3.19.1 html 1732 876 1 false 525 0 false 14 false false R1.htm 1001 - Document - Document and Entity Information Sheet http://imetrix.edgar-online.com/taxonomy/role/DocumentandEntityInformation Document and Entity Information Cover 1 false false R2.htm 1003 - Statement - Consolidated Statement of Financial Position Sheet http://imetrix.edgar-online.com/taxonomy/role/StatementOfFinancialPositionCurrentNonCurrent-210000 Consolidated Statement of Financial Position Statements 2 false false R3.htm 1004 - Statement - Consolidated Statement of Income Sheet http://imetrix.edgar-online.com/taxonomy/role/StatementOfComprehensiveIncomeProfitOrLossByNatureOfExpense-320000 Consolidated Statement of Income Statements 3 false false R4.htm 1005 - Statement - Consolidated Statement of Comprehensive Income Sheet http://imetrix.edgar-online.com/taxonomy/role/StatementOfComprehensiveIncomeOCIComponentsPresentedNetOfTax-410000 Consolidated Statement of Comprehensive Income Statements 4 false false R5.htm 1006 - Statement - Consolidated Statement of Changes in Equity Sheet http://imetrix.edgar-online.com/taxonomy/role/StatementOfChangesInEquity-610000 Consolidated Statement of Changes in Equity Statements 5 false false R6.htm 1007 - Statement - Consolidated Statement of Cash Flows Sheet http://imetrix.edgar-online.com/taxonomy/role/StatementOfCashFlowsDirectMethod-510000 Consolidated Statement of Cash Flows Statements 6 false false R7.htm 1008 - Disclosure - General Information Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfGeneralInformationAboutFinancialStatementsExplanatory General Information Notes 7 false false R8.htm 1009 - Disclosure - Summary of Significant Accounting Policies Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory Summary of Significant Accounting Policies Notes 8 false false R9.htm 1010 - Disclosure - Standards, Amendments and Interpretation Adopted in 2018 Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfStandardsAmendmentsAndInterpretationsAdoptedExplanatory Standards, Amendments and Interpretation Adopted in 2018 Notes 9 false false R10.htm 1011 - Disclosure - Financial Risk Management Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialRiskManagementExplanatory Financial Risk Management Notes 10 false false R11.htm 1012 - Disclosure - Critical Accounting Estimates and Judgements Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCriticalAccountingEstimatesAndJudgementsExplanatory Critical Accounting Estimates and Judgements Notes 11 false false R12.htm 1013 - Disclosure - Interest in Other Entities Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInterestsInOtherEntitiesExplanatory Interest in Other Entities Notes 12 false false R13.htm 1014 - Disclosure - Segment Reporting Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSegmentalReportingExplanatory Segment Reporting Notes 13 false false R14.htm 1015 - Disclosure - Financial Instruments Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialInstrumentsExplanatory Financial Instruments Notes 14 false false R15.htm 1016 - Disclosure - Cash and Cash Equivalents Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashAndCashEquivalentsExplanatory Cash and Cash Equivalents Notes 15 false false R16.htm 1017 - Disclosure - Other Financial Assets Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialAssetsExplanatory Other Financial Assets Notes 16 false false R17.htm 1018 - Disclosure - Trade Accounts Receivable, Net Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTradeAndOtherReceivablesExplanatory Trade Accounts Receivable, Net Notes 17 false false R18.htm 1019 - Disclosure - Work in Progress, Net Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfUnbilledWorkInProgressExplanatory Work in Progress, Net Notes 18 false false R19.htm 1020 - Disclosure - Transactions with Related Parties and Joint Operators Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRelatedPartyExplanatory Transactions with Related Parties and Joint Operators Notes 19 false false R20.htm 1021 - Disclosure - Other Accounts Receivable Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherAccountsReceivableExplanatory Other Accounts Receivable Notes 20 false false R21.htm 1022 - Disclosure - Inventories Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInventoriesExplanatory Inventories Notes 21 false false R22.htm 1023 - Disclosure - Investments in Associates and Joint Ventures Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSignificantInvestmentsInAssociatesAndJointVenturesExplanatory Investments in Associates and Joint Ventures Notes 22 false false R23.htm 1024 - Disclosure - Property, Plant and Equipment, Net Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatory Property, Plant and Equipment, Net Notes 23 false false R24.htm 1025 - Disclosure - Intangible Assets Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIntangibleAssetsExplanatory Intangible Assets Notes 24 false false R25.htm 1026 - Disclosure - Borrowings Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfBorrowingsExplanatory Borrowings Notes 25 false false R26.htm 1027 - Disclosure - Bonds Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDetailedInformationAboutBorrowingsExplanatory Bonds Notes 26 false false R27.htm 1028 - Disclosure - Trade Accounts Payable Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTradeAccountsPayableExplanatory Trade Accounts Payable Notes 27 false false R28.htm 1029 - Disclosure - Other Accounts Payable Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherPayablesExplanatory Other Accounts Payable Notes 28 false false R29.htm 1030 - Disclosure - Provisions Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfProvisionsExplanatory Provisions Notes 29 false false R30.htm 1031 - Disclosure - Equity Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory Equity Notes 30 false false R31.htm 1032 - Disclosure - Deferred Income Tax Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDeferredTaxesExplanatory Deferred Income Tax Notes 31 false false R32.htm 1033 - Disclosure - Workers' Profit Sharing Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfWorkersProfitSharingExplanatory Workers' Profit Sharing Notes 32 false false R33.htm 1034 - Disclosure - Expenses by Nature Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfExpensesByNatureExplanatory Expenses by Nature Notes 33 false false R34.htm 1035 - Disclosure - Financial Income and Expenses Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinanceIncomeExpenseExplanatory Financial Income and Expenses Notes 34 false false R35.htm 1036 - Disclosure - Other Income and Expenses, Net Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherOperatingIncomeExpenseExplanatory Other Income and Expenses, Net Notes 35 false false R36.htm 1037 - Disclosure - Tax Situation Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatory Tax Situation Notes 36 false false R37.htm 1038 - Disclosure - Other Comprehensive Income Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory Other Comprehensive Income Notes 37 false false R38.htm 1039 - Disclosure - Contingencies, Committments and Warranties Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfContingenciesCommitmentsAndWarrantiesExplanatory Contingencies, Committments and Warranties Notes 38 false false R39.htm 1040 - Disclosure - Business Combinations Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfBusinessCombinationsExplanatory Business Combinations Notes 39 false false R40.htm 1041 - Disclosure - Dividends Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDividendsExplanatory Dividends Notes 40 false false R41.htm 1042 - Disclosure - Earnings (Losses) Per Share Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEarningsPerShareExplanatory Earnings (Losses) Per Share Notes 41 false false R42.htm 1043 - Disclosure - Transactions with Non-Controlling Interests Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTransactionsWithNoncontrollingInterestsExplanatory Transactions with Non-Controlling Interests Notes 42 false false R43.htm 1044 - Disclosure - Discountinued Operations and Non-current Asset Classified as Held for Sale Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDiscontinuedOperationsExplanatory Discountinued Operations and Non-current Asset Classified as Held for Sale Notes 43 false false R44.htm 1045 - Disclosure - Events After the Date of the Statement of Financial Position Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEventsAfterReportingPeriodExplanatory Events After the Date of the Statement of Financial Position Notes 44 false false R45.htm 1046 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatoryPolicies Summary of Significant Accounting Policies (Policies) Policies http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory 45 false false R46.htm 1047 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatoryTables Summary of Significant Accounting Policies (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory 46 false false R47.htm 1048 - Disclosure - Standards, Amendments and Interpretation Adopted in 2018 (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfStandardsAmendmentsAndInterpretationsAdoptedExplanatoryTables Standards, Amendments and Interpretation Adopted in 2018 (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfStandardsAmendmentsAndInterpretationsAdoptedExplanatory 47 false false R48.htm 1049 - Disclosure - Financial Risk Management (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialRiskManagementExplanatoryTables Financial Risk Management (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialRiskManagementExplanatory 48 false false R49.htm 1050 - Disclosure - Critical Accounting Estimates and Judgements (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCriticalAccountingEstimatesAndJudgementsExplanatoryTables Critical Accounting Estimates and Judgements (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCriticalAccountingEstimatesAndJudgementsExplanatory 49 false false R50.htm 1051 - Disclosure - Interest in Other Entities (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInterestsInOtherEntitiesExplanatoryTables Interest in Other Entities (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInterestsInOtherEntitiesExplanatory 50 false false R51.htm 1052 - Disclosure - Segment Reporting (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSegmentalReportingExplanatoryTables Segment Reporting (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSegmentalReportingExplanatory 51 false false R52.htm 1053 - Disclosure - Financial Instruments (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialInstrumentsExplanatoryTables Financial Instruments (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialInstrumentsExplanatory 52 false false R53.htm 1054 - Disclosure - Cash and Cash Equivalents (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashAndCashEquivalentsExplanatoryTables Cash and Cash Equivalents (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashAndCashEquivalentsExplanatory 53 false false R54.htm 1055 - Disclosure - Trade Accounts Receivable, Net (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTradeAndOtherReceivablesExplanatoryTables Trade Accounts Receivable, Net (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTradeAndOtherReceivablesExplanatory 54 false false R55.htm 1056 - Disclosure - Work in Progress, Net (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfUnbilledWorkInProgressExplanatoryTables Work in Progress, Net (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfUnbilledWorkInProgressExplanatory 55 false false R56.htm 1057 - Disclosure - Transactions with Related Parties and Joint Operators (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRelatedPartyExplanatoryTables Transactions with Related Parties and Joint Operators (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRelatedPartyExplanatory 56 false false R57.htm 1058 - Disclosure - Other Accounts Receivable (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherAccountsReceivableExplanatoryTables Other Accounts Receivable (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherAccountsReceivableExplanatory 57 false false R58.htm 1059 - Disclosure - Inventories (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInventoriesExplanatoryTables Inventories (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInventoriesExplanatory 58 false false R59.htm 1060 - Disclosure - Investments in Associates and Joint Ventures (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSignificantInvestmentsInAssociatesAndJointVenturesExplanatoryTables Investments in Associates and Joint Ventures (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSignificantInvestmentsInAssociatesAndJointVenturesExplanatory 59 false false R60.htm 1061 - Disclosure - Property, Plant and Equipment, Net (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatoryTables Property, Plant and Equipment, Net (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatory 60 false false R61.htm 1062 - Disclosure - Intangible Assets (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIntangibleAssetsExplanatoryTables Intangible Assets (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIntangibleAssetsExplanatory 61 false false R62.htm 1063 - Disclosure - Borrowings (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfBorrowingsExplanatoryTables Borrowings (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfBorrowingsExplanatory 62 false false R63.htm 1064 - Disclosure - Bonds (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDetailedInformationAboutBorrowingsExplanatoryTables Bonds (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDetailedInformationAboutBorrowingsExplanatory 63 false false R64.htm 1065 - Disclosure - Trade Accounts Payable (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTradeAccountsPayableExplanatoryTables Trade Accounts Payable (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTradeAccountsPayableExplanatory 64 false false R65.htm 1066 - Disclosure - Other Accounts Payable (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherPayablesExplanatoryTables Other Accounts Payable (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherPayablesExplanatory 65 false false R66.htm 1067 - Disclosure - Provisions (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfProvisionsExplanatoryTables Provisions (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfProvisionsExplanatory 66 false false R67.htm 1068 - Disclosure - Equity (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatoryTables Equity (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory 67 false false R68.htm 1069 - Disclosure - Deferred Income Tax (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDeferredTaxesExplanatoryTables Deferred Income Tax (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDeferredTaxesExplanatory 68 false false R69.htm 1070 - Disclosure - Workers' Profit Sharing (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfWorkersProfitSharingExplanatoryTables Workers' Profit Sharing (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfWorkersProfitSharingExplanatory 69 false false R70.htm 1071 - Disclosure - Expenses by Nature (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfExpensesByNatureExplanatoryTables Expenses by Nature (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfExpensesByNatureExplanatory 70 false false R71.htm 1072 - Disclosure - Financial Income and Expenses (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinanceIncomeExpenseExplanatoryTables Financial Income and Expenses (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinanceIncomeExpenseExplanatory 71 false false R72.htm 1073 - Disclosure - Other Income and Expenses, Net (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherOperatingIncomeExpenseExplanatoryTables Other Income and Expenses, Net (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherOperatingIncomeExpenseExplanatory 72 false false R73.htm 1074 - Disclosure - Tax Situation (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatoryTables Tax Situation (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatory 73 false false R74.htm 1075 - Disclosure - Other Comprehensive Income (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatoryTables Other Comprehensive Income (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory 74 false false R75.htm 1076 - Disclosure - Earnings (Losses) Per Share (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEarningsPerShareExplanatoryTables Earnings (Losses) Per Share (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEarningsPerShareExplanatory 75 false false R76.htm 1077 - Disclosure - Transactions with Non-Controlling Interests (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTransactionsWithNoncontrollingInterestsExplanatoryTables Transactions with Non-Controlling Interests (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTransactionsWithNoncontrollingInterestsExplanatory 76 false false R77.htm 1078 - Disclosure - Discountinued Operations and Non-current Asset Classified as Held for Sale (Tables) Sheet http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDiscontinuedOperationsExplanatoryTables Discountinued Operations and Non-current Asset Classified as Held for Sale (Tables) Tables http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDiscontinuedOperationsExplanatory 77 false false R78.htm 1079 - Disclosure - General Information - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureGeneralInformationAdditionalInformation General Information - Additional Information (Detail) Details 78 false false R79.htm 1080 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformation Summary of Significant Accounting Policies - Additional Information (Detail) Details 79 false false R80.htm 1081 - Disclosure - Summary of Significant Accounting Policies - Summary of Estimated Useful Life of Property, Plant and Equipment (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfEstimatedUsefulLifeOfPropertyPlantAndEquipment Summary of Significant Accounting Policies - Summary of Estimated Useful Life of Property, Plant and Equipment (Detail) Details 80 false false R81.htm 1082 - Disclosure - Summary of Significant Accounting Policies - Summary of Restatement of Statement of Income (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfRestatementOfStatementOfIncome Summary of Significant Accounting Policies - Summary of Restatement of Statement of Income (Detail) Details 81 false false R82.htm 1083 - Disclosure - Standards, Amendments and Interpretation Adopted in 2018 - Schedule of Original Measurement Categories under IAS 39 and New Measurement Categories under IFRS 9 for Each Class of Financial Assets and Financial Liabilities Explanatory (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureStandardsAmendmentsAndInterpretationAdoptedIn2018ScheduleOfOriginalMeasurementCategoriesUnderIAS39AndNewMeasurementCategoriesUnderIFRS9ForEachClassOfFinancialAssetsA_Xa Standards, Amendments and Interpretation Adopted in 2018 - Schedule of Original Measurement Categories under IAS 39 and New Measurement Categories under IFRS 9 for Each Class of Financial Assets and Financial Liabilities Explanatory (Detail) Details 82 false false R83.htm 1084 - Disclosure - Standards, Amendments and Interpretation Adopted in 2018 - Schedule of Adoption of IFRS 9 and IFRS 15 with Impact in Equity (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureStandardsAmendmentsAndInterpretationAdoptedIn2018ScheduleOfAdoptionOfIFRS9AndIFRS15WithImpactInEquity Standards, Amendments and Interpretation Adopted in 2018 - Schedule of Adoption of IFRS 9 and IFRS 15 with Impact in Equity (Detail) Details 83 false false R84.htm 1085 - Disclosure - Standards, Amendments and Interpretation Adopted in 2018 - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureStandardsAmendmentsAndInterpretationAdoptedIn2018AdditionalInformation Standards, Amendments and Interpretation Adopted in 2018 - Additional Information (Detail) Details 84 false false R85.htm 1086 - Disclosure - Financial Risk Management - Schedule of Consolidated Statement of Financial Position (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialRiskManagementScheduleOfConsolidatedStatementOfFinancialPosition Financial Risk Management - Schedule of Consolidated Statement of Financial Position (Detail) Details 85 false false R86.htm 1087 - Disclosure - Financial Risk Management - Schedule of Foreign Currency Exchange Gains and Losses Exposure against US Dollar (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialRiskManagementScheduleOfForeignCurrencyExchangeGainsAndLossesExposureAgainstUSDollar Financial Risk Management - Schedule of Foreign Currency Exchange Gains and Losses Exposure against US Dollar (Detail) Details 86 false false R87.htm 1088 - Disclosure - Financial Risk Management - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialRiskManagementAdditionalInformation Financial Risk Management - Additional Information (Detail) Details 87 false false R88.htm 1089 - Disclosure - Financial Risk Management - Schedule of Assets and Liabilities Equivalent to Functional Currency (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialRiskManagementScheduleOfAssetsAndLiabilitiesEquivalentToFunctionalCurrency Financial Risk Management - Schedule of Assets and Liabilities Equivalent to Functional Currency (Detail) Details 88 false false R89.htm 1090 - Disclosure - Financial Risk Management - Schedule of Undiscounted Cash Flows of Financial Liabilities (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialRiskManagementScheduleOfUndiscountedCashFlowsOfFinancialLiabilities Financial Risk Management - Schedule of Undiscounted Cash Flows of Financial Liabilities (Detail) Details 89 false false R90.htm 1091 - Disclosure - Financial Risk Management - Schedule of Information About Gearing Ratio (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialRiskManagementScheduleOfInformationAboutGearingRatio Financial Risk Management - Schedule of Information About Gearing Ratio (Detail) Details 90 false false R91.htm 1092 - Disclosure - Financial Risk Management - Schedule of Assets and Liabilities Measured at Fair Value (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialRiskManagementScheduleOfAssetsAndLiabilitiesMeasuredAtFairValue Financial Risk Management - Schedule of Assets and Liabilities Measured at Fair Value (Detail) Details 91 false false R92.htm 1093 - Disclosure - Critical Accounting Estimates And Judgments - Summary of Sensitivity Analysis Based on 10% Increase/Decrease in Assumptions of Gross Margin, Discount Rate, Terminal Growth Rate (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureCriticalAccountingEstimatesAndJudgmentsSummaryOfSensitivityAnalysisBasedOn10IncreaseDecreaseInAssumptionsOfGrossMarginDiscountRateTerminalGrowthRate Critical Accounting Estimates And Judgments - Summary of Sensitivity Analysis Based on 10% Increase/Decrease in Assumptions of Gross Margin, Discount Rate, Terminal Growth Rate (Detail) Details 92 false false R93.htm 1094 - Disclosure - Critical Accounting Estimates and Judgments - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureCriticalAccountingEstimatesAndJudgmentsAdditionalInformation Critical Accounting Estimates and Judgments - Additional Information (Detail) Details 93 false false R94.htm 1095 - Disclosure - Critical Accounting Estimates and Judgments - Summary of Sensitivity Analysis Performed Considering a 10% Increase/Decrease in Group's Gross Margins (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureCriticalAccountingEstimatesAndJudgmentsSummaryOfSensitivityAnalysisPerformedConsideringA10IncreaseDecreaseInGroupsGrossMargins Critical Accounting Estimates and Judgments - Summary of Sensitivity Analysis Performed Considering a 10% Increase/Decrease in Group's Gross Margins (Detail) Details 94 false false R95.htm 1096 - Disclosure - Critical Accounting Estimates and Judgements - Disclosure of Adjustments of Financial Statements (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureCriticalAccountingEstimatesAndJudgementsDisclosureOfAdjustmentsOfFinancialStatements Critical Accounting Estimates and Judgements - Disclosure of Adjustments of Financial Statements (Detail) Details 95 false false R96.htm 1097 - Disclosure - Interests in Other Entities - Summary of Principal Direct and Indirect Subsidiaries Classified by Operating Segment (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInterestsInOtherEntitiesSummaryOfPrincipalDirectAndIndirectSubsidiariesClassifiedByOperatingSegment Interests in Other Entities - Summary of Principal Direct and Indirect Subsidiaries Classified by Operating Segment (Detail) Details 96 false false R97.htm 1098 - Disclosure - Interests in Other Entities - Summary of Group's Subsidiaries and Related Interests (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInterestsInOtherEntitiesSummaryOfGroupsSubsidiariesAndRelatedInterests Interests in Other Entities - Summary of Group's Subsidiaries and Related Interests (Detail) Details 97 false false R98.htm 1099 - Disclosure - Interests in Other Entities - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInterestsInOtherEntitiesAdditionalInformation Interests in Other Entities - Additional Information (Detail) Details 98 false false R99.htm 1100 - Disclosure - Interests in Other Entities - Summary of Group's Subsidiaries Non-controlling Interests (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInterestsInOtherEntitiesSummaryOfGroupsSubsidiariesNoncontrollingInterests Interests in Other Entities - Summary of Group's Subsidiaries Non-controlling Interests (Detail) Details 99 false false R100.htm 1101 - Disclosure - Interests in Other Entities - Summarized Financial Information of Subsidiaries With Material Non-controlling Interests (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInterestsInOtherEntitiesSummarizedFinancialInformationOfSubsidiariesWithMaterialNoncontrollingInterests Interests in Other Entities - Summarized Financial Information of Subsidiaries With Material Non-controlling Interests (Detail) Details 100 false false R101.htm 1102 - Disclosure - Interests in Other Entities - Summary of Group's Public Services Concessions (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInterestsInOtherEntitiesSummaryOfGroupsPublicServicesConcessions Interests in Other Entities - Summary of Group's Public Services Concessions (Detail) Details 101 false false R102.htm 1103 - Disclosure - Interests on Other Entities - Summary of Group's Major Joint Operations (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInterestsOnOtherEntitiesSummaryOfGroupsMajorJointOperations Interests on Other Entities - Summary of Group's Major Joint Operations (Detail) Details 102 false false R103.htm 1104 - Disclosure - Segment Reporting- Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentReportingAdditionalInformation Segment Reporting- Additional Information (Detail) Details 103 false false R104.htm 1105 - Disclosure - Segment Reporting - Disclosure of Profit before Income Tax Reconciles to EBITDA (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentReportingDisclosureOfProfitBeforeIncomeTaxReconcilesToEBITDA Segment Reporting - Disclosure of Profit before Income Tax Reconciles to EBITDA (Detail) Details 104 false false R105.htm 1106 - Disclosure - Segment Reporting - Disclosure of Detailed Information about EBITDA for Each Segment (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentReportingDisclosureOfDetailedInformationAboutEBITDAForEachSegment Segment Reporting - Disclosure of Detailed Information about EBITDA for Each Segment (Detail) Details 105 false false R106.htm 1107 - Disclosure - Segment Reporting - Summary of Breakdown by Operating Segments (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentReportingSummaryOfBreakdownByOperatingSegments Segment Reporting - Summary of Breakdown by Operating Segments (Detail) Details 106 false false R107.htm 1108 - Disclosure - Segment Reporting - Disclosure of Detailed Information About Operating Segments Financial Position (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentReportingDisclosureOfDetailedInformationAboutOperatingSegmentsFinancialPosition Segment Reporting - Disclosure of Detailed Information About Operating Segments Financial Position (Detail) Details 107 false false R108.htm 1109 - Disclosure - Segment Reporting - Disclosure of Detailed Information About Operating Segment Performance (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentReportingDisclosureOfDetailedInformationAboutOperatingSegmentPerformance Segment Reporting - Disclosure of Detailed Information About Operating Segment Performance (Detail) Details 108 false false R109.htm 1110 - Disclosure - Segment Reporting - Disclosure of Detailed Information About Segments by Geographical Area (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentReportingDisclosureOfDetailedInformationAboutSegmentsByGeographicalArea Segment Reporting - Disclosure of Detailed Information About Segments by Geographical Area (Detail) Details 109 false false R110.htm 1111 - Disclosure - Financial Instruments - Summary of Financial Assets and Liabilities by Category (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialInstrumentsSummaryOfFinancialAssetsAndLiabilitiesByCategory Financial Instruments - Summary of Financial Assets and Liabilities by Category (Detail) Details 110 false false R111.htm 1112 - Disclosure - Financial Instruments - Summary of Credit Quality of Financial Assets (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialInstrumentsSummaryOfCreditQualityOfFinancialAssets Financial Instruments - Summary of Credit Quality of Financial Assets (Detail) Details 111 false false R112.htm 1113 - Disclosure - Financial Instruments - Summary of Credit Quality of Customers (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialInstrumentsSummaryOfCreditQualityOfCustomers Financial Instruments - Summary of Credit Quality of Customers (Detail) Details 112 false false R113.htm 1114 - Disclosure - Cash and Cash Equivalent- Summary of Cash and Cash Equivalents (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureCashAndCashEquivalentSummaryOfCashAndCashEquivalents Cash and Cash Equivalent- Summary of Cash and Cash Equivalents (Detail) Details 113 false false R114.htm 1115 - Disclosure - Cash and Cash Equivalent- Summary of Cash and Cash Equivalents (Parenthetical) (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureCashAndCashEquivalentSummaryOfCashAndCashEquivalentsParenthetical Cash and Cash Equivalent- Summary of Cash and Cash Equivalents (Parenthetical) (Detail) Details 114 false false R115.htm 1116 - Disclosure - Cash and Cash Equivalents - Summary of Time Deposits from Subsidiaries (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureCashAndCashEquivalentsSummaryOfTimeDepositsFromSubsidiaries Cash and Cash Equivalents - Summary of Time Deposits from Subsidiaries (Detail) Details 115 false false R116.htm 1117 - Disclosure - Cash and Cash Equivalent- Summary of Reconcile to the Amount of Cash Shown in the Statement of Cash Flow (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureCashAndCashEquivalentSummaryOfReconcileToTheAmountOfCashShownInTheStatementOfCashFlow Cash and Cash Equivalent- Summary of Reconcile to the Amount of Cash Shown in the Statement of Cash Flow (Detail) Details 116 false false R117.htm 1118 - Disclosure - Other Financial Assets - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherFinancialAssetsAdditionalInformation Other Financial Assets - Additional Information (Detail) Details 117 false false R118.htm 1119 - Disclosure - Trade Accounts Receivable, Net - Summary of Trade Accounts Receivables (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTradeAccountsReceivableNetSummaryOfTradeAccountsReceivables Trade Accounts Receivable, Net - Summary of Trade Accounts Receivables (Detail) Details 118 false false R119.htm 1120 - Disclosure - Trade Accounts Receivable, Net - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTradeAccountsReceivableNetAdditionalInformation Trade Accounts Receivable, Net - Additional Information (Detail) Details 119 false false R120.htm 1121 - Disclosure - Trade Accounts Receivable, Net - Schedule of Current and Non-Current Unbilled Receivables (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTradeAccountsReceivableNetScheduleOfCurrentAndNonCurrentUnbilledReceivables Trade Accounts Receivable, Net - Schedule of Current and Non-Current Unbilled Receivables (Detail) Details 120 false false R121.htm 1122 - Disclosure - Trade Accounts Receivable, Net - Summary of Aging of Trade Accounts Receivable (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTradeAccountsReceivableNetSummaryOfAgingOfTradeAccountsReceivable Trade Accounts Receivable, Net - Summary of Aging of Trade Accounts Receivable (Detail) Details 121 false false R122.htm 1123 - Disclosure - Work in Progress, Net - Summary of Unbilled Work in Progress (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureWorkInProgressNetSummaryOfUnbilledWorkInProgress Work in Progress, Net - Summary of Unbilled Work in Progress (Detail) Details 122 false false R123.htm 1124 - Disclosure - Work in Progress, Net - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureWorkInProgressNetAdditionalInformation Work in Progress, Net - Additional Information (Detail) Details 123 false false R124.htm 1125 - Disclosure - Transactions with Related Parties and Joint Operators - Disclosure of Transactions Between Related Parties (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTransactionsWithRelatedPartiesAndJointOperatorsDisclosureOfTransactionsBetweenRelatedParties Transactions with Related Parties and Joint Operators - Disclosure of Transactions Between Related Parties (Detail) Details 124 false false R125.htm 1126 - Disclosure - Transactions with Related Parties and Joint Operators - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTransactionsWithRelatedPartiesAndJointOperatorsAdditionalInformation Transactions with Related Parties and Joint Operators - Additional Information (Detail) Details 125 false false R126.htm 1127 - Disclosure - Transactions with Related Parties and Joint Operators - Summary of Sale Purchase of Goods Services (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTransactionsWithRelatedPartiesAndJointOperatorsSummaryOfSalePurchaseOfGoodsServices Transactions with Related Parties and Joint Operators - Summary of Sale Purchase of Goods Services (Detail) Details 126 false false R127.htm 1128 - Disclosure - Other Accounts Receivable - Schedule of Other Accounts Receivable (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherAccountsReceivableScheduleOfOtherAccountsReceivable Other Accounts Receivable - Schedule of Other Accounts Receivable (Detail) Details 127 false false R128.htm 1129 - Disclosure - Other Accounts Receivable - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherAccountsReceivableAdditionalInformation Other Accounts Receivable - Additional Information (Detail) Details 128 false false R129.htm 1130 - Disclosure - Other Accounts Receivable - Schedule of Advances to Suppliers (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherAccountsReceivableScheduleOfAdvancesToSuppliers Other Accounts Receivable - Schedule of Advances to Suppliers (Detail) Details 129 false false R130.htm 1131 - Disclosure - Other Accounts Receivable - Schedule of Income Tax Payments (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherAccountsReceivableScheduleOfIncomeTaxPayments Other Accounts Receivable - Schedule of Income Tax Payments (Detail) Details 130 false false R131.htm 1132 - Disclosure - Other Accounts Receivable - Schedule of Tax Credit Related to VAT on Subsidiaries (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherAccountsReceivableScheduleOfTaxCreditRelatedToVATOnSubsidiaries Other Accounts Receivable - Schedule of Tax Credit Related to VAT on Subsidiaries (Detail) Details 131 false false R132.htm 1133 - Disclosure - Inventories - Schedule of Inventories (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInventoriesScheduleOfInventories Inventories - Schedule of Inventories (Detail) Details 132 false false R133.htm 1134 - Disclosure - Inventories - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInventoriesAdditionalInformation Inventories - Additional Information (Detail) Details 133 false false R134.htm 1135 - Disclosure - Inventories - Schedule of Inventories of Land (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInventoriesScheduleOfInventoriesOfLand Inventories - Schedule of Inventories of Land (Detail) Details 134 false false R135.htm 1136 - Disclosure - Inventories - Schedule of Inventories of Land (Parenthetical) (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInventoriesScheduleOfInventoriesOfLandParenthetical Inventories - Schedule of Inventories of Land (Parenthetical) (Detail) Details 135 false false R136.htm 1137 - Disclosure - Inventories - Schedule of Real Estate Work in Progress (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInventoriesScheduleOfRealEstateWorkInProgress Inventories - Schedule of Real Estate Work in Progress (Detail) Details 136 false false R137.htm 1138 - Disclosure - Inventories - Schedule of Inventories of Finished Properties (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInventoriesScheduleOfInventoriesOfFinishedProperties Inventories - Schedule of Inventories of Finished Properties (Detail) Details 137 false false R138.htm 1139 - Disclosure - Investments In Associates And Joint Ventures - Schedule of Amounts Recognised in Balance Sheet (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesScheduleOfAmountsRecognisedInBalanceSheet Investments In Associates And Joint Ventures - Schedule of Amounts Recognised in Balance Sheet (Detail) Details 138 false false R139.htm 1140 - Disclosure - Investments In Associates And Joint Ventures - Schedule of Amounts Recognised in Income Statement (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesScheduleOfAmountsRecognisedInIncomeStatement Investments In Associates And Joint Ventures - Schedule of Amounts Recognised in Income Statement (Detail) Details 139 false false R140.htm 1141 - Disclosure - Investments In Associates And Joint Ventures - Summary of Detailed Information about Investment in Associates (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesSummaryOfDetailedInformationAboutInvestmentInAssociates Investments In Associates And Joint Ventures - Summary of Detailed Information about Investment in Associates (Detail) Details 140 false false R141.htm 1142 - Disclosure - Investments in Associates and Joint Ventures - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesAdditionalInformation Investments in Associates and Joint Ventures - Additional Information (Detail) Details 141 false false R142.htm 1143 - Disclosure - Investments In Associates And Joint Ventures - Summary of Financial Information for Associates (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesSummaryOfFinancialInformationForAssociates Investments In Associates And Joint Ventures - Summary of Financial Information for Associates (Detail) Details 142 false false R143.htm 1144 - Disclosure - Investments in Associates and Joint Ventures - Schedule of Movement of Investments in Associates (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesScheduleOfMovementOfInvestmentsInAssociates Investments in Associates and Joint Ventures - Schedule of Movement of Investments in Associates (Detail) Details 143 false false R144.htm 1145 - Disclosure - Investments In Associates And Joint Ventures - Summary of Detailed Information about Joint Ventures (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesSummaryOfDetailedInformationAboutJointVentures Investments In Associates And Joint Ventures - Summary of Detailed Information about Joint Ventures (Detail) Details 144 false false R145.htm 1146 - Disclosure - Investments In Associates And Joint Venture - Summary of Financial Information for Joint Ventures (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVentureSummaryOfFinancialInformationForJointVentures Investments In Associates And Joint Venture - Summary of Financial Information for Joint Ventures (Detail) Details 145 false false R146.htm 1147 - Disclosure - Investments In Associates And Joint Venture - Schedule of Movement of Investments in Joint Ventures (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVentureScheduleOfMovementOfInvestmentsInJointVentures Investments In Associates And Joint Venture - Schedule of Movement of Investments in Joint Ventures (Detail) Details 146 false false R147.htm 1148 - Disclosure - Property, Plant And Equipment - Summary of Movement in Property, Plant and Equipment Accounts and Its Related Accumulated Depreciation (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentSummaryOfMovementInPropertyPlantAndEquipmentAccountsAndItsRelatedAccumulatedDepreciation Property, Plant And Equipment - Summary of Movement in Property, Plant and Equipment Accounts and Its Related Accumulated Depreciation (Detail) Details 147 false false R148.htm 1149 - Disclosure - Property, Plant and Equipment - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentAdditionalInformation Property, Plant and Equipment - Additional Information (Detail) Details 148 false false R149.htm 1150 - Disclosure - Property, Plant and Equipment and Intangible Assets - Summary of Depreciation of Fixed Assets and Investment Properties (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentAndIntangibleAssetsSummaryOfDepreciationOfFixedAssetsAndInvestmentProperties Property, Plant and Equipment and Intangible Assets - Summary of Depreciation of Fixed Assets and Investment Properties (Detail) Details 149 false false R150.htm 1151 - Disclosure - Property, Plant and Equipment - Summary of Net Carrying Amount of Machinery and Equipment, Vehicles and Furniture and Fixtures Acquired Under Finance Lease Agreements (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentSummaryOfNetCarryingAmountOfMachineryAndEquipmentVehiclesAndFurnitureAndFixturesAcquiredUnderFinanceLeaseAgreements Property, Plant and Equipment - Summary of Net Carrying Amount of Machinery and Equipment, Vehicles and Furniture and Fixtures Acquired Under Finance Lease Agreements (Detail) Details 150 false false R151.htm 1152 - Disclosure - Property, Plant and Equipment - Summary of Outstanding Commitments for Non-Cancellable Operating Leases (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentSummaryOfOutstandingCommitmentsForNonCancellableOperatingLeases Property, Plant and Equipment - Summary of Outstanding Commitments for Non-Cancellable Operating Leases (Detail) Details 151 false false R152.htm 1153 - Disclosure - Intangible Assets - Summary of Movement of Intangible Assets and That of Their Related Accumulated Amortization (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureIntangibleAssetsSummaryOfMovementOfIntangibleAssetsAndThatOfTheirRelatedAccumulatedAmortization Intangible Assets - Summary of Movement of Intangible Assets and That of Their Related Accumulated Amortization (Detail) Details 152 false false R153.htm 1154 - Disclosure - Intangible Assets - Summary of Goodwill Allocated to Cash-Generating Units (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureIntangibleAssetsSummaryOfGoodwillAllocatedToCashGeneratingUnits Intangible Assets - Summary of Goodwill Allocated to Cash-Generating Units (Detail) Details 153 false false R154.htm 1155 - Disclosure - Intangible Assets - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureIntangibleAssetsAdditionalInformation Intangible Assets - Additional Information (Detail) Details 154 false false R155.htm 1156 - Disclosure - Intangible Assets - Summary of Major Assumptions Used by the Group in Determining the Fair Value Less Cost of Disposal (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureIntangibleAssetsSummaryOfMajorAssumptionsUsedByTheGroupInDeterminingTheFairValueLessCostOfDisposal Intangible Assets - Summary of Major Assumptions Used by the Group in Determining the Fair Value Less Cost of Disposal (Detail) Details 155 false false R156.htm 1157 - Disclosure - Intangible Assets - Summary of Amortization of Intangibles (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureIntangibleAssetsSummaryOfAmortizationOfIntangibles Intangible Assets - Summary of Amortization of Intangibles (Detail) Details 156 false false R157.htm 1158 - Disclosure - Borrowings - Summary of Other Financial Liabilities (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureBorrowingsSummaryOfOtherFinancialLiabilities Borrowings - Summary of Other Financial Liabilities (Detail) Details 157 false false R158.htm 1159 - Disclosure - Borrowings - Additional information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureBorrowingsAdditionalInformation Borrowings - Additional information (Detail) Details 158 false false R159.htm 1160 - Disclosure - Borrowings - Summary of Bank Loan (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureBorrowingsSummaryOfBankLoan Borrowings - Summary of Bank Loan (Detail) Details 159 false false R160.htm 1161 - Disclosure - Borrowings - Summary of Finance Lease Obligations (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureBorrowingsSummaryOfFinanceLeaseObligations Borrowings - Summary of Finance Lease Obligations (Detail) Details 160 false false R161.htm 1162 - Disclosure - Borrowings - Summary of Minimum Payment by Maturity and Present Value of Finance Lease Obligations (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureBorrowingsSummaryOfMinimumPaymentByMaturityAndPresentValueOfFinanceLeaseObligations Borrowings - Summary of Minimum Payment by Maturity and Present Value of Finance Lease Obligations (Detail) Details 161 false false R162.htm 1163 - Disclosure - Borrowings - Summary of Present value of Finance Lease Obligations (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureBorrowingsSummaryOfPresentValueOfFinanceLeaseObligations Borrowings - Summary of Present value of Finance Lease Obligations (Detail) Details 162 false false R163.htm 1164 - Disclosure - Borrowings - Summary of Carrying Amount and Fair Value of Borrowings (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureBorrowingsSummaryOfCarryingAmountAndFairValueOfBorrowings Borrowings - Summary of Carrying Amount and Fair Value of Borrowings (Detail) Details 163 false false R164.htm 1165 - Disclosure - Bonds - Summary of Bonds Issued (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureBondsSummaryOfBondsIssued Bonds - Summary of Bonds Issued (Detail) Details 164 false false R165.htm 1166 - Disclosure - Bonds - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureBondsAdditionalInformation Bonds - Additional Information (Detail) Details 165 false false R166.htm 1167 - Disclosure - Bonds - Rollforwards of Bonds (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureBondsRollforwardsOfBonds Bonds - Rollforwards of Bonds (Detail) Details 166 false false R167.htm 1168 - Disclosure - Trade Accounts Payable - Summary of Trade Accounts Payable (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTradeAccountsPayableSummaryOfTradeAccountsPayable Trade Accounts Payable - Summary of Trade Accounts Payable (Detail) Details 167 false false R168.htm 1169 - Disclosure - Trade Accounts Payable - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTradeAccountsPayableAdditionalInformation Trade Accounts Payable - Additional Information (Detail) Details 168 false false R169.htm 1170 - Disclosure - Other Accounts Payable - Summary of Other Accounts Payable (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherAccountsPayableSummaryOfOtherAccountsPayable Other Accounts Payable - Summary of Other Accounts Payable (Detail) Details 169 false false R170.htm 1171 - Disclosure - Other Accounts Payable - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherAccountsPayableAdditionalInformation Other Accounts Payable - Additional Information (Detail) Details 170 false false R171.htm 1172 - Disclosure - Provisions - Summary of Other Provisions (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsSummaryOfOtherProvisions Provisions - Summary of Other Provisions (Detail) Details 171 false false R172.htm 1173 - Disclosure - Provisions - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAdditionalInformation Provisions - Additional Information (Detail) Details 172 false false R173.htm 1174 - Disclosure - Provisions - Summary Gross Movement of Other Provisions (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsSummaryGrossMovementOfOtherProvisions Provisions - Summary Gross Movement of Other Provisions (Detail) Details 173 false false R174.htm 1175 - Disclosure - Equity - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureEquityAdditionalInformation Equity - Additional Information (Detail) Details 174 false false R175.htm 1176 - Disclosure - Equity - Summary of Company's Corporte Structure (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureEquitySummaryOfCompanysCorporteStructure Equity - Summary of Company's Corporte Structure (Detail) Details 175 false false R176.htm 1177 - Disclosure - Deferred Income Tax - Summary of Deferred Income Tax (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureDeferredIncomeTaxSummaryOfDeferredIncomeTax Deferred Income Tax - Summary of Deferred Income Tax (Detail) Details 176 false false R177.htm 1178 - Disclosure - Deferred Income Tax - Summary of Gross Movement of Deferred Income Tax Item (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureDeferredIncomeTaxSummaryOfGrossMovementOfDeferredIncomeTaxItem Deferred Income Tax - Summary of Gross Movement of Deferred Income Tax Item (Detail) Details 177 false false R178.htm 1179 - Disclosure - Deferred Income Tax - Summary of Movements of Deferred Tax Assets and Liabilities (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureDeferredIncomeTaxSummaryOfMovementsOfDeferredTaxAssetsAndLiabilities Deferred Income Tax - Summary of Movements of Deferred Tax Assets and Liabilities (Detail) Details 178 false false R179.htm 1180 - Disclosure - Deferred Income Tax - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureDeferredIncomeTaxAdditionalInformation Deferred Income Tax - Additional Information (Detail) Details 179 false false R180.htm 1181 - Disclosure - Deferred Income Tax -Summary Of Tax Loss Carry forward (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureDeferredIncomeTaxSummaryOfTaxLossCarryForward Deferred Income Tax -Summary Of Tax Loss Carry forward (Detail) Details 180 false false R181.htm 1182 - Disclosure - Deferred Income Tax -Summary Of Tax Loss Carry forward (Parenthetical) (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureDeferredIncomeTaxSummaryOfTaxLossCarryForwardParenthetical Deferred Income Tax -Summary Of Tax Loss Carry forward (Parenthetical) (Detail) Details 181 false false R182.htm 1183 - Disclosure - Worker's Profit Sharing - Summary of Worker's Profit Sharing (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureWorkersProfitSharingSummaryOfWorkersProfitSharing Worker's Profit Sharing - Summary of Worker's Profit Sharing (Detail) Details 182 false false R183.htm 1184 - Disclosure - Expenses by Nature - Summary of Information about Expense by Nature (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureExpensesByNatureSummaryOfInformationAboutExpenseByNature Expenses by Nature - Summary of Information about Expense by Nature (Detail) Details 183 false false R184.htm 1185 - Disclosure - Expenses by Nature - Summary of Wages, Salaries and Fringe Benefits (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureExpensesByNatureSummaryOfWagesSalariesAndFringeBenefits Expenses by Nature - Summary of Wages, Salaries and Fringe Benefits (Detail) Details 184 false false R185.htm 1186 - Disclosure - Expenses by nature - Summary of impairment of accounts receivable (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureExpensesByNatureSummaryOfImpairmentOfAccountsReceivable Expenses by nature - Summary of impairment of accounts receivable (Detail) Details 185 false false R186.htm 1187 - Disclosure - Financial Income and Expenses - Summary of Financial Income and Expenses (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialIncomeAndExpensesSummaryOfFinancialIncomeAndExpenses Financial Income and Expenses - Summary of Financial Income and Expenses (Detail) Details 186 false false R187.htm 1188 - Disclosure - Other Income and Expenses, Net - Summary of Other Income and Expenses, Net (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherIncomeAndExpensesNetSummaryOfOtherIncomeAndExpensesNet Other Income and Expenses, Net - Summary of Other Income and Expenses, Net (Detail) Details 187 false false R188.htm 1189 - Disclosure - Tax Situation - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTaxSituationAdditionalInformation Tax Situation - Additional Information (Detail) Details 188 false false R189.htm 1190 - Disclosure - Tax Situation - Summary of Income Tax Expense (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTaxSituationSummaryOfIncomeTaxExpense Tax Situation - Summary of Income Tax Expense (Detail) Details 189 false false R190.htm 1191 - Disclosure - Tax Situation - Summary of Weighted-Average Income Tax Rate Applicable To Pre-tax Income (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTaxSituationSummaryOfWeightedAverageIncomeTaxRateApplicableToPretaxIncome Tax Situation - Summary of Weighted-Average Income Tax Rate Applicable To Pre-tax Income (Detail) Details 190 false false R191.htm 1192 - Disclosure - Tax Situation - Summary of Weighted Average Pre-tax Profit or Loss and Applicable Income Tax Rate (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTaxSituationSummaryOfWeightedAveragePretaxProfitOrLossAndApplicableIncomeTaxRate Tax Situation - Summary of Weighted Average Pre-tax Profit or Loss and Applicable Income Tax Rate (Detail) Details 191 false false R192.htm 1193 - Disclosure - Other Comprehensive Income - Summary of Accumulated Other Comprehensive Income Loss (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherComprehensiveIncomeSummaryOfAccumulatedOtherComprehensiveIncomeLoss Other Comprehensive Income - Summary of Accumulated Other Comprehensive Income Loss (Detail) Details 192 false false R193.htm 1194 - Disclosure - Other Comprehensive Income - Summary of Accumulated Other Comprehensive Income Loss (Parenthetical) (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherComprehensiveIncomeSummaryOfAccumulatedOtherComprehensiveIncomeLossParenthetical Other Comprehensive Income - Summary of Accumulated Other Comprehensive Income Loss (Parenthetical) (Detail) Details 193 false false R194.htm 1195 - Disclosure - Other Comprehensive Income - Summary of Other Comprehensive Income Loss (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherComprehensiveIncomeSummaryOfOtherComprehensiveIncomeLoss Other Comprehensive Income - Summary of Other Comprehensive Income Loss (Detail) Details 194 false false R195.htm 1196 - Disclosure - Contingencies Commitments and Warranties - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureContingenciesCommitmentsAndWarrantiesAdditionalInformation Contingencies Commitments and Warranties - Additional Information (Detail) Details 195 false false R196.htm 1197 - Disclosure - Business Combinations - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureBusinessCombinationsAdditionalInformation Business Combinations - Additional Information (Detail) Details 196 false false R197.htm 1198 - Disclosure - Earnings (Losses) Per Share - Summary of Basic Earnings Per Share (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureEarningsLossesPerShareSummaryOfBasicEarningsPerShare Earnings (Losses) Per Share - Summary of Basic Earnings Per Share (Detail) Details http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEarningsPerShareExplanatoryTables 197 false false R198.htm 1199 - Disclosure - Earnings (Losses) Per Share - Summary of Basic Earnings Per Share (Parenthetical) (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureEarningsLossesPerShareSummaryOfBasicEarningsPerShareParenthetical Earnings (Losses) Per Share - Summary of Basic Earnings Per Share (Parenthetical) (Detail) Details http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEarningsPerShareExplanatoryTables 198 false false R199.htm 1200 - Disclosure - Transactions with non-controlling interests - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTransactionsWithNoncontrollingInterestsAdditionalInformation Transactions with non-controlling interests - Additional Information (Detail) Details 199 false false R200.htm 1201 - Disclosure - Transactions with Non-controlling Interests - Summary of Contributions of Non-controlling Shareholders (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureTransactionsWithNoncontrollingInterestsSummaryOfContributionsOfNoncontrollingShareholders Transactions with Non-controlling Interests - Summary of Contributions of Non-controlling Shareholders (Detail) Details 200 false false R201.htm 1202 - Disclosure - Discontinued Operations - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureDiscontinuedOperationsAdditionalInformation Discontinued Operations - Additional Information (Detail) Details 201 false false R202.htm 1203 - Disclosure - Discontinued Operations and Non-Current Asset Classified as Held For Sale - Summary of Non-current Assets and Liabilities Held for Sale (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureDiscontinuedOperationsAndNonCurrentAssetClassifiedAsHeldForSaleSummaryOfNoncurrentAssetsAndLiabilitiesHeldForSale Discontinued Operations and Non-Current Asset Classified as Held For Sale - Summary of Non-current Assets and Liabilities Held for Sale (Detail) Details 202 false false R203.htm 1204 - Disclosure - Discontinued Operations - Summary of Financial Performance and Cash Flow Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureDiscontinuedOperationsSummaryOfFinancialPerformanceAndCashFlowInformation Discontinued Operations - Summary of Financial Performance and Cash Flow Information (Detail) Details 203 false false R204.htm 1205 - Disclosure - Events After the Date of the Statement of Financial Position - Additional Information (Detail) Sheet http://imetrix.edgar-online.com/taxonomy/role/DisclosureEventsAfterTheDateOfTheStatementOfFinancialPositionAdditionalInformation Events After the Date of the Statement of Financial Position - Additional Information (Detail) Details 204 false false All Reports Book All Reports gram-20181231.xml gram-20181231.xsd gram-20181231_cal.xml gram-20181231_def.xml gram-20181231_lab.xml gram-20181231_pre.xml http://xbrl.sec.gov/invest/2013-01-31 http://xbrl.sec.gov/dei/2018-01-31 http://xbrl.sec.gov/country/2017-01-31 http://xbrl.ifrs.org/taxonomy/2018-03-16/ifrs-full http://fasb.org/srt/2018-01-31 true true