2.0.0.10 false Consolidated Statements of Income 105 - Statement - Consolidated Statements of Income true false In Millions, except Per Share data false false 1 KRW ₩ false false iso4217_KRW Standard http://www.xbrl.org/2003/iso4217 KRW iso4217 0 iso4217_KRW_per_shares Divide http://www.xbrl.org/2003/iso4217 KRW iso4217 http://www.xbrl.org/2003/instance shares 0 false 2 USD $ false false iso4217_USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 iso4217_USD_per_shares Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares 0 false 3 usd ₩ false false iso4217_KRW Standard http://www.xbrl.org/2003/iso4217 KRW iso4217 0 iso4217_KRW_per_shares Divide http://www.xbrl.org/2003/iso4217 KRW iso4217 http://www.xbrl.org/2003/instance shares 0 false 4 usd ₩ false false iso4217_KRW Standard http://www.xbrl.org/2003/iso4217 KRW iso4217 0 iso4217_KRW_per_shares Divide http://www.xbrl.org/2003/iso4217 KRW iso4217 http://www.xbrl.org/2003/instance shares 0 5 Sales (note 22) 3 us-gaap_SalesRevenueNetAbstract us-gaap true na duration string No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false No definition available. false 6 Related parties 4 us-gaap_RevenueFromRelatedParties us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 true true false false 7589663000000 7589663 false false false 2 true true false false 6522290000 6522 false false false 3 true true false false 6401173000000 6401173 false false false 4 true true false false 5475969000000 5475969 false false false Revenues arising from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's' management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 57 -Paragraph 2 -Subparagraph c Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 07 -Paragraph b -Subparagraph 1 -Article 6 false 7 Others 4 us-gaap_OtherSalesRevenueNet us-gaap true credit duration monetary No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 12448039000000 12448039 false false false 2 false true false false 10697408000 10697 false false false 3 false true false false 9872945000000 9872945 false false false 4 false true false false 8875997000000 8875997 false false false Revenues from the sale of other goods or rendering of other services, not elsewhere specified in the taxonomy; net of (reduced by) sales adjustments, returns, allowances, and discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 false 8 Sales Revenue, Net, Total 4 us-gaap_SalesRevenueNet us-gaap true credit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 20037702000000 20037702 false false false 2 false true false false 17219698000 17220 false false false 3 false true false false 16274118000000 16274118 false false false 4 false true false false 14351966000000 14351966 false false false Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 true 9 Cost of sales 3 us-gaap_CostOfGoodsAndServicesSold us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 17824767000000 17824767 false false false 2 false true false false 15317979000 15318 false false false 3 false true false false 13609094000000 13609094 false false false 4 false true false false 12072257000000 12072257 false false false The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 false 10 Gross profit 3 us-gaap_GrossProfit us-gaap true credit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 2212935000000 2212935 false false false 2 false true false false 1901719000 1902 false false false 3 false true false false 2665024000000 2665024 false false false 4 false true false false 2279709000000 2279709 false false false Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. No authoritative reference available. true 11 Selling, general and administrative expenses 3 us-gaap_SellingGeneralAndAdministrativeExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 1192071000000 1192071 false false false 2 false true false false 1024425000 1024 false false false 3 false true false false 895919000000 895919 false false false 4 false true false false 801406000000 801406 false false false The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 4 -Paragraph 5A false 12 Antitrust (note 19) 3 us-gaap_LegalFees us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 325784000000 325784 false false false 2 false true false false 279967000 280 false false false 3 false true false false 534800000000 534800 false false false 4 false false false false 0 0 false false false The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9 false 13 Operating income 3 us-gaap_OperatingIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 695080000000 695080 false false false 2 false true false false 597327000 597 false false false 3 false true false false 1234305000000 1234305 false false false 4 false true false false 1478303000000 1478303 false false false The net result for the period of deducting operating expenses from operating revenues. No authoritative reference available. true 14 Other income (expense) 3 us-gaap_NonoperatingIncomeExpenseAbstract us-gaap true na duration string No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false No definition available. false 15 Interest income 4 us-gaap_InvestmentIncomeInterest us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 129332000000 129332 false false false 2 false true false false 111143000 111 false false false 3 false true false false 212651000000 212651 false false false 4 false true false false 58348000000 58348 false false false Income derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time value of money or transactions in which the payments are for the use or forbearance of money. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 14 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 false 16 Interest expense 4 us-gaap_InterestExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -124948000000 -124948 false false false 2 false true false false -107376000 -107 false false false 3 false true false false -152197000000 -152197 false false false 4 false true false false -206670000000 -206670 false false false The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 21 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 9 -Subsection II Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 false 17 Foreign exchange gain (loss), net 4 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 270676000000 270676 false false false 2 false true false false 232609000 233 false false false 3 false true false false -242748000000 -242748 false false false 4 false true false false 71046000000 71046 false false false The aggregate foreign currency transaction gain or loss (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains or losses may be disclosed as dealer gains or losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 52 -Paragraph 30 false 18 Rental income 4 us-gaap_RentalIncomeNonoperating us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 4116000000 4116 false false false 2 false true false false 3537000 4 false false false 3 false true false false 3203000000 3203 false false false 4 false true false false 3796000000 3796 false false false Income earned by providing the use of assets to an outside party in exchange for a payment or series of payments that is nonoperating in nature. No authoritative reference available. false 19 Legal settlement (note 19) 4 us-gaap_GainLossRelatedToLitigationSettlement us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false true false false 146606000000 146606 false false false The net proceeds or assets obtained in excess of (less than) the net carrying amount of assets recorded, or assets distributed and liabilities assumed less than (in excess of) litigation reserves extinguished, in settlement of a litigation matter. Represents (for other than an insurance entity in its normal claims settlement process), the amount of income (expense) recognized in the period to settle pending or threatened litigation and insurance claims. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 false 20 Gain (loss) from redemption of debentures, net (note 13) 4 us-gaap_GainsLossesOnRestructuringOfDebt us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false -173000000 -173 false false false 2 false true false false -149000 0 false false false 3 false true false false 1140000000 1140 false false false 4 false true false false -17632000000 -17632 false false false For a debtor, the aggregate gain or loss recognized on the restructuring of payables arises from the difference between the book value of the debt before the restructuring and the fair value of the payments on the debt after restructuring is complete. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 15 -Paragraph 25 -Subparagraph b false 21 Others, net 4 us-gaap_OtherNonoperatingIncomeExpense us-gaap true credit duration monetary No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 41010000000 41010 false false false 2 false true false false 35244000 35 false false false 3 false true false false 17058000000 17058 false false false 4 false true false false 19472000000 19472 false false false The net amount of other nonoperating income and expense, which does not qualify for separate disclosure on the income statement under materiality guidelines. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 false 22 Total other income (expense), net 4 us-gaap_NonoperatingIncomeExpense us-gaap true credit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 320013000000 320013 false false false 2 false true false false 275008000 275 false false false 3 false true false false -160893000000 -160893 false false false 4 false true false false 74966000000 74966 false false false The aggregate amount of income (expense) from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 true 23 Earnings before income tax expense (benefit) 3 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 1015093000000 1015093 false false false 2 false true false false 872335000 872 false false false 3 false true false false 1073412000000 1073412 false false false 4 false true false false 1553269000000 1553269 false false false Sum of operating profit and nonoperating income (expense) before income (loss) from equity method investments, income taxes, extraordinary items, cumulative effects of changes in accounting principles, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 1(i) -Article 4 true 24 Income tax expense (benefit) (note 15) 3 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false -95584000000 -95584 false false false 2 false true false false -82141000 -82 false false false 3 false true false false 168011000000 168011 false false false 4 false true false false 208890000000 208890 false false false The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) true 26 Less: Net income attributable to noncontrolling interest 3 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 2000000 2 false false false 4 false false false false 0 0 false false false The portion of net income (loss) attributable to the noncontrolling interest (if any) deducted in order to derive the portion attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 false 27 Net income attributable to LG Display Co., Ltd. 3 us-gaap_NetIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 true true false false 1110677000000 1110677 false false false 2 true true false false 954476000 954 false false false 3 true true false false 905399000000 905399 false false false 4 true true false false 1344379000000 1344379 false false false The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 true 28 Earnings per share (note 18) 3 us-gaap_EarningsPerShareAbstract us-gaap true na duration string No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false No definition available. false 29 Basic 4 us-gaap_EarningsPerShareBasic us-gaap true na duration decimal No definition available. false false false false false false false false false false false true 1 true true false false 3102.00 31.0 false false false 2 true true false false 2670 26.7 false false false 3 true true false false 2529.00 25.3 false false false 4 true true false false 3755.00 37.6 false false false The amount of net income or loss for the period per each share of common stock outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 36, 37, 38 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 false 30 Diluted 4 us-gaap_EarningsPerShareDiluted us-gaap true na duration decimal No definition available. false false false false false false false false false false false true 1 true true false false 3070.00 30.7 false false false 2 true true false false 2640 26.4 false false false 3 true true false false 2497.00 25.0 false false false 4 true true false false 3708.00 37.1 false false false The amount of net income or loss for the period per each share of common stock and dilutive common stock equivalents outstanding during the reporting period. 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