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Report

Submitted: http://www.sec.gov/Archives/edgar/data/1172494/000095010318003972/auo-20171231.xml
For more information: http://logicalcontracts.com/xbrl-and-sbrm-reporting/
DISCLAIMER: this analysis is provided by software still under development, and likely incomplete or even erroneous; do NOT use it other than for experimental, inconsequential purposes

User Alterations

NONE

 

Table of Contents

TERMS
101 - Document - Document And Entity InformationStructuresFacts
102 - Statement - Consolidated Statements of Financial PositionStructuresFacts
103 - Statement - Consolidated Statements of Financial Position (Parenthetical)StructuresFacts
104 - Statement - Consolidated Statements of Comprehensive IncomeStructuresFacts
105 - Statement - Consolidated Statements of Changes in EquityStructuresFacts
106 - Statement - Consolidated Statements of Cash FlowsStructuresFacts
107 - Disclosure - OrganizationStructuresFacts
108 - Disclosure - The Authorization of Financial StatementsStructuresFacts
109 - Disclosure - New Accounting Pronouncements Under International Financial Reporting Standards (“IFRS”)StructuresFacts
110 - Disclosure - Summary of Significant Accounting PoliciesStructuresFacts
111 - Disclosure - Use of Judgments and EstimatesStructuresFacts
112 - Disclosure - Cash and Cash EquivalentsStructuresFacts
113 - Disclosure - Derivative Financial Instruments and Hedging InstrumentsStructuresFacts
114 - Disclosure - Available-for-sale Financial Assets–noncurrentStructuresFacts
115 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties)StructuresFacts
116 - Disclosure - InventoriesStructuresFacts
117 - Disclosure - Noncurrent Assets Held for SaleStructuresFacts
118 - Disclosure - Investments in equity-accounted InvesteesStructuresFacts
119 - Disclosure - Disposal of Part of Ownership Interest in Subsidiary without Losing ControlStructuresFacts
120 - Disclosure - Disposal of SubsidiariesStructuresFacts
121 - Disclosure - Property, Plant and EquipmentStructuresFacts
122 - Disclosure - Investment PropertyStructuresFacts
123 - Disclosure - Intangible AssetsStructuresFacts
124 - Disclosure - Other Current Assets and Other Noncurrent AssetsStructuresFacts
125 - Disclosure - Short-term BorrowingsStructuresFacts
126 - Disclosure - Convertible Bonds PayableStructuresFacts
127 - Disclosure - Long-term BorrowingsStructuresFacts
128 - Disclosure - ProvisionsStructuresFacts
129 - Disclosure - Operating LeasesStructuresFacts
130 - Disclosure - Employee BenefitsStructuresFacts
131 - Disclosure - Capital and Other Components of EquityStructuresFacts
132 - Disclosure - Share-based PaymentsStructuresFacts
133 - Disclosure - RevenueStructuresFacts
134 - Disclosure - Remuneration to Employees and DirectorsStructuresFacts
135 - Disclosure - The Nature of ExpensesStructuresFacts
136 - Disclosure - Other IncomeStructuresFacts
137 - Disclosure - Other Gains and LossesStructuresFacts
138 - Disclosure - Finance CostsStructuresFacts
139 - Disclosure - Income TaxesStructuresFacts
140 - Disclosure - Earnings per ShareStructuresFacts
141 - Disclosure - Financial InstrumentsStructuresFacts
142 - Disclosure - Financial Risk ManagementStructuresFacts
143 - Disclosure - Capital ManagementStructuresFacts
144 - Disclosure - Related-party TransactionsStructuresFacts
145 - Disclosure - Pledged AssetsStructuresFacts
146 - Disclosure - Contingent Liabilities and CommitmentsStructuresFacts
147 - Disclosure - Segment, Geographic and Revenue InformationStructuresFacts
148 - Disclosure - Subsequent EventsStructuresFacts
149 - Disclosure - Summary of Significant Accounting Policies (Policies)StructuresFacts
150 - Disclosure - Summary of Significant Accounting Policies (Tables)StructuresFacts
151 - Disclosure - Cash and Cash Equivalents (Tables)StructuresFacts
152 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Tables)StructuresFacts
153 - Disclosure - Available-for-sale Financial Assets–noncurrent (Tables)StructuresFacts
154 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Tables)StructuresFacts
155 - Disclosure - Inventories (Tables)StructuresFacts
156 - Disclosure - Noncurrent Assets Held for Sale (Tables)StructuresFacts
157 - Disclosure - Investments in equity-accounted Investees (Tables)StructuresFacts
158 - Disclosure - Disposal of Part of Ownership Interest in Subsidiary without Losing Control (Tables)StructuresFacts
159 - Disclosure - Disposal of Subsidiaries (Tables)StructuresFacts
160 - Disclosure - Property, Plant and Equipment (Tables)StructuresFacts
161 - Disclosure - Investment Property (Tables)StructuresFacts
162 - Disclosure - Intangible Assets (Tables)StructuresFacts
163 - Disclosure - Other Current Assets and Other Noncurrent Assets (Tables)StructuresFacts
164 - Disclosure - Short-term Borrowings (Tables)StructuresFacts
165 - Disclosure - Long-term Borrowings (Tables)StructuresFacts
166 - Disclosure - Provisions (Tables)StructuresFacts
167 - Disclosure - Operating Leases (Tables)StructuresFacts
168 - Disclosure - Employee Benefits (Tables)StructuresFacts
169 - Disclosure - Capital and Other Components of Equity (Tables)StructuresFacts
170 - Disclosure - Share-based Payments (Tables)StructuresFacts
171 - Disclosure - Revenue (Tables)StructuresFacts
172 - Disclosure - The Nature of Expenses (Tables)StructuresFacts
173 - Disclosure - Other Income (Tables)StructuresFacts
174 - Disclosure - Other Gains and Losses (Tables)StructuresFacts
175 - Disclosure - Finance Costs (Tables)StructuresFacts
176 - Disclosure - Income Taxes (Tables)StructuresFacts
177 - Disclosure - Earnings per Share (Tables)StructuresFacts
178 - Disclosure - Financial Instruments (Tables)StructuresFacts
179 - Disclosure - Financial Risk Management (Tables)StructuresFacts
180 - Disclosure - Capital Management (Tables)StructuresFacts
181 - Disclosure - Related-party Transactions (Tables)StructuresFacts
182 - Disclosure - Pledged Assets (Tables)StructuresFacts
183 - Disclosure - Contingent Liabilities and Commitments (Tables)StructuresFacts
184 - Disclosure - Segment, Geographic and Revenue Information (Tables)StructuresFacts
185 - Disclosure - Summary of Significant Accounting Policies (Details)StructuresFacts
186 - Disclosure - Summary of Significant Accounting Policies (Details Textual)StructuresFacts
187 - Disclosure - Cash and Cash Equivalents (Details)StructuresFacts
188 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details)StructuresFacts
189 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details 1)StructuresFacts
190 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details 2)StructuresFacts
191 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details 3)StructuresFacts
192 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details Textual)StructuresFacts
193 - Disclosure - Available-for-sale Financial Assets–noncurrent (Details)StructuresFacts
194 - Disclosure - Available-for-sale Financial Assets–noncurrent (Details Textual)StructuresFacts
195 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details)StructuresFacts
196 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details 1)StructuresFacts
197 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details 2)StructuresFacts
198 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details 3)StructuresFacts
199 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details Textual)StructuresFacts
200 - Disclosure - Inventories (Details)StructuresFacts
201 - Disclosure - Inventories (Details Textual)StructuresFacts
202 - Disclosure - Noncurrent Assets Held for Sale (Details)StructuresFacts
203 - Disclosure - Noncurrent Assets Held for Sale (Details Textual)StructuresFacts
204 - Disclosure - Investments in equity-accounted Investees (Details)StructuresFacts
205 - Disclosure - Investments in equity-accounted Investees (Details 1)StructuresFacts
206 - Disclosure - Investments in equity-accounted Investees (Details 2)StructuresFacts
207 - Disclosure - Investments in equity-accounted Investees (Details 3)StructuresFacts
208 - Disclosure - Investments in equity-accounted Investees (Details Textual)StructuresFacts
209 - Disclosure - Disposal of Part of Ownership Interest in Subsidiary without Losing Control (Details)StructuresFacts
210 - Disclosure - Disposal of Part of Ownership Interest in Subsidiary without Losing Control (Details Textual)StructuresFacts
211 - Disclosure - Disposal of Subsidiaries (Details)StructuresFacts
212 - Disclosure - Disposal of Subsidiaries (Details Textual)StructuresFacts
213 - Disclosure - Property, Plant and Equipment (Details)StructuresFacts
214 - Disclosure - Property, Plant and Equipment (Details 1)StructuresFacts
215 - Disclosure - Property, Plant and Equipment (Details Textual)StructuresFacts
216 - Disclosure - Investment Property (Details)StructuresFacts
217 - Disclosure - Investment Property (Details 1)StructuresFacts
218 - Disclosure - Investment Property (Details Textual)StructuresFacts
219 - Disclosure - Intangible Assets (Details)StructuresFacts
220 - Disclosure - Other Current Assets and Other Noncurrent Assets (Details)StructuresFacts
221 - Disclosure - Short-term Borrowings (Details)StructuresFacts
222 - Disclosure - Convertible Bonds Payable (Details Textual)StructuresFacts
223 - Disclosure - Long-term Borrowings (Details)StructuresFacts
224 - Disclosure - Long-term Borrowings (Details 1)StructuresFacts
225 - Disclosure - Provisions (Details)StructuresFacts
226 - Disclosure - Operating Leases (Details)StructuresFacts
227 - Disclosure - Operating Leases (Details 1)StructuresFacts
228 - Disclosure - Operating Leases (Details Textual)StructuresFacts
229 - Disclosure - Employee Benefits (Details)StructuresFacts
230 - Disclosure - Employee Benefits (Details 1)StructuresFacts
231 - Disclosure - Employee Benefits (Details 2)StructuresFacts
232 - Disclosure - Employee Benefits (Details 3)StructuresFacts
233 - Disclosure - Employee Benefits (Details Textual)StructuresFacts
234 - Disclosure - Capital and Other Components of Equity (Details)StructuresFacts
235 - Disclosure - Capital and Other Components of Equity (Details 1)StructuresFacts
236 - Disclosure - Capital and Other Components of Equity (Details 2)StructuresFacts
237 - Disclosure - Capital and Other Components of Equity (Details 3)StructuresFacts
238 - Disclosure - Capital and Other Components of Equity (Details Textual)StructuresFacts
239 - Disclosure - Share-based Payments (Details)StructuresFacts
240 - Disclosure - Share-based Payments (Details 1)StructuresFacts
241 - Disclosure - Share-based Payments (Details 2)StructuresFacts
242 - Disclosure - Share-based Payments (Details 3)StructuresFacts
243 - Disclosure - Share-based Payments (Details Textual)StructuresFacts
244 - Disclosure - Revenue (Details)StructuresFacts
245 - Disclosure - Remuneration to Employees and Directors (Details Textual)StructuresFacts
246 - Disclosure - The Nature of Expenses (Details)StructuresFacts
247 - Disclosure - The Nature of Expenses (Details 1)StructuresFacts
248 - Disclosure - The Nature of Expenses (Details 2)StructuresFacts
249 - Disclosure - Other Income (Details)StructuresFacts
250 - Disclosure - Other Gains and Losses (Details)StructuresFacts
251 - Disclosure - Finance Costs (Details)StructuresFacts
252 - Disclosure - Income Taxes (Details)StructuresFacts
253 - Disclosure - Income Taxes (Details 1)StructuresFacts
254 - Disclosure - Income Taxes (Details 2)StructuresFacts
255 - Disclosure - Income Taxes (Details 3)StructuresFacts
256 - Disclosure - Income Taxes (Details 4)StructuresFacts
257 - Disclosure - Income Taxes (Details 5)StructuresFacts
258 - Disclosure - Income Taxes (Details 6)StructuresFacts
259 - Disclosure - Income Taxes (Details Textual)StructuresFacts
260 - Disclosure - Earnings per Share (Details)StructuresFacts
261 - Disclosure - Earnings per Share (Details 1)StructuresFacts
262 - Disclosure - Financial Instruments (Details)StructuresFacts
263 - Disclosure - Financial Instruments (Details 1)StructuresFacts
264 - Disclosure - Financial Instruments (Details 2)StructuresFacts
265 - Disclosure - Financial Instruments (Details Textual)StructuresFacts
266 - Disclosure - Financial Risk Management (Details)StructuresFacts
267 - Disclosure - Financial Risk Management (Details 1)StructuresFacts
268 - Disclosure - Financial Risk Management (Details 2)StructuresFacts
269 - Disclosure - Financial Risk Management (Details Textual)StructuresFacts
270 - Disclosure - Capital Management (Details)StructuresFacts
271 - Disclosure - Related-party Transactions (Details)StructuresFacts
272 - Disclosure - Related-party Transactions (Details 1)StructuresFacts
273 - Disclosure - Related-party Transactions (Details 2)StructuresFacts
274 - Disclosure - Related-party Transactions (Details 3)StructuresFacts
275 - Disclosure - Related-party Transactions (Details 4)StructuresFacts
276 - Disclosure - Related-party Transactions (Details 5)StructuresFacts
277 - Disclosure - Related-party Transactions (Details 6)StructuresFacts
278 - Disclosure - Related-party Transactions (Details 7)StructuresFacts
279 - Disclosure - Related-party Transactions (Details 8)StructuresFacts
280 - Disclosure - Related-party Transactions (Details 9)StructuresFacts
281 - Disclosure - Related-party Transactions (Details Textual)StructuresFacts
282 - Disclosure - Pledged Assets (Details)StructuresFacts
283 - Disclosure - Contingent Liabilities and Commitments (Details)StructuresFacts
284 - Disclosure - Contingent Liabilities and Commitments (Details Textual)StructuresFacts
285 - Disclosure - Segment, Geographic and Revenue Information (Details)StructuresFacts
286 - Disclosure - Segment, Geographic and Revenue Information (Details 1)StructuresFacts
287 - Disclosure - Segment, Geographic and Revenue Information (Details 2)StructuresFacts
288 - Disclosure - Segment, Geographic and Revenue Information (Details 3)StructuresFacts
289 - Disclosure - Subsequent Events (Details Textual)StructuresFacts
RULES
Errors and Warnings

 

Terms

Terms shown are only those effectively used by the report instance.

#LabelData TypePeriod TypeBalance TypeAbstractPrefixName, Documentation, References
1Class of Stock [Domain]nonnum:domainItemTypedurationtrueus-gaap

ClassOfStockDomain

2Scenario, Unspecified [Domain]nonnum:domainItemTypedurationtrueus-gaap

ScenarioUnspecifiedDomain

3Property, Plant and Equipment [Table]xbrli:stringItemTypedurationtrueus-gaap

ScheduleOfPropertyPlantAndEquipmentTable

4us-gaap:StatementClassOfStockAxis (label)xbrli:stringItemTypedurationtrueus-gaap

StatementClassOfStockAxis

5Statement [Line Items]xbrli:stringItemTypedurationtrueus-gaap

StatementLineItems

6Scenario [Axis]xbrli:stringItemTypedurationtrueus-gaap

StatementScenarioAxis

7Statement [Table]xbrli:stringItemTypedurationtrueus-gaap

StatementTable

8Subsequent Event Type [Domain]nonnum:domainItemTypedurationtrueus-gaap

SubsequentEventTypeDomain

9Subsequent Event Type [Axis]xbrli:stringItemTypedurationtrueus-gaap

SubsequentEventTypeAxis

10Amendment Flagxbrli:booleanItemTypedurationdei

AmendmentFlag

11Current Fiscal Year End Datexbrli:gMonthDayItemTypedurationdei

CurrentFiscalYearEndDate

12Document Information [Line Items]xbrli:stringItemTypedurationtruedei

DocumentInformationLineItems

13Document Information [Table]xbrli:stringItemTypedurationtruedei

DocumentInformationTable

14Document Period End Datexbrli:dateItemTypedurationdei

DocumentPeriodEndDate

15Trading Symbolxbrli:normalizedStringItemTypedurationdei

TradingSymbol

16Entity Well-known Seasoned Issuerdei:yesNoItemTypedurationdei

EntityWellKnownSeasonedIssuer

17Entity Voluntary Filersdei:yesNoItemTypedurationdei

EntityVoluntaryFilers

18Entity Current Reporting Statusdei:yesNoItemTypedurationdei

EntityCurrentReportingStatus

19Entity Filer Categorydei:filerCategoryItemTypedurationdei

EntityFilerCategory

20Entity Registrant Namexbrli:normalizedStringItemTypedurationdei

EntityRegistrantName

21Entity Central Index Keydei:centralIndexKeyItemTypedurationdei

EntityCentralIndexKey

22Entity Common Stock, Shares Outstandingxbrli:sharesItemTypeinstantdei

EntityCommonStockSharesOutstanding

23Document Fiscal Year Focusxbrli:gYearItemTypedurationdei

DocumentFiscalYearFocus

24Document Fiscal Period Focusdei:fiscalPeriodItemTypedurationdei

DocumentFiscalPeriodFocus

25Document Typedei:submissionTypeItemTypedurationdei

DocumentType

26ifrs-full:AccountingProfit (label)xbrli:monetaryItemTypedurationcreditifrs-full

AccountingProfit

27Accumulated depreciation, amortisation and impairment [member]nonnum:domainItemTypedurationtrueifrs-full

AccumulatedDepreciationAmortisationAndImpairmentMember

28AOCI Attributable to Parent [Member]nonnum:domainItemTypedurationtrueifrs-full

AccumulatedOtherComprehensiveIncomeMember

29ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred (label)xbrli:monetaryItemTypeinstantcreditifrs-full

AcquisitiondateFairValueOfTotalConsiderationTransferred

30ifrs-full:ActuarialAssumptionOfDiscountRates (label)num:percentItemTypeinstantifrs-full

ActuarialAssumptionOfDiscountRates

31Actuarial assumption of discount rates [member]nonnum:domainItemTypedurationtrueifrs-full

ActuarialAssumptionOfDiscountRatesMember

32ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases (label)num:percentItemTypeinstantifrs-full

ActuarialAssumptionOfExpectedRatesOfSalaryIncreases

33Actuarial assumption of expected rates of salary increases [member]nonnum:domainItemTypedurationtrueifrs-full

ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember

34Actuarial assumptions [axis]xbrli:stringItemTypedurationtrueifrs-full

ActuarialAssumptionsAxis

35Actuarial assumptions [member]nonnum:domainItemTypedurationtrueifrs-full

ActuarialAssumptionsMember

36ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset (label)xbrli:monetaryItemTypedurationdebitifrs-full

ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset

37ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset (label)xbrli:monetaryItemTypedurationdebitifrs-full

ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset

38ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset (label)xbrli:monetaryItemTypedurationdebitifrs-full

ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset

39ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets (label)xbrli:monetaryItemTypedurationifrs-full

AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets

40ifrs-full:AdditionalProvisionsOtherProvisions (label)xbrli:monetaryItemTypedurationcreditifrs-full

AdditionalProvisionsOtherProvisions

41ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill

42ifrs-full:AdditionsOtherThanThroughBusinessCombinationsInvestmentProperty (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdditionsOtherThanThroughBusinessCombinationsInvestmentProperty

43ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment

44ifrs-full:AdjustedWeightedAverageShares (label)xbrli:sharesItemTypedurationifrs-full

AdjustedWeightedAverageShares

45ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdjustmentsForCurrentTaxOfPriorPeriod

46ifrs-full:AdjustmentsForDecreaseIncreaseInOtherCurrentAssets (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdjustmentsForDecreaseIncreaseInOtherCurrentAssets

47ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables

48ifrs-full:AdjustmentsForDividendIncome (label)xbrli:monetaryItemTypedurationcreditifrs-full

AdjustmentsForDividendIncome

49ifrs-full:AdjustmentsForFairValueGainsLosses (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdjustmentsForFairValueGainsLosses

50ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories

51ifrs-full:AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities

52ifrs-full:AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities

53ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables

54ifrs-full:AdjustmentsForIncreaseInOtherProvisionsArisingFromPassageOfTime (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdjustmentsForIncreaseInOtherProvisionsArisingFromPassageOfTime

55ifrs-full:AdjustmentsForInterestExpense (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdjustmentsForInterestExpense

56ifrs-full:AdjustmentsForInterestIncome (label)xbrli:monetaryItemTypedurationcreditifrs-full

AdjustmentsForInterestIncome

57ifrs-full:AdjustmentsForReconcileProfitLossAbstract (label)xbrli:stringItemTypedurationtrueifrs-full

AdjustmentsForReconcileProfitLossAbstract

58ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdjustmentsForUnrealisedForeignExchangeLossesGains

59ifrs-full:AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital (label)xbrli:monetaryItemTypedurationdebitifrs-full

AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital

60Aggregated measurement [member]nonnum:domainItemTypedurationtrueifrs-full

AggregatedMeasurementMember

61Aggregated time bands [member]nonnum:domainItemTypedurationtrueifrs-full

AggregatedTimeBandsMember

62All levels of fair value hierarchy [member]nonnum:domainItemTypedurationtrueifrs-full

AllLevelsOfFairValueHierarchyMember

63ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)xbrli:monetaryItemTypeinstantcreditifrs-full

AllowanceAccountForCreditLossesOfFinancialAssets

64ifrs-full:AmortisationExpense (label)xbrli:monetaryItemTypedurationdebitifrs-full

AmortisationExpense

65ifrs-full:AmountsReceivableRelatedPartyTransactions (label)xbrli:monetaryItemTypeinstantdebitifrs-full

AmountsReceivableRelatedPartyTransactions

66Analysis of age of financial assets that are past due but not impaired [text block]nonnum:textBlockItemTypedurationifrs-full

AnalysisOfAgeOfFinancialAssetsThatArePastDueButNotImpaired

67ifrs-full:ApplicableTaxRate (label)num:percentItemTypedurationifrs-full

ApplicableTaxRate

68ifrs-full:Assets (label)xbrli:monetaryItemTypeinstantdebitifrs-full

Assets

69ifrs-full:AssetsAbstract (label)xbrli:stringItemTypedurationtrueifrs-full

AssetsAbstract

70Assets and liabilities classified as held for sale [axis]xbrli:stringItemTypedurationtrueifrs-full

AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis

71Assets and liabilities not classified as held for sale [member]nonnum:domainItemTypedurationtrueifrs-full

AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember

72Assets of benefit planxbrli:monetaryItemTypeinstantdebitifrs-full

AssetsOfBenefitPlan

73Associates [member]nonnum:domainItemTypedurationtrueifrs-full

AssociatesMember

74At cost [member]nonnum:domainItemTypedurationtrueifrs-full

AtCostMember

75At fair value [member]nonnum:domainItemTypedurationtrueifrs-full

AtFairValueMember

76ifrs-full:AverageEffectiveTaxRate (label)num:percentItemTypedurationifrs-full

AverageEffectiveTaxRate

77ifrs-full:BasicEarningsLossPerShare (label)num:perShareItemTypedurationifrs-full

BasicEarningsLossPerShare

78Borrowing costs capitalisedxbrli:monetaryItemTypedurationifrs-full

BorrowingCostsCapitalised

79Borrowingsxbrli:monetaryItemTypeinstantcreditifrs-full

Borrowings

80Borrowings, adjustment to interest rate basisnum:percentItemTypeinstantifrs-full

BorrowingsAdjustmentToInterestRateBasis

81Borrowings by name [axis]xbrli:stringItemTypedurationtrueifrs-full

BorrowingsByNameAxis

82Borrowings by name [member]nonnum:domainItemTypedurationtrueifrs-full

BorrowingsByNameMember

83ifrs-full:BorrowingsInterestRate (label)num:percentItemTypeinstantifrs-full

BorrowingsInterestRate

84Bottom of range [member]nonnum:domainItemTypedurationtrueifrs-full

BottomOfRangeMember

85Buildings [member]nonnum:domainItemTypedurationtrueifrs-full

BuildingsMember

86Business combinations [axis]xbrli:stringItemTypedurationtrueifrs-full

BusinessCombinationsAxis

87ifrs-full:CapitalReserve (label)xbrli:monetaryItemTypeinstantcreditifrs-full

CapitalReserve

88ifrs-full:CapitalReserveMember (label)nonnum:domainItemTypedurationtrueifrs-full

CapitalReserveMember

89Capitalisation rate of borrowing costs eligible for capitalisationnum:percentItemTypedurationifrs-full

CapitalisationRateOfBorrowingCostsEligibleForCapitalisation

90Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]xbrli:stringItemTypedurationtrueifrs-full

CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis

91Carrying amount [member]nonnum:domainItemTypedurationtrueifrs-full

CarryingAmountMember

92ifrs-full:Cash (label)xbrli:monetaryItemTypeinstantdebitifrs-full

Cash

93ifrs-full:CashAndCashEquivalents (label)xbrli:monetaryItemTypeinstantdebitifrs-full

CashAndCashEquivalents

94ifrs-full:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPositionAbstract (label)xbrli:stringItemTypedurationtrueifrs-full

CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPositionAbstract

95ifrs-full:CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013 (label)xbrli:monetaryItemTypedurationdebitifrs-full

CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013

96ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities (label)xbrli:monetaryItemTypedurationdebitifrs-full

CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities

97ifrs-full:CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments (label)xbrli:monetaryItemTypedurationdebitifrs-full

CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments

98ifrs-full:CashFlowsFromUsedInFinancingActivities (label)xbrli:monetaryItemTypedurationdebitifrs-full

CashFlowsFromUsedInFinancingActivities

99ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract (label)xbrli:stringItemTypedurationtrueifrs-full

CashFlowsFromUsedInFinancingActivitiesAbstract

100ifrs-full:CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings (label)xbrli:monetaryItemTypedurationdebitifrs-full

CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings

101ifrs-full:CashFlowsFromUsedInInvestingActivities (label)xbrli:monetaryItemTypedurationdebitifrs-full

CashFlowsFromUsedInInvestingActivities

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CashFlowsFromUsedInInvestingActivitiesAbstract

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CashFlowsFromUsedInOperatingActivities

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CashFlowsFromUsedInOperatingActivitiesAbstract

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CashFlowsFromUsedInOperations

106Categories of financial assets [axis]xbrli:stringItemTypedurationtrueifrs-full

CategoriesOfFinancialAssetsAxis

107Categories of financial liabilities [axis]xbrli:stringItemTypedurationtrueifrs-full

CategoriesOfFinancialLiabilitiesAxis

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CategoriesOfRelatedPartiesAxis

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ChangeInValueOfForwardElementsOfForwardContractsAbstract

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ChangesInFairValueMeasurementAssetsAbstract

111Classes of assets [axis]xbrli:stringItemTypedurationtrueifrs-full

ClassesOfAssetsAxis

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ClassesOfAssetsMember

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ClassesOfFinancialAssetsAxis

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ClassesOfFinancialInstrumentsAxis

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ClassesOfFinancialInstrumentsMember

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ClassesOfFinancialLiabilitiesAxis

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ClassesOfIntangibleAssetsOtherThanGoodwillAxis

118Classes of property, plant and equipment [axis]xbrli:stringItemTypedurationtrueifrs-full

ClassesOfPropertyPlantAndEquipmentAxis

119Classes of other provisions [axis]xbrli:stringItemTypedurationtrueifrs-full

ClassesOfProvisionsAxis

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ClassesOfShareCapitalAxis

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ClassesOfShareCapitalMember

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ClosingForeignExchangeRate

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ComponentsOfEquityAxis

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ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract

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ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract

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ComprehensiveIncome

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ComprehensiveIncomeAttributableToAbstract

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ComprehensiveIncomeAttributableToNoncontrollingInterests

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ComprehensiveIncomeAttributableToOwnersOfParent

130Continuing involvement in derecognised financial assets by type of transfer [axis]xbrli:stringItemTypedurationtrueifrs-full

ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis

131Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchangedxbrli:monetaryItemTypeinstantcreditifrs-full

ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged

132Contractual commitments for acquisition of property, plant and equipmentxbrli:monetaryItemTypeinstantcreditifrs-full

ContractualCommitmentsForAcquisitionOfPropertyPlantAndEquipment

133ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset (label)xbrli:monetaryItemTypedurationdebitifrs-full

ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset

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CostOfSales

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CurrencyRiskMember

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CurrentAssets

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CurrentAssetsAbstract

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CurrentAssetsLiabilities

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CurrentDerivativeFinancialLiabilities

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CurrentFinancialAssetsAtFairValueThroughProfitOrLoss

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CurrentFinancialAssetsAtFairValueThroughProfitOrLossAbstract

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CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss

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CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract

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CurrentInventoriesHeldForSale

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CurrentLiabilities

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CurrentLiabilitiesAbstract

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CurrentMaterialsAndSuppliesToBeConsumedInProductionProcessOrRenderingServices

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CurrentPortionOfLongtermBorrowings

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CurrentProvisions

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CurrentServiceCostNetDefinedBenefitLiabilityAsset

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CurrentTaxAssetsCurrent

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CurrentTaxExpenseIncome

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CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods

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CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract

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CurrentTaxLiabilitiesCurrent

156ifrs-full:CurrentTradeReceivables (label)xbrli:monetaryItemTypeinstantdebitifrs-full

CurrentTradeReceivables

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DateOfGrantOfSharebasedPaymentArrangement

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DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised

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DeferredTaxAssets

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DeferredTaxExpenseIncomeAbstract

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DeferredTaxExpenseIncomeRecognisedInProfitOrLoss

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DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences

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DeferredTaxLiabilities

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DeferredTaxLiabilityAsset

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DefinedBenefitObligationAtPresentValue

166Defined benefit plans [axis]xbrli:stringItemTypedurationtrueifrs-full

DefinedBenefitPlansAxis

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DefinedBenefitPlansMember

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DepreciationAndAmortisationExpense

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DepreciationExpense

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DerivativeFinancialLiabilitiesUndiscountedCashFlows

171Description of accounting policy for business combinations [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory

172Description of accounting policy for earnings per share [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForEarningsPerShareExplanatory

173Description of accounting policy for employee benefits [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory

174Description of accounting policy for financial instruments [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory

175Description of accounting policy for foreign currency translation [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory

176Description of accounting policy for impairment of non-financial assets [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory

177Description of accounting policy for income tax [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForIncomeTaxExplanatory

178Description of accounting policy for intangible assets and goodwill [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory

179Description of accounting policy for investment in associates [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForInvestmentInAssociates

180Description of accounting policy for investment property [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForInvestmentPropertyExplanatory

181Description of accounting policy for investments in joint ventures [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForInvestmentsInJointVentures

182Description of accounting policy for leases [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForLeasesExplanatory

183Description of accounting policy for measuring inventories [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForMeasuringInventories

184Description of accounting policy for non-current assets or disposal groups classified as held for sale [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory

185Description of accounting policy for property, plant and equipment [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory

186Description of accounting policy for provisions [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForProvisionsExplanatory

187Description of accounting policy for recognition of revenue [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForRecognitionOfRevenue

188Description of accounting policy for segment reporting [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForSegmentReportingExplanatory

189Description of accounting policy for share-based payment transactions [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory

190Description of accounting policy for determining components of cash and cash equivalents [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents

191Disclosure of expected impact of initial application of new standards or interpretations [text block]nonnum:textBlockItemTypedurationifrs-full

DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations

192Disclosure of expected impact of initial application of new standards or interpretations [abstract]xbrli:stringItemTypedurationtrueifrs-full

DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsAbstract

193ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted (label)num:percentItemTypedurationifrs-full

DescriptionOfExpectedVolatilityShareOptionsGranted

194ifrs-full:DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits (label)xbrli:stringItemTypedurationifrs-full

DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits

195Description of interrelationships between unobservable inputs and of how they might magnify or mitigate effect of changes in unobservable inputs on fair value measurement, assetsxbrli:stringItemTypedurationifrs-full

DescriptionOfInterrelationshipsBetweenUnobservableInputsAndOfHowTheyMightMagnifyOrMitigateEffectOfChangesInUnobservableInputsOnFairValueMeasurementAssets

196Description of material leasing arrangements by lessee classified as operating leasexbrli:stringItemTypedurationifrs-full

DescriptionOfMaterialLeasingArrangementsByLesseeClassifiedAsOperatingLease

197ifrs-full:DescriptionOfOptionLifeShareOptionsGranted (label)xbrli:decimalItemTypedurationifrs-full

DescriptionOfOptionLifeShareOptionsGranted

198ifrs-full:DescriptionOfPeriodsWhenCashFlowsExpectedToOccur (label)xbrli:stringItemTypedurationifrs-full

DescriptionOfPeriodsWhenCashFlowsExpectedToOccur

199ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted (label)num:percentItemTypedurationifrs-full

DescriptionOfRiskFreeInterestRateShareOptionsGranted

200Description of valuation techniques used in fair value measurement, assetsxbrli:stringItemTypedurationifrs-full

DescriptionOfValuationTechniquesUsedInFairValueMeasurementAssets

201ifrs-full:DilutedEarningsLossPerShare (label)num:perShareItemTypedurationifrs-full

DilutedEarningsLossPerShare

202ifrs-full:DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares (label)xbrli:sharesItemTypedurationifrs-full

DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares

203ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares (label)xbrli:sharesItemTypedurationifrs-full

DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares

204Directors' remuneration expensexbrli:monetaryItemTypedurationdebitifrs-full

DirectorsRemunerationExpense

205Disclosure of additional information about defined benefit plans [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfAdditionalInformationAboutDefinedBenefitPlansExplanatory

206ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory

207Disclosure of authorisation of financial statements [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfAuthorisationOfFinancialStatementsExplanatory

208ifrs-full:DisclosureOfAvailableforsaleAssetsExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfAvailableforsaleAssetsExplanatory

209Disclosure of basis of consolidation [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfBasisOfConsolidationExplanatory

210Disclosure of basis of preparation of financial statements [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory

211ifrs-full:DisclosureOfBorrowingCostsExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfBorrowingCostsExplanatory

212ifrs-full:DisclosureOfCashAndBankBalancesAtCentralBanksExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfCashAndBankBalancesAtCentralBanksExplanatory

213Disclosure of cash and cash equivalents [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfCashAndCashEquivalentsExplanatory

214Disclosure of changes in accounting estimates [abstract]xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfChangesInAccountingEstimatesAbstract

215Disclosure of changes in accounting estimates [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfChangesInAccountingEstimatesExplanatory

216Disclosure of collateral [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfCollateralExplanatory

217Disclosure of commitments and contingent liabilities [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory

218Disclosure of debt instruments [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfDebtSecuritiesExplanatory

219ifrs-full:DisclosureOfDeferredTaxesExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfDeferredTaxesExplanatory

220ifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfDerivativeFinancialInstrumentsExplanatory

221ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory

222Disclosure of detailed information about hedging instruments [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory

223ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory

224ifrs-full:DisclosureOfDetailedInformationAboutInvestmentPropertyExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfDetailedInformationAboutInvestmentPropertyExplanatory

225ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory

226Disclosure of earnings per share [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfEarningsPerShareExplanatory

227Disclosure of effects of changes in parent's ownership interest in subsidiary that do not result in loss of control on equity attributable to owners of parent [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfEffectsOfChangesInParentsOwnershipInterestInSubsidiaryThatDoNotResultInLossOfControlOnEquityAttributableToOwnersOfParentExplanatory

228Disclosure of employee benefits [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfEmployeeBenefitsExplanatory

229ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfEntitysReportableSegmentsExplanatory

230Disclosure of events after reporting period [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfEventsAfterReportingPeriodExplanatory

231Disclosure of expenses by nature [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfExpensesByNatureExplanatory

232Disclosure of finance cost [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfFinanceCostExplanatory

233Disclosure of finance lease and operating lease by lessee [table]xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable

234Disclosure of financial assets [abstract]xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfFinancialAssetsAbstract

235Disclosure of financial instruments [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfFinancialInstrumentsExplanatory

236Disclosure of financial liabilities [abstract]xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfFinancialLiabilitiesAbstract

237Disclosure of financial risk management [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfFinancialRiskManagementExplanatory

238ifrs-full:DisclosureOfGeographicalAreasExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfGeographicalAreasExplanatory

239Disclosure of income tax [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfIncomeTaxExplanatory

240Disclosure of information about employees [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfInformationAboutEmployeesExplanatory

241Disclosure of detailed information about intangible assets [abstract]xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfIntangibleAssetsAbstract

242Disclosure of intangible assets [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfIntangibleAssetsExplanatory

243Disclosure of detailed information about intangible assets [line items]xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfIntangibleAssetsLineItems

244Disclosure of detailed information about intangible assets [table]xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfIntangibleAssetsTable

245ifrs-full:DisclosureOfInterestsInAssociatesExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfInterestsInAssociatesExplanatory

246ifrs-full:DisclosureOfInterestsInOtherEntitiesExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfInterestsInOtherEntitiesExplanatory

247ifrs-full:DisclosureOfInventoriesExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfInventoriesExplanatory

248Disclosure of detailed information about investment property [abstract]xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfInvestmentPropertyAbstract

249Disclosure of investment property [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfInvestmentPropertyExplanatory

250Disclosure of detailed information about investment property [line items]xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfInvestmentPropertyLineItems

251Disclosure of detailed information about investment property [table]xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfInvestmentPropertyTable

252ifrs-full:DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory

253ifrs-full:DisclosureOfJointVenturesExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfJointVenturesExplanatory

254Disclosure of leases [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfLeasesExplanatory

255ifrs-full:DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesAbstract (label)xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesAbstract

256ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesAbstract (label)xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesAbstract

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DisclosureOfMaturityAnalysisOfFinanceLeasePaymentsReceivableExplanatory

258ifrs-full:DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory

259Disclosure of notes and other explanatory information [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfNotesAndOtherExplanatoryInformationExplanatory

260Disclosure of objectives, policies and processes for managing capital [abstract]xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract

261Disclosure of objectives, policies and processes for managing capital [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory

262ifrs-full:DisclosureOfOperatingSegmentsExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfOperatingSegmentsExplanatory

263Disclosure of other assets [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfOtherAssetsExplanatory

264Disclosure of other current liabilities [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfOtherCurrentLiabilitiesExplanatory

265Disclosure of other non-current liabilities [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfOtherNoncurrentLiabilitiesExplanatory

266Disclosure of other operating income [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfOtherOperatingIncomeExplanatory

267Disclosure of other provisions [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfOtherProvisionsExplanatory

268ifrs-full:DisclosureOfProductsAndServicesExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfProductsAndServicesExplanatory

269ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract (label)xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfPropertyPlantAndEquipmentAbstract

270Disclosure of property, plant and equipment [text block]nonnum:textBlockItemTypedurationifrs-full

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271Disclosure of detailed information about property, plant and equipment [line items]xbrli:stringItemTypedurationtrueifrs-full

DisclosureOfPropertyPlantAndEquipmentLineItems

272Disclosure of related party [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfRelatedPartyExplanatory

273ifrs-full:DisclosureOfReservesAndOtherEquityInterestExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfReservesAndOtherEquityInterestExplanatory

274Disclosure of revenue [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfRevenueExplanatory

275ifrs-full:DisclosureOfSegmentsMajorCustomersExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfSegmentsMajorCustomersExplanatory

276Disclosure of share capital, reserves and other equity interest [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory

277Disclosure of share-based payment arrangements [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfSharebasedPaymentArrangementsExplanatory

278Disclosure of significant unobservable inputs used in fair value measurement of assets [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory

279Disclosure of significant accounting policies [text block]nonnum:textBlockItemTypedurationifrs-full

DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory

280ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfTradeAndOtherReceivablesExplanatory

281ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory (label)nonnum:textBlockItemTypedurationifrs-full

DisclosureOfTransactionsBetweenRelatedPartiesExplanatory

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NotLaterThanOneYearMember

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NotionalAmount

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NumberOfOutstandingShareOptions

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OtherProvisions

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OtherReserves

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OtherRevenue

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OtherShorttermEmployeeBenefits

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ParValuePerShare

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PastDueStatusAxis

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PastDueStatusMember

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PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset

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PaymentsToAcquireOrRedeemEntitysShares

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PercentageOfEntitysRevenue

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PlanAssetsAtFairValue

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PlanAssetsMember

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PortionOfConsiderationPaidReceivedConsistingOfCashAndCashEquivalents

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PresentValueOfDefinedBenefitObligationMember

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PrincipalPlaceOfBusinessOfAssociate

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ProductsAndServicesAxis

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ProductsAndServicesMember

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ProfitLoss

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ProfitLossAttributableToAbstract

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ProfitLossAttributableToNoncontrollingInterests

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ProfitLossAttributableToOwnersOfParent

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ProfitLossBeforeTax

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PropertyPlantAndEquipment

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PropertyPlantAndEquipmentMember

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ProportionOfOwnershipInterestInAssociate

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ProportionOfOwnershipInterestInJointVenture

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ProportionOfOwnershipInterestInSubsidiary

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PurchaseOfAvailableforsaleFinancialAssets

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PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities

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PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod

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PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities

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RangeAxis

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RangesMember

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ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsBeforeTax

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RelatedPartiesMember

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RentalIncome

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RepairsAndMaintenanceExpense

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ResearchAndDevelopmentExpense

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ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember

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ReserveOfEquityComponentOfConvertibleInstrumentsMember

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ReserveOfExchangeDifferencesOnTranslationMember

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ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember

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ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember

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RetainedEarnings

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RetainedEarningsMember

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Revenue

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RevenueFromDividends

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RevenueFromGovernmentGrants

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RevenueFromRenderingOfServicesRelatedPartyTransactions

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RevenueFromSaleOfGoodsRelatedPartyTransactions

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SalesFairValueMeasurementAssets

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SegmentConsolidationItemsAxis

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SegmentsAxis

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SegmentsMember

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SellingGeneralAndAdministrativeExpense

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SharePremium

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SharePremiumMember

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ShorttermBorrowings

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ShorttermDepositsClassifiedAsCashEquivalents

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ShorttermInvestmentsClassifiedAsCashEquivalents

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SignificantInvestmentsInAssociatesAxis

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SignificantInvestmentsInSubsidiariesAxis

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SocialSecurityContributions

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StatementOfCashFlowsAbstract

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StatementOfComprehensiveIncomeAbstract

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StatementOfFinancialPositionAbstract

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StatementOfIFRSCompliance

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StatutoryReserveMember

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TaxEffectFromChangeInTaxRate

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TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods

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TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss

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TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis

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TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember

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TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures

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TerminationBenefitsExpense

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TopOfRangeMember

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TradeAndOtherCurrentPayablesToRelatedParties

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TradeAndOtherCurrentPayablesToTradeSuppliers

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TradeAndOtherReceivablesDueFromRelatedParties

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TradeReceivablesMember

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TransfersIntoLevel3OfFairValueHierarchyAssets

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TypesOfFinancialLiabilitiesAxis

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TypesOfInterestRatesAxis

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TypesOfRisksAxis

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TypesOfRisksMember

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TypesOfTransferMember

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UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill

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WagesAndSalaries

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WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement

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WeightedAverageFairValueAtMeasurementDateShareOptionsGranted

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WeightedAverageShares

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WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract

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WorkInProgress

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WritedownsReversalsOfInventories

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DocumentAndEntityInformationAbstract

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CurrentAccountsReceivablesDueFromRelatedParties

The amount of account receivables due from related parties.

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AppropriationOfEarningsAbstract

648auo:InventoryWritedowns (label)xbrli:monetaryItemTypedurationdebitfalseauo

InventoryWritedowns

The amount of expense recognised related to the write-down of inventories to net realisable value. [Refer: Inventories]

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DisclosureOfOrganizationExplanatoryAbstract

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DisclosureOfAuthorisationOfFinancialStatementsAbstract

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AdjustmentsForDecreaseIncreaseInReceivablesFromRelatedParties

Adjustments for decrease (increase) in receivable from related parties to reconcile profit (loss) to net cash flow from (used in) operating activities.

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AdjustmentsForDecreaseIncreaseInPayableToRelatedParties

Adjustments for decrease (increase) in payable to related parties to reconcile profit (loss) to net cash flow from (used in) operating activities.

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DisclosureOfSignificantAccountingPoliciesAbstract

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ProceedsFromReturnOfCapitalByAvailableforsaleFinancialAssets

The cash inflow from return of capital by available-for-sale financial assets.

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PaymentToAcquireConvertibleBondsPayable

The cash outflow to acquire convertible bonds payable.

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NetChangeOfNocontrollingInterestAndOthers

The amount of change in cash flow due to net change in non-controlling interest and others.

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DisclosureOfCashAndCashEquivalentsAbstract

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DisclosureOfDerivativeFinancialInstrumentsAbstract

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DescriptionOfAccountingPolicyForClassificationOfCurrentAndNonCurrentAssetsAndLiabilitiesTextBlock

The description of the entity's accounting policy for classification of current and non-current assets and liabilities.

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DescriptionOfAccountingPolicyForLongTermPrepaidRentTextBlock

The description of the entity's accounting policy for long-term prepaid rent.

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DisclosureOfAvailableforsaleFinancialAssetsAbstract

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DisclosureOfDetailedInformationAboutSubsidiariesInConsolidatedFinancialStatementsTextBlock

The Disclosure Of Detailed Information About Subsidiaries In Consolidated Financial Statements

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DisclosureOfSignificantAccountingPoliciesTable

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SpaceMoneyIncMember

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DarwinPrecisionsCorporationMember

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FargenPowerCorporationMember

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LigenPowerCorporationMember

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TrongenPowerCorporationMember

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AuoCrystalMalaysiaSdnBhdMember

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MsetekCoLtdMember

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AuOptronicsCorporationAmericaMember

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AuOptronicsCorporationJapanMember

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AuOptronicsEuropeBvMember

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AuOptronicsKoreaLtdMember

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AuOptronicsCzechSroMember

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AuOptronicsShanghaiCoLtdMember

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AuOptronicsXiamenCorpMember

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AuOptronicsSuzhouCorpLtdMember

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AuOptronicsManufacturingShanghaiCorpMember

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AfpdPteLtdMember

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AuOptronicsKunshanCoLtdMember

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AuVistaIncMember

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BriviewXiamenCorpMember

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ForthouseElectronicsSuzhouCoLtdMember

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FortechElectronicsSuzhouCoLtdMember

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FortechOptronicsXiamenCoLtdMember

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SuzhouForplaxOptronicsCoLtdMember

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FortechElectronicsKunshanCoLtdMember

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FullLuckWujiangPrecisionsCoLtdMember

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DarwinPrecisionsSlovakiaSroMember

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DarwinPrecisionsSuzhouCorpMember

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DarwinPrecisionsXiamenCorpMember

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DarwinPrecisionsChengduCorpMember

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BriviewHefeiCoLtdMember

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AuoEnergyTianjinCorpMember

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AuoGreenEnergyAmericaCorpMember

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DisclosureOfSignificantAccountingPoliciesLineItems

The Disclosure of significant accounting policies

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MalaysiaMember

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TaiwanRocMember

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JapanMember

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UnitedStatesMember

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NetherlandsMember

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SouthKoreaMember

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SingaporeMember

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CzechRepublicMember

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PrcMember

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SlovakiaRepublicMember

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BviMember

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MauritiusMember

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SamoaMember

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HongKongMember

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CurrentFinancialAssetsAtFairValueThroughProfitOrLossTable

The Current financial assets at fair value through profit or loss.

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MaturityDateJanFeb2017Member

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MaturityDateJanMar2017Member

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MaturityDateMar2017Member

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MaturityDateJanJun2017Member

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MaturityDateJanApr2017Member

718Maturity Date Jan 2017 [Member]nonnum:domainItemTypedurationtrueauo

MaturityDateJan2017Member

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MaturityDateJanJul2017Member

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ContractItemAxis

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ContractItemDomain

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SellUsdBuyNtdMember

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SellUsdBuyJpyMember

724Sell NTD Buy JPY [Member]nonnum:domainItemTypedurationtrueauo

SellNtdBuyJpyMember

725Sell USD Buy CNY [Member]nonnum:domainItemTypedurationtrueauo

SellUsdBuyCnyMember

726Sell EUR Buy JPY [Member]nonnum:domainItemTypedurationtrueauo

SellEurBuyJpyMember

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SellEurBuyCzkMember

728Sell EUR Buy USD [Member]nonnum:domainItemTypedurationtrueauo

SellEurBuyUsdMember

729Sell USD Buy MYR [Member]nonnum:domainItemTypedurationtrueauo

SellUsdBuyMyrMember

730Sell JPY Buy NTD [Member]nonnum:domainItemTypedurationtrueauo

SellJpyBuyNtdMember

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SellCnyBuyUsdMember

732Sell EUR Buy NTD [Member]nonnum:domainItemTypedurationtrueauo

SellEurBuyNtdMember

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SellCnyBuyJpyMember

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SellUsdBuySgdMember

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CurrentFinancialAssetsAtFairValueThroughProfitOrLossLineItems

The Current financial assets at fair value through profit or loss.

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SandaMaterialsCorporationMember

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AuoCrystalCorpMember

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KonlyMember

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ActwMember

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SdmcMember

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NetGainsLossesOfForeignCurrencyForwardContractsTable

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NetGainsLossesOfForeignCurrencyForwardContractsLineItems

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DesignatedAsCashFlowHedgesAndHedgingDerivativeFinancialInstrumentsTable

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DesignatedAsCashFlowHedgesAndHedgingDerivativeFinancialInstrumentsLineItems

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DescriptionOfPeriodsWhenCashflowsExpectedToRecognized

The description of periods when unrealized gain (loss) on cash flows are expected to be recognized in the statement of comprehensive income.

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DerivativeFinancialInstrumentsAndHedgingInstrumentsTable

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DerivativeFinancialInstrumentsAndHedgingInstrumentsLineItems

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AvailableforsaleFinancialAssetsnoncurrentTable

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DisclosureOfAvailableforsaleFinancialAssetsLineItems

The disclosure of available-for-sale financial assets.

750auo:GainsLossesOnDisposalsOfAvailableforsaleFinancialAssets (label)xbrli:monetaryItemTypedurationcreditfalseauo

GainsLossesOnDisposalsOfAvailableforsaleFinancialAssets

The gains (losses) on disposals of available-for-sale financial assets.

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AmountOfSensitivityOfAvailableForSaleSecuritiesToChangesInEquityPrice

Increase or decrease in other comprehensive income while the equity price of available for sale securities appreciates or depreciates by 10%.

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DisclosureOfNotesAndAccountsReceivableAbstract

753auo:TradeAndOtherReceivablesCurrentGross (label)xbrli:monetaryItemTypeinstantdebitfalseauo

TradeAndOtherReceivablesCurrentGross

The gross amount of current trade receivables

754auo:AllowanceForSalesReturnsAndDiscounts (label)xbrli:monetaryItemTypeinstantcreditfalseauo

AllowanceForSalesReturnsAndDiscounts

The amount of a valuation allowance for sales returns and discounts.

755auo:NotesAndAccountsReceivableNetIncludingRelatedParties (label)xbrli:monetaryItemTypeinstantdebitfalseauo

NotesAndAccountsReceivableNetIncludingRelatedParties

The net amount of notes and accounts receivable including related parties.

756Disclosure of Notes and Accounts Receivable [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfNotesAndAccountsReceivableTable

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NotLaterThanTwoMonthsMember

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LaterThanTwoMonthsAndNotLaterThanSixMonthsMember

759auo:LaterThanSixMonthMember (label)nonnum:domainItemTypedurationtrueauo

LaterThanSixMonthMember

760auo:DisclosureOfNotesAndAccountsReceivableLineItems (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfNotesAndAccountsReceivableLineItems

The disclosure of Notes and Accounts Receivable.

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ChinatrustCommercialBankMember

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TaishinBankMember

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BankOfTaiwanMember

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TaipeiFubonBankMember

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ESunBankMember

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DbsBankMember

767auo:AdvancePaidForTransferOfAssets (label)xbrli:monetaryItemTypeinstantdebitfalseauo

AdvancePaidForTransferOfAssets

Represents the amount of advance paid for transfer of assets.

768Disclosure of Accounts Receivable [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfAccountsReceivableTable

769auo:DisclosureOfAccountsReceivableLineItems (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfAccountsReceivableLineItems

The disclosure of Accounts Receivable.

770auo:PaymentTermsGrantedToCustomers (label)xbrli:durationItemTypedurationfalseauo

PaymentTermsGrantedToCustomers

The payment terms which is granted to customers during the period.

771auo:DisclosureOfInventoriesAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfInventoriesAbstract

772auo:AmountOfInventoriesRecognisedAsCostOfSalesDuringPeriod (label)xbrli:monetaryItemTypedurationdebitfalseauo

AmountOfInventoriesRecognisedAsCostOfSalesDuringPeriod

The amount of inventories recognised as cost of sales during the period.

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DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract

774Disclosure of Investments in equity-accounted Investees [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfInvestmentsInEquityaccountedInvesteesTable

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LextarElectronicsCorpMember

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RaydiumSemiconductorCorporationMember

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DaxinMaterialsCorpMember

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OtherAssociateMember

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DisclosureOfInvestmentsInEquityaccountedInvesteesLineItems

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PrincipalActivitiesOfBusinessAssociate

The principal activities of an associate.

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SunpowerTechnologyLtdMember

782AUO SunPower Sdn. Bhd [Member]nonnum:domainItemTypedurationtrueauo

AuoSunpowerSdnBhdMember

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OtherTangibleOrIntangibleAssetsTransferredToAcquireInterestsInJointVentures

The fair value of other tangible or intangible assets transferred as consideration in an acquisition of interests in joint ventures.

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ConsiderationTransferredFromSalesOfInterestsInJointVentures

The consideration transferred from sales of interests in joint ventures.

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TotalOutstandingDisposalConsideration

Total outstanding disposal consideration for sales of interests in joint ventures which will be received in installments.

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DisposalConsiderationWillBeReceivedInCashIn2018

The disposal consideration for sales of interests in joint ventures which will be received in cash in 2018.

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DisposalConsiderationWillBeReceivedInCashIn2019

The disposal consideration for sales of interests in joint ventures which will be received in cash in 2019.

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DisposalConsiderationWillBeReceivedInCashIn2020

The disposal consideration for sales of interests in joint ventures which will be received in cash in 2020.

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PatentAndTechnologyFeeMember

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ReclassificationAndEffectOfChangeInExchangeRate

Reclassification and effect of change in exchange rate.

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DisclosureOfOtherCurrentAssetsAndOtherNoncurrentAssetsAbstract

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OtherCurrentAssetsAndOtherNoncurrentAssetsTable

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PrepaymentForEquipmentMember

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RefundableAndOverpaidTaxMember

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LongtermPrepaidRentsMember

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PrepaymentsForPurchasesMember

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LongTermReceivablesMember

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RefundableDepositsMember

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OthersMember

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OtherCurrentAssetsAndOtherNoncurrentAssetsLineItems

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DisclosureOfShortTermBorrowingsAbstract

802Disclosure of detailed information about short term borrowings [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfDetailedInformationAboutShortTermBorrowingsTable

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ShortTermBorrowingsMember

804Disclosure of detailed information about short term borrowings [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfDetailedInformationAboutShortTermBorrowingsLineItems

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DarwinPrecisionsMember

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ForhouseInternationalMember

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PrimeForwardMember

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FullLuckPrecisionMember

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ForefrontMember

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TaishinMember

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DisclosureOfConvertibleBondsPayableAbstract

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DisclosureOfConvertibleBondsPayableTable

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UnsecuredOverseasConvertibleCorporateBondsMember

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DisclosureOfConvertibleBondsPayableLineItems

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ConvertibleBondsCouponRate

The coupon rate of convertible bonds.

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ConvertibleBondsMaturity

The maturity of convertible bonds.

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PurchaseOfConvertibleBondsParValue

The par value of purchase of convertible bonds.

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PurchaseAmountOfConvertibleBonds

The cash outflow to purchase the convertible bonds, classified as financing activities.

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DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentTable

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MachineryAndEquipmentsMember

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OtherEquipmentMember

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PrepaymentsForPurchaseOfLandAndEquipmentAndConstructionInProgressMember

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DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentLineItems

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NonirrigatedFarmlandMember

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DisplaySegmentMember

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SolarSegmentMember

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PolysiliconCguMember

828auo:DisclosureOfLongTermAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfLongTermAbstract

829Disclosure of detailed information about long term borrowings [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfDetailedInformationAboutLongTermBorrowingsTable

830auo:MaturityPeriodOneMember (label)nonnum:domainItemTypedurationtrueauo

MaturityPeriodOneMember

831auo:MaturityPeriodTwoMember (label)nonnum:domainItemTypedurationtrueauo

MaturityPeriodTwoMember

832auo:MaturityPeriodThreeMember (label)nonnum:domainItemTypedurationtrueauo

MaturityPeriodThreeMember

833auo:MaturityPeriodFourMember (label)nonnum:domainItemTypedurationtrueauo

MaturityPeriodFourMember

834auo:MaturityPeriodFiveMember (label)nonnum:domainItemTypedurationtrueauo

MaturityPeriodFiveMember

835auo:MaturityPeriodSixMember (label)nonnum:domainItemTypedurationtrueauo

MaturityPeriodSixMember

836auo:MaturityPeriodSevenMember (label)nonnum:domainItemTypedurationtrueauo

MaturityPeriodSevenMember

837auo:MaturityPeriodEightMember (label)nonnum:domainItemTypedurationtrueauo

MaturityPeriodEightMember

838auo:MaturityPeriodNineMember (label)nonnum:domainItemTypedurationtrueauo

MaturityPeriodNineMember

839auo:MaturityPeriodTenMember (label)nonnum:domainItemTypedurationtrueauo

MaturityPeriodTenMember

840auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)xbrli:monetaryItemTypeinstantcreditfalseauo

CurrentAndNonCurrentPortionOfLongTermBarrowings

It represent the value of current and non current portion of long term barrowings.

841auo:UnamortizedBorrowingCosts (label)xbrli:monetaryItemTypeinstantdebitfalseauo

UnamortizedBorrowingCosts

The amount of unamortized borrowing cost.

842auo:DisclosureOfProvisionsAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfProvisionsAbstract

843Disclosure of movements in provisions [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfMovementsInProvisionsTable

844Disclosure of movements in provisions [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfMovementsInProvisionsLineItems

845auo:DisclosureOfOperatingLeasesAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfOperatingLeasesAbstract

846auo:DisclosureOfNoncancellableLeasePaymentsTable (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfNoncancellableLeasePaymentsTable

847auo:DisclosureOfNoncancellableLeasePaymentsLineItems (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfNoncancellableLeasePaymentsLineItems

848auo:DisclosureOfNoncancellableLeaseReceivablesTable (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfNoncancellableLeaseReceivablesTable

849auo:DisclosureOfNoncancellableLeaseReceivablesLineItems (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfNoncancellableLeaseReceivablesLineItems

850Disclosure of operating leases [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfOperatingLeasesLineItems

851Hsinchu Science Park Administration Bureaus [Member]nonnum:domainItemTypedurationtrueauo

HsinchuScienceParkAdministrationBureausMember

852auo:RedemptionPricePercentage (label)num:percentItemTypeinstantfalseauo

RedemptionPricePercentage

The redemption price percentage of convertible bonds on maturity.

853auo:ScheduleOfProvisionsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfProvisionsTextBlock

The schedule of provisions.

854auo:ScheduleOfLongTermBorrowingsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfLongTermBorrowingsTextBlock

The Schedule of long term borrowings.

855auo:ScheduleOfShortTermBorrowingsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfShortTermBorrowingsTextBlock

The disclosure of detailed information about short term borrowings

856auo:ScheduleOfOtherAssetsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfOtherAssetsTextBlock

The schedule of other assets.

857auo:DisclosureOfEmployeeBenefitsAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfEmployeeBenefitsAbstract

858auo:ScheduleOfNetDefinedBenefitLiabilityTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfNetDefinedBenefitLiabilityTextBlock

The Schedule of net defined benefit liability.

859auo:ScheduleOfReconciliationForNetDefinedBenefitLiabilityAndItsComponentsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfReconciliationForNetDefinedBenefitLiabilityAndItsComponentsTextBlock

The schedule of reconciliation for net defined benefit liability and its components.

860auo:ScheduleOfPrincipalActuarialAssumptionsUsedTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfPrincipalActuarialAssumptionsUsedTextBlock

The schedule of principal actuarial assumptions used.

861Disclosure Of Employee Benefits Explanatory [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfEmployeeBenefitsExplanatoryTable

862Disclosure Of Employee Benefits Explanatory [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfEmployeeBenefitsExplanatoryLineItems

863Disclosure of reconciliation for net defined benefit liability and its components [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfReconciliationForNetDefinedBenefitLiabilityAndItsComponentsTable

864auo:DisclosureOfReconciliationForNetDefinedBenefitLiabilityAndItsComponentsLineItems (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfReconciliationForNetDefinedBenefitLiabilityAndItsComponentsLineItems

865auo:DefinedBenefitPlanIncludedInProfitLossAbstract (label)xbrli:stringItemTypedurationtrueauo

DefinedBenefitPlanIncludedInProfitLossAbstract

866auo:DefinedBenefitPlanIncludedInProfitLoss (label)xbrli:monetaryItemTypedurationcreditfalseauo

DefinedBenefitPlanIncludedInProfitLoss

The amount of defined benefit plan gain(loss) included in profit(loss).

867auo:DefinedBenefitPlanIncludedInOtherComprehensiveIncomeLossAbstract (label)xbrli:stringItemTypedurationtrueauo

DefinedBenefitPlanIncludedInOtherComprehensiveIncomeLossAbstract

868auo:DefinedBenefitPlanActuarialLossGainAbstract (label)xbrli:stringItemTypedurationtrueauo

DefinedBenefitPlanActuarialLossGainAbstract

869auo:ReturnOnPlanAssetsExcludingInterestIncomeNetDefinedBenefitLiabilityAsset (label)xbrli:monetaryItemTypedurationdebitfalseauo

ReturnOnPlanAssetsExcludingInterestIncomeNetDefinedBenefitLiabilityAsset

The decrease (increase) in the net defined benefit liability (asset) resulting from the return on plan assets which excludes interest income.

870auo:DefinedBenefitPlanOtherAbstract (label)xbrli:stringItemTypedurationtrueauo

DefinedBenefitPlanOtherAbstract

871Disclosure of principal actuarial assumptions [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfPrincipalActuarialAssumptionsTable

872Disclosure of principal actuarial assumptions [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfPrincipalActuarialAssumptionsLineItems

873auo:DisclosureOfAffectedDefinedBenefitObligationByAmountsTable (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfAffectedDefinedBenefitObligationByAmountsTable

874auo:DisclosureOfAffectedDefinedBenefitObligationByAmountsLineItems (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfAffectedDefinedBenefitObligationByAmountsLineItems

875auo:DisclosureOfCapitalAndOtherComponentsOfEquityAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfCapitalAndOtherComponentsOfEquityAbstract

876auo:DisclosureOfAppropriationOfEarningsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

DisclosureOfAppropriationOfEarningsTextBlock

Disclosure of detailed information relating to appropriation of profit.

877Disclosure of balance of capital surplus [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfBalanceOfCapitalSurplusTable

878auo:MiscellaneousComponentOfEquityAxis (label)xbrli:stringItemTypedurationtrueauo

MiscellaneousComponentOfEquityAxis

879auo:DisclosureOfDistributionOfEarningsAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfDistributionOfEarningsAbstract

880auo:IncreaseDecreaseThroughTransferToLegalReserve (label)xbrli:monetaryItemTypedurationcreditfalseauo

IncreaseDecreaseThroughTransferToLegalReserve

The amount of increase/decrease in legal reserve during the period.

881auo:DisclosureOfRevenueAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfRevenueAbstract

882auo:AppropriationOfEarnings (label)xbrli:monetaryItemTypedurationdebitfalseauo

AppropriationOfEarnings

The amount of earnings appropriated during the period.

883Disclosure other components of equity [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOtherComponentsOfEquityTable

884Disclosure of Non-controlling interests, net of tax [Abstract]xbrli:stringItemTypedurationtrueauo

DisclosureOfNoncontrollingInterestsNetOfTaxAbstract

885auo:EquityAttributableToNoncontrollingInterestsAbstract (label)xbrli:stringItemTypedurationtrueauo

EquityAttributableToNoncontrollingInterestsAbstract

886auo:AdjustmentOfChangesInOwnershipOfNoncontrollingInterests (label)xbrli:monetaryItemTypedurationdebitfalseauo

AdjustmentOfChangesInOwnershipOfNoncontrollingInterests

The amount of adjustments due to changes in noncontrolling interest's ownership.

887auo:ForeignCurrencyTranslationDifferencesAttributableToNoncontrollingInterest (label)xbrli:monetaryItemTypedurationcreditfalseauo

ForeignCurrencyTranslationDifferencesAttributableToNoncontrollingInterest

The amount of foreign currency translation differences attributable to non-controlling interest.

888auo:RemeasurementOfDefinedBenefitPlansAttributableToNoncontrollingInterests (label)xbrli:monetaryItemTypedurationcreditfalseauo

RemeasurementOfDefinedBenefitPlansAttributableToNoncontrollingInterests

The amount of adjustments to noncontrolling interest due to remeasurement of defined benefit obligations.

889Disclosure of Capital and Other Components of Equity [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfCapitalAndOtherComponentsOfEquityTable

890auo:AmericanDepositarySharesMember (label)nonnum:domainItemTypedurationtrueauo

AmericanDepositarySharesMember

891Disclosure Of Capital And Other Components Of Equity [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfCapitalAndOtherComponentsOfEquityLineItems

892auo:AuthorizedCapital (label)xbrli:monetaryItemTypeinstantcreditfalseauo

AuthorizedCapital

The maximum amount of share capital that the entity is authorized by its constitutional documents to issue to shareholders.

893auo:CapitalSurplusCapitalizedRate (label)num:percentItemTypeinstantfalseauo

CapitalSurplusCapitalizedRate

Capital surplus capitalized calculated as a percentage of additional paid in capital.

894auo:LegalReserveDistributionDescription (label)xbrli:stringItemTypedurationfalseauo

LegalReserveDistributionDescription

The description for legal reserve distribution.

895auo:DisclosureOfSharebasedPaymentsAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfSharebasedPaymentsAbstract

896Disclosure of outstanding stock options [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfOutstandingStockOptionsTable

897auo:PlanNamesAxis (label)xbrli:stringItemTypedurationtrueauo

PlanNamesAxis

898Plan Names [Domain]nonnum:domainItemTypedurationtrueauo

PlanNamesDomain

899auo:EmployeeStockOptionPlan2011Member (label)nonnum:domainItemTypedurationtrueauo

EmployeeStockOptionPlan2011Member

900Option Plans [Axis]xbrli:stringItemTypedurationtrueauo

OptionPlansAxis

901Disclosure of terms and conditions relating to employee stock option plan [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfTermsAndConditionsRelatingToEmployeeStockOptionPlanTable

902auo:EmployeeStockOptionPlan2014Member (label)nonnum:domainItemTypedurationtrueauo

EmployeeStockOptionPlan2014Member

903Option Plan [Axis]xbrli:stringItemTypedurationtrueauo

OptionPlanAxis

904auo:WeightedAverageRemainingContractualLifeOfShareOptionsIssued (label)xbrli:stringItemTypedurationfalseauo

WeightedAverageRemainingContractualLifeOfShareOptionsIssued

The weighted average remaining contractual life of the share options issued.

905auo:ShareBasedArrangementsExercisablePeriodShareOptionsIssued (label)xbrli:stringItemTypedurationfalseauo

ShareBasedArrangementsExercisablePeriodShareOptionsIssued

The exercisable period of the options issued.

906Disclosure of valuation information [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfValuationInformationTable

907Option Plans [Domain]nonnum:domainItemTypedurationtrueauo

OptionPlansDomain

908ACTW Option Plan [Member]nonnum:domainItemTypedurationtrueauo

ActwOptionPlanMember

909Disclosure of Share-based Payments [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfSharebasedPaymentsTable

910auo:DisclosureOfRemunerationToEmployeesAndDirectorsAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfRemunerationToEmployeesAndDirectorsAbstract

911auo:EmployeesMinimumRemunerationPercentage (label)num:percentItemTypedurationfalseauo

EmployeesMinimumRemunerationPercentage

The minimum rate of percentage of remuneration paid or payable to the entity's employees.

912auo:DirectorsMaximumRemunerationPercentage (label)num:percentItemTypedurationfalseauo

DirectorsMaximumRemunerationPercentage

The maximum rate of percentage of remuneration paid or payable to the entity's directors.

913auo:DisclosureOfExpensesByNatureExplanatoryAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfExpensesByNatureExplanatoryAbstract

The disclosure of expenses by nature explanatory

914auo:ScheduleOfExpensesByNatureTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfExpensesByNatureTextBlock

The schedule of expenses by nature explanatory.

915Disclosure Of Expenses By Nature Explanatory [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfExpensesByNatureExplanatoryTable

916auo:IncomeStatementAxis (label)xbrli:stringItemTypedurationtrueauo

IncomeStatementAxis

917Income Statement [Domain]nonnum:domainItemTypedurationtrueauo

IncomeStatementDomain

918auo:CostOfSaleMember (label)nonnum:domainItemTypedurationtrueauo

CostOfSaleMember

919auo:OperatingExpensesMember (label)nonnum:domainItemTypedurationtrueauo

OperatingExpensesMember

920auo:DisclosureOfExpensesByNatureExplanatoryLineItems (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfExpensesByNatureExplanatoryLineItems

The disclosure of expenses by nature explanatory

921auo:DisclosureOfDetailedInformationOfEmployeesBenefitsExpensesLineItems (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfDetailedInformationOfEmployeesBenefitsExpensesLineItems

The detailed information of employees benefits expenses.

922auo:PostemploymentBenefitExpenseDefinedBenefitPlansAndDefinedContributionPlans (label)xbrli:monetaryItemTypedurationdebitfalseauo

PostemploymentBenefitExpenseDefinedBenefitPlansAndDefinedContributionPlans

The amount of post-employment benefit expense relating to defined benefit plans and defined contribution plans.

923auo:DisclosureOfOtherIncomeExplanatoryAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfOtherIncomeExplanatoryAbstract

The disclosure of other operating income explanatory

924auo:ScheduleOfOtherIncomeTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfOtherIncomeTextBlock

The schedule of other income explanatory.

925auo:DisclosureOfOtherGainsAndLossesAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfOtherGainsAndLossesAbstract

The disclosure of other gains and losses

926auo:ScheduleOfOtherGainsAndLossesTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfOtherGainsAndLossesTextBlock

The schedule of other gains and losses

927auo:DisclosureOfFinanceCostExplanatoryAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfFinanceCostExplanatoryAbstract

The disclosure of finance cost explanatory

928auo:DisclosureOfIncomeTaxExplanatoryAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfIncomeTaxExplanatoryAbstract

The disclosure of income tax explanatory

929auo:DisclosureOfOtherGainsAndLossesTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

DisclosureOfOtherGainsAndLossesTextBlock

Disclosure of other gains and losses.

930auo:ScheduleOfComponentsOfIncomeTaxExpenseTableTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfComponentsOfIncomeTaxExpenseTableTextBlock

The disclosure of detailed information about components of income tax expense(benefit).

931auo:ScheduleOfInformationAboutIncomeTaxesExpenseBenefitRecognizedDirectlyInOtherComprehensiveIncomeTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfInformationAboutIncomeTaxesExpenseBenefitRecognizedDirectlyInOtherComprehensiveIncomeTextBlock

The Schedule of information about income taxes expense (benefit) recognized directly in other comprehensive income.

932auo:ScheduleOfIncomeTaxReconciliationTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfIncomeTaxReconciliationTextBlock

The detailed information about schedule of income tax reconciliation.

933auo:ScheduleOfChangesInDeferredTaxAssetsAndLiabilitiesTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfChangesInDeferredTaxAssetsAndLiabilitiesTextBlock

The detailed information about schedule of changes in deferred tax assets and liabilities.

934auo:TaxRateEffectOfDifferentSubsidiariesIncomeTaxRate (label)num:percentItemTypedurationfalseauo

TaxRateEffectOfDifferentSubsidiariesIncomeTaxRate

The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from different subsidiaries income tax rate.

935auo:TaxRateEffectOfShareOfProfitEquityAccountedSubsidiaries (label)num:percentItemTypedurationfalseauo

TaxRateEffectOfShareOfProfitEquityAccountedSubsidiaries

The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from share of profit equity accounted subsidiaries.

936auo:TaxRateEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss (label)num:percentItemTypedurationfalseauo

TaxRateEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss

The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from change of unrecognized deductible temporary differences, tax loss.

937auo:TaxRateEffectOfLossGainFromDomesticLongTermInvestment (label)num:percentItemTypedurationfalseauo

TaxRateEffectOfLossGainFromDomesticLongTermInvestment

The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from loss(gain) from domestic long term investment.

938auo:TaxRateEffectOfUndistrbutedEarningsNet (label)num:percentItemTypedurationfalseauo

TaxRateEffectOfUndistrbutedEarningsNet

The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from undistributed earnings, net.

939auo:TaxEffectOfDifferentSubsidiariesIncomeTaxRate (label)xbrli:monetaryItemTypedurationdebitfalseauo

TaxEffectOfDifferentSubsidiariesIncomeTaxRate

The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to different subsidiaries income tax rate.

940auo:TaxEffectOfShareOfProfitOfEquityAccountedSubsidiaries (label)xbrli:monetaryItemTypedurationcreditfalseauo

TaxEffectOfShareOfProfitOfEquityAccountedSubsidiaries

The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to share of profit of equity accounted subsidiaries.

941auo:TaxEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss (label)xbrli:monetaryItemTypedurationdebitfalseauo

TaxEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss

The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to change of unrecognized deductible temporary differences ,tax loss.

942auo:TaxEffectOfLossGainFromDomesticLongTermInvestment (label)xbrli:monetaryItemTypedurationdebitfalseauo

TaxEffectOfLossGainFromDomesticLongTermInvestment

The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to loss(gain)from domestic long term investment.

943auo:TaxEffectOfUndistributedEarningsNet (label)xbrli:monetaryItemTypedurationdebitfalseauo

TaxEffectOfUndistributedEarningsNet

The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to undistributed earnings, net.

944auo:TaxEffectOfAdjustmentsToPriorYear (label)xbrli:monetaryItemTypedurationdebitfalseauo

TaxEffectOfAdjustmentsToPriorYear

The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to adjustments to prior year.

945Disclosure of income tax explanatory [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfIncomeTaxExplanatoryTable

946Deferred tax assets [Member]nonnum:domainItemTypedurationtrueauo

DeferredTaxAssetsMember

947Deferred tax liabilities [Member]nonnum:domainItemTypedurationtrueauo

DeferredTaxLiabilitiesMember

948auo:DisclosureOfIncomeTaxExplanatoryLineItems (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfIncomeTaxExplanatoryLineItems

The disclosure of income tax explanatory.

949auo:DeferredTaxLiabilityAssetRelatedToInvestmentsCredits (label)xbrli:monetaryItemTypeinstantcreditfalseauo

DeferredTaxLiabilityAssetRelatedToInvestmentsCredits

The amount of deferred tax liabilities or assets related to investment tax credits.

950auo:DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards (label)xbrli:monetaryItemTypeinstantcreditfalseauo

DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards

The amount of deferred tax liabilities or assets related to tax loss carry forwards.

951auo:DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses (label)xbrli:monetaryItemTypeinstantcreditfalseauo

DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses

The amount of deferred tax liabilities or assets related to unrealized loss and expenses.

952auo:DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown (label)xbrli:monetaryItemTypeinstantcreditfalseauo

DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown

The amount of deferred tax liabilities or assets related to inventories write down.

953auo:DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod (label)xbrli:monetaryItemTypeinstantcreditfalseauo

DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod

The amount of deferred tax liabilities or assets related to foreign investment gains under equity method.

954auo:DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans (label)xbrli:monetaryItemTypeinstantcreditfalseauo

DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans

The amount of deferred tax liabilities or assets related to remeasurement defined benefit plans.

955auo:DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences (label)xbrli:monetaryItemTypeinstantcreditfalseauo

DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences

The amount of deferred tax liabilities or assets related to foreign operations - foreign currency translation differences.

956auo:DeferredTaxLiabilityAssetRelatedToOthers (label)xbrli:monetaryItemTypeinstantcreditfalseauo

DeferredTaxLiabilityAssetRelatedToOthers

The amount of deferred tax liabilities or assets related to others.

957Investment tax credits [Member]nonnum:domainItemTypedurationtrueauo

InvestmentTaxCreditsMember

958Tax losses carryforwards [Member]nonnum:domainItemTypedurationtrueauo

TaxLossesCarryforwardsMember

959Unrealized loss and expenses [Member]nonnum:domainItemTypedurationtrueauo

UnrealizedLossAndExpensesMember

960Inventories write-down [Member]nonnum:domainItemTypedurationtrueauo

InventoriesWritedownMember

961auo:ForeignInvestmentLossesGainsUnderEquityMethodMember (label)nonnum:domainItemTypedurationtrueauo

ForeignInvestmentLossesGainsUnderEquityMethodMember

962Remeasurement of defined benefit plans [Member]nonnum:domainItemTypedurationtrueauo

RemeasurementOfDefinedBenefitPlansMember

963auo:ForeignOperationsForeignCurrencyTranslationDifferencesMember (label)nonnum:domainItemTypedurationtrueauo

ForeignOperationsForeignCurrencyTranslationDifferencesMember

964Unrealized gains on available for sale financial assets [Member]nonnum:domainItemTypedurationtrueauo

UnrealizedGainsOnAvailableForSaleFinancialAssetsMember

965auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)xbrli:monetaryItemTypedurationdebitfalseauo

DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers

The amount of tax expense or income relating to deferred tax due to effect of exchange rate and others during the period.

966auo:GoodwillForWhichNoDeferredTaxAssetRecognised (label)xbrli:monetaryItemTypeinstantdebitfalseauo

GoodwillForWhichNoDeferredTaxAssetRecognised

Unused investment tax credits

967Unused tax losses assessment year [Axis]xbrli:stringItemTypedurationtrueauo

UnusedTaxLossesAssessmentYearAxis

968Unused tax losses assessment year [Domain]nonnum:domainItemTypedurationtrueauo

UnusedTaxLossesAssessmentYearDomain

969auo:EstimatedAndActualCreditableRatiosForDistributionOfEarnings (label)num:percentItemTypedurationfalseauo

EstimatedAndActualCreditableRatiosForDistributionOfEarnings

The percentage of the estimated and actual creditable ratios for distribution of earnings for ROC resident shareholders.

970auo:DifferenceInDepreciationExpenseForTaxAndFinancialPurposesForWhichNoDeferredTaxAssetRecognised (label)xbrli:monetaryItemTypeinstantdebitfalseauo

DifferenceInDepreciationExpenseForTaxAndFinancialPurposesForWhichNoDeferredTaxAssetRecognised

Difference in depreciation expense for tax and financial purposes.

971auo:InventoriesWriteDownForWhichNoDeferredTaxAssetRecognised (label)xbrli:monetaryItemTypeinstantdebitfalseauo

InventoriesWriteDownForWhichNoDeferredTaxAssetRecognised

The amount of inventories write down for which no deferred tax asset is recognised in the statement of financial position.

972auo:TotalUnrecognizedDeferredTaxAssets (label)xbrli:monetaryItemTypeinstantdebitfalseauo

TotalUnrecognizedDeferredTaxAssets

The amount of total deferred tax assets which have not recognised in the statement of financial position.

973auo:DisclosureOfEarningsPerShareAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfEarningsPerShareAbstract

974auo:ScheduleOfDilutedEarningsPerShareTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfDilutedEarningsPerShareTextBlock

The disclosure of detailed information about diluted earnings (loss) per share.

975auo:DilutiveEffectOfConvertibleBonds (label)xbrli:monetaryItemTypedurationcreditfalseauo

DilutiveEffectOfConvertibleBonds

The amount of effect of convertible bonds which will be included in the computation of diluted earning per share.

976auo:DisclosureOfFinancialInstrumentAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfFinancialInstrumentAbstract

977auo:ScheduleOfCarryingAmountAndFairValueOfFinancialInstrumentsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfCarryingAmountAndFairValueOfFinancialInstrumentsTextBlock

The disclosure of schedule of carrying amount and fair value of financial instruments.

978auo:ScheduleOfFairValueMeasurementOfAssetsAndLiabilitiesOnRecurringBasisTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfFairValueMeasurementOfAssetsAndLiabilitiesOnRecurringBasisTextBlock

The disclosure of schedule of fair value measurement of assets and liabilities on a recurring basis.

979Disclosure of financial instrument [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfFinancialInstrumentTable

980auo:DisclosureOfFinancialInstrumentLineItems (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfFinancialInstrumentLineItems

The disclosure of financial instrument.

981auo:EffectOfChangeInExchangeRateFairValueMeasurementAssets (label)xbrli:monetaryItemTypedurationdebitfalseauo

EffectOfChangeInExchangeRateFairValueMeasurementAssets

The increase (decrease) in the fair value measurement of assets resulting from net exchange differences.

982auo:DisclosureOfFinancialRiskManagementExplanatoryAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfFinancialRiskManagementExplanatoryAbstract

983auo:ScheduleOfMaturityAnalysisForFinancialLiabilitiesTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfMaturityAnalysisForFinancialLiabilitiesTextBlock

The disclosure of schedule of maturity analysis for financial liabilities.

984Disclosure Of Financial Risk Management Explanatory [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfFinancialRiskManagementExplanatoryTable

985auo:DepreciationOrAppreciationRateOfReportingCurrency (label)num:percentItemTypedurationfalseauo

DepreciationOrAppreciationRateOfReportingCurrency

The depreciation or appreciation rate of reporting currency for sensitivity analysis of foreign currency risk.

986auo:DecreaseOrIncreaseInNetProfitLossBeforeTax (label)xbrli:monetaryItemTypedurationdebitfalseauo

DecreaseOrIncreaseInNetProfitLossBeforeTax

The decrease or increase in net profit (loss) from continuing operations before tax expense or income due to the interest rate on borrowings increased or decreased by 0.25%.

987auo:LongTermBorrowingMember (label)nonnum:domainItemTypedurationtrueauo

LongTermBorrowingMember

988auo:ForeignCurrencyForwardContractsInflowsMember (label)nonnum:domainItemTypedurationtrueauo

ForeignCurrencyForwardContractsInflowsMember

989auo:ForeignCurrencyForwardContractsOutflowsMember (label)nonnum:domainItemTypedurationtrueauo

ForeignCurrencyForwardContractsOutflowsMember

990auo:InterestRateSwapContractsMember (label)nonnum:domainItemTypedurationtrueauo

InterestRateSwapContractsMember

991auo:FinancialLiabilitiesUndiscountedCashFlows (label)xbrli:monetaryItemTypeinstantcreditfalseauo

FinancialLiabilitiesUndiscountedCashFlows

The gross amount of contractual undiscounted cash flows in relation to financial liabilities.

992auo:HedgingMonetaryItemsMember (label)nonnum:domainItemTypedurationtrueauo

HedgingMonetaryItemsMember

993auo:HedgingNonmonetaryItemsMember (label)nonnum:domainItemTypedurationtrueauo

HedgingNonmonetaryItemsMember

994Currencies [Axis]xbrli:stringItemTypedurationtrueauo

CurrenciesAxis

995auo:FinancialAssetsAndFinancialLiabilitiesAbstract (label)xbrli:stringItemTypedurationtrueauo

FinancialAssetsAndFinancialLiabilitiesAbstract

996auo:FinancialAssetsAmountDenominatedInForeignCurrency (label)xbrli:monetaryItemTypeinstantdebitfalseauo

FinancialAssetsAmountDenominatedInForeignCurrency

The amount denominated in foreign currency of a financial asset.

997auo:IncreaseInNetProfitLossBeforeTaxDueToDepreciationReportingCurrencyRate (label)xbrli:monetaryItemTypedurationcreditfalseauo

IncreaseInNetProfitLossBeforeTaxDueToDepreciationReportingCurrencyRate

The increase (decrease) in net profit from continuing operations before tax expense (benefit) due to depreciation of reporting currency rate.

998auo:ScheduleOfInformationAboutCapitalManagementTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfInformationAboutCapitalManagementTextBlock

The disclosure of schedule of information about capital management.

999auo:InterestBearingDebtInstrumentsHeld (label)xbrli:monetaryItemTypeinstantcreditfalseauo

InterestBearingDebtInstrumentsHeld

The amount of interest bearing instruments representing indebtedness held by the entity.

1000auo:DebtToEquityRatio (label)num:percentItemTypedurationfalseauo

DebtToEquityRatio

Total liabilities divided by total equity.

1001auo:DescriptionOfConversionOfInterestBearingDebtToEquity (label)num:percentItemTypedurationfalseauo

DescriptionOfConversionOfInterestBearingDebtToEquity

Interest-bearing debts divided by total equity.

1002auo:DisclosureOfRelatedPartyTransactionsAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfRelatedPartyTransactionsAbstract

1003auo:FinancialAssetsCarryingAmount (label)xbrli:monetaryItemTypeinstantdebitfalseauo

FinancialAssetsCarryingAmount

The amount denominated in Taiwan Dollars of a financial asset.

1004Currencies [Domain]nonnum:domainItemTypedurationtrueauo

CurrenciesDomain

1005USD currency [Member]nonnum:domainItemTypedurationtrueauo

UsdCurrencyMember

1006JPY currency [Member]nonnum:domainItemTypedurationtrueauo

JpyCurrencyMember

1007EUR currency [Member]nonnum:domainItemTypedurationtrueauo

EurCurrencyMember

1008RMB currency [Member]nonnum:domainItemTypedurationtrueauo

RmbCurrencyMember

1009auo:IncreaseInNetProfitLossBeforeTaxDueToAppreciationReportingCurrencyRate (label)xbrli:monetaryItemTypedurationcreditfalseauo

IncreaseInNetProfitLossBeforeTaxDueToAppreciationReportingCurrencyRate

The increase (decrease) in net profit from continuing operations before tax expense (benefit) due to appreciation of reporting currency rate.

1010auo:ScheduleOfPurchasesTransactionsBetweenRelatedPartiesTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfPurchasesTransactionsBetweenRelatedPartiesTextBlock

The disclosure of schedule of purchases transactions between related parties.

1011auo:ScheduleOfAcquisitionPropertyPlantAndEquipmentInRelatedPartyTransactionsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfAcquisitionPropertyPlantAndEquipmentInRelatedPartyTransactionsTextBlock

The disclosure of schedule of acquisition property, plant and equipment in related party transactions.

1012auo:ScheduleOfDisposalOfPropertyPlantAndEquipmentInRelatedPartyTransactionsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfDisposalOfPropertyPlantAndEquipmentInRelatedPartyTransactionsTextBlock

The disclosure of schedule of disposal of property, plant and equipment in related party transactions.

1013auo:ScheduleOfOtherRelatedPartyTransactionsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfOtherRelatedPartyTransactionsTextBlock

The disclosure of schedule of other related party transactions.

1014auo:DisclosureOfPledgedAssetsAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfPledgedAssetsAbstract

1015Disclosure of Pledged Assets [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfPledgedAssetsTable

1016auo:RestrictedCashInBanksMember (label)nonnum:domainItemTypedurationtrueauo

RestrictedCashInBanksMember

1017Disclosure of Pledged Assets [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfPledgedAssetsLineItems

1018auo:DisclosureOfContingentLiabilitiesAndCommitmentsAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfContingentLiabilitiesAndCommitmentsAbstract

1019Disclosure of Contingent Liabilities and Commitments [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfContingentLiabilitiesAndCommitmentsTable

1020auo:PaymentsForSettlement (label)xbrli:monetaryItemTypedurationcreditfalseauo

PaymentsForSettlement

The cash outflow for payment of litigation settlement.

1021Disclosure of Contingent Liabilities and Commitments [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfContingentLiabilitiesAndCommitmentsLineItems

1022auo:ScheduleOfAssetsPledgedAsCollateralTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfAssetsPledgedAsCollateralTextBlock

The disclosure of schedule of assets pledged as collateral.

1023auo:LettersOfCredit (label)xbrli:monetaryItemTypeinstantcreditfalseauo

LettersOfCredit

A written commitment by a bank guaranteeing that a buyer's payment to a seller will be received on time and for the correct amount.

1024auo:DisclosureOfSegmentGeographicAndRevenueInformationAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfSegmentGeographicAndRevenueInformationAbstract

1025Disclosure Of Segment, Geographic and Revenue Information [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfSegmentGeographicAndRevenueInformationTable

1026auo:TaiwanMember (label)nonnum:domainItemTypedurationtrueauo

TaiwanMember

1027Disclosure of Segment, Geographic and Revenue Information [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfSegmentGeographicAndRevenueInformationLineItems

1028auo:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssets (label)xbrli:monetaryItemTypeinstantdebitfalseauo

NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssets

The amount of non-current assets other than financial instruments, deferred tax assets, post-employment benefit assets.

1029auo:TelevisionsMember (label)nonnum:domainItemTypedurationtrueauo

TelevisionsMember

1030auo:MobilePcsMember (label)nonnum:domainItemTypedurationtrueauo

MobilePcsMember

1031auo:MobileDeviceMember (label)nonnum:domainItemTypedurationtrueauo

MobileDeviceMember

1032auo:MonitorMember (label)nonnum:domainItemTypedurationtrueauo

MonitorMember

1033auo:CommercialAndOtherProductsMember (label)nonnum:domainItemTypedurationtrueauo

CommercialAndOtherProductsMember

1034auo:SolarProductsMember (label)nonnum:domainItemTypedurationtrueauo

SolarProductsMember

1035auo:DisclosureOfSubsequentEventAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfSubsequentEventAbstract

1036auo:StatementBusinessSegmentAxis (label)xbrli:stringItemTypedurationtrueauo

StatementBusinessSegmentAxis

1037auo:RentalIncomeRelatedParty (label)xbrli:monetaryItemTypedurationcreditfalseauo

RentalIncomeRelatedParty

The amount of rental income in related party transactions.

1038auo:RentalAndOtherExpensesRelatedPartyTransactions (label)xbrli:monetaryItemTypedurationdebitfalseauo

RentalAndOtherExpensesRelatedPartyTransactions

The amount of rental and other expenses in related party transactions.

1039Disclosure of balance of capital surplus [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfBalanceOfCapitalSurplusLineItems

1040Miscellaneous Component Of Equity [Domain]nonnum:domainItemTypedurationtrueauo

MiscellaneousComponentOfEquityDomain

1041auo:ScheduleOfForeignCurrencyForwardContractsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfForeignCurrencyForwardContractsTextBlock

Schedule of outstanding foreign currency forward contracts.

1042auo:ScheduleOfRevenuesTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfRevenuesTextBlock

The Schedule of revenues.

1043auo:ScheduleOfChangesInLevel3FairValueMeasurementTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfChangesInLevel3FairValueMeasurementTextBlock

The disclosure of schedule of changes in Level 3 fair value measurement.

1044auo:DisclosureOfDetailedInformationAboutExposureToForeignCurrencyRiskTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

DisclosureOfDetailedInformationAboutExposureToForeignCurrencyRiskTextBlock

The disclosure of detailed information about exposure to foreign currency risk.

1045Disclosure of other components of equity [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfOtherComponentsOfEquityLineItems

1046auo:EffectOfAcquisitionOfNoncontrollingInterests (label)xbrli:monetaryItemTypedurationcreditfalseauo

EffectOfAcquisitionOfNoncontrollingInterests

The increase (decrease) in equity resulting from the acquisition of non-controlling interest.

1047auo:DescriptionOfConversionOfNetDebtToEquity (label)num:percentItemTypedurationfalseauo

DescriptionOfConversionOfNetDebtToEquity

Net debt-to-equity ratio is defined as interest-bearing debts less cash and cash equivalents divided by total equity.

1048auo:SalesFairValueMeasurementAssetsOfValuationApproachAmount (label)xbrli:monetaryItemTypedurationcreditfalseauo

SalesFairValueMeasurementAssetsOfValuationApproachAmount

Sales price per square meter of comparable properties used for the fair value measurement of assets.

1049Statement Business Segment [Domain]nonnum:domainItemTypedurationtrueauo

StatementBusinessSegmentDomain

1050Revenue Customer [Axis]xbrli:stringItemTypedurationtrueauo

RevenueCustomerAxis

1051auo:ScheduleOfTradeReceivablesTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfTradeReceivablesTextBlock

Schedule of trade receivables form related parties.

1052auo:ScheduleOfOtherComponentsOfEquityTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfOtherComponentsOfEquityTextBlock

Disclosure of detailed information relating to other component of equity.

1053auo:ScheduleOfUnrecognizedDeferredTaxAssetsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfUnrecognizedDeferredTaxAssetsTextBlock

The schedule of unrecognized deferred tax assets.

1054auo:ScheduleOfSensitivityAnalysisOfCurrencyRiskTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfSensitivityAnalysisOfCurrencyRiskTextBlock

The disclosure of schedule of sensitivity analysis of currency risk.

1055auo:SalesDiscountFairValueMeasurementAssetsOfValuationApproach (label)num:percentItemTypedurationfalseauo

SalesDiscountFairValueMeasurementAssetsOfValuationApproach

Sales discount used for the fair value measurement of assets.

1056Unsecured Borrowings [Member]nonnum:domainItemTypedurationtrueauo

UnsecuredBorrowingsMember

1057Unused Credit Facility [Member]nonnum:domainItemTypedurationtrueauo

UnusedCreditFacilityMember

1058auo:CollectionTermsForSalesMember (label)nonnum:domainItemTypedurationtrueauo

CollectionTermsForSalesMember

1059auo:PaymentTermsForPurchasesMember (label)nonnum:domainItemTypedurationtrueauo

PaymentTermsForPurchasesMember

1060auo:ScheduleOfOutstandingLettersOfCreditTableTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfOutstandingLettersOfCreditTableTextBlock

The disclosure of schedule of outstanding letters of credit.

1061auo:ScheduleOfNoncontrollingInterestsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfNoncontrollingInterestsTextBlock

The schedule of Non-controlling interests.

1062auo:ScheduleOfGainOrLossOfForeignCurrencyForwardContractsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfGainOrLossOfForeignCurrencyForwardContractsTextBlock

Schedule of gain or loss of foreign currency forward contracts.

1063auo:ScheduleOfAvailableforsaleFinancialAssetsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfAvailableforsaleFinancialAssetsTextBlock

Schedule of available for sale financial assets.

1064auo:ScheduleOfAllowanceForDoubtfulAccountsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfAllowanceForDoubtfulAccountsTextBlock

Schedule of allowance for the doubtful accounts.

1065auo:ScheduleOfTradeReceivablesFactoringTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfTradeReceivablesFactoringTextBlock

Schedule of trade receivables factor.

1066auo:ScheduleOfNumberAndWeightedAverageExercisePricesOfDtpwOptionPlanTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfNumberAndWeightedAverageExercisePricesOfDtpwOptionPlanTextBlock

The schedule of number and weighted average exercise prices of DTPW option plan.

1067auo:ScheduleOfInformationAboutUnusedTaxLossesCarryforwardsTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfInformationAboutUnusedTaxLossesCarryforwardsTextBlock

The detailed information about schedule of unused tax losses carryforwards.

1068auo:DisclosureOfFinancialsRiskManagementExplanatoryLineItems (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfFinancialsRiskManagementExplanatoryLineItems

The disclosure of financials risk management explanatory.

1069auo:ScheduleOfTermsAndConditionsOfActwOptionPlanTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfTermsAndConditionsOfActwOptionPlanTextBlock

The Schedule of terms and conditions of ACTW option Plan.

1070auo:ScheduleOfValuationInformationOfActwOptionPlanTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfValuationInformationOfActwOptionPlanTextBlock

The schedule of valuation information of ACTW option plan.

1071auo:ScheduleOfNumberAndWeightedAverageExercisePricesOfActwOptionPlanTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleOfNumberAndWeightedAverageExercisePricesOfActwOptionPlanTextBlock

The schedule of number and weighted average exercise prices of ACTW option plan.

1072auo:OtherComponentsOfEquitiesMember (label)nonnum:domainItemTypedurationtrueauo

OtherComponentsOfEquitiesMember

1073auo:CommonStock1Member (label)nonnum:domainItemTypedurationtrueauo

CommonStock1Member

1074Disclosure of Subsequent event [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfSubsequentEventTable

1075auo:SubsequentEventsMember (label)nonnum:domainItemTypedurationtrueauo

SubsequentEventsMember

1076auo:MaturityDateJanFeb2018Member (label)nonnum:domainItemTypedurationtrueauo

MaturityDateJanFeb2018Member

1077Maturity Date Jan- Mar 2018 [Member]nonnum:domainItemTypedurationtrueauo

MaturityDateJanMar2018Member

1078Maturity Date Jan- Jun 2018 [Member]nonnum:domainItemTypedurationtrueauo

MaturityDateJanJun2018Member

1079Maturity Date Jan- Apr 2018 [Member]nonnum:domainItemTypedurationtrueauo

MaturityDateJanApr2018Member

1080Maturity Date Jan 2018 [Member]nonnum:domainItemTypedurationtrueauo

MaturityDateJan2018Member

1081auo:ScheduleofinventoryTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

ScheduleofinventoryTextBlock

Schedule of inventory.

1082auo:DisclosureOfNoncurrentAssetsHeldForSaleAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfNoncurrentAssetsHeldForSaleAbstract

Disclosure of noncurrent assets held for sale

1083auo:DisclosureOfNoncurrentAssetsHeldForSaleTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

DisclosureOfNoncurrentAssetsHeldForSaleTextBlock

Disclosure Of noncurrent assets held for sale

1084auo:DisclosureOfSignificantUnobservableInputsInValuationTechniquesUsedTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

DisclosureOfSignificantUnobservableInputsInValuationTechniquesUsedTextBlock

The disclosure of significant unobservable inputs in valuation techniques used.

1085auo:CapitalizationRateSignificantUnabservableInputsAssets (label)num:percentItemTypedurationfalseauo

CapitalizationRateSignificantUnabservableInputsAssets

capitalization rate used as a significant Level 3 unobservable input for assets.

1086auo:DerivativeFinancialLiabilitiesForHedgingMember (label)nonnum:domainItemTypedurationtrueauo

DerivativeFinancialLiabilitiesForHedgingMember

1087auo:ForeignCurrencyForwardContractsAssetsMember (label)nonnum:domainItemTypedurationtrueauo

ForeignCurrencyForwardContractsAssetsMember

1088auo:InterestRateSwapContractsLiabilityMember (label)nonnum:domainItemTypedurationtrueauo

InterestRateSwapContractsLiabilityMember

1089auo:ForeignCurrencyForwardsContractsLiabilitiesMember (label)nonnum:domainItemTypedurationtrueauo

ForeignCurrencyForwardsContractsLiabilitiesMember

1090Derivatives financial liabilities for hedging [Member]nonnum:domainItemTypedurationtrueauo

DerivativesFinancialLiabilitiesForHedgingMember

1091auo:GuaranteeDepositsLiabilityMember (label)nonnum:domainItemTypedurationtrueauo

GuaranteeDepositsLiabilityMember

1092auo:DisclosureOfDetailedInformationAboutNoncurrentAssetsHeldForSaleTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

DisclosureOfDetailedInformationAboutNoncurrentAssetsHeldForSaleTextBlock

The disclosure of detailed information about noncurrent assets held for sale.

1093Disclosure Of Noncurrent Assets Held For Sale [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfNoncurrentAssetsHeldForSaleTable

1094auo:PropertyPlantAndEquipmentHeldForSaleMember (label)nonnum:domainItemTypedurationtrueauo

PropertyPlantAndEquipmentHeldForSaleMember

1095auo:UfreshTechnologyIncUtiMember (label)nonnum:domainItemTypedurationtrueauo

UfreshTechnologyIncUtiMember

1096Disclosure Of Noncurrent Assets Held For Sale [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfNoncurrentAssetsHeldForSaleLineItems

1097auo:NoncurrentAssetsHeldForSaleDisposalConsideration (label)xbrli:monetaryItemTypedurationdebitfalseauo

NoncurrentAssetsHeldForSaleDisposalConsideration

The amount of consideration on sale of noncurrent assets held for sale.

1098auo:ChampiongenPowerCorporationCgpcMember (label)nonnum:domainItemTypedurationtrueauo

ChampiongenPowerCorporationCgpcMember

1099Star River Energy Corporation [Member]nonnum:domainItemTypedurationtrueauo

StarRiverEnergyCorporationMember

1100auo:SsecMember (label)nonnum:domainItemTypedurationtrueauo

SsecMember

1101AUXM [Member]nonnum:domainItemTypedurationtrueauo

AuxmMember

1102auo:BriviewLCorpBvlbMember (label)nonnum:domainItemTypedurationtrueauo

BriviewLCorpBvlbMember

1103auo:DarwinPrecisionsHongKongLimitedDphkMember (label)nonnum:domainItemTypedurationtrueauo

DarwinPrecisionsHongKongLimitedDphkMember

1104auo:DisclosureOfDisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfDisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlAbstract

1105auo:DisclosureOfEffectsOfChangesInParentsOwnershipInterestInSubsidiaryThatDoNotResultInLossOfControlOnEquityAttributableToOwnersOfParentExplanatoryTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

DisclosureOfEffectsOfChangesInParentsOwnershipInterestInSubsidiaryThatDoNotResultInLossOfControlOnEquityAttributableToOwnersOfParentExplanatoryTextBlock

Disclosure of effects of changes in parents ownership interest in subsidiary that do not result in loss of control on equity attributable to owners of parent explanatory.

1106auo:Disposalofpartofownershipinterestinsubsidiarywithoutlosingcontrolconsiderationreceived (label)xbrli:monetaryItemTypedurationdebitfalseauo

Disposalofpartofownershipinterestinsubsidiarywithoutlosingcontrolconsiderationreceived

The amount of consideration received on disposal of part of ownership interest.

1107auo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlConsiderationReceivedFromNoncontrollingInterests (label)xbrli:monetaryItemTypedurationdebitfalseauo

DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlConsiderationReceivedFromNoncontrollingInterests

The carrying amount of the equity interest disposed of

1108auo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlCapitalSurplusFromChangeInOwnershipOfSubsidiary (label)xbrli:monetaryItemTypedurationdebitfalseauo

DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlCapitalSurplusFromChangeInOwnershipOfSubsidiary

The amount of capital surplus arises from change in ownership of subsidiary.

1109auo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlotherEquityEffectFromForeignCurrencyTranslationDifferences (label)xbrli:monetaryItemTypedurationdebitfalseauo

DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlotherEquityEffectFromForeignCurrencyTranslationDifferences

The amount of other equity effect from foreign currency translation differences.

1110auo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControldifferencesBetweenConsiderationAndCarryingAmountofSubsidiariesdisposedOf (label)xbrli:monetaryItemTypedurationdebitfalseauo

DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControldifferencesBetweenConsiderationAndCarryingAmountofSubsidiariesdisposedOf

The net difference between consideration and carrying amount of subsidiary disposed of.

1111auo:ProportionOfSubsidiaryOwnershipPercentageSold (label)num:percentItemTypedurationfalseauo

ProportionOfSubsidiaryOwnershipPercentageSold

Proportion Of Subsidiary Ownership Percentage Sold

1112auo:DisclosureOfDisposalOfSubsidiariesAbstract (label)xbrli:stringItemTypedurationtrueauo

DisclosureOfDisposalOfSubsidiariesAbstract

1113auo:DisclosureOfLossControlOfSubsidiaryTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

DisclosureOfLossControlOfSubsidiaryTextBlock

The disclosure of loss of control of subsidiary.

1114auo:AccountsReceivableAndOtherReceivablesInSubsidiaryOrBusinessesAcquiredOrDisposed (label)xbrli:monetaryItemTypedurationdebitfalseauo

AccountsReceivableAndOtherReceivablesInSubsidiaryOrBusinessesAcquiredOrDisposed

The amount of accounts receivable and other receivables in subsidiaries or other businesses over which control is obtained or lost.

1115auo:OtherCurrentAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed (label)xbrli:monetaryItemTypedurationdebitfalseauo

OtherCurrentAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed

The amount of other current assets in subsidiaries or other businesses over which control is obtained or lost.

1116auo:PropertyPlantAndEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed (label)xbrli:monetaryItemTypedurationdebitfalseauo

PropertyPlantAndEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed

The amount of a property, plant and equipment in subsidiaries or other businesses over which control is obtained or lost.

1117auo:OtherAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed (label)xbrli:monetaryItemTypedurationdebitfalseauo

OtherAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed

The amount of other assets in subsidiaries or other businesses over which control is obtained or lost.

1118auo:PayableForEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed (label)xbrli:monetaryItemTypedurationcreditfalseauo

PayableForEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed

The amount of payable for equipment in subsidiaries or other businesses over which control is obtained or lost.

1119auo:AccruedExpenseAndOtherCurrentLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposed (label)xbrli:monetaryItemTypedurationcreditfalseauo

AccruedExpenseAndOtherCurrentLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposed

The amount of accrued expense and other current liabilities in subsidiaries or other businesses over which control is obtained or lost.

1120auo:LongtermBorrowingsInSubsidiaryOrBusinessesAcquiredOrDisposed (label)xbrli:monetaryItemTypedurationcreditfalseauo

LongtermBorrowingsInSubsidiaryOrBusinessesAcquiredOrDisposed

The amount of long-term borrowings in subsidiaries or other businesses over which control is obtained or lost.

1121auo:NetAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed (label)xbrli:monetaryItemTypedurationdebitfalseauo

NetAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed

The amount of net assets in subsidiaries or other businesses over which control is obtained or lost.

1122auo:DescriptionOfDistributionOfEarningsAndDividendPolicy (label)xbrli:stringItemTypedurationfalseauo

DescriptionOfDistributionOfEarningsAndDividendPolicy

The description of the principle and method of distribution of earnings.

1123Disclosure of reconciliation of liabilities to cash flows arising from financing activities [Table]xbrli:stringItemTypedurationtrueauo

DisclosureOfReconciliationOfLiabilitiesToCashFlowsArisingFromFinancingActivitiesTable

1124auo:LiabilitiesArisingFromFinancingActivitieAxis (label)xbrli:stringItemTypedurationtrueauo

LiabilitiesArisingFromFinancingActivitieAxis

1125auo:LiabilitiesArisingFromFinancingActivitieDomain (label)nonnum:domainItemTypedurationtrueauo

LiabilitiesArisingFromFinancingActivitieDomain

1126auo:ShorttermBorrowingMember (label)nonnum:domainItemTypedurationtrueauo

ShorttermBorrowingMember

1127auo:LongtermBorrowing1Member (label)nonnum:domainItemTypedurationtrueauo

LongtermBorrowing1Member

1128auo:GuaranteeDepositsMember (label)nonnum:domainItemTypedurationtrueauo

GuaranteeDepositsMember

1129Disclosure of reconciliation of liabilities to cash flows arising from financing activities [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfReconciliationOfLiabilitiesToCashFlowsArisingFromFinancingActivitiesLineItems

1130auo:DisclosureOfDetailedInformationAboutReconciliationOfLiabilitiesToCashFlowArisingFromFinancingActivitiesExplanatoryTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

DisclosureOfDetailedInformationAboutReconciliationOfLiabilitiesToCashFlowArisingFromFinancingActivitiesExplanatoryTextBlock

The disclosure of detailed information about reconciliation of liabilities to cash flow arising from financing activities explanatory.

1131auo:DisclosureOfDetailedInformationAboutCarryingValueOfAssetsAndLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposedTextBlock (label)nonnum:textBlockItemTypedurationfalseauo

DisclosureOfDetailedInformationAboutCarryingValueOfAssetsAndLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposedTextBlock

The disclosure of detailed information about carrying value of assets and liabilities in subsidiary or businesses acquired or disposed.

1132auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (label)xbrli:monetaryItemTypedurationcreditfalseauo

GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers

The gain on the disposal of property, plant and equipment. [Refer: Property, plant and equipment]

1133auo:ProceedsFromSubsidiaryCapitalReturn (label)xbrli:monetaryItemTypedurationdebitfalseauo

ProceedsFromSubsidiaryCapitalReturn

The cash inflow as return of capital from subsidiaries upon liquidation.

1134auo:IncreaseThroughChangeInTaxRateDeferredTaxAssets (label)xbrli:monetaryItemTypeinstantdebitfalseauo

IncreaseThroughChangeInTaxRateDeferredTaxAssets

The increase in deferred tax asset from changes in statutory tax rate.

1135auo:IncreaseThroughChangeInTaxRateDeferredTaxLiability (label)xbrli:monetaryItemTypeinstantcreditfalseauo

IncreaseThroughChangeInTaxRateDeferredTaxLiability

The increase in deferred tax liabilities from changes in statutory tax rate.

1136Scenario for tax [Axis]xbrli:stringItemTypedurationtrueauo

ScenarioForTaxAxis

1137Land use right [Member]nonnum:domainItemTypedurationtrueauo

LandUseRightMember

1138auo:AuOptronicsSlovakiaSroMember (label)nonnum:domainItemTypedurationtrueauo

AuOptronicsSlovakiaSroMember

1139auo:AuoCareManagementMember (label)nonnum:domainItemTypedurationtrueauo

AuoCareManagementMember

1140AUSH [Member]nonnum:domainItemTypedurationtrueauo

AushMember

1141Disclosure of Subsequent event [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfSubsequentEventLineItems

1142Scenario for tax [Domain]nonnum:domainItemTypedurationtrueauo

ScenarioForTaxDomain

1143auo:NoncontrollingInterestsOtherAdjustments (label)xbrli:monetaryItemTypedurationcreditfalseauo

NoncontrollingInterestsOtherAdjustments

The amount of increase (decrease) in non-controlling interests due to other changes.

1144AUO [Member]nonnum:domainItemTypedurationtrueauo

AuoMember

1145AUO, Konly and Ronly [Member]nonnum:domainItemTypedurationtrueauo

AuoKonlyAndRonlyMember

1146AULB [Member]nonnum:domainItemTypedurationtrueauo

AulbMember

1147AULB and DPTW [Member]nonnum:domainItemTypedurationtrueauo

AulbAndDptwMember

1148AUSG [Member]nonnum:domainItemTypedurationtrueauo

AusgMember

1149DPTW [Member]nonnum:domainItemTypedurationtrueauo

DptwMember

1150FHVI [Member]nonnum:domainItemTypedurationtrueauo

FhviMember

1151FRVI [Member]nonnum:domainItemTypedurationtrueauo

FrviMember

1152FFMI [Member]nonnum:domainItemTypedurationtrueauo

FfmiMember

1153FWSA and FTMI [Member]nonnum:domainItemTypedurationtrueauo

FwsaAndFtmiMember

1154PMSA [Member]nonnum:domainItemTypedurationtrueauo

PmsaMember

1155FLMI [Member]nonnum:domainItemTypedurationtrueauo

FlmiMember

1156DPLB [Member]nonnum:domainItemTypedurationtrueauo

DplbMember

1157DPHK [Member]nonnum:domainItemTypedurationtrueauo

DphkMember

1158BVLB [Member]nonnum:domainItemTypedurationtrueauo

BvlbMember

1159auo:AuOptronicsLCorpAulbMember (label)nonnum:domainItemTypedurationtrueauo

AuOptronicsLCorpAulbMember

1160auo:KonlyVentureCorpKonlyMember (label)nonnum:domainItemTypedurationtrueauo

KonlyVentureCorpKonlyMember

1161auo:RonlyVentureCorpRonlyMember (label)nonnum:domainItemTypedurationtrueauo

RonlyVentureCorpRonlyMember

1162auo:AuoGreenEnergyEuropeBvAenlMember (label)nonnum:domainItemTypedurationtrueauo

AuoGreenEnergyEuropeBvAenlMember

1163auo:ForceInternationalHoldingLtdFrviMember (label)nonnum:domainItemTypedurationtrueauo

ForceInternationalHoldingLtdFrviMember

1164auo:FortechInternationalCorpFtmiMember (label)nonnum:domainItemTypedurationtrueauo

FortechInternationalCorpFtmiMember

1165auo:ForwardOptronicsInternationalCorpFwsaMember (label)nonnum:domainItemTypedurationtrueauo

ForwardOptronicsInternationalCorpFwsaMember

1166auo:AuOptronicsSingaporePteLtdAusgMember (label)nonnum:domainItemTypedurationtrueauo

AuOptronicsSingaporePteLtdAusgMember

1167FTMI [Member]nonnum:domainItemTypedurationtrueauo

FtmiMember

1168Additional corporate income tax rate on undistributed earnings [Member]nonnum:domainItemTypedurationtrueauo

AdditionalCorporateIncomeTaxRateOnUndistributedEarningsMember

1169ROC [Member]nonnum:domainItemTypedurationtrueauo

RocMember

1170auo:TotalCashConsiderationReceived (label)xbrli:monetaryItemTypedurationdebitfalseauo

TotalCashConsiderationReceived

The cash inflow associated with the disposal of part of ownership interest in subsidiary without losing control.

1171auo:GainsOnDisposalOfSubsidiaries (label)xbrli:monetaryItemTypedurationcreditfalseauo

GainsOnDisposalOfSubsidiaries

The gain (loss) on disposals of investments in subsidiaries.

1172Amendment to statutory tax rate [Member]nonnum:domainItemTypedurationtrueauo

AmendmentToStatutoryTaxRateMember

1173auo:TransferFromPropertyPlantAndEquipmentToInvestmentProperty (label)xbrli:monetaryItemTypedurationcreditfalseauo

TransferFromPropertyPlantAndEquipmentToInvestmentProperty

The transfer from property, plant and equipment to investment property.

1174Collection terms for leasing [Member]nonnum:domainItemTypedurationtrueauo

CollectionTermsForLeasingMember

1175Disclosure of detailed information about long term borrowings [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfDetailedInformationAboutLongTermBorrowingsLineItems

1176Syndicated loans [Member]nonnum:domainItemTypedurationtrueauo

SyndicatedLoansMember

1177auo:NumberOfOrdinarySharesRepresented (label)xbrli:sharesItemTypeinstantfalseauo

NumberOfOrdinarySharesRepresented

The number of ordinary shares represented in relation to the number of shares issued by the entity in ADSs.

1178Disclosure of outstanding stock options [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfOutstandingStockOptionsLineItems

1179Disclosure of terms and conditions relating to employee stock option plan [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfTermsAndConditionsRelatingToEmployeeStockOptionPlanLineItems

1180Disclosure of valuation information [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfValuationInformationLineItems

1181Disclosure of Share-based Payments [Line Items]xbrli:stringItemTypedurationtrueauo

DisclosureOfSharebasedPaymentsLineItems

1182auo:UnusedTaxLossesCarryforwards2009Member (label)nonnum:domainItemTypedurationtrueauo

UnusedTaxLossesCarryforwards2009Member

1183auo:UnusedTaxLossesCarryforwards2010Member (label)nonnum:domainItemTypedurationtrueauo

UnusedTaxLossesCarryforwards2010Member

1184auo:UnusedTaxLossesCarryforwards2011Member (label)nonnum:domainItemTypedurationtrueauo

UnusedTaxLossesCarryforwards2011Member

1185auo:UnusedTaxLossesCarryforwards2012Member (label)nonnum:domainItemTypedurationtrueauo

UnusedTaxLossesCarryforwards2012Member

1186auo:UnusedTaxLossesCarryforwards2013Member (label)nonnum:domainItemTypedurationtrueauo

UnusedTaxLossesCarryforwards2013Member

1187auo:UnusedTaxLossesCarryforwards2014Member (label)nonnum:domainItemTypedurationtrueauo

UnusedTaxLossesCarryforwards2014Member

1188auo:UnusedTaxLossesCarryforwards2015Member (label)nonnum:domainItemTypedurationtrueauo

UnusedTaxLossesCarryforwards2015Member

1189auo:UnusedTaxLossesCarryforwards2016Member (label)nonnum:domainItemTypedurationtrueauo

UnusedTaxLossesCarryforwards2016Member

1190auo:EstimatedUnusedTaxLossesCarryforwards2017Member (label)nonnum:domainItemTypedurationtrueauo

EstimatedUnusedTaxLossesCarryforwards2017Member

1191auo:LongtermBorrowingsIncludingCurrentInstallmentsMember (label)nonnum:domainItemTypedurationtrueauo

LongtermBorrowingsIncludingCurrentInstallmentsMember

1192Sensitivity Analysis [Axis]xbrli:stringItemTypedurationtrueauo

SensitivityAnalysisAxis

1193Sensitivity Analysis [Domain]nonnum:domainItemTypedurationtrueauo

SensitivityAnalysisDomain

1194Sensitivity analysis of foreign currency risk [Member]nonnum:domainItemTypedurationtrueauo

SensitivityAnalysisOfForeignCurrencyRiskMember

1195Major customers revenue [Member]nonnum:domainItemTypedurationtrueauo

MajorCustomersRevenueMember

1196auo:FinancialLiabilitiesAmountDenominatedInForeignCurrency (label)xbrli:monetaryItemTypeinstantdebitfalseauo

FinancialLiabilitiesAmountDenominatedInForeignCurrency

The amount denominated in foreign currency of a financial liability.

1197auo:FinancialLiabilitiesCarryingAmount (label)xbrli:monetaryItemTypeinstantdebitfalseauo

FinancialLiabilitiesCarryingAmount

The amount denominated in Taiwan Dollars of a financial liability.

1198Revenue Customer [Domain]nonnum:domainItemTypedurationtrueauo

RevenueCustomerDomain

1199auo:MajorCustomerMember (label)nonnum:domainItemTypedurationtrueauo

MajorCustomerMember

1200auo:PercentageOfConsolidatedNetRevenue (label)num:percentItemTypedurationfalseauo

PercentageOfConsolidatedNetRevenue

The percentage of consolidated net revenue.

1201Tainan Technology Industrial Park [Member]nonnum:domainItemTypedurationtrueauo

TainanTechnologyIndustrialParkMember

1202auo:BalanceOfImputationCreditAccountOfIntegratedIncomeTaxSystem (label)xbrli:monetaryItemTypeinstantcreditfalseauo

BalanceOfImputationCreditAccountOfIntegratedIncomeTaxSystem

Imputation is a system that allows the entity to pass on to their shareholders the benefit of the ROC income tax they have already paid.

1203Qisda Corporation [Member]nonnum:domainItemTypedurationtrueauo

QisdaCorporationMember

1204Mortgage Loans [Member]nonnum:domainItemTypedurationtrueauo

MortgageLoansMember

1205Unsecured Loans [Member]nonnum:domainItemTypedurationtrueauo

UnsecuredLoansMember

1206auo:AppreciationOrDepreciationRateOnEquityPrice (label)num:percentItemTypedurationfalseauo

AppreciationOrDepreciationRateOnEquityPrice

The appreciation or depreciation rate for changes in equity price of available for sale securities.

1207DPTW Option Plan [Member]nonnum:domainItemTypedurationtrueauo

DptwOptionPlanMember

1208auo:LongTermsBorrowingsMember (label)nonnum:domainItemTypedurationtrueauo

LongTermsBorrowingsMember

1209auo:UnrealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)xbrli:monetaryItemTypedurationcreditfalseauo

UnrealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss

The gains (losses) on financial assets at fair value through profit or loss.

1210auo:RealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)xbrli:monetaryItemTypedurationcreditfalseauo

RealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss

The gains (losses) on financial assets at fair value through profit or loss. [Refer: Financial assets at fair value through profit or loss]

1211auo:OtherPayablesDueToRelatedParties (label)xbrli:monetaryItemTypeinstantcreditfalseauo

OtherPayablesDueToRelatedParties

The amount of other payables due to related parties.

Model Structures


Model Structure
Network
101 - Document - Document And Entity Information
(http://auo.com/role/DocumentAndEntityInformation)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Document And Entity Information [Abstract]Abstractdurationauo:DocumentAndEntityInformationAbstract
2 Document Information [Table]Tabledurationdei:DocumentInformationTable
3 us-gaap:StatementClassOfStockAxis (label)Axisdurationus-gaap:StatementClassOfStockAxis
4 Class of Stock [Domain]Memberdurationus-gaap:ClassOfStockDomain
5 Document Information [Line Items]LineItemsdurationdei:DocumentInformationLineItems
6 Document TypeConcept (xbrli:stringItemType)durationdei:DocumentType
7 Amendment FlagConcept (Boolean)durationdei:AmendmentFlag
8 Document Period End DateConcept (Date)durationdei:DocumentPeriodEndDate
9 Document Fiscal Year FocusConcept (gYear)durationdei:DocumentFiscalYearFocus
10 Document Fiscal Period FocusConcept (xbrli:tokenItemType)durationdei:DocumentFiscalPeriodFocus
11 Entity Registrant NameConcept (String-Normalized)durationdei:EntityRegistrantName
12 Entity Central Index KeyConcept (xbrli:tokenItemType)durationdei:EntityCentralIndexKey
13 Current Fiscal Year End DateConcept (gMonthDay)durationdei:CurrentFiscalYearEndDate
14 Entity Well-known Seasoned IssuerConcept (xbrli:tokenItemType)durationdei:EntityWellKnownSeasonedIssuer
15 Entity Voluntary FilersConcept (xbrli:tokenItemType)durationdei:EntityVoluntaryFilers
16 Entity Current Reporting StatusConcept (xbrli:tokenItemType)durationdei:EntityCurrentReportingStatus
17 Entity Filer CategoryConcept (xbrli:stringItemType)durationdei:EntityFilerCategory
18 Trading SymbolConcept (String-Normalized)durationdei:TradingSymbol
19 Entity Common Stock, Shares OutstandingConcept (Shares)instantdei:EntityCommonStockSharesOutstanding

Model Structure
Network
102 - Statement - Consolidated Statements of Financial Position
(http://auo.com/role/ConsolidatedStatementsOfFinancialPosition)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Statement of Financial Position [Abstract]Abstractdurationifrs-full:StatementOfFinancialPositionAbstract
2 AssetsAbstractdurationifrs-full:AssetsAbstract
3 Current assets:Abstractdurationifrs-full:CurrentAssetsAbstract
4 ifrs-full:CashAndCashEquivalents (verboseLabel)Concept (Monetary)instantdebitifrs-full:CashAndCashEquivalents
5 ifrs-full:CurrentFinancialAssetsAtFairValueThroughProfitOrLoss (verboseLabel)Concept (Monetary)instantdebitifrs-full:CurrentFinancialAssetsAtFairValueThroughProfitOrLoss
6 Accounts receivable, netConcept (Monetary)instantdebitifrs-full:CurrentTradeReceivables
7 auo:CurrentAccountsReceivablesDueFromRelatedParties (verboseLabel)Concept (Monetary)instantdebitauo:CurrentAccountsReceivablesDueFromRelatedParties
8 ifrs-full:TradeAndOtherReceivablesDueFromRelatedParties (verboseLabel)Concept (Monetary)instantdebitifrs-full:TradeAndOtherReceivablesDueFromRelatedParties
9 Income taxes receivableConcept (Monetary)instantdebitifrs-full:CurrentTaxAssetsCurrent
10 ifrs-full:Inventories (verboseLabel)Concept (Monetary)instantdebitifrs-full:Inventories
11 Other current financial assetsConcept (Monetary)instantdebitifrs-full:OtherCurrentFinancialAssets
12 Noncurrent assets held for saleConcept (Monetary)instantdebitifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale
13 ifrs-full:OtherCurrentAssets (verboseLabel)Concept (Monetary)instantdebitifrs-full:OtherCurrentAssets
14 Total current assetsConcept (Monetary)instantdebitifrs-full:CurrentAssets
15 Noncurrent assets:Abstractdurationifrs-full:NoncurrentAssetsAbstract
16 ifrs-full:NoncurrentFinancialAssetsAvailableforsale (terseLabel)Concept (Monetary)instantdebitifrs-full:NoncurrentFinancialAssetsAvailableforsale
17 Investments in equity-accounted investeesConcept (Monetary)instantdebitifrs-full:InvestmentAccountedForUsingEquityMethod
18 ifrs-full:PropertyPlantAndEquipment (terseLabel)Concept (Monetary)instantdebitifrs-full:PropertyPlantAndEquipment
19 ifrs-full:InvestmentProperty (terseLabel)Concept (Monetary)instantdebitifrs-full:InvestmentProperty
20 ifrs-full:IntangibleAssetsOtherThanGoodwill (terseLabel)Concept (Monetary)instantdebitifrs-full:IntangibleAssetsOtherThanGoodwill
21 Deferred tax assetsConcept (Monetary)instantdebitifrs-full:DeferredTaxAssets
22 ifrs-full:OtherNoncurrentAssets (verboseLabel)Concept (Monetary)instantdebitifrs-full:OtherNoncurrentAssets
23 Total noncurrent assetsConcept (Monetary)instantdebitifrs-full:NoncurrentAssets
24 Total AssetsConcept (Monetary)instantdebitifrs-full:Assets
25 LiabilitiesAbstractdurationifrs-full:LiabilitiesAbstract
26 Current liabilities:Abstractdurationifrs-full:CurrentLiabilitiesAbstract
27 ifrs-full:ShorttermBorrowings (terseLabel)Concept (Monetary)instantcreditifrs-full:ShorttermBorrowings
28 ifrs-full:CurrentPortionOfLongtermBorrowings (verboseLabel)Concept (Monetary)instantcreditifrs-full:CurrentPortionOfLongtermBorrowings
29 ifrs-full:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss (verboseLabel)Concept (Monetary)instantcreditifrs-full:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss
30 ifrs-full:CurrentDerivativeFinancialLiabilities (verboseLabel)Concept (Monetary)instantcreditifrs-full:CurrentDerivativeFinancialLiabilities
31 Accounts payableConcept (Monetary)instantcreditifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
32 Accounts payable to related partiesConcept (Monetary)instantcreditifrs-full:TradeAndOtherCurrentPayablesToRelatedParties
33 Equipment and construction payableConcept (Monetary)instantcreditifrs-full:OtherCurrentPayables
34 Other payables to related partiesConcept (Monetary)instantcreditifrs-full:TradeAndOtherPayablesToRelatedParties
35 Current tax liabilitiesConcept (Monetary)instantcreditifrs-full:CurrentTaxLiabilitiesCurrent
36 ifrs-full:CurrentProvisions (verboseLabel)Concept (Monetary)instantcreditifrs-full:CurrentProvisions
37 Other current liabilitiesConcept (Monetary)instantcreditifrs-full:OtherCurrentLiabilities
38 Total current liabilitiesConcept (Monetary)instantcreditifrs-full:CurrentLiabilities
39 Noncurrent liabilities:Abstractdurationifrs-full:NoncurrentLiabilitiesAbstract
40 Long-term borrowings, excluding current installmentsConcept (Monetary)instantcreditifrs-full:LongtermBorrowings
41 ifrs-full:NoncurrentProvisions (terseLabel)Concept (Monetary)instantcreditifrs-full:NoncurrentProvisions
42 Deferred tax liabilitiesConcept (Monetary)instantcreditifrs-full:DeferredTaxLiabilities
43 Other noncurrent liabilitiesConcept (Monetary)instantcreditifrs-full:OtherNoncurrentLiabilities
44 Total noncurrent liabilitiesConcept (Monetary)instantcreditifrs-full:NoncurrentLiabilities
45 ifrs-full:Liabilities (totalLabel)Concept (Monetary)instantcreditifrs-full:Liabilities
46 EquityAbstractdurationifrs-full:EquityAbstract
47 Common stock, $10 par valueConcept (Monetary)instantcreditifrs-full:IssuedCapital
48 Capital surplusConcept (Monetary)instantcreditifrs-full:CapitalReserve
49 Retained earningsConcept (Monetary)instantcreditifrs-full:RetainedEarnings
50 Other components of equityConcept (Monetary)instantcreditifrs-full:OtherEquityInterest
51 Equity attributable to shareholders of AU Optronics Corp.Concept (Monetary)instantcreditifrs-full:EquityAttributableToOwnersOfParent
52 ifrs-full:NoncontrollingInterests (terseLabel)Concept (Monetary)instantcreditifrs-full:NoncontrollingInterests
53 ifrs-full:Equity (totalLabel)Concept (Monetary)instantcreditifrs-full:Equity
54 Total Liabilities and EquityConcept (Monetary)instantcreditifrs-full:EquityAndLiabilities

Model Structure
Network
103 - Statement - Consolidated Statements of Financial Position (Parenthetical)
(http://auo.com/role/ConsolidatedStatementsOfFinancialPositionParenthetical)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Statement of Financial Position [Abstract]Abstractdurationifrs-full:StatementOfFinancialPositionAbstract
2 Par value per shareConcept (Per-Share)instantifrs-full:ParValuePerShare

Model Structure
Network
104 - Statement - Consolidated Statements of Comprehensive Income
(http://auo.com/role/ConsolidatedStatementsOfComprehensiveIncome)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Statement of comprehensive income [abstract]Abstractdurationifrs-full:StatementOfComprehensiveIncomeAbstract
2 ifrs-full:Revenue (verboseLabel)Concept (Monetary)durationcreditifrs-full:Revenue
3 Cost of salesConcept (Monetary)durationdebitifrs-full:CostOfSales
4 Gross profitConcept (Monetary)durationcreditifrs-full:GrossProfit
5 Selling and distribution expensesConcept (Monetary)durationdebitifrs-full:DistributionAndAdministrativeExpense
6 General and administrative expensesConcept (Monetary)durationdebitifrs-full:SellingGeneralAndAdministrativeExpense
7 Research and development expensesConcept (Monetary)durationdebitifrs-full:ResearchAndDevelopmentExpense
8 ifrs-full:OtherIncome (label)Concept (Monetary)durationcreditifrs-full:OtherIncome
9 ifrs-full:OtherGainsLosses (verboseLabel)Concept (Monetary)durationcreditifrs-full:OtherGainsLosses
10 ifrs-full:FinanceCosts (negatedLabel)Concept (Monetary)durationdebitifrs-full:FinanceCosts
11 ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (verboseLabel)Concept (Monetary)durationcreditifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
12 ifrs-full:ProfitLossBeforeTax (totalLabel)Concept (Monetary)durationcreditifrs-full:ProfitLossBeforeTax
13 ifrs-full:IncomeTaxExpenseContinuingOperations (terseLabel)Concept (Monetary)durationdebitifrs-full:IncomeTaxExpenseContinuingOperations
14 ifrs-full:ProfitLoss (totalLabel)Concept (Monetary)durationcreditifrs-full:ProfitLoss
15 Other comprehensive incomeAbstractdurationifrs-full:OtherComprehensiveIncomeAbstract
16 Items that will never be reclassified to profit or lossAbstractdurationifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
17 ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (terseLabel)Concept (Monetary)durationcreditifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
18 Equity-accounted investees - share of other comprehensive income (loss)Concept (Monetary)durationcreditifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax
19 ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss (negatedLabel)Concept (Monetary)durationdebitifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss
20 Other comprehensive income that will not be reclassified to profit or loss, net of taxConcept (Monetary)durationcreditifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax
21 Items that are or may be reclassified subsequently to profit or lossAbstractdurationifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
22 Foreign operations - foreign currency translation differencesConcept (Monetary)durationcreditifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
23 Net change in fair value of available-for-sale financial assetsConcept (Monetary)durationcreditifrs-full:OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets
24 Effective portion of changes in fair value of cash flow hedgesConcept (Monetary)durationcreditifrs-full:OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations
25 Equity-accounted investees - share of other comprehensive income (loss)Concept (Monetary)durationcreditifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax
26 ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss (negatedLabel)Concept (Monetary)durationdebitifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss
27 Other comprehensive income that will be reclassified to profit or loss, net of taxConcept (Monetary)durationcreditifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
28 ifrs-full:OtherComprehensiveIncome (totalLabel)Concept (Monetary)durationcreditifrs-full:OtherComprehensiveIncome
29 ifrs-full:ComprehensiveIncome (totalLabel)Concept (Monetary)durationcreditifrs-full:ComprehensiveIncome
30 Profit (loss) attributable to:Abstractdurationifrs-full:ProfitLossAttributableToAbstract
31 ifrs-full:ProfitLossAttributableToOwnersOfParent (terseLabel)Concept (Monetary)durationcreditifrs-full:ProfitLossAttributableToOwnersOfParent
32 ifrs-full:ProfitLossAttributableToNoncontrollingInterests (terseLabel)Concept (Monetary)durationcreditifrs-full:ProfitLossAttributableToNoncontrollingInterests
33 Profit for the yearConcept (Monetary)durationcreditifrs-full:ProfitLoss
34 Total comprehensive income (loss) attributable to:Abstractdurationifrs-full:ComprehensiveIncomeAttributableToAbstract
35 Shareholders of AU Optronics Corp.Concept (Monetary)durationcreditifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
36 Non-controlling interestsConcept (Monetary)durationcreditifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
37 Total comprehensive income for the yearConcept (Monetary)durationcreditifrs-full:ComprehensiveIncome
38 Earnings per shareAbstractdurationifrs-full:EarningsPerShareAbstract
39 ifrs-full:BasicEarningsLossPerShare (terseLabel)Concept (Per-Share)durationifrs-full:BasicEarningsLossPerShare
40 ifrs-full:DilutedEarningsLossPerShare (definitionGuidance)Concept (Per-Share)durationifrs-full:DilutedEarningsLossPerShare

Model Structure
Network
105 - Statement - Consolidated Statements of Changes in Equity
(http://auo.com/role/ConsolidatedStatementsOfChangesInEquity)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Miscellaneous components of equity [abstract]Abstractdurationifrs-full:MiscellaneousComponentsOfEquityAbstract
2 Statement [Table]Tabledurationus-gaap:StatementTable
3 Components of equity [axis]Axisdurationifrs-full:ComponentsOfEquityAxis
4 Equity [Member]Memberdurationifrs-full:EquityMember
5 Capital surplus [member]Memberdurationifrs-full:SharePremiumMember
6 Legal reserve [member]Memberdurationifrs-full:StatutoryReserveMember
7 Unappropriated earnings (deficit) [member]Memberdurationifrs-full:CapitalReserveMember
8 Subtotal [member]Memberdurationifrs-full:RetainedEarningsMember
9 Cumulative translation differences [member]Memberdurationifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember
10 Unrealized gains (losses) on available-for-sale financial assets [member]Memberdurationifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember
11 Unrealized gains (losses) on cash flow hedges [member]Memberdurationifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember
12 Subtotal [member]Memberdurationauo:OtherComponentsOfEquitiesMember
13 Equity attributable to shareholders of AU Optronics Corp. [member]Memberdurationifrs-full:EquityAttributableToOwnersOfParentMember
14 Non-controlling interests [member]Memberdurationifrs-full:NoncontrollingInterestsMember
15 Common stock [member]Memberdurationauo:CommonStock1Member
16 Statement [Line Items]LineItemsdurationus-gaap:StatementLineItems
17 Appropriation of earningsAbstractdurationauo:AppropriationOfEarningsAbstract
18 ifrs-full:Equity (periodStartLabel)Concept (Monetary)instantcreditifrs-full:Equity
19 Legal reserveConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve
20 Cash dividends distributed to shareholdersConcept (Monetary)durationdebitifrs-full:DividendsPaid
21 ifrs-full:ProfitLoss (disclosureGuidance)Concept (Monetary)durationcreditifrs-full:ProfitLoss
22 Other comprehensive income, net of taxConcept (Monetary)durationcreditifrs-full:OtherComprehensiveIncome
23 ifrs-full:ComprehensiveIncome (verboseLabel)Concept (Monetary)durationcreditifrs-full:ComprehensiveIncome
24 Adjustments to capital surplus and accumulated deficit for changes in investees' equityConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings
25 Differences between acquisition price and carrying amount arising from acquisition of subsidiariesConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
26 Differences between consideration and carrying amount arising from disposal of interest in subsidiaryConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary
27 Group reorganizationConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughTransactionsWithOwners
28 Changes in non-controlling interestsConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries
29 Balance endingConcept (Monetary)instantcreditifrs-full:Equity

Model Structure
Network
106 - Statement - Consolidated Statements of Cash Flows
(http://auo.com/role/ConsolidatedStatementsOfCashFlows)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Statement of cash flows [abstract]Abstractdurationifrs-full:StatementOfCashFlowsAbstract
2 Cash flows from operating activities:Abstractdurationifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
3 ifrs-full:ProfitLossBeforeTax (terseLabel)Concept (Monetary)durationcreditifrs-full:ProfitLossBeforeTax
4 Adjustments for:Abstractdurationifrs-full:AdjustmentsForReconcileProfitLossAbstract
5 DepreciationConcept (Monetary)durationdebitifrs-full:DepreciationExpense
6 AmortizationConcept (Monetary)durationdebitifrs-full:AmortisationExpense
7 Interest expenseConcept (Monetary)durationdebitifrs-full:AdjustmentsForInterestExpense
8 Interest incomeConcept (Monetary)durationcreditifrs-full:AdjustmentsForInterestIncome
9 Dividend incomeConcept (Monetary)durationcreditifrs-full:AdjustmentsForDividendIncome
10 ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (negatedLabel)Concept (Monetary)durationcreditifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
11 ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (negatedLabel)Concept (Monetary)durationcreditifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
12 ifrs-full:GainsLossesOnDisposalsOfInvestments (negatedLabel)Concept (Monetary)durationcreditifrs-full:GainsLossesOnDisposalsOfInvestments
13 auo:InventoryWritedowns (terseLabel)Concept (Monetary)durationdebitauo:InventoryWritedowns
14 ifrs-full:ImpairmentLoss (verboseLabel)Concept (Monetary)durationdebitifrs-full:ImpairmentLoss
15 Losses on purchase of convertible bonds payableConcept (Monetary)durationdebitifrs-full:OtherAdjustmentsForNoncashItems
16 Effect of exchange rates on purchase and redemption of convertible bonds payableConcept (Monetary)durationdebitifrs-full:OtherAdjustmentsForWhichCashEffectsAreInvestingOrFinancingCashFlow
17 Changes in fair values of financial instrumentsConcept (Monetary)durationdebitifrs-full:AdjustmentsForFairValueGainsLosses
18 Unrealized foreign currency exchange losses (gains)Concept (Monetary)durationdebitifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains
19 OthersConcept (Monetary)durationdebitifrs-full:OtherAdjustmentsToReconcileProfitLoss
20 Subtotal of income and expense items not affecting cash flowsConcept (Monetary)durationdebitifrs-full:AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital
21 Change in operating assets and liabilities:Abstractdurationifrs-full:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPositionAbstract
22 accounts receivableConcept (Monetary)durationdebitifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
23 auo:AdjustmentsForDecreaseIncreaseInReceivablesFromRelatedParties (terseLabel)Concept (Monetary)durationdebitauo:AdjustmentsForDecreaseIncreaseInReceivablesFromRelatedParties
24 inventoriesConcept (Monetary)durationdebitifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories
25 other current assetsConcept (Monetary)durationdebitifrs-full:AdjustmentsForDecreaseIncreaseInOtherCurrentAssets
26 accounts payableConcept (Monetary)durationdebitifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables
27 auo:AdjustmentsForDecreaseIncreaseInPayableToRelatedParties (verboseLabel)Concept (Monetary)durationdebitauo:AdjustmentsForDecreaseIncreaseInPayableToRelatedParties
28 net defined benefit liabilityConcept (Monetary)durationdebitifrs-full:AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities
29 provisionsConcept (Monetary)durationdebitifrs-full:AdjustmentsForIncreaseInOtherProvisionsArisingFromPassageOfTime
30 other current liabilitiesConcept (Monetary)durationdebitifrs-full:AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities
31 Subtotal of net changes in operating assets and liabilitiesConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseInWorkingCapital
32 Cash generated from operationsConcept (Monetary)durationifrs-full:CashFlowsFromUsedInOperations
33 Cash received from interest incomeConcept (Monetary)durationdebitifrs-full:InterestReceivedClassifiedAsOperatingActivities
34 Cash received from dividend incomeConcept (Monetary)durationdebitifrs-full:DividendsReceivedClassifiedAsOperatingActivities
35 Cash paid for interestConcept (Monetary)durationcreditifrs-full:InterestPaidClassifiedAsOperatingActivities
36 Cash paid for income taxesConcept (Monetary)durationcreditifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities
37 Net cash provided by operating activitiesConcept (Monetary)durationifrs-full:CashFlowsFromUsedInOperatingActivities
38 Cash flows from investing activities:Abstractdurationifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
39 Acquisitions of available-for-sale financial assetsConcept (Monetary)durationcreditifrs-full:PurchaseOfAvailableforsaleFinancialAssets
40 Proceeds from disposals of available-for-sale financial assetsConcept (Monetary)durationdebitifrs-full:ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets
41 auo:ProceedsFromReturnOfCapitalByAvailableforsaleFinancialAssets (verboseLabel)Concept (Monetary)durationdebitauo:ProceedsFromReturnOfCapitalByAvailableforsaleFinancialAssets
42 Acquisitions of equity-accounted investeesConcept (Monetary)durationcreditifrs-full:PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod
43 Proceeds from disposals of equity-accounted investeesConcept (Monetary)durationdebitifrs-full:ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod
44 Acquisitions of property, plant and equipmentConcept (Monetary)durationcreditifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
45 ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (verboseLabel)Concept (Monetary)durationdebitifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
46 Decrease (increase) in refundable depositsConcept (Monetary)durationdebitifrs-full:CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments
47 Increase in intangible assetsConcept (Monetary)durationcreditifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
48 Decrease (increase) in other financial assetsConcept (Monetary)durationdebitifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities
49 Net cash inflows resulting from disposals of subsidiariesConcept (Monetary)durationdebitifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
50 Net cash used in investing activitiesConcept (Monetary)durationdebitifrs-full:CashFlowsFromUsedInInvestingActivities
51 Cash flows from financing activities:Abstractdurationifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
52 Increase (decrease) in short-term borrowingsConcept (Monetary)durationdebitifrs-full:CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings
53 auo:PaymentToAcquireConvertibleBondsPayable (negatedLabel)Concept (Monetary)durationcreditauo:PaymentToAcquireConvertibleBondsPayable
54 Redemption of convertible bonds payableConcept (Monetary)durationcreditifrs-full:RepaymentsOfBondsNotesAndDebentures
55 Proceeds from long-term borrowingsConcept (Monetary)durationdebitifrs-full:ProceedsFromNoncurrentBorrowings
56 Repayments of long-term borrowingsConcept (Monetary)durationcreditifrs-full:RepaymentsOfNoncurrentBorrowings
57 Increase (decrease) in guarantee deposits receivedConcept (Monetary)durationdebitifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities
58 Cash dividendsConcept (Monetary)durationcreditifrs-full:DividendsPaidClassifiedAsFinancingActivities
59 auo:NetChangeOfNocontrollingInterestAndOthers (negatedLabel)Concept (Monetary)durationcreditauo:NetChangeOfNocontrollingInterestAndOthers
60 Net cash provided by (used in) financing activitiesConcept (Monetary)durationdebitifrs-full:CashFlowsFromUsedInFinancingActivities
61 Effect of exchange rate change on cash and cash equivalentsConcept (Monetary)durationdebitifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
62 Net increase (decrease) in cash and cash equivalentsConcept (Monetary)durationdebitifrs-full:IncreaseDecreaseInCashAndCashEquivalents
63 ifrs-full:CashAndCashEquivalents (periodStartLabel)Concept (Monetary)instantdebitifrs-full:CashAndCashEquivalents
64 Cash and cash equivalents at December 31Concept (Monetary)instantdebitifrs-full:CashAndCashEquivalents

Model Structure
Network
107 - Disclosure - Organization
(http://auo.com/role/Organization)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOrganizationExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfOrganizationExplanatoryAbstract
2 Disclosure of notes and other explanatory information [text block]Concept (TextBlock)durationifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory

Model Structure
Network
108 - Disclosure - The Authorization of Financial Statements
(http://auo.com/role/AuthorizationOfFinancialStatements)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfAuthorisationOfFinancialStatementsAbstract (label)Abstractdurationauo:DisclosureOfAuthorisationOfFinancialStatementsAbstract
2 Disclosure of authorisation of financial statements [text block]Concept (TextBlock)durationifrs-full:DisclosureOfAuthorisationOfFinancialStatementsExplanatory

Model Structure
Network
109 - Disclosure - New Accounting Pronouncements Under International Financial Reporting Standards (“IFRS”)
(http://auo.com/role/NewAccountingPronouncementsUnderInternationalFinancialReportingStandardsIfrs)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of expected impact of initial application of new standards or interpretations [abstract]Abstractdurationifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsAbstract
2 Disclosure of expected impact of initial application of new standards or interpretations [text block]Concept (TextBlock)durationifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations

Model Structure
Network
110 - Disclosure - Summary of Significant Accounting Policies
(http://auo.com/role/SummaryOfSignificantAccountingPolicies)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSignificantAccountingPoliciesAbstract (label)Abstractdurationauo:DisclosureOfSignificantAccountingPoliciesAbstract
2 Disclosure of significant accounting policies [text block]Concept (TextBlock)durationifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory

Model Structure
Network
111 - Disclosure - Use of Judgments and Estimates
(http://auo.com/role/UseOfJudgmentsAndEstimates)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of changes in accounting estimates [abstract]Abstractdurationifrs-full:DisclosureOfChangesInAccountingEstimatesAbstract
2 Disclosure of changes in accounting estimates [text block]Concept (TextBlock)durationifrs-full:DisclosureOfChangesInAccountingEstimatesExplanatory

Model Structure
Network
112 - Disclosure - Cash and Cash Equivalents
(http://auo.com/role/CashAndCashEquivalents)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfCashAndCashEquivalentsAbstract (label)Abstractdurationauo:DisclosureOfCashAndCashEquivalentsAbstract
2 Disclosure of cash and cash equivalents [text block]Concept (TextBlock)durationifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory

Model Structure
Network
113 - Disclosure - Derivative Financial Instruments and Hedging Instruments
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstruments)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDerivativeFinancialInstrumentsAbstract (label)Abstractdurationauo:DisclosureOfDerivativeFinancialInstrumentsAbstract
2 Disclosure of derivative financial instruments [text block]Concept (TextBlock)durationifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory

Model Structure
Network
114 - Disclosure - Available-for-sale Financial Assets–noncurrent
(http://auo.com/role/AvailableforsaleFinancialAssetsnoncurrent)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfAvailableforsaleFinancialAssetsAbstract (label)Abstractdurationauo:DisclosureOfAvailableforsaleFinancialAssetsAbstract
2 Disclosure of available-for-sale financial assets [text block]Concept (TextBlock)durationifrs-full:DisclosureOfAvailableforsaleAssetsExplanatory

Model Structure
Network
115 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedParties)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfNotesAndAccountsReceivableAbstract (label)Abstractdurationauo:DisclosureOfNotesAndAccountsReceivableAbstract
2 Disclosure of trade and other receivables [text block]Concept (TextBlock)durationifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory

Model Structure
Network
116 - Disclosure - Inventories
(http://auo.com/role/Inventories)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfInventoriesAbstract (label)Abstractdurationauo:DisclosureOfInventoriesAbstract
2 Disclosure of inventories [text block]Concept (TextBlock)durationifrs-full:DisclosureOfInventoriesExplanatory

Model Structure
Network
117 - Disclosure - Noncurrent Assets Held for Sale
(http://auo.com/role/NoncurrentAssetsHeldForSale)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfNoncurrentAssetsHeldForSaleAbstract (label)Abstractdurationauo:DisclosureOfNoncurrentAssetsHeldForSaleAbstract
2 auo:DisclosureOfNoncurrentAssetsHeldForSaleTextBlock (verboseLabel)Concept (TextBlock)durationauo:DisclosureOfNoncurrentAssetsHeldForSaleTextBlock

Model Structure
Network
118 - Disclosure - Investments in equity-accounted Investees
(http://auo.com/role/InvestmentsInEquityaccountedInvestees)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract (label)Abstractdurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract
2 Disclosure of investments accounted for using equity method [text block]Concept (TextBlock)durationifrs-full:DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory

Model Structure
Network
119 - Disclosure - Disposal of Part of Ownership Interest in Subsidiary without Losing Control
(http://auo.com/role/DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControl)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlAbstract (label)Abstractdurationauo:DisclosureOfDisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlAbstract
2 Disclosure of effects of changes in parent's ownership interest in subsidiary that do not result in loss of control on equity attributable to owners of parent [text block]Concept (TextBlock)durationifrs-full:DisclosureOfEffectsOfChangesInParentsOwnershipInterestInSubsidiaryThatDoNotResultInLossOfControlOnEquityAttributableToOwnersOfParentExplanatory

Model Structure
Network
120 - Disclosure - Disposal of Subsidiaries
(http://auo.com/role/DisposalOfSubsidiaries)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDisposalOfSubsidiariesAbstract (label)Abstractdurationauo:DisclosureOfDisposalOfSubsidiariesAbstract
2 auo:DisclosureOfLossControlOfSubsidiaryTextBlock (verboseLabel)Concept (TextBlock)durationauo:DisclosureOfLossControlOfSubsidiaryTextBlock

Model Structure
Network
121 - Disclosure - Property, Plant and Equipment
(http://auo.com/role/PropertyPlantAndEquipment)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract (label)Abstractdurationifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
2 Disclosure of property, plant and equipment [text block]Concept (TextBlock)durationifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory

Model Structure
Network
122 - Disclosure - Investment Property
(http://auo.com/role/InvestmentProperty)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of detailed information about investment property [abstract]Abstractdurationifrs-full:DisclosureOfInvestmentPropertyAbstract
2 Disclosure of investment property [text block]Concept (TextBlock)durationifrs-full:DisclosureOfInvestmentPropertyExplanatory

Model Structure
Network
123 - Disclosure - Intangible Assets
(http://auo.com/role/IntangibleAssets)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of detailed information about intangible assets [abstract]Abstractdurationifrs-full:DisclosureOfIntangibleAssetsAbstract
2 Disclosure of intangible assets [text block]Concept (TextBlock)durationifrs-full:DisclosureOfIntangibleAssetsExplanatory

Model Structure
Network
124 - Disclosure - Other Current Assets and Other Noncurrent Assets
(http://auo.com/role/OtherCurrentAssetsAndOtherNoncurrentAssets)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOtherCurrentAssetsAndOtherNoncurrentAssetsAbstract (label)Abstractdurationauo:DisclosureOfOtherCurrentAssetsAndOtherNoncurrentAssetsAbstract
2 Disclosure of other assets [text block]Concept (TextBlock)durationifrs-full:DisclosureOfOtherAssetsExplanatory

Model Structure
Network
125 - Disclosure - Short-term Borrowings
(http://auo.com/role/ShorttermBorrowings)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfShortTermBorrowingsAbstract (label)Abstractdurationauo:DisclosureOfShortTermBorrowingsAbstract
2 Disclosure of other current liabilities [text block]Concept (TextBlock)durationifrs-full:DisclosureOfOtherCurrentLiabilitiesExplanatory

Model Structure
Network
126 - Disclosure - Convertible Bonds Payable
(http://auo.com/role/ConvertibleBondsPayable)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of convertible bonds payable [Abstract]Abstractdurationauo:DisclosureOfConvertibleBondsPayableAbstract
2 Disclosure of debt instruments [text block]Concept (TextBlock)durationifrs-full:DisclosureOfDebtSecuritiesExplanatory

Model Structure
Network
127 - Disclosure - Long-term Borrowings
(http://auo.com/role/LongtermBorrowings)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfLongTermAbstract (label)Abstractdurationauo:DisclosureOfLongTermAbstract
2 Disclosure of other non-current liabilities [text block]Concept (TextBlock)durationifrs-full:DisclosureOfOtherNoncurrentLiabilitiesExplanatory

Model Structure
Network
128 - Disclosure - Provisions
(http://auo.com/role/Provisions)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfProvisionsAbstract (label)Abstractdurationauo:DisclosureOfProvisionsAbstract
2 Disclosure of other provisions [text block]Concept (TextBlock)durationifrs-full:DisclosureOfOtherProvisionsExplanatory

Model Structure
Network
129 - Disclosure - Operating Leases
(http://auo.com/role/OperatingLeases)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOperatingLeasesAbstract (label)Abstractdurationauo:DisclosureOfOperatingLeasesAbstract
2 Disclosure of leases [text block]Concept (TextBlock)durationifrs-full:DisclosureOfLeasesExplanatory

Model Structure
Network
130 - Disclosure - Employee Benefits
(http://auo.com/role/EmployeeBenefits)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfEmployeeBenefitsAbstract (label)Abstractdurationauo:DisclosureOfEmployeeBenefitsAbstract
2 Disclosure of employee benefits [text block]Concept (TextBlock)durationifrs-full:DisclosureOfEmployeeBenefitsExplanatory

Model Structure
Network
131 - Disclosure - Capital and Other Components of Equity
(http://auo.com/role/CapitalAndOtherComponentsOfEquity)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfCapitalAndOtherComponentsOfEquityAbstract (label)Abstractdurationauo:DisclosureOfCapitalAndOtherComponentsOfEquityAbstract
2 Disclosure of share capital, reserves and other equity interest [text block]Concept (TextBlock)durationifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory

Model Structure
Network
132 - Disclosure - Share-based Payments
(http://auo.com/role/SharebasedPayments)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSharebasedPaymentsAbstract (label)Abstractdurationauo:DisclosureOfSharebasedPaymentsAbstract
2 Disclosure of share-based payment arrangements [text block]Concept (TextBlock)durationifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory

Model Structure
Network
133 - Disclosure - Revenue
(http://auo.com/role/Revenue)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRevenueAbstract (label)Abstractdurationauo:DisclosureOfRevenueAbstract
2 Disclosure of revenue [text block]Concept (TextBlock)durationifrs-full:DisclosureOfRevenueExplanatory

Model Structure
Network
134 - Disclosure - Remuneration to Employees and Directors
(http://auo.com/role/RemunerationToEmployeesAndDirectors)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRemunerationToEmployeesAndDirectorsAbstract (label)Abstractdurationauo:DisclosureOfRemunerationToEmployeesAndDirectorsAbstract
2 Disclosure of information about employees [text block]Concept (TextBlock)durationifrs-full:DisclosureOfInformationAboutEmployeesExplanatory

Model Structure
Network
135 - Disclosure - The Nature of Expenses
(http://auo.com/role/NatureOfExpenses)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfExpensesByNatureExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfExpensesByNatureExplanatoryAbstract
2 Disclosure of expenses by nature [text block]Concept (TextBlock)durationifrs-full:DisclosureOfExpensesByNatureExplanatory

Model Structure
Network
136 - Disclosure - Other Income
(http://auo.com/role/OtherIncome)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOtherIncomeExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfOtherIncomeExplanatoryAbstract
2 Disclosure of other operating income [text block]Concept (TextBlock)durationifrs-full:DisclosureOfOtherOperatingIncomeExplanatory

Model Structure
Network
137 - Disclosure - Other Gains and Losses
(http://auo.com/role/OtherGainsAndLosses)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOtherGainsAndLossesAbstract (label)Abstractdurationauo:DisclosureOfOtherGainsAndLossesAbstract
2 auo:DisclosureOfOtherGainsAndLossesTextBlock (verboseLabel)Concept (TextBlock)durationauo:DisclosureOfOtherGainsAndLossesTextBlock

Model Structure
Network
138 - Disclosure - Finance Costs
(http://auo.com/role/FinanceCosts)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinanceCostExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfFinanceCostExplanatoryAbstract
2 Disclosure of finance cost [text block]Concept (TextBlock)durationifrs-full:DisclosureOfFinanceCostExplanatory

Model Structure
Network
139 - Disclosure - Income Taxes
(http://auo.com/role/IncomeTaxes)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfIncomeTaxExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfIncomeTaxExplanatoryAbstract
2 Disclosure of income tax [text block]Concept (TextBlock)durationifrs-full:DisclosureOfIncomeTaxExplanatory

Model Structure
Network
140 - Disclosure - Earnings per Share
(http://auo.com/role/EarningsPerShare)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfEarningsPerShareAbstract (label)Abstractdurationauo:DisclosureOfEarningsPerShareAbstract
2 Disclosure of earnings per share [text block]Concept (TextBlock)durationifrs-full:DisclosureOfEarningsPerShareExplanatory

Model Structure
Network
141 - Disclosure - Financial Instruments
(http://auo.com/role/FinancialInstruments)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinancialInstrumentAbstract (label)Abstractdurationauo:DisclosureOfFinancialInstrumentAbstract
2 Disclosure of financial instruments [text block]Concept (TextBlock)durationifrs-full:DisclosureOfFinancialInstrumentsExplanatory

Model Structure
Network
142 - Disclosure - Financial Risk Management
(http://auo.com/role/FinancialRiskManagement)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinancialRiskManagementExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfFinancialRiskManagementExplanatoryAbstract
2 Disclosure of financial risk management [text block]Concept (TextBlock)durationifrs-full:DisclosureOfFinancialRiskManagementExplanatory

Model Structure
Network
143 - Disclosure - Capital Management
(http://auo.com/role/CapitalManagement)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of objectives, policies and processes for managing capital [abstract]Abstractdurationifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract
2 Disclosure of objectives, policies and processes for managing capital [text block]Concept (TextBlock)durationifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory

Model Structure
Network
144 - Disclosure - Related-party Transactions
(http://auo.com/role/RelatedpartyTransactions)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRelatedPartyTransactionsAbstract (label)Abstractdurationauo:DisclosureOfRelatedPartyTransactionsAbstract
2 Disclosure of related party [text block]Concept (TextBlock)durationifrs-full:DisclosureOfRelatedPartyExplanatory

Model Structure
Network
145 - Disclosure - Pledged Assets
(http://auo.com/role/PledgedAssets)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfPledgedAssetsAbstract (label)Abstractdurationauo:DisclosureOfPledgedAssetsAbstract
2 Disclosure of collateral [text block]Concept (TextBlock)durationifrs-full:DisclosureOfCollateralExplanatory

Model Structure
Network
146 - Disclosure - Contingent Liabilities and Commitments
(http://auo.com/role/ContingentLiabilitiesAndCommitments)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfContingentLiabilitiesAndCommitmentsAbstract (label)Abstractdurationauo:DisclosureOfContingentLiabilitiesAndCommitmentsAbstract
2 Disclosure of commitments and contingent liabilities [text block]Concept (TextBlock)durationifrs-full:DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory

Model Structure
Network
147 - Disclosure - Segment, Geographic and Revenue Information
(http://auo.com/role/SegmentGeographicAndRevenueInformation)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSegmentGeographicAndRevenueInformationAbstract (label)Abstractdurationauo:DisclosureOfSegmentGeographicAndRevenueInformationAbstract
2 Disclosure of entity's operating segments [text Block]Concept (TextBlock)durationifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory

Model Structure
Network
148 - Disclosure - Subsequent Events
(http://auo.com/role/SubsequentEvents)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSubsequentEventAbstract (label)Abstractdurationauo:DisclosureOfSubsequentEventAbstract
2 Disclosure of events after reporting period [text block]Concept (TextBlock)durationifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory

Model Structure
Network
149 - Disclosure - Summary of Significant Accounting Policies (Policies)
(http://auo.com/role/SummaryOfSignificantAccountingPoliciesPolicies)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSignificantAccountingPoliciesAbstract (label)Abstractdurationauo:DisclosureOfSignificantAccountingPoliciesAbstract
2 Statement of IFRS compliance [text block]Concept (TextBlock)durationifrs-full:StatementOfIFRSCompliance
3 Disclosure of basis of preparation of financial statements [text block]Concept (TextBlock)durationifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
4 Disclosure of basis of consolidation [text block]Concept (TextBlock)durationifrs-full:DisclosureOfBasisOfConsolidationExplanatory
5 Description of accounting policy for foreign currency translation [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
6 auo:DescriptionOfAccountingPolicyForClassificationOfCurrentAndNonCurrentAssetsAndLiabilitiesTextBlock (terseLabel)Concept (TextBlock)durationauo:DescriptionOfAccountingPolicyForClassificationOfCurrentAndNonCurrentAssetsAndLiabilitiesTextBlock
7 Description of accounting policy for determining components of cash and cash equivalents [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
8 Description of accounting policy for financial instruments [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
9 Description of accounting policy for measuring inventories [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
10 Description of accounting policy for non-current assets or disposal groups classified as held for sale [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory
11 Description of accounting policy for investment in associates [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForInvestmentInAssociates
12 Description of accounting policy for investments in joint ventures [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForInvestmentsInJointVentures
13 Description of accounting policy for investment property [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForInvestmentPropertyExplanatory
14 Description of accounting policy for property, plant and equipment [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
15 auo:DescriptionOfAccountingPolicyForLongTermPrepaidRentTextBlock (verboseLabel)Concept (TextBlock)durationauo:DescriptionOfAccountingPolicyForLongTermPrepaidRentTextBlock
16 Description of accounting policy for leases [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory
17 Description of accounting policy for intangible assets and goodwill [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory
18 Description of accounting policy for impairment of non-financial assets [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory
19 Description of accounting policy for provisions [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
20 Description of accounting policy for recognition of revenue [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
21 Description of accounting policy for employee benefits [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
22 Description of accounting policy for share-based payment transactions [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
23 Description of accounting policy for income tax [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
24 Description of accounting policy for business combinations [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory
25 Description of accounting policy for earnings per share [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
26 Description of accounting policy for segment reporting [text block]Concept (TextBlock)durationifrs-full:DescriptionOfAccountingPolicyForSegmentReportingExplanatory

Model Structure
Network
150 - Disclosure - Summary of Significant Accounting Policies (Tables)
(http://auo.com/role/SummaryOfSignificantAccountingPoliciesTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSignificantAccountingPoliciesAbstract (label)Abstractdurationauo:DisclosureOfSignificantAccountingPoliciesAbstract
2 auo:DisclosureOfDetailedInformationAboutSubsidiariesInConsolidatedFinancialStatementsTextBlock (verboseLabel)Concept (TextBlock)durationauo:DisclosureOfDetailedInformationAboutSubsidiariesInConsolidatedFinancialStatementsTextBlock

Model Structure
Network
151 - Disclosure - Cash and Cash Equivalents (Tables)
(http://auo.com/role/CashAndCashEquivalentsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfCashAndCashEquivalentsAbstract (label)Abstractdurationauo:DisclosureOfCashAndCashEquivalentsAbstract
2 Schedule of cash and bank balances [text block]Concept (TextBlock)durationifrs-full:DisclosureOfCashAndBankBalancesAtCentralBanksExplanatory

Model Structure
Network
152 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Tables)
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstrumentsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDerivativeFinancialInstrumentsAbstract (label)Abstractdurationauo:DisclosureOfDerivativeFinancialInstrumentsAbstract
2 Schedule of financial instruments [text block]Concept (TextBlock)durationifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory
3 auo:ScheduleOfForeignCurrencyForwardContractsTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfForeignCurrencyForwardContractsTextBlock
4 auo:ScheduleOfGainOrLossOfForeignCurrencyForwardContractsTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfGainOrLossOfForeignCurrencyForwardContractsTextBlock
5 Disclosure of detailed information about hedging instruments [text block]Concept (TextBlock)durationifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory

Model Structure
Network
153 - Disclosure - Available-for-sale Financial Assets–noncurrent (Tables)
(http://auo.com/role/AvailableforsaleFinancialAssetsnoncurrentTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfAvailableforsaleFinancialAssetsAbstract (label)Abstractdurationauo:DisclosureOfAvailableforsaleFinancialAssetsAbstract
2 auo:ScheduleOfAvailableforsaleFinancialAssetsTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfAvailableforsaleFinancialAssetsTextBlock

Model Structure
Network
154 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Tables)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfNotesAndAccountsReceivableAbstract (label)Abstractdurationauo:DisclosureOfNotesAndAccountsReceivableAbstract
2 auo:ScheduleOfTradeReceivablesTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfTradeReceivablesTextBlock
3 Analysis of age of financial assets that are past due but not impaired [text block]Concept (TextBlock)durationifrs-full:AnalysisOfAgeOfFinancialAssetsThatArePastDueButNotImpaired
4 auo:ScheduleOfAllowanceForDoubtfulAccountsTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfAllowanceForDoubtfulAccountsTextBlock
5 auo:ScheduleOfTradeReceivablesFactoringTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfTradeReceivablesFactoringTextBlock

Model Structure
Network
155 - Disclosure - Inventories (Tables)
(http://auo.com/role/InventoriesTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfInventoriesAbstract (label)Abstractdurationauo:DisclosureOfInventoriesAbstract
2 auo:ScheduleofinventoryTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleofinventoryTextBlock

Model Structure
Network
156 - Disclosure - Noncurrent Assets Held for Sale (Tables)
(http://auo.com/role/NoncurrentAssetsHeldForSaleTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfNoncurrentAssetsHeldForSaleAbstract (label)Abstractdurationauo:DisclosureOfNoncurrentAssetsHeldForSaleAbstract
2 auo:DisclosureOfDetailedInformationAboutNoncurrentAssetsHeldForSaleTextBlock (terseLabel)Concept (TextBlock)durationauo:DisclosureOfDetailedInformationAboutNoncurrentAssetsHeldForSaleTextBlock

Model Structure
Network
157 - Disclosure - Investments in equity-accounted Investees (Tables)
(http://auo.com/role/InvestmentsInEquityaccountedInvesteesTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract (label)Abstractdurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract
2 Schedule of interests in other entities [text block]Concept (TextBlock)durationifrs-full:DisclosureOfInterestsInOtherEntitiesExplanatory
3 Schedule of interests in associates [text block]Concept (TextBlock)durationifrs-full:DisclosureOfInterestsInAssociatesExplanatory
4 Schedule of joint ventures [text block]Concept (TextBlock)durationifrs-full:DisclosureOfJointVenturesExplanatory

Model Structure
Network
158 - Disclosure - Disposal of Part of Ownership Interest in Subsidiary without Losing Control (Tables)
(http://auo.com/role/DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlAbstract (label)Abstractdurationauo:DisclosureOfDisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlAbstract
2 auo:DisclosureOfEffectsOfChangesInParentsOwnershipInterestInSubsidiaryThatDoNotResultInLossOfControlOnEquityAttributableToOwnersOfParentExplanatoryTextBlock (verboseLabel)Concept (TextBlock)durationauo:DisclosureOfEffectsOfChangesInParentsOwnershipInterestInSubsidiaryThatDoNotResultInLossOfControlOnEquityAttributableToOwnersOfParentExplanatoryTextBlock

Model Structure
Network
159 - Disclosure - Disposal of Subsidiaries (Tables)
(http://auo.com/role/DisposalOfSubsidiariesTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDisposalOfSubsidiariesAbstract (label)Abstractdurationauo:DisclosureOfDisposalOfSubsidiariesAbstract
2 auo:DisclosureOfDetailedInformationAboutCarryingValueOfAssetsAndLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposedTextBlock (label)Concept (TextBlock)durationauo:DisclosureOfDetailedInformationAboutCarryingValueOfAssetsAndLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposedTextBlock

Model Structure
Network
160 - Disclosure - Property, Plant and Equipment (Tables)
(http://auo.com/role/PropertyPlantAndEquipmentTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract (label)Abstractdurationifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
2 Schedule of property, plant and equipment [text block]Concept (TextBlock)durationifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
3 Disclosure of significant unobservable inputs used in fair value measurement of assets [text block]Concept (TextBlock)durationifrs-full:DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory

Model Structure
Network
161 - Disclosure - Investment Property (Tables)
(http://auo.com/role/InvestmentPropertyTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of detailed information about investment property [abstract]Abstractdurationifrs-full:DisclosureOfInvestmentPropertyAbstract
2 Schedule of investment property [text block]Concept (TextBlock)durationifrs-full:DisclosureOfDetailedInformationAboutInvestmentPropertyExplanatory
3 auo:DisclosureOfSignificantUnobservableInputsInValuationTechniquesUsedTextBlock (label)Concept (TextBlock)durationauo:DisclosureOfSignificantUnobservableInputsInValuationTechniquesUsedTextBlock

Model Structure
Network
162 - Disclosure - Intangible Assets (Tables)
(http://auo.com/role/IntangibleAssetsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of detailed information about intangible assets [abstract]Abstractdurationifrs-full:DisclosureOfIntangibleAssetsAbstract
2 Schedule of intangible assets [text block]Concept (TextBlock)durationifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory

Model Structure
Network
163 - Disclosure - Other Current Assets and Other Noncurrent Assets (Tables)
(http://auo.com/role/OtherCurrentAssetsAndOtherNoncurrentAssetsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOtherCurrentAssetsAndOtherNoncurrentAssetsAbstract (label)Abstractdurationauo:DisclosureOfOtherCurrentAssetsAndOtherNoncurrentAssetsAbstract
2 auo:ScheduleOfOtherAssetsTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfOtherAssetsTextBlock

Model Structure
Network
164 - Disclosure - Short-term Borrowings (Tables)
(http://auo.com/role/ShorttermBorrowingsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfShortTermBorrowingsAbstract (label)Abstractdurationauo:DisclosureOfShortTermBorrowingsAbstract
2 auo:ScheduleOfShortTermBorrowingsTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfShortTermBorrowingsTextBlock

Model Structure
Network
165 - Disclosure - Long-term Borrowings (Tables)
(http://auo.com/role/LongtermBorrowingsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfLongTermAbstract (label)Abstractdurationauo:DisclosureOfLongTermAbstract
2 auo:ScheduleOfLongTermBorrowingsTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfLongTermBorrowingsTextBlock
3 auo:DisclosureOfDetailedInformationAboutReconciliationOfLiabilitiesToCashFlowArisingFromFinancingActivitiesExplanatoryTextBlock (label)Concept (TextBlock)durationauo:DisclosureOfDetailedInformationAboutReconciliationOfLiabilitiesToCashFlowArisingFromFinancingActivitiesExplanatoryTextBlock

Model Structure
Network
166 - Disclosure - Provisions (Tables)
(http://auo.com/role/ProvisionsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfProvisionsAbstract (label)Abstractdurationauo:DisclosureOfProvisionsAbstract
2 auo:ScheduleOfProvisionsTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfProvisionsTextBlock

Model Structure
Network
167 - Disclosure - Operating Leases (Tables)
(http://auo.com/role/OperatingLeasesTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOperatingLeasesAbstract (label)Abstractdurationauo:DisclosureOfOperatingLeasesAbstract
2 Schedule of future maturities of operating lease payments [text block]Concept (TextBlock)durationifrs-full:DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory
3 Schedule of future maturities of finance lease receivable [text block]Concept (TextBlock)durationifrs-full:DisclosureOfMaturityAnalysisOfFinanceLeasePaymentsReceivableExplanatory

Model Structure
Network
168 - Disclosure - Employee Benefits (Tables)
(http://auo.com/role/EmployeeBenefitsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfEmployeeBenefitsAbstract (label)Abstractdurationauo:DisclosureOfEmployeeBenefitsAbstract
2 auo:ScheduleOfNetDefinedBenefitLiabilityTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfNetDefinedBenefitLiabilityTextBlock
3 auo:ScheduleOfReconciliationForNetDefinedBenefitLiabilityAndItsComponentsTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfReconciliationForNetDefinedBenefitLiabilityAndItsComponentsTextBlock
4 auo:ScheduleOfPrincipalActuarialAssumptionsUsedTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfPrincipalActuarialAssumptionsUsedTextBlock
5 Disclosure of additional information about defined benefit plans [text block]Concept (TextBlock)durationifrs-full:DisclosureOfAdditionalInformationAboutDefinedBenefitPlansExplanatory

Model Structure
Network
169 - Disclosure - Capital and Other Components of Equity (Tables)
(http://auo.com/role/CapitalAndOtherComponentsOfEquityTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfCapitalAndOtherComponentsOfEquityAbstract (label)Abstractdurationauo:DisclosureOfCapitalAndOtherComponentsOfEquityAbstract
2 Schedule of reserves within equity [text block]Concept (TextBlock)durationifrs-full:DisclosureOfReservesAndOtherEquityInterestExplanatory
3 auo:DisclosureOfAppropriationOfEarningsTextBlock (verboseLabel)Concept (TextBlock)durationauo:DisclosureOfAppropriationOfEarningsTextBlock
4 auo:ScheduleOfOtherComponentsOfEquityTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfOtherComponentsOfEquityTextBlock
5 auo:ScheduleOfNoncontrollingInterestsTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfNoncontrollingInterestsTextBlock

Model Structure
Network
170 - Disclosure - Share-based Payments (Tables)
(http://auo.com/role/SharebasedPaymentsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSharebasedPaymentsAbstract (label)Abstractdurationauo:DisclosureOfSharebasedPaymentsAbstract
2 auo:ScheduleOfNumberAndWeightedAverageExercisePricesOfDtpwOptionPlanTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfNumberAndWeightedAverageExercisePricesOfDtpwOptionPlanTextBlock
3 auo:ScheduleOfTermsAndConditionsOfActwOptionPlanTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfTermsAndConditionsOfActwOptionPlanTextBlock
4 auo:ScheduleOfValuationInformationOfActwOptionPlanTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfValuationInformationOfActwOptionPlanTextBlock
5 auo:ScheduleOfNumberAndWeightedAverageExercisePricesOfActwOptionPlanTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfNumberAndWeightedAverageExercisePricesOfActwOptionPlanTextBlock

Model Structure
Network
171 - Disclosure - Revenue (Tables)
(http://auo.com/role/RevenueTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRevenueAbstract (label)Abstractdurationauo:DisclosureOfRevenueAbstract
2 auo:ScheduleOfRevenuesTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfRevenuesTextBlock

Model Structure
Network
172 - Disclosure - The Nature of Expenses (Tables)
(http://auo.com/role/NatureOfExpensesTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfExpensesByNatureExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfExpensesByNatureExplanatoryAbstract
2 auo:ScheduleOfExpensesByNatureTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfExpensesByNatureTextBlock

Model Structure
Network
173 - Disclosure - Other Income (Tables)
(http://auo.com/role/OtherIncomeTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOtherIncomeExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfOtherIncomeExplanatoryAbstract
2 auo:ScheduleOfOtherIncomeTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfOtherIncomeTextBlock

Model Structure
Network
174 - Disclosure - Other Gains and Losses (Tables)
(http://auo.com/role/OtherGainsAndLossesTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOtherGainsAndLossesAbstract (label)Abstractdurationauo:DisclosureOfOtherGainsAndLossesAbstract
2 auo:ScheduleOfOtherGainsAndLossesTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfOtherGainsAndLossesTextBlock

Model Structure
Network
175 - Disclosure - Finance Costs (Tables)
(http://auo.com/role/FinanceCostsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinanceCostExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfFinanceCostExplanatoryAbstract
2 Schedule of borrowing costs [text block]Concept (TextBlock)durationifrs-full:DisclosureOfBorrowingCostsExplanatory

Model Structure
Network
176 - Disclosure - Income Taxes (Tables)
(http://auo.com/role/IncomeTaxesTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfIncomeTaxExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfIncomeTaxExplanatoryAbstract
2 auo:ScheduleOfComponentsOfIncomeTaxExpenseTableTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfComponentsOfIncomeTaxExpenseTableTextBlock
3 auo:ScheduleOfInformationAboutIncomeTaxesExpenseBenefitRecognizedDirectlyInOtherComprehensiveIncomeTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfInformationAboutIncomeTaxesExpenseBenefitRecognizedDirectlyInOtherComprehensiveIncomeTextBlock
4 auo:ScheduleOfIncomeTaxReconciliationTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfIncomeTaxReconciliationTextBlock
5 Schedule of deferred taxes [text block]Concept (TextBlock)durationifrs-full:DisclosureOfDeferredTaxesExplanatory
6 auo:ScheduleOfChangesInDeferredTaxAssetsAndLiabilitiesTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfChangesInDeferredTaxAssetsAndLiabilitiesTextBlock
7 auo:ScheduleOfUnrecognizedDeferredTaxAssetsTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfUnrecognizedDeferredTaxAssetsTextBlock
8 auo:ScheduleOfInformationAboutUnusedTaxLossesCarryforwardsTextBlock (definitionGuidance)Concept (TextBlock)durationauo:ScheduleOfInformationAboutUnusedTaxLossesCarryforwardsTextBlock

Model Structure
Network
177 - Disclosure - Earnings per Share (Tables)
(http://auo.com/role/EarningsPerShareTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfEarningsPerShareAbstract (label)Abstractdurationauo:DisclosureOfEarningsPerShareAbstract
2 Schedule of basic earnings per share [text block]Concept (TextBlock)durationifrs-full:EarningsPerShareExplanatory
3 auo:ScheduleOfDilutedEarningsPerShareTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfDilutedEarningsPerShareTextBlock

Model Structure
Network
178 - Disclosure - Financial Instruments (Tables)
(http://auo.com/role/FinancialInstrumentsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinancialInstrumentAbstract (label)Abstractdurationauo:DisclosureOfFinancialInstrumentAbstract
2 auo:ScheduleOfCarryingAmountAndFairValueOfFinancialInstrumentsTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfCarryingAmountAndFairValueOfFinancialInstrumentsTextBlock
3 auo:ScheduleOfFairValueMeasurementOfAssetsAndLiabilitiesOnRecurringBasisTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfFairValueMeasurementOfAssetsAndLiabilitiesOnRecurringBasisTextBlock
4 auo:ScheduleOfChangesInLevel3FairValueMeasurementTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfChangesInLevel3FairValueMeasurementTextBlock

Model Structure
Network
179 - Disclosure - Financial Risk Management (Tables)
(http://auo.com/role/FinancialRiskManagementTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinancialRiskManagementExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfFinancialRiskManagementExplanatoryAbstract
2 Disclosure Of Financial Risk Management Explanatory [Table]Tabledurationauo:DisclosureOfFinancialRiskManagementExplanatoryTable
3 Types of risks [axis]Axisdurationifrs-full:TypesOfRisksAxis
4 Risks [member]Memberdurationifrs-full:TypesOfRisksMember
5 Currency risk [member]Memberdurationifrs-full:CurrencyRiskMember
6 auo:DisclosureOfFinancialsRiskManagementExplanatoryLineItems (verboseLabel)LineItemsdurationauo:DisclosureOfFinancialsRiskManagementExplanatoryLineItems
7 auo:ScheduleOfMaturityAnalysisForFinancialLiabilitiesTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfMaturityAnalysisForFinancialLiabilitiesTextBlock
8 auo:DisclosureOfDetailedInformationAboutExposureToForeignCurrencyRiskTextBlock (terseLabel)Concept (TextBlock)durationauo:DisclosureOfDetailedInformationAboutExposureToForeignCurrencyRiskTextBlock
9 auo:ScheduleOfSensitivityAnalysisOfCurrencyRiskTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfSensitivityAnalysisOfCurrencyRiskTextBlock

Model Structure
Network
180 - Disclosure - Capital Management (Tables)
(http://auo.com/role/CapitalManagementTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of objectives, policies and processes for managing capital [abstract]Abstractdurationifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract
2 auo:ScheduleOfInformationAboutCapitalManagementTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfInformationAboutCapitalManagementTextBlock

Model Structure
Network
181 - Disclosure - Related-party Transactions (Tables)
(http://auo.com/role/RelatedpartyTransactionsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRelatedPartyTransactionsAbstract (label)Abstractdurationauo:DisclosureOfRelatedPartyTransactionsAbstract
2 Schedule of key management personnel's compensation [text block]Concept (TextBlock)durationifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory
3 Schedule of sales transactions between related parties [text block]Concept (TextBlock)durationifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory
4 auo:ScheduleOfPurchasesTransactionsBetweenRelatedPartiesTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfPurchasesTransactionsBetweenRelatedPartiesTextBlock
5 auo:ScheduleOfAcquisitionPropertyPlantAndEquipmentInRelatedPartyTransactionsTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfAcquisitionPropertyPlantAndEquipmentInRelatedPartyTransactionsTextBlock
6 auo:ScheduleOfDisposalOfPropertyPlantAndEquipmentInRelatedPartyTransactionsTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfDisposalOfPropertyPlantAndEquipmentInRelatedPartyTransactionsTextBlock
7 auo:ScheduleOfOtherRelatedPartyTransactionsTextBlock (verboseLabel)Concept (TextBlock)durationauo:ScheduleOfOtherRelatedPartyTransactionsTextBlock

Model Structure
Network
182 - Disclosure - Pledged Assets (Tables)
(http://auo.com/role/PledgedAssetsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfPledgedAssetsAbstract (label)Abstractdurationauo:DisclosureOfPledgedAssetsAbstract
2 auo:ScheduleOfAssetsPledgedAsCollateralTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfAssetsPledgedAsCollateralTextBlock

Model Structure
Network
183 - Disclosure - Contingent Liabilities and Commitments (Tables)
(http://auo.com/role/ContingentLiabilitiesAndCommitmentsTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfContingentLiabilitiesAndCommitmentsAbstract (label)Abstractdurationauo:DisclosureOfContingentLiabilitiesAndCommitmentsAbstract
2 auo:ScheduleOfOutstandingLettersOfCreditTableTextBlock (terseLabel)Concept (TextBlock)durationauo:ScheduleOfOutstandingLettersOfCreditTableTextBlock

Model Structure
Network
184 - Disclosure - Segment, Geographic and Revenue Information (Tables)
(http://auo.com/role/SegmentGeographicAndRevenueInformationTables)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSegmentGeographicAndRevenueInformationAbstract (label)Abstractdurationauo:DisclosureOfSegmentGeographicAndRevenueInformationAbstract
2 Schedule of segment reporting information [text block]Concept (TextBlock)durationifrs-full:DisclosureOfOperatingSegmentsExplanatory
3 Schedule of revenue and non current assets by geographical areas [text block]Concept (TextBlock)durationifrs-full:DisclosureOfGeographicalAreasExplanatory
4 Schedule of revenue by major customers [text block]Concept (TextBlock)durationifrs-full:DisclosureOfSegmentsMajorCustomersExplanatory
5 Schedule of revenue by products and services [text block]Concept (TextBlock)durationifrs-full:DisclosureOfProductsAndServicesExplanatory

Model Structure
Network
185 - Disclosure - Summary of Significant Accounting Policies (Details)
(http://auo.com/role/SummaryOfSignificantAccountingPoliciesDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSignificantAccountingPoliciesAbstract (label)Abstractdurationauo:DisclosureOfSignificantAccountingPoliciesAbstract
2 Disclosure of significant accounting policies [Table]Tabledurationauo:DisclosureOfSignificantAccountingPoliciesTable
3 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
4 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
5 Konly [Member]Memberdurationauo:KonlyMember
6 ACTW [Member]Memberdurationauo:ActwMember
7 SDMC [Member]Memberdurationauo:SdmcMember
8 AUXM [Member]Memberdurationauo:AuxmMember
9 AUSH [Member]Memberdurationauo:AushMember
10 AUO [Member]Memberdurationauo:AuoMember
11 AUO, Konly and Ronly [Member]Memberdurationauo:AuoKonlyAndRonlyMember
12 AULB [Member]Memberdurationauo:AulbMember
13 AULB and DPTW [Member]Memberdurationauo:AulbAndDptwMember
14 AUSG [Member]Memberdurationauo:AusgMember
15 DPTW [Member]Memberdurationauo:DptwMember
16 FHVI [Member]Memberdurationauo:FhviMember
17 FRVI [Member]Memberdurationauo:FrviMember
18 FFMI [Member]Memberdurationauo:FfmiMember
19 FWSA and FTMI [Member]Memberdurationauo:FwsaAndFtmiMember
20 PMSA [Member]Memberdurationauo:PmsaMember
21 FLMI [Member]Memberdurationauo:FlmiMember
22 DPLB [Member]Memberdurationauo:DplbMember
23 DPHK [Member]Memberdurationauo:DphkMember
24 BVLB [Member]Memberdurationauo:BvlbMember
25 FTMI [Member]Memberdurationauo:FtmiMember
26 Subsidiaries [axis]Axisdurationifrs-full:SignificantInvestmentsInSubsidiariesAxis
27 Entity's total for subsidiaries [member]Memberdurationifrs-full:EntitysTotalForSubsidiariesMember
28 Space Money Inc. (SMI) [Member]Memberdurationauo:SpaceMoneyIncMember
29 Darwin Precisions (L) Corp. (DPLB) [Member]Memberdurationauo:DarwinPrecisionsCorporationMember
30 Fargen Power Corporation (FGPC) [Member]Memberdurationauo:FargenPowerCorporationMember
31 LiGen Power Corporation (LGPC) [Member]Memberdurationauo:LigenPowerCorporationMember
32 TronGen Power Corporation (TGPC) [Member]Memberdurationauo:TrongenPowerCorporationMember
33 AUO Crystal (Malaysia) Sdn. Bhd. (ACMK) [Member]Memberdurationauo:AuoCrystalMalaysiaSdnBhdMember
34 M.Setek Co., Ltd. (M.Setek) [Member]Memberdurationauo:MsetekCoLtdMember
35 AU Optronics Corporation America (AUUS) [Member]Memberdurationauo:AuOptronicsCorporationAmericaMember
36 AU Optronics Corporation Japan (AUJP) [Member]Memberdurationauo:AuOptronicsCorporationJapanMember
37 AU Optronics Europe B.V. (AUNL) [Member]Memberdurationauo:AuOptronicsEuropeBvMember
38 AU Optronics Korea Ltd. (AUKR) [Member]Memberdurationauo:AuOptronicsKoreaLtdMember
39 AU Optronics (Czech) s.r.o. (AUCZ) [Member]Memberdurationauo:AuOptronicsCzechSroMember
40 AU Optronics (Shanghai) Co., Ltd. (AUSH) [Member]Memberdurationauo:AuOptronicsShanghaiCoLtdMember
41 AU Optronics (Xiamen) Corp. (AUXM) [Member]Memberdurationauo:AuOptronicsXiamenCorpMember
42 AU Optronics (Suzhou) Corp., Ltd. (AUSZ) [Member]Memberdurationauo:AuOptronicsSuzhouCorpLtdMember
43 AU Optronics Manufacturing (Shanghai) Corp. (AUSJ) [Member]Memberdurationauo:AuOptronicsManufacturingShanghaiCorpMember
44 AFPD Pte., Ltd. (AUST) [Member]Memberdurationauo:AfpdPteLtdMember
45 AU Optronics (Kunshan) Co., Ltd. (AUKS) [Member]Memberdurationauo:AuOptronicsKunshanCoLtdMember
46 a.u. Vista Inc. (AUVI) [Member]Memberdurationauo:AuVistaIncMember
47 BriView (L) Corp. (BVLB) [Member]Memberdurationauo:BriviewXiamenCorpMember
48 Forthouse Electronics (Suzhou) Co., Ltd. (FHWJ) [Member]Memberdurationauo:ForthouseElectronicsSuzhouCoLtdMember
49 Fortech Electronics (Suzhou) Co., Ltd. (FTWJ) [Member]Memberdurationauo:FortechElectronicsSuzhouCoLtdMember
50 Fortech Optronics (Xiamen) Co., Ltd. (FTXM) [Member]Memberdurationauo:FortechOptronicsXiamenCoLtdMember
51 Suzhou Forplax Optronics Co., Ltd. (FPWJ) [Member]Memberdurationauo:SuzhouForplaxOptronicsCoLtdMember
52 Fortech Electronics (Kunshan) Co., Ltd. (FTKS) [Member]Memberdurationauo:FortechElectronicsKunshanCoLtdMember
53 Full Luck (Wujiang) Precisions Co., Ltd. (FLWJ) [Member]Memberdurationauo:FullLuckWujiangPrecisionsCoLtdMember
54 Darwin Precisions (Slovakia) s.r.o. (DPSK) [Member]Memberdurationauo:DarwinPrecisionsSlovakiaSroMember
55 Darwin Precisions (Suzhou) Corp. (DPSZ) [Member]Memberdurationauo:DarwinPrecisionsSuzhouCorpMember
56 Darwin Precisions (Xiamen) Corp. (DPXM) [Member]Memberdurationauo:DarwinPrecisionsXiamenCorpMember
57 Darwin Precisions (Chengdu) Corp. (DPCD) [Member]Memberdurationauo:DarwinPrecisionsChengduCorpMember
58 BriView (Hefei) Co., Ltd. (BVHF) [Member]Memberdurationauo:BriviewHefeiCoLtdMember
59 auo:AuoEnergyTianjinCorpMember (verboseLabel)Memberdurationauo:AuoEnergyTianjinCorpMember
60 AUO Green Energy America Corp. (AEUS) [Member]Memberdurationauo:AuoGreenEnergyAmericaCorpMember
61 Sanda Materials Corporation (SDMC) [Member]Memberdurationauo:SandaMaterialsCorporationMember
62 AUO Crystal Corp. (ACTW) [Member]Memberdurationauo:AuoCrystalCorpMember
63 Darwin Precisions Corporation (DPTW) [Member]Memberdurationauo:DarwinPrecisionsMember
64 Forhouse International Holding Ltd. (FHVI) [Member]Memberdurationauo:ForhouseInternationalMember
65 Prime Forward International Ltd. (PMSA) [Member]Memberdurationauo:PrimeForwardMember
66 Full Luck Precisions Co., Ltd. (FLMI) [Member]Memberdurationauo:FullLuckPrecisionMember
67 Forefront Corporation (FFMI) [Member]Memberdurationauo:ForefrontMember
68 U-Fresh Technology Inc. (UTI) [Member]Memberdurationauo:UfreshTechnologyIncUtiMember
69 ChampionGen Power Corporation (CGPC) [Member]Memberdurationauo:ChampiongenPowerCorporationCgpcMember
70 BriView (Xiamen) Corp. (BVXM) [Member]Memberdurationauo:BriviewLCorpBvlbMember
71 Darwin Precisions (Hong Kong) Limited (DPHK) [Member]Memberdurationauo:DarwinPrecisionsHongKongLimitedDphkMember
72 AU Optronics (Slovakia) s.r.o. (AUSK) [Member]Memberdurationauo:AuOptronicsSlovakiaSroMember
73 AUO Care Management (Suzhou) Co., Ltd. (A-Care) [Member]Memberdurationauo:AuoCareManagementMember
74 AU Optronics (L) Corp. (AULB) [Member]Memberdurationauo:AuOptronicsLCorpAulbMember
75 Konly Venture Corp. (Konly) [Member]Memberdurationauo:KonlyVentureCorpKonlyMember
76 Ronly Venture Corp. (Ronly) [Member]Memberdurationauo:RonlyVentureCorpRonlyMember
77 AUO Green Energy Europe B.V. (AENL) [Member]Memberdurationauo:AuoGreenEnergyEuropeBvAenlMember
78 Force International Holding Ltd. (FRVI) [Member]Memberdurationauo:ForceInternationalHoldingLtdFrviMember
79 Fortech International Corp. (FTMI) [Member]Memberdurationauo:FortechInternationalCorpFtmiMember
80 Forward Optronics International Corp. (FWSA) [Member]Memberdurationauo:ForwardOptronicsInternationalCorpFwsaMember
81 AU Optronics Singapore Pte. Ltd. (AUSG) [Member]Memberdurationauo:AuOptronicsSingaporePteLtdAusgMember
82 Geographical areas [axis]Axisdurationifrs-full:GeographicalAreasAxis
83 Geographical areas [member]Memberdurationifrs-full:GeographicalAreasMember
84 auo:MalaysiaMember (label)Memberdurationauo:MalaysiaMember
85 Taiwan ROC [Member]Memberdurationauo:TaiwanRocMember
86 auo:JapanMember (label)Memberdurationauo:JapanMember
87 United States [Member]Memberdurationauo:UnitedStatesMember
88 Netherlands [Member]Memberdurationauo:NetherlandsMember
89 South Korea [Member]Memberdurationauo:SouthKoreaMember
90 auo:SingaporeMember (label)Memberdurationauo:SingaporeMember
91 auo:CzechRepublicMember (label)Memberdurationauo:CzechRepublicMember
92 auo:PrcMember (label)Memberdurationauo:PrcMember
93 Slovakia Republic [Member]Memberdurationauo:SlovakiaRepublicMember
94 BVI [Member]Memberdurationauo:BviMember
95 Mauritius [Member]Memberdurationauo:MauritiusMember
96 Samoa [Member]Memberdurationauo:SamoaMember
97 Hong Kong [Member]Memberdurationauo:HongKongMember
98 auo:DisclosureOfSignificantAccountingPoliciesLineItems (label)LineItemsdurationauo:DisclosureOfSignificantAccountingPoliciesLineItems
99 Proportion of ownership interest in subsidiaryConcept (Percent)durationifrs-full:ProportionOfOwnershipInterestInSubsidiary

Model Structure
Network
186 - Disclosure - Summary of Significant Accounting Policies (Details Textual)
(http://auo.com/role/SummaryOfSignificantAccountingPoliciesDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSignificantAccountingPoliciesAbstract (label)Abstractdurationauo:DisclosureOfSignificantAccountingPoliciesAbstract
2 Disclosure of significant accounting policies [Table]Tabledurationauo:DisclosureOfSignificantAccountingPoliciesTable
3 Business combinations [axis]Axisdurationifrs-full:BusinessCombinationsAxis
4 Entity's total for business combinations [member]Memberdurationifrs-full:EntitysTotalForBusinessCombinationsMember
5 Range [Axis]Axisdurationifrs-full:RangeAxis
6 Ranges [member]Memberdurationifrs-full:RangesMember
7 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
8 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
9 Classes of property, plant and equipment [axis]Axisdurationifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
10 Property, Plant and Equipment [Member]Memberdurationifrs-full:PropertyPlantAndEquipmentMember
11 Buildings [member]Memberdurationifrs-full:BuildingsMember
12 ifrs-full:MachineryMember (label)Memberdurationifrs-full:MachineryMember
13 Other property, plant and equipment [member]Memberdurationifrs-full:OtherPropertyPlantAndEquipmentMember
14 Components of equity [axis]Axisdurationifrs-full:ComponentsOfEquityAxis
15 Equity [Member]Memberdurationifrs-full:EquityMember
16 Additional corporate income tax rate on undistributed earnings [Member]Memberdurationauo:AdditionalCorporateIncomeTaxRateOnUndistributedEarningsMember
17 Geographical areas [axis]Axisdurationifrs-full:GeographicalAreasAxis
18 Geographical areas [member]Memberdurationifrs-full:GeographicalAreasMember
19 ROC [Member]Memberdurationauo:RocMember
20 auo:DisclosureOfSignificantAccountingPoliciesLineItems (label)LineItemsdurationauo:DisclosureOfSignificantAccountingPoliciesLineItems
21 Useful lives or depreciation rates, property, plant and equipmentConcept (String)durationifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
22 Useful lives or amortisation rates, intangible assets other than goodwillConcept (String)durationifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
23 ifrs-full:ApplicableTaxRate (label)Concept (Percent)durationifrs-full:ApplicableTaxRate

Model Structure
Network
187 - Disclosure - Cash and Cash Equivalents (Details)
(http://auo.com/role/CashAndCashEquivalentsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfCashAndCashEquivalentsAbstract (label)Abstractdurationauo:DisclosureOfCashAndCashEquivalentsAbstract
2 Cash on hand, demand deposits and checking accountsConcept (Monetary)instantdebitifrs-full:Cash
3 Time depositsConcept (Monetary)instantdebitifrs-full:ShorttermDepositsClassifiedAsCashEquivalents
4 Government bonds with reverse repurchase agreementsConcept (Monetary)instantdebitifrs-full:ShorttermInvestmentsClassifiedAsCashEquivalents
5 ifrs-full:CashAndCashEquivalents (label)Concept (Monetary)instantdebitifrs-full:CashAndCashEquivalents

Model Structure
Network
188 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details)
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstrumentsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDerivativeFinancialInstrumentsAbstract (label)Abstractdurationauo:DisclosureOfDerivativeFinancialInstrumentsAbstract
2 Financial assets measured at fair value through profit or loss - current:Abstractdurationifrs-full:CurrentFinancialAssetsAtFairValueThroughProfitOrLossAbstract
3 Foreign currency forward contractsConcept (Monetary)instantdebitifrs-full:CurrentFinancialAssetsAtFairValueThroughProfitOrLoss
4 Financial liabilities measured at fair value through profit or loss - current:Abstractdurationifrs-full:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract
5 Foreign currency forward contractsConcept (Monetary)instantcreditifrs-full:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss
6 Hedging derivative financial liabilities - current:Abstractdurationifrs-full:MiscellaneousCurrentLiabilitiesAbstract
7 Interest rate swap contractsConcept (Monetary)instantcreditifrs-full:CurrentDerivativeFinancialLiabilities
8 Hedging derivative financial liabilities - noncurrent:Abstractdurationifrs-full:MiscellaneousNoncurrentLiabilitiesAbstract

Model Structure
Network
189 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details 1)
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstrumentsDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDerivativeFinancialInstrumentsAbstract (label)Abstractdurationauo:DisclosureOfDerivativeFinancialInstrumentsAbstract
2 auo:CurrentFinancialAssetsAtFairValueThroughProfitOrLossTable (label)Tabledurationauo:CurrentFinancialAssetsAtFairValueThroughProfitOrLossTable
3 Maturity [axis]Axisdurationifrs-full:MaturityAxis
4 Aggregated time bands [member]Memberdurationifrs-full:AggregatedTimeBandsMember
5 Maturity Date Jan- Feb. 2017 [Member]Memberdurationauo:MaturityDateJanFeb2017Member
6 Maturity Date Jan- Mar 2017 [Member]Memberdurationauo:MaturityDateJanMar2017Member
7 Maturity Date Mar 2017 [Member]Memberdurationauo:MaturityDateMar2017Member
8 Maturity Date Jan- Jun 2017 [Member]Memberdurationauo:MaturityDateJanJun2017Member
9 Maturity Date Jan- Apr 2017 [Member]Memberdurationauo:MaturityDateJanApr2017Member
10 Maturity Date Jan 2017 [Member]Memberdurationauo:MaturityDateJan2017Member
11 Maturity Date Jan- Jul 2017 [Member]Memberdurationauo:MaturityDateJanJul2017Member
12 Maturity Date Jan - Feb 2018 [Member]Memberdurationauo:MaturityDateJanFeb2018Member
13 Maturity Date Jan- Mar 2018 [Member]Memberdurationauo:MaturityDateJanMar2018Member
14 Maturity Date Jan- Jun 2018 [Member]Memberdurationauo:MaturityDateJanJun2018Member
15 Maturity Date Jan- Apr 2018 [Member]Memberdurationauo:MaturityDateJanApr2018Member
16 Maturity Date Jan 2018 [Member]Memberdurationauo:MaturityDateJan2018Member
17 Contract Item [Axis]Axisdurationauo:ContractItemAxis
18 Contract Item [Domain]Memberdurationauo:ContractItemDomain
19 Sell USD Buy NTD [Member]Memberdurationauo:SellUsdBuyNtdMember
20 Sell USD Buy JPY [Member]Memberdurationauo:SellUsdBuyJpyMember
21 Sell NTD Buy JPY [Member]Memberdurationauo:SellNtdBuyJpyMember
22 Sell USD Buy CNY [Member]Memberdurationauo:SellUsdBuyCnyMember
23 Sell EUR Buy JPY [Member]Memberdurationauo:SellEurBuyJpyMember
24 Sell EUR Buy CZK [Member]Memberdurationauo:SellEurBuyCzkMember
25 Sell EUR Buy USD [Member]Memberdurationauo:SellEurBuyUsdMember
26 Sell USD Buy MYR [Member]Memberdurationauo:SellUsdBuyMyrMember
27 Sell JPY Buy NTD [Member]Memberdurationauo:SellJpyBuyNtdMember
28 Sell CNY Buy USD [Member]Memberdurationauo:SellCnyBuyUsdMember
29 Sell EUR Buy NTD [Member]Memberdurationauo:SellEurBuyNtdMember
30 Sell CNY Buy JPY [Member]Memberdurationauo:SellCnyBuyJpyMember
31 Sell USD Buy SGD [Member]Memberdurationauo:SellUsdBuySgdMember
32 auo:CurrentFinancialAssetsAtFairValueThroughProfitOrLossLineItems (label)LineItemsdurationauo:CurrentFinancialAssetsAtFairValueThroughProfitOrLossLineItems
33 Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchangedConcept (Monetary)instantcreditifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged

Model Structure
Network
190 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details 2)
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstrumentsDetails2)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDerivativeFinancialInstrumentsAbstract (label)Abstractdurationauo:DisclosureOfDerivativeFinancialInstrumentsAbstract
2 Net Gains Losses Of Foreign Currency Forward Contracts [Table]Tabledurationauo:NetGainsLossesOfForeignCurrencyForwardContractsTable
3 Classes of financial assets [axis]Axisdurationifrs-full:ClassesOfFinancialAssetsAxis
4 Financial assets, class [member]Memberdurationifrs-full:FinancialAssetsMember
5 Forward contract [member]Memberdurationifrs-full:ForwardContractMember
6 Net Gains Losses Of Foreign Currency Forward Contracts [Line Items]LineItemsdurationauo:NetGainsLossesOfForeignCurrencyForwardContractsLineItems
7 Net gains (losses) of foreign currency forward contracts were as follows:Abstractdurationifrs-full:ChangeInValueOfForwardElementsOfForwardContractsAbstract
8 auo:UnrealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (terseLabel)Concept (Monetary)durationcreditauo:UnrealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss
9 auo:RealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (terseLabel)Concept (Monetary)durationcreditauo:RealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss
10 Gains (losses) on valuation of financial assets (liabilities) measured at fair value through profit or loss, netConcept (Monetary)durationcreditifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss

Model Structure
Network
191 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details 3)
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstrumentsDetails3)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDerivativeFinancialInstrumentsAbstract (label)Abstractdurationauo:DisclosureOfDerivativeFinancialInstrumentsAbstract
2 Designated as Cash Flow Hedges and Hedging Derivative Financial Instruments [Table]Tabledurationauo:DesignatedAsCashFlowHedgesAndHedgingDerivativeFinancialInstrumentsTable
3 Classes of financial assets [axis]Axisdurationifrs-full:ClassesOfFinancialAssetsAxis
4 Financial assets, class [member]Memberdurationifrs-full:FinancialAssetsMember
5 Interest rate swap contract [member]Memberdurationifrs-full:InterestRateSwapContractMember
6 Designated as Cash Flow Hedges and Hedging Derivative Financial Instruments [Line Items]LineItemsdurationauo:DesignatedAsCashFlowHedgesAndHedgingDerivativeFinancialInstrumentsLineItems
7 Fair value of hedging instrumentConcept (Monetary)instantifrs-full:FinancialInstrumentsDesignatedAsHedgingInstrumentsAtFairValue
8 Expected period of cash flowsConcept (String)durationifrs-full:DescriptionOfPeriodsWhenCashFlowsExpectedToOccur
9 auo:DescriptionOfPeriodsWhenCashflowsExpectedToRecognized (verboseLabel)Concept (String)durationauo:DescriptionOfPeriodsWhenCashflowsExpectedToRecognized

Model Structure
Network
192 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details Textual)
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstrumentsDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDerivativeFinancialInstrumentsAbstract (label)Abstractdurationauo:DisclosureOfDerivativeFinancialInstrumentsAbstract
2 Derivative Financial Instruments and Hedging Instruments [Table]Tabledurationauo:DerivativeFinancialInstrumentsAndHedgingInstrumentsTable
3 Classes of financial assets [axis]Axisdurationifrs-full:ClassesOfFinancialAssetsAxis
4 Financial assets, class [member]Memberdurationifrs-full:FinancialAssetsMember
5 Interest rate swap contract [member]Memberdurationifrs-full:InterestRateSwapContractMember
6 Derivative Financial Instruments and Hedging Instruments [Line Items]LineItemsdurationauo:DerivativeFinancialInstrumentsAndHedgingInstrumentsLineItems
7 Notional amountConcept (Monetary)instantifrs-full:NotionalAmount
8 Gains (losses) on change in fair value of derivativesConcept (Monetary)durationcreditifrs-full:GainsLossesOnChangeInFairValueOfDerivatives

Model Structure
Network
193 - Disclosure - Available-for-sale Financial Assets–noncurrent (Details)
(http://auo.com/role/AvailableforsaleFinancialAssetsnoncurrentDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfAvailableforsaleFinancialAssetsAbstract (label)Abstractdurationauo:DisclosureOfAvailableforsaleFinancialAssetsAbstract
2 Equity securitiesConcept (Monetary)instantdebitifrs-full:NoncurrentFinancialAssetsAvailableforsale

Model Structure
Network
194 - Disclosure - Available-for-sale Financial Assets–noncurrent (Details Textual)
(http://auo.com/role/AvailableforsaleFinancialAssetsnoncurrentDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfAvailableforsaleFinancialAssetsAbstract (label)Abstractdurationauo:DisclosureOfAvailableforsaleFinancialAssetsAbstract
2 Available-for-sale Financial Assets-noncurrent [Table]Tabledurationauo:AvailableforsaleFinancialAssetsnoncurrentTable
3 Categories of financial assets [axis]Axisdurationifrs-full:CategoriesOfFinancialAssetsAxis
4 Financial assets, category [member]Memberdurationifrs-full:FinancialAssetsCategoryMember
5 ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)Memberdurationifrs-full:FinancialAssetsAvailableforsaleCategoryMember
6 auo:DisclosureOfAvailableforsaleFinancialAssetsLineItems (label)LineItemsdurationauo:DisclosureOfAvailableforsaleFinancialAssetsLineItems
7 ifrs-full:ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets (label)Concept (Monetary)durationdebitifrs-full:ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets
8 auo:GainsLossesOnDisposalsOfAvailableforsaleFinancialAssets (verboseLabel)Concept (Monetary)durationcreditauo:GainsLossesOnDisposalsOfAvailableforsaleFinancialAssets
9 ifrs-full:ImpairmentLoss (label)Concept (Monetary)durationdebitifrs-full:ImpairmentLoss
10 auo:AmountOfSensitivityOfAvailableForSaleSecuritiesToChangesInEquityPrice (label)Concept (Monetary)durationdebitauo:AmountOfSensitivityOfAvailableForSaleSecuritiesToChangesInEquityPrice
11 auo:AppreciationOrDepreciationRateOnEquityPrice (label)Concept (Percent)durationauo:AppreciationOrDepreciationRateOnEquityPrice

Model Structure
Network
195 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfNotesAndAccountsReceivableAbstract (label)Abstractdurationauo:DisclosureOfNotesAndAccountsReceivableAbstract
2 auo:TradeAndOtherReceivablesCurrentGross (verboseLabel)Concept (Monetary)instantdebitauo:TradeAndOtherReceivablesCurrentGross
3 ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (negatedLabel)Concept (Monetary)instantcreditifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
4 auo:AllowanceForSalesReturnsAndDiscounts (negatedLabel)Concept (Monetary)instantcreditauo:AllowanceForSalesReturnsAndDiscounts
5 auo:NotesAndAccountsReceivableNetIncludingRelatedParties (totalLabel)Concept (Monetary)instantdebitauo:NotesAndAccountsReceivableNetIncludingRelatedParties
6 Accounts receivable, netConcept (Monetary)instantdebitifrs-full:TradeAndOtherCurrentReceivables
7 ifrs-full:AmountsReceivableRelatedPartyTransactions (verboseLabel)Concept (Monetary)instantdebitifrs-full:AmountsReceivableRelatedPartyTransactions

Model Structure
Network
196 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details 1)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfNotesAndAccountsReceivableAbstract (label)Abstractdurationauo:DisclosureOfNotesAndAccountsReceivableAbstract
2 Disclosure of Notes and Accounts Receivable [Table]Tabledurationauo:DisclosureOfNotesAndAccountsReceivableTable
3 Past due status [axis]Axisdurationifrs-full:PastDueStatusAxis
4 Past due status [member]Memberdurationifrs-full:PastDueStatusMember
5 Not later than two months [Member]Memberdurationauo:NotLaterThanTwoMonthsMember
6 Later than two months and not later than six months [member]Memberdurationauo:LaterThanTwoMonthsAndNotLaterThanSixMonthsMember
7 Later than six months [member]Memberdurationauo:LaterThanSixMonthMember
8 Impairment of financial assets [axis]Axisdurationifrs-full:ImpairmentOfFinancialAssetsAxis
9 Entity's total for impairment of financial assets [member]Memberdurationifrs-full:EntitysTotalForImpairmentOfFinancialAssetsMember
10 Financial assets past due but not impaired [member]Memberdurationifrs-full:FinancialAssetsPastDueButNotImpairedMember
11 auo:DisclosureOfNotesAndAccountsReceivableLineItems (label)LineItemsdurationauo:DisclosureOfNotesAndAccountsReceivableLineItems
12 auo:NotesAndAccountsReceivableNetIncludingRelatedParties (terseLabel)Concept (Monetary)instantdebitauo:NotesAndAccountsReceivableNetIncludingRelatedParties

Model Structure
Network
197 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details 2)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesDetails2)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfNotesAndAccountsReceivableAbstract (label)Abstractdurationauo:DisclosureOfNotesAndAccountsReceivableAbstract
2 Disclosure of Notes and Accounts Receivable [Table]Tabledurationauo:DisclosureOfNotesAndAccountsReceivableTable
3 Method of assessment of expected credit losses [axis]Axisdurationifrs-full:MethodOfAssessmentOfExpectedCreditLossesAxis
4 Method of assessment of expected credit losses [member]Memberdurationifrs-full:MethodOfAssessmentOfExpectedCreditLossesMember
5 Expected credit losses individually assessed [member]Memberdurationifrs-full:ExpectedCreditLossesIndividuallyAssessedMember
6 Expected credit losses collectively assessed [member]Memberdurationifrs-full:ExpectedCreditLossesCollectivelyAssessedMember
7 auo:DisclosureOfNotesAndAccountsReceivableLineItems (label)LineItemsdurationauo:DisclosureOfNotesAndAccountsReceivableLineItems
8 ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (periodStartLabel)Concept (Monetary)instantcreditifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
9 Provisions (reversals) charged to (against) expenseConcept (Monetary)durationifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
10 Write-offsConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughAdjustmentsArisingFromPassageOfTimeAllowanceAccountForCreditLossesOfFinancialAssets
11 Effect of changes in foreign currency exchange ratesConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets
12 Balance at end of the yearConcept (Monetary)instantcreditifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets

Model Structure
Network
198 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details 3)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesDetails3)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfNotesAndAccountsReceivableAbstract (label)Abstractdurationauo:DisclosureOfNotesAndAccountsReceivableAbstract
2 Disclosure of Notes and Accounts Receivable [Table]Tabledurationauo:DisclosureOfNotesAndAccountsReceivableTable
3 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
4 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
5 Chinatrust Commercial Bank [member]Memberdurationauo:ChinatrustCommercialBankMember
6 Taishin Bank [member]Memberdurationauo:TaishinBankMember
7 Bank of Taiwan [member]Memberdurationauo:BankOfTaiwanMember
8 Taipei Fubon Bank [member]Memberdurationauo:TaipeiFubonBankMember
9 E. Sun Bank [member]Memberdurationauo:ESunBankMember
10 DBS Bank [member]Memberdurationauo:DbsBankMember
11 Taishin Bank [member]Memberdurationauo:TaishinMember
12 Continuing involvement in derecognised financial assets by type of transfer [axis]Axisdurationifrs-full:ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis
13 Types of transfer [member]Memberdurationifrs-full:TypesOfTransferMember
14 Factoring of receivables [member]Memberdurationifrs-full:FactoringOfReceivablesMember
15 auo:DisclosureOfNotesAndAccountsReceivableLineItems (label)LineItemsdurationauo:DisclosureOfNotesAndAccountsReceivableLineItems
16 Factoring limitConcept (Monetary)instantifrs-full:MaximumExposureToLossFromContinuingInvolvement
17 auo:AdvancePaidForTransferOfAssets (terseLabel)Concept (Monetary)instantdebitauo:AdvancePaidForTransferOfAssets
18 Amount sold and derecognizedConcept (Monetary)durationdebitifrs-full:ProceedsFromTransferActivity
19 Principle termsConcept (String)durationifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets

Model Structure
Network
199 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details Textual)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfNotesAndAccountsReceivableAbstract (label)Abstractdurationauo:DisclosureOfNotesAndAccountsReceivableAbstract
2 Disclosure of Accounts Receivable [Table]Tabledurationauo:DisclosureOfAccountsReceivableTable
3 Range [Axis]Axisdurationifrs-full:RangeAxis
4 Ranges [member]Memberdurationifrs-full:RangesMember
5 Bottom of range [member]Memberdurationifrs-full:BottomOfRangeMember
6 Top of range [member]Memberdurationifrs-full:TopOfRangeMember
7 Classes of financial instruments [axis]Axisdurationifrs-full:ClassesOfFinancialInstrumentsAxis
8 Financial instruments, class [member]Memberdurationifrs-full:ClassesOfFinancialInstrumentsMember
9 Trade receivables [member]Memberdurationifrs-full:TradeReceivablesMember
10 auo:DisclosureOfAccountsReceivableLineItems (label)LineItemsdurationauo:DisclosureOfAccountsReceivableLineItems
11 auo:PaymentTermsGrantedToCustomers (label)Concept (Duration)durationauo:PaymentTermsGrantedToCustomers
12 ifrs-full:OtherCurrentFinancialAssets (label)Concept (Monetary)instantdebitifrs-full:OtherCurrentFinancialAssets

Model Structure
Network
200 - Disclosure - Inventories (Details)
(http://auo.com/role/InventoriesDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfInventoriesAbstract (label)Abstractdurationauo:DisclosureOfInventoriesAbstract
2 Finished goodsConcept (Monetary)instantdebitifrs-full:CurrentInventoriesHeldForSale
3 Work-in-progressConcept (Monetary)instantdebitifrs-full:WorkInProgress
4 Raw materialsConcept (Monetary)instantdebitifrs-full:CurrentMaterialsAndSuppliesToBeConsumedInProductionProcessOrRenderingServices
5 TotalConcept (Monetary)instantdebitifrs-full:Inventories

Model Structure
Network
201 - Disclosure - Inventories (Details Textual)
(http://auo.com/role/InventoriesDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfInventoriesAbstract (label)Abstractdurationauo:DisclosureOfInventoriesAbstract
2 auo:AmountOfInventoriesRecognisedAsCostOfSalesDuringPeriod (label)Concept (Monetary)durationdebitauo:AmountOfInventoriesRecognisedAsCostOfSalesDuringPeriod
3 Inventory write-downConcept (Monetary)durationifrs-full:InventoryWritedown2011

Model Structure
Network
202 - Disclosure - Noncurrent Assets Held for Sale (Details)
(http://auo.com/role/NoncurrentAssetsHeldForSaleDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfNoncurrentAssetsHeldForSaleAbstract (label)Abstractdurationauo:DisclosureOfNoncurrentAssetsHeldForSaleAbstract
2 Disclosure Of Noncurrent Assets Held For Sale [Table]Tabledurationauo:DisclosureOfNoncurrentAssetsHeldForSaleTable
3 Assets and liabilities classified as held for sale [axis]Axisdurationifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis
4 Assets and liabilities not classified as held for sale [member]Memberdurationifrs-full:AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember
5 Property, plant and equipment [member]Memberdurationauo:PropertyPlantAndEquipmentHeldForSaleMember
6 Land use right [Member]Memberdurationauo:LandUseRightMember
7 Disclosure Of Noncurrent Assets Held For Sale [Line Items]LineItemsdurationauo:DisclosureOfNoncurrentAssetsHeldForSaleLineItems
8 ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale (label)Concept (Monetary)instantdebitifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale

Model Structure
Network
203 - Disclosure - Noncurrent Assets Held for Sale (Details Textual)
(http://auo.com/role/NoncurrentAssetsHeldForSaleDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfNoncurrentAssetsHeldForSaleAbstract (label)Abstractdurationauo:DisclosureOfNoncurrentAssetsHeldForSaleAbstract
2 Disclosure Of Noncurrent Assets Held For Sale [Table]Tabledurationauo:DisclosureOfNoncurrentAssetsHeldForSaleTable
3 Subsidiaries [axis]Axisdurationifrs-full:SignificantInvestmentsInSubsidiariesAxis
4 Entity's total for subsidiaries [member]Memberdurationifrs-full:EntitysTotalForSubsidiariesMember
5 auo:FortechElectronicsKunshanCoLtdMember (label)Memberdurationauo:FortechElectronicsKunshanCoLtdMember
6 auo:BriviewHefeiCoLtdMember (label)Memberdurationauo:BriviewHefeiCoLtdMember
7 AUO Energy (Tianjin) Corp [Member]Memberdurationauo:AuoEnergyTianjinCorpMember
8 auo:MsetekCoLtdMember (label)Memberdurationauo:MsetekCoLtdMember
9 Classes of assets [axis]Axisdurationifrs-full:ClassesOfAssetsAxis
10 Assets [member]Memberdurationifrs-full:ClassesOfAssetsMember
11 Assets and liabilities classified as held for sale [axis]Axisdurationifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis
12 Assets and liabilities not classified as held for sale [member]Memberdurationifrs-full:AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember
13 Non-current assets held for sale [member]Memberdurationifrs-full:NoncurrentAssetsHeldForSaleMember
14 Disclosure Of Noncurrent Assets Held For Sale [Line Items]LineItemsdurationauo:DisclosureOfNoncurrentAssetsHeldForSaleLineItems
15 Proceeds from disposal of non-current assets or disposal groups classified as held for sale and discontinued operationsConcept (Monetary)durationdebitifrs-full:ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations
16 auo:NoncurrentAssetsHeldForSaleDisposalConsideration (label)Concept (Monetary)durationdebitauo:NoncurrentAssetsHeldForSaleDisposalConsideration
17 ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)Concept (Monetary)durationcreditifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment

Model Structure
Network
204 - Disclosure - Investments in equity-accounted Investees (Details)
(http://auo.com/role/InvestmentsInEquityaccountedInvesteesDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract (label)Abstractdurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract
2 AssociatesConcept (Monetary)instantdebitifrs-full:InvestmentsInAssociates
3 Joint venturesConcept (Monetary)instantdebitifrs-full:InvestmentsInJointVentures
4 TotalConcept (Monetary)instantdebitifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates

Model Structure
Network
205 - Disclosure - Investments in equity-accounted Investees (Details 1)
(http://auo.com/role/InvestmentsInEquityaccountedInvesteesDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract (label)Abstractdurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract
2 Disclosure of Investments in equity-accounted Investees [Table]Tabledurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesTable
3 Associates [axis]Axisdurationifrs-full:SignificantInvestmentsInAssociatesAxis
4 Entity's total for associates [member]Memberdurationifrs-full:EntitysTotalForAssociatesMember
5 Lextar Electronics Corp [member]Memberdurationauo:LextarElectronicsCorpMember
6 Raydium Semiconductor Corporation [member]Memberdurationauo:RaydiumSemiconductorCorporationMember
7 Daxin Materials Corp [member]Memberdurationauo:DaxinMaterialsCorpMember
8 Other associate [member]Memberdurationauo:OtherAssociateMember
9 Star River Energy Corporation [Member]Memberdurationauo:StarRiverEnergyCorporationMember
10 SSEC [member]Memberdurationauo:SsecMember
11 Disclosure of Investments in equity-accounted Investees [Line Items]LineItemsdurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesLineItems
12 auo:PrincipalActivitiesOfBusinessAssociate (label)Concept (String)durationauo:PrincipalActivitiesOfBusinessAssociate
13 Principal place of business of associateConcept (String)durationifrs-full:PrincipalPlaceOfBusinessOfAssociate
14 Proportion of ownership interest in associateConcept (Percent)durationifrs-full:ProportionOfOwnershipInterestInAssociate
15 ifrs-full:InvestmentsInAssociates (label)Concept (Monetary)instantdebitifrs-full:InvestmentsInAssociates

Model Structure
Network
206 - Disclosure - Investments in equity-accounted Investees (Details 2)
(http://auo.com/role/InvestmentsInEquityaccountedInvesteesDetails2)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract (label)Abstractdurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract
2 Disclosure of Investments in equity-accounted Investees [Table]Tabledurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesTable
3 Associates [axis]Axisdurationifrs-full:SignificantInvestmentsInAssociatesAxis
4 Entity's total for associates [member]Memberdurationifrs-full:EntitysTotalForAssociatesMember
5 Associates [member]Memberdurationifrs-full:AssociatesMember
6 Disclosure of Investments in equity-accounted Investees [Line Items]LineItemsdurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesLineItems
7 The Company’s share of profits of associatesConcept (Monetary)durationcreditifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
8 ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (verboseLabel)Concept (Monetary)durationcreditifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
9 ifrs-full:ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (terseLabel)Concept (Monetary)durationcreditifrs-full:ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod

Model Structure
Network
207 - Disclosure - Investments in equity-accounted Investees (Details 3)
(http://auo.com/role/InvestmentsInEquityaccountedInvesteesDetails3)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract (label)Abstractdurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract
2 Disclosure of Investments in equity-accounted Investees [Table]Tabledurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesTable
3 Joint ventures [axis]Axisdurationifrs-full:JointVenturesAxis
4 Entity's total for joint ventures [member]Memberdurationifrs-full:EntitysTotalForJointVenturesMember
5 Joint ventures [member]Memberdurationifrs-full:JointVenturesMember
6 Disclosure of Investments in equity-accounted Investees [Line Items]LineItemsdurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesLineItems
7 The Company’s share of profits (losses) of joint venturesConcept (Monetary)durationcreditifrs-full:ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod
8 The Company’s share of other comprehensive income (loss) of joint venturesConcept (Monetary)durationcreditifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
9 The Company’s share of total comprehensive income (loss) of joint venturesConcept (Monetary)durationcreditifrs-full:ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod

Model Structure
Network
208 - Disclosure - Investments in equity-accounted Investees (Details Textual)
(http://auo.com/role/InvestmentsInEquityaccountedInvesteesDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract (label)Abstractdurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesAbstract
2 Disclosure of Investments in equity-accounted Investees [Table]Tabledurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesTable
3 Subsidiaries [axis]Axisdurationifrs-full:SignificantInvestmentsInSubsidiariesAxis
4 Entity's total for subsidiaries [member]Memberdurationifrs-full:EntitysTotalForSubsidiariesMember
5 auo:SunpowerTechnologyLtdMember (label)Memberdurationauo:SunpowerTechnologyLtdMember
6 Joint ventures [axis]Axisdurationifrs-full:JointVenturesAxis
7 Entity's total for joint ventures [member]Memberdurationifrs-full:EntitysTotalForJointVenturesMember
8 AUO SunPower Sdn. Bhd [Member]Memberdurationauo:AuoSunpowerSdnBhdMember
9 Associates [axis]Axisdurationifrs-full:SignificantInvestmentsInAssociatesAxis
10 Entity's total for associates [member]Memberdurationifrs-full:EntitysTotalForAssociatesMember
11 auo:RaydiumSemiconductorCorporationMember (label)Memberdurationauo:RaydiumSemiconductorCorporationMember
12 Qisda Corporation [Member]Memberdurationauo:QisdaCorporationMember
13 Maturity [axis]Axisdurationifrs-full:MaturityAxis
14 Aggregated time bands [member]Memberdurationifrs-full:AggregatedTimeBandsMember
15 Contract Item [Axis]Axisdurationauo:ContractItemAxis
16 Contract Item [Domain]Memberdurationauo:ContractItemDomain
17 Disclosure of Investments in equity-accounted Investees [Line Items]LineItemsdurationauo:DisclosureOfInvestmentsInEquityaccountedInvesteesLineItems
18 Proportion of ownership interest in joint ventureConcept (Percent)durationifrs-full:ProportionOfOwnershipInterestInJointVenture
19 auo:OtherTangibleOrIntangibleAssetsTransferredToAcquireInterestsInJointVentures (label)Concept (Monetary)instantcreditauo:OtherTangibleOrIntangibleAssetsTransferredToAcquireInterestsInJointVentures
20 Other cash payments to acquire interests in joint ventures, classified as investing activitiesConcept (Monetary)durationcreditifrs-full:OtherCashPaymentsToAcquireInterestsInJointVenturesClassifiedAsInvestingActivities
21 auo:ConsiderationTransferredFromSalesOfInterestsInJointVentures (label)Concept (Monetary)durationdebitauo:ConsiderationTransferredFromSalesOfInterestsInJointVentures
22 auo:TotalOutstandingDisposalConsideration (label)Concept (Monetary)instantdebitauo:TotalOutstandingDisposalConsideration
23 auo:DisposalConsiderationWillBeReceivedInCashIn2018 (label)Concept (Monetary)instantdebitauo:DisposalConsiderationWillBeReceivedInCashIn2018
24 auo:DisposalConsiderationWillBeReceivedInCashIn2019 (label)Concept (Monetary)instantdebitauo:DisposalConsiderationWillBeReceivedInCashIn2019
25 auo:DisposalConsiderationWillBeReceivedInCashIn2020 (label)Concept (Monetary)instantdebitauo:DisposalConsiderationWillBeReceivedInCashIn2020
26 Proportion of ownership interest in associateConcept (Percent)durationifrs-full:ProportionOfOwnershipInterestInAssociate
27 ifrs-full:GainsLossesOnDisposalsOfInvestments (label)Concept (Monetary)durationcreditifrs-full:GainsLossesOnDisposalsOfInvestments

Model Structure
Network
209 - Disclosure - Disposal of Part of Ownership Interest in Subsidiary without Losing Control (Details)
(http://auo.com/role/DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlAbstract (label)Abstractdurationauo:DisclosureOfDisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlAbstract
2 auo:Disposalofpartofownershipinterestinsubsidiarywithoutlosingcontrolconsiderationreceived (terseLabel)Concept (Monetary)durationdebitauo:Disposalofpartofownershipinterestinsubsidiarywithoutlosingcontrolconsiderationreceived
3 auo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlConsiderationReceivedFromNoncontrollingInterests (terseLabel)Concept (Monetary)durationdebitauo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlConsiderationReceivedFromNoncontrollingInterests
4 auo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlCapitalSurplusFromChangeInOwnershipOfSubsidiary (terseLabel)Concept (Monetary)durationdebitauo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlCapitalSurplusFromChangeInOwnershipOfSubsidiary
5 auo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlotherEquityEffectFromForeignCurrencyTranslationDifferences (terseLabel)Concept (Monetary)durationdebitauo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlotherEquityEffectFromForeignCurrencyTranslationDifferences
6 auo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControldifferencesBetweenConsiderationAndCarryingAmountofSubsidiariesdisposedOf (terseLabel)Concept (Monetary)durationdebitauo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControldifferencesBetweenConsiderationAndCarryingAmountofSubsidiariesdisposedOf

Model Structure
Network
210 - Disclosure - Disposal of Part of Ownership Interest in Subsidiary without Losing Control (Details Textual)
(http://auo.com/role/DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlAbstract (label)Abstractdurationauo:DisclosureOfDisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlAbstract
2 auo:ProportionOfSubsidiaryOwnershipPercentageSold (label)Concept (Percent)durationauo:ProportionOfSubsidiaryOwnershipPercentageSold
3 auo:TotalCashConsiderationReceived (verboseLabel)Concept (Monetary)durationdebitauo:TotalCashConsiderationReceived

Model Structure
Network
211 - Disclosure - Disposal of Subsidiaries (Details)
(http://auo.com/role/DisposalOfSubsidiariesDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDisposalOfSubsidiariesAbstract (label)Abstractdurationauo:DisclosureOfDisposalOfSubsidiariesAbstract
2 Cash and cash equivalentsConcept (Monetary)durationdebitifrs-full:CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013
3 auo:AccountsReceivableAndOtherReceivablesInSubsidiaryOrBusinessesAcquiredOrDisposed (terseLabel)Concept (Monetary)durationdebitauo:AccountsReceivableAndOtherReceivablesInSubsidiaryOrBusinessesAcquiredOrDisposed
4 auo:OtherCurrentAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed (verboseLabel)Concept (Monetary)durationdebitauo:OtherCurrentAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed
5 auo:PropertyPlantAndEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed (verboseLabel)Concept (Monetary)durationdebitauo:PropertyPlantAndEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed
6 auo:OtherAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed (verboseLabel)Concept (Monetary)durationdebitauo:OtherAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed
7 auo:PayableForEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed (negatedLabel)Concept (Monetary)durationcreditauo:PayableForEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed
8 auo:AccruedExpenseAndOtherCurrentLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposed (negatedLabel)Concept (Monetary)durationcreditauo:AccruedExpenseAndOtherCurrentLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposed
9 auo:LongtermBorrowingsInSubsidiaryOrBusinessesAcquiredOrDisposed (negatedLabel)Concept (Monetary)durationcreditauo:LongtermBorrowingsInSubsidiaryOrBusinessesAcquiredOrDisposed
10 auo:NetAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed (totalLabel)Concept (Monetary)durationdebitauo:NetAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed

Model Structure
Network
212 - Disclosure - Disposal of Subsidiaries (Details Textual)
(http://auo.com/role/DisposalOfSubsidiariesDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDisposalOfSubsidiariesAbstract (label)Abstractdurationauo:DisclosureOfDisposalOfSubsidiariesAbstract
2 Portion of consideration paid (received) consisting of cash and cash equivalentsConcept (Monetary)durationcreditifrs-full:PortionOfConsiderationPaidReceivedConsistingOfCashAndCashEquivalents
3 auo:GainsOnDisposalOfSubsidiaries (verboseLabel)Concept (Monetary)durationcreditauo:GainsOnDisposalOfSubsidiaries

Model Structure
Network
213 - Disclosure - Property, Plant and Equipment (Details)
(http://auo.com/role/PropertyPlantAndEquipmentDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract (label)Abstractdurationifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
2 Disclosure Of Detailed Information About Property Plant And Equipment [Table]Tabledurationauo:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentTable
3 Classes of property, plant and equipment [axis]Axisdurationifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
4 Property, Plant and Equipment [Member]Memberdurationifrs-full:PropertyPlantAndEquipmentMember
5 Land [Member]Memberdurationifrs-full:LandMember
6 Buildings [member]Memberdurationifrs-full:BuildingsMember
7 Machinery and equipment [Member]Memberdurationauo:MachineryAndEquipmentsMember
8 Other equipment [Member]Memberdurationauo:OtherEquipmentMember
9 Prepayments for purchase of land and equipment, and construction in progress [Member]Memberdurationauo:PrepaymentsForPurchaseOfLandAndEquipmentAndConstructionInProgressMember
10 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]Axisdurationifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
11 Carrying amount [member]Memberdurationifrs-full:CarryingAmountMember
12 Gross carrying amount [member]Memberdurationifrs-full:GrossCarryingAmountMember
13 Accumulated depreciation, amortisation and impairment [member]Memberdurationifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
14 Disclosure Of Detailed Information About Property Plant And Equipment [Line Items]LineItemsdurationauo:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentLineItems
15 ifrs-full:PropertyPlantAndEquipment (periodStartLabel)Concept (Monetary)instantdebitifrs-full:PropertyPlantAndEquipment
16 AdditionsConcept (Monetary)durationdebitifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
17 Disposal or write offConcept (Monetary)durationcreditifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment
18 Reclassification and effect of change in exchange rateConcept (Monetary)durationdebitifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
19 Balance, End of YearConcept (Monetary)instantdebitifrs-full:PropertyPlantAndEquipment

Model Structure
Network
214 - Disclosure - Property, Plant and Equipment (Details 1)
(http://auo.com/role/PropertyPlantAndEquipmentDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract (label)Abstractdurationifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
2 Property, Plant and Equipment [Table]Tabledurationus-gaap:ScheduleOfPropertyPlantAndEquipmentTable
3 Levels of fair value hierarchy [axis]Axisdurationifrs-full:LevelsOfFairValueHierarchyAxis
4 All levels of fair value hierarchy [member]Memberdurationifrs-full:AllLevelsOfFairValueHierarchyMember
5 ifrs-full:Level3OfFairValueHierarchyMember (label)Memberdurationifrs-full:Level3OfFairValueHierarchyMember
6 Disclosure of detailed information about property, plant and equipment [line items]LineItemsdurationifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
7 Description of valuation techniques used in fair value measurement, assetsConcept (String)durationifrs-full:DescriptionOfValuationTechniquesUsedInFairValueMeasurementAssets
8 auo:SalesFairValueMeasurementAssetsOfValuationApproachAmount (label)Concept (Monetary)durationcreditauo:SalesFairValueMeasurementAssetsOfValuationApproachAmount
9 auo:SalesDiscountFairValueMeasurementAssetsOfValuationApproach (label)Concept (Percent)durationauo:SalesDiscountFairValueMeasurementAssetsOfValuationApproach
10 Description of interrelationships between unobservable inputs and of how they might magnify or mitigate effect of changes in unobservable inputs on fair value measurement, assetsConcept (String)durationifrs-full:DescriptionOfInterrelationshipsBetweenUnobservableInputsAndOfHowTheyMightMagnifyOrMitigateEffectOfChangesInUnobservableInputsOnFairValueMeasurementAssets

Model Structure
Network
215 - Disclosure - Property, Plant and Equipment (Details Textual)
(http://auo.com/role/PropertyPlantAndEquipmentDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract (label)Abstractdurationifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
2 Disclosure Of Detailed Information About Property Plant And Equipment [Table]Tabledurationauo:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentTable
3 Classes of property, plant and equipment [axis]Axisdurationifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
4 Property, Plant and Equipment [Member]Memberdurationifrs-full:PropertyPlantAndEquipmentMember
5 Non-irrigated farmland [Member]Memberdurationauo:NonirrigatedFarmlandMember
6 Subsidiaries [axis]Axisdurationifrs-full:SignificantInvestmentsInSubsidiariesAxis
7 Entity's total for subsidiaries [member]Memberdurationifrs-full:EntitysTotalForSubsidiariesMember
8 auo:AuoCrystalCorpMember (label)Memberdurationauo:AuoCrystalCorpMember
9 AUO [Member]Memberdurationauo:AuoMember
10 Classes of assets [axis]Axisdurationifrs-full:ClassesOfAssetsAxis
11 Assets [member]Memberdurationifrs-full:ClassesOfAssetsMember
12 Segments [axis]Axisdurationifrs-full:SegmentsAxis
13 Segments [member]Memberdurationifrs-full:SegmentsMember
14 auo:DisplaySegmentMember (label)Memberdurationauo:DisplaySegmentMember
15 auo:SolarSegmentMember (label)Memberdurationauo:SolarSegmentMember
16 Individual assets or cash-generating units [axis]Axisdurationifrs-full:IndividualAssetsOrCashgeneratingUnitsAxis
17 Entity's total for individual assets or cash-generating units [member]Memberdurationifrs-full:EntitysTotalForIndividualAssetsOrCashgeneratingUnitsMember
18 Polysilicon CGU [Member]Memberdurationauo:PolysiliconCguMember
19 Range [Axis]Axisdurationifrs-full:RangeAxis
20 Ranges [member]Memberdurationifrs-full:RangesMember
21 Bottom of range [member]Memberdurationifrs-full:BottomOfRangeMember
22 Top of range [member]Memberdurationifrs-full:TopOfRangeMember
23 Disclosure Of Detailed Information About Property Plant And Equipment [Line Items]LineItemsdurationauo:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentLineItems
24 ifrs-full:PropertyPlantAndEquipment (label)Concept (Monetary)instantdebitifrs-full:PropertyPlantAndEquipment
25 ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)Concept (Monetary)durationdebitifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
26 Impairment loss recognised in profit or loss, property, plant and equipmentConcept (Monetary)durationifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
27 ifrs-full:ImpairmentLoss (label)Concept (Monetary)durationdebitifrs-full:ImpairmentLoss
28 Borrowing costs capitalisedConcept (Monetary)durationifrs-full:BorrowingCostsCapitalised
29 Capitalisation rate of borrowing costs eligible for capitalisationConcept (Percent)durationifrs-full:CapitalisationRateOfBorrowingCostsEligibleForCapitalisation
30 ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)Concept (Monetary)durationcreditifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment

Model Structure
Network
216 - Disclosure - Investment Property (Details)
(http://auo.com/role/InvestmentPropertyDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of detailed information about investment property [abstract]Abstractdurationifrs-full:DisclosureOfInvestmentPropertyAbstract
2 Disclosure of detailed information about investment property [table]Tabledurationifrs-full:DisclosureOfInvestmentPropertyTable
3 Measurement [axis]Axisdurationifrs-full:MeasurementAxis
4 Aggregated measurement [member]Memberdurationifrs-full:AggregatedMeasurementMember
5 At cost [member]Memberdurationifrs-full:AtCostMember
6 At fair value [member]Memberdurationifrs-full:AtFairValueMember
7 Disclosure of detailed information about investment property [line items]LineItemsdurationifrs-full:DisclosureOfInvestmentPropertyLineItems
8 ifrs-full:InvestmentProperty (periodStartLabel)Concept (Monetary)instantdebitifrs-full:InvestmentProperty
9 AdditionsConcept (Monetary)durationdebitifrs-full:AdditionsOtherThanThroughBusinessCombinationsInvestmentProperty
10 DisposalConcept (Monetary)durationcreditifrs-full:DisposalsInvestmentProperty
11 Reclassification and effect of change in exchange rateConcept (Monetary)durationdebitifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesInvestmentProperty
12 Balance, End of YearConcept (Monetary)instantdebitifrs-full:InvestmentProperty

Model Structure
Network
217 - Disclosure - Investment Property (Details 1)
(http://auo.com/role/InvestmentPropertyDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of detailed information about investment property [abstract]Abstractdurationifrs-full:DisclosureOfInvestmentPropertyAbstract
2 Overall capital interest rateConcept (Percent)durationifrs-full:InterestRateSignificantUnobservableInputsAssets
3 Rate of returnConcept (Percent)durationifrs-full:WeightedAverageCostOfCapitalSignificantUnobservableInputsAssets
4 auo:CapitalizationRateSignificantUnabservableInputsAssets (verboseLabel)Concept (Percent)durationauo:CapitalizationRateSignificantUnabservableInputsAssets

Model Structure
Network
218 - Disclosure - Investment Property (Details Textual)
(http://auo.com/role/InvestmentPropertyDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of detailed information about investment property [abstract]Abstractdurationifrs-full:DisclosureOfInvestmentPropertyAbstract
2 auo:TransferFromPropertyPlantAndEquipmentToInvestmentProperty (label)Concept (Monetary)durationcreditauo:TransferFromPropertyPlantAndEquipmentToInvestmentProperty

Model Structure
Network
219 - Disclosure - Intangible Assets (Details)
(http://auo.com/role/IntangibleAssetsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of detailed information about intangible assets [abstract]Abstractdurationifrs-full:DisclosureOfIntangibleAssetsAbstract
2 Disclosure of detailed information about intangible assets [table]Tabledurationifrs-full:DisclosureOfIntangibleAssetsTable
3 Classes of intangible assets other than goodwill [axis]Axisdurationifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
4 Intangible assets other than goodwill [member]Memberdurationifrs-full:IntangibleAssetsOtherThanGoodwillMember
5 Patent and technology fee [Member]Memberdurationauo:PatentAndTechnologyFeeMember
6 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]Axisdurationifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
7 Carrying amount [member]Memberdurationifrs-full:CarryingAmountMember
8 Gross carrying amount [member]Memberdurationifrs-full:GrossCarryingAmountMember
9 Accumulated depreciation, amortisation and impairment [member]Memberdurationifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
10 Disclosure of detailed information about intangible assets [line items]LineItemsdurationifrs-full:DisclosureOfIntangibleAssetsLineItems
11 ifrs-full:IntangibleAssetsOtherThanGoodwill (periodStartLabel)Concept (Monetary)instantdebitifrs-full:IntangibleAssetsOtherThanGoodwill
12 AdditionsConcept (Monetary)durationdebitifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
13 auo:ReclassificationAndEffectOfChangeInExchangeRate (verboseLabel)Concept (Monetary)durationdebitauo:ReclassificationAndEffectOfChangeInExchangeRate
14 Balance, End of YearConcept (Monetary)instantdebitifrs-full:IntangibleAssetsOtherThanGoodwill

Model Structure
Network
220 - Disclosure - Other Current Assets and Other Noncurrent Assets (Details)
(http://auo.com/role/OtherCurrentAssetsAndOtherNoncurrentAssetsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOtherCurrentAssetsAndOtherNoncurrentAssetsAbstract (label)Abstractdurationauo:DisclosureOfOtherCurrentAssetsAndOtherNoncurrentAssetsAbstract
2 Other Current Assets and Other Noncurrent Assets [Table]Tabledurationauo:OtherCurrentAssetsAndOtherNoncurrentAssetsTable
3 Classes of assets [axis]Axisdurationifrs-full:ClassesOfAssetsAxis
4 Assets [member]Memberdurationifrs-full:ClassesOfAssetsMember
5 Prepayment for equipment [Member]Memberdurationauo:PrepaymentForEquipmentMember
6 Refundable and overpaid tax [Member]Memberdurationauo:RefundableAndOverpaidTaxMember
7 Long-term prepaid rents [Member]Memberdurationauo:LongtermPrepaidRentsMember
8 Prepayments for purchases [Member]Memberdurationauo:PrepaymentsForPurchasesMember
9 Long-term receivables [Member]Memberdurationauo:LongTermReceivablesMember
10 auo:RefundableDepositsMember (label)Memberdurationauo:RefundableDepositsMember
11 auo:OthersMember (label)Memberdurationauo:OthersMember
12 Other Current Assets and Other Noncurrent Assets [Line Items]LineItemsdurationauo:OtherCurrentAssetsAndOtherNoncurrentAssetsLineItems
13 Other AssetsConcept (Monetary)instantdebitifrs-full:OtherAssets
14 Less: currentConcept (Monetary)instantdebitifrs-full:OtherCurrentAssets
15 NoncurrentConcept (Monetary)instantdebitifrs-full:OtherNoncurrentAssets

Model Structure
Network
221 - Disclosure - Short-term Borrowings (Details)
(http://auo.com/role/ShorttermBorrowingsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfShortTermBorrowingsAbstract (label)Abstractdurationauo:DisclosureOfShortTermBorrowingsAbstract
2 Disclosure of detailed information about short term borrowings [Table]Tabledurationauo:DisclosureOfDetailedInformationAboutShortTermBorrowingsTable
3 Borrowings by name [axis]Axisdurationifrs-full:BorrowingsByNameAxis
4 Borrowings by name [member]Memberdurationifrs-full:BorrowingsByNameMember
5 auo:ShortTermBorrowingsMember (label)Memberdurationauo:ShortTermBorrowingsMember
6 Unsecured Borrowings [Member]Memberdurationauo:UnsecuredBorrowingsMember
7 Unused Credit Facility [Member]Memberdurationauo:UnusedCreditFacilityMember
8 Range [Axis]Axisdurationifrs-full:RangeAxis
9 Ranges [member]Memberdurationifrs-full:RangesMember
10 Bottom of range [member]Memberdurationifrs-full:BottomOfRangeMember
11 Top of range [member]Memberdurationifrs-full:TopOfRangeMember
12 Disclosure of detailed information about short term borrowings [Line Items]LineItemsdurationauo:DisclosureOfDetailedInformationAboutShortTermBorrowingsLineItems
13 Short-term BorrowingsConcept (Monetary)instantcreditifrs-full:ShorttermBorrowings
14 Unused credit facilityConcept (Monetary)instantcreditifrs-full:UndrawnBorrowingFacilities
15 Interest rateConcept (Percent)instantifrs-full:BorrowingsInterestRate

Model Structure
Network
222 - Disclosure - Convertible Bonds Payable (Details Textual)
(http://auo.com/role/ConvertibleBondsPayableDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of convertible bonds payable [Abstract]Abstractdurationauo:DisclosureOfConvertibleBondsPayableAbstract
2 Disclosure of convertible bonds payable [Table]Tabledurationauo:DisclosureOfConvertibleBondsPayableTable
3 Borrowings by name [axis]Axisdurationifrs-full:BorrowingsByNameAxis
4 Borrowings by name [member]Memberdurationifrs-full:BorrowingsByNameMember
5 Unsecured overseas convertible corporate bonds [Member]Memberdurationauo:UnsecuredOverseasConvertibleCorporateBondsMember
6 Disclosure of convertible bonds payable [Line Items]LineItemsdurationauo:DisclosureOfConvertibleBondsPayableLineItems
7 Notional amountConcept (Monetary)instantifrs-full:NotionalAmount
8 auo:ConvertibleBondsCouponRate (label)Concept (Percent)instantauo:ConvertibleBondsCouponRate
9 auo:ConvertibleBondsMaturity (label)Concept (String)durationauo:ConvertibleBondsMaturity
10 auo:PurchaseOfConvertibleBondsParValue (label)Concept (Monetary)durationcreditauo:PurchaseOfConvertibleBondsParValue
11 auo:PurchaseAmountOfConvertibleBonds (label)Concept (Monetary)durationcreditauo:PurchaseAmountOfConvertibleBonds
12 auo:RedemptionPricePercentage (label)Concept (Percent)instantauo:RedemptionPricePercentage

Model Structure
Network
223 - Disclosure - Long-term Borrowings (Details)
(http://auo.com/role/LongtermBorrowingsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfLongTermAbstract (label)Abstractdurationauo:DisclosureOfLongTermAbstract
2 Disclosure of detailed information about long term borrowings [Table]Tabledurationauo:DisclosureOfDetailedInformationAboutLongTermBorrowingsTable
3 Maturity [axis]Axisdurationifrs-full:MaturityAxis
4 Aggregated time bands [member]Memberdurationifrs-full:AggregatedTimeBandsMember
5 Repayment duration from Feb. 2015 to Feb. 2020 [member]Memberdurationauo:MaturityPeriodOneMember
6 Repayment duration from Apr. 2016 to Apr. 2021 [member]Memberdurationauo:MaturityPeriodTwoMember
7 Repayment duration from May 2017 to May 2022 [member]Memberdurationauo:MaturityPeriodThreeMember
8 Repayment duration from Jan. 2014 to Dec. 2017 [member]Memberdurationauo:MaturityPeriodFourMember
9 Repayment duration from Feb. 2013 to Mar. 2017 [member]Memberdurationauo:MaturityPeriodFiveMember
10 Repayment duration from Feb. 2016 to Feb. 2019 [member]Memberdurationauo:MaturityPeriodSixMember
11 Repayment duration from Sep. 2014 to Jun. 2017 [member]Memberdurationauo:MaturityPeriodSevenMember
12 Repayment duration from Nov. 2015 to Nov. 2023 [member]Memberdurationauo:MaturityPeriodEightMember
13 Repayment duration from Apr. 2012 to Apr. 2022 [member]Memberdurationauo:MaturityPeriodNineMember
14 Repayment duration from Apr. 2016 to Apr. 2032 [member]Memberdurationauo:MaturityPeriodTenMember
15 Range [Axis]Axisdurationifrs-full:RangeAxis
16 Ranges [member]Memberdurationifrs-full:RangesMember
17 Bottom of range [member]Memberdurationifrs-full:BottomOfRangeMember
18 Top of range [member]Memberdurationifrs-full:TopOfRangeMember
19 Liabilities arising from financing activities [axis]Axisdurationifrs-full:LiabilitiesArisingFromFinancingActivitiesAxis
20 Liabilities arising from financing activities [member]Memberdurationifrs-full:LiabilitiesArisingFromFinancingActivitiesMember
21 Long-term borrowings [member]Memberdurationifrs-full:LongtermBorrowingsMember
22 Classes of financial instruments [axis]Axisdurationifrs-full:ClassesOfFinancialInstrumentsAxis
23 Financial instruments, class [member]Memberdurationifrs-full:ClassesOfFinancialInstrumentsMember
24 Syndicated loans [Member]Memberdurationauo:SyndicatedLoansMember
25 Mortgage Loans [Member]Memberdurationauo:MortgageLoansMember
26 Unsecured Loans [Member]Memberdurationauo:UnsecuredLoansMember
27 Disclosure of detailed information about long term borrowings [Line Items]LineItemsdurationauo:DisclosureOfDetailedInformationAboutLongTermBorrowingsLineItems
28 auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)Concept (Monetary)instantcreditauo:CurrentAndNonCurrentPortionOfLongTermBarrowings
29 auo:UnamortizedBorrowingCosts (negatedTerseLabel)Concept (Monetary)instantdebitauo:UnamortizedBorrowingCosts
30 BorrowingsConcept (Monetary)instantcreditifrs-full:Borrowings
31 Less: current portionConcept (Monetary)instantcreditifrs-full:CurrentPortionOfLongtermBorrowings
32 ifrs-full:LongtermBorrowings (label)Concept (Monetary)instantcreditifrs-full:LongtermBorrowings
33 ifrs-full:BorrowingsInterestRate (label)Concept (Percent)instantifrs-full:BorrowingsInterestRate
34 ifrs-full:UndrawnBorrowingFacilities (label)Concept (Monetary)instantcreditifrs-full:UndrawnBorrowingFacilities

Model Structure
Network
224 - Disclosure - Long-term Borrowings (Details 1)
(http://auo.com/role/LongtermBorrowingsDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfLongTermAbstract (label)Abstractdurationauo:DisclosureOfLongTermAbstract
2 Disclosure of reconciliation of liabilities to cash flows arising from financing activities [Table]Tabledurationauo:DisclosureOfReconciliationOfLiabilitiesToCashFlowsArisingFromFinancingActivitiesTable
3 Liabilities Arising From Financing Activitie [axis]Axisdurationauo:LiabilitiesArisingFromFinancingActivitieAxis
4 Liabilities Arising From Financing Activitie [domain]Memberdurationauo:LiabilitiesArisingFromFinancingActivitieDomain
5 Short-term borrowingsMemberdurationauo:ShorttermBorrowingMember
6 Long-term borrowingsMemberdurationauo:LongtermBorrowing1Member
7 Guarantee deposits receivedMemberdurationauo:GuaranteeDepositsMember
8 Disclosure of reconciliation of liabilities to cash flows arising from financing activities [Line Items]LineItemsdurationauo:DisclosureOfReconciliationOfLiabilitiesToCashFlowsArisingFromFinancingActivitiesLineItems
9 ifrs-full:LiabilitiesArisingFromFinancingActivities (periodStartLabel)Concept (Monetary)instantcreditifrs-full:LiabilitiesArisingFromFinancingActivities
10 Cash flowsConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities
11 Non-cash changes, Changes in exchange rateConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities
12 Non-cash changes, Effect of change in consolidated entitiesConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities
13 Non-cash changes, Amortization on transaction costsConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities
14 December 31, 2017Concept (Monetary)instantcreditifrs-full:LiabilitiesArisingFromFinancingActivities

Model Structure
Network
225 - Disclosure - Provisions (Details)
(http://auo.com/role/ProvisionsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfProvisionsAbstract (label)Abstractdurationauo:DisclosureOfProvisionsAbstract
2 Disclosure of movements in provisions [Table]Tabledurationauo:DisclosureOfMovementsInProvisionsTable
3 Classes of other provisions [axis]Axisdurationifrs-full:ClassesOfProvisionsAxis
4 Other provisions [member]Memberdurationifrs-full:OtherProvisionsMember
5 Warranties [member]Memberdurationifrs-full:WarrantyProvisionMember
6 Litigation and claims [member]Memberdurationifrs-full:LegalProceedingsProvisionMember
7 Others [member]Memberdurationifrs-full:MiscellaneousOtherProvisionsMember
8 Disclosure of movements in provisions [Line Items]LineItemsdurationauo:DisclosureOfMovementsInProvisionsLineItems
9 ifrs-full:OtherProvisions (periodStartLabel)Concept (Monetary)instantcreditifrs-full:OtherProvisions
10 AdditionsConcept (Monetary)durationcreditifrs-full:AdditionalProvisionsOtherProvisions
11 UsageConcept (Monetary)durationdebitifrs-full:ProvisionUsedOtherProvisions
12 ReversalsConcept (Monetary)durationdebitifrs-full:UnusedProvisionReversedOtherProvisions
13 Effect of change in exchange rateConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions
14 Balance at end of the yearConcept (Monetary)instantcreditifrs-full:OtherProvisions
15 Less: currentConcept (Monetary)instantcreditifrs-full:CurrentProvisions
16 NoncurrentConcept (Monetary)instantcreditifrs-full:NoncurrentProvisions

Model Structure
Network
226 - Disclosure - Operating Leases (Details)
(http://auo.com/role/OperatingLeasesDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOperatingLeasesAbstract (label)Abstractdurationauo:DisclosureOfOperatingLeasesAbstract
2 Disclosure of non-cancellable lease payments [table]Tabledurationauo:DisclosureOfNoncancellableLeasePaymentsTable
3 Maturity [axis]Axisdurationifrs-full:MaturityAxis
4 Aggregated time bands [member]Memberdurationifrs-full:AggregatedTimeBandsMember
5 Less than one year [Member]Memberdurationifrs-full:NotLaterThanOneYearMember
6 Between one and five years [Member]Memberdurationifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
7 More than five years [Member]Memberdurationifrs-full:LaterThanFiveYearsMember
8 Disclosure of non-cancellable lease payments [line Items]LineItemsdurationauo:DisclosureOfNoncancellableLeasePaymentsLineItems
9 Minimum lease payments payable under non-cancellable operating leaseConcept (Monetary)instantcreditifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease

Model Structure
Network
227 - Disclosure - Operating Leases (Details 1)
(http://auo.com/role/OperatingLeasesDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOperatingLeasesAbstract (label)Abstractdurationauo:DisclosureOfOperatingLeasesAbstract
2 Disclosure of non-cancellable lease receivables [table]Tabledurationauo:DisclosureOfNoncancellableLeaseReceivablesTable
3 Maturity [axis]Axisdurationifrs-full:MaturityAxis
4 Aggregated time bands [member]Memberdurationifrs-full:AggregatedTimeBandsMember
5 Less than one year [Member]Memberdurationifrs-full:NotLaterThanOneYearMember
6 Between one and five years [Member]Memberdurationifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
7 More than five years [Member]Memberdurationifrs-full:LaterThanFiveYearsMember
8 Disclosure of non-cancellable lease receivables [line Items]LineItemsdurationauo:DisclosureOfNoncancellableLeaseReceivablesLineItems
9 Minimum lease payments receivable under non-cancellable operating leaseConcept (Monetary)instantdebitifrs-full:MinimumLeasePaymentsReceivableUnderNoncancellableOperatingLease

Model Structure
Network
228 - Disclosure - Operating Leases (Details Textual)
(http://auo.com/role/OperatingLeasesDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOperatingLeasesAbstract (label)Abstractdurationauo:DisclosureOfOperatingLeasesAbstract
2 Disclosure of finance lease and operating lease by lessee [table]Tabledurationifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
3 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
4 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
5 Hsinchu Science Park Administration Bureaus [Member]Memberdurationauo:HsinchuScienceParkAdministrationBureausMember
6 Tainan Technology Industrial Park [Member]Memberdurationauo:TainanTechnologyIndustrialParkMember
7 Disclosure of operating leases [Line Items]LineItemsdurationauo:DisclosureOfOperatingLeasesLineItems
8 Description of material leasing arrangements by lessee classified as operating leaseConcept (String)durationifrs-full:DescriptionOfMaterialLeasingArrangementsByLesseeClassifiedAsOperatingLease
9 ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)Concept (Monetary)durationcreditifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
10 Lease and sublease payments recognised as expenseConcept (Monetary)durationdebitifrs-full:LeaseAndSubleasePaymentsRecognisedAsExpense
11 Repairs and maintenance expense, recognized by the lessorConcept (Monetary)durationdebitifrs-full:RepairsAndMaintenanceExpense

Model Structure
Network
229 - Disclosure - Employee Benefits (Details)
(http://auo.com/role/EmployeeBenefitsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfEmployeeBenefitsAbstract (label)Abstractdurationauo:DisclosureOfEmployeeBenefitsAbstract
2 Present value of defined benefit obligationConcept (Monetary)instantcreditifrs-full:DefinedBenefitObligationAtPresentValue
3 Fair value of plan assetsConcept (Monetary)instantdebitifrs-full:PlanAssetsAtFairValue
4 ifrs-full:LiabilityAssetOfDefinedBenefitPlans (negatedTotalLabel)Concept (Monetary)instantcreditifrs-full:LiabilityAssetOfDefinedBenefitPlans

Model Structure
Network
230 - Disclosure - Employee Benefits (Details 1)
(http://auo.com/role/EmployeeBenefitsDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfEmployeeBenefitsAbstract (label)Abstractdurationauo:DisclosureOfEmployeeBenefitsAbstract
2 Disclosure of reconciliation for net defined benefit liability and its components [Table]Tabledurationauo:DisclosureOfReconciliationForNetDefinedBenefitLiabilityAndItsComponentsTable
3 Net defined benefit liability (asset) [axis]Axisdurationifrs-full:NetDefinedBenefitLiabilityAssetAxis
4 Net defined benefit liability (asset) [member]Memberdurationifrs-full:NetDefinedBenefitLiabilityAssetMember
5 Defined benefit obligation [member]Memberdurationifrs-full:PresentValueOfDefinedBenefitObligationMember
6 Fair value of plan assets [member]Memberdurationifrs-full:PlanAssetsMember
7 Net Defined Benefit Plan, BalanceLineItemsdurationauo:DisclosureOfReconciliationForNetDefinedBenefitLiabilityAndItsComponentsLineItems
8 ifrs-full:LiabilityAssetOfDefinedBenefitPlans (negatedPeriodStartLabel)Concept (Monetary)instantcreditifrs-full:LiabilityAssetOfDefinedBenefitPlans
9 Net defined benefit obligation, included in profit or lossAbstractdurationauo:DefinedBenefitPlanIncludedInProfitLossAbstract
10 Service costConcept (Monetary)durationcreditifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
11 Interest costConcept (Monetary)durationcreditifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
12 Expected return on plan assetsConcept (Monetary)durationdebitifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset
13 auo:DefinedBenefitPlanIncludedInProfitLoss (negatedTotalLabel)Concept (Monetary)durationcreditauo:DefinedBenefitPlanIncludedInProfitLoss
14 Defined Benefit Plan, Included In Other Comprehensive Income Loss [abstract]Abstractdurationauo:DefinedBenefitPlanIncludedInOtherComprehensiveIncomeLossAbstract
15 Remeasurements (loss) gain:Abstractdurationifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract
16 Actuarial (loss) gain arising from:Abstractdurationauo:DefinedBenefitPlanActuarialLossGainAbstract
17 Demographic assumptionsConcept (Monetary)durationdebitifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
18 Financial assumptionsConcept (Monetary)durationdebitifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
19 Experience adjustmentConcept (Monetary)durationdebitifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset
20 auo:ReturnOnPlanAssetsExcludingInterestIncomeNetDefinedBenefitLiabilityAsset (verboseLabel)Concept (Monetary)durationdebitauo:ReturnOnPlanAssetsExcludingInterestIncomeNetDefinedBenefitLiabilityAsset
21 Net Defined Benefit Obligation, Included in OCIConcept (Monetary)durationcreditifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
22 Net Defined Benefit Plan, Other [abstract]Abstractdurationauo:DefinedBenefitPlanOtherAbstract
23 Contributions paid by the employerConcept (Monetary)durationdebitifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
24 Benefits paidConcept (Monetary)durationdebitifrs-full:PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset
25 Effect of changes in exchange rates and othersConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset
26 Increase (decrease) in net defined benefit liability (asset) through other changesConcept (Monetary)durationcreditifrs-full:IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset
27 Net defined benefit (liability) assetConcept (Monetary)instantcreditifrs-full:LiabilityAssetOfDefinedBenefitPlans

Model Structure
Network
231 - Disclosure - Employee Benefits (Details 2)
(http://auo.com/role/EmployeeBenefitsDetails2)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfEmployeeBenefitsAbstract (label)Abstractdurationauo:DisclosureOfEmployeeBenefitsAbstract
2 Disclosure of principal actuarial assumptions [Table]Tabledurationauo:DisclosureOfPrincipalActuarialAssumptionsTable
3 Range [Axis]Axisdurationifrs-full:RangeAxis
4 Ranges [member]Memberdurationifrs-full:RangesMember
5 Bottom of range [member]Memberdurationifrs-full:BottomOfRangeMember
6 Top of range [member]Memberdurationifrs-full:TopOfRangeMember
7 Disclosure of principal actuarial assumptions [Line Items]LineItemsdurationauo:DisclosureOfPrincipalActuarialAssumptionsLineItems
8 Discount rateConcept (Percent)instantifrs-full:ActuarialAssumptionOfDiscountRates
9 Rate of increase in future salaryConcept (Percent)instantifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases

Model Structure
Network
232 - Disclosure - Employee Benefits (Details 3)
(http://auo.com/role/EmployeeBenefitsDetails3)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfEmployeeBenefitsAbstract (label)Abstractdurationauo:DisclosureOfEmployeeBenefitsAbstract
2 Disclosure of affected defined benefit obligation amount with changes in assumptionsTabledurationauo:DisclosureOfAffectedDefinedBenefitObligationByAmountsTable
3 Actuarial assumptions [axis]Axisdurationifrs-full:ActuarialAssumptionsAxis
4 Actuarial assumptions [member]Memberdurationifrs-full:ActuarialAssumptionsMember
5 Actuarial assumption of discount rates [member]Memberdurationifrs-full:ActuarialAssumptionOfDiscountRatesMember
6 Actuarial assumption of expected rates of salary increases [member]Memberdurationifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember
7 Disclosure of affected defined benefit obligation amount with changes in assumptionsLineItemsdurationauo:DisclosureOfAffectedDefinedBenefitObligationByAmountsLineItems
8 Increase (decrease) in defined benefit obligation due to 0.25% increase in actuarial assumptionConcept (Monetary)instantcreditifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption
9 Increase (decrease) in defined benefit obligation due to 0.25% decrease in actuarial assumptionConcept (Monetary)instantcreditifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption

Model Structure
Network
233 - Disclosure - Employee Benefits (Details Textual)
(http://auo.com/role/EmployeeBenefitsDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfEmployeeBenefitsAbstract (label)Abstractdurationauo:DisclosureOfEmployeeBenefitsAbstract
2 Disclosure Of Employee Benefits Explanatory [Table]Tabledurationauo:DisclosureOfEmployeeBenefitsExplanatoryTable
3 Defined benefit plans [axis]Axisdurationifrs-full:DefinedBenefitPlansAxis
4 Defined benefit plans [member]Memberdurationifrs-full:DefinedBenefitPlansMember
5 Domestic defined contribution plans [member]Memberdurationifrs-full:DomesticDefinedBenefitPlansMember
6 Overseas defined contribution plans [Member]Memberdurationifrs-full:ForeignDefinedBenefitPlansMember
7 Range [Axis]Axisdurationifrs-full:RangeAxis
8 Ranges [member]Memberdurationifrs-full:RangesMember
9 Disclosure Of Employee Benefits Explanatory [Line Items]LineItemsdurationauo:DisclosureOfEmployeeBenefitsExplanatoryLineItems
10 Assets of benefit planConcept (Monetary)instantdebitifrs-full:AssetsOfBenefitPlan
11 Termination benefits expenseConcept (Monetary)durationdebitifrs-full:TerminationBenefitsExpense
12 Gains (losses) arising from settlements, net defined benefit liability (asset)Concept (Monetary)durationdebitifrs-full:GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset
13 Estimate of contributions expected to be paid to plan for next annual reporting periodConcept (Monetary)durationcreditifrs-full:EstimateOfContributionsExpectedToBePaidToPlan
14 Employee benefits expenseConcept (Monetary)durationdebitifrs-full:EmployeeBenefitsExpense

Model Structure
Network
234 - Disclosure - Capital and Other Components of Equity (Details)
(http://auo.com/role/CapitalAndOtherComponentsOfEquityDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfCapitalAndOtherComponentsOfEquityAbstract (label)Abstractdurationauo:DisclosureOfCapitalAndOtherComponentsOfEquityAbstract
2 Disclosure of balance of capital surplus [Table]Tabledurationauo:DisclosureOfBalanceOfCapitalSurplusTable
3 Classes of share capital [axis]Axisdurationifrs-full:ClassesOfShareCapitalAxis
4 Share capital [member]Memberdurationifrs-full:ClassesOfShareCapitalMember
5 From common stockMemberdurationifrs-full:OrdinarySharesMember
6 Miscellaneous Component Of Equity [axis]Axisdurationauo:MiscellaneousComponentOfEquityAxis
7 Miscellaneous Component Of Equity [Domain]Memberdurationauo:MiscellaneousComponentOfEquityDomain
8 From convertible bondsMemberdurationifrs-full:ReserveOfEquityComponentOfConvertibleInstrumentsMember
9 From othersMemberdurationifrs-full:MiscellaneousOtherReservesMember
10 Disclosure of balance of capital surplus [Line Items]LineItemsdurationauo:DisclosureOfBalanceOfCapitalSurplusLineItems
11 Capital surplusConcept (Monetary)instantcreditifrs-full:SharePremium

Model Structure
Network
235 - Disclosure - Capital and Other Components of Equity (Details 1)
(http://auo.com/role/CapitalAndOtherComponentsOfEquityDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfDistributionOfEarningsAbstract (label)Abstractdurationauo:DisclosureOfDistributionOfEarningsAbstract
2 auo:IncreaseDecreaseThroughTransferToLegalReserve (verboseLabel)Concept (Monetary)durationcreditauo:IncreaseDecreaseThroughTransferToLegalReserve
3 Cash dividends to shareholdersConcept (Monetary)durationifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners
4 Cash dividends to shareholders, per shareConcept (Per-Share)durationifrs-full:DividendsPaidOrdinarySharesPerShare
5 auo:AppropriationOfEarnings (label)Concept (Monetary)durationdebitauo:AppropriationOfEarnings

Model Structure
Network
236 - Disclosure - Capital and Other Components of Equity (Details 2)
(http://auo.com/role/CapitalAndOtherComponentsOfEquityDetails2)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfCapitalAndOtherComponentsOfEquityAbstract (label)Abstractdurationauo:DisclosureOfCapitalAndOtherComponentsOfEquityAbstract
2 Disclosure other components of equity [Table]Tabledurationauo:DisclosureOtherComponentsOfEquityTable
3 Components of equity [axis]Axisdurationifrs-full:ComponentsOfEquityAxis
4 Equity [Member]Memberdurationifrs-full:EquityMember
5 Cumulative translation differencesMemberdurationifrs-full:ReserveOfExchangeDifferencesOnTranslationMember
6 ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (verboseLabel)Memberdurationifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember
7 ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (verboseLabel)Memberdurationifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember
8 Miscellaneous Component Of Equity [axis]Axisdurationauo:MiscellaneousComponentOfEquityAxis
9 Miscellaneous Component Of Equity [Domain]Memberdurationauo:MiscellaneousComponentOfEquityDomain
10 AOCI Attributable to Parent [Member]Memberdurationifrs-full:AccumulatedOtherComprehensiveIncomeMember
11 Disclosure of other components of equity [Line Items]LineItemsdurationauo:DisclosureOfOtherComponentsOfEquityLineItems
12 ifrs-full:OtherReserves (periodStartLabel)Concept (Monetary)instantcreditifrs-full:OtherReserves
13 Foreign operations - foreign currency translation differencesConcept (Monetary)durationcreditifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax
14 Effective portion of changes in fair value of cash flow hedgesConcept (Monetary)durationcreditifrs-full:GainsLossesOnCashFlowHedgesBeforeTax
15 Net change in fair value of available-for-sale financial assetsConcept (Monetary)durationcreditifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax
16 Equity-accounted investees - share of other comprehensive incomeConcept (Monetary)durationcreditifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax
17 Realized gain on sales of securities reclassified to profit or lossConcept (Monetary)durationdebitifrs-full:ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsBeforeTax
18 ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (verboseLabel)Concept (Monetary)durationifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
19 Balance endingConcept (Monetary)instantcreditifrs-full:OtherReserves

Model Structure
Network
237 - Disclosure - Capital and Other Components of Equity (Details 3)
(http://auo.com/role/CapitalAndOtherComponentsOfEquityDetails3)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of Non-controlling interests, net of tax [Abstract]Abstractdurationauo:DisclosureOfNoncontrollingInterestsNetOfTaxAbstract
2 ifrs-full:NoncontrollingInterests (periodStartLabel)Concept (Monetary)instantcreditifrs-full:NoncontrollingInterests
3 Equity attributable to non-controlling interests:Abstractdurationauo:EquityAttributableToNoncontrollingInterestsAbstract
4 Loss for the yearConcept (Monetary)durationcreditifrs-full:ProfitLossAttributableToNoncontrollingInterests
5 auo:AdjustmentOfChangesInOwnershipOfNoncontrollingInterests (verboseLabel)Concept (Monetary)durationdebitauo:AdjustmentOfChangesInOwnershipOfNoncontrollingInterests
6 auo:ForeignCurrencyTranslationDifferencesAttributableToNoncontrollingInterest (verboseLabel)Concept (Monetary)durationcreditauo:ForeignCurrencyTranslationDifferencesAttributableToNoncontrollingInterest
7 auo:RemeasurementOfDefinedBenefitPlansAttributableToNoncontrollingInterests (negatedTerseLabel)Concept (Monetary)durationcreditauo:RemeasurementOfDefinedBenefitPlansAttributableToNoncontrollingInterests
8 ifrs-full:ProceedsFromContributionsOfNoncontrollingInterests (terseLabel)Concept (Monetary)durationdebitifrs-full:ProceedsFromContributionsOfNoncontrollingInterests
9 Effect of disposal of interest in subsidiary to non-controlling interestsConcept (Monetary)durationcreditifrs-full:PaymentsFromChangesInOwnershipInterestsInSubsidiaries
10 auo:EffectOfAcquisitionOfNoncontrollingInterests (verboseLabel)Concept (Monetary)durationcreditauo:EffectOfAcquisitionOfNoncontrollingInterests
11 Redemption of subsidiary treasury sharesConcept (Monetary)durationcreditifrs-full:PaymentsToAcquireOrRedeemEntitysShares
12 auo:NoncontrollingInterestsOtherAdjustments (verboseLabel)Concept (Monetary)durationcreditauo:NoncontrollingInterestsOtherAdjustments
13 Balance at the end of the yearConcept (Monetary)instantcreditifrs-full:NoncontrollingInterests

Model Structure
Network
238 - Disclosure - Capital and Other Components of Equity (Details Textual)
(http://auo.com/role/CapitalAndOtherComponentsOfEquityDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfCapitalAndOtherComponentsOfEquityAbstract (label)Abstractdurationauo:DisclosureOfCapitalAndOtherComponentsOfEquityAbstract
2 Disclosure of Capital and Other Components of Equity [Table]Tabledurationauo:DisclosureOfCapitalAndOtherComponentsOfEquityTable
3 Classes of share capital [axis]Axisdurationifrs-full:ClassesOfShareCapitalAxis
4 Share capital [member]Memberdurationifrs-full:ClassesOfShareCapitalMember
5 American Depositary Shares [member]Memberdurationauo:AmericanDepositarySharesMember
6 Disclosure Of Capital And Other Components Of Equity [Line Items]LineItemsdurationauo:DisclosureOfCapitalAndOtherComponentsOfEquityLineItems
7 Par value per shareConcept (Per-Share)instantifrs-full:ParValuePerShare
8 auo:AuthorizedCapital (label)Concept (Monetary)instantcreditauo:AuthorizedCapital
9 ifrs-full:IssuedCapital (label)Concept (Monetary)instantcreditifrs-full:IssuedCapital
10 Number of shares issuedConcept (Shares)instantifrs-full:NumberOfSharesIssued
11 auo:CapitalSurplusCapitalizedRate (label)Concept (Percent)instantauo:CapitalSurplusCapitalizedRate
12 auo:LegalReserveDistributionDescription (label)Concept (String)durationauo:LegalReserveDistributionDescription
13 auo:DescriptionOfDistributionOfEarningsAndDividendPolicy (label)Concept (String)durationauo:DescriptionOfDistributionOfEarningsAndDividendPolicy
14 auo:NumberOfOrdinarySharesRepresented (label)Concept (Shares)instantauo:NumberOfOrdinarySharesRepresented

Model Structure
Network
239 - Disclosure - Share-based Payments (Details)
(http://auo.com/role/SharebasedPaymentsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSharebasedPaymentsAbstract (label)Abstractdurationauo:DisclosureOfSharebasedPaymentsAbstract
2 Disclosure of outstanding stock options [Table]Tabledurationauo:DisclosureOfOutstandingStockOptionsTable
3 Plan Names [axis]Axisdurationauo:PlanNamesAxis
4 Plan Names [Domain]Memberdurationauo:PlanNamesDomain
5 Employee Stock Option Plan 2011 [member]Memberdurationauo:EmployeeStockOptionPlan2011Member
6 Option Plans [Axis]Axisdurationauo:OptionPlansAxis
7 Option Plans [Domain]Memberdurationauo:OptionPlansDomain
8 DPTW Option Plan [Member]Memberdurationauo:DptwOptionPlanMember
9 Disclosure of outstanding stock options [Line Items]LineItemsdurationauo:DisclosureOfOutstandingStockOptionsLineItems
10 ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (periodStartLabel)Concept (Monetary)instantifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
11 Weighted average exercise price (per share), Options expiredConcept (Monetary)durationifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement
12 Weighted-average exercise price (per share), Outstanding Beggining balanceConcept (Monetary)instantifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
13 ifrs-full:NumberOfOutstandingShareOptions (periodStartLabel)Concept (Decimal)instantifrs-full:NumberOfOutstandingShareOptions
14 ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement (negatedLabel)Concept (Decimal)durationifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement
15 Number of options, Outstanding at Ending balanceConcept (Decimal)instantifrs-full:NumberOfOutstandingShareOptions
16 Number of options, Exercisable at Ending balanceConcept (Decimal)instantifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement

Model Structure
Network
240 - Disclosure - Share-based Payments (Details 1)
(http://auo.com/role/SharebasedPaymentsDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSharebasedPaymentsAbstract (label)Abstractdurationauo:DisclosureOfSharebasedPaymentsAbstract
2 Disclosure of terms and conditions relating to employee stock option plan [Table]Tabledurationauo:DisclosureOfTermsAndConditionsRelatingToEmployeeStockOptionPlanTable
3 Plan Names [axis]Axisdurationauo:PlanNamesAxis
4 Plan Names [Domain]Memberdurationauo:PlanNamesDomain
5 Employee Stock Option Plan 2014 [member]Memberdurationauo:EmployeeStockOptionPlan2014Member
6 Option Plan [Axis]Axisdurationauo:OptionPlanAxis
7 Option Plans [Domain]Memberdurationauo:OptionPlansDomain
8 ACTW Option Plan [Member]Memberdurationauo:ActwOptionPlanMember
9 Disclosure of terms and conditions relating to employee stock option plan [Line Items]LineItemsdurationauo:DisclosureOfTermsAndConditionsRelatingToEmployeeStockOptionPlanLineItems
10 Grant dateConcept (String)durationifrs-full:DateOfGrantOfSharebasedPaymentArrangement
11 Total number of options issued (units)Concept (Decimal)durationifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
12 auo:WeightedAverageRemainingContractualLifeOfShareOptionsIssued (terseLabel)Concept (String)durationauo:WeightedAverageRemainingContractualLifeOfShareOptionsIssued
13 auo:ShareBasedArrangementsExercisablePeriodShareOptionsIssued (terseLabel)Concept (String)durationauo:ShareBasedArrangementsExercisablePeriodShareOptionsIssued
14 ifrs-full:ExercisePriceOfOutstandingShareOptions (terseLabel)Concept (Monetary)instantifrs-full:ExercisePriceOfOutstandingShareOptions

Model Structure
Network
241 - Disclosure - Share-based Payments (Details 2)
(http://auo.com/role/SharebasedPaymentsDetails2)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSharebasedPaymentsAbstract (label)Abstractdurationauo:DisclosureOfSharebasedPaymentsAbstract
2 Disclosure of valuation information [Table]Tabledurationauo:DisclosureOfValuationInformationTable
3 Plan Names [axis]Axisdurationauo:PlanNamesAxis
4 Plan Names [Domain]Memberdurationauo:PlanNamesDomain
5 Employee Stock Option Plan 2014 [member]Memberdurationauo:EmployeeStockOptionPlan2014Member
6 Option Plans [Axis]Axisdurationauo:OptionPlansAxis
7 Option Plans [Domain]Memberdurationauo:OptionPlansDomain
8 ACTW Option Plan [Member]Memberdurationauo:ActwOptionPlanMember
9 Disclosure of valuation information [Line Items]LineItemsdurationauo:DisclosureOfValuationInformationLineItems
10 Expected volatilityConcept (Percent)durationifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
11 Risk-free interest rateConcept (Percent)durationifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
12 Expected duration (in years)Concept (Decimal)durationifrs-full:DescriptionOfOptionLifeShareOptionsGranted
13 Fair value at the grant date (per unit)Concept (Monetary)instantcreditifrs-full:WeightedAverageFairValueAtMeasurementDateShareOptionsGranted

Model Structure
Network
242 - Disclosure - Share-based Payments (Details 3)
(http://auo.com/role/SharebasedPaymentsDetails3)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSharebasedPaymentsAbstract (label)Abstractdurationauo:DisclosureOfSharebasedPaymentsAbstract
2 Disclosure of outstanding stock options [Table]Tabledurationauo:DisclosureOfOutstandingStockOptionsTable
3 Option Plans [Axis]Axisdurationauo:OptionPlansAxis
4 Option Plans [Domain]Memberdurationauo:OptionPlansDomain
5 ACTW Option Plan [Member]Memberdurationauo:ActwOptionPlanMember
6 auo:PlanNamesAxis (label)Axisdurationauo:PlanNamesAxis
7 Plan Names [Domain]Memberdurationauo:PlanNamesDomain
8 auo:EmployeeStockOptionPlan2014Member (label)Memberdurationauo:EmployeeStockOptionPlan2014Member
9 Disclosure of outstanding stock options [Line Items]LineItemsdurationauo:DisclosureOfOutstandingStockOptionsLineItems
10 ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (periodStartLabel)Concept (Monetary)instantifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
11 Weighted average exercise price (per share), Options exercisedConcept (Monetary)durationifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
12 Weighted average exercise price (per share), Options expiredConcept (Monetary)durationifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement
13 Weighted-average exercise price (per share), Outstanding Beggining balanceConcept (Monetary)instantifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
14 ifrs-full:NumberOfOutstandingShareOptions (periodStartLabel)Concept (Decimal)instantifrs-full:NumberOfOutstandingShareOptions
15 Number of options, Options exercisedConcept (Decimal)durationifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
16 Number of options, Options expiredConcept (Decimal)durationifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement
17 Number of options, Outstanding at Ending balanceConcept (Decimal)instantifrs-full:NumberOfOutstandingShareOptions
18 ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement (terseLabel)Concept (Decimal)instantifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement

Model Structure
Network
243 - Disclosure - Share-based Payments (Details Textual)
(http://auo.com/role/SharebasedPaymentsDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSharebasedPaymentsAbstract (label)Abstractdurationauo:DisclosureOfSharebasedPaymentsAbstract
2 Disclosure of Share-based Payments [Table]Tabledurationauo:DisclosureOfSharebasedPaymentsTable
3 auo:PlanNamesAxis (label)Axisdurationauo:PlanNamesAxis
4 Plan Names [Domain]Memberdurationauo:PlanNamesDomain
5 Option Plans [Axis]Axisdurationauo:OptionPlansAxis
6 Option Plans [Domain]Memberdurationauo:OptionPlansDomain
7 ACTW Option Plan [Member]Memberdurationauo:ActwOptionPlanMember
8 Disclosure of Share-based Payments [Line Items]LineItemsdurationauo:DisclosureOfSharebasedPaymentsLineItems
9 Expense from share-based payment transactions with employeesConcept (Monetary)durationdebitifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees

Model Structure
Network
244 - Disclosure - Revenue (Details)
(http://auo.com/role/RevenueDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRevenueAbstract (label)Abstractdurationauo:DisclosureOfRevenueAbstract
2 Statement [Table]Tabledurationus-gaap:StatementTable
3 Class of Stock [axis]Axisdurationus-gaap:StatementClassOfStockAxis
4 Class of Stock [Domain]Memberdurationus-gaap:ClassOfStockDomain
5 Statement [Line Items]LineItemsdurationus-gaap:StatementLineItems
6 Sale of goodsConcept (Monetary)durationcreditifrs-full:RevenueFromSaleOfGoods
7 Other operating revenueConcept (Monetary)durationcreditifrs-full:OtherRevenue
8 ifrs-full:Revenue (totalLabel)Concept (Monetary)durationcreditifrs-full:Revenue

Model Structure
Network
245 - Disclosure - Remuneration to Employees and Directors (Details Textual)
(http://auo.com/role/RemunerationToEmployeesAndDirectorsDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRemunerationToEmployeesAndDirectorsAbstract (label)Abstractdurationauo:DisclosureOfRemunerationToEmployeesAndDirectorsAbstract
2 auo:EmployeesMinimumRemunerationPercentage (label)Concept (Percent)durationauo:EmployeesMinimumRemunerationPercentage
3 auo:DirectorsMaximumRemunerationPercentage (label)Concept (Percent)durationauo:DirectorsMaximumRemunerationPercentage
4 Other short-term employee benefitsConcept (Monetary)durationdebitifrs-full:OtherShorttermEmployeeBenefits
5 Directors' remuneration expenseConcept (Monetary)durationdebitifrs-full:DirectorsRemunerationExpense

Model Structure
Network
246 - Disclosure - The Nature of Expenses (Details)
(http://auo.com/role/NatureOfExpensesDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfExpensesByNatureExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfExpensesByNatureExplanatoryAbstract
2 Disclosure Of Expenses By Nature Explanatory [Table]Tabledurationauo:DisclosureOfExpensesByNatureExplanatoryTable
3 auo:IncomeStatementAxis (label)Axisdurationauo:IncomeStatementAxis
4 Income Statement [Domain]Memberdurationauo:IncomeStatementDomain
5 auo:CostOfSaleMember (verboseLabel)Memberdurationauo:CostOfSaleMember
6 auo:OperatingExpensesMember (label)Memberdurationauo:OperatingExpensesMember
7 auo:DisclosureOfExpensesByNatureExplanatoryLineItems (label)LineItemsdurationauo:DisclosureOfExpensesByNatureExplanatoryLineItems
8 ifrs-full:DepreciationExpense (label)Concept (Monetary)durationdebitifrs-full:DepreciationExpense

Model Structure
Network
247 - Disclosure - The Nature of Expenses (Details 1)
(http://auo.com/role/NatureOfExpensesDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfExpensesByNatureExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfExpensesByNatureExplanatoryAbstract
2 Disclosure Of Expenses By Nature Explanatory [Table]Tabledurationauo:DisclosureOfExpensesByNatureExplanatoryTable
3 Income Statement [axis]Axisdurationauo:IncomeStatementAxis
4 Income Statement [Domain]Memberdurationauo:IncomeStatementDomain
5 Cost Of Sales [member]Memberdurationauo:CostOfSaleMember
6 Operating Expenses [member]Memberdurationauo:OperatingExpensesMember
7 auo:DisclosureOfExpensesByNatureExplanatoryLineItems (label)LineItemsdurationauo:DisclosureOfExpensesByNatureExplanatoryLineItems
8 ifrs-full:AmortisationExpense (label)Concept (Monetary)durationdebitifrs-full:AmortisationExpense

Model Structure
Network
248 - Disclosure - The Nature of Expenses (Details 2)
(http://auo.com/role/NatureOfExpensesDetails2)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfExpensesByNatureExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfExpensesByNatureExplanatoryAbstract
2 Disclosure Of Expenses By Nature Explanatory [Table]Tabledurationauo:DisclosureOfExpensesByNatureExplanatoryTable
3 auo:IncomeStatementAxis (label)Axisdurationauo:IncomeStatementAxis
4 Income Statement [Domain]Memberdurationauo:IncomeStatementDomain
5 auo:CostOfSaleMember (label)Memberdurationauo:CostOfSaleMember
6 auo:OperatingExpensesMember (label)Memberdurationauo:OperatingExpensesMember
7 auo:DisclosureOfDetailedInformationOfEmployeesBenefitsExpensesLineItems (label)LineItemsdurationauo:DisclosureOfDetailedInformationOfEmployeesBenefitsExpensesLineItems
8 Salaries and wagesConcept (Monetary)durationdebitifrs-full:WagesAndSalaries
9 Labor and health insurancesConcept (Monetary)durationdebitifrs-full:SocialSecurityContributions
10 auo:PostemploymentBenefitExpenseDefinedBenefitPlansAndDefinedContributionPlans (terseLabel)Concept (Monetary)durationdebitauo:PostemploymentBenefitExpenseDefinedBenefitPlansAndDefinedContributionPlans
11 Other employee benefitsConcept (Monetary)durationdebitifrs-full:OtherEmployeeExpense
12 Employee benefits expenseConcept (Monetary)durationdebitifrs-full:EmployeeBenefitsExpense

Model Structure
Network
249 - Disclosure - Other Income (Details)
(http://auo.com/role/OtherIncomeDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOtherIncomeExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfOtherIncomeExplanatoryAbstract
2 Interest income on bank depositsConcept (Monetary)durationcreditifrs-full:InterestIncomeOnDeposits
3 Interest income on government bonds with reverse repurchase agreements and othersConcept (Monetary)durationcreditifrs-full:InterestIncomeOnReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed
4 Rental income, netConcept (Monetary)durationcreditifrs-full:RentalIncome
5 Dividend incomeConcept (Monetary)durationcreditifrs-full:RevenueFromDividends
6 GrantsConcept (Monetary)durationcreditifrs-full:RevenueFromGovernmentGrants
7 OthersConcept (Monetary)durationcreditifrs-full:MiscellaneousOtherOperatingIncome
8 Other incomeConcept (Monetary)durationcreditifrs-full:OtherIncome

Model Structure
Network
250 - Disclosure - Other Gains and Losses (Details)
(http://auo.com/role/OtherGainsAndLossesDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfOtherGainsAndLossesAbstract (label)Abstractdurationauo:DisclosureOfOtherGainsAndLossesAbstract
2 Foreign exchange gains (losses), netConcept (Monetary)durationcreditifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
3 ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (verboseLabel)Concept (Monetary)durationcreditifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss
4 Gains (losses) on disposals of investments and financial assets, netConcept (Monetary)durationcreditifrs-full:GainsLossesOnDisposalsOfInvestments
5 Gains on disposals of property, plant and equipment, netConcept (Monetary)durationcreditifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
6 Impairment losses on assetsConcept (Monetary)durationdebitifrs-full:ImpairmentLoss
7 Litigation losses and othersConcept (Monetary)durationdebitifrs-full:LossesOnLitigationSettlements
8 ifrs-full:OtherGainsLosses (totalLabel)Concept (Monetary)durationcreditifrs-full:OtherGainsLosses

Model Structure
Network
251 - Disclosure - Finance Costs (Details)
(http://auo.com/role/FinanceCostsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinanceCostExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfFinanceCostExplanatoryAbstract
2 Interest expense on bank borrowingsConcept (Monetary)durationdebitifrs-full:InterestExpenseOnBorrowings
3 Interest expense on othersConcept (Monetary)durationdebitifrs-full:InterestExpenseOnOtherFinancialLiabilities
4 Finance costsConcept (Monetary)durationdebitifrs-full:FinanceCosts

Model Structure
Network
252 - Disclosure - Income Taxes (Details)
(http://auo.com/role/IncomeTaxesDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfIncomeTaxExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfIncomeTaxExplanatoryAbstract
2 Current income tax expense (benefit):Abstractdurationifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract
3 Current yearConcept (Monetary)durationdebitifrs-full:CurrentTaxExpenseIncome
4 Adjustment to prior years and othersConcept (Monetary)durationdebitifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod
5 Current tax expense (income) and adjustments for current tax of prior periodsConcept (Monetary)durationdebitifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
6 Deferred tax expense (benefit):Abstractdurationifrs-full:DeferredTaxExpenseIncomeAbstract
7 Temporary differencesConcept (Monetary)durationdebitifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
8 Investment tax credit and tax losses carryforwardsConcept (Monetary)durationcreditifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceDeferredTaxExpense
9 ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)Concept (Monetary)durationifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
10 ifrs-full:IncomeTaxExpenseContinuingOperations (verboseLabel)Concept (Monetary)durationdebitifrs-full:IncomeTaxExpenseContinuingOperations

Model Structure
Network
253 - Disclosure - Income Taxes (Details 1)
(http://auo.com/role/IncomeTaxesDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfIncomeTaxExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfIncomeTaxExplanatoryAbstract
2 Items that will never be reclassified to profit or loss:Abstractdurationifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossAbstract
3 Remeasurement of defined benefit obligationsConcept (Monetary)durationdebitifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss
4 Items that are or may be reclassified subsequently to profit or loss:Abstractdurationifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossAbstract
5 Foreign operations - foreign currency translation differencesConcept (Monetary)durationdebitifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss

Model Structure
Network
254 - Disclosure - Income Taxes (Details 2)
(http://auo.com/role/IncomeTaxesDetails2)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfIncomeTaxExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfIncomeTaxExplanatoryAbstract
2 Income tax expense at AUO’s statutory tax rate(Rate)Concept (Percent)durationifrs-full:ApplicableTaxRate
3 auo:TaxRateEffectOfDifferentSubsidiariesIncomeTaxRate (verboseLabel)Concept (Percent)durationauo:TaxRateEffectOfDifferentSubsidiariesIncomeTaxRate
4 auo:TaxRateEffectOfShareOfProfitEquityAccountedSubsidiaries (negatedTerseLabel)Concept (Percent)durationauo:TaxRateEffectOfShareOfProfitEquityAccountedSubsidiaries
5 Effect of changes in statutory income tax rate(Rate)Concept (Percent)durationifrs-full:TaxRateEffectFromChangeInTaxRate
6 auo:TaxRateEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss (verboseLabel)Concept (Percent)durationauo:TaxRateEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss
7 Net of non-taxable income and non-deductible expense(Rate)Concept (Percent)durationifrs-full:TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
8 auo:TaxRateEffectOfLossGainFromDomesticLongTermInvestment (verboseLabel)Concept (Percent)durationauo:TaxRateEffectOfLossGainFromDomesticLongTermInvestment
9 auo:TaxRateEffectOfUndistrbutedEarningsNet (verboseLabel)Concept (Percent)durationauo:TaxRateEffectOfUndistrbutedEarningsNet
10 Adjustments to prior year (Rate)Concept (Percent)durationifrs-full:TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods
11 Others(Rate)Concept (Percent)durationifrs-full:OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
12 Effective tax rate(Rate)Concept (Percent)durationifrs-full:AverageEffectiveTaxRate
13 Profit before income taxesConcept (Monetary)durationcreditifrs-full:AccountingProfit
14 Income tax expense at AUO’s statutory tax rateConcept (Monetary)durationdebitifrs-full:TaxExpenseIncomeAtApplicableTaxRate
15 auo:TaxEffectOfDifferentSubsidiariesIncomeTaxRate (verboseLabel)Concept (Monetary)durationdebitauo:TaxEffectOfDifferentSubsidiariesIncomeTaxRate
16 auo:TaxEffectOfShareOfProfitOfEquityAccountedSubsidiaries (negatedLabel)Concept (Monetary)durationcreditauo:TaxEffectOfShareOfProfitOfEquityAccountedSubsidiaries
17 Effect of changes in statutory income tax rateConcept (Monetary)durationdebitifrs-full:TaxEffectFromChangeInTaxRate
18 auo:TaxEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss (verboseLabel)Concept (Monetary)durationdebitauo:TaxEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss
19 Net of non-taxable income and non-deductible expenseConcept (Monetary)durationdebitifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
20 auo:TaxEffectOfLossGainFromDomesticLongTermInvestment (verboseLabel)Concept (Monetary)durationdebitauo:TaxEffectOfLossGainFromDomesticLongTermInvestment
21 auo:TaxEffectOfUndistributedEarningsNet (verboseLabel)Concept (Monetary)durationdebitauo:TaxEffectOfUndistributedEarningsNet
22 auo:TaxEffectOfAdjustmentsToPriorYear (verboseLabel)Concept (Monetary)durationdebitauo:TaxEffectOfAdjustmentsToPriorYear
23 OthersConcept (Monetary)durationdebitifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
24 Income tax expense (benefit)Concept (Monetary)durationdebitifrs-full:IncomeTaxExpenseContinuingOperations

Model Structure
Network
255 - Disclosure - Income Taxes (Details 3)
(http://auo.com/role/IncomeTaxesDetails3)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfIncomeTaxExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfIncomeTaxExplanatoryAbstract
2 Disclosure of income tax explanatory [Table]Tabledurationauo:DisclosureOfIncomeTaxExplanatoryTable
3 Temporary difference, unused tax losses and unused tax credits [axis]Axisdurationifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
4 Temporary difference, unused tax losses and unused tax credits [member]Memberdurationifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
5 Deferred tax assets [Member]Memberdurationauo:DeferredTaxAssetsMember
6 Deferred tax liabilities [Member]Memberdurationauo:DeferredTaxLiabilitiesMember
7 auo:DisclosureOfIncomeTaxExplanatoryLineItems (label)LineItemsdurationauo:DisclosureOfIncomeTaxExplanatoryLineItems
8 auo:DeferredTaxLiabilityAssetRelatedToInvestmentsCredits (verboseLabel)Concept (Monetary)instantcreditauo:DeferredTaxLiabilityAssetRelatedToInvestmentsCredits
9 auo:DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards (verboseLabel)Concept (Monetary)instantcreditauo:DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards
10 auo:DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses (verboseLabel)Concept (Monetary)instantcreditauo:DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses
11 auo:DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown (verboseLabel)Concept (Monetary)instantcreditauo:DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown
12 auo:DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod (verboseLabel)Concept (Monetary)instantcreditauo:DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod
13 auo:DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans (verboseLabel)Concept (Monetary)instantcreditauo:DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans
14 auo:DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences (verboseLabel)Concept (Monetary)instantcreditauo:DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences
15 auo:DeferredTaxLiabilityAssetRelatedToOthers (verboseLabel)Concept (Monetary)instantcreditauo:DeferredTaxLiabilityAssetRelatedToOthers
16 ifrs-full:DeferredTaxLiabilityAsset (totalLabel)Concept (Monetary)instantcreditifrs-full:DeferredTaxLiabilityAsset

Model Structure
Network
256 - Disclosure - Income Taxes (Details 4)
(http://auo.com/role/IncomeTaxesDetails4)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfIncomeTaxExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfIncomeTaxExplanatoryAbstract
2 Disclosure of income tax explanatory [Table]Tabledurationauo:DisclosureOfIncomeTaxExplanatoryTable
3 Temporary difference, unused tax losses and unused tax credits [axis]Axisdurationifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
4 Temporary difference, unused tax losses and unused tax credits [member]Memberdurationifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
5 Investment tax credits [Member]Memberdurationauo:InvestmentTaxCreditsMember
6 Tax losses carryforwards [Member]Memberdurationauo:TaxLossesCarryforwardsMember
7 Unrealized loss and expenses [Member]Memberdurationauo:UnrealizedLossAndExpensesMember
8 Inventories write-down [Member]Memberdurationauo:InventoriesWritedownMember
9 Foreign investment losses (gains) under the equity method [Member]Memberdurationauo:ForeignInvestmentLossesGainsUnderEquityMethodMember
10 Remeasurement of defined benefit plans [Member]Memberdurationauo:RemeasurementOfDefinedBenefitPlansMember
11 Foreign operations-foreign currency translation differences [Member]Memberdurationauo:ForeignOperationsForeignCurrencyTranslationDifferencesMember
12 Unrealized gains on available for sale financial assets [Member]Memberdurationauo:UnrealizedGainsOnAvailableForSaleFinancialAssetsMember
13 auo:OthersMember (label)Memberdurationauo:OthersMember
14 auo:DisclosureOfIncomeTaxExplanatoryLineItems (label)LineItemsdurationauo:DisclosureOfIncomeTaxExplanatoryLineItems
15 ifrs-full:DeferredTaxLiabilityAsset (periodStartLabel)Concept (Monetary)instantcreditifrs-full:DeferredTaxLiabilityAsset
16 Recognized in profit or lossConcept (Monetary)durationifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
17 Recognized in other comprehensive incomeConcept (Monetary)durationifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
18 auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (negatedTerseLabel)Concept (Monetary)durationdebitauo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers
19 Balance EndingConcept (Monetary)instantcreditifrs-full:DeferredTaxLiabilityAsset

Model Structure
Network
257 - Disclosure - Income Taxes (Details 5)
(http://auo.com/role/IncomeTaxesDetails5)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfIncomeTaxExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfIncomeTaxExplanatoryAbstract
2 ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (verboseLabel)Concept (Monetary)instantifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised
3 auo:GoodwillForWhichNoDeferredTaxAssetRecognised (verboseLabel)Concept (Monetary)instantdebitauo:GoodwillForWhichNoDeferredTaxAssetRecognised
4 auo:DifferenceInDepreciationExpenseForTaxAndFinancialPurposesForWhichNoDeferredTaxAssetRecognised (terseLabel)Concept (Monetary)instantdebitauo:DifferenceInDepreciationExpenseForTaxAndFinancialPurposesForWhichNoDeferredTaxAssetRecognised
5 auo:InventoriesWriteDownForWhichNoDeferredTaxAssetRecognised (verboseLabel)Concept (Monetary)instantdebitauo:InventoriesWriteDownForWhichNoDeferredTaxAssetRecognised
6 OthersConcept (Monetary)instantifrs-full:DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised
7 auo:TotalUnrecognizedDeferredTaxAssets (totalLabel)Concept (Monetary)instantdebitauo:TotalUnrecognizedDeferredTaxAssets

Model Structure
Network
258 - Disclosure - Income Taxes (Details 6)
(http://auo.com/role/IncomeTaxesDetails6)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfIncomeTaxExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfIncomeTaxExplanatoryAbstract
2 Disclosure of income tax explanatory [Table]Tabledurationauo:DisclosureOfIncomeTaxExplanatoryTable
3 Unused tax losses assessment year [Axis]Axisdurationauo:UnusedTaxLossesAssessmentYearAxis
4 Unused tax losses assessment year [Domain]Memberdurationauo:UnusedTaxLossesAssessmentYearDomain
5 2009 Unused tax losses carryforwards [Member]Memberdurationauo:UnusedTaxLossesCarryforwards2009Member
6 2010 Unused tax losses carryforwards [Member]Memberdurationauo:UnusedTaxLossesCarryforwards2010Member
7 2011 Unused tax losses carryforwards [Member]Memberdurationauo:UnusedTaxLossesCarryforwards2011Member
8 2012 Unused tax losses carryforwards [Member]Memberdurationauo:UnusedTaxLossesCarryforwards2012Member
9 2013 Unused tax losses carryforwards [Member]Memberdurationauo:UnusedTaxLossesCarryforwards2013Member
10 2014 Unused tax losses carryforwards [Member]Memberdurationauo:UnusedTaxLossesCarryforwards2014Member
11 2015 Unused tax losses carryforwards [Member]Memberdurationauo:UnusedTaxLossesCarryforwards2015Member
12 2016 Unused tax losses carryforwards [Member]Memberdurationauo:UnusedTaxLossesCarryforwards2016Member
13 2017 estimated Unused tax losses carryforwards [Member]Memberdurationauo:EstimatedUnusedTaxLossesCarryforwards2017Member
14 auo:DisclosureOfIncomeTaxExplanatoryLineItems (label)LineItemsdurationauo:DisclosureOfIncomeTaxExplanatoryLineItems
15 Unrecognized deferred tax assetsConcept (Monetary)instantifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised
16 Description of expiry date of deductible temporary differences, unused tax losses and unused tax creditsConcept (String)durationifrs-full:DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits

Model Structure
Network
259 - Disclosure - Income Taxes (Details Textual)
(http://auo.com/role/IncomeTaxesDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfIncomeTaxExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfIncomeTaxExplanatoryAbstract
2 Disclosure of income tax explanatory [Table]Tabledurationauo:DisclosureOfIncomeTaxExplanatoryTable
3 Subsidiaries [axis]Axisdurationifrs-full:SignificantInvestmentsInSubsidiariesAxis
4 Entity's total for subsidiaries [member]Memberdurationifrs-full:EntitysTotalForSubsidiariesMember
5 auo:AfpdPteLtdMember (label)Memberdurationauo:AfpdPteLtdMember
6 auo:AuoCrystalMalaysiaSdnBhdMember (label)Memberdurationauo:AuoCrystalMalaysiaSdnBhdMember
7 Temporary difference, unused tax losses and unused tax credits [axis]Axisdurationifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
8 Temporary difference, unused tax losses and unused tax credits [member]Memberdurationifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
9 Unused tax losses [member]Memberdurationifrs-full:UnusedTaxLossesMember
10 auo:DisclosureOfIncomeTaxExplanatoryLineItems (label)LineItemsdurationauo:DisclosureOfIncomeTaxExplanatoryLineItems
11 ifrs-full:UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised (label)Concept (Monetary)instantifrs-full:UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised
12 Temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements for which deferred tax liabilities have not been recognisedConcept (Monetary)instantifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures
13 auo:EstimatedAndActualCreditableRatiosForDistributionOfEarnings (label)Concept (Percent)durationauo:EstimatedAndActualCreditableRatiosForDistributionOfEarnings
14 ifrs-full:DeferredTaxAssets (label)Concept (Monetary)instantdebitifrs-full:DeferredTaxAssets
15 auo:BalanceOfImputationCreditAccountOfIntegratedIncomeTaxSystem (label)Concept (Monetary)instantcreditauo:BalanceOfImputationCreditAccountOfIntegratedIncomeTaxSystem
16 Tax benefit arising from previously unrecognised tax loss, tax credit or temporary difference of prior period used to reduce current tax expenseConcept (Monetary)durationcreditifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense

Model Structure
Network
260 - Disclosure - Earnings per Share (Details)
(http://auo.com/role/EarningsPerShareDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfEarningsPerShareAbstract (label)Abstractdurationauo:DisclosureOfEarningsPerShareAbstract
2 Profit attributable to AUO’s shareholdersConcept (Monetary)durationcreditifrs-full:ProfitLossAttributableToOwnersOfParent
3 ifrs-full:WeightedAverageShares (terseLabel)Concept (Shares)durationifrs-full:WeightedAverageShares
4 Basic earnings per share (In dollars per share)Concept (Per-Share)durationifrs-full:BasicEarningsLossPerShare

Model Structure
Network
261 - Disclosure - Earnings per Share (Details 1)
(http://auo.com/role/EarningsPerShareDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfEarningsPerShareAbstract (label)Abstractdurationauo:DisclosureOfEarningsPerShareAbstract
2 Profit attributable to AUO’s shareholdersConcept (Monetary)durationcreditifrs-full:ProfitLossAttributableToOwnersOfParent
3 auo:DilutiveEffectOfConvertibleBonds (verboseLabel)Concept (Monetary)durationcreditauo:DilutiveEffectOfConvertibleBonds
4 Profit used in the computation of diluted earnings per shareConcept (Monetary)durationcreditifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects
5 Weighted-average number of common shares outstanding during the year (including the effect of dilutive potential common stock):Abstractdurationifrs-full:WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract
6 Weighted-average number of common shares (basic)Concept (Shares)durationifrs-full:WeightedAverageShares
7 Effect of employee remuneration in stockConcept (Shares)durationifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
8 Effect of convertible bondsConcept (Shares)durationifrs-full:DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares
9 Weighted-average number of common shares (diluted)Concept (Shares)durationifrs-full:AdjustedWeightedAverageShares
10 Diluted earnings per share (In dollars per share)Concept (Per-Share)durationifrs-full:DilutedEarningsLossPerShare

Model Structure
Network
262 - Disclosure - Financial Instruments (Details)
(http://auo.com/role/FinancialInstrumentsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinancialInstrumentAbstract (label)Abstractdurationauo:DisclosureOfFinancialInstrumentAbstract
2 Disclosure of financial instrument [Table]Tabledurationauo:DisclosureOfFinancialInstrumentTable
3 Classes of financial assets [axis]Axisdurationifrs-full:ClassesOfFinancialAssetsAxis
4 Financial assets, class [member]Memberdurationifrs-full:FinancialAssetsMember
5 Foreign currency forward contracts [Member]Memberdurationauo:ForeignCurrencyForwardContractsAssetsMember
6 Available-for-sale financial assets - noncurrent [Member]Memberdurationifrs-full:FinancialAssetsAvailableforsaleCategoryMember
7 auo:LongTermReceivablesMember (label)Memberdurationauo:LongTermReceivablesMember
8 auo:RefundableDepositsMember (label)Memberdurationauo:RefundableDepositsMember
9 Types of financial liabilities [axis]Axisdurationifrs-full:TypesOfFinancialLiabilitiesAxis
10 Financial liabilities, type [member]Memberdurationifrs-full:FinancialLiabilitiesTypeMember
11 Financial liabilities measured at amortized cost [Member]Memberdurationauo:LongtermBorrowingsIncludingCurrentInstallmentsMember
12 Classes of financial liabilities [axis]Axisdurationifrs-full:ClassesOfFinancialLiabilitiesAxis
13 Financial liabilities, class [member]Memberdurationifrs-full:FinancialLiabilitiesMember
14 Foreign currency forwards contracts liabilities [Member]Memberdurationauo:ForeignCurrencyForwardsContractsLiabilitiesMember
15 Interest rate swap contracts liability [Member]Memberdurationauo:InterestRateSwapContractsLiabilityMember
16 Guarantee deposits received [Member]Memberdurationauo:GuaranteeDepositsLiabilityMember
17 Long-term borrowings (including current installments) [Member]Memberdurationauo:LongTermsBorrowingsMember
18 Categories of financial assets [axis]Axisdurationifrs-full:CategoriesOfFinancialAssetsAxis
19 Financial assets, category [member]Memberdurationifrs-full:FinancialAssetsCategoryMember
20 Financial assets at fair value through profit or loss [member]Memberdurationifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember
21 Loans and receivables [member]Memberdurationifrs-full:LoansAndReceivablesCategoryMember
22 Categories of financial liabilities [axis]Axisdurationifrs-full:CategoriesOfFinancialLiabilitiesAxis
23 Financial liabilities, category [member]Memberdurationifrs-full:FinancialLiabilitiesCategoryMember
24 Financial liabilities at fair value through profit or loss [member]Memberdurationifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
25 Derivatives financial liabilities for hedging [Member]Memberdurationauo:DerivativesFinancialLiabilitiesForHedgingMember
26 auo:DisclosureOfFinancialInstrumentLineItems (label)LineItemsdurationauo:DisclosureOfFinancialInstrumentLineItems
27 Financial assets, Carrying AmountConcept (Monetary)instantdebitifrs-full:FinancialAssets
28 Financial assets, Fair ValueConcept (Monetary)instantdebitifrs-full:FinancialAssetsAtFairValue
29 Financial lliabilities, Carrying AmountConcept (Monetary)instantcreditifrs-full:FinancialLiabilities
30 Financial liabilities, Fair ValueConcept (Monetary)instantcreditifrs-full:FinancialLiabilitiesAtFairValue

Model Structure
Network
263 - Disclosure - Financial Instruments (Details 1)
(http://auo.com/role/FinancialInstrumentsDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinancialInstrumentAbstract (label)Abstractdurationauo:DisclosureOfFinancialInstrumentAbstract
2 Disclosure of financial instrument [Table]Tabledurationauo:DisclosureOfFinancialInstrumentTable
3 Classes of financial assets [axis]Axisdurationifrs-full:ClassesOfFinancialAssetsAxis
4 Financial assets, class [member]Memberdurationifrs-full:FinancialAssetsMember
5 auo:LongTermReceivablesMember (label)Memberdurationauo:LongTermReceivablesMember
6 auo:ForeignCurrencyForwardContractsAssetsMember (verboseLabel)Memberdurationauo:ForeignCurrencyForwardContractsAssetsMember
7 Levels of fair value hierarchy [axis]Axisdurationifrs-full:LevelsOfFairValueHierarchyAxis
8 All levels of fair value hierarchy [member]Memberdurationifrs-full:AllLevelsOfFairValueHierarchyMember
9 Level 1 [member]Memberdurationifrs-full:Level1OfFairValueHierarchyMember
10 Level 2 [member]Memberdurationifrs-full:Level2OfFairValueHierarchyMember
11 Level 3 [member]Memberdurationifrs-full:Level3OfFairValueHierarchyMember
12 Categories of financial assets [axis]Axisdurationifrs-full:CategoriesOfFinancialAssetsAxis
13 Financial assets, category [member]Memberdurationifrs-full:FinancialAssetsCategoryMember
14 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember (verboseLabel)Memberdurationifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember
15 ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (terseLabel)Memberdurationifrs-full:FinancialAssetsAvailableforsaleCategoryMember
16 ifrs-full:LoansAndReceivablesCategoryMember (terseLabel)Memberdurationifrs-full:LoansAndReceivablesCategoryMember
17 Categories of financial liabilities [axis]Axisdurationifrs-full:CategoriesOfFinancialLiabilitiesAxis
18 Financial liabilities, category [member]Memberdurationifrs-full:FinancialLiabilitiesCategoryMember
19 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember (terseLabel)Memberdurationifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
20 Derivative financial liabilities for hedging [Member]Memberdurationauo:DerivativeFinancialLiabilitiesForHedgingMember
21 Classes of financial liabilities [axis]Axisdurationifrs-full:ClassesOfFinancialLiabilitiesAxis
22 Financial liabilities, class [member]Memberdurationifrs-full:FinancialLiabilitiesMember
23 auo:InterestRateSwapContractsLiabilityMember (verboseLabel)Memberdurationauo:InterestRateSwapContractsLiabilityMember
24 auo:ForeignCurrencyForwardsContractsLiabilitiesMember (verboseLabel)Memberdurationauo:ForeignCurrencyForwardsContractsLiabilitiesMember
25 auo:DisclosureOfFinancialInstrumentLineItems (label)LineItemsdurationauo:DisclosureOfFinancialInstrumentLineItems
26 Disclosure of financial assets [abstract]Abstractdurationifrs-full:DisclosureOfFinancialAssetsAbstract
27 ifrs-full:FinancialAssetsAtFairValue (label)Concept (Monetary)instantdebitifrs-full:FinancialAssetsAtFairValue
28 Disclosure of financial liabilities [abstract]Abstractdurationifrs-full:DisclosureOfFinancialLiabilitiesAbstract
29 ifrs-full:FinancialLiabilitiesAtFairValue (label)Concept (Monetary)instantcreditifrs-full:FinancialLiabilitiesAtFairValue

Model Structure
Network
264 - Disclosure - Financial Instruments (Details 2)
(http://auo.com/role/FinancialInstrumentsDetails2)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinancialInstrumentAbstract (label)Abstractdurationauo:DisclosureOfFinancialInstrumentAbstract
2 Disclosure of financial instrument [Table]Tabledurationauo:DisclosureOfFinancialInstrumentTable
3 Categories of financial assets [axis]Axisdurationifrs-full:CategoriesOfFinancialAssetsAxis
4 Financial assets, category [member]Memberdurationifrs-full:FinancialAssetsCategoryMember
5 ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (definitionGuidance)Memberdurationifrs-full:FinancialAssetsAvailableforsaleCategoryMember
6 auo:DisclosureOfFinancialInstrumentLineItems (label)LineItemsdurationauo:DisclosureOfFinancialInstrumentLineItems
7 ifrs-full:FinancialAssetsReclassifiedOutOfAvailableforsaleFinancialAssetsAtFairValue (periodStartLabel)Concept (Monetary)instantdebitifrs-full:FinancialAssetsReclassifiedOutOfAvailableforsaleFinancialAssetsAtFairValue
8 Net realized/unrealized gains (losses) included in:Abstractdurationifrs-full:ChangesInFairValueMeasurementAssetsAbstract
9 Profit or lossConcept (Monetary)durationifrs-full:GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets
10 Other comprehensive incomeConcept (Monetary)durationifrs-full:GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets
11 PurchasesConcept (Monetary)durationdebitifrs-full:PurchasesFairValueMeasurementAssets
12 Transfer inConcept (Monetary)durationdebitifrs-full:TransfersIntoLevel3OfFairValueHierarchyAssets
13 DisposalsConcept (Monetary)durationcreditifrs-full:SalesFairValueMeasurementAssets
14 auo:EffectOfChangeInExchangeRateFairValueMeasurementAssets (verboseLabel)Concept (Monetary)durationdebitauo:EffectOfChangeInExchangeRateFairValueMeasurementAssets
15 Balance at the end of the yearConcept (Monetary)instantdebitifrs-full:FinancialAssetsReclassifiedOutOfAvailableforsaleFinancialAssetsAtFairValue

Model Structure
Network
265 - Disclosure - Financial Instruments (Details Textual)
(http://auo.com/role/FinancialInstrumentsDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinancialInstrumentAbstract (label)Abstractdurationauo:DisclosureOfFinancialInstrumentAbstract
2 Disclosure of financial instrument [Table]Tabledurationauo:DisclosureOfFinancialInstrumentTable
3 Categories of financial assets [axis]Axisdurationifrs-full:CategoriesOfFinancialAssetsAxis
4 Financial assets, category [member]Memberdurationifrs-full:FinancialAssetsCategoryMember
5 auo:DisclosureOfFinancialInstrumentLineItems (label)LineItemsdurationauo:DisclosureOfFinancialInstrumentLineItems
6 Gains (losses) recognised in profit or loss attributable to change in unrealised gains or losses for assets held at end of period, fair value measurementConcept (Monetary)durationcreditifrs-full:GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement

Model Structure
Network
266 - Disclosure - Financial Risk Management (Details)
(http://auo.com/role/FinancialRiskManagementDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinancialRiskManagementExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfFinancialRiskManagementExplanatoryAbstract
2 Disclosure Of Financial Risk Management Explanatory [Table]Tabledurationauo:DisclosureOfFinancialRiskManagementExplanatoryTable
3 Classes of financial instruments [axis]Axisdurationifrs-full:ClassesOfFinancialInstrumentsAxis
4 Financial instruments, class [member]Memberdurationifrs-full:ClassesOfFinancialInstrumentsMember
5 Short-term borrowings [Member]Memberdurationauo:ShortTermBorrowingsMember
6 Long-term borrowings (including current installments) [Member]Memberdurationauo:LongTermBorrowingMember
7 Refundable deposits [Member]Memberdurationauo:RefundableDepositsMember
8 Foreign currency forward contracts-inflows [Member]Memberdurationauo:ForeignCurrencyForwardContractsInflowsMember
9 Foreign currency forward contracts-outflows [Member]Memberdurationauo:ForeignCurrencyForwardContractsOutflowsMember
10 Interest rate swap contracts [Member]Memberdurationauo:InterestRateSwapContractsMember
11 Maturity [axis]Axisdurationifrs-full:MaturityAxis
12 Aggregated time bands [member]Memberdurationifrs-full:AggregatedTimeBandsMember
13 ifrs-full:NotLaterThanOneYearMember (label)Memberdurationifrs-full:NotLaterThanOneYearMember
14 ifrs-full:LaterThanFiveYearsMember (label)Memberdurationifrs-full:LaterThanFiveYearsMember
15 Later than one year and not later than three years [member]Memberdurationifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
16 Later than three years and not later than five years [member]Memberdurationifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember
17 auo:DisclosureOfFinancialsRiskManagementExplanatoryLineItems (verboseLabel)LineItemsdurationauo:DisclosureOfFinancialsRiskManagementExplanatoryLineItems
18 Non-derivative financial liabilitiesAbstractdurationifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesAbstract
19 Non-derivative financial liabilities, Contractual cash flowsConcept (Monetary)instantcreditifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
20 Financial liabilities and financial instrumentsAbstractdurationifrs-full:DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesAbstract
21 Derivative financial liabilities, Contractual cash flowsConcept (Monetary)instantcreditifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows
22 auo:FinancialLiabilitiesUndiscountedCashFlows (terseLabel)Concept (Monetary)instantcreditauo:FinancialLiabilitiesUndiscountedCashFlows

Model Structure
Network
267 - Disclosure - Financial Risk Management (Details 1)
(http://auo.com/role/FinancialRiskManagementDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinancialRiskManagementExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfFinancialRiskManagementExplanatoryAbstract
2 Disclosure Of Financial Risk Management Explanatory [Table]Tabledurationauo:DisclosureOfFinancialRiskManagementExplanatoryTable
3 Hedging instruments [axis]Axisdurationifrs-full:HedgingInstrumentsAxis
4 Hedging instruments [member]Memberdurationifrs-full:HedgingInstrumentsMember
5 Monetary items [Member]Memberdurationauo:HedgingMonetaryItemsMember
6 Nonmonetary items [Member]Memberdurationauo:HedgingNonmonetaryItemsMember
7 Currencies [Axis]Axisdurationauo:CurrenciesAxis
8 Currencies [Domain]Memberdurationauo:CurrenciesDomain
9 USD currency [Member]Memberdurationauo:UsdCurrencyMember
10 JPY currency [Member]Memberdurationauo:JpyCurrencyMember
11 EUR currency [Member]Memberdurationauo:EurCurrencyMember
12 RMB currency [Member]Memberdurationauo:RmbCurrencyMember
13 auo:DisclosureOfFinancialsRiskManagementExplanatoryLineItems (verboseLabel)LineItemsdurationauo:DisclosureOfFinancialsRiskManagementExplanatoryLineItems
14 Financial assets and financial liabilitiesAbstractdurationauo:FinancialAssetsAndFinancialLiabilitiesAbstract
15 auo:FinancialAssetsAmountDenominatedInForeignCurrency (verboseLabel)Concept (Monetary)instantdebitauo:FinancialAssetsAmountDenominatedInForeignCurrency
16 Exchange rateConcept (Decimal)instantifrs-full:ClosingForeignExchangeRate
17 auo:FinancialAssetsCarryingAmount (verboseLabel)Concept (Monetary)instantdebitauo:FinancialAssetsCarryingAmount
18 auo:FinancialLiabilitiesAmountDenominatedInForeignCurrency (verboseLabel)Concept (Monetary)instantdebitauo:FinancialLiabilitiesAmountDenominatedInForeignCurrency
19 auo:FinancialLiabilitiesCarryingAmount (label)Concept (Monetary)instantdebitauo:FinancialLiabilitiesCarryingAmount

Model Structure
Network
268 - Disclosure - Financial Risk Management (Details 2)
(http://auo.com/role/FinancialRiskManagementDetails2)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinancialRiskManagementExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfFinancialRiskManagementExplanatoryAbstract
2 Statement [Table]Tabledurationus-gaap:StatementTable
3 us-gaap:StatementClassOfStockAxis (label)Axisdurationus-gaap:StatementClassOfStockAxis
4 Class of Stock [Domain]Memberdurationus-gaap:ClassOfStockDomain
5 Sensitivity Analysis [Axis]Axisdurationauo:SensitivityAnalysisAxis
6 Sensitivity Analysis [Domain]Memberdurationauo:SensitivityAnalysisDomain
7 Sensitivity analysis of foreign currency risk [Member]Memberdurationauo:SensitivityAnalysisOfForeignCurrencyRiskMember
8 Statement [Line Items]LineItemsdurationus-gaap:StatementLineItems
9 auo:IncreaseInNetProfitLossBeforeTaxDueToDepreciationReportingCurrencyRate (verboseLabel)Concept (Monetary)durationcreditauo:IncreaseInNetProfitLossBeforeTaxDueToDepreciationReportingCurrencyRate
10 auo:IncreaseInNetProfitLossBeforeTaxDueToAppreciationReportingCurrencyRate (negatedTerseLabel)Concept (Monetary)durationcreditauo:IncreaseInNetProfitLossBeforeTaxDueToAppreciationReportingCurrencyRate

Model Structure
Network
269 - Disclosure - Financial Risk Management (Details Textual)
(http://auo.com/role/FinancialRiskManagementDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfFinancialRiskManagementExplanatoryAbstract (label)Abstractdurationauo:DisclosureOfFinancialRiskManagementExplanatoryAbstract
2 Disclosure Of Financial Risk Management Explanatory [Table]Tabledurationauo:DisclosureOfFinancialRiskManagementExplanatoryTable
3 Customer [Axis]Axisdurationifrs-full:MajorCustomersAxis
4 Customers [member]Memberdurationifrs-full:MajorCustomersMember
5 Major customers revenue [Member]Memberdurationauo:MajorCustomersRevenueMember
6 Types of interest rates [axis]Axisdurationifrs-full:TypesOfInterestRatesAxis
7 Interest rate types [member]Memberdurationifrs-full:InterestRateTypesMember
8 Floating interest rate [member]Memberdurationifrs-full:FloatingInterestRateMember
9 auo:DisclosureOfFinancialsRiskManagementExplanatoryLineItems (verboseLabel)LineItemsdurationauo:DisclosureOfFinancialsRiskManagementExplanatoryLineItems
10 auo:DepreciationOrAppreciationRateOfReportingCurrency (label)Concept (Percent)durationauo:DepreciationOrAppreciationRateOfReportingCurrency
11 Net current assets:Concept (Monetary)instantdebitifrs-full:CurrentAssetsLiabilities
12 ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss (label)Concept (Monetary)durationcreditifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
13 Borrowings, adjustment to interest rate basisConcept (Percent)instantifrs-full:BorrowingsAdjustmentToInterestRateBasis
14 auo:DecreaseOrIncreaseInNetProfitLossBeforeTax (verboseLabel)Concept (Monetary)durationdebitauo:DecreaseOrIncreaseInNetProfitLossBeforeTax
15 Percentage of entity's revenueConcept (Percent)durationifrs-full:PercentageOfEntitysRevenue

Model Structure
Network
270 - Disclosure - Capital Management (Details)
(http://auo.com/role/CapitalManagementDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1Disclosure of objectives, policies and processes for managing capital [abstract]Abstractdurationifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract
2 Total liabilitiesConcept (Monetary)instantcreditifrs-full:Liabilities
3 ifrs-full:Equity (verboseLabel)Concept (Monetary)instantcreditifrs-full:Equity
4 auo:InterestBearingDebtInstrumentsHeld (verboseLabel)Concept (Monetary)instantcreditauo:InterestBearingDebtInstrumentsHeld
5 auo:DebtToEquityRatio (terseLabel)Concept (Percent)durationauo:DebtToEquityRatio
6 auo:DescriptionOfConversionOfInterestBearingDebtToEquity (terseLabel)Concept (Percent)durationauo:DescriptionOfConversionOfInterestBearingDebtToEquity
7 auo:DescriptionOfConversionOfNetDebtToEquity (verboseLabel)Concept (Percent)durationauo:DescriptionOfConversionOfNetDebtToEquity

Model Structure
Network
271 - Disclosure - Related-party Transactions (Details)
(http://auo.com/role/RelatedpartyTransactionsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRelatedPartyTransactionsAbstract (label)Abstractdurationauo:DisclosureOfRelatedPartyTransactionsAbstract
2 Short-term employee benefitsConcept (Monetary)durationdebitifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
3 Post-employment benefitsConcept (Monetary)durationdebitifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
4 Key management personnel compensationConcept (Monetary)durationdebitifrs-full:KeyManagementPersonnelCompensation

Model Structure
Network
272 - Disclosure - Related-party Transactions (Details 1)
(http://auo.com/role/RelatedpartyTransactionsDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRelatedPartyTransactionsAbstract (label)Abstractdurationauo:DisclosureOfRelatedPartyTransactionsAbstract
2 Statement [Table]Tabledurationus-gaap:StatementTable
3 us-gaap:StatementClassOfStockAxis (label)Axisdurationus-gaap:StatementClassOfStockAxis
4 Class of Stock [Domain]Memberdurationus-gaap:ClassOfStockDomain
5 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
6 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
7 Associates [member]Memberdurationifrs-full:AssociatesMember
8 ifrs-full:JointVenturesWhereEntityIsVenturerMember (terseLabel)Memberdurationifrs-full:JointVenturesWhereEntityIsVenturerMember
9 ifrs-full:OtherRelatedPartiesMember (terseLabel)Memberdurationifrs-full:OtherRelatedPartiesMember
10 Statement [Line Items]LineItemsdurationus-gaap:StatementLineItems
11 SalesConcept (Monetary)durationcreditifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions
12 Accounts receivable from related partiesConcept (Monetary)instantdebitifrs-full:AmountsReceivableRelatedPartyTransactions

Model Structure
Network
273 - Disclosure - Related-party Transactions (Details 2)
(http://auo.com/role/RelatedpartyTransactionsDetails2)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRelatedPartyTransactionsAbstract (label)Abstractdurationauo:DisclosureOfRelatedPartyTransactionsAbstract
2 Statement [Table]Tabledurationus-gaap:StatementTable
3 us-gaap:StatementClassOfStockAxis (label)Axisdurationus-gaap:StatementClassOfStockAxis
4 Class of Stock [Domain]Memberdurationus-gaap:ClassOfStockDomain
5 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
6 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
7 Associates [member]Memberdurationifrs-full:AssociatesMember
8 ifrs-full:JointVenturesWhereEntityIsVenturerMember (terseLabel)Memberdurationifrs-full:JointVenturesWhereEntityIsVenturerMember
9 ifrs-full:OtherRelatedPartiesMember (verboseLabel)Memberdurationifrs-full:OtherRelatedPartiesMember
10 Statement [Line Items]LineItemsdurationus-gaap:StatementLineItems
11 PurchasesConcept (Monetary)durationdebitifrs-full:PurchasesOfGoodsRelatedPartyTransactions
12 Accounts payable to related partiesConcept (Monetary)instantcreditifrs-full:TradeAndOtherCurrentPayablesToRelatedParties

Model Structure
Network
274 - Disclosure - Related-party Transactions (Details 3)
(http://auo.com/role/RelatedpartyTransactionsDetails3)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRelatedPartyTransactionsAbstract (label)Abstractdurationauo:DisclosureOfRelatedPartyTransactionsAbstract
2 Statement [Table]Tabledurationus-gaap:StatementTable
3 us-gaap:StatementClassOfStockAxis (label)Axisdurationus-gaap:StatementClassOfStockAxis
4 Class of Stock [Domain]Memberdurationus-gaap:ClassOfStockDomain
5 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
6 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
7 Associates [member]Memberdurationifrs-full:AssociatesMember
8 ifrs-full:OtherRelatedPartiesMember (terseLabel)Memberdurationifrs-full:OtherRelatedPartiesMember
9 Statement [Line Items]LineItemsdurationus-gaap:StatementLineItems
10 Acquisition of property, plant and equipmentConcept (Monetary)durationdebitifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions

Model Structure
Network
275 - Disclosure - Related-party Transactions (Details 4)
(http://auo.com/role/RelatedpartyTransactionsDetails4)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRelatedPartyTransactionsAbstract (label)Abstractdurationauo:DisclosureOfRelatedPartyTransactionsAbstract
2 Statement [Table]Tabledurationus-gaap:StatementTable
3 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
4 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
5 Associates [member]Memberdurationifrs-full:AssociatesMember
6 ifrs-full:OtherRelatedPartiesMember (verboseLabel)Memberdurationifrs-full:OtherRelatedPartiesMember
7 ifrs-full:JointVenturesWhereEntityIsVenturerMember (terseLabel)Memberdurationifrs-full:JointVenturesWhereEntityIsVenturerMember
8 Statement [Line Items]LineItemsdurationus-gaap:StatementLineItems
9 Proceeds from disposal of property, plant and equipment and othersConcept (Monetary)durationdebitifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
10 auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (verboseLabel)Concept (Monetary)durationcreditauo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers

Model Structure
Network
276 - Disclosure - Related-party Transactions (Details 5)
(http://auo.com/role/RelatedpartyTransactionsDetails5)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRelatedPartyTransactionsAbstract (label)Abstractdurationauo:DisclosureOfRelatedPartyTransactionsAbstract
2 Statement [Table]Tabledurationus-gaap:StatementTable
3 us-gaap:StatementClassOfStockAxis (label)Axisdurationus-gaap:StatementClassOfStockAxis
4 Class of Stock [Domain]Memberdurationus-gaap:ClassOfStockDomain
5 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
6 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
7 Associates [member]Memberdurationifrs-full:AssociatesMember
8 ifrs-full:OtherRelatedPartiesMember (terseLabel)Memberdurationifrs-full:OtherRelatedPartiesMember
9 Statement [Line Items]LineItemsdurationus-gaap:StatementLineItems
10 Other receivables due from related partiesConcept (Monetary)instantdebitifrs-full:TradeAndOtherReceivablesDueFromRelatedParties

Model Structure
Network
277 - Disclosure - Related-party Transactions (Details 6)
(http://auo.com/role/RelatedpartyTransactionsDetails6)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRelatedPartyTransactionsAbstract (label)Abstractdurationauo:DisclosureOfRelatedPartyTransactionsAbstract
2 Statement [Table]Tabledurationus-gaap:StatementTable
3 us-gaap:StatementClassOfStockAxis (label)Axisdurationus-gaap:StatementClassOfStockAxis
4 Class of Stock [Domain]Memberdurationus-gaap:ClassOfStockDomain
5 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
6 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
7 Associates [member]Memberdurationifrs-full:AssociatesMember
8 ifrs-full:JointVenturesWhereEntityIsVenturerMember (terseLabel)Memberdurationifrs-full:JointVenturesWhereEntityIsVenturerMember
9 ifrs-full:OtherRelatedPartiesMember (terseLabel)Memberdurationifrs-full:OtherRelatedPartiesMember
10 Statement [Line Items]LineItemsdurationus-gaap:StatementLineItems
11 auo:OtherPayablesDueToRelatedParties (terseLabel)Concept (Monetary)instantcreditauo:OtherPayablesDueToRelatedParties

Model Structure
Network
278 - Disclosure - Related-party Transactions (Details 7)
(http://auo.com/role/RelatedpartyTransactionsDetails7)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRelatedPartyTransactionsAbstract (label)Abstractdurationauo:DisclosureOfRelatedPartyTransactionsAbstract
2 Statement [Table]Tabledurationus-gaap:StatementTable
3 us-gaap:StatementClassOfStockAxis (label)Axisdurationus-gaap:StatementClassOfStockAxis
4 Class of Stock [Domain]Memberdurationus-gaap:ClassOfStockDomain
5 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
6 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
7 Associates [member]Memberdurationifrs-full:AssociatesMember
8 ifrs-full:JointVenturesWhereEntityIsVenturerMember (presentationGuidance)Memberdurationifrs-full:JointVenturesWhereEntityIsVenturerMember
9 ifrs-full:OtherRelatedPartiesMember (definitionGuidance)Memberdurationifrs-full:OtherRelatedPartiesMember
10 Statement [Line Items]LineItemsdurationus-gaap:StatementLineItems
11 auo:RentalIncomeRelatedParty (label)Concept (Monetary)durationcreditauo:RentalIncomeRelatedParty

Model Structure
Network
279 - Disclosure - Related-party Transactions (Details 8)
(http://auo.com/role/RelatedpartyTransactionsDetails8)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRelatedPartyTransactionsAbstract (label)Abstractdurationauo:DisclosureOfRelatedPartyTransactionsAbstract
2 Statement [Table]Tabledurationus-gaap:StatementTable
3 us-gaap:StatementClassOfStockAxis (label)Axisdurationus-gaap:StatementClassOfStockAxis
4 Class of Stock [Domain]Memberdurationus-gaap:ClassOfStockDomain
5 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
6 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
7 Associates [member]Memberdurationifrs-full:AssociatesMember
8 ifrs-full:JointVenturesWhereEntityIsVenturerMember (exampleGuidance)Memberdurationifrs-full:JointVenturesWhereEntityIsVenturerMember
9 Others [member]Memberdurationifrs-full:OtherRelatedPartiesMember
10 Statement [Line Items]LineItemsdurationus-gaap:StatementLineItems
11 Administration and other incomeConcept (Monetary)durationcreditifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions

Model Structure
Network
280 - Disclosure - Related-party Transactions (Details 9)
(http://auo.com/role/RelatedpartyTransactionsDetails9)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRelatedPartyTransactionsAbstract (label)Abstractdurationauo:DisclosureOfRelatedPartyTransactionsAbstract
2 Statement [Table]Tabledurationus-gaap:StatementTable
3 us-gaap:StatementClassOfStockAxis (label)Axisdurationus-gaap:StatementClassOfStockAxis
4 Class of Stock [Domain]Memberdurationus-gaap:ClassOfStockDomain
5 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
6 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
7 Associates [member]Memberdurationifrs-full:AssociatesMember
8 ifrs-full:OtherRelatedPartiesMember (terseLabel)Memberdurationifrs-full:OtherRelatedPartiesMember
9 Joint ventures [member]Memberdurationifrs-full:JointVenturesWhereEntityIsVenturerMember
10 Statement [Line Items]LineItemsdurationus-gaap:StatementLineItems
11 auo:RentalAndOtherExpensesRelatedPartyTransactions (terseLabel)Concept (Monetary)durationdebitauo:RentalAndOtherExpensesRelatedPartyTransactions

Model Structure
Network
281 - Disclosure - Related-party Transactions (Details Textual)
(http://auo.com/role/RelatedpartyTransactionsDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfRelatedPartyTransactionsAbstract (label)Abstractdurationauo:DisclosureOfRelatedPartyTransactionsAbstract
2 Statement [Table]Tabledurationus-gaap:StatementTable
3 us-gaap:StatementClassOfStockAxis (label)Axisdurationus-gaap:StatementClassOfStockAxis
4 Class of Stock [Domain]Memberdurationus-gaap:ClassOfStockDomain
5 Categories of related parties [axis]Axisdurationifrs-full:CategoriesOfRelatedPartiesAxis
6 Entity's total for related parties [member]Memberdurationifrs-full:EntitysTotalForRelatedPartiesMember
7 Related parties [member]Memberdurationifrs-full:RelatedPartiesMember
8 Collection terms for sales [member]Memberdurationauo:CollectionTermsForSalesMember
9 Payment terms for purchases [member]Memberdurationauo:PaymentTermsForPurchasesMember
10 Collection terms for leasing [Member]Memberdurationauo:CollectionTermsForLeasingMember
11 Range [Axis]Axisdurationifrs-full:RangeAxis
12 Ranges [member]Memberdurationifrs-full:RangesMember
13 Bottom of range [member]Memberdurationifrs-full:BottomOfRangeMember
14 Top of range [member]Memberdurationifrs-full:TopOfRangeMember
15 Statement [Line Items]LineItemsdurationus-gaap:StatementLineItems
16 ifrs-full:DividendsReceived (label)Concept (Monetary)durationdebitifrs-full:DividendsReceived
17 Explanation of terms and conditions of outstanding balances for related party transactionConcept (String)durationifrs-full:ExplanationOfTermsAndConditionsOfOutstandingBalancesForRelatedPartyTransaction

Model Structure
Network
282 - Disclosure - Pledged Assets (Details)
(http://auo.com/role/PledgedAssetsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfPledgedAssetsAbstract (label)Abstractdurationauo:DisclosureOfPledgedAssetsAbstract
2 Disclosure of Pledged Assets [Table]Tabledurationauo:DisclosureOfPledgedAssetsTable
3 Categories of financial assets [axis]Axisdurationifrs-full:CategoriesOfFinancialAssetsAxis
4 Financial assets, category [member]Memberdurationifrs-full:FinancialAssetsCategoryMember
5 Restricted cash in banks [member]Memberdurationauo:RestrictedCashInBanksMember
6 Classes of property, plant and equipment [axis]Axisdurationifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
7 Property, Plant and Equipment [Member]Memberdurationifrs-full:PropertyPlantAndEquipmentMember
8 Land and building [member]Memberdurationifrs-full:LandAndBuildingsMember
9 Machinery, equipment and prepayments for equipment [Member]Memberdurationifrs-full:MachineryMember
10 Disclosure of Pledged Assets [Line Items]LineItemsdurationauo:DisclosureOfPledgedAssetsLineItems
11 Assets pledged as collateral for liabilities or contingent liabilitiesConcept (Monetary)instantdebitifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities

Model Structure
Network
283 - Disclosure - Contingent Liabilities and Commitments (Details)
(http://auo.com/role/ContingentLiabilitiesAndCommitmentsDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfContingentLiabilitiesAndCommitmentsAbstract (label)Abstractdurationauo:DisclosureOfContingentLiabilitiesAndCommitmentsAbstract
2 Disclosure of Contingent Liabilities and Commitments [Table]Tabledurationauo:DisclosureOfContingentLiabilitiesAndCommitmentsTable
3 Borrowings by name [axis]Axisdurationifrs-full:BorrowingsByNameAxis
4 Borrowings by name [member]Memberdurationifrs-full:BorrowingsByNameMember
5 Disclosure of Contingent Liabilities and Commitments [Line Items]LineItemsdurationauo:DisclosureOfContingentLiabilitiesAndCommitmentsLineItems
6 auo:LettersOfCredit (label)Concept (Monetary)instantcreditauo:LettersOfCredit

Model Structure
Network
284 - Disclosure - Contingent Liabilities and Commitments (Details Textual)
(http://auo.com/role/ContingentLiabilitiesAndCommitmentsDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfContingentLiabilitiesAndCommitmentsAbstract (label)Abstractdurationauo:DisclosureOfContingentLiabilitiesAndCommitmentsAbstract
2 Disclosure of Contingent Liabilities and Commitments [Table]Tabledurationauo:DisclosureOfContingentLiabilitiesAndCommitmentsTable
3 Subsidiaries [axis]Axisdurationifrs-full:SignificantInvestmentsInSubsidiariesAxis
4 Entity's total for subsidiaries [member]Memberdurationifrs-full:EntitysTotalForSubsidiariesMember
5 SunPower Technology, Ltd [member]Memberdurationauo:SunpowerTechnologyLtdMember
6 Disclosure of Contingent Liabilities and Commitments [Line Items]LineItemsdurationauo:DisclosureOfContingentLiabilitiesAndCommitmentsLineItems
7 Contractual commitments for acquisition of property, plant and equipmentConcept (Monetary)instantcreditifrs-full:ContractualCommitmentsForAcquisitionOfPropertyPlantAndEquipment
8 auo:PaymentsForSettlement (label)Concept (Monetary)durationcreditauo:PaymentsForSettlement
9 auo:ConsiderationTransferredFromSalesOfInterestsInJointVentures (label)Concept (Monetary)durationdebitauo:ConsiderationTransferredFromSalesOfInterestsInJointVentures
10 Legal proceedings provisionConcept (Monetary)instantcreditifrs-full:LegalProceedingsProvision

Model Structure
Network
285 - Disclosure - Segment, Geographic and Revenue Information (Details)
(http://auo.com/role/SegmentGeographicAndRevenueInformationDetails)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSegmentGeographicAndRevenueInformationAbstract (label)Abstractdurationauo:DisclosureOfSegmentGeographicAndRevenueInformationAbstract
2 Disclosure Of Segment, Geographic and Revenue Information [Table]Tabledurationauo:DisclosureOfSegmentGeographicAndRevenueInformationTable
3 Statement Business Segment [axis]Axisdurationauo:StatementBusinessSegmentAxis
4 Statement Business Segment [Domain]Memberdurationauo:StatementBusinessSegmentDomain
5 Display segment [member]Memberdurationauo:DisplaySegmentMember
6 Solar segment [member]Memberdurationauo:SolarSegmentMember
7 Segment consolidation items [axis]Axisdurationifrs-full:SegmentConsolidationItemsAxis
8 Entity's total for segment consolidation items [member]Memberdurationifrs-full:EntitysTotalForSegmentConsolidationItemsMember
9 Disclosure of Segment, Geographic and Revenue Information [Line Items]LineItemsdurationauo:DisclosureOfSegmentGeographicAndRevenueInformationLineItems
10 Net revenue from external customersConcept (Monetary)durationcreditifrs-full:Revenue
11 Depreciation and amortizationConcept (Monetary)durationdebitifrs-full:DepreciationAndAmortisationExpense
12 Inventory write-downConcept (Monetary)durationdebitifrs-full:WritedownsReversalsOfInventories
13 Segment profit (loss)Concept (Monetary)durationcreditifrs-full:ProfitLossFromOperatingActivities
14 ifrs-full:OtherIncome (label)Concept (Monetary)durationcreditifrs-full:OtherIncome
15 Other gains and lossesConcept (Monetary)durationcreditifrs-full:OtherGainsLosses
16 ifrs-full:FinanceCosts (negatedLabel)Concept (Monetary)durationdebitifrs-full:FinanceCosts
17 Share of profit of equity-accounted investeesConcept (Monetary)durationcreditifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
18 Consolidated profit before income taxConcept (Monetary)durationcreditifrs-full:ProfitLossBeforeTax

Model Structure
Network
286 - Disclosure - Segment, Geographic and Revenue Information (Details 1)
(http://auo.com/role/SegmentGeographicAndRevenueInformationDetails1)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSegmentGeographicAndRevenueInformationAbstract (label)Abstractdurationauo:DisclosureOfSegmentGeographicAndRevenueInformationAbstract
2 Disclosure Of Segment, Geographic and Revenue Information [Table]Tabledurationauo:DisclosureOfSegmentGeographicAndRevenueInformationTable
3 Geographical areas [axis]Axisdurationifrs-full:GeographicalAreasAxis
4 Geographical areas [member]Memberdurationifrs-full:GeographicalAreasMember
5 Taiwan [member]Memberdurationauo:TaiwanMember
6 Japan [member]Memberdurationauo:JapanMember
7 Singapore [member]Memberdurationauo:SingaporeMember
8 Others [member]Memberdurationauo:OthersMember
9 PRC [member]Memberdurationauo:PrcMember
10 Disclosure of Segment, Geographic and Revenue Information [Line Items]LineItemsdurationauo:DisclosureOfSegmentGeographicAndRevenueInformationLineItems
11 ifrs-full:Revenue (label)Concept (Monetary)durationcreditifrs-full:Revenue
12 auo:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssets (label)Concept (Monetary)instantdebitauo:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssets

Model Structure
Network
287 - Disclosure - Segment, Geographic and Revenue Information (Details 2)
(http://auo.com/role/SegmentGeographicAndRevenueInformationDetails2)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSegmentGeographicAndRevenueInformationAbstract (label)Abstractdurationauo:DisclosureOfSegmentGeographicAndRevenueInformationAbstract
2 Disclosure Of Segment, Geographic and Revenue Information [Table]Tabledurationauo:DisclosureOfSegmentGeographicAndRevenueInformationTable
3 Customer [Axis]Axisdurationifrs-full:MajorCustomersAxis
4 Customers [member]Memberdurationifrs-full:MajorCustomersMember
5 Revenue Customer [Axis]Axisdurationauo:RevenueCustomerAxis
6 Revenue Customer [Domain]Memberdurationauo:RevenueCustomerDomain
7 Customer A [Member]Memberdurationauo:MajorCustomerMember
8 Disclosure of Segment, Geographic and Revenue Information [Line Items]LineItemsdurationauo:DisclosureOfSegmentGeographicAndRevenueInformationLineItems
9 ifrs-full:Revenue (label)Concept (Monetary)durationcreditifrs-full:Revenue
10 auo:PercentageOfConsolidatedNetRevenue (label)Concept (Percent)durationauo:PercentageOfConsolidatedNetRevenue

Model Structure
Network
288 - Disclosure - Segment, Geographic and Revenue Information (Details 3)
(http://auo.com/role/SegmentGeographicAndRevenueInformationDetails3)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSegmentGeographicAndRevenueInformationAbstract (label)Abstractdurationauo:DisclosureOfSegmentGeographicAndRevenueInformationAbstract
2 Disclosure Of Segment, Geographic and Revenue Information [Table]Tabledurationauo:DisclosureOfSegmentGeographicAndRevenueInformationTable
3 Products and services [axis]Axisdurationifrs-full:ProductsAndServicesAxis
4 Products and services [member]Memberdurationifrs-full:ProductsAndServicesMember
5 Televisions [member]Memberdurationauo:TelevisionsMember
6 Mobile PCs [member]Memberdurationauo:MobilePcsMember
7 Mobile Devices [member]Memberdurationauo:MobileDeviceMember
8 Monitors [member]Memberdurationauo:MonitorMember
9 Commercial and Others [member]Memberdurationauo:CommercialAndOtherProductsMember
10 Solar Products [member]Memberdurationauo:SolarProductsMember
11 Disclosure of Segment, Geographic and Revenue Information [Line Items]LineItemsdurationauo:DisclosureOfSegmentGeographicAndRevenueInformationLineItems
12 ifrs-full:Revenue (label)Concept (Monetary)durationcreditifrs-full:Revenue

Model Structure
Network
289 - Disclosure - Subsequent Events (Details Textual)
(http://auo.com/role/SubsequentEventsDetailsTextual)
Table(implied)
#LabelReport Element ClassPeriod TypeBalanceName
1auo:DisclosureOfSubsequentEventAbstract (label)Abstractdurationauo:DisclosureOfSubsequentEventAbstract
2 Disclosure of Subsequent event [Table]Tabledurationauo:DisclosureOfSubsequentEventTable
3 Non-adjusting events after reporting period [axis]Axisdurationifrs-full:NonadjustingEventsAfterReportingPeriodAxis
4 Non-adjusting events after reporting period [member]Memberdurationifrs-full:NonadjustingEventsMember
5 Subsequent Event [member]Memberdurationauo:SubsequentEventsMember
6 Scenario [Axis]Axisdurationus-gaap:StatementScenarioAxis
7 Scenario, Unspecified [Domain]Memberdurationus-gaap:ScenarioUnspecifiedDomain
8 Subsequent Event Type [Axis]Axisdurationus-gaap:SubsequentEventTypeAxis
9 Subsequent Event Type [Domain]Memberdurationus-gaap:SubsequentEventTypeDomain
10 Scenario for tax [Axis]Axisdurationauo:ScenarioForTaxAxis
11 Scenario for tax [Domain]Memberdurationauo:ScenarioForTaxDomain
12 Amendment to statutory tax rate [Member]Memberdurationauo:AmendmentToStatutoryTaxRateMember
13 Disclosure of Subsequent event [Line Items]LineItemsdurationauo:DisclosureOfSubsequentEventLineItems
14 auo:ProceedsFromSubsidiaryCapitalReturn (label)Concept (Monetary)durationdebitauo:ProceedsFromSubsidiaryCapitalReturn
15 auo:IncreaseThroughChangeInTaxRateDeferredTaxAssets (verboseLabel)Concept (Monetary)instantdebitauo:IncreaseThroughChangeInTaxRateDeferredTaxAssets
16 auo:IncreaseThroughChangeInTaxRateDeferredTaxLiability (verboseLabel)Concept (Monetary)instantcreditauo:IncreaseThroughChangeInTaxRateDeferredTaxLiability
17 ifrs-full:ApplicableTaxRate (label)Concept (Percent)durationifrs-full:ApplicableTaxRate
18 Ceiling of consideration transferred, acquisition-date fair valueConcept (Monetary)instantcreditifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred

 

Fact Tables

The colours used for the fact values are significant, and have the following meanings:


Fact Table
Network
101 - Document - Document And Entity Information
(http://auo.com/role/DocumentAndEntityInformation)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]Amendment Flagfalse
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]Current Fiscal Year End Date--12-31
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]Document Fiscal Period FocusFY
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]Document Fiscal Year Focus2017
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]Document Period End Date2017-12-31
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]Document Type20-F
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]Entity Central Index Key0001172494
80001172494 (http://www.sec.gov/CIK)2017-12-31Class of Stock [Domain]Entity Common Stock, Shares Outstanding9624245115xbrli:sharesINF
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]Entity Current Reporting StatusYes
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]Entity Filer CategoryLarge Accelerated Filer
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]Entity Registrant NameAU OPTRONICS CORP
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]Entity Voluntary FilersNo
130001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]Entity Well-known Seasoned IssuerYes
140001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]Trading SymbolAUO

Fact Table
Network
102 - Statement - Consolidated Statements of Financial Position
(http://auo.com/role/ConsolidatedStatementsOfFinancialPosition)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31nullauo:CurrentAccountsReceivablesDueFromRelatedParties (label)2533224000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-12-31nullauo:CurrentAccountsReceivablesDueFromRelatedParties (label)1853062000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:Assets (label)405860765000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:Assets (label)430170689000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CapitalReserve (label)59977743000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CapitalReserve (label)60538505000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2014-12-31nullifrs-full:CashAndCashEquivalents (label)81965333000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2015-12-31nullifrs-full:CashAndCashEquivalents (label)78880700000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CashAndCashEquivalents (label)80191248000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CashAndCashEquivalents (label)105020616000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentAssets (label)163346242000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentAssets (label)180175541000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentDerivativeFinancialLiabilities (label)3540000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentDerivativeFinancialLiabilities (label)0iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentFinancialAssetsAtFairValueThroughProfitOrLoss (label)65669000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentFinancialAssetsAtFairValueThroughProfitOrLoss (label)70366000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss (label)896998000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss (label)106597000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentLiabilities (label)118031594000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentLiabilities (label)110264693000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentPortionOfLongtermBorrowings (label)18074627000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentPortionOfLongtermBorrowings (label)8155234000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentProvisions (label)1783407000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentProvisions (label)819232000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentTaxAssetsCurrent (label)14057000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentTaxAssetsCurrent (label)27431000iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentTaxLiabilitiesCurrent (label)1715309000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentTaxLiabilitiesCurrent (label)4684818000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentTradeReceivables (label)45710177000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentTradeReceivables (label)38738211000iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:DeferredTaxAssets (label)1736854000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:DeferredTaxAssets (label)7069014000iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:DeferredTaxLiabilities (label)1830264000iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:DeferredTaxLiabilities (label)1638227000iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2014-12-31nullifrs-full:Equity (label)173986932000iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2015-12-31nullifrs-full:Equity (label)180661073000iso4217:TWD-3
370001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:Equity (label)176836313000iso4217:TWD-3
380001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:Equity (label)212817851000iso4217:TWD-3
390001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:EquityAndLiabilities (label)405860765000iso4217:TWD-3
400001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:EquityAndLiabilities (label)430170689000iso4217:TWD-3
410001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:EquityAttributableToOwnersOfParent (label)158448109000iso4217:TWD-3
420001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:EquityAttributableToOwnersOfParent (label)195749350000iso4217:TWD-3
430001172494 (http://www.sec.gov/CIK)2015-12-31nullifrs-full:IntangibleAssetsOtherThanGoodwill (label)3294684000iso4217:TWD-3
440001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:IntangibleAssetsOtherThanGoodwill (label)2322239000iso4217:TWD-3
450001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:IntangibleAssetsOtherThanGoodwill (label)1890297000iso4217:TWD-3
460001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:Inventories (label)27679335000iso4217:TWD-3
470001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:Inventories (label)24854323000iso4217:TWD-3
480001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:InvestmentAccountedForUsingEquityMethod (label)5178337000iso4217:TWD-3
490001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:InvestmentAccountedForUsingEquityMethod (label)5597287000iso4217:TWD-3
500001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:InvestmentProperty (label)465868000iso4217:TWD-3
510001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:InvestmentProperty (label)717823000iso4217:TWD-3
520001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:IssuedCapital (label)96242451000iso4217:TWD-3
530001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:IssuedCapital (label)96242451000iso4217:TWD-3
540001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:Liabilities (label)229024452000iso4217:TWD-3
550001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:Liabilities (label)217352838000iso4217:TWD-3
560001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:LongtermBorrowings (label)106187993000iso4217:TWD-3
570001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:LongtermBorrowings (label)102452776000iso4217:TWD-3
580001172494 (http://www.sec.gov/CIK)2014-12-31nullifrs-full:NoncontrollingInterests (label)19329254000iso4217:TWD-3
590001172494 (http://www.sec.gov/CIK)2015-12-31nullifrs-full:NoncontrollingInterests (label)22648604000iso4217:TWD-3
600001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:NoncontrollingInterests (label)18388204000iso4217:TWD-3
610001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:NoncontrollingInterests (label)17068501000iso4217:TWD-3
620001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:NoncurrentAssets (label)242514523000iso4217:TWD-3
630001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:NoncurrentAssets (label)249995148000iso4217:TWD-3
640001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale (label)228015000iso4217:TWD-3
650001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale (label)2407980000iso4217:TWD-3
660001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:NoncurrentFinancialAssetsAvailableforsale (label)3030278000iso4217:TWD-3
670001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:NoncurrentFinancialAssetsAvailableforsale (label)4348134000iso4217:TWD-3
680001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:NoncurrentLiabilities (label)110992858000iso4217:TWD-3
690001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:NoncurrentLiabilities (label)107088145000iso4217:TWD-3
700001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:NoncurrentProvisions (label)1038264000iso4217:TWD-3
710001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:NoncurrentProvisions (label)1066731000iso4217:TWD-3
720001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:OtherCurrentAssets (label)6330283000iso4217:TWD-3
730001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:OtherCurrentAssets (label)6631130000iso4217:TWD-3
740001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:OtherCurrentFinancialAssets (label)559946000iso4217:TWD-3
750001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:OtherCurrentFinancialAssets (label)518329000iso4217:TWD-3
760001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:OtherCurrentLiabilities (label)22385488000iso4217:TWD-3
770001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:OtherCurrentLiabilities (label)26368732000iso4217:TWD-3
780001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:OtherCurrentPayables (label)12647041000iso4217:TWD-3
790001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:OtherCurrentPayables (label)12131121000iso4217:TWD-3
800001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:OtherEquityInterest (label)777297000iso4217:TWD-3
810001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:OtherEquityInterest (label)256062000iso4217:TWD-3
820001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:OtherNoncurrentAssets (label)7039115000iso4217:TWD-3
830001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:OtherNoncurrentAssets (label)5439504000iso4217:TWD-3
840001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:OtherNoncurrentLiabilities (label)1936337000iso4217:TWD-3
850001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:OtherNoncurrentLiabilities (label)1930411000iso4217:TWD-3
860001172494 (http://www.sec.gov/CIK)2015-12-31nullifrs-full:PropertyPlantAndEquipment (label)208785609000iso4217:TWD-3
870001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:PropertyPlantAndEquipment (label)222741832000iso4217:TWD-3
880001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:PropertyPlantAndEquipment (label)224933089000iso4217:TWD-3
890001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:RetainedEarnings (label)1450618000iso4217:TWD-3
900001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:RetainedEarnings (label)38712332000iso4217:TWD-3
910001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:ShorttermBorrowings (label)526723000iso4217:TWD-3
920001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:ShorttermBorrowings (label)3424376000iso4217:TWD-3
930001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:TradeAndOtherCurrentPayablesToRelatedParties (label)8823065000iso4217:TWD-3
940001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:TradeAndOtherCurrentPayablesToRelatedParties (label)7664731000iso4217:TWD-3
950001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers (label)51148055000iso4217:TWD-3
960001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers (label)46888691000iso4217:TWD-3
970001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:TradeAndOtherPayablesToRelatedParties (label)27341000iso4217:TWD-3
980001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:TradeAndOtherPayablesToRelatedParties (label)21161000iso4217:TWD-3
990001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:TradeAndOtherReceivablesDueFromRelatedParties (label)34288000iso4217:TWD-3
1000001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:TradeAndOtherReceivablesDueFromRelatedParties (label)54093000iso4217:TWD-3

Fact Table
Network
103 - Statement - Consolidated Statements of Financial Position (Parenthetical)
(http://auo.com/role/ConsolidatedStatementsOfFinancialPositionParenthetical)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31nullPar value per share10iso4217:TWD/xbrli:shares0
20001172494 (http://www.sec.gov/CIK)2017-12-31nullPar value per share10iso4217:TWD/xbrli:shares0

Fact Table
Network
104 - Statement - Consolidated Statements of Comprehensive Income
(http://auo.com/role/ConsolidatedStatementsOfComprehensiveIncome)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:BasicEarningsLossPerShare (label)0.75iso4217:TWD/xbrli:shares2
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:BasicEarningsLossPerShare (label)1.04iso4217:TWD/xbrli:shares2
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:BasicEarningsLossPerShare (label)4.43iso4217:TWD/xbrli:shares2
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ComprehensiveIncome (label)6482317000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ComprehensiveIncome (label)1423530000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ComprehensiveIncome (label)39669910000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests (label)-703376000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests (label)-3079038000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests (label)-2476236000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)7185693000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)4502568000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)42146146000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:CostOfSales (label)320509439000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:CostOfSales (label)294598017000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:CostOfSales (label)279986522000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:DilutedEarningsLossPerShare (label)0.7iso4217:TWD/xbrli:shares2
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:DilutedEarningsLossPerShare (label)1.02iso4217:TWD/xbrli:shares2
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DilutedEarningsLossPerShare (label)4.27iso4217:TWD/xbrli:shares2
190001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:DistributionAndAdministrativeExpense (label)4206101000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:DistributionAndAdministrativeExpense (label)3895089000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DistributionAndAdministrativeExpense (label)3888969000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:FinanceCosts (label)2591023000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:FinanceCosts (label)2707887000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:FinanceCosts (label)2867861000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:GrossProfit (label)39837055000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:GrossProfit (label)34491019000iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:GrossProfit (label)61041745000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:IncomeTaxExpenseContinuingOperations (label)384841000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:IncomeTaxExpenseContinuingOperations (label)2432545000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:IncomeTaxExpenseContinuingOperations (label)-1125157000iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss (label)-16050000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss (label)-230202000iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss (label)-316372000iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss (label)-681000iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss (label)0iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss (label)-155930000iso4217:TWD-3
370001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherComprehensiveIncome (label)-731692000iso4217:TWD-3
380001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherComprehensiveIncome (label)-7329827000iso4217:TWD-3
390001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherComprehensiveIncome (label)-818853000iso4217:TWD-3
400001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets (label)-521173000iso4217:TWD-3
410001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets (label)766534000iso4217:TWD-3
420001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets (label)1146422000iso4217:TWD-3
430001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation (label)-294749000iso4217:TWD-3
440001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation (label)-7500071000iso4217:TWD-3
450001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation (label)-2255410000iso4217:TWD-3
460001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)-251401000iso4217:TWD-3
470001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)-225194000iso4217:TWD-3
480001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)-98091000iso4217:TWD-3
490001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations (label)-3647000iso4217:TWD-3
500001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations (label)7199000iso4217:TWD-3
510001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations (label)-21992000iso4217:TWD-3
520001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax (label)-478591000iso4217:TWD-3
530001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax (label)-7105207000iso4217:TWD-3
540001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax (label)-876935000iso4217:TWD-3
550001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax (label)-253101000iso4217:TWD-3
560001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax (label)-224620000iso4217:TWD-3
570001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax (label)58082000iso4217:TWD-3
580001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherGainsLosses (label)-9978320000iso4217:TWD-3
590001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherGainsLosses (label)-925673000iso4217:TWD-3
600001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherGainsLosses (label)-976560000iso4217:TWD-3
610001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherIncome (label)2197593000iso4217:TWD-3
620001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherIncome (label)2380228000iso4217:TWD-3
630001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherIncome (label)3829897000iso4217:TWD-3
640001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProfitLoss (label)7214009000iso4217:TWD-3
650001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProfitLoss (label)8753357000iso4217:TWD-3
660001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProfitLoss (label)40488763000iso4217:TWD-3
670001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProfitLossAttributableToNoncontrollingInterests (label)-28161000iso4217:TWD-3
680001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProfitLossAttributableToNoncontrollingInterests (label)-1211772000iso4217:TWD-3
690001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProfitLossAttributableToNoncontrollingInterests (label)-2120737000iso4217:TWD-3
700001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProfitLossAttributableToOwnersOfParent (label)7242170000iso4217:TWD-3
710001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProfitLossAttributableToOwnersOfParent (label)9965129000iso4217:TWD-3
720001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProfitLossAttributableToOwnersOfParent (label)42609500000iso4217:TWD-3
730001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProfitLossBeforeTax (label)7598850000iso4217:TWD-3
740001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProfitLossBeforeTax (label)11185902000iso4217:TWD-3
750001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProfitLossBeforeTax (label)39363606000iso4217:TWD-3
760001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ResearchAndDevelopmentExpense (label)8903819000iso4217:TWD-3
770001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ResearchAndDevelopmentExpense (label)9080791000iso4217:TWD-3
780001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ResearchAndDevelopmentExpense (label)9854712000iso4217:TWD-3
790001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:Revenue (label)360346494000iso4217:TWD-3
800001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:Revenue (label)329089036000iso4217:TWD-3
810001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:Revenue (label)341028267000iso4217:TWD-3
820001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:SellingGeneralAndAdministrativeExpense (label)9205987000iso4217:TWD-3
830001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:SellingGeneralAndAdministrativeExpense (label)9176683000iso4217:TWD-3
840001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:SellingGeneralAndAdministrativeExpense (label)8158940000iso4217:TWD-3
850001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax (label)324928000iso4217:TWD-3
860001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax (label)-609071000iso4217:TWD-3
870001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax (label)-62327000iso4217:TWD-3
880001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax (label)-2381000iso4217:TWD-3
890001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax (label)574000iso4217:TWD-3
900001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax (label)243000iso4217:TWD-3
910001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)449452000iso4217:TWD-3
920001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)100778000iso4217:TWD-3
930001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)239006000iso4217:TWD-3

Fact Table
Network
105 - Statement - Consolidated Statements of Changes in Equity
(http://auo.com/role/ConsolidatedStatementsOfChangesInEquity)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Equity [Member]ifrs-full:ComprehensiveIncome (label)6482317000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:ComprehensiveIncome (label)6984066000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:CommonStock1Member (label)ifrs-full:ComprehensiveIncome (label)0iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:ComprehensiveIncome (label)7185693000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Non-controlling interests [member]ifrs-full:ComprehensiveIncome (label)-703376000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:ComprehensiveIncome (label)201627000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:ComprehensiveIncome (label)774034000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:ComprehensiveIncome (label)-3647000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:ComprehensiveIncome (label)-568760000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:ComprehensiveIncome (label)6984066000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:SharePremiumMember (label)ifrs-full:ComprehensiveIncome (label)0iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:ComprehensiveIncome (label)0iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Equity [Member]ifrs-full:ComprehensiveIncome (label)1423530000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:ComprehensiveIncome (label)9740607000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:CommonStock1Member (label)ifrs-full:ComprehensiveIncome (label)0iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:ComprehensiveIncome (label)4502568000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Non-controlling interests [member]ifrs-full:ComprehensiveIncome (label)-3079038000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:ComprehensiveIncome (label)-5238039000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:ComprehensiveIncome (label)-6009190000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:ComprehensiveIncome (label)7199000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:ComprehensiveIncome (label)763952000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:ComprehensiveIncome (label)9740607000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:SharePremiumMember (label)ifrs-full:ComprehensiveIncome (label)0iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:ComprehensiveIncome (label)0iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Equity [Member]ifrs-full:ComprehensiveIncome (label)39669910000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:ComprehensiveIncome (label)42667381000iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CommonStock1Member (label)ifrs-full:ComprehensiveIncome (label)0iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:ComprehensiveIncome (label)42146146000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Non-controlling interests [member]ifrs-full:ComprehensiveIncome (label)-2476236000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:ComprehensiveIncome (label)-521235000iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:ComprehensiveIncome (label)-1651975000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:ComprehensiveIncome (label)-21992000iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:ComprehensiveIncome (label)1152732000iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:ComprehensiveIncome (label)42667381000iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:SharePremiumMember (label)ifrs-full:ComprehensiveIncome (label)0iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:ComprehensiveIncome (label)0iso4217:TWD-3
370001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Equity [Member]ifrs-full:DividendsPaid (label)4812123000iso4217:TWD-3
380001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:DividendsPaid (label)4812123000iso4217:TWD-3
390001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:CommonStock1Member (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
400001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:DividendsPaid (label)4812123000iso4217:TWD-3
410001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Non-controlling interests [member]ifrs-full:DividendsPaid (label)0iso4217:TWD-3
420001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
430001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
440001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
450001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
460001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:DividendsPaid (label)4812123000iso4217:TWD-3
470001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:SharePremiumMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
480001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
490001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Equity [Member]ifrs-full:DividendsPaid (label)3368486000iso4217:TWD-3
500001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:DividendsPaid (label)3368486000iso4217:TWD-3
510001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:CommonStock1Member (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
520001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:DividendsPaid (label)3368486000iso4217:TWD-3
530001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Non-controlling interests [member]ifrs-full:DividendsPaid (label)0iso4217:TWD-3
540001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
550001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
560001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
570001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
580001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:DividendsPaid (label)3368486000iso4217:TWD-3
590001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:SharePremiumMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
600001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
610001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Equity [Member]ifrs-full:DividendsPaid (label)5389577000iso4217:TWD-3
620001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:DividendsPaid (label)5389577000iso4217:TWD-3
630001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CommonStock1Member (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
640001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:DividendsPaid (label)5389577000iso4217:TWD-3
650001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Non-controlling interests [member]ifrs-full:DividendsPaid (label)0iso4217:TWD-3
660001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
670001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
680001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
690001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
700001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:DividendsPaid (label)5389577000iso4217:TWD-3
710001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:SharePremiumMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
720001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:DividendsPaid (label)0iso4217:TWD-3
730001172494 (http://www.sec.gov/CIK)2014-12-31Equity [Member]ifrs-full:Equity (label)173986932000iso4217:TWD-3
740001172494 (http://www.sec.gov/CIK)2014-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:Equity (label)-7058273000iso4217:TWD-3
750001172494 (http://www.sec.gov/CIK)2014-12-31auo:CommonStock1Member (label)ifrs-full:Equity (label)96242451000iso4217:TWD-3
760001172494 (http://www.sec.gov/CIK)2014-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:Equity (label)154657678000iso4217:TWD-3
770001172494 (http://www.sec.gov/CIK)2014-12-31Non-controlling interests [member]ifrs-full:Equity (label)19329254000iso4217:TWD-3
780001172494 (http://www.sec.gov/CIK)2014-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:Equity (label)5813709000iso4217:TWD-3
790001172494 (http://www.sec.gov/CIK)2014-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:Equity (label)5766162000iso4217:TWD-3
800001172494 (http://www.sec.gov/CIK)2014-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:Equity (label)18440000iso4217:TWD-3
810001172494 (http://www.sec.gov/CIK)2014-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:Equity (label)29107000iso4217:TWD-3
820001172494 (http://www.sec.gov/CIK)2014-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:Equity (label)-6656523000iso4217:TWD-3
830001172494 (http://www.sec.gov/CIK)2014-12-31ifrs-full:SharePremiumMember (label)ifrs-full:Equity (label)59258041000iso4217:TWD-3
840001172494 (http://www.sec.gov/CIK)2014-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:Equity (label)401750000iso4217:TWD-3
850001172494 (http://www.sec.gov/CIK)2015-12-31Equity [Member]ifrs-full:Equity (label)180661073000iso4217:TWD-3
860001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:Equity (label)-6657762000iso4217:TWD-3
870001172494 (http://www.sec.gov/CIK)2015-12-31auo:CommonStock1Member (label)ifrs-full:Equity (label)96242451000iso4217:TWD-3
880001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:Equity (label)158012469000iso4217:TWD-3
890001172494 (http://www.sec.gov/CIK)2015-12-31Non-controlling interests [member]ifrs-full:Equity (label)22648604000iso4217:TWD-3
900001172494 (http://www.sec.gov/CIK)2015-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:Equity (label)6015336000iso4217:TWD-3
910001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:Equity (label)6540196000iso4217:TWD-3
920001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:Equity (label)14793000iso4217:TWD-3
930001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:Equity (label)-539653000iso4217:TWD-3
940001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:Equity (label)-4493166000iso4217:TWD-3
950001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:SharePremiumMember (label)ifrs-full:Equity (label)60247848000iso4217:TWD-3
960001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:Equity (label)2164596000iso4217:TWD-3
970001172494 (http://www.sec.gov/CIK)2016-12-31Equity [Member]ifrs-full:Equity (label)176836313000iso4217:TWD-3
980001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:Equity (label)-1207174000iso4217:TWD-3
990001172494 (http://www.sec.gov/CIK)2016-12-31auo:CommonStock1Member (label)ifrs-full:Equity (label)96242451000iso4217:TWD-3
1000001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:Equity (label)158448109000iso4217:TWD-3
1010001172494 (http://www.sec.gov/CIK)2016-12-31Non-controlling interests [member]ifrs-full:Equity (label)18388204000iso4217:TWD-3
1020001172494 (http://www.sec.gov/CIK)2016-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:Equity (label)777297000iso4217:TWD-3
1030001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:Equity (label)531006000iso4217:TWD-3
1040001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:Equity (label)21992000iso4217:TWD-3
1050001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:Equity (label)224299000iso4217:TWD-3
1060001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:Equity (label)1450618000iso4217:TWD-3
1070001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:SharePremiumMember (label)ifrs-full:Equity (label)59977743000iso4217:TWD-3
1080001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:Equity (label)2657792000iso4217:TWD-3
1090001172494 (http://www.sec.gov/CIK)2017-12-31Equity [Member]ifrs-full:Equity (label)212817851000iso4217:TWD-3
1100001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:Equity (label)35272646000iso4217:TWD-3
1110001172494 (http://www.sec.gov/CIK)2017-12-31auo:CommonStock1Member (label)ifrs-full:Equity (label)96242451000iso4217:TWD-3
1120001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:Equity (label)195749350000iso4217:TWD-3
1130001172494 (http://www.sec.gov/CIK)2017-12-31Non-controlling interests [member]ifrs-full:Equity (label)17068501000iso4217:TWD-3
1140001172494 (http://www.sec.gov/CIK)2017-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:Equity (label)256062000iso4217:TWD-3
1150001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:Equity (label)-1120969000iso4217:TWD-3
1160001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:Equity (label)0iso4217:TWD-3
1170001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:Equity (label)1377031000iso4217:TWD-3
1180001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:Equity (label)38712332000iso4217:TWD-3
1190001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:SharePremiumMember (label)ifrs-full:Equity (label)60538505000iso4217:TWD-3
1200001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:Equity (label)3439686000iso4217:TWD-3
1210001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Equity [Member]ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary (label)0iso4217:TWD-3
1220001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary (label)0iso4217:TWD-3
1230001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:CommonStock1Member (label)ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary (label)0iso4217:TWD-3
1240001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary (label)817191000iso4217:TWD-3
1250001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Non-controlling interests [member]ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary (label)-817191000iso4217:TWD-3
1260001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary (label)0iso4217:TWD-3
1270001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary (label)0iso4217:TWD-3
1280001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary (label)0iso4217:TWD-3
1290001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary (label)0iso4217:TWD-3
1300001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary (label)0iso4217:TWD-3
1310001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:SharePremiumMember (label)ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary (label)817191000iso4217:TWD-3
1320001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary (label)0iso4217:TWD-3
1330001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Equity [Member]ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)5329823000iso4217:TWD-3
1340001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1350001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:CommonStock1Member (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1360001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1370001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Non-controlling interests [member]ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)5329823000iso4217:TWD-3
1380001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1390001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1400001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1410001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1420001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1430001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:SharePremiumMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1440001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1450001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Equity [Member]ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)-161367000iso4217:TWD-3
1460001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1470001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:CommonStock1Member (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1480001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1490001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Non-controlling interests [member]ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)-161367000iso4217:TWD-3
1500001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1510001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1520001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1530001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1540001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1550001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:SharePremiumMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1560001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1570001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Equity [Member]ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)1681150000iso4217:TWD-3
1580001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1590001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CommonStock1Member (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1600001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1610001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Non-controlling interests [member]ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)1681150000iso4217:TWD-3
1620001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1630001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1640001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1650001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1660001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1670001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:SharePremiumMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1680001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries (label)0iso4217:TWD-3
1690001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Equity [Member]ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary (label)0iso4217:TWD-3
1700001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary (label)0iso4217:TWD-3
1710001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CommonStock1Member (label)ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary (label)0iso4217:TWD-3
1720001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary (label)518196000iso4217:TWD-3
1730001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Non-controlling interests [member]ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary (label)-518196000iso4217:TWD-3
1740001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary (label)0iso4217:TWD-3
1750001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary (label)0iso4217:TWD-3
1760001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary (label)0iso4217:TWD-3
1770001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary (label)0iso4217:TWD-3
1780001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary (label)0iso4217:TWD-3
1790001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:SharePremiumMember (label)ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary (label)518196000iso4217:TWD-3
1800001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary (label)0iso4217:TWD-3
1810001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Equity [Member]ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners (label)57042000iso4217:TWD-3
1820001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners (label)0iso4217:TWD-3
1830001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:CommonStock1Member (label)ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners (label)0iso4217:TWD-3
1840001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners (label)20006000iso4217:TWD-3
1850001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Non-controlling interests [member]ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners (label)37036000iso4217:TWD-3
1860001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners (label)0iso4217:TWD-3
1870001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners (label)0iso4217:TWD-3
1880001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners (label)0iso4217:TWD-3
1890001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners (label)0iso4217:TWD-3
1900001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners (label)0iso4217:TWD-3
1910001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:SharePremiumMember (label)ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners (label)20006000iso4217:TWD-3
1920001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners (label)0iso4217:TWD-3
1930001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Equity [Member]ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)-325876000iso4217:TWD-3
1940001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)-8586000iso4217:TWD-3
1950001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:CommonStock1Member (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
1960001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)164030000iso4217:TWD-3
1970001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Non-controlling interests [member]ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)-489906000iso4217:TWD-3
1980001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
1990001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2000001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2010001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2020001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)-8586000iso4217:TWD-3
2030001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:SharePremiumMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)172616000iso4217:TWD-3
2040001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2050001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Equity [Member]ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)-1775479000iso4217:TWD-3
2060001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)-428337000iso4217:TWD-3
2070001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:CommonStock1Member (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2080001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)-718448000iso4217:TWD-3
2090001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Non-controlling interests [member]ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)-1057031000iso4217:TWD-3
2100001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2120001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2130001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)-428337000iso4217:TWD-3
2150001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:SharePremiumMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)-290111000iso4217:TWD-3
2160001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2170001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Equity [Member]ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)20055000iso4217:TWD-3
2180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)-16090000iso4217:TWD-3
2190001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CommonStock1Member (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2200001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)26476000iso4217:TWD-3
2210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Non-controlling interests [member]ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)-6421000iso4217:TWD-3
2220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2230001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2250001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2260001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)-16090000iso4217:TWD-3
2270001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:SharePremiumMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)42566000iso4217:TWD-3
2280001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransferBetweenRevaluationReserveAndRetainedEarnings (label)0iso4217:TWD-3
2290001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Equity [Member]ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2300001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)-1762846000iso4217:TWD-3
2310001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:CommonStock1Member (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2320001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2330001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Non-controlling interests [member]ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2340001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2350001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2360001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2370001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2380001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2390001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:SharePremiumMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2400001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)1762846000iso4217:TWD-3
2410001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Equity [Member]ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2420001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)-493196000iso4217:TWD-3
2430001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:CommonStock1Member (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2440001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2450001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Non-controlling interests [member]ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2460001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2470001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2480001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2490001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2500001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2510001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:SharePremiumMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2520001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)493196000iso4217:TWD-3
2530001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Equity [Member]ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2540001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)-781894000iso4217:TWD-3
2550001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CommonStock1Member (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2560001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2570001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Non-controlling interests [member]ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2580001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2590001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2600001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2610001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2620001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2630001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:SharePremiumMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)0iso4217:TWD-3
2640001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve (label)781894000iso4217:TWD-3
2650001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Equity [Member]ifrs-full:OtherComprehensiveIncome (label)-731692000iso4217:TWD-3
2660001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:OtherComprehensiveIncome (label)-258104000iso4217:TWD-3
2670001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:CommonStock1Member (label)ifrs-full:OtherComprehensiveIncome (label)0iso4217:TWD-3
2680001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:OtherComprehensiveIncome (label)-56477000iso4217:TWD-3
2690001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Non-controlling interests [member]ifrs-full:OtherComprehensiveIncome (label)-675215000iso4217:TWD-3
2700001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:OtherComprehensiveIncome (label)201627000iso4217:TWD-3
2710001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:OtherComprehensiveIncome (label)774034000iso4217:TWD-3
2720001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:OtherComprehensiveIncome (label)-3647000iso4217:TWD-3
2730001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:OtherComprehensiveIncome (label)-568760000iso4217:TWD-3
2740001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:OtherComprehensiveIncome (label)-258104000iso4217:TWD-3
2750001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:SharePremiumMember (label)ifrs-full:OtherComprehensiveIncome (label)0iso4217:TWD-3
2760001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:OtherComprehensiveIncome (label)0iso4217:TWD-3
2770001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Equity [Member]ifrs-full:OtherComprehensiveIncome (label)-7329827000iso4217:TWD-3
2780001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:OtherComprehensiveIncome (label)-224522000iso4217:TWD-3
2790001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:CommonStock1Member (label)ifrs-full:OtherComprehensiveIncome (label)0iso4217:TWD-3
2800001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:OtherComprehensiveIncome (label)-5462561000iso4217:TWD-3
2810001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Non-controlling interests [member]ifrs-full:OtherComprehensiveIncome (label)-1867266000iso4217:TWD-3
2820001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:OtherComprehensiveIncome (label)-5238039000iso4217:TWD-3
2830001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:OtherComprehensiveIncome (label)-6009190000iso4217:TWD-3
2840001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:OtherComprehensiveIncome (label)7199000iso4217:TWD-3
2850001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:OtherComprehensiveIncome (label)763952000iso4217:TWD-3
2860001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:OtherComprehensiveIncome (label)-224522000iso4217:TWD-3
2870001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:SharePremiumMember (label)ifrs-full:OtherComprehensiveIncome (label)0iso4217:TWD-3
2880001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:OtherComprehensiveIncome (label)0iso4217:TWD-3
2890001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Equity [Member]ifrs-full:OtherComprehensiveIncome (label)-818853000iso4217:TWD-3
2900001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:OtherComprehensiveIncome (label)57881000iso4217:TWD-3
2910001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CommonStock1Member (label)ifrs-full:OtherComprehensiveIncome (label)0iso4217:TWD-3
2920001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:OtherComprehensiveIncome (label)-463354000iso4217:TWD-3
2930001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Non-controlling interests [member]ifrs-full:OtherComprehensiveIncome (label)-355499000iso4217:TWD-3
2940001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:OtherComprehensiveIncome (label)-521235000iso4217:TWD-3
2950001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:OtherComprehensiveIncome (label)-1651975000iso4217:TWD-3
2960001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:OtherComprehensiveIncome (label)-21992000iso4217:TWD-3
2970001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:OtherComprehensiveIncome (label)1152732000iso4217:TWD-3
2980001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:OtherComprehensiveIncome (label)57881000iso4217:TWD-3
2990001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:SharePremiumMember (label)ifrs-full:OtherComprehensiveIncome (label)0iso4217:TWD-3
3000001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:OtherComprehensiveIncome (label)0iso4217:TWD-3
3010001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Equity [Member]ifrs-full:ProfitLoss (label)7214009000iso4217:TWD-3
3020001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:ProfitLoss (label)7242170000iso4217:TWD-3
3030001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:CommonStock1Member (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3040001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:ProfitLoss (label)7242170000iso4217:TWD-3
3050001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Non-controlling interests [member]ifrs-full:ProfitLoss (label)-28161000iso4217:TWD-3
3060001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3070001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3080001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3090001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:ProfitLoss (label)7242170000iso4217:TWD-3
3110001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:SharePremiumMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3120001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3130001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Equity [Member]ifrs-full:ProfitLoss (label)8753357000iso4217:TWD-3
3140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:ProfitLoss (label)9965129000iso4217:TWD-3
3150001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:CommonStock1Member (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3160001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:ProfitLoss (label)9965129000iso4217:TWD-3
3170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Non-controlling interests [member]ifrs-full:ProfitLoss (label)-1211772000iso4217:TWD-3
3180001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3190001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3210001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3220001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:ProfitLoss (label)9965129000iso4217:TWD-3
3230001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:SharePremiumMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3240001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3250001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Equity [Member]ifrs-full:ProfitLoss (label)40488763000iso4217:TWD-3
3260001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:CapitalReserveMember (label)ifrs-full:ProfitLoss (label)42609500000iso4217:TWD-3
3270001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CommonStock1Member (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3280001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:EquityAttributableToOwnersOfParentMember (label)ifrs-full:ProfitLoss (label)42609500000iso4217:TWD-3
3290001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Non-controlling interests [member]ifrs-full:ProfitLoss (label)-2120737000iso4217:TWD-3
3300001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OtherComponentsOfEquitiesMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3310001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3320001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3330001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3340001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:RetainedEarningsMember (label)ifrs-full:ProfitLoss (label)42609500000iso4217:TWD-3
3350001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:SharePremiumMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3
3360001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:StatutoryReserveMember (label)ifrs-full:ProfitLoss (label)0iso4217:TWD-3

Fact Table
Network
106 - Statement - Consolidated Statements of Cash Flows
(http://auo.com/role/ConsolidatedStatementsOfCashFlows)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:AdjustmentsForDecreaseIncreaseInPayableToRelatedParties (label)-2165658000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:AdjustmentsForDecreaseIncreaseInPayableToRelatedParties (label)-504779000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:AdjustmentsForDecreaseIncreaseInPayableToRelatedParties (label)-1164514000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:AdjustmentsForDecreaseIncreaseInReceivablesFromRelatedParties (label)1150032000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:AdjustmentsForDecreaseIncreaseInReceivablesFromRelatedParties (label)-47075000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:AdjustmentsForDecreaseIncreaseInReceivablesFromRelatedParties (label)659522000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:InventoryWritedowns (label)5661266000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:InventoryWritedowns (label)3673213000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:InventoryWritedowns (label)3756726000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:NetChangeOfNocontrollingInterestAndOthers (label)-4745245000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:NetChangeOfNocontrollingInterestAndOthers (label)962106000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:NetChangeOfNocontrollingInterestAndOthers (label)-1681150000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:PaymentToAcquireConvertibleBondsPayable (label)14799715000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:PaymentToAcquireConvertibleBondsPayable (label)0iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:PaymentToAcquireConvertibleBondsPayable (label)0iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:ProceedsFromReturnOfCapitalByAvailableforsaleFinancialAssets (label)1497000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:ProceedsFromReturnOfCapitalByAvailableforsaleFinancialAssets (label)0iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ProceedsFromReturnOfCapitalByAvailableforsaleFinancialAssets (label)32000000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsForDecreaseIncreaseInOtherCurrentAssets (label)-7567250000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsForDecreaseIncreaseInOtherCurrentAssets (label)7312751000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsForDecreaseIncreaseInOtherCurrentAssets (label)1572360000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables (label)22073800000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables (label)-13023581000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables (label)4643577000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsForDividendIncome (label)112661000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsForDividendIncome (label)107141000iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsForDividendIncome (label)248514000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsForFairValueGainsLosses (label)240002000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsForFairValueGainsLosses (label)491860000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsForFairValueGainsLosses (label)-795098000iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories (label)-1498601000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories (label)112708000iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories (label)-1149146000iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities (label)-86866000iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities (label)-57382000iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities (label)-103668000iso4217:TWD-3
370001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities (label)-2967282000iso4217:TWD-3
380001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities (label)-4454647000iso4217:TWD-3
390001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities (label)3974959000iso4217:TWD-3
400001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables (label)-10266543000iso4217:TWD-3
410001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables (label)-601488000iso4217:TWD-3
420001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables (label)-2489088000iso4217:TWD-3
430001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsForIncreaseInOtherProvisionsArisingFromPassageOfTime (label)-4012891000iso4217:TWD-3
440001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsForIncreaseInOtherProvisionsArisingFromPassageOfTime (label)-3125053000iso4217:TWD-3
450001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsForIncreaseInOtherProvisionsArisingFromPassageOfTime (label)-911810000iso4217:TWD-3
460001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsForInterestExpense (label)2591023000iso4217:TWD-3
470001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsForInterestExpense (label)2707887000iso4217:TWD-3
480001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsForInterestExpense (label)2867861000iso4217:TWD-3
490001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsForInterestIncome (label)672638000iso4217:TWD-3
500001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsForInterestIncome (label)494542000iso4217:TWD-3
510001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsForInterestIncome (label)612210000iso4217:TWD-3
520001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains (label)107556000iso4217:TWD-3
530001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains (label)-1386370000iso4217:TWD-3
540001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains (label)776962000iso4217:TWD-3
550001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital (label)62237415000iso4217:TWD-3
560001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital (label)44784387000iso4217:TWD-3
570001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital (label)42482863000iso4217:TWD-3
580001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AmortisationExpense (label)894362000iso4217:TWD-3
590001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AmortisationExpense (label)1159465000iso4217:TWD-3
600001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AmortisationExpense (label)628606000iso4217:TWD-3
610001172494 (http://www.sec.gov/CIK)2014-12-31nullifrs-full:CashAndCashEquivalents (label)81965333000iso4217:TWD-3
620001172494 (http://www.sec.gov/CIK)2015-12-31nullifrs-full:CashAndCashEquivalents (label)78880700000iso4217:TWD-3
630001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CashAndCashEquivalents (label)80191248000iso4217:TWD-3
640001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CashAndCashEquivalents (label)105020616000iso4217:TWD-3
650001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities (label)0iso4217:TWD-3
660001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities (label)179262000iso4217:TWD-3
670001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities (label)276393000iso4217:TWD-3
680001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments (label)3341000iso4217:TWD-3
690001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments (label)-16955000iso4217:TWD-3
700001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments (label)-404233000iso4217:TWD-3
710001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:CashFlowsFromUsedInFinancingActivities (label)-34276992000iso4217:TWD-3
720001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:CashFlowsFromUsedInFinancingActivities (label)10721219000iso4217:TWD-3
730001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:CashFlowsFromUsedInFinancingActivities (label)-13410352000iso4217:TWD-3
740001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings (label)1212392000iso4217:TWD-3
750001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings (label)-1065842000iso4217:TWD-3
760001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings (label)2903927000iso4217:TWD-3
770001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:CashFlowsFromUsedInInvestingActivities (label)-31734659000iso4217:TWD-3
780001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:CashFlowsFromUsedInInvestingActivities (label)-42267327000iso4217:TWD-3
790001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:CashFlowsFromUsedInInvestingActivities (label)-43667479000iso4217:TWD-3
800001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:CashFlowsFromUsedInOperatingActivities (label)62003388000iso4217:TWD-3
810001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:CashFlowsFromUsedInOperatingActivities (label)36695846000iso4217:TWD-3
820001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:CashFlowsFromUsedInOperatingActivities (label)84363331000iso4217:TWD-3
830001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:CashFlowsFromUsedInOperations (label)64495006000iso4217:TWD-3
840001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:CashFlowsFromUsedInOperations (label)41581743000iso4217:TWD-3
850001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:CashFlowsFromUsedInOperations (label)86878661000iso4217:TWD-3
860001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:DepreciationExpense (label)46851487000iso4217:TWD-3
870001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:DepreciationExpense (label)38533775000iso4217:TWD-3
880001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DepreciationExpense (label)35801230000iso4217:TWD-3
890001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:DividendsPaidClassifiedAsFinancingActivities (label)4812123000iso4217:TWD-3
900001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:DividendsPaidClassifiedAsFinancingActivities (label)3368486000iso4217:TWD-3
910001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DividendsPaidClassifiedAsFinancingActivities (label)5389577000iso4217:TWD-3
920001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:DividendsReceivedClassifiedAsOperatingActivities (label)380589000iso4217:TWD-3
930001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:DividendsReceivedClassifiedAsOperatingActivities (label)311492000iso4217:TWD-3
940001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DividendsReceivedClassifiedAsOperatingActivities (label)421550000iso4217:TWD-3
950001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents (label)923630000iso4217:TWD-3
960001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents (label)-3839190000iso4217:TWD-3
970001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents (label)-2456132000iso4217:TWD-3
980001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:GainsLossesOnDisposalsOfInvestments (label)-10618000iso4217:TWD-3
990001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:GainsLossesOnDisposalsOfInvestments (label)-333858000iso4217:TWD-3
1000001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:GainsLossesOnDisposalsOfInvestments (label)42788000iso4217:TWD-3
1010001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)585196000iso4217:TWD-3
1020001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)24278000iso4217:TWD-3
1030001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)330814000iso4217:TWD-3
1040001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ImpairmentLoss (label)7026226000iso4217:TWD-3
1050001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ImpairmentLoss (label)34733000iso4217:TWD-3
1060001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ImpairmentLoss (label)1046668000iso4217:TWD-3
1070001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities (label)992795000iso4217:TWD-3
1080001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities (label)3593180000iso4217:TWD-3
1090001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities (label)1013159000iso4217:TWD-3
1100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:IncreaseDecreaseInCashAndCashEquivalents (label)-3084633000iso4217:TWD-3
1110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:IncreaseDecreaseInCashAndCashEquivalents (label)1310548000iso4217:TWD-3
1120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:IncreaseDecreaseInCashAndCashEquivalents (label)24829368000iso4217:TWD-3
1130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:IncreaseDecreaseInWorkingCapital (label)5341259000iso4217:TWD-3
1140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:IncreaseDecreaseInWorkingCapital (label)14388546000iso4217:TWD-3
1150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:IncreaseDecreaseInWorkingCapital (label)-5032192000iso4217:TWD-3
1160001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:InterestPaidClassifiedAsOperatingActivities (label)2474887000iso4217:TWD-3
1170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:InterestPaidClassifiedAsOperatingActivities (label)2105285000iso4217:TWD-3
1180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:InterestPaidClassifiedAsOperatingActivities (label)2551944000iso4217:TWD-3
1190001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:InterestReceivedClassifiedAsOperatingActivities (label)595475000iso4217:TWD-3
1200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:InterestReceivedClassifiedAsOperatingActivities (label)501076000iso4217:TWD-3
1210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:InterestReceivedClassifiedAsOperatingActivities (label)628223000iso4217:TWD-3
1220001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherAdjustmentsForNoncashItems (label)87984000iso4217:TWD-3
1230001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherAdjustmentsForNoncashItems (label)0iso4217:TWD-3
1240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherAdjustmentsForNoncashItems (label)0iso4217:TWD-3
1250001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherAdjustmentsForWhichCashEffectsAreInvestingOrFinancingCashFlow (label)576167000iso4217:TWD-3
1260001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherAdjustmentsForWhichCashEffectsAreInvestingOrFinancingCashFlow (label)0iso4217:TWD-3
1270001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherAdjustmentsForWhichCashEffectsAreInvestingOrFinancingCashFlow (label)0iso4217:TWD-3
1280001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherAdjustmentsToReconcileProfitLoss (label)10671000iso4217:TWD-3
1290001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherAdjustmentsToReconcileProfitLoss (label)-37295000iso4217:TWD-3
1300001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherAdjustmentsToReconcileProfitLoss (label)-126760000iso4217:TWD-3
1310001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities (label)156994000iso4217:TWD-3
1320001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities (label)-30944000iso4217:TWD-3
1330001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities (label)-34654000iso4217:TWD-3
1340001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities (label)227320000iso4217:TWD-3
1350001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities (label)-37246000iso4217:TWD-3
1360001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities (label)-44469000iso4217:TWD-3
1370001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets (label)99517000iso4217:TWD-3
1380001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets (label)9917000iso4217:TWD-3
1390001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets (label)0iso4217:TWD-3
1400001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProceedsFromNoncurrentBorrowings (label)30633963000iso4217:TWD-3
1410001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProceedsFromNoncurrentBorrowings (label)61799594000iso4217:TWD-3
1420001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProceedsFromNoncurrentBorrowings (label)34872615000iso4217:TWD-3
1430001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod (label)0iso4217:TWD-3
1440001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod (label)3522610000iso4217:TWD-3
1450001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod (label)56000iso4217:TWD-3
1460001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)1762401000iso4217:TWD-3
1470001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)789682000iso4217:TWD-3
1480001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)1149649000iso4217:TWD-3
1490001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProfitLossBeforeTax (label)7598850000iso4217:TWD-3
1500001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProfitLossBeforeTax (label)11185902000iso4217:TWD-3
1510001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProfitLossBeforeTax (label)39363606000iso4217:TWD-3
1520001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:PurchaseOfAvailableforsaleFinancialAssets (label)33593000iso4217:TWD-3
1530001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:PurchaseOfAvailableforsaleFinancialAssets (label)66948000iso4217:TWD-3
1540001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:PurchaseOfAvailableforsaleFinancialAssets (label)201434000iso4217:TWD-3
1550001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities (label)303282000iso4217:TWD-3
1560001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities (label)187020000iso4217:TWD-3
1570001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities (label)196781000iso4217:TWD-3
1580001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod (label)51700000iso4217:TWD-3
1590001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod (label)240500000iso4217:TWD-3
1600001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod (label)397000000iso4217:TWD-3
1610001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)33440160000iso4217:TWD-3
1620001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)46220129000iso4217:TWD-3
1630001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)43881660000iso4217:TWD-3
1640001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:RepaymentsOfBondsNotesAndDebentures (label)563999000iso4217:TWD-3
1650001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:RepaymentsOfBondsNotesAndDebentures (label)0iso4217:TWD-3
1660001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:RepaymentsOfBondsNotesAndDebentures (label)0iso4217:TWD-3
1670001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:RepaymentsOfNoncurrentBorrowings (label)50849749000iso4217:TWD-3
1680001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:RepaymentsOfNoncurrentBorrowings (label)45650997000iso4217:TWD-3
1690001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:RepaymentsOfNoncurrentBorrowings (label)47443813000iso4217:TWD-3
1700001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)449452000iso4217:TWD-3
1710001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)100778000iso4217:TWD-3
1720001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)239006000iso4217:TWD-3

Fact Table
Network
107 - Disclosure - Organization
(http://auo.com/role/Organization)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of notes and other explanatory information [text block]
1.
Organization
 
AU Optronics Corp. (“AUO”) was founded on August 12, 1996 and is located in Hsinchu Science Park, the Republic of China (“ROC”). AUO’s main activities are the research, development, production and sale of thin film transistor liquid crystal displays (“TFT-LCDs”) and other flat panel displays used in a wide variety of applications. AUO also engages in the production and sale of solar modules and systems. AUO’s common shares have been publicly listed on the Taiwan Stock Exchange since September 2000, and its American Depositary Shares (“ADSs”) have been listed on the New York Stock Exchange since May 2002.
 
On September 1, 2001, October 1, 2006 and October 1, 2016, Unipac Optoelectronics Corp. (“Unipac”), Quanta Display Inc. (“QDI”) and Taiwan CFI Co., Ltd. (“CFI”) were merged with and into AUO, respectively. AUO is the surviving Company, whereas Unipac, QDI and CFI were dissolved.
 
The principal operating activities of AUO and its subsidiaries (hereinafter referred to as “the Company”) are described in note 4(c)(2).

Fact Table
Network
108 - Disclosure - The Authorization of Financial Statements
(http://auo.com/role/AuthorizationOfFinancialStatements)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of authorisation of financial statements [text block]
2.
The Authorization of Financial Statements
 
These consolidated financial statements were authorized for issue by the audit committee of the Board of Directors of AUO on March 23, 2018.

Fact Table
Network
109 - Disclosure - New Accounting Pronouncements Under International Financial Reporting Standards (“IFRS”)
(http://auo.com/role/NewAccountingPronouncementsUnderInternationalFinancialReportingStandardsIfrs)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of expected impact of initial application of new standards or interpretations [text block]
3.
New Accounting Pronouncements Under International Financial Reporting Standards (“IFRS”)
 
(a)
New and revised standards, amendments and interpretations in issue but not yet effective
 
In preparing the accompanying consolidated financial statements, the Company has not adopted the following IFRS, International Accounting Standards (IASs), and Interpretations that have been issued by the International Accounting Standards Board (“IASB”) (collectively, “IFRSs”).
 
New, Revised or Amended Standards and Interpretations
 
Effective Date (Note)
 
Amendments to IFRS 2, Share-based Payments - Classification and Measurement of Share-based Payment Transactions
 
January 1, 2018
 
Amendments to IFRS 4, Insurance Contracts - Applying IFRS 9, Financial Instruments with IFRS 4, Insurance Contracts
 
January 1, 2018
 
IFRS 9, Financial Instruments
 
January 1, 2018
 
Amendments to IFRS 9, Prepayment Features with Negative Compensation
 
January 1, 2019
 
Amendments to IFRS 10 and IAS 28, Sale or Contribution of Assets between an Investor and its Associate or Joint Venture
 
Subject to IASB’s announcement
 
IFRS 15, Revenue from Contracts with Customers
 
January 1, 2018
 
IFRS 16, Leases
 
January 1, 2019
 
 
New, Revised or Amended Standards and Interpretations
 
Effective Date (Note)
 
IFRS 17, Insurance Contracts
 
January 1, 2021
 
Amendments to IAS 19, Plan Amendment, Curtailment or Settlement
 
January 1, 2019
 
Amendments to IAS 28, Long-term Interests in Associates and Joint Ventures
 
January 1, 2019
 
Amendments to IAS 40, Transfers of Investment Property
 
January 1, 2018
 
Annual Improvements to IFRSs 2014 – 2016 Cycle:
 Amendments to IFRS 1, First-time Adoption of International Financial Reporting Standards and amendments to IAS 28, Investments in Associates and Joint Ventures
 
January 1, 2018
 
Annual Improvements to IFRSs 2015 – 2017 Cycle
 
January 1, 2019
 
IFRIC 22, Foreign Currency Transactions and Advance Consideration
 
January 1, 2018
 
IFRIC 23, Uncertainty over Income Tax Treatments
 
January 1, 2019
 
  
Note: The aforementioned new, revised and amended standards and interpretations are effective for annual periods beginning on or after the respective effective dates.
 
(b)
Except for the items discussed below, the Company believes that the initial adoption of abovementioned standards or interpretations would not have a material impact on its accounting policies.
 
(1)
IFRS 9, Financial Instruments
 
IFRS 9 replaces the current standards on accounting for financial instruments, IAS 39, Financial Instruments: Recognition and Measurement. IFRS 9 contains three principal classification categories for financial assets: measured at amortized cost, measured at fair value through other comprehensive income (“FVTOCI”) and measured at fair value through profit or loss (“FVTPL”). This Standard eliminates the classification of financial assets under IAS 39 which are held to maturity, loans and receivables and available for sale. In addition, IAS 39 has an exception for the measurement of investments in equity instruments (and related derivatives) that do not have a quoted market price in an active market and for which fair value cannot therefore be measured reliably; such financial instruments are measured at cost. IFRS 9 removes this exception and requires that all equity instruments (and related derivatives) should be measured at fair value.
 
The Company held equity instruments classified as available-for-sale at December 31, 2017. Based on the facts and circumstances that existed on that day and considering the Company’s strategy for holding the equity investments, those equity instruments are classified as FVTPL, or designated as FVTOCI upon the adoption of IFRS 9. With regard to equity instruments designated as FVTOCI aforementioned, except dividend income is recognized in profit or loss, all relevant gains and losses are recognized in other comprehensive income. No impairment losses will be recognized in profit or loss, and the cumulative gains or losses previously recognized in other comprehensive income will not be reclassified to profit or loss on disposal.
 
Under IFRS 9, a new “expected credit loss” model is used to measure the impairment of financial assets. A loss allowance for expected credit losses should be recognized for financial assets measured at amortized cost, investments in debt instruments measured at fair value through other comprehensive income, lease receivables, contract assets that result from transactions that are within the scope of IFRS 15 or financial guarantee contracts and loan commitments. If the credit risk of the abovementioned financial instruments at the reporting date has increased significantly since initial recognition, a loss allowance is measured at an amount equal to lifetime expected credit losses; if the credit risk has not significantly increased, the loss allowance is measured at an amount equal to the 12-month expected credit losses. If the financial instrument is determined to have low credit risk at the reporting date, it may assume that the credit risk thereof has not increased significantly since initial recognition. However, lifetime expected credit loss measurement always applies for trade receivables and contract assets without a significant financing component.
 
The Company elected to apply the simplified approach for trade receivables, contract assets and lease receivables to measure the loss allowance at an amount equal to life time expected credit losses. Based on the Company’s assessment, the application of impairment requirements of IFRS 9 would not have a material impact on its consolidated financial statements.
 
At the initial application of IFRS 9, the Company elected not to restate comparative information for prior years with respect to the classification and measurement (including impairment) changes. The cumulative effect of initially applying this Standard shall be recognized in retained earnings as at January 1, 2018. The Company will disclose information on classification changes and related reconciliation as a result of the application of IFRS 9.
 
(2)
IFRS 15, Revenue from Contracts with Customers
 
IFRS 15 establishes a five-step model framework for recognizing revenue that apply to all contracts with customers, and will replace existing revenue recognition guidance, including IAS 18, Revenue, IAS 11, Construction Contracts, and the related interpretations.
 
(i)
Sales of goods
  
Under IFRS 15, revenue for the sale of goods is recognized when a customer obtains control of the goods. For certain contracts that permit a customer to return goods, revenue is recognized to the extent that it is highly probable that a significant reversal in the amount of cumulative revenue recognized will not occur.
 
For certain contracts with volume discounts to customers, under IFRS 15, revenue is recognized on a net basis of contract price less estimated volume discounts, and only to the extent that it is highly probable that a significant reversal will not occur.
 
Under IFRS 15, a refund liability is measured at the amount of consideration received (or receivable) for which an entity does not expect to be entitled. The refund liability shall be updated at the end of each reporting period for changes in circumstances.
 
Based on the Company’s assessment, the application of IFRS 15 would not result in material differences and impact in the timing of revenue recognition.
 
(ii)
Rendering of services
 
Under IFRS 15, for rendering of services, the consideration of the entire contract is allocated on a basis of a relative stand-alone selling price of the services. The stand-alone selling price is determined based on the list price of service at which the Company sells that service separately.
 
Based on the Company’s assessment, the application of IFRS 15 would not have a material impact on the revenue recognition. 
 
(iii)
Transition
 
The Company elected to apply IFRS 15 using the cumulative effect method, and meanwhile, chose to use the practical expedient for completed contracts. That is, the Company elected to apply this Standard retrospectively only to contracts that are not completed contracts at the date of initial application. The cumulative effect resulting from the initial application of this Standard shall be recognized as an adjustment to retained earnings at January 1, 2018, and the comparative information for prior periods is not required to be restated.  
 
(3)
IFRS 16, Leases
 
IFRS 16 sets out the accounting standards for leases that will replace IAS 17, Leases and the related interpretations.
 
Under IFRS 16, a lessee is required to recognize a right-of-use asset and a lease liability on the statement of financial position for all leases with exception for leases of low-value assets and short-term leases which the Company may elect to apply the accounting method similar to the accounting for operating lease under IAS 17. Additionally, a depreciation expense charged on the right-of-use asset and an interest expense accrued on the lease liability, for which interest is computed by using effective interest method, are recognized separately on the statement of comprehensive income. On the statement of cash flows, cash payments for the principal amount and the interest of the lease liability are generally classified within financing activities.
 
When IFRS 16 becomes effective, as a lessee, the Company may elect to apply this Standard either retrospectively to each prior reporting period presented or retrospectively with a recognition of cumulative effect of the initial adoption of this Standard at the date of initial adoption. As a lessor, the Company is not required to make any adjustments for leases except it is an intermediate lessor in a sub-lease.
 
The Company has performed a preliminary assessment and identification over its current operating leases whether they are in scope of IFRS 16. The main impact to the Company may arise from its lease contracts of land and plant which are currently accounted as operating lease. Please refer to note 23 for the related disclosures. The Company will identify whether a contract that contains a lease meets the definition of a lease under this Standard, and if so, a right-of-use asset and a lease liability shall be recognized. The related impact for adoption of IFRS 16 by the Company will be disclosed when the Company completes the assessment.
 
Except for the aforementioned impacts, as of the date that the accompanying consolidated financial statements were issued, the Company continues in assessing the potential impact on its financial position and results of operations as a result of the application of other standards, interpretations and amendments.

Fact Table
Network
110 - Disclosure - Summary of Significant Accounting Policies
(http://auo.com/role/SummaryOfSignificantAccountingPolicies)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of significant accounting policies [text block]
4.
Summary of Significant Accounting Policies
 
The significant accounting policies applied in the preparation of these consolidated financial statements are set out as below. The significant accounting policies have been applied consistently to all periods presented in these consolidated financial statements.
 
(a)
Statement of compliance
 
The consolidated financial statements have been prepared in accordance with IFRS as issued by the IASB.
 
(b)
Basis of preparation
 
(1)
Basis of measurement
 
The consolidated financial statements have been prepared on the historical cost basis except for the following material items in the consolidated statements of financial position:
 
(i)
Financial instruments measured at fair value through profit or loss (including derivative financial instruments) (note 7);
 
(ii)
Hedging derivative financial instruments measured at fair value (note 7);
 
(iii)
Available-for-sale financial assets measured at fair value (note 8); and
 
(iv)
Defined benefit asset (liability) is recognized as the fair value of the plan assets less the present value of the defined benefit obligation (note 24).
 
(2)
Functional and presentation currency
 
The functional currency of each individual consolidated entity is determined based on the primary economic environment in which the entity operates. The Company’s consolidated financial statements are presented in New Taiwan Dollar (“NTD”), which is also AUO’s functional currency.
 
All financial information presented in NTD has been rounded to the nearest thousand, unless otherwise noted.
 
(c)
Basis of consolidation
 
(1)
Principle of preparation of the consolidated financial statements
 
The Company includes in its consolidated financial statements the results of operations of all controlled entities in which the Company is exposed to, or has rights to, variable returns from its involvement with the entity and has the ability to affect those returns through its power over the entity. All significant inter-company transactions, income and expenses are eliminated in the consolidated financial statements.
 
The financial statements of subsidiaries are included in the consolidated financial statements from the date that control commences until the date that control ceases. Total comprehensive income (loss) in a subsidiary is allocated to the shareholders of AUO and the non-controlling interests even if this results in the non-controlling interests having a deficit balance.
 
Subsidiaries’ financial statements are adjusted to align the accounting policies with those of the Company.
 
Changes in the Company’s ownership interests in a subsidiary that do not result in a loss of control are accounted for as equity transactions. The carrying amounts of the Company’s investment and non-controlling interests are adjusted to reflect the changes in their relative interests in the subsidiary. Any difference between such adjustment and the fair value of the consideration paid or received is recognized directly in equity and attributed to shareholders of AUO.
 
Upon the loss of control, the Company derecognizes the carrying amounts of the assets and liabilities of the subsidiary and non-controlling interests. Any interest retained in the former subsidiary is measured at fair value when control is lost. Any surplus or deficit arising from the loss of control is recognized in profit or loss. The gain or loss is measured as the difference between:
 
(i)
The aggregate of:
 
a.
the fair value of the consideration received, and
 
b.
the fair value of any retained non-controlling investment in the former subsidiary at the date when the Company losses control.
 
(ii)
The aggregate of the carrying amount of the former subsidiary’s assets (including goodwill), liabilities and non-controlling interests at the date when the Company losses control.
 
The Company accounts for all amounts previously recognized in other comprehensive income in relation to that subsidiary on the same basis as would be required if the Company had directly disposed of the related assets or liabilities.
 
(2)
List of subsidiaries in the consolidated financial statements
 
The consolidated entities were as follows:
 
 
 
 
 
 
 
Percentage of Ownership (%)
 
Name of Investor
 
Name of Subsidiary
 
Main Activities and Location
 
December 31, 2017
 
December 31, 2016
 
AUO
 
AU Optronics (L) Corp. (AULB)
 
Holding and trading company (Malaysia)
 
 
100.00
 
 
100.00
 
AUO
 
Konly Venture Corp. (Konly)
 
Venture capital investment (Taiwan ROC)
 
 
100.00
 
 
100.00
 
AUO
 
Ronly Venture Corp. (Ronly)
 
Venture capital investment (Taiwan ROC)
 
 
100.00
 
 
100.00
 
AUO
 
Space Money Inc. (SMI)
 
Sale of TFT-LCD panels; leasing (Taiwan ROC)
 
 
100.00
 
 
100.00
 
AUO
 
U-Fresh Technology Inc. (UTI)
 
Planning, design and development of construction for environmental protection and related project management (Taiwan ROC)
 
 
100.00(1)
 
 
-
 
     
 
 
 
 
 
 
Percentage of Ownership (%)
 
Name of Investor
 
Name of Subsidiary
 
Main Activities and Location
 
December 31, 2017
 
December 31, 2016
 
AUO, Konly and Ronly
 
Darwin Precisions Corporation (DPTW)
 
Manufacturing, design and sale of TFT-LCD modules, TV set, backlight modules and related parts (Taiwan ROC)
 
 
41.05(2)
 
 
51.04
 
AUO, Konly and Ronly
 
Sanda Materials Corporation (SDMC)
 
Holding company (Taiwan ROC)
 
 
99.99
 
 
99.99
 
AUO, Konly and Ronly
 
AUO Crystal Corp. (ACTW)
 
Manufacturing and sale of ingots and solar wafers (Taiwan ROC)
 
 
96.03
 
 
96.31
 
Konly
 
Fargen Power Corporation (FGPC)
 
Renewable energy power generation (Taiwan ROC)
 
 
-(3)
 
 
100.00
 
Konly
 
LiGen Power Corporation (LGPC)
 
Renewable energy power generation (Taiwan ROC)
 
 
100.00
 
 
100.00
 
Konly
 
TronGen Power Corporation (TGPC)
 
Renewable energy power generation (Taiwan ROC)
 
 
-(3)
 
 
100.00(1)
 
Konly
 
ChampionGen Power Corporation (CGPC)
 
Renewable energy power generation (Taiwan ROC)
 
 
100.00(1)
 
 
-
 
ACTW
 
AUO Crystal (Malaysia) Sdn. Bhd. (ACMK)
 
Manufacturing and sale of solar wafers (Malaysia)
 
 
100.00
 
 
100.00
 
SDMC
 
M.Setek Co., Ltd. (M.Setek)
 
Manufacturing and sale of ingots (Japan)
 
 
99.9991
 
 
99.9991
 
AULB
 
AU Optronics Corporation America (AUUS)
 
Sales and sales support of
TFT-LCD panels (United States)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Corporation Japan (AUJP)
 
Sales support of TFT-LCD panels (Japan)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Europe B.V. (AUNL)
 
Sales support of TFT-LCD panels (Netherlands)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Korea Ltd. (AUKR)
 
Sales support of TFT-LCD panels (South Korea)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Singapore Pte. Ltd. (AUSG)
 
Holding company and sales support of TFT-LCD panels (Singapore)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Czech) s.r.o. (AUCZ)
 
Assembly of solar modules (Czech Republic)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Shanghai) Co., Ltd. (AUSH)
 
Sales support of TFT-LCD panels (PRC)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Xiamen) Corp. (AUXM)
 
Manufacturing and assembly of TFT-LCD modules (PRC)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Suzhou) Corp., Ltd. (AUSZ)
 
Manufacturing and assembly of TFT-LCD modules (PRC)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Manufacturing (Shanghai) Corp. (AUSJ)
 
Manufacturing and assembly of TFT-LCD modules (PRC)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Slovakia) s.r.o. (AUSK)
 
Repairing of TFT-LCD modules; injecting and stamping parts; manufacturing and sale of mold (Slovakia Republic)
 
 
100.00
 
 
100.00
 
 
 
 
 
 
 
 
Percentage of Ownership (%)
 
Name of Investor
 
Name of Subsidiary
 
Main Activities and Location
 
December 31, 2017
 
December 31, 2016
 
AULB
 
AFPD Pte., Ltd. (AUST)
 
Manufacturing TFT-LCD panels based on low temperature polysilicon technology (Singapore)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Kunshan) Co., Ltd. (AUKS)
 
Manufacturing and sale of
TFT-LCD panels (PRC)
 
 
51.00
 
 
51.00
 
AULB
 
a.u. Vista Inc. (AUVI)
 
Research and development and IP related business (United States)
 
 
100.00
 
 
100.00
 
AULB and DPTW
 
BriView (L) Corp. (BVLB)
 
Holding company (Malaysia)
 
 
100.00
 
 
100.00
 
AUSG
 
AUO Energy (Tianjin) Corp. (AETJ)
 
Manufacturing and sale of solar modules (PRC)
 
 
100.00
 
 
100.00
 
AUSG
 
AUO Green Energy America Corp. (AEUS)
 
Sale and sales support of solar-related products (United States)
 
 
100.00
 
 
100.00
 
AUSG
 
AUO Green Energy Europe B.V. (AENL)
 
Sales support of solar-related products(Netherlands)
 
 
100.00
 
 
100.00
 
AUXM
 
BriView (Xiamen) Corp. (BVXM)
 
Manufacturing and sale of liquid crystal products and related parts (PRC)
 
 
100.00
 
 
100.00(4)
 
AUSH
 
AUO Care Management (Suzhou)
Co., Ltd. (A-Care)
 
Design, development and sales of software and hardware for health care industry (PRC)
 
 
100.00(1)
 
 
-
 
DPTW
 
Darwin Precisions (L) Corp. (DPLB)
 
Holding company (Malaysia)
 
 
100.00
 
 
100.00
 
DPTW
 
Forhouse International Holding Ltd. (FHVI)
 
Holding company (BVI)
 
 
100.00
 
 
100.00
 
DPTW
 
Force International Holding Ltd. (FRVI)
 
Holding company (BVI)
 
 
100.00
 
 
100.00
 
FHVI
 
Fortech International Corp. (FTMI)
 
Holding company (Mauritius)
 
 
100.00
 
 
100.00
 
FHVI
 
Forward Optronics International Corp. (FWSA)
 
Holding company (Samoa)
 
 
100.00
 
 
100.00
 
FHVI
 
Prime Forward International Ltd. (PMSA)
 
Holding company (Samoa)
 
 
100.00
 
 
100.00
 
FHVI
 
Full Luck Precisions Co., Ltd. (FLMI)
 
Holding company (Mauritius)
 
 
100.00
 
 
100.00
 
FRVI
 
Forefront Corporation (FFMI)
 
Holding company (Mauritius)
 
 
100.00
 
 
100.00
 
FFMI
 
Forthouse Electronics (Suzhou) Co., Ltd. (FHWJ)
 
Manufacturing of motorized treadmills (PRC)
 
 
100.00
 
 
100.00
 
FTMI
 
Fortech Electronics (Suzhou) Co., Ltd. (FTWJ)
 
Manufacturing and sale of light guide plates, backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
FTMI
 
FORTECH OPTRONICS (XIAMEN) CO., LTD. (FTXM)(5)
 
Manufacturing and sale of light guide plates, backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
     
 
 
 
 
 
 
Percentage of Ownership (%)
 
Name of Investor
 
Name of Subsidiary
 
Main Activities and Location
 
December 31, 2017
 
December 31, 2016
 
FWSA and FTMI
 
Suzhou Forplax Optronics Co., Ltd. (FPWJ)
 
Manufacturing and sale of precision plastic parts (PRC)
 
 
100.00
 
 
100.00
 
PMSA
 
Fortech Electronics (Kunshan) Co., Ltd. (FTKS)
 
Manufacturing and sale of light guide plates, backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
FLMI
 
Full Luck (Wujiang) Precisions Co., Ltd. (FLWJ)(5)
 
Manufacturing and sales of precision metal parts (PRC)
 
 
100.00
 
 
100.00
 
DPLB
 
Darwin Precisions (Hong Kong) Limited (DPHK)
 
Holding company (Hong Kong)
 
 
100.00
 
 
100.00
 
DPLB
 
Darwin Precisions (Slovakia) s.r.o. (DPSK)
 
Manufacturing, assembly and sale of automotive parts (Slovakia Republic)
 
 
100.00
 
 
100.00(1)
 
DPHK
 
Darwin Precisions (Suzhou) Corp. (DPSZ)
 
Manufacturing and sale of backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
DPHK
 
Darwin Precisions (Xiamen) Corp. (DPXM)
 
Manufacturing and sale of backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
DPHK
 
Darwin Precisions (Chengdu) Corp. (DPCD)(5)
 
Manufacturing and sale of backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
BVLB
 
BriView (Hefei) Co., Ltd. (BVHF)
 
Manufacturing and sale of liquid crystal products and related parts (PRC)
 
 
100.00
 
 
100.00
 
 
 
Note 1:
TGPC was incorporated in April 2016. DPSK was incorporated in May 2016. UTI was incorporated in January 2017. CGPC was incorporated in May 2017. A-Care was incorporated in September 2017.
 
 
 
 
Note 2:
As at December 31, 2017, although the Company did not own more than 50% of the DPTW’s ownership interests, it was considered to have de facto control over the operating policies of DPTW. As a result, DPTW was accounted for as a subsidiary of the Company. Please refer to note 13 for further details.
 
 
 
 
Note 3:
The Company disposed all its shareholdings in FGPC and TGPC to Star Shining Energy Corporation (“SSEC”), an associate of the Company, in December 2017. Please refer to note 14 for further details.
 
 
 
 
Note 4:
As part of a business restructuring, BVLB disposed all its shareholdings in wholly owned subsidiary, BVXM, to AUXM in March 2016. This transaction has no net effect on the Company’s consolidated financial statements as there was no change in control of BVXM by the Company.
 
 
 
 
Note 5:
DPCD, FLWJ and FTXM have been resolved by their respective boards of directors for liquidation. The liquidation is still in process for these entities as of December 31, 2017.
      
(d)
Foreign currency
 
(1)
Foreign currency transactions
 
Transactions in foreign currencies are translated to the respective functional currencies of the individual entities of the Company at exchange rates at the dates of the transactions. Monetary assets and liabilities denominated in foreign currencies at the reporting date are retranslated to the functional currency at the exchange rate at that date and the resulting exchange differences are included in profit or loss for the year. Non-monetary assets and liabilities denominated in foreign currencies that are measured at fair value are retranslated to the functional currency at the exchange rate at the date when the fair value was determined. The resulting exchange differences are included in profit or loss for the year except for those arising from the retranslation of non-monetary items in respect of which gains and losses are recognized directly in other comprehensive income, in which case, the exchange differences are also recognized directly in other comprehensive income. Non-monetary items in foreign currencies that are measured at historical cost are translated using the exchange rate at the date of the transaction.
 
Exchange differences arising from the effective portion of changes in the fair value of derivatives that are designated and qualified as cash flow hedges are recognized in other comprehensive income.
 
(2)
Foreign operations
 
For the purpose of presenting consolidated financial statements, the assets and liabilities of the Company’s foreign operations are translated into NTD using the exchange rates at each reporting date. Income and expenses of foreign operations are translated at the average exchange rates for the period unless the exchange rates fluctuate significantly during the period; in that case, the exchange rates at the dates of the transactions are used. Foreign currency differences are recognized in other comprehensive income within equity, except to the extent that the translation difference is allocated to non-controlling interests.
 
(e)
Classification of current and non-current assets and liabilities
 
An asset is classified as current when:
 
(1)
The asset expected to realize, or intends to sell or consume, in its normal operating cycle;
 
(2)
The asset primarily held for the purpose of trading;
 
(3)
The asset expected to realize within twelve months after the reporting date; or
 
(4)
Cash and cash equivalent excluding the asset restricted to be exchanged or used to settle a liability for at least twelve months after the reporting date.
  
All other assets are classified as non-current.
 
A liability is classified as current when:
 
(1)
The liability expected to settle in its normal operating cycle;
 
(2)
The liability primarily held for the purpose of trading;
 
(3)
The liability is due to be settled within twelve months after the reporting date; or
 
(4)
The Company does not have an unconditional right to defer settlement of the liability for at least twelve months after the reporting date. Terms of a liability that could, at the option of the counterparty, result in its settlement by the issue of equity instruments, do not affect its classification.
 
All other liabilities are classified as non-current.
 
(f)
Cash and cash equivalents
 
Cash comprise cash balances and demand deposits. Cash equivalents comprise short-term highly liquid investments that are readily convertible into known amounts of cash and are subject to an insignificant risk of changes in their fair value. Deposits with short-term maturity but not for investments and other purposes and are qualified with the aforementioned criteria are classified as cash equivalent.
 
(g)
Financial Instruments
 
Financial assets and financial liabilities are initially recognized when the Company becomes a party to the contractual provisions of the instruments.
 
(1)
Financial assets
 
The Company classifies financial assets into the following categories: financial assets measured at fair value through profit or loss, receivables and available-for-sale financial assets.
 
(i)
Financial assets measured at fair value through profit or loss
 
The Company has certain financial assets classified in this category to hedge its exposure to foreign exchange and interest rate risks arising from operating and financing activities. When a derivative financial instrument is not effective as a hedge the Company accounts for it as a financial asset or liability measured at fair value through profit or loss. See note 4(g)(3) for further detail of the Company’s derivative financial instruments and hedge accounting policy.
 
(ii)
Available-for-sale financial assets
 
Available-for-sale financial assets are non-derivative financial assets that are either designated as available-for-sale or are not classified as receivables or financial assets measured at fair value through profit or loss. Available-for-sale financial assets are recognized initially at fair value, plus any directly attributable transaction cost. Subsequent to initial recognition, they are measured at fair value and changes therein, other than impairment losses, dividend income and foreign currency differences related to monetary financial assets, are recognized in other comprehensive income and presented within equity in unrealized gains (losses) on available-for-sale financial assets. When an investment is derecognized, the cumulative gain or loss in equity is reclassified to profit or loss. A regular way, purchase or sale of financial assets shall be recognized and derecognized, as applicable, using trade date accounting.
 
Investments in equity instruments that do not have a quoted market price in an active market, and whose fair value cannot be reliably measured, are carried at their cost less any impairment losses.
 
Cash dividends on equity instruments are recognized in profit or loss on the date that the Company’s right to receive dividends is established.
 
(iii)
Receivables
 
Receivables are financial assets with fixed or determinable payments that are not quoted in an active market. Receivables comprise trade receivables and other receivables. Such assets are recognized initially at fair value, plus any directly attributable transaction costs. Subsequently, receivables are measured at amortized cost using the effective interest method, less any impairment. If the effect of discounting is immaterial, the short-term receivables are measured at the original amount.
 
(iv)
Impairment of financial assets
 
Financial assets not measured at fair value through profit or loss are assessed at each reporting date for indicators of impairment. Financial assets are considered to be impaired if an objective evidence indicates that, as a result of one or more events that occurred after the initial recognition of the financial asset, the estimated future cash flows of those assets have been negatively impacted.
 
When an available-for-sale equity security is considered to be impaired, cumulative gains or losses previously recognized in other comprehensive income are reclassified to profit or loss. Such impairment losses are not reversed through profit or loss. However, any subsequent recovery in the fair value of an impaired available-for-sale equity security is recognized in other comprehensive income and accumulated in other components of equity.
  
For receivables, the Company first assesses whether objective evidence of impairment exists that are individually significant. If there is objective evidence that an impairment loss has occurred, the amount of impairment loss is assessed individually. For receivables other than those aforementioned, the Company groups those assets and collectively assesses them for impairment. An impairment loss for trade receivables is reflected in an allowance account against the receivables. When it is determined a receivable is uncollectible, it is written off from the allowance account. Any subsequent recovery of receivable previously written off is credited against the allowance account. Changes in the amount of the allowance accounts are recognized in profit or loss.
 
For equity instruments without a quoted market price in an active market, the objective evidence of impairment includes the investees’ financial information, current operating result, future business plans and relevant industry and public market information. An impairment loss for this kind of equity instruments is reduced from the carrying amount and any impairment loss recognized is not reversed through profit or loss in subsequent periods.
 
Bad debt expenses and reversal of allowance for doubtful debts for trade receivables are recognized in general and administrative expenses while impairment losses and reversal of impairment for financial assets other than receivables are recognized in other gains and losses.
 
(v)
De-recognition of financial assets
 
The Company derecognizes financial assets when the contractual rights of the cash inflow from the asset are terminated, or when the Company transfers substantially all the risks and rewards of ownership of the financial assets to another entity.
 
On de-recognition of a financial asset in its entirety, the difference between the carrying amount and the sum of the consideration received or receivable and any cumulative gain or loss that had been recognized in other comprehensive income is recognized in profit or loss.
 
(2)
Financial liabilities
 
The Company classifies financial liabilities into the following categories: convertible bonds, financial liabilities measured at fair value through profit or loss and other financial liabilities.
 
(i)
Convertible bonds
 
Convertible bonds issued by AUO give bondholders the right to convert bonds into a given number of equity instruments of AUO at a specific conversion price. The derivatives embedded in the convertible bonds are recognized initially at fair value in financial liabilities measured at fair value through profit or loss. The difference between the par value of the convertible bonds and the fair value of the derivatives is recognized in convertible bonds payable.
 
Subsequent to initial recognition, the liability component of the convertible bonds is measured at amortized cost using the effective interest method. Convertible option is measured at fair value using Least Square Monte Carlo simulation and changes therein are recognized in profit or loss.
 
Transaction costs that relate to the issue of the convertible bonds are allocated to the liability and the convertible option components in proportion to their relative fair value. Transaction costs allocated to the convertible option are recognized directly in profit or loss. Transaction costs allocated to the liability component are included in the initial carrying amount of the liability component and amortized using the effective interest method.
 
(ii)
Financial liabilities measured at fair value through profit or loss
 
The Company designates financial liabilities in this category as held for trading for the purpose of hedging exposure to foreign exchange and interest rate risks arising from operating and financing activities. When a derivative financial instrument is not effective as a hedge the Company accounts for it as a financial asset or liability measured at fair value through profit or loss. See note 4(g)(3) for further detail of the Company’s derivative financial instruments and hedge accounting policy.
 
The Company designates financial liabilities, other than the one mentioned above, as measured at fair value through profit or loss at initial recognition. Attributable transaction costs are recognized in profit or loss as incurred. Financial liabilities in this category are subsequently measured at fair value and changes therein, which takes into account any interest expense, are recognized in profit or loss.
 
(iii)
Other financial liabilities
 
Financial liabilities not classified as held for trading, or not designated as measured at fair value through profit or loss (including loans and borrowings, trade and other payables), are measured at fair value, plus any directly attributable transaction cost at the time of initial recognition. Subsequent to initial recognition, they are measured at amortized cost calculated using the effective interest method, except for insignificant recognition of interest expense from short-term borrowings and trade payables. Interest expense not capitalized as an asset cost is recognized in profit or loss.
     
(iv)
De-recognition of financial liabilities
 
The Company derecognizes financial liabilities when the contractual obligation has been discharged, cancelled or expired. The difference between the carrying amount and the consideration paid or payable, including any non-cash assets transferred or liabilities assumed is recognized in profit or loss.
 
(v)
Offsetting of financial assets and liabilities
 
The Company presents financial assets and liabilities on a net basis when the Company has the legally enforceable rights to offset, and intends to settle such financial assets and liabilities on a net basis or to realize the assets and settle the liabilities simultaneously.
 
(3)
Derivative financial instruments and hedge accounting
 
The Company holds derivative financial instruments to hedge its foreign currency and interest rate exposures. Derivatives are recognized initially at fair value, and attributable transaction costs are recognized in profit or loss as incurred. Subsequent to initial recognition, derivatives are measured at fair value, and changes therein are recognized in profit or loss.
 
When a derivative is designated as a hedging instrument, its timing of recognition in profit or loss is determined based on the nature of the hedging relationship. When the fair value of a derivative instrument is positive, it is classified as a financial asset, and when the fair value is negative, it is classified as a financial liability.
 
When a derivative is designated as a cash flow hedge, the changes in the fair value of the derivative that is determined to be effective is recognized in other comprehensive income and accumulated in other components of equity – unrealized gains (losses) on cash flow hedges. Any ineffective portion of changes in the fair value of the derivative is recognized in profit or loss.
 
When the hedged item is recognized in profit or loss, amounts previously recognized in other comprehensive income and accumulated in equity are reclassified to profit or loss in the same period or periods during which the hedged item affects profit or loss, and it is presented in the same accounting caption with the hedged item recognized in the consolidated statements of comprehensive income. When a cash flow hedge is expected to recognize as a non-financial asset or liability, amounts previously recognized in other comprehensive income and accumulated in other components of equity – unrealized gains (losses) on cash flow hedges are reclassified as the initial cost of the non-financial asset or liability.
 
(h)
Inventories
 
The cost of inventories includes all necessary expenditures and charges for bringing the inventory to a stable, useable and marketable condition and location. Inventories are recorded at cost, and cost is determined using the weighted-average method. The production overhead is allocated based on the normal capacity of the production facilities. Inventories are measured at the lower of cost or net realizable value. Net realizable value for raw materials is based on replacement cost. Net realizable value for finished goods and work in process is calculated based on the estimated selling price less all estimated costs of completion and necessary selling costs.
 
(i)
Noncurrent assets held for sale
 
Noncurrent assets are classified as held for sale when their carrying amounts are expected to be recovered primarily through sale rather than through continuing use. Such noncurrent assets must be available for immediate sale in their present condition and the sale is highly probable within one year. When classified as held for sale, the assets are measured at the lower of their carrying amount and fair value less costs to sell. Impairment losses on initial classification as held for sale and subsequent gains or losses on re-measurement are recognized in profit or loss. However, subsequent gains are not recognized in excess of the cumulative impairment loss that has been recognized.
 
When intangible assets and property, plant and equipment are classified as held for sale, they are no longer amortized or depreciated. In addition, once an equity-accounted investee is classified as held for sale, it is no longer equity accounted.
 
(j)
Investments in associates
 
Associates are those entities in which the Company has the power to exercise significant influence, but not control or joint control, over their financial and operating policies.
 
Investments in associates are accounted for using the equity method and are recognized initially at cost. The cost of the investment includes transaction costs. The carrying amount of the investment in associates includes goodwill, which is arising from the acquisition, less any accumulated impairment losses.
 
The difference between acquisition cost and fair value of associates’ identifiable assets and liabilities as of the acquisition date is accounted for as goodwill. Goodwill is included in the original investment cost of acquired associates and is not amortized. If the fair value of identified assets and liabilities is in excess of acquisition cost, the remaining excess over acquisition cost is recognized as a gain in profit or loss.
 
If an equity security is not acquired through cash, that is, by providing services or other assets, then the fair value of such security or the fair value of the services or assets surrendered, whichever is more objectively determinable, is the purchase price of the security. If an equity investment of associates is acquired by providing subsequent services and the cost is determined based on the fair value of such services, the Company defers and recognizes revenue using a reasonable amortization method over the future period when the service is rendered.
 
The consolidated financial statements include the Company’s share of the profit or loss and other comprehensive income of associates, after adjustments to align the accounting policies with those of the Company, from the date that significant influence commences until the date that significant influence ceases. When an associate incurs changes in its equity not derived from profit or loss and other comprehensive income, the Company recognizes all the equity changes in proportion to its ownership interest in the associate as capital surplus provided that the ownership interest in the associate remains unchanged.
 
The Company discontinues the use of the equity method from the date when the Company ceases to have significant influence over an associate, and then measures the retained interests at fair value at that date. The difference between the carrying amount of the investment at the date the equity method was discontinued and the fair value of the retained interests along with any proceeds from disposing of a part interest in the associate is recognized in profit or loss. Moreover, the Company accounts for all amounts previously recognized in other comprehensive income in relation to that investment on the same basis as would be required if the associate had directly disposed of the related assets or liabilities.
 
If the Company’s ownership interest in an associate is reduced, but the Company continues to apply the equity method, the Company shall reclassify to profit or loss the proportion of the gain or loss that had previously been recognized in other comprehensive income relating to that reduction in ownership interest on the same basis as mentioned above.
 
If an investment in an associate becomes an investment in a joint venture or an investment in a joint venture becomes an investment in an associate, the Company continues to account for the investment using equity method and does not remeasure the interest previously held.
 
When the Company subscribes for additional shares in an associate at a percentage different from its existing ownership percentage, the resulting carrying amount of the investment differs from the amount of the Company’s proportionate interest in the net assets of the associate. The Company records such a difference as an adjustment to investments with the corresponding amount charged or credited to capital surplus. If the capital surplus arising from investment accounted for under the equity method in associates is insufficient to offset with the said corresponding amount, the differences will be charged or credited to retained earnings. If the Company’s ownership interest is reduced due to circumstances as mentioned above, but the Company continues to apply the equity method, the Company shall reclassify to profit or loss the proportion of the gain or loss that had previously been recognized in other comprehensive income relating to that reduction in ownership interest if that gain or loss would be required to be reclassified to profit or loss on the disposal of the related assets or liabilities.
 
At the end of each reporting period, if there is any indication of impairment, the entire carrying amount of the investment including goodwill is tested for impairment as a single asset, by comparing its recoverable amount with its carrying amount. An impairment loss recognized forms part of the carrying amount of the investment in associates. Accordingly, any reversal of that impairment loss is recognized to the extent that the recoverable amount of the investment subsequently increases.
 
Unrealized profits resulting from the transactions between the Company and associates are eliminated to the extent of the Company’s interest in the associate. Unrealized losses on transactions with associates are eliminated in the same way, except to the extent that the underlying asset is impaired.
 
When the Company’s share of losses exceeds its interest in an associate, the carrying amount of that interest, including any long-term investments that form part thereof, is reduced to zero, and the recognition of further losses is discontinued except to the extent that the Company has a legal or contractual obligation, or has made payments on behalf of the investee.
 
(k)
Investments in joint ventures
 
Joint venture is a joint arrangement whereby the Company and other parties agreed to share the control of the arrangement, and have rights to the net assets of the arrangement. Unanimous consent from the parties sharing control is required when making decisions for the relevant activities of the arrangement. Investments in joint venture are accounted for in the Company’s consolidated financial statements under the equity method which is consistent with the accounting policy for investments in associates.
 
(l)
Investment property
 
Investment property is the property held either to earn rental income or for capital appreciation or for both, but not for sale in the ordinary course of business, use in the production or supply of goods or services or for administrative purposes. Investment property is measured at cost on initial recognition. Subsequent to initial recognition, investment properties are measured at original acquisition cost less any subsequent accumulated depreciation. Depreciation methods, useful lives and residual values are in accordance with the policy of property, plant and equipment. Cost includes expenditure that is directly attributable to the acquisition of the investment property.
 
An investment property is reclassified to property, plant and equipment at its carrying amount when the use of the investment property changes.
 
(m)
Property, plant and equipment
 
(1)
Recognition and measurement
 
Items of property, plant and equipment are measured at cost less accumulated depreciation and accumulated impairment losses. Cost includes expenditure that is directly attributed to the acquisition of the asset, any cost directly attributable to bringing the asset to the location and condition necessary for it to be capable of operating in the manner intended by management, the initial estimate of the costs of dismantling and removing the item and restoring the site on which it is located, and any borrowing cost that is eligible for capitalization. The cost of the software is capitalized as part of the equipment if the purchase of the software is necessary for the equipment to be capable of operating.
 
When part of an item of property, plant and equipment with a cost that is significant in relation to the total cost of the item and the useful life or the depreciation method of the significant part is different from another significant part of that same item, it is accounted for as a separate item (significant component) of property, plant and equipment.
 
The gain or loss arising from the derecognition of an item of property, plant and equipment is determined as the difference between the net disposal proceeds, if any, and the carrying amount of the item, and is recognized in profit or loss.
 
(2)
Subsequent costs
 
Subsequent expenditure is capitalized only when it is probable that the future economic benefits associated with the expenditure will flow to the Company and the cost of the item can be measured reliably. The carrying amount of those parts that are replaced is derecognized to profit or loss. Ongoing repairs and maintenance expenses are recognized in profit or loss as incurred.
 
(3)
Depreciation
 
Excluding land, depreciation is recognized in profit or loss and provided over the estimated useful lives of the respective assets, considering significant components of an individual asset, on a straight-line basis less any residual value. If a component has a useful life that is different from the remainder of that asset, that component is depreciated separately.
 
Leased assets are depreciated over the shorter of the lease term and their useful lives unless it is reasonably certain that the Company will obtain ownership by the end of the lease term.
 
The estimated useful lives of the assets, except for land are as follows:
 
(i)
Buildings: 20~50 years
 
(ii)
Machinery and equipment: 3~10 years
 
(iii)
Other equipment: 3~6 years
 
Depreciation methods, useful lives, and residual values are reviewed at each annual reporting date and, if necessary, adjusted as appropriate. Any changes therein are accounted for as changes in accounting estimates.
 
(4)
Reclassification to investment property
 
A property is reclassified to investment property at its carrying amount when the use of the property changes from owner-occupied to investment purpose.
 
(n)
Long-term prepaid rent
 
Long-term prepaid rent is for the right to use of land (classified as other noncurrent assets), which is amortized over the shorter of economic useful life or the covenant period on a straight-line basis.
 
(o)
Leases
 
(1)
Lessor
 
Lease income from an operating lease is recognized in profit or loss on a straight-line basis over the lease term. Initial direct costs incurred in negotiating and arranging an operating lease are added to the carrying amount of the leased asset and recognized as an expense on a straight-line basis over the lease term.
 
(2)
Lessee
 
Payments made under operating lease (excluding insurance and maintenance expenses) are recognized in profit or loss on a straight-line basis over the term of the lease.
 
(p)
Intangible assets
 
(1)
Goodwill
 
Goodwill is recognized when the purchase price exceeds the fair value of identifiable net assets acquired in a business combination. Goodwill is measured at cost less accumulated impairment losses.
 
Investor-level goodwill is included in the carrying amounts of the equity investments. The impairment losses for the goodwill within the equity-accounted investees are accounted for as deductions of carrying amounts of investments in equity-accounted investees.
 
(2)
Research and development
 
During the research phase, activities are carried out to obtain and understand new scientific or technical knowledge. Expenditures during this phase are recognized in profit or loss as incurred.
 
Expenditure arising from development is capitalized as an intangible asset when the Company demonstrates all of the following:
 
(i)
the technical feasibility of completing the intangible asset so that it will be available for use or sale;
 
(ii)
its intention to complete the intangible asset and use or sell it;
 
(iii)
its ability to use or sell the intangible asset;
 
(iv)
the probability that the intangible asset will generate probable future economic benefits;
 
(v)
the availability of adequate technical, financial and other resources to complete the development and to use or sell the intangible asset; and
 
(vi)
its ability to measure reliably the expenditure attributable to the intangible asset during its development.
 
Development expenditure which fails to meet the criteria for recognition as an intangible asset is reflected in profit or loss when incurred. Capitalized development expenditure is measured at cost less accumulated amortization and any accumulated impairment losses.
 
(3)
Other intangible assets
 
Other intangible assets acquired are measured at cost less accumulated amortization and any accumulated impairment losses.
 
(4)
Subsequent expenditure
 
Subsequent expenditure is capitalized only when it increases the future economic benefits embodied in the specific asset to which it relates. All other expenditure, including expenditure on internally generated goodwill and brands, is recognized in profit or loss as incurred.
 
(5)
Amortization
 
The depreciable amount of an intangible asset is the cost less its residual value. Other than goodwill and intangible assets with indefinite useful life, an intangible asset with a finite useful life is amortized over 3 to 20 years using the straight-line method from the date that the asset is made available for use. The amortization charge is recognized in profit or loss.
 
The residual value, amortization period, and amortization method are reviewed at least annually at each annual reporting date, and any changes therein are accounted for as changes in accounting estimates.
 
(q)
Impairment – non-financial assets
 
Other than inventories, deferred tax assets and noncurrent assets held for sale, the carrying amounts of the Company’s investment property measured at cost and long-term non-financial assets (property, plant and equipment and other intangible assets with finite useful lives), are reviewed at the reporting date to determine whether there is any indication of impairment. When there is an indication of impairment exists for the aforementioned assets, the recoverable amount of the asset is estimated. If it is not possible to estimate the recoverable amount of an individual asset, the Company estimates the recoverable amount of the cash-generating unit (“CGU”) to which the asset has been allocated to.
 
In performing an impairment test for the aforementioned assets, the estimated recoverable amount is evaluated in terms of an asset or a CGU. Any excess of the carrying amount of the asset or its related CGU over its recoverable amount is recognized as an impairment loss. The recoverable amount of an asset or a CGU is the higher of its fair value less costs of disposal and its value in use.
 
If there is evidence that the accumulated impairment loss of an asset other than goodwill and intangible assets with indefinite useful lives in prior years no longer exists or has diminished, the amount previously recognized as an impairment loss is reversed, and the carrying amount of the asset or CGU is increased to the revised estimate of its recoverable amount. The increase in the carrying amount shall not exceed the carrying amount (net of depreciation or amortization) had no impairment loss been recognized for the asset in prior years.
 
For goodwill and intangible assets with indefinite useful lives or that are not yet available for use, are required to be tested for impairment at least annually. Any excess of the carrying amount of the asset over its recoverable amount is recognized as an impairment loss. Goodwill acquired in a business combination is allocated to CGUs that are expected to benefit from the synergies of the combination. Impairment losses recognized in respect of a CGU are allocated first to reduce the carrying amount of any goodwill allocated to the unit, then the carrying amounts of the other assets in the unit on a pro rata basis. The impairment loss recognized on goodwill and intangible assets with indefinite useful lives is not reversed.
 
(r)
Provisions
 
A provision is recognized for a legal or constructive obligation arising from a past event, if there is probable outflow of resources and the amount can be estimated reliably. Provisions are determined by discounting the expected future cash flows at a pre-tax rate that reflects the current market assessments of the time value of money and the risks specific to the liability. The unwinding of the discount is recognized as interest expense.
 
(1)
Warranties
 
A provision for warranties is recognized when the underlying products or services are sold. The provision is weighting factors based on historical experience of warranty claims rate and other possible outcomes against their associated probabilities.
 
(2)
Decommissioning obligation
 
The Company is subject to decommissioning obligations related to certain items of property, plant and equipment. Such decommissioning obligations are primarily attributable to clean-up costs, including deconstruction, transportation, and recover costs. The unwinding of the discount based on original discount rate is recognized in profit or loss as interest expense over the periods with corresponding increase in the carrying amounts of the accrued decommissioning costs. The carrying amount of the accruals at the end of the assets’ useful lives is the same as the estimated decommissioning costs.
 
(3)
Onerous contracts
 
A provision for onerous contracts is recognized when the expected benefits to be derived by the Company from a contract are lower than the unavoidable cost of meeting its obligations under the contract. The provision is measured at the present value of the lower of the expected cost of terminating the contract and the expected net cost of continuing with the contract. Before a provision is established, the Company recognizes any impairment loss on the assets associated with that contract.
 
(4)
Loss contingencies
 
Provision for loss contingencies arising from claims, assessments, litigation, fines, and penalties and other sources are recognized when it is probable the present obligation as a result of a past event will result in an outflow of resources and the amount can be reasonably estimated. Legal costs incurred in connection with loss contingencies are expensed as incurred. Management periodically assesses the obligation of all litigation and claims and relative legal costs. Such provisions are adjusted as further information becomes known or circumstances change.
 
Provisions recognized are the best estimates of the consideration for settling the present obligation at each reporting date.
 
(s)
Revenue recognition
 
(1)
Goods sold
 
Revenue from the sale of goods in the course of ordinary activities is measured at the fair value of the consideration received or receivable, net of returns, trade discounts and volume rebates. Revenue is recognized when the significant risks and rewards of ownership have been transferred to the customer, recovery of the consideration is probable, the associated costs and possible return of goods can be estimated reliably, there is no continuing management involvement with the goods, and the amount of revenue can be measured reliably. If it is probable that discounts will be granted and the amount can be measured reliably, then the discount is recognized as a reduction of revenue as the sales are recognized.
 
The timing of the transfers of risks and rewards varies depending on the individual terms of the sales agreement.
 
(2)
Government grants
 
Grants that compensate the Company for research and development expenses incurred are recognized as other income in profit or loss on a systematic basis in the periods in which the expenses are recognized. Other grants from government that becomes receivable as compensation for expenses or losses already incurred or for the purpose of giving immediate financial support to the Company with no future related costs are recognized in profit or loss of the period in which it becomes receivable.  
 
(t)
Employee benefits
 
(1)
Defined contribution plans
 
Obligations for contributions to defined contribution pension plans are recognized as an employee benefit expense in profit or loss in the periods during which services are rendered by employees.
 
(2)
Defined benefit plans
 
The Company’s net obligation in respect of defined benefit pension plans is calculated separately for each benefit plan by estimating the amount of future benefit that employees have earned in the current and prior periods, discounting that amount and deducting the fair value of any plan assets. Discount rate is determined by reference to the yield rate of Taiwan government bonds at the reporting date. The calculation of defined benefit obligations is performed annually by a qualified actuary using the Projected Unit Credit Cost Method.
 
Remeasurements of the net defined benefit liability (asset) which comprise actuarial gains and losses, the return on plan assets (excluding interest) and the effect of the asset ceiling (if any, excluding interest), are recognized in other comprehensive income in the period in which they occur, and which then are reflected in retained earnings and will not be reclassified to profit or loss.
 
(3)
Short-term employee benefits
 
Short-term employee benefit obligations, which are due to be settled within twelve months are measured on an undiscounted basis and are expensed as the related service is provided.
 
The expected cost of cash bonus or profit-sharing plans, which is anticipated to be paid within one year, are recognized as a liability when the Company has a present legal or constructive obligation to pay this amount as a result of past service provided by the employee, and the obligation can be estimated reliably.
 
(u)
Share-based payment arrangements
 
The compensation cost of employee share-based payment arrangements is measured based on the fair value at the date on which they are granted. The compensation cost is recognized, together with a corresponding increase in equity, over the periods in which the performance and/or service conditions are being fulfilled. The cumulative expense recognized for share-based payment arrangements at each reporting date reflects the extent to which the vesting period has passed and the Company’s estimate of the quantity of equity instruments that will ultimately vest.
 
For share-based payment awards with non-vesting conditions, the grant-date fair value of the share-based payment is measured to reflect such conditions, and there is no true-up for differences between expected and actual outcomes.
 
(v)
Income taxes
 
Income tax expense comprises current and deferred taxes.
 
(1)
Current taxes
 
Current taxes comprise the expected tax payable or receivable on the taxable income or losses for the year and any adjustments to tax payable or receivable in respect of previous years. It is measured using tax rates enacted or substantively enacted tax rate at the reporting date.
 
In accordance with the ROC Income Tax Act, undistributed earnings from the companies located in the Republic of China, if any, is subject to an additional 10% surtax. The 10% tax on unappropriated earnings is recognized during the period the earnings arise and adjusted to the extent that distributions are approved by the shareholders in the following year.
  
(2)
Deferred taxes
 
Deferred taxes are recognized in respect of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Deferred tax liabilities are recognized for temporary difference of future taxable income.
 
Deferred tax assets are recognized for unused tax losses, unused tax credits and deductible temporary differences to the extent that it is probable that future taxable profits will be available against which they can be utilized. Future taxable profits are determined based on the reversal of relevant taxable temporary differences. If the amount of taxable temporary differences is insufficient to recognize a deferred tax asset in full, then future taxable profits are considered based on the business plans for individual subsidiaries in the Company and adjusted for reversals of existing temporary differences. Deferred tax assets are reviewed at each reporting date and reduced to the extent that it is no longer probable that the related tax benefit will be realized, by considering nature of industry cycles, statutory tax deduction years and projected future taxable income. Deferred tax assets which originally not recognized is also reviewed at each reporting date and recognized to the extent that it is probable that future taxable profits will be available to allow all or part of the deferred tax asset to be recovered.
 
Deferred taxes liabilities are recognized for taxable temporary differences related to investments in subsidiaries, associates and joint arrangements, however, if the Company is able to control the timing of the reversal of the taxable temporary differences and it is probable that they will not reverse in the foreseeable future, deferred taxes are not recognized.
 
Deferred tax is measured at the tax rates that are expected to be applied to temporary differences when the reverse, using tax rates enacted or substantively enacted tax rate on the reporting date. Deferred tax assets and liabilities are offset only if certain criteria are met.
 
Current taxes and deferred taxes are recognized in profit or loss except to the extent that it relates to items recognized directly in equity or other comprehensive income.
 
(w)
Business combinations
 
The Company accounts for business combinations using the acquisition method. The consideration transferred in the acquisition is measured at fair value, as are identifiable net assets acquired. Goodwill is measured as the excess of the aggregate of the consideration transferred and the amount of any non-controlling interests in the acquiree over the net identifiable assets acquired and liabilities assumed. If the fair value of the net assets acquired is in excess of the aggregate consideration transferred, after reassessing all of the assets acquired and all of the liabilities assumed being properly identified, the difference is recognized in profit or loss as a gain on bargain purchase.
 
Acquisition-related costs are expensed as incurred, except that the costs are related to the issue of debt or equity securities.
 
Each identifiable asset and liability is measured at its acquisition-date fair value. Non-controlling interests in an acquiree that are present ownership interests and entitle their holders to a proportionate share of the entity’s net assets in the event of liquidation are measured at either fair value or the present ownership instruments’ proportionate share in the recognized amounts of the acquiree’s net identifiable assets. All other components of non-controlling interests shall be measured at their acquisition-date fair values, unless another measurement basis is required by IFRSs.
 
(x)
Earnings (loss) per share
 
Basic earnings (loss) per share is computed by dividing profit or loss attributable to the shareholders of AUO by the weighted-average number of common shares outstanding during the period. In computing diluted earnings per share, profit or loss attributable to the shareholders of AUO and the weighted-average number of common shares outstanding during the period are adjusted for the effects of dilutive potential common stock, assuming dilutive share equivalents had been issued. The weighted-average outstanding shares are retroactively adjusted for the effects of stock dividends transferred from retained earnings and capital surplus to common stock.
 
(y)
Operating segments
 
An operating segment is a component of an entity: (1) that engages in business activities from which it may earn revenue and incur expenses (including revenues and expenses relating to transactions with other components of the same entity), (2) whose operating results are reviewed regularly by the entity’s chief operating decision maker (“CODM”) to make decisions pertaining to the allocation of resources to the segment and to assess its performance, and (3) for which discrete financial information is available. Management has determined that the Company has two operating segments: display and solar.
 
The accounting policies for the operating segments are the same as those used in the preparation of the consolidated financial statements of the Company. Segment profit (loss) is determined by deducting selling, administrative and research and development expenses from gross profit. Segment profit (loss) excludes long-lived asset impairments, gains and losses on disposal of assets, litigation provisions, foreign currency exchange gains or losses, finance cost, income taxes, share of profit (loss) from equity-accounted investees, and other miscellaneous income and expenses. The CODM does not receive asset and liability information by operating segment. Consequently, no operating segment asset and liability information is disclosed. Geographic net revenue information is based upon the location of customers placing orders.

Fact Table
Network
111 - Disclosure - Use of Judgments and Estimates
(http://auo.com/role/UseOfJudgmentsAndEstimates)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of changes in accounting estimates [text block]
5.
Use of Judgments and Estimates
 
The preparation of the consolidated financial statements in conformity with IFRSs requires management to make judgments, estimates and assumptions that affect the application of the accounting policies and the reported amount of assets, liabilities, income and expenses. Actual results may differ from these estimates.
 
Estimates and underlying assumptions are reviewed by management on an ongoing basis. Revisions to accounting estimates are recognized in the period in which the estimates are revised and in any future periods affected.
 
Information about critical judgments, estimates and assumptions in applying accounting policies that have the most significant effect on the amounts recognized in the consolidated financial statements is included in the following notes:
 
(a)
Estimate of provisions
 
Provision for warranty is estimated when product revenue is recognized. The estimate has been made based on the quantities within the warranty period, the historical and anticipated warranty claims rate associated with similar products and services, and the projected unit cost of maintenance. The Company regularly reviews the basis of the estimate and if necessary, amends it as appropriate. There could be a significant impact on provision for warranty for any changes of the basis of the estimate.
 
Provision for unsettled litigation and claims is recognized when it is probable that it will result in an outflow of the Company’s resources and the amount can be reasonably estimated. While the ultimate resolution of litigation and claims cannot be predicted with certainty, the final outcome or the actual cash outflow may be materially different from the estimated liability.
 
(b)
Impairment of long-term non-financial assets, other than goodwill
 
In the process of evaluating the potential impairment of tangible and intangible assets other than goodwill, the Company is required to make subjective judgments in determining the independent cash flows, useful lives, expected future income and expenses related to the specific asset groups with the consideration of the nature of industry. Any changes in these estimates based on changed economic conditions or business strategies could result in significant impairment charges or reversal in future years.
 
(c)
Measurement of defined benefit obligations
 
Accrued pension liabilities and the resulting pension expenses under defined benefit pension plans are calculated using the Projected Unit Credit Cost Method. Actuarial assumptions comprise the discount rate, rate of employee turnover, long-term average future salary increase, etc. Changes in economic circumstances and market conditions will affect these assumptions and may have a material impact on the amount of the expense and the liability.
 
(d)
Recognition of deferred tax assets
 
Deferred tax assets are recognized to the extent that it is probable that future taxable profits will be available against which those deferred tax assets can be utilized. Assessment of the realization of the deferred tax assets requires management’s subjective judgment and estimate, including the future revenue growth and profitability, the sources of taxable income, the amount of tax credits can be utilized and feasible tax planning strategies. Changes in the economic environment, the industry trends and relevant laws and regulations may result in adjustments to the deferred tax assets.
 
(e)
Estimate of allowance for sales returns and discounts
 
The Company estimates future sales returns and other allowances in the same period the related revenue is recognized. Estimated sales returns and other allowances are generally made and adjusted based on historical experience, management’s judgment and any known factors that would significantly affect the allowance, and management periodically reviews the reasonableness of the estimates.
 
(f)
Valuation of inventories
 
As inventories are stated at the lower of cost or net realizable value, the Company estimates the net realizable value of inventories for obsolescence and unmarketable items at the end of reporting period and then writes down the cost of inventories to net realizable value. The net realizable value of the inventory is mainly determined based on assumptions of future demand within a specific time horizon. Due to the rapid industrial transformation, there may be significant changes in the net realizable value of inventories.

Fact Table
Network
112 - Disclosure - Cash and Cash Equivalents
(http://auo.com/role/CashAndCashEquivalents)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of cash and cash equivalents [text block]
6.
Cash and Cash Equivalents
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Cash on hand, demand deposits and checking accounts
 
$
40,871,878
 
 
42,389,461
 
Time deposits
 
 
57,438,459
 
 
37,676,746
 
Government bonds with reverse repurchase agreements
 
 
6,710,279
 
 
125,041
 
 
 
$
105,020,616
 
 
80,191,248
 
 
Refer to note 36 for the disclosure of credit risk, currency risk and sensitivity analysis of the financial assets and liabilities of the Company.
 
As at December 31, 2017 and 2016, no cash and cash equivalents were pledged with banks as collaterals.

Fact Table
Network
113 - Disclosure - Derivative Financial Instruments and Hedging Instruments
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstruments)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory (label)
7.
Derivative Financial Instruments and Hedging Instruments
 
(1)
Derivative Financial Instruments
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
 
 
 
 
 
 
 
 
(in thousands)
 
Financial assets measured at fair value through profit or loss – current:
 
 
 
 
 
 
 
Foreign currency forward contracts
 
$
70,366
 
 
65,669
 
 
 
 
 
 
 
 
 
Financial liabilities measured at fair value through profit or loss – current:
 
 
 
 
 
 
 
Foreign currency forward contracts
 
$
106,597
 
 
896,998
 
 
 
 
 
 
 
 
 
Hedging derivative financial liabilities – current:
 
 
 
 
 
 
 
Interest rate swap contracts
 
$
-
 
 
3,540
 
 
Refer to note 36 for the disclosure of the Company’s credit, currency and interest rate risks related to financial instruments.
 
As of December 31, 2017 and 2016, outstanding foreign currency forward contracts were as follows:
 
December 31, 2017
Contract item
 
Maturity date
 
Contract amount
 
 
 
 
(in thousands)
Sell USD / Buy NTD
 
Jan. 2018 – Feb. 2018
 
USD213,100 / NTD6,377,672
Sell USD / Buy JPY
 
Jan. 2018 – Jun. 2018
 
USD304,926 / JPY34,092,055
Sell USD / Buy CNY
 
Jan. 2018 – Apr. 2018
 
USD137,000 / CNY903,800
Sell EUR / Buy JPY
 
Jan. 2018 – Feb. 2018
 
EUR65,000 / JPY8,691,815
Sell EUR / Buy CZK
 
Jan. 2018 – Mar. 2018
 
EUR3,280 / CZK83,502
Sell USD / Buy MYR
 
Jan. 2018 – Mar. 2018
 
USD931 / MYR3,811
Sell JPY / Buy NTD
 
Jan. 2018
 
JPY10,000,000 / NTD2,654,220
Sell CNY / Buy JPY
 
Jan. 2018 –  Apr. 2018
 
CNY86,623 / JPY1,443,259
Sell USD / Buy SGD
 
Jan. 2018
 
USD5,480 / SGD7,366
 
 
 
 
 
 
December 31, 2016
Contract item
 
Maturity date
 
Contract amount
 
 
 
 
(in thousands)
Sell USD / Buy NTD
 
Jan. 2017 – Feb. 2017
 
USD711,000 / NTD22,687,304
Sell USD / Buy JPY
 
Jan. 2017 – Mar. 2017
 
USD126,730 / JPY13,860,716
Sell NTD / Buy JPY
 
Mar. 2017
 
NTD1,474,085 / JPY5,400,000
Sell USD / Buy CNY
 
Jan. 2017 – Jun. 2017
 
USD96,000 / CNY662,180
Sell EUR / Buy JPY
 
Mar. 2017
 
EUR90,000 / JPY10,693,738
Sell EUR / Buy CZK
 
Jan. 2017 –  Feb. 2017
 
EUR3,190 / CZK85,791
Sell EUR / Buy USD
 
Mar. 2017
 
EUR41,000 / USD44,148
Sell USD / Buy MYR
 
Jan. 2017 – Mar. 2017
 
USD741 / MYR3,296
Sell JPY / Buy NTD
 
Mar. 2017
 
JPY50,000 / NTD13,725
Sell CNY / Buy USD
 
Jan. 2017 – Apr. 2017
 
CNY359,763 / USD52,189
Sell EUR / Buy NTD
 
Jan. 2017
 
EUR5,000 / NTD171,967
Sell CNY / Buy JPY
 
Jan. 2017 –  Jul. 2017
 
CNY588,583 / JPY9,068,273
Sell USD / Buy SGD
 
Jan. 2017
 
USD170,157 / SGD245,680
 
Net gains (losses) of foreign currency forward contracts were as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(in thousands)
 
Unrealized gains (losses)
 
$
795,098
 
 
(491,860)
 
 
(240,002)
 
Realized gains
 
 
850,936
 
 
80,423
 
 
1,179,119
 
 
 
$
1,646,034
 
 
(411,437)
 
 
939,117
 
 
AUO entered into interest rate swap contracts with several banks to manage interest rate risk exposure arising from financing activities. As at December 31, 2017, there was no outstanding interest rate swap contract. As at December 31, 2016, AUO’s total notional amount of outstanding interest rate swap contracts amounted to $1,760,000 thousand which were related to effective hedges. For the years ended December 31, 2017, 2016 and 2015, no unrealized gains or losses resulting from change in fair value of interest rates swap contracts were recognized in profit and loss.
 
(2)
Hedge accounting
 
The Company entered into Plain Vanilla type interest rate swap contracts as the primary hedging instrument. The Company paid interest based on fixed rate and received market floating-rate from the counterparty. The aforementioned hedging contracts were intended to protect the Company from the risk of future cash flow fluctuation of debt bearing floating interest rate. These contracts were designated as cash flow hedges and met the criteria for hedge accounting.
  
Details of hedged items designated as cash flow hedges and their respective hedging derivative financial instruments were as follows:
 
December 31, 2016
 
Hedged item
 
Hedging
instrument
 
Fair value
of hedging
instrument
 
Expected
period of
cash flows
 
Expected
period of
recognition in
comprehensive
income
 
 
 
 
 
(in thousands)
 
 
 
 
 
Long-term borrowings with floating interest rate
 
Interest rate swap contracts
 
$
(3,540)
 
Jan. 2017 – Aug. 2017
 
Jan. 2017 – Aug. 2017
 

Fact Table
Network
114 - Disclosure - Available-for-sale Financial Assets–noncurrent
(http://auo.com/role/AvailableforsaleFinancialAssetsnoncurrent)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfAvailableforsaleAssetsExplanatory (label)
8.
Available-for-sale Financial Assets–noncurrent
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
 
 
 
 
 
 
 
 
Equity securities
 
$
4,348,134
 
 
3,030,278
 
 
The Company sold part of its investments in available-for-sale securities during 2016 and 2015. The selling prices amounted to $9,917 thousand and $99,517 thousand, respectively, and the realized gains on disposal amounted to $2,877 thousand and $99,517 thousand, respectively.
 
The Company determined part of its available-for-sale financial assets was impaired, and there is a remote chance of future recovery. As a result, the Company recognized an impairment loss of $30,000 thousand and $686 thousand for the years ended December 31, 2017 and 2016, respectively.
 
Some of the available-for-sale securities held by the Company were publicly listed equity shares, if the share price of these securities appreciates or depreciates by 10% at the reporting date, other comprehensive income would increase or decrease $417,032 thousand, $283,670 thousand and $207,720 thousand for the years ended December 31, 2017, 2016 and 2015, respectively.

Fact Table
Network
115 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedParties)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory (label)
9.
Accounts Receivable, net (Including Related and Unrelated Parties)
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
 
 
 
 
 
 
 
 
Accounts receivable
 
$
42,021,402
 
 
49,201,632
 
Less: allowance for doubtful accounts
 
 
(93,053)
 
 
(104,617)
 
allowance for sales returns and discounts
 
 
(1,337,076)
 
 
(853,614)
 
 
 
$
40,591,273
 
 
48,243,401
 
Accounts receivable, net
 
$
38,738,211
 
 
45,710,177
 
Accounts receivable from related parties, net
 
$
1,853,062
 
 
2,533,224
 
 
Aging analysis of accounts receivable, which were past due but not impaired, was as follows:
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Past due less than 60 days
 
$
560,016
 
 
531,327
 
Past due 61~180 days
 
 
12,790
 
 
9,505
 
Past due over 180 days
 
 
-
 
 
1,020
 
 
 
$
572,806
 
 
541,852
 
 
The movement in the allowance for doubtful accounts was as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
Individually assessed for
impairment
 
Collectively assessed for
impairment
 
Individually assessed for
impairment
 
Collectively assessed for
impairment
 
Individually assessed for
impairment
 
Collectively assessed for
impairment
 
 
 
(in thousands)
 
Balance at beginning of the year
 
$
41,812
 
 
62,805
 
 
11,714
 
 
58,183
 
 
10,334
 
 
72,906
 
Provisions (reversals) charged to (against) expense
 
 
(28,236)
 
 
18,396
 
 
31,360
 
 
12,938
 
 
3,196
 
 
(14,864)
 
Write-offs
 
 
(6)
 
 
-
 
 
-
 
 
(7,385)
 
 
(1,814)
 
 
(383)
 
Effect of changes in foreign currency exchange rates
 
 
(805)
 
 
(913)
 
 
(1,262)
 
 
(931)
 
 
(2)
 
 
524
 
Balance at end of the year
 
$
12,765
 
 
80,288
 
 
41,812
 
 
62,805
 
 
11,714
 
 
58,183
 
 
The payment terms granted to customers are generally 30 to 60 days from the end of the month during which the invoice is issued.
 
The Company evaluates possible uncollected amounts and uses allowance for doubtful accounts to record its doubtful receivable expenses. When evaluating the allowances, the Company considers the historical experience, the customer credits and the account aging analysis. While it is determined a receivable is uncollectible, receivable balances is offset against the allowance for doubtful accounts.
 
Information about the Company’s exposure to credit risk is included in note 36.
 
As of December 31, 2017 and 2016, the Company entered into financing facilities with banks to factor certain of its accounts receivable without recourse, details of which were as follows:
 
December 31, 2017
 
Underwriting bank
 
Factoring
limit
 
Amount
advanced
 
Amount
sold and derecognized
 
Principle
terms
 
 
 
 
 
 
(in thousands)
 
 
 
 
 
 
Chinatrust Commercial Bank
 
USD
200,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Taishin Bank
 
USD
80,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Bank of Taiwan
 
USD
250,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Taipei Fubon Bank
 
USD
120,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
E. Sun Bank
 
USD
50,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
DBS Bank
 
USD
154,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Taishin Bank
 
USD
35,000
 
 
-
 
USD
6,382
 
See notes(a)~(d) and (f)
 
 
December 31, 2016
 
Underwriting bank
 
Factoring
limit
 
Amount
advanced
 
Amount
sold and derecognized
 
Principle
terms
 
 
 
 
 
 
(in thousands)
 
 
 
 
 
 
Chinatrust Commercial Bank
 
USD
230,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Taishin Bank
 
USD
80,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Bank of Taiwan
 
USD
250,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Taipei Fubon Bank
 
USD
120,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
E. Sun Bank
 
USD
100,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
DBS Bank
 
USD
184,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Taishin Bank
 
USD
35,000
 
 
-
 
USD
8,780
 
See notes(a)~(d) and (f)
 
 
 
Note (a):
Under these facilities, the Company transferred accounts receivable to the respective underwriting banks, which are without recourse.
 
 
 
 
Note (b):
The Company informed its customers pursuant to the respective facilities to make payment directly to the respective underwriting banks.
 
 
 
 
Note (c):
As of December 31, 2017 and 2016, total outstanding receivables after the above assignment transactions, net of fees charged by underwriting banks, of $190,451 thousand and $283,694 thousand, respectively, were classified under other current financial assets.
 
 
 
 
Note (d):
To the extent of the amount transferred to the underwriting banks, risks of non-collection or potential payment default by customers in the event of insolvency are borne by respective banks. The Company is not responsible for the collection of receivables subject to these facilities, or for any legal proceedings and costs thereof in collecting these receivables.
 
 
Note (e):
To the extent of the amount transferred to the underwriting banks, risks of non-collection or potential payment default by customers in the event of insolvency are borne by respective banks. The Company is not responsible for the collection of receivables subject to these facilities, or for any legal proceedings and costs thereof in collecting these receivables. In case any commercial dispute between the Company and customers or other reasons results in the Company’s failure to perform the obligation under these facilities, the banks have requested the Company to issue promissory notes in the amounts equal to 10 percent of respective facilities or to transfer receivables in the amounts equal to 10 percent of respective facilities.  Other than such arrangements, no collaterals were provided by the Company.
 
 
 
 
Note (f):
The Company bears all risks deriving from the customers except credit risk.

Fact Table
Network
116 - Disclosure - Inventories
(http://auo.com/role/Inventories)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfInventoriesExplanatory (label)
10.
Inventories
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Finished goods
 
$
10,095,820
 
 
9,532,199
 
Work-in-progress
 
 
9,405,677
 
 
11,100,347
 
Raw materials
 
 
5,352,826
 
 
7,046,789
 
 
 
$
24,854,323
 
 
27,679,335
 
 
For the years ended December 31, 2017, 2016 and 2015, the amounts of inventories that were charged to cost of sales were $279,914,056 thousand, $296,661,898 thousand and $319,606,448 thousand, respectively, and the charges for inventories written down to net realizable value amounted to $3,756,726 thousand, $3,673,213 thousand and $5,661,266 thousand for the years ended December 31, 2017, 2016 and 2015, respectively, which were also included in the cost of sales.
 
As at December 31, 2017 and 2016, none of the Company’s inventories was pledged as collateral.

Fact Table
Network
117 - Disclosure - Noncurrent Assets Held for Sale
(http://auo.com/role/NoncurrentAssetsHeldForSale)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisclosureOfNoncurrentAssetsHeldForSaleTextBlock (label)
11.
Noncurrent Assets Held for Sale
 
Pursuant to the resolution of AETJ’s board of directors’ meeting held on December 9, 2015, AETJ decided to sell its use right of land and plants to Tianjin Binhai Hi-tech Development Area Asset Management Ltd. This transaction was completed in June 2016, and the selling price and gain on disposal (net of costs of disposal) were $683,078 thousand (RMB141,117 thousand) and $14,717 thousand, respectively.
 
In December 2016, M.Setek decided to dispose part of its land and buildings to TAKEEI Corporation and other companies, and has reclassified certain of these assets for reclassification as noncurrent assets held for sale in the consolidated statement of financial position as of December 31, 2016. Disposal transactions of aforementioned land and buildings, together with certain assets presented as property, plant and equipment as of December 31, 2016, were completed between March 2017 to August 2017. The total selling price (net of costs of disposal) and gain on disposal were $837,103 thousand and $215,478 thousand, respectively.
 
In October 2017, in relation to compulsory imposition under regulatory plan and urban construction plan, FTKS has entered into a compensation agreement with Kunshan Economic and Technology Development District to dispose its land use right, plant buildings and related appendages with consideration amounting to RMB215,527 thousand. The relevant procedures are expected to be completed within twelve months.
 
In December 2017, in relation to asset revitalization plan and to increase working capital, BVHF has entered into a real estate transfer agreement with Hefei Heng Chuang Intelligent Technology Co., Ltd. to dispose its land use right, plant buildings and related appendages with consideration amounting to RMB512,770 thousand. The relevant procedures are expected to be completed within twelve months.
 
The abovementioned land use right, plant buildings and its related appendages have been reclassified as noncurrent assets held for sale and presented separately in the consolidated statement of financial position. No impairment loss was recognized during the reclassification as the expected fair value less cost to sell is higher than the carrying value of the relevant assets.   
 
Noncurrent assets held for sale as of December 31, 2017 and 2016 consisted of the following:
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Property, plant and equipment
 
$
1,963,370
 
 
228,015
 
Land use right
 
 
444,610
 
 
-
 
 
 
$
2,407,980
 
 
228,015
 

Fact Table
Network
118 - Disclosure - Investments in equity-accounted Investees
(http://auo.com/role/InvestmentsInEquityaccountedInvestees)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory (label)
12.
Investments in equity-accounted Investees
 
Investments in equity-accounted investees at the reporting dates consisted of the following:
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Associates
 
$
5,286,487
 
 
4,853,325
 
Joint ventures
 
 
310,800
 
 
325,012
 
 
 
$
5,597,287
 
 
5,178,337
 
 
(a)
Associates
 
 
 
 
 
Principal
 
December 31, 2017
 
December 31, 2016
 
Name of
associate
 
Principal
activities
 
place of
business
 
Ownership
interest
 
Amount
 
Ownership
interest
 
Amount
 
 
 
 
 
 
 
 
%
 
(in thousands)
 
 
%
 
(in thousands)
 
Lextar Electronics Corp. (“Lextar”)
 
Manufacturing and sales of Light Emitting Diode
 
Taiwan ROC
 
 
27
 
$
3,104,955
 
 
25
 
$
3,082,856
 
Raydium Semiconductor Corporation (“Raydium”)
 
IC design
 
Taiwan ROC
 
 
18
 
 
678,908
 
 
18
 
 
712,829
 
Star River Energy Corp. (“SREC”)
 
Holding company
 
Taiwan ROC
 
 
34
 
 
533,840
 
 
34
 
 
531,805
 
Daxin Materials Corp. (“Daxin”)
 
Research, manufacturing, and sales of display related chemicals
 
Taiwan ROC
 
 
25
 
 
573,571
 
 
25
 
 
525,835
 
SSEC
 
Holding company
 
Taiwan ROC
 
 
37
 
 
369,153
 
 
-
 
 
-
 
Others
 
 
 
 
 
 
 
 
 
26,060
 
 
 
 
 
-
 
 
 
 
 
 
 
 
 
 
$
5,286,487
 
 
 
 
$
4,853,325
 
 
Prior to May 2015, the Company was able to exercise significant influence over the operating policies of Qisda, and accounted for its investments in Qisda under the equity method of accounting. Since the Company and Qisda had mutual holdings, the share of profit or loss was recognized using the treasury stock method.
 
In May 2015, the Company reassessed its relationships with Qisda and determined that it is no longer able to exercise significant influence over Qisda. Therefore, the Company reclassified its investment in Qisda as noncurrent available-for-sale financial asset measured at fair value. The difference between the fair value of the investment and carrying amount accounted for under the equity method as at the date of the reclassification was recognized in profit or loss. Further, previously recognized other comprehensive income or loss and other equity reserves related to the Company’s investment in Qisda were also reclassified to profit or loss. In total, a loss of $110,136 thousand was recognized under other gains and losses in the consolidated statement of comprehensive income for the year ended December 31, 2015.
 
On October 1, 2016, Raydium, the associate of the Company, issued its new shares in exchange for all outstanding shares of another associate of the Company, Dazzo Technology Corporation (“Dazzo”). Subsequent to the share exchange, the Company’s ownership in Raydium increased from approximately 16% to 18%. The transaction did not result in any material impact on the Company’s consolidated financial statements.
 
There is no individually significant associate for the Company. The following table summarized the amount recognized by the Company at its share of those associates.
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
The Company’s share of profits of associates
 
$
251,699
 
 
18,644
 
 
248,165
 
The Company’s share of other comprehensive loss of associates
 
 
(62,084)
 
 
(29,460)
 
 
(71,585)
 
The Company’s share of total comprehensive income (loss) of associates
 
$
189,615
 
 
(10,816)
 
 
176,580
 
 
(b)
Joint ventures
 
AUO, through its subsidiary AUSG, entered into a joint venture agreement with SunPower Technology, Ltd. (“SPTL”) which is 100% owned by SunPower Corporation. In accordance with the joint venture agreement, the Company acquired its 50% ownership interests of AUO SunPower Sdn. Bhd. (“AUSP”) on July 5, 2010 (co-investment date) by contributing technology with an estimated fair value of US$30,000 thousand (equivalents to $966,600 thousand) and agreed to contribute additional cash over time. The total cash payments made by the Company amounted to US$180,069 thousand. In September 2016, AUSG disposed of its entire 50% interest in AUSP to SPTL for total selling price of $5,408,546 thousand (US$170,100 thousand) in cash and recognized a loss on disposal, net of tax, amounting to $382,608 thousand. The selling price will be settled with repayment of installments over the years. As of December 31, 2017 and 2016, the outstanding selling price amounting to US$61,100 thousand, which will be received in cash at US$1,100 thousand, US$30,000 thousand and US$30,000 thousand in year 2018, 2019 and 2020, respectively, are classified under other current assets and other noncurrent assets, respectively, by its liquidity.
 
Additionally, in September 2016, AUO entered into a long-term Module Supply Agreement with SunPower Systems Sarl (“SPSW”), a subsidiary of SunPower Corporation, under which, SPSW agreed to supply AUO with commercial terms of SunPower’s E-Series solar modules. AUO has prepaid in full to SPSW in September 2016 and classified the prepayment under other current assets and other noncurrent assets, respectively, by its liquidity. In August 2017, AUO and SPSW have agreed to make amendment for the long-term Supply Agreement whereby SPSW will replace the supply of E-Series solar modules with solar cells without additional consideration.
 
There is no individually significant joint venture for the Company. The following table summarized the amount recognized by the Company at its share of those joint ventures.
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
The Company’s share of profits (losses) of joint ventures
 
$
(12,693)
 
 
82,134
 
 
201,287
 
The Company’s share of other comprehensive income (loss) of joint ventures
 
 
-
 
 
(314,710)
 
 
394,132
 
The Company’s share of total comprehensive income (loss) of joint ventures
 
$
(12,693)
 
 
(232,576)
 
 
595,419
 
 
As at December 31, 2017 and 2016, none of the Company’s investments in equity-accounted investees was pledged as collateral.

Fact Table
Network
119 - Disclosure - Disposal of Part of Ownership Interest in Subsidiary without Losing Control
(http://auo.com/role/DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControl)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of effects of changes in parent's ownership interest in subsidiary that do not result in loss of control on equity attributable to owners of parent [text block]
13.
Disposal of Part of Ownership Interest in Subsidiary without Losing Control
 
In November 2017, the Company disposed its ownership interest in DPTW totaling of 9.99% with consideration (net of costs of disposal) amounting to $1,776,984 thousand in cash. The effect of changes in ownership interest of the subsidiary which is attributable to owners of the parent is summarized as follows:
 
 
 
For the year ended December 31, 2017
 
 
 
(in thousands)
 
Consideration received
 
$
1,776,984
 
Carrying value of the equity interest disposed of
 
 
(1,190,529)
 
Capital surplus – changes in ownership interest of subsidiary
 
 
(12,099)
 
Other equity – effect from foreign currency translation differences arising from foreign operations
 
 
(56,160)
 
Capital surplus – differences between consideration and carrying amount arising from disposal of interest in subsidiary
 
$
518,196
 

Fact Table
Network
120 - Disclosure - Disposal of Subsidiaries
(http://auo.com/role/DisposalOfSubsidiaries)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisclosureOfLossControlOfSubsidiaryTextBlock (label)
14.
Disposal of Subsidiaries
 
The Company disposed all its shareholdings in FGPC and TGPC to SSEC, an associate of the Company, in December 2017 with consideration amounting to $480,000 thousand in cash. The gain on disposal amounting to $76,331 thousand was recognized under other gains and losses in the consolidated statement of comprehensive income.
 
The carrying amounts of the assets and liabilities of the subsidiaries disposed of by the Company were as follows:
 
 
 
Amounts
 
 
 
(In thousands)
 
Cash and cash equivalents
 
$
203,607
 
Accounts receivable and other receivables
 
 
4,513
 
Other current assets
 
 
38,649
 
Property, plant and equipment
 
 
260,828
 
Other assets
 
 
54,397
 
Payable for equipment
 
 
(71,076)
 
Accrued expense and other current liabilities
 
 
(3,062)
 
Long-term borrowings
 
 
(84,187)
 
Net assets disposed of
 
$
403,669
 
 

Fact Table
Network
121 - Disclosure - Property, Plant and Equipment
(http://auo.com/role/PropertyPlantAndEquipment)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of property, plant and equipment [text block]
15.
Property, Plant and Equipment
 
 
 
For the year ended December 31, 2017
 
 
 
Balance, Beginning
of Year
 
Additions
 
Disposal or
write off
 
Reclassification and effect of
change in exchange
rate
 
Balance,
End of Year
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(in thousands)
 
Cost:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Land
 
$
8,873,981
 
 
865,956
 
 
(675,811)
 
 
(55,467)
 
 
9,008,659
 
Buildings
 
 
130,595,844
 
 
433,269
 
 
(3,786,388)
 
 
(3,231,856)
 
 
124,010,869
 
Machinery and equipment
 
 
798,046,434
 
 
1,827,188
 
 
(14,844,436)
 
 
15,135,124
 
 
800,164,310
 
Other equipment
 
 
32,419,736
 
 
4,140,108
 
 
(7,900,925)
 
 
700,229
 
 
29,359,148
 
 
 
 
969,935,995
 
 
7,266,521
 
 
(27,207,560)
 
 
12,548,030
 
 
962,542,986
 
Accumulated depreciation and impairment loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Land
 
 
173,397
 
 
-
 
 
(54,186)
 
 
(119,211)
 
 
-
 
Buildings
 
 
36,028,301
 
 
3,216,571
 
 
(3,785,921)
 
 
(1,633,576)
 
 
33,825,375
 
Machinery and equipment
 
 
698,110,663
 
 
27,946,301
 
 
(14,694,674)
 
 
(4,027,879)
 
 
707,334,411
 
Other equipment
 
 
26,154,173
 
 
5,655,026
 
 
(7,883,150)
 
 
(208,469)
 
 
23,717,580
 
 
 
 
760,466,534
 
 
36,817,898
 
 
(26,417,931)
 
 
(5,989,135)
 
 
764,877,366
 
Prepayments for purchase of land and equipment, and construction in progress
 
 
13,272,371
 
 
36,289,529
 
 
(29,206)
 
 
(22,265,225)
 
 
27,267,469
 
Net carrying amounts
 
$
222,741,832
 
 
 
 
 
 
 
 
 
 
 
224,933,089
 
  
 
 
For the year ended December 31, 2016
 
 
 
Balance, Beginning
of Year
 
Additions
 
Disposal or
write off
 
Reclassification and effect of
change in exchange rate
 
Balance,
End of Year
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(in thousands)
 
Cost:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Land
 
$
9,112,286
 
 
-
 
 
(14,455)
 
 
(223,850)
 
 
8,873,981
 
Buildings
 
 
122,156,354
 
 
1,086
 
 
(580,089)
 
 
9,018,493
 
 
130,595,844
 
Machinery and equipment
 
 
779,019,328
 
 
2,424,626
 
 
(24,033,087)
 
 
40,635,567
 
 
798,046,434
 
Other equipment
 
 
34,248,005
 
 
4,532,365
 
 
(6,462,949)
 
 
102,315
 
 
32,419,736
 
 
 
 
944,535,973
 
 
6,958,077
 
 
(31,090,580)
 
 
49,532,525
 
 
969,935,995
 
Accumulated depreciation and impairment loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Land
 
 
184,889
 
 
-
 
 
(14,487)
 
 
2,995
 
 
173,397
 
Buildings
 
 
32,791,946
 
 
3,107,870
 
 
(132,589)
 
 
261,074
 
 
36,028,301
 
Machinery and equipment
 
 
694,955,031
 
 
30,329,428
 
 
(23,846,019)
 
 
(3,327,777)
 
 
698,110,663
 
Other equipment
 
 
30,215,702
 
 
5,130,524
 
 
(6,430,868)
 
 
(2,761,185)
 
 
26,154,173
 
 
 
 
758,147,568
 
 
38,567,822
 
 
(30,423,963)
 
 
(5,824,893)
 
 
760,466,534
 
Prepayments for purchase of land and equipment, and construction in progress
 
 
22,397,204
 
 
48,931,054
 
 
(29,246)
 
 
(58,026,641)
 
 
13,272,371
 
Net carrying amounts
 
$
208,785,609
 
 
 
 
 
 
 
 
 
 
 
222,741,832
 
 
As of December 31, 2017 and 2016, a non-irrigated farmland located in LongTan plant amounted to $23,671 thousand was registered in the name of a farmer due to regulations. An agreement of pledge had been signed between the Company and the farmer clarifying the rights and obligations of each party.
 
ACTW sold its lands located in Chang Hua Coastal Industrial Park, Taiwan, during 2015. The selling price and gain on disposal amounted to $790,342 thousand and $276,769 thousand, respectively.
 
According to the resolution of board of directors’ meeting held on August 10, 2015, AUO decided to sell part of its plants and has entered into an agreement with Wistron NeWeb Corporation. This transaction was completed in December 2015, and the selling price and gain on disposal (net of costs of disposal) were $808,504 thousand and $558,206 thousand, respectively.
 
In 2017 and 2015, the Company wrote down certain machineries and equipment with low utilization resulting from the decline in the application for certain products associated with its display segment and recognized impairment losses of $895,954 thousand and $172,530 thousand, respectively. 
 
In 2017, 2016 and 2015, the Company wrote down certain long-term assets with lower capacity utilization associated with its solar segment and recognized impairment losses of $120,714 thousand, $34,047 thousand and $101,764 thousand, respectively.
 
Polysilicon in the solar industry has experienced significant downturns including sharp decline in pricing because of oversupply capacity worldwide; therefore, the management of M.Setek, the Company’s subsidiary in Japan, decided to cease the production of polysilicon which was approved by the board of directors of M.Setek on January 8, 2016. The Company performed its impairment assessment over the polysilicon CGU’s long-term assets in the fourth quarter of 2015. The recoverable amount was determined based on the relevant assets’ estimated fair value less costs of disposal. The fair value of long-term assets was determined by management with reference to the sales prices of recent transactions of similar asset in the same geographical area.
 
The fair value measurement was categorised as a Level 3 fair value based on inputs in the valuation techniques used.
 
The following table shows the valuation technique used in the determination of fair value of the polysilicon CGU’s long-term assets within Level 3, as well as the significant inputs used in the valuation model.
 
Description of
Valuation Technique
 
Significant inputs
 
Inter-relationship between
significant inputs and fair
value measurement
Sales comparison approach:
Sales price of comparable property in close proximity are adjusted for differences in key attributes such as property size. The expected sales price is adjusted with sales discount based on land size. The significant inputs into this valuation approach are price per square meter of comparable properties and sales discount.
l    Price per square meter (JPY 8,000).
l    Sales discount (15%).
 
The estimated fair value would increase (decrease) if:
l    the price per square meter is higher (lower); or
l    the sales discount rates are lower (higher).
 
Based on management assessment, the carrying amount of the polysilicon CGU was determined to be higher than its estimated recoverable amount; consequently, an impairment loss of $6,755,157 thousand was recognized during the year ended December 31, 2015.
 
Impairment losses as mentioned above are recognized as other gains and losses in the consolidated statements of comprehensive income.
 
The capitalized borrowing costs were $624,235 thousand, $542,994 thousand and $186,025 thousand for the years ended December 31, 2017, 2016 and 2015, respectively. The interest rates applied for the capitalization, ranged from 1.09% to 5.24%, 1.09% to 4.66% and 1.29% to 6.73% for the years ended December 31, 2017, 2016 and 2015, respectively.
 
Certain property, plant and equipment were pledged as collateral, see note 39. 

Fact Table
Network
122 - Disclosure - Investment Property
(http://auo.com/role/InvestmentProperty)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of investment property [text block]
16.
Investment Property
 
 
 
For the year ended December 31, 2017
 
 
 
Balance,
Beginning
of Year
 
Additions
 
Disposal
 
Reclassification and effect of change
in exchange rate
 
Balance,
End of
Year
 
 
 
(in thousands)
 
Land
 
$
465,868
 
 
-
 
 
-
 
 
251,955
 
 
717,823
 
Fair Value
 
$
1,402,040
 
 
 
 
 
 
 
 
 
 
 
2,213,184
 
 
 
 
For the year ended December 31, 2016
 
 
 
Balance, Beginning
of Year
 
Additions
 
Disposal
 
Reclassification and effect of change
in exchange rate
 
Balance,
End of
Year
 
 
 
(in thousands)
 
Land
 
$
465,868
 
 
-
 
 
-
 
 
-
 
 
465,868
 
Fair Value
 
$
1,145,098
 
 
 
 
 
 
 
 
 
 
 
1,402,040
 
 
In relation to the cessation of polysilicon production, M.Setek leased part of its lands to third party in 2017, and has reclassified those lands amounting to $251,955 thousand from property, plant and equipment to investment property.
 
The fair value of investment property is based on a valuation performed by a qualified independent appraiser who holds a recognized and relevant professional qualification and has recent valuation experience in the location and category of the investment property being valued. The valuation is performed using income approach, market valuation approach and land development analysis approach with reference to available market information.
 
The fair value measurement was categorized as a level 3 fair value based on the inputs in the valuation techniques used. Income approach determines the fair value of the investment property based on the projected cash flows from the Company’s estimated future rentals collected and discounted using the capitalization rate of the property. Market valuation approach is through comparison, analysis, adjustment and other means of value for comparable properties to estimate the value of the investment property. Land development analysis approach determine the fair value of investment property based on the value prior to development or construction, after deducting the direct cost, indirect cost, capital interest and profit during the development period, and also consider total sales price of properties after completion of development or construction. It also incorporates the possibility of changes in utility of land through development or improvement in accordance with legal use and density of the land.
 
The significant inputs in valuation techniques used are set out below:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
 
 
 
 
 
 
 
 
Overall capital interest rate
 
 
1.86
%
 
2.06
%
Rate of return
 
 
10.00
%
 
10.00
%
Capitalization rate
 
 
12.00
%
 
-
 
 
Certain investment property were pledged as collateral, see note 39.

Fact Table
Network
123 - Disclosure - Intangible Assets
(http://auo.com/role/IntangibleAssets)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of intangible assets [text block]
17.
Intangible Assets
 
 
 
For the year ended December 31, 2017
 
 
 
Balance,
Beginning
of Year
 
Additions
 
Effect of change in exchange rate
 
Balance,
End of Year
 
 
 
(in thousands)
 
Cost:
 
 
 
 
 
 
 
 
 
 
 
 
 
Patent and technology fee
 
$
12,078,767
 
 
196,781
 
 
-
 
 
12,275,548
 
Accumulated amortization:
 
 
 
 
 
 
 
 
 
 
 
 
 
Patent and technology fee
 
 
9,756,528
 
 
628,606
 
 
117
 
 
10,385,251
 
Net carrying amounts
 
$
2,322,239
 
 
 
 
 
 
 
 
1,890,297
 
 
 
 
For the year ended December 31, 2016
 
 
 
Balance,
Beginning
of Year
 
Additions
 
Reclassification and effect of change
in exchange rate
 
Balance,
End of Year
 
 
 
(in thousands)
 
Cost:
 
 
 
 
 
 
 
 
 
 
 
 
 
Patent and technology fee
 
$
11,901,662
 
 
187,020
 
 
(9,915)
 
 
12,078,767
 
Accumulated amortization:
 
 
 
 
 
 
 
 
 
 
 
 
 
Patent and technology fee
 
 
8,606,978
 
 
1,159,465
 
 
(9,915)
 
 
9,756,528
 
Net carrying amounts
 
$
3,294,684
 
 
 
 
 
 
 
 
2,322,239
 

Fact Table
Network
124 - Disclosure - Other Current Assets and Other Noncurrent Assets
(http://auo.com/role/OtherCurrentAssetsAndOtherNoncurrentAssets)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of other assets [text block]
18.
Other Current Assets and Other Noncurrent Assets
 
 
 
December 31,
 
 
 
2017
2016
 
 
 
(in thousands)
 
Prepayment for equipment
 
$
457,201
 
 
463,910
 
Refundable and overpaid tax
 
 
3,291,235
 
 
3,015,534
 
Long-term prepaid rents
 
 
1,412,026
 
 
1,940,489
 
Prepayments for purchases
 
 
2,053,554
 
 
3,360,869
 
Long-term receivables
 
 
1,790,400
 
 
1,974,271
 
Refundable deposits
 
 
515,148
 
 
133,221
 
Others
 
 
2,551,070
 
 
2,481,104
 
 
 
 
12,070,634
 
 
13,369,398
 
Less: current
 
 
(6,631,130)
 
 
(6,330,283)
 
Noncurrent
 
$
5,439,504
 
 
7,039,115
 

Fact Table
Network
125 - Disclosure - Short-term Borrowings
(http://auo.com/role/ShorttermBorrowings)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of other current liabilities [text block]
19.
Short-term Borrowings
 
 
 
December 31,
 
 
 
2017
 
 
2016
 
 
 
(in thousands)
 
Unsecured borrowings
 
$
3,424,376
 
 
 
526,723
 
Unused credit facility
 
$
35,866,924
 
 
 
33,877,442
 
Interest rate
 
 
3.62%~4.35%
 
 
 
4.35%~4.39%
 

Fact Table
Network
126 - Disclosure - Convertible Bonds Payable
(http://auo.com/role/ConvertibleBondsPayable)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of debt instruments [text block]
20.
Convertible Bonds Payable
 
AUO issued unsecured overseas convertible corporate bonds (hereinafter referred to as “ECB”) on October 13, 2010 with par value of US$800,000 thousand and coupon rate at 0%. The duration period is five years commencing from the issuance date.
 
AUO purchased the outstanding ECB starting from 2011. In 2015, AUO purchased the outstanding ECB with par value of US$399,700 thousand, at costs of US$461,015 thousand. The remaining outstanding balance of ECB with par value of US$14,500 thousand was fully redeemed by AUO at the redemption price equal to 115.34% of the remaining par value of ECB on the maturity date of October 13, 2015, with no exercise of conversion rights.

Fact Table
Network
127 - Disclosure - Long-term Borrowings
(http://auo.com/role/LongtermBorrowings)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of other non-current liabilities [text block]
21.
Long-term Borrowings
 
Bank or agent bank
 
Durations
 
December 31,
2017
 
 
December 31,
2016
 
 
 
 
 
(in thousands)
 
Syndicated loans:
 
 
 
 
 
 
 
 
 
 
Bank of Taiwan and others
 
From Feb. 2015 to Feb. 2020
 
$
22,704,000
 
 
 
25,800,000
 
Bank of Taiwan and others
 
From Apr. 2016 to Apr. 2021
 
 
37,500,000
 
 
 
25,000,000
 
Bank of Taiwan and others
 
From May 2017 to May 2022
 
 
10,000,000
 
 
 
-
 
Bank of Taiwan and others
 
From Jan. 2014 to Dec. 2017
 
 
-
 
 
 
23,672,000
 
Bank of Taiwan and others
 
From Feb. 2013 to Mar. 2017
 
 
-
 
 
 
7,596,757
 
First Commercial Bank and others
 
From Feb. 2016 to Feb. 2019
 
 
2,395,868
 
 
 
3,000,000
 
Standard Chartered Bank and others
 
From Sep. 2014 to Jun. 2017
 
 
-
 
 
 
2,358,776
 
Bank of China and others
 
From Nov. 2015 to Nov. 2023
 
 
27,800,680
 
 
 
21,216,394
 
Unsecured loans
 
From Apr. 2012 to Apr. 2022
 
 
10,203,390
 
 
 
16,005,955
 
Mortgage loans
 
From Apr. 2016 to Apr. 2032
 
 
441,035
 
 
 
95,727
 
 
 
 
 
 
111,044,973
 
 
 
124,745,609
 
Less: transaction costs
 
 
 
 
(436,963)
 
 
 
(482,989)
 
 
 
 
 
 
110,608,010
 
 
 
124,262,620
 
Less: current portion
 
 
 
 
(8,155,234)
 
 
 
(18,074,627)
 
 
 
 
 
$
102,452,776
 
 
 
106,187,993
 
Unused credit facility
 
 
 
$
37,220,839
 
 
 
43,228,323
 
Interest rate range
 
 
 
 
1.25%~ 5.16%
 
 
 
1.09%~ 4.90%
 
 
The Company entered into the aforementioned long-term loan arrangements with banks and financial institutions to finance capital expenditures for purchase of machinery and equipment, and to fulfill working capital, as well as to repay the matured debts. A commitment fee is negotiated with the leading banks of syndicated loans, and is calculated based on the committed-to-withdraw but unused balance, if any. No commitment fees were paid for the year ended December 31, 2017.
 
These credit facilities contain covenants that require the Company to maintain certain financial ratios, calculating based on the Company’s annual consolidated financial statements prepared in accordance with Taiwan Financial Reporting Standards, such as current ratio (defined as current assets divided by current liabilities excluding (a) current portion of long-term debt or (b) current portion of long-term debt and equipment and construction payable), leverage ratio (calculated as the sum of short-term borrowings plus current portion of long-term debt and long-term debt to consolidated tangible net worth), interest coverage ratio, tangible net worth and others as specified in the loan agreements.
 
As of December 31, 2017 and 2016, the Company complied with all financial covenants under each of the loan agreements.
 
The reconciliation of liabilities to cash flows arising from financing activities was as follows:
 
 
 
 
 
 
 
 
 
Non-cash changes
 
 
 
 
 
 
January 1,
2017
 
Cash flows
 
Changes in
exchange
rate
 
Effect of change in consolidated
entities
 
Amortization
on transaction
costs
 
December 31,
2017
 
 
 
(in thousands)
 
Short-term borrowings
 
$
526,723
 
 
2,903,927
 
 
(6,274)
 
 
-
 
 
-
 
 
3,424,376
 
Long-term borrowings
 
 
124,262,620
 
 
(12,571,198)
 
 
(1,142,980)
 
 
(84,187)
 
 
143,755
 
 
110,608,010
 
Guarantee deposits received
 
 
838,263
 
 
(34,654)
 
 
34,873
 
 
-
 
 
-
 
 
838,482
 
Total liabilities from financing activities
 
$
125,627,606
 
 
(9,701,925)
 
 
(1,114,381)
 
 
(84,187)
 
 
143,755
 
 
114,870,868
 
 
Refer to note 36 for detailed information of exposures to interest rate, currency, and liquidity risk. Refer to note 39 for assets pledged as collateral to secure the aforementioned long-term borrowings.

Fact Table
Network
128 - Disclosure - Provisions
(http://auo.com/role/Provisions)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of other provisions [text block]
22.
Provisions
 
Movements in provisions for the years ended December 31, 2017 and 2016 were as follows:
 
 
 
Warranties
 
Litigation   and claims
 
Others
 
Total
 
 
(in thousands)
Balance at January 1, 2017
 
$
1,528,898
 
 
 
1,027,328
 
 
 
265,445
 
 
 
2,821,671
 
Additions
 
 
436,464
 
 
 
90,945
 
 
 
4,346
 
 
 
531,755
 
Usage
 
 
(297,829
)
 
 
(1,025,032
)
 
 
-  
 
 
 
(1,322,861
)
Reversals
 
 
(120,704
)
 
 
-  
 
 
 
-  
 
 
 
(120,704
)
Effect of change in exchange rate
 
 
131
 
 
 
(3,721
)
 
 
(20,308
)
 
 
(23,898
)
Balance at December 31, 2017
 
 
1,546,960
 
 
 
89,520
 
 
 
249,483
 
 
 
1,885,963
 
Less: current
 
 
(725,366
)
 
 
(89,520
)
 
 
(4,346
)
 
 
(819,232
)
Noncurrent
 
$
821,594
 
 
 
-  
 
 
 
245,137
 
 
 
1,066,731
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance at January 1, 2016
 
$
1,819,519
 
 
 
4,018,880
 
 
 
297,937
 
 
 
6,136,336
 
Additions
 
 
309,475
 
 
 
597,325
 
 
 
-  
 
 
 
906,800
 
Usage
 
 
(265,917
)
 
 
(3,405,923
)
 
 
-  
 
 
 
(3,671,840
)
Reversals
 
 
(334,174
)
 
 
-  
 
 
 
(25,839
)
 
 
(360,013
)
Effect of change in exchange rate
 
 
(5
)
 
 
(182,954
)
 
 
(6,653
)
 
 
(189,612
)
Balance at December 31, 2016
 
 
1,528,898
 
 
 
1,027,328
 
 
 
265,445
 
 
 
2,821,671
 
Less: current
 
 
(756,079
)
 
 
(1,027,328
)
 
 
-  
 
 
 
(1,783,407
)
Noncurrent
 
$
772,819
 
 
 
-  
 
 
 
265,445
 
 
 
1,038,264
 

Fact Table
Network
129 - Disclosure - Operating Leases
(http://auo.com/role/OperatingLeases)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of leases [text block]
23.
Operating Leases
 
(a)
Lessees
 
Non-cancellable lease payments as of December 31, 2017 and 2016 were as follows:
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Less than one year
 
$
858,207
 
 
843,880
 
Between one and five years
 
 
3,070,676
 
 
3,483,532
 
More than five years
 
 
3,491,748
 
 
4,011,338
 
 
 
$
7,420,631
 
 
8,338,750
 
 
AUO entered into various operating lease agreements for land with Hsinchu Science Park Administration Bureaus beginning from March 1, 1994 for a period of 20 years, with renewal option upon expiration. AUO had on July 2003 and November 2006, entered into various operating lease for land with Central Science Park Administration Bureaus for period from July 28, 2003 till December 31, 2023 and November 9, 2006 till December 31, 2025. All lease amounts are adjusted in accordance with the land value fixed by the government from time to time.
 
AUO had also on February 2008 renewed its lease agreement with Hsinchu Science Park for the land in Longtan Science Park. The period covers from February 9, 2008 till December 31, 2027. The lease amount is adjusted in accordance with the land value fixed by the government from time to time.
 
Pursuant to the resolution of board of directors’ meeting held on December 22, 2016, AUO decided to acquire the land located at Tainan Technology Industrial Park, which is originally leased from Ministry of Economic Affairs with an acquisition price of $558,956 thousand. As of December 31, 2017, the transfer of title and payment of consideration have been completed.
 
In addition, the Company also entered into other operating lease agreements for operating facilities and land, under which the lease agreements will expire from March 2020 through December 2030.
 
Rental expense for operating leases amounted to $1,081,731 thousand, $1,178,774 thousand and $1,115,570 thousand for the years ended December 31, 2017, 2016 and 2015, respectively.
  
(b)
Lessor
  
The Company leased its investment properties to third parties under operating lease. Refer to note 16 for further information on investment properties.
 
Non-cancellable lease receivables as of December 31, 2017 and 2016 were as follows:
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Less than one year
 
$
46,538
 
 
8,052
 
Between one and five years
 
 
404,695
 
 
32,208
 
More than five years
 
 
2,189,936
 
 
87,230
 
 
 
$
2,641,169
 
 
127,490
 
 
The Company also leased partial offices, see note 30 for rental income. Repair and maintenance expenses incurred from aforementioned operating leases for the years ended December 31, 2017, 2016 and 2015 amounted to $18,396 thousand, $449 thousand and $403 thousand, respectively.

Fact Table
Network
130 - Disclosure - Employee Benefits
(http://auo.com/role/EmployeeBenefits)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of employee benefits [text block]
24.
Employee Benefits
 
(a)
Defined benefit plans
 
Pursuant to the ROC Labor Standards Law, AUO and DPTW have established defined benefit pension plans covering their full-time employees in the ROC. These plans provide for retirement benefits to retiring employees based on years of service and the average salary for the six-month period before the employee’s retirement. The funding of these retirement plans by the companies is based on a certain percentage of employees’ total salaries. The funds are deposited with Bank of Taiwan.
 
M.Setek has established defined benefit pension plans providing for retirement benefits to retiring employees based on years of service, position, and certain other factors in accordance with the regulations of its country of establishment.
 
(1)
Recognized liabilities for defined benefit obligation at the reporting date were as follows:
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Present value of defined benefit obligation
 
$
(3,128,927)
 
 
(3,027,176)
 
Fair value of plan assets
 
 
2,213,018
 
 
2,105,690
 
Net defined benefit liability
 
$
(915,909)
 
 
(921,486)
 
 
(2)
Movement in net defined benefit liability
 
The following table shows a reconciliation for net defined benefit liability and its components.
 
 
 
Defined benefit obligation
 
Fair value of plan assets
 
Net defined benefit liability
 
 
 
2017
 
2016
 
2017
 
2016
 
2017
 
2016
 
 
 
(in thousands)
 
Balance at January 1,
 
$
(3,027,176)
 
 
(2,813,072)
 
 
2,105,690
 
 
2,059,399
 
 
(921,486)
 
 
(753,673)
 
Included in profit or loss
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Service cost
 
 
(6,242)
 
 
(18,227)
 
 
-
 
 
-
 
 
(6,242)
 
 
(18,227)
 
Interest cost
 
 
(53,624)
 
 
(53,959)
 
 
-
 
 
-
 
 
(53,624)
 
 
(53,959)
 
Expected return on plan assets
 
 
-
 
 
-
 
 
37,902
 
 
39,054
 
 
37,902
 
 
39,054
 
 
 
 
(59,866)
 
 
(72,186)
 
 
37,902
 
 
39,054
 
 
(21,964)
 
 
(33,132)
 
Included in OCI
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Remeasurements (loss) gain:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Actuarial (loss) gain arising from:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
- demographic assumptions
 
 
(21,054)
 
 
(51,349)
 
 
-
 
 
-
 
 
(21,054)
 
 
(51,349)
 
- financial assumptions
 
 
(126,708)
 
 
(244,142)
 
 
-
 
 
-
 
 
(126,708)
 
 
(244,142)
 
- experience adjustment
 
 
66,016
 
 
91,378
 
 
-
 
 
-
 
 
66,016
 
 
91,378
 
Return on plan assets excluding interest income
 
 
-
 
 
-
 
 
(16,345)
 
 
(21,081)
 
 
(16,345)
 
 
(21,081)
 
 
 
 
(81,746)
 
 
(204,113)
 
 
(16,345)
 
 
(21,081)
 
 
(98,091)
 
 
(225,194)
 
Other
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Contributions paid by the employer
 
 
-
 
 
-
 
 
102,870
 
 
103,761
 
 
102,870
 
 
103,761
 
Benefits paid
 
 
37,528
 
 
62,516
 
 
(17,099)
 
 
(28,443)
 
 
20,429
 
 
34,073
 
Effect of changes in exchange rates and others
 
 
2,333
 
 
(321)
 
 
-
 
 
(47,000)
 
 
2,333
 
 
(47,321)
 
 
 
 
39,861
 
 
62,195
 
 
85,771
 
 
28,318
 
 
125,632
 
 
90,513
 
Balance at December 31,
 
$
(3,128,927)
 
 
(3,027,176)
 
 
2,213,018
 
 
2,105,690
 
 
(915,909)
 
 
(921,486)
 
 
(3)
Plan assets
 
AUO and DPTW contribute an amount based on a certain percentage of employees’ total salaries paid every month to their respective pension funds (the “Funds”), which are administered by the Bureau of Labor Fund, Ministry of Labor and supervised by the Labor Pension Fund Supervisory Committee (the “Committee”) and deposited in the Committee’s name with Bank of Taiwan. Under the ROC Labor Standards Law, the minimum return on the plan assets should not be lower than the average interest rate on two-year time deposits published by the local banks. The government is not only responsible for the determination of the investment strategies and policies, but also for any shortfall in the event that the rate of return is less than the required rate of return.
 
As of December 31, 2017, the Funds deposited in the Committee’s name in the Bank of Taiwan amounted to $2,213,018 thousand. Information on utilization of labor pension funds, including the yield rate of funds and the component of plan assets are available at the Bureau of Labor Funds, Ministry of Labor website.
 
Under the defined benefit plans in Japan, M.Setek is responsible to pay to employees when they are retired.
 
In 2016, DPTW reached an agreement with its employees for terminating its defined benefit plans with a withdrawal of $47,000 thousand from the surplus of pension fund. A loss on settlement amounting to $8,967 thousand is then recognized in profit or loss.
 
(4)
Defined benefit obligation
 
(i)
Principal actuarial assumptions
 
 
 
December 31,
 
 
 
2017
 
2016
 
Discount rate
 
0.21%~1.60%
 
0.33%~1.80%
 
Rate of increase in future salary
 
0.77%~4.49%
 
1.19%~3.79%
 
 
The Company anticipates contributing $102,869 thousand to the defined benefit plans in the next year starting from January 1, 2018.
 
As at December 31, 2017, the weighted-average duration of the defined benefit obligation was between 5 years to 21 years.
 
(ii)
Sensitivity analysis
 
Reasonably possible changes at December 31, 2017 and 2016 to one of the relevant actuarial assumptions, holding other assumptions constant, would have affected the defined benefit obligation by the amounts shown below.
 
 
 
December 31, 2017
 
December 31, 2016
 
 
 
Changes in assumptions
 
Changes in assumptions
 
 
 
+ 0.25%
 
- 0.25%
 
+ 0.25%
 
- 0.25%
 
 
 
(in thousands)
 
(in thousands)
 
Discount rate
 
$
(158,160)
 
 
167,594
 
 
(156,764)
 
 
166,453
 
Rate of increase in future salary
 
$
164,867
 
 
(156,470)
 
 
164,140
 
 
(155,466)
 
 
In practical, the relevant actuarial assumptions are correlated to each other. The approach to develop the sensitivity analysis as above is the same approach to recognize the net defined benefit liability in the statement of financial position.
 
The approach to develop the sensitivity analysis and its relevant actuarial assumptions are the same as those in previous year.
 
(b)
Defined contribution plans
 
Commencing July 1, 2005, pursuant to the ROC Labor Pension Act (the “Act”), employees who elected to participate in the Act or joined the Company after July 1, 2005, are subject to a defined contribution plan under the Act. Under the defined contribution plan, AUO and its subsidiaries located in the ROC contribute monthly at a rate of no less than six percent of an employee’s monthly salary to the employee’s individual pension fund account at the ROC Bureau of Labor Insurance. The Company’s foreign subsidiaries have set up their retirement plans, if necessary, based on their respective local government regulations.
 
AUO and its subsidiaries in the ROC have set up defined contribution plans in accordance with the Act. For the years ended December 31, 2017, 2016 and 2015, these companies set aside $1,003,063 thousand, $936,923 thousand and $927,083 thousand, respectively, of the pension costs under the pension plan to the ROC Bureau of the Labour Insurance. Except for the aforementioned companies, other foreign subsidiaries recognized pension expenses of $892,109 thousand, $1,127,958 thousand and $1,400,994 thousand for the years ended December 31, 2017, 2016 and 2015, respectively, for the defined contribution plans based on their respective local government regulations.

Fact Table
Network
131 - Disclosure - Capital and Other Components of Equity
(http://auo.com/role/CapitalAndOtherComponentsOfEquity)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of share capital, reserves and other equity interest [text block]
25.
Capital and Other Components of Equity
 
(a)
Common stock
 
AUO’s authorized common stock, with par value of $10 per share, both amounted to $100,000,000 thousand as at December 31, 2017 and 2016.
 
AUO’s issued and outstanding common stock, with par value of $10 per share, both amounted to $96,242,451 thousand as at December 31, 2017 and 2016.
 
AUO’s ADSs were listed on the New York Stock Exchange. Each ADS represents 10 shares of common stock. As of December 31, 2017, AUO had issued 38,886 thousand ADSs, which represented 388,863 thousand shares of its common stock.
 
(b)
Capital surplus
 
Balance of capital surplus as of December 31, 2017 and 2016 were as follows:
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
From common stock
 
$
52,756,091
 
 
52,756,091
 
From convertible bonds
 
 
6,049,862
 
 
6,049,862
 
From others
 
 
1,732,552
 
 
1,171,790
 
 
 
$
60,538,505
 
 
59,977,743
 
 
According to the ROC Company Act, capital surplus, including premium from stock issuing and donations received, shall be applied to offset accumulated deficits before it can be used to issue common stock as stock dividends or distribute cash as cash dividends according to the proportion of shareholdings. Pursuant to the ROC Regulations Governing the Offering and Issuance of Securities by Securities Issuers, the total sum of capital surplus capitalized per annum shall not exceed 10 percent of the paid-in capital.
 
(c)
Legal reserve
 
According to the ROC Company Act, 10 percent of the annual earnings after payment of income taxes due and offsetting accumulated deficits, if any, shall be allocated as legal reserve until the accumulated legal reserve equals the paid-in capital. When a company incurs no loss, it may, pursuant to a resolution to be adopted by a shareholders’ meeting, distribute its legal reserve by issuing new shares or by cash, only the portion of legal reserve which exceeds 25 percent of the paid-in capital may be distributed.
 
(d)
Distribution of earnings and dividend policy
 
In accordance with AUO’s amended Articles of Incorporation approved in the annual shareholders’ meeting held on June 15, 2017, where 10 percent of the annual earnings, after payment of income taxes due and offsetting accumulated deficits, if any, shall be set aside as a legal reserve until the accumulated legal reserve equals AUO’s paid-in capital. In addition, a special reserve in accordance with applicable laws and regulations shall also be set aside. The remaining current-year earnings together with accumulated undistributed earnings from preceding years can be distributed after the earnings distribution plan proposed by the board of directors is approved by resolution of the shareholders’ meeting.
 
AUO’s dividend policy is to pay dividends from surplus considering factors such as AUO’s current and future investment environment, cash requirements, domestic and overseas competitive conditions and capital budget requirements, while taking into account shareholders interest, maintenance of balanced dividend and AUOs long-term financial plan. If the current-year retained earnings available for distribution reaches 2% of the paid-in capital of AUO, dividend to be distributed shall be no less than 20% of the current-year retained earnings available for distribution. If the current-year retained earnings available for distribution does not reach 2% of the paid-in capital of AUO, AUO may decide not to distribute dividend. The cash portion of the dividend, which may be in the form of cash and stock, shall not be less than 10% of the total dividend distributed during the year. The dividend distribution ratio aforementioned could be adjusted subject to shareholders’ approval in annual shareholders’ meeting after taking into consideration factors such as finance, business and operations, etc.
 
Pursuant to relevant laws or regulations or as requested by the local authority, total net balance of items which are accounted for as a reduction to the other components of shareholders’ equity shall be set aside from current earnings as special reserve, and not for distribution. Subsequent decrease pertaining to items that are accounted for as a reduction to the other shareholders’ equity shall be reclassified from special reserve to undistributed earnings.
 
AUO’s appropriations of earnings for 2015 had been approved in the shareholders’ meeting held on June 16, 2016. The appropriations and dividends per share were as follows:
 
 
 
For fiscal year 2015
 
 
 
Appropriation of earnings
 
Dividends per
share
 
 
 
(in thousands, except for per share data)
 
Legal reserve
 
$
493,196
 
 
 
 
Cash dividends to shareholders
 
 
3,368,486
 
$
0.35
 
 
 
$
3,861,682
 
 
 
 
 
The aforementioned appropriations of earnings for 2015 was consistent with the resolutions of the board of directors’ meeting held on March 10, 2016.
 
AUO’s appropriations of earnings for 2016 had been approved in the shareholders’ meeting held on June 15, 2017. The appropriations and dividends per share were as follows:
 
 
 
For fiscal year 2016
 
 
 
Appropriation of earnings
 
Dividends per share
 
 
 
(in thousands, except for per share data)
 
Legal reserve
 
$
781,894
 
 
 
 
Cash dividends to shareholders
 
 
5,389,577
 
$
0.56
 
 
 
$
6,171,471
 
 
 
 
 
The aforementioned appropriations of earnings for 2016 was consistent with the resolutions of the board of directors’ meeting held on March 22, 2017.
 
AUO’s appropriations of earnings for 2017 have been approved in the meeting of the board of directors held on March 23, 2018. The appropriations and dividends per share were as follows:
 
 
 
For fiscal year 2017
 
 
 
Appropriation of earnings
 
Dividends per share
 
 
 
 
 
 
 
 
 
 
 
(in thousands, except for per share data)
 
Legal reserve
 
$
3,235,942
 
 
 
 
Cash dividends to shareholders
 
 
14,436,368
 
$
1.50
 
 
 
$
17,672,310
 
 
 
 
 
The appropriations of earnings for 2017 are to be presented for approval in AUO’s 2018 annual shareholders’ meeting.
 
Information on the approval of board of directors and shareholders for AUO’s appropriations of earnings are available at the Market Observation Post System website.
 
(e)
Other components of equity
 
 
 
Cumulative translation differences
 
Unrealized gains (losses) on
available-for-sale financial
assets
 
Unrealized gains (losses) on cash
flow hedges
 
Total
 
 
 
(in thousands)
 
Balance at January 1, 2017
 
$
531,006
 
 
224,299
 
 
21,992
 
 
777,297
 
Foreign operations – foreign currency translation differences
 
 
(1,882,545)
 
 
-
 
 
-
 
 
(1,882,545)
 
Effective portion of changes in fair value of cash flow hedges
 
 
-
 
 
-
 
 
(21,992)
 
 
(21,992)
 
Net change in fair value of available-for-sale financial assets
 
 
-
 
 
1,146,422
 
 
-
 
 
1,146,422
 
Equity-accounted investees – share of other comprehensive income
 
 
(68,637)
 
 
6,310
 
 
-
 
 
(62,327)
 
Related tax
 
 
299,207
 
 
-
 
 
-
 
 
299,207
 
Balance at December 31, 2017
 
$
(1,120,969)
 
 
1,377,031
 
 
-
 
 
256,062
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance at January 1, 2016
 
$
6,540,196
 
 
(539,653)
 
 
14,793
 
 
6,015,336
 
Foreign operations – foreign currency translation differences
 
 
(5,510,836)
 
 
-
 
 
-
 
 
(5,510,836)
 
Effective portion of changes in fair value of cash flow hedges
 
 
-
 
 
-
 
 
7,199
 
 
7,199
 
Net change in fair value of available-for-sale financial assets
 
 
-
 
 
769,410
 
 
-
 
 
769,410
 
Equity-accounted investees – share of other comprehensive income
 
 
(342,162)
 
 
(2,582)
 
 
-
 
 
(344,744)
 
Realized gain on sales of securities reclassified to profit or loss
 
 
(265,849)
 
 
(2,876)
 
 
-
 
 
(268,725)
 
Related tax
 
 
109,657
 
 
-
 
 
-
 
 
109,657
 
Balance at December 31, 2016
 
$
531,006
 
 
224,299
 
 
21,992
 
 
777,297
 
 
 
 
Cumulative translation differences
 
Unrealized gains (losses) on
available-for-sale financial
assets
 
Unrealized gains (losses) on cash
flow hedges
 
Total
 
 
 
(in thousands)
 
Balance at January 1, 2015
 
$
5,766,162
 
 
29,107
 
 
18,440
 
 
5,813,709
 
Foreign operations – foreign currency translation differences
 
 
405,731
 
 
-
 
 
-
 
 
405,731
 
Effective portion of changes in fair value of cash flow hedges
 
 
-
 
 
-
 
 
(3,647)
 
 
(3,647)
 
Net change in fair value of available-for-sale financial assets
 
 
-
 
 
(521,173)
 
 
-
 
 
(521,173)
 
Equity-accounted investees – share of other comprehensive income
 
 
470,545
 
 
22,070
 
 
-
 
 
492,615
 
Realized gain on sales of securities reclassified to profit or loss
 
 
(104,905)
 
 
(69,657)
 
 
-
 
 
(174,562)
 
Related tax
 
 
2,663
 
 
-
 
 
-
 
 
2,663
 
Balance at December 31, 2015
 
$
6,540,196
 
 
(539,653)
 
 
14,793
 
 
6,015,336
 
 
(f)
Non-controlling interests, net of tax
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Balance at the beginning of the year
 
$
18,388,204
 
 
22,648,604
 
 
19,329,254
 
Equity attributable to non-controlling interests:
 
 
 
 
 
 
 
 
 
 
Loss for the year
 
 
(2,120,737)
 
 
(1,211,772)
 
 
(28,161)
 
Adjustment of changes in ownership of investees
 
 
(6,421)
 
 
(191,394)
 
 
(262,229)
 
Foreign currency translation differences
 
 
(355,700)
 
 
(1,867,168)
 
 
(680,218)
 
Remeasurement of defined benefit plans
 
 
201
 
 
(98)
 
 
5,003
 
Proceeds from subsidiaries capital increase
 
 
11,620
 
 
9,590
 
 
10,086,575
 
Effect of disposal of interest in subsidiary to non-controlling interests
 
 
1,258,788
 
 
-
 
 
-
 
Effect of acquisition of non-controlling interests
 
 
-
 
 
37,036
 
 
(5,245,698)
 
Redemption of subsidiary treasury shares
 
 
-
 
 
(865,633)
 
 
(227,676)
 
Others
 
 
(107,454)
 
 
(170,961)
 
 
(328,246)
 
Balance at the end of the year
 
$
17,068,501
 
 
18,388,204
 
 
22,648,604
 

Fact Table
Network
132 - Disclosure - Share-based Payments
(http://auo.com/role/SharebasedPayments)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of share-based payment arrangements [text block]
26.
Share-based Payments
 
The Company’s employee stock option plans were as follows:
 
(a)
DPTW Option Plan
 
DPTW 2011 Employee stock option plan was fully expired on January 6, 2017.
 
Information about DPTW’s outstanding stock options is as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
 
 
Weighted-average exercise price
(per share)
 
Number of
options
(shares)
 
Weighted-average exercise price
(per share)
 
Number of
options
(shares)
 
Outstanding at January 1
 
$
19.04
 
 
2,913,000
 
$
19.36
 
 
3,880,000
 
Options expired
 
 
-
 
 
(2,913,000)
 
 
-
 
 
(967,000)
 
Outstanding at December 31
 
 
-
 
 
-
 
 
19.04
 
 
2,913,000
 
Exercisable at December 31
 
 
 
 
 
-
 
 
 
 
 
2,913,000
 
 
(b)
ACTW Option Plan
 
(1)
The key terms and conditions related to the grants under ACTW’s outstanding employee stock option plan were disclosed as follows:
 
 
 
Grant date
 
Total number of options issued (units in
thousands)
 
Contractual life of options
 
Exercisable period
 
Exercise price
(per share)
 
2014 Employee stock option plan
 
Sep. 1, 2014
 
20
 
Sep.1, 2014 –
Aug. 31, 2019
 
After Aug. 31, 2016
 
$
10
 
 
ACTW 2012 Employee stock option plan was fully expired on August 31, 2017.
 
(2)
The related employee benefit expenses and capital surplus recognized on ACTW’s employee stock options were $474 thousand, $1,534 thousand and $2,386 thousand for the years ended December 31, 2017, 2016 and 2015, respectively.
  
(3)
Fair value of stock options
 
The fair value of the employee stock options granted by ACTW was measured at the dates of grant using the Binomial option pricing model. The valuation information was as follows:
 
 
 
2014 Employee Stock Option Plan
 
Expected volatility
 
 
38.88%
 
Risk-free interest rate
 
 
1.1648%
 
Expected duration
 
 
5 years
 
Fair value at the grant date
 
 
NT$0.20/per share
 
 
(4)
Information about ACTW’s outstanding stock options is as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
 
 
Weighted-average exercise price
(per share)
 
Number of options (shares)
 
Weighted- average exercise price
(per share)
 
Number of options (shares)
 
Outstanding at January 1
 
$
10
 
 
29,209,000
 
$
10
 
 
32,843,000
 
Options exercised
 
 
10
 
 
(1,162,000)
 
 
10
 
 
(959,000)
 
Options expired
 
 
-
 
 
(11,446,000)
 
 
-
 
 
(2,675,000)
 
Outstanding at December 31
 
 
10
 
 
16,601,000
 
 
10
 
 
29,209,000
 
Exercisable at December 31
 
 
 
 
 
12,425,000
 
 
 
 
 
20,578,000
 

Fact Table
Network
133 - Disclosure - Revenue
(http://auo.com/role/Revenue)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of revenue [text block]
27.
Revenue
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Sale of goods
 
$
329,584,136
 
 
318,243,539
 
 
351,566,289
 
Other operating revenue
 
 
11,444,131
 
 
10,845,497
 
 
8,780,205
 
 
 
$
341,028,267
 
 
329,089,036
 
 
360,346,494
 
 
Refer to note 41 for further revenue information by operating segment.

Fact Table
Network
134 - Disclosure - Remuneration to Employees and Directors
(http://auo.com/role/RemunerationToEmployeesAndDirectors)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of information about employees [text block]
28.
Remuneration to Employees and Directors
 
According to AUO’s Articles of Incorporation, AUO should distribute remuneration to employees and directors not less than 5% and not more than 1% of annual profits, respectively, after offsetting accumulated deficits, if any. Only employees, including employees of affiliate companies that meet certain conditions are subject to the abovementioned remuneration which to be distributed in stock or cash. The said conditions and distribution method are decided by board of directors or the personnel authorized by board of directors.
 
AUO accrued remuneration to employees based on the profit before income tax excluding the remuneration to employees and directors for each period, multiplied by the percentage resolved by board of directors. For the years ended December 31, 2017, 2016 and 2015, AUO estimated the remuneration to employees amounting to $4,062,114 thousand, $1,107,486 thousand and $665,815 thousand, respectively. Remuneration to directors was estimated based on the amount expected to pay and recognized together with the remuneration to employees as cost of sales or operating expenses. If remuneration to employees is resolved to be distributed in stock, the number of shares is determined by dividing the amount of remuneration by the closing price of the shares (ignoring ex-dividend effect) on the day preceding the board of directors’ meeting. If there is a change in the proposed amounts after the annual consolidated financial statements are authorized for issue, the differences are accounted for as a change in accounting estimate and adjusted prospectively to next year’s profit or loss.
 
Remuneration to employees and directors for 2017 in the amounts of $4,062,114 thousand and $132,604 thousand, respectively, in cash for payment have been approved in the meeting of board of directors held on March 23, 2018. The aforementioned approved amounts are the same as the amounts charged against earnings of 2017.
 
Remuneration to employees and directors for 2016 in the amounts of $1,107,486 thousand and $24,226 thousand, respectively, in cash for payment had been approved in the meeting of board of directors held on March 22, 2017. The aforementioned approved amounts are the same as the amounts charged against earnings of 2016.
 
Remuneration to employees and directors for 2015 in the amounts of $665,815 thousand and $13,316 thousand, respectively, in cash for payment had been approved in the meeting of board of directors held on March 10, 2016. The aforementioned approved amounts are the same as the amounts charged against earnings of 2015.
 
The information about AUO’s remuneration to employees and directors is available at the Market Observation Post System website.

Fact Table
Network
135 - Disclosure - The Nature of Expenses
(http://auo.com/role/NatureOfExpenses)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of expenses by nature [text block]
29.
The Nature of Expenses
 
(a)
Depreciation of property, plant and equipment
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Recognized in cost of sales
 
$
31,660,279
 
 
34,305,760
 
 
42,558,430
 
Recognized in operating expenses(i)
 
 
4,140,951
 
 
4,228,015
 
 
4,293,057
 
 
 
$
35,801,230
 
 
38,533,775
 
 
46,851,487
 
 
(b)
Amortization of intangible assets
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Recognized in cost of sales
 
$
628,606
 
 
1,159,465
 
 
892,566
 
Recognized in operating expenses(i)
 
 
-
 
 
-
 
 
1,796
 
 
 
$
628,606
 
 
1,159,465
 
 
894,362
 
 
(c)
Employee benefits expenses
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Salaries and wages
 
$
37,818,321
 
 
33,283,639
 
 
34,161,791
 
Labor and health insurances
 
 
1,967,688
 
 
1,804,900
 
 
1,879,782
 
Retirement benefits
 
 
1,917,136
 
 
2,098,013
 
 
2,351,109
 
Other employee benefits
 
 
3,197,324
 
 
3,024,372
 
 
2,910,576
 
 
 
$
44,900,469
 
 
40,210,924
 
 
41,303,258
 
 
 
 
 
 
 
 
 
 
 
 
Employee benefits expense summarized by function
 
 
 
 
 
 
 
 
 
 
Recognized in cost of sales
 
$
34,703,579
 
 
30,950,614
 
 
32,781,145
 
Recognized in operating expenses(i)
 
 
10,196,890
 
 
9,260,310
 
 
8,522,113
 
 
 
$
44,900,469
 
 
40,210,924
 
 
41,303,258
 
 
(i)
Operating expenses are inclusive of selling and distribution expenses, general and administrative expenses and research and development expenses.

Fact Table
Network
136 - Disclosure - Other Income
(http://auo.com/role/OtherIncome)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of other operating income [text block]
30.
Other Income
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Interest income on bank deposits
 
$
591,995
 
 
491,160
 
 
629,057
 
Interest income on government bonds with reverse repurchase agreements and others
 
 
20,215
 
 
3,382
 
 
43,581
 
Rental income, net
 
 
531,442
 
 
527,381
 
 
472,484
 
Dividend income
 
 
248,514
 
 
107,141
 
 
112,661
 
Grants
 
 
1,801,585
 
 
631,750
 
 
337,526
 
Others
 
 
636,146
 
 
619,414
 
 
602,284
 
 
 
$
3,829,897
 
 
2,380,228
 
 
2,197,593
 

Fact Table
Network
137 - Disclosure - Other Gains and Losses
(http://auo.com/role/OtherGainsAndLosses)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisclosureOfOtherGainsAndLossesTextBlock (label)
31.
Other Gains and Losses
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Foreign exchange gains (losses), net
 
$
(1,364,929)
 
 
770,325
 
 
537,248
 
Gains (losses) on valuation of financial assets (liabilities) measured at fair value through profit or loss, net
 
 
1,646,034
 
 
(411,437)
 
 
939,117
 
Gains (losses) on disposals of investments and financial assets, net
 
 
42,788
 
 
(333,858)
 
 
(10,618)
 
Gains on disposals of property, plant and equipment, net
 
 
330,814
 
 
24,278
 
 
585,196
 
Impairment losses on assets
 
 
(1,046,668)
 
 
(34,733)
 
 
(7,026,226)
 
Litigation losses and others
 
 
(584,599)
 
 
(940,248)
 
 
(5,003,037)
 
 
 
$
(976,560)
 
 
(925,673)
 
 
(9,978,320)
 

Fact Table
Network
138 - Disclosure - Finance Costs
(http://auo.com/role/FinanceCosts)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of finance cost [text block]
32.
Finance Costs
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Interest expense on bank borrowings
 
$
2,519,839
 
 
2,072,458
 
 
2,398,159
 
Interest expense on others
 
 
348,022
 
 
635,429
 
 
192,864
 
 
 
$
2,867,861
 
 
2,707,887
 
 
2,591,023
 

Fact Table
Network
139 - Disclosure - Income Taxes
(http://auo.com/role/IncomeTaxes)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of income tax [text block]
33.
Income Taxes
 
The Company cannot file a consolidated tax return under local regulations. Therefore, AUO and its subsidiaries calculate their income taxes liabilities individually on a stand-alone basis using the enacted tax rates in their respective tax jurisdictions.
 
(a)
The components of income tax expense (benefit) for the years ended December 31, 2017, 2016 and 2015 were as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Current income tax expense (benefit):
 
 
 
 
 
 
 
 
 
 
Current year
 
$
3,719,483
 
 
1,601,384
 
 
1,561,194
 
Adjustment to prior years and others
 
 
246,264
 
 
879,337
 
 
(208,609)
 
 
 
 
3,965,747
 
 
2,480,721
 
 
1,352,585
 
 
 
 
 
 
 
 
 
 
 
 
Deferred tax expense (benefit):
 
 
 
 
 
 
 
 
 
 
Temporary differences
 
 
(1,271,415)
 
 
(98,137)
 
 
(163,513)
 
Investment tax credit and tax losses carryforwards
 
 
(3,819,489)
 
 
49,961
 
 
(804,231)
 
 
 
 
(5,090,904)
 
 
(48,176)
 
 
(967,744)
 
Total income tax expense (benefit)
 
$
(1,125,157)
 
 
2,432,545
 
 
384,841
 
 
(b)
Income taxes expense (benefit) recognized directly in other comprehensive income for the years ended December 31, 2017, 2016 and 2015 were as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Items that will never be reclassified to profit or loss:
 
 
 
 
 
 
 
 
 
 
Remeasurement of defined benefit obligations
 
$
(155,930)
 
 
-
 
 
(681)
 
Items that are or may be reclassified subsequently to profit or loss:
 
 
 
 
 
 
 
 
 
 
Foreign operations – foreign currency translation differences
 
$
(316,372)
 
 
(230,202)
 
 
(16,050)
 
 
(c)
Reconciliation of the expected income tax expense (benefit) calculated based on the ROC statutory income tax rate compared with the actual income tax expense (benefit) as reported in the consolidated statements of comprehensive income for the years ended December 31, 2017, 2016 and 2015, was as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
Rate
 
 
Amount
 
Rate
 
Amount
 
Rate
 
Amount
 
 
 
 
 
 
 
(in thousands)
 
 
 
 
(in thousands)
 
 
 
 
(in thousands)
 
Profit before income taxes
 
 
 
 
 
$
39,363,606
 
 
 
 
$
11,185,902
 
 
 
 
$
7,598,850
 
Income tax expense at AUO’s statutory tax rate
 
 
17.00
%
 
 
6,691,813
 
 
17.00
%
 
1,901,603
 
 
17.00
%
 
1,291,804
 
Effect of different subsidiaries income tax rate
 
 
0.89
%
 
 
348,192
 
 
2.55
%
 
285,661
 
 
(21.08)
%
 
(1,601,591)
 
Share of profit of equity-accounted subsidiaries
 
 
(1.80)
%
 
 
(708,417)
 
 
(3.86)
%
 
(432,163)
 
 
(28.84)
%
 
(2,191,605)
 
Effect of changes in statutory income tax rate
 
 
-
 
 
 
-
 
 
-
 
 
-
 
 
4.02
%
 
305,312
 
Effect of change of unrecognized deductible temporary differences, tax losses carryforwards, and investment tax credits
 
 
(27.04)
%
 
 
(10,645,339)
 
 
(9.76)
%
 
(1,091,327)
 
 
24.15
%
 
1,835,311
 
Net of non-taxable income and non-deductible expense
 
 
0.61
%
 
 
241,265
 
 
2.47
%
 
275,706
 
 
0.78
%
 
58,821
 
Loss (gain) from domestic long-term investment
 
 
1.16
%
 
 
457,275
 
 
(1.51)
%
 
(168,484)
 
 
5.41
%
 
411,293
 
Tax on undistributed earnings, net
 
 
7.59
%
 
 
2,987,763
 
 
6.84
%
 
765,419
 
 
6.82
%
 
518,356
 
Adjustments to prior year
 
 
(1.34)
%
 
 
(528,662)
 
 
8.01
%
 
895,861
 
 
(3.14)
%
 
(238,555)
 
Others
 
 
0.08
%
 
 
30,953
 
 
-
 
 
269
 
 
(0.06)
%
 
(4,305)
 
Income tax expense (benefit)
 
 
 
 
 
$
(1,125,157)
 
 
 
 
$
2,432,545
 
 
 
 
$
384,841
 
Effective tax rate
 
 
(2.85)
%
 
 
 
 
 
21.74
%
 
 
 
 
5.06
%
 
 
 
 
The above reconciliation is prepared based on each individual entity of the Company and presented on an aggregate basis.
 
During the year ended December 31, 2017, the Company has utilized previously unrecognized tax losses carryforwards in current year amounting to $7,494,191 thousand and recognized deferred tax assets arising from tax losses carryforwards of $3,878,233 thousand that are expected to be utilized in future periods.
 
(d)
The components of deferred tax assets and liabilities were as follows:
 
 
 
Deferred tax assets
 
Deferred tax liabilities
 
Total
 
 
 
December 31, 2017
 
December 31, 2016
 
December 31, 2017
 
December 31, 2016
 
December 31, 2017
 
December 31, 2016
 
 
 
(in thousands)
 
Investment tax credits
 
$
656,480
 
 
840,112
 
 
-
 
 
-
 
 
656,480
 
 
840,112
 
Tax losses carryforwards
 
 
3,942,012
 
 
-
 
 
-
 
 
-
 
 
3,942,012
 
 
-
 
Unrealized loss and expenses
 
 
284,084
 
 
182,443
 
 
(61,345)
 
 
(3,495)
 
 
222,739
 
 
178,948
 
Inventories write-down
 
 
644,887
 
 
69,938
 
 
-
 
 
-
 
 
644,887
 
 
69,938
 
Foreign investment gains under the equity method
 
 
-
 
 
-
 
 
(890,153)
 
 
(1,091,023)
 
 
(890,153)
 
 
(1,091,023)
 
Remeasurement of defined benefit plans
 
 
155,930
 
 
-
 
 
-
 
 
-
 
 
155,930
 
 
-
 
Foreign operations – foreign currency translation differences
 
 
279,517
 
 
-
 
 
(44,992)
 
 
(81,847)
 
 
234,525
 
 
(81,847)
 
Others
 
 
1,106,104
 
 
644,361
 
 
(641,737)
 
 
(653,899)
 
 
464,367
 
 
(9,538)
 
Deferred tax assets (liabilities)
 
$
7,069,014
 
 
1,736,854
 
 
(1,638,227)
 
 
(1,830,264)
 
 
5,430,787
 
 
(93,410)
 
 
(e)
Changes in deferred tax assets and liabilities were as follows:
 
 
 
January
1, 2016
 
Recognized
in profit or loss
 
Recognized
in other
comprehensive
income
 
Effect of change in consolidated
entities,
exchange rate
and others
 
December
31, 2016
 
Recognized
in profit or
loss
 
Recognized
in other
comprehensive
income
 
Effect of change in consolidated
entities,
exchange rate
and others
 
December
31, 2017
 
 
 
(in thousands)
 
Investment tax credits
 
$
859,300
 
 
-
 
 
-
 
 
(19,188)
 
 
840,112
 
 
(121,696)
 
 
-
 
 
(61,936)
 
 
656,480
 
Tax losses carryforwards
 
 
49,961
 
 
(49,961)
 
 
-
 
 
-
 
 
-
 
 
3,941,185
 
 
-
 
 
827
 
 
3,942,012
 
Unrealized loss and expenses
 
 
187,641
 
 
4,256
 
 
-
 
 
(12,949)
 
 
178,948
 
 
47,383
 
 
-
 
 
(3,592)
 
 
222,739
 
Inventories write-down
 
 
22,848
 
 
49,658
 
 
-
 
 
(2,568)
 
 
69,938
 
 
575,199
 
 
-
 
 
(250)
 
 
644,887
 
Foreign investment losses (gains) under the equity method
 
 
(1,174,733)
 
 
83,710
 
 
-
 
 
-
 
 
(1,091,023)
 
 
200,870
 
 
-
 
 
-
 
 
(890,153)
 
Remeasurement of defined benefit plans
 
 
2,798
 
 
-
 
 
-
 
 
(2,798)
 
 
-
 
 
-
 
 
155,930
 
 
-
 
 
155,930
 
Foreign operations – foreign currency translation differences
 
 
(312,049)
 
 
-
 
 
230,202
 
 
-
 
 
(81,847)
 
 
-
 
 
316,372
 
 
-
 
 
234,525
 
Unrealized gains on available-for-sale financial assets
 
 
(903)
 
 
-
 
 
-
 
 
903
 
 
-
 
 
-
 
 
-
 
 
-
 
 
-
 
Others
 
 
84,734
 
 
(39,487)
 
 
-
 
 
(54,785)
 
 
(9,538)
 
 
447,963
 
 
-
 
 
25,942
 
 
464,367
 
Total
 
$
(280,403)
 
 
48,176
 
 
230,202
 
 
(91,385)
 
 
(93,410)
 
 
5,090,904
 
 
472,302
 
 
(39,009)
 
 
5,430,787
 
 
(f)
Unrecognized deferred tax assets and unrecognized deferred tax liabilities
 
Deferred tax assets have not been recognized in respect of the following items.
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Unused tax losses carryforwards
 
$
25,868,554
 
 
33,392,529
 
Unused investment tax credits
 
 
706,648
 
 
47,268
 
Difference in depreciation expense for tax and financial purposes
 
 
2,104,639
 
 
2,471,376
 
Inventories write-down
 
 
10,328
 
 
536,102
 
Others
 
 
655,974
 
 
3,545,013
 
 
 
$
29,346,143
 
 
39,992,288
 
 
The unused investment tax credits with no expiration for the year ended December 31, 2017 from AUST and ACMK were $677,257 thousand and $29,391 thousand, respectively.
 
Tax loss carryforwards is utilized in accordance with the relevant jurisdictional tax laws and regulations. Net losses from foreign subsidiaries are approved by tax authorities in respective jurisdiction to offset future taxable profits. Under the ROC tax laws, approved tax losses of AUO and its domestic subsidiaries can be carried forward for 10 years to offset future taxable profits.
 
As of December 31, 2017, the expiration period for abovementioned unrecognized deferred tax assets of unused tax losses carryforwards were as follows:
 
 
 
Unrecognized deferred tax assets
 
 
 
Year of assessment
 
(in thousands)
 
Expiration in year
 
2009
 
$
427,346
 
2018 ~ 2019
 
2010
 
 
620,885
 
2019
 
2011
 
 
1,313,095
 
2020 ~ 2021
 
2012
 
 
9,583,402
 
2021 ~ 2022
 
2013
 
 
1,723,631
 
2018 ~ 2023
 
2014
 
 
2,058,670
 
2019 ~ 2024
 
2015
 
 
3,851,129
 
2020 ~ 2025
 
2016
 
 
4,100,117
 
2021 ~ 2026
 
2017 (estimated)
 
 
2,190,279
 
2022 ~ 2027
 
 
 
$
25,868,554
 
 
 
 
As of December 31, 2016, the aggregate taxable temporary differences associated with investments in subsidiaries not recognized as deferred tax liabilities amounted to $448,513 thousand.
 
(g)
Assessments by the tax authorities
 
As of December 31, 2017, the tax authorities have completed the examination of income tax returns of AUO through 2015.
 
(h)
The integrated income tax system
 
The balance of the imputation credit account of AUO as of December 31, 2017 and 2016 was $3,072,019 thousand and $3,878,285 thousand, respectively.
 
The estimated and actual creditable ratios for distribution of AUO’s earnings under Taiwan Financial Reporting Standards of 2017 and 2016, which is for ROC resident shareholders, were 6.44% and 19.27%, respectively.
 
The imputation credit allocated to shareholders is based on its balance as of the date of the dividend distribution. The estimated creditable ratio may change when the actual distribution of the imputation credit is made.
 
The abovementioned integrated income tax information is prepared in accordance with Decree No. 10204562810 announced on October 17, 2013 by the ROC Ministry of Finance.
 
According to the amendment to the ROC Income Tax Act enacted by the office of the President of the ROC on February 7, 2018, effective from January 1, 2018, the Company will no longer be required to establish, record, calculate and distribute its imputation credit account due to the abolishment of the imputation tax system. The information presented above is for reference only.

Fact Table
Network
140 - Disclosure - Earnings per Share
(http://auo.com/role/EarningsPerShare)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of earnings per share [text block]
34.
Earnings per Share
 
(a)
Basic earnings per share for the years ended December 31, 2017, 2016 and 2015 were calculated as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands, except for per share data)
 
Profit attributable to AUO’s shareholders
 
$
42,609,500
 
 
9,965,129
 
 
7,242,170
 
Weighted-average number of common shares outstanding during the year (basic)
 
 
9,624,245
 
 
9,624,245
 
 
9,624,245
 
Basic earnings per share
 
$
4.43
 
 
1.04
 
 
0.75
 
 
(b)
Diluted earnings per share for the years ended December 31, 2017, 2016 and 2015 were calculated as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands, except for per share data)
 
Profit attributable to AUO’s shareholders
 
$
42,609,500
 
 
9,965,129
 
 
7,242,170
 
Effect of convertible bonds
 
 
-
 
 
-
 
 
(340,686)
 
Profit used in the computation of diluted earnings per share
 
$
42,609,500
 
 
9,965,129
 
 
6,901,484
 
Weighted-average number of common shares outstanding during the year (including the effect of dilutive potential common stock):
 
 
 
 
 
 
 
 
 
 
Weighted-average number of common shares (basic)
 
 
9,624,245
 
 
9,624,245
 
 
9,624,245
 
Effect of employee remuneration in stock
 
 
347,903
 
 
107,547
 
 
67,731
 
Effect of convertible bonds
 
 
-
 
 
-
 
 
199,894
 
Weighted-average number of common shares (diluted)
 
 
9,972,148
 
 
9,731,792
 
 
9,891,870
 
Diluted earnings per share
 
$
4.27
 
 
1.02
 
 
0.70
 

Fact Table
Network
141 - Disclosure - Financial Instruments
(http://auo.com/role/FinancialInstruments)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of financial instruments [text block]
35.
Financial Instruments
 
(1)
Fair value and carrying amount
 
The carrying amount of the Company’s non-derivative financial instruments current, including cash and cash equivalents, receivables or payables (including related parties), other current financial assets, and short-term borrowings, were considered to approximate their fair value due to their short-term nature.
 
Except for aforementioned financial instruments, the carrying amount and fair value of other financial instruments of the Company as of December 31, 2017 and 2016 were as follows:
 
 
 
December 31, 2017
 
December 31, 2016
 
 
 
Carrying Amount
 
Fair Value
 
Carrying Amount
 
Fair Value
 
 
 
(in thousands)
 
Financial assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
Financial assets at fair value through profit or loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts
 
$
70,366
 
 
70,366
 
 
65,669
 
 
65,669
 
Available-for-sale financial assets – noncurrent
 
 
4,348,134
 
 
4,348,134
 
 
3,030,278
 
 
3,030,278
 
Loans and receivables:
 
 
 
 
 
 
 
 
 
 
 
 
 
Long-term receivables
 
$
1,790,400
 
 
1,790,400
 
 
1,974,271
 
 
1,974,271
 
Refundable deposits
 
 
515,148
 
 
515,148
 
 
133,221
 
 
133,221
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Financial liabilities:
 
 
 
 
 
 
 
 
 
 
 
 
 
Financial liabilities at fair value through profit or loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts
 
 
106,597
 
 
106,597
 
 
896,998
 
 
896,998
 
Derivative financial liabilities for hedging:
 
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate swap contracts
 
 
-
 
 
-
 
 
3,540
 
 
3,540
 
Financial liabilities measured at amortized cost:
 
 
 
 
 
 
 
 
 
 
 
 
 
Long-term borrowings (including current installments)
 
 
110,608,010
 
 
110,608,010
 
 
124,262,620
 
 
124,262,620
 
Guarantee deposits received
 
 
838,482
 
 
838,482
 
 
838,263
 
 
838,263
 
 
(2)
Valuation techniques and assumptions applied in fair value measurement
 
The fair values of financial assets and financial liabilities with standard terms and conditions and traded in active markets are determined with reference to quoted market prices. Except the aforementioned, the fair vales of other financial assets and financial liabilities are measured using the generally accepted pricing models based on discounted cash flow analysis.
 
Descriptions of the valuation methodologies, including the valuation techniques and the input(s) used in the fair value measurements for assets and liabilities are discussed as follows:
 
The fair values of financial assets which were publicly traded on active markets were determined with reference to quoted market prices.
 
Those non-publicly traded equity securities which are included in available-for-sale financial assets, are determined using an analysis of various factors. These factors include the private company’s current operating and future expected performance, as well as changes in the industry and market prospects.
 
For derivative financial instruments such as foreign currency forward contacts and interest rate swap contracts, fair values are estimated using industry standard valuation models. These models use market-based observable inputs including interest rate curves, foreign exchange rates, and forward and spot prices for currencies to project fair value.
 
Fair value of long-term receivable is determined by discounting the expected cash flows at a market interest rate.
 
The refundable deposits and guarantee deposits received are based on carrying amount as there is no fixed maturity.
 
The fair value of floating-rate long-term borrowings approximates to their carrying value.
 
(3)
Fair value measurements recognized in the consolidated statements of financial position
 
The Company determines fair value based on assumptions that market participants would use in pricing an asset or a liability in the principal or most advantageous market. When considering market participant assumptions in fair value measurements, the following fair value hierarchy distinguishes between observable and unobservable inputs, which are categorized in one of the following levels:
 
(i)
Level 1 inputs: Unadjusted quoted prices for identical assets or liabilities in active markets.
 
(ii)
Level 2 inputs: Other than quoted prices included within Level 1, inputs are observable for the asset or liability, either directly (i.e. as prices) or indirectly (i.e. derived from prices).
 
(iii)
Level 3 inputs: Derived from valuation techniques that include inputs for the asset or liability that are not based on observable market data (unobservable inputs).
 
The fair value measurement level of an asset or a liability within their fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. The Company uses valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs.
 
Financial assets and liabilities measured at fair value on a recurring basis were as follows:
 
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
 
 
(in thousands)
 
December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
 
Financial assets at fair value through profit or loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts
 
$
-
 
 
70,366
 
 
-
 
 
70,366
 
Available-for-sale financial assets – noncurrent
 
 
4,170,319
 
 
-
 
 
177,815
 
 
4,348,134
 
Loans and receivables:
 
 
 
 
 
 
 
 
 
 
 
 
 
Long-term receivables
 
 
-
 
 
1,790,400
 
 
-
 
 
1,790,400
 
Financial liabilities at fair value through profit or loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts
 
 
-
 
 
106,597
 
 
-
 
 
106,597
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
Financial assets at fair value through profit or loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts
 
$
-
 
 
65,669
 
 
-
 
 
65,669
 
Available-for-sale financial assets – noncurrent
 
 
2,836,696
 
 
-
 
 
193,582
 
 
3,030,278
 
Loans and receivables:
 
 
 
 
 
 
 
 
 
 
 
 
 
Long-term receivables
 
 
-
 
 
1,974,271
 
 
-
 
 
1,974,271
 
Financial liabilities at fair value through profit or loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts
 
 
-
 
 
896,998
 
 
-
 
 
896,998
 
Derivative financial liabilities for hedging:
 
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate swap contracts
 
 
-
 
 
3,540
 
 
-
 
 
3,540
 
 
There were no transfers between Level 1 and 2 for the years ended December 31, 2017 and 2016.
 
(4)
Reconciliation for recurring fair value measurements categorized within Level 3
 
Changes in Level 3 fair value measurements for the years ended December 31, 2017, 2016 and 2015 were as follows:
 
 
 
Available-for-sale financial assets without quoted market prices
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Balance at the beginning of the year
 
$
193,582
 
 
70,938
 
 
37,345
 
Net realized/unrealized gains (losses) included in:
 
 
 
 
 
 
 
 
 
 
Profit or loss(i)
 
 
(30,000)
 
 
(686)
 
 
99,517
 
Other comprehensive income
 
 
-
 
 
-
 
 
-
 
Purchases
 
 
14,233
 
 
66,948
 
 
33,593
 
Transfer in
 
 
-
 
 
56,400
 
 
-
 
Disposals
 
 
-
 
 
-
 
 
(99,517)
 
Effect of change in exchange rate
 
 
-
 
 
(18)
 
 
-
 
Balance at the end of the year
 
$
177,815
 
 
193,582
 
 
70,938
 
 
(i)
Change in unrealized losses, which were included in profit or loss, relating to those available-for-sale assets without quoted market prices held at December 31, 2017, 2016 and 2015 were $30,000 thousand, $686 thousand and nil, respectively.
 
(5)
Description of valuation processes for fair value measurements categorized within Level 3
 
Fair value measurements of assets and liabilities are determined using various valuation techniques, including the discounted cash flows and other valuation models. As deemed necessary, the Company utilizes the assistance of external experts in performing the valuation and the development of such valuation models, which include the analysis and comparison of model valuation results to market transactions and market data. The Company’s management reviews the policy and procedures of fair value measurements annually, or more frequently as deemed necessary. When a fair value measurement involves one or more significant inputs that are unobservable, the Company monitors the valuation process discreetly and examines whether the inputs are used the most relevant market data available.
 
The Company holds certain non-publicly listed stocks which are not traded in an active market. The Company reviews the current operating and future expected performance of these private companies based on evaluation of the latest available financial statements, as well as changes in the industry and market prospects based on publicly available information. An improvement (decline) in the operating and future expected performance results in a higher (lower) fair value measurement. Generally, changes in the industry and market prospects are directionally consistent with the changes in operating and future performance of the companies.

Fact Table
Network
142 - Disclosure - Financial Risk Management
(http://auo.com/role/FinancialRiskManagement)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of financial risk management [text block]
36.
Financial Risk Management
 
(a)
Risk management framework
 
The managerial officers of related divisions are appointed to review, control, trace and monitor the strategic risks, financial risks and operational risks faced by the Company. The managerial officers report to executive officers the progress of risk controls from time to time and, if necessary, report to the board of directors, depending on the extent of impact of risks.
 
(b)
Financial risk information
 
Hereinafter discloses information about the Company’s exposure to variable risks, and the goals, policies and procedures of the Company’s risk measurement and risk management.
 
The Company is exposed to the following risks due to usage of financial instruments:
 
(1)
Credit risk
 
Credit risk is the risk of financial loss to the Company if a customer or counterparty to a financial instrument fails to meet its contractual obligations. The Company’s exposures to credit risk are mainly from:
 
(i)
The carrying amount of financial assets recognized in the consolidated statements of financial position.
 
(ii)
The amount of contingent liabilities as a result from the Company providing financial guarantee to its customers.
 
The Company’s potential credit risk is derived primarily from cash in bank, cash equivalents and trade receivables. The Company deposits its cash and cash equivalent investments with various reputable financial institutions of high credit quality. The Company also entered into reverse repurchase agreements with securities firms or banks in Taiwan covering government bonds that classified as cash equivalents. There should be no major concerns for the performance capability of trading counterparts. Management performs periodic evaluations of the relative credit standing of these financial institutions and limits the amount of credit exposure with any one institution. Management believes that there is a limited concentration of credit risk in cash and cash equivalent investments.
 
The majority of the Company’s customers are in high technology industries. Management continuously evaluates and controls the credit quality, credit limit and financial strength of its customers to ensure any overdue receivables are taken necessary procedures. The Company also flexibly makes use of prepayments, accounts receivable factoring and credit insurance as credit enhancement instruments. If necessary, the Company will request collaterals or assurance from its customers in order to reduce the credit risk from particular customers.
 
Additionally, on the reporting date, the Company reviews the recoverability of its receivables to provide appropriate valuation allowances. Consequently, management believes there is a limited concentration of its credit risk.
 
For the years ended December 31, 2017 and 2016, the Company’s five largest customers accounted for 39.0% and 36.3%, respectively, of the Company’s consolidated net revenue. There is no other significant concentration of credit risk.
 
Refer to note 9 for aging analysis of accounts receivable and the movement in the allowance of doubtful accounts receivable.
 
For credit of guarantee, the Company’s policy is to provide financial guarantees only to wholly-owned subsidiaries.
 
(2)
Liquidity risk
 
Liquidity risk is the risk that the Company will encounter difficulty in meeting the obligations associated with its financial liabilities that are settled by delivering cash or another financial asset due to an economic downturn or unbalanced demand and supply resulting in a significant drop in product prices. The Company’s approach to managing liquidity is to ensure, as far as possible, that it always have sufficient liquidity to meet its liabilities when due, under both normal and stressed conditions.
 
Liquidity risk of the Company is monitored through its corporate treasury department which tracks the development of the actual cash flow position for the Company and uses input from a number of sources in order to forecast the overall liquidity position both on a short and long term basis. Corporate treasury invests surplus cash in money market deposits with appropriate maturities to ensure sufficient liquidity is available to meet liabilities when due, without incurring unacceptable losses or risking damage to the Company’s reputation.
 
The following, except for payables (including related parties) and equipment and construction payable, are the contractual maturities of other financial liabilities. The amounts include estimated interest payments (except for short-term borrowings) but exclude the impact of netting agreements.
 
 
 
Contractual cash
flows
 
2018.1.1~
2018.12.31
 
2019.1.1~
2020.12.31
 
2021.1.1~
2022.12.31
 
2023 and
thereafter
 
 
 
(in thousands)
 
December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Non-derivative financial liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Short-term borrowings
 
$
3,424,376
 
 
3,424,376
 
 
-
 
 
-
 
 
-
 
Long-term borrowings (including current installments)
 
 
119,344,944
 
 
10,941,692
 
 
68,455,501
 
 
33,892,568
 
 
6,055,183
 
Refundable deposits
 
 
838,482
 
 
33,510
 
 
9,902
 
 
-
 
 
795,070
 
Derivative financial instruments
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts – inflows
 
 
(22,124,574)
 
 
(22,124,574)
 
 
-
 
 
-
 
 
-
 
Foreign currency forward contracts – outflows
 
 
22,170,245
 
 
22,170,245
 
 
-
 
 
-
 
 
-
 
 
 
$
123,653,473
 
 
14,445,249
 
 
68,465,403
 
 
33,892,568
 
 
6,850,253
 
 
 
 
Contractual cash
flows
 
2017.1.1~
2017.12.31
 
2018.1.1~
2019.12.31
 
2020.1.1~
2021.12.31
 
2022 and
thereafter
 
 
 
(in thousands)
 
December 31, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Non-derivative financial liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Short-term borrowings
 
$
526,723
 
 
526,723
 
 
-
 
 
-
 
 
-
 
Long-term borrowings (including current installments)
 
 
133,125,692
 
 
21,116,908
 
 
75,423,482
 
 
27,662,194
 
 
8,923,108
 
Refundable deposits
 
 
838,263
 
 
75,970
 
 
3,078
 
 
7,275
 
 
751,940
 
Derivative financial instruments
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts – inflows
 
 
(37,819,838)
 
 
(37,819,838)
 
 
-
 
 
-
 
 
-
 
Foreign currency forward contracts – outflows
 
 
38,625,310
 
 
38,625,310
 
 
-
 
 
-
 
 
-
 
Interest rate swap contracts
 
 
3,446
 
 
3,446
 
 
-
 
 
-
 
 
-
 
 
 
$
135,299,596
 
 
22,528,519
 
 
75,426,560
 
 
27,669,469
 
 
9,675,048
 
 
The Company is not expecting that the cash flows included in the maturity analysis could occur significantly earlier or at significantly different amounts.
 
As at December 31, 2017, the Company’s total current assets exceeded its total current liabilities by $69,910,848 thousand. Management believes the Company’s existing unused credit facilities under its existing loan agreements, together with net cash flows expected to be generated from its operating activities, will be sufficient for the Company to fulfill its payment obligations over the next twelve months. Therefore, management believes that the Company does not have significant liquidity risk.
 
(3)
Market risk
 
Market risk is the risk that changes in market prices, such as foreign exchange rates, interest rates and equity prices, which will affect the Company’s income or the value of its holdings of financial instruments. The objective of market risk management is to manage and control market risk exposures within acceptable range, while optimizing the return.
 
The Company buys and sells derivatives, and also incurs financial liabilities, in order to manage market risks. All such transactions are executed in accordance with the Company’s handling procedures for conducting derivative transactions, and also monitored by internal audit department.
 
(i)
Currency risk
 
The Company is exposed to currency risk on foreign currency denominated financial assets and liabilities arising from operating, financing and investing activities such that the Company uses forward exchange contracts to hedge its currency risk. Gains and losses derived from the foreign currency fluctuations on underlying assets and liabilities are likely to offset. However, transactions of derivative financial instruments help minimize the impact of foreign currency fluctuations, but the risk cannot be fully eliminated.
 
The Company periodically examines portions exposed to currency risks for individual asset and liability denominated in foreign currency and uses forward contracts as hedging instruments to hedge positions exposed to risks. The contracts have maturity dates that do not exceed six months, and do not meet the criteria for hedge accounting.
 
A.
Exposure of currency risk
 
The Company’s significant exposure to foreign currency risk was as follows:
 
 
 
Foreign currency amounts
 
Exchange
rate
 
NTD
 
 
 
(in thousands)
 
 
 
 
(in thousands)
 
December 31, 2017
 
 
 
 
 
 
 
 
 
 
Financial assets
 
 
 
 
 
 
 
 
 
 
Monetary items
 
 
 
 
 
 
 
 
 
 
USD
 
$
2,084,406
 
 
29.840
 
 
62,198,675
 
JPY
 
 
10,228,194
 
 
0.2644
 
 
2,704,334
 
EUR
 
 
46,517
 
 
35.632
 
 
1,657,494
 
Non-monetary items
 
 
 
 
 
 
 
 
 
 
USD
 
 
3,300
 
 
29.840
 
 
98,472
 
RMB
 
 
19,426
 
 
4.5697
 
 
88,771
 
 
 
 
Foreign currency amounts
 
Exchange
rate
 
NTD
 
 
 
(in thousands)
 
 
 
 
(in thousands)
 
Financial liabilities
 
 
 
 
 
 
 
 
 
 
Monetary items
 
 
 
 
 
 
 
 
 
 
USD
 
 
1,048,371
 
 
29.840
 
 
31,283,391
 
JPY
 
 
27,100,546
 
 
0.2644
 
 
7,165,384
 
EUR
 
 
418
 
 
35.632
 
 
14,894
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2016
 
 
 
 
 
 
 
 
 
 
Financial assets
 
 
 
 
 
 
 
 
 
 
Monetary items
 
 
 
 
 
 
 
 
 
 
USD
 
$
2,287,148
 
 
32.312
 
 
73,902,326
 
JPY
 
 
20,236,416
 
 
0.2773
 
 
5,611,558
 
EUR
 
 
106,660
 
 
33.895
 
 
3,615,241
 
Non-monetary items
 
 
 
 
 
 
 
 
 
 
USD
 
 
3,000
 
 
32.312
 
 
96,936
 
RMB
 
 
20,758
 
 
4.6391
 
 
96,298
 
 
 
 
 
 
 
 
 
 
 
 
Financial liabilities
 
 
 
 
 
 
 
 
 
 
Monetary items
 
 
 
 
 
 
 
 
 
 
USD
 
 
1,099,799
 
 
32.312
 
 
35,536,705
 
JPY
 
 
26,820,343
 
 
0.2773
 
 
7,437,281
 
EUR
 
 
987
 
 
33.895
 
 
33,454
 
 
B.
Sensitivity analysis
 
The Company’s exposure to foreign currency risk arises from the translation of the foreign currency exchange gains and losses on cash and cash equivalents, trade receivables, loans and borrowings and trade payables that are denominated in foreign currency.
 
Depreciation or appreciation of the NTD by 1% against the USD, EUR and JPY at December 31, 2017 and 2016, while all other variables were remained constant, would have increased or decreased the net profit before tax for the years ended December 31, 2017 and 2016 as follows:
 
 
 
For the years ended
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
1% of depreciation
 
$
280,968
 
 
401,217
 
1% of appreciation
 
 
(280,968)
 
 
(401,217)
 
  
C.
Foreign exchange gain (loss) on monetary items
 
With varieties of functional currencies within the consolidated entities of the Company, the Company disclosed foreign exchange gain (loss) on monetary items in aggregate. The aggregate of realized and unrealized foreign exchange gains (losses) for the years ended December 31, 2017, 2016 and 2015 were $(1,364,929) thousand, $770,325 thousand and $537,248 thousand, respectively.
 
(ii)
Interest rate risk
 
The Company’s exposure to changes in interest rates is mainly from floating-rate long-term debt obligations. Any change in interest rates will cause the effective interest rates of long-term borrowings to change and thus cause the future cash flows to fluctuate over time. The Company enters into and designates interest rate swaps as hedges of the variability in cash flows attributable to interest rate risk.
 
Assuming the amount of floating-rate debts at the end of the reporting period had been outstanding for the entire year and all other variables were remained constant, an increase or a decrease in the interest rate by 0.25% would have resulted in a decrease or an increase in the net profit before tax for the years ended December 31, 2017, 2016 and 2015 by $277,612 thousand, $307,464 thousand and $262,936 thousand, respectively.
 
(iii)
Equity price risk
 
See note 8 for disclosure of equity price risk analysis.

Fact Table
Network
143 - Disclosure - Capital Management
(http://auo.com/role/CapitalManagement)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of objectives, policies and processes for managing capital [text block]
37.
Capital Management
 
Through clear understanding and managing of significant changes in external environment, related industry characteristics, and corporate growth plan, the Company manages its capital structure to ensure it has sufficient financial resources to sustain proper liquidity, to invest in capital expenditures and research and development expenses, to repay debts and to distribute dividends in accordance to its plan. The management pursues the most suitable capital structure by monitoring and maintaining proper financial ratios as below. The Company aims to enhance the returns of its shareholders through achieving an optimized debt-to-equity ratio from time to time.
 
 
 
December 31,
 
 
 
2017
 
 
2016
 
 
 
(in thousands)
 
Total liabilities
 
$
217,352,838
 
 
 
229,024,452
 
Total equity
 
 
212,817,851
 
 
 
176,836,313
 
Interest-bearing debts
 
 
114,032,386
 
 
 
124,789,343
 
Debt-to-equity ratio
 
 
102
%
 
 
130
%
Interest-bearing debt-to-equity ratio
 
 
54
%
 
 
71
%
Net debt-to-equity ratio(1)
 
 
4
%
 
 
25
%
 
(1) Net debt-to-equity ratio is defined as interest-bearing debts less cash and cash equivalents divided by total equity.

Fact Table
Network
144 - Disclosure - Related-party Transactions
(http://auo.com/role/RelatedpartyTransactions)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of related party [text block]
38.
Related-party Transactions
 
All inter-company transactions and balances between AUO and its subsidiaries are eliminated in the consolidated financial statements. The transactions between the Company and its related parties are set out as follows:
 
(a)
Compensation to key management personnel
 
Key management personnel’s compensation comprised:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(in thousands)
 
Short-term employee benefits
 
$
566,231
 
 
354,883
 
 
365,310
 
Post-employment benefits
 
 
2,244
 
 
1,937
 
 
2,168
 
 
 
$
568,475
 
 
356,820
 
 
367,478
 
 
(b)
Except for otherwise disclosed in other notes to the consolidated financial statements, the Company’s significant related party transactions and balances were as follows:
 
(1)
Sales
 
 
 
Sales
 
Accounts receivable
from related parties
 
 
 
For the years ended December 31,
 
December 31,
 
 
 
2017
 
2016
 
2015
 
2017
 
2016
 
 
 
(in thousands)
 
Associates(1)
 
$
1,216,868
 
 
554,889
 
 
8,745,681
 
 
184,948
 
 
58,755
 
Joint ventures
 
 
-
 
 
4,105,390
 
 
5,453,152
 
 
-
 
 
-
 
Others(1)
 
 
11,959,720
 
 
12,767,161
 
 
6,005,175
 
 
1,668,114
 
 
2,474,469
 
 
 
$
13,176,588
 
 
17,427,440
 
 
20,204,008
 
 
1,853,062
 
 
2,533,224
 
 
The collection terms for sales to related parties were month-end 30 to 55 days. The pricing for sales to related parties were not materially different from those with third parties.
 
(2)
Purchases
 
 
 
Purchases
 
Accounts payable to related parties
 
 
 
For the years ended December 31,
 
December 31,
 
 
 
2017
 
2016
 
2015
 
2017
 
2016
 
 
 
(in thousands)
 
Associates(1)
 
$
8,667,555
 
 
9,886,487
 
 
19,563,609
 
 
3,233,050
 
 
3,734,927
 
Joint ventures
 
 
1,057,106
 
 
3,754,404
 
 
4,786,344
 
 
-
 
 
-
 
Others(1)
 
 
17,549,228
 
 
18,317,386
 
 
10,587,095
 
 
4,431,681
 
 
5,088,138
 
 
 
$
27,273,889
 
 
31,958,277
 
 
34,937,048
 
 
7,664,731
 
 
8,823,065
 
 
The payment terms for purchases from related parties were 30 to 120 days. The pricing and payment terms with related parties were not materially different from those with third parties.
 
(3)
Acquisition of property, plant and equipment
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Associates(1)
 
$
1,549
 
 
7,391
 
 
368,171
 
Others(1)
 
 
2,801
 
 
-
 
 
326
 
 
 
$
4,350
 
 
7,391
 
 
368,497
 
 
(4)
Disposal of property, plant and equipment and others
 
 
 
Proceeds from disposal
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Associates(1)
 
$
-
 
 
926
 
 
-
 
Joint ventures
 
 
-
 
 
-
 
 
8
 
Others(1)
 
 
3,352
 
 
-
 
 
1,790
 
 
 
$
3,352
 
 
926
 
 
1,798
 
 
 
 
Gains on disposal
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Associates(1)
 
$
-
 
 
22
 
 
-
 
Joint ventures
 
 
-
 
 
-
 
 
8
 
Others(1)
 
 
2,212
 
 
-
 
 
36
 
 
 
$
2,212
 
 
22
 
 
44
 
 
(5)
Other related party transactions
 
 
 
Other receivables due from
related parties
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Associates(1)
 
$
47,746
 
 
10,970
 
Others(1)
 
 
6,347
 
 
23,318
 
 
 
$
54,093
 
 
34,288
 
 
 
 
Other payables due to related parties (including equipment payable)
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Associates(1)
 
$
9,009
 
 
16,218
 
Joint ventures
 
 
292
 
 
406
 
Others(1)
 
 
15,137
 
 
10,717
 
 
 
$
24,438
 
 
27,341
 
 
 
 
Rental income
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Associates(1)
 
$
48,223
 
 
31,858
 
 
61,159
 
Joint ventures
 
 
6,611
 
 
6,611
 
 
6,659
 
Others(1)
 
 
82,427
 
 
90,032
 
 
47,271
 
 
 
$
137,261
 
 
128,501
 
 
115,089
 
 
 
 
Administration and other income
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Associates(1)
 
$
14,311
 
 
15,083
 
 
21,132
 
Joint ventures
 
 
-
 
 
8,301
 
 
11,538
 
Others(1)
 
 
9,246
 
 
5,174
 
 
2,889
 
 
 
$
23,557
 
 
28,558
 
 
35,559
 
 
 
 
Rental and other expenses
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Associates(1)
 
$
28,017
 
 
36,499
 
 
104,415
 
Joint ventures
 
 
1,389
 
 
21,821
 
 
1,168
 
Others(1)
 
 
35,040
 
 
55,131
 
 
40,546
 
 
 
$
64,446
 
 
113,451
 
 
146,129
 
 
(1)
In May 2015, the Company ceased having significant influence over Qisda, as such Qisda was no longer an associate. However, Qisda and its subsidiaries still remained as a related party and the related transaction amounts starting from June 2015 are included in the “Others” category.
   
The Company leased portion of its facilities to related parties. The collection term was 15 days from quarter-end, and the pricing was not materially different from that with third parties.
 
For the years ended December 31, 2017, 2016 and 2015, cash dividends declared by related parties of $420,547 thousand, $307,481 thousand and $380,433 thousand, respectively, were received by the Company.

Fact Table
Network
145 - Disclosure - Pledged Assets
(http://auo.com/role/PledgedAssets)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of collateral [text block]
39.
Pledged Assets
 
The carrying amounts of the assets which the Company pledged as collateral were as follows:
 
 
 
 
 
December 31,
 
Pledged assets
 
Pledged to secure
 
2017
 
2016
 
 
 
 
 
(in thousands)
 
Restricted cash in banks(i)
 
R&;D projects, oil purchases and guarantees for foreign labors and customs duties
 
$
87,105
 
 
93,379
 
Land and building
 (including investment property)
 
Long-term borrowings
 
 
42,031,020
 
 
52,076,840
 
Machinery, equipment and prepayments for equipment
 
Long-term borrowings
 
 
17,143,591
 
 
27,058,442
 
 
 
 
 
$
59,261,716
 
 
79,228,661
 
(i) Classified as other current financial assets and other noncurrent assets by its liquidity.

Fact Table
Network
146 - Disclosure - Contingent Liabilities and Commitments
(http://auo.com/role/ContingentLiabilitiesAndCommitments)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of commitments and contingent liabilities [text block]
40.
Contingent Liabilities and Commitments
 
The significant commitments and contingencies of the Company as of December 31, 2017, in addition to those disclosed in other notes to the consolidated financial statements, were as follows:
 
(a)
Outstanding letters of credit
 
As at December 31, 2017, the Company had the following outstanding letters of credit for the purpose of purchasing machinery and equipment and materials:
 
Currency
 
 
December 31,
2017
 
 
 
 
(in thousands)
 
USD
 
 
 
15,029
 
JPY
 
 
 
2,761,778
 
 
The letters of credit are irrevocable and will expire upon the Company’s payment of the related obligations.
 
(b)
Technology licensing agreements
 
Starting 1998, AUO has entered into technical collaboration, patent licensing, and/or patent cross licensing agreements with Fujitsu Display Technologies Corp. (subsequently assumed by Fujitsu Limited), Toppan Printing Co., Ltd. (“Toppan Printing”), Semiconductor Energy Laboratory Co., Ltd., Japan Display Inc. (formerly Japan Display East Inc./Hitachi Displays, Ltd.), Panasonic Liquid Crystal Display Co., Ltd. (formerly IPS Alpha Technology, Ltd.), LG Display Co., Ltd., Sharp Corporation, Samsung Electronics Co., Ltd., Hydis Technologies Co., Ltd., Seiko Epson Corporation and others. AUO believes that it is in compliance with the terms and conditions of the aforementioned agreements.
 
(c)
Purchase commitments
 
In April 2011, AUO signed a long-term materials supply agreement with Korean OCI Company Ltd. (“OCI”), under which, AUO and OCI agreed on the supply of certain polysilicon. Purchase prices were determined and adjusted through negotiation on each order basis between both parties. AUO paid proportionate prepayments in three installments to OCI in 2011. In May 2015 and December 2016, the supply agreement was amended and the amended effective term is from April 15, 2011 to December 31, 2020.
 
Starting from 2006, DPTW has entered into a long-term materials supply agreement with Evonik Forhouse Optical Polymers Corp. (“EFOP”), under which, DPTW and EFOP agreed on the supply of certain optical-grade molding compounds at negotiated prices and quantities.
 
As at December 31, 2017, significant outstanding purchase commitments for construction in progress, property, plant and equipment totaled $25,561,337 thousand.
 
(d)
Litigation
 
(1)
Investigation for alleged violation of antitrust and competition laws
 
Since December 2006, AUO and certain of its subsidiaries, along with various competitors in the TFT-LCD industry, were under investigation for alleged violation of antitrust and competition laws of certain jurisdictions. Set forth below is a list of the material antitrust proceedings against AUO and certain of its subsidiaries.
 
United States
 
In 2012, the Northern California Court rendered judgment against AUO and AUUS regarding the alleged violations of Section 1 of the Sherman Act and imposed a fine of US$500 million against AUO. Such fine was fully paid by AUO by September 2015. The Northern California Court also placed AUO and AUUS on probation as well as assigned a monitor and required AUO to adopt an effective antitrust compliance program. The probationary period and monitorship ended in December 2016.
 
(2)
Antitrust civil actions lawsuits in the United States and other jurisdictions
 
There were over 100 civil lawsuits filed against AUO, AUUS and various manufacturers in the TFT-LCD industry in the United States and Canada alleging, among other things, antitrust violations. As of March 23, 2018, AUO and AUUS have reached settlement agreements with the relevant plaintiffs.
 
In addition to the above cases in the United States and Canada, a lawsuit was filed by certain consumers in Israel against certain LCD manufacturers including AUO in the District Court of the Central District in Israel (“Israeli Court”). The defendants contested various issues including whether the lawsuit was properly served. In December 2016, the Israeli Court overturned the original decision and revoked the permission for this case to serve out of Israeli jurisdiction. The plaintiffs lodged an appeal to the Israeli Supreme Court but the Israeli Supreme Court overruled the appeal in August 2017. In January 2018, the parties reached a settlement agreement and agreed to commence the required proceedings for withdrawing the lawsuit.
 
(3)
Others
 
In July and August of 2014, SunPower Technology, Ltd. (“SPTL”), AUO and AUSG submitted certain disputes for arbitration in the International Court of Arbitration of the International Chamber of Commerce in San Francisco, U.S. in connection with the joint venture agreement among the parties. The arbitration was amicably settled by the parties in September 2016. AUSG sold all of its shares in the joint venture company AUSP to SPTL at the price of US$170,100 thousand. Please see note 12(b) for further details. The shares purchase price shall be paid by SPTL in accordance with the agreement and guaranteed by SunPower Corporation, SPTL’s parent company. The parties have reached amicable agreements regarding the relevant issues, including terminations of the joint venture agreement and relevant agreements and agreed to terminate the arbitration.
 
At the end of February 2017, one of AUO’s subsidiaries in the PRC, AUSZ received an administrative complaint filed by Shenzhen China Star Optoelectronics Technology Co., Ltd. (“CSOT”) alleging that AUSZ infringes two PRC patents, and the complaint requests that AUSZ cease the alleged infringing act. Based on the Company’s preliminary assessment, it believes that its subsidiary does not infringe the two PRC patents as alleged, and further that the two PRC patents appear to be invalid. In response to such administrative complaint, AUSZ has filed a request to invalidate the two PRC patents accordingly. In April 2017, CSOT filed civil lawsuits in the Intermediate People’s Court of Shenzhen Municipality against the subsidiary claiming infringement of the same two PRC patents. In June 2017, CSOT filed civil lawsuits in the No.1 Intermediate People’s Court of Chongqing Municipality against the subsidiary claiming infringement of three PRC patents (including one of the above mentioned PRC patents). CSOT requested that AUSZ ceases the alleged infringing act and claimed approximate RMB49.91 million for economic loss for each of the said respective four PRC patents and compensation for reasonable fees and litigation expenses such as notarization fees and attorney fees incurred by CSOT. On September 24, 2017, the relevant parties reached a settlement agreement and agreed to withdraw relevant legal proceedings.
 
In addition to the matters described above, the Company is also a party to other litigations or proceedings that arise during the ordinary course of business. Except as mentioned above, the Company, to its knowledge, is not involved as a defendant in any material litigation or proceeding which could be expected to have a material adverse effect on the Company’s business or results of operations.
 
The Company has made certain provisions with respect to certain of the above lawsuits as the management deems appropriate, considering factors such as the nature of the litigation or claims, the materiality of the amount of possible loss, the progress of the cases and the opinions or views of legal counsel and other advisors. However, for certain cases described above where the legal proceedings and/or lawsuits are in their early stage or where management does not have sufficient information for assessment of the financial exposure, management is unable to determine if the final outcome of the cases will be unfavorable to the Company and/or to estimate the potential losses. The ultimate resolution of the legal proceedings and/or lawsuits cannot be predicted with certainty. While management intends to defend certain of the lawsuits described above vigorously, there is a possibility that one or more legal proceedings or lawsuits may result in an unfavorable outcome to the Company.
 
Management will reassess all litigation and claims at each reporting date based on the facts and circumstances that exist at that time, and will make additional provisions or adjustments to previous provisions, as considered necessary under IFRS. Such additional provisions or adjustments may have a material adverse effect on the Company’s business, results of operations and future prospects. See note 20 for further information about legal provisions and the movements in those legal provisions.
 
(e)
Others
 
There have been environmental proceedings relating to the development project of the Central Taiwan Science Park in Houli, Taichung, which AUO’s second 8.5-generation fab is located at and which has been established since 2010. The proceedings were initiated by six residents in Houli District, Taichung City (the “Plaintiffs”) to object the administrative dispositions of the environmental assessment and development approval issued in 2010 by the Environmental Protection Administration (“EPA”) of the Executive Yuan of Taiwan to the third phrase development area in the Central Taiwan Science Park (the “Project”). On August 8, 2014, the Plaintiffs reached a settlement with the defendants (i.e. the governmental authorities, including the EPA of the Executive Yuan of Taiwan, the Ministry of Science and Technology (former National Science Council of the ROC Executive Yuan) and the Central Taiwan Science Park Development Office) in the Taipei High Administrative Court. The second phase environmental impact assessment for the Project continues to proceed. On December 14, 2017, the EPA of the Executive Yuan of Taiwan held the third review meeting of the investigation group. The review meeting reached the conclusion of suggesting approval for the Project. The Central Taiwan Science Park Bureau is now reviewing the comments and conclusion of the review meeting and will reply to the Environmental Impact Assessment Committee of the EPA for further discussion. After approval, the Project will be submitted to the Environmental Impact Assessment General Meeting for review. Currently management does not believe that this event will have a material adverse effect on the Company’s operation and will continue to monitor the development of this event.

Fact Table
Network
147 - Disclosure - Segment, Geographic and Revenue Information
(http://auo.com/role/SegmentGeographicAndRevenueInformation)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory (label)
41.
Segment, Geographic and Revenue Information
 
(a)
Operating segment information
 
The Company has two operating segments: display and solar. The display segment generally is engaged in the research, development, design, manufacturing and sale of flat panel displays and most of our products are TFT-LCD panels. The solar segment primarily is engaged in the design, manufacturing and sale of ingots, solar wafers and solar modules, as well as providing technical engineering services and maintenance services for solar system projects.
 
The Company’s operating segment information for the years ended December 31, 2017, 2016 and 2015 was as follows:
 
 
 
For the year ended December 31, 2017
 
 
 
Display
 
Solar
 
Total
segments
 
 
 
(in thousands)
 
Net revenue from external customers
 
$
322,335,330
 
 
18,692,937
 
 
341,028,267
 
Depreciation and amortization
 
$
34,816,463
 
 
1,613,373
 
 
36,429,836
 
Inventory write-down
 
$
3,423,097
 
 
333,629
 
 
3,756,726
 
Segment profit (loss)(i)
 
$
39,971,375
 
 
(832,251)
 
 
39,139,124
 
Other income
 
 
 
 
 
 
 
 
3,829,897
 
Other gains and losses
 
 
 
 
 
 
 
 
(976,560)
 
Finance costs
 
 
 
 
 
 
 
 
(2,867,861)
 
Share of profit of equity-accounted investees
 
 
 
 
 
 
 
 
239,006
 
Consolidated profit before income tax
 
 
 
 
 
 
 
$
39,363,606
 
 
 
 
For the year ended December 31, 2016
 
 
 
Display
 
Solar
 
Total
segments
 
 
 
(in thousands)
 
Net revenue from external customers
 
$
304,826,682
 
 
24,262,354
 
 
329,089,036
 
Depreciation and amortization
 
$
37,860,430
 
 
1,832,810
 
 
39,693,240
 
Inventory write-down
 
$
3,288,067
 
 
385,146
 
 
3,673,213
 
Segment profit (loss)(i)
 
$
12,703,548
 
 
(365,092)
 
 
12,338,456
 
Other income
 
 
 
 
 
 
 
 
2,380,228
 
Other gains and losses
 
 
 
 
 
 
 
 
(925,673)
 
Finance costs
 
 
 
 
 
 
 
 
(2,707,887)
 
Share of profit of equity-accounted investees
 
 
 
 
 
 
 
 
100,778
 
Consolidated profit before income tax
 
 
 
 
 
 
 
$
11,185,902
 
 
 
 
For the year ended December 31, 2015
 
 
 
Display
 
Solar
 
Total
segments
 
 
 
(in thousands)
 
Net revenue from external customers
 
$
333,392,294
 
 
26,954,200
 
 
360,346,494
 
Depreciation and amortization
 
$
44,790,075
 
 
2,955,774
 
 
47,745,849
 
Inventory write-down
 
$
5,607,166
 
 
54,100
 
 
5,661,266
 
Segment profit (loss)(i)
 
$
19,225,952
 
 
(1,704,804)
 
 
17,521,148
 
Other income
 
 
 
 
 
 
 
 
2,197,593
 
Other gains and losses
 
 
 
 
 
 
 
 
(9,978,320)
 
Finance costs
 
 
 
 
 
 
 
 
(2,591,023)
 
Share of profit of equity-accounted investees
 
 
 
 
 
 
 
 
449,452
 
Consolidated profit before income tax
 
 
 
 
 
 
 
$
7,598,850
 
 
(i)
There were no intersegment revenues or other transactions between operating segments for the years ended December 31, 2017, 2016 and 2015.
 
(b)
Geographic information
 
The geographic breakdown for the years ended December 31, 2017, 2016 and 2015 was as follows:
 
(1)
Net revenue from external customers
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
Region
 
(in thousands)
 
PRC
 
$
125,341,648
 
 
115,110,137
 
 
123,476,526
 
Taiwan
 
 
108,288,387
 
 
104,059,325
 
 
119,626,443
 
Japan
 
 
32,739,262
 
 
33,346,041
 
 
37,903,886
 
Singapore
 
 
35,939,290
 
 
31,776,305
 
 
30,210,618
 
Others
 
 
38,719,680
 
 
44,797,228
 
 
49,129,021
 
 
 
$
341,028,267
 
 
329,089,036
 
 
360,346,494
 
 
(2)
Consolidated noncurrent assets(ii)
 
 
 
December 31,
 
 
 
2017
 
2016
 
Region
 
(in thousands)
 
Taiwan
 
$
154,097,271
 
 
148,829,366
 
PRC
 
 
67,846,109
 
 
68,356,214
 
Others
 
 
11,037,333
 
 
15,383,473
 
 
 
$
232,980,713
 
 
232,569,053
 
 
(ii)
Noncurrent assets are not inclusive of financial instruments, deferred tax assets, and prepaid pension.
 
(c)
Major customer information
 
For the years ended December 31, 2017, 2016 and 2015, sales to individual customers representing greater than 10% of consolidated net revenue were as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
%
 
2016
 
%
 
2015
 
%
 
 
 
(in thousands)
 
Customer A
 
$
43,645,518
 
 
13
 
 
37,306,348
 
 
11
 
 
42,173,089
 
 
12
 
 
(d)
Product information
 
The consolidated net revenue by principal products was as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Products for Televisions
 
$
152,442,198
 
 
140,519,923
 
 
159,534,820
 
Products for Mobile PCs
 
 
56,209,501
 
 
52,721,494
 
 
52,488,064
 
Products for Mobile Devices
 
 
14,858,803
 
 
14,170,637
 
 
23,622,445
 
Products for Monitors
 
 
45,696,144
 
 
44,668,054
 
 
48,234,547
 
Products for Commercial and Others(iii)
 
 
53,128,684
 
 
52,746,574
 
 
49,512,418
 
Solar Products
 
 
18,692,937
 
 
24,262,354
 
 
26,954,200
 
Total
 
$
341,028,267
 
 
329,089,036
 
 
360,346,494
 
 
(iii)
Others include sales from products for other applications and sales of raw materials, components and from service charges.

Fact Table
Network
148 - Disclosure - Subsequent Events
(http://auo.com/role/SubsequentEvents)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of events after reporting period [text block]
42.
Subsequent Events
 
FLWJ was resolved by its board of directors for liquidation in October 2012. As of December 31, 2017, the liquidation was still in process. In January 2018, FLMI has received the proceeds of USD7,905 thousand as return of capital from FLWJ.
 
According to the amendment to the ROC Income Tax Act enacted by the office of the President of the ROC on February 7, 2018, an increase in the corporate income tax rate from 17% to 20% is applicable upon filing the corporate income tax return starting from fiscal year 2018 onwards. This increase does not affect the amounts of the current and deferred taxes recognized on December 31, 2017. However, this amendment will increase the Company’s current and deferred tax charge accordingly in the future. Assuming the new tax rate is applied in calculating the taxable temporary differences and unused tax losses carryforwards recognized on December 31, 2017, the deferred tax assets and deferred tax liabilities would increase by $998,697 thousand and $214,490 thousand, respectively.
 
On March 13, 2018, the Company acquired 100% of the common shares and preferred shares of ComQi Ltd. (“ComQi”) for total consideration not exceeding USD28 million. ComQi is engaged in providing content management services.

Fact Table
Network
149 - Disclosure - Summary of Significant Accounting Policies (Policies)
(http://auo.com/role/SummaryOfSignificantAccountingPoliciesPolicies)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DescriptionOfAccountingPolicyForClassificationOfCurrentAndNonCurrentAssetsAndLiabilitiesTextBlock (label)
(e)
Classification of current and non-current assets and liabilities
 
An asset is classified as current when:
 
(1)
The asset expected to realize, or intends to sell or consume, in its normal operating cycle;
 
(2)
The asset primarily held for the purpose of trading;
 
(3)
The asset expected to realize within twelve months after the reporting date; or
 
(4)
Cash and cash equivalent excluding the asset restricted to be exchanged or used to settle a liability for at least twelve months after the reporting date.
  
All other assets are classified as non-current.
 
A liability is classified as current when:
 
(1)
The liability expected to settle in its normal operating cycle;
 
(2)
The liability primarily held for the purpose of trading;
 
(3)
The liability is due to be settled within twelve months after the reporting date; or
 
(4)
The Company does not have an unconditional right to defer settlement of the liability for at least twelve months after the reporting date. Terms of a liability that could, at the option of the counterparty, result in its settlement by the issue of equity instruments, do not affect its classification.
 
All other liabilities are classified as non-current.
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DescriptionOfAccountingPolicyForLongTermPrepaidRentTextBlock (label)
(n)
Long-term prepaid rent
 
Long-term prepaid rent is for the right to use of land (classified as other noncurrent assets), which is amortized over the shorter of economic useful life or the covenant period on a straight-line basis.
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for business combinations [text block]
(w)
Business combinations
 
The Company accounts for business combinations using the acquisition method. The consideration transferred in the acquisition is measured at fair value, as are identifiable net assets acquired. Goodwill is measured as the excess of the aggregate of the consideration transferred and the amount of any non-controlling interests in the acquiree over the net identifiable assets acquired and liabilities assumed. If the fair value of the net assets acquired is in excess of the aggregate consideration transferred, after reassessing all of the assets acquired and all of the liabilities assumed being properly identified, the difference is recognized in profit or loss as a gain on bargain purchase.
 
Acquisition-related costs are expensed as incurred, except that the costs are related to the issue of debt or equity securities.
 
Each identifiable asset and liability is measured at its acquisition-date fair value. Non-controlling interests in an acquiree that are present ownership interests and entitle their holders to a proportionate share of the entity’s net assets in the event of liquidation are measured at either fair value or the present ownership instruments’ proportionate share in the recognized amounts of the acquiree’s net identifiable assets. All other components of non-controlling interests shall be measured at their acquisition-date fair values, unless another measurement basis is required by IFRSs.
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for earnings per share [text block]
(x)
Earnings (loss) per share
 
Basic earnings (loss) per share is computed by dividing profit or loss attributable to the shareholders of AUO by the weighted-average number of common shares outstanding during the period. In computing diluted earnings per share, profit or loss attributable to the shareholders of AUO and the weighted-average number of common shares outstanding during the period are adjusted for the effects of dilutive potential common stock, assuming dilutive share equivalents had been issued. The weighted-average outstanding shares are retroactively adjusted for the effects of stock dividends transferred from retained earnings and capital surplus to common stock.
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for employee benefits [text block]
(t)
Employee benefits
 
(1)
Defined contribution plans
 
Obligations for contributions to defined contribution pension plans are recognized as an employee benefit expense in profit or loss in the periods during which services are rendered by employees.
 
(2)
Defined benefit plans
 
The Company’s net obligation in respect of defined benefit pension plans is calculated separately for each benefit plan by estimating the amount of future benefit that employees have earned in the current and prior periods, discounting that amount and deducting the fair value of any plan assets. Discount rate is determined by reference to the yield rate of Taiwan government bonds at the reporting date. The calculation of defined benefit obligations is performed annually by a qualified actuary using the Projected Unit Credit Cost Method.
 
Remeasurements of the net defined benefit liability (asset) which comprise actuarial gains and losses, the return on plan assets (excluding interest) and the effect of the asset ceiling (if any, excluding interest), are recognized in other comprehensive income in the period in which they occur, and which then are reflected in retained earnings and will not be reclassified to profit or loss.
 
(3)
Short-term employee benefits
 
Short-term employee benefit obligations, which are due to be settled within twelve months are measured on an undiscounted basis and are expensed as the related service is provided.
 
The expected cost of cash bonus or profit-sharing plans, which is anticipated to be paid within one year, are recognized as a liability when the Company has a present legal or constructive obligation to pay this amount as a result of past service provided by the employee, and the obligation can be estimated reliably.
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for financial instruments [text block]
(g)
Financial Instruments
 
Financial assets and financial liabilities are initially recognized when the Company becomes a party to the contractual provisions of the instruments.
 
(1)
Financial assets
 
The Company classifies financial assets into the following categories: financial assets measured at fair value through profit or loss, receivables and available-for-sale financial assets.
 
(i)
Financial assets measured at fair value through profit or loss
 
The Company has certain financial assets classified in this category to hedge its exposure to foreign exchange and interest rate risks arising from operating and financing activities. When a derivative financial instrument is not effective as a hedge the Company accounts for it as a financial asset or liability measured at fair value through profit or loss. See note 4(g)(3) for further detail of the Company’s derivative financial instruments and hedge accounting policy.
 
(ii)
Available-for-sale financial assets
 
Available-for-sale financial assets are non-derivative financial assets that are either designated as available-for-sale or are not classified as receivables or financial assets measured at fair value through profit or loss. Available-for-sale financial assets are recognized initially at fair value, plus any directly attributable transaction cost. Subsequent to initial recognition, they are measured at fair value and changes therein, other than impairment losses, dividend income and foreign currency differences related to monetary financial assets, are recognized in other comprehensive income and presented within equity in unrealized gains (losses) on available-for-sale financial assets. When an investment is derecognized, the cumulative gain or loss in equity is reclassified to profit or loss. A regular way, purchase or sale of financial assets shall be recognized and derecognized, as applicable, using trade date accounting.
 
Investments in equity instruments that do not have a quoted market price in an active market, and whose fair value cannot be reliably measured, are carried at their cost less any impairment losses.
 
Cash dividends on equity instruments are recognized in profit or loss on the date that the Company’s right to receive dividends is established.
 
(iii)
Receivables
 
Receivables are financial assets with fixed or determinable payments that are not quoted in an active market. Receivables comprise trade receivables and other receivables. Such assets are recognized initially at fair value, plus any directly attributable transaction costs. Subsequently, receivables are measured at amortized cost using the effective interest method, less any impairment. If the effect of discounting is immaterial, the short-term receivables are measured at the original amount.
 
(iv)
Impairment of financial assets
 
Financial assets not measured at fair value through profit or loss are assessed at each reporting date for indicators of impairment. Financial assets are considered to be impaired if an objective evidence indicates that, as a result of one or more events that occurred after the initial recognition of the financial asset, the estimated future cash flows of those assets have been negatively impacted.
 
When an available-for-sale equity security is considered to be impaired, cumulative gains or losses previously recognized in other comprehensive income are reclassified to profit or loss. Such impairment losses are not reversed through profit or loss. However, any subsequent recovery in the fair value of an impaired available-for-sale equity security is recognized in other comprehensive income and accumulated in other components of equity.
  
For receivables, the Company first assesses whether objective evidence of impairment exists that are individually significant. If there is objective evidence that an impairment loss has occurred, the amount of impairment loss is assessed individually. For receivables other than those aforementioned, the Company groups those assets and collectively assesses them for impairment. An impairment loss for trade receivables is reflected in an allowance account against the receivables. When it is determined a receivable is uncollectible, it is written off from the allowance account. Any subsequent recovery of receivable previously written off is credited against the allowance account. Changes in the amount of the allowance accounts are recognized in profit or loss.
 
For equity instruments without a quoted market price in an active market, the objective evidence of impairment includes the investees’ financial information, current operating result, future business plans and relevant industry and public market information. An impairment loss for this kind of equity instruments is reduced from the carrying amount and any impairment loss recognized is not reversed through profit or loss in subsequent periods.
 
Bad debt expenses and reversal of allowance for doubtful debts for trade receivables are recognized in general and administrative expenses while impairment losses and reversal of impairment for financial assets other than receivables are recognized in other gains and losses.
 
(v)
De-recognition of financial assets
 
The Company derecognizes financial assets when the contractual rights of the cash inflow from the asset are terminated, or when the Company transfers substantially all the risks and rewards of ownership of the financial assets to another entity.
 
On de-recognition of a financial asset in its entirety, the difference between the carrying amount and the sum of the consideration received or receivable and any cumulative gain or loss that had been recognized in other comprehensive income is recognized in profit or loss.
 
(2)
Financial liabilities
 
The Company classifies financial liabilities into the following categories: convertible bonds, financial liabilities measured at fair value through profit or loss and other financial liabilities.
 
(i)
Convertible bonds
 
Convertible bonds issued by AUO give bondholders the right to convert bonds into a given number of equity instruments of AUO at a specific conversion price. The derivatives embedded in the convertible bonds are recognized initially at fair value in financial liabilities measured at fair value through profit or loss. The difference between the par value of the convertible bonds and the fair value of the derivatives is recognized in convertible bonds payable.
 
Subsequent to initial recognition, the liability component of the convertible bonds is measured at amortized cost using the effective interest method. Convertible option is measured at fair value using Least Square Monte Carlo simulation and changes therein are recognized in profit or loss.
 
Transaction costs that relate to the issue of the convertible bonds are allocated to the liability and the convertible option components in proportion to their relative fair value. Transaction costs allocated to the convertible option are recognized directly in profit or loss. Transaction costs allocated to the liability component are included in the initial carrying amount of the liability component and amortized using the effective interest method.
 
(ii)
Financial liabilities measured at fair value through profit or loss
 
The Company designates financial liabilities in this category as held for trading for the purpose of hedging exposure to foreign exchange and interest rate risks arising from operating and financing activities. When a derivative financial instrument is not effective as a hedge the Company accounts for it as a financial asset or liability measured at fair value through profit or loss. See note 4(g)(3) for further detail of the Company’s derivative financial instruments and hedge accounting policy.
 
The Company designates financial liabilities, other than the one mentioned above, as measured at fair value through profit or loss at initial recognition. Attributable transaction costs are recognized in profit or loss as incurred. Financial liabilities in this category are subsequently measured at fair value and changes therein, which takes into account any interest expense, are recognized in profit or loss.
 
(iii)
Other financial liabilities
 
Financial liabilities not classified as held for trading, or not designated as measured at fair value through profit or loss (including loans and borrowings, trade and other payables), are measured at fair value, plus any directly attributable transaction cost at the time of initial recognition. Subsequent to initial recognition, they are measured at amortized cost calculated using the effective interest method, except for insignificant recognition of interest expense from short-term borrowings and trade payables. Interest expense not capitalized as an asset cost is recognized in profit or loss.
     
(iv)
De-recognition of financial liabilities
 
The Company derecognizes financial liabilities when the contractual obligation has been discharged, cancelled or expired. The difference between the carrying amount and the consideration paid or payable, including any non-cash assets transferred or liabilities assumed is recognized in profit or loss.
 
(v)
Offsetting of financial assets and liabilities
 
The Company presents financial assets and liabilities on a net basis when the Company has the legally enforceable rights to offset, and intends to settle such financial assets and liabilities on a net basis or to realize the assets and settle the liabilities simultaneously.
 
(3)
Derivative financial instruments and hedge accounting
 
The Company holds derivative financial instruments to hedge its foreign currency and interest rate exposures. Derivatives are recognized initially at fair value, and attributable transaction costs are recognized in profit or loss as incurred. Subsequent to initial recognition, derivatives are measured at fair value, and changes therein are recognized in profit or loss.
 
When a derivative is designated as a hedging instrument, its timing of recognition in profit or loss is determined based on the nature of the hedging relationship. When the fair value of a derivative instrument is positive, it is classified as a financial asset, and when the fair value is negative, it is classified as a financial liability.
 
When a derivative is designated as a cash flow hedge, the changes in the fair value of the derivative that is determined to be effective is recognized in other comprehensive income and accumulated in other components of equity – unrealized gains (losses) on cash flow hedges. Any ineffective portion of changes in the fair value of the derivative is recognized in profit or loss.
 
When the hedged item is recognized in profit or loss, amounts previously recognized in other comprehensive income and accumulated in equity are reclassified to profit or loss in the same period or periods during which the hedged item affects profit or loss, and it is presented in the same accounting caption with the hedged item recognized in the consolidated statements of comprehensive income. When a cash flow hedge is expected to recognize as a non-financial asset or liability, amounts previously recognized in other comprehensive income and accumulated in other components of equity – unrealized gains (losses) on cash flow hedges are reclassified as the initial cost of the non-financial asset or liability.
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for foreign currency translation [text block]
(d)
Foreign currency
 
(1)
Foreign currency transactions
 
Transactions in foreign currencies are translated to the respective functional currencies of the individual entities of the Company at exchange rates at the dates of the transactions. Monetary assets and liabilities denominated in foreign currencies at the reporting date are retranslated to the functional currency at the exchange rate at that date and the resulting exchange differences are included in profit or loss for the year. Non-monetary assets and liabilities denominated in foreign currencies that are measured at fair value are retranslated to the functional currency at the exchange rate at the date when the fair value was determined. The resulting exchange differences are included in profit or loss for the year except for those arising from the retranslation of non-monetary items in respect of which gains and losses are recognized directly in other comprehensive income, in which case, the exchange differences are also recognized directly in other comprehensive income. Non-monetary items in foreign currencies that are measured at historical cost are translated using the exchange rate at the date of the transaction.
 
Exchange differences arising from the effective portion of changes in the fair value of derivatives that are designated and qualified as cash flow hedges are recognized in other comprehensive income.
 
(2)
Foreign operations
 
For the purpose of presenting consolidated financial statements, the assets and liabilities of the Company’s foreign operations are translated into NTD using the exchange rates at each reporting date. Income and expenses of foreign operations are translated at the average exchange rates for the period unless the exchange rates fluctuate significantly during the period; in that case, the exchange rates at the dates of the transactions are used. Foreign currency differences are recognized in other comprehensive income within equity, except to the extent that the translation difference is allocated to non-controlling interests.
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for impairment of non-financial assets [text block]
(q)
Impairment – non-financial assets
 
Other than inventories, deferred tax assets and noncurrent assets held for sale, the carrying amounts of the Company’s investment property measured at cost and long-term non-financial assets (property, plant and equipment and other intangible assets with finite useful lives), are reviewed at the reporting date to determine whether there is any indication of impairment. When there is an indication of impairment exists for the aforementioned assets, the recoverable amount of the asset is estimated. If it is not possible to estimate the recoverable amount of an individual asset, the Company estimates the recoverable amount of the cash-generating unit (“CGU”) to which the asset has been allocated to.
 
In performing an impairment test for the aforementioned assets, the estimated recoverable amount is evaluated in terms of an asset or a CGU. Any excess of the carrying amount of the asset or its related CGU over its recoverable amount is recognized as an impairment loss. The recoverable amount of an asset or a CGU is the higher of its fair value less costs of disposal and its value in use.
 
If there is evidence that the accumulated impairment loss of an asset other than goodwill and intangible assets with indefinite useful lives in prior years no longer exists or has diminished, the amount previously recognized as an impairment loss is reversed, and the carrying amount of the asset or CGU is increased to the revised estimate of its recoverable amount. The increase in the carrying amount shall not exceed the carrying amount (net of depreciation or amortization) had no impairment loss been recognized for the asset in prior years.
 
For goodwill and intangible assets with indefinite useful lives or that are not yet available for use, are required to be tested for impairment at least annually. Any excess of the carrying amount of the asset over its recoverable amount is recognized as an impairment loss. Goodwill acquired in a business combination is allocated to CGUs that are expected to benefit from the synergies of the combination. Impairment losses recognized in respect of a CGU are allocated first to reduce the carrying amount of any goodwill allocated to the unit, then the carrying amounts of the other assets in the unit on a pro rata basis. The impairment loss recognized on goodwill and intangible assets with indefinite useful lives is not reversed.
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for income tax [text block]
(v)
Income taxes
 
Income tax expense comprises current and deferred taxes.
 
(1)
Current taxes
 
Current taxes comprise the expected tax payable or receivable on the taxable income or losses for the year and any adjustments to tax payable or receivable in respect of previous years. It is measured using tax rates enacted or substantively enacted tax rate at the reporting date.
 
In accordance with the ROC Income Tax Act, undistributed earnings from the companies located in the Republic of China, if any, is subject to an additional 10% surtax. The 10% tax on unappropriated earnings is recognized during the period the earnings arise and adjusted to the extent that distributions are approved by the shareholders in the following year.
  
(2)
Deferred taxes
 
Deferred taxes are recognized in respect of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Deferred tax liabilities are recognized for temporary difference of future taxable income.
 
Deferred tax assets are recognized for unused tax losses, unused tax credits and deductible temporary differences to the extent that it is probable that future taxable profits will be available against which they can be utilized. Future taxable profits are determined based on the reversal of relevant taxable temporary differences. If the amount of taxable temporary differences is insufficient to recognize a deferred tax asset in full, then future taxable profits are considered based on the business plans for individual subsidiaries in the Company and adjusted for reversals of existing temporary differences. Deferred tax assets are reviewed at each reporting date and reduced to the extent that it is no longer probable that the related tax benefit will be realized, by considering nature of industry cycles, statutory tax deduction years and projected future taxable income. Deferred tax assets which originally not recognized is also reviewed at each reporting date and recognized to the extent that it is probable that future taxable profits will be available to allow all or part of the deferred tax asset to be recovered.
 
Deferred taxes liabilities are recognized for taxable temporary differences related to investments in subsidiaries, associates and joint arrangements, however, if the Company is able to control the timing of the reversal of the taxable temporary differences and it is probable that they will not reverse in the foreseeable future, deferred taxes are not recognized.
 
Deferred tax is measured at the tax rates that are expected to be applied to temporary differences when the reverse, using tax rates enacted or substantively enacted tax rate on the reporting date. Deferred tax assets and liabilities are offset only if certain criteria are met.
 
Current taxes and deferred taxes are recognized in profit or loss except to the extent that it relates to items recognized directly in equity or other comprehensive income.
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for intangible assets and goodwill [text block]
(p)
Intangible assets
 
(1)
Goodwill
 
Goodwill is recognized when the purchase price exceeds the fair value of identifiable net assets acquired in a business combination. Goodwill is measured at cost less accumulated impairment losses.
 
Investor-level goodwill is included in the carrying amounts of the equity investments. The impairment losses for the goodwill within the equity-accounted investees are accounted for as deductions of carrying amounts of investments in equity-accounted investees.
 
(2)
Research and development
 
During the research phase, activities are carried out to obtain and understand new scientific or technical knowledge. Expenditures during this phase are recognized in profit or loss as incurred.
 
Expenditure arising from development is capitalized as an intangible asset when the Company demonstrates all of the following:
 
(i)
the technical feasibility of completing the intangible asset so that it will be available for use or sale;
 
(ii)
its intention to complete the intangible asset and use or sell it;
 
(iii)
its ability to use or sell the intangible asset;
 
(iv)
the probability that the intangible asset will generate probable future economic benefits;
 
(v)
the availability of adequate technical, financial and other resources to complete the development and to use or sell the intangible asset; and
 
(vi)
its ability to measure reliably the expenditure attributable to the intangible asset during its development.
 
Development expenditure which fails to meet the criteria for recognition as an intangible asset is reflected in profit or loss when incurred. Capitalized development expenditure is measured at cost less accumulated amortization and any accumulated impairment losses.
 
(3)
Other intangible assets
 
Other intangible assets acquired are measured at cost less accumulated amortization and any accumulated impairment losses.
 
(4)
Subsequent expenditure
 
Subsequent expenditure is capitalized only when it increases the future economic benefits embodied in the specific asset to which it relates. All other expenditure, including expenditure on internally generated goodwill and brands, is recognized in profit or loss as incurred.
 
(5)
Amortization
 
The depreciable amount of an intangible asset is the cost less its residual value. Other than goodwill and intangible assets with indefinite useful life, an intangible asset with a finite useful life is amortized over 3 to 20 years using the straight-line method from the date that the asset is made available for use. The amortization charge is recognized in profit or loss.
 
The residual value, amortization period, and amortization method are reviewed at least annually at each annual reporting date, and any changes therein are accounted for as changes in accounting estimates.
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for investment in associates [text block]
(j)
Investments in associates
 
Associates are those entities in which the Company has the power to exercise significant influence, but not control or joint control, over their financial and operating policies.
 
Investments in associates are accounted for using the equity method and are recognized initially at cost. The cost of the investment includes transaction costs. The carrying amount of the investment in associates includes goodwill, which is arising from the acquisition, less any accumulated impairment losses.
 
The difference between acquisition cost and fair value of associates’ identifiable assets and liabilities as of the acquisition date is accounted for as goodwill. Goodwill is included in the original investment cost of acquired associates and is not amortized. If the fair value of identified assets and liabilities is in excess of acquisition cost, the remaining excess over acquisition cost is recognized as a gain in profit or loss.
 
If an equity security is not acquired through cash, that is, by providing services or other assets, then the fair value of such security or the fair value of the services or assets surrendered, whichever is more objectively determinable, is the purchase price of the security. If an equity investment of associates is acquired by providing subsequent services and the cost is determined based on the fair value of such services, the Company defers and recognizes revenue using a reasonable amortization method over the future period when the service is rendered.
 
The consolidated financial statements include the Company’s share of the profit or loss and other comprehensive income of associates, after adjustments to align the accounting policies with those of the Company, from the date that significant influence commences until the date that significant influence ceases. When an associate incurs changes in its equity not derived from profit or loss and other comprehensive income, the Company recognizes all the equity changes in proportion to its ownership interest in the associate as capital surplus provided that the ownership interest in the associate remains unchanged.
 
The Company discontinues the use of the equity method from the date when the Company ceases to have significant influence over an associate, and then measures the retained interests at fair value at that date. The difference between the carrying amount of the investment at the date the equity method was discontinued and the fair value of the retained interests along with any proceeds from disposing of a part interest in the associate is recognized in profit or loss. Moreover, the Company accounts for all amounts previously recognized in other comprehensive income in relation to that investment on the same basis as would be required if the associate had directly disposed of the related assets or liabilities.
 
If the Company’s ownership interest in an associate is reduced, but the Company continues to apply the equity method, the Company shall reclassify to profit or loss the proportion of the gain or loss that had previously been recognized in other comprehensive income relating to that reduction in ownership interest on the same basis as mentioned above.
 
If an investment in an associate becomes an investment in a joint venture or an investment in a joint venture becomes an investment in an associate, the Company continues to account for the investment using equity method and does not remeasure the interest previously held.
 
When the Company subscribes for additional shares in an associate at a percentage different from its existing ownership percentage, the resulting carrying amount of the investment differs from the amount of the Company’s proportionate interest in the net assets of the associate. The Company records such a difference as an adjustment to investments with the corresponding amount charged or credited to capital surplus. If the capital surplus arising from investment accounted for under the equity method in associates is insufficient to offset with the said corresponding amount, the differences will be charged or credited to retained earnings. If the Company’s ownership interest is reduced due to circumstances as mentioned above, but the Company continues to apply the equity method, the Company shall reclassify to profit or loss the proportion of the gain or loss that had previously been recognized in other comprehensive income relating to that reduction in ownership interest if that gain or loss would be required to be reclassified to profit or loss on the disposal of the related assets or liabilities.
 
At the end of each reporting period, if there is any indication of impairment, the entire carrying amount of the investment including goodwill is tested for impairment as a single asset, by comparing its recoverable amount with its carrying amount. An impairment loss recognized forms part of the carrying amount of the investment in associates. Accordingly, any reversal of that impairment loss is recognized to the extent that the recoverable amount of the investment subsequently increases.
 
Unrealized profits resulting from the transactions between the Company and associates are eliminated to the extent of the Company’s interest in the associate. Unrealized losses on transactions with associates are eliminated in the same way, except to the extent that the underlying asset is impaired.
 
When the Company’s share of losses exceeds its interest in an associate, the carrying amount of that interest, including any long-term investments that form part thereof, is reduced to zero, and the recognition of further losses is discontinued except to the extent that the Company has a legal or contractual obligation, or has made payments on behalf of the investee.
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for investment property [text block]
(l)
Investment property
 
Investment property is the property held either to earn rental income or for capital appreciation or for both, but not for sale in the ordinary course of business, use in the production or supply of goods or services or for administrative purposes. Investment property is measured at cost on initial recognition. Subsequent to initial recognition, investment properties are measured at original acquisition cost less any subsequent accumulated depreciation. Depreciation methods, useful lives and residual values are in accordance with the policy of property, plant and equipment. Cost includes expenditure that is directly attributable to the acquisition of the investment property.
 
An investment property is reclassified to property, plant and equipment at its carrying amount when the use of the investment property changes.
130001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for investments in joint ventures [text block]
(k)
Investments in joint ventures
 
Joint venture is a joint arrangement whereby the Company and other parties agreed to share the control of the arrangement, and have rights to the net assets of the arrangement. Unanimous consent from the parties sharing control is required when making decisions for the relevant activities of the arrangement. Investments in joint venture are accounted for in the Company’s consolidated financial statements under the equity method which is consistent with the accounting policy for investments in associates.
140001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for leases [text block]
(o)
Leases
 
(1)
Lessor
 
Lease income from an operating lease is recognized in profit or loss on a straight-line basis over the lease term. Initial direct costs incurred in negotiating and arranging an operating lease are added to the carrying amount of the leased asset and recognized as an expense on a straight-line basis over the lease term.
 
(2)
Lessee
 
Payments made under operating lease (excluding insurance and maintenance expenses) are recognized in profit or loss on a straight-line basis over the term of the lease.
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for measuring inventories [text block]
(h)
Inventories
 
The cost of inventories includes all necessary expenditures and charges for bringing the inventory to a stable, useable and marketable condition and location. Inventories are recorded at cost, and cost is determined using the weighted-average method. The production overhead is allocated based on the normal capacity of the production facilities. Inventories are measured at the lower of cost or net realizable value. Net realizable value for raw materials is based on replacement cost. Net realizable value for finished goods and work in process is calculated based on the estimated selling price less all estimated costs of completion and necessary selling costs.
160001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for non-current assets or disposal groups classified as held for sale [text block]
(i)
Noncurrent assets held for sale
 
Noncurrent assets are classified as held for sale when their carrying amounts are expected to be recovered primarily through sale rather than through continuing use. Such noncurrent assets must be available for immediate sale in their present condition and the sale is highly probable within one year. When classified as held for sale, the assets are measured at the lower of their carrying amount and fair value less costs to sell. Impairment losses on initial classification as held for sale and subsequent gains or losses on re-measurement are recognized in profit or loss. However, subsequent gains are not recognized in excess of the cumulative impairment loss that has been recognized.
 
When intangible assets and property, plant and equipment are classified as held for sale, they are no longer amortized or depreciated. In addition, once an equity-accounted investee is classified as held for sale, it is no longer equity accounted.
170001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for property, plant and equipment [text block]
(m)
Property, plant and equipment
 
(1)
Recognition and measurement
 
Items of property, plant and equipment are measured at cost less accumulated depreciation and accumulated impairment losses. Cost includes expenditure that is directly attributed to the acquisition of the asset, any cost directly attributable to bringing the asset to the location and condition necessary for it to be capable of operating in the manner intended by management, the initial estimate of the costs of dismantling and removing the item and restoring the site on which it is located, and any borrowing cost that is eligible for capitalization. The cost of the software is capitalized as part of the equipment if the purchase of the software is necessary for the equipment to be capable of operating.
 
When part of an item of property, plant and equipment with a cost that is significant in relation to the total cost of the item and the useful life or the depreciation method of the significant part is different from another significant part of that same item, it is accounted for as a separate item (significant component) of property, plant and equipment.
 
The gain or loss arising from the derecognition of an item of property, plant and equipment is determined as the difference between the net disposal proceeds, if any, and the carrying amount of the item, and is recognized in profit or loss.
 
(2)
Subsequent costs
 
Subsequent expenditure is capitalized only when it is probable that the future economic benefits associated with the expenditure will flow to the Company and the cost of the item can be measured reliably. The carrying amount of those parts that are replaced is derecognized to profit or loss. Ongoing repairs and maintenance expenses are recognized in profit or loss as incurred.
 
(3)
Depreciation
 
Excluding land, depreciation is recognized in profit or loss and provided over the estimated useful lives of the respective assets, considering significant components of an individual asset, on a straight-line basis less any residual value. If a component has a useful life that is different from the remainder of that asset, that component is depreciated separately.
 
Leased assets are depreciated over the shorter of the lease term and their useful lives unless it is reasonably certain that the Company will obtain ownership by the end of the lease term.
 
The estimated useful lives of the assets, except for land are as follows:
 
(i)
Buildings: 20~50 years
 
(ii)
Machinery and equipment: 3~10 years
 
(iii)
Other equipment: 3~6 years
 
Depreciation methods, useful lives, and residual values are reviewed at each annual reporting date and, if necessary, adjusted as appropriate. Any changes therein are accounted for as changes in accounting estimates.
 
(4)
Reclassification to investment property
 
A property is reclassified to investment property at its carrying amount when the use of the property changes from owner-occupied to investment purpose.
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for provisions [text block]
(r)
Provisions
 
A provision is recognized for a legal or constructive obligation arising from a past event, if there is probable outflow of resources and the amount can be estimated reliably. Provisions are determined by discounting the expected future cash flows at a pre-tax rate that reflects the current market assessments of the time value of money and the risks specific to the liability. The unwinding of the discount is recognized as interest expense.
 
(1)
Warranties
 
A provision for warranties is recognized when the underlying products or services are sold. The provision is weighting factors based on historical experience of warranty claims rate and other possible outcomes against their associated probabilities.
 
(2)
Decommissioning obligation
 
The Company is subject to decommissioning obligations related to certain items of property, plant and equipment. Such decommissioning obligations are primarily attributable to clean-up costs, including deconstruction, transportation, and recover costs. The unwinding of the discount based on original discount rate is recognized in profit or loss as interest expense over the periods with corresponding increase in the carrying amounts of the accrued decommissioning costs. The carrying amount of the accruals at the end of the assets’ useful lives is the same as the estimated decommissioning costs.
 
(3)
Onerous contracts
 
A provision for onerous contracts is recognized when the expected benefits to be derived by the Company from a contract are lower than the unavoidable cost of meeting its obligations under the contract. The provision is measured at the present value of the lower of the expected cost of terminating the contract and the expected net cost of continuing with the contract. Before a provision is established, the Company recognizes any impairment loss on the assets associated with that contract.
 
(4)
Loss contingencies
 
Provision for loss contingencies arising from claims, assessments, litigation, fines, and penalties and other sources are recognized when it is probable the present obligation as a result of a past event will result in an outflow of resources and the amount can be reasonably estimated. Legal costs incurred in connection with loss contingencies are expensed as incurred. Management periodically assesses the obligation of all litigation and claims and relative legal costs. Such provisions are adjusted as further information becomes known or circumstances change.
 
Provisions recognized are the best estimates of the consideration for settling the present obligation at each reporting date.
190001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for recognition of revenue [text block]
(s)
Revenue recognition
 
(1)
Goods sold
 
Revenue from the sale of goods in the course of ordinary activities is measured at the fair value of the consideration received or receivable, net of returns, trade discounts and volume rebates. Revenue is recognized when the significant risks and rewards of ownership have been transferred to the customer, recovery of the consideration is probable, the associated costs and possible return of goods can be estimated reliably, there is no continuing management involvement with the goods, and the amount of revenue can be measured reliably. If it is probable that discounts will be granted and the amount can be measured reliably, then the discount is recognized as a reduction of revenue as the sales are recognized.
 
The timing of the transfers of risks and rewards varies depending on the individual terms of the sales agreement.
 
(2)
Government grants
 
Grants that compensate the Company for research and development expenses incurred are recognized as other income in profit or loss on a systematic basis in the periods in which the expenses are recognized. Other grants from government that becomes receivable as compensation for expenses or losses already incurred or for the purpose of giving immediate financial support to the Company with no future related costs are recognized in profit or loss of the period in which it becomes receivable.  
200001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for segment reporting [text block]
(y)
Operating segments
 
An operating segment is a component of an entity: (1) that engages in business activities from which it may earn revenue and incur expenses (including revenues and expenses relating to transactions with other components of the same entity), (2) whose operating results are reviewed regularly by the entity’s chief operating decision maker (“CODM”) to make decisions pertaining to the allocation of resources to the segment and to assess its performance, and (3) for which discrete financial information is available. Management has determined that the Company has two operating segments: display and solar.
 
The accounting policies for the operating segments are the same as those used in the preparation of the consolidated financial statements of the Company. Segment profit (loss) is determined by deducting selling, administrative and research and development expenses from gross profit. Segment profit (loss) excludes long-lived asset impairments, gains and losses on disposal of assets, litigation provisions, foreign currency exchange gains or losses, finance cost, income taxes, share of profit (loss) from equity-accounted investees, and other miscellaneous income and expenses. The CODM does not receive asset and liability information by operating segment. Consequently, no operating segment asset and liability information is disclosed. Geographic net revenue information is based upon the location of customers placing orders.
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for share-based payment transactions [text block]
(u)
Share-based payment arrangements
 
The compensation cost of employee share-based payment arrangements is measured based on the fair value at the date on which they are granted. The compensation cost is recognized, together with a corresponding increase in equity, over the periods in which the performance and/or service conditions are being fulfilled. The cumulative expense recognized for share-based payment arrangements at each reporting date reflects the extent to which the vesting period has passed and the Company’s estimate of the quantity of equity instruments that will ultimately vest.
 
For share-based payment awards with non-vesting conditions, the grant-date fair value of the share-based payment is measured to reflect such conditions, and there is no true-up for differences between expected and actual outcomes.
220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDescription of accounting policy for determining components of cash and cash equivalents [text block]
(f)
Cash and cash equivalents
 
Cash comprise cash balances and demand deposits. Cash equivalents comprise short-term highly liquid investments that are readily convertible into known amounts of cash and are subject to an insignificant risk of changes in their fair value. Deposits with short-term maturity but not for investments and other purposes and are qualified with the aforementioned criteria are classified as cash equivalent.
230001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of basis of consolidation [text block]
(c)
Basis of consolidation
 
(1)
Principle of preparation of the consolidated financial statements
 
The Company includes in its consolidated financial statements the results of operations of all controlled entities in which the Company is exposed to, or has rights to, variable returns from its involvement with the entity and has the ability to affect those returns through its power over the entity. All significant inter-company transactions, income and expenses are eliminated in the consolidated financial statements.
 
The financial statements of subsidiaries are included in the consolidated financial statements from the date that control commences until the date that control ceases. Total comprehensive income (loss) in a subsidiary is allocated to the shareholders of AUO and the non-controlling interests even if this results in the non-controlling interests having a deficit balance.
 
Subsidiaries’ financial statements are adjusted to align the accounting policies with those of the Company.
 
Changes in the Company’s ownership interests in a subsidiary that do not result in a loss of control are accounted for as equity transactions. The carrying amounts of the Company’s investment and non-controlling interests are adjusted to reflect the changes in their relative interests in the subsidiary. Any difference between such adjustment and the fair value of the consideration paid or received is recognized directly in equity and attributed to shareholders of AUO.
 
Upon the loss of control, the Company derecognizes the carrying amounts of the assets and liabilities of the subsidiary and non-controlling interests. Any interest retained in the former subsidiary is measured at fair value when control is lost. Any surplus or deficit arising from the loss of control is recognized in profit or loss. The gain or loss is measured as the difference between:
 
(i)
The aggregate of:
 
a.
the fair value of the consideration received, and
 
b.
the fair value of any retained non-controlling investment in the former subsidiary at the date when the Company losses control.
 
(ii)
The aggregate of the carrying amount of the former subsidiary’s assets (including goodwill), liabilities and non-controlling interests at the date when the Company losses control.
 
The Company accounts for all amounts previously recognized in other comprehensive income in relation to that subsidiary on the same basis as would be required if the Company had directly disposed of the related assets or liabilities.
 
(2)
List of subsidiaries in the consolidated financial statements
 
The consolidated entities were as follows:
 
 
 
 
 
 
 
Percentage of Ownership (%)
 
Name of Investor
 
Name of Subsidiary
 
Main Activities and Location
 
December 31, 2017
 
December 31, 2016
 
AUO
 
AU Optronics (L) Corp. (AULB)
 
Holding and trading company (Malaysia)
 
 
100.00
 
 
100.00
 
AUO
 
Konly Venture Corp. (Konly)
 
Venture capital investment (Taiwan ROC)
 
 
100.00
 
 
100.00
 
AUO
 
Ronly Venture Corp. (Ronly)
 
Venture capital investment (Taiwan ROC)
 
 
100.00
 
 
100.00
 
AUO
 
Space Money Inc. (SMI)
 
Sale of TFT-LCD panels; leasing (Taiwan ROC)
 
 
100.00
 
 
100.00
 
AUO
 
U-Fresh Technology Inc. (UTI)
 
Planning, design and development of construction for environmental protection and related project management (Taiwan ROC)
 
 
100.00(1)
 
 
-
 
     
 
 
 
 
 
 
Percentage of Ownership (%)
 
Name of Investor
 
Name of Subsidiary
 
Main Activities and Location
 
December 31, 2017
 
December 31, 2016
 
AUO, Konly and Ronly
 
Darwin Precisions Corporation (DPTW)
 
Manufacturing, design and sale of TFT-LCD modules, TV set, backlight modules and related parts (Taiwan ROC)
 
 
41.05(2)
 
 
51.04
 
AUO, Konly and Ronly
 
Sanda Materials Corporation (SDMC)
 
Holding company (Taiwan ROC)
 
 
99.99
 
 
99.99
 
AUO, Konly and Ronly
 
AUO Crystal Corp. (ACTW)
 
Manufacturing and sale of ingots and solar wafers (Taiwan ROC)
 
 
96.03
 
 
96.31
 
Konly
 
Fargen Power Corporation (FGPC)
 
Renewable energy power generation (Taiwan ROC)
 
 
-(3)
 
 
100.00
 
Konly
 
LiGen Power Corporation (LGPC)
 
Renewable energy power generation (Taiwan ROC)
 
 
100.00
 
 
100.00
 
Konly
 
TronGen Power Corporation (TGPC)
 
Renewable energy power generation (Taiwan ROC)
 
 
-(3)
 
 
100.00(1)
 
Konly
 
ChampionGen Power Corporation (CGPC)
 
Renewable energy power generation (Taiwan ROC)
 
 
100.00(1)
 
 
-
 
ACTW
 
AUO Crystal (Malaysia) Sdn. Bhd. (ACMK)
 
Manufacturing and sale of solar wafers (Malaysia)
 
 
100.00
 
 
100.00
 
SDMC
 
M.Setek Co., Ltd. (M.Setek)
 
Manufacturing and sale of ingots (Japan)
 
 
99.9991
 
 
99.9991
 
AULB
 
AU Optronics Corporation America (AUUS)
 
Sales and sales support of
TFT-LCD panels (United States)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Corporation Japan (AUJP)
 
Sales support of TFT-LCD panels (Japan)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Europe B.V. (AUNL)
 
Sales support of TFT-LCD panels (Netherlands)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Korea Ltd. (AUKR)
 
Sales support of TFT-LCD panels (South Korea)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Singapore Pte. Ltd. (AUSG)
 
Holding company and sales support of TFT-LCD panels (Singapore)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Czech) s.r.o. (AUCZ)
 
Assembly of solar modules (Czech Republic)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Shanghai) Co., Ltd. (AUSH)
 
Sales support of TFT-LCD panels (PRC)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Xiamen) Corp. (AUXM)
 
Manufacturing and assembly of TFT-LCD modules (PRC)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Suzhou) Corp., Ltd. (AUSZ)
 
Manufacturing and assembly of TFT-LCD modules (PRC)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Manufacturing (Shanghai) Corp. (AUSJ)
 
Manufacturing and assembly of TFT-LCD modules (PRC)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Slovakia) s.r.o. (AUSK)
 
Repairing of TFT-LCD modules; injecting and stamping parts; manufacturing and sale of mold (Slovakia Republic)
 
 
100.00
 
 
100.00
 
 
 
 
 
 
 
 
Percentage of Ownership (%)
 
Name of Investor
 
Name of Subsidiary
 
Main Activities and Location
 
December 31, 2017
 
December 31, 2016
 
AULB
 
AFPD Pte., Ltd. (AUST)
 
Manufacturing TFT-LCD panels based on low temperature polysilicon technology (Singapore)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Kunshan) Co., Ltd. (AUKS)
 
Manufacturing and sale of
TFT-LCD panels (PRC)
 
 
51.00
 
 
51.00
 
AULB
 
a.u. Vista Inc. (AUVI)
 
Research and development and IP related business (United States)
 
 
100.00
 
 
100.00
 
AULB and DPTW
 
BriView (L) Corp. (BVLB)
 
Holding company (Malaysia)
 
 
100.00
 
 
100.00
 
AUSG
 
AUO Energy (Tianjin) Corp. (AETJ)
 
Manufacturing and sale of solar modules (PRC)
 
 
100.00
 
 
100.00
 
AUSG
 
AUO Green Energy America Corp. (AEUS)
 
Sale and sales support of solar-related products (United States)
 
 
100.00
 
 
100.00
 
AUSG
 
AUO Green Energy Europe B.V. (AENL)
 
Sales support of solar-related products(Netherlands)
 
 
100.00
 
 
100.00
 
AUXM
 
BriView (Xiamen) Corp. (BVXM)
 
Manufacturing and sale of liquid crystal products and related parts (PRC)
 
 
100.00
 
 
100.00(4)
 
AUSH
 
AUO Care Management (Suzhou)
Co., Ltd. (A-Care)
 
Design, development and sales of software and hardware for health care industry (PRC)
 
 
100.00(1)
 
 
-
 
DPTW
 
Darwin Precisions (L) Corp. (DPLB)
 
Holding company (Malaysia)
 
 
100.00
 
 
100.00
 
DPTW
 
Forhouse International Holding Ltd. (FHVI)
 
Holding company (BVI)
 
 
100.00
 
 
100.00
 
DPTW
 
Force International Holding Ltd. (FRVI)
 
Holding company (BVI)
 
 
100.00
 
 
100.00
 
FHVI
 
Fortech International Corp. (FTMI)
 
Holding company (Mauritius)
 
 
100.00
 
 
100.00
 
FHVI
 
Forward Optronics International Corp. (FWSA)
 
Holding company (Samoa)
 
 
100.00
 
 
100.00
 
FHVI
 
Prime Forward International Ltd. (PMSA)
 
Holding company (Samoa)
 
 
100.00
 
 
100.00
 
FHVI
 
Full Luck Precisions Co., Ltd. (FLMI)
 
Holding company (Mauritius)
 
 
100.00
 
 
100.00
 
FRVI
 
Forefront Corporation (FFMI)
 
Holding company (Mauritius)
 
 
100.00
 
 
100.00
 
FFMI
 
Forthouse Electronics (Suzhou) Co., Ltd. (FHWJ)
 
Manufacturing of motorized treadmills (PRC)
 
 
100.00
 
 
100.00
 
FTMI
 
Fortech Electronics (Suzhou) Co., Ltd. (FTWJ)
 
Manufacturing and sale of light guide plates, backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
FTMI
 
FORTECH OPTRONICS (XIAMEN) CO., LTD. (FTXM)(5)
 
Manufacturing and sale of light guide plates, backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
     
 
 
 
 
 
 
Percentage of Ownership (%)
 
Name of Investor
 
Name of Subsidiary
 
Main Activities and Location
 
December 31, 2017
 
December 31, 2016
 
FWSA and FTMI
 
Suzhou Forplax Optronics Co., Ltd. (FPWJ)
 
Manufacturing and sale of precision plastic parts (PRC)
 
 
100.00
 
 
100.00
 
PMSA
 
Fortech Electronics (Kunshan) Co., Ltd. (FTKS)
 
Manufacturing and sale of light guide plates, backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
FLMI
 
Full Luck (Wujiang) Precisions Co., Ltd. (FLWJ)(5)
 
Manufacturing and sales of precision metal parts (PRC)
 
 
100.00
 
 
100.00
 
DPLB
 
Darwin Precisions (Hong Kong) Limited (DPHK)
 
Holding company (Hong Kong)
 
 
100.00
 
 
100.00
 
DPLB
 
Darwin Precisions (Slovakia) s.r.o. (DPSK)
 
Manufacturing, assembly and sale of automotive parts (Slovakia Republic)
 
 
100.00
 
 
100.00(1)
 
DPHK
 
Darwin Precisions (Suzhou) Corp. (DPSZ)
 
Manufacturing and sale of backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
DPHK
 
Darwin Precisions (Xiamen) Corp. (DPXM)
 
Manufacturing and sale of backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
DPHK
 
Darwin Precisions (Chengdu) Corp. (DPCD)(5)
 
Manufacturing and sale of backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
BVLB
 
BriView (Hefei) Co., Ltd. (BVHF)
 
Manufacturing and sale of liquid crystal products and related parts (PRC)
 
 
100.00
 
 
100.00
 
 
 
Note 1:
TGPC was incorporated in April 2016. DPSK was incorporated in May 2016. UTI was incorporated in January 2017. CGPC was incorporated in May 2017. A-Care was incorporated in September 2017.
 
 
 
 
Note 2:
As at December 31, 2017, although the Company did not own more than 50% of the DPTW’s ownership interests, it was considered to have de facto control over the operating policies of DPTW. As a result, DPTW was accounted for as a subsidiary of the Company. Please refer to note 13 for further details.
 
 
 
 
Note 3:
The Company disposed all its shareholdings in FGPC and TGPC to Star Shining Energy Corporation (“SSEC”), an associate of the Company, in December 2017. Please refer to note 14 for further details.
 
 
 
 
Note 4:
As part of a business restructuring, BVLB disposed all its shareholdings in wholly owned subsidiary, BVXM, to AUXM in March 2016. This transaction has no net effect on the Company’s consolidated financial statements as there was no change in control of BVXM by the Company.
 
 
 
 
Note 5:
DPCD, FLWJ and FTXM have been resolved by their respective boards of directors for liquidation. The liquidation is still in process for these entities as of December 31, 2017.
240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of basis of preparation of financial statements [text block]
(b)
Basis of preparation
 
(1)
Basis of measurement
 
The consolidated financial statements have been prepared on the historical cost basis except for the following material items in the consolidated statements of financial position:
 
(i)
Financial instruments measured at fair value through profit or loss (including derivative financial instruments) (note 7);
 
(ii)
Hedging derivative financial instruments measured at fair value (note 7);
 
(iii)
Available-for-sale financial assets measured at fair value (note 8); and
 
(iv)
Defined benefit asset (liability) is recognized as the fair value of the plan assets less the present value of the defined benefit obligation (note 24).
 
(2)
Functional and presentation currency
 
The functional currency of each individual consolidated entity is determined based on the primary economic environment in which the entity operates. The Company’s consolidated financial statements are presented in New Taiwan Dollar (“NTD”), which is also AUO’s functional currency.
 
All financial information presented in NTD has been rounded to the nearest thousand, unless otherwise noted.
250001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullStatement of IFRS compliance [text block]
(a)
Statement of compliance
 
The consolidated financial statements have been prepared in accordance with IFRS as issued by the IASB.

Fact Table
Network
150 - Disclosure - Summary of Significant Accounting Policies (Tables)
(http://auo.com/role/SummaryOfSignificantAccountingPoliciesTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisclosureOfDetailedInformationAboutSubsidiariesInConsolidatedFinancialStatementsTextBlock (label)
The consolidated entities were as follows:
 
 
 
 
 
 
 
Percentage of Ownership (%)
 
Name of Investor
 
Name of Subsidiary
 
Main Activities and Location
 
December 31, 2017
 
December 31, 2016
 
AUO
 
AU Optronics (L) Corp. (AULB)
 
Holding and trading company (Malaysia)
 
 
100.00
 
 
100.00
 
AUO
 
Konly Venture Corp. (Konly)
 
Venture capital investment (Taiwan ROC)
 
 
100.00
 
 
100.00
 
AUO
 
Ronly Venture Corp. (Ronly)
 
Venture capital investment (Taiwan ROC)
 
 
100.00
 
 
100.00
 
AUO
 
Space Money Inc. (SMI)
 
Sale of TFT-LCD panels; leasing (Taiwan ROC)
 
 
100.00
 
 
100.00
 
AUO
 
U-Fresh Technology Inc. (UTI)
 
Planning, design and development of construction for environmental protection and related project management (Taiwan ROC)
 
 
100.00(1)
 
 
-
 
     
 
 
 
 
 
 
Percentage of Ownership (%)
 
Name of Investor
 
Name of Subsidiary
 
Main Activities and Location
 
December 31, 2017
 
December 31, 2016
 
AUO, Konly and Ronly
 
Darwin Precisions Corporation (DPTW)
 
Manufacturing, design and sale of TFT-LCD modules, TV set, backlight modules and related parts (Taiwan ROC)
 
 
41.05(2)
 
 
51.04
 
AUO, Konly and Ronly
 
Sanda Materials Corporation (SDMC)
 
Holding company (Taiwan ROC)
 
 
99.99
 
 
99.99
 
AUO, Konly and Ronly
 
AUO Crystal Corp. (ACTW)
 
Manufacturing and sale of ingots and solar wafers (Taiwan ROC)
 
 
96.03
 
 
96.31
 
Konly
 
Fargen Power Corporation (FGPC)
 
Renewable energy power generation (Taiwan ROC)
 
 
-(3)
 
 
100.00
 
Konly
 
LiGen Power Corporation (LGPC)
 
Renewable energy power generation (Taiwan ROC)
 
 
100.00
 
 
100.00
 
Konly
 
TronGen Power Corporation (TGPC)
 
Renewable energy power generation (Taiwan ROC)
 
 
-(3)
 
 
100.00(1)
 
Konly
 
ChampionGen Power Corporation (CGPC)
 
Renewable energy power generation (Taiwan ROC)
 
 
100.00(1)
 
 
-
 
ACTW
 
AUO Crystal (Malaysia) Sdn. Bhd. (ACMK)
 
Manufacturing and sale of solar wafers (Malaysia)
 
 
100.00
 
 
100.00
 
SDMC
 
M.Setek Co., Ltd. (M.Setek)
 
Manufacturing and sale of ingots (Japan)
 
 
99.9991
 
 
99.9991
 
AULB
 
AU Optronics Corporation America (AUUS)
 
Sales and sales support of
TFT-LCD panels (United States)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Corporation Japan (AUJP)
 
Sales support of TFT-LCD panels (Japan)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Europe B.V. (AUNL)
 
Sales support of TFT-LCD panels (Netherlands)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Korea Ltd. (AUKR)
 
Sales support of TFT-LCD panels (South Korea)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Singapore Pte. Ltd. (AUSG)
 
Holding company and sales support of TFT-LCD panels (Singapore)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Czech) s.r.o. (AUCZ)
 
Assembly of solar modules (Czech Republic)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Shanghai) Co., Ltd. (AUSH)
 
Sales support of TFT-LCD panels (PRC)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Xiamen) Corp. (AUXM)
 
Manufacturing and assembly of TFT-LCD modules (PRC)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Suzhou) Corp., Ltd. (AUSZ)
 
Manufacturing and assembly of TFT-LCD modules (PRC)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics Manufacturing (Shanghai) Corp. (AUSJ)
 
Manufacturing and assembly of TFT-LCD modules (PRC)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Slovakia) s.r.o. (AUSK)
 
Repairing of TFT-LCD modules; injecting and stamping parts; manufacturing and sale of mold (Slovakia Republic)
 
 
100.00
 
 
100.00
 
 
 
 
 
 
 
 
Percentage of Ownership (%)
 
Name of Investor
 
Name of Subsidiary
 
Main Activities and Location
 
December 31, 2017
 
December 31, 2016
 
AULB
 
AFPD Pte., Ltd. (AUST)
 
Manufacturing TFT-LCD panels based on low temperature polysilicon technology (Singapore)
 
 
100.00
 
 
100.00
 
AULB
 
AU Optronics (Kunshan) Co., Ltd. (AUKS)
 
Manufacturing and sale of
TFT-LCD panels (PRC)
 
 
51.00
 
 
51.00
 
AULB
 
a.u. Vista Inc. (AUVI)
 
Research and development and IP related business (United States)
 
 
100.00
 
 
100.00
 
AULB and DPTW
 
BriView (L) Corp. (BVLB)
 
Holding company (Malaysia)
 
 
100.00
 
 
100.00
 
AUSG
 
AUO Energy (Tianjin) Corp. (AETJ)
 
Manufacturing and sale of solar modules (PRC)
 
 
100.00
 
 
100.00
 
AUSG
 
AUO Green Energy America Corp. (AEUS)
 
Sale and sales support of solar-related products (United States)
 
 
100.00
 
 
100.00
 
AUSG
 
AUO Green Energy Europe B.V. (AENL)
 
Sales support of solar-related products(Netherlands)
 
 
100.00
 
 
100.00
 
AUXM
 
BriView (Xiamen) Corp. (BVXM)
 
Manufacturing and sale of liquid crystal products and related parts (PRC)
 
 
100.00
 
 
100.00(4)
 
AUSH
 
AUO Care Management (Suzhou)
Co., Ltd. (A-Care)
 
Design, development and sales of software and hardware for health care industry (PRC)
 
 
100.00(1)
 
 
-
 
DPTW
 
Darwin Precisions (L) Corp. (DPLB)
 
Holding company (Malaysia)
 
 
100.00
 
 
100.00
 
DPTW
 
Forhouse International Holding Ltd. (FHVI)
 
Holding company (BVI)
 
 
100.00
 
 
100.00
 
DPTW
 
Force International Holding Ltd. (FRVI)
 
Holding company (BVI)
 
 
100.00
 
 
100.00
 
FHVI
 
Fortech International Corp. (FTMI)
 
Holding company (Mauritius)
 
 
100.00
 
 
100.00
 
FHVI
 
Forward Optronics International Corp. (FWSA)
 
Holding company (Samoa)
 
 
100.00
 
 
100.00
 
FHVI
 
Prime Forward International Ltd. (PMSA)
 
Holding company (Samoa)
 
 
100.00
 
 
100.00
 
FHVI
 
Full Luck Precisions Co., Ltd. (FLMI)
 
Holding company (Mauritius)
 
 
100.00
 
 
100.00
 
FRVI
 
Forefront Corporation (FFMI)
 
Holding company (Mauritius)
 
 
100.00
 
 
100.00
 
FFMI
 
Forthouse Electronics (Suzhou) Co., Ltd. (FHWJ)
 
Manufacturing of motorized treadmills (PRC)
 
 
100.00
 
 
100.00
 
FTMI
 
Fortech Electronics (Suzhou) Co., Ltd. (FTWJ)
 
Manufacturing and sale of light guide plates, backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
FTMI
 
FORTECH OPTRONICS (XIAMEN) CO., LTD. (FTXM)(5)
 
Manufacturing and sale of light guide plates, backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
     
 
 
 
 
 
 
Percentage of Ownership (%)
 
Name of Investor
 
Name of Subsidiary
 
Main Activities and Location
 
December 31, 2017
 
December 31, 2016
 
FWSA and FTMI
 
Suzhou Forplax Optronics Co., Ltd. (FPWJ)
 
Manufacturing and sale of precision plastic parts (PRC)
 
 
100.00
 
 
100.00
 
PMSA
 
Fortech Electronics (Kunshan) Co., Ltd. (FTKS)
 
Manufacturing and sale of light guide plates, backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
FLMI
 
Full Luck (Wujiang) Precisions Co., Ltd. (FLWJ)(5)
 
Manufacturing and sales of precision metal parts (PRC)
 
 
100.00
 
 
100.00
 
DPLB
 
Darwin Precisions (Hong Kong) Limited (DPHK)
 
Holding company (Hong Kong)
 
 
100.00
 
 
100.00
 
DPLB
 
Darwin Precisions (Slovakia) s.r.o. (DPSK)
 
Manufacturing, assembly and sale of automotive parts (Slovakia Republic)
 
 
100.00
 
 
100.00(1)
 
DPHK
 
Darwin Precisions (Suzhou) Corp. (DPSZ)
 
Manufacturing and sale of backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
DPHK
 
Darwin Precisions (Xiamen) Corp. (DPXM)
 
Manufacturing and sale of backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
DPHK
 
Darwin Precisions (Chengdu) Corp. (DPCD)(5)
 
Manufacturing and sale of backlight modules and related parts (PRC)
 
 
100.00
 
 
100.00
 
BVLB
 
BriView (Hefei) Co., Ltd. (BVHF)
 
Manufacturing and sale of liquid crystal products and related parts (PRC)
 
 
100.00
 
 
100.00
 
 
 
Note 1:
TGPC was incorporated in April 2016. DPSK was incorporated in May 2016. UTI was incorporated in January 2017. CGPC was incorporated in May 2017. A-Care was incorporated in September 2017.
 
 
 
 
Note 2:
As at December 31, 2017, although the Company did not own more than 50% of the DPTW’s ownership interests, it was considered to have de facto control over the operating policies of DPTW. As a result, DPTW was accounted for as a subsidiary of the Company. Please refer to note 13 for further details.
 
 
 
 
Note 3:
The Company disposed all its shareholdings in FGPC and TGPC to Star Shining Energy Corporation (“SSEC”), an associate of the Company, in December 2017. Please refer to note 14 for further details.
 
 
 
 
Note 4:
As part of a business restructuring, BVLB disposed all its shareholdings in wholly owned subsidiary, BVXM, to AUXM in March 2016. This transaction has no net effect on the Company’s consolidated financial statements as there was no change in control of BVXM by the Company.
 
 
 
 
Note 5:
DPCD, FLWJ and FTXM have been resolved by their respective boards of directors for liquidation. The liquidation is still in process for these entities as of December 31, 2017.

Fact Table
Network
151 - Disclosure - Cash and Cash Equivalents (Tables)
(http://auo.com/role/CashAndCashEquivalentsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfCashAndBankBalancesAtCentralBanksExplanatory (label)
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Cash on hand, demand deposits and checking accounts
 
$
40,871,878
 
 
42,389,461
 
Time deposits
 
 
57,438,459
 
 
37,676,746
 
Government bonds with reverse repurchase agreements
 
 
6,710,279
 
 
125,041
 
 
 
$
105,020,616
 
 
80,191,248
 

Fact Table
Network
152 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Tables)
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstrumentsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfForeignCurrencyForwardContractsTextBlock (label)
As of December 31, 2017 and 2016, outstanding foreign currency forward contracts were as follows:
 
December 31, 2017
Contract item
 
Maturity date
 
Contract amount
 
 
 
 
(in thousands)
Sell USD / Buy NTD
 
Jan. 2018 – Feb. 2018
 
USD213,100 / NTD6,377,672
Sell USD / Buy JPY
 
Jan. 2018 – Jun. 2018
 
USD304,926 / JPY34,092,055
Sell USD / Buy CNY
 
Jan. 2018 – Apr. 2018
 
USD137,000 / CNY903,800
Sell EUR / Buy JPY
 
Jan. 2018 – Feb. 2018
 
EUR65,000 / JPY8,691,815
Sell EUR / Buy CZK
 
Jan. 2018 – Mar. 2018
 
EUR3,280 / CZK83,502
Sell USD / Buy MYR
 
Jan. 2018 – Mar. 2018
 
USD931 / MYR3,811
Sell JPY / Buy NTD
 
Jan. 2018
 
JPY10,000,000 / NTD2,654,220
Sell CNY / Buy JPY
 
Jan. 2018 –  Apr. 2018
 
CNY86,623 / JPY1,443,259
Sell USD / Buy SGD
 
Jan. 2018
 
USD5,480 / SGD7,366
 
 
 
 
 
 
December 31, 2016
Contract item
 
Maturity date
 
Contract amount
 
 
 
 
(in thousands)
Sell USD / Buy NTD
 
Jan. 2017 – Feb. 2017
 
USD711,000 / NTD22,687,304
Sell USD / Buy JPY
 
Jan. 2017 – Mar. 2017
 
USD126,730 / JPY13,860,716
Sell NTD / Buy JPY
 
Mar. 2017
 
NTD1,474,085 / JPY5,400,000
Sell USD / Buy CNY
 
Jan. 2017 – Jun. 2017
 
USD96,000 / CNY662,180
Sell EUR / Buy JPY
 
Mar. 2017
 
EUR90,000 / JPY10,693,738
Sell EUR / Buy CZK
 
Jan. 2017 –  Feb. 2017
 
EUR3,190 / CZK85,791
Sell EUR / Buy USD
 
Mar. 2017
 
EUR41,000 / USD44,148
Sell USD / Buy MYR
 
Jan. 2017 – Mar. 2017
 
USD741 / MYR3,296
Sell JPY / Buy NTD
 
Mar. 2017
 
JPY50,000 / NTD13,725
Sell CNY / Buy USD
 
Jan. 2017 – Apr. 2017
 
CNY359,763 / USD52,189
Sell EUR / Buy NTD
 
Jan. 2017
 
EUR5,000 / NTD171,967
Sell CNY / Buy JPY
 
Jan. 2017 –  Jul. 2017
 
CNY588,583 / JPY9,068,273
Sell USD / Buy SGD
 
Jan. 2017
 
USD170,157 / SGD245,680
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfGainOrLossOfForeignCurrencyForwardContractsTextBlock (label)
Net gains (losses) of foreign currency forward contracts were as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(in thousands)
 
Unrealized gains (losses)
 
$
795,098
 
 
(491,860)
 
 
(240,002)
 
Realized gains
 
 
850,936
 
 
80,423
 
 
1,179,119
 
 
 
$
1,646,034
 
 
(411,437)
 
 
939,117
 
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory (label)
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
 
 
 
 
 
 
 
 
(in thousands)
 
Financial assets measured at fair value through profit or loss – current:
 
 
 
 
 
 
 
Foreign currency forward contracts
 
$
70,366
 
 
65,669
 
 
 
 
 
 
 
 
 
Financial liabilities measured at fair value through profit or loss – current:
 
 
 
 
 
 
 
Foreign currency forward contracts
 
$
106,597
 
 
896,998
 
 
 
 
 
 
 
 
 
Hedging derivative financial liabilities – current:
 
 
 
 
 
 
 
Interest rate swap contracts
 
$
-
 
 
3,540
 
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of detailed information about hedging instruments [text block]
Details of hedged items designated as cash flow hedges and their respective hedging derivative financial instruments were as follows:
 
December 31, 2016
 
Hedged item
 
Hedging
instrument
 
Fair value
of hedging
instrument
 
Expected
period of
cash flows
 
Expected
period of
recognition in
comprehensive
income
 
 
 
 
 
(in thousands)
 
 
 
 
 
Long-term borrowings with floating interest rate
 
Interest rate swap contracts
 
$
(3,540)
 
Jan. 2017 – Aug. 2017
 
Jan. 2017 – Aug. 2017
 

Fact Table
Network
153 - Disclosure - Available-for-sale Financial Assets–noncurrent (Tables)
(http://auo.com/role/AvailableforsaleFinancialAssetsnoncurrentTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfAvailableforsaleFinancialAssetsTextBlock (label)
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
 
 
 
 
 
 
 
 
Equity securities
 
$
4,348,134
 
 
3,030,278
 

Fact Table
Network
154 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Tables)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfAllowanceForDoubtfulAccountsTextBlock (label)
The movement in the allowance for doubtful accounts was as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
Individually assessed for
impairment
 
Collectively assessed for
impairment
 
Individually assessed for
impairment
 
Collectively assessed for
impairment
 
Individually assessed for
impairment
 
Collectively assessed for
impairment
 
 
 
(in thousands)
 
Balance at beginning of the year
 
$
41,812
 
 
62,805
 
 
11,714
 
 
58,183
 
 
10,334
 
 
72,906
 
Provisions (reversals) charged to (against) expense
 
 
(28,236)
 
 
18,396
 
 
31,360
 
 
12,938
 
 
3,196
 
 
(14,864)
 
Write-offs
 
 
(6)
 
 
-
 
 
-
 
 
(7,385)
 
 
(1,814)
 
 
(383)
 
Effect of changes in foreign currency exchange rates
 
 
(805)
 
 
(913)
 
 
(1,262)
 
 
(931)
 
 
(2)
 
 
524
 
Balance at end of the year
 
$
12,765
 
 
80,288
 
 
41,812
 
 
62,805
 
 
11,714
 
 
58,183
 
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfTradeReceivablesFactoringTextBlock (label)
As of December 31, 2017 and 2016, the Company entered into financing facilities with banks to factor certain of its accounts receivable without recourse, details of which were as follows:
 
December 31, 2017
 
Underwriting bank
 
Factoring
limit
 
Amount
advanced
 
Amount
sold and derecognized
 
Principle
terms
 
 
 
 
 
 
(in thousands)
 
 
 
 
 
 
Chinatrust Commercial Bank
 
USD
200,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Taishin Bank
 
USD
80,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Bank of Taiwan
 
USD
250,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Taipei Fubon Bank
 
USD
120,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
E. Sun Bank
 
USD
50,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
DBS Bank
 
USD
154,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Taishin Bank
 
USD
35,000
 
 
-
 
USD
6,382
 
See notes(a)~(d) and (f)
 
 
December 31, 2016
 
Underwriting bank
 
Factoring
limit
 
Amount
advanced
 
Amount
sold and derecognized
 
Principle
terms
 
 
 
 
 
 
(in thousands)
 
 
 
 
 
 
Chinatrust Commercial Bank
 
USD
230,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Taishin Bank
 
USD
80,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Bank of Taiwan
 
USD
250,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Taipei Fubon Bank
 
USD
120,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
E. Sun Bank
 
USD
100,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
DBS Bank
 
USD
184,000
 
 
-
 
 
-
 
See notes(a)~(c) and (e)
 
Taishin Bank
 
USD
35,000
 
 
-
 
USD
8,780
 
See notes(a)~(d) and (f)
 
 
 
Note (a):
Under these facilities, the Company transferred accounts receivable to the respective underwriting banks, which are without recourse.
 
 
 
 
Note (b):
The Company informed its customers pursuant to the respective facilities to make payment directly to the respective underwriting banks.
 
 
 
 
Note (c):
As of December 31, 2017 and 2016, total outstanding receivables after the above assignment transactions, net of fees charged by underwriting banks, of $190,451 thousand and $283,694 thousand, respectively, were classified under other current financial assets.
 
 
 
 
Note (d):
To the extent of the amount transferred to the underwriting banks, risks of non-collection or potential payment default by customers in the event of insolvency are borne by respective banks. The Company is not responsible for the collection of receivables subject to these facilities, or for any legal proceedings and costs thereof in collecting these receivables.
 
 
Note (e):
To the extent of the amount transferred to the underwriting banks, risks of non-collection or potential payment default by customers in the event of insolvency are borne by respective banks. The Company is not responsible for the collection of receivables subject to these facilities, or for any legal proceedings and costs thereof in collecting these receivables. In case any commercial dispute between the Company and customers or other reasons results in the Company’s failure to perform the obligation under these facilities, the banks have requested the Company to issue promissory notes in the amounts equal to 10 percent of respective facilities or to transfer receivables in the amounts equal to 10 percent of respective facilities.  Other than such arrangements, no collaterals were provided by the Company.
 
 
 
 
Note (f):
The Company bears all risks deriving from the customers except credit risk.
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfTradeReceivablesTextBlock (label)
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
 
 
 
 
 
 
 
 
Accounts receivable
 
$
42,021,402
 
 
49,201,632
 
Less: allowance for doubtful accounts
 
 
(93,053)
 
 
(104,617)
 
allowance for sales returns and discounts
 
 
(1,337,076)
 
 
(853,614)
 
 
 
$
40,591,273
 
 
48,243,401
 
Accounts receivable, net
 
$
38,738,211
 
 
45,710,177
 
Accounts receivable from related parties, net
 
$
1,853,062
 
 
2,533,224
 
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullAnalysis of age of financial assets that are past due but not impaired [text block]
Aging analysis of accounts receivable, which were past due but not impaired, was as follows:
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Past due less than 60 days
 
$
560,016
 
 
531,327
 
Past due 61~180 days
 
 
12,790
 
 
9,505
 
Past due over 180 days
 
 
-
 
 
1,020
 
 
 
$
572,806
 
 
541,852
 

Fact Table
Network
155 - Disclosure - Inventories (Tables)
(http://auo.com/role/InventoriesTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleofinventoryTextBlock (label)
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Finished goods
 
$
10,095,820
 
 
9,532,199
 
Work-in-progress
 
 
9,405,677
 
 
11,100,347
 
Raw materials
 
 
5,352,826
 
 
7,046,789
 
 
 
$
24,854,323
 
 
27,679,335
 

Fact Table
Network
156 - Disclosure - Noncurrent Assets Held for Sale (Tables)
(http://auo.com/role/NoncurrentAssetsHeldForSaleTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisclosureOfDetailedInformationAboutNoncurrentAssetsHeldForSaleTextBlock (label)
Noncurrent assets held for sale as of December 31, 2017 and 2016 consisted of the following:
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Property, plant and equipment
 
$
1,963,370
 
 
228,015
 
Land use right
 
 
444,610
 
 
-
 
 
 
$
2,407,980
 
 
228,015
 

Fact Table
Network
157 - Disclosure - Investments in equity-accounted Investees (Tables)
(http://auo.com/role/InvestmentsInEquityaccountedInvesteesTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfInterestsInAssociatesExplanatory (label)
 
 
 
 
Principal
 
December 31, 2017
 
December 31, 2016
 
Name of
associate
 
Principal
activities
 
place of
business
 
Ownership
interest
 
Amount
 
Ownership
interest
 
Amount
 
 
 
 
 
 
 
 
%
 
(in thousands)
 
 
%
 
(in thousands)
 
Lextar Electronics Corp. (“Lextar”)
 
Manufacturing and sales of Light Emitting Diode
 
Taiwan ROC
 
 
27
 
$
3,104,955
 
 
25
 
$
3,082,856
 
Raydium Semiconductor Corporation (“Raydium”)
 
IC design
 
Taiwan ROC
 
 
18
 
 
678,908
 
 
18
 
 
712,829
 
Star River Energy Corp. (“SREC”)
 
Holding company
 
Taiwan ROC
 
 
34
 
 
533,840
 
 
34
 
 
531,805
 
Daxin Materials Corp. (“Daxin”)
 
Research, manufacturing, and sales of display related chemicals
 
Taiwan ROC
 
 
25
 
 
573,571
 
 
25
 
 
525,835
 
SSEC
 
Holding company
 
Taiwan ROC
 
 
37
 
 
369,153
 
 
-
 
 
-
 
Others
 
 
 
 
 
 
 
 
 
26,060
 
 
 
 
 
-
 
 
 
 
 
 
 
 
 
 
$
5,286,487
 
 
 
 
$
4,853,325
 
 
There is no individually significant associate for the Company. The following table summarized the amount recognized by the Company at its share of those associates.
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
The Company’s share of profits of associates
 
$
251,699
 
 
18,644
 
 
248,165
 
The Company’s share of other comprehensive loss of associates
 
 
(62,084)
 
 
(29,460)
 
 
(71,585)
 
The Company’s share of total comprehensive income (loss) of associates
 
$
189,615
 
 
(10,816)
 
 
176,580
 
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfInterestsInOtherEntitiesExplanatory (label)
Investments in equity-accounted investees at the reporting dates consisted of the following:
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Associates
 
$
5,286,487
 
 
4,853,325
 
Joint ventures
 
 
310,800
 
 
325,012
 
 
 
$
5,597,287
 
 
5,178,337
 
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfJointVenturesExplanatory (label)
There is no individually significant joint venture for the Company. The following table summarized the amount recognized by the Company at its share of those joint ventures.
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
The Company’s share of profits (losses) of joint ventures
 
$
(12,693)
 
 
82,134
 
 
201,287
 
The Company’s share of other comprehensive income (loss) of joint ventures
 
 
-
 
 
(314,710)
 
 
394,132
 
The Company’s share of total comprehensive income (loss) of joint ventures
 
$
(12,693)
 
 
(232,576)
 
 
595,419
 

Fact Table
Network
158 - Disclosure - Disposal of Part of Ownership Interest in Subsidiary without Losing Control (Tables)
(http://auo.com/role/DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisclosureOfEffectsOfChangesInParentsOwnershipInterestInSubsidiaryThatDoNotResultInLossOfControlOnEquityAttributableToOwnersOfParentExplanatoryTextBlock (label)
In November 2017, the Company disposed its ownership interest in DPTW totaling of 9.99% with consideration (net of costs of disposal) amounting to $1,776,984 thousand in cash. The effect of changes in ownership interest of the subsidiary which is attributable to owners of the parent is summarized as follows:
 
 
 
For the year ended December 31, 2017
 
 
 
(in thousands)
 
Consideration received
 
$
1,776,984
 
Carrying value of the equity interest disposed of
 
 
(1,190,529)
 
Capital surplus – changes in ownership interest of subsidiary
 
 
(12,099)
 
Other equity – effect from foreign currency translation differences arising from foreign operations
 
 
(56,160)
 
Capital surplus – differences between consideration and carrying amount arising from disposal of interest in subsidiary
 
$
518,196
 

Fact Table
Network
159 - Disclosure - Disposal of Subsidiaries (Tables)
(http://auo.com/role/DisposalOfSubsidiariesTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisclosureOfDetailedInformationAboutCarryingValueOfAssetsAndLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposedTextBlock (label)
The carrying amounts of the assets and liabilities of the subsidiaries disposed of by the Company were as follows:
 
 
 
Amounts
 
 
 
(In thousands)
 
Cash and cash equivalents
 
$
203,607
 
Accounts receivable and other receivables
 
 
4,513
 
Other current assets
 
 
38,649
 
Property, plant and equipment
 
 
260,828
 
Other assets
 
 
54,397
 
Payable for equipment
 
 
(71,076)
 
Accrued expense and other current liabilities
 
 
(3,062)
 
Long-term borrowings
 
 
(84,187)
 
Net assets disposed of
 
$
403,669
 

Fact Table
Network
160 - Disclosure - Property, Plant and Equipment (Tables)
(http://auo.com/role/PropertyPlantAndEquipmentTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory (label)
 
 
 
For the year ended December 31, 2017
 
 
 
Balance, Beginning
of Year
 
Additions
 
Disposal or
write off
 
Reclassification and effect of
change in exchange
rate
 
Balance,
End of Year
 
 
 
(in thousands)
 
Cost:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Land
 
$
8,873,981
 
 
865,956
 
 
(675,811)
 
 
(55,467)
 
 
9,008,659
 
Buildings
 
 
130,595,844
 
 
433,269
 
 
(3,786,388)
 
 
(3,231,856)
 
 
124,010,869
 
Machinery and equipment
 
 
798,046,434
 
 
1,827,188
 
 
(14,844,436)
 
 
15,135,124
 
 
800,164,310
 
Other equipment
 
 
32,419,736
 
 
4,140,108
 
 
(7,900,925)
 
 
700,229
 
 
29,359,148
 
 
 
 
969,935,995
 
 
7,266,521
 
 
(27,207,560)
 
 
12,548,030
 
 
962,542,986
 
Accumulated depreciation and impairment loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Land
 
 
173,397
 
 
-
 
 
(54,186)
 
 
(119,211)
 
 
-
 
Buildings
 
 
36,028,301
 
 
3,216,571
 
 
(3,785,921)
 
 
(1,633,576)
 
 
33,825,375
 
Machinery and equipment
 
 
698,110,663
 
 
27,946,301
 
 
(14,694,674)
 
 
(4,027,879)
 
 
707,334,411
 
Other equipment
 
 
26,154,173
 
 
5,655,026
 
 
(7,883,150)
 
 
(208,469)
 
 
23,717,580
 
 
 
 
760,466,534
 
 
36,817,898
 
 
(26,417,931)
 
 
(5,989,135)
 
 
764,877,366
 
Prepayments for purchase of land and equipment, and construction in progress
 
 
13,272,371
 
 
36,289,529
 
 
(29,206)
 
 
(22,265,225)
 
 
27,267,469
 
Net carrying amounts
 
$
222,741,832
 
 
 
 
 
 
 
 
 
 
 
224,933,089
 
  
 
 
For the year ended December 31, 2016
 
 
 
Balance, Beginning
of Year
 
Additions
 
Disposal or
write off
 
Reclassification and effect of
change in exchange rate
 
Balance,
End of Year
 
 
 
(in thousands)
 
Cost:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Land
 
$
9,112,286
 
 
-
 
 
(14,455)
 
 
(223,850)
 
 
8,873,981
 
Buildings
 
 
122,156,354
 
 
1,086
 
 
(580,089)
 
 
9,018,493
 
 
130,595,844
 
Machinery and equipment
 
 
779,019,328
 
 
2,424,626
 
 
(24,033,087)
 
 
40,635,567
 
 
798,046,434
 
Other equipment
 
 
34,248,005
 
 
4,532,365
 
 
(6,462,949)
 
 
102,315
 
 
32,419,736
 
 
 
 
944,535,973
 
 
6,958,077
 
 
(31,090,580)
 
 
49,532,525
 
 
969,935,995
 
Accumulated depreciation and impairment loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Land
 
 
184,889
 
 
-
 
 
(14,487)
 
 
2,995
 
 
173,397
 
Buildings
 
 
32,791,946
 
 
3,107,870
 
 
(132,589)
 
 
261,074
 
 
36,028,301
 
Machinery and equipment
 
 
694,955,031
 
 
30,329,428
 
 
(23,846,019)
 
 
(3,327,777)
 
 
698,110,663
 
Other equipment
 
 
30,215,702
 
 
5,130,524
 
 
(6,430,868)
 
 
(2,761,185)
 
 
26,154,173
 
 
 
 
758,147,568
 
 
38,567,822
 
 
(30,423,963)
 
 
(5,824,893)
 
 
760,466,534
 
Prepayments for purchase of land and equipment, and construction in progress
 
 
22,397,204
 
 
48,931,054
 
 
(29,246)
 
 
(58,026,641)
 
 
13,272,371
 
Net carrying amounts
 
$
208,785,609
 
 
 
 
 
 
 
 
 
 
 
222,741,832
 
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of significant unobservable inputs used in fair value measurement of assets [text block]
The following table shows the valuation technique used in the determination of fair value of the polysilicon CGU’s long-term assets within Level 3, as well as the significant inputs used in the valuation model.
 
Description of
Valuation Technique
 
Significant inputs
 
Inter-relationship between
significant inputs and fair
value measurement
Sales comparison approach:
Sales price of comparable property in close proximity are adjusted for differences in key attributes such as property size. The expected sales price is adjusted with sales discount based on land size. The significant inputs into this valuation approach are price per square meter of comparable properties and sales discount.
l    Price per square meter (JPY 8,000).
l    Sales discount (15%).
 
The estimated fair value would increase (decrease) if:
l    the price per square meter is higher (lower); or
l    the sales discount rates are lower (higher).

Fact Table
Network
161 - Disclosure - Investment Property (Tables)
(http://auo.com/role/InvestmentPropertyTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisclosureOfSignificantUnobservableInputsInValuationTechniquesUsedTextBlock (label)
The significant inputs in valuation techniques used are set out below:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
 
 
 
 
 
 
 
 
Overall capital interest rate
 
 
1.86
%
 
2.06
%
Rate of return
 
 
10.00
%
 
10.00
%
Capitalization rate
 
 
12.00
%
 
-
 
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfDetailedInformationAboutInvestmentPropertyExplanatory (label)
 
 
For the year ended December 31, 2017
 
 
 
Balance,
Beginning
of Year
 
Additions
 
Disposal
 
Reclassification and effect of change
in exchange rate
 
Balance,
End of
Year
 
 
 
(in thousands)
 
Land
 
$
465,868
 
 
-
 
 
-
 
 
251,955
 
 
717,823
 
Fair Value
 
$
1,402,040
 
 
 
 
 
 
 
 
 
 
 
2,213,184
 
 
 
 
For the year ended December 31, 2016
 
 
 
Balance, Beginning
of Year
 
Additions
 
Disposal
 
Reclassification and effect of change
in exchange rate
 
Balance,
End of
Year
 
 
 
(in thousands)
 
Land
 
$
465,868
 
 
-
 
 
-
 
 
-
 
 
465,868
 
Fair Value
 
$
1,145,098
 
 
 
 
 
 
 
 
 
 
 
1,402,040
 

Fact Table
Network
162 - Disclosure - Intangible Assets (Tables)
(http://auo.com/role/IntangibleAssetsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory (label)
 
 
 
For the year ended December 31, 2017
 
 
 
Balance,
Beginning
of Year
 
Additions
 
Effect of change in exchange rate
 
Balance,
End of Year
 
 
 
(in thousands)
 
Cost:
 
 
 
 
 
 
 
 
 
 
 
 
 
Patent and technology fee
 
$
12,078,767
 
 
196,781
 
 
-
 
 
12,275,548
 
Accumulated amortization:
 
 
 
 
 
 
 
 
 
 
 
 
 
Patent and technology fee
 
 
9,756,528
 
 
628,606
 
 
117
 
 
10,385,251
 
Net carrying amounts
 
$
2,322,239
 
 
 
 
 
 
 
 
1,890,297
 
 
 
 
For the year ended December 31, 2016
 
 
 
Balance,
Beginning
of Year
 
Additions
 
Reclassification and effect of change
in exchange rate
 
Balance,
End of Year
 
 
 
(in thousands)
 
Cost:
 
 
 
 
 
 
 
 
 
 
 
 
 
Patent and technology fee
 
$
11,901,662
 
 
187,020
 
 
(9,915)
 
 
12,078,767
 
Accumulated amortization:
 
 
 
 
 
 
 
 
 
 
 
 
 
Patent and technology fee
 
 
8,606,978
 
 
1,159,465
 
 
(9,915)
 
 
9,756,528
 
Net carrying amounts
 
$
3,294,684
 
 
 
 
 
 
 
 
2,322,239
 

Fact Table
Network
163 - Disclosure - Other Current Assets and Other Noncurrent Assets (Tables)
(http://auo.com/role/OtherCurrentAssetsAndOtherNoncurrentAssetsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfOtherAssetsTextBlock (label)
 
 
 
December 31,
 
 
 
2017
2016
 
 
 
(in thousands)
 
Prepayment for equipment
 
$
457,201
 
 
463,910
 
Refundable and overpaid tax
 
 
3,291,235
 
 
3,015,534
 
Long-term prepaid rents
 
 
1,412,026
 
 
1,940,489
 
Prepayments for purchases
 
 
2,053,554
 
 
3,360,869
 
Long-term receivables
 
 
1,790,400
 
 
1,974,271
 
Refundable deposits
 
 
515,148
 
 
133,221
 
Others
 
 
2,551,070
 
 
2,481,104
 
 
 
 
12,070,634
 
 
13,369,398
 
Less: current
 
 
(6,631,130)
 
 
(6,330,283)
 
Noncurrent
 
$
5,439,504
 
 
7,039,115
 

Fact Table
Network
164 - Disclosure - Short-term Borrowings (Tables)
(http://auo.com/role/ShorttermBorrowingsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfShortTermBorrowingsTextBlock (label)
 
 
December 31,
 
 
 
2017
 
 
2016
 
 
 
(in thousands)
 
Unsecured borrowings
 
$
3,424,376
 
 
 
526,723
 
Unused credit facility
 
$
35,866,924
 
 
 
33,877,442
 
Interest rate
 
 
3.62%~4.35%
 
 
 
4.35%~4.39%
 

Fact Table
Network
165 - Disclosure - Long-term Borrowings (Tables)
(http://auo.com/role/LongtermBorrowingsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisclosureOfDetailedInformationAboutReconciliationOfLiabilitiesToCashFlowArisingFromFinancingActivitiesExplanatoryTextBlock (label)
The reconciliation of liabilities to cash flows arising from financing activities was as follows:
 
 
 
 
 
 
 
 
 
Non-cash changes
 
 
 
 
 
 
January 1,
2017
 
Cash flows
 
Changes in
exchange
rate
 
Effect of change in consolidated
entities
 
Amortization
on transaction
costs
 
December 31,
2017
 
 
 
(in thousands)
 
Short-term borrowings
 
$
526,723
 
 
2,903,927
 
 
(6,274)
 
 
-
 
 
-
 
 
3,424,376
 
Long-term borrowings
 
 
124,262,620
 
 
(12,571,198)
 
 
(1,142,980)
 
 
(84,187)
 
 
143,755
 
 
110,608,010
 
Guarantee deposits received
 
 
838,263
 
 
(34,654)
 
 
34,873
 
 
-
 
 
-
 
 
838,482
 
Total liabilities from financing activities
 
$
125,627,606
 
 
(9,701,925)
 
 
(1,114,381)
 
 
(84,187)
 
 
143,755
 
 
114,870,868
 
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfLongTermBorrowingsTextBlock (label)
Bank or agent bank
 
Durations
 
December 31,
2017
 
 
December 31,
2016
 
 
 
 
 
(in thousands)
 
Syndicated loans:
 
 
 
 
 
 
 
 
 
 
Bank of Taiwan and others
 
From Feb. 2015 to Feb. 2020
 
$
22,704,000
 
 
 
25,800,000
 
Bank of Taiwan and others
 
From Apr. 2016 to Apr. 2021
 
 
37,500,000
 
 
 
25,000,000
 
Bank of Taiwan and others
 
From May 2017 to May 2022
 
 
10,000,000
 
 
 
-
 
Bank of Taiwan and others
 
From Jan. 2014 to Dec. 2017
 
 
-
 
 
 
23,672,000
 
Bank of Taiwan and others
 
From Feb. 2013 to Mar. 2017
 
 
-
 
 
 
7,596,757
 
First Commercial Bank and others
 
From Feb. 2016 to Feb. 2019
 
 
2,395,868
 
 
 
3,000,000
 
Standard Chartered Bank and others
 
From Sep. 2014 to Jun. 2017
 
 
-
 
 
 
2,358,776
 
Bank of China and others
 
From Nov. 2015 to Nov. 2023
 
 
27,800,680
 
 
 
21,216,394
 
Unsecured loans
 
From Apr. 2012 to Apr. 2022
 
 
10,203,390
 
 
 
16,005,955
 
Mortgage loans
 
From Apr. 2016 to Apr. 2032
 
 
441,035
 
 
 
95,727
 
 
 
 
 
 
111,044,973
 
 
 
124,745,609
 
Less: transaction costs
 
 
 
 
(436,963)
 
 
 
(482,989)
 
 
 
 
 
 
110,608,010
 
 
 
124,262,620
 
Less: current portion
 
 
 
 
(8,155,234)
 
 
 
(18,074,627)
 
 
 
 
 
$
102,452,776
 
 
 
106,187,993
 
Unused credit facility
 
 
 
$
37,220,839
 
 
 
43,228,323
 
Interest rate range
 
 
 
 
1.25%~ 5.16%
 
 
 
1.09%~ 4.90%
 

Fact Table
Network
166 - Disclosure - Provisions (Tables)
(http://auo.com/role/ProvisionsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfProvisionsTextBlock (label)
Movements in provisions for the years ended December 31, 2017 and 2016 were as follows:
 
 
 
Warranties
 
Litigation   and claims
 
Others
 
Total
 
 
(in thousands)
Balance at January 1, 2017
 
$
1,528,898
 
 
 
1,027,328
 
 
 
265,445
 
 
 
2,821,671
 
Additions
 
 
436,464
 
 
 
90,945
 
 
 
4,346
 
 
 
531,755
 
Usage
 
 
(297,829
)
 
 
(1,025,032
)
 
 
-  
 
 
 
(1,322,861
)
Reversals
 
 
(120,704
)
 
 
-  
 
 
 
-  
 
 
 
(120,704
)
Effect of change in exchange rate
 
 
131
 
 
 
(3,721
)
 
 
(20,308
)
 
 
(23,898
)
Balance at December 31, 2017
 
 
1,546,960
 
 
 
89,520
 
 
 
249,483
 
 
 
1,885,963
 
Less: current
 
 
(725,366
)
 
 
(89,520
)
 
 
(4,346
)
 
 
(819,232
)
Noncurrent
 
$
821,594
 
 
 
-  
 
 
 
245,137
 
 
 
1,066,731
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance at January 1, 2016
 
$
1,819,519
 
 
 
4,018,880
 
 
 
297,937
 
 
 
6,136,336
 
Additions
 
 
309,475
 
 
 
597,325
 
 
 
-  
 
 
 
906,800
 
Usage
 
 
(265,917
)
 
 
(3,405,923
)
 
 
-  
 
 
 
(3,671,840
)
Reversals
 
 
(334,174
)
 
 
-  
 
 
 
(25,839
)
 
 
(360,013
)
Effect of change in exchange rate
 
 
(5
)
 
 
(182,954
)
 
 
(6,653
)
 
 
(189,612
)
Balance at December 31, 2016
 
 
1,528,898
 
 
 
1,027,328
 
 
 
265,445
 
 
 
2,821,671
 
Less: current
 
 
(756,079
)
 
 
(1,027,328
)
 
 
-  
 
 
 
(1,783,407
)
Noncurrent
 
$
772,819
 
 
 
-  
 
 
 
265,445
 
 
 
1,038,264
 

Fact Table
Network
167 - Disclosure - Operating Leases (Tables)
(http://auo.com/role/OperatingLeasesTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfMaturityAnalysisOfFinanceLeasePaymentsReceivableExplanatory (label)
Non-cancellable lease receivables as of December 31, 2017 and 2016 were as follows:
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Less than one year
 
$
46,538
 
 
8,052
 
Between one and five years
 
 
404,695
 
 
32,208
 
More than five years
 
 
2,189,936
 
 
87,230
 
 
 
$
2,641,169
 
 
127,490
 
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory (label)
Non-cancellable lease payments as of December 31, 2017 and 2016 were as follows:
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Less than one year
 
$
858,207
 
 
843,880
 
Between one and five years
 
 
3,070,676
 
 
3,483,532
 
More than five years
 
 
3,491,748
 
 
4,011,338
 
 
 
$
7,420,631
 
 
8,338,750
 

Fact Table
Network
168 - Disclosure - Employee Benefits (Tables)
(http://auo.com/role/EmployeeBenefitsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfNetDefinedBenefitLiabilityTextBlock (label)
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Present value of defined benefit obligation
 
$
(3,128,927)
 
 
(3,027,176)
 
Fair value of plan assets
 
 
2,213,018
 
 
2,105,690
 
Net defined benefit liability
 
$
(915,909)
 
 
(921,486)
 
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfPrincipalActuarialAssumptionsUsedTextBlock (label)
 
 
December 31,
 
 
 
2017
 
2016
 
Discount rate
 
0.21%~1.60%
 
0.33%~1.80%
 
Rate of increase in future salary
 
0.77%~4.49%
 
1.19%~3.79%
 
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfReconciliationForNetDefinedBenefitLiabilityAndItsComponentsTextBlock (label)
The following table shows a reconciliation for net defined benefit liability and its components.
 
 
 
Defined benefit obligation
 
Fair value of plan assets
 
Net defined benefit liability
 
 
 
2017
 
2016
 
2017
 
2016
 
2017
 
2016
 
 
 
(in thousands)
 
Balance at January 1,
 
$
(3,027,176)
 
 
(2,813,072)
 
 
2,105,690
 
 
2,059,399
 
 
(921,486)
 
 
(753,673)
 
Included in profit or loss
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Service cost
 
 
(6,242)
 
 
(18,227)
 
 
-
 
 
-
 
 
(6,242)
 
 
(18,227)
 
Interest cost
 
 
(53,624)
 
 
(53,959)
 
 
-
 
 
-
 
 
(53,624)
 
 
(53,959)
 
Expected return on plan assets
 
 
-
 
 
-
 
 
37,902
 
 
39,054
 
 
37,902
 
 
39,054
 
 
 
 
(59,866)
 
 
(72,186)
 
 
37,902
 
 
39,054
 
 
(21,964)
 
 
(33,132)
 
Included in OCI
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Remeasurements (loss) gain:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Actuarial (loss) gain arising from:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
- demographic assumptions
 
 
(21,054)
 
 
(51,349)
 
 
-
 
 
-
 
 
(21,054)
 
 
(51,349)
 
- financial assumptions
 
 
(126,708)
 
 
(244,142)
 
 
-
 
 
-
 
 
(126,708)
 
 
(244,142)
 
- experience adjustment
 
 
66,016
 
 
91,378
 
 
-
 
 
-
 
 
66,016
 
 
91,378
 
Return on plan assets excluding interest income
 
 
-
 
 
-
 
 
(16,345)
 
 
(21,081)
 
 
(16,345)
 
 
(21,081)
 
 
 
 
(81,746)
 
 
(204,113)
 
 
(16,345)
 
 
(21,081)
 
 
(98,091)
 
 
(225,194)
 
Other
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Contributions paid by the employer
 
 
-
 
 
-
 
 
102,870
 
 
103,761
 
 
102,870
 
 
103,761
 
Benefits paid
 
 
37,528
 
 
62,516
 
 
(17,099)
 
 
(28,443)
 
 
20,429
 
 
34,073
 
Effect of changes in exchange rates and others
 
 
2,333
 
 
(321)
 
 
-
 
 
(47,000)
 
 
2,333
 
 
(47,321)
 
 
 
 
39,861
 
 
62,195
 
 
85,771
 
 
28,318
 
 
125,632
 
 
90,513
 
Balance at December 31,
 
$
(3,128,927)
 
 
(3,027,176)
 
 
2,213,018
 
 
2,105,690
 
 
(915,909)
 
 
(921,486)
 
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDisclosure of additional information about defined benefit plans [text block]
Reasonably possible changes at December 31, 2017 and 2016 to one of the relevant actuarial assumptions, holding other assumptions constant, would have affected the defined benefit obligation by the amounts shown below.
 
 
 
December 31, 2017
 
December 31, 2016
 
 
 
Changes in assumptions
 
Changes in assumptions
 
 
 
+ 0.25%
 
- 0.25%
 
+ 0.25%
 
- 0.25%
 
 
 
(in thousands)
 
(in thousands)
 
Discount rate
 
$
(158,160)
 
 
167,594
 
 
(156,764)
 
 
166,453
 
Rate of increase in future salary
 
$
164,867
 
 
(156,470)
 
 
164,140
 
 
(155,466)
 

Fact Table
Network
169 - Disclosure - Capital and Other Components of Equity (Tables)
(http://auo.com/role/CapitalAndOtherComponentsOfEquityTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisclosureOfAppropriationOfEarningsTextBlock (label)
AUO’s appropriations of earnings for 2015 had been approved in the shareholders’ meeting held on June 16, 2016. The appropriations and dividends per share were as follows:
 
 
 
For fiscal year 2015
 
 
 
Appropriation of earnings
 
Dividends per
share
 
 
 
(in thousands, except for per share data)
 
Legal reserve
 
$
493,196
 
 
 
 
Cash dividends to shareholders
 
 
3,368,486
 
$
0.35
 
 
 
$
3,861,682
 
 
 
 
 
AUO’s appropriations of earnings for 2016 had been approved in the shareholders’ meeting held on June 15, 2017. The appropriations and dividends per share were as follows:
 
 
 
For fiscal year 2016
 
 
 
Appropriation of earnings
 
Dividends per share
 
 
 
(in thousands, except for per share data)
 
Legal reserve
 
$
781,894
 
 
 
 
Cash dividends to shareholders
 
 
5,389,577
 
$
0.56
 
 
 
$
6,171,471
 
 
 
 
 
AUO’s appropriations of earnings for 2017 have been approved in the meeting of the board of directors held on March 23, 2018. The appropriations and dividends per share were as follows:
 
 
 
For fiscal year 2017
 
 
 
Appropriation of earnings
 
Dividends per share
 
 
 
 
 
 
 
 
 
 
 
(in thousands, except for per share data)
 
Legal reserve
 
$
3,235,942
 
 
 
 
Cash dividends to shareholders
 
 
14,436,368
 
$
1.50
 
 
 
$
17,672,310
 
 
 
 
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfNoncontrollingInterestsTextBlock (label)
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Balance at the beginning of the year
 
$
18,388,204
 
 
22,648,604
 
 
19,329,254
 
Equity attributable to non-controlling interests:
 
 
 
 
 
 
 
 
 
 
Loss for the year
 
 
(2,120,737)
 
 
(1,211,772)
 
 
(28,161)
 
Adjustment of changes in ownership of investees
 
 
(6,421)
 
 
(191,394)
 
 
(262,229)
 
Foreign currency translation differences
 
 
(355,700)
 
 
(1,867,168)
 
 
(680,218)
 
Remeasurement of defined benefit plans
 
 
201
 
 
(98)
 
 
5,003
 
Proceeds from subsidiaries capital increase
 
 
11,620
 
 
9,590
 
 
10,086,575
 
Effect of disposal of interest in subsidiary to non-controlling interests
 
 
1,258,788
 
 
-
 
 
-
 
Effect of acquisition of non-controlling interests
 
 
-
 
 
37,036
 
 
(5,245,698)
 
Redemption of subsidiary treasury shares
 
 
-
 
 
(865,633)
 
 
(227,676)
 
Others
 
 
(107,454)
 
 
(170,961)
 
 
(328,246)
 
Balance at the end of the year
 
$
17,068,501
 
 
18,388,204
 
 
22,648,604
 
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfOtherComponentsOfEquityTextBlock (label)
 
 
Cumulative translation differences
 
Unrealized gains (losses) on
available-for-sale financial
assets
 
Unrealized gains (losses) on cash
flow hedges
 
Total
 
 
 
(in thousands)
 
Balance at January 1, 2017
 
$
531,006
 
 
224,299
 
 
21,992
 
 
777,297
 
Foreign operations – foreign currency translation differences
 
 
(1,882,545)
 
 
-
 
 
-
 
 
(1,882,545)
 
Effective portion of changes in fair value of cash flow hedges
 
 
-
 
 
-
 
 
(21,992)
 
 
(21,992)
 
Net change in fair value of available-for-sale financial assets
 
 
-
 
 
1,146,422
 
 
-
 
 
1,146,422
 
Equity-accounted investees – share of other comprehensive income
 
 
(68,637)
 
 
6,310
 
 
-
 
 
(62,327)
 
Related tax
 
 
299,207
 
 
-
 
 
-
 
 
299,207
 
Balance at December 31, 2017
 
$
(1,120,969)
 
 
1,377,031
 
 
-
 
 
256,062
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance at January 1, 2016
 
$
6,540,196
 
 
(539,653)
 
 
14,793
 
 
6,015,336
 
Foreign operations – foreign currency translation differences
 
 
(5,510,836)
 
 
-
 
 
-
 
 
(5,510,836)
 
Effective portion of changes in fair value of cash flow hedges
 
 
-
 
 
-
 
 
7,199
 
 
7,199
 
Net change in fair value of available-for-sale financial assets
 
 
-
 
 
769,410
 
 
-
 
 
769,410
 
Equity-accounted investees – share of other comprehensive income
 
 
(342,162)
 
 
(2,582)
 
 
-
 
 
(344,744)
 
Realized gain on sales of securities reclassified to profit or loss
 
 
(265,849)
 
 
(2,876)
 
 
-
 
 
(268,725)
 
Related tax
 
 
109,657
 
 
-
 
 
-
 
 
109,657
 
Balance at December 31, 2016
 
$
531,006
 
 
224,299
 
 
21,992
 
 
777,297
 
 
 
 
Cumulative translation differences
 
Unrealized gains (losses) on
available-for-sale financial
assets
 
Unrealized gains (losses) on cash
flow hedges
 
Total
 
 
 
(in thousands)
 
Balance at January 1, 2015
 
$
5,766,162
 
 
29,107
 
 
18,440
 
 
5,813,709
 
Foreign operations – foreign currency translation differences
 
 
405,731
 
 
-
 
 
-
 
 
405,731
 
Effective portion of changes in fair value of cash flow hedges
 
 
-
 
 
-
 
 
(3,647)
 
 
(3,647)
 
Net change in fair value of available-for-sale financial assets
 
 
-
 
 
(521,173)
 
 
-
 
 
(521,173)
 
Equity-accounted investees – share of other comprehensive income
 
 
470,545
 
 
22,070
 
 
-
 
 
492,615
 
Realized gain on sales of securities reclassified to profit or loss
 
 
(104,905)
 
 
(69,657)
 
 
-
 
 
(174,562)
 
Related tax
 
 
2,663
 
 
-
 
 
-
 
 
2,663
 
Balance at December 31, 2015
 
$
6,540,196
 
 
(539,653)
 
 
14,793
 
 
6,015,336
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfReservesAndOtherEquityInterestExplanatory (label)
Balance of capital surplus as of December 31, 2017 and 2016 were as follows:
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
From common stock
 
$
52,756,091
 
 
52,756,091
 
From convertible bonds
 
 
6,049,862
 
 
6,049,862
 
From others
 
 
1,732,552
 
 
1,171,790
 
 
 
$
60,538,505
 
 
59,977,743
 

Fact Table
Network
170 - Disclosure - Share-based Payments (Tables)
(http://auo.com/role/SharebasedPaymentsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfNumberAndWeightedAverageExercisePricesOfActwOptionPlanTextBlock (label)
(4)
Information about ACTW’s outstanding stock options is as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
 
 
Weighted-average exercise price
(per share)
 
Number of options (shares)
 
Weighted- average exercise price
(per share)
 
Number of options (shares)
 
Outstanding at January 1
 
$
10
 
 
29,209,000
 
$
10
 
 
32,843,000
 
Options exercised
 
 
10
 
 
(1,162,000)
 
 
10
 
 
(959,000)
 
Options expired
 
 
-
 
 
(11,446,000)
 
 
-
 
 
(2,675,000)
 
Outstanding at December 31
 
 
10
 
 
16,601,000
 
 
10
 
 
29,209,000
 
Exercisable at December 31
 
 
 
 
 
12,425,000
 
 
 
 
 
20,578,000
 
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfNumberAndWeightedAverageExercisePricesOfDtpwOptionPlanTextBlock (label)
Information about DPTW’s outstanding stock options is as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
 
 
Weighted-average exercise price
(per share)
 
Number of
options
(shares)
 
Weighted-average exercise price
(per share)
 
Number of
options
(shares)
 
Outstanding at January 1
 
$
19.04
 
 
2,913,000
 
$
19.36
 
 
3,880,000
 
Options expired
 
 
-
 
 
(2,913,000)
 
 
-
 
 
(967,000)
 
Outstanding at December 31
 
 
-
 
 
-
 
 
19.04
 
 
2,913,000
 
Exercisable at December 31
 
 
 
 
 
-
 
 
 
 
 
2,913,000
 
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfTermsAndConditionsOfActwOptionPlanTextBlock (label)
(1)
The key terms and conditions related to the grants under ACTW’s outstanding employee stock option plan were disclosed as follows:
 
 
 
Grant date
 
Total number of options issued (units in
thousands)
 
Contractual life of options
 
Exercisable period
 
Exercise price
(per share)
 
2014 Employee stock option plan
 
Sep. 1, 2014
 
20
 
Sep.1, 2014 –
Aug. 31, 2019
 
After Aug. 31, 2016
 
$
10
 
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfValuationInformationOfActwOptionPlanTextBlock (label)
The fair value of the employee stock options granted by ACTW was measured at the dates of grant using the Binomial option pricing model. The valuation information was as follows:
 
 
 
2014 Employee Stock Option Plan
 
Expected volatility
 
 
38.88%
 
Risk-free interest rate
 
 
1.1648%
 
Expected duration
 
 
5 years
 
Fair value at the grant date
 
 
NT$0.20/per share
 

Fact Table
Network
171 - Disclosure - Revenue (Tables)
(http://auo.com/role/RevenueTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfRevenuesTextBlock (label)
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Sale of goods
 
$
329,584,136
 
 
318,243,539
 
 
351,566,289
 
Other operating revenue
 
 
11,444,131
 
 
10,845,497
 
 
8,780,205
 
 
 
$
341,028,267
 
 
329,089,036
 
 
360,346,494
 

Fact Table
Network
172 - Disclosure - The Nature of Expenses (Tables)
(http://auo.com/role/NatureOfExpensesTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfExpensesByNatureTextBlock (label)
(a)
Depreciation of property, plant and equipment
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Recognized in cost of sales
 
$
31,660,279
 
 
34,305,760
 
 
42,558,430
 
Recognized in operating expenses(i)
 
 
4,140,951
 
 
4,228,015
 
 
4,293,057
 
 
 
$
35,801,230
 
 
38,533,775
 
 
46,851,487
 
 
(b)
Amortization of intangible assets
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Recognized in cost of sales
 
$
628,606
 
 
1,159,465
 
 
892,566
 
Recognized in operating expenses(i)
 
 
-
 
 
-
 
 
1,796
 
 
 
$
628,606
 
 
1,159,465
 
 
894,362
 
 
(c)
Employee benefits expenses
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Salaries and wages
 
$
37,818,321
 
 
33,283,639
 
 
34,161,791
 
Labor and health insurances
 
 
1,967,688
 
 
1,804,900
 
 
1,879,782
 
Retirement benefits
 
 
1,917,136
 
 
2,098,013
 
 
2,351,109
 
Other employee benefits
 
 
3,197,324
 
 
3,024,372
 
 
2,910,576
 
 
 
$
44,900,469
 
 
40,210,924
 
 
41,303,258
 
 
 
 
 
 
 
 
 
 
 
 
Employee benefits expense summarized by function
 
 
 
 
 
 
 
 
 
 
Recognized in cost of sales
 
$
34,703,579
 
 
30,950,614
 
 
32,781,145
 
Recognized in operating expenses(i)
 
 
10,196,890
 
 
9,260,310
 
 
8,522,113
 
 
 
$
44,900,469
 
 
40,210,924
 
 
41,303,258
 
 
(i)
Operating expenses are inclusive of selling and distribution expenses, general and administrative expenses and research and development expenses.

Fact Table
Network
173 - Disclosure - Other Income (Tables)
(http://auo.com/role/OtherIncomeTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfOtherIncomeTextBlock (label)
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Interest income on bank deposits
 
$
591,995
 
 
491,160
 
 
629,057
 
Interest income on government bonds with reverse repurchase agreements and others
 
 
20,215
 
 
3,382
 
 
43,581
 
Rental income, net
 
 
531,442
 
 
527,381
 
 
472,484
 
Dividend income
 
 
248,514
 
 
107,141
 
 
112,661
 
Grants
 
 
1,801,585
 
 
631,750
 
 
337,526
 
Others
 
 
636,146
 
 
619,414
 
 
602,284
 
 
 
$
3,829,897
 
 
2,380,228
 
 
2,197,593
 

Fact Table
Network
174 - Disclosure - Other Gains and Losses (Tables)
(http://auo.com/role/OtherGainsAndLossesTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfOtherGainsAndLossesTextBlock (label)
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Foreign exchange gains (losses), net
 
$
(1,364,929)
 
 
770,325
 
 
537,248
 
Gains (losses) on valuation of financial assets (liabilities) measured at fair value through profit or loss, net
 
 
1,646,034
 
 
(411,437)
 
 
939,117
 
Gains (losses) on disposals of investments and financial assets, net
 
 
42,788
 
 
(333,858)
 
 
(10,618)
 
Gains on disposals of property, plant and equipment, net
 
 
330,814
 
 
24,278
 
 
585,196
 
Impairment losses on assets
 
 
(1,046,668)
 
 
(34,733)
 
 
(7,026,226)
 
Litigation losses and others
 
 
(584,599)
 
 
(940,248)
 
 
(5,003,037)
 
 
 
$
(976,560)
 
 
(925,673)
 
 
(9,978,320)
 

Fact Table
Network
175 - Disclosure - Finance Costs (Tables)
(http://auo.com/role/FinanceCostsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfBorrowingCostsExplanatory (label)
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Interest expense on bank borrowings
 
$
2,519,839
 
 
2,072,458
 
 
2,398,159
 
Interest expense on others
 
 
348,022
 
 
635,429
 
 
192,864
 
 
 
$
2,867,861
 
 
2,707,887
 
 
2,591,023
 

Fact Table
Network
176 - Disclosure - Income Taxes (Tables)
(http://auo.com/role/IncomeTaxesTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfChangesInDeferredTaxAssetsAndLiabilitiesTextBlock (label)
(e)
Changes in deferred tax assets and liabilities were as follows:
 
 
 
January
1, 2016
 
Recognized
in profit or loss
 
Recognized
in other
comprehensive
income
 
Effect of change in consolidated
entities,
exchange rate
and others
 
December
31, 2016
 
Recognized
in profit or
loss
 
Recognized
in other
comprehensive
income
 
Effect of change in consolidated
entities,
exchange rate
and others
 
December
31, 2017
 
 
 
(in thousands)
 
Investment tax credits
 
$
859,300
 
 
-
 
 
-
 
 
(19,188)
 
 
840,112
 
 
(121,696)
 
 
-
 
 
(61,936)
 
 
656,480
 
Tax losses carryforwards
 
 
49,961
 
 
(49,961)
 
 
-
 
 
-
 
 
-
 
 
3,941,185
 
 
-
 
 
827
 
 
3,942,012
 
Unrealized loss and expenses
 
 
187,641
 
 
4,256
 
 
-
 
 
(12,949)
 
 
178,948
 
 
47,383
 
 
-
 
 
(3,592)
 
 
222,739
 
Inventories write-down
 
 
22,848
 
 
49,658
 
 
-
 
 
(2,568)
 
 
69,938
 
 
575,199
 
 
-
 
 
(250)
 
 
644,887
 
Foreign investment losses (gains) under the equity method
 
 
(1,174,733)
 
 
83,710
 
 
-
 
 
-
 
 
(1,091,023)
 
 
200,870
 
 
-
 
 
-
 
 
(890,153)
 
Remeasurement of defined benefit plans
 
 
2,798
 
 
-
 
 
-
 
 
(2,798)
 
 
-
 
 
-
 
 
155,930
 
 
-
 
 
155,930
 
Foreign operations – foreign currency translation differences
 
 
(312,049)
 
 
-
 
 
230,202
 
 
-
 
 
(81,847)
 
 
-
 
 
316,372
 
 
-
 
 
234,525
 
Unrealized gains on available-for-sale financial assets
 
 
(903)
 
 
-
 
 
-
 
 
903
 
 
-
 
 
-
 
 
-
 
 
-
 
 
-
 
Others
 
 
84,734
 
 
(39,487)
 
 
-
 
 
(54,785)
 
 
(9,538)
 
 
447,963
 
 
-
 
 
25,942
 
 
464,367
 
Total
 
$
(280,403)
 
 
48,176
 
 
230,202
 
 
(91,385)
 
 
(93,410)
 
 
5,090,904
 
 
472,302
 
 
(39,009)
 
 
5,430,787
 
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfComponentsOfIncomeTaxExpenseTableTextBlock (label)
(a)
The components of income tax expense (benefit) for the years ended December 31, 2017, 2016 and 2015 were as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Current income tax expense (benefit):
 
 
 
 
 
 
 
 
 
 
Current year
 
$
3,719,483
 
 
1,601,384
 
 
1,561,194
 
Adjustment to prior years and others
 
 
246,264
 
 
879,337
 
 
(208,609)
 
 
 
 
3,965,747
 
 
2,480,721
 
 
1,352,585
 
 
 
 
 
 
 
 
 
 
 
 
Deferred tax expense (benefit):
 
 
 
 
 
 
 
 
 
 
Temporary differences
 
 
(1,271,415)
 
 
(98,137)
 
 
(163,513)
 
Investment tax credit and tax losses carryforwards
 
 
(3,819,489)
 
 
49,961
 
 
(804,231)
 
 
 
 
(5,090,904)
 
 
(48,176)
 
 
(967,744)
 
Total income tax expense (benefit)
 
$
(1,125,157)
 
 
2,432,545
 
 
384,841
 
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfIncomeTaxReconciliationTextBlock (label)
(c)
Reconciliation of the expected income tax expense (benefit) calculated based on the ROC statutory income tax rate compared with the actual income tax expense (benefit) as reported in the consolidated statements of comprehensive income for the years ended December 31, 2017, 2016 and 2015, was as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
Rate
 
 
Amount
 
Rate
 
Amount
 
Rate
 
Amount
 
 
 
 
 
 
 
(in thousands)
 
 
 
 
(in thousands)
 
 
 
 
(in thousands)
 
Profit before income taxes
 
 
 
 
 
$
39,363,606
 
 
 
 
$
11,185,902
 
 
 
 
$
7,598,850
 
Income tax expense at AUO’s statutory tax rate
 
 
17.00
%
 
 
6,691,813
 
 
17.00
%
 
1,901,603
 
 
17.00
%
 
1,291,804
 
Effect of different subsidiaries income tax rate
 
 
0.89
%
 
 
348,192
 
 
2.55
%
 
285,661
 
 
(21.08)
%
 
(1,601,591)
 
Share of profit of equity-accounted subsidiaries
 
 
(1.80)
%
 
 
(708,417)
 
 
(3.86)
%
 
(432,163)
 
 
(28.84)
%
 
(2,191,605)
 
Effect of changes in statutory income tax rate
 
 
-
 
 
 
-
 
 
-
 
 
-
 
 
4.02
%
 
305,312
 
Effect of change of unrecognized deductible temporary differences, tax losses carryforwards, and investment tax credits
 
 
(27.04)
%
 
 
(10,645,339)
 
 
(9.76)
%
 
(1,091,327)
 
 
24.15
%
 
1,835,311
 
Net of non-taxable income and non-deductible expense
 
 
0.61
%
 
 
241,265
 
 
2.47
%
 
275,706
 
 
0.78
%
 
58,821
 
Loss (gain) from domestic long-term investment
 
 
1.16
%
 
 
457,275
 
 
(1.51)
%
 
(168,484)
 
 
5.41
%
 
411,293
 
Tax on undistributed earnings, net
 
 
7.59
%
 
 
2,987,763
 
 
6.84
%
 
765,419
 
 
6.82
%
 
518,356
 
Adjustments to prior year
 
 
(1.34)
%
 
 
(528,662)
 
 
8.01
%
 
895,861
 
 
(3.14)
%
 
(238,555)
 
Others
 
 
0.08
%
 
 
30,953
 
 
-
 
 
269
 
 
(0.06)
%
 
(4,305)
 
Income tax expense (benefit)
 
 
 
 
 
$
(1,125,157)
 
 
 
 
$
2,432,545
 
 
 
 
$
384,841
 
Effective tax rate
 
 
(2.85)
%
 
 
 
 
 
21.74
%
 
 
 
 
5.06
%
 
 
 
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfInformationAboutIncomeTaxesExpenseBenefitRecognizedDirectlyInOtherComprehensiveIncomeTextBlock (label)
(b)
Income taxes expense (benefit) recognized directly in other comprehensive income for the years ended December 31, 2017, 2016 and 2015 were as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Items that will never be reclassified to profit or loss:
 
 
 
 
 
 
 
 
 
 
Remeasurement of defined benefit obligations
 
$
(155,930)
 
 
-
 
 
(681)
 
Items that are or may be reclassified subsequently to profit or loss:
 
 
 
 
 
 
 
 
 
 
Foreign operations – foreign currency translation differences
 
$
(316,372)
 
 
(230,202)
 
 
(16,050)
 
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfInformationAboutUnusedTaxLossesCarryforwardsTextBlock (label)
As of December 31, 2017, the expiration period for abovementioned unrecognized deferred tax assets of unused tax losses carryforwards were as follows:
 
 
 
Unrecognized deferred tax assets
 
 
 
Year of assessment
 
(in thousands)
 
Expiration in year
 
2009
 
$
427,346
 
2018 ~ 2019
 
2010
 
 
620,885
 
2019
 
2011
 
 
1,313,095
 
2020 ~ 2021
 
2012
 
 
9,583,402
 
2021 ~ 2022
 
2013
 
 
1,723,631
 
2018 ~ 2023
 
2014
 
 
2,058,670
 
2019 ~ 2024
 
2015
 
 
3,851,129
 
2020 ~ 2025
 
2016
 
 
4,100,117
 
2021 ~ 2026
 
2017 (estimated)
 
 
2,190,279
 
2022 ~ 2027
 
 
 
$
25,868,554
 
 
 
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfUnrecognizedDeferredTaxAssetsTextBlock (label)
(f)
Unrecognized deferred tax assets and unrecognized deferred tax liabilities
 
Deferred tax assets have not been recognized in respect of the following items.
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Unused tax losses carryforwards
 
$
25,868,554
 
 
33,392,529
 
Unused investment tax credits
 
 
706,648
 
 
47,268
 
Difference in depreciation expense for tax and financial purposes
 
 
2,104,639
 
 
2,471,376
 
Inventories write-down
 
 
10,328
 
 
536,102
 
Others
 
 
655,974
 
 
3,545,013
 
 
 
$
29,346,143
 
 
39,992,288
 
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfDeferredTaxesExplanatory (label)
(d)
The components of deferred tax assets and liabilities were as follows:
 
 
 
Deferred tax assets
 
Deferred tax liabilities
 
Total
 
 
 
December 31, 2017
 
December 31, 2016
 
December 31, 2017
 
December 31, 2016
 
December 31, 2017
 
December 31, 2016
 
 
 
(in thousands)
 
Investment tax credits
 
$
656,480
 
 
840,112
 
 
-
 
 
-
 
 
656,480
 
 
840,112
 
Tax losses carryforwards
 
 
3,942,012
 
 
-
 
 
-
 
 
-
 
 
3,942,012
 
 
-
 
Unrealized loss and expenses
 
 
284,084
 
 
182,443
 
 
(61,345)
 
 
(3,495)
 
 
222,739
 
 
178,948
 
Inventories write-down
 
 
644,887
 
 
69,938
 
 
-
 
 
-
 
 
644,887
 
 
69,938
 
Foreign investment gains under the equity method
 
 
-
 
 
-
 
 
(890,153)
 
 
(1,091,023)
 
 
(890,153)
 
 
(1,091,023)
 
Remeasurement of defined benefit plans
 
 
155,930
 
 
-
 
 
-
 
 
-
 
 
155,930
 
 
-
 
Foreign operations – foreign currency translation differences
 
 
279,517
 
 
-
 
 
(44,992)
 
 
(81,847)
 
 
234,525
 
 
(81,847)
 
Others
 
 
1,106,104
 
 
644,361
 
 
(641,737)
 
 
(653,899)
 
 
464,367
 
 
(9,538)
 
Deferred tax assets (liabilities)
 
$
7,069,014
 
 
1,736,854
 
 
(1,638,227)
 
 
(1,830,264)
 
 
5,430,787
 
 
(93,410)
 

Fact Table
Network
177 - Disclosure - Earnings per Share (Tables)
(http://auo.com/role/EarningsPerShareTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfDilutedEarningsPerShareTextBlock (label)
Diluted earnings per share for the years ended December 31, 2017, 2016 and 2015 were calculated as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands, except for per share data)
 
Profit attributable to AUO’s shareholders
 
$
42,609,500
 
 
9,965,129
 
 
7,242,170
 
Effect of convertible bonds
 
 
-
 
 
-
 
 
(340,686)
 
Profit used in the computation of diluted earnings per share
 
$
42,609,500
 
 
9,965,129
 
 
6,901,484
 
Weighted-average number of common shares outstanding during the year (including the effect of dilutive potential common stock):
 
 
 
 
 
 
 
 
 
 
Weighted-average number of common shares (basic)
 
 
9,624,245
 
 
9,624,245
 
 
9,624,245
 
Effect of employee remuneration in stock
 
 
347,903
 
 
107,547
 
 
67,731
 
Effect of convertible bonds
 
 
-
 
 
-
 
 
199,894
 
Weighted-average number of common shares (diluted)
 
 
9,972,148
 
 
9,731,792
 
 
9,891,870
 
Diluted earnings per share
 
$
4.27
 
 
1.02
 
 
0.70
 
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:EarningsPerShareExplanatory (label)
Basic earnings per share for the years ended December 31, 2017, 2016 and 2015 were calculated as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands, except for per share data)
 
Profit attributable to AUO’s shareholders
 
$
42,609,500
 
 
9,965,129
 
 
7,242,170
 
Weighted-average number of common shares outstanding during the year (basic)
 
 
9,624,245
 
 
9,624,245
 
 
9,624,245
 
Basic earnings per share
 
$
4.43
 
 
1.04
 
 
0.75
 

Fact Table
Network
178 - Disclosure - Financial Instruments (Tables)
(http://auo.com/role/FinancialInstrumentsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfCarryingAmountAndFairValueOfFinancialInstrumentsTextBlock (label)
Except for aforementioned financial instruments, the carrying amount and fair value of other financial instruments of the Company as of December 31, 2017 and 2016 were as follows:
 
 
 
December 31, 2017
 
December 31, 2016
 
 
 
Carrying Amount
 
Fair Value
 
Carrying Amount
 
Fair Value
 
 
 
(in thousands)
 
Financial assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
Financial assets at fair value through profit or loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts
 
$
70,366
 
 
70,366
 
 
65,669
 
 
65,669
 
Available-for-sale financial assets – noncurrent
 
 
4,348,134
 
 
4,348,134
 
 
3,030,278
 
 
3,030,278
 
Loans and receivables:
 
 
 
 
 
 
 
 
 
 
 
 
 
Long-term receivables
 
$
1,790,400
 
 
1,790,400
 
 
1,974,271
 
 
1,974,271
 
Refundable deposits
 
 
515,148
 
 
515,148
 
 
133,221
 
 
133,221
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Financial liabilities:
 
 
 
 
 
 
 
 
 
 
 
 
 
Financial liabilities at fair value through profit or loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts
 
 
106,597
 
 
106,597
 
 
896,998
 
 
896,998
 
Derivative financial liabilities for hedging:
 
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate swap contracts
 
 
-
 
 
-
 
 
3,540
 
 
3,540
 
Financial liabilities measured at amortized cost:
 
 
 
 
 
 
 
 
 
 
 
 
 
Long-term borrowings (including current installments)
 
 
110,608,010
 
 
110,608,010
 
 
124,262,620
 
 
124,262,620
 
Guarantee deposits received
 
 
838,482
 
 
838,482
 
 
838,263
 
 
838,263
 
 
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfChangesInLevel3FairValueMeasurementTextBlock (label)
Changes in Level 3 fair value measurements for the years ended December 31, 2017, 2016 and 2015 were as follows:
 
 
 
Available-for-sale financial assets without quoted market prices
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Balance at the beginning of the year
 
$
193,582
 
 
70,938
 
 
37,345
 
Net realized/unrealized gains (losses) included in:
 
 
 
 
 
 
 
 
 
 
Profit or loss(i)
 
 
(30,000)
 
 
(686)
 
 
99,517
 
Other comprehensive income
 
 
-
 
 
-
 
 
-
 
Purchases
 
 
14,233
 
 
66,948
 
 
33,593
 
Transfer in
 
 
-
 
 
56,400
 
 
-
 
Disposals
 
 
-
 
 
-
 
 
(99,517)
 
Effect of change in exchange rate
 
 
-
 
 
(18)
 
 
-
 
Balance at the end of the year
 
$
177,815
 
 
193,582
 
 
70,938
 
 
(i)
Change in unrealized losses, which were included in profit or loss, relating to those available-for-sale assets without quoted market prices held at December 31, 2017, 2016 and 2015 were $30,000 thousand, $686 thousand and nil, respectively.
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfFairValueMeasurementOfAssetsAndLiabilitiesOnRecurringBasisTextBlock (label)
Financial assets and liabilities measured at fair value on a recurring basis were as follows:
 
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
 
 
(in thousands)
 
December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
 
Financial assets at fair value through profit or loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts
 
$
-
 
 
70,366
 
 
-
 
 
70,366
 
Available-for-sale financial assets – noncurrent
 
 
4,170,319
 
 
-
 
 
177,815
 
 
4,348,134
 
Loans and receivables:
 
 
 
 
 
 
 
 
 
 
 
 
 
Long-term receivables
 
 
-
 
 
1,790,400
 
 
-
 
 
1,790,400
 
Financial liabilities at fair value through profit or loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts
 
 
-
 
 
106,597
 
 
-
 
 
106,597
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
Financial assets at fair value through profit or loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts
 
$
-
 
 
65,669
 
 
-
 
 
65,669
 
Available-for-sale financial assets – noncurrent
 
 
2,836,696
 
 
-
 
 
193,582
 
 
3,030,278
 
Loans and receivables:
 
 
 
 
 
 
 
 
 
 
 
 
 
Long-term receivables
 
 
-
 
 
1,974,271
 
 
-
 
 
1,974,271
 
Financial liabilities at fair value through profit or loss:
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts
 
 
-
 
 
896,998
 
 
-
 
 
896,998
 
Derivative financial liabilities for hedging:
 
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate swap contracts
 
 
-
 
 
3,540
 
 
-
 
 
3,540
 

Fact Table
Network
179 - Disclosure - Financial Risk Management (Tables)
(http://auo.com/role/FinancialRiskManagementTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Currency risk [member]auo:DisclosureOfDetailedInformationAboutExposureToForeignCurrencyRiskTextBlock (label)
The Company’s significant exposure to foreign currency risk was as follows:
 
 
 
Foreign currency amounts
 
Exchange
rate
 
NTD
 
 
 
(in thousands)
 
 
 
 
(in thousands)
 
December 31, 2017
 
 
 
 
 
 
 
 
 
 
Financial assets
 
 
 
 
 
 
 
 
 
 
Monetary items
 
 
 
 
 
 
 
 
 
 
USD
 
$
2,084,406
 
 
29.840
 
 
62,198,675
 
JPY
 
 
10,228,194
 
 
0.2644
 
 
2,704,334
 
EUR
 
 
46,517
 
 
35.632
 
 
1,657,494
 
Non-monetary items
 
 
 
 
 
 
 
 
 
 
USD
 
 
3,300
 
 
29.840
 
 
98,472
 
RMB
 
 
19,426
 
 
4.5697
 
 
88,771
 
 
 
 
Foreign currency amounts
 
Exchange
rate
 
NTD
 
 
 
(in thousands)
 
 
 
 
(in thousands)
 
Financial liabilities
 
 
 
 
 
 
 
 
 
 
Monetary items
 
 
 
 
 
 
 
 
 
 
USD
 
 
1,048,371
 
 
29.840
 
 
31,283,391
 
JPY
 
 
27,100,546
 
 
0.2644
 
 
7,165,384
 
EUR
 
 
418
 
 
35.632
 
 
14,894
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2016
 
 
 
 
 
 
 
 
 
 
Financial assets
 
 
 
 
 
 
 
 
 
 
Monetary items
 
 
 
 
 
 
 
 
 
 
USD
 
$
2,287,148
 
 
32.312
 
 
73,902,326
 
JPY
 
 
20,236,416
 
 
0.2773
 
 
5,611,558
 
EUR
 
 
106,660
 
 
33.895
 
 
3,615,241
 
Non-monetary items
 
 
 
 
 
 
 
 
 
 
USD
 
 
3,000
 
 
32.312
 
 
96,936
 
RMB
 
 
20,758
 
 
4.6391
 
 
96,298
 
 
 
 
 
 
 
 
 
 
 
 
Financial liabilities
 
 
 
 
 
 
 
 
 
 
Monetary items
 
 
 
 
 
 
 
 
 
 
USD
 
 
1,099,799
 
 
32.312
 
 
35,536,705
 
JPY
 
 
26,820,343
 
 
0.2773
 
 
7,437,281
 
EUR
 
 
987
 
 
33.895
 
 
33,454
 
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Risks [member]auo:ScheduleOfMaturityAnalysisForFinancialLiabilitiesTextBlock (label)
The following, except for payables (including related parties) and equipment and construction payable, are the contractual maturities of other financial liabilities. The amounts include estimated interest payments (except for short-term borrowings) but exclude the impact of netting agreements.
 
 
 
Contractual cash
flows
 
2018.1.1~
2018.12.31
 
2019.1.1~
2020.12.31
 
2021.1.1~
2022.12.31
 
2023 and
thereafter
 
 
 
(in thousands)
 
December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Non-derivative financial liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Short-term borrowings
 
$
3,424,376
 
 
3,424,376
 
 
-
 
 
-
 
 
-
 
Long-term borrowings (including current installments)
 
 
119,344,944
 
 
10,941,692
 
 
68,455,501
 
 
33,892,568
 
 
6,055,183
 
Refundable deposits
 
 
838,482
 
 
33,510
 
 
9,902
 
 
-
 
 
795,070
 
Derivative financial instruments
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts – inflows
 
 
(22,124,574)
 
 
(22,124,574)
 
 
-
 
 
-
 
 
-
 
Foreign currency forward contracts – outflows
 
 
22,170,245
 
 
22,170,245
 
 
-
 
 
-
 
 
-
 
 
 
$
123,653,473
 
 
14,445,249
 
 
68,465,403
 
 
33,892,568
 
 
6,850,253
 
 
 
 
Contractual cash
flows
 
2017.1.1~
2017.12.31
 
2018.1.1~
2019.12.31
 
2020.1.1~
2021.12.31
 
2022 and
thereafter
 
 
 
(in thousands)
 
December 31, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Non-derivative financial liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Short-term borrowings
 
$
526,723
 
 
526,723
 
 
-
 
 
-
 
 
-
 
Long-term borrowings (including current installments)
 
 
133,125,692
 
 
21,116,908
 
 
75,423,482
 
 
27,662,194
 
 
8,923,108
 
Refundable deposits
 
 
838,263
 
 
75,970
 
 
3,078
 
 
7,275
 
 
751,940
 
Derivative financial instruments
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward contracts – inflows
 
 
(37,819,838)
 
 
(37,819,838)
 
 
-
 
 
-
 
 
-
 
Foreign currency forward contracts – outflows
 
 
38,625,310
 
 
38,625,310
 
 
-
 
 
-
 
 
-
 
Interest rate swap contracts
 
 
3,446
 
 
3,446
 
 
-
 
 
-
 
 
-
 
 
 
$
135,299,596
 
 
22,528,519
 
 
75,426,560
 
 
27,669,469
 
 
9,675,048
 
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Risks [member]auo:ScheduleOfSensitivityAnalysisOfCurrencyRiskTextBlock (label)
Depreciation or appreciation of the NTD by 1% against the USD, EUR and JPY at December 31, 2017 and 2016, while all other variables were remained constant, would have increased or decreased the net profit before tax for the years ended December 31, 2017 and 2016 as follows:
 
 
 
For the years ended
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
1% of depreciation
 
$
280,968
 
 
401,217
 
1% of appreciation
 
 
(280,968)
 
 
(401,217)
 

Fact Table
Network
180 - Disclosure - Capital Management (Tables)
(http://auo.com/role/CapitalManagementTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfInformationAboutCapitalManagementTextBlock (label)
The Company aims to enhance the returns of its shareholders through achieving an optimized debt-to-equity ratio from time to time.
 
 
 
December 31,
 
 
 
2017
 
 
2016
 
 
 
(in thousands)
 
Total liabilities
 
$
217,352,838
 
 
 
229,024,452
 
Total equity
 
 
212,817,851
 
 
 
176,836,313
 
Interest-bearing debts
 
 
114,032,386
 
 
 
124,789,343
 
Debt-to-equity ratio
 
 
102
%
 
 
130
%
Interest-bearing debt-to-equity ratio
 
 
54
%
 
 
71
%
Net debt-to-equity ratio(1)
 
 
4
%
 
 
25
%
 
(1) Net debt-to-equity ratio is defined as interest-bearing debts less cash and cash equivalents divided by total equity.

Fact Table
Network
181 - Disclosure - Related-party Transactions (Tables)
(http://auo.com/role/RelatedpartyTransactionsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfAcquisitionPropertyPlantAndEquipmentInRelatedPartyTransactionsTextBlock (label)
(3)
Acquisition of property, plant and equipment
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Associates(1)
 
$
1,549
 
 
7,391
 
 
368,171
 
Others(1)
 
 
2,801
 
 
-
 
 
326
 
 
 
$
4,350
 
 
7,391
 
 
368,497
 
 
 
(1)
In May 2015, the Company ceased having significant influence over Qisda, as such Qisda was no longer an associate. However, Qisda and its subsidiaries still remained as a related party and the related transaction amounts starting from June 2015 are included in the “Others” category.
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfDisposalOfPropertyPlantAndEquipmentInRelatedPartyTransactionsTextBlock (label)
(4)
Disposal of property, plant and equipment and others
 
 
 
Proceeds from disposal
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Associates(1)
 
$
-
 
 
926
 
 
-
 
Joint ventures
 
 
-
 
 
-
 
 
8
 
Others(1)
 
 
3,352
 
 
-
 
 
1,790
 
 
 
$
3,352
 
 
926
 
 
1,798
 
 
 
(1)
In May 2015, the Company ceased having significant influence over Qisda, as such Qisda was no longer an associate. However, Qisda and its subsidiaries still remained as a related party and the related transaction amounts starting from June 2015 are included in the “Others” category.
 
 
 
Gains on disposal
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Associates(1)
 
$
-
 
 
22
 
 
-
 
Joint ventures
 
 
-
 
 
-
 
 
8
 
Others(1)
 
 
2,212
 
 
-
 
 
36
 
 
 
$
2,212
 
 
22
 
 
44
 
 
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfOtherRelatedPartyTransactionsTextBlock (label)
(5)
Other related party transactions
 
 
 
Other receivables due from
related parties
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Associates(1)
 
$
47,746
 
 
10,970
 
Others(1)
 
 
6,347
 
 
23,318
 
 
 
$
54,093
 
 
34,288
 
 
 
 
Other payables due to related parties (including equipment payable)
 
 
 
December 31,
 
 
 
2017
 
2016
 
 
 
(in thousands)
 
Associates(1)
 
$
9,009
 
 
16,218
 
Joint ventures
 
 
292
 
 
406
 
Others(1)
 
 
15,137
 
 
10,717
 
 
 
$
24,438
 
 
27,341
 
 
 
 
Rental income
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Associates(1)
 
$
48,223
 
 
31,858
 
 
61,159
 
Joint ventures
 
 
6,611
 
 
6,611
 
 
6,659
 
Others(1)
 
 
82,427
 
 
90,032
 
 
47,271
 
 
 
$
137,261
 
 
128,501
 
 
115,089
 
 
 
 
Administration and other income
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Associates(1)
 
$
14,311
 
 
15,083
 
 
21,132
 
Joint ventures
 
 
-
 
 
8,301
 
 
11,538
 
Others(1)
 
 
9,246
 
 
5,174
 
 
2,889
 
 
 
$
23,557
 
 
28,558
 
 
35,559
 
 
 
 
Rental and other expenses
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Associates(1)
 
$
28,017
 
 
36,499
 
 
104,415
 
Joint ventures
 
 
1,389
 
 
21,821
 
 
1,168
 
Others(1)
 
 
35,040
 
 
55,131
 
 
40,546
 
 
 
$
64,446
 
 
113,451
 
 
146,129
 
 
(1)
In May 2015, the Company ceased having significant influence over Qisda, as such Qisda was no longer an associate. However, Qisda and its subsidiaries still remained as a related party and the related transaction amounts starting from June 2015 are included in the “Others” category.
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfPurchasesTransactionsBetweenRelatedPartiesTextBlock (label)
(2)
Purchases
 
 
 
Purchases
 
Accounts payable to related parties
 
 
 
For the years ended December 31,
 
December 31,
 
 
 
2017
 
2016
 
2015
 
2017
 
2016
 
 
 
(in thousands)
 
Associates(1)
 
$
8,667,555
 
 
9,886,487
 
 
19,563,609
 
 
3,233,050
 
 
3,734,927
 
Joint ventures
 
 
1,057,106
 
 
3,754,404
 
 
4,786,344
 
 
-
 
 
-
 
Others(1)
 
 
17,549,228
 
 
18,317,386
 
 
10,587,095
 
 
4,431,681
 
 
5,088,138
 
 
 
$
27,273,889
 
 
31,958,277
 
 
34,937,048
 
 
7,664,731
 
 
8,823,065
 
 
 
(1)
In May 2015, the Company ceased having significant influence over Qisda, as such Qisda was no longer an associate. However, Qisda and its subsidiaries still remained as a related party and the related transaction amounts starting from June 2015 are included in the “Others” category.
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory (label)
Key management personnel’s compensation comprised:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(in thousands)
 
Short-term employee benefits
 
$
566,231
 
 
354,883
 
 
365,310
 
Post-employment benefits
 
 
2,244
 
 
1,937
 
 
2,168
 
 
 
$
568,475
 
 
356,820
 
 
367,478
 
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory (label)
(1)
Sales
 
 
 
Sales
 
Accounts receivable
from related parties
 
 
 
For the years ended December 31,
 
December 31,
 
 
 
2017
 
2016
 
2015
 
2017
 
2016
 
 
 
(in thousands)
 
Associates(1)
 
$
1,216,868
 
 
554,889
 
 
8,745,681
 
 
184,948
 
 
58,755
 
Joint ventures
 
 
-
 
 
4,105,390
 
 
5,453,152
 
 
-
 
 
-
 
Others(1)
 
 
11,959,720
 
 
12,767,161
 
 
6,005,175
 
 
1,668,114
 
 
2,474,469
 
 
 
$
13,176,588
 
 
17,427,440
 
 
20,204,008
 
 
1,853,062
 
 
2,533,224
 
 
 
(1)
In May 2015, the Company ceased having significant influence over Qisda, as such Qisda was no longer an associate. However, Qisda and its subsidiaries still remained as a related party and the related transaction amounts starting from June 2015 are included in the “Others” category.

Fact Table
Network
182 - Disclosure - Pledged Assets (Tables)
(http://auo.com/role/PledgedAssetsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfAssetsPledgedAsCollateralTextBlock (label)
The carrying amounts of the assets which the Company pledged as collateral were as follows:
 
 
 
 
 
December 31,
 
Pledged assets
 
Pledged to secure
 
2017
 
2016
 
 
 
 
 
(in thousands)
 
Restricted cash in banks(i)
 
R&;D projects, oil purchases and guarantees for foreign labors and customs duties
 
$
87,105
 
 
93,379
 
Land and building
 (including investment property)
 
Long-term borrowings
 
 
42,031,020
 
 
52,076,840
 
Machinery, equipment and prepayments for equipment
 
Long-term borrowings
 
 
17,143,591
 
 
27,058,442
 
 
 
 
 
$
59,261,716
 
 
79,228,661
 
(i) Classified as other current financial assets and other noncurrent assets by its liquidity.

Fact Table
Network
183 - Disclosure - Contingent Liabilities and Commitments (Tables)
(http://auo.com/role/ContingentLiabilitiesAndCommitmentsTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ScheduleOfOutstandingLettersOfCreditTableTextBlock (label)
As at December 31, 2017, the Company had the following outstanding letters of credit for the purpose of purchasing machinery and equipment and materials:
 
Currency
 
 
December 31,
2017
 
 
 
 
(in thousands)
 
USD
 
 
 
15,029
 
JPY
 
 
 
2,761,778
 

Fact Table
Network
184 - Disclosure - Segment, Geographic and Revenue Information (Tables)
(http://auo.com/role/SegmentGeographicAndRevenueInformationTables)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfGeographicalAreasExplanatory (label)
(1)
Net revenue from external customers
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
Region
 
(in thousands)
 
PRC
 
$
125,341,648
 
 
115,110,137
 
 
123,476,526
 
Taiwan
 
 
108,288,387
 
 
104,059,325
 
 
119,626,443
 
Japan
 
 
32,739,262
 
 
33,346,041
 
 
37,903,886
 
Singapore
 
 
35,939,290
 
 
31,776,305
 
 
30,210,618
 
Others
 
 
38,719,680
 
 
44,797,228
 
 
49,129,021
 
 
 
$
341,028,267
 
 
329,089,036
 
 
360,346,494
 
 
(2)
Consolidated noncurrent assets(ii)
 
 
 
December 31,
 
 
 
2017
 
2016
 
Region
 
(in thousands)
 
Taiwan
 
$
154,097,271
 
 
148,829,366
 
PRC
 
 
67,846,109
 
 
68,356,214
 
Others
 
 
11,037,333
 
 
15,383,473
 
 
 
$
232,980,713
 
 
232,569,053
 
 
(ii)
Noncurrent assets are not inclusive of financial instruments, deferred tax assets, and prepaid pension.
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfOperatingSegmentsExplanatory (label)
The Company’s operating segment information for the years ended December 31, 2017, 2016 and 2015 was as follows:
 
 
 
For the year ended December 31, 2017
 
 
 
Display
 
Solar
 
Total
segments
 
 
 
(in thousands)
 
Net revenue from external customers
 
$
322,335,330
 
 
18,692,937
 
 
341,028,267
 
Depreciation and amortization
 
$
34,816,463
 
 
1,613,373
 
 
36,429,836
 
Inventory write-down
 
$
3,423,097
 
 
333,629
 
 
3,756,726
 
Segment profit (loss)(i)
 
$
39,971,375
 
 
(832,251)
 
 
39,139,124
 
Other income
 
 
 
 
 
 
 
 
3,829,897
 
Other gains and losses
 
 
 
 
 
 
 
 
(976,560)
 
Finance costs
 
 
 
 
 
 
 
 
(2,867,861)
 
Share of profit of equity-accounted investees
 
 
 
 
 
 
 
 
239,006
 
Consolidated profit before income tax
 
 
 
 
 
 
 
$
39,363,606
 
 
 
 
For the year ended December 31, 2016
 
 
 
Display
 
Solar
 
Total
segments
 
 
 
(in thousands)
 
Net revenue from external customers
 
$
304,826,682
 
 
24,262,354
 
 
329,089,036
 
Depreciation and amortization
 
$
37,860,430
 
 
1,832,810
 
 
39,693,240
 
Inventory write-down
 
$
3,288,067
 
 
385,146
 
 
3,673,213
 
Segment profit (loss)(i)
 
$
12,703,548
 
 
(365,092)
 
 
12,338,456
 
Other income
 
 
 
 
 
 
 
 
2,380,228
 
Other gains and losses
 
 
 
 
 
 
 
 
(925,673)
 
Finance costs
 
 
 
 
 
 
 
 
(2,707,887)
 
Share of profit of equity-accounted investees
 
 
 
 
 
 
 
 
100,778
 
Consolidated profit before income tax
 
 
 
 
 
 
 
$
11,185,902
 
 
 
 
For the year ended December 31, 2015
 
 
 
Display
 
Solar
 
Total
segments
 
 
 
(in thousands)
 
Net revenue from external customers
 
$
333,392,294
 
 
26,954,200
 
 
360,346,494
 
Depreciation and amortization
 
$
44,790,075
 
 
2,955,774
 
 
47,745,849
 
Inventory write-down
 
$
5,607,166
 
 
54,100
 
 
5,661,266
 
Segment profit (loss)(i)
 
$
19,225,952
 
 
(1,704,804)
 
 
17,521,148
 
Other income
 
 
 
 
 
 
 
 
2,197,593
 
Other gains and losses
 
 
 
 
 
 
 
 
(9,978,320)
 
Finance costs
 
 
 
 
 
 
 
 
(2,591,023)
 
Share of profit of equity-accounted investees
 
 
 
 
 
 
 
 
449,452
 
Consolidated profit before income tax
 
 
 
 
 
 
 
$
7,598,850
 
 
(i)
There were no intersegment revenues or other transactions between operating segments for the years ended December 31, 2017, 2016 and 2015.
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfProductsAndServicesExplanatory (label)
The consolidated net revenue by principal products was as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
(in thousands)
 
Products for Televisions
 
$
152,442,198
 
 
140,519,923
 
 
159,534,820
 
Products for Mobile PCs
 
 
56,209,501
 
 
52,721,494
 
 
52,488,064
 
Products for Mobile Devices
 
 
14,858,803
 
 
14,170,637
 
 
23,622,445
 
Products for Monitors
 
 
45,696,144
 
 
44,668,054
 
 
48,234,547
 
Products for Commercial and Others(iii)
 
 
53,128,684
 
 
52,746,574
 
 
49,512,418
 
Solar Products
 
 
18,692,937
 
 
24,262,354
 
 
26,954,200
 
Total
 
$
341,028,267
 
 
329,089,036
 
 
360,346,494
 
 
(iii)
Others include sales from products for other applications and sales of raw materials, components and from service charges.
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DisclosureOfSegmentsMajorCustomersExplanatory (label)
For the years ended December 31, 2017, 2016 and 2015, sales to individual customers representing greater than 10% of consolidated net revenue were as follows:
 
 
 
For the years ended December 31,
 
 
 
2017
 
%
 
2016
 
%
 
2015
 
%
 
 
 
(in thousands)
 
Customer A
 
$
43,645,518
 
 
13
 
 
37,306,348
 
 
11
 
 
42,173,089
 
 
12
 

Fact Table
Network
185 - Disclosure - Summary of Significant Accounting Policies (Details)
(http://auo.com/role/SummaryOfSignificantAccountingPoliciesDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ACTW [Member] * auo:MalaysiaMember (label) * auo:AuoCrystalMalaysiaSdnBhdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * auo:SingaporeMember (label) * auo:AfpdPteLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
30001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB and DPTW [Member] * auo:MalaysiaMember (label) * auo:BriviewXiamenCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
40001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * United States [Member] * auo:AuOptronicsCorporationAmericaMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * auo:JapanMember (label) * auo:AuOptronicsCorporationJapanMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * auo:CzechRepublicMember (label) * auo:AuOptronicsCzechSroMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * Netherlands [Member] * auo:AuOptronicsEuropeBvMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * South Korea [Member] * auo:AuOptronicsKoreaLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
90001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * auo:PrcMember (label) * auo:AuOptronicsKunshanCoLtdMember (label)Proportion of ownership interest in subsidiary0.51xbrli:pure4
100001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * auo:PrcMember (label) * auo:AuOptronicsManufacturingShanghaiCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * auo:PrcMember (label) * auo:AuOptronicsShanghaiCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
120001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * auo:SingaporeMember (label) * auo:AuOptronicsSingaporePteLtdAusgMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
130001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * Slovakia Republic [Member] * auo:AuOptronicsSlovakiaSroMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * auo:PrcMember (label) * auo:AuOptronicsSuzhouCorpLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
150001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * auo:PrcMember (label) * auo:AuOptronicsXiamenCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
160001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AULB [Member] * United States [Member] * auo:AuVistaIncMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AUSH [Member] * auo:PrcMember (label) * auo:AuoCareManagementMember (label)Proportion of ownership interest in subsidiary0xbrli:pure0
180001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AUO, Konly and Ronly [Member] * Taiwan ROC [Member] * auo:AuoCrystalCorpMember (label)Proportion of ownership interest in subsidiary0.9631xbrli:pure4
190001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AUSG [Member] * auo:PrcMember (label) * auo:AuoEnergyTianjinCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AUSG [Member] * United States [Member] * auo:AuoGreenEnergyAmericaCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
210001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AUSG [Member] * Netherlands [Member] * auo:AuoGreenEnergyEuropeBvAenlMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
220001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AUO, Konly and Ronly [Member] * Taiwan ROC [Member] * auo:DarwinPrecisionsMember (label)Proportion of ownership interest in subsidiary0.5104xbrli:pure4
230001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AUO, Konly and Ronly [Member] * Taiwan ROC [Member] * auo:SandaMaterialsCorporationMember (label)Proportion of ownership interest in subsidiary0.9999xbrli:pure4
240001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AUO [Member] * auo:MalaysiaMember (label) * auo:AuOptronicsLCorpAulbMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
250001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AUO [Member] * Taiwan ROC [Member] * auo:KonlyVentureCorpKonlyMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
260001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AUO [Member] * Taiwan ROC [Member] * auo:RonlyVentureCorpRonlyMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
270001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AUO [Member] * Taiwan ROC [Member] * auo:SpaceMoneyIncMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
280001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AUO [Member] * Taiwan ROC [Member] * auo:UfreshTechnologyIncUtiMember (label)Proportion of ownership interest in subsidiary0xbrli:pure0
290001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AUXM [Member] * auo:PrcMember (label) * auo:BriviewLCorpBvlbMember (label)Proportion of ownership interest in subsidiary1xbrli:pure0
300001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31BVLB [Member] * auo:PrcMember (label) * auo:BriviewHefeiCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
310001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31DPTW [Member] * BVI [Member] * auo:ForceInternationalHoldingLtdFrviMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
320001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31DPTW [Member] * BVI [Member] * auo:ForhouseInternationalMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
330001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Konly [Member] * Taiwan ROC [Member] * auo:ChampiongenPowerCorporationCgpcMember (label)Proportion of ownership interest in subsidiary0xbrli:pure0
340001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31DPHK [Member] * auo:PrcMember (label) * auo:DarwinPrecisionsChengduCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
350001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31DPTW [Member] * auo:MalaysiaMember (label) * auo:DarwinPrecisionsCorporationMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
360001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31DPLB [Member] * Hong Kong [Member] * auo:DarwinPrecisionsHongKongLimitedDphkMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
370001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31DPLB [Member] * Slovakia Republic [Member] * auo:DarwinPrecisionsSlovakiaSroMember (label)Proportion of ownership interest in subsidiary1xbrli:pure0
380001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31DPHK [Member] * auo:PrcMember (label) * auo:DarwinPrecisionsSuzhouCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
390001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31DPHK [Member] * auo:PrcMember (label) * auo:DarwinPrecisionsXiamenCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
400001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Konly [Member] * Taiwan ROC [Member] * auo:FargenPowerCorporationMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
410001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31FFMI [Member] * auo:PrcMember (label) * auo:ForthouseElectronicsSuzhouCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
420001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31FHVI [Member] * Mauritius [Member] * auo:FortechInternationalCorpFtmiMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
430001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31FHVI [Member] * Samoa [Member] * auo:ForwardOptronicsInternationalCorpFwsaMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
440001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31FHVI [Member] * Mauritius [Member] * auo:FullLuckPrecisionMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
450001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31FHVI [Member] * Samoa [Member] * auo:PrimeForwardMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
460001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31FLMI [Member] * auo:PrcMember (label) * auo:FullLuckWujiangPrecisionsCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
470001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31FRVI [Member] * Mauritius [Member] * auo:ForefrontMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
480001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31PMSA [Member] * auo:PrcMember (label) * auo:FortechElectronicsKunshanCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
490001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31FTMI [Member] * auo:PrcMember (label) * auo:FortechElectronicsSuzhouCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
500001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31FTMI [Member] * auo:PrcMember (label) * auo:FortechOptronicsXiamenCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
510001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31FWSA and FTMI [Member] * auo:PrcMember (label) * auo:SuzhouForplaxOptronicsCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
520001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31SDMC [Member] * auo:JapanMember (label) * auo:MsetekCoLtdMember (label)Proportion of ownership interest in subsidiary0.999991xbrli:pure6
530001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Konly [Member] * Taiwan ROC [Member] * auo:LigenPowerCorporationMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
540001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Konly [Member] * Taiwan ROC [Member] * auo:TrongenPowerCorporationMember (label)Proportion of ownership interest in subsidiary1xbrli:pure0
550001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ACTW [Member] * auo:MalaysiaMember (label) * auo:AuoCrystalMalaysiaSdnBhdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
560001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * auo:SingaporeMember (label) * auo:AfpdPteLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
570001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB and DPTW [Member] * auo:MalaysiaMember (label) * auo:BriviewXiamenCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
580001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * United States [Member] * auo:AuOptronicsCorporationAmericaMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
590001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * auo:JapanMember (label) * auo:AuOptronicsCorporationJapanMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
600001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * auo:CzechRepublicMember (label) * auo:AuOptronicsCzechSroMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
610001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * Netherlands [Member] * auo:AuOptronicsEuropeBvMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
620001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * South Korea [Member] * auo:AuOptronicsKoreaLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
630001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * auo:PrcMember (label) * auo:AuOptronicsKunshanCoLtdMember (label)Proportion of ownership interest in subsidiary0.51xbrli:pure4
640001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * auo:PrcMember (label) * auo:AuOptronicsManufacturingShanghaiCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
650001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * auo:PrcMember (label) * auo:AuOptronicsShanghaiCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
660001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * auo:SingaporeMember (label) * auo:AuOptronicsSingaporePteLtdAusgMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
670001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * Slovakia Republic [Member] * auo:AuOptronicsSlovakiaSroMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
680001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * auo:PrcMember (label) * auo:AuOptronicsSuzhouCorpLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
690001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * auo:PrcMember (label) * auo:AuOptronicsXiamenCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
700001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AULB [Member] * United States [Member] * auo:AuVistaIncMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
710001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AUSH [Member] * auo:PrcMember (label) * auo:AuoCareManagementMember (label)Proportion of ownership interest in subsidiary1xbrli:pure0
720001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AUO, Konly and Ronly [Member] * Taiwan ROC [Member] * auo:AuoCrystalCorpMember (label)Proportion of ownership interest in subsidiary0.9603xbrli:pure4
730001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AUSG [Member] * auo:PrcMember (label) * auo:AuoEnergyTianjinCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
740001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AUSG [Member] * United States [Member] * auo:AuoGreenEnergyAmericaCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
750001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AUSG [Member] * Netherlands [Member] * auo:AuoGreenEnergyEuropeBvAenlMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
760001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AUO, Konly and Ronly [Member] * Taiwan ROC [Member] * auo:DarwinPrecisionsMember (label)Proportion of ownership interest in subsidiary0.4105xbrli:pure4
770001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AUO, Konly and Ronly [Member] * Taiwan ROC [Member] * auo:SandaMaterialsCorporationMember (label)Proportion of ownership interest in subsidiary0.9999xbrli:pure4
780001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AUO [Member] * auo:MalaysiaMember (label) * auo:AuOptronicsLCorpAulbMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
790001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AUO [Member] * Taiwan ROC [Member] * auo:KonlyVentureCorpKonlyMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
800001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AUO [Member] * Taiwan ROC [Member] * auo:RonlyVentureCorpRonlyMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
810001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AUO [Member] * Taiwan ROC [Member] * auo:SpaceMoneyIncMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
820001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AUO [Member] * Taiwan ROC [Member] * auo:UfreshTechnologyIncUtiMember (label)Proportion of ownership interest in subsidiary1xbrli:pure0
830001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AUXM [Member] * auo:PrcMember (label) * auo:BriviewLCorpBvlbMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
840001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31BVLB [Member] * auo:PrcMember (label) * auo:BriviewHefeiCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
850001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31DPTW [Member] * BVI [Member] * auo:ForceInternationalHoldingLtdFrviMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
860001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31DPTW [Member] * BVI [Member] * auo:ForhouseInternationalMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
870001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Konly [Member] * Taiwan ROC [Member] * auo:ChampiongenPowerCorporationCgpcMember (label)Proportion of ownership interest in subsidiary1xbrli:pure0
880001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31DPHK [Member] * auo:PrcMember (label) * auo:DarwinPrecisionsChengduCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
890001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31DPTW [Member] * auo:MalaysiaMember (label) * auo:DarwinPrecisionsCorporationMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
900001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31DPLB [Member] * Hong Kong [Member] * auo:DarwinPrecisionsHongKongLimitedDphkMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
910001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31DPLB [Member] * Slovakia Republic [Member] * auo:DarwinPrecisionsSlovakiaSroMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
920001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31DPHK [Member] * auo:PrcMember (label) * auo:DarwinPrecisionsSuzhouCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
930001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31DPHK [Member] * auo:PrcMember (label) * auo:DarwinPrecisionsXiamenCorpMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
940001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Konly [Member] * Taiwan ROC [Member] * auo:FargenPowerCorporationMember (label)Proportion of ownership interest in subsidiary0xbrli:pure0
950001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31FFMI [Member] * auo:PrcMember (label) * auo:ForthouseElectronicsSuzhouCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
960001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31FHVI [Member] * Mauritius [Member] * auo:FortechInternationalCorpFtmiMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
970001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31FHVI [Member] * Samoa [Member] * auo:ForwardOptronicsInternationalCorpFwsaMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
980001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31FHVI [Member] * Mauritius [Member] * auo:FullLuckPrecisionMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
990001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31FHVI [Member] * Samoa [Member] * auo:PrimeForwardMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
1000001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31FLMI [Member] * auo:PrcMember (label) * auo:FullLuckWujiangPrecisionsCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
1010001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31FRVI [Member] * Mauritius [Member] * auo:ForefrontMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
1020001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31PMSA [Member] * auo:PrcMember (label) * auo:FortechElectronicsKunshanCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
1030001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31FTMI [Member] * auo:PrcMember (label) * auo:FortechElectronicsSuzhouCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
1040001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31FTMI [Member] * auo:PrcMember (label) * auo:FortechOptronicsXiamenCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
1050001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31FWSA and FTMI [Member] * auo:PrcMember (label) * auo:SuzhouForplaxOptronicsCoLtdMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
1060001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31SDMC [Member] * auo:JapanMember (label) * auo:MsetekCoLtdMember (label)Proportion of ownership interest in subsidiary0.999991xbrli:pure6
1070001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Konly [Member] * Taiwan ROC [Member] * auo:LigenPowerCorporationMember (label)Proportion of ownership interest in subsidiary1.0xbrli:pure2
1080001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Konly [Member] * Taiwan ROC [Member] * auo:TrongenPowerCorporationMember (label)Proportion of ownership interest in subsidiary0xbrli:pure0

Fact Table
Network
186 - Disclosure - Summary of Significant Accounting Policies (Details Textual)
(http://auo.com/role/SummaryOfSignificantAccountingPoliciesDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for business combinations [member] * Entity's total for related parties [member] * Property, Plant and Equipment [Member] * Equity [Member] * Geographical areas [member] * Ranges [member]ifrs-full:ApplicableTaxRate (label)0.17xbrli:pure2
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for business combinations [member] * Entity's total for related parties [member] * Property, Plant and Equipment [Member] * Equity [Member] * Geographical areas [member] * Ranges [member]ifrs-full:ApplicableTaxRate (label)0.17xbrli:pure2
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for business combinations [member] * Entity's total for related parties [member] * Property, Plant and Equipment [Member] * Equity [Member] * Geographical areas [member] * Ranges [member]ifrs-full:ApplicableTaxRate (label)0.17xbrli:pure2
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for business combinations [member] * Entity's total for related parties [member] * Property, Plant and Equipment [Member] * Additional corporate income tax rate on undistributed earnings [Member] * ROC [Member] * Ranges [member]ifrs-full:ApplicableTaxRate (label)0.1xbrli:pure1
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for business combinations [member] * Entity's total for related parties [member] * Property, Plant and Equipment [Member] * Equity [Member] * Geographical areas [member] * Ranges [member]Useful lives or amortisation rates, intangible assets other than goodwill3 to 20 years
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for business combinations [member] * Entity's total for related parties [member] * Buildings [member] * Equity [Member] * Geographical areas [member] * Ranges [member]Useful lives or depreciation rates, property, plant and equipment20~50 years
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for business combinations [member] * Entity's total for related parties [member] * ifrs-full:MachineryMember (label) * Equity [Member] * Geographical areas [member] * Ranges [member]Useful lives or depreciation rates, property, plant and equipment3~10 years
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for business combinations [member] * Entity's total for related parties [member] * Other property, plant and equipment [member] * Equity [Member] * Geographical areas [member] * Ranges [member]Useful lives or depreciation rates, property, plant and equipment3~6 years

Fact Table
Network
187 - Disclosure - Cash and Cash Equivalents (Details)
(http://auo.com/role/CashAndCashEquivalentsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:Cash (label)42389461000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:Cash (label)40871878000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2014-12-31nullifrs-full:CashAndCashEquivalents (label)81965333000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-12-31nullifrs-full:CashAndCashEquivalents (label)78880700000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CashAndCashEquivalents (label)80191248000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CashAndCashEquivalents (label)105020616000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:ShorttermDepositsClassifiedAsCashEquivalents (label)37676746000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:ShorttermDepositsClassifiedAsCashEquivalents (label)57438459000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:ShorttermInvestmentsClassifiedAsCashEquivalents (label)125041000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:ShorttermInvestmentsClassifiedAsCashEquivalents (label)6710279000iso4217:TWD-3

Fact Table
Network
188 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details)
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstrumentsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentDerivativeFinancialLiabilities (label)3540000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentDerivativeFinancialLiabilities (label)0iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentFinancialAssetsAtFairValueThroughProfitOrLoss (label)65669000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentFinancialAssetsAtFairValueThroughProfitOrLoss (label)70366000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss (label)896998000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss (label)106597000iso4217:TWD-3

Fact Table
Network
189 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details 1)
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstrumentsDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Sell EUR Buy NTD [Member] * Maturity Date Jan 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged5000000iso4217:EUR-3
20001172494 (http://www.sec.gov/CIK)2016-12-31Sell EUR Buy NTD [Member] * Maturity Date Jan 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged171967000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31Sell USD Buy SGD [Member] * Maturity Date Jan 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged170157000iso4217:USD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31Sell USD Buy SGD [Member] * Maturity Date Jan 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged245680000iso4217:SGD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31Sell CNY Buy USD [Member] * Maturity Date Jan- Apr 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged52189000iso4217:USD-3
60001172494 (http://www.sec.gov/CIK)2016-12-31Sell CNY Buy USD [Member] * Maturity Date Jan- Apr 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged359763000iso4217:CNY-3
70001172494 (http://www.sec.gov/CIK)2016-12-31Sell EUR Buy CZK [Member] * Maturity Date Jan- Feb. 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged3190000iso4217:EUR-3
80001172494 (http://www.sec.gov/CIK)2016-12-31Sell EUR Buy CZK [Member] * Maturity Date Jan- Feb. 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged85791000iso4217:CZK-3
90001172494 (http://www.sec.gov/CIK)2016-12-31Sell USD Buy NTD [Member] * Maturity Date Jan- Feb. 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged711000000iso4217:USD-3
100001172494 (http://www.sec.gov/CIK)2016-12-31Sell USD Buy NTD [Member] * Maturity Date Jan- Feb. 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged22687304000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31Sell CNY Buy JPY [Member] * Maturity Date Jan- Jul 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged588583000iso4217:CNY-3
120001172494 (http://www.sec.gov/CIK)2016-12-31Sell CNY Buy JPY [Member] * Maturity Date Jan- Jul 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged9068273000iso4217:JPY-3
130001172494 (http://www.sec.gov/CIK)2016-12-31Sell USD Buy CNY [Member] * Maturity Date Jan- Jun 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged96000000iso4217:USD-3
140001172494 (http://www.sec.gov/CIK)2016-12-31Sell USD Buy CNY [Member] * Maturity Date Jan- Jun 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged662180000iso4217:CNY-3
150001172494 (http://www.sec.gov/CIK)2016-12-31Sell USD Buy JPY [Member] * Maturity Date Jan- Mar 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged126730000iso4217:USD-3
160001172494 (http://www.sec.gov/CIK)2016-12-31Sell USD Buy JPY [Member] * Maturity Date Jan- Mar 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged13860716000iso4217:JPY-3
170001172494 (http://www.sec.gov/CIK)2016-12-31Sell USD Buy MYR [Member] * Maturity Date Jan- Mar 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged741000iso4217:USD-3
180001172494 (http://www.sec.gov/CIK)2016-12-31Sell USD Buy MYR [Member] * Maturity Date Jan- Mar 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged3296000iso4217:MYR-3
190001172494 (http://www.sec.gov/CIK)2016-12-31Sell EUR Buy JPY [Member] * Maturity Date Mar 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged90000000iso4217:EUR-3
200001172494 (http://www.sec.gov/CIK)2016-12-31Sell EUR Buy JPY [Member] * Maturity Date Mar 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged10693738000iso4217:JPY-3
210001172494 (http://www.sec.gov/CIK)2016-12-31Sell EUR Buy USD [Member] * Maturity Date Mar 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged41000000iso4217:EUR-3
220001172494 (http://www.sec.gov/CIK)2016-12-31Sell EUR Buy USD [Member] * Maturity Date Mar 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged44148000iso4217:USD-3
230001172494 (http://www.sec.gov/CIK)2016-12-31Sell JPY Buy NTD [Member] * Maturity Date Mar 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged13725000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2016-12-31Sell JPY Buy NTD [Member] * Maturity Date Mar 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged50000000iso4217:JPY-3
250001172494 (http://www.sec.gov/CIK)2016-12-31Sell NTD Buy JPY [Member] * Maturity Date Mar 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged1474085000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2016-12-31Sell NTD Buy JPY [Member] * Maturity Date Mar 2017 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged5400000000iso4217:JPY-3
270001172494 (http://www.sec.gov/CIK)2017-12-31Sell JPY Buy NTD [Member] * Maturity Date Jan 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged2654220000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2017-12-31Sell JPY Buy NTD [Member] * Maturity Date Jan 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged10000000000iso4217:JPY-3
290001172494 (http://www.sec.gov/CIK)2017-12-31Sell USD Buy SGD [Member] * Maturity Date Jan 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged5480000iso4217:USD-3
300001172494 (http://www.sec.gov/CIK)2017-12-31Sell USD Buy SGD [Member] * Maturity Date Jan 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged7366000iso4217:SGD-3
310001172494 (http://www.sec.gov/CIK)2017-12-31Sell CNY Buy JPY [Member] * Maturity Date Jan- Apr 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged86623000iso4217:CNY-3
320001172494 (http://www.sec.gov/CIK)2017-12-31Sell CNY Buy JPY [Member] * Maturity Date Jan- Apr 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged1443259000iso4217:JPY-3
330001172494 (http://www.sec.gov/CIK)2017-12-31Sell USD Buy CNY [Member] * Maturity Date Jan- Apr 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged137000000iso4217:USD-3
340001172494 (http://www.sec.gov/CIK)2017-12-31Sell USD Buy CNY [Member] * Maturity Date Jan- Apr 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged903800000iso4217:CNY-3
350001172494 (http://www.sec.gov/CIK)2017-12-31Sell EUR Buy JPY [Member] * auo:MaturityDateJanFeb2018Member (label)Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged65000000iso4217:EUR-3
360001172494 (http://www.sec.gov/CIK)2017-12-31Sell EUR Buy JPY [Member] * auo:MaturityDateJanFeb2018Member (label)Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged8691815000iso4217:JPY-3
370001172494 (http://www.sec.gov/CIK)2017-12-31Sell USD Buy NTD [Member] * auo:MaturityDateJanFeb2018Member (label)Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged213100000iso4217:USD-3
380001172494 (http://www.sec.gov/CIK)2017-12-31Sell USD Buy NTD [Member] * auo:MaturityDateJanFeb2018Member (label)Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged6377672000iso4217:TWD-3
390001172494 (http://www.sec.gov/CIK)2017-12-31Sell USD Buy JPY [Member] * Maturity Date Jan- Jun 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged304926000iso4217:USD-3
400001172494 (http://www.sec.gov/CIK)2017-12-31Sell USD Buy JPY [Member] * Maturity Date Jan- Jun 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged34092055000iso4217:JPY-3
410001172494 (http://www.sec.gov/CIK)2017-12-31Sell EUR Buy CZK [Member] * Maturity Date Jan- Mar 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged3280000iso4217:EUR-3
420001172494 (http://www.sec.gov/CIK)2017-12-31Sell EUR Buy CZK [Member] * Maturity Date Jan- Mar 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged83502000iso4217:CZK-3
430001172494 (http://www.sec.gov/CIK)2017-12-31Sell USD Buy MYR [Member] * Maturity Date Jan- Mar 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged931000iso4217:USD-3
440001172494 (http://www.sec.gov/CIK)2017-12-31Sell USD Buy MYR [Member] * Maturity Date Jan- Mar 2018 [Member]Contractual amounts to be exchanged in derivative financial instrument for which gross cash flows are exchanged3811000iso4217:MYR-3

Fact Table
Network
190 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details 2)
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstrumentsDetails2)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Forward contract [member]auo:RealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)1179119000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Forward contract [member]auo:RealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)80423000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Forward contract [member]auo:RealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)850936000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Forward contract [member]auo:UnrealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)-240002000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Forward contract [member]auo:UnrealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)-491860000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Forward contract [member]auo:UnrealizedPortionOfGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)795098000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Financial assets, class [member]ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)939117000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Forward contract [member]ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)939117000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Financial assets, class [member]ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)-411437000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Forward contract [member]ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)-411437000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Financial assets, class [member]ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)1646034000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Forward contract [member]ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)1646034000iso4217:TWD-3

Fact Table
Network
191 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details 3)
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstrumentsDetails3)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Interest rate swap contract [member]auo:DescriptionOfPeriodsWhenCashflowsExpectedToRecognized (label)Jan. 2017 – Aug. 2017
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Interest rate swap contract [member]ifrs-full:DescriptionOfPeriodsWhenCashFlowsExpectedToOccur (label)Jan. 2017 – Aug. 2017
30001172494 (http://www.sec.gov/CIK)2017-12-31Interest rate swap contract [member]ifrs-full:FinancialInstrumentsDesignatedAsHedgingInstrumentsAtFairValue (label)3540000iso4217:TWD-3

Fact Table
Network
192 - Disclosure - Derivative Financial Instruments and Hedging Instruments (Details Textual)
(http://auo.com/role/DerivativeFinancialInstrumentsAndHedgingInstrumentsDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Financial assets, class [member]Gains (losses) on change in fair value of derivatives0iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Financial assets, class [member]Gains (losses) on change in fair value of derivatives0iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Financial assets, class [member]Gains (losses) on change in fair value of derivatives0iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31Interest rate swap contract [member]Notional amount1760000000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31Interest rate swap contract [member]Notional amount0iso4217:TWD-3

Fact Table
Network
193 - Disclosure - Available-for-sale Financial Assets–noncurrent (Details)
(http://auo.com/role/AvailableforsaleFinancialAssetsnoncurrentDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:NoncurrentFinancialAssetsAvailableforsale (label)3030278000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:NoncurrentFinancialAssetsAvailableforsale (label)4348134000iso4217:TWD-3

Fact Table
Network
194 - Disclosure - Available-for-sale Financial Assets–noncurrent (Details Textual)
(http://auo.com/role/AvailableforsaleFinancialAssetsnoncurrentDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Financial assets, category [member]auo:AmountOfSensitivityOfAvailableForSaleSecuritiesToChangesInEquityPrice (label)207720000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Financial assets, category [member]auo:AmountOfSensitivityOfAvailableForSaleSecuritiesToChangesInEquityPrice (label)283670000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Financial assets, category [member]auo:AmountOfSensitivityOfAvailableForSaleSecuritiesToChangesInEquityPrice (label)417032000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Financial assets, category [member]auo:AppreciationOrDepreciationRateOnEquityPrice (label)0.1xbrli:pure1
50001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Financial assets, category [member]auo:GainsLossesOnDisposalsOfAvailableforsaleFinancialAssets (label)99517000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Financial assets, category [member]auo:GainsLossesOnDisposalsOfAvailableforsaleFinancialAssets (label)2877000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Financial assets, category [member]ifrs-full:ImpairmentLoss (label)7026226000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Financial assets, category [member]ifrs-full:ImpairmentLoss (label)34733000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:ImpairmentLoss (label)686000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Financial assets, category [member]ifrs-full:ImpairmentLoss (label)1046668000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:ImpairmentLoss (label)30000000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Financial assets, category [member]ifrs-full:ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets (label)99517000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Financial assets, category [member]ifrs-full:ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets (label)9917000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Financial assets, category [member]ifrs-full:ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets (label)0iso4217:TWD-3

Fact Table
Network
195 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31nullauo:AllowanceForSalesReturnsAndDiscounts (label)853614000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-12-31nullauo:AllowanceForSalesReturnsAndDiscounts (label)1337076000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31nullauo:NotesAndAccountsReceivableNetIncludingRelatedParties (label)48243401000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-12-31nullauo:NotesAndAccountsReceivableNetIncludingRelatedParties (label)40591273000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31nullauo:TradeAndOtherReceivablesCurrentGross (label)49201632000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31nullauo:TradeAndOtherReceivablesCurrentGross (label)42021402000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)104617000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)93053000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:AmountsReceivableRelatedPartyTransactions (label)2533224000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:AmountsReceivableRelatedPartyTransactions (label)1853062000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:TradeAndOtherCurrentReceivables (label)45710177000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:TradeAndOtherCurrentReceivables (label)38738211000iso4217:TWD-3

Fact Table
Network
196 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details 1)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Entity's total for impairment of financial assets [member] * Past due status [member]auo:NotesAndAccountsReceivableNetIncludingRelatedParties (label)48243401000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets past due but not impaired [member] * Past due status [member]auo:NotesAndAccountsReceivableNetIncludingRelatedParties (label)541852000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets past due but not impaired [member] * auo:LaterThanSixMonthMember (label)auo:NotesAndAccountsReceivableNetIncludingRelatedParties (label)1020000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets past due but not impaired [member] * auo:LaterThanTwoMonthsAndNotLaterThanSixMonthsMember (label)auo:NotesAndAccountsReceivableNetIncludingRelatedParties (label)9505000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets past due but not impaired [member] * Not later than two months [Member]auo:NotesAndAccountsReceivableNetIncludingRelatedParties (label)531327000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31Entity's total for impairment of financial assets [member] * Past due status [member]auo:NotesAndAccountsReceivableNetIncludingRelatedParties (label)40591273000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets past due but not impaired [member] * Past due status [member]auo:NotesAndAccountsReceivableNetIncludingRelatedParties (label)572806000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets past due but not impaired [member] * auo:LaterThanSixMonthMember (label)auo:NotesAndAccountsReceivableNetIncludingRelatedParties (label)0iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets past due but not impaired [member] * auo:LaterThanTwoMonthsAndNotLaterThanSixMonthsMember (label)auo:NotesAndAccountsReceivableNetIncludingRelatedParties (label)12790000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets past due but not impaired [member] * Not later than two months [Member]auo:NotesAndAccountsReceivableNetIncludingRelatedParties (label)560016000iso4217:TWD-3

Fact Table
Network
197 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details 2)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesDetails2)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Expected credit losses collectively assessed [member]ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets (label)-14864000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Expected credit losses individually assessed [member]ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets (label)3196000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Expected credit losses collectively assessed [member]ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets (label)12938000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Expected credit losses individually assessed [member]ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets (label)31360000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Expected credit losses collectively assessed [member]ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets (label)18396000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Expected credit losses individually assessed [member]ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets (label)-28236000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2014-12-31Expected credit losses collectively assessed [member]ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)72906000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2014-12-31Expected credit losses individually assessed [member]ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)10334000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2015-12-31Expected credit losses collectively assessed [member]ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)58183000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-12-31Expected credit losses individually assessed [member]ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)11714000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31Method of assessment of expected credit losses [member]ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)104617000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2016-12-31Expected credit losses collectively assessed [member]ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)62805000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-12-31Expected credit losses individually assessed [member]ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)41812000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-12-31Method of assessment of expected credit losses [member]ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)93053000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-12-31Expected credit losses collectively assessed [member]ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)80288000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-12-31Expected credit losses individually assessed [member]ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)12765000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Expected credit losses collectively assessed [member]ifrs-full:IncreaseDecreaseThroughAdjustmentsArisingFromPassageOfTimeAllowanceAccountForCreditLossesOfFinancialAssets (label)383000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Expected credit losses individually assessed [member]ifrs-full:IncreaseDecreaseThroughAdjustmentsArisingFromPassageOfTimeAllowanceAccountForCreditLossesOfFinancialAssets (label)1814000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Expected credit losses collectively assessed [member]ifrs-full:IncreaseDecreaseThroughAdjustmentsArisingFromPassageOfTimeAllowanceAccountForCreditLossesOfFinancialAssets (label)7385000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Expected credit losses individually assessed [member]ifrs-full:IncreaseDecreaseThroughAdjustmentsArisingFromPassageOfTimeAllowanceAccountForCreditLossesOfFinancialAssets (label)0iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Expected credit losses collectively assessed [member]ifrs-full:IncreaseDecreaseThroughAdjustmentsArisingFromPassageOfTimeAllowanceAccountForCreditLossesOfFinancialAssets (label)0iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Expected credit losses individually assessed [member]ifrs-full:IncreaseDecreaseThroughAdjustmentsArisingFromPassageOfTimeAllowanceAccountForCreditLossesOfFinancialAssets (label)6000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Expected credit losses collectively assessed [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets (label)524000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Expected credit losses individually assessed [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets (label)-2000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Expected credit losses collectively assessed [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets (label)-931000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Expected credit losses individually assessed [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets (label)-1262000iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Expected credit losses collectively assessed [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets (label)-913000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Expected credit losses individually assessed [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets (label)-805000iso4217:TWD-3

Fact Table
Network
198 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details 3)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesDetails3)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31auo:BankOfTaiwanMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31auo:ChinatrustCommercialBankMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31auo:DbsBankMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31auo:ESunBankMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31auo:TaipeiFubonBankMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
60001172494 (http://www.sec.gov/CIK)2016-12-31auo:TaishinBankMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
70001172494 (http://www.sec.gov/CIK)2016-12-31auo:TaishinMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31auo:BankOfTaiwanMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
90001172494 (http://www.sec.gov/CIK)2017-12-31auo:ChinatrustCommercialBankMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
100001172494 (http://www.sec.gov/CIK)2017-12-31auo:DbsBankMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
110001172494 (http://www.sec.gov/CIK)2017-12-31auo:ESunBankMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
120001172494 (http://www.sec.gov/CIK)2017-12-31auo:TaipeiFubonBankMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
130001172494 (http://www.sec.gov/CIK)2017-12-31auo:TaishinBankMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
140001172494 (http://www.sec.gov/CIK)2017-12-31auo:TaishinMember (label) * Factoring of receivables [member]auo:AdvancePaidForTransferOfAssets (label)0iso4217:USD-3
150001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:BankOfTaiwanMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(c) and (e)
160001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:ChinatrustCommercialBankMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(c) and (e)
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:DbsBankMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(c) and (e)
180001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:ESunBankMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(c) and (e)
190001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:TaipeiFubonBankMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(c) and (e)
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:TaishinBankMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(c) and (e)
210001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:TaishinMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(d) and (f)
220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:BankOfTaiwanMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(c) and (e)
230001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ChinatrustCommercialBankMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(c) and (e)
240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:DbsBankMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(c) and (e)
250001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ESunBankMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(c) and (e)
260001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:TaipeiFubonBankMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(c) and (e)
270001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:TaishinBankMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(c) and (e)
280001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:TaishinMember (label) * Factoring of receivables [member]ifrs-full:LineItemsOfRecognisedAssetsAndLiabilitiesRepresentingContinuingInvolvementInDerecognisedFinancialAssets (label)See notes(a)~(d) and (f)
290001172494 (http://www.sec.gov/CIK)2016-12-31auo:BankOfTaiwanMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)250000000iso4217:USD-3
300001172494 (http://www.sec.gov/CIK)2016-12-31auo:ChinatrustCommercialBankMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)230000000iso4217:USD-3
310001172494 (http://www.sec.gov/CIK)2016-12-31auo:DbsBankMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)184000000iso4217:USD-3
320001172494 (http://www.sec.gov/CIK)2016-12-31auo:ESunBankMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)100000000iso4217:USD-3
330001172494 (http://www.sec.gov/CIK)2016-12-31auo:TaipeiFubonBankMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)120000000iso4217:USD-3
340001172494 (http://www.sec.gov/CIK)2016-12-31auo:TaishinBankMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)80000000iso4217:USD-3
350001172494 (http://www.sec.gov/CIK)2016-12-31auo:TaishinMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)35000000iso4217:USD-3
360001172494 (http://www.sec.gov/CIK)2017-12-31auo:BankOfTaiwanMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)250000000iso4217:USD-3
370001172494 (http://www.sec.gov/CIK)2017-12-31auo:ChinatrustCommercialBankMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)200000000iso4217:USD-3
380001172494 (http://www.sec.gov/CIK)2017-12-31auo:DbsBankMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)154000000iso4217:USD-3
390001172494 (http://www.sec.gov/CIK)2017-12-31auo:ESunBankMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)50000000iso4217:USD-3
400001172494 (http://www.sec.gov/CIK)2017-12-31auo:TaipeiFubonBankMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)120000000iso4217:USD-3
410001172494 (http://www.sec.gov/CIK)2017-12-31auo:TaishinBankMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)80000000iso4217:USD-3
420001172494 (http://www.sec.gov/CIK)2017-12-31auo:TaishinMember (label) * Factoring of receivables [member]ifrs-full:MaximumExposureToLossFromContinuingInvolvement (label)35000000iso4217:USD-3
430001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:BankOfTaiwanMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)0iso4217:USD-3
440001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:ChinatrustCommercialBankMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)0iso4217:USD-3
450001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:DbsBankMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)0iso4217:USD-3
460001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:ESunBankMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)0iso4217:USD-3
470001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:TaipeiFubonBankMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)0iso4217:USD-3
480001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:TaishinBankMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)0iso4217:USD-3
490001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:TaishinMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)8780000iso4217:USD-3
500001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:BankOfTaiwanMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)0iso4217:USD-3
510001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ChinatrustCommercialBankMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)0iso4217:USD-3
520001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:DbsBankMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)0iso4217:USD-3
530001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ESunBankMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)0iso4217:USD-3
540001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:TaipeiFubonBankMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)0iso4217:USD-3
550001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:TaishinBankMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)0iso4217:USD-3
560001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:TaishinMember (label) * Factoring of receivables [member]ifrs-full:ProceedsFromTransferActivity (label)6382000iso4217:USD-3

Fact Table
Network
199 - Disclosure - Accounts Receivable, net (Including Related and Unrelated Parties) (Details Textual)
(http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Financial instruments, class [member] * Bottom of range [member]auo:PaymentTermsGrantedToCustomers (label)_2492512
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Financial instruments, class [member] * Top of range [member]auo:PaymentTermsGrantedToCustomers (label)_2493148
30001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * Ranges [member]ifrs-full:OtherCurrentFinancialAssets (label)559946000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31Trade receivables [member] * Ranges [member]ifrs-full:OtherCurrentFinancialAssets (label)283694000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * Ranges [member]ifrs-full:OtherCurrentFinancialAssets (label)518329000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31Trade receivables [member] * Ranges [member]ifrs-full:OtherCurrentFinancialAssets (label)190451000iso4217:TWD-3

Fact Table
Network
200 - Disclosure - Inventories (Details)
(http://auo.com/role/InventoriesDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentInventoriesHeldForSale (label)9532199000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentInventoriesHeldForSale (label)10095820000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:CurrentMaterialsAndSuppliesToBeConsumedInProductionProcessOrRenderingServices (label)7046789000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:CurrentMaterialsAndSuppliesToBeConsumedInProductionProcessOrRenderingServices (label)5352826000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:Inventories (label)27679335000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:Inventories (label)24854323000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:WorkInProgress (label)11100347000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:WorkInProgress (label)9405677000iso4217:TWD-3

Fact Table
Network
201 - Disclosure - Inventories (Details Textual)
(http://auo.com/role/InventoriesDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:AmountOfInventoriesRecognisedAsCostOfSalesDuringPeriod (label)319606448000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:AmountOfInventoriesRecognisedAsCostOfSalesDuringPeriod (label)296661898000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:AmountOfInventoriesRecognisedAsCostOfSalesDuringPeriod (label)279914056000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullInventory write-down5661266000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullInventory write-down3673213000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullInventory write-down3756726000iso4217:TWD-3

Fact Table
Network
202 - Disclosure - Noncurrent Assets Held for Sale (Details)
(http://auo.com/role/NoncurrentAssetsHeldForSaleDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Assets and liabilities not classified as held for sale [member]ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale (label)228015000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31Land use right [Member]ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale (label)0iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31auo:PropertyPlantAndEquipmentHeldForSaleMember (label)ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale (label)228015000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-12-31Assets and liabilities not classified as held for sale [member]ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale (label)2407980000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31Land use right [Member]ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale (label)444610000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31auo:PropertyPlantAndEquipmentHeldForSaleMember (label)ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale (label)1963370000iso4217:TWD-3

Fact Table
Network
203 - Disclosure - Noncurrent Assets Held for Sale (Details Textual)
(http://auo.com/role/NoncurrentAssetsHeldForSaleDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-10-01 to 2017-10-31Assets and liabilities not classified as held for sale [member] * Assets [member] * auo:FortechElectronicsKunshanCoLtdMember (label)auo:NoncurrentAssetsHeldForSaleDisposalConsideration (label)215527000iso4217:CNY-3
20001172494 (http://www.sec.gov/CIK)2017-12-01 to 2017-12-31Assets and liabilities not classified as held for sale [member] * Assets [member] * auo:BriviewHefeiCoLtdMember (label)auo:NoncurrentAssetsHeldForSaleDisposalConsideration (label)512770000iso4217:CNY-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Assets and liabilities not classified as held for sale [member] * Assets [member] * Entity's total for subsidiaries [member]ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)585196000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Assets and liabilities not classified as held for sale [member] * Assets [member] * Entity's total for subsidiaries [member]ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)24278000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Assets and liabilities not classified as held for sale [member] * Assets [member] * Entity's total for subsidiaries [member]ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)330814000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-03-01 to 2017-08-31Non-current assets held for sale [member] * Assets [member] * auo:MsetekCoLtdMember (label)ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)215478000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-06-01 to 2016-06-30Non-current assets held for sale [member] * Assets [member] * auo:AuoEnergyTianjinCorpMember (label)ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)14717000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-03-01 to 2017-08-31Non-current assets held for sale [member] * Assets [member] * auo:MsetekCoLtdMember (label)Proceeds from disposal of non-current assets or disposal groups classified as held for sale and discontinued operations837103000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-06-01 to 2016-06-30Non-current assets held for sale [member] * Assets [member] * auo:AuoEnergyTianjinCorpMember (label)Proceeds from disposal of non-current assets or disposal groups classified as held for sale and discontinued operations141117000iso4217:CNY-3
100001172494 (http://www.sec.gov/CIK)2016-06-01 to 2016-06-30Non-current assets held for sale [member] * Assets [member] * auo:AuoEnergyTianjinCorpMember (label)Proceeds from disposal of non-current assets or disposal groups classified as held for sale and discontinued operations683078000iso4217:TWD-3

Fact Table
Network
204 - Disclosure - Investments in equity-accounted Investees (Details)
(http://auo.com/role/InvestmentsInEquityaccountedInvesteesDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:InvestmentsInAssociates (label)4853325000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:InvestmentsInAssociates (label)5286487000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:InvestmentsInJointVentures (label)325012000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:InvestmentsInJointVentures (label)310800000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates (label)5178337000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates (label)5597287000iso4217:TWD-3

Fact Table
Network
205 - Disclosure - Investments in equity-accounted Investees (Details 1)
(http://auo.com/role/InvestmentsInEquityaccountedInvesteesDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:DaxinMaterialsCorpMember (label)auo:PrincipalActivitiesOfBusinessAssociate (label)Research, manufacturing, and sales of display related chemicals
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:LextarElectronicsCorpMember (label)auo:PrincipalActivitiesOfBusinessAssociate (label)Manufacturing and sales of Light Emitting Diode
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:RaydiumSemiconductorCorporationMember (label)auo:PrincipalActivitiesOfBusinessAssociate (label)IC design
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:SsecMember (label)auo:PrincipalActivitiesOfBusinessAssociate (label)Holding company
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Star River Energy Corporation [Member]auo:PrincipalActivitiesOfBusinessAssociate (label)Holding company
60001172494 (http://www.sec.gov/CIK)2016-12-31Entity's total for associates [member]ifrs-full:InvestmentsInAssociates (label)4853325000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-12-31auo:DaxinMaterialsCorpMember (label)ifrs-full:InvestmentsInAssociates (label)525835000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-12-31auo:LextarElectronicsCorpMember (label)ifrs-full:InvestmentsInAssociates (label)3082856000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-12-31auo:OtherAssociateMember (label)ifrs-full:InvestmentsInAssociates (label)0iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2016-12-31auo:RaydiumSemiconductorCorporationMember (label)ifrs-full:InvestmentsInAssociates (label)712829000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31auo:SsecMember (label)ifrs-full:InvestmentsInAssociates (label)0iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2016-12-31Star River Energy Corporation [Member]ifrs-full:InvestmentsInAssociates (label)531805000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-12-31Entity's total for associates [member]ifrs-full:InvestmentsInAssociates (label)5286487000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-12-31auo:DaxinMaterialsCorpMember (label)ifrs-full:InvestmentsInAssociates (label)573571000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-12-31auo:LextarElectronicsCorpMember (label)ifrs-full:InvestmentsInAssociates (label)3104955000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-12-31auo:OtherAssociateMember (label)ifrs-full:InvestmentsInAssociates (label)26060000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2017-12-31auo:RaydiumSemiconductorCorporationMember (label)ifrs-full:InvestmentsInAssociates (label)678908000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-12-31auo:SsecMember (label)ifrs-full:InvestmentsInAssociates (label)369153000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2017-12-31Star River Energy Corporation [Member]ifrs-full:InvestmentsInAssociates (label)533840000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:DaxinMaterialsCorpMember (label)Principal place of business of associateTaiwan ROC
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:LextarElectronicsCorpMember (label)Principal place of business of associateTaiwan ROC
220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:RaydiumSemiconductorCorporationMember (label)Principal place of business of associateTaiwan ROC
230001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:SsecMember (label)Principal place of business of associateTaiwan ROC
240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Star River Energy Corporation [Member]Principal place of business of associateTaiwan ROC
250001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:DaxinMaterialsCorpMember (label)Proportion of ownership interest in associate0.25xbrli:pure2
260001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:LextarElectronicsCorpMember (label)Proportion of ownership interest in associate0.25xbrli:pure2
270001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:RaydiumSemiconductorCorporationMember (label)Proportion of ownership interest in associate0.18xbrli:pure2
280001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:SsecMember (label)Proportion of ownership interest in associate0xbrli:pure0
290001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Star River Energy Corporation [Member]Proportion of ownership interest in associate0.34xbrli:pure2
300001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:DaxinMaterialsCorpMember (label)Proportion of ownership interest in associate0.25xbrli:pure2
310001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:LextarElectronicsCorpMember (label)Proportion of ownership interest in associate0.27xbrli:pure2
320001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:RaydiumSemiconductorCorporationMember (label)Proportion of ownership interest in associate0.18xbrli:pure2
330001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:SsecMember (label)Proportion of ownership interest in associate0.37xbrli:pure2
340001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Star River Energy Corporation [Member]Proportion of ownership interest in associate0.34xbrli:pure2

Fact Table
Network
206 - Disclosure - Investments in equity-accounted Investees (Details 2)
(http://auo.com/role/InvestmentsInEquityaccountedInvesteesDetails2)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Associates [member]ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)-71585000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Associates [member]ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)-29460000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Associates [member]ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)-62084000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for associates [member]ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod (label)248165000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for associates [member]ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod (label)18644000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for associates [member]ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod (label)251699000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Associates [member]ifrs-full:ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)176580000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Associates [member]ifrs-full:ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)-10816000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Associates [member]ifrs-full:ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)189615000iso4217:TWD-3

Fact Table
Network
207 - Disclosure - Investments in equity-accounted Investees (Details 3)
(http://auo.com/role/InvestmentsInEquityaccountedInvesteesDetails3)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Joint ventures [member]ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)394132000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Joint ventures [member]ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)-314710000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Joint ventures [member]ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)0iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for joint ventures [member]ifrs-full:ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod (label)201287000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for joint ventures [member]ifrs-full:ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod (label)82134000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for joint ventures [member]ifrs-full:ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod (label)-12693000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Joint ventures [member]ifrs-full:ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)595419000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Joint ventures [member]ifrs-full:ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)-232576000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Joint ventures [member]ifrs-full:ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)-12693000iso4217:TWD-3

Fact Table
Network
208 - Disclosure - Investments in equity-accounted Investees (Details Textual)
(http://auo.com/role/InvestmentsInEquityaccountedInvesteesDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-09-02 to 2016-09-30Contract Item [Domain] * Entity's total for joint ventures [member] * Aggregated time bands [member] * Entity's total for associates [member] * auo:SunpowerTechnologyLtdMember (label)auo:ConsiderationTransferredFromSalesOfInterestsInJointVentures (label)170100000iso4217:USD-3
20001172494 (http://www.sec.gov/CIK)2016-09-02 to 2016-09-30Contract Item [Domain] * Entity's total for joint ventures [member] * Aggregated time bands [member] * Entity's total for associates [member] * auo:SunpowerTechnologyLtdMember (label)auo:ConsiderationTransferredFromSalesOfInterestsInJointVentures (label)5408546000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-12-31Contract Item [Domain] * Entity's total for joint ventures [member] * Aggregated time bands [member] * Entity's total for associates [member] * auo:SunpowerTechnologyLtdMember (label)auo:DisposalConsiderationWillBeReceivedInCashIn2018 (label)1100000iso4217:USD-3
40001172494 (http://www.sec.gov/CIK)2017-12-31Contract Item [Domain] * Entity's total for joint ventures [member] * Aggregated time bands [member] * Entity's total for associates [member] * auo:SunpowerTechnologyLtdMember (label)auo:DisposalConsiderationWillBeReceivedInCashIn2019 (label)30000000iso4217:USD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31Contract Item [Domain] * Entity's total for joint ventures [member] * Aggregated time bands [member] * Entity's total for associates [member] * auo:SunpowerTechnologyLtdMember (label)auo:DisposalConsiderationWillBeReceivedInCashIn2020 (label)30000000iso4217:USD-3
60001172494 (http://www.sec.gov/CIK)2010-07-05Contract Item [Domain] * AUO SunPower Sdn. Bhd [Member] * Aggregated time bands [member] * Entity's total for associates [member] * Entity's total for subsidiaries [member]auo:OtherTangibleOrIntangibleAssetsTransferredToAcquireInterestsInJointVentures (label)30000000iso4217:USD-3
70001172494 (http://www.sec.gov/CIK)2010-07-05Contract Item [Domain] * AUO SunPower Sdn. Bhd [Member] * Aggregated time bands [member] * Entity's total for associates [member] * Entity's total for subsidiaries [member]auo:OtherTangibleOrIntangibleAssetsTransferredToAcquireInterestsInJointVentures (label)966600000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31Contract Item [Domain] * Entity's total for joint ventures [member] * Aggregated time bands [member] * Entity's total for associates [member] * auo:SunpowerTechnologyLtdMember (label)auo:TotalOutstandingDisposalConsideration (label)61100000iso4217:USD-3
90001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Contract Item [Domain] * Entity's total for joint ventures [member] * Aggregated time bands [member] * Entity's total for associates [member] * Entity's total for subsidiaries [member]ifrs-full:GainsLossesOnDisposalsOfInvestments (label)-10618000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Contract Item [Domain] * Entity's total for joint ventures [member] * Aggregated time bands [member] * Qisda Corporation [Member] * Entity's total for subsidiaries [member]ifrs-full:GainsLossesOnDisposalsOfInvestments (label)-110136000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Contract Item [Domain] * Entity's total for joint ventures [member] * Aggregated time bands [member] * Entity's total for associates [member] * Entity's total for subsidiaries [member]ifrs-full:GainsLossesOnDisposalsOfInvestments (label)-333858000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Contract Item [Domain] * Entity's total for joint ventures [member] * Aggregated time bands [member] * Entity's total for associates [member] * Entity's total for subsidiaries [member]ifrs-full:GainsLossesOnDisposalsOfInvestments (label)42788000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-09-02 to 2016-09-30Contract Item [Domain] * Entity's total for joint ventures [member] * Aggregated time bands [member] * Entity's total for associates [member] * auo:SunpowerTechnologyLtdMember (label)ifrs-full:GainsLossesOnDisposalsOfInvestments (label)-382608000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2010-06-10 to 2010-07-05Contract Item [Domain] * AUO SunPower Sdn. Bhd [Member] * Aggregated time bands [member] * Entity's total for associates [member] * Entity's total for subsidiaries [member]Other cash payments to acquire interests in joint ventures, classified as investing activities180069000iso4217:USD-3
150001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Contract Item [Domain] * Entity's total for joint ventures [member] * Aggregated time bands [member] * auo:RaydiumSemiconductorCorporationMember (label) * Entity's total for subsidiaries [member]Proportion of ownership interest in associate0.18xbrli:pure2
160001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Contract Item [Domain] * Entity's total for joint ventures [member] * Aggregated time bands [member] * auo:RaydiumSemiconductorCorporationMember (label) * Entity's total for subsidiaries [member]Proportion of ownership interest in associate0.18xbrli:pure2
170001172494 (http://www.sec.gov/CIK)2010-06-10 to 2010-07-05Contract Item [Domain] * AUO SunPower Sdn. Bhd [Member] * Aggregated time bands [member] * Entity's total for associates [member] * Entity's total for subsidiaries [member]Proportion of ownership interest in joint venture0.5xbrli:pure1

Fact Table
Network
209 - Disclosure - Disposal of Part of Ownership Interest in Subsidiary without Losing Control (Details)
(http://auo.com/role/DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlCapitalSurplusFromChangeInOwnershipOfSubsidiary (label)-12099000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlConsiderationReceivedFromNoncontrollingInterests (label)-1190529000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControldifferencesBetweenConsiderationAndCarryingAmountofSubsidiariesdisposedOf (label)518196000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlotherEquityEffectFromForeignCurrencyTranslationDifferences (label)-56160000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:Disposalofpartofownershipinterestinsubsidiarywithoutlosingcontrolconsiderationreceived (label)1776984000iso4217:TWD-3

Fact Table
Network
210 - Disclosure - Disposal of Part of Ownership Interest in Subsidiary without Losing Control (Details Textual)
(http://auo.com/role/DisposalOfPartOfOwnershipInterestInSubsidiaryWithoutLosingControlDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-11-01 to 2017-11-30nullauo:ProportionOfSubsidiaryOwnershipPercentageSold (label)0.0999xbrli:pure4
20001172494 (http://www.sec.gov/CIK)2017-11-01 to 2017-11-30nullauo:TotalCashConsiderationReceived (label)1776984000iso4217:TWD-3

Fact Table
Network
211 - Disclosure - Disposal of Subsidiaries (Details)
(http://auo.com/role/DisposalOfSubsidiariesDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:AccountsReceivableAndOtherReceivablesInSubsidiaryOrBusinessesAcquiredOrDisposed (label)4513000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:AccruedExpenseAndOtherCurrentLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposed (label)3062000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:LongtermBorrowingsInSubsidiaryOrBusinessesAcquiredOrDisposed (label)84187000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:NetAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed (label)403669000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:OtherAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed (label)54397000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:OtherCurrentAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed (label)38649000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:PayableForEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed (label)71076000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:PropertyPlantAndEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed (label)260828000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013 (label)203607000iso4217:TWD-3

Fact Table
Network
212 - Disclosure - Disposal of Subsidiaries (Details Textual)
(http://auo.com/role/DisposalOfSubsidiariesDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-12-01 to 2017-12-31nullauo:GainsOnDisposalOfSubsidiaries (label)76331000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-12-01 to 2017-12-31nullPortion of consideration paid (received) consisting of cash and cash equivalents480000000iso4217:TWD-3

Fact Table
Network
213 - Disclosure - Property, Plant and Equipment (Details)
(http://auo.com/role/PropertyPlantAndEquipmentDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Property, Plant and Equipment [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)38567822000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Buildings [member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)3107870000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Land [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)0iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)30329428000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Other equipment [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)5130524000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Buildings [member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)1086000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Property, Plant and Equipment [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)6958077000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Land [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)0iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)2424626000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Other equipment [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)4532365000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Carrying amount [member] * Prepayments for purchase of land and equipment, and construction in progress [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)48931054000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Property, Plant and Equipment [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)36817898000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Buildings [member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)3216571000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Land [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)0iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)27946301000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Other equipment [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)5655026000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Buildings [member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)433269000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Property, Plant and Equipment [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)7266521000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Land [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)865956000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)1827188000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Other equipment [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)4140108000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Carrying amount [member] * Prepayments for purchase of land and equipment, and construction in progress [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)36289529000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Property, Plant and Equipment [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)30423963000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Buildings [member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)132589000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Land [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)14487000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)23846019000iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Other equipment [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)6430868000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Buildings [member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)580089000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Property, Plant and Equipment [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)31090580000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Land [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)14455000iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)24033087000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Other equipment [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)6462949000iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Carrying amount [member] * Prepayments for purchase of land and equipment, and construction in progress [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)29246000iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Property, Plant and Equipment [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)26417931000iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Buildings [member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)3785921000iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Land [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)54186000iso4217:TWD-3
370001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)14694674000iso4217:TWD-3
380001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Other equipment [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)7883150000iso4217:TWD-3
390001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Buildings [member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)3786388000iso4217:TWD-3
400001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Property, Plant and Equipment [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)27207560000iso4217:TWD-3
410001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Land [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)675811000iso4217:TWD-3
420001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)14844436000iso4217:TWD-3
430001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Other equipment [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)7900925000iso4217:TWD-3
440001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Carrying amount [member] * Prepayments for purchase of land and equipment, and construction in progress [Member]ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)29206000iso4217:TWD-3
450001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Property, Plant and Equipment [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)-5824893000iso4217:TWD-3
460001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Buildings [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)261074000iso4217:TWD-3
470001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Land [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)2995000iso4217:TWD-3
480001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)-3327777000iso4217:TWD-3
490001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Other equipment [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)-2761185000iso4217:TWD-3
500001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Buildings [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)9018493000iso4217:TWD-3
510001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Property, Plant and Equipment [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)49532525000iso4217:TWD-3
520001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Land [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)-223850000iso4217:TWD-3
530001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)40635567000iso4217:TWD-3
540001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Other equipment [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)102315000iso4217:TWD-3
550001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Carrying amount [member] * Prepayments for purchase of land and equipment, and construction in progress [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)-58026641000iso4217:TWD-3
560001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Property, Plant and Equipment [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)-5989135000iso4217:TWD-3
570001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Buildings [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)-1633576000iso4217:TWD-3
580001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Land [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)-119211000iso4217:TWD-3
590001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)-4027879000iso4217:TWD-3
600001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Other equipment [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)-208469000iso4217:TWD-3
610001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Buildings [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)-3231856000iso4217:TWD-3
620001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Property, Plant and Equipment [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)12548030000iso4217:TWD-3
630001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Land [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)-55467000iso4217:TWD-3
640001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)15135124000iso4217:TWD-3
650001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Other equipment [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)700229000iso4217:TWD-3
660001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Carrying amount [member] * Prepayments for purchase of land and equipment, and construction in progress [Member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment (label)-22265225000iso4217:TWD-3
670001172494 (http://www.sec.gov/CIK)2015-12-31Carrying amount [member] * Property, Plant and Equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)208785609000iso4217:TWD-3
680001172494 (http://www.sec.gov/CIK)2015-12-31Accumulated depreciation, amortisation and impairment [member] * Property, Plant and Equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)758147568000iso4217:TWD-3
690001172494 (http://www.sec.gov/CIK)2015-12-31Accumulated depreciation, amortisation and impairment [member] * Buildings [member]ifrs-full:PropertyPlantAndEquipment (label)32791946000iso4217:TWD-3
700001172494 (http://www.sec.gov/CIK)2015-12-31Accumulated depreciation, amortisation and impairment [member] * Land [Member]ifrs-full:PropertyPlantAndEquipment (label)184889000iso4217:TWD-3
710001172494 (http://www.sec.gov/CIK)2015-12-31Accumulated depreciation, amortisation and impairment [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:PropertyPlantAndEquipment (label)694955031000iso4217:TWD-3
720001172494 (http://www.sec.gov/CIK)2015-12-31Accumulated depreciation, amortisation and impairment [member] * Other equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)30215702000iso4217:TWD-3
730001172494 (http://www.sec.gov/CIK)2015-12-31Gross carrying amount [member] * Buildings [member]ifrs-full:PropertyPlantAndEquipment (label)122156354000iso4217:TWD-3
740001172494 (http://www.sec.gov/CIK)2015-12-31Gross carrying amount [member] * Property, Plant and Equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)944535973000iso4217:TWD-3
750001172494 (http://www.sec.gov/CIK)2015-12-31Gross carrying amount [member] * Land [Member]ifrs-full:PropertyPlantAndEquipment (label)9112286000iso4217:TWD-3
760001172494 (http://www.sec.gov/CIK)2015-12-31Gross carrying amount [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:PropertyPlantAndEquipment (label)779019328000iso4217:TWD-3
770001172494 (http://www.sec.gov/CIK)2015-12-31Gross carrying amount [member] * Other equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)34248005000iso4217:TWD-3
780001172494 (http://www.sec.gov/CIK)2015-12-31Carrying amount [member] * Prepayments for purchase of land and equipment, and construction in progress [Member]ifrs-full:PropertyPlantAndEquipment (label)22397204000iso4217:TWD-3
790001172494 (http://www.sec.gov/CIK)2016-12-31Carrying amount [member] * Property, Plant and Equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)222741832000iso4217:TWD-3
800001172494 (http://www.sec.gov/CIK)2016-12-31Accumulated depreciation, amortisation and impairment [member] * Property, Plant and Equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)760466534000iso4217:TWD-3
810001172494 (http://www.sec.gov/CIK)2016-12-31Accumulated depreciation, amortisation and impairment [member] * Buildings [member]ifrs-full:PropertyPlantAndEquipment (label)36028301000iso4217:TWD-3
820001172494 (http://www.sec.gov/CIK)2016-12-31Accumulated depreciation, amortisation and impairment [member] * Land [Member]ifrs-full:PropertyPlantAndEquipment (label)173397000iso4217:TWD-3
830001172494 (http://www.sec.gov/CIK)2016-12-31Accumulated depreciation, amortisation and impairment [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:PropertyPlantAndEquipment (label)698110663000iso4217:TWD-3
840001172494 (http://www.sec.gov/CIK)2016-12-31Accumulated depreciation, amortisation and impairment [member] * Other equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)26154173000iso4217:TWD-3
850001172494 (http://www.sec.gov/CIK)2016-12-31Gross carrying amount [member] * Buildings [member]ifrs-full:PropertyPlantAndEquipment (label)130595844000iso4217:TWD-3
860001172494 (http://www.sec.gov/CIK)2016-12-31Gross carrying amount [member] * Property, Plant and Equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)969935995000iso4217:TWD-3
870001172494 (http://www.sec.gov/CIK)2016-12-31Gross carrying amount [member] * Land [Member]ifrs-full:PropertyPlantAndEquipment (label)8873981000iso4217:TWD-3
880001172494 (http://www.sec.gov/CIK)2016-12-31Gross carrying amount [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:PropertyPlantAndEquipment (label)798046434000iso4217:TWD-3
890001172494 (http://www.sec.gov/CIK)2016-12-31Gross carrying amount [member] * Other equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)32419736000iso4217:TWD-3
900001172494 (http://www.sec.gov/CIK)2016-12-31Carrying amount [member] * Prepayments for purchase of land and equipment, and construction in progress [Member]ifrs-full:PropertyPlantAndEquipment (label)13272371000iso4217:TWD-3
910001172494 (http://www.sec.gov/CIK)2017-12-31Carrying amount [member] * Property, Plant and Equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)224933089000iso4217:TWD-3
920001172494 (http://www.sec.gov/CIK)2017-12-31Accumulated depreciation, amortisation and impairment [member] * Property, Plant and Equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)764877366000iso4217:TWD-3
930001172494 (http://www.sec.gov/CIK)2017-12-31Accumulated depreciation, amortisation and impairment [member] * Buildings [member]ifrs-full:PropertyPlantAndEquipment (label)33825375000iso4217:TWD-3
940001172494 (http://www.sec.gov/CIK)2017-12-31Accumulated depreciation, amortisation and impairment [member] * Land [Member]ifrs-full:PropertyPlantAndEquipment (label)0iso4217:TWD-3
950001172494 (http://www.sec.gov/CIK)2017-12-31Accumulated depreciation, amortisation and impairment [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:PropertyPlantAndEquipment (label)707334411000iso4217:TWD-3
960001172494 (http://www.sec.gov/CIK)2017-12-31Accumulated depreciation, amortisation and impairment [member] * Other equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)23717580000iso4217:TWD-3
970001172494 (http://www.sec.gov/CIK)2017-12-31Gross carrying amount [member] * Buildings [member]ifrs-full:PropertyPlantAndEquipment (label)124010869000iso4217:TWD-3
980001172494 (http://www.sec.gov/CIK)2017-12-31Gross carrying amount [member] * Property, Plant and Equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)962542986000iso4217:TWD-3
990001172494 (http://www.sec.gov/CIK)2017-12-31Gross carrying amount [member] * Land [Member]ifrs-full:PropertyPlantAndEquipment (label)9008659000iso4217:TWD-3
1000001172494 (http://www.sec.gov/CIK)2017-12-31Gross carrying amount [member] * auo:MachineryAndEquipmentsMember (label)ifrs-full:PropertyPlantAndEquipment (label)800164310000iso4217:TWD-3
1010001172494 (http://www.sec.gov/CIK)2017-12-31Gross carrying amount [member] * Other equipment [Member]ifrs-full:PropertyPlantAndEquipment (label)29359148000iso4217:TWD-3
1020001172494 (http://www.sec.gov/CIK)2017-12-31Carrying amount [member] * Prepayments for purchase of land and equipment, and construction in progress [Member]ifrs-full:PropertyPlantAndEquipment (label)27267469000iso4217:TWD-3

Fact Table
Network
214 - Disclosure - Property, Plant and Equipment (Details 1)
(http://auo.com/role/PropertyPlantAndEquipmentDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:Level3OfFairValueHierarchyMember (label)auo:SalesDiscountFairValueMeasurementAssetsOfValuationApproach (label)0.15xbrli:pure2
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:Level3OfFairValueHierarchyMember (label)auo:SalesFairValueMeasurementAssetsOfValuationApproachAmount (label)8000000iso4217:JPY-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:Level3OfFairValueHierarchyMember (label)Description of interrelationships between unobservable inputs and of how they might magnify or mitigate effect of changes in unobservable inputs on fair value measurement, assetsthe price per square meter is higher (lower); or the sales discount rates are lower (higher)
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:Level3OfFairValueHierarchyMember (label)Description of valuation techniques used in fair value measurement, assetsSales price of comparable property in close proximity are adjusted for differences in key attributes such as property size. The expected sales price is adjusted with sales discount based on land size. The significant inputs into this valuation approach are price per square meter of comparable properties and sales discount.

Fact Table
Network
215 - Disclosure - Property, Plant and Equipment (Details Textual)
(http://auo.com/role/PropertyPlantAndEquipmentDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]Borrowing costs capitalised186025000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]Borrowing costs capitalised542994000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]Borrowing costs capitalised624235000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Bottom of range [member] * Segments [member] * Entity's total for subsidiaries [member]Capitalisation rate of borrowing costs eligible for capitalisation0.0129xbrli:pure4
50001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Top of range [member] * Segments [member] * Entity's total for subsidiaries [member]Capitalisation rate of borrowing costs eligible for capitalisation0.0673xbrli:pure4
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Bottom of range [member] * Segments [member] * Entity's total for subsidiaries [member]Capitalisation rate of borrowing costs eligible for capitalisation0.0109xbrli:pure4
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Top of range [member] * Segments [member] * Entity's total for subsidiaries [member]Capitalisation rate of borrowing costs eligible for capitalisation0.0466xbrli:pure4
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Bottom of range [member] * Segments [member] * Entity's total for subsidiaries [member]Capitalisation rate of borrowing costs eligible for capitalisation0.0109xbrli:pure4
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Top of range [member] * Segments [member] * Entity's total for subsidiaries [member]Capitalisation rate of borrowing costs eligible for capitalisation0.0524xbrli:pure4
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)585196000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * auo:AuoCrystalCorpMember (label)ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)276769000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)24278000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)330814000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2015-12-01 to 2015-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * AUO [Member]ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)558206000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:ImpairmentLoss (label)7026226000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Assets [member] * Property, Plant and Equipment [Member] * auo:PolysiliconCguMember (label) * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:ImpairmentLoss (label)6755157000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:ImpairmentLoss (label)34733000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:ImpairmentLoss (label)1046668000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * auo:DisplaySegmentMember (label) * Entity's total for subsidiaries [member]Impairment loss recognised in profit or loss, property, plant and equipment172530000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * auo:SolarSegmentMember (label) * Entity's total for subsidiaries [member]Impairment loss recognised in profit or loss, property, plant and equipment101764000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * auo:SolarSegmentMember (label) * Entity's total for subsidiaries [member]Impairment loss recognised in profit or loss, property, plant and equipment34047000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * auo:DisplaySegmentMember (label) * Entity's total for subsidiaries [member]Impairment loss recognised in profit or loss, property, plant and equipment895954000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * auo:SolarSegmentMember (label) * Entity's total for subsidiaries [member]Impairment loss recognised in profit or loss, property, plant and equipment120714000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)1762401000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * auo:AuoCrystalCorpMember (label)ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)790342000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)789682000iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)1149649000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2015-12-01 to 2015-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * AUO [Member]ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)808504000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2015-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:PropertyPlantAndEquipment (label)208785609000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2016-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:PropertyPlantAndEquipment (label)222741832000iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2016-12-31Assets [member] * Non-irrigated farmland [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:PropertyPlantAndEquipment (label)23671000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2017-12-31Assets [member] * Property, Plant and Equipment [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:PropertyPlantAndEquipment (label)224933089000iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2017-12-31Assets [member] * Non-irrigated farmland [Member] * Entity's total for individual assets or cash-generating units [member] * Ranges [member] * Segments [member] * Entity's total for subsidiaries [member]ifrs-full:PropertyPlantAndEquipment (label)23671000iso4217:TWD-3

Fact Table
Network
216 - Disclosure - Investment Property (Details)
(http://auo.com/role/InvestmentPropertyDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31At cost [member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsInvestmentProperty (label)0iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31At cost [member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsInvestmentProperty (label)0iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31At cost [member]ifrs-full:DisposalsInvestmentProperty (label)0iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31At cost [member]ifrs-full:DisposalsInvestmentProperty (label)0iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31At cost [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesInvestmentProperty (label)0iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31At cost [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesInvestmentProperty (label)251955000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-12-31At cost [member]ifrs-full:InvestmentProperty (label)465868000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2015-12-31At fair value [member]ifrs-full:InvestmentProperty (label)1145098000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-12-31Aggregated measurement [member]ifrs-full:InvestmentProperty (label)465868000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2016-12-31At cost [member]ifrs-full:InvestmentProperty (label)465868000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31At fair value [member]ifrs-full:InvestmentProperty (label)1402040000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-12-31Aggregated measurement [member]ifrs-full:InvestmentProperty (label)717823000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-12-31At cost [member]ifrs-full:InvestmentProperty (label)717823000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-12-31At fair value [member]ifrs-full:InvestmentProperty (label)2213184000iso4217:TWD-3

Fact Table
Network
217 - Disclosure - Investment Property (Details 1)
(http://auo.com/role/InvestmentPropertyDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:CapitalizationRateSignificantUnabservableInputsAssets (label)0xbrli:pure0
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:CapitalizationRateSignificantUnabservableInputsAssets (label)0.12xbrli:pure4
30001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:InterestRateSignificantUnobservableInputsAssets (label)0.0206xbrli:pure4
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:InterestRateSignificantUnobservableInputsAssets (label)0.0186xbrli:pure4
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:WeightedAverageCostOfCapitalSignificantUnobservableInputsAssets (label)0.1xbrli:pure3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:WeightedAverageCostOfCapitalSignificantUnobservableInputsAssets (label)0.1xbrli:pure3

Fact Table
Network
218 - Disclosure - Investment Property (Details Textual)
(http://auo.com/role/InvestmentPropertyDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:TransferFromPropertyPlantAndEquipmentToInvestmentProperty (label)251955000iso4217:TWD-3

Fact Table
Network
219 - Disclosure - Intangible Assets (Details)
(http://auo.com/role/IntangibleAssetsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Patent and technology fee [Member]auo:ReclassificationAndEffectOfChangeInExchangeRate (label)-9915000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Patent and technology fee [Member]auo:ReclassificationAndEffectOfChangeInExchangeRate (label)-9915000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Patent and technology fee [Member]auo:ReclassificationAndEffectOfChangeInExchangeRate (label)117000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Patent and technology fee [Member]auo:ReclassificationAndEffectOfChangeInExchangeRate (label)0iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Accumulated depreciation, amortisation and impairment [member] * Patent and technology fee [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)1159465000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Gross carrying amount [member] * Patent and technology fee [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)187020000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Accumulated depreciation, amortisation and impairment [member] * Patent and technology fee [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)628606000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Gross carrying amount [member] * Patent and technology fee [Member]ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)196781000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2015-12-31Carrying amount [member] * Intangible assets other than goodwill [member]ifrs-full:IntangibleAssetsOtherThanGoodwill (label)3294684000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-12-31Accumulated depreciation, amortisation and impairment [member] * Patent and technology fee [Member]ifrs-full:IntangibleAssetsOtherThanGoodwill (label)8606978000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2015-12-31Gross carrying amount [member] * Patent and technology fee [Member]ifrs-full:IntangibleAssetsOtherThanGoodwill (label)11901662000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2016-12-31Carrying amount [member] * Intangible assets other than goodwill [member]ifrs-full:IntangibleAssetsOtherThanGoodwill (label)2322239000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-12-31Accumulated depreciation, amortisation and impairment [member] * Patent and technology fee [Member]ifrs-full:IntangibleAssetsOtherThanGoodwill (label)9756528000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-12-31Gross carrying amount [member] * Patent and technology fee [Member]ifrs-full:IntangibleAssetsOtherThanGoodwill (label)12078767000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-12-31Carrying amount [member] * Intangible assets other than goodwill [member]ifrs-full:IntangibleAssetsOtherThanGoodwill (label)1890297000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-12-31Accumulated depreciation, amortisation and impairment [member] * Patent and technology fee [Member]ifrs-full:IntangibleAssetsOtherThanGoodwill (label)10385251000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2017-12-31Gross carrying amount [member] * Patent and technology fee [Member]ifrs-full:IntangibleAssetsOtherThanGoodwill (label)12275548000iso4217:TWD-3

Fact Table
Network
220 - Disclosure - Other Current Assets and Other Noncurrent Assets (Details)
(http://auo.com/role/OtherCurrentAssetsAndOtherNoncurrentAssetsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Assets [member]Other Assets13369398000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31auo:LongTermReceivablesMember (label)Other Assets1974271000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31Long-term prepaid rents [Member]Other Assets1940489000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31auo:OthersMember (label)Other Assets2481104000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31Prepayment for equipment [Member]Other Assets463910000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-12-31Prepayments for purchases [Member]Other Assets3360869000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-12-31Refundable and overpaid tax [Member]Other Assets3015534000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-12-31auo:RefundableDepositsMember (label)Other Assets133221000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-12-31Assets [member]Other Assets12070634000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-12-31auo:LongTermReceivablesMember (label)Other Assets1790400000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-12-31Long-term prepaid rents [Member]Other Assets1412026000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-12-31auo:OthersMember (label)Other Assets2551070000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-12-31Prepayment for equipment [Member]Other Assets457201000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-12-31Prepayments for purchases [Member]Other Assets2053554000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-12-31Refundable and overpaid tax [Member]Other Assets3291235000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-12-31auo:RefundableDepositsMember (label)Other Assets515148000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-12-31Assets [member]ifrs-full:OtherCurrentAssets (label)6330283000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-12-31Assets [member]ifrs-full:OtherCurrentAssets (label)6631130000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2016-12-31Assets [member]ifrs-full:OtherNoncurrentAssets (label)7039115000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2017-12-31Assets [member]ifrs-full:OtherNoncurrentAssets (label)5439504000iso4217:TWD-3

Fact Table
Network
221 - Disclosure - Short-term Borrowings (Details)
(http://auo.com/role/ShorttermBorrowingsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31auo:ShortTermBorrowingsMember (label) * Bottom of range [member]ifrs-full:BorrowingsInterestRate (label)0.0435xbrli:pure4
20001172494 (http://www.sec.gov/CIK)2016-12-31auo:ShortTermBorrowingsMember (label) * Top of range [member]ifrs-full:BorrowingsInterestRate (label)0.0439xbrli:pure4
30001172494 (http://www.sec.gov/CIK)2017-12-31auo:ShortTermBorrowingsMember (label) * Bottom of range [member]ifrs-full:BorrowingsInterestRate (label)0.0362xbrli:pure4
40001172494 (http://www.sec.gov/CIK)2017-12-31auo:ShortTermBorrowingsMember (label) * Top of range [member]ifrs-full:BorrowingsInterestRate (label)0.0435xbrli:pure4
50001172494 (http://www.sec.gov/CIK)2016-12-31Borrowings by name [member] * Ranges [member]ifrs-full:ShorttermBorrowings (label)526723000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-12-31Unsecured Borrowings [Member] * Ranges [member]ifrs-full:ShorttermBorrowings (label)526723000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31Borrowings by name [member] * Ranges [member]ifrs-full:ShorttermBorrowings (label)3424376000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31Unsecured Borrowings [Member] * Ranges [member]ifrs-full:ShorttermBorrowings (label)3424376000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-12-31Unused Credit Facility [Member] * Ranges [member]ifrs-full:UndrawnBorrowingFacilities (label)33877442000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-12-31Unused Credit Facility [Member] * Ranges [member]ifrs-full:UndrawnBorrowingFacilities (label)35866924000iso4217:TWD-3

Fact Table
Network
222 - Disclosure - Convertible Bonds Payable (Details Textual)
(http://auo.com/role/ConvertibleBondsPayableDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2010-10-13Unsecured overseas convertible corporate bonds [Member]auo:ConvertibleBondsCouponRate (label)0xbrli:pure0
20001172494 (http://www.sec.gov/CIK)2010-10-01 to 2010-10-13Unsecured overseas convertible corporate bonds [Member]auo:ConvertibleBondsMaturity (label)5 Years
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Unsecured overseas convertible corporate bonds [Member]auo:PurchaseAmountOfConvertibleBonds (label)461015000iso4217:USD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Unsecured overseas convertible corporate bonds [Member]auo:PurchaseOfConvertibleBondsParValue (label)399700000iso4217:USD-3
50001172494 (http://www.sec.gov/CIK)2015-10-13Unsecured overseas convertible corporate bonds [Member]auo:RedemptionPricePercentage (label)1.1534xbrli:pure4
60001172494 (http://www.sec.gov/CIK)2010-10-13Unsecured overseas convertible corporate bonds [Member]Notional amount800000000iso4217:USD-3
70001172494 (http://www.sec.gov/CIK)2015-10-13Unsecured overseas convertible corporate bonds [Member]Notional amount14500000iso4217:USD-3

Fact Table
Network
223 - Disclosure - Long-term Borrowings (Details)
(http://auo.com/role/LongtermBorrowingsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * Liabilities arising from financing activities [member] * Aggregated time bands [member] * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)124745609000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodEightMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)21216394000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodFiveMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)7596757000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodFourMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)23672000000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31Unsecured Loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodNineMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)16005955000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodOneMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)25800000000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodSevenMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)2358776000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodSixMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)3000000000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-12-31Mortgage Loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodTenMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)95727000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2016-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodThreeMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)0iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodTwoMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)25000000000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * Liabilities arising from financing activities [member] * Aggregated time bands [member] * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)111044973000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodEightMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)27800680000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodFiveMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)0iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodFourMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)0iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-12-31Unsecured Loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodNineMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)10203390000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2017-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodOneMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)22704000000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodSevenMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)0iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2017-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodSixMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)2395868000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2017-12-31Mortgage Loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodTenMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)441035000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodThreeMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)10000000000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-12-31Syndicated loans [Member] * Liabilities arising from financing activities [member] * auo:MaturityPeriodTwoMember (label) * Ranges [member]auo:CurrentAndNonCurrentPortionOfLongTermBarrowings (label)37500000000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * Liabilities arising from financing activities [member] * Aggregated time bands [member] * Ranges [member]auo:UnamortizedBorrowingCosts (label)482989000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * Liabilities arising from financing activities [member] * Aggregated time bands [member] * Ranges [member]auo:UnamortizedBorrowingCosts (label)436963000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * Liabilities arising from financing activities [member] * Aggregated time bands [member] * Ranges [member]Borrowings124262620000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * Liabilities arising from financing activities [member] * Aggregated time bands [member] * Ranges [member]Borrowings110608010000iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * Long-term borrowings [member] * Aggregated time bands [member] * Bottom of range [member]ifrs-full:BorrowingsInterestRate (label)0.0109xbrli:pure4
280001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * Long-term borrowings [member] * Aggregated time bands [member] * Top of range [member]ifrs-full:BorrowingsInterestRate (label)0.049xbrli:pure4
290001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * Long-term borrowings [member] * Aggregated time bands [member] * Bottom of range [member]ifrs-full:BorrowingsInterestRate (label)0.0125xbrli:pure4
300001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * Long-term borrowings [member] * Aggregated time bands [member] * Top of range [member]ifrs-full:BorrowingsInterestRate (label)0.0516xbrli:pure4
310001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * Liabilities arising from financing activities [member] * Aggregated time bands [member] * Ranges [member]ifrs-full:CurrentPortionOfLongtermBorrowings (label)18074627000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * Liabilities arising from financing activities [member] * Aggregated time bands [member] * Ranges [member]ifrs-full:CurrentPortionOfLongtermBorrowings (label)8155234000iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * Liabilities arising from financing activities [member] * Aggregated time bands [member] * Ranges [member]ifrs-full:LongtermBorrowings (label)106187993000iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * Liabilities arising from financing activities [member] * Aggregated time bands [member] * Ranges [member]ifrs-full:LongtermBorrowings (label)102452776000iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * Long-term borrowings [member] * Aggregated time bands [member] * Ranges [member]ifrs-full:UndrawnBorrowingFacilities (label)43228323000iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * Long-term borrowings [member] * Aggregated time bands [member] * Ranges [member]ifrs-full:UndrawnBorrowingFacilities (label)37220839000iso4217:TWD-3

Fact Table
Network
224 - Disclosure - Long-term Borrowings (Details 1)
(http://auo.com/role/LongtermBorrowingsDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:LiabilitiesArisingFromFinancingActivitieDomain (label)ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)-1114381000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:GuaranteeDepositsMember (label)ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)34873000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:LongtermBorrowing1Member (label)ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)-1142980000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ShorttermBorrowingMember (label)ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)-6274000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:LiabilitiesArisingFromFinancingActivitieDomain (label)ifrs-full:IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities (label)-9701925000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:GuaranteeDepositsMember (label)ifrs-full:IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities (label)-34654000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:LongtermBorrowing1Member (label)ifrs-full:IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities (label)-12571198000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ShorttermBorrowingMember (label)ifrs-full:IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities (label)2903927000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:LiabilitiesArisingFromFinancingActivitieDomain (label)ifrs-full:IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities (label)-84187000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:GuaranteeDepositsMember (label)ifrs-full:IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities (label)0iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:LongtermBorrowing1Member (label)ifrs-full:IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities (label)-84187000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ShorttermBorrowingMember (label)ifrs-full:IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities (label)0iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:LiabilitiesArisingFromFinancingActivitieDomain (label)ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)143755000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:GuaranteeDepositsMember (label)ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)0iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:LongtermBorrowing1Member (label)ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)143755000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ShorttermBorrowingMember (label)ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)0iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-12-31auo:LiabilitiesArisingFromFinancingActivitieDomain (label)ifrs-full:LiabilitiesArisingFromFinancingActivities (label)125627606000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2016-12-31auo:GuaranteeDepositsMember (label)ifrs-full:LiabilitiesArisingFromFinancingActivities (label)838263000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2016-12-31auo:LongtermBorrowing1Member (label)ifrs-full:LiabilitiesArisingFromFinancingActivities (label)124262620000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-12-31auo:ShorttermBorrowingMember (label)ifrs-full:LiabilitiesArisingFromFinancingActivities (label)526723000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-12-31auo:LiabilitiesArisingFromFinancingActivitieDomain (label)ifrs-full:LiabilitiesArisingFromFinancingActivities (label)114870868000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-12-31auo:GuaranteeDepositsMember (label)ifrs-full:LiabilitiesArisingFromFinancingActivities (label)838482000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2017-12-31auo:LongtermBorrowing1Member (label)ifrs-full:LiabilitiesArisingFromFinancingActivities (label)110608010000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2017-12-31auo:ShorttermBorrowingMember (label)ifrs-full:LiabilitiesArisingFromFinancingActivities (label)3424376000iso4217:TWD-3

Fact Table
Network
225 - Disclosure - Provisions (Details)
(http://auo.com/role/ProvisionsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Other provisions [member]ifrs-full:AdditionalProvisionsOtherProvisions (label)906800000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:AdditionalProvisionsOtherProvisions (label)597325000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:AdditionalProvisionsOtherProvisions (label)0iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:AdditionalProvisionsOtherProvisions (label)309475000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Other provisions [member]ifrs-full:AdditionalProvisionsOtherProvisions (label)531755000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:AdditionalProvisionsOtherProvisions (label)90945000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:AdditionalProvisionsOtherProvisions (label)4346000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:AdditionalProvisionsOtherProvisions (label)436464000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-12-31Other provisions [member]ifrs-full:CurrentProvisions (label)1783407000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:CurrentProvisions (label)1027328000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:CurrentProvisions (label)0iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:CurrentProvisions (label)756079000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-12-31Other provisions [member]ifrs-full:CurrentProvisions (label)819232000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:CurrentProvisions (label)89520000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:CurrentProvisions (label)4346000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:CurrentProvisions (label)725366000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Other provisions [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions (label)-189612000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions (label)-182954000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions (label)-6653000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions (label)-5000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Other provisions [member]ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions (label)-23898000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions (label)-3721000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions (label)-20308000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions (label)131000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2016-12-31Other provisions [member]ifrs-full:NoncurrentProvisions (label)1038264000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:NoncurrentProvisions (label)0iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:NoncurrentProvisions (label)265445000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:NoncurrentProvisions (label)772819000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2017-12-31Other provisions [member]ifrs-full:NoncurrentProvisions (label)1066731000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:NoncurrentProvisions (label)0iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:NoncurrentProvisions (label)245137000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:NoncurrentProvisions (label)821594000iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2015-12-31Other provisions [member]ifrs-full:OtherProvisions (label)6136336000iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:OtherProvisions (label)4018880000iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:OtherProvisions (label)297937000iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:OtherProvisions (label)1819519000iso4217:TWD-3
370001172494 (http://www.sec.gov/CIK)2016-12-31Other provisions [member]ifrs-full:OtherProvisions (label)2821671000iso4217:TWD-3
380001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:OtherProvisions (label)1027328000iso4217:TWD-3
390001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:OtherProvisions (label)265445000iso4217:TWD-3
400001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:OtherProvisions (label)1528898000iso4217:TWD-3
410001172494 (http://www.sec.gov/CIK)2017-12-31Other provisions [member]ifrs-full:OtherProvisions (label)1885963000iso4217:TWD-3
420001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:OtherProvisions (label)89520000iso4217:TWD-3
430001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:OtherProvisions (label)249483000iso4217:TWD-3
440001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:OtherProvisions (label)1546960000iso4217:TWD-3
450001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Other provisions [member]ifrs-full:ProvisionUsedOtherProvisions (label)3671840000iso4217:TWD-3
460001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:ProvisionUsedOtherProvisions (label)3405923000iso4217:TWD-3
470001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:ProvisionUsedOtherProvisions (label)0iso4217:TWD-3
480001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:ProvisionUsedOtherProvisions (label)265917000iso4217:TWD-3
490001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Other provisions [member]ifrs-full:ProvisionUsedOtherProvisions (label)1322861000iso4217:TWD-3
500001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:ProvisionUsedOtherProvisions (label)1025032000iso4217:TWD-3
510001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:ProvisionUsedOtherProvisions (label)0iso4217:TWD-3
520001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:ProvisionUsedOtherProvisions (label)297829000iso4217:TWD-3
530001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Other provisions [member]ifrs-full:UnusedProvisionReversedOtherProvisions (label)360013000iso4217:TWD-3
540001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:UnusedProvisionReversedOtherProvisions (label)0iso4217:TWD-3
550001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:UnusedProvisionReversedOtherProvisions (label)25839000iso4217:TWD-3
560001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:UnusedProvisionReversedOtherProvisions (label)334174000iso4217:TWD-3
570001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Other provisions [member]ifrs-full:UnusedProvisionReversedOtherProvisions (label)120704000iso4217:TWD-3
580001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:LegalProceedingsProvisionMember (label)ifrs-full:UnusedProvisionReversedOtherProvisions (label)0iso4217:TWD-3
590001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:MiscellaneousOtherProvisionsMember (label)ifrs-full:UnusedProvisionReversedOtherProvisions (label)0iso4217:TWD-3
600001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:WarrantyProvisionMember (label)ifrs-full:UnusedProvisionReversedOtherProvisions (label)120704000iso4217:TWD-3

Fact Table
Network
226 - Disclosure - Operating Leases (Details)
(http://auo.com/role/OperatingLeasesDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Aggregated time bands [member]Minimum lease payments payable under non-cancellable operating lease8338750000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LaterThanFiveYearsMember (label)Minimum lease payments payable under non-cancellable operating lease4011338000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember (label)Minimum lease payments payable under non-cancellable operating lease3483532000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:NotLaterThanOneYearMember (label)Minimum lease payments payable under non-cancellable operating lease843880000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31Aggregated time bands [member]Minimum lease payments payable under non-cancellable operating lease7420631000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LaterThanFiveYearsMember (label)Minimum lease payments payable under non-cancellable operating lease3491748000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember (label)Minimum lease payments payable under non-cancellable operating lease3070676000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:NotLaterThanOneYearMember (label)Minimum lease payments payable under non-cancellable operating lease858207000iso4217:TWD-3

Fact Table
Network
227 - Disclosure - Operating Leases (Details 1)
(http://auo.com/role/OperatingLeasesDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Aggregated time bands [member]Minimum lease payments receivable under non-cancellable operating lease127490000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LaterThanFiveYearsMember (label)Minimum lease payments receivable under non-cancellable operating lease87230000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember (label)Minimum lease payments receivable under non-cancellable operating lease32208000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:NotLaterThanOneYearMember (label)Minimum lease payments receivable under non-cancellable operating lease8052000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31Aggregated time bands [member]Minimum lease payments receivable under non-cancellable operating lease2641169000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LaterThanFiveYearsMember (label)Minimum lease payments receivable under non-cancellable operating lease2189936000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember (label)Minimum lease payments receivable under non-cancellable operating lease404695000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:NotLaterThanOneYearMember (label)Minimum lease payments receivable under non-cancellable operating lease46538000iso4217:TWD-3

Fact Table
Network
228 - Disclosure - Operating Leases (Details Textual)
(http://auo.com/role/OperatingLeasesDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Hsinchu Science Park Administration Bureaus [Member]Description of material leasing arrangements by lessee classified as operating lease20 years
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for related parties [member]Lease and sublease payments recognised as expense1115570000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for related parties [member]Lease and sublease payments recognised as expense1178774000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for related parties [member]Lease and sublease payments recognised as expense1081731000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for related parties [member]ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)33440160000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for related parties [member]ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)46220129000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for related parties [member]ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)43881660000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Tainan Technology Industrial Park [Member]ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)558956000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for related parties [member]ifrs-full:RepairsAndMaintenanceExpense (label)403000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for related parties [member]ifrs-full:RepairsAndMaintenanceExpense (label)449000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for related parties [member]ifrs-full:RepairsAndMaintenanceExpense (label)18396000iso4217:TWD-3

Fact Table
Network
229 - Disclosure - Employee Benefits (Details)
(http://auo.com/role/EmployeeBenefitsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:DefinedBenefitObligationAtPresentValue (label)3027176000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:DefinedBenefitObligationAtPresentValue (label)3128927000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-12-31nullifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)753673000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)921486000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)915909000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:PlanAssetsAtFairValue (label)2105690000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:PlanAssetsAtFairValue (label)2213018000iso4217:TWD-3

Fact Table
Network
230 - Disclosure - Employee Benefits (Details 1)
(http://auo.com/role/EmployeeBenefitsDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Net defined benefit liability (asset) [member]auo:DefinedBenefitPlanIncludedInProfitLoss (label)33132000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PlanAssetsMember (label)auo:DefinedBenefitPlanIncludedInProfitLoss (label)-39054000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)auo:DefinedBenefitPlanIncludedInProfitLoss (label)72186000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Net defined benefit liability (asset) [member]auo:DefinedBenefitPlanIncludedInProfitLoss (label)21964000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PlanAssetsMember (label)auo:DefinedBenefitPlanIncludedInProfitLoss (label)-37902000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)auo:DefinedBenefitPlanIncludedInProfitLoss (label)59866000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Net defined benefit liability (asset) [member]auo:ReturnOnPlanAssetsExcludingInterestIncomeNetDefinedBenefitLiabilityAsset (label)-21081000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PlanAssetsMember (label)auo:ReturnOnPlanAssetsExcludingInterestIncomeNetDefinedBenefitLiabilityAsset (label)-21081000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)auo:ReturnOnPlanAssetsExcludingInterestIncomeNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Net defined benefit liability (asset) [member]auo:ReturnOnPlanAssetsExcludingInterestIncomeNetDefinedBenefitLiabilityAsset (label)-16345000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PlanAssetsMember (label)auo:ReturnOnPlanAssetsExcludingInterestIncomeNetDefinedBenefitLiabilityAsset (label)-16345000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)auo:ReturnOnPlanAssetsExcludingInterestIncomeNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Net defined benefit liability (asset) [member]ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset (label)-51349000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset (label)-51349000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Net defined benefit liability (asset) [member]ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset (label)-21054000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset (label)-21054000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Net defined benefit liability (asset) [member]ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset (label)-244142000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset (label)-244142000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Net defined benefit liability (asset) [member]ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset (label)-126708000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset (label)-126708000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Net defined benefit liability (asset) [member]ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset (label)91378000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset (label)91378000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Net defined benefit liability (asset) [member]ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset (label)66016000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset (label)66016000iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Net defined benefit liability (asset) [member]ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset (label)-103761000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset (label)-103761000iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Net defined benefit liability (asset) [member]ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset (label)-102870000iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset (label)-102870000iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
370001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Net defined benefit liability (asset) [member]ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset (label)18227000iso4217:TWD-3
380001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
390001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset (label)18227000iso4217:TWD-3
400001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Net defined benefit liability (asset) [member]ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset (label)6242000iso4217:TWD-3
410001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
420001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset (label)6242000iso4217:TWD-3
430001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Net defined benefit liability (asset) [member]ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset (label)-47321000iso4217:TWD-3
440001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset (label)-47000000iso4217:TWD-3
450001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset (label)-321000iso4217:TWD-3
460001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Net defined benefit liability (asset) [member]ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset (label)2333000iso4217:TWD-3
470001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
480001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset (label)2333000iso4217:TWD-3
490001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Net defined benefit liability (asset) [member]ifrs-full:IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset (label)90513000iso4217:TWD-3
500001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset (label)28318000iso4217:TWD-3
510001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset (label)62195000iso4217:TWD-3
520001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Net defined benefit liability (asset) [member]ifrs-full:IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset (label)125632000iso4217:TWD-3
530001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset (label)85771000iso4217:TWD-3
540001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset (label)39861000iso4217:TWD-3
550001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Net defined benefit liability (asset) [member]ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)53959000iso4217:TWD-3
560001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
570001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)53959000iso4217:TWD-3
580001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Net defined benefit liability (asset) [member]ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)53624000iso4217:TWD-3
590001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
600001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)53624000iso4217:TWD-3
610001172494 (http://www.sec.gov/CIK)2015-12-31Net defined benefit liability (asset) [member]ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)753673000iso4217:TWD-3
620001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)-2059399000iso4217:TWD-3
630001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)2813072000iso4217:TWD-3
640001172494 (http://www.sec.gov/CIK)2016-12-31Net defined benefit liability (asset) [member]ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)921486000iso4217:TWD-3
650001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)-2105690000iso4217:TWD-3
660001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)3027176000iso4217:TWD-3
670001172494 (http://www.sec.gov/CIK)2017-12-31Net defined benefit liability (asset) [member]ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)915909000iso4217:TWD-3
680001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)-2213018000iso4217:TWD-3
690001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)3128927000iso4217:TWD-3
700001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Net defined benefit liability (asset) [member]ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)-251401000iso4217:TWD-3
710001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Net defined benefit liability (asset) [member]ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)-225194000iso4217:TWD-3
720001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)-21081000iso4217:TWD-3
730001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)-204113000iso4217:TWD-3
740001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Net defined benefit liability (asset) [member]ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)-98091000iso4217:TWD-3
750001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)-16345000iso4217:TWD-3
760001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)-81746000iso4217:TWD-3
770001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Net defined benefit liability (asset) [member]ifrs-full:PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset (label)-34073000iso4217:TWD-3
780001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset (label)28443000iso4217:TWD-3
790001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset (label)-62516000iso4217:TWD-3
800001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Net defined benefit liability (asset) [member]ifrs-full:PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset (label)-20429000iso4217:TWD-3
810001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset (label)17099000iso4217:TWD-3
820001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset (label)-37528000iso4217:TWD-3
830001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Net defined benefit liability (asset) [member]ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset (label)39054000iso4217:TWD-3
840001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset (label)39054000iso4217:TWD-3
850001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3
860001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Net defined benefit liability (asset) [member]ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset (label)37902000iso4217:TWD-3
870001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PlanAssetsMember (label)ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset (label)37902000iso4217:TWD-3
880001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset (label)0iso4217:TWD-3

Fact Table
Network
231 - Disclosure - Employee Benefits (Details 2)
(http://auo.com/role/EmployeeBenefitsDetails2)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Bottom of range [member]ifrs-full:ActuarialAssumptionOfDiscountRates (label)0.0033xbrli:pure4
20001172494 (http://www.sec.gov/CIK)2016-12-31Top of range [member]ifrs-full:ActuarialAssumptionOfDiscountRates (label)0.018xbrli:pure4
30001172494 (http://www.sec.gov/CIK)2017-12-31Bottom of range [member]ifrs-full:ActuarialAssumptionOfDiscountRates (label)0.0021xbrli:pure4
40001172494 (http://www.sec.gov/CIK)2017-12-31Top of range [member]ifrs-full:ActuarialAssumptionOfDiscountRates (label)0.016xbrli:pure4
50001172494 (http://www.sec.gov/CIK)2016-12-31Bottom of range [member]ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases (label)0.0119xbrli:pure4
60001172494 (http://www.sec.gov/CIK)2016-12-31Top of range [member]ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases (label)0.0379xbrli:pure4
70001172494 (http://www.sec.gov/CIK)2017-12-31Bottom of range [member]ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases (label)0.0077xbrli:pure4
80001172494 (http://www.sec.gov/CIK)2017-12-31Top of range [member]ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases (label)0.0449xbrli:pure4

Fact Table
Network
232 - Disclosure - Employee Benefits (Details 3)
(http://auo.com/role/EmployeeBenefitsDetails3)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Actuarial assumption of discount rates [member]ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption (label)166453000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31Actuarial assumption of expected rates of salary increases [member]ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption (label)-155466000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-12-31Actuarial assumption of discount rates [member]ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption (label)167594000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-12-31Actuarial assumption of expected rates of salary increases [member]ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption (label)-156470000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31Actuarial assumption of discount rates [member]ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption (label)-156764000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-12-31Actuarial assumption of expected rates of salary increases [member]ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption (label)164140000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31Actuarial assumption of discount rates [member]ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption (label)-158160000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31Actuarial assumption of expected rates of salary increases [member]ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption (label)164867000iso4217:TWD-3

Fact Table
Network
233 - Disclosure - Employee Benefits (Details Textual)
(http://auo.com/role/EmployeeBenefitsDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-12-31Defined benefit plans [member] * Ranges [member]Assets of benefit plan2213018000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Defined benefit plans [member] * Ranges [member]Employee benefits expense41303258000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:DomesticDefinedBenefitPlansMember (label) * Ranges [member]Employee benefits expense927083000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:ForeignDefinedBenefitPlansMember (label) * Ranges [member]Employee benefits expense1400994000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Defined benefit plans [member] * Ranges [member]Employee benefits expense40210924000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:DomesticDefinedBenefitPlansMember (label) * Ranges [member]Employee benefits expense936923000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:ForeignDefinedBenefitPlansMember (label) * Ranges [member]Employee benefits expense1127958000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Defined benefit plans [member] * Ranges [member]Employee benefits expense44900469000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:DomesticDefinedBenefitPlansMember (label) * Ranges [member]Employee benefits expense1003063000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:ForeignDefinedBenefitPlansMember (label) * Ranges [member]Employee benefits expense892109000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Defined benefit plans [member] * Ranges [member]Estimate of contributions expected to be paid to plan for next annual reporting period102869000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Defined benefit plans [member] * Ranges [member]Gains (losses) arising from settlements, net defined benefit liability (asset)8967000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Defined benefit plans [member] * Ranges [member]Termination benefits expense47000000iso4217:TWD-3

Fact Table
Network
234 - Disclosure - Capital and Other Components of Equity (Details)
(http://auo.com/role/CapitalAndOtherComponentsOfEquityDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Miscellaneous Component Of Equity [Domain] * Share capital [member]ifrs-full:SharePremium (label)59977743000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:MiscellaneousOtherReservesMember (label) * Share capital [member]ifrs-full:SharePremium (label)1171790000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31Miscellaneous Component Of Equity [Domain] * ifrs-full:OrdinarySharesMember (label)ifrs-full:SharePremium (label)52756091000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:ReserveOfEquityComponentOfConvertibleInstrumentsMember (label) * Share capital [member]ifrs-full:SharePremium (label)6049862000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31Miscellaneous Component Of Equity [Domain] * Share capital [member]ifrs-full:SharePremium (label)60538505000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:MiscellaneousOtherReservesMember (label) * Share capital [member]ifrs-full:SharePremium (label)1732552000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31Miscellaneous Component Of Equity [Domain] * ifrs-full:OrdinarySharesMember (label)ifrs-full:SharePremium (label)52756091000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:ReserveOfEquityComponentOfConvertibleInstrumentsMember (label) * Share capital [member]ifrs-full:SharePremium (label)6049862000iso4217:TWD-3

Fact Table
Network
235 - Disclosure - Capital and Other Components of Equity (Details 1)
(http://auo.com/role/CapitalAndOtherComponentsOfEquityDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:AppropriationOfEarnings (label)3861682000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:AppropriationOfEarnings (label)6171471000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:AppropriationOfEarnings (label)17672310000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:IncreaseDecreaseThroughTransferToLegalReserve (label)493196000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:IncreaseDecreaseThroughTransferToLegalReserve (label)781894000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:IncreaseDecreaseThroughTransferToLegalReserve (label)3235942000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:DividendsPaidOrdinarySharesPerShare (label)0.35iso4217:TWD/xbrli:shares2
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:DividendsPaidOrdinarySharesPerShare (label)0.56iso4217:TWD/xbrli:shares2
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DividendsPaidOrdinarySharesPerShare (label)1.5iso4217:TWD/xbrli:shares2
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners (label)3368486000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners (label)5389577000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners (label)14436368000iso4217:TWD-3

Fact Table
Network
236 - Disclosure - Capital and Other Components of Equity (Details 2)
(http://auo.com/role/CapitalAndOtherComponentsOfEquityDetails2)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)-3647000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)0iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)-3647000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)0iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)7199000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)0iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)7199000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)0iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)-21992000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)0iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)-21992000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)0iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax (label)405731000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax (label)405731000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax (label)0iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax (label)0iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax (label)-5510836000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax (label)-5510836000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax (label)0iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax (label)0iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax (label)-1882545000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax (label)-1882545000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax (label)0iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax (label)0iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax (label)-521173000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax (label)0iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax (label)0iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax (label)-521173000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax (label)769410000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax (label)0iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax (label)0iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax (label)769410000iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax (label)1146422000iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax (label)0iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax (label)0iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax (label)1146422000iso4217:TWD-3
370001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)2663000iso4217:TWD-3
380001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)2663000iso4217:TWD-3
390001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
400001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
410001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Miscellaneous Component Of Equity [Domain] * Equity [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)230202000iso4217:TWD-3
420001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)109657000iso4217:TWD-3
430001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)109657000iso4217:TWD-3
440001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
450001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
460001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Miscellaneous Component Of Equity [Domain] * Equity [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)472302000iso4217:TWD-3
470001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)299207000iso4217:TWD-3
480001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)299207000iso4217:TWD-3
490001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
500001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
510001172494 (http://www.sec.gov/CIK)2014-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:OtherReserves (label)5813709000iso4217:TWD-3
520001172494 (http://www.sec.gov/CIK)2014-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:OtherReserves (label)5766162000iso4217:TWD-3
530001172494 (http://www.sec.gov/CIK)2014-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:OtherReserves (label)18440000iso4217:TWD-3
540001172494 (http://www.sec.gov/CIK)2014-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:OtherReserves (label)29107000iso4217:TWD-3
550001172494 (http://www.sec.gov/CIK)2015-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:OtherReserves (label)6015336000iso4217:TWD-3
560001172494 (http://www.sec.gov/CIK)2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:OtherReserves (label)6540196000iso4217:TWD-3
570001172494 (http://www.sec.gov/CIK)2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:OtherReserves (label)14793000iso4217:TWD-3
580001172494 (http://www.sec.gov/CIK)2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:OtherReserves (label)-539653000iso4217:TWD-3
590001172494 (http://www.sec.gov/CIK)2016-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:OtherReserves (label)777297000iso4217:TWD-3
600001172494 (http://www.sec.gov/CIK)2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:OtherReserves (label)531006000iso4217:TWD-3
610001172494 (http://www.sec.gov/CIK)2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:OtherReserves (label)21992000iso4217:TWD-3
620001172494 (http://www.sec.gov/CIK)2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:OtherReserves (label)224299000iso4217:TWD-3
630001172494 (http://www.sec.gov/CIK)2017-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:OtherReserves (label)256062000iso4217:TWD-3
640001172494 (http://www.sec.gov/CIK)2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:OtherReserves (label)-1120969000iso4217:TWD-3
650001172494 (http://www.sec.gov/CIK)2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:OtherReserves (label)0iso4217:TWD-3
660001172494 (http://www.sec.gov/CIK)2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:OtherReserves (label)1377031000iso4217:TWD-3
670001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsBeforeTax (label)174562000iso4217:TWD-3
680001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsBeforeTax (label)104905000iso4217:TWD-3
690001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsBeforeTax (label)0iso4217:TWD-3
700001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsBeforeTax (label)69657000iso4217:TWD-3
710001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsBeforeTax (label)268725000iso4217:TWD-3
720001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsBeforeTax (label)265849000iso4217:TWD-3
730001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsBeforeTax (label)0iso4217:TWD-3
740001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsBeforeTax (label)2876000iso4217:TWD-3
750001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax (label)492615000iso4217:TWD-3
760001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax (label)470545000iso4217:TWD-3
770001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax (label)0iso4217:TWD-3
780001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax (label)22070000iso4217:TWD-3
790001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax (label)-344744000iso4217:TWD-3
800001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax (label)-342162000iso4217:TWD-3
810001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax (label)0iso4217:TWD-3
820001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax (label)-2582000iso4217:TWD-3
830001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * Equity [Member]ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax (label)-62327000iso4217:TWD-3
840001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember (label)ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax (label)-68637000iso4217:TWD-3
850001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember (label)ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax (label)0iso4217:TWD-3
860001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31AOCI Attributable to Parent [Member] * ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember (label)ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax (label)6310000iso4217:TWD-3

Fact Table
Network
237 - Disclosure - Capital and Other Components of Equity (Details 3)
(http://auo.com/role/CapitalAndOtherComponentsOfEquityDetails3)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:AdjustmentOfChangesInOwnershipOfNoncontrollingInterests (label)-262229000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:AdjustmentOfChangesInOwnershipOfNoncontrollingInterests (label)-191394000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:AdjustmentOfChangesInOwnershipOfNoncontrollingInterests (label)-6421000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:EffectOfAcquisitionOfNoncontrollingInterests (label)-5245698000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:EffectOfAcquisitionOfNoncontrollingInterests (label)37036000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:EffectOfAcquisitionOfNoncontrollingInterests (label)0iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:ForeignCurrencyTranslationDifferencesAttributableToNoncontrollingInterest (label)-680218000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:ForeignCurrencyTranslationDifferencesAttributableToNoncontrollingInterest (label)-1867168000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:ForeignCurrencyTranslationDifferencesAttributableToNoncontrollingInterest (label)-355700000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:NoncontrollingInterestsOtherAdjustments (label)-328246000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:NoncontrollingInterestsOtherAdjustments (label)-170961000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:NoncontrollingInterestsOtherAdjustments (label)-107454000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:RemeasurementOfDefinedBenefitPlansAttributableToNoncontrollingInterests (label)-5003000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:RemeasurementOfDefinedBenefitPlansAttributableToNoncontrollingInterests (label)98000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:RemeasurementOfDefinedBenefitPlansAttributableToNoncontrollingInterests (label)-201000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2014-12-31nullifrs-full:NoncontrollingInterests (label)19329254000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2015-12-31nullifrs-full:NoncontrollingInterests (label)22648604000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:NoncontrollingInterests (label)18388204000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:NoncontrollingInterests (label)17068501000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:PaymentsFromChangesInOwnershipInterestsInSubsidiaries (label)0iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:PaymentsFromChangesInOwnershipInterestsInSubsidiaries (label)0iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:PaymentsFromChangesInOwnershipInterestsInSubsidiaries (label)1258788000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:PaymentsToAcquireOrRedeemEntitysShares (label)-227676000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:PaymentsToAcquireOrRedeemEntitysShares (label)-865633000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:PaymentsToAcquireOrRedeemEntitysShares (label)0iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProceedsFromContributionsOfNoncontrollingInterests (label)10086575000iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProceedsFromContributionsOfNoncontrollingInterests (label)9590000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProceedsFromContributionsOfNoncontrollingInterests (label)11620000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProfitLossAttributableToNoncontrollingInterests (label)-28161000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProfitLossAttributableToNoncontrollingInterests (label)-1211772000iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProfitLossAttributableToNoncontrollingInterests (label)-2120737000iso4217:TWD-3

Fact Table
Network
238 - Disclosure - Capital and Other Components of Equity (Details Textual)
(http://auo.com/role/CapitalAndOtherComponentsOfEquityDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Share capital [member]auo:AuthorizedCapital (label)100000000000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-12-31Share capital [member]auo:AuthorizedCapital (label)100000000000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-12-31Share capital [member]auo:CapitalSurplusCapitalizedRate (label)0.1xbrli:pure1
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Share capital [member]auo:DescriptionOfDistributionOfEarningsAndDividendPolicy (label)If the current-year retained earnings available for distribution reaches 2% of the paid-in capital of AUO, dividend to be distributed shall be no less than 20% of the current-year retained earnings available for distribution. If the current-year retained earnings available for distribution does not reach 2% of the paid-in capital of AUO, AUO may decide not to distribute dividend. The cash portion of the dividend, which may be in the form of cash and stock, shall not be less than 10% of the total dividend distributed during the year.
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Share capital [member]auo:LegalReserveDistributionDescription (label)According to the ROC Company Act, 10 percent of the annual earnings after payment of income taxes due and offsetting accumulated deficits, if any, shall be allocated as legal reserve until the accumulated legal reserve equals the paid-in capital. When a company incurs no loss, it may, pursuant to a resolution to be adopted by a shareholders meeting, distribute its legal reserve by issuing new shares or by cash, only the portion of legal reserve which exceeds 25 percent of the paid-in capital may be distributed.
60001172494 (http://www.sec.gov/CIK)2017-12-31auo:AmericanDepositarySharesMember (label)auo:NumberOfOrdinarySharesRepresented (label)388863000xbrli:shares-3
70001172494 (http://www.sec.gov/CIK)2016-12-31Share capital [member]ifrs-full:IssuedCapital (label)96242451000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31Share capital [member]ifrs-full:IssuedCapital (label)96242451000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-12-31auo:AmericanDepositarySharesMember (label)Number of shares issued38886000xbrli:shares-3
100001172494 (http://www.sec.gov/CIK)2016-12-31Share capital [member]Par value per share10iso4217:TWD/xbrli:shares0
110001172494 (http://www.sec.gov/CIK)2017-12-31Share capital [member]Par value per share10iso4217:TWD/xbrli:shares0

Fact Table
Network
239 - Disclosure - Share-based Payments (Details)
(http://auo.com/role/SharebasedPaymentsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-12-31DPTW Option Plan [Member] * auo:EmployeeStockOptionPlan2011Member (label)ifrs-full:NumberOfOutstandingShareOptions (label)3880000auo:Numberofunits0
20001172494 (http://www.sec.gov/CIK)2016-12-31DPTW Option Plan [Member] * auo:EmployeeStockOptionPlan2011Member (label)ifrs-full:NumberOfOutstandingShareOptions (label)2913000auo:Numberofunits0
30001172494 (http://www.sec.gov/CIK)2017-12-31DPTW Option Plan [Member] * auo:EmployeeStockOptionPlan2011Member (label)ifrs-full:NumberOfOutstandingShareOptions (label)0auo:Numberofunits0
40001172494 (http://www.sec.gov/CIK)2016-12-31DPTW Option Plan [Member] * auo:EmployeeStockOptionPlan2011Member (label)ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement (label)2913000auo:Numberofunits0
50001172494 (http://www.sec.gov/CIK)2017-12-31DPTW Option Plan [Member] * auo:EmployeeStockOptionPlan2011Member (label)ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement (label)0auo:Numberofunits0
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31DPTW Option Plan [Member] * auo:EmployeeStockOptionPlan2011Member (label)ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement (label)967000auo:Numberofunits0
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31DPTW Option Plan [Member] * auo:EmployeeStockOptionPlan2011Member (label)ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement (label)2913000auo:Numberofunits0
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31DPTW Option Plan [Member] * auo:EmployeeStockOptionPlan2011Member (label)ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement (label)0iso4217:TWD0
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31DPTW Option Plan [Member] * auo:EmployeeStockOptionPlan2011Member (label)ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement (label)0iso4217:TWD0
100001172494 (http://www.sec.gov/CIK)2015-12-31DPTW Option Plan [Member] * auo:EmployeeStockOptionPlan2011Member (label)ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (label)19.36iso4217:TWD2
110001172494 (http://www.sec.gov/CIK)2016-12-31DPTW Option Plan [Member] * auo:EmployeeStockOptionPlan2011Member (label)ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (label)19.04iso4217:TWD2
120001172494 (http://www.sec.gov/CIK)2017-12-31DPTW Option Plan [Member] * auo:EmployeeStockOptionPlan2011Member (label)ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (label)0iso4217:TWD0

Fact Table
Network
240 - Disclosure - Share-based Payments (Details 1)
(http://auo.com/role/SharebasedPaymentsDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)auo:ShareBasedArrangementsExercisablePeriodShareOptionsIssued (label)After Aug. 31, 2016
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)auo:WeightedAverageRemainingContractualLifeOfShareOptionsIssued (label)Sep.1, 2014 – Aug. 31, 2019
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:DateOfGrantOfSharebasedPaymentArrangement (label)Sep. 1, 2014
40001172494 (http://www.sec.gov/CIK)2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:ExercisePriceOfOutstandingShareOptions (label)10000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement (label)20000auo:Numberofunits-3

Fact Table
Network
241 - Disclosure - Share-based Payments (Details 2)
(http://auo.com/role/SharebasedPaymentsDetails2)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted (label)0.3888xbrli:pure4
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:DescriptionOfOptionLifeShareOptionsGranted (label)5xbrli:pure0
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted (label)0.011648xbrli:pure6
40001172494 (http://www.sec.gov/CIK)2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:WeightedAverageFairValueAtMeasurementDateShareOptionsGranted (label)0.2iso4217:TWD2

Fact Table
Network
242 - Disclosure - Share-based Payments (Details 3)
(http://auo.com/role/SharebasedPaymentsDetails3)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:NumberOfOutstandingShareOptions (label)32843000auo:Numberofunits0
20001172494 (http://www.sec.gov/CIK)2016-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:NumberOfOutstandingShareOptions (label)29209000auo:Numberofunits0
30001172494 (http://www.sec.gov/CIK)2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:NumberOfOutstandingShareOptions (label)16601000auo:Numberofunits0
40001172494 (http://www.sec.gov/CIK)2016-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement (label)20578000auo:Numberofunits0
50001172494 (http://www.sec.gov/CIK)2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement (label)12425000auo:Numberofunits0
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement (label)959000auo:Numberofunits0
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement (label)1162000auo:Numberofunits0
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement (label)2675000auo:Numberofunits0
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement (label)11446000auo:Numberofunits0
100001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement (label)10iso4217:TWD0
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement (label)10iso4217:TWD0
120001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement (label)0iso4217:TWD0
130001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement (label)0iso4217:TWD0
140001172494 (http://www.sec.gov/CIK)2015-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (label)10iso4217:TWD0
150001172494 (http://www.sec.gov/CIK)2016-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (label)10iso4217:TWD0
160001172494 (http://www.sec.gov/CIK)2017-12-31ACTW Option Plan [Member] * auo:EmployeeStockOptionPlan2014Member (label)ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (label)10iso4217:TWD0

Fact Table
Network
243 - Disclosure - Share-based Payments (Details Textual)
(http://auo.com/role/SharebasedPaymentsDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ACTW Option Plan [Member] * Plan Names [Domain]Expense from share-based payment transactions with employees2386000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ACTW Option Plan [Member] * Plan Names [Domain]Expense from share-based payment transactions with employees1534000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ACTW Option Plan [Member] * Plan Names [Domain]Expense from share-based payment transactions with employees474000iso4217:TWD-3

Fact Table
Network
244 - Disclosure - Revenue (Details)
(http://auo.com/role/RevenueDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Class of Stock [Domain]ifrs-full:OtherRevenue (label)8780205000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Class of Stock [Domain]ifrs-full:OtherRevenue (label)10845497000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]ifrs-full:OtherRevenue (label)11444131000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Class of Stock [Domain]ifrs-full:Revenue (label)360346494000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Class of Stock [Domain]ifrs-full:Revenue (label)329089036000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]ifrs-full:Revenue (label)341028267000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoods (label)351566289000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoods (label)318243539000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoods (label)329584136000iso4217:TWD-3

Fact Table
Network
245 - Disclosure - Remuneration to Employees and Directors (Details Textual)
(http://auo.com/role/RemunerationToEmployeesAndDirectorsDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DirectorsMaximumRemunerationPercentage (label)0.01xbrli:pure2
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:EmployeesMinimumRemunerationPercentage (label)0.05xbrli:pure2
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullDirectors' remuneration expense13316000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullDirectors' remuneration expense24226000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDirectors' remuneration expense132604000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullOther short-term employee benefits665815000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullOther short-term employee benefits1107486000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullOther short-term employee benefits4062114000iso4217:TWD-3

Fact Table
Network
246 - Disclosure - The Nature of Expenses (Details)
(http://auo.com/role/NatureOfExpensesDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Income Statement [Domain]ifrs-full:DepreciationExpense (label)46851487000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:CostOfSaleMember (label)ifrs-full:DepreciationExpense (label)42558430000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:OperatingExpensesMember (label)ifrs-full:DepreciationExpense (label)4293057000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Income Statement [Domain]ifrs-full:DepreciationExpense (label)38533775000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:CostOfSaleMember (label)ifrs-full:DepreciationExpense (label)34305760000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OperatingExpensesMember (label)ifrs-full:DepreciationExpense (label)4228015000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Income Statement [Domain]ifrs-full:DepreciationExpense (label)35801230000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CostOfSaleMember (label)ifrs-full:DepreciationExpense (label)31660279000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OperatingExpensesMember (label)ifrs-full:DepreciationExpense (label)4140951000iso4217:TWD-3

Fact Table
Network
247 - Disclosure - The Nature of Expenses (Details 1)
(http://auo.com/role/NatureOfExpensesDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Income Statement [Domain]ifrs-full:AmortisationExpense (label)894362000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:CostOfSaleMember (label)ifrs-full:AmortisationExpense (label)892566000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:OperatingExpensesMember (label)ifrs-full:AmortisationExpense (label)1796000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Income Statement [Domain]ifrs-full:AmortisationExpense (label)1159465000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:CostOfSaleMember (label)ifrs-full:AmortisationExpense (label)1159465000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OperatingExpensesMember (label)ifrs-full:AmortisationExpense (label)0iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Income Statement [Domain]ifrs-full:AmortisationExpense (label)628606000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CostOfSaleMember (label)ifrs-full:AmortisationExpense (label)628606000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OperatingExpensesMember (label)ifrs-full:AmortisationExpense (label)0iso4217:TWD-3

Fact Table
Network
248 - Disclosure - The Nature of Expenses (Details 2)
(http://auo.com/role/NatureOfExpensesDetails2)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Income Statement [Domain]auo:PostemploymentBenefitExpenseDefinedBenefitPlansAndDefinedContributionPlans (label)2351109000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Income Statement [Domain]auo:PostemploymentBenefitExpenseDefinedBenefitPlansAndDefinedContributionPlans (label)2098013000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Income Statement [Domain]auo:PostemploymentBenefitExpenseDefinedBenefitPlansAndDefinedContributionPlans (label)1917136000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Income Statement [Domain]Employee benefits expense41303258000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:CostOfSaleMember (label)Employee benefits expense32781145000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:OperatingExpensesMember (label)Employee benefits expense8522113000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Income Statement [Domain]Employee benefits expense40210924000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:CostOfSaleMember (label)Employee benefits expense30950614000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OperatingExpensesMember (label)Employee benefits expense9260310000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Income Statement [Domain]Employee benefits expense44900469000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CostOfSaleMember (label)Employee benefits expense34703579000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OperatingExpensesMember (label)Employee benefits expense10196890000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Income Statement [Domain]ifrs-full:OtherEmployeeExpense (label)2910576000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Income Statement [Domain]ifrs-full:OtherEmployeeExpense (label)3024372000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Income Statement [Domain]ifrs-full:OtherEmployeeExpense (label)3197324000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Income Statement [Domain]ifrs-full:SocialSecurityContributions (label)1879782000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Income Statement [Domain]ifrs-full:SocialSecurityContributions (label)1804900000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Income Statement [Domain]ifrs-full:SocialSecurityContributions (label)1967688000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Income Statement [Domain]ifrs-full:WagesAndSalaries (label)34161791000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Income Statement [Domain]ifrs-full:WagesAndSalaries (label)33283639000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Income Statement [Domain]ifrs-full:WagesAndSalaries (label)37818321000iso4217:TWD-3

Fact Table
Network
249 - Disclosure - Other Income (Details)
(http://auo.com/role/OtherIncomeDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:InterestIncomeOnDeposits (label)629057000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:InterestIncomeOnDeposits (label)491160000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:InterestIncomeOnDeposits (label)591995000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:InterestIncomeOnReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed (label)43581000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:InterestIncomeOnReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed (label)3382000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:InterestIncomeOnReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed (label)20215000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:MiscellaneousOtherOperatingIncome (label)602284000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:MiscellaneousOtherOperatingIncome (label)619414000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:MiscellaneousOtherOperatingIncome (label)636146000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherIncome (label)2197593000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherIncome (label)2380228000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherIncome (label)3829897000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:RentalIncome (label)472484000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:RentalIncome (label)527381000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:RentalIncome (label)531442000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullDividend income112661000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullDividend income107141000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullDividend income248514000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:RevenueFromGovernmentGrants (label)337526000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:RevenueFromGovernmentGrants (label)631750000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:RevenueFromGovernmentGrants (label)1801585000iso4217:TWD-3

Fact Table
Network
250 - Disclosure - Other Gains and Losses (Details)
(http://auo.com/role/OtherGainsAndLossesDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:GainsLossesOnDisposalsOfInvestments (label)-10618000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:GainsLossesOnDisposalsOfInvestments (label)-333858000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:GainsLossesOnDisposalsOfInvestments (label)42788000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)585196000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)24278000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment (label)330814000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss (label)537248000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss (label)770325000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss (label)-1364929000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)939117000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)-411437000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss (label)1646034000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ImpairmentLoss (label)7026226000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ImpairmentLoss (label)34733000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ImpairmentLoss (label)1046668000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:LossesOnLitigationSettlements (label)5003037000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:LossesOnLitigationSettlements (label)940248000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:LossesOnLitigationSettlements (label)584599000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherGainsLosses (label)-9978320000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherGainsLosses (label)-925673000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherGainsLosses (label)-976560000iso4217:TWD-3

Fact Table
Network
251 - Disclosure - Finance Costs (Details)
(http://auo.com/role/FinanceCostsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:FinanceCosts (label)2591023000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:FinanceCosts (label)2707887000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:FinanceCosts (label)2867861000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:InterestExpenseOnBorrowings (label)2398159000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:InterestExpenseOnBorrowings (label)2072458000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:InterestExpenseOnBorrowings (label)2519839000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:InterestExpenseOnOtherFinancialLiabilities (label)192864000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:InterestExpenseOnOtherFinancialLiabilities (label)635429000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:InterestExpenseOnOtherFinancialLiabilities (label)348022000iso4217:TWD-3

Fact Table
Network
252 - Disclosure - Income Taxes (Details)
(http://auo.com/role/IncomeTaxesDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod (label)-208609000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod (label)879337000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod (label)246264000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:CurrentTaxExpenseIncome (label)1561194000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:CurrentTaxExpenseIncome (label)1601384000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:CurrentTaxExpenseIncome (label)3719483000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullCurrent tax expense (income) and adjustments for current tax of prior periods1352585000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullCurrent tax expense (income) and adjustments for current tax of prior periods2480721000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullCurrent tax expense (income) and adjustments for current tax of prior periods3965747000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-967744000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-48176000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-5090904000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences (label)163513000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences (label)98137000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences (label)1271415000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:IncomeTaxExpenseContinuingOperations (label)384841000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:IncomeTaxExpenseContinuingOperations (label)2432545000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:IncomeTaxExpenseContinuingOperations (label)-1125157000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceDeferredTaxExpense (label)-804231000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceDeferredTaxExpense (label)49961000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceDeferredTaxExpense (label)-3819489000iso4217:TWD-3

Fact Table
Network
253 - Disclosure - Income Taxes (Details 1)
(http://auo.com/role/IncomeTaxesDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss (label)-16050000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss (label)-230202000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss (label)-316372000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss (label)-681000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss (label)0iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss (label)-155930000iso4217:TWD-3

Fact Table
Network
254 - Disclosure - Income Taxes (Details 2)
(http://auo.com/role/IncomeTaxesDetails2)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:TaxEffectOfAdjustmentsToPriorYear (label)-238555000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:TaxEffectOfAdjustmentsToPriorYear (label)895861000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:TaxEffectOfAdjustmentsToPriorYear (label)-528662000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:TaxEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss (label)1835311000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:TaxEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss (label)-1091327000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:TaxEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss (label)-10645339000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:TaxEffectOfDifferentSubsidiariesIncomeTaxRate (label)-1601591000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:TaxEffectOfDifferentSubsidiariesIncomeTaxRate (label)285661000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:TaxEffectOfDifferentSubsidiariesIncomeTaxRate (label)348192000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:TaxEffectOfLossGainFromDomesticLongTermInvestment (label)411293000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:TaxEffectOfLossGainFromDomesticLongTermInvestment (label)-168484000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:TaxEffectOfLossGainFromDomesticLongTermInvestment (label)457275000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:TaxEffectOfShareOfProfitOfEquityAccountedSubsidiaries (label)2191605000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:TaxEffectOfShareOfProfitOfEquityAccountedSubsidiaries (label)432163000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:TaxEffectOfShareOfProfitOfEquityAccountedSubsidiaries (label)708417000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:TaxEffectOfUndistributedEarningsNet (label)518356000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:TaxEffectOfUndistributedEarningsNet (label)765419000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:TaxEffectOfUndistributedEarningsNet (label)2987763000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:TaxRateEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss (label)0.2415xbrli:pure4
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:TaxRateEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss (label)-0.0976xbrli:pure4
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:TaxRateEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss (label)-0.2704xbrli:pure4
220001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:TaxRateEffectOfDifferentSubsidiariesIncomeTaxRate (label)-0.2108xbrli:pure4
230001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:TaxRateEffectOfDifferentSubsidiariesIncomeTaxRate (label)0.0255xbrli:pure4
240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:TaxRateEffectOfDifferentSubsidiariesIncomeTaxRate (label)0.0089xbrli:pure4
250001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:TaxRateEffectOfLossGainFromDomesticLongTermInvestment (label)0.0541xbrli:pure4
260001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:TaxRateEffectOfLossGainFromDomesticLongTermInvestment (label)-0.0151xbrli:pure4
270001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:TaxRateEffectOfLossGainFromDomesticLongTermInvestment (label)0.0116xbrli:pure4
280001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:TaxRateEffectOfShareOfProfitEquityAccountedSubsidiaries (label)0.2884xbrli:pure4
290001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:TaxRateEffectOfShareOfProfitEquityAccountedSubsidiaries (label)0.0386xbrli:pure4
300001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:TaxRateEffectOfShareOfProfitEquityAccountedSubsidiaries (label)0.018xbrli:pure4
310001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:TaxRateEffectOfUndistrbutedEarningsNet (label)0.0682xbrli:pure4
320001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:TaxRateEffectOfUndistrbutedEarningsNet (label)0.0684xbrli:pure4
330001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:TaxRateEffectOfUndistrbutedEarningsNet (label)0.0759xbrli:pure4
340001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AccountingProfit (label)7598850000iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AccountingProfit (label)11185902000iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AccountingProfit (label)39363606000iso4217:TWD-3
370001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ApplicableTaxRate (label)0.17xbrli:pure2
380001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ApplicableTaxRate (label)0.17xbrli:pure2
390001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ApplicableTaxRate (label)0.17xbrli:pure2
400001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AverageEffectiveTaxRate (label)0.0506xbrli:pure4
410001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AverageEffectiveTaxRate (label)0.2174xbrli:pure4
420001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AverageEffectiveTaxRate (label)-0.0285xbrli:pure4
430001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:IncomeTaxExpenseContinuingOperations (label)384841000iso4217:TWD-3
440001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:IncomeTaxExpenseContinuingOperations (label)2432545000iso4217:TWD-3
450001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:IncomeTaxExpenseContinuingOperations (label)-1125157000iso4217:TWD-3
460001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome (label)-4305000iso4217:TWD-3
470001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome (label)269000iso4217:TWD-3
480001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome (label)30953000iso4217:TWD-3
490001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome (label)0.0006xbrli:pure4
500001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome (label)0xbrli:pure0
510001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome (label)-0.0008xbrli:pure4
520001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:TaxEffectFromChangeInTaxRate (label)305312000iso4217:TWD-3
530001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:TaxEffectFromChangeInTaxRate (label)0iso4217:TWD-3
540001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:TaxEffectFromChangeInTaxRate (label)0iso4217:TWD-3
550001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss (label)58821000iso4217:TWD-3
560001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss (label)275706000iso4217:TWD-3
570001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss (label)241265000iso4217:TWD-3
580001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:TaxExpenseIncomeAtApplicableTaxRate (label)1291804000iso4217:TWD-3
590001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:TaxExpenseIncomeAtApplicableTaxRate (label)1901603000iso4217:TWD-3
600001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:TaxExpenseIncomeAtApplicableTaxRate (label)6691813000iso4217:TWD-3
610001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:TaxRateEffectFromChangeInTaxRate (label)0.0402xbrli:pure4
620001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:TaxRateEffectFromChangeInTaxRate (label)0xbrli:pure0
630001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:TaxRateEffectFromChangeInTaxRate (label)0xbrli:pure0
640001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods (label)-0.0314xbrli:pure4
650001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods (label)0.0801xbrli:pure4
660001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods (label)-0.0134xbrli:pure4
670001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss (label)0.0078xbrli:pure4
680001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss (label)0.0247xbrli:pure4
690001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss (label)0.0061xbrli:pure4

Fact Table
Network
255 - Disclosure - Income Taxes (Details 3)
(http://auo.com/role/IncomeTaxesDetails3)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod (label)-1091023000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod (label)0iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod (label)-1091023000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod (label)-890153000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod (label)0iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod (label)-890153000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences (label)-81847000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences (label)0iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences (label)-81847000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences (label)234525000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences (label)279517000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences (label)-44992000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown (label)69938000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown (label)69938000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown (label)0iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown (label)644887000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown (label)644887000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown (label)0iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2016-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToInvestmentsCredits (label)840112000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToInvestmentsCredits (label)840112000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToInvestmentsCredits (label)0iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToInvestmentsCredits (label)656480000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToInvestmentsCredits (label)656480000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToInvestmentsCredits (label)0iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2016-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToOthers (label)-9538000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToOthers (label)644361000iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToOthers (label)-653899000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2017-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToOthers (label)464367000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToOthers (label)1106104000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToOthers (label)-641737000iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2016-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans (label)0iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans (label)0iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans (label)0iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2017-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans (label)155930000iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans (label)155930000iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans (label)0iso4217:TWD-3
370001172494 (http://www.sec.gov/CIK)2016-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards (label)0iso4217:TWD-3
380001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards (label)0iso4217:TWD-3
390001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards (label)0iso4217:TWD-3
400001172494 (http://www.sec.gov/CIK)2017-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards (label)3942012000iso4217:TWD-3
410001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards (label)3942012000iso4217:TWD-3
420001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards (label)0iso4217:TWD-3
430001172494 (http://www.sec.gov/CIK)2016-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses (label)178948000iso4217:TWD-3
440001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses (label)182443000iso4217:TWD-3
450001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses (label)-3495000iso4217:TWD-3
460001172494 (http://www.sec.gov/CIK)2017-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses (label)222739000iso4217:TWD-3
470001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax assets [Member]auo:DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses (label)284084000iso4217:TWD-3
480001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax liabilities [Member]auo:DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses (label)-61345000iso4217:TWD-3
490001172494 (http://www.sec.gov/CIK)2016-12-31Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:DeferredTaxLiabilityAsset (label)-93410000iso4217:TWD-3
500001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax assets [Member]ifrs-full:DeferredTaxLiabilityAsset (label)1736854000iso4217:TWD-3
510001172494 (http://www.sec.gov/CIK)2016-12-31Deferred tax liabilities [Member]ifrs-full:DeferredTaxLiabilityAsset (label)-1830264000iso4217:TWD-3
520001172494 (http://www.sec.gov/CIK)2017-12-31Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:DeferredTaxLiabilityAsset (label)5430787000iso4217:TWD-3
530001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax assets [Member]ifrs-full:DeferredTaxLiabilityAsset (label)7069014000iso4217:TWD-3
540001172494 (http://www.sec.gov/CIK)2017-12-31Deferred tax liabilities [Member]ifrs-full:DeferredTaxLiabilityAsset (label)-1638227000iso4217:TWD-3

Fact Table
Network
256 - Disclosure - Income Taxes (Details 4)
(http://auo.com/role/IncomeTaxesDetails4)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)91385000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:ForeignInvestmentLossesGainsUnderEquityMethodMember (label)auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)0iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:ForeignOperationsForeignCurrencyTranslationDifferencesMember (label)auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)0iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Inventories write-down [Member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)2568000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Investment tax credits [Member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)19188000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OthersMember (label)auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)54785000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Remeasurement of defined benefit plans [Member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)2798000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Tax losses carryforwards [Member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)0iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Unrealized gains on available for sale financial assets [Member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)-903000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Unrealized loss and expenses [Member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)12949000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Temporary difference, unused tax losses and unused tax credits [member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)39009000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ForeignInvestmentLossesGainsUnderEquityMethodMember (label)auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)0iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ForeignOperationsForeignCurrencyTranslationDifferencesMember (label)auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)0iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Inventories write-down [Member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)250000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Investment tax credits [Member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)61936000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OthersMember (label)auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)-25942000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Remeasurement of defined benefit plans [Member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)0iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Tax losses carryforwards [Member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)-827000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Unrealized gains on available for sale financial assets [Member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)0iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Unrealized loss and expenses [Member]auo:DeferredTaxExpenseIncomeFromEffectOfExchangeRateAndOthers (label)3592000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-967744000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-48176000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:ForeignInvestmentLossesGainsUnderEquityMethodMember (label)ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-83710000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:ForeignOperationsForeignCurrencyTranslationDifferencesMember (label)ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)0iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Inventories write-down [Member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-49658000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Investment tax credits [Member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)0iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OthersMember (label)ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)39487000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Remeasurement of defined benefit plans [Member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)0iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Tax losses carryforwards [Member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)49961000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Unrealized gains on available for sale financial assets [Member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)0iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Unrealized loss and expenses [Member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-4256000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-5090904000iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ForeignInvestmentLossesGainsUnderEquityMethodMember (label)ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-200870000iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ForeignOperationsForeignCurrencyTranslationDifferencesMember (label)ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)0iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Inventories write-down [Member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-575199000iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Investment tax credits [Member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)121696000iso4217:TWD-3
370001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OthersMember (label)ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-447963000iso4217:TWD-3
380001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Remeasurement of defined benefit plans [Member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)0iso4217:TWD-3
390001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Tax losses carryforwards [Member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-3941185000iso4217:TWD-3
400001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Unrealized gains on available for sale financial assets [Member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)0iso4217:TWD-3
410001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Unrealized loss and expenses [Member]ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)-47383000iso4217:TWD-3
420001172494 (http://www.sec.gov/CIK)2015-12-31Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:DeferredTaxLiabilityAsset (label)-280403000iso4217:TWD-3
430001172494 (http://www.sec.gov/CIK)2015-12-31auo:ForeignInvestmentLossesGainsUnderEquityMethodMember (label)ifrs-full:DeferredTaxLiabilityAsset (label)-1174733000iso4217:TWD-3
440001172494 (http://www.sec.gov/CIK)2015-12-31auo:ForeignOperationsForeignCurrencyTranslationDifferencesMember (label)ifrs-full:DeferredTaxLiabilityAsset (label)-312049000iso4217:TWD-3
450001172494 (http://www.sec.gov/CIK)2015-12-31Inventories write-down [Member]ifrs-full:DeferredTaxLiabilityAsset (label)22848000iso4217:TWD-3
460001172494 (http://www.sec.gov/CIK)2015-12-31Investment tax credits [Member]ifrs-full:DeferredTaxLiabilityAsset (label)859300000iso4217:TWD-3
470001172494 (http://www.sec.gov/CIK)2015-12-31auo:OthersMember (label)ifrs-full:DeferredTaxLiabilityAsset (label)84734000iso4217:TWD-3
480001172494 (http://www.sec.gov/CIK)2015-12-31Remeasurement of defined benefit plans [Member]ifrs-full:DeferredTaxLiabilityAsset (label)2798000iso4217:TWD-3
490001172494 (http://www.sec.gov/CIK)2015-12-31Tax losses carryforwards [Member]ifrs-full:DeferredTaxLiabilityAsset (label)49961000iso4217:TWD-3
500001172494 (http://www.sec.gov/CIK)2015-12-31Unrealized gains on available for sale financial assets [Member]ifrs-full:DeferredTaxLiabilityAsset (label)-903000iso4217:TWD-3
510001172494 (http://www.sec.gov/CIK)2015-12-31Unrealized loss and expenses [Member]ifrs-full:DeferredTaxLiabilityAsset (label)187641000iso4217:TWD-3
520001172494 (http://www.sec.gov/CIK)2016-12-31Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:DeferredTaxLiabilityAsset (label)-93410000iso4217:TWD-3
530001172494 (http://www.sec.gov/CIK)2016-12-31auo:ForeignInvestmentLossesGainsUnderEquityMethodMember (label)ifrs-full:DeferredTaxLiabilityAsset (label)-1091023000iso4217:TWD-3
540001172494 (http://www.sec.gov/CIK)2016-12-31auo:ForeignOperationsForeignCurrencyTranslationDifferencesMember (label)ifrs-full:DeferredTaxLiabilityAsset (label)-81847000iso4217:TWD-3
550001172494 (http://www.sec.gov/CIK)2016-12-31Inventories write-down [Member]ifrs-full:DeferredTaxLiabilityAsset (label)69938000iso4217:TWD-3
560001172494 (http://www.sec.gov/CIK)2016-12-31Investment tax credits [Member]ifrs-full:DeferredTaxLiabilityAsset (label)840112000iso4217:TWD-3
570001172494 (http://www.sec.gov/CIK)2016-12-31auo:OthersMember (label)ifrs-full:DeferredTaxLiabilityAsset (label)-9538000iso4217:TWD-3
580001172494 (http://www.sec.gov/CIK)2016-12-31Remeasurement of defined benefit plans [Member]ifrs-full:DeferredTaxLiabilityAsset (label)0iso4217:TWD-3
590001172494 (http://www.sec.gov/CIK)2016-12-31Tax losses carryforwards [Member]ifrs-full:DeferredTaxLiabilityAsset (label)0iso4217:TWD-3
600001172494 (http://www.sec.gov/CIK)2016-12-31Unrealized gains on available for sale financial assets [Member]ifrs-full:DeferredTaxLiabilityAsset (label)0iso4217:TWD-3
610001172494 (http://www.sec.gov/CIK)2016-12-31Unrealized loss and expenses [Member]ifrs-full:DeferredTaxLiabilityAsset (label)178948000iso4217:TWD-3
620001172494 (http://www.sec.gov/CIK)2017-12-31Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:DeferredTaxLiabilityAsset (label)5430787000iso4217:TWD-3
630001172494 (http://www.sec.gov/CIK)2017-12-31auo:ForeignInvestmentLossesGainsUnderEquityMethodMember (label)ifrs-full:DeferredTaxLiabilityAsset (label)-890153000iso4217:TWD-3
640001172494 (http://www.sec.gov/CIK)2017-12-31auo:ForeignOperationsForeignCurrencyTranslationDifferencesMember (label)ifrs-full:DeferredTaxLiabilityAsset (label)234525000iso4217:TWD-3
650001172494 (http://www.sec.gov/CIK)2017-12-31Inventories write-down [Member]ifrs-full:DeferredTaxLiabilityAsset (label)644887000iso4217:TWD-3
660001172494 (http://www.sec.gov/CIK)2017-12-31Investment tax credits [Member]ifrs-full:DeferredTaxLiabilityAsset (label)656480000iso4217:TWD-3
670001172494 (http://www.sec.gov/CIK)2017-12-31auo:OthersMember (label)ifrs-full:DeferredTaxLiabilityAsset (label)464367000iso4217:TWD-3
680001172494 (http://www.sec.gov/CIK)2017-12-31Remeasurement of defined benefit plans [Member]ifrs-full:DeferredTaxLiabilityAsset (label)155930000iso4217:TWD-3
690001172494 (http://www.sec.gov/CIK)2017-12-31Tax losses carryforwards [Member]ifrs-full:DeferredTaxLiabilityAsset (label)3942012000iso4217:TWD-3
700001172494 (http://www.sec.gov/CIK)2017-12-31Unrealized gains on available for sale financial assets [Member]ifrs-full:DeferredTaxLiabilityAsset (label)0iso4217:TWD-3
710001172494 (http://www.sec.gov/CIK)2017-12-31Unrealized loss and expenses [Member]ifrs-full:DeferredTaxLiabilityAsset (label)222739000iso4217:TWD-3
720001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)230202000iso4217:TWD-3
730001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:ForeignInvestmentLossesGainsUnderEquityMethodMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
740001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:ForeignOperationsForeignCurrencyTranslationDifferencesMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)230202000iso4217:TWD-3
750001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Inventories write-down [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
760001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Investment tax credits [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
770001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OthersMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
780001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Remeasurement of defined benefit plans [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
790001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Tax losses carryforwards [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
800001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Unrealized gains on available for sale financial assets [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
810001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Unrealized loss and expenses [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
820001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)472302000iso4217:TWD-3
830001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ForeignInvestmentLossesGainsUnderEquityMethodMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
840001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:ForeignOperationsForeignCurrencyTranslationDifferencesMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)316372000iso4217:TWD-3
850001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Inventories write-down [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
860001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Investment tax credits [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
870001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OthersMember (label)ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
880001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Remeasurement of defined benefit plans [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)155930000iso4217:TWD-3
890001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Tax losses carryforwards [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
900001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Unrealized gains on available for sale financial assets [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3
910001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Unrealized loss and expenses [Member]ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)0iso4217:TWD-3

Fact Table
Network
257 - Disclosure - Income Taxes (Details 5)
(http://auo.com/role/IncomeTaxesDetails5)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31nullauo:DifferenceInDepreciationExpenseForTaxAndFinancialPurposesForWhichNoDeferredTaxAssetRecognised (label)2471376000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-12-31nullauo:DifferenceInDepreciationExpenseForTaxAndFinancialPurposesForWhichNoDeferredTaxAssetRecognised (label)2104639000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31nullauo:GoodwillForWhichNoDeferredTaxAssetRecognised (label)47268000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-12-31nullauo:GoodwillForWhichNoDeferredTaxAssetRecognised (label)706648000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31nullauo:InventoriesWriteDownForWhichNoDeferredTaxAssetRecognised (label)536102000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31nullauo:InventoriesWriteDownForWhichNoDeferredTaxAssetRecognised (label)10328000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-12-31nullauo:TotalUnrecognizedDeferredTaxAssets (label)39992288000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31nullauo:TotalUnrecognizedDeferredTaxAssets (label)29346143000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised (label)3545013000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised (label)655974000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (label)33392529000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (label)25868554000iso4217:TWD-3

Fact Table
Network
258 - Disclosure - Income Taxes (Details 6)
(http://auo.com/role/IncomeTaxesDetails6)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:EstimatedUnusedTaxLossesCarryforwards2017Member (label)ifrs-full:DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits (label)2022 ~ 2027
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:UnusedTaxLossesCarryforwards2009Member (label)ifrs-full:DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits (label)2018 ~ 2019
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:UnusedTaxLossesCarryforwards2010Member (label)ifrs-full:DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits (label)2019
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:UnusedTaxLossesCarryforwards2011Member (label)ifrs-full:DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits (label)2020 ~ 2021
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:UnusedTaxLossesCarryforwards2012Member (label)ifrs-full:DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits (label)2021 ~ 2022
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:UnusedTaxLossesCarryforwards2013Member (label)ifrs-full:DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits (label)2018 ~ 2023
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:UnusedTaxLossesCarryforwards2014Member (label)ifrs-full:DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits (label)2019 ~ 2024
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:UnusedTaxLossesCarryforwards2015Member (label)ifrs-full:DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits (label)2020 ~ 2025
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:UnusedTaxLossesCarryforwards2016Member (label)ifrs-full:DescriptionOfExpiryDateOfTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCredits (label)2021 ~ 2026
100001172494 (http://www.sec.gov/CIK)2016-12-31Unused tax losses assessment year [Domain]ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (label)33392529000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-12-31Unused tax losses assessment year [Domain]ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (label)25868554000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-12-31auo:EstimatedUnusedTaxLossesCarryforwards2017Member (label)ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (label)2190279000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-12-31auo:UnusedTaxLossesCarryforwards2009Member (label)ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (label)427346000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-12-31auo:UnusedTaxLossesCarryforwards2010Member (label)ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (label)620885000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-12-31auo:UnusedTaxLossesCarryforwards2011Member (label)ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (label)1313095000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-12-31auo:UnusedTaxLossesCarryforwards2012Member (label)ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (label)9583402000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2017-12-31auo:UnusedTaxLossesCarryforwards2013Member (label)ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (label)1723631000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-12-31auo:UnusedTaxLossesCarryforwards2014Member (label)ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (label)2058670000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2017-12-31auo:UnusedTaxLossesCarryforwards2015Member (label)ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (label)3851129000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2017-12-31auo:UnusedTaxLossesCarryforwards2016Member (label)ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised (label)4100117000iso4217:TWD-3

Fact Table
Network
259 - Disclosure - Income Taxes (Details Textual)
(http://auo.com/role/IncomeTaxesDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Entity's total for subsidiaries [member] * Temporary difference, unused tax losses and unused tax credits [member]auo:BalanceOfImputationCreditAccountOfIntegratedIncomeTaxSystem (label)3878285000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-12-31Entity's total for subsidiaries [member] * Temporary difference, unused tax losses and unused tax credits [member]auo:BalanceOfImputationCreditAccountOfIntegratedIncomeTaxSystem (label)3072019000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for subsidiaries [member] * Temporary difference, unused tax losses and unused tax credits [member]auo:EstimatedAndActualCreditableRatiosForDistributionOfEarnings (label)0.1927xbrli:pure4
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for subsidiaries [member] * Temporary difference, unused tax losses and unused tax credits [member]auo:EstimatedAndActualCreditableRatiosForDistributionOfEarnings (label)0.0644xbrli:pure4
50001172494 (http://www.sec.gov/CIK)2016-12-31Entity's total for subsidiaries [member] * Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:DeferredTaxAssets (label)1736854000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31Entity's total for subsidiaries [member] * Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:DeferredTaxAssets (label)7069014000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31Entity's total for subsidiaries [member] * Unused tax losses [member]ifrs-full:DeferredTaxAssets (label)3878233000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for subsidiaries [member] * Temporary difference, unused tax losses and unused tax credits [member]Tax benefit arising from previously unrecognised tax loss, tax credit or temporary difference of prior period used to reduce current tax expense7494191000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-12-31Entity's total for subsidiaries [member] * Temporary difference, unused tax losses and unused tax credits [member]Temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements for which deferred tax liabilities have not been recognised448513000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-12-31auo:AfpdPteLtdMember (label) * Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised (label)677257000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-12-31auo:AuoCrystalMalaysiaSdnBhdMember (label) * Temporary difference, unused tax losses and unused tax credits [member]ifrs-full:UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised (label)29391000iso4217:TWD-3

Fact Table
Network
260 - Disclosure - Earnings per Share (Details)
(http://auo.com/role/EarningsPerShareDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:BasicEarningsLossPerShare (label)0.75iso4217:TWD/xbrli:shares2
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:BasicEarningsLossPerShare (label)1.04iso4217:TWD/xbrli:shares2
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:BasicEarningsLossPerShare (label)4.43iso4217:TWD/xbrli:shares2
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProfitLossAttributableToOwnersOfParent (label)7242170000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProfitLossAttributableToOwnersOfParent (label)9965129000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProfitLossAttributableToOwnersOfParent (label)42609500000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:WeightedAverageShares (label)9624245000xbrli:shares-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:WeightedAverageShares (label)9624245000xbrli:shares-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:WeightedAverageShares (label)9624245000xbrli:shares-3

Fact Table
Network
261 - Disclosure - Earnings per Share (Details 1)
(http://auo.com/role/EarningsPerShareDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullauo:DilutiveEffectOfConvertibleBonds (label)-340686000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:DilutiveEffectOfConvertibleBonds (label)0iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DilutiveEffectOfConvertibleBonds (label)0iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:AdjustedWeightedAverageShares (label)9891870000xbrli:shares-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:AdjustedWeightedAverageShares (label)9731792000xbrli:shares-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:AdjustedWeightedAverageShares (label)9972148000xbrli:shares-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:DilutedEarningsLossPerShare (label)0.7iso4217:TWD/xbrli:shares2
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:DilutedEarningsLossPerShare (label)1.02iso4217:TWD/xbrli:shares2
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DilutedEarningsLossPerShare (label)4.27iso4217:TWD/xbrli:shares2
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares (label)199894000xbrli:shares-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares (label)0xbrli:shares-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares (label)0xbrli:shares-3
130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares (label)67731000xbrli:shares-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares (label)107547000xbrli:shares-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares (label)347903000xbrli:shares-3
160001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects (label)6901484000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects (label)9965129000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects (label)42609500000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:ProfitLossAttributableToOwnersOfParent (label)7242170000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:ProfitLossAttributableToOwnersOfParent (label)9965129000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:ProfitLossAttributableToOwnersOfParent (label)42609500000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:WeightedAverageShares (label)9624245000xbrli:shares-3
230001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:WeightedAverageShares (label)9624245000xbrli:shares-3
240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:WeightedAverageShares (label)9624245000xbrli:shares-3

Fact Table
Network
262 - Disclosure - Financial Instruments (Details)
(http://auo.com/role/FinancialInstrumentsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember (label) * Financial liabilities, category [member] * auo:ForeignCurrencyForwardContractsAssetsMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssets (label)65669000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * Financial liabilities, category [member] * ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssets (label)3030278000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:LongTermReceivablesMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssets (label)1974271000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:RefundableDepositsMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssets (label)133221000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember (label) * Financial liabilities, category [member] * auo:ForeignCurrencyForwardContractsAssetsMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssets (label)70366000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * Financial liabilities, category [member] * ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssets (label)4348134000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:LongTermReceivablesMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssets (label)1790400000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:RefundableDepositsMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssets (label)515148000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember (label) * Financial liabilities, category [member] * auo:ForeignCurrencyForwardContractsAssetsMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssetsAtFairValue (label)65669000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * Financial liabilities, category [member] * ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssetsAtFairValue (label)3030278000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:LongTermReceivablesMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssetsAtFairValue (label)1974271000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:RefundableDepositsMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssetsAtFairValue (label)133221000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember (label) * Financial liabilities, category [member] * auo:ForeignCurrencyForwardContractsAssetsMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssetsAtFairValue (label)70366000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * Financial liabilities, category [member] * ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssetsAtFairValue (label)4348134000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:LongTermReceivablesMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssetsAtFairValue (label)1790400000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:RefundableDepositsMember (label) * Financial liabilities, class [member] * Financial liabilities, type [member]ifrs-full:FinancialAssetsAtFairValue (label)515148000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * Derivatives financial liabilities for hedging [Member] * Financial assets, class [member] * auo:InterestRateSwapContractsLiabilityMember (label) * Financial liabilities, type [member]ifrs-full:FinancialLiabilities (label)3540000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember (label) * Financial assets, class [member] * auo:ForeignCurrencyForwardsContractsLiabilitiesMember (label) * Financial liabilities, type [member]ifrs-full:FinancialLiabilities (label)896998000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * Financial liabilities, category [member] * Financial assets, class [member] * auo:GuaranteeDepositsLiabilityMember (label) * auo:LongtermBorrowingsIncludingCurrentInstallmentsMember (label)ifrs-full:FinancialLiabilities (label)838263000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * Financial liabilities, category [member] * Financial assets, class [member] * auo:LongTermsBorrowingsMember (label) * auo:LongtermBorrowingsIncludingCurrentInstallmentsMember (label)ifrs-full:FinancialLiabilities (label)124262620000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * Derivatives financial liabilities for hedging [Member] * Financial assets, class [member] * auo:InterestRateSwapContractsLiabilityMember (label) * Financial liabilities, type [member]ifrs-full:FinancialLiabilities (label)0iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember (label) * Financial assets, class [member] * auo:ForeignCurrencyForwardsContractsLiabilitiesMember (label) * Financial liabilities, type [member]ifrs-full:FinancialLiabilities (label)106597000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * Financial liabilities, category [member] * Financial assets, class [member] * auo:GuaranteeDepositsLiabilityMember (label) * auo:LongtermBorrowingsIncludingCurrentInstallmentsMember (label)ifrs-full:FinancialLiabilities (label)838482000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * Financial liabilities, category [member] * Financial assets, class [member] * auo:LongTermsBorrowingsMember (label) * auo:LongtermBorrowingsIncludingCurrentInstallmentsMember (label)ifrs-full:FinancialLiabilities (label)110608010000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * Derivatives financial liabilities for hedging [Member] * Financial assets, class [member] * auo:InterestRateSwapContractsLiabilityMember (label) * Financial liabilities, type [member]ifrs-full:FinancialLiabilitiesAtFairValue (label)3540000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember (label) * Financial assets, class [member] * auo:ForeignCurrencyForwardsContractsLiabilitiesMember (label) * Financial liabilities, type [member]ifrs-full:FinancialLiabilitiesAtFairValue (label)896998000iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * Financial liabilities, category [member] * Financial assets, class [member] * auo:GuaranteeDepositsLiabilityMember (label) * auo:LongtermBorrowingsIncludingCurrentInstallmentsMember (label)ifrs-full:FinancialLiabilitiesAtFairValue (label)838263000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * Financial liabilities, category [member] * Financial assets, class [member] * auo:LongTermsBorrowingsMember (label) * auo:LongtermBorrowingsIncludingCurrentInstallmentsMember (label)ifrs-full:FinancialLiabilitiesAtFairValue (label)124262620000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * Derivatives financial liabilities for hedging [Member] * Financial assets, class [member] * auo:InterestRateSwapContractsLiabilityMember (label) * Financial liabilities, type [member]ifrs-full:FinancialLiabilitiesAtFairValue (label)0iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember (label) * Financial assets, class [member] * auo:ForeignCurrencyForwardsContractsLiabilitiesMember (label) * Financial liabilities, type [member]ifrs-full:FinancialLiabilitiesAtFairValue (label)106597000iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * Financial liabilities, category [member] * Financial assets, class [member] * auo:GuaranteeDepositsLiabilityMember (label) * auo:LongtermBorrowingsIncludingCurrentInstallmentsMember (label)ifrs-full:FinancialLiabilitiesAtFairValue (label)838482000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * Financial liabilities, category [member] * Financial assets, class [member] * auo:LongTermsBorrowingsMember (label) * auo:LongtermBorrowingsIncludingCurrentInstallmentsMember (label)ifrs-full:FinancialLiabilitiesAtFairValue (label)110608010000iso4217:TWD-3

Fact Table
Network
263 - Disclosure - Financial Instruments (Details 1)
(http://auo.com/role/FinancialInstrumentsDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember (label) * Financial liabilities, category [member] * auo:ForeignCurrencyForwardContractsAssetsMember (label) * Financial liabilities, class [member] * All levels of fair value hierarchy [member]ifrs-full:FinancialAssetsAtFairValue (label)65669000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember (label) * Financial liabilities, category [member] * auo:ForeignCurrencyForwardContractsAssetsMember (label) * Financial liabilities, class [member] * ifrs-full:Level1OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)0iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember (label) * Financial liabilities, category [member] * auo:ForeignCurrencyForwardContractsAssetsMember (label) * Financial liabilities, class [member] * ifrs-full:Level2OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)65669000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember (label) * Financial liabilities, category [member] * auo:ForeignCurrencyForwardContractsAssetsMember (label) * Financial liabilities, class [member] * ifrs-full:Level3OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)0iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label) * Financial liabilities, category [member] * Financial assets, class [member] * Financial liabilities, class [member] * All levels of fair value hierarchy [member]ifrs-full:FinancialAssetsAtFairValue (label)3030278000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label) * Financial liabilities, category [member] * Financial assets, class [member] * Financial liabilities, class [member] * ifrs-full:Level1OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)2836696000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label) * Financial liabilities, category [member] * Financial assets, class [member] * Financial liabilities, class [member] * ifrs-full:Level2OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)0iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label) * Financial liabilities, category [member] * Financial assets, class [member] * Financial liabilities, class [member] * ifrs-full:Level3OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)193582000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:LongTermReceivablesMember (label) * Financial liabilities, class [member] * ifrs-full:Level1OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)0iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:LongTermReceivablesMember (label) * Financial liabilities, class [member] * ifrs-full:Level2OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)1974271000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:LongTermReceivablesMember (label) * Financial liabilities, class [member] * ifrs-full:Level3OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)0iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:LongTermReceivablesMember (label) * Financial liabilities, class [member] * All levels of fair value hierarchy [member]ifrs-full:FinancialAssetsAtFairValue (label)1974271000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember (label) * Financial liabilities, category [member] * auo:ForeignCurrencyForwardContractsAssetsMember (label) * Financial liabilities, class [member] * All levels of fair value hierarchy [member]ifrs-full:FinancialAssetsAtFairValue (label)70366000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember (label) * Financial liabilities, category [member] * auo:ForeignCurrencyForwardContractsAssetsMember (label) * Financial liabilities, class [member] * ifrs-full:Level1OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)0iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember (label) * Financial liabilities, category [member] * auo:ForeignCurrencyForwardContractsAssetsMember (label) * Financial liabilities, class [member] * ifrs-full:Level2OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)70366000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember (label) * Financial liabilities, category [member] * auo:ForeignCurrencyForwardContractsAssetsMember (label) * Financial liabilities, class [member] * ifrs-full:Level3OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)0iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label) * Financial liabilities, category [member] * Financial assets, class [member] * Financial liabilities, class [member] * All levels of fair value hierarchy [member]ifrs-full:FinancialAssetsAtFairValue (label)4348134000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label) * Financial liabilities, category [member] * Financial assets, class [member] * Financial liabilities, class [member] * ifrs-full:Level1OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)4170319000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label) * Financial liabilities, category [member] * Financial assets, class [member] * Financial liabilities, class [member] * ifrs-full:Level2OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)0iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label) * Financial liabilities, category [member] * Financial assets, class [member] * Financial liabilities, class [member] * ifrs-full:Level3OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)177815000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:LongTermReceivablesMember (label) * Financial liabilities, class [member] * ifrs-full:Level1OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)0iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:LongTermReceivablesMember (label) * Financial liabilities, class [member] * ifrs-full:Level2OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)1790400000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:LongTermReceivablesMember (label) * Financial liabilities, class [member] * ifrs-full:Level3OfFairValueHierarchyMember (label)ifrs-full:FinancialAssetsAtFairValue (label)0iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:LoansAndReceivablesCategoryMember (label) * Financial liabilities, category [member] * auo:LongTermReceivablesMember (label) * Financial liabilities, class [member] * All levels of fair value hierarchy [member]ifrs-full:FinancialAssetsAtFairValue (label)1790400000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * auo:DerivativeFinancialLiabilitiesForHedgingMember (label) * Financial assets, class [member] * auo:InterestRateSwapContractsLiabilityMember (label) * All levels of fair value hierarchy [member]ifrs-full:FinancialLiabilitiesAtFairValue (label)3540000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * auo:DerivativeFinancialLiabilitiesForHedgingMember (label) * Financial assets, class [member] * auo:InterestRateSwapContractsLiabilityMember (label) * ifrs-full:Level1OfFairValueHierarchyMember (label)ifrs-full:FinancialLiabilitiesAtFairValue (label)0iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * auo:DerivativeFinancialLiabilitiesForHedgingMember (label) * Financial assets, class [member] * auo:InterestRateSwapContractsLiabilityMember (label) * ifrs-full:Level2OfFairValueHierarchyMember (label)ifrs-full:FinancialLiabilitiesAtFairValue (label)3540000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * auo:DerivativeFinancialLiabilitiesForHedgingMember (label) * Financial assets, class [member] * auo:InterestRateSwapContractsLiabilityMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)ifrs-full:FinancialLiabilitiesAtFairValue (label)0iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember (label) * Financial assets, class [member] * auo:ForeignCurrencyForwardsContractsLiabilitiesMember (label) * All levels of fair value hierarchy [member]ifrs-full:FinancialLiabilitiesAtFairValue (label)896998000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember (label) * Financial assets, class [member] * auo:ForeignCurrencyForwardsContractsLiabilitiesMember (label) * ifrs-full:Level1OfFairValueHierarchyMember (label)ifrs-full:FinancialLiabilitiesAtFairValue (label)0iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember (label) * Financial assets, class [member] * auo:ForeignCurrencyForwardsContractsLiabilitiesMember (label) * ifrs-full:Level2OfFairValueHierarchyMember (label)ifrs-full:FinancialLiabilitiesAtFairValue (label)896998000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember (label) * Financial assets, class [member] * auo:ForeignCurrencyForwardsContractsLiabilitiesMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)ifrs-full:FinancialLiabilitiesAtFairValue (label)0iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember (label) * Financial assets, class [member] * auo:ForeignCurrencyForwardsContractsLiabilitiesMember (label) * All levels of fair value hierarchy [member]ifrs-full:FinancialLiabilitiesAtFairValue (label)106597000iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember (label) * Financial assets, class [member] * auo:ForeignCurrencyForwardsContractsLiabilitiesMember (label) * ifrs-full:Level1OfFairValueHierarchyMember (label)ifrs-full:FinancialLiabilitiesAtFairValue (label)0iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember (label) * Financial assets, class [member] * auo:ForeignCurrencyForwardsContractsLiabilitiesMember (label) * ifrs-full:Level2OfFairValueHierarchyMember (label)ifrs-full:FinancialLiabilitiesAtFairValue (label)106597000iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember (label) * Financial assets, class [member] * auo:ForeignCurrencyForwardsContractsLiabilitiesMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)ifrs-full:FinancialLiabilitiesAtFairValue (label)0iso4217:TWD-3

Fact Table
Network
264 - Disclosure - Financial Instruments (Details 2)
(http://auo.com/role/FinancialInstrumentsDetails2)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)auo:EffectOfChangeInExchangeRateFairValueMeasurementAssets (label)0iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)auo:EffectOfChangeInExchangeRateFairValueMeasurementAssets (label)-18000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)auo:EffectOfChangeInExchangeRateFairValueMeasurementAssets (label)0iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2014-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:FinancialAssetsReclassifiedOutOfAvailableforsaleFinancialAssetsAtFairValue (label)37345000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2015-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:FinancialAssetsReclassifiedOutOfAvailableforsaleFinancialAssetsAtFairValue (label)70938000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:FinancialAssetsReclassifiedOutOfAvailableforsaleFinancialAssetsAtFairValue (label)193582000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:FinancialAssetsReclassifiedOutOfAvailableforsaleFinancialAssetsAtFairValue (label)177815000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets (label)0iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets (label)0iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets (label)0iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets (label)99517000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets (label)-686000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets (label)-30000000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:PurchasesFairValueMeasurementAssets (label)33593000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:PurchasesFairValueMeasurementAssets (label)66948000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:PurchasesFairValueMeasurementAssets (label)14233000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:SalesFairValueMeasurementAssets (label)99517000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:SalesFairValueMeasurementAssets (label)0iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:SalesFairValueMeasurementAssets (label)0iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:TransfersIntoLevel3OfFairValueHierarchyAssets (label)0iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:TransfersIntoLevel3OfFairValueHierarchyAssets (label)56400000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:FinancialAssetsAvailableforsaleCategoryMember (label)ifrs-full:TransfersIntoLevel3OfFairValueHierarchyAssets (label)0iso4217:TWD-3

Fact Table
Network
265 - Disclosure - Financial Instruments (Details Textual)
(http://auo.com/role/FinancialInstrumentsDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Financial assets, category [member]Gains (losses) recognised in profit or loss attributable to change in unrealised gains or losses for assets held at end of period, fair value measurement0iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Financial assets, category [member]Gains (losses) recognised in profit or loss attributable to change in unrealised gains or losses for assets held at end of period, fair value measurement686000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Financial assets, category [member]Gains (losses) recognised in profit or loss attributable to change in unrealised gains or losses for assets held at end of period, fair value measurement30000000iso4217:TWD-3

Fact Table
Network
266 - Disclosure - Financial Risk Management (Details)
(http://auo.com/role/FinancialRiskManagementDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * Aggregated time bands [member]auo:FinancialLiabilitiesUndiscountedCashFlows (label)135299596000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * ifrs-full:LaterThanFiveYearsMember (label)auo:FinancialLiabilitiesUndiscountedCashFlows (label)9675048000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * Later than one year and not later than three years [member]auo:FinancialLiabilitiesUndiscountedCashFlows (label)75426560000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * Later than three years and not later than five years [member]auo:FinancialLiabilitiesUndiscountedCashFlows (label)27669469000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-12-31Financial instruments, class [member] * ifrs-full:NotLaterThanOneYearMember (label)auo:FinancialLiabilitiesUndiscountedCashFlows (label)22528519000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * Aggregated time bands [member]auo:FinancialLiabilitiesUndiscountedCashFlows (label)123653473000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * ifrs-full:LaterThanFiveYearsMember (label)auo:FinancialLiabilitiesUndiscountedCashFlows (label)6850253000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * Later than one year and not later than three years [member]auo:FinancialLiabilitiesUndiscountedCashFlows (label)68465403000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * Later than three years and not later than five years [member]auo:FinancialLiabilitiesUndiscountedCashFlows (label)33892568000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-12-31Financial instruments, class [member] * ifrs-full:NotLaterThanOneYearMember (label)auo:FinancialLiabilitiesUndiscountedCashFlows (label)14445249000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31auo:ForeignCurrencyForwardContractsInflowsMember (label) * Aggregated time bands [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)-37819838000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2016-12-31auo:ForeignCurrencyForwardContractsInflowsMember (label) * ifrs-full:LaterThanFiveYearsMember (label)ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-12-31auo:ForeignCurrencyForwardContractsInflowsMember (label) * Later than one year and not later than three years [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-12-31auo:ForeignCurrencyForwardContractsInflowsMember (label) * Later than three years and not later than five years [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2016-12-31auo:ForeignCurrencyForwardContractsInflowsMember (label) * ifrs-full:NotLaterThanOneYearMember (label)ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)-37819838000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2016-12-31auo:ForeignCurrencyForwardContractsOutflowsMember (label) * Aggregated time bands [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)38625310000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-12-31auo:ForeignCurrencyForwardContractsOutflowsMember (label) * ifrs-full:LaterThanFiveYearsMember (label)ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2016-12-31auo:ForeignCurrencyForwardContractsOutflowsMember (label) * Later than one year and not later than three years [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2016-12-31auo:ForeignCurrencyForwardContractsOutflowsMember (label) * Later than three years and not later than five years [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-12-31auo:ForeignCurrencyForwardContractsOutflowsMember (label) * ifrs-full:NotLaterThanOneYearMember (label)ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)38625310000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2016-12-31auo:InterestRateSwapContractsMember (label) * Aggregated time bands [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)3446000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2016-12-31auo:InterestRateSwapContractsMember (label) * ifrs-full:LaterThanFiveYearsMember (label)ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2016-12-31auo:InterestRateSwapContractsMember (label) * Later than one year and not later than three years [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2016-12-31auo:InterestRateSwapContractsMember (label) * Later than three years and not later than five years [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2016-12-31auo:InterestRateSwapContractsMember (label) * ifrs-full:NotLaterThanOneYearMember (label)ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)3446000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2017-12-31auo:ForeignCurrencyForwardContractsInflowsMember (label) * Aggregated time bands [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)-22124574000iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2017-12-31auo:ForeignCurrencyForwardContractsInflowsMember (label) * ifrs-full:LaterThanFiveYearsMember (label)ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2017-12-31auo:ForeignCurrencyForwardContractsInflowsMember (label) * Later than one year and not later than three years [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2017-12-31auo:ForeignCurrencyForwardContractsInflowsMember (label) * Later than three years and not later than five years [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2017-12-31auo:ForeignCurrencyForwardContractsInflowsMember (label) * ifrs-full:NotLaterThanOneYearMember (label)ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)-22124574000iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2017-12-31auo:ForeignCurrencyForwardContractsOutflowsMember (label) * Aggregated time bands [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)22170245000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2017-12-31auo:ForeignCurrencyForwardContractsOutflowsMember (label) * ifrs-full:LaterThanFiveYearsMember (label)ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2017-12-31auo:ForeignCurrencyForwardContractsOutflowsMember (label) * Later than one year and not later than three years [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2017-12-31auo:ForeignCurrencyForwardContractsOutflowsMember (label) * Later than three years and not later than five years [member]ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2017-12-31auo:ForeignCurrencyForwardContractsOutflowsMember (label) * ifrs-full:NotLaterThanOneYearMember (label)ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)22170245000iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2016-12-31auo:LongTermBorrowingMember (label) * ifrs-full:LaterThanFiveYearsMember (label)ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)8923108000iso4217:TWD-3
370001172494 (http://www.sec.gov/CIK)2016-12-31auo:RefundableDepositsMember (label) * ifrs-full:LaterThanFiveYearsMember (label)ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)751940000iso4217:TWD-3
380001172494 (http://www.sec.gov/CIK)2016-12-31auo:ShortTermBorrowingsMember (label) * ifrs-full:LaterThanFiveYearsMember (label)ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
390001172494 (http://www.sec.gov/CIK)2016-12-31auo:LongTermBorrowingMember (label) * Later than one year and not later than three years [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)75423482000iso4217:TWD-3
400001172494 (http://www.sec.gov/CIK)2016-12-31auo:RefundableDepositsMember (label) * Later than one year and not later than three years [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)3078000iso4217:TWD-3
410001172494 (http://www.sec.gov/CIK)2016-12-31auo:ShortTermBorrowingsMember (label) * Later than one year and not later than three years [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
420001172494 (http://www.sec.gov/CIK)2016-12-31auo:LongTermBorrowingMember (label) * Later than three years and not later than five years [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)27662194000iso4217:TWD-3
430001172494 (http://www.sec.gov/CIK)2016-12-31auo:RefundableDepositsMember (label) * Later than three years and not later than five years [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)7275000iso4217:TWD-3
440001172494 (http://www.sec.gov/CIK)2016-12-31auo:ShortTermBorrowingsMember (label) * Later than three years and not later than five years [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
450001172494 (http://www.sec.gov/CIK)2016-12-31auo:LongTermBorrowingMember (label) * Aggregated time bands [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)133125692000iso4217:TWD-3
460001172494 (http://www.sec.gov/CIK)2016-12-31auo:LongTermBorrowingMember (label) * ifrs-full:NotLaterThanOneYearMember (label)ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)21116908000iso4217:TWD-3
470001172494 (http://www.sec.gov/CIK)2016-12-31auo:RefundableDepositsMember (label) * ifrs-full:NotLaterThanOneYearMember (label)ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)75970000iso4217:TWD-3
480001172494 (http://www.sec.gov/CIK)2016-12-31auo:ShortTermBorrowingsMember (label) * ifrs-full:NotLaterThanOneYearMember (label)ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)526723000iso4217:TWD-3
490001172494 (http://www.sec.gov/CIK)2016-12-31auo:RefundableDepositsMember (label) * Aggregated time bands [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)838263000iso4217:TWD-3
500001172494 (http://www.sec.gov/CIK)2016-12-31auo:ShortTermBorrowingsMember (label) * Aggregated time bands [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)526723000iso4217:TWD-3
510001172494 (http://www.sec.gov/CIK)2017-12-31auo:LongTermBorrowingMember (label) * ifrs-full:LaterThanFiveYearsMember (label)ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)6055183000iso4217:TWD-3
520001172494 (http://www.sec.gov/CIK)2017-12-31auo:RefundableDepositsMember (label) * ifrs-full:LaterThanFiveYearsMember (label)ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)795070000iso4217:TWD-3
530001172494 (http://www.sec.gov/CIK)2017-12-31auo:ShortTermBorrowingsMember (label) * ifrs-full:LaterThanFiveYearsMember (label)ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
540001172494 (http://www.sec.gov/CIK)2017-12-31auo:LongTermBorrowingMember (label) * Later than one year and not later than three years [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)68455501000iso4217:TWD-3
550001172494 (http://www.sec.gov/CIK)2017-12-31auo:RefundableDepositsMember (label) * Later than one year and not later than three years [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)9902000iso4217:TWD-3
560001172494 (http://www.sec.gov/CIK)2017-12-31auo:ShortTermBorrowingsMember (label) * Later than one year and not later than three years [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
570001172494 (http://www.sec.gov/CIK)2017-12-31auo:LongTermBorrowingMember (label) * Later than three years and not later than five years [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)33892568000iso4217:TWD-3
580001172494 (http://www.sec.gov/CIK)2017-12-31auo:RefundableDepositsMember (label) * Later than three years and not later than five years [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
590001172494 (http://www.sec.gov/CIK)2017-12-31auo:ShortTermBorrowingsMember (label) * Later than three years and not later than five years [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)0iso4217:TWD-3
600001172494 (http://www.sec.gov/CIK)2017-12-31auo:LongTermBorrowingMember (label) * Aggregated time bands [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)119344944000iso4217:TWD-3
610001172494 (http://www.sec.gov/CIK)2017-12-31auo:LongTermBorrowingMember (label) * ifrs-full:NotLaterThanOneYearMember (label)ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)10941692000iso4217:TWD-3
620001172494 (http://www.sec.gov/CIK)2017-12-31auo:RefundableDepositsMember (label) * ifrs-full:NotLaterThanOneYearMember (label)ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)33510000iso4217:TWD-3
630001172494 (http://www.sec.gov/CIK)2017-12-31auo:ShortTermBorrowingsMember (label) * ifrs-full:NotLaterThanOneYearMember (label)ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)3424376000iso4217:TWD-3
640001172494 (http://www.sec.gov/CIK)2017-12-31auo:RefundableDepositsMember (label) * Aggregated time bands [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)838482000iso4217:TWD-3
650001172494 (http://www.sec.gov/CIK)2017-12-31auo:ShortTermBorrowingsMember (label) * Aggregated time bands [member]ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)3424376000iso4217:TWD-3

Fact Table
Network
267 - Disclosure - Financial Risk Management (Details 1)
(http://auo.com/role/FinancialRiskManagementDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31EUR currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialAssetsAmountDenominatedInForeignCurrency (label)106660000iso4217:EUR-3
20001172494 (http://www.sec.gov/CIK)2016-12-31JPY currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialAssetsAmountDenominatedInForeignCurrency (label)20236416000iso4217:JPY-3
30001172494 (http://www.sec.gov/CIK)2016-12-31USD currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialAssetsAmountDenominatedInForeignCurrency (label)2287148000iso4217:USD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31RMB currency [Member] * auo:HedgingNonmonetaryItemsMember (label)auo:FinancialAssetsAmountDenominatedInForeignCurrency (label)20758000iso4217:CNY-3
50001172494 (http://www.sec.gov/CIK)2016-12-31USD currency [Member] * auo:HedgingNonmonetaryItemsMember (label)auo:FinancialAssetsAmountDenominatedInForeignCurrency (label)3000000iso4217:USD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31EUR currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialAssetsAmountDenominatedInForeignCurrency (label)46517000iso4217:EUR-3
70001172494 (http://www.sec.gov/CIK)2017-12-31JPY currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialAssetsAmountDenominatedInForeignCurrency (label)10228194000iso4217:JPY-3
80001172494 (http://www.sec.gov/CIK)2017-12-31USD currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialAssetsAmountDenominatedInForeignCurrency (label)2084406000iso4217:USD-3
90001172494 (http://www.sec.gov/CIK)2017-12-31RMB currency [Member] * auo:HedgingNonmonetaryItemsMember (label)auo:FinancialAssetsAmountDenominatedInForeignCurrency (label)19426000iso4217:CNY-3
100001172494 (http://www.sec.gov/CIK)2017-12-31USD currency [Member] * auo:HedgingNonmonetaryItemsMember (label)auo:FinancialAssetsAmountDenominatedInForeignCurrency (label)3300000iso4217:USD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31EUR currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialAssetsCarryingAmount (label)3615241000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2016-12-31JPY currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialAssetsCarryingAmount (label)5611558000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-12-31USD currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialAssetsCarryingAmount (label)73902326000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-12-31RMB currency [Member] * auo:HedgingNonmonetaryItemsMember (label)auo:FinancialAssetsCarryingAmount (label)96298000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2016-12-31USD currency [Member] * auo:HedgingNonmonetaryItemsMember (label)auo:FinancialAssetsCarryingAmount (label)96936000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-12-31EUR currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialAssetsCarryingAmount (label)1657494000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2017-12-31JPY currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialAssetsCarryingAmount (label)2704334000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-12-31USD currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialAssetsCarryingAmount (label)62198675000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2017-12-31RMB currency [Member] * auo:HedgingNonmonetaryItemsMember (label)auo:FinancialAssetsCarryingAmount (label)88771000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2017-12-31USD currency [Member] * auo:HedgingNonmonetaryItemsMember (label)auo:FinancialAssetsCarryingAmount (label)98472000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2016-12-31EUR currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialLiabilitiesAmountDenominatedInForeignCurrency (label)987000iso4217:EUR-3
220001172494 (http://www.sec.gov/CIK)2016-12-31JPY currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialLiabilitiesAmountDenominatedInForeignCurrency (label)26820343000iso4217:JPY-3
230001172494 (http://www.sec.gov/CIK)2016-12-31USD currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialLiabilitiesAmountDenominatedInForeignCurrency (label)1099799000iso4217:USD-3
240001172494 (http://www.sec.gov/CIK)2017-12-31EUR currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialLiabilitiesAmountDenominatedInForeignCurrency (label)418000iso4217:EUR-3
250001172494 (http://www.sec.gov/CIK)2017-12-31JPY currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialLiabilitiesAmountDenominatedInForeignCurrency (label)27100546000iso4217:JPY-3
260001172494 (http://www.sec.gov/CIK)2017-12-31USD currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialLiabilitiesAmountDenominatedInForeignCurrency (label)1048371000iso4217:USD-3
270001172494 (http://www.sec.gov/CIK)2016-12-31EUR currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialLiabilitiesCarryingAmount (label)33454000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2016-12-31JPY currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialLiabilitiesCarryingAmount (label)7437281000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2016-12-31USD currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialLiabilitiesCarryingAmount (label)35536705000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2017-12-31EUR currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialLiabilitiesCarryingAmount (label)14894000iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2017-12-31JPY currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialLiabilitiesCarryingAmount (label)7165384000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2017-12-31USD currency [Member] * auo:HedgingMonetaryItemsMember (label)auo:FinancialLiabilitiesCarryingAmount (label)31283391000iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2016-12-31EUR currency [Member] * auo:HedgingMonetaryItemsMember (label)ifrs-full:ClosingForeignExchangeRate (label)33.895auo:DecimalItem3
340001172494 (http://www.sec.gov/CIK)2016-12-31JPY currency [Member] * auo:HedgingMonetaryItemsMember (label)ifrs-full:ClosingForeignExchangeRate (label)0.2773auo:DecimalItem4
350001172494 (http://www.sec.gov/CIK)2016-12-31USD currency [Member] * auo:HedgingMonetaryItemsMember (label)ifrs-full:ClosingForeignExchangeRate (label)32.312auo:DecimalItem3
360001172494 (http://www.sec.gov/CIK)2016-12-31RMB currency [Member] * auo:HedgingNonmonetaryItemsMember (label)ifrs-full:ClosingForeignExchangeRate (label)4.6391auo:DecimalItem4
370001172494 (http://www.sec.gov/CIK)2016-12-31USD currency [Member] * auo:HedgingNonmonetaryItemsMember (label)ifrs-full:ClosingForeignExchangeRate (label)32.312auo:DecimalItem3
380001172494 (http://www.sec.gov/CIK)2017-12-31EUR currency [Member] * auo:HedgingMonetaryItemsMember (label)ifrs-full:ClosingForeignExchangeRate (label)35.632xbrli:pure3
390001172494 (http://www.sec.gov/CIK)2017-12-31JPY currency [Member] * auo:HedgingMonetaryItemsMember (label)ifrs-full:ClosingForeignExchangeRate (label)0.2644xbrli:pure4
400001172494 (http://www.sec.gov/CIK)2017-12-31USD currency [Member] * auo:HedgingMonetaryItemsMember (label)ifrs-full:ClosingForeignExchangeRate (label)29.84xbrli:pure3
410001172494 (http://www.sec.gov/CIK)2017-12-31RMB currency [Member] * auo:HedgingNonmonetaryItemsMember (label)ifrs-full:ClosingForeignExchangeRate (label)4.5697auo:DecimalItem4
420001172494 (http://www.sec.gov/CIK)2017-12-31USD currency [Member] * auo:HedgingNonmonetaryItemsMember (label)ifrs-full:ClosingForeignExchangeRate (label)29.84auo:DecimalItem3

Fact Table
Network
268 - Disclosure - Financial Risk Management (Details 2)
(http://auo.com/role/FinancialRiskManagementDetails2)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Sensitivity analysis of foreign currency risk [Member] * Class of Stock [Domain]auo:IncreaseInNetProfitLossBeforeTaxDueToAppreciationReportingCurrencyRate (label)401217000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Sensitivity analysis of foreign currency risk [Member] * Class of Stock [Domain]auo:IncreaseInNetProfitLossBeforeTaxDueToAppreciationReportingCurrencyRate (label)280968000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Sensitivity analysis of foreign currency risk [Member] * Class of Stock [Domain]auo:IncreaseInNetProfitLossBeforeTaxDueToDepreciationReportingCurrencyRate (label)401217000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Sensitivity analysis of foreign currency risk [Member] * Class of Stock [Domain]auo:IncreaseInNetProfitLossBeforeTaxDueToDepreciationReportingCurrencyRate (label)280968000iso4217:TWD-3

Fact Table
Network
269 - Disclosure - Financial Risk Management (Details Textual)
(http://auo.com/role/FinancialRiskManagementDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Customers [member] * Floating interest rate [member]auo:DecreaseOrIncreaseInNetProfitLossBeforeTax (label)262936000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Customers [member] * Floating interest rate [member]auo:DecreaseOrIncreaseInNetProfitLossBeforeTax (label)307464000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Customers [member] * Floating interest rate [member]auo:DecreaseOrIncreaseInNetProfitLossBeforeTax (label)277612000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Customers [member] * Interest rate types [member]auo:DepreciationOrAppreciationRateOfReportingCurrency (label)0.01xbrli:pure2
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Customers [member] * Interest rate types [member]auo:DepreciationOrAppreciationRateOfReportingCurrency (label)0.01xbrli:pure2
60001172494 (http://www.sec.gov/CIK)2017-12-31Customers [member] * Floating interest rate [member]Borrowings, adjustment to interest rate basis0.0025xbrli:pure4
70001172494 (http://www.sec.gov/CIK)2017-12-31Customers [member] * Interest rate types [member]ifrs-full:CurrentAssetsLiabilities (label)69910848000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Customers [member] * Interest rate types [member]ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss (label)537248000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Customers [member] * Interest rate types [member]ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss (label)770325000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Customers [member] * Interest rate types [member]ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss (label)-1364929000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Major customers revenue [Member] * Interest rate types [member]Percentage of entity's revenue0.363xbrli:pure3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Major customers revenue [Member] * Interest rate types [member]Percentage of entity's revenue0.39xbrli:pure3

Fact Table
Network
270 - Disclosure - Capital Management (Details)
(http://auo.com/role/CapitalManagementDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:DebtToEquityRatio (label)1.3xbrli:pure1
20001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DebtToEquityRatio (label)1.02xbrli:pure2
30001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:DescriptionOfConversionOfInterestBearingDebtToEquity (label)0.71xbrli:pure2
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DescriptionOfConversionOfInterestBearingDebtToEquity (label)0.54xbrli:pure2
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullauo:DescriptionOfConversionOfNetDebtToEquity (label)0.25xbrli:pure2
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullauo:DescriptionOfConversionOfNetDebtToEquity (label)0.04xbrli:pure2
70001172494 (http://www.sec.gov/CIK)2016-12-31nullauo:InterestBearingDebtInstrumentsHeld (label)124789343000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31nullauo:InterestBearingDebtInstrumentsHeld (label)114032386000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2014-12-31nullifrs-full:Equity (label)173986932000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-12-31nullifrs-full:Equity (label)180661073000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:Equity (label)176836313000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:Equity (label)212817851000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-12-31nullifrs-full:Liabilities (label)229024452000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2017-12-31nullifrs-full:Liabilities (label)217352838000iso4217:TWD-3

Fact Table
Network
271 - Disclosure - Related-party Transactions (Details)
(http://auo.com/role/RelatedpartyTransactionsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullKey management personnel compensation367478000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullKey management personnel compensation356820000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullKey management personnel compensation568475000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits (label)2168000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits (label)1937000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits (label)2244000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31nullifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits (label)365310000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31nullifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits (label)354883000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31nullifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits (label)566231000iso4217:TWD-3

Fact Table
Network
272 - Disclosure - Related-party Transactions (Details 1)
(http://auo.com/role/RelatedpartyTransactionsDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:AmountsReceivableRelatedPartyTransactions (label)2533224000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31Associates [member] * Class of Stock [Domain]ifrs-full:AmountsReceivableRelatedPartyTransactions (label)58755000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]ifrs-full:AmountsReceivableRelatedPartyTransactions (label)0iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:AmountsReceivableRelatedPartyTransactions (label)2474469000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:AmountsReceivableRelatedPartyTransactions (label)1853062000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31Associates [member] * Class of Stock [Domain]ifrs-full:AmountsReceivableRelatedPartyTransactions (label)184948000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]ifrs-full:AmountsReceivableRelatedPartyTransactions (label)0iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:AmountsReceivableRelatedPartyTransactions (label)1668114000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions (label)20204008000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Associates [member] * Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions (label)8745681000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions (label)5453152000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions (label)6005175000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions (label)17427440000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Associates [member] * Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions (label)554889000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions (label)4105390000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions (label)12767161000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions (label)13176588000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Associates [member] * Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions (label)1216868000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions (label)0iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions (label)11959720000iso4217:TWD-3

Fact Table
Network
273 - Disclosure - Related-party Transactions (Details 2)
(http://auo.com/role/RelatedpartyTransactionsDetails2)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:PurchasesOfGoodsRelatedPartyTransactions (label)34937048000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Associates [member] * Class of Stock [Domain]ifrs-full:PurchasesOfGoodsRelatedPartyTransactions (label)19563609000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]ifrs-full:PurchasesOfGoodsRelatedPartyTransactions (label)4786344000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:PurchasesOfGoodsRelatedPartyTransactions (label)10587095000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:PurchasesOfGoodsRelatedPartyTransactions (label)31958277000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Associates [member] * Class of Stock [Domain]ifrs-full:PurchasesOfGoodsRelatedPartyTransactions (label)9886487000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]ifrs-full:PurchasesOfGoodsRelatedPartyTransactions (label)3754404000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:PurchasesOfGoodsRelatedPartyTransactions (label)18317386000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:PurchasesOfGoodsRelatedPartyTransactions (label)27273889000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Associates [member] * Class of Stock [Domain]ifrs-full:PurchasesOfGoodsRelatedPartyTransactions (label)8667555000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]ifrs-full:PurchasesOfGoodsRelatedPartyTransactions (label)1057106000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:PurchasesOfGoodsRelatedPartyTransactions (label)17549228000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties (label)8823065000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-12-31Associates [member] * Class of Stock [Domain]ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties (label)3734927000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties (label)0iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties (label)5088138000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2017-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties (label)7664731000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-12-31Associates [member] * Class of Stock [Domain]ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties (label)3233050000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties (label)0iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties (label)4431681000iso4217:TWD-3

Fact Table
Network
274 - Disclosure - Related-party Transactions (Details 3)
(http://auo.com/role/RelatedpartyTransactionsDetails3)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions (label)368497000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Associates [member] * Class of Stock [Domain]ifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions (label)368171000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions (label)326000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions (label)7391000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Associates [member] * Class of Stock [Domain]ifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions (label)7391000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions (label)0iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions (label)4350000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Associates [member] * Class of Stock [Domain]ifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions (label)1549000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions (label)2801000iso4217:TWD-3

Fact Table
Network
275 - Disclosure - Related-party Transactions (Details 4)
(http://auo.com/role/RelatedpartyTransactionsDetails4)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for related parties [member]auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (label)44000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Associates [member]auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (label)0iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label)auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (label)8000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:OtherRelatedPartiesMember (label)auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (label)36000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for related parties [member]auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (label)22000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Associates [member]auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (label)22000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label)auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (label)0iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:OtherRelatedPartiesMember (label)auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (label)0iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for related parties [member]auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (label)2212000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Associates [member]auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (label)0iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label)auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (label)0iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:OtherRelatedPartiesMember (label)auo:GainsOnDisposalsOfPropertyPlantAndEquipmentAndOthers (label)2212000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for related parties [member]ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)1762401000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Associates [member]ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)0iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label)ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)8000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:OtherRelatedPartiesMember (label)ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)1790000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for related parties [member]ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)789682000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Associates [member]ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)926000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label)ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)0iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:OtherRelatedPartiesMember (label)ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)0iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for related parties [member]ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)1149649000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Associates [member]ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)0iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label)ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)0iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:OtherRelatedPartiesMember (label)ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)3352000iso4217:TWD-3

Fact Table
Network
276 - Disclosure - Related-party Transactions (Details 5)
(http://auo.com/role/RelatedpartyTransactionsDetails5)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:TradeAndOtherReceivablesDueFromRelatedParties (label)34288000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31Associates [member] * Class of Stock [Domain]ifrs-full:TradeAndOtherReceivablesDueFromRelatedParties (label)10970000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:TradeAndOtherReceivablesDueFromRelatedParties (label)23318000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:TradeAndOtherReceivablesDueFromRelatedParties (label)54093000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31Associates [member] * Class of Stock [Domain]ifrs-full:TradeAndOtherReceivablesDueFromRelatedParties (label)47746000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:TradeAndOtherReceivablesDueFromRelatedParties (label)6347000iso4217:TWD-3

Fact Table
Network
277 - Disclosure - Related-party Transactions (Details 6)
(http://auo.com/role/RelatedpartyTransactionsDetails6)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Entity's total for related parties [member] * Class of Stock [Domain]auo:OtherPayablesDueToRelatedParties (label)27341000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31Associates [member] * Class of Stock [Domain]auo:OtherPayablesDueToRelatedParties (label)16218000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]auo:OtherPayablesDueToRelatedParties (label)406000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]auo:OtherPayablesDueToRelatedParties (label)10717000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31Entity's total for related parties [member] * Class of Stock [Domain]auo:OtherPayablesDueToRelatedParties (label)24438000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31Associates [member] * Class of Stock [Domain]auo:OtherPayablesDueToRelatedParties (label)9009000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]auo:OtherPayablesDueToRelatedParties (label)292000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]auo:OtherPayablesDueToRelatedParties (label)15137000iso4217:TWD-3

Fact Table
Network
278 - Disclosure - Related-party Transactions (Details 7)
(http://auo.com/role/RelatedpartyTransactionsDetails7)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for related parties [member] * Class of Stock [Domain]auo:RentalIncomeRelatedParty (label)115089000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Associates [member] * Class of Stock [Domain]auo:RentalIncomeRelatedParty (label)61159000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]auo:RentalIncomeRelatedParty (label)6659000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]auo:RentalIncomeRelatedParty (label)47271000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for related parties [member] * Class of Stock [Domain]auo:RentalIncomeRelatedParty (label)128501000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Associates [member] * Class of Stock [Domain]auo:RentalIncomeRelatedParty (label)31858000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]auo:RentalIncomeRelatedParty (label)6611000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]auo:RentalIncomeRelatedParty (label)90032000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for related parties [member] * Class of Stock [Domain]auo:RentalIncomeRelatedParty (label)137261000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Associates [member] * Class of Stock [Domain]auo:RentalIncomeRelatedParty (label)48223000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]auo:RentalIncomeRelatedParty (label)6611000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]auo:RentalIncomeRelatedParty (label)82427000iso4217:TWD-3

Fact Table
Network
279 - Disclosure - Related-party Transactions (Details 8)
(http://auo.com/role/RelatedpartyTransactionsDetails8)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions (label)35559000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Associates [member] * Class of Stock [Domain]ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions (label)21132000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions (label)11538000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions (label)2889000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions (label)28558000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Associates [member] * Class of Stock [Domain]ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions (label)15083000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions (label)8301000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions (label)5174000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for related parties [member] * Class of Stock [Domain]ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions (label)23557000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Associates [member] * Class of Stock [Domain]ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions (label)14311000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions (label)0iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions (label)9246000iso4217:TWD-3

Fact Table
Network
280 - Disclosure - Related-party Transactions (Details 9)
(http://auo.com/role/RelatedpartyTransactionsDetails9)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Entity's total for related parties [member] * Class of Stock [Domain]auo:RentalAndOtherExpensesRelatedPartyTransactions (label)146129000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Associates [member] * Class of Stock [Domain]auo:RentalAndOtherExpensesRelatedPartyTransactions (label)104415000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]auo:RentalAndOtherExpensesRelatedPartyTransactions (label)1168000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]auo:RentalAndOtherExpensesRelatedPartyTransactions (label)40546000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Entity's total for related parties [member] * Class of Stock [Domain]auo:RentalAndOtherExpensesRelatedPartyTransactions (label)113451000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Associates [member] * Class of Stock [Domain]auo:RentalAndOtherExpensesRelatedPartyTransactions (label)36499000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]auo:RentalAndOtherExpensesRelatedPartyTransactions (label)21821000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]auo:RentalAndOtherExpensesRelatedPartyTransactions (label)55131000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Entity's total for related parties [member] * Class of Stock [Domain]auo:RentalAndOtherExpensesRelatedPartyTransactions (label)64446000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Associates [member] * Class of Stock [Domain]auo:RentalAndOtherExpensesRelatedPartyTransactions (label)28017000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:JointVenturesWhereEntityIsVenturerMember (label) * Class of Stock [Domain]auo:RentalAndOtherExpensesRelatedPartyTransactions (label)1389000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31ifrs-full:OtherRelatedPartiesMember (label) * Class of Stock [Domain]auo:RentalAndOtherExpensesRelatedPartyTransactions (label)35040000iso4217:TWD-3

Fact Table
Network
281 - Disclosure - Related-party Transactions (Details Textual)
(http://auo.com/role/RelatedpartyTransactionsDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Related parties [member] * Ranges [member] * Class of Stock [Domain]ifrs-full:DividendsReceived (label)380433000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Related parties [member] * Ranges [member] * Class of Stock [Domain]ifrs-full:DividendsReceived (label)307481000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Related parties [member] * Ranges [member] * Class of Stock [Domain]ifrs-full:DividendsReceived (label)420547000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CollectionTermsForSalesMember (label) * Bottom of range [member] * Class of Stock [Domain]Explanation of terms and conditions of outstanding balances for related party transaction30 days
50001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:PaymentTermsForPurchasesMember (label) * Bottom of range [member] * Class of Stock [Domain]Explanation of terms and conditions of outstanding balances for related party transaction30 days
60001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Collection terms for leasing [Member] * Ranges [member] * Class of Stock [Domain]Explanation of terms and conditions of outstanding balances for related party transaction15 days
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CollectionTermsForSalesMember (label) * Top of range [member] * Class of Stock [Domain]Explanation of terms and conditions of outstanding balances for related party transaction55 days
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:PaymentTermsForPurchasesMember (label) * Top of range [member] * Class of Stock [Domain]Explanation of terms and conditions of outstanding balances for related party transaction120 days

Fact Table
Network
282 - Disclosure - Pledged Assets (Details)
(http://auo.com/role/PledgedAssetsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * Property, Plant and Equipment [Member]ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities (label)79228661000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * ifrs-full:LandAndBuildingsMember (label)ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities (label)52076840000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31Financial assets, category [member] * ifrs-full:MachineryMember (label)ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities (label)27058442000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31auo:RestrictedCashInBanksMember (label) * Property, Plant and Equipment [Member]ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities (label)93379000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * Property, Plant and Equipment [Member]ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities (label)59261716000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * ifrs-full:LandAndBuildingsMember (label)ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities (label)42031020000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31Financial assets, category [member] * ifrs-full:MachineryMember (label)ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities (label)17143591000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31auo:RestrictedCashInBanksMember (label) * Property, Plant and Equipment [Member]ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities (label)87105000iso4217:TWD-3

Fact Table
Network
283 - Disclosure - Contingent Liabilities and Commitments (Details)
(http://auo.com/role/ContingentLiabilitiesAndCommitmentsDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-12-31Borrowings by name [member]auo:LettersOfCredit (label)15029000iso4217:USD-3
20001172494 (http://www.sec.gov/CIK)2017-12-31Borrowings by name [member]auo:LettersOfCredit (label)2761778000iso4217:JPY-3

Fact Table
Network
284 - Disclosure - Contingent Liabilities and Commitments (Details Textual)
(http://auo.com/role/ContingentLiabilitiesAndCommitmentsDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-09-02 to 2016-09-30auo:SunpowerTechnologyLtdMember (label)auo:ConsiderationTransferredFromSalesOfInterestsInJointVentures (label)170100000iso4217:USD-3
20001172494 (http://www.sec.gov/CIK)2016-09-02 to 2016-09-30auo:SunpowerTechnologyLtdMember (label)auo:ConsiderationTransferredFromSalesOfInterestsInJointVentures (label)5408546000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-09-01 to 2015-09-30Entity's total for subsidiaries [member]auo:PaymentsForSettlement (label)500000000iso4217:USD-6
40001172494 (http://www.sec.gov/CIK)2017-12-31Entity's total for subsidiaries [member]Contractual commitments for acquisition of property, plant and equipment25561337000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-06-30Entity's total for subsidiaries [member]Legal proceedings provision49910000iso4217:CNY-4

Fact Table
Network
285 - Disclosure - Segment, Geographic and Revenue Information (Details)
(http://auo.com/role/SegmentGeographicAndRevenueInformationDetails)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:DepreciationAndAmortisationExpense (label)47745849000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:DisplaySegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:DepreciationAndAmortisationExpense (label)44790075000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:SolarSegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:DepreciationAndAmortisationExpense (label)2955774000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:DepreciationAndAmortisationExpense (label)39693240000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:DisplaySegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:DepreciationAndAmortisationExpense (label)37860430000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:SolarSegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:DepreciationAndAmortisationExpense (label)1832810000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:DepreciationAndAmortisationExpense (label)36429836000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:DisplaySegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:DepreciationAndAmortisationExpense (label)34816463000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:SolarSegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:DepreciationAndAmortisationExpense (label)1613373000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:FinanceCosts (label)2591023000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:FinanceCosts (label)2707887000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:FinanceCosts (label)2867861000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:OtherGainsLosses (label)-9978320000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:OtherGainsLosses (label)-925673000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:OtherGainsLosses (label)-976560000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:OtherIncome (label)2197593000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:OtherIncome (label)2380228000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:OtherIncome (label)3829897000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:ProfitLossBeforeTax (label)7598850000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:ProfitLossBeforeTax (label)11185902000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:ProfitLossBeforeTax (label)39363606000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:ProfitLossFromOperatingActivities (label)17521148000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:DisplaySegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:ProfitLossFromOperatingActivities (label)19225952000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:SolarSegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:ProfitLossFromOperatingActivities (label)-1704804000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:ProfitLossFromOperatingActivities (label)12338456000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:DisplaySegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:ProfitLossFromOperatingActivities (label)12703548000iso4217:TWD-3
270001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:SolarSegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:ProfitLossFromOperatingActivities (label)-365092000iso4217:TWD-3
280001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:ProfitLossFromOperatingActivities (label)39139124000iso4217:TWD-3
290001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:DisplaySegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:ProfitLossFromOperatingActivities (label)39971375000iso4217:TWD-3
300001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:SolarSegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:ProfitLossFromOperatingActivities (label)-832251000iso4217:TWD-3
310001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:Revenue (label)360346494000iso4217:TWD-3
320001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:DisplaySegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:Revenue (label)333392294000iso4217:TWD-3
330001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:SolarSegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:Revenue (label)26954200000iso4217:TWD-3
340001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:Revenue (label)329089036000iso4217:TWD-3
350001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:DisplaySegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:Revenue (label)304826682000iso4217:TWD-3
360001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:SolarSegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:Revenue (label)24262354000iso4217:TWD-3
370001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:Revenue (label)341028267000iso4217:TWD-3
380001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:DisplaySegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:Revenue (label)322335330000iso4217:TWD-3
390001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:SolarSegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:Revenue (label)18692937000iso4217:TWD-3
400001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)449452000iso4217:TWD-3
410001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)100778000iso4217:TWD-3
420001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod (label)239006000iso4217:TWD-3
430001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:WritedownsReversalsOfInventories (label)5661266000iso4217:TWD-3
440001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:DisplaySegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:WritedownsReversalsOfInventories (label)5607166000iso4217:TWD-3
450001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:SolarSegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:WritedownsReversalsOfInventories (label)54100000iso4217:TWD-3
460001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:WritedownsReversalsOfInventories (label)3673213000iso4217:TWD-3
470001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:DisplaySegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:WritedownsReversalsOfInventories (label)3288067000iso4217:TWD-3
480001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:SolarSegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:WritedownsReversalsOfInventories (label)385146000iso4217:TWD-3
490001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Statement Business Segment [Domain] * Entity's total for segment consolidation items [member]ifrs-full:WritedownsReversalsOfInventories (label)3756726000iso4217:TWD-3
500001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:DisplaySegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:WritedownsReversalsOfInventories (label)3423097000iso4217:TWD-3
510001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:SolarSegmentMember (label) * Entity's total for segment consolidation items [member]ifrs-full:WritedownsReversalsOfInventories (label)333629000iso4217:TWD-3

Fact Table
Network
286 - Disclosure - Segment, Geographic and Revenue Information (Details 1)
(http://auo.com/role/SegmentGeographicAndRevenueInformationDetails1)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2016-12-31Geographical areas [member]auo:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssets (label)232569053000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2016-12-31auo:OthersMember (label)auo:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssets (label)15383473000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2016-12-31auo:PrcMember (label)auo:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssets (label)68356214000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2016-12-31auo:TaiwanMember (label)auo:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssets (label)148829366000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2017-12-31Geographical areas [member]auo:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssets (label)232980713000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2017-12-31auo:OthersMember (label)auo:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssets (label)11037333000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2017-12-31auo:PrcMember (label)auo:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssets (label)67846109000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-12-31auo:TaiwanMember (label)auo:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssets (label)154097271000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Geographical areas [member]ifrs-full:Revenue (label)360346494000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:JapanMember (label)ifrs-full:Revenue (label)37903886000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:OthersMember (label)ifrs-full:Revenue (label)49129021000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:PrcMember (label)ifrs-full:Revenue (label)123476526000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:SingaporeMember (label)ifrs-full:Revenue (label)30210618000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:TaiwanMember (label)ifrs-full:Revenue (label)119626443000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Geographical areas [member]ifrs-full:Revenue (label)329089036000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:JapanMember (label)ifrs-full:Revenue (label)33346041000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:OthersMember (label)ifrs-full:Revenue (label)44797228000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:PrcMember (label)ifrs-full:Revenue (label)115110137000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:SingaporeMember (label)ifrs-full:Revenue (label)31776305000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:TaiwanMember (label)ifrs-full:Revenue (label)104059325000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Geographical areas [member]ifrs-full:Revenue (label)341028267000iso4217:TWD-3
220001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:JapanMember (label)ifrs-full:Revenue (label)32739262000iso4217:TWD-3
230001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:OthersMember (label)ifrs-full:Revenue (label)38719680000iso4217:TWD-3
240001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:PrcMember (label)ifrs-full:Revenue (label)125341648000iso4217:TWD-3
250001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:SingaporeMember (label)ifrs-full:Revenue (label)35939290000iso4217:TWD-3
260001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:TaiwanMember (label)ifrs-full:Revenue (label)108288387000iso4217:TWD-3

Fact Table
Network
287 - Disclosure - Segment, Geographic and Revenue Information (Details 2)
(http://auo.com/role/SegmentGeographicAndRevenueInformationDetails2)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:MajorCustomerMember (label) * Customers [member]auo:PercentageOfConsolidatedNetRevenue (label)0.12xbrli:pure2
20001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:MajorCustomerMember (label) * Customers [member]auo:PercentageOfConsolidatedNetRevenue (label)0.11xbrli:pure2
30001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:MajorCustomerMember (label) * Customers [member]auo:PercentageOfConsolidatedNetRevenue (label)0.13xbrli:pure2
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Revenue Customer [Domain] * Customers [member]ifrs-full:Revenue (label)360346494000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:MajorCustomerMember (label) * Customers [member]ifrs-full:Revenue (label)42173089000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Revenue Customer [Domain] * Customers [member]ifrs-full:Revenue (label)329089036000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:MajorCustomerMember (label) * Customers [member]ifrs-full:Revenue (label)37306348000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Revenue Customer [Domain] * Customers [member]ifrs-full:Revenue (label)341028267000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:MajorCustomerMember (label) * Customers [member]ifrs-full:Revenue (label)43645518000iso4217:TWD-3

Fact Table
Network
288 - Disclosure - Segment, Geographic and Revenue Information (Details 3)
(http://auo.com/role/SegmentGeographicAndRevenueInformationDetails3)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Products and services [member]ifrs-full:Revenue (label)360346494000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:CommercialAndOtherProductsMember (label)ifrs-full:Revenue (label)49512418000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:MobileDeviceMember (label)ifrs-full:Revenue (label)23622445000iso4217:TWD-3
40001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:MobilePcsMember (label)ifrs-full:Revenue (label)52488064000iso4217:TWD-3
50001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:MonitorMember (label)ifrs-full:Revenue (label)48234547000iso4217:TWD-3
60001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:SolarProductsMember (label)ifrs-full:Revenue (label)26954200000iso4217:TWD-3
70001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31auo:TelevisionsMember (label)ifrs-full:Revenue (label)159534820000iso4217:TWD-3
80001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Products and services [member]ifrs-full:Revenue (label)329089036000iso4217:TWD-3
90001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:CommercialAndOtherProductsMember (label)ifrs-full:Revenue (label)52746574000iso4217:TWD-3
100001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:MobileDeviceMember (label)ifrs-full:Revenue (label)14170637000iso4217:TWD-3
110001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:MobilePcsMember (label)ifrs-full:Revenue (label)52721494000iso4217:TWD-3
120001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:MonitorMember (label)ifrs-full:Revenue (label)44668054000iso4217:TWD-3
130001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:SolarProductsMember (label)ifrs-full:Revenue (label)24262354000iso4217:TWD-3
140001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31auo:TelevisionsMember (label)ifrs-full:Revenue (label)140519923000iso4217:TWD-3
150001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Products and services [member]ifrs-full:Revenue (label)341028267000iso4217:TWD-3
160001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:CommercialAndOtherProductsMember (label)ifrs-full:Revenue (label)53128684000iso4217:TWD-3
170001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:MobileDeviceMember (label)ifrs-full:Revenue (label)14858803000iso4217:TWD-3
180001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:MobilePcsMember (label)ifrs-full:Revenue (label)56209501000iso4217:TWD-3
190001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:MonitorMember (label)ifrs-full:Revenue (label)45696144000iso4217:TWD-3
200001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:SolarProductsMember (label)ifrs-full:Revenue (label)18692937000iso4217:TWD-3
210001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31auo:TelevisionsMember (label)ifrs-full:Revenue (label)152442198000iso4217:TWD-3

Fact Table
Network
289 - Disclosure - Subsequent Events (Details Textual)
(http://auo.com/role/SubsequentEventsDetailsTextual)
Table(implied)
#Reporting Entity [Axis]Period [Axis]Scenario [Axis]ConceptFact ValueUnitRoundingParenthetical Explanations
10001172494 (http://www.sec.gov/CIK)2017-12-31Amendment to statutory tax rate [Member] * Non-adjusting events after reporting period [member] * Scenario, Unspecified [Domain] * Subsequent Event Type [Domain]auo:IncreaseThroughChangeInTaxRateDeferredTaxAssets (label)998697000iso4217:TWD-3
20001172494 (http://www.sec.gov/CIK)2017-12-31Amendment to statutory tax rate [Member] * Non-adjusting events after reporting period [member] * Scenario, Unspecified [Domain] * Subsequent Event Type [Domain]auo:IncreaseThroughChangeInTaxRateDeferredTaxLiability (label)214490000iso4217:TWD-3
30001172494 (http://www.sec.gov/CIK)2018-01-01 to 2018-01-31Scenario for tax [Domain] * auo:SubsequentEventsMember (label) * Scenario, Unspecified [Domain] * Subsequent Event Type [Domain]auo:ProceedsFromSubsidiaryCapitalReturn (label)7905000iso4217:USD-3
40001172494 (http://www.sec.gov/CIK)2018-03-13Scenario for tax [Domain] * auo:SubsequentEventsMember (label) * Scenario, Unspecified [Domain] * Subsequent Event Type [Domain]ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred (label)28000000iso4217:USD-6
50001172494 (http://www.sec.gov/CIK)2015-01-01 to 2015-12-31Scenario for tax [Domain] * Non-adjusting events after reporting period [member] * Scenario, Unspecified [Domain] * Subsequent Event Type [Domain]ifrs-full:ApplicableTaxRate (label)0.17xbrli:pure2
60001172494 (http://www.sec.gov/CIK)2016-01-01 to 2016-12-31Scenario for tax [Domain] * Non-adjusting events after reporting period [member] * Scenario, Unspecified [Domain] * Subsequent Event Type [Domain]ifrs-full:ApplicableTaxRate (label)0.17xbrli:pure2
70001172494 (http://www.sec.gov/CIK)2017-01-01 to 2017-12-31Scenario for tax [Domain] * Non-adjusting events after reporting period [member] * Scenario, Unspecified [Domain] * Subsequent Event Type [Domain]ifrs-full:ApplicableTaxRate (label)0.17xbrli:pure2
80001172494 (http://www.sec.gov/CIK)2018-01-01 to 2018-12-31Amendment to statutory tax rate [Member] * Non-adjusting events after reporting period [member] * Scenario, Unspecified [Domain] * Subsequent Event Type [Domain]ifrs-full:ApplicableTaxRate (label)0.2xbrli:pure1

 

Rules

TypeDefinedBoundDerivedOKFail
formula00000
existenceAssertion00000
valueAssertion00000
calculation195780075030

Rule Details

TypeName Rule ExpressionProlog form
calculationauo:NotesAndAccountsReceivableNetIncludingRelatedParties (in AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesDetails)
  • derived:0
  • ok:2
  • failed:0
 total=TradeAndOtherReceivablesCurrentGross_3*1+(AllowanceAccountForCreditLossesOfFinancialAssets_2* -1+AllowanceForSalesReturnsAndDiscounts_1* -1)
calculation('http://auo.com/role/AccountsReceivableNetIncludingRelatedAndUnrelatedPartiesDetails',auo:'NotesAndAccountsReceivableNetIncludingRelatedParties') valueAssertion /* not loadable */
  total=TradeAndOtherReceivablesCurrentGross_3*1+(AllowanceAccountForCreditLossesOfFinancialAssets_2* -1+AllowanceForSalesReturnsAndDiscounts_1* -1)
  variables
  total: [concept(auo:'NotesAndAccountsReceivableNetIncludingRelatedParties')],
  TradeAndOtherReceivablesCurrentGross_3: [concept(auo:'TradeAndOtherReceivablesCurrentGross')],
  AllowanceAccountForCreditLossesOfFinancialAssets_2: [concept('ifrs-full':'AllowanceAccountForCreditLossesOfFinancialAssets')],
  AllowanceForSalesReturnsAndDiscounts_1: [concept(auo:'AllowanceForSalesReturnsAndDiscounts')].
calculationifrs-full:AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital (in ConsolidatedStatementsOfCashFlows)
  • derived:0
  • ok:3
  • failed:0
 total=DepreciationExpense_15*1+(AmortisationExpense_14*1+(AdjustmentsForInterestExpense_13*1+(AdjustmentsForInterestIncome_12* -1+(AdjustmentsForDividendIncome_11* -1+(ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_10* -1+(GainsLossesOnDisposalsOfPropertyPlantAndEquipment_9* -1+(GainsLossesOnDisposalsOfInvestments_8* -1+(InventoryWritedowns_7*1+(ImpairmentLoss_6*1+(OtherAdjustmentsForNoncashItems_5*1+(OtherAdjustmentsForWhichCashEffectsAreInvestingOrFinancingCashFlow_4*1+(AdjustmentsForFairValueGainsLosses_3*1+(AdjustmentsForUnrealisedForeignExchangeLossesGains_2*1+OtherAdjustmentsToReconcileProfitLoss_1*1)))))))))))))
calculation('http://auo.com/role/ConsolidatedStatementsOfCashFlows','ifrs-full':'AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital') valueAssertion /* not loadable */
  total=DepreciationExpense_15*1+(AmortisationExpense_14*1+(AdjustmentsForInterestExpense_13*1+(AdjustmentsForInterestIncome_12* -1+(AdjustmentsForDividendIncome_11* -1+(ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_10* -1+(GainsLossesOnDisposalsOfPropertyPlantAndEquipment_9* -1+(GainsLossesOnDisposalsOfInvestments_8* -1+(InventoryWritedowns_7*1+(ImpairmentLoss_6*1+(OtherAdjustmentsForNoncashItems_5*1+(OtherAdjustmentsForWhichCashEffectsAreInvestingOrFinancingCashFlow_4*1+(AdjustmentsForFairValueGainsLosses_3*1+(AdjustmentsForUnrealisedForeignExchangeLossesGains_2*1+OtherAdjustmentsToReconcileProfitLoss_1*1)))))))))))))
  variables
  total: [concept('ifrs-full':'AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital')],
  DepreciationExpense_15: [concept('ifrs-full':'DepreciationExpense')],
  AmortisationExpense_14: [concept('ifrs-full':'AmortisationExpense')],
  AdjustmentsForInterestExpense_13: [concept('ifrs-full':'AdjustmentsForInterestExpense')],
  AdjustmentsForInterestIncome_12: [concept('ifrs-full':'AdjustmentsForInterestIncome')],
  AdjustmentsForDividendIncome_11: [concept('ifrs-full':'AdjustmentsForDividendIncome')],
  ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_10: [concept('ifrs-full':'ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod')],
  GainsLossesOnDisposalsOfPropertyPlantAndEquipment_9: [concept('ifrs-full':'GainsLossesOnDisposalsOfPropertyPlantAndEquipment')],
  GainsLossesOnDisposalsOfInvestments_8: [concept('ifrs-full':'GainsLossesOnDisposalsOfInvestments')],
  InventoryWritedowns_7: [concept(auo:'InventoryWritedowns')],
  ImpairmentLoss_6: [concept('ifrs-full':'ImpairmentLoss')],
  OtherAdjustmentsForNoncashItems_5: [concept('ifrs-full':'OtherAdjustmentsForNoncashItems')],
  OtherAdjustmentsForWhichCashEffectsAreInvestingOrFinancingCashFlow_4: [concept('ifrs-full':'OtherAdjustmentsForWhichCashEffectsAreInvestingOrFinancingCashFlow')],
  AdjustmentsForFairValueGainsLosses_3: [concept('ifrs-full':'AdjustmentsForFairValueGainsLosses')],
  AdjustmentsForUnrealisedForeignExchangeLossesGains_2: [concept('ifrs-full':'AdjustmentsForUnrealisedForeignExchangeLossesGains')],
  OtherAdjustmentsToReconcileProfitLoss_1: [concept('ifrs-full':'OtherAdjustmentsToReconcileProfitLoss')].
calculationifrs-full:CashFlowsFromUsedInFinancingActivities (in ConsolidatedStatementsOfCashFlows)
  • derived:0
  • ok:3
  • failed:0
 total=CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings_8*1+(PaymentToAcquireConvertibleBondsPayable_7* -1+(RepaymentsOfBondsNotesAndDebentures_6* -1+(ProceedsFromNoncurrentBorrowings_5*1+(RepaymentsOfNoncurrentBorrowings_4* -1+(OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities_3*1+(DividendsPaidClassifiedAsFinancingActivities_2* -1+NetChangeOfNocontrollingInterestAndOthers_1* -1))))))
calculation('http://auo.com/role/ConsolidatedStatementsOfCashFlows','ifrs-full':'CashFlowsFromUsedInFinancingActivities') valueAssertion /* not loadable */
  total=CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings_8*1+(PaymentToAcquireConvertibleBondsPayable_7* -1+(RepaymentsOfBondsNotesAndDebentures_6* -1+(ProceedsFromNoncurrentBorrowings_5*1+(RepaymentsOfNoncurrentBorrowings_4* -1+(OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities_3*1+(DividendsPaidClassifiedAsFinancingActivities_2* -1+NetChangeOfNocontrollingInterestAndOthers_1* -1))))))
  variables
  total: [concept('ifrs-full':'CashFlowsFromUsedInFinancingActivities')],
  CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings_8: [concept('ifrs-full':'CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings')],
  PaymentToAcquireConvertibleBondsPayable_7: [concept(auo:'PaymentToAcquireConvertibleBondsPayable')],
  RepaymentsOfBondsNotesAndDebentures_6: [concept('ifrs-full':'RepaymentsOfBondsNotesAndDebentures')],
  ProceedsFromNoncurrentBorrowings_5: [concept('ifrs-full':'ProceedsFromNoncurrentBorrowings')],
  RepaymentsOfNoncurrentBorrowings_4: [concept('ifrs-full':'RepaymentsOfNoncurrentBorrowings')],
  OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities_3: [concept('ifrs-full':'OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities')],
  DividendsPaidClassifiedAsFinancingActivities_2: [concept('ifrs-full':'DividendsPaidClassifiedAsFinancingActivities')],
  NetChangeOfNocontrollingInterestAndOthers_1: [concept(auo:'NetChangeOfNocontrollingInterestAndOthers')].
calculationifrs-full:CashFlowsFromUsedInInvestingActivities (in ConsolidatedStatementsOfCashFlows)
  • derived:0
  • ok:3
  • failed:0
 total=PurchaseOfAvailableforsaleFinancialAssets_11* -1+(ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets_10*1+(ProceedsFromReturnOfCapitalByAvailableforsaleFinancialAssets_9*1+(PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod_8* -1+(ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_7*1+(PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_6* -1+(ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_5*1+(CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments_4*1+(PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_3* -1+(OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities_2*1+CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_1*1)))))))))
calculation('http://auo.com/role/ConsolidatedStatementsOfCashFlows','ifrs-full':'CashFlowsFromUsedInInvestingActivities') valueAssertion /* not loadable */
  total=PurchaseOfAvailableforsaleFinancialAssets_11* -1+(ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets_10*1+(ProceedsFromReturnOfCapitalByAvailableforsaleFinancialAssets_9*1+(PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod_8* -1+(ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_7*1+(PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_6* -1+(ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_5*1+(CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments_4*1+(PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_3* -1+(OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities_2*1+CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_1*1)))))))))
  variables
  total: [concept('ifrs-full':'CashFlowsFromUsedInInvestingActivities')],
  PurchaseOfAvailableforsaleFinancialAssets_11: [concept('ifrs-full':'PurchaseOfAvailableforsaleFinancialAssets')],
  ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets_10: [concept('ifrs-full':'ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets')],
  ProceedsFromReturnOfCapitalByAvailableforsaleFinancialAssets_9: [concept(auo:'ProceedsFromReturnOfCapitalByAvailableforsaleFinancialAssets')],
  PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod_8: [concept('ifrs-full':'PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod')],
  ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_7: [concept('ifrs-full':'ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod')],
  PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_6: [concept('ifrs-full':'PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities')],
  ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_5: [concept('ifrs-full':'ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities')],
  CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments_4: [concept('ifrs-full':'CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments')],
  PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_3: [concept('ifrs-full':'PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities')],
  OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities_2: [concept('ifrs-full':'OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities')],
  CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_1: [concept('ifrs-full':'CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities')].
calculationifrs-full:CashFlowsFromUsedInOperatingActivities (in ConsolidatedStatementsOfCashFlows)
  • derived:0
  • ok:3
  • failed:0
 total=CashFlowsFromUsedInOperations_5*1+(InterestReceivedClassifiedAsOperatingActivities_4*1+(DividendsReceivedClassifiedAsOperatingActivities_3*1+(InterestPaidClassifiedAsOperatingActivities_2* -1+IncomeTaxesPaidClassifiedAsOperatingActivities_1* -1)))
calculation('http://auo.com/role/ConsolidatedStatementsOfCashFlows','ifrs-full':'CashFlowsFromUsedInOperatingActivities') valueAssertion /* not loadable */
  total=CashFlowsFromUsedInOperations_5*1+(InterestReceivedClassifiedAsOperatingActivities_4*1+(DividendsReceivedClassifiedAsOperatingActivities_3*1+(InterestPaidClassifiedAsOperatingActivities_2* -1+IncomeTaxesPaidClassifiedAsOperatingActivities_1* -1)))
  variables
  total: [concept('ifrs-full':'CashFlowsFromUsedInOperatingActivities')],
  CashFlowsFromUsedInOperations_5: [concept('ifrs-full':'CashFlowsFromUsedInOperations')],
  InterestReceivedClassifiedAsOperatingActivities_4: [concept('ifrs-full':'InterestReceivedClassifiedAsOperatingActivities')],
  DividendsReceivedClassifiedAsOperatingActivities_3: [concept('ifrs-full':'DividendsReceivedClassifiedAsOperatingActivities')],
  InterestPaidClassifiedAsOperatingActivities_2: [concept('ifrs-full':'InterestPaidClassifiedAsOperatingActivities')],
  IncomeTaxesPaidClassifiedAsOperatingActivities_1: [concept('ifrs-full':'IncomeTaxesPaidClassifiedAsOperatingActivities')].
calculationifrs-full:CashFlowsFromUsedInOperations (in ConsolidatedStatementsOfCashFlows)
  • derived:0
  • ok:3
  • failed:0
 total=ProfitLossBeforeTax_3*1+(IncreaseDecreaseInWorkingCapital_2* -1+AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital_1*1)
calculation('http://auo.com/role/ConsolidatedStatementsOfCashFlows','ifrs-full':'CashFlowsFromUsedInOperations') valueAssertion /* not loadable */
  total=ProfitLossBeforeTax_3*1+(IncreaseDecreaseInWorkingCapital_2* -1+AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital_1*1)
  variables
  total: [concept('ifrs-full':'CashFlowsFromUsedInOperations')],
  ProfitLossBeforeTax_3: [concept('ifrs-full':'ProfitLossBeforeTax')],
  IncreaseDecreaseInWorkingCapital_2: [concept('ifrs-full':'IncreaseDecreaseInWorkingCapital')],
  AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital_1: [concept('ifrs-full':'AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital')].
calculationifrs-full:IncreaseDecreaseInCashAndCashEquivalents (in ConsolidatedStatementsOfCashFlows)
  • derived:0
  • ok:3
  • failed:0
 total=CashFlowsFromUsedInOperatingActivities_4*1+(CashFlowsFromUsedInFinancingActivities_3*1+(EffectOfExchangeRateChangesOnCashAndCashEquivalents_2*1+CashFlowsFromUsedInInvestingActivities_1*1))
calculation('http://auo.com/role/ConsolidatedStatementsOfCashFlows','ifrs-full':'IncreaseDecreaseInCashAndCashEquivalents') valueAssertion /* not loadable */
  total=CashFlowsFromUsedInOperatingActivities_4*1+(CashFlowsFromUsedInFinancingActivities_3*1+(EffectOfExchangeRateChangesOnCashAndCashEquivalents_2*1+CashFlowsFromUsedInInvestingActivities_1*1))
  variables
  total: [concept('ifrs-full':'IncreaseDecreaseInCashAndCashEquivalents')],
  CashFlowsFromUsedInOperatingActivities_4: [concept('ifrs-full':'CashFlowsFromUsedInOperatingActivities')],
  CashFlowsFromUsedInFinancingActivities_3: [concept('ifrs-full':'CashFlowsFromUsedInFinancingActivities')],
  EffectOfExchangeRateChangesOnCashAndCashEquivalents_2: [concept('ifrs-full':'EffectOfExchangeRateChangesOnCashAndCashEquivalents')],
  CashFlowsFromUsedInInvestingActivities_1: [concept('ifrs-full':'CashFlowsFromUsedInInvestingActivities')].
calculationifrs-full:IncreaseDecreaseInWorkingCapital (in ConsolidatedStatementsOfCashFlows)
  • derived:0
  • ok:3
  • failed:0
 total=AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_9* -1+(AdjustmentsForDecreaseIncreaseInReceivablesFromRelatedParties_8* -1+(AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories_7* -1+(AdjustmentsForDecreaseIncreaseInOtherCurrentAssets_6* -1+(AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables_5* -1+(AdjustmentsForDecreaseIncreaseInPayableToRelatedParties_4* -1+(AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_3* -1+(AdjustmentsForIncreaseInOtherProvisionsArisingFromPassageOfTime_2* -1+AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities_1* -1)))))))
calculation('http://auo.com/role/ConsolidatedStatementsOfCashFlows','ifrs-full':'IncreaseDecreaseInWorkingCapital') valueAssertion /* not loadable */
  total=AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_9* -1+(AdjustmentsForDecreaseIncreaseInReceivablesFromRelatedParties_8* -1+(AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories_7* -1+(AdjustmentsForDecreaseIncreaseInOtherCurrentAssets_6* -1+(AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables_5* -1+(AdjustmentsForDecreaseIncreaseInPayableToRelatedParties_4* -1+(AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_3* -1+(AdjustmentsForIncreaseInOtherProvisionsArisingFromPassageOfTime_2* -1+AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities_1* -1)))))))
  variables
  total: [concept('ifrs-full':'IncreaseDecreaseInWorkingCapital')],
  AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_9: [concept('ifrs-full':'AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables')],
  AdjustmentsForDecreaseIncreaseInReceivablesFromRelatedParties_8: [concept(auo:'AdjustmentsForDecreaseIncreaseInReceivablesFromRelatedParties')],
  AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories_7: [concept('ifrs-full':'AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories')],
  AdjustmentsForDecreaseIncreaseInOtherCurrentAssets_6: [concept('ifrs-full':'AdjustmentsForDecreaseIncreaseInOtherCurrentAssets')],
  AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables_5: [concept('ifrs-full':'AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables')],
  AdjustmentsForDecreaseIncreaseInPayableToRelatedParties_4: [concept(auo:'AdjustmentsForDecreaseIncreaseInPayableToRelatedParties')],
  AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_3: [concept('ifrs-full':'AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities')],
  AdjustmentsForIncreaseInOtherProvisionsArisingFromPassageOfTime_2: [concept('ifrs-full':'AdjustmentsForIncreaseInOtherProvisionsArisingFromPassageOfTime')],
  AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities_1: [concept('ifrs-full':'AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities')].
calculationifrs-full:ComprehensiveIncome (in ConsolidatedStatementsOfComprehensiveIncome)
  • derived:0
  • ok:51
  • failed:0
 total=ProfitLoss_2*1+OtherComprehensiveIncome_1*1
calculation('http://auo.com/role/ConsolidatedStatementsOfComprehensiveIncome','ifrs-full':'ComprehensiveIncome') valueAssertion /* not loadable */
  total=ProfitLoss_2*1+OtherComprehensiveIncome_1*1
  variables
  total: [concept('ifrs-full':'ComprehensiveIncome')],
  ProfitLoss_2: [concept('ifrs-full':'ProfitLoss')],
  OtherComprehensiveIncome_1: [concept('ifrs-full':'OtherComprehensiveIncome')].
calculationifrs-full:GrossProfit (in ConsolidatedStatementsOfComprehensiveIncome)
  • derived:0
  • ok:3
  • failed:0
 total=Revenue_2*1+CostOfSales_1* -1
calculation('http://auo.com/role/ConsolidatedStatementsOfComprehensiveIncome','ifrs-full':'GrossProfit') valueAssertion /* not loadable */
  total=Revenue_2*1+CostOfSales_1* -1
  variables
  total: [concept('ifrs-full':'GrossProfit')],
  Revenue_2: [concept('ifrs-full':'Revenue')],
  CostOfSales_1: [concept('ifrs-full':'CostOfSales')].
calculationifrs-full:OtherComprehensiveIncome (in ConsolidatedStatementsOfComprehensiveIncome)
  • derived:0
  • ok:3
  • failed:0
 total=OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_2*1+OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_1*1
calculation('http://auo.com/role/ConsolidatedStatementsOfComprehensiveIncome','ifrs-full':'OtherComprehensiveIncome') valueAssertion /* not loadable */
  total=OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_2*1+OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_1*1
  variables
  total: [concept('ifrs-full':'OtherComprehensiveIncome')],
  OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_2: [concept('ifrs-full':'OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax')],
  OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_1: [concept('ifrs-full':'OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax')].
calculationifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax (in ConsolidatedStatementsOfComprehensiveIncome)
  • derived:0
  • ok:3
  • failed:0
 total=OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_5*1+(OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets_4*1+(OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations_3*1+(ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax_2*1+IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss_1* -1)))
calculation('http://auo.com/role/ConsolidatedStatementsOfComprehensiveIncome','ifrs-full':'OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax') valueAssertion /* not loadable */
  total=OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_5*1+(OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets_4*1+(OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations_3*1+(ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax_2*1+IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss_1* -1)))
  variables
  total: [concept('ifrs-full':'OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax')],
  OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_5: [concept('ifrs-full':'OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation')],
  OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets_4: [concept('ifrs-full':'OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets')],
  OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations_3: [concept('ifrs-full':'OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations')],
  ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax_2: [concept('ifrs-full':'ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax')],
  IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss_1: [concept('ifrs-full':'IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss')].
calculationifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax (in ConsolidatedStatementsOfComprehensiveIncome)
  • derived:0
  • ok:3
  • failed:0
 total=OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_3*1+(ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_2*1+IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss_1* -1)
calculation('http://auo.com/role/ConsolidatedStatementsOfComprehensiveIncome','ifrs-full':'OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax') valueAssertion /* not loadable */
  total=OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_3*1+(ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_2*1+IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss_1* -1)
  variables
  total: [concept('ifrs-full':'OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax')],
  OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_3: [concept('ifrs-full':'OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans')],
  ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_2: [concept('ifrs-full':'ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax')],
  IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss_1: [concept('ifrs-full':'IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss')].
calculationifrs-full:ProfitLoss (in ConsolidatedStatementsOfComprehensiveIncome)
  • derived:0
  • ok:3
  • failed:0
 total=ProfitLossBeforeTax_2*1+IncomeTaxExpenseContinuingOperations_1* -1
calculation('http://auo.com/role/ConsolidatedStatementsOfComprehensiveIncome','ifrs-full':'ProfitLoss') valueAssertion /* not loadable */
  total=ProfitLossBeforeTax_2*1+IncomeTaxExpenseContinuingOperations_1* -1
  variables
  total: [concept('ifrs-full':'ProfitLoss')],
  ProfitLossBeforeTax_2: [concept('ifrs-full':'ProfitLossBeforeTax')],
  IncomeTaxExpenseContinuingOperations_1: [concept('ifrs-full':'IncomeTaxExpenseContinuingOperations')].
calculationifrs-full:ProfitLossBeforeTax (in ConsolidatedStatementsOfComprehensiveIncome)
  • derived:0
  • ok:3
  • failed:0
 total=GrossProfit_8*1+(DistributionAndAdministrativeExpense_7* -1+(SellingGeneralAndAdministrativeExpense_6* -1+(ResearchAndDevelopmentExpense_5* -1+(OtherIncome_4*1+(OtherGainsLosses_3*1+(FinanceCosts_2* -1+ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_1*1))))))
calculation('http://auo.com/role/ConsolidatedStatementsOfComprehensiveIncome','ifrs-full':'ProfitLossBeforeTax') valueAssertion /* not loadable */
  total=GrossProfit_8*1+(DistributionAndAdministrativeExpense_7* -1+(SellingGeneralAndAdministrativeExpense_6* -1+(ResearchAndDevelopmentExpense_5* -1+(OtherIncome_4*1+(OtherGainsLosses_3*1+(FinanceCosts_2* -1+ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_1*1))))))
  variables
  total: [concept('ifrs-full':'ProfitLossBeforeTax')],
  GrossProfit_8: [concept('ifrs-full':'GrossProfit')],
  DistributionAndAdministrativeExpense_7: [concept('ifrs-full':'DistributionAndAdministrativeExpense')],
  SellingGeneralAndAdministrativeExpense_6: [concept('ifrs-full':'SellingGeneralAndAdministrativeExpense')],
  ResearchAndDevelopmentExpense_5: [concept('ifrs-full':'ResearchAndDevelopmentExpense')],
  OtherIncome_4: [concept('ifrs-full':'OtherIncome')],
  OtherGainsLosses_3: [concept('ifrs-full':'OtherGainsLosses')],
  FinanceCosts_2: [concept('ifrs-full':'FinanceCosts')],
  ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_1: [concept('ifrs-full':'ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod')].
calculationifrs-full:Assets (in ConsolidatedStatementsOfFinancialPosition)
  • derived:0
  • ok:2
  • failed:0
 total=CurrentAssets_2*1+NoncurrentAssets_1*1
calculation('http://auo.com/role/ConsolidatedStatementsOfFinancialPosition','ifrs-full':'Assets') valueAssertion /* not loadable */
  total=CurrentAssets_2*1+NoncurrentAssets_1*1
  variables
  total: [concept('ifrs-full':'Assets')],
  CurrentAssets_2: [concept('ifrs-full':'CurrentAssets')],
  NoncurrentAssets_1: [concept('ifrs-full':'NoncurrentAssets')].
calculationifrs-full:CurrentAssets (in ConsolidatedStatementsOfFinancialPosition)
  • derived:0
  • ok:2
  • failed:0
 total=CashAndCashEquivalents_10*1+(CurrentFinancialAssetsAtFairValueThroughProfitOrLoss_9*1+(CurrentTradeReceivables_8*1+(CurrentAccountsReceivablesDueFromRelatedParties_7*1+(TradeAndOtherReceivablesDueFromRelatedParties_6*1+(CurrentTaxAssetsCurrent_5*1+(Inventories_4*1+(OtherCurrentFinancialAssets_3*1+(NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_2*1+OtherCurrentAssets_1*1))))))))
calculation('http://auo.com/role/ConsolidatedStatementsOfFinancialPosition','ifrs-full':'CurrentAssets') valueAssertion /* not loadable */
  total=CashAndCashEquivalents_10*1+(CurrentFinancialAssetsAtFairValueThroughProfitOrLoss_9*1+(CurrentTradeReceivables_8*1+(CurrentAccountsReceivablesDueFromRelatedParties_7*1+(TradeAndOtherReceivablesDueFromRelatedParties_6*1+(CurrentTaxAssetsCurrent_5*1+(Inventories_4*1+(OtherCurrentFinancialAssets_3*1+(NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_2*1+OtherCurrentAssets_1*1))))))))
  variables
  total: [concept('ifrs-full':'CurrentAssets')],
  CashAndCashEquivalents_10: [concept('ifrs-full':'CashAndCashEquivalents')],
  CurrentFinancialAssetsAtFairValueThroughProfitOrLoss_9: [concept('ifrs-full':'CurrentFinancialAssetsAtFairValueThroughProfitOrLoss')],
  CurrentTradeReceivables_8: [concept('ifrs-full':'CurrentTradeReceivables')],
  CurrentAccountsReceivablesDueFromRelatedParties_7: [concept(auo:'CurrentAccountsReceivablesDueFromRelatedParties')],
  TradeAndOtherReceivablesDueFromRelatedParties_6: [concept('ifrs-full':'TradeAndOtherReceivablesDueFromRelatedParties')],
  CurrentTaxAssetsCurrent_5: [concept('ifrs-full':'CurrentTaxAssetsCurrent')],
  Inventories_4: [concept('ifrs-full':'Inventories')],
  OtherCurrentFinancialAssets_3: [concept('ifrs-full':'OtherCurrentFinancialAssets')],
  NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_2: [concept('ifrs-full':'NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale')],
  OtherCurrentAssets_1: [concept('ifrs-full':'OtherCurrentAssets')].
calculationifrs-full:CurrentLiabilities (in ConsolidatedStatementsOfFinancialPosition)
  • derived:0
  • ok:2
  • failed:0
 total=ShorttermBorrowings_11*1+(CurrentPortionOfLongtermBorrowings_10*1+(CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss_9*1+(CurrentDerivativeFinancialLiabilities_8*1+(TradeAndOtherCurrentPayablesToTradeSuppliers_7*1+(TradeAndOtherCurrentPayablesToRelatedParties_6*1+(OtherCurrentPayables_5*1+(TradeAndOtherPayablesToRelatedParties_4*1+(CurrentTaxLiabilitiesCurrent_3*1+(CurrentProvisions_2*1+OtherCurrentLiabilities_1*1)))))))))
calculation('http://auo.com/role/ConsolidatedStatementsOfFinancialPosition','ifrs-full':'CurrentLiabilities') valueAssertion /* not loadable */
  total=ShorttermBorrowings_11*1+(CurrentPortionOfLongtermBorrowings_10*1+(CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss_9*1+(CurrentDerivativeFinancialLiabilities_8*1+(TradeAndOtherCurrentPayablesToTradeSuppliers_7*1+(TradeAndOtherCurrentPayablesToRelatedParties_6*1+(OtherCurrentPayables_5*1+(TradeAndOtherPayablesToRelatedParties_4*1+(CurrentTaxLiabilitiesCurrent_3*1+(CurrentProvisions_2*1+OtherCurrentLiabilities_1*1)))))))))
  variables
  total: [concept('ifrs-full':'CurrentLiabilities')],
  ShorttermBorrowings_11: [concept('ifrs-full':'ShorttermBorrowings')],
  CurrentPortionOfLongtermBorrowings_10: [concept('ifrs-full':'CurrentPortionOfLongtermBorrowings')],
  CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss_9: [concept('ifrs-full':'CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss')],
  CurrentDerivativeFinancialLiabilities_8: [concept('ifrs-full':'CurrentDerivativeFinancialLiabilities')],
  TradeAndOtherCurrentPayablesToTradeSuppliers_7: [concept('ifrs-full':'TradeAndOtherCurrentPayablesToTradeSuppliers')],
  TradeAndOtherCurrentPayablesToRelatedParties_6: [concept('ifrs-full':'TradeAndOtherCurrentPayablesToRelatedParties')],
  OtherCurrentPayables_5: [concept('ifrs-full':'OtherCurrentPayables')],
  TradeAndOtherPayablesToRelatedParties_4: [concept('ifrs-full':'TradeAndOtherPayablesToRelatedParties')],
  CurrentTaxLiabilitiesCurrent_3: [concept('ifrs-full':'CurrentTaxLiabilitiesCurrent')],
  CurrentProvisions_2: [concept('ifrs-full':'CurrentProvisions')],
  OtherCurrentLiabilities_1: [concept('ifrs-full':'OtherCurrentLiabilities')].
calculationifrs-full:Equity (in ConsolidatedStatementsOfFinancialPosition)
  • derived:0
  • ok:2
  • failed:0
 total=EquityAttributableToOwnersOfParent_2*1+NoncontrollingInterests_1*1
calculation('http://auo.com/role/ConsolidatedStatementsOfFinancialPosition','ifrs-full':'Equity') valueAssertion /* not loadable */
  total=EquityAttributableToOwnersOfParent_2*1+NoncontrollingInterests_1*1
  variables
  total: [concept('ifrs-full':'Equity')],
  EquityAttributableToOwnersOfParent_2: [concept('ifrs-full':'EquityAttributableToOwnersOfParent')],
  NoncontrollingInterests_1: [concept('ifrs-full':'NoncontrollingInterests')].
calculationifrs-full:EquityAndLiabilities (in ConsolidatedStatementsOfFinancialPosition)
  • derived:0
  • ok:2
  • failed:0
 total=Liabilities_2*1+Equity_1*1
calculation('http://auo.com/role/ConsolidatedStatementsOfFinancialPosition','ifrs-full':'EquityAndLiabilities') valueAssertion /* not loadable */
  total=Liabilities_2*1+Equity_1*1
  variables
  total: [concept('ifrs-full':'EquityAndLiabilities')],
  Liabilities_2: [concept('ifrs-full':'Liabilities')],
  Equity_1: [concept('ifrs-full':'Equity')].
calculationifrs-full:EquityAttributableToOwnersOfParent (in ConsolidatedStatementsOfFinancialPosition)
  • derived:0
  • ok:2
  • failed:0
 total=IssuedCapital_4*1+(CapitalReserve_3*1+(RetainedEarnings_2*1+OtherEquityInterest_1*1))
calculation('http://auo.com/role/ConsolidatedStatementsOfFinancialPosition','ifrs-full':'EquityAttributableToOwnersOfParent') valueAssertion /* not loadable */
  total=IssuedCapital_4*1+(CapitalReserve_3*1+(RetainedEarnings_2*1+OtherEquityInterest_1*1))
  variables
  total: [concept('ifrs-full':'EquityAttributableToOwnersOfParent')],
  IssuedCapital_4: [concept('ifrs-full':'IssuedCapital')],
  CapitalReserve_3: [concept('ifrs-full':'CapitalReserve')],
  RetainedEarnings_2: [concept('ifrs-full':'RetainedEarnings')],
  OtherEquityInterest_1: [concept('ifrs-full':'OtherEquityInterest')].
calculationifrs-full:Liabilities (in ConsolidatedStatementsOfFinancialPosition)
  • derived:0
  • ok:2
  • failed:0
 total=NoncurrentLiabilities_2*1+CurrentLiabilities_1*1
calculation('http://auo.com/role/ConsolidatedStatementsOfFinancialPosition','ifrs-full':'Liabilities') valueAssertion /* not loadable */
  total=NoncurrentLiabilities_2*1+CurrentLiabilities_1*1
  variables
  total: [concept('ifrs-full':'Liabilities')],
  NoncurrentLiabilities_2: [concept('ifrs-full':'NoncurrentLiabilities')],
  CurrentLiabilities_1: [concept('ifrs-full':'CurrentLiabilities')].
calculationifrs-full:NoncurrentAssets (in ConsolidatedStatementsOfFinancialPosition)
  • derived:0
  • ok:2
  • failed:0
 total=NoncurrentFinancialAssetsAvailableforsale_7*1+(InvestmentAccountedForUsingEquityMethod_6*1+(PropertyPlantAndEquipment_5*1+(InvestmentProperty_4*1+(IntangibleAssetsOtherThanGoodwill_3*1+(DeferredTaxAssets_2*1+OtherNoncurrentAssets_1*1)))))
calculation('http://auo.com/role/ConsolidatedStatementsOfFinancialPosition','ifrs-full':'NoncurrentAssets') valueAssertion /* not loadable */
  total=NoncurrentFinancialAssetsAvailableforsale_7*1+(InvestmentAccountedForUsingEquityMethod_6*1+(PropertyPlantAndEquipment_5*1+(InvestmentProperty_4*1+(IntangibleAssetsOtherThanGoodwill_3*1+(DeferredTaxAssets_2*1+OtherNoncurrentAssets_1*1)))))
  variables
  total: [concept('ifrs-full':'NoncurrentAssets')],
  NoncurrentFinancialAssetsAvailableforsale_7: [concept('ifrs-full':'NoncurrentFinancialAssetsAvailableforsale')],
  InvestmentAccountedForUsingEquityMethod_6: [concept('ifrs-full':'InvestmentAccountedForUsingEquityMethod')],
  PropertyPlantAndEquipment_5: [concept('ifrs-full':'PropertyPlantAndEquipment')],
  InvestmentProperty_4: [concept('ifrs-full':'InvestmentProperty')],
  IntangibleAssetsOtherThanGoodwill_3: [concept('ifrs-full':'IntangibleAssetsOtherThanGoodwill')],
  DeferredTaxAssets_2: [concept('ifrs-full':'DeferredTaxAssets')],
  OtherNoncurrentAssets_1: [concept('ifrs-full':'OtherNoncurrentAssets')].
calculationifrs-full:NoncurrentLiabilities (in ConsolidatedStatementsOfFinancialPosition)
  • derived:0
  • ok:2
  • failed:0
 total=LongtermBorrowings_4*1+(NoncurrentProvisions_3*1+(DeferredTaxLiabilities_2*1+OtherNoncurrentLiabilities_1*1))
calculation('http://auo.com/role/ConsolidatedStatementsOfFinancialPosition','ifrs-full':'NoncurrentLiabilities') valueAssertion /* not loadable */
  total=LongtermBorrowings_4*1+(NoncurrentProvisions_3*1+(DeferredTaxLiabilities_2*1+OtherNoncurrentLiabilities_1*1))
  variables
  total: [concept('ifrs-full':'NoncurrentLiabilities')],
  LongtermBorrowings_4: [concept('ifrs-full':'LongtermBorrowings')],
  NoncurrentProvisions_3: [concept('ifrs-full':'NoncurrentProvisions')],
  DeferredTaxLiabilities_2: [concept('ifrs-full':'DeferredTaxLiabilities')],
  OtherNoncurrentLiabilities_1: [concept('ifrs-full':'OtherNoncurrentLiabilities')].
calculationauo:NetAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed (in DisposalOfSubsidiariesDetails)
  • derived:0
  • ok:1
  • failed:0
 total=CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013_8*1+(AccountsReceivableAndOtherReceivablesInSubsidiaryOrBusinessesAcquiredOrDisposed_7*1+(OtherCurrentAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed_6*1+(PropertyPlantAndEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed_5*1+(OtherAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed_4*1+(PayableForEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed_3* -1+(AccruedExpenseAndOtherCurrentLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposed_2* -1+LongtermBorrowingsInSubsidiaryOrBusinessesAcquiredOrDisposed_1* -1))))))
calculation('http://auo.com/role/DisposalOfSubsidiariesDetails',auo:'NetAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed') valueAssertion /* not loadable */
  total=CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013_8*1+(AccountsReceivableAndOtherReceivablesInSubsidiaryOrBusinessesAcquiredOrDisposed_7*1+(OtherCurrentAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed_6*1+(PropertyPlantAndEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed_5*1+(OtherAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed_4*1+(PayableForEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed_3* -1+(AccruedExpenseAndOtherCurrentLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposed_2* -1+LongtermBorrowingsInSubsidiaryOrBusinessesAcquiredOrDisposed_1* -1))))))
  variables
  total: [concept(auo:'NetAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed')],
  CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013_8: [concept('ifrs-full':'CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013')],
  AccountsReceivableAndOtherReceivablesInSubsidiaryOrBusinessesAcquiredOrDisposed_7: [concept(auo:'AccountsReceivableAndOtherReceivablesInSubsidiaryOrBusinessesAcquiredOrDisposed')],
  OtherCurrentAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed_6: [concept(auo:'OtherCurrentAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed')],
  PropertyPlantAndEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed_5: [concept(auo:'PropertyPlantAndEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed')],
  OtherAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed_4: [concept(auo:'OtherAssetsInSubsidiaryOrBusinessesAcquiredOrDisposed')],
  PayableForEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed_3: [concept(auo:'PayableForEquipmentInSubsidiaryOrBusinessesAcquiredOrDisposed')],
  AccruedExpenseAndOtherCurrentLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposed_2: [concept(auo:'AccruedExpenseAndOtherCurrentLiabilitiesInSubsidiaryOrBusinessesAcquiredOrDisposed')],
  LongtermBorrowingsInSubsidiaryOrBusinessesAcquiredOrDisposed_1: [concept(auo:'LongtermBorrowingsInSubsidiaryOrBusinessesAcquiredOrDisposed')].
calculationifrs-full:AdjustedWeightedAverageShares (in EarningsPerShareDetails1)
  • derived:0
  • ok:3
  • failed:0
 total=WeightedAverageShares_3*1+(DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares_2*1+DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares_1*1)
calculation('http://auo.com/role/EarningsPerShareDetails1','ifrs-full':'AdjustedWeightedAverageShares') valueAssertion /* not loadable */
  total=WeightedAverageShares_3*1+(DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares_2*1+DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares_1*1)
  variables
  total: [concept('ifrs-full':'AdjustedWeightedAverageShares')],
  WeightedAverageShares_3: [concept('ifrs-full':'WeightedAverageShares')],
  DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares_2: [concept('ifrs-full':'DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares')],
  DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares_1: [concept('ifrs-full':'DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares')].
calculationifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects (in EarningsPerShareDetails1)
  • derived:0
  • ok:3
  • failed:0
 total=ProfitLossAttributableToOwnersOfParent_2*1+DilutiveEffectOfConvertibleBonds_1*1
calculation('http://auo.com/role/EarningsPerShareDetails1','ifrs-full':'ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects') valueAssertion /* not loadable */
  total=ProfitLossAttributableToOwnersOfParent_2*1+DilutiveEffectOfConvertibleBonds_1*1
  variables
  total: [concept('ifrs-full':'ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects')],
  ProfitLossAttributableToOwnersOfParent_2: [concept('ifrs-full':'ProfitLossAttributableToOwnersOfParent')],
  DilutiveEffectOfConvertibleBonds_1: [concept(auo:'DilutiveEffectOfConvertibleBonds')].
calculationifrs-full:LiabilityAssetOfDefinedBenefitPlans (in EmployeeBenefitsDetails)
  • derived:0
  • ok:2
  • failed:0
 total=DefinedBenefitObligationAtPresentValue_2*1+PlanAssetsAtFairValue_1* -1
calculation('http://auo.com/role/EmployeeBenefitsDetails','ifrs-full':'LiabilityAssetOfDefinedBenefitPlans') valueAssertion /* not loadable */
  total=DefinedBenefitObligationAtPresentValue_2*1+PlanAssetsAtFairValue_1* -1
  variables
  total: [concept('ifrs-full':'LiabilityAssetOfDefinedBenefitPlans')],
  DefinedBenefitObligationAtPresentValue_2: [concept('ifrs-full':'DefinedBenefitObligationAtPresentValue')],
  PlanAssetsAtFairValue_1: [concept('ifrs-full':'PlanAssetsAtFairValue')].
calculationauo:DefinedBenefitPlanIncludedInProfitLoss (in EmployeeBenefitsDetails1)
  • derived:0
  • ok:8
  • failed:0
 total=CurrentServiceCostNetDefinedBenefitLiabilityAsset_3*1+(InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_2*1+ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset_1* -1)
calculation('http://auo.com/role/EmployeeBenefitsDetails1',auo:'DefinedBenefitPlanIncludedInProfitLoss') valueAssertion /* not loadable */
  total=CurrentServiceCostNetDefinedBenefitLiabilityAsset_3*1+(InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_2*1+ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset_1* -1)
  variables
  total: [concept(auo:'DefinedBenefitPlanIncludedInProfitLoss')],
  CurrentServiceCostNetDefinedBenefitLiabilityAsset_3: [concept('ifrs-full':'CurrentServiceCostNetDefinedBenefitLiabilityAsset')],
  InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_2: [concept('ifrs-full':'InterestExpenseIncomeNetDefinedBenefitLiabilityAsset')],
  ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset_1: [concept('ifrs-full':'ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset')].
calculationifrs-full:IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset (in EmployeeBenefitsDetails1)
  • derived:0
  • ok:8
  • failed:0
 total=ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset_3* -1+(PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset_2* -1+IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_1*1)
calculation('http://auo.com/role/EmployeeBenefitsDetails1','ifrs-full':'IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset') valueAssertion /* not loadable */
  total=ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset_3* -1+(PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset_2* -1+IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_1*1)
  variables
  total: [concept('ifrs-full':'IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset')],
  ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset_3: [concept('ifrs-full':'ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset')],
  PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset_2: [concept('ifrs-full':'PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset')],
  IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_1: [concept('ifrs-full':'IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset')].
calculationifrs-full:FinanceCosts (in FinanceCostsDetails)
  • derived:0
  • ok:3
  • failed:0
 total=InterestExpenseOnBorrowings_2*1+InterestExpenseOnOtherFinancialLiabilities_1*1
calculation('http://auo.com/role/FinanceCostsDetails','ifrs-full':'FinanceCosts') valueAssertion /* not loadable */
  total=InterestExpenseOnBorrowings_2*1+InterestExpenseOnOtherFinancialLiabilities_1*1
  variables
  total: [concept('ifrs-full':'FinanceCosts')],
  InterestExpenseOnBorrowings_2: [concept('ifrs-full':'InterestExpenseOnBorrowings')],
  InterestExpenseOnOtherFinancialLiabilities_1: [concept('ifrs-full':'InterestExpenseOnOtherFinancialLiabilities')].
calculationifrs-full:AverageEffectiveTaxRate (in IncomeTaxesDetails2)
  • derived:0
  • ok:0
  • failed:3
 total=ApplicableTaxRate_10*1+(TaxRateEffectOfDifferentSubsidiariesIncomeTaxRate_9*1+(TaxRateEffectOfShareOfProfitEquityAccountedSubsidiaries_8* -1+(TaxRateEffectFromChangeInTaxRate_7*1+(TaxRateEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss_6*1+(TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_5*1+(TaxRateEffectOfLossGainFromDomesticLongTermInvestment_4*1+(TaxRateEffectOfUndistrbutedEarningsNet_3*1+(TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods_2*1+OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_1* -1))))))))
calculation('http://auo.com/role/IncomeTaxesDetails2','ifrs-full':'AverageEffectiveTaxRate') valueAssertion /* not loadable */
  total=ApplicableTaxRate_10*1+(TaxRateEffectOfDifferentSubsidiariesIncomeTaxRate_9*1+(TaxRateEffectOfShareOfProfitEquityAccountedSubsidiaries_8* -1+(TaxRateEffectFromChangeInTaxRate_7*1+(TaxRateEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss_6*1+(TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_5*1+(TaxRateEffectOfLossGainFromDomesticLongTermInvestment_4*1+(TaxRateEffectOfUndistrbutedEarningsNet_3*1+(TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods_2*1+OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_1* -1))))))))
  variables
  total: [concept('ifrs-full':'AverageEffectiveTaxRate')],
  ApplicableTaxRate_10: [concept('ifrs-full':'ApplicableTaxRate')],
  TaxRateEffectOfDifferentSubsidiariesIncomeTaxRate_9: [concept(auo:'TaxRateEffectOfDifferentSubsidiariesIncomeTaxRate')],
  TaxRateEffectOfShareOfProfitEquityAccountedSubsidiaries_8: [concept(auo:'TaxRateEffectOfShareOfProfitEquityAccountedSubsidiaries')],
  TaxRateEffectFromChangeInTaxRate_7: [concept('ifrs-full':'TaxRateEffectFromChangeInTaxRate')],
  TaxRateEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss_6: [concept(auo:'TaxRateEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss')],
  TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_5: [concept('ifrs-full':'TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss')],
  TaxRateEffectOfLossGainFromDomesticLongTermInvestment_4: [concept(auo:'TaxRateEffectOfLossGainFromDomesticLongTermInvestment')],
  TaxRateEffectOfUndistrbutedEarningsNet_3: [concept(auo:'TaxRateEffectOfUndistrbutedEarningsNet')],
  TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods_2: [concept('ifrs-full':'TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods')],
  OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_1: [concept('ifrs-full':'OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome')].
calculationifrs-full:IncomeTaxExpenseContinuingOperations (in IncomeTaxesDetails2)
  • derived:0
  • ok:3
  • failed:0
 total=TaxExpenseIncomeAtApplicableTaxRate_10*1+(TaxEffectOfDifferentSubsidiariesIncomeTaxRate_9*1+(TaxEffectOfShareOfProfitOfEquityAccountedSubsidiaries_8* -1+(TaxEffectFromChangeInTaxRate_7*1+(TaxEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss_6*1+(TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_5*1+(TaxEffectOfLossGainFromDomesticLongTermInvestment_4*1+(TaxEffectOfUndistributedEarningsNet_3*1+(TaxEffectOfAdjustmentsToPriorYear_2*1+OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_1*1))))))))
calculation('http://auo.com/role/IncomeTaxesDetails2','ifrs-full':'IncomeTaxExpenseContinuingOperations') valueAssertion /* not loadable */
  total=TaxExpenseIncomeAtApplicableTaxRate_10*1+(TaxEffectOfDifferentSubsidiariesIncomeTaxRate_9*1+(TaxEffectOfShareOfProfitOfEquityAccountedSubsidiaries_8* -1+(TaxEffectFromChangeInTaxRate_7*1+(TaxEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss_6*1+(TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_5*1+(TaxEffectOfLossGainFromDomesticLongTermInvestment_4*1+(TaxEffectOfUndistributedEarningsNet_3*1+(TaxEffectOfAdjustmentsToPriorYear_2*1+OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_1*1))))))))
  variables
  total: [concept('ifrs-full':'IncomeTaxExpenseContinuingOperations')],
  TaxExpenseIncomeAtApplicableTaxRate_10: [concept('ifrs-full':'TaxExpenseIncomeAtApplicableTaxRate')],
  TaxEffectOfDifferentSubsidiariesIncomeTaxRate_9: [concept(auo:'TaxEffectOfDifferentSubsidiariesIncomeTaxRate')],
  TaxEffectOfShareOfProfitOfEquityAccountedSubsidiaries_8: [concept(auo:'TaxEffectOfShareOfProfitOfEquityAccountedSubsidiaries')],
  TaxEffectFromChangeInTaxRate_7: [concept('ifrs-full':'TaxEffectFromChangeInTaxRate')],
  TaxEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss_6: [concept(auo:'TaxEffectOfChangeOfUnrecognizedDeductibleTemporaryDifferencesTaxLoss')],
  TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_5: [concept('ifrs-full':'TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss')],
  TaxEffectOfLossGainFromDomesticLongTermInvestment_4: [concept(auo:'TaxEffectOfLossGainFromDomesticLongTermInvestment')],
  TaxEffectOfUndistributedEarningsNet_3: [concept(auo:'TaxEffectOfUndistributedEarningsNet')],
  TaxEffectOfAdjustmentsToPriorYear_2: [concept(auo:'TaxEffectOfAdjustmentsToPriorYear')],
  OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_1: [concept('ifrs-full':'OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome')].
calculationifrs-full:DeferredTaxLiabilityAsset (in IncomeTaxesDetails3)
  • derived:0
  • ok:12
  • failed:0
 total=DeferredTaxLiabilityAssetRelatedToInvestmentsCredits_8*1+(DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards_7*1+(DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses_6*1+(DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown_5*1+(DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod_4*1+(DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans_3*1+(DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences_2*1+DeferredTaxLiabilityAssetRelatedToOthers_1*1))))))
calculation('http://auo.com/role/IncomeTaxesDetails3','ifrs-full':'DeferredTaxLiabilityAsset') valueAssertion /* not loadable */
  total=DeferredTaxLiabilityAssetRelatedToInvestmentsCredits_8*1+(DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards_7*1+(DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses_6*1+(DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown_5*1+(DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod_4*1+(DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans_3*1+(DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences_2*1+DeferredTaxLiabilityAssetRelatedToOthers_1*1))))))
  variables
  total: [concept('ifrs-full':'DeferredTaxLiabilityAsset')],
  DeferredTaxLiabilityAssetRelatedToInvestmentsCredits_8: [concept(auo:'DeferredTaxLiabilityAssetRelatedToInvestmentsCredits')],
  DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards_7: [concept(auo:'DeferredTaxLiabilityAssetRelatedToTaxLossCarryforwards')],
  DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses_6: [concept(auo:'DeferredTaxLiabilityAssetRelatedToUnrealizedLossAndExpenses')],
  DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown_5: [concept(auo:'DeferredTaxLiabilityAssetRelatedToInventoriesWriteDown')],
  DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod_4: [concept(auo:'DeferredTaxLiabilityAssetRelatedToForeignInvestmentsGainsUnderEquityMethod')],
  DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans_3: [concept(auo:'DeferredTaxLiabilityAssetRelatedToRemeasurementOfDefinedBenefitPlans')],
  DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences_2: [concept(auo:'DeferredTaxLiabilityAssetRelatedToForeignOperationsForeignCurrencyTranslationDifferences')],
  DeferredTaxLiabilityAssetRelatedToOthers_1: [concept(auo:'DeferredTaxLiabilityAssetRelatedToOthers')].
calculationauo:TotalUnrecognizedDeferredTaxAssets (in IncomeTaxesDetails5)
  • derived:0
  • ok:2
  • failed:0
 total=UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised_5*1+(GoodwillForWhichNoDeferredTaxAssetRecognised_4*1+(DifferenceInDepreciationExpenseForTaxAndFinancialPurposesForWhichNoDeferredTaxAssetRecognised_3*1+(InventoriesWriteDownForWhichNoDeferredTaxAssetRecognised_2*1+DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised_1*1)))
calculation('http://auo.com/role/IncomeTaxesDetails5',auo:'TotalUnrecognizedDeferredTaxAssets') valueAssertion /* not loadable */
  total=UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised_5*1+(GoodwillForWhichNoDeferredTaxAssetRecognised_4*1+(DifferenceInDepreciationExpenseForTaxAndFinancialPurposesForWhichNoDeferredTaxAssetRecognised_3*1+(InventoriesWriteDownForWhichNoDeferredTaxAssetRecognised_2*1+DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised_1*1)))
  variables
  total: [concept(auo:'TotalUnrecognizedDeferredTaxAssets')],
  UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised_5: [concept('ifrs-full':'UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised')],
  GoodwillForWhichNoDeferredTaxAssetRecognised_4: [concept(auo:'GoodwillForWhichNoDeferredTaxAssetRecognised')],
  DifferenceInDepreciationExpenseForTaxAndFinancialPurposesForWhichNoDeferredTaxAssetRecognised_3: [concept(auo:'DifferenceInDepreciationExpenseForTaxAndFinancialPurposesForWhichNoDeferredTaxAssetRecognised')],
  InventoriesWriteDownForWhichNoDeferredTaxAssetRecognised_2: [concept(auo:'InventoriesWriteDownForWhichNoDeferredTaxAssetRecognised')],
  DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised_1: [concept('ifrs-full':'DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised')].
calculationifrs-full:Inventories (in InventoriesDetails)
  • derived:0
  • ok:2
  • failed:0
 total=CurrentInventoriesHeldForSale_3*1+(WorkInProgress_2*1+CurrentMaterialsAndSuppliesToBeConsumedInProductionProcessOrRenderingServices_1*1)
calculation('http://auo.com/role/InventoriesDetails','ifrs-full':'Inventories') valueAssertion /* not loadable */
  total=CurrentInventoriesHeldForSale_3*1+(WorkInProgress_2*1+CurrentMaterialsAndSuppliesToBeConsumedInProductionProcessOrRenderingServices_1*1)
  variables
  total: [concept('ifrs-full':'Inventories')],
  CurrentInventoriesHeldForSale_3: [concept('ifrs-full':'CurrentInventoriesHeldForSale')],
  WorkInProgress_2: [concept('ifrs-full':'WorkInProgress')],
  CurrentMaterialsAndSuppliesToBeConsumedInProductionProcessOrRenderingServices_1: [concept('ifrs-full':'CurrentMaterialsAndSuppliesToBeConsumedInProductionProcessOrRenderingServices')].
calculationifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates (in InvestmentsInEquityaccountedInvesteesDetails)
  • derived:0
  • ok:2
  • failed:0
 total=InvestmentsInAssociates_2*1+InvestmentsInJointVentures_1*1
calculation('http://auo.com/role/InvestmentsInEquityaccountedInvesteesDetails','ifrs-full':'InvestmentsInSubsidiariesJointVenturesAndAssociates') valueAssertion /* not loadable */
  total=InvestmentsInAssociates_2*1+InvestmentsInJointVentures_1*1
  variables
  total: [concept('ifrs-full':'InvestmentsInSubsidiariesJointVenturesAndAssociates')],
  InvestmentsInAssociates_2: [concept('ifrs-full':'InvestmentsInAssociates')],
  InvestmentsInJointVentures_1: [concept('ifrs-full':'InvestmentsInJointVentures')].
calculationifrs-full:OtherGainsLosses (in OtherGainsAndLossesDetails)
  • derived:0
  • ok:3
  • failed:0
 total=GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_6*1+(GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss_5*1+(GainsLossesOnDisposalsOfInvestments_4*1+(GainsLossesOnDisposalsOfPropertyPlantAndEquipment_3*1+(ImpairmentLoss_2* -1+LossesOnLitigationSettlements_1* -1))))
calculation('http://auo.com/role/OtherGainsAndLossesDetails','ifrs-full':'OtherGainsLosses') valueAssertion /* not loadable */
  total=GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_6*1+(GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss_5*1+(GainsLossesOnDisposalsOfInvestments_4*1+(GainsLossesOnDisposalsOfPropertyPlantAndEquipment_3*1+(ImpairmentLoss_2* -1+LossesOnLitigationSettlements_1* -1))))
  variables
  total: [concept('ifrs-full':'OtherGainsLosses')],
  GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_6: [concept('ifrs-full':'GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss')],
  GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss_5: [concept('ifrs-full':'GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss')],
  GainsLossesOnDisposalsOfInvestments_4: [concept('ifrs-full':'GainsLossesOnDisposalsOfInvestments')],
  GainsLossesOnDisposalsOfPropertyPlantAndEquipment_3: [concept('ifrs-full':'GainsLossesOnDisposalsOfPropertyPlantAndEquipment')],
  ImpairmentLoss_2: [concept('ifrs-full':'ImpairmentLoss')],
  LossesOnLitigationSettlements_1: [concept('ifrs-full':'LossesOnLitigationSettlements')].
calculationifrs-full:Revenue (in RevenueDetails)
  • derived:0
  • ok:39
  • failed:0
 total=RevenueFromSaleOfGoods_2*1+OtherRevenue_1*1
calculation('http://auo.com/role/RevenueDetails','ifrs-full':'Revenue') valueAssertion /* not loadable */
  total=RevenueFromSaleOfGoods_2*1+OtherRevenue_1*1
  variables
  total: [concept('ifrs-full':'Revenue')],
  RevenueFromSaleOfGoods_2: [concept('ifrs-full':'RevenueFromSaleOfGoods')],
  OtherRevenue_1: [concept('ifrs-full':'OtherRevenue')].

Errors and Warnings

Other than rule related

NONE.


For more information: http://logicalcontracts.com/xbrl-and-sbrm-reporting/
DISCLAIMER: this analysis is provided by software still under development, and likely incomplete or even erroneous; do NOT use it other than for experimental, inconsequential purposes