SILICONWARE PRECISION INDUSTRIES CO LTD (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

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

*

*

http://www.spil.com.tw/taxonomy/role/DocumentandEntityInformation
2 Implied Table Table

*

*

implied:Table
3 Document - Document and Entity Information [Abstract] Abstract spil:DocumentandEntityInformationAbstract
4 Document Type Concept (Submission Type) For Period dei:DocumentType
5 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
6 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
7 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
8 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
9 Trading Symbol Concept (Text/String) For Period dei:TradingSymbol
10 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
11 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
12 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
13 Entity Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
14 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
15 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
16 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
17 1003 - Statement - Consolidated Balance Sheets Network

*

*

http://www.spil.com.tw/taxonomy/role/StatementOfFinancialPositionCurrentNonCurrent-210000
18 Implied Table Table

*

*

implied:Table
19 Statement of financial position [abstract] Abstract ifrs-full:StatementOfFinancialPositionAbstract
20 Current Assets Abstract ifrs-full:CurrentAssetsAbstract
21 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
22 Available-for-sale financial assets, current Concept (Monetary) As Of Debit ifrs-full:CurrentFinancialAssetsAvailableforsale
23 Notes receivable, net Concept (Monetary) As Of Debit spil:CurrentNotesReceivable
24 Accounts receivable, net Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
25 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
26 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
27 Non-current assets held for sale Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale
28 Other current assets - other Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
29 Current Assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
30 Non-current Assets Abstract ifrs-full:NoncurrentAssetsAbstract
31 Available-for-sale financial assets, non-current Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAvailableforsale
32 Investments accounted for using the equity method Concept (Monetary) As Of Debit ifrs-full:InvestmentAccountedForUsingEquityMethod
33 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
34 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
35 Deferred income tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
36 Other non-current assets - other Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
37 Non-current Assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
38 TOTAL ASSETS Concept (Monetary) As Of Debit ifrs-full:Assets
39 Current Liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
40 Short-term loans Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
41 Financial liability at fair value through profit or loss, current Concept (Monetary) As Of Credit ifrs-full:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss
42 Accounts payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
43 Other payables Concept (Monetary) As Of Credit ifrs-full:OtherCurrentPayables
44 Current income tax liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
45 Current portion of convertible bonds Concept (Monetary) As Of Credit ifrs-full:CurrentBondsIssuedAndCurrentPortionOfNoncurrentBondsIssued
46 Current portion of long-term loans Concept (Monetary) As Of Credit ifrs-full:CurrentLoansReceivedAndCurrentPortionOfNoncurrentLoansReceived
47 Other current liabilities - other Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
48 Current Liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
49 Non-current Liabilities Abstract ifrs-full:NoncurrentLiabilitiesAbstract
50 Convertible bonds Concept (Monetary) As Of Credit ifrs-full:NoncurrentPortionOfNoncurrentBondsIssued
51 Long-term loans Concept (Monetary) As Of Credit ifrs-full:NoncurrentPortionOfNoncurrentLoansReceived
52 Deferred income tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
53 Other non-current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
54 Non-current Liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
55 Total Liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
56 Shareholders' Equity Abstract ifrs-full:EquityAbstract
57 Capital stock Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
58 Capital reserve Concept (Monetary) As Of Credit ifrs-full:CapitalReserve
59 Retained earnings Abstract spil:RetainedEarningsAbstract
60 Legal reserve Concept (Monetary) As Of Credit ifrs-full:StatutoryReserve
61 Unappropriated earnings Concept (Monetary) As Of Credit spil:UnappropriatedEarnings
62 Accumulated other comprehensive income Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
63 Total Shareholders' Equity Concept (Monetary) As Of Credit ifrs-full:Equity
64 TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
65 1004 - Statement - Consolidated Statements of Comprehensive Income Network

*

*

http://www.spil.com.tw/taxonomy/role/StatementOfComprehensiveIncomeProfitOrLossByFunctionOfExpense-310000
66 Implied Table Table

*

*

implied:Table
67 Profit or loss [abstract] Abstract ifrs-full:IncomeStatementAbstract
68 Operating Revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
69 Operating Costs Concept (Monetary) For Period Debit ifrs-full:CostOfSales
70 Gross Profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
71 Operating Expenses Abstract ifrs-full:ExpenseByNatureAbstract
72 Selling expenses Concept (Monetary) For Period Debit ifrs-full:SalesAndMarketingExpense
73 General and administrative expenses Concept (Monetary) For Period Debit spil:GeneralAndAdministrativeExpenses
74 Research and development expenses Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
75 Operating Expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpenseExcludingCostOfSales
76 Other Income and Expenses Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
77 Operating Profit Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
78 Non-operating Income and Expenses Abstract spil:NonOperatingIncomeExpense1Abstract
79 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
80 Other gains and losses Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
81 Finance costs Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
82 Impairment loss of available-for-sale equity securities Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossOnFinancialAssets
83 Share of (losses) gains of associates and joint ventures accounted for using equity method Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
84 Dividends income Concept (Monetary) For Period Credit ifrs-full:RevenueFromDividends
85 Gains on disposal of investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfInvestments
86 (Losses)/ Gains on financial liabilities at fair value through profit or loss Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialLiabilitiesAtFairValueThroughProfitOrLoss
87 Non-operating Income and Expenses Concept (Monetary) For Period Credit spil:NonOperatingIncomeExpense1
88 Income before Income Tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
89 Income Tax Expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
90 Net Income Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
91 Other Comprehensive Income Abstract ifrs-full:OtherComprehensiveIncomeAbstract
92 Items that may be subsequently reclassified to profit or loss Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
93 Exchange difference on translation of foreign financial statements Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation
94 Unrealized gain (loss) on available-for-sale financial assets Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxAvailableforsaleFinancialAssets
95 Share of other comprehensive income (loss) of associates and joint ventures Concept (Monetary) For Period Credit ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax
96 Income tax relating to items that may be reclassified to profit or loss Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss
97 Items that may be subsequently reclassified to profit or loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
98 Items that will not be reclassified to profit or loss Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
99 Remeasurements of post-employment benefit obligations Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
100 Income tax relating to items that will not be reclassified to profit or loss Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss
101 Items that will not be reclassified to profit or loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax
102 Other Comprehensive Income (Loss) for the year, net of tax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
103 Total Comprehensive Income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
104 Net Income Attributable to: Abstract ifrs-full:ProfitLossAttributableToAbstract
105 Owners of the parent Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
106 Total Comprehensive Income Attributable to: Abstract ifrs-full:ComprehensiveIncomeAttributableToAbstract
107 Owners of the parent Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
108 Earnings Per Share (in New Taiwan dollars) Abstract ifrs-full:EarningsPerShareAbstract
109 Basic Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
110 Diluted Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
111 1005 - Statement - Consolidated Statements of Changes in Equity Network

*

*

http://www.spil.com.tw/taxonomy/role/StatementOfChangesInEquity-610000
112 Statement of changes in equity [table] Table

*

*

ifrs-full:StatementOfChangesInEquityTable
113 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
114 Equity [member] Member ifrs-full:EquityMember
115 Capital stock [member] Member ifrs-full:IssuedCapitalMember
116 Capital reserve [member] Member ifrs-full:CapitalReserveMember
117 Retained earnings [member] Member ifrs-full:RetainedEarningsMember
118 Other Comprehensive Income (Loss) [Member] Member us-gaap:OtherComprehensiveIncomeMember
119 Reserves within equity [axis] Axis ifrs-full:ReservesWithinEquityAxis
120 Other reserves [member] Member ifrs-full:OtherReservesMember
121 Retained earnings, legal reserve [member] Member ifrs-full:StatutoryReserveMember
122 Retained earnings, unappropriated earnings [member] Member spil:UnappropriatedEarningsMember
123 Other comprehensive income, unrealized gain on valuation of available-for-sale financial assets [member] Member ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember
124 Other comprehensive income, exchange difference on translation of foreign financial statements [member] Member ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember
125 Other comprehensive income, remeasurements of post-employment benefit obligations [member] Member ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlansMember
126 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
127 Beginning balance Concept (Monetary) As Of Credit ifrs-full:Equity
128 Appropriation of earnings for prior years: Abstract spil:AppropriationsOfPriorYearsEarningsAbstract
129 Legal reserve Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve
130 Cash dividends Concept (Monetary) For Period Debit ifrs-full:DividendsPaid
131 Changes in other capital reserve Concept (Monetary) For Period Credit ifrs-full:ChangesInOtherProvisions
132 Cash distribution from capital reserve Concept (Monetary) For Period Debit spil:CashDistributionsFromCapitalReserve
133 Subsidiary's share issue transaction costs Concept (Monetary) For Period Debit ifrs-full:ShareIssueRelatedCost
134 Net income Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
135 Other comprehensive income (loss) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
136 Total comprehensive income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
137 Ending balance Concept (Monetary) As Of Credit ifrs-full:Equity
138 1006 - Statement - Consolidated Statements of Cash Flows Network

*

*

http://www.spil.com.tw/taxonomy/role/StatementOfCashFlowsIndirectMethod-520000
139 Implied Table Table

*

*

implied:Table
140 Statement of cash flows [abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
141 Cash flows from operating activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
142 Consolidated income before tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
143 Adjustments to reconcile consolidated income before tax to net cash provided by operating activities: Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
144 Depreciation Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
145 Amortization Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForAmortisationExpense
146 Provision for bad debt expense Concept (Monetary) For Period Debit spil:ProvisionForBadDebtExpense
147 Losses/ (Gains) on financial liabilities at fair value through profit or loss Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialLiabilitiesAtFairValueThroughProfitOrLoss
148 Interest expense Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForInterestExpense
149 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
150 Dividend income Concept (Monetary) For Period Credit ifrs-full:RevenueFromDividends
151 Share of losses (gains) of associates and joint ventures accounted for using the equity method Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
152 Impairment loss of available-for-sale financial assets Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossOnFinancialAssets
153 Gains on reversal of impairment loss of non-financial assets Concept (Monetary) For Period Credit ifrs-full:ReversalOfImpairmentLoss
154 Gains on disposal of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
155 Gains on disposal of non-current assets held for sale Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfNoncurrentAssets
156 Gain on disposal of investment Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfInvestments
157 Impairment loss on property, plant and equipment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
158 Foreign currency exchange losses (gains) on convertible bonds payable Concept (Monetary) For Period Credit spil:AdjustmentsForForeignCurrencyExchangeGainLossOnConvertibleBondsPayable
159 Foreign currency exchange gains on long-term loans Concept (Monetary) For Period Credit spil:AdjustmentsForForeignCurrencyExchangeGainLossOnLongTermLoan
160 Premium from merger of available-for-sale financial assets Concept (Monetary) For Period Credit spil:AvailableForSaleFinancialAssetsOtherIncome
161 Changes in assets and liabilities related to the operation Abstract spil:IncreaseDecreaseInOperatingCapital1Abstract
162 Notes receivable Concept (Monetary) For Period Debit spil:AdjustmentsForDecreaseIncreaseInNotesReceivable
163 Accounts receivable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable
164 Other receivables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables
165 Inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
166 Other current assets-other Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherCurrentAssets
167 Other non-current assets-other Concept (Monetary) For Period Debit spil:AdjustmentsForDecreaseIncreaseInOtherNonCurrentAssets
168 Accounts payable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable
169 Other payables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherOperatingPayables
170 Other current liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities
171 Other non-current liabilities Concept (Monetary) For Period Debit spil:AdjustmentsForIncreaseDecreaseInOtherNoncurrentLiabilities
172 Cash provided by operations Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperations
173 Interest received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsOperatingActivities
174 Dividend received Concept (Monetary) For Period Debit ifrs-full:DividendsReceivedClassifiedAsOperatingActivities
175 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
176 Income tax paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities
177 Net cash provided by operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
178 Cash flows from investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
179 Proceeds from disposal of available-for-sale financial assets Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets
180 Proceeds from disposal of investments accounted for using the equity method Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod
181 Acquisition of investments accounted for using the equity method Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod
182 Proceeds from liquidation of available-for-sale financial assets Concept (Monetary) For Period Debit spil:ProceedsFromLiquidationOfAvailableForSaleFinancialAssetsClassifiedAsInvestingActivities
183 Proceeds from disposal of non-current assets held for sale Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations
184 Acquisition of property, plant, and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
185 Proceeds from disposal of property, plant, and equipment Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
186 Increase in refundable deposits Concept (Monetary) For Period Credit spil:IncreaseInRefundableDeposits
187 Decrease in refundable deposits Concept (Monetary) For Period Debit spil:DecreaseInRefundableDeposits
188 Acquisition of intangible assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
189 (Increase) decrease in pledged deposits Concept (Monetary) For Period Debit spil:IncreaseDecreaseInPledgedDeposits
190 Increase in other non-current assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities
191 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
192 Cash flows from financing activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
193 Increase in short-term loans Concept (Monetary) For Period Credit spil:IncreaseInShorttermLoans
194 Decrease in short-term loans Concept (Monetary) For Period Credit spil:DecreaseInShortTermLoans
195 Proceeds from long-term loans Concept (Monetary) For Period Debit ifrs-full:ProceedsFromNoncurrentBorrowings
196 Repayment of long-term loans Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfNoncurrentBorrowings
197 Payment for issuance of subsidiary's stock Concept (Monetary) For Period Credit ifrs-full:PaymentsForShareIssueCosts
198 Increase in deposit-in Concept (Monetary) For Period Debit spil:IncreaseInDepositinClassifiedAsFinancingActivities
199 Decrease in deposit-in Concept (Monetary) For Period Credit spil:DecreaseInDepositinClassifiedAsFinancingActivities
200 Payment for cash dividends and cash distribution from capital reserve Concept (Monetary) For Period Credit ifrs-full:DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities
201 Net cash used in financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
202 Effect on foreign currency exchange Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
203 Net decrease in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
204 Cash and cash equivalents at the beginning of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
205 Cash and cash equivalents at the end of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
206 1007 - Disclosure - History and Organization Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfGeneralInformationExplanatory
207 Implied Table Table

*

*

implied:Table
208 Text block1 [abstract] Abstract spil:TextBlock1Abstract
209 History and Organization Concept (Text Block (HTML)) For Period spil:DisclosureOfGeneralInformationExplanatory
210 1008 - Disclosure - The Date of Authorization for Issuance of the Consolidated Financial Statements and Procedures for Authorization Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfAuthorisationOfFinancialStatementsExplanatory
211 Implied Table Table

*

*

implied:Table
212 Text block1 [abstract] Abstract spil:TextBlock1Abstract
213 The Date of Authorization for Issuance of the Consolidated Financial Statements and Procedures for Authorization Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAuthorisationOfFinancialStatementsExplanatory
214 1009 - Disclosure - The Adoption of New and Amended Standards and Interpretations Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory
215 Implied Table Table

*

*

implied:Table
216 Text block1 [abstract] Abstract spil:TextBlock1Abstract
217 The Adoption of New and Amended Standards and Interpretations Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory
218 1010 - Disclosure - Summary of Significant Accounting Policies Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
219 Implied Table Table

*

*

implied:Table
220 Text block1 [abstract] Abstract spil:TextBlock1Abstract
221 Summary of Significant Accounting Policies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
222 1011 - Disclosure - Critical Accounting Estimates and Judgments Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfAccountingJudgementsAndEstimatesExplanatory
223 Implied Table Table

*

*

implied:Table
224 Text block1 [abstract] Abstract spil:TextBlock1Abstract
225 Critical Accounting Estimates and Judgments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
226 1012 - Disclosure - Cash and Cash Equivalents Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashAndCashEquivalentsExplanatory
227 Implied Table Table

*

*

implied:Table
228 Text block1 [abstract] Abstract spil:TextBlock1Abstract
229 Cash and Cash Equivalents Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
230 1013 - Disclosure - Accounts Receivable, Net Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfAccountsReceivablesNetExplanatory
231 Implied Table Table

*

*

implied:Table
232 Text block1 [abstract] Abstract spil:TextBlock1Abstract
233 Accounts Receivable, Net Concept (Text Block (HTML)) For Period spil:DisclosureOfAccountsReceivablesNetExplanatory
234 1014 - Disclosure - Inventories Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfInventoriesExplanatory
235 Implied Table Table

*

*

implied:Table
236 Text block1 [abstract] Abstract spil:TextBlock1Abstract
237 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInventoriesExplanatory
238 1015 - Disclosure - Non-current Assets Held for Sales Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfNoncurrentAssetsAndDisposalGroupsClassifiedAsHeldForSaleExplanatory
239 Implied Table Table

*

*

implied:Table
240 Text block1 [abstract] Abstract spil:TextBlock1Abstract
241 Non-current Assets Held for Sales Concept (Text Block (HTML)) For Period spil:DisclosureOfNoncurrentAssetsAndDisposalGroupsClassifiedAsHeldForSaleExplanatory
242 1016 - Disclosure - Available-for-sale Financial Assets Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfAvailableForSaleFinancialAssetsExplanatory
243 Implied Table Table

*

*

implied:Table
244 Text block1 [abstract] Abstract spil:TextBlock1Abstract
245 Available-for-sale Financial Assets Concept (Text Block (HTML)) For Period spil:DisclosureOfAvailableForSaleFinancialAssetsExplanatory
246 1017 - Disclosure - Investments Accounted for Using Equity Method Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory
247 Implied Table Table

*

*

implied:Table
248 Text block1 [abstract] Abstract spil:TextBlock1Abstract
249 Investments Accounted for Using Equity Method Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory
250 1018 - Disclosure - Financial Instruments by Category Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialInstrumentsExplanatory
251 Implied Table Table

*

*

implied:Table
252 Text block1 [abstract] Abstract spil:TextBlock1Abstract
253 Financial Instruments by Category Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsExplanatory
254 1019 - Disclosure - Property, Plant and Equipment Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatory
255 Implied Table Table

*

*

implied:Table
256 Text block1 [abstract] Abstract spil:TextBlock1Abstract
257 Property, Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
258 1020 - Disclosure - Intangible Assets Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfIntangibleAssetsExplanatory
259 Implied Table Table

*

*

implied:Table
260 Text block1 [abstract] Abstract spil:TextBlock1Abstract
261 Intangible Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsExplanatory
262 1021 - Disclosure - Financial Liabilities at Fair Value Through Profit or Loss Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory
263 Implied Table Table

*

*

implied:Table
264 Text block1 [abstract] Abstract spil:TextBlock1Abstract
265 Financial Liabilities at Fair Value Through Profit or Loss Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory
266 1022 - Disclosure - Other Payables Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherPayablesExplanatory
267 Implied Table Table

*

*

implied:Table
268 Text block1 [abstract] Abstract spil:TextBlock1Abstract
269 Other Payables Concept (Text Block (HTML)) For Period spil:DisclosureOfOtherPayablesExplanatory
270 1023 - Disclosure - Convertible Bonds Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfConvertibleBondsExplanatory
271 Implied Table Table

*

*

implied:Table
272 Text block1 [abstract] Abstract spil:TextBlock1Abstract
273 Convertible Bonds Concept (Text Block (HTML)) For Period spil:DisclosureOfConvertibleBondsExplanatory
274 1024 - Disclosure - Loans Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfDetailedInformationAboutBorrowingsExplanatory
275 Implied Table Table

*

*

implied:Table
276 Text block1 [abstract] Abstract spil:TextBlock1Abstract
277 Loans Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory
278 1025 - Disclosure - Post-employment Benefit Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfEmployeeBenefitsExplanatory
279 Implied Table Table

*

*

implied:Table
280 Text block1 [abstract] Abstract spil:TextBlock1Abstract
281 Post-employment Benefit Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEmployeeBenefitsExplanatory
282 1026 - Disclosure - Capital Stock Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfShareCapitalExplanatory
283 Implied Table Table

*

*

implied:Table
284 Text block1 [abstract] Abstract spil:TextBlock1Abstract
285 Capital Stock Concept (Text Block (HTML)) For Period spil:DisclosureOfShareCapitalExplanatory
286 1027 - Disclosure - Capital Reserve Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfCapitalAndReservesExplanatory
287 Implied Table Table

*

*

implied:Table
288 Text block1 [abstract] Abstract spil:TextBlock1Abstract
289 Capital Reserve Concept (Text Block (HTML)) For Period spil:DisclosureOfCapitalAndReservesExplanatory
290 1028 - Disclosure - Retained Earnings Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfRetainedEarningsExplanatory
291 Implied Table Table

*

*

implied:Table
292 Text block1 [abstract] Abstract spil:TextBlock1Abstract
293 Retained Earnings Concept (Text Block (HTML)) For Period spil:DisclosureOfRetainedEarningsExplanatory
294 1029 - Disclosure - Other Equity Items Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
295 Implied Table Table

*

*

implied:Table
296 Text block1 [abstract] Abstract spil:TextBlock1Abstract
297 Other Equity Items Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
298 1030 - Disclosure - Expenses by Nature Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfExpensesByNatureExplanatory
299 Implied Table Table

*

*

implied:Table
300 Text block1 [abstract] Abstract spil:TextBlock1Abstract
301 Expenses by Nature Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExpensesByNatureExplanatory
302 1031 - Disclosure - Other Income and Expenses Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherOperatingIncomeExpenseExplanatory
303 Implied Table Table

*

*

implied:Table
304 Text block1 [abstract] Abstract spil:TextBlock1Abstract
305 Other Income and Expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherOperatingIncomeExpenseExplanatory
306 1032 - Disclosure - Other Gains and Losses, Net Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherGainsAndLossesNetExplanatory
307 Implied Table Table

*

*

implied:Table
308 Text block1 [abstract] Abstract spil:TextBlock1Abstract
309 Other Gains and Losses, Net Concept (Text Block (HTML)) For Period spil:DisclosureOfOtherGainsAndLossesNetExplanatory
310 1033 - Disclosure - Income Tax Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatory
311 Implied Table Table

*

*

implied:Table
312 Text block1 [abstract] Abstract spil:TextBlock1Abstract
313 Income Tax Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
314 1034 - Disclosure - Earnings Per Share (EPS) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfEarningsPerShareExplanatory
315 Implied Table Table

*

*

implied:Table
316 Text block1 [abstract] Abstract spil:TextBlock1Abstract
317 Earnings Per Share (EPS) Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEarningsPerShareExplanatory
318 1035 - Disclosure - Supplemental Cash Flow Information Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfSupplementalCashFlowInformationExplanatory
319 Implied Table Table

*

*

implied:Table
320 Text block1 [abstract] Abstract spil:TextBlock1Abstract
321 Supplemental Cash Flow Information Concept (Text Block (HTML)) For Period spil:DisclosureOfSupplementalCashFlowInformationExplanatory
322 1036 - Disclosure - Operating Leases Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfLeasesExplanatory
323 Implied Table Table

*

*

implied:Table
324 Text block1 [abstract] Abstract spil:TextBlock1Abstract
325 Operating Leases Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfLeasesExplanatory
326 1037 - Disclosure - Related Party Transactions Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfRelatedPartyExplanatory
327 Implied Table Table

*

*

implied:Table
328 Text block1 [abstract] Abstract spil:TextBlock1Abstract
329 Related Party Transactions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
330 1038 - Disclosure - Assets Pledged as Collateral Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureAssetsPledgedAsCollateralExplanatory
331 Implied Table Table

*

*

implied:Table
332 Text block1 [abstract] Abstract spil:TextBlock1Abstract
333 Assets Pledged as Collateral Concept (Text Block (HTML)) For Period spil:DisclosureAssetsPledgedAsCollateralExplanatory
334 1039 - Disclosure - Commitments and Contingencies Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfCommitmentsAndContingentLiabilitiesExplanatory
335 Implied Table Table

*

*

implied:Table
336 Text block1 [abstract] Abstract spil:TextBlock1Abstract
337 Commitments and Contingencies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory
338 1040 - Disclosure - Significant Event After the Reporting Period Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfEventsAfterReportingPeriodExplanatory
339 Implied Table Table

*

*

implied:Table
340 Text block1 [abstract] Abstract spil:TextBlock1Abstract
341 Significant Event After the Reporting Period Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory
342 1041 - Disclosure - Financial Risk Management Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialRiskManagementExplanatory
343 Implied Table Table

*

*

implied:Table
344 Text block1 [abstract] Abstract spil:TextBlock1Abstract
345 Financial Risk Management Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialRiskManagementExplanatory
346 1042 - Disclosure - Capital Risk Management Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfCapitalRiskManagementExplanatory
347 Implied Table Table

*

*

implied:Table
348 Text block1 [abstract] Abstract spil:TextBlock1Abstract
349 Capital Risk Management Concept (Text Block (HTML)) For Period spil:DisclosureOfCapitalRiskManagementExplanatory
350 1043 - Disclosure - Fair Value Information on Financial Instruments Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfFairValueMeasurementExplanatory
351 Implied Table Table

*

*

implied:Table
352 Text block1 [abstract] Abstract spil:TextBlock1Abstract
353 Fair Value Information on Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueMeasurementExplanatory
354 1044 - Disclosure - Segment Information Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfEntitysReportableSegmentsExplanatory
355 Implied Table Table

*

*

implied:Table
356 Text block1 [abstract] Abstract spil:TextBlock1Abstract
357 Segment Information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory
358 1045 - Disclosure - Valuation and Qualifying Account Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfScheduleOfValuationAndQualifyingAccountsExplanatory
359 Implied Table Table

*

*

implied:Table
360 Text block1 [abstract] Abstract spil:TextBlock1Abstract
361 Valuation and Qualifying Account Concept (Text Block (HTML)) For Period spil:DisclosureOfScheduleOfValuationAndQualifyingAccountsExplanatory
362 1046 - Disclosure - Summary of Significant Accounting Policies (Policies) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatoryPolicies
363 Implied Table Table

*

*

implied:Table
364 Text block1 [abstract] Abstract spil:TextBlock1Abstract
365 Basis of Preparation Concept (Text Block (HTML)) For Period spil:DescriptionOfAccountingPolicyForBasisOfPreparationExplanatory
366 Principles of Consolidation Concept (Text Block (HTML)) For Period spil:DescriptionOfAccountingPolicyForPrinciplesOfConsolidationExplanatory
367 Segment Reporting Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSegmentReportingExplanatory
368 Foreign Currency Translation Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
369 Classification of Current and Noncurrent Assets / Liabilities Concept (Text Block (HTML)) For Period spil:DescriptionOfAccountingPolicyForClassificationOfCurrentAndNoncurrentAssetsAndLiabilitiesExplanatory
370 Cash and Cash Equivalents Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
371 Accounts Receivable Concept (Text Block (HTML)) For Period spil:DescriptionOfAccountingPolicyForAccountsReceivableExplanatory
372 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
373 Non-current Assets Held for Sale Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory
374 Financial Assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialAssetsExplanatory
375 Impairment of Financial Assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory
376 Equity Method Investments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForInvestmentInAssociatesAndJointVenturesExplanatory
377 Property, Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
378 Intangible Assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory
379 Impairment of Non-financial Assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory
380 Accounts Payable Concept (Text Block (HTML)) For Period spil:DescriptionOfAccountingPolicyForAccountsPayableExplanatory
381 Financial liabilities at fair value through profit or loss Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory
382 Convertible Bonds Concept (Text Block (HTML)) For Period spil:DescriptionOfAccountingPolicyForConvertibleBondsExplanatory
383 Borrowings Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBorrowingsExplanatory
384 Derecognition of financial liabilities Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory
385 Income Tax Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
386 Employee Benefits Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
387 Provision Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
388 Revenue Recognition Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
389 Lease Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory
390 1047 - Disclosure - The Adoption of New and Amended Standards and Interpretations (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatoryTables
391 Implied Table Table

*

*

implied:Table
392 Text block1 [abstract] Abstract spil:TextBlock1Abstract
393 Summary of Adoption of New and Amended Standards and Interpretations Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations
394 1048 - Disclosure - Summary of Significant Accounting Policies (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatoryTables
395 Implied Table Table

*

*

implied:Table
396 Text block1 [abstract] Abstract spil:TextBlock1Abstract
397 Summary of Consolidated Subsidiaries Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
398 Summary of Estimated Usefull Lives of Property Plant and Equipment Concept (Text Block (HTML)) For Period spil:DisclosureOfEstimatedUsefulLivesOfPropertyPlantAndEquipmentExplanatory
399 1049 - Disclosure - Cash and Cash Equivalents (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashAndCashEquivalentsExplanatoryTables
400 Implied Table Table

*

*

implied:Table
401 Text block1 [abstract] Abstract spil:TextBlock1Abstract
402 Summary of Cash and Cash Equivalents Concept (Text Block (HTML)) For Period spil:DisclosureOfDetailedInformationAboutCashAndCashEquivalentsExplanatory
403 1050 - Disclosure - Accounts Receivable, Net (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfAccountsReceivablesNetExplanatoryTables
404 Implied Table Table

*

*

implied:Table
405 Text block1 [abstract] Abstract spil:TextBlock1Abstract
406 Summary of Accounts Receivable Net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
407 Summary of Movements of Allowance for Doubtful Accounts Concept (Text Block (HTML)) For Period spil:DisclosureOfAllowanceForDoubtfulAccountsExplanatory
408 1051 - Disclosure - Inventories (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfInventoriesExplanatoryTables
409 Implied Table Table

*

*

implied:Table
410 Text block1 [abstract] Abstract spil:TextBlock1Abstract
411 Summary of Inventory Concept (Text Block (HTML)) For Period spil:DisclosureOfChangesInInventoriesExplanatory
412 Summary of Inventory Amounts Recognized in Profit or Loss Concept (Text Block (HTML)) For Period spil:DisclosureOfRecognizedInProfitLossOfInventory
413 1052 - Disclosure - Non-current Assets Held for Sales (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfNoncurrentAssetsAndDisposalGroupsClassifiedAsHeldForSaleExplanatoryTables
414 Implied Table Table

*

*

implied:Table
415 Text block1 [abstract] Abstract spil:TextBlock1Abstract
416 Summary of Non-current Assets Held for Sales Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory
417 1053 - Disclosure - Available-for-sale Financial Assets (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfAvailableForSaleFinancialAssetsExplanatoryTables
418 Implied Table Table

*

*

implied:Table
419 Text block1 [abstract] Abstract spil:TextBlock1Abstract
420 Summary of Available-for-sale Financial Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAvailableforsaleAssetsExplanatory
421 1054 - Disclosure - Investments Accounted for Using Equity Method (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatoryTables
422 Implied Table Table

*

*

implied:Table
423 Text block1 [abstract] Abstract spil:TextBlock1Abstract
424 Summary of Significant Investments in Associates Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesExplanatory
425 Summary of the Analysis of Other Comprehensive Income by Item Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory
426 1055 - Disclosure - Financial Instruments by Category (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialInstrumentsExplanatoryTables
427 Implied Table Table

*

*

implied:Table
428 Text block1 [abstract] Abstract spil:TextBlock1Abstract
429 Summary of Financial Instruments by Category Concept (Text Block (HTML)) For Period spil:DisclosureOfFinancialAssetsAndLiabilitiesExplanatory
430 1056 - Disclosure - Property, Plant and Equipment (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatoryTables
431 Implied Table Table

*

*

implied:Table
432 Text block1 [abstract] Abstract spil:TextBlock1Abstract
433 Summary of Property, Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
434 1057 - Disclosure - Intangible Assets (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfIntangibleAssetsExplanatoryTables
435 Implied Table Table

*

*

implied:Table
436 Text block1 [abstract] Abstract spil:TextBlock1Abstract
437 Summary of Intangible Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory
438 1058 - Disclosure - Financial Liabilities at Fair Value Through Profit or Loss (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatoryTables
439 Implied Table Table

*

*

implied:Table
440 Text block1 [abstract] Abstract spil:TextBlock1Abstract
441 Summary of Financial Liabilities at Fair Value through Profit or Loss Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory
442 1059 - Disclosure - Other Payables (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherPayablesExplanatoryTables
443 Implied Table Table

*

*

implied:Table
444 Text block1 [abstract] Abstract spil:TextBlock1Abstract
445 Schedule of Other Paybles Concept (Text Block (HTML)) For Period spil:DisclosureOfDetailedInformationAboutOtherPayablesExplanatory
446 1060 - Disclosure - Convertible Bonds (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfConvertibleBondsExplanatoryTables
447 Implied Table Table

*

*

implied:Table
448 Text block1 [abstract] Abstract spil:TextBlock1Abstract
449 Summary of convertible bonds Concept (Text Block (HTML)) For Period spil:DisclosureOfDetailedInformationAboutUnsecuredConvertibleBondsExplanatory
450 1061 - Disclosure - Loans (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfDetailedInformationAboutBorrowingsExplanatoryTables
451 Implied Table Table

*

*

implied:Table
452 Text block1 [abstract] Abstract spil:TextBlock1Abstract
453 Summary of Short-term Loans Concept (Text Block (HTML)) For Period spil:DisclosureOfShortTermBorrowingsExplanatory
454 Summary of Long-term Loans Concept (Text Block (HTML)) For Period spil:DisclosureOfLongTermBorrowingsExplanatory
455 1062 - Disclosure - Post-employment Benefit (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfEmployeeBenefitsExplanatoryTables
456 Implied Table Table

*

*

implied:Table
457 Text block1 [abstract] Abstract spil:TextBlock1Abstract
458 Summary of Amounts Arising from the Defined Benefit Obligation Recognized Concept (Text Block (HTML)) For Period spil:DisclosureOfDefinedBenefitPlansRecognizedInConsolidatedStatementsOfFinancialPositionExplanatory
459 Summary of Movements in Net Defined Benefit Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory
460 Summary of Constitution of Fair Value Of Plan Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfPlanAssetsExplanatory
461 Summary of Principal Actuarial Assumptions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory
462 Summary of Defined Benefit Obligation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAdditionalInformationAboutDefinedBenefitPlansExplanatory
463 Summary of Expected Maturity Analysis of Undiscounted Defined Benefit Obligation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationAboutMaturityProfileOfDefinedBenefitObligationExplanatory
464 1063 - Disclosure - Retained Earnings (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfRetainedEarningsExplanatoryTables
465 Implied Table Table

*

*

implied:Table
466 Text block1 [abstract] Abstract spil:TextBlock1Abstract
467 Summary of Distributions Concept (Text Block (HTML)) For Period spil:DisclosureOfDistributionOfEarningsExplanatory
468 1064 - Disclosure - Other Equity Items (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatoryTables
469 Implied Table Table

*

*

implied:Table
470 Text block1 [abstract] Abstract spil:TextBlock1Abstract
471 Summary of Other Equity Items Concept (Text Block (HTML)) For Period spil:DisclosureOfOtherReservesExplanatory
472 1065 - Disclosure - Expenses by Nature (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfExpensesByNatureExplanatoryTables
473 Implied Table Table

*

*

implied:Table
474 Text block1 [abstract] Abstract spil:TextBlock1Abstract
475 Summary of Employee Benefit Expenses Concept (Text Block (HTML)) For Period spil:DisclosureOfDetailsOfExpensesByNatureExplanatory
476 1066 - Disclosure - Other Income and Expenses (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherOperatingIncomeExpenseExplanatoryTables
477 Implied Table Table

*

*

implied:Table
478 Text block1 [abstract] Abstract spil:TextBlock1Abstract
479 Summary of Income and Expenses Concept (Text Block (HTML)) For Period spil:DisclosureOfDetailedInformationAboutOtherOperatingIncomeExpenseExplanatory
480 1067 - Disclosure - Other Gains and Losses, Net (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherGainsAndLossesNetExplanatoryTables
481 Implied Table Table

*

*

implied:Table
482 Text block1 [abstract] Abstract spil:TextBlock1Abstract
483 Schedule of Other Gains And Losses Net Concept (Text Block (HTML)) For Period spil:DisclosureOfDetailedInformationOtherGainsAndLossesExplanatory
484 1068 - Disclosure - Income Tax (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatoryTables
485 Implied Table Table

*

*

implied:Table
486 Text block1 [abstract] Abstract spil:TextBlock1Abstract
487 Income Taxes Recognized in Profit or Loss Concept (Text Block (HTML)) For Period spil:DisclosureOfReconciliationOfIncomeBeforeIncomeTaxAndIncomeTaxExpenseRecognizedInProfitOrLossExplanatory
488 Profit Before Tax Differs from the Theoretical Amount that Would Arise using the Weighted Average Tax Rate Concept (Text Block (HTML)) For Period spil:DisclosureOfProfitLossBeforeIncomeTaxExpenseExplanatory
489 Income Taxes Recognized in Other Comprehensive Income Concept (Text Block (HTML)) For Period spil:DisclosureOfTaxRelatingToComponentsOfOtherComprehensiveIncomeOrLossExplanatory
490 Changes in deferred income tax assets and liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
491 Unrecognized Deferred Income Tax Liabilities Relating to Taxable Temporary Differences for Investments in Foreign Subsidiaries Concept (Text Block (HTML)) For Period spil:DisclosureInvestmentInForeignSubsidiariesExplanatory
492 1069 - Disclosure - Earnings Per Share (EPS) (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfEarningsPerShareExplanatoryTables
493 Implied Table Table

*

*

implied:Table
494 Text block1 [abstract] Abstract spil:TextBlock1Abstract
495 Schedule of Earnings Per Share Concept (Text Block (HTML)) For Period spil:DisclosureOfEquityInEarningsLossesOfNonConsolidatedCompaniesExplanatory
496 1070 - Disclosure - Supplemental Cash Flow Information (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfSupplementalCashFlowInformationExplanatoryTables
497 Implied Table Table

*

*

implied:Table
498 Text block1 [abstract] Abstract spil:TextBlock1Abstract
499 Summary of Investment Activities Concept (Text Block (HTML)) For Period spil:DisclosureOfInvestmentActivitiesPartiallyPaidByCashExplanatory
500 Summary of Reconcilation of Liablities from Financing Activities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory
501 Summary of Non-Cash Investment Activities Concept (Text Block (HTML)) For Period spil:ScheduleOfNonCashInvestingActivitiesExplanatory
502 Summary of Capital Return Concept (Text Block (HTML)) For Period spil:DisclosureOfCapitalReductionsInInvestmentsInAssociatesExplanatory
503 1071 - Disclosure - Related Party Transactions (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfRelatedPartyExplanatoryTables
504 Implied Table Table

*

*

implied:Table
505 Text block1 [abstract] Abstract spil:TextBlock1Abstract
506 Schedule of Transactions Between Company and Other Related Parties Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory
507 Schedule of Personnel Compensations to Directors, Supervisors, and Managements Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory
508 1072 - Disclosure - Assets Pledged as Collateral (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureAssetsPledgedAsCollateralExplanatoryTables
509 Implied Table Table

*

*

implied:Table
510 Text block1 [abstract] Abstract spil:TextBlock1Abstract
511 Summary of Assets Pledged as Collateral Concept (Text Block (HTML)) For Period spil:DisclosureDetailsOfAssetsPledgedAsCollateralExplanatory
512 1073 - Disclosure - Commitments and Contingencies (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfCommitmentsAndContingentLiabilitiesExplanatoryTables
513 Implied Table Table

*

*

implied:Table
514 Text block1 [abstract] Abstract spil:TextBlock1Abstract
515 Summary of Future Minimum Lease Payments Under Non-cancellable Operating Leases Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory
516 1074 - Disclosure - Financial Risk Management (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialRiskManagementExplanatoryTables
517 Implied Table Table

*

*

implied:Table
518 Text block1 [abstract] Abstract spil:TextBlock1Abstract
519 Summary of Exposure to Foreign Exchange Risks Concept (Text Block (HTML)) For Period spil:DisclosureOfExposureToForeignExchangeRisksExplanatory
520 Summary of Aging Analysis of Accounts Receivable Concept (Text Block (HTML)) For Period spil:DisclosureOfAgingAnalysisOfAccountsReceivableExplanatory
521 Summary of Maturity of Financial Liabilities Concept (Text Block (HTML)) For Period spil:DisclosureOfMaturityOfFinancialLiabilitiesExplanatory
522 1075 - Disclosure - Fair Value Information on Financial Instruments (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfFairValueMeasurementExplanatoryTables
523 Implied Table Table

*

*

implied:Table
524 Text block1 [abstract] Abstract spil:TextBlock1Abstract
525 Summary of Convertible Bonds Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfFinancialInstrumentsExplanatory
526 Summary of Financial Instruments Measured at Fair Value Concept (Text Block (HTML)) For Period spil:DisclosureOfFinancialAssetsAtFairValueThroughProfitOrLossExplanatory
527 Summary of Reconciliation of Level 3 Fair Value Measurements of Financial Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory
528 1076 - Disclosure - Segment Information (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfEntitysReportableSegmentsExplanatoryTables
529 Implied Table Table

*

*

implied:Table
530 Text block1 [abstract] Abstract spil:TextBlock1Abstract
531 Summary of Breakdown of Revenue From Different Products and Services Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfProductsAndServicesExplanatory
532 Summary of Operations in Different Geographic Areas Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeographicalAreasExplanatory
533 1077 - Disclosure - Valuation and Qualifying Account (Tables) Network

*

*

http://www.spil.com.tw/taxonomy/role/NotesToFinancialStatementsDisclosureOfScheduleOfValuationAndQualifyingAccountsExplanatoryTables
534 Implied Table Table

*

*

implied:Table
535 Text block1 [abstract] Abstract spil:TextBlock1Abstract
536 Valuation and Qualifying Account Concept (Text Block (HTML)) For Period spil:DisclosureOfDetailsOfValuationAndQualifyingAccountsExplanatory
537 1078 - Disclosure - The Adoption of New and Amended Standards and Interpretations - Summary of Adoption of New and Amended Standards and Interpretations (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureTheAdoptionOfNewAndAmendedStandardsAndInterpretationsSummaryOfAdoptionOfNewAndAmendedStandardsAndInterpretations
538 Disclosure of expected impact of initial application of new standards or interpretations [table] Table

*

*

ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsTable
539 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
540 Currently stated [member] Member ifrs-full:RestatedMember
541 Previously stated [member] Member ifrs-full:PreviouslyStatedMember
542 Effect of adoption of new standards [member] Member ifrs-full:IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsMember
543 Increase (decrease) due to changes in accounting policy [member] Member ifrs-full:FinancialEffectOfChangesInAccountingPolicyMember
544 Disclosure of expected impact of initial application of new standards or interpretations [line items] LineItems ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems
545 Financial assets at fair value through profit or loss, non-current Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss
546 Available-for-sale financial assets, non-current Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAvailableforsale
547 Contract assets - current Concept (Monetary) As Of Debit ifrs-full:CurrentContractAssets
548 Accounts receivable, net Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
549 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
550 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
551 Deferred income tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
552 TOTAL ASSETS Concept (Monetary) As Of Debit ifrs-full:Assets
553 Contract liabilities - current Concept (Monetary) As Of Credit ifrs-full:CurrentContractLiabilities
554 Other current liabilities - other Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
555 Deferred income tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
556 Total Liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
557 Unappropriated earnings Concept (Monetary) As Of Credit spil:UnappropriatedEarnings
558 Accumulated other comprehensive income Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
559 Total Shareholders' Equity Concept (Monetary) As Of Credit ifrs-full:Equity
560 TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
561 1079 - Disclosure - The Adoption of New and Amended Standards and Interpretations - Summary of Adoption of New and Amended Standards and Interpretations (Parenthetical) (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureTheAdoptionOfNewAndAmendedStandardsAndInterpretationsSummaryOfAdoptionOfNewAndAmendedStandardsAndInterpretationsParenthetical
562 Disclosure of expected impact of initial application of new standards or interpretations [table] Table

*

*

ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsTable
563 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
564 Currently stated [member] Member ifrs-full:RestatedMember
565 Effect of adoption of new standards [member] Member ifrs-full:IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsMember
566 Increase (decrease) due to changes in accounting policy required by IFRS 9 [member] Member spil:IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRS9Member
567 Increase (decrease) due to changes in accounting policy required by IFRS15 [member] Member spil:IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRS15Member
568 Disclosure of expected impact of initial application of new standards or interpretations [line items] LineItems ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems
569 Financial assets at fair value through profit or loss, non-current Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss
570 Available-for-sale financial assets, non-current Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAvailableforsale
571 Increase (decrease) accumulated other comprehensive income Concept (Monetary) As Of Credit spil:UnappropriatedEarnings
572 Increase (decrease) in other equity interest Concept (Monetary) For Period Credit spil:IncreaseDecreaseInOtherEquityInterest
573 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
574 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
575 Increase (decrease) in retained earnings Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings
576 Contract asset Concept (Monetary) As Of Debit ifrs-full:CurrentContractAssets
577 Increase (decrease) in contract assets Concept (Monetary) For Period Debit spil:IncreaseDecreaseInContractAssets
578 Increase (decrease) in work-in-process inventories Concept (Monetary) For Period Debit spil:DecreaseIncreaseInWorkInProcessInventories
579 Contract liabilities - current Concept (Monetary) As Of Credit ifrs-full:CurrentContractLiabilities
580 Other current liabilities - other Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
581 Deferred income tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
582 Deferred income tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
583 1080 - Disclosure - Summary of Significant Accounting Policies - Summary of Consolidated Subsidiaries (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfConsolidatedSubsidiaries
584 Disclosure of subsidiaries [table] Table

*

*

ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
585 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
586 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
587 SPIL (B.V.I.) Holding Limited [member] Member spil:SPILBVIHoldingLimitedMember
588 Siliconware Investment Co., Ltd [member] Member spil:SiliconwareInvestmentCompanyLimitedMember
589 Siliconware USA, Inc. [member] Member spil:SiliconwareUSAIncMember
590 SPIL (Cayman) Holding Limited [member] Member spil:SPILCaymanHoldingLimitedMember
591 Siliconware Technology (Suzhou) Limited [member] Member spil:SiliconwareTechnologySuzhouLimitedMember
592 Siliconware Electronics (Fujian) Co., Limited [member] Member spil:SiliconwareElectronicsFujianCompanyLimitedMember
593 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
594 Name of investor Concept (Text/String) For Period spil:NameOfInvestor
595 Main operating activities Concept (Text/String) For Period ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities
596 % of ownership held by the named investors Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
597 1081 - Disclosure - Summary of Significant Accounting Policies - Summary of Consolidated Subsidiaries (Parenthetical) (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfConsolidatedSubsidiariesParenthetical
598 Disclosure of subsidiaries [table] Table

*

*

ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
599 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
600 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
601 Siliconware Electronics (Fujian) Co., Limited [member] Member spil:SiliconwareElectronicsFujianCompanyLimitedMember
602 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
603 Initial capital amount Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
604 1082 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformation
605 Disclosure of significant accounting policies [table] Table

*

*

spil:DisclosureOfSignificantAccountingPoliciesTable
606 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
607 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
608 Software [member] Member ifrs-full:ComputerSoftwareMember
609 Disclosure of significant accounting policies [line items] LineItems spil:DisclosureOfSignificantAccountingPoliciesLineItems
610 Foreign currency exchange rate, per US$ Concept (Decimal) As Of ifrs-full:ClosingForeignExchangeRate
611 Useful lives of intangible assets Concept (Text/String) For Period ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
612 Tax estimated and recognized as percentage of undistributed earnings when income is earned Concept (Percent) For Period spil:EstimatedUndistributedEarningsTaxPercentage
613 1083 - Disclosure - Summary of Significant Accounting Policies - Summary of Estimated Useful Lives of Property Plant and Equipment (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfEstimatedUsefulLivesOfPropertyPlantAndEquipment
614 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
615 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
616 Unrealized gain on property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
617 Buildings [member] Member ifrs-full:BuildingsMember
618 Construction and Improvements [member] Member ifrs-full:ConstructionInProgressMember
619 Machinery and equipment [member] Member spil:MachineryAndEquipment1Member
620 Other equipment [member] Member ifrs-full:OtherPropertyPlantAndEquipmentMember
621 Range [axis] Axis ifrs-full:RangeAxis
622 Ranges [member] Member ifrs-full:RangesMember
623 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
624 Top of range [member] Member ifrs-full:TopOfRangeMember
625 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
626 Estimated useful lives Concept (Text/String) For Period ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
627 1084 - Disclosure - Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureCashAndCashEquivalentsSummaryOfCashAndCashEquivalents
628 Implied Table Table

*

*

implied:Table
629 Subclassifications of assets, liabilities and equities [abstract] Abstract ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract
630 Cash on hand and petty cash Concept (Monetary) As Of Debit ifrs-full:CashOnHand
631 Savings accounts and checking accounts Concept (Monetary) As Of Debit ifrs-full:BalancesWithBanks
632 Time deposits Concept (Monetary) As Of Debit ifrs-full:ShorttermDepositsClassifiedAsCashEquivalents
633 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
634 1085 - Disclosure - Accounts Receivable, Net - Summary of Accounts Receivable Net (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureAccountsReceivableNetSummaryOfAccountsReceivableNet
635 Disclosure of financial assets [table] Table

*

*

ifrs-full:DisclosureOfFinancialAssetsTable
636 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
637 Carrying amount [member] Member ifrs-full:CarryingAmountMember
638 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
639 Allowance for sale discounts [member] Member spil:AllowanceForSaleDiscountsMember
640 Allowance for doubtful accounts [member] Member ifrs-full:AllowanceForCreditLossesMember
641 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
642 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
643 1086 - Disclosure - Accounts Receivable, Net - Summary of Movements of Allowance for Doubtful Accounts (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureAccountsReceivableNetSummaryOfMovementsOfAllowanceForDoubtfulAccounts
644 Disclosure of financial assets [table] Table

*

*

ifrs-full:DisclosureOfFinancialAssetsTable
645 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
646 Carrying amount [member] Member ifrs-full:CarryingAmountMember
647 Allowance for doubtful accounts [member] Member ifrs-full:AllowanceForCreditLossesMember
648 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
649 Balance as of January 1 Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
650 Allowance for doubtful accounts Concept (Monetary) For Period ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
651 Write-offs Concept (Monetary) For Period Debit ifrs-full:UtilisationAllowanceAccountForCreditLossesOfFinancialAssets
652 Balance at January 1 and December 31 Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
653 1087 - Disclosure - Inventories - Summary of Inventory (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureInventoriesSummaryOfInventory
654 Implied Table Table

*

*

implied:Table
655 Classes of current inventories [abstract] Abstract ifrs-full:ClassesOfInventoriesAbstract
656 Raw materials and supplies Concept (Monetary) As Of Debit ifrs-full:CurrentRawMaterialsAndCurrentProductionSupplies
657 Work in process Concept (Monetary) As Of Debit ifrs-full:WorkInProgress
658 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
659 1088 - Disclosure - Inventories - Summary of Inventory Amounts Recognized in Profit or Loss (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureInventoriesSummaryOfInventoryAmountsRecognizedInProfitOrLoss
660 Implied Table Table

*

*

implied:Table
661 Classes of current inventories [abstract] Abstract ifrs-full:ClassesOfInventoriesAbstract
662 Cost of goods sold Concept (Monetary) For Period Debit ifrs-full:CostOfInventoriesRecognisedAsExpenseDuringPeriod
663 Decline in market value and loss on obsolescence Concept (Monetary) For Period ifrs-full:InventoryWritedown2011
664 Others Concept (Monetary) For Period Debit spil:OtherCostRevenueOfInventory
665 Amounts recognized in profit or loss Concept (Monetary) For Period Debit ifrs-full:CostOfSales
666 1089 - Disclosure - Non-current Assets Held for Sales - Summary of Non-current Assets Held for Sales (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureNoncurrentAssetsHeldForSalesSummaryOfNoncurrentAssetsHeldForSales
667 Implied Table Table

*

*

implied:Table
668 Subclassifications of assets, liabilities and equities [abstract] Abstract ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract
669 Plant held for sale Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale
670 1090 - Disclosure - Non-current Assets Held for Sales - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureNoncurrentAssetsHeldForSalesAdditionalInformation
671 Implied Table Table

*

*

implied:Table
672 Subclassifications of assets, liabilities and equities [abstract] Abstract ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract
673 Consideration on transfer completed Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
674 Gains on disposal of non-current assets held for sales Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfNoncurrentAssets
675 1091 - Disclosure - Available-for-sale Financial Assets - Summary of Available-for-sale Financial Assets (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureAvailableforsaleFinancialAssetsSummaryOfAvailableforsaleFinancialAssets
676 Disclosure of financial assets [table] Table

*

*

ifrs-full:DisclosureOfFinancialAssetsTable
677 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
678 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
679 Common Stock [member] Member spil:CommonStocksMember
680 Fund [member] Member spil:FundsMember
681 Depositary Shares [member] Member spil:AmericanDepositorySharesMember
682 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
683 Available-for-sale financial assets, current Concept (Monetary) As Of Debit ifrs-full:CurrentFinancialAssetsAvailableforsale
684 Available-for-sale financial assets, non-current Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAvailableforsale
685 1092 - Disclosure - Available-for-sale Financial Assets - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureAvailableforsaleFinancialAssetsAdditionalInformation
686 Disclosure of financial assets [table] Table

*

*

ifrs-full:DisclosureOfFinancialAssetsTable
687 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
688 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
689 ChipMOS Technologies Inc., [member] Member spil:ChipMosTechnologiesIncMember
690 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
691 Gains on disposal of investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfInvestments
692 Impairment loss due to decline in stock price Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossOnFinancialAssets
693 Cash to be received for each share exchanged as per merger agreement Concept (Share) For Period spil:MergerAgreementCashPerShare
694 Number of shares received for each share as per merger agreement Concept (Shares) As Of spil:NumberOfCommonSharesReceived
695 Number of common shares to be issued for each American Depository Shares(ADS) Concept (Shares) As Of spil:NumberOfCommonSharesRepresentedByADSs
696 Premium from the merger Concept (Monetary) For Period Credit spil:AvailableForSaleFinancialAssetsOtherIncome
697 1093 - Disclosure - Investments Accounted for Using Equity Method - Summary of Significant Investments in Associates (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureInvestmentsAccountedForUsingEquityMethodSummaryOfSignificantInvestmentsInAssociates
698 Disclosure of associates [table] Table

*

*

ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
699 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
700 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
701 Yann Yuan Investment Co., Ltd [member] Member spil:YannYuanInvestmentCoLtdMember
702 ASM Advanced Packaging Materials Pte. Ltd. [member] Member spil:ASMAdvancedPackagingMaterialsPteLtdMember
703 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
704 Registration Concept (Text/String) For Period ifrs-full:CountryOfIncorporationOrResidenceOfAssociate
705 Carrying Amount Concept (Monetary) As Of Debit ifrs-full:InvestmentAccountedForUsingEquityMethod
706 % of ownership interest Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
707 1094 - Disclosure - Investments Accounted for Using Equity Method - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureInvestmentsAccountedForUsingEquityMethodAdditionalInformation
708 Disclosure of associates [table] Table

*

*

ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
709 Legal entity [axis] Axis dei:LegalEntityAxis
710 Entity [Domain] Member dei:EntityDomain
711 Interconnect [member] Member spil:InterconnectMember
712 Third Party Shareholder [Member] Member spil:UnrelatedThirdPartyMember
713 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
714 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
715 Yann Yuan Investment Co., Ltd [member] Member spil:YannYuanInvestmentCoLtdMember
716 ASM Advanced Packaging Materials Pte. Ltd. [member] Member spil:ASMAdvancedPackagingMaterialsPteLtdMember
717 ACSIP Technology Corp [member] Member spil:ACSIPTechnologyCorpMember
718 Interconnect [member] Member spil:InterconnectMember
719 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
720 Gains on disposal of investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfInvestments
721 Percentage of ownership Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
722 Decrease of net equity on associate Concept (Monetary) As Of Debit spil:DecreaseInEquity
723 Interest previously recognized as other comprehensive gains and losses reclassified to investment disposal gains Concept (Monetary) For Period Credit ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax
724 Investment accounted for using equity method Concept (Monetary) As Of Debit ifrs-full:InvestmentAccountedForUsingEquityMethod
725 Shares of SPIL's common stock held by associate Concept (Shares) As Of ifrs-full:SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates
726 Carrying amount of investment Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod
727 Unrecognized share of loss due to sustained losses Concept (Monetary) For Period Debit ifrs-full:UnrecognisedShareOfLossesOfAssociates
728 Proportion of ownership interest acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
729 Gains on reversal of impairment loss of non-financial assets Concept (Monetary) For Period Credit ifrs-full:ReversalOfImpairmentLoss
730 Recognized share of loss due to sustained losses Concept (Monetary) For Period Credit ifrs-full:GainsLossesRecognisedWhenControlInSubsidiaryIsLost
731 Interest distributed as capital return Concept (Percent) For Period spil:InterestDistributedAsCapitalReturn
732 Gains on disposal of investments Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfInvestments
733 Recognized disposal loss Concept (Monetary) For Period Debit ifrs-full:LossesOnDisposalsOfInvestments
734 1095 - Disclosure - Investments Accounted for Using Equity Method - Summary of the Analysis of Other Comprehensive Income by Item (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureInvestmentsAccountedForUsingEquityMethodSummaryOfTheAnalysisOfOtherComprehensiveIncomeByItem
735 Disclosure of associates [table] Table

*

*

ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
736 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
737 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
738 Aggregated individually immaterial associates [member] Member ifrs-full:AggregatedIndividuallyImmaterialAssociatesMember
739 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
740 Net (loss) income Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
741 Other comprehensive income (loss) Concept (Monetary) For Period Credit ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
742 Total comprehensive income (loss) Concept (Monetary) For Period Credit ifrs-full:ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
743 1096 - Disclosure - Financial Instruments by Category - Summary of Financial Instruments by Category (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureFinancialInstrumentsByCategorySummaryOfFinancialInstrumentsByCategory
744 Implied Table Table

*

*

implied:Table
745 Disclosure of detailed information about financial instruments [abstract] Abstract ifrs-full:DisclosureOfFinancialInstrumentsAbstract
746 Financial Assets Abstract ifrs-full:DisclosureOfFinancialAssetsAbstract
747 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
748 Notes receivable Concept (Monetary) As Of Debit spil:CurrentNotesReceivable
749 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
750 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
751 Time deposit pledged as collateral (shown as other current assets-other) Concept (Monetary) As Of Debit spil:TimeDepositPledgedAsCollateral
752 Refundable deposit (shown as other non-current assets-other) Concept (Monetary) As Of Debit spil:RefundableDeposits
753 Available-for-sale financial assets, current Concept (Monetary) As Of Debit ifrs-full:CurrentFinancialAssetsAvailableforsale
754 Available-for-sale financial assets, non-current Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAvailableforsale
755 Financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
756 Financial Liabilities Abstract ifrs-full:DisclosureOfFinancialLiabilitiesAbstract
757 Short-term loans Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
758 Accounts payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
759 Other payables Concept (Monetary) As Of Credit ifrs-full:OtherCurrentPayables
760 Receipts under custody (shown as other current liabilities-other) Concept (Monetary) As Of Credit spil:ReceiptsUnderCustody
761 Deposit received (shown as other current liabilities-other and other non-current liabilities) Concept (Monetary) As Of Credit spil:DepositReceived
762 Convertible bonds (including the current portion) Concept (Monetary) As Of Credit ifrs-full:BondsIssued
763 Long-term loans (including the current portion) Concept (Monetary) As Of Credit ifrs-full:LoansReceived
764 Long-term payable (shown as other non-current liabilities) Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentPayables
765 Financial liability at fair value through profit or loss Concept (Monetary) As Of Credit ifrs-full:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss
766 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
767 1097 - Disclosure - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosurePropertyPlantAndEquipmentSummaryOfPropertyPlantAndEquipment
768 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
769 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
770 Unrealized gain on property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
771 Land [member] Member ifrs-full:LandMember
772 Buildings [member] Member ifrs-full:BuildingsMember
773 Machinery and equipment [member] Member spil:MachineryAndEquipment1Member
774 Other equipment [member] Member ifrs-full:OtherPropertyPlantAndEquipmentMember
775 Construction in progress and equipment awaiting for inspection [member] Member spil:ConstructionInProgressAndEquipmentAwaitingForInspectionMember
776 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
777 Carrying amount [member] Member ifrs-full:CarryingAmountMember
778 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
779 Accumulated depreciation and impairment [member] Member spil:AccumulatedDepreciationAndImpairmentMember
780 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
781 Beginning balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
782 Depreciation expense Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
783 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
784 Impairment losses Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
785 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
786 Transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
787 Exchange differences, net Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
788 Ending balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
789 1098 - Disclosure - Property, Plant and Equipment - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosurePropertyPlantAndEquipmentAdditionalInformation
790 Disclosure of detailed information about financial instruments [table] Table

*

*

ifrs-full:DisclosureOfFinancialInstrumentsTable
791 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
792 Carrying amount [member] Member ifrs-full:CarryingAmountMember
793 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
794 Accumulated depreciation and impairment [member] Member spil:AccumulatedDepreciationAndImpairmentMember
795 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
796 Interest capitalized Concept (Monetary) For Period ifrs-full:InterestCostsCapitalised
797 Recognized impairment loss Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
798 Reclassified the plant held for sale as non-current assets held for sale Concept (Monetary) For Period Credit ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment
799 1099 - Disclosure - Intangible Assets - Summary of Intangible Assets (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureIntangibleAssetsSummaryOfIntangibleAssets
800 Disclosure of detailed information about intangible assets [table] Table

*

*

ifrs-full:DisclosureOfIntangibleAssetsTable
801 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
802 Carrying amount [member] Member ifrs-full:CarryingAmountMember
803 Accumulated amortization [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
804 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
805 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
806 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
807 License fee [member] Member ifrs-full:LicencesAndFranchisesMember
808 Software [member] Member ifrs-full:ComputerSoftwareMember
809 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
810 Beginning balance Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
811 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
812 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsIntangibleAssetsOtherThanGoodwill
813 Exchange differences, net Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill
814 Ending balance Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
815 1100 - Disclosure - Intangible Assets - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureIntangibleAssetsAdditionalInformation
816 Disclosure of detailed information about intangible assets [table] Table

*

*

ifrs-full:DisclosureOfIntangibleAssetsTable
817 Income Statement Location [Axis] Axis us-gaap:IncomeStatementLocationAxis
818 Income Statement Location [Domain] Member us-gaap:IncomeStatementLocationDomain
819 Operating costs [member] Member spil:OperatingCostsMember
820 Operating expenses [member] Member spil:OperatingExpensesMember
821 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
822 Amortization of intangible assets Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
823 1101 - Disclosure - Financial Liabilities at Fair Value Through Profit or Loss - Summary of Financial Liabilities at Fair Value through Profit or Loss (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureFinancialLiabilitiesAtFairValueThroughProfitOrLossSummaryOfFinancialLiabilitiesAtFairValueThroughProfitOrLoss
824 Implied Table Table

*

*

implied:Table
825 Designated financial liabilities at fair value through profit or loss [abstract] Abstract ifrs-full:DesignatedFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract
826 Conversion option, redemption option and put option of convertible bonds upon initial recognition Concept (Monetary) As Of Credit ifrs-full:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognition
827 Valuation adjustments Concept (Monetary) As Of Credit spil:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLossUponValuationAdjustments
828 Financial liabilities at fair value through profit or loss Concept (Monetary) As Of Credit ifrs-full:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss
829 1102 - Disclosure - Financial Liabilities at Fair Value Through Profit or Loss - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureFinancialLiabilitiesAtFairValueThroughProfitOrLossAdditionalInformation
830 Implied Table Table

*

*

implied:Table
831 Designated financial liabilities at fair value through profit or loss [abstract] Abstract ifrs-full:DesignatedFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract
832 Gains (losses) on financial liabilities at fair value through profit or loss Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialLiabilitiesAtFairValueThroughProfitOrLoss
833 1103 - Disclosure - Other Payables - Schedule of Other Payables (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureOtherPayablesScheduleOfOtherPayables
834 Implied Table Table

*

*

implied:Table
835 Subclassifications of assets, liabilities and equities [abstract] Abstract ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract
836 Payables for equipment Concept (Monetary) As Of Credit ifrs-full:CurrentPayablesForPurchaseOfNoncurrentAssets
837 Payables for employees' compensations Concept (Monetary) As Of Credit ifrs-full:ShorttermEmployeeBenefitsAccruals
838 Others Concept (Monetary) As Of Credit spil:MiscellaneousOtherCurrentPayables
839 Other payables Concept (Monetary) As Of Credit ifrs-full:OtherCurrentPayables
840 1104 - Disclosure - Convertible Bonds - Summary of Convertible Bonds (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureConvertibleBondsSummaryOfConvertibleBonds
841 Disclosure of detailed information about borrowings [table] Table

*

*

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
842 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
843 Carrying amount [member] Member ifrs-full:CarryingAmountMember
844 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
845 Discounts on bonds payable [member] Member spil:DiscountsOnBondsPayableMember
846 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
847 Convertible bonds Concept (Monetary) As Of Credit ifrs-full:BondsIssued
848 Current portion Concept (Monetary) As Of Credit ifrs-full:CurrentBondsIssuedAndCurrentPortionOfNoncurrentBondsIssued
849 Total convertible bonds Concept (Monetary) As Of Credit ifrs-full:NoncurrentPortionOfNoncurrentBondsIssued
850 1105 - Disclosure - Convertible Bonds - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureConvertibleBondsAdditionalInformation
851 Disclosure of detailed information about borrowings [table] Table

*

*

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
852 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
853 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
854 Unsecured overseas convertible bonds [member] Member spil:UnsecuredOverseasConvertibleBondsMember
855 Range [axis] Axis ifrs-full:RangeAxis
856 Ranges [member] Member ifrs-full:RangesMember
857 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
858 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
859 Unsecured overseas convertible bonds issued Concept (Monetary) As Of Credit ifrs-full:BondsIssued
860 Unsecured overseas convertible bonds maturity Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
861 Coupon interest rate Concept (Percent) For Period spil:InterestRateOfBondsIssued
862 Unsecured overseas convertible bonds par value Concept (Monetary) As Of spil:BondsIssuedParValue
863 Unsecured overseas convertible bonds conversions price Concept (Share) For Period spil:UnsecuredOverseasConvertibleBondsConversionPrice
864 Foreign exchange rate Concept (Decimal) As Of ifrs-full:ClosingForeignExchangeRate
865 Bond redemption percentage at maturity Concept (Percent) For Period spil:PercentageOfBondRedeemedAtMaturity
866 Description of principal amount repurchase by holder Concept (Text/String) For Period spil:DescriptionOfPrincipalAmountRepurchaseByHolder
867 Minimum vesting period of bonds Concept (Text/String) For Period spil:VestingPeriodOfBonds
868 Description of terms and conditions of bond redemptions Concept (Text/String) For Period spil:DescriptionOfBondRedemptions
869 Aggregate fair value of bond options Concept (Monetary) As Of Credit spil:BondOptionsFairValue
870 Effective interest rate of debt host contract Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
871 Interest expenses on corporate bonds payable Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnBonds
872 1106 - Disclosure - Loans - Summary of Short-term Loans (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureLoansSummaryOfShorttermLoans
873 Disclosure of detailed information about borrowings [table] Table

*

*

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
874 Range [axis] Axis ifrs-full:RangeAxis
875 Ranges [member] Member ifrs-full:RangesMember
876 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
877 Top of range [member] Member ifrs-full:TopOfRangeMember
878 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
879 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
880 Short-term Loans [Member] Member spil:ShortTermLoansMember
881 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
882 Credit loans Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
883 Interest rates Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
884 1107 - Disclosure - Loans - Summary of Long-term Loans (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureLoansSummaryOfLongtermLoans
885 Disclosure of detailed information about borrowings [table] Table

*

*

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
886 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
887 Carrying amount [member] Member ifrs-full:CarryingAmountMember
888 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
889 Arrangement fee of syndicated loans [member] Member spil:ArrangementFeeOfSyndicatedLoansMember
890 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
891 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
892 Long-term loans [member] Member spil:LongTermLoansMember
893 Syndicated bank loans 2012.08.10 - 2017.08.10 [member] Member spil:SyndicatedBankLoansDueFromAugustTenTwoThousandAndTwelveToAugustTenTwoThousandAndSeventeenMember
894 Other bank loans 2013.12.31 - 2016.12.31 Extended to 2019.12.30, Repayables in 3 semi-annually installments starting from December 28, 2018 [member] Member spil:OtherBankLoansDueFromDecemberThirtyOneTwoThousandAndThirteenToDecemberThirtyOneTwoThousandAndSixteenMember
895 Other bank loans 2014.08.11 - 2018.12.13 Repayables in 5 Semi-annually Installments Starting from December 13, 2016 [member] Member spil:OtherBankLoansDueFromAugustElevenTwoThousandAndFourteenToDecemberThirteenTwoThousandAndEighteenMember
896 Other bank loans 2014.08.11 - 2018.12.10 Repayables in 6 Semi-annually Installments Starting from June 13, 2016 [member] Member spil:OtherBankLoansDueFromAugustElevenTwoThousandAndFourteenToDecemberTenTwoThousandAndEighteenMember
897 Other bank loans 2014.08.11 - 2019.08.11 Repayables in 6 Semi-annually Installments Starting from February 10, 2017 [member] Member spil:OtherBankLoansDueFromAugustElevenTwoThousandAndFourteenToAugustElevenTwoThousandAndNineteenMember
898 Other bank loans 2015.07.01 - 2020.07.01 Repayables in 6 Semi-annually Installments Starting from January 2, 2018 [member] Member spil:OtherBankLoansDueFromJulyOneTwoThousandAndFifteenToJulyOneTwoThousandTwoThousandAndTwentyMember
899 Other bank loans 2015.11.13 - 2020.11.13 Repayables in 6 Semi-annually Installments Starting from May 11, 2018 [member] Member spil:OtherBankLoansDueFromNovemberThirteenTwoThousandAndFifteenToNovemberThirteenTwoThousandAndTwentyMember
900 Other bank loans 2016.07.19 - 2021.01.10 Repayables in 6 Semi-annually Installments Starting from July 10, 2018 [member] Member spil:OtherBankLoansDueFromJulyNineteenTwoThousandAndSixteenToJanuaryTenTwoThousandAndTwentyOneMember
901 Other bank loans 2016.07.19 - 2021.07.19 Repayables in 6 Semi-annually Installments Starting from January 18, 2019 [member] Member spil:OtherBankLoansDueFromJulyNineteenTwoThousandAndSixteenToJulyNineteenTwoThousandAndTwentyOneMember
902 Other bank loans 2016.12.30 - 2021.12.30 Repayables in 6 Semi-annually Installments Starting from June 28, 2019 [member] Member spil:OtherBankLoansDueFromDecemberThirtyTwoThousandAndSixteenToDecemberThirtyTwoThousandAndTwentyOneMember
903 Range [axis] Axis ifrs-full:RangeAxis
904 Ranges [member] Member ifrs-full:RangesMember
905 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
906 Top of range [member] Member ifrs-full:TopOfRangeMember
907 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
908 Long-term Loans Concept (Monetary) As Of Credit ifrs-full:LoansReceived
909 Current portion Concept (Monetary) As Of Credit ifrs-full:CurrentLoansReceivedAndCurrentPortionOfNoncurrentLoansReceived
910 Long-term loans Concept (Monetary) As Of Credit ifrs-full:NoncurrentPortionOfNoncurrentLoansReceived
911 Interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
912 1108 - Disclosure - Loans - Summary of Long-term Loans (Parenthetical) (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureLoansSummaryOfLongtermLoansParenthetical
913 Disclosure of detailed information about borrowings [table] Table

*

*

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
914 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
915 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
916 Syndicated bank loans 2012.08.10 - 2017.08.10 [member] Member spil:SyndicatedBankLoansDueFromAugustTenTwoThousandAndTwelveToAugustTenTwoThousandAndSeventeenMember
917 Other bank loans 2013.12.31 - 2016.12.31 Extended to 2019.12.30, Repayables in 3 semi-annually installments starting from December 28, 2018 [member] Member spil:OtherBankLoansDueFromDecemberThirtyOneTwoThousandAndThirteenToDecemberThirtyOneTwoThousandAndSixteenMember
918 Other bank loans 2014.08.11 - 2018.12.13 Repayables in 5 Semi-annually Installments Starting from December 13, 2016 [member] Member spil:OtherBankLoansDueFromAugustElevenTwoThousandAndFourteenToDecemberThirteenTwoThousandAndEighteenMember
919 Other bank loans 2014.08.11 - 2018.12.10 Repayables in 6 Semi-annually Installments Starting from June 13, 2016 [member] Member spil:OtherBankLoansDueFromAugustElevenTwoThousandAndFourteenToDecemberTenTwoThousandAndEighteenMember
920 Other bank loans 2014.08.11 - 2019.08.11 Repayables in 6 Semi-annually Installments Starting from February 10, 2017 [member] Member spil:OtherBankLoansDueFromAugustElevenTwoThousandAndFourteenToAugustElevenTwoThousandAndNineteenMember
921 Other bank loans 2015.07.01 - 2020.07.01 Repayables in 6 Semi-annually Installments Starting from January 2, 2018 [member] Member spil:OtherBankLoansDueFromJulyOneTwoThousandAndFifteenToJulyOneTwoThousandTwoThousandAndTwentyMember
922 Other bank loans 2015.11.13 - 2020.11.13 Repayables in 6 Semi-annually Installments Starting from May 11, 2018 [member] Member spil:OtherBankLoansDueFromNovemberThirteenTwoThousandAndFifteenToNovemberThirteenTwoThousandAndTwentyMember
923 Other bank loans 2016.07.19 - 2021.01.10 Repayables in 6 Semi-annually Installments Starting from July 10, 2018 [member] Member spil:OtherBankLoansDueFromJulyNineteenTwoThousandAndSixteenToJanuaryTenTwoThousandAndTwentyOneMember
924 Other bank loans 2016.07.19 - 2021.07.19 Repayables in 6 Semi-annually Installments Starting from January 18, 2019 [member] Member spil:OtherBankLoansDueFromJulyNineteenTwoThousandAndSixteenToJulyNineteenTwoThousandAndTwentyOneMember
925 Other bank loans 2016.12.30 - 2021.12.30 Repayables in 6 Semi-annually Installments Starting from June 28, 2019 [member] Member spil:OtherBankLoansDueFromDecemberThirtyTwoThousandAndSixteenToDecemberThirtyTwoThousandAndTwentyOneMember
926 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
927 Carrying amount [member] Member ifrs-full:CarryingAmountMember
928 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
929 Range [axis] Axis ifrs-full:RangeAxis
930 Ranges [member] Member ifrs-full:RangesMember
931 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
932 Top of range [member] Member ifrs-full:TopOfRangeMember
933 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
934 Long-term Loans Concept (Monetary) As Of Credit ifrs-full:LoansReceived
935 Long term borrowings maturity date Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
936 Long term borrowing period Concept (Text/String) For Period spil:LongTermBorrowingsRepayablePeriod
937 Increase in loan on 2017.01.19 Concept (Monetary) For Period Debit ifrs-full:ProceedsFromNoncurrentBorrowings
938 1109 - Disclosure - Post-employment Benefit - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosurePostemploymentBenefitAdditionalInformation
939 Disclosure of defined benefit plans [table] Table

*

*

ifrs-full:DisclosureOfDefinedBenefitPlansTable
940 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
941 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
942 Defined benefit plans to executive officer [member] Member spil:DefinedBenefitPlansToExecutiveOfficerMember
943 Actuarial assumptions [axis] Axis ifrs-full:ActuarialAssumptionsAxis
944 Actuarial assumptions [member] Member ifrs-full:ActuarialAssumptionsMember
945 Discount rate [member] Member ifrs-full:ActuarialAssumptionOfDiscountRatesMember
946 Future salary increase [member] Member ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember
947 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
948 Percentage of employer contribution to pension fund Concept (Percent) For Period spil:DefinedContributionPlansEmployerContributionPercentage
949 Pension plan cost of executive officers Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInNetDefinedBenefitLiabilityAsset
950 Net defined benefit obligations of executive officers Concept (Monetary) As Of Debit ifrs-full:SurplusDeficitInPlan
951 Potential increase in principal actuarial assumptions Concept (Percent) As Of ifrs-full:PercentageOfReasonablyPossibleIncreaseInActuarialAssumption
952 Potential decrease in principal actuarial assumptions Concept (Percent) As Of ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption
953 Estimate of contributions expected to be paid to the pension plan in 2018 Concept (Monetary) For Period Credit ifrs-full:EstimateOfContributionsExpectedToBePaidToPlan
954 Weighted average duration of defined benefit plan Concept (Decimal) For Period ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation
955 Percentage contribution to the employees' individual pension accounts Concept (Percent) As Of spil:DefinedContributionPlanMaximumMonthlyContributionsPerEmployeePercent
956 Defined contribution pension plan expenses Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans
957 1110 - Disclosure - Post-employment Benefit - Summary of Amounts Arising from the Defined Benefit Obligation Recognized (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosurePostemploymentBenefitSummaryOfAmountsArisingFromTheDefinedBenefitObligationRecognized
958 Implied Table Table

*

*

implied:Table
959 Disclosure of defined benefit plans [abstract] Abstract ifrs-full:DisclosureOfDefinedBenefitPlansAbstract
960 Present value of defined benefit obligations Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
961 Fair value of plan assets Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
962 Net defined benefit liability Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
963 1111 - Disclosure - Post-employment Benefit - Summary of Movements in Net Defined Benefit Liabilities (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosurePostemploymentBenefitSummaryOfMovementsInNetDefinedBenefitLiabilities
964 Disclosure of defined benefit plans [table] Table

*

*

ifrs-full:DisclosureOfDefinedBenefitPlansTable
965 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
966 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
967 Present value of defined benefit obligations [member] Member ifrs-full:PresentValueOfDefinedBenefitObligationMember
968 Fair value of plan assets [member] Member ifrs-full:PlanAssetsMember
969 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
970 Beginning balance Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
971 Current service cost Concept (Monetary) For Period Credit ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
972 Interest expense (income) Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
973 Subtotal Concept (Monetary) For Period Credit spil:CurrentServiceCostAndInterestExpenseIncomeNetDefinedBenefitLiabilityAsset
974 Remeasurements: Abstract ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract
975 Experience adjustments Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset
976 Changes in demographic assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
977 Changes in financial assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
978 Return of plan assets (excluding amount included in net interest expense) Concept (Monetary) For Period Debit ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset
979 Remeasurements Concept (Monetary) For Period Debit ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
980 Pension fund contribution Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanNetDefinedBenefitLiabilityAsset
981 Paid Pension Concept (Monetary) For Period Debit ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset
982 Ending balance Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
983 1112 - Disclosure - Post-employment Benefit - Summary of Constitution of Fair Value of Plan Assets (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosurePostemploymentBenefitSummaryOfConstitutionOfFairValueOfPlanAssets
984 Implied Table Table

*

*

implied:Table
985 Disclosure of defined benefit plans [abstract] Abstract ifrs-full:DisclosureOfDefinedBenefitPlansAbstract
986 Cash Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets
987 Equity instruments Concept (Monetary) As Of Debit ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets
988 Debt instruments Concept (Monetary) As Of Debit ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets
989 Plan assets at fair value Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
990 1113 - Disclosure - Post-employment Benefit - Summary of Principal Actuarial Assumptions (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosurePostemploymentBenefitSummaryOfPrincipalActuarialAssumptions
991 Implied Table Table

*

*

implied:Table
992 Disclosure of defined benefit plans [abstract] Abstract ifrs-full:DisclosureOfDefinedBenefitPlansAbstract
993 Discount rate Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfDiscountRates
994 Future salary increases Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
995 1114 - Disclosure - Post-employment Benefit - Summary of Defined Benefit Obligation (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosurePostemploymentBenefitSummaryOfDefinedBenefitObligation
996 Disclosure of defined benefit plans [table] Table

*

*

ifrs-full:DisclosureOfDefinedBenefitPlansTable
997 Actuarial assumptions [axis] Axis ifrs-full:ActuarialAssumptionsAxis
998 Actuarial assumptions [member] Member ifrs-full:ActuarialAssumptionsMember
999 Discount rate [member] Member ifrs-full:ActuarialAssumptionOfDiscountRatesMember
1000 Future salary increase [member] Member ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember
1001 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1002 0.5% increase in assumption Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption
1003 0.5% decrease in assumption Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption
1004 1115 - Disclosure - Post-employment Benefit - Summary of Expected Maturity Analysis of Undiscounted Defined Benefit Obligation (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosurePostemploymentBenefitSummaryOfExpectedMaturityAnalysisOfUndiscountedDefinedBenefitObligation
1005 Disclosure of defined benefit plans [table] Table

*

*

ifrs-full:DisclosureOfDefinedBenefitPlansTable
1006 Maturity [axis] Axis ifrs-full:MaturityAxis
1007 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1008 Within 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
1009 1- 2 year(s) [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1010 2-3 years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1011 Over 3 years [member] Member ifrs-full:LaterThanThreeYearsMember
1012 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1013 Expected maturity analysis of undiscounted defined benefit obligation Concept (Monetary) As Of Credit ifrs-full:ActuarialPresentValueOfPromisedRetirementBenefits
1014 1116 - Disclosure - Capital Stock - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureCapitalStockAdditionalInformation
1015 Disclosure of classes of share capital [table] Table

*

*

ifrs-full:DisclosureOfClassesOfShareCapitalTable
1016 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1017 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1018 Depositary Shares [member] Member spil:AmericanDepositorySharesMember
1019 Disclosure of classes of share capital [Line Items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1020 Authorized capital Concept (Monetary) As Of Credit spil:AuthorizedCapital
1021 Paid-in-capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1022 Par value per share Concept (Share) As Of ifrs-full:ParValuePerShare
1023 Number of shares issued, value Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
1024 Number of shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1025 Number of shares of common stock represented by each ADSs Concept (Shares) As Of spil:NumberOfCommonSharesRepresentedByADSs
1026 Offering price per share Concept (Share) For Period spil:OfferingPricePerShare
1027 Number of shares outstanding Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1028 Percentage of American Depository shares as common stock outstanding to vote Concept (Percent) As Of spil:PercentageOfAmericanDepositarySharesAsCommonStockOutstanding
1029 1117 - Disclosure - Capital Reserve - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureCapitalReserveAdditionalInformation
1030 Implied Table Table

*

*

implied:Table
1031 Equity [abstract] Abstract ifrs-full:EquityAbstract
1032 Percentage of capital reserve used to increase the capital limit Concept (Percent) For Period spil:PercentageOfCapitalReserveUsedToIncreaseTheCapitalLimit
1033 Distribution of capital reserve Concept (Monetary) For Period Debit spil:CashDistributionsFromCapitalReserve
1034 Distribution of capital reserve, per share Concept (Share) For Period spil:DistributionCapitalReservePerShare
1035 1118 - Disclosure - Retained Earnings - Additional Information (Details) (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureRetainedEarningsAdditionalInformationDetails
1036 Statement of changes in equity [table] Table

*

*

ifrs-full:StatementOfChangesInEquityTable
1037 Range [axis] Axis ifrs-full:RangeAxis
1038 Ranges [member] Member ifrs-full:RangesMember
1039 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1040 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
1041 Percentage of statutory surplus reserve Concept (Percent) For Period spil:PercentageOfStatutorySurplusReserve
1042 Percentage of cash dividend distribution Concept (Percent) For Period spil:CashDividendPercentageOnDividendDistribution
1043 Reserve balance exceeding percentage of capital stock Concept (Percent) For Period spil:ReserveBalanceExceedingPercentageOfCapitalStock
1044 Percentage of additional corporate income tax on undistributed earnings Concept (Percent) For Period spil:PercentageOfAdditionalCorporateIncomeTaxOnUndistributedEarnings
1045 Undistributed earnings Concept (Monetary) For Period Credit spil:UndistributedEarnings1
1046 Shareholders imputation tax credit Concept (Monetary) As Of Credit spil:ShareholdersImputationTaxCredit
1047 Percentage of shareholders imputation tax credit Concept (Percent) For Period spil:PercentageOfShareholdersImputationTaxCredit
1048 Accrued additional percentage of tax on undistributed earnings Concept (Percent) For Period spil:AccruedAdditionalPercentageOfTaxOnUndistributedEarnings
1049 Undistributed earnings tax percentage Concept (Percent) For Period spil:TaxRateEffectOfUndistributedEarningsAndWithholdingTaxesOnRoyalty
1050 Noncurrent portion of tax payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesNoncurrent
1051 1119 - Disclosure - Retained Earnings - Summary of Distributions (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureRetainedEarningsSummaryOfDistributions
1052 Implied Table Table

*

*

implied:Table
1053 Equity [abstract] Abstract ifrs-full:EquityAbstract
1054 Provision of Legal reserve Concept (Monetary) For Period Debit spil:ProvisionOfLegalReserve
1055 Cash dividends Concept (Monetary) As Of Credit ifrs-full:DividendPayables
1056 Cash dividends, per share Concept (Share) For Period ifrs-full:DividendsRecognisedAsDistributionsToOwnersPerShare
1057 1120 - Disclosure - Other Equity Items - Summary of Other Equity Items (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureOtherEquityItemsSummaryOfOtherEquityItems
1058 Statement of changes in equity [table] Table

*

*

ifrs-full:StatementOfChangesInEquityTable
1059 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1060 Equity [member] Member ifrs-full:EquityMember
1061 Other comprehensive income, unrealized gain on valuation of available-for-sale financial assets [member] Member ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember
1062 Other comprehensive income, exchange difference on translation of foreign financial statements [member] Member ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember
1063 Other comprehensive income, remeasurements of post-employment benefit obligations [member] Member ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlansMember
1064 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
1065 Beginning balance Concept (Monetary) As Of Credit ifrs-full:Equity
1066 Changes in fair value of financial instruments Abstract ifrs-full:AvailableforsaleFinancialAssetsAbstract
1067 Changes in fair value of financial instruments, pretax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxAvailableforsaleFinancialAssets
1068 Change in fair value of financial instruments, tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToAvailableforsaleFinancialAssetsOfOtherComprehensiveIncome
1069 Recognition of changes in fair value of financial instruments in profit or loss Abstract ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeAbstract
1070 Recognition of changes in fair value of financial instruments in profit or loss, pretax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome
1071 Recognition of changes in fair value of financial instruments in profit or loss, tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome
1072 Share of other comprehensive income of associates Abstract ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTaxAbstract
1073 Share of other comprehensive income of associates, pretax Concept (Monetary) For Period Credit ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax
1074 Share of other comprehensive income of associates, tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLoss
1075 Differences in translation - equity method investments Abstract ifrs-full:ExchangeDifferencesOnTranslationAbstract
1076 Differences in translation- equity method investments, pretax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation
1077 Differences in translation- equity method investments, tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome
1078 Other comprehensive income/losses reclassified to profit or loss upon disposal of investments accounted for using the equity method Abstract spil:OtherComprehensiveIncomeLossReclassifiedToProfitOrLossUponDisposalOfInvestmentsAccountedForUsingTheEquityMethodAbstract
1079 Other comprehensive income/losses reclassified to profit or loss upon disposal of investments accounted for using the equity method, pretax Concept (Monetary) For Period Credit spil:OtherComprehensiveIncomeLossReclassifiedToProfitOrLossUponDisposalOfInvestmentsAccountedForUsingTheEquityMethodBeforeTax
1080 Other comprehensive income/losses reclassified to profit or loss upon disposal of investments accounted for using the equity method, tax Concept (Monetary) For Period Debit spil:IncomeTaxRelatingToOtherComprehensiveIncomeLossReclassifiedToProfitOrLossUponDisposalOfInvestmentsAccountedForUsingTheEquityMethod
1081 Remeasurements of post-employment benefit obligations Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTaxAbstract
1082 Remeasurements of post-employment benefit obligations, pretax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
1083 Remeasurements of post-employment benefit obligations, tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome
1084 Ending balance Concept (Monetary) As Of Credit ifrs-full:Equity
1085 1121 - Disclosure - Expenses by Nature - Summary of Employee Benefit Expenses (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureExpensesByNatureSummaryOfEmployeeBenefitExpenses
1086 Implied Table Table

*

*

implied:Table
1087 Expenses by nature [abstract] Abstract ifrs-full:ExpenseByNatureAbstract
1088 Employee benefit expenses Abstract ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract
1089 Salaries and bonuses Concept (Monetary) For Period Debit ifrs-full:WagesAndSalaries
1090 Post employment benefits Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
1091 Directors' remuneration Concept (Monetary) For Period Debit ifrs-full:DirectorsRemunerationExpense
1092 Others Concept (Monetary) For Period Debit ifrs-full:OtherEmployeeExpense
1093 Employee benefit expenses Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
1094 Depreciation and amortization expenses Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1095 1122 - Disclosure - Expenses by Nature - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureExpensesByNatureAdditionalInformation
1096 Implied Table Table

*

*

implied:Table
1097 Expenses by nature [abstract] Abstract ifrs-full:ExpenseByNatureAbstract
1098 Annual profit shared as employee compensation Concept (Percent) For Period spil:EmployeeCompensationDistributionPercentage
1099 Annual profit shared as director's remuneration Concept (Percent) For Period spil:DirectorsRemunerationDistributionPercentage
1100 Accrued employee compensation (bonus) Concept (Monetary) As Of Credit spil:AccruedCompensationCurrent
1101 Accrued directors' remuneration Concept (Monetary) As Of Credit spil:RemunerationToDirectorsPayables
1102 1123 - Disclosure - Other Income and Expenses - Summary of Other Income and Expenses (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureOtherIncomeAndExpensesSummaryOfOtherIncomeAndExpenses
1103 Implied Table Table

*

*

implied:Table
1104 Material income and expense [abstract] Abstract ifrs-full:MaterialIncomeAndExpenseAbstract
1105 Loss on damages and claims Concept (Monetary) For Period Debit spil:LossOnDamagesAndClaims
1106 Gains on disposal of property, plant and equipment and other assets Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
1107 Gains on disposal of non-current assets held for sales Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfNoncurrentAssets
1108 Impairment loss on property, plant and equipment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
1109 Others Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
1110 Other income and expense Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
1111 1124 - Disclosure - Other Gains and Losses, Net - Schedule of Other Gains And Losses Net (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureOtherGainsAndLossesNetScheduleOfOtherGainsAndLossesNet
1112 Implied Table Table

*

*

implied:Table
1113 Material income and expense [abstract] Abstract ifrs-full:MaterialIncomeAndExpenseAbstract
1114 Foreign exchange gain (loss)-net Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
1115 Gains on reversal of impairment loss of non-financial assets Concept (Monetary) For Period Credit ifrs-full:ReversalOfImpairmentLoss
1116 Other gains and losses, net Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
1117 1125 - Disclosure - Income Tax - Income Taxes Recognized in Profit or Loss (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureIncomeTaxIncomeTaxesRecognizedInProfitOrLoss
1118 Implied Table Table

*

*

implied:Table
1119 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
1120 Current income tax expense Abstract ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract
1121 Recognition for the current period Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
1122 Provision of additional 10% tax on undistributed earnings Concept (Monetary) For Period Debit spil:ProvisionOfAdditionalTaxOnUndistributedEarnings
1123 Reversal of additional 10% tax on undistributed earnings due to dividend distribution Concept (Monetary) For Period Credit spil:CurrentReversalOfAdditionalTaxOnUndistributedEarnings
1124 Income tax adjustments for prior years Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod
1125 Current income tax expense Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
1126 Deferred income tax expense Abstract ifrs-full:DeferredTaxExpenseIncomeAbstract
1127 Temporary differences Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
1128 Income tax expense recognized in profit or loss Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1129 1126 - Disclosure - Income Tax - Income Taxes Recognized in Profit or Loss (Parenthetical) (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureIncomeTaxIncomeTaxesRecognizedInProfitOrLossParenthetical
1130 Implied Table Table

*

*

implied:Table
1131 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
1132 Current income tax rate on undistributed earnings Concept (Percent) For Period spil:CurrentIncomeTaxRateOnUndistributedEarnings
1133 Current income tax rate on reversal of undistributed earnings Concept (Percent) For Period spil:CurrentIncomeTaxRateOnReversalOfUndistributedEarnings
1134 1127 - Disclosure - Income Tax - Profit Before Tax Differs from the Theoretical Amount that Would Arise using the Weighted Average Tax Rate (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureIncomeTaxProfitBeforeTaxDiffersFromTheTheoreticalAmountThatWouldAriseUsingTheWeightedAverageTaxRate
1135 Implied Table Table

*

*

implied:Table
1136 Reconciliation of accounting profit multiplied by applicable tax rates [abstract] Abstract ifrs-full:ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract
1137 Income tax expense calculated at the statutory tax rates applicable to respective countries Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
1138 Expense disallowed (deductible income) by tax regulation Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
1139 Tax exempt income by tax regulation Concept (Monetary) For Period Credit ifrs-full:TaxEffectOfRevenuesExemptFromTaxation2011
1140 Temporary difference not recognized as deferred income tax liabilities Concept (Monetary) For Period Debit spil:TaxEffectOfExpenseDeductibleItemsInDeterminingTaxableIncomeAdjustment
1141 Change in assessment of realization of deferred income tax assets Concept (Monetary) For Period Debit ifrs-full:TaxEffectFromChangeInTaxRate
1142 Effect from Alternative Minimum Tax Concept (Monetary) For Period Debit spil:TaxEffectOfAdditionalIncomeTaxUnderAlternativeMinimumTaxAct
1143 Provision of additional 10% tax on undistributed earnings Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
1144 Adjustment: over provision from prior years Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
1145 Deferred tax effect of earnings of subsidiaries Concept (Monetary) For Period Debit spil:DeferredTaxEffectRelatedToEarningsOfSubsidiaries
1146 Income tax expense recognized in profit or loss Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1147 1128 - Disclosure - Income Tax - Profit Before Tax Differs from the Theoretical Amount that Would Arise using the Weighted Average Tax Rate (Parenthetical) (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureIncomeTaxProfitBeforeTaxDiffersFromTheTheoreticalAmountThatWouldAriseUsingTheWeightedAverageTaxRateParenthetical
1148 Implied Table Table

*

*

implied:Table
1149 Reconciliation of accounting profit multiplied by applicable tax rates [abstract] Abstract ifrs-full:ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract
1150 Taxes provided for repatriated undistributed earnings percentage Concept (Percent) For Period spil:TaxesProvidedForRepatriatedUndistributedEarningsPercentage
1151 1129 - Disclosure - Income Tax - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureIncomeTaxAdditionalInformation
1152 Disclosure of Income Tax [Table] Table

*

*

spil:DisclosureOfIncomeTaxTable
1153 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1154 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1155 China [member] Member country:CN
1156 Disclosure of income tax [line items] LineItems spil:DisclosureOfIncomeTaxLineItems
1157 Weighted average statutory tax rates Concept (Percent) For Period spil:WeightedAverageStatutoryIncomeTaxRate
1158 Percentage of income tax effect on dividend distribution for prior year provisions Concept (Percent) For Period spil:TaxRateEffectOfWithholdingTaxOnDividends
1159 Change in net income as a result of tax holiday Concept (Monetary) For Period Credit spil:ChangeInNetIncomeAsResultOfTaxHoliday
1160 Change in net income per share as a result of tax holiday Concept (Share) For Period spil:ChangeInNetIncomePerShareAsResultOfTaxHoliday
1161 Applicable tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
1162 1130 - Disclosure - Income Tax - Income Taxes Recognized In Other Comprehensive Income (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureIncomeTaxIncomeTaxesRecognizedInOtherComprehensiveIncome
1163 Implied Table Table

*

*

implied:Table
1164 Income tax relating to components of other comprehensive income [abstract] Abstract ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAbstract
1165 Change in fair value of financial instruments, tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToAvailableforsaleFinancialAssetsOfOtherComprehensiveIncome
1166 Share of other comprehensive income of associates Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
1167 Exchange difference on translation of foreign financial statements Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome
1168 Remeasurements of post-employment benefit obligation Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome
1169 Total Concept (Monetary) For Period ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
1170 1131 - Disclosure - Income Tax - Changes in Deferred Income Tax Assets and Liabilities (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureIncomeTaxChangesInDeferredIncomeTaxAssetsAndLiabilities
1171 Disclosure of Income Tax [Table] Table

*

*

spil:DisclosureOfIncomeTaxTable
1172 Assets and liabilities [axis] Axis ifrs-full:AssetsAndLiabilitiesAxis
1173 Assets and liabilities [member] Member ifrs-full:AssetsAndLiabilitiesMember
1174 Deferred Income Tax Assets [Member] Member spil:DeferredIncomeTaxAssetsMember
1175 Deferred income tax liabilities [Member] Member spil:DeferredIncomeTaxLiabilitiesMember
1176 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1177 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
1178 Deferred tax assets convertible bonds [member] Member spil:DeferredTaxAssetsConvertibleBondsMember
1179 Post employment benefit obligations [member] Member spil:PostEmploymentBenefitObligationsMember
1180 Unrealized losses on inventories [member] Member spil:UnrealizedLossesOnInventoriesMember
1181 Provisions [member] Member spil:ProvisionsMember
1182 Compensated absences payable [member] Member spil:CompensatedAbsencesPayableMember
1183 Other temporary differences [member] Member ifrs-full:OtherTemporaryDifferencesMember
1184 Gains from investment for using equity method [member] Member ifrs-full:InvestmentsAccountedForUsingEquityMethodMember
1185 Unrealized gain on available-for-sale financial assets [member] Member ifrs-full:FinancialAssetsAvailableforsaleCategoryMember
1186 Unrealized gain on property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1187 Unrealized sales allowance [member] Member spil:DeferredTaxAssetsUnrealizedSalesAllowanceMember
1188 Unrealized losses on financial liabilities at fair value through profit or loss [member] Member ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
1189 Reclassified items [axis] Axis ifrs-full:ReclassifiedItemsAxis
1190 Reclassified items [member] Member ifrs-full:ReclassifiedItemsMember
1191 After certain reclassifications [member] Member spil:OtherTemporaryDifferencesAfterCertainReclassificationsMember
1192 Disclosure of income tax [line items] LineItems spil:DisclosureOfIncomeTaxLineItems
1193 Beginning balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
1194 Profit or Loss Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
1195 Other Comprehensive Income Concept (Monetary) For Period ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
1196 Effect of Foreign Currency Exchange Differences Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset
1197 Ending balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
1198 1132 - Disclosure - Income Tax - Unrecognized Deferred Income Tax Liabilities Relating to Taxable Temporary Differences for Investments in Foreign Subsidiaries (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureIncomeTaxUnrecognizedDeferredIncomeTaxLiabilitiesRelatingToTaxableTemporaryDifferencesForInvestmentsInForeignSubsidiaries
1199 Implied Table Table

*

*

implied:Table
1200 Disclosure of temporary difference, unused tax losses and unused tax credits [abstract] Abstract ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAbstract
1201 Investment in foreign subsidiaries Concept (Monetary) As Of ifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures
1202 1133 - Disclosure - Earnings Per Share (EPS) - Schedule of Earnings Per Share (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureEarningsPerShareEPSScheduleOfEarningsPerShare
1203 Implied Table Table

*

*

implied:Table
1204 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
1205 Income after tax Abstract ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityAbstract
1206 Net income Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity
1207 Dilutive effect of convertible bonds Concept (Monetary) For Period Credit spil:DilutiveEffectOfConvertibleBonds
1208 Diluted earnings per share Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects
1209 Weighted average outstanding common stock Abstract ifrs-full:WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract
1210 Net income Concept (Shares) For Period ifrs-full:WeightedAverageShares
1211 Dilutive effect of employee compensation Concept (Shares) For Period ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
1212 Dilutive effect of convertible bonds Concept (Shares) For Period ifrs-full:DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares
1213 Diluted earnings per share Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
1214 Earnings per share Abstract ifrs-full:BasicEarningsPerShareAbstract
1215 Net income Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
1216 Diluted earnings per share Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
1217 1134 - Disclosure - Supplemental Cash Flow Information - Summary of Investing Activities (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureSupplementalCashFlowInformationSummaryOfInvestingActivities
1218 Implied Table Table

*

*

implied:Table
1219 Non Cash Transactions [abstract] Abstract spil:NonCashTransactionsAbstract
1220 Purchase of property, plant and equipment Concept (Monetary) For Period Debit spil:PurchaseOfPropertyPlantAndEquipment
1221 (Decrease)/ increase in prepayment for equipment Concept (Monetary) For Period Debit spil:IncreaseDecreaseInPrepaymentForEquipment
1222 Decrease/ (increase) in equipment payable, net Concept (Monetary) For Period Debit spil:IncreaseDecreaseInEquipmentPayableNet
1223 (Increase)/ decrease in notes payable of construction Concept (Monetary) For Period Debit spil:IncreaseDecreaseInNotesPayableOfConstruction
1224 Effect of foreign currency exchange Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesInvestmentProperty
1225 Cash payment for acquisition of property, plant, and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
1226 1135 - Disclosure - Supplemental Cash Flow Information - Summary of Reconciliation of Liabilities Arising from Financing Activities (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureSupplementalCashFlowInformationSummaryOfReconciliationOfLiabilitiesArisingFromFinancingActivities
1227 Disclosure of reconciliation of liabilities arising from financing activities [table] Table

*

*

ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable
1228 Liabilities arising from financing activities [axis] Axis ifrs-full:LiabilitiesArisingFromFinancingActivitiesAxis
1229 Liabilities arising from financing activities [member] Member ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember
1230 Long-term loans (include the current portion) [member] Member ifrs-full:LongtermBorrowingsMember
1231 Short-term loans [member] Member ifrs-full:ShorttermBorrowingsMember
1232 Convertible bonds (Include the current portion) [member] Member spil:ConvertibleBondsMember
1233 Refundable deposits [member] Member spil:RefundableDepositsMember
1234 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
1235 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
1236 Unrealized losses on financial liabilities at fair value through profit or loss [member] Member ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
1237 Disclosure of reconciliation of liabilities arising from financing activities [line items] LineItems ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems
1238 Beginning balance Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
1239 Cash flows Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities
1240 Foreign exchange movement Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities
1241 Fair Value Changes Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInFairValuesLiabilitiesArisingFromFinancingActivities
1242 Amortization of discount Concept (Monetary) For Period Credit spil:IncreaseDecreaseThroughAmortizationOfDiscountLiabilitiesArisingFromFinancingActivities
1243 Amortization of syndicated loans fee Concept (Monetary) For Period Credit spil:IncreaseDecreaseInAmortisationCostsLiabilitiesArisingFromFinancingActivities
1244 Ending balance Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
1245 1136 - Disclosure - Supplemental Cash Flow Information - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureSupplementalCashFlowInformationAdditionalInformation
1246 Disclosure of Non Cash Investing Activities [Table] Table

*

*

spil:DisclosureOfNonCashInvestingActivitiesTable
1247 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1248 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1249 ChipMOS Technologies Inc., [member] Member spil:ChipMosTechnologiesIncMember
1250 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1251 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1252 ASM Advanced Packaging Materials Pte. Ltd. [member] Member spil:ASMAdvancedPackagingMaterialsPteLtdMember
1253 Disclosure of non cash investing activities [line items] LineItems spil:DisclosureOfNonCashInvestingActivitiesLineItems
1254 Cash received for each share in merger agreement Concept (Share) For Period spil:MergerAgreementCashPerShare
1255 Number of ADS received for each share in merger agreement Concept (Shares) As Of spil:NumberOfCommonSharesReceived
1256 Number of common shares for each ADS Concept (Shares) As Of spil:NumberOfCommonSharesRepresentedByADSs
1257 Interest distributed as capital return Concept (Percent) For Period spil:InterestDistributedAsCapitalReturn
1258 1137 - Disclosure - Supplemental Cash Flow Information - Summary of Non-Cash Investment Activities (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureSupplementalCashFlowInformationSummaryOfNonCashInvestmentActivities
1259 Disclosure of Non Cash Investing Activities [Table] Table

*

*

spil:DisclosureOfNonCashInvestingActivitiesTable
1260 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1261 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1262 ChipMOS Technologies Inc., [member] Member spil:ChipMosTechnologiesIncMember
1263 ChipMOS Technologies (Bermuda) Ltd. [member] Member spil:ChipmosTechnologiesBermudaLtdMember
1264 Disclosure of non cash investing activities [line items] LineItems spil:DisclosureOfNonCashInvestingActivitiesLineItems
1265 Available- for-sale financial assets, non-current Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAvailableforsale
1266 Decrease in available-for-sale financial assets, non-current Concept (Monetary) As Of Debit spil:DecreaseInAvailableForSaleFinancialAssetsNoncurrent
1267 Other income Concept (Monetary) For Period Credit spil:AvailableForSaleFinancialAssetsOtherIncome
1268 Increase in other receivables Concept (Monetary) As Of Debit spil:AvailableForSaleFinancialAssetsIncreaseInOtherReceivables
1269 1138 - Disclosure - Supplemental Cash Flow Information - Summary of Capital Return (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureSupplementalCashFlowInformationSummaryOfCapitalReturn
1270 Disclosure of Non Cash Investing Activities [Table] Table

*

*

spil:DisclosureOfNonCashInvestingActivitiesTable
1271 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1272 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1273 ASM Advanced Packaging Materials Pte. Ltd. [member] Member spil:ASMAdvancedPackagingMaterialsPteLtdMember
1274 Interconnect [member] Member spil:InterconnectMember
1275 Disclosure of non cash investing activities [line items] LineItems spil:DisclosureOfNonCashInvestingActivitiesLineItems
1276 Acquisition of investments accounted for using the equity method-AAPM Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod
1277 Decrease in difference on translation (Show as other equity item) Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesInvestmentProperty
1278 Decrease in deferred tax liabilities Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInDeferredTaxLiabilityAsset
1279 Decrease in investments accounted for using the equity method Concept (Monetary) For Period Credit spil:IncreaseDecreaseInInvestmentsInAssociatesAccountedForUsingEquityMethod
1280 Gains on disposal of investments Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfInvestments
1281 Capital return Concept (Monetary) For Period Debit spil:CapitalReductionsInInvestmentsInAssociates
1282 1139 - Disclosure - Operating Leases - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureOperatingLeasesAdditionalInformation
1283 Implied Table Table

*

*

implied:Table
1284 Disclosure of finance lease and operating lease by lessee [abstract] Abstract ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract
1285 Rental expense Concept (Monetary) For Period Debit ifrs-full:RentalExpense
1286 1140 - Disclosure - Related Party Transactions - Schedule of Transactions Between Company and Other Related Parties (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureRelatedPartyTransactionsScheduleOfTransactionsBetweenCompanyAndOtherRelatedParties
1287 Disclosure of transactions between related parties [table] Table

*

*

ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1288 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1289 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1290 Associates [member] Member ifrs-full:AssociatesMember
1291 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1292 Shares Concept (Shares) As Of spil:FinancialAssetsAvailableSaleDisposedShares
1293 Available-for-sale financial assets, non-current Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAvailableforsale
1294 Gains on disposal of investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfInvestments
1295 1141 - Disclosure - Related Party Transactions - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureRelatedPartyTransactionsAdditionalInformation
1296 Disclosure of transactions between related parties [table] Table

*

*

ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1297 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1298 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1299 Advanced Semiconductor Engineering, Inc. [member] Member spil:AdvancedSemiconductorEngineeringIncMember
1300 Collaboration arrangements [axis] Axis spil:CollaborationArrangementsAxis
1301 Collaboration arrangements [domain] Member spil:CollaborationArrangementsDomain
1302 Joint share exchange agreement [member] Member spil:ShareExchangeAgreementMember
1303 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1304 Exchange price for common share Concept (Share) For Period spil:ExchangePriceForCommonShare
1305 Common share exchange ratio Concept (Share) For Period spil:CommonShareExchangeRate
1306 Adjusted exchange price per share Concept (Share) For Period spil:AdjustedExchangePricePerShare
1307 Restriction period Concept (xbrli:durationItemType) For Period spil:RestrictionPeriodForRelatedPartyTransaction
1308 Agreement term Concept (Text/String) For Period spil:AgreementExpiryTerm
1309 1142 - Disclosure - Related Party Transactions - Schedule of Personnel Compensations to Directors, Supervisors, and Managements (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureRelatedPartyTransactionsScheduleOfPersonnelCompensationsToDirectorsSupervisorsAndManagements
1310 Implied Table Table

*

*

implied:Table
1311 Disclosure of transactions between related parties [abstract] Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
1312 Short-term employee benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
1313 Post-employment benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
1314 Personnel compensations Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
1315 1143 - Disclosure - Assets Pledged as Collateral - Summary of Assets Pledged as Collateral (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureAssetsPledgedAsCollateralSummaryOfAssetsPledgedAsCollateral
1316 Implied Table Table

*

*

implied:Table
1317 Disclosure assets pledged as collateral [abstract] Abstract spil:DisclosureAssetsPledgedAsCollateralAbstract
1318 Time deposits (shown as other current assets- other) Concept (Monetary) As Of Debit spil:TimeDepositPledgedAsCollateral
1319 Subject of collateral Concept (Text/String) For Period ifrs-full:DescriptionOfTermAndConditionsOfFinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities
1320 1144 - Disclosure - Commitments and Contingencies - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformation
1321 Commitments and contingencies [Table] Table

*

*

spil:CommitmentsAndContingenciesTable
1322 Range [axis] Axis ifrs-full:RangeAxis
1323 Ranges [member] Member ifrs-full:RangesMember
1324 Top of range [member] Member ifrs-full:TopOfRangeMember
1325 Commitments and contingencies [line items] LineItems spil:CommitmentsAndContingenciesLineItems
1326 Assumption of aggregated transaction amount of the entire business or assets from others excluded Concept (Monetary) As Of Debit spil:AssumptionOfAggregatedTransactionAmountOfTheEntireBusinessOrAssetsFromOthers
1327 Business acquisition Concept (Percent) As Of spil:BusinessAcquisitionSaleOfAssetsSubsidiariesPercentage
1328 Business acquisition disposal Concept (Percent) As Of spil:BusinessAcquisitionDisposalOfInterestOrBusinessesSubsidiariesPercentage
1329 Exclusive licensing of all or material patents or technologies Concept (Percent) As Of spil:BusinessAcquisitionLicensingOfPatentAndTechnologiesSubsidiariesPercentage
1330 Termination fee Concept (Monetary) For Period Debit spil:TerminationFee
1331 Significant agreements, amount Concept (Monetary) As Of Credit spil:ContractualAmount
1332 Significant agreements, unpaid Concept (Monetary) As Of Credit spil:ContractualAmountUnpaid
1333 1145 - Disclosure - Commitments and Contingencies - Summary of Future Minimum Lease Payments Under Non-cancellable Operating Leases (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfFutureMinimumLeasePaymentsUnderNoncancellableOperatingLeases
1334 Disclosure of finance lease and operating lease by lessee [table] Table

*

*

ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
1335 Maturity [axis] Axis ifrs-full:MaturityAxis
1336 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1337 Within 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
1338 1- 5 year(s) [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
1339 Over 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
1340 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
1341 Future minimum lease payments Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
1342 1146 - Disclosure - Significant Event After the Reporting Period - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureSignificantEventAfterTheReportingPeriodAdditionalInformation
1343 Disclosure of Events After Reporting Period [Table] Table

*

*

spil:DisclosureOfEventsAfterReportingPeriodTable
1344 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
1345 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
1346 Disposal of major subsidiary [member] Member ifrs-full:DisposalOfMajorSubsidiaryMember
1347 Changes in tax rates or tax laws enacted or announced [member] Member ifrs-full:ChangesInTaxRatesOrTaxLawsEnactedOrAnnouncedMember
1348 Legal entity [axis] Axis dei:LegalEntityAxis
1349 Entity [Domain] Member dei:EntityDomain
1350 SPIL (Cayman) Holding Limited [member] Member spil:SPILCaymanHoldingLimitedMember
1351 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1352 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1353 Siliconware Technology (Suzhou) Limited [member] Member spil:SiliconwareTechnologySuzhouLimitedMember
1354 Disclosure of events after reporting period [line items] LineItems spil:DisclosureOfEventsAfterReportingPeriodLineItems
1355 Percentage of ownership disposed in subsidiary Concept (Percent) As Of spil:PercentageOfOwnershipSharesSoldInSubsidiary
1356 Proceeds from ownership interest disposed Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
1357 Corporate income tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
1358 Undistributed earnings rate Concept (Percent) For Period spil:UndistributedEarningsRate
1359 1147 - Disclosure - Financial Risk Management - Summary of Exposure to Foreign Exchange Risks (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureFinancialRiskManagementSummaryOfExposureToForeignExchangeRisks
1360 Disclosure of detailed information about financial instruments [table] Table

*

*

ifrs-full:DisclosureOfFinancialInstrumentsTable
1361 Assets and liabilities [axis] Axis ifrs-full:AssetsAndLiabilitiesAxis
1362 Assets and liabilities [member] Member ifrs-full:AssetsAndLiabilitiesMember
1363 Monetary assets [member] Member spil:MonetaryAssetsMember
1364 Nonmonetary assets [member] Member spil:NonMonetaryAssetsMember
1365 Gains from investment for using equity method [member] Member ifrs-full:InvestmentsAccountedForUsingEquityMethodMember
1366 Monetary liabilities [member] Member spil:MonetaryLiabilitiesMember
1367 Currency [Axis] Axis us-gaap:CurrencyAxis
1368 All Currencies [Domain] Member currency:AllCurrenciesDomain
1369 USD:NTD [member] Member spil:UsDollarToNewTaiwanDollarMember
1370 USD:RMB [member] Member spil:UsDollarToChineseYuanMember
1371 JPY:NTD [member] Member spil:JapaneseYenToNewTaiwanDollarMember
1372 JPY:RMB [member] Member spil:JapaneseYenToChineseYuanMember
1373 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1374 Investments accounted for using the equity method Concept (Monetary) As Of Debit ifrs-full:InvestmentAccountedForUsingEquityMethod
1375 Exchange rates Concept (Decimal) As Of ifrs-full:ClosingForeignExchangeRate
1376 Sensitivity analysis, Movement Concept (Percent) As Of spil:RiskExposureAssociatedWithInstrumentsSharingCharacteristicPercentageChangeInRisk
1377 Sensitivity analysis, Impact to profit and loss before tax Concept (Monetary) As Of ifrs-full:RiskExposureAssociatedWithInstrumentsSharingCharacteristic
1378 Financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1379 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1380 1148 - Disclosure - Financial Risk Management - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureFinancialRiskManagementAdditionalInformation
1381 Disclosure of detailed information about financial instruments [table] Table

*

*

ifrs-full:DisclosureOfFinancialInstrumentsTable
1382 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
1383 Risks [member] Member ifrs-full:TypesOfRisksMember
1384 Price risk [member] Member spil:PriceRiskMember
1385 Interest rate risk [member] Member ifrs-full:InterestRateRiskMember
1386 Credit risk [member] Member ifrs-full:CreditRiskMember
1387 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1388 Percentage of increase/decrease in risk Concept (Percent) As Of spil:RiskExposureAssociatedWithInstrumentsSharingCharacteristicPercentageChangeInRisk
1389 Effect of increase/decrease in risk on income before tax/other comprehensive income Concept (Monetary) As Of ifrs-full:RiskExposureAssociatedWithInstrumentsSharingCharacteristic
1390 Financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1391 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1392 Number of largest customers Concept (Decimal) For Period spil:NumberOfLargestCustomers
1393 Percentage of accounts receivable Concept (Percent) As Of spil:PercentageOfAccountsReceivable
1394 1149 - Disclosure - Financial Risk Management - Summary of Aging Analysis of Accounts Receivable (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureFinancialRiskManagementSummaryOfAgingAnalysisOfAccountsReceivable
1395 Disclosure of financial assets that are either past due or impaired [table] Table

*

*

ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedTable
1396 Impairment of financial assets [axis] Axis ifrs-full:ImpairmentOfFinancialAssetsAxis
1397 Entity's total for impairment of financial assets [member] Member ifrs-full:EntitysTotalForImpairmentOfFinancialAssetsMember
1398 Financial assets past due [member] Member spil:FinancialAssetsPastDueMember
1399 Financial assets impaired [member] Member ifrs-full:FinancialAssetsImpairedMember
1400 Financial assets past due but not impaired [member] Member ifrs-full:FinancialAssetsPastDueButNotImpairedMember
1401 Past due status [axis] Axis ifrs-full:PastDueStatusAxis
1402 Past due status [member] Member ifrs-full:PastDueStatusMember
1403 1- 90 days [member] Member ifrs-full:NotLaterThanThreeMonthsMember
1404 91- 180 days [member] Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanSixMonthsMember
1405 Over 180 days [member] Member ifrs-full:LaterThanSixMonthsMember
1406 Disclosure of financial assets that are either past due or impaired [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedLineItems
1407 Accounts receivables, net Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
1408 1150 - Disclosure - Financial Risk Management - Summary of Aging Analysis of Accounts Receivable (Parenthetical) (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureFinancialRiskManagementSummaryOfAgingAnalysisOfAccountsReceivableParenthetical
1409 Implied Table Table

*

*

implied:Table
1410 Disclosure of financial assets that are either past due or impaired [abstract] Abstract ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedAbstract
1411 Impairment loss on accounts receivable Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossRecognisedInProfitOrLossTradeReceivables
1412 1151 - Disclosure - Financial Risk Management - Summary of Financial Liabilities (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureFinancialRiskManagementSummaryOfFinancialLiabilities
1413 Disclosure of maturity analysis for non-derivative financial liabilities [table] Table

*

*

ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable
1414 Maturity [axis] Axis ifrs-full:MaturityAxis
1415 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1416 Within 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
1417 1- 2 year(s) [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1418 2-3 years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1419 Over 3 years [member] Member ifrs-full:LaterThanThreeYearsMember
1420 Disclosure of maturity analysis for non-derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems
1421 Short-term Loans Concept (Monetary) As Of Credit spil:ShortTermBorrowingsUndiscountedCashFlows
1422 Accounts Payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesUndiscountedCashFlows
1423 Other Payables Concept (Monetary) As Of Credit spil:OtherPayablesUndiscountedCashFlows
1424 Other Current Liabilities - Others Concept (Monetary) As Of Credit spil:OtherCurrentLiabilitiesUndiscountedCashFlows
1425 Convertible Bonds (include the current portion) Concept (Monetary) As Of Credit ifrs-full:BondsIssuedUndiscountedCashFlows
1426 Long-term Loans (include the current portion) Concept (Monetary) As Of Credit ifrs-full:BankBorrowingsUndiscountedCashFlows
1427 Other Non-Current Liabilities Concept (Monetary) As Of Credit spil:OtherNoncurrentLiabilitiesUndiscountedCashFlows
1428 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
1429 1152 - Disclosure - Fair Value Information on Financial Instruments - Summary of Convertible Bonds (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureFairValueInformationOnFinancialInstrumentsSummaryOfConvertibleBonds
1430 Disclosure of detailed information about financial instruments [table] Table

*

*

ifrs-full:DisclosureOfFinancialInstrumentsTable
1431 Measurement [axis] Axis ifrs-full:MeasurementAxis
1432 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
1433 At fair value [member] Member ifrs-full:AtFairValueMember
1434 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1435 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1436 Level 3 [member] Member ifrs-full:Level3OfFairValueHierarchyMember
1437 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1438 Convertible bonds Concept (Monetary) As Of Credit ifrs-full:BondsIssued
1439 1153 - Disclosure - Fair Value Information on Financial Instruments - Summary of Financial Instruments Measured at Fair Value (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureFairValueInformationOnFinancialInstrumentsSummaryOfFinancialInstrumentsMeasuredAtFairValue
1440 Disclosure of detailed information about financial instruments [table] Table

*

*

ifrs-full:DisclosureOfFinancialInstrumentsTable
1441 Measurement [axis] Axis ifrs-full:MeasurementAxis
1442 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
1443 Recurring fair value measurement [member] Member ifrs-full:RecurringFairValueMeasurementMember
1444 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1445 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1446 Level 1 [member] Member ifrs-full:Level1OfFairValueHierarchyMember
1447 Level 2 [member] Member ifrs-full:Level2OfFairValueHierarchyMember
1448 Level 3 [member] Member ifrs-full:Level3OfFairValueHierarchyMember
1449 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1450 Available-for-sale financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAvailableforsale
1451 Financial liability at fair value through profit or loss, current Concept (Monetary) As Of Credit ifrs-full:CurrentFinancialLiabilitiesAtFairValueThroughProfitOrLoss
1452 1154 - Disclosure - Fair Value Information on Financial Instruments - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureFairValueInformationOnFinancialInstrumentsAdditionalInformation
1453 Disclosure of detailed information about financial instruments [table] Table

*

*

ifrs-full:DisclosureOfFinancialInstrumentsTable
1454 Measurement [axis] Axis ifrs-full:MeasurementAxis
1455 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
1456 Non-recurring fair value measurement [member] Member ifrs-full:NonrecurringFairValueMeasurementMember
1457 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1458 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1459 Level 3 [member] Member ifrs-full:Level3OfFairValueHierarchyMember
1460 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1461 Volatility Concept (Percent) For Period ifrs-full:HistoricalVolatilityForSharesSignificantUnobservableInputsLiabilities
1462 Losses/ (Gains) on financial liabilities at fair value through profit or loss Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialLiabilitiesAtFairValueThroughProfitOrLoss
1463 Increase in the value of stock market price Concept (Percent) For Period spil:IncreaseInValueOfStockMarketPrice
1464 Decrease in income before tax as a effect of increase in market price Concept (Monetary) For Period Debit spil:DecreaseInIncomeBeforeTaxAsAEffectOfIncreaseInMarketPrice
1465 Decrease in the value of stock market price Concept (Percent) For Period spil:DecreaseInValueOfStockMarketPrice
1466 Increase in income before tax as a effect of decrease in market price Concept (Monetary) For Period Credit spil:IncreaseInIncomeBeforeTaxAsAEffectOfDecreaseInMarketPrice
1467 Increase in the expected volatility Concept (Percent) For Period spil:IncreaseInExpectedVolatility
1468 Decrease in income before tax as a effect of Increase in expected volatility Concept (Monetary) For Period Debit spil:DecreaseInIncomeBeforeTaxAsAEffectOfIncreaseInExpectedVolatility
1469 Decrease in the expected volatility Concept (Percent) For Period spil:DecreaseInExpectedVolatility
1470 Increase in income before tax as a effect of decrease in expected volatility Concept (Monetary) For Period Credit spil:IncreaseInIncomeBeforeTaxAsAEffectOfDecreaseInExpectedVolatility
1471 1155 - Disclosure - Fair Value Information on Financial Instruments - Summary of Reconciliation of Level 3 Fair Value Measurements of Financial Liabilities (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureFairValueInformationOnFinancialInstrumentsSummaryOfReconciliationOfLevel3FairValueMeasurementsOfFinancialLiabilities
1472 Disclosure of detailed information about financial instruments [table] Table

*

*

ifrs-full:DisclosureOfFinancialInstrumentsTable
1473 Measurement [axis] Axis ifrs-full:MeasurementAxis
1474 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
1475 Non-recurring fair value measurement [member] Member ifrs-full:NonrecurringFairValueMeasurementMember
1476 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1477 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1478 Level 3 [member] Member ifrs-full:Level3OfFairValueHierarchyMember
1479 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1480 Beginning balance Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1481 Losses/ (Gains) on financial liabilities at fair value through profit or loss Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialLiabilitiesAtFairValueThroughProfitOrLoss
1482 Ending balance Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1483 1156 - Disclosure - Segment Information - Additional Information (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureSegmentInformationAdditionalInformation
1484 Disclosure of major customers [table] Table

*

*

ifrs-full:DisclosureOfMajorCustomersTable
1485 Major customers [axis] Axis ifrs-full:MajorCustomersAxis
1486 Customers [member] Member ifrs-full:MajorCustomersMember
1487 Customer A [member] Member spil:CustomerAMember
1488 Customer B [member] Member spil:CustomerBMember
1489 Disclosure of major customers [line items] LineItems ifrs-full:DisclosureOfMajorCustomersLineItems
1490 Operating segment Concept (Integer) For Period spil:NumberOfOperatingSegments1
1491 Reportable segment Concept (Integer) For Period spil:NumberOfReportableSegments1
1492 Operating Revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
1493 1157 - Disclosure - Segment Information - Summary of Breakdown of Revenue From Different Products and Services (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureSegmentInformationSummaryOfBreakdownOfRevenueFromDifferentProductsAndServices
1494 Disclosure of products and services [table] Table

*

*

ifrs-full:DisclosureOfProductsAndServicesTable
1495 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
1496 Products and services [member] Member ifrs-full:ProductsAndServicesMember
1497 Packaging [member] Member spil:PackagingSegmentMember
1498 Testing [member] Member spil:TestingSegmentMember
1499 Other [member] Member spil:OtherSegmentMember
1500 Disclosure of products and services [line items] LineItems ifrs-full:DisclosureOfProductsAndServicesLineItems
1501 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1502 1158 - Disclosure - Segment Information - Summary of Operations in Different Geographic Areas (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureSegmentInformationSummaryOfOperationsInDifferentGeographicAreas
1503 Disclosure of products and services [table] Table

*

*

ifrs-full:DisclosureOfProductsAndServicesTable
1504 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1505 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1506 United States [member] Member country:US
1507 China [member] Member country:CN
1508 Taiwan [member] Member country:TW
1509 Europe [member] Member us-gaap:EuropeMember
1510 Other Countries [member] Member spil:OtherCountriesMember
1511 Disclosure of products and services [line items] LineItems ifrs-full:DisclosureOfProductsAndServicesLineItems
1512 Revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
1513 Noncurrent Assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContracts
1514 1159 - Disclosure - Valuation and Qualifying Account - Valuation and Qualifying Account (Detail) Network

*

*

http://www.spil.com.tw/taxonomy/role/DisclosureValuationAndQualifyingAccountValuationAndQualifyingAccount
1515 Valuation and Qualifying Accounts Disclosure [Table] Table

*

*

us-gaap:ValuationAndQualifyingAccountsDisclosureTable
1516 Valuation allowances and reserves type [axis] Axis us-gaap:ValuationAllowancesAndReservesTypeAxis
1517 Valuation Allowances and Reserves [Domain] Member us-gaap:ValuationAllowancesAndReservesDomain
1518 Allowance for doubtful accounts [member] Member us-gaap:AllowanceForDoubtfulAccountsMember
1519 Allowance for sale discounts [member] Member spil:AllowanceForSaleDiscountsMember
1520 Allowance for loss on obsolescence and decline in market value of inventory [member] Member spil:AllowanceForLossOnObsolescenceAndDeclineInMarketValueOfInventoryMember
1521 Allowance for loss on idle assets [member] Member spil:AllowanceForLossOnIdleAssetsMember
1522 Valuation and qualifying accounts disclosure [line items] LineItems us-gaap:ValuationAndQualifyingAccountsDisclosureLineItems
1523 Balance at beginning of period Concept (Monetary) As Of Credit us-gaap:ValuationAllowancesAndReservesBalance
1524 Additions Charged to Expense Concept (Monetary) For Period Credit us-gaap:ValuationAllowancesAndReservesChargedToCostAndExpense
1525 Deductions Write-offs Concept (Monetary) For Period Debit us-gaap:ValuationAllowancesAndReservesDeductions
1526 Exchange difference on translation of foreign financial statement Concept (Monetary) For Period Credit spil:ValuationAllowancesAndReservesExchangeDifferenceOnTranslationsOfForeignFinancialStatements
1527 Balance at end of period Concept (Monetary) As Of Credit us-gaap:ValuationAllowancesAndReservesBalance

*

*