantAndEquipment
863 1078 - Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Net Sales by Product and Geographic Segment (Detail) Network

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864 Disclosure of geographical areas [table] Table

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865 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
866 Entitys Total Amount for Segment Consolidation Items [Member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
867 Operating segments [member] Member ifrs-full:OperatingSegmentsMember
868 Elimination of intersegment amounts [member] Member ifrs-full:EliminationOfIntersegmentAmountsMember
869 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
870 Products and services [member] Member ifrs-full:ProductsAndServicesMember
871 Cement segment [member] Member cx:CementSegmentMember
872 Concrete segment [member] Member cx:ConcreteSegmentMember
873 Aggregates segment [member] Member cx:AggregatesSegmentMember
874 All other segments [member] Member ifrs-full:AllOtherSegmentsMember
875 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
876 Continuing Operations [member] Member ifrs-full:ContinuingOperationsMember
877 Discontinued Operations [member] Member ifrs-full:DiscontinuedOperationsMember
878 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
879 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
880 Mexico [member] Member country:MX
881 United States [member] Member country:US
882 United Kingdom [member] Member country:GB
883 France [member] Member country:FR
884 Germany [member] Member country:DE
885 Spain [member] Member country:ES
886 Poland [member] Member country:PL
887 Czech Republic [member] Member country:CZ
888 Rest of Europe [member] Member cx:RestOfEuropeMember
889 Colombia [member] Member country:CO
890 Panama [member] Member country:PA
891 Costa Rica [member] Member country:CR
892 Caribbean TCL [member] Member cx:CaribbeanMember
893 Dominican Republic [member] Member country:DO
894 Rest of South, Central America and the Caribbean [member] Member cx:RestOfSouthCentralAmericaAndTheCaribbeanMember
895 Philippines [member] Member country:PH
896 Egypt [member] Member country:EG
897 Israel [member] Member country:IL
898 Rest of Asia, Middle East and Africa [member] Member cx:RestOfAsiaMiddleEastAndAfricaMember
899 Other Locations [member] Member cx:OtherLocationsMember
900 Disclosure of geographical areas [line items] LineItems ifrs-full:DisclosureOfGeographicalAreasLineItems
901 Revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
902 Net sales, continuing and discontinued operations Concept (Monetary) For Period Credit cx:RevenueContinuingAndDiscontinuedOperations
903 1079 - Disclosure - Operating Expenses, Depreciation and Amortization - Summary of Consolidated Operating Expense (Detail) Network

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904 Implied Table Table

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906 Administrative expenses Concept (Monetary) For Period Debit ifrs-full:AdministrativeExpense
907 Selling expenses Concept (Monetary) For Period Debit ifrs-full:SalesAndMarketingExpense
908 Distribution and logistics expenses Concept (Monetary) For Period Debit ifrs-full:DistributionCosts
909 Operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
910 1080 - Disclosure - Operating Expenses, Depreciation and Amortization - Summary of Consolidated Operating Expense (Parenthetical) (Detail) Network

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911 Operating Expense [table] Table

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912 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
913 Products and services [member] Member ifrs-full:ProductsAndServicesMember
914 R&D activities by internal areas [member] Member cx:ResearchAndDevelopmentActivitiesByInternalAreasMember
915 Operating Expense [Line items] LineItems cx:OperatingExpenseLineItems
916 Administrative expenses Concept (Monetary) For Period Debit ifrs-full:AdministrativeExpense
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918 Implied Table Table

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919 Depreciation and amortisation expense [abstract] Abstract ifrs-full:DepreciationAndAmortisationExpenseAbstract
920 Depreciation and amortization expense included in cost of sales Concept (Monetary) For Period Debit cx:DepreciationAndAmortizationExpenseIncludedInCostOfSales
921 Depreciation and amortization expense included in administrative, selling and distribution and logistics expenses Concept (Monetary) For Period Debit cx:DepreciationAndAmortizationExpenseIncludedInAdministrativeSellingAndDistributionAndLogisticsExpenses
922 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
923 1082 - Disclosure - Other Expenses, Net - Summary of Other Expenses (Detail) Network

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924 Implied Table Table

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925 Material income and expense [abstract] Abstract ifrs-full:MaterialIncomeAndExpenseAbstract
926 Results from the sale of assets and others, net Concept (Monetary) For Period Debit cx:ResultsFromSaleOfAssetsAndOthersNet
927 Restructuring costs Concept (Monetary) For Period Debit ifrs-full:ExpenseOfRestructuringActivities
928 Impairment losses and remeasurement of assets held for sale Concept (Monetary) For Period Debit cx:ImpairmentLossesAndRemeasurementOfAssetsHeldForSale
929 Remeasurement of pension liabilities Concept (Monetary) For Period Debit cx:RemeasurementOfPensionLiabilities
930 Charitable contributions Concept (Monetary) For Period Debit cx:CharitableContributions
931 Other expenses, net Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
932 1083 - Disclosure - Other Expenses, Net - Summary of Other Expenses (Parenthetical) (Detail) Network

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933 Implied Table Table

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935 Income tax penalty imposed Concept (Monetary) For Period Debit cx:FinesAndPenaltyExpense
936 Property damages and natural disasters Concept (Monetary) For Period Debit cx:PropertyDamagesAndNaturalDisasters
937 Impairment losses of fixed assets Concept (Monetary) For Period Debit cx:ImpairmentLossOnFixedAssets
938 Impairment losses of goodwill Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossGoodwill
939 Loss on valuation of assets held for sale Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading
940 1084 - Disclosure - Financial Income and Other Items, Net - Summary of Financial Income and Other Items (Detail) Network

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941 Implied Table Table

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942 Material income and expense [abstract] Abstract ifrs-full:MaterialIncomeAndExpenseAbstract
943 Results in the sale of associates and remeasurement of previously held interest before change in control of associates (notes 4.1 and 13.1) Concept (Monetary) For Period Debit cx:EffectOfSaleOfAssociatesAndRemeasurementOfPreviouslyHeldInterestBeforeChangeInControlOfAssociates
944 Financial income Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncome
945 Results from financial instruments, net (notes 13.2 and 16.4) Concept (Monetary) For Period ifrs-full:ChangesInFairValueOfFinancialAssetsRelatedCreditDerivativesOrSimilarInstruments
946 Foreign exchange results Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
947 Effects of amortized cost on assets and liabilities and others, net Concept (Monetary) For Period Credit cx:EffectsOfAmortizedCostOnAssetsAndLiabilitiesAndOther
948 Other financial income (expense), net Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncomeCost
949 1085 - Disclosure - Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Detail) Network

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950 Implied Table Table

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951 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
952 Cash and bank accounts Concept (Monetary) As Of Debit ifrs-full:Cash
953 Fixed-income securities and other cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashEquivalents
954 Consolidated cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
955 1086 - Disclosure - Cash and Cash Equivalents - Addition Information (Detail) Network

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956 Implied Table Table

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957 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
958 Deposits in margin accounts guarantees several obligations Concept (Monetary) For Period Credit cx:DepositsInMarginAccountsGuaranteesSeveralObligations
959 1087 - Disclosure - Trade Accounts Receivable, Net - Summary of Trade Accounts Receivable (Detail) Network

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960 Implied Table Table

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961 Trade and other receivables [abstract] Abstract ifrs-full:TradeAndOtherReceivablesAbstract
962 Trade accounts receivable Concept (Monetary) As Of Debit cx:TradeAndOtherCurrentReceivablesGross
963 Allowances for expected credit losses Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
964 Trade receivables Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
965 1088 - Disclosure - Trade Accounts Receivable, Net - Additional Information (Detail) Network

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966 Disclosure Of Trade Accounts Receivable [table] Table

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967 Investment [Axis] Axis invest:InvestmentAxis
968 Investment [Domain] Member invest:InvestmentDomain
969 Securitization programs [member] Member cx:SecuritizationProgramsMember
970 Disclosure Of Trade Accounts Receivable [line items] LineItems cx:DisclosureOfTradeAccountsReceivableLineItems
971 Receivables Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
972 Other financial obligations Concept (Monetary) As Of Credit ifrs-full:OtherCurrentFinancialLiabilities
973 Financial expense Concept (Monetary) For Period Debit cx:FinancialExpenses
974 Estimated credit loss rate increase description Concept (Text/String) For Period cx:EstimatedCreditLossRateIncreaseDescription
975 1089 - Disclosure - Trade Accounts Receivable, Net - Summary of Trade Accounts Receivable and Allowance for Expected Credit Loss (Detail) Network

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976 Trade accounts receivables and allowance for expected credit loss [table] Table

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978 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
979 Mexico [member] Member country:MX
980 United States [member] Member country:US
981 Europe [member] Member srt:EuropeMember
982 South, Central America And Caribbean [member] Member cx:SouthCentralAmericaAndCaribbeanMember
983 Asia, Middle East and Africa [member] Member cx:AsiaMiddleEastAndAfricaMember
984 Other country [member] Member cx:OtherCountryMember
985 Trade Accounts Receivables And Allowance For Expected Credit Loss [line items] LineItems cx:TradeAccountsReceivablesAndAllowanceForExpectedCreditLossLineItems
986 Accounts receivable Concept (Monetary) As Of Debit cx:TradeAndOtherCurrentReceivablesGross
987 ECL allowance Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
988 ECL average rate Concept (Percent) As Of ifrs-full:ExpectedCreditLossRate
989 1090 - Disclosure - Trade Accounts Receivable, Net - Summary of Allowance for Expected Credit Losses (Detail) Network

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990 Implied Table Table

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991 Disclosure of financial assets [abstract] Abstract ifrs-full:DisclosureOfFinancialAssetsAbstract
992 Allowances for expected credit losses at beginning of period Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
993 Adoption effects of IFRS 9 charged to retained earnings Concept (Monetary) For Period Credit cx:AdoptionEffectsOfIfrs9ChargedToRetainedEarnings
994 Charged to selling expenses Concept (Monetary) For Period ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
995 Additions through business combinations Concept (Monetary) For Period Credit cx:AdditionsThoughBusinessCombinationsAllowanceAccountForCreditLossesOfFinancialAssets
996 Deductions Concept (Monetary) For Period Debit ifrs-full:UtilisationAllowanceAccountForCreditLossesOfFinancialAssets
997 Foreign currency translation effects Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets
998 Allowances for expected credit losses at end of period Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
999 1091 - Disclosure - Other Accounts Receivable - Summary of Consolidated Other Accounts Receivable (Detail) Network

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1000 Implied Table Table

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1001 Miscellaneous current assets [abstract] Abstract ifrs-full:MiscellaneousCurrentAssetsAbstract
1002 Non-trade accounts receivable Concept (Monetary) As Of Debit cx:CurrentNonTradeAccountsReceivable
1003 Interest and notes receivable Concept (Monetary) As Of Debit cx:CurrentInterestAndNotesReceivable
1004 Current portion of valuation of derivative financial instruments Concept (Monetary) As Of Debit ifrs-full:CurrentDerivativeFinancialAssets
1005 Loans to employees and others Concept (Monetary) As Of Debit ifrs-full:CurrentLoansAndReceivables
1006 Refundable taxes Concept (Monetary) As Of Debit ifrs-full:CurrentReceivablesFromTaxesOtherThanIncomeTax
1007 Other accounts receivable Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
1008 1092 - Disclosure - Other Accounts Receivable - Summary of Consolidated Other Accounts Receivable (Parenthetical) (Detail) Network

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1009 Other Accounts Receivables [table] Table

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1010 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1011 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1012 CEMEX Colombia S.A [member] Member cx:CEMEXColombiaSAMember
1013 Other Accounts Receivables [line items] LineItems cx:OtherAccountsReceivablesLineItems
1014 Bank credit Concept (Monetary) As Of Credit ifrs-full:SecuredBankLoansReceived
1015 Debt repayment description Concept (Text/String) For Period cx:LongTermDebtRepaymentDescription
1016 Percentage Threshold Of Debt Repayment Concept (Percent) As Of cx:PercentageThresholdOfDebtRepayment
1017 1093 - Disclosure - Inventories, Net - Summary of Consolidated Balance of Inventories (Detail) Network

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1018 Implied Table Table

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1021 Work-in-process Concept (Monetary) As Of Debit ifrs-full:WorkInProgress
1022 Raw materials Concept (Monetary) As Of Debit ifrs-full:RawMaterials
1023 Materials and spare parts Concept (Monetary) As Of Debit ifrs-full:SpareParts
1024 Inventory in transit Concept (Monetary) As Of Debit cx:InventoriesInTransit
1025 Current inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
1026 1094 - Disclosure - Inventories, Net - Additional Information (Detail) Network

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1027 Implied Table Table

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1030 1095 - Disclosure - Assets Held For Sale and Other Current Assets - Summary of Assets and liabilities Held for Sale (Detail) Network

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1031 Asset held for sale and discontinued operations [table] Table

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1032 Assets and liabilities classified as held for sale [axis] Axis ifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis
1033 Assets and liabilities not classified as held for sale [member] Member ifrs-full:AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember
1034 Assets in the central region of France [member] Member cx:AssetsInTheCentralRegionOfFranceMember
1035 Idle assets in Spain [member] Member cx:IdleAssetsInSpainMember
1036 Other assets held for sale [member] Member cx:OtherAssetsHeldForSaleTwoMember
1037 Asset held for sale and discontinued operations [line items] LineItems cx:AssetHeldForSaleAndDiscontinuedOperationsLineItems
1038 Assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners
1039 Liabilities Concept (Monetary) As Of Credit ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale
1040 Net assets Concept (Monetary) As Of Debit cx:NetAssetsLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale
1041 1096 - Disclosure - Assets Held For Sale and Other Current Assets - Additional Information (Detail) Network

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1042 Asset held for sale and discontinued operations [table] Table

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1044 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1045 CEMEX Colombia S.A [member] Member cx:CEMEXColombiaSAMember
1046 Asset held for sale and discontinued operations [line items] LineItems cx:AssetHeldForSaleAndDiscontinuedOperationsLineItems
1047 Cash Concept (Monetary) As Of Debit ifrs-full:Cash
1048 Commercial dispute claim amount Concept (Monetary) As Of Credit ifrs-full:LegalProceedingsProvision
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1052 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1053 Camcem [member] Member cx:CamcemSADeCVMember
1054 Concrete Supply Co. LLC [member] Member cx:ConcreteSupplyCoLLCMember
1055 Lehigh White Cement Company [member] Member cx:LehighWhiteCementCompanyMember
1056 Akmenes Cementas AB [member] Member cx:AkmenesCementasABMember
1057 ABC Capital, S.A. Institucion de Banca Multiple [member] Member cx:AbcCapitalSAInstitucionDeBancaMultipleMember
1058 Societe Meridionale de Carrieres [member] Member cx:SocieteMeridionaleDeCarrieresMember
1059 Societe d Exploitation de Carrieres [member] Member cx:SocieteDExploitationDeCarrieresMember
1060 Cemento Interocenico Sa [member] Member cx:CementoInterocenicoSaMember
1061 Other companies [member] Member cx:OtherCompaniesMember
1062 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1063 Name of associate Concept (Text/String) For Period ifrs-full:NameOfAssociate
1064 Activity Concept (Text/String) For Period cx:DescriptionOfActivityOfAssociate
1065 Country Concept (Text/String) For Period ifrs-full:CountryOfIncorporationOrResidenceOfAssociate
1066 Investment, percentage Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
1067 Investments Concept (Monetary) As Of Debit ifrs-full:InvestmentAccountedForUsingEquityMethod
1068 Book value at acquisition date Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociates
1069 Changes in stockholders' equity Concept (Monetary) For Period Credit cx:IncreaseDecreaseInInvestmentsInAssociatesAccountedForUsingEquityMethod
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1071 Disclosure of detailed information about financial instruments [table] Table

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1073 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1074 GCC [member] Member cx:GrupoCementosDeChihuahuaSABDeCVMember
1075 Camcem [member] Member cx:CamcemSADeCVMember
1076 ABC Capital, S.A. Institucion de Banca Multiple [member] Member cx:AbcCapitalSAInstitucionDeBancaMultipleMember
1077 Lehigh White Cement Company [member] Member cx:LehighWhiteCementCompanyMember
1078 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
1079 Continuing Operations [member] Member ifrs-full:ContinuingOperationsMember
1080 Disposal groups classified as held for sale [member] Member ifrs-full:DisposalGroupsClassifiedAsHeldForSaleMember
1081 Assets and liabilities classified as held for sale [axis] Axis ifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis
1082 Assets and liabilities not classified as held for sale [member] Member ifrs-full:AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember
1083 Private Placements Offering [member] Member cx:PrivatePlacementsOfferingMember
1084 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1085 Ownership percentage Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
1086 Proceeds from sale of common stock Concept (Monetary) For Period Debit cx:ProceedsFromDisposalOfDiscontinuedOperations
1087 Gain (loss) on sale of business Concept (Monetary) For Period Credit ifrs-full:GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation
1088 Equity method investment, additional investment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod
1089 Number of shares issued Concept (Decimal) As Of ifrs-full:NumberOfInstrumentsOrInterestsIssuedOrIssuable
1090 Number of shares sold Concept (Shares) As Of cx:NumberOfSharesDisposed
1091 Share price Concept (Monetary) For Period ifrs-full:WeightedAverageSharePrice
1092 Proceeds from sale Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations
1093 1099 - Disclosure - Equity Accounted Investees, Other Investments and Non-Current Accounts Receivable - Summary of Combined Condensed Statement of Financial Position (Detail) Network

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1094 Disclosure of associates [table] Table

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1096 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1097 Associates [member] Member ifrs-full:AssociatesMember
1098 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1099 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
1100 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
1101 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
1102 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
1103 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
1104 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
1105 Total net assets Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
1106 1100 - Disclosure - Equity Accounted Investees, Other Investments and Non-Current Accounts Receivable - Summary of Combined Selected Information of the Statements of Operations (Detail) Network

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1107 Disclosure of associates [table] Table

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1109 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1110 Associates [member] Member ifrs-full:AssociatesMember
1111 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1112 Sales Concept (Monetary) For Period Credit ifrs-full:Revenue
1113 Operating earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
1114 Income before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
1115 Net income Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1116 1101 - Disclosure - Equity Accounted Investees, Other Investments and Non-Current Accounts Receivable - Summary of Share of Profit of Equity Accounted Investees by Reportable Segment (Detail) Network

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1117 Disclosure of associates [table] Table

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1119 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1120 Mexico [member] Member country:MX
1121 United States [member] Member country:US
1122 Europe [member] Member srt:EuropeMember
1123 Corporate and other [member] Member cx:CorporateAndOtherMember
1124 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1125 Share of profit of equity accounted investees Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
1126 1102 - Disclosure - Equity Accounted Investees, Other Investments and Non-Current Accounts Receivable - Summary of Other Investments and Non-current Accounts Receivable (Detail) Network

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1127 Implied Table Table

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1128 Miscellaneous non-current assets [abstract] Abstract ifrs-full:MiscellaneousNoncurrentAssetsAbstract
1129 Non-current accounts receivable Concept (Monetary) As Of Debit ifrs-full:NoncurrentReceivables
1130 Investments at fair value through the income statement Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss
1131 Non-current portion of valuation of derivative financial instruments Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
1132 Investments in strategic equity securities Concept (Monetary) As Of Debit ifrs-full:NoncurrentInvestmentsInEquityInstrumentsDesignatedAtFairValueThroughOtherComprehensiveIncome
1133 Other investments and non-current accounts receivable Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssets
1134 1103 - Disclosure - Equity Accounted Investees, Other Investments and Non-Current Accounts Receivable - Summary of Other Investments and Non-current Accounts Receivable (Parenthetical) (Detail) Network

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1135 Implied Table Table

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1137 Accounts receivable from investees and joint ventures Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties
1138 Advances to suppliers of fixed assets Concept (Monetary) As Of Debit cx:AdvancesToSuppliersOfFixedAssets
1139 Employee prepaid compensation Concept (Monetary) As Of Debit cx:PrepaidPensionBenefitCost
1140 Refundable taxes Concept (Monetary) As Of Debit ifrs-full:NoncurrentReceivablesFromTaxesOtherThanIncomeTax
1141 Warranty deposits Concept (Monetary) As Of Debit ifrs-full:LongtermDeposits
1142 1104 - Disclosure - Property, Machinery and Equipment, Net - Disclosure of Net Change in Property, Machinery and Equipment (Detail) Network

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1143 Disclosure of detailed information about property, plant and equipment [table] Table

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1144 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
1145 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1146 Land and mineral reserves [member] Member cx:LandAndMineralReservesMember
1147 Building [member] Member ifrs-full:BuildingsMember
1148 Machinery and equipment [member] Member ifrs-full:MachineryMember
1149 Construction in progress [member] Member ifrs-full:ConstructionInProgressMember
1150 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1151 Carrying Amount [Member] Member ifrs-full:CarryingAmountMember
1152 Cost [member] Member ifrs-full:GrossCarryingAmountMember
1153 Accumulated depreciation and depletion [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
1154 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
1155 Net book value at beginning of period Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1156 Capital expenditures Concept (Monetary) For Period Debit cx:CapitalExpendituresIncreaseDecreasePropertyPlantAndEquipment
1157 Additions through capital leases Concept (Monetary) For Period Debit cx:CapitalLeasesIncreaseDecreasePropertyPlantAndEquipment
1158 Capitalization of financial expense Concept (Monetary) For Period Debit cx:CapitalizationOfFinancialExpenseIncreaseDecreasePropertyPlantAndEquipment
1159 Stripping costs Concept (Monetary) For Period Debit cx:StrippingCostsIncreaseDecreasePropertyPlantAndEquipment
1160 Total capital expenditures Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
1161 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
1162 Reclassifications Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
1163 Business combinations Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment
1164 Depreciation and depletion for the period Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
1165 Impairment losses Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
1166 Foreign currency translation effects Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
1167 Net book value at end of period Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1168 1105 - Disclosure - Property, Machinery and Equipment, Net - Disclosure of Net Change in Property, Machinery and Equipment (Parenthetical) (Detail) Network

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1169 Disclosure of detailed information about property, plant and equipment [table] Table

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1171 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1172 Construction in progress [member] Member ifrs-full:ConstructionInProgressMember
1173 Mobile equipment [member] Member ifrs-full:CommunicationAndNetworkEquipmentMember
1174 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
1175 Continuing Operations [member] Member ifrs-full:ContinuingOperationsMember
1176 Pacific Northwest Materials Business [member] Member cx:PacificNorthwestMaterialsBusinessMember
1177 Concrete Pipe Business Segment [member] Member cx:ConcretePipeBusinessSegmentMember
1178 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1179 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1180 Colombia [member] Member country:CO
1181 Mexico [member] Member country:MX
1182 United States [member] Member country:US
1183 Spain [member] Member country:ES
1184 France [member] Member country:FR
1185 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
1186 Carrying amount of assets through leased back Concept (Monetary) As Of Debit cx:LandAndBuildingAcquiredThroughLeasedBack
1187 Carrying amount of assets acquired through capital lease Concept (Monetary) As Of Debit cx:PropertyPlantAndEquipmentAcquiredThroughCapitalLeases
1188 Annual production capacity Concept (num:massItemType) For Period cx:AnnualProductionCapacity
1189 Reduction in investment Concept (Monetary) For Period Debit ifrs-full:ChangesInInvestmentProperty
1190 Impairment loss recognized in other expenses, net Concept (Monetary) For Period Debit cx:ImpairmentLossRecognisedInOtherExpensesNet
1191 Other accounts payable Concept (Monetary) As Of Credit cx:IncreaseDecreaseInOtherAccountsPayable1
1192 Net book value of adjustment in investment property Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty
1193 Sale of fixed assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets
1194 Reclassifications Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
1195 Assets available for sale Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAvailableforsale
1196 1106 - Disclosure - Property, Machinery and Equipment, Net - Summary of Recognized Impairment Losses (Detail) Network

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1197 Disclosure of impairment loss and reversal of impairment loss [table] Table

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1199 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1200 United States [member] Member country:US
1201 Poland [member] Member country:PL
1202 Colombia [member] Member country:CO
1203 Spain [member] Member country:ES
1204 Mexico [member] Member country:MX
1205 Czech Republic [member] Member country:CZ
1206 Panama [member] Member country:PA
1207 France [member] Member country:FR
1208 Latvia [member] Member country:LV
1209 Puerto Rico [member] Member country:PR
1210 Other countries [member] Member cx:OtherCountriesMember
1211 Disclosure of impairment loss and reversal of impairment loss [line items] LineItems ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems
1212 Impairment losses Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
1213 1107 - Disclosure - Goodwill and Intangible Assets, Net - Summary of Consolidated Goodwill, Intangible Assets and Deferred Charges (Detail) Network

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1214 Disclosure of reconciliation of changes in intangible assets and goodwill [table] Table

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1215 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1216 Carrying Amount [Member] Member ifrs-full:CarryingAmountMember
1217 Cost [member] Member ifrs-full:GrossCarryingAmountMember
1218 Accumulated Depreciation, amortization and Impairment [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
1219 Classes of intangible assets and goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
1220 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
1221 Goodwill [member] Member ifrs-full:GoodwillMember
1222 Extraction rights [member] Member ifrs-full:IntangibleExplorationAndEvaluationAssetsMember
1223 Industrial property and trademarks [member] Member ifrs-full:BrandNamesMember
1224 Customer relationships [member] Member ifrs-full:CustomerrelatedIntangibleAssetsMember
1225 Mining projects [member] Member ifrs-full:MiningRightsMember
1226 Others intangible assets [Member] Member ifrs-full:OtherIntangibleAssetsMember
1227 Disclosure of reconciliation of changes in intangible assets and goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems
1228 Intangible assets and goodwill Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
1229 1108 - Disclosure - Goodwill and Intangible Assets, Net - Additional Information (Detail) Network

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1230 Disclosure of detailed information about intangible assets [table] Table

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1232 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
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1236 Top of range [member] Member ifrs-full:TopOfRangeMember
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1238 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
1239 Amortization of intangible assets of definite useful life recognized within operating costs and expenses Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
1240 Amount of net book value in excess of net present value of projected cash flows Concept (Monetary) For Period Debit cx:AmountOfNetBookValueInExcessOfNetPresentValueOfProjectedCashFlows
1241 Funding cost percentage Concept (Percent) For Period cx:FundingCostPercentage
1242 Risk free rate Concept (Percent) For Period cx:RiskFreeRate
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1244 Increase in pre-tax discount rate Concept (Percent) For Period cx:IncreaseDecreaseInPreTaxDiscountRate
1245 Decrease in long-term growth rate Concept (Percent) For Period cx:IncreaseDecreaseInLongTermGrowthRate
1246 Weighted average Operating EBITDA multiple Concept (Pure) For Period cx:IndustryWeightedAverageOperatingEBITDAMultiple
1247 Lowest multiple Concept (Pure) For Period cx:LowestEBITDAMultiple
1248 Highest multiple Concept (Pure) For Period cx:HighestEBITDAMultiple
1249 Percentage of goodwill allocated Concept (Percent) For Period cx:PercentageOfGoodwillAllocated
1250 Percentage of increases in ready-mix concrete volumes Concept (Percent) For Period cx:PercentageOfIncreasesInReadyMixConcreteVolumes
1251 Percentage of increases in ready-mix concrete prices Concept (Percent) For Period cx:PercentageOfIncreasesInReadyMixConcretePrices
1252 Percentage of decreases in ready-mix concrete volumes Concept (Percent) For Period cx:PercentageOfDecreasesInReadyMixConcreteVolumes
1253 1109 - Disclosure - Goodwill and Intangible Assets, Net - Summary of Changes in Consolidated goodwill (Detail) Network

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1254 Implied Table Table

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1256 Balance at beginning of period Concept (Monetary) As Of Debit ifrs-full:Goodwill
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1258 Disposals, net (note 4.3) Concept (Monetary) For Period Credit ifrs-full:DecreaseThroughClassifiedAsHeldForSaleGoodwill
1259 Reclassification to assets held for sale and other current assets (notes 4.2, 4.3 and 12) Concept (Monetary) For Period Credit ifrs-full:GoodwillDerecognisedWithoutHavingPreviouslyBeenIncludedInDisposalGroupClassifiedAsHeldForSale
1260 Impairment losses Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossGoodwill
1261 Foreign currency translation effects Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesGoodwill
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1263 1110 - Disclosure - Goodwill and Intangible Assets, Net - Summary of Changes in intangible Asset (Detail) Network

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1264 Disclosure of reconciliation of changes in intangible assets and goodwill [table] Table

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1268 Industrial property and trademarks [member] Member ifrs-full:BrandNamesMember
1269 Customer relationships [member] Member ifrs-full:CustomerrelatedIntangibleAssetsMember
1270 Mining projects [member] Member ifrs-full:MiningRightsMember
1271 Others intangible assets [Member] Member ifrs-full:OtherIntangibleAssetsMember
1272 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
1273 Balance at beginning of period Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
1274 Additions (disposals), net Concept (Monetary) For Period Debit ifrs-full:ChangesInIntangibleAssetsOtherThanGoodwill
1275 Business combinations (note 4.1) Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
1276 Reclassifications (notes 4.1, 4.2 and 12) Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesIntangibleAssetsOtherThanGoodwill
1277 Amortization for the period Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
1278 Impairment losses Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill
1279 Foreign currency translation effects Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill
1280 Balance at the end of period Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
1281 1111 - Disclosure - Goodwill and Intangible Assets, Net - Summary of Changes in intangible Asset (Parenthetical) (Detail) Network

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1282 Disclosure of reconciliation of changes in intangible assets and goodwill [table] Table

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1289 1112 - Disclosure - Goodwill and Intangible Assets, Net - Summary of Goodwill Balances Allocated by Operating Segment (Detail) Network

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1290 Disclosure of reconciliation of changes in intangible assets and goodwill [table] Table

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1457 1120 - Disclosure - Financial Instruments - Schedule of Consolidated Long-Term Debt (Detail) Network

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1542 1125 - Disclosure - Financial Instruments - Summary of Consolidated Financial Ratios (Detail) Network

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1554 1126 - Disclosure - Financial Instruments - Summary of Other Financial Obligations (Detail) Network

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1591 Conversion rate per dollars Concept (Decimal) As Of cx:ConversionRatePerDollar
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1593 Debt instrument maturity date Concept (Year/Month) For Period cx:BorrowingsMaturityMonthYear
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1595 Issuance of ADS Concept (Shares) As Of cx:NumberOfSharesRepresentedByIssuedAmericanDepositaryShares
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1597 Increase common stock value Concept (Monetary) For Period Credit cx:IncreaseInCommonStock
1598 Additional paid-in capital Concept (Monetary) As Of Credit ifrs-full:AdditionalPaidinCapital
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1600 Repayment of debt Concept (Monetary) For Period Credit cx:RepaymentOfDebtPrincipalAmount
1601 Rate required for converting the note per CPO Concept (Share) For Period cx:MinimumRateRequiredToConvertNotes
1602 Nominal value of securities converted Concept (Monetary) As Of Credit cx:NominalValueOfSecuritiesConverted
1603 1128 - Disclosure - Financial Instruments - Summary of Carrying Amounts and Fair Value of Financial Instruments (Detail) Network

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1604 Disclosure Of Financial Assets and Financial Liabilities [table] Table

*

*

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1615 Other financial obligations Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentFinancialLiabilities
1616 Derivative instruments Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
1617 Total financial liabilities Concept (Monetary) As Of Credit cx:BorrowingsAndOtherFinancialLiabilities
1618 1129 - Disclosure - Financial Instruments - Summary of Fair Value of Derivative Financial Instruments at Fair Value Hierarchy (Detail) Network

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1619 Disclosure Of Financial Assets and Financial Liabilities [table] Table

*

*

cx:DisclosureOfFinancialAssetsAndFinancialLiabilitiesTable
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1627 Investments in strategic equity securities Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAtFairValueThroughProfitOrLossMeasuredAsSuchInAccordanceWithExemptionForReacquisitionOfOwnEquityInstruments
1628 Other investments at fair value through earnings Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss
1629 Total derivative financial assets Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
1630 Liabilities measured at fair value Derivative instruments Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
1631 1130 - Disclosure - Financial Instruments - Summary of Derivative Financial Instruments (Detail) Network

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1632 Disclosure of detailed information about financial instruments [table] Table

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1644 1131 - Disclosure - Financial Instruments - Additional Information - Derivative Financial Instruments (Detail) Network

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*

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1667 Continuing involvement in derecognised financial assets by type of instrument [axis] Axis ifrs-full:ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis
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1680 Average contract life of foreign exchange forward program Concept (xbrli:durationItemType) For Period cx:AverageContractLifeOfForeignExchangeForwardProgram
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1682 Net foreign exchange gain Concept (Monetary) For Period Credit ifrs-full:NetForeignExchangeGain
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1689 Financial assets at estimated fair value Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValue
1690 Borrowings, interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1691 Increase (decrease) through conversion of convertible instruments, equity Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughConversionOfConvertibleInstruments
1692 Financial assets at fair value through profit or loss, mandatorily measured at fair value Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue
1693 Call capped transaction subject to antidilution adjustments, Shares Concept (Shares) As Of cx:IncreaseInVariableCommonStockIssuedToPreserveAntidilutiveRightsOfNoteHolders
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1696 Amount received by CEMEX Concept (Monetary) As Of Credit ifrs-full:PricesSpecifiedInForwardAgreementsToPurchaseFinancialAssetsForCash
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1698 1132 - Disclosure - Financial Instruments - Additional Information - Risk Management (Detail) Network

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1711 Germany [member] Member country:DE
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1713 Poland [member] Member country:PL
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1717 Costa Rica [member] Member country:CR
1718 Panama [member] Member country:PA
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1743 Pounds [member] Member currency:GBP
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1748 Borrowings, adjustment to interest rate basis Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
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1753 Foreign currency translation Concept (Monetary) For Period Debit cx:ForeignCurrencyTranslationAdjustment
1754 Decrease in net income due to change in the fair value Concept (Monetary) For Period Credit ifrs-full:DecreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssets
1755 Hypothetical market price percentage Concept (Percent) For Period cx:HypotheticalMarketPricePercentage
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1757 Other financial obligations Concept (Monetary) As Of Credit ifrs-full:OtherCurrentFinancialLiabilities
1758 Cash flows provided by operating activities from continuing operations Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInOperatingActivitiesContinuingOperations
1759 Revolving credit facility Concept (Monetary) As Of Credit cx:RevolvingCreditFacility
1760 1133 - Disclosure - Financial Instruments - Summary of Consolidated Net Monetary Assets (Liabilities) by Currency (Detail) Network

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1761 Disclosure of detailed information about financial instruments [table] Table

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1780 Net monetary assets (liabilities) Concept (Monetary) As Of Debit cx:NetFinancialAssetsLiabilities
1781 1134 - Disclosure - Other Current and Non-current Liabilities - Summary of Other Current Liabilities (Detail) Network

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1782 Implied Table Table

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1786 Advances from customers Concept (Monetary) As Of Credit ifrs-full:CurrentAdvances
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1790 1135 - Disclosure - Other Current and Non-current Liabilities - Summary of Other Current Liabilities (Parenthetical) (Detail) Network

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1791 Implied Table Table

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1794 1136 - Disclosure - Other Current and Non-current Liabilities - Summary of Other Non-current Liabilities (Detail) Network

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1795 Implied Table Table

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1798 Accruals for legal assessments and other responsibilities Concept (Monetary) As Of Credit ifrs-full:Accruals
1799 Non-current liabilities for valuation of derivative instruments Concept (Monetary) As Of Credit ifrs-full:NoncurrentDerivativeFinancialLiabilities
1800 Environmental liabilities Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromExplorationForAndEvaluationOfMineralResources
1801 Other non-current liabilities and provisions Concept (Monetary) As Of Credit ifrs-full:OtherCurrentNonfinancialLiabilities
1802 Other non-current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
1803 1137 - Disclosure - Other Current and Non-current Liabilities - Summary of Other Non-current Liabilities (Parenthetical) (Detail) Network

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1804 Implied Table Table

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1808 1138 - Disclosure - Other Current and Non-current Liabilities - Changes in Consolidated Other Current and Non-current Liabilities (Detail) Network

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1809 Disclosure of other provisions [table] Table

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1826 Current provisions Concept (Monetary) As Of Credit ifrs-full:OtherShorttermProvisions
1827 1139 - Disclosure - Pensions and Post-Employment Benefits - Additional Information (Detail) Network

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1828 Disclosure of defined benefit plans [table] Table

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1854 Medical inflation rates used to determine the projected benefits obligation Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfMedicalCostTrendRates
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1857 Significant assumptions Concept (Percent) As Of ifrs-full:OtherMaterialActuarialAssumptions
1858 1140 - Disclosure - Pensions and Post-Employment Benefits - Schedule Actuarial Results Related to Pension and Other Post Retirement Benefits (Detail) Network

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1859 Disclosure of defined benefit plans [table] Table

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1872 Actuarial (gains) losses for the period Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
1873 Total (loss) / gain recognized during the period Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTax
1874 1141 - Disclosure - Pensions and Post-Employment Benefits - Summary of Actuarial (Gains) Losses (Detail) Network

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1875 Implied Table Table

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1876 Gain (loss) on remeasurement, net defined benefit liability (asset) [abstract] Abstract ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract
1877 Actuarial (gains) losses due to experience Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset
1878 Actuarial (gains) losses due to demographic assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
1879 Actuarial (gains) losses due financial assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
1880 Total Concept (Monetary) For Period Debit ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
1881 1142 - Disclosure - Pensions and Post-Employment Benefits - Schedule of Reconciliations of the Actuarial Benefits Obligations, Pension Plan Assets, And Liabilities Recognized in the Balance Sheet (Detail) Network

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1882 Disclosure of defined benefit plans [table] Table

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1883 Assets and liabilities [axis] Axis ifrs-full:AssetsAndLiabilitiesAxis
1884 Assets and liabilities [member] Member ifrs-full:AssetsAndLiabilitiesMember
1885 Pension defined benefit plans [member] Member ifrs-full:PensionDefinedBenefitPlansMember
1886 Other Benefits Plans [Member] Member cx:OtherBenefitsPlansMember
1887 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1888 Projected benefit obligation at beginning of the period Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
1889 Service cost Concept (Monetary) For Period Credit ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
1890 Interest cost Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
1891 Actuarial (gains) losses Concept (Monetary) For Period Debit cx:ActuarialLossesGains
1892 Additions through business combinations Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughBusinessCombinationsAndDisposalsNetDefinedBenefitLiabilityAsset
1893 Reduction from disposal of assets Concept (Monetary) For Period Debit cx:ReductionFromDisposalOfPlanAssets
1894 Plan amendments Concept (Monetary) For Period Debit cx:PlanAmendments
1895 Benefits paid Concept (Monetary) For Period Debit ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset
1896 Foreign currency translation Concept (Monetary) For Period Credit cx:ForeignCurrencyTranslationGainsLosses
1897 Projected benefit obligation at end of the period Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
1898 Fair value of plan assets at beginning of the period Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
1899 Return on plan assets Concept (Monetary) For Period Debit ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset
1900 Actuarial (gains) losses Concept (Monetary) For Period Debit cx:ActuarialIncreaseDecreaseInPlanAssets
1901 Employer contributions Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
1902 Additions through business combinations Concept (Monetary) As Of Debit ifrs-full:OtherAssetsAmountContributedToFairValueOfPlanAssets
1903 Reduction for disposal of assets Concept (Monetary) For Period Credit cx:ReductionForDisposalOfPlanAssets
1904 Benefits paid Concept (Monetary) For Period Debit cx:BenefitsPaid
1905 Foreign currency translation Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset
1906 Fair value of plan assets at end of the period Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
1907 Net projected liability in the statement of financial position Concept (Monetary) As Of Debit ifrs-full:SurplusDeficitInPlan
1908 1143 - Disclosure - Pensions and Post-Employment Benefits - Summary of Plan Assets Measured at Estimated Fair Value (Detail) Network

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1909 Disclosure of fair value of plan assets [table] Table

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1910 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1911 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1912 Level 1 [Member] Member ifrs-full:Level1OfFairValueHierarchyMember
1913 Level 2 [Member] Member ifrs-full:Level2OfFairValueHierarchyMember
1914 Level 3 [Member] Member ifrs-full:Level3OfFairValueHierarchyMember
1915 Disclosure of fair value of plan assets [line items] LineItems ifrs-full:DisclosureOfFairValueOfPlanAssetsLineItems
1916 Cash Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets
1917 Investments in corporate bonds Concept (Monetary) As Of Debit cx:CorporateBondsAmountContributedToFairValueOfPlanAssets
1918 Investments in government bonds Concept (Monetary) As Of Debit cx:GovernmentFixedInterestBondsAmountContributedToFairValueOfPlanAssets
1919 Total fixed-income securities Concept (Monetary) As Of Debit cx:DefinedBenefitPlanFixedIncomeSecurities
1920 Investment in marketable securities Concept (Monetary) As Of Debit cx:MarketableSecuritiesAmountContributedToFairValueOfPlanAssets
1921 Other investments and private funds Concept (Monetary) As Of Debit ifrs-full:InvestmentFundsAmountContributedToFairValueOfPlanAssets
1922 Total variable-income securities Concept (Monetary) As Of Debit cx:DefinedBenefitPlanVariableIncomeSecurities
1923 Total plan assets Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
1924 1144 - Disclosure - Pensions and Post-Employment Benefits - Summary of Significant Assumptions Used in the Determination of the Benefit Obligation (Detail) Network

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1925 Disclosure of defined benefit plans [table] Table

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ifrs-full:DisclosureOfDefinedBenefitPlansTable
1926 Range [axis] Axis ifrs-full:RangeAxis
1927 Ranges [member] Member ifrs-full:RangesMember
1928 Top of range [member] Member ifrs-full:TopOfRangeMember
1929 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1930 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1931 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1932 Defined Benefit Obligation [Member] Member cx:DefinedBenefitObligationMember
1933 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1934 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1935 Mexico [member] Member country:MX
1936 United States [member] Member country:US
1937 United Kingdom [member] Member country:GB
1938 Other countries [member] Member cx:OtherCountriesMember
1939 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1940 Discount rates Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfDiscountRates
1941 Rate of return on plan assets Concept (Percent) As Of cx:ActuarialAssumptionOfRateOfReturnOnPlanAssets
1942 Rate of salary increases Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
1943 1145 - Disclosure - Pensions and Post-Employment Benefits - Schedule of Estimated Payments for Pensions and Other Post-Employment Benefits (Detail) Network

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1944 Implied Table Table

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1945 Disclosure - Pensions and Post-Employment Benefits - Schedule of Estimated Payments for Pensions and Other Post-Employment Benefits [Abstract] Abstract cx:DisclosurePensionsAndPostEmploymentBenefitsScheduleOfEstimatedPaymentsForPensionsAndOtherPostEmploymentBenefitsAbstract
1946 2019 Concept (Monetary) For Period Debit cx:EstimatedPaymentsForPensionsAndOtherPostEmploymentBenefitsDueInNextTwelveMonths
1947 2020 Concept (Monetary) For Period Debit cx:EstimatedPaymentsForPensionsAndOtherPostEmploymentBenefitsDueInYearTwo
1948 2021 Concept (Monetary) For Period Debit cx:EstimatedPaymentsForPensionsAndOtherPostEmploymentBenefitsDueInYearThree
1949 2022 Concept (Monetary) For Period Debit cx:EstimatedPaymentsForPensionsAndOtherPostEmploymentBenefitsDueInYearFour
1950 2023 - 2028 Concept (Monetary) For Period Debit cx:EstimatedPaymentsForPensionsAndOtherPostEmploymentBenefitsDueInYearsFiveToTen
1951 1146 - Disclosure - Pensions and Post-Employment Benefits - Aggregate Projected Benefit Obligation for Pension Plans and Other Post-employment Benefits and the Plan Assets by Country (Detail) Network

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1952 Disclosure of fair value of plan assets [table] Table

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1953 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1954 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1955 Mexico [member] Member country:MX
1956 United States [member] Member country:US
1957 United Kingdom [member] Member country:GB
1958 Germany [member] Member country:DE
1959 Other countries [member] Member cx:OtherCountriesMember
1960 Disclosure of fair value of plan assets [line items] LineItems ifrs-full:DisclosureOfFairValueOfPlanAssetsLineItems
1961 PBO Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
1962 Assets Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
1963 Deficit Concept (Monetary) As Of Debit ifrs-full:SurplusDeficitInPlan
1964 1147 - Disclosure - Pensions and Post-Employment Benefits - Sensitivity Analysis of Pension and Other Post-Employment Benefits (Detail) Network

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1965 Disclosure of sensitivity analysis for actuarial assumptions [table] Table

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ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable
1966 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1967 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1968 Pension defined benefit plans [member] Member ifrs-full:PensionDefinedBenefitPlansMember
1969 Other post employment benefits [Member] Member cx:OtherPostEmploymentBenefitsMember
1970 Actuarial assumptions [axis] Axis ifrs-full:ActuarialAssumptionsAxis
1971 Actuarial assumptions [member] Member ifrs-full:ActuarialAssumptionsMember
1972 Actuarial assumption of discount rates [member] Member ifrs-full:ActuarialAssumptionOfDiscountRatesMember
1973 Actuarial assumption of expected rates of salary increases [member] Member ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember
1974 Actuarial assumption of expected rates of pension increases [member] Member ifrs-full:ActuarialAssumptionOfExpectedRatesOfPensionIncreasesMember
1975 Disclosure of sensitivity analysis for actuarial assumptions [line items] LineItems ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems
1976 Sensitivity, possible increase in actuarial assumption Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption
1977 Sensitivity, possible decrease in actuarial assumption Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption
1978 1148 - Disclosure - Income Taxes - Summary of Income Tax Expense (Detail) Network

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1979 Implied Table Table

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1980 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
1981 Current income taxes Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
1982 Deferred income tax revenue (expense) Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
1983 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1984 1149 - Disclosure - Income Taxes - Summary of Temporary Differences in Deferred Income Tax Assets and Liabilities (Detail) Network

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1985 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
1986 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1987 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1988 Country of domicile [member] Member ifrs-full:CountryOfDomicileMember
1989 Foreign countries [member] Member ifrs-full:ForeignCountriesMember
1990 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
1991 Net deferred tax asset (liability) Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
1992 Deferred tax assets: Abstract cx:DeferredTaxAssetsAbstract
1993 Tax loss carryforwards and other tax credits Concept (Monetary) As Of Debit cx:DeferredTaxLossCarryforwardsAndOtherTaxCredits
1994 Accounts payable and accrued expenses Concept (Monetary) As Of Debit cx:DeferredTaxAssetAccountsPayableAndAccruedExpenses
1995 Intangible assets and deferred charges, net Concept (Monetary) As Of Debit cx:DeferredTaxAssetIntangibleAssetsAndDeferredCharges
1996 Total deferred tax assets, gross Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
1997 Presentation offset regarding same legal entity Concept (Monetary) As Of Debit cx:DeferredTaxAssetsPresentationOffsetRegardingSameLegalEntity
1998 Total deferred tax assets, net in the statement of financial position Concept (Monetary) As Of Debit ifrs-full:NetDeferredTaxAssets
1999 Deferred tax liabilities: Abstract cx:DeferredTaxLiabilities1Abstract
2000 Property, machinery and equipment Concept (Monetary) As Of Credit cx:DeferredTaxLiabilitiesPropertyMachineryAndEquipment
2001 Investments and other assets Concept (Monetary) As Of Credit cx:DeferredTaxLiabilitiesInvestmentsAndOtherAssets
2002 Total deferred tax liabilities, gross Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
2003 Presentation offset regarding same legal entity Concept (Monetary) As Of Credit cx:DeferredTaxLiabilitiesPresentationOffsetRegardingSameLegalEntity
2004 Total deferred tax liabilities, net in the statement of financial position Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
2005 Net deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
2006 1150 - Disclosure - Income Taxes - Summary of Temporary Differences in Deferred Income Tax Assets and Liabilities (Parenthetical) (Detail) Network

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2007 Implied Table Table

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implied:Table
2008 Deferred tax assets and liabilities [abstract] Abstract ifrs-full:DeferredTaxAssetsAndLiabilitiesAbstract
2009 Mineral reserves useful life, years Concept (xbrli:durationItemType) For Period cx:IntangibleAssetUsefulLifeYears
2010 1151 - Disclosure - Income Taxes - Summary of the Balances of the Deferred tax Assets and Liabilities in Statement of Financial Position (Detail) Network

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2011 Disclosure of Deferred Tax Assets And Liabilities [table] Table

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cx:DisclosureOfDeferredTaxAssetsAndLiabilitiesTable
2012 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2013 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2014 Country of domicile [member] Member ifrs-full:CountryOfDomicileMember
2015 Foreign countries [member] Member ifrs-full:ForeignCountriesMember
2016 Disclosure of Deferred Tax Assets And Liabilities [line items] LineItems cx:DisclosureOfDeferredTaxAssetsAndLiabilitiesLineItems
2017 Asset Concept (Monetary) As Of Debit ifrs-full:NetDeferredTaxAssets
2018 Liability Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
2019 Net Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
2020 1152 - Disclosure - Income Taxes - Summary of Breakdown of Changes in Consolidated Deferred Income Taxes (Detail) Network

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2021 Implied Table Table

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2022 Changes in deferred tax liability (asset) [abstract] Abstract ifrs-full:ChangesInDeferredTaxLiabilityAssetAbstract
2023 Deferred income tax (charged) credited to the income statement Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
2024 Deferred income tax (charged) credited to stockholders' equity Concept (Monetary) For Period ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity
2025 Reclassification to other captions in the statement of financial position and in the income statement Concept (Monetary) For Period ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
2026 Change in deferred income tax during the period Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInDeferredTaxLiabilityAsset
2027 1153 - Disclosure - Income Taxes - Summary of Breakdown of Changes in Consolidated Deferred Income Taxes (Parenthetical) (Detail) Network

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2028 Implied Table Table

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2029 Changes in deferred tax liability (asset) [abstract] Abstract ifrs-full:ChangesInDeferredTaxLiabilityAssetAbstract
2030 Deferred income tax revenue Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
2031 1154 - Disclosure - Income Taxes - Summary of Current and Deferred Income Tax Relative to Items of Other Comprehensive Income Loss (Detail) Network

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2032 Implied Table Table

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2033 Income tax relating to components of other comprehensive income [abstract] Abstract ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAbstract
2034 Tax effects relative to foreign exchange fluctuations from debt (note 20.2) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToChangeInValueOfForeignCurrencyBasisSpreadsOfOtherComprehensiveIncome
2035 Tax effects relative to foreign exchange fluctuations from intercompany balances (note 20.2) Concept (Monetary) For Period Debit cx:IncomeTaxRelatingToForeignExchangeFluctuationsFromIntercompanyBalances
2036 Tax effects relative to actuarial (gains) and losses (note 20.2) Concept (Monetary) For Period Debit cx:IncomeTaxRelatingToTaxEffectsRelativeToActuarialGainsLose
2037 Foreign currency translation and other effects Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToHedgesOfNetInvestmentsInForeignOperationsOfOtherComprehensiveIncome
2038 Total current and deferred income tax relative to items of other comprehensive income (loss) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
2039 1155 - Disclosure - Income Taxes - Summary of Tax Loss and Tax Credits (Detail) Network

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2040 Disclosure Of Income Taxes [table] Table

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cx:DisclosureOfIncomeTaxesTable
2041 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
2042 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
2043 Tax Loss Carry Forwards [Member] Member cx:TaxLossCarryForwardsMember
2044 Amount of unrecognized carryforwards [Member] Member cx:TaxLossReservedMember
2045 Amount of recognized carryforwards [Member] Member cx:TaxLossUnreservedMember
2046 Disclosure of Income Taxes [Line Items] LineItems cx:DisclosureOfIncomeTaxesLineItems
2047 2019 Concept (Monetary) As Of Credit cx:TaxLossAndTaxCreditsDueInNextRollingTwelveMonths
2048 2020 Concept (Monetary) As Of Credit cx:TaxLossAndTaxCreditsDueDueInRollingYearTwo
2049 2021 Concept (Monetary) As Of Credit cx:TaxLossAndTaxCreditsDueDueInRollingYearThree
2050 2022 Concept (Monetary) As Of Credit cx:TaxLossAndTaxCreditsDueDueInRollingYearFour
2051 2023 and thereafter Concept (Monetary) As Of Credit cx:TaxLossAndTaxCreditsDueDueAfterRollingYearFive
2052 Tax Loss And Tax Credits, Total Concept (Monetary) As Of Credit cx:TaxLossAndTaxCredits
2053 1156 - Disclosure - Income Taxes - Additional Information (Detail) Network

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2054 Disclosure Of Income Taxes [table] Table

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cx:DisclosureOfIncomeTaxesTable
2055 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2056 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2057 United States [member] Member country:US
2058 Income tax authority 1 [axis] Axis cx:IncomeTaxAuthority1Axis
2059 Income Tax Authority 1 [domain] Member cx:IncomeTaxAuthority1Domain
2060 Income tax return 2012 [member] Member cx:IncomeTaxReturnTwoThousandTwelveMember
2061 Income tax return 2011 [member] Member cx:IncomeTaxReturnTwoThousandElevenMember
2062 Disclosure of Income Taxes [Line Items] LineItems cx:DisclosureOfIncomeTaxesLineItems
2063 pre-tax income Concept (Monetary) For Period Debit cx:ExpectedIncomeTaxBenefitExpenses
2064 Deferred income tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
2065 Applicable income tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
2066 Tax Cuts and Jobs Act of 2017, Change in Tax Rate, Increase (decrease) in net deferred tax assets Concept (Monetary) For Period Credit cx:TaxCutsAndJobsActOf2017ChangeInTaxRateIncreaseDecreaseInNetDeferredTaxAssets
2067 Prior year tax loss carryforwards value Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod
2068 Income tax penalty imposed Concept (Monetary) For Period Credit cx:IncomeTaxPenaltyImposed
2069 Increase in tax to be paid Concept (Monetary) For Period Credit cx:IncreaseInTaxToBePaid
2070 1157 - Disclosure - Income taxes - Effective Consolidated Income Tax Rates (Detail) Network

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2071 Implied Table Table

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2072 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
2073 Income before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
2074 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
2075 Effective consolidated income tax rate Concept (Percent) For Period ifrs-full:AverageEffectiveTaxRate
2076 1158 - Disclosure - Income Taxes - Schedule of Reconciliation Between Actual Income Tax Expense and Amount Computed by Applying Statutory Tax Rate (Detail) Network

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2077 Implied Table Table

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2078 Reconciliation of accounting profit multiplied by applicable tax rates [abstract] Abstract ifrs-full:ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract
2079 Mexican statutory tax rate value Concept (Percent) For Period ifrs-full:ApplicableTaxRate
2080 Non-taxable dividend income Concept (Percent) For Period ifrs-full:TaxRateEffectOfRevenuesExemptFromTaxation
2081 Difference between accounting and tax expenses, net Concept (Percent) For Period ifrs-full:TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
2082 Unrecognized effects during the year related to applicable tax consolidation regimes Concept (Percent) For Period ifrs-full:TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods
2083 Non-taxable sale of equity securities and fixed assets Concept (Percent) For Period cx:TaxRateEffectOfNonTaxableSaleOfEquitySecuritiesAndFixedAssetsPercentage
2084 Difference between book and tax inflation Concept (Percent) For Period cx:TaxRateEffectOfAnnualInflationTaxAdjustment
2085 Differences in the income tax rates in the countries where CEMEX operates Concept (Percent) For Period ifrs-full:TaxRateEffectOfForeignTaxRates
2086 Changes in deferred tax assets Concept (Percent) For Period cx:TaxRateEffectOfAdjustmentsForDeferredTaxOfPriorPeriods
2087 Changes in provisions for uncertain tax positions Concept (Percent) For Period ifrs-full:TaxRateEffectOfTaxLosses
2088 Others Concept (Percent) For Period ifrs-full:OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
2089 Effective consolidated tax rate Concept (Percent) For Period ifrs-full:AverageEffectiveTaxRate
2090 Mexican statutory tax rate Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
2091 Non-taxable dividend income Concept (Monetary) For Period Credit ifrs-full:TaxEffectOfRevenuesExemptFromTaxation2011
2092 Difference between accounting and tax expenses, net Concept (Monetary) For Period Debit cx:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLossNet
2093 Unrecognized effects during the year related to applicable tax consolidation regimes Concept (Monetary) For Period Debit cx:TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriodsAmount
2094 Non-taxable sale of equity securities and fixed assets Concept (Monetary) For Period Debit cx:TaxRateEffectOfNonTaxableSaleOfEquitySecuritiesAndFixedAssets
2095 Difference between book and tax inflation Concept (Monetary) For Period Debit cx:TaxRateEffectOfAnnualInflationTaxAdjustmentAmount
2096 Differences in the income tax rates in the countries where CEMEX operates Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
2097 Changes in deferred tax assets Concept (Monetary) For Period Credit cx:TaxRateEffectOfAdjustmentsForDeferredTaxOfPriorPeriodsAmount
2098 Changes in provisions for uncertain tax positions Concept (Monetary) For Period Debit cx:TaxRateEffectOfAdjustmentsForProvisionsForUncertainTaxPositions
2099 Others Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
2100 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
2101 1159 - Disclosure - Income Taxes - Schedule of Reconciliation Between Actual Income Tax Expense and Amount Computed by Applying Statutory Tax Rate (Parenthetical) (Detail) Network

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2102 Reconciliation Of Effective Tax Rate [table] Table

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2116 Derecognition related to tax loss carryforwards recognized in prior years Concept (Monetary) For Period Credit cx:DerecognitionRelatedToTaxLossCarryforwardsRecognizedInPriorYears
2117 Recognition related to unrecognized tax loss carryforwards Concept (Monetary) For Period Credit cx:RecognitionRelatedToUnrecognizedTaxLossCarryforwards
2118 Foreign currency translation and other effects Concept (Monetary) For Period Credit cx:ForeignCurrencyTranslationAndOtherEffects
2119 Changes in deferred tax assets Concept (Monetary) As Of Credit cx:ChangesInDeferredTaxAssets
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2121 Implied Table Table

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2125 Additions for tax positions of current period Concept (Monetary) For Period Credit cx:AdditionsForTaxPositionsOfCurrentYear
2126 Reductions for tax positions related to prior periods and other items Concept (Monetary) For Period Credit cx:ReductionsForTaxPositionsRelatedToPriorYearsAndOtherItems
2127 Settlements and reclassifications Concept (Monetary) For Period Credit cx:SettlementsAndReclassifications
2128 Expiration of the statute of limitations Concept (Monetary) For Period Credit cx:ExpirationOfStatuteOfLimitations
2129 Foreign currency translation effects Concept (Monetary) For Period Credit cx:ForeignCurrencyTranslationEffects
2130 Balance of tax positions at end of the period Concept (Monetary) As Of Credit cx:BalanceOfTaxPositions
2131 1162 - Disclosure - Stockholders' Equity - Additional Information (Detail) Network

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2140 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
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2142 CEMEX Latam Holdings, S.A. [member] Member cx:CEMEXLatamHoldingsSAMember
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2165 Increase in common stock Concept (Monetary) For Period Credit cx:IncreaseInCommonStock
2166 Nominal value of common stock per CPO Concept (Share) As Of ifrs-full:ParValuePerShare
2167 Additional paid-in capital Concept (Monetary) As Of Credit ifrs-full:AdditionalPaidinCapital
2168 Number of shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
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2178 Exchange rate Concept (Decimal) For Period ifrs-full:AverageForeignExchangeRate
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*

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2195 Repurchased shares Concept (Shares) For Period cx:NumberOfSharesRepurchased
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2197 Shares authorized for the issuance of stock or convertible securities Concept (Shares) As Of cx:SharesAuthorizedForTheIssuanceOfStockOrConvertibleSecurities
2198 Number of shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
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2200 Disclosure of classes of share capital [table] Table

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2209 1166 - Disclosure - Stockholders' Equity - Summary of Other Equity Reserves (Detail) Network

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2210 Implied Table Table

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2213 Cumulative actuarial losses Concept (Monetary) As Of Credit cx:CumulativeActuarialLossesOnEquityReserve
2214 Treasury shares repurchased under share repurchase program (note 20.1) Concept (Monetary) For Period Debit ifrs-full:PurchaseOfTreasuryShares
2215 Effects associated with the Parent Company's convertible securities Concept (Monetary) As Of Debit cx:EffectsAssociatedWithConvertibleSecuritiesEquityReserve
2216 Treasury shares held by subsidiaries Concept (Monetary) As Of Debit ifrs-full:TreasuryShares
2217 Other equity reserves Concept (Monetary) As Of Credit ifrs-full:OtherReserves
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2219 Implied Table Table

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2223 Foreign exchange fluctuations from intercompany balances Concept (Monetary) For Period Credit cx:OtherComprehensiveIncomeNetOfTaxChangeInExchangeRatesFromIntercompanyBalances
2224 Translation effects of foreign subsidiaries, net Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
2225 1168 - Disclosure - Stockholders' Equity - Detail of Cemex's Perpetual Debentures, Excluding Perpetual Debentures Held by Subsidiaries (Detail) Network

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2240 Repurchase option Concept (Integer) For Period cx:DebtRepurchaseOptionAnniversaryNumber
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2243 Disclosure of terms and conditions of share-based payment arrangement [table] Table

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2262 Weighted average price per granted shares Concept (Monetary) For Period ifrs-full:WeightedAverageSharePrice
2263 Commitment payments in cash Concept (Monetary) As Of Credit cx:CommitmentsPaymentsInCash
2264 1170 - Disclosure - Earnings per Share - Summary of Calculations of Earnings per Share (Detail) Network

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2270 Weighted-average number of shares - basic Concept (Shares) For Period cx:WeightedAverageNumberOfSharesBasic
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2272 Effect of potentially dilutive instruments - optionally convertible securities (note 16.2) Concept (Shares) For Period ifrs-full:DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares
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2276 Controlling interest net income from continuing operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperationsAttributableToNoncontrollingInterests
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2278 Controlling interest net income from continuing operations - for basic earnings per share calculations Concept (Monetary) For Period Credit cx:ProfitLossAttributableToOwnersOfParentContinuingOperationsBasic
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2289 Controlling interest diluted earnings per share from discontinued operations Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShareFromDiscontinuedOperations
2290 1171 - Disclosure - Earnings per Share - Summary of Calculations of Earnings per Share (Parenthetical) (Detail) Network

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2302 Ventikas [member] Member cx:VentikasMember
2303 EURUS [member] Member cx:EURUSMember
2304 Termoelectrica del Golfo [member] Member cx:TermoelectricaDelGolfoMember
2305 CEMEX Ostzement GmbH [member] Member cx:CEMEXOstzementGmBHMember
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2308 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
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2322 Stop-loss limits value under medical assistance Concept (Monetary) For Period Debit cx:StoplossLimitsValueUnderMedicalAssistance
2323 Self-insured health care benefits Concept (Monetary) As Of Credit cx:SelfinsuredHealthCareBenefits
2324 1173 - Disclosure - Commitments - Summary of Contractual Obligations (Detail) Network

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2325 Disclosure of detailed information about borrowings [table] Table

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2337 Operating leases Concept (Monetary) For Period Debit cx:OperatingLeaseCharges
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2339 Pension plans and other benefits Concept (Monetary) As Of Credit cx:PensionPlansAndOtherBenefits
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2344 Disclosure of detailed information about borrowings [table] Table

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2353 1175 - Disclosure - Legal Proceedings - Additional Information (Detail) Network

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2367 Expiration of property over the aforementioned assets Concept (xbrli:durationItemType) For Period cx:PeriodOfExpirationOfPropertyOverAforementionedAssets
2368 Lease contract for a period Concept (xbrli:durationItemType) For Period cx:LeaseContractForPeriod
2369 Long term lease contract period Concept (xbrli:durationItemType) For Period cx:LongTermLeasePeriod
2370 Extended long term lease contract period Concept (xbrli:durationItemType) For Period cx:ExtendedLongTermLeasePeriod
2371 Cash advances by CEMEX Colombia Concept (Monetary) For Period Credit cx:CashAdvancesMadeBySubsidiaries
2372 Interest for advances Concept (Monetary) For Period Debit cx:InterestForAdvances
2373 Purchase of the assets related to the project in Colombian pesos Concept (Monetary) As Of Debit ifrs-full:CurrentInvestments
2374 Impairment of assets Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossOnFinancialAssets
2375 Impairment loss Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
2376 Reduction of other accounts payable Concept (Monetary) For Period Credit cx:IncreaseDecreaseInOtherAccountsPayable
2377 Accounts payable Concept (Monetary) As Of Credit cx:AccountsPayable
2378 Adjustments in accounts payable Concept (Monetary) For Period Credit cx:PaymentOfAdditionalValueAddedTaxPayables
2379 1176 - Disclosure - Contingencies - Additional Information (Detail) Network

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http://imetrix.edgar-online.com/taxonomy/role/DisclosureContingenciesAdditionalInformation
2380 Disclosure Of Commitments And Contingencies [table] Table

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cx:DisclosureOfCommitmentsAndContingenciesTable
2381 Range [axis] Axis ifrs-full:RangeAxis
2382 Ranges [member] Member ifrs-full:RangesMember
2383 Top of range [member] Member ifrs-full:TopOfRangeMember
2384 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
2385 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
2386 Parent [member] Member ifrs-full:ParentMember
2387 Superintendencia de Industria y Comercio [member] Member cx:SuperintendenciaDeIndustriaComercioMember
2388 CEMEX Polska [Member] Member cx:CemexPolskaMember
2389 APO Land & Quarry Corporation [member] Member cx:ApoLandQuarryCorporationMember
2390 Environmental Authority [member] Member cx:EnvironmentalAuthorityMember
2391 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2392 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2393 United Kingdom [member] Member country:GB
2394 United States [member] Member country:US
2395 Amounts arising from insurance contracts [axis] Axis ifrs-full:AmountsArisingFromInsuranceContractsAxis
2396 Net amount arising from insurance contracts [member] Member ifrs-full:NetAmountArisingFromInsuranceContractsMember
2397 Rehabilitation fund [member] Member cx:RehabilitationFundMember
2398 Currency [Axis] Axis srt:CurrencyAxis
2399 All Currencies [Domain] Member currency:AllCurrenciesDomain
2400 Polish Zloty [Member] Member currency:PLN
2401 Euro [member] Member currency:EUR
2402 Pounds [member] Member currency:GBP
2403 Colombian Peso [member] Member currency:COP
2404 Israelite Shekel [Member] Member currency:ILS
2405 Disclosure of Commitments and Contingencies [Line Items] LineItems cx:DisclosureOfCommitmentsAndContingenciesLineItems
2406 Incrementing production up on environmental permit needs modifications Concept (Decimal) For Period cx:ProductionCapacity
2407 Fine imposed Concept (Monetary) For Period Debit cx:FineImposed
2408 Reduction of Fine Imposed Concept (Monetary) For Period Debit cx:ReductionOfFineImposed
2409 Accrued environmental remediation liabilities Concept (Monetary) As Of Credit cx:EnvironmentalRemediationLiabilities
2410 Environmental expenditure assessment and quantification period from the date of closure, maximum Concept (xbrli:durationItemType) For Period cx:EnvironmentalExpenditureAssessmentAndQuantificationPeriodFromClosureDate
2411 Mibority interest percentage Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
2412 Number of individuals filed lawsuit Concept (Decimal) For Period cx:NumberOfIndividualsFiledLawsuit
2413 Number of entities Concept (Integer) For Period cx:NumberOfLegalEntities
2414 Number of individuals affected by landslide Concept (Decimal) For Period cx:NumberOfIndividualsAffectedByLandslide
2415 Loss contingency Concept (Monetary) For Period Debit cx:LossContingencyDamagesSoughtValue1
2416 Fine payable by S.L.U. Concept (Monetary) As Of Credit cx:AmountOfFinePayable
2417 Development levy on clay Concept (Monetary) As Of Credit cx:PaymentOfDevelopmentLevy
2418 Number of former employees Concept (Integer) For Period cx:NumberOfFormerEmployees
2419 Amount of damages and interest identified Concept (Monetary) For Period Credit cx:AmountOfDamagesAndInterestIdentified
2420 Damages sought value Concept (Monetary) For Period Debit cx:LossContingencyDamagesSought1
2421 Penality imposed Concept (Monetary) For Period Debit cx:PenaltiesImposed
2422 Official closing exchange rates Concept (Decimal) As Of ifrs-full:ClosingForeignExchangeRate
2423 1177 - Disclosure - Related Parties - Additional Information (Detail) Network

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*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureRelatedPartiesAdditionalInformation
2424 Disclosure of transactions between related parties [table] Table

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*

ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
2425 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
2426 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
2427 Performance Bonuses [Member] Member cx:PerformanceBonusesMember
2428 Executive Share-Based Compensation Programs [Member] Member cx:ExecutiveShareBasedCompensationProgramsMember
2429 Disclosure of Transactions Between Related Parties [Line Items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
2430 Amount of compensation of CEMEX board of directors Concept (Monetary) For Period Debit ifrs-full:DirectorsRemunerationExpense
2431 1178 - Disclosure - Main Subsidiaries - Summary of Main Subsidiaries Interests (Detail) Network

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*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureMainSubsidiariesSummaryOfMainSubsidiariesInterests
2432 Disclosure of subsidiaries [table] Table

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*

ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
2433 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
2434 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
2435 CEMEX Colombia S.A [member] Member cx:CEMEXColombiaSAMember
2436 CEMEX Topmix LLC, CEMEX Supermix LLC and CEMEX Falcon LLC [member] Member cx:CEMEXTopmixLLCCEMEXSupermixLLCAndCEMEXFalconLLCMember
2437 CEMEX Mexico, S. A. de C.V. [member] Member cx:CEMEXMexicoSAdeCVMember
2438 CEMEX Espana, S.A. [member] Member cx:CEMEXEspanaSAMember
2439 CEMEX, Inc. [member] Member cx:CEMEXIncMember
2440 CEMEX Latam Holdings, S.A. [member] Member cx:CEMEXLatamHoldingsSAMember
2441 CEMEX (Costa Rica), S.A. [member] Member cx:CEMEXCostaRicaSAMember
2442 CEMEX Nicaragua, S.A. [member] Member cx:CEMEXNicaraguaSAMember
2443 Assiut Cement Company [Member] Member cx:AssiutCementCompanyMember
2444 Cemento Bayano, S.A. [member] Member cx:CementoBayanoSAMember
2445 CEMEX Dominicana, S.A. [member] Member cx:CEMEXDominicanaSAMember
2446 Trinidad Cement Limited [member] Member cx:TrinidadCementLimitedMember
2447 Caribbean Cement Company Limited [member] Member cx:CaribbeanCementCompanyLimitedMember
2448 CEMEX de Puerto Rico Inc. [member] Member cx:CEMEXdePuertoRicoIncMember
2449 CEMEX France Gestion (S.A.S.) [member] Member cx:CEMEXFranceGestionSASMember
2450 CEMEX Holdings Philippines, Inc. [member] Member cx:CEMEXHoldingsPhilippinesIncMember
2451 Solid Cement Corporation [member] Member cx:SolidCementCorporationMember
2452 APO Cement Corporation [member] Member cx:APOCementCorporationMember
2453 CEMEX U.K. [member] Member cx:CEMEXUKMember
2454 CEMEX Deutschland, AG. [member] Member cx:CEMEXDeutschlandAGMember
2455 CEMEX Czech Republic, s.r.o. [member] Member cx:CEMEXCzechRepublicsroMember
2456 CEMEX Polska sp. Z.o.o.[member] Member cx:CEMEXPolskaspZooMember
2457 CEMEX Holdings (Israel) Ltd. [member] Member cx:CEMEXHoldingsIsraelLtdMember
2458 CEMEX SIA [member] Member cx:CEMEXSIAMember
2459 Neoris N.V. [member] Member cx:NeorisNVMember
2460 CEMEX International Trading, LLC [member] Member cx:CEMEXInternationalTradingLLCMember
2461 Transenegy, Inc. [member] Member cx:TransenergyIncMember
2462 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
2463 Name of subsidiary Concept (Text/String) For Period ifrs-full:NameOfSubsidiary
2464 Country of incorporation of subsidiary Concept (Text/String) For Period ifrs-full:CountryOfIncorporationOrResidenceOfSubsidiary
2465 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
2466 1179 - Disclosure - Main Subsidiaries - Summary of Main Subsidiaries Interests (Parenthetical) (Detail) Network

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http://imetrix.edgar-online.com/taxonomy/role/DisclosureMainSubsidiariesSummaryOfMainSubsidiariesInterestsParenthetical
2467 Disclosure of subsidiaries [table] Table

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ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
2468 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
2469 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
2470 Parent [member] Member ifrs-full:ParentMember
2471 Classes of ordinary shares [axis] Axis ifrs-full:ClassesOfOrdinarySharesAxis
2472 Ordinary Shares [Member] Member ifrs-full:OrdinarySharesMember
2473 Common Stock [member] Member cx:CommonStock1Member
2474 Preferred Shares [member] Member cx:PreferredSharesMember
2475 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
2476 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
2477 CEMEX Colombia S.A [member] Member cx:CEMEXColombiaSAMember
2478 CEMEX Topmix LLC, CEMEX Supermix LLC and CEMEX Falcon LLC [member] Member cx:CEMEXTopmixLLCCEMEXSupermixLLCAndCEMEXFalconLLCMember
2479 Cemento Bayano, S.A. [member] Member cx:CementoBayanoSAMember
2480 Trinidad Cement Limited [member] Member cx:TrinidadCementLimitedMember
2481 Caribbean Cement Company Limited [member] Member cx:CaribbeanCementCompanyLimitedMember
2482 Ownership Type [axis] Axis cx:OwnershipTypeAxis
2483 Ownership [Domain] Member srt:OwnershipDomain
2484 Parent [member] Member ifrs-full:ParentMember
2485 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
2486 Percentage of interest Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
2487 Interest held on treasury Concept (Percent) For Period cx:PercentageOfOwnershipInterestHeldOnTreasury
2488 Percentage of ownership interest Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointOperation
2489 Percentage of ownership interest Concept (Percent) For Period cx:ProportionOfOwnershipInDirectAndIndirectInterestInSubsidiary
2490 Percentage of ownership interest Concept (Percent) For Period cx:ProportionOfOwnershipInIndirectInterest
2491 Percentage of equity interest Concept (Percent) For Period cx:PercentageOfEquityInterest
2492 1180 - Disclosure - Subsequent Events - Additional Information (Detail) Network

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http://imetrix.edgar-online.com/taxonomy/role/DisclosureSubsequentEventsAdditionalInformation
2493 Disclosure of non-adjusting events after reporting period [table] Table

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ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodTable
2494 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
2495 Non-adjusting Events After Reporting Period [Member] Member ifrs-full:NonadjustingEventsMember
2496 Announcement of pan to discontinue operation [member] Member ifrs-full:AnnouncementOfPlanToDiscontinueOperationMember
2497 Debt Issued [member] Member cx:DebtIssuedMember
2498 Partial redemption [member] Member cx:PartialRedemptionMember
2499 Full Redemption [member] Member cx:FullRedemptionMember
2500 Events after reporting period [member] Member cx:EventsAfterReportingPeriodMember
2501 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2502 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2503 Latvia [member] Member country:LV
2504 LITHUANIA Member country:LT
2505 FINLAND Member country:FI
2506 NORWAY Member country:NO
2507 SWEDEN Member country:SE
2508 North Germany [member] Member cx:NorthGermanyMember
2509 North west Germany [member] Member cx:NorthWestGermanyMember
2510 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
2511 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
2512 SCHWENK [member] Member cx:SCHWENKMember
2513 Contract duration [axis] Axis ifrs-full:ContractDurationAxis
2514 Contract duration [member] Member ifrs-full:ContractDurationMember
2515 Lease agreements [member] Member cx:LeaseAgreementsMember
2516 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
2517 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
2518 3.125% Senior Secured Notes due 2026 [member] Member cx:ThreePointOneTwoFivePercentageSeniorSecuredNotesDueTwoThousandTwentySixMember
2519 4.375% Senior Secured Notes due 2023 [member] Member cx:FourPointThreeSevenFiveSeniorSecuredNotesDueTwoThousandTwentyThreeMember
2520 3.72 % subordinated convertible notes [member] Member cx:ThreePointSevenTwoSubordinatedConvertibleNotesMember
2521 CEMEX, S.A.B. de C.V. March 2023 Notes [member] Member cx:CemexSABDeCVMarchTwoThousandTwentyThreeMember
2522 Disclosure of non-adjusting events after reporting period [line items] LineItems ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
2523 Sale of assets, agreed price Concept (Monetary) For Period Debit cx:SaleOfBusinessSalePrice
2524 Number of cement production plant sold Concept (Decimal) As Of cx:NumberOfCementPlantsSold
2525 Number of aggregate quarries sold Concept (Integer) For Period cx:NumberOfAggregatesQuarriesSold
2526 Number of cement quarries sold Concept (Integer) For Period cx:NumberOfCementQuarriesSold
2527 Number of ready mix concrete plants sold Concept (Decimal) As Of cx:NumberOfReadyMixPlantsSold
2528 Number of marine terminal sold Concept (Integer) For Period cx:NumberOfMarineTerminalSold
2529 Number of land distribution terminal sold Concept (Integer) For Period cx:NumberOfLandDistributionTerminalSold
2530 Percentage of indirect assets Concept (Percent) For Period cx:PercentageOfIndirectInterestInAssetsDivested
2531 Number of import terminals sold Concept (Integer) For Period cx:NumberOfImportTerminalsSold
2532 Aggregate principal Concept (Monetary) As Of ifrs-full:NotionalAmount
2533 Interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
2534 Borrowings maturity Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
2535 Borrowings issue price, percentage Concept (Percent) For Period cx:BorrowingsIssuePricePercentage
2536 Aggregate principal amount redemption Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBondsNotesAndDebentures
2537 Proceeds from divestiture of assets Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets
2538 Principal amount of maturities extending for amendment process Concept (Monetary) As Of Credit cx:PrincipalAmountOfMaturitiesExtendingForAmendmentProcess
2539 Agreement maturity period Concept (xbrli:durationItemType) For Period cx:AgreementMaturityPeriod
2540 Percentage of maturities aggregate under credit agreement Concept (Percent) For Period cx:PercentageOfMaturitiesAggregateUnderCreditAgreement
2541 Lease assets duration Concept (xbrli:durationItemType) For Period cx:LeaseAssetsDuration
2542 Extended lease assets duration Concept (xbrli:durationItemType) For Period cx:NumberOfLeaseAssetsExtendedPeriod
2543 Amended annual production capacity of cement Concept (num:massItemType) For Period cx:AnnualProductionCapacity

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