2.0.0.10 false Consolidated Statements of Cash Flows 107 - Statement - Consolidated Statements of Cash Flows true false In Millions 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 Cash flows from operating activities: 3 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract 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 The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income. false 6 Net income 4 us-gaap_ProfitLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false false false verboselabel 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 905401000000 905401 false false false 4 true true false false 1344379000000 1344379 false false false The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. 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) false 7 Adjustments for: 4 us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract 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 8 Depreciation 5 us-gaap_Depreciation 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 2783732000000 2783732 false false false 2 false true false false 2392242000 2392 false false false 3 false true false false 2493512000000 2493512 false false false 4 false true false false 2780812000000 2780812 false false false The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 false 9 Amortization of intangible assets 5 us-gaap_AmortizationOfIntangibleAssets 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 43121000000 43121 false false false 2 false true false false 37057000 37 false false false 3 false true false false 13184000000 13184 false false false 4 false true false false 15824000000 15824 false false false The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(2) false 10 Loss (gain) on disposal of property, plant and equipment, net 5 us-gaap_GainLossOnSaleOfPropertyPlantEquipment us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -232000000 -232 false false false 2 false true false false -199000 0 false false false 3 false true false false -311000000 -311 false false false 4 false true false false 2656000000 2656 false false false The difference between the sale price or salvage price and the book value of a property, plant, and equipment asset that was sold or retired during the reporting period. This element refers to the gain (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 11 Impairment losses on property, plant and equipment 5 us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf 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 664000000 664 false false false 2 false true false false 571000 1 false false false 3 false true false false 83000000 83 false false false 4 false true false false 44398000000 44398 false false false The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 27, 28, 29, 30 false 12 Loss (gain) from redemption of debentures, net 5 us-gaap_GainsLossesOnRestructuringOfDebt us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated 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 13 Loss (gain) on foreign currency translation, net 5 us-gaap_ForeignCurrencyTransactionGainLossUnrealized us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -272685000000 -272685 false false false 2 false true false false -234336000 -234 false false false 3 false true false false 411479000000 411479 false false false 4 false true false false 836000000 836 false false false The aggregate unrealized foreign currency transaction gain or loss (pretax) included in determining net income for the reporting period. Represents the aggregate of gains and losses on transactions that are unsettled as of the balance sheet date, which is therefore an adjustment to reconcile income (loss) from continuing operations to net cash provided by (used in) continuing operations. (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 entity's financial statements. For certain entities, 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 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 52 -Paragraph 30 false 14 Amortization of debt issuance cost 5 us-gaap_AmortizationOfFinancingCosts 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 1528000000 1528 false false false 2 false true false false 1313000 1 false false false 3 false true false false 1805000000 1805 false false false 4 false true false false 1717000000 1717 false false false The component of interest expense comprised of the periodic charge against earnings over the life of the financing arrangement to which such costs relate. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 8 -Article 9 false 15 Provision for warranty reserve 5 us-gaap_ProductWarrantyExpense 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 113866000000 113866 false false false 2 false true false false 97851000 98 false false false 3 false true false false 90063000000 90063 false false false 4 false true false false 77852000000 77852 false false false The expense charged against earnings for the period pertaining to standard and extended warranties on the entity's goods and services granted to customers. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 16 Provision for severance benefits 5 us-gaap_SeveranceCosts 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 79525000000 79525 false false false 2 false true false false 68341000 68 false false false 3 false true false false 68992000000 68992 false false false 4 false true false false 62828000000 62828 false false false The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5-8 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 146 -Paragraph 8-13, 20 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS146-1 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 112 -Paragraph 7 false 17 Deferred income tax expense (benefit) 5 us-gaap_DeferredIncomeTaxExpenseBenefit 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 -284223000000 -284223 false false false 2 false true false false -244252000 -244 false false false 3 false true false false -157626000000 -157626 false false false 4 false true false false 122361000000 122361 false false false The component of income tax expense for the period representing the net change in the entity's deferred tax assets and liabilities pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Subsection 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 289 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 false 18 Others, net 5 us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther us-gaap true debit duration monetary No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 283559000000 283559 false false false 2 false true false false 243682000 244 false false false 3 false true false false 12878000000 12878 false false false 4 false true false false 101669000000 101669 false false false Transactions that do not result in cash inflows or outflows in the period in which they occur, but affect net income and thus are removed when calculating net cash flow from operating activities using the indirect cash flow method. This element is used when there is not a more specific and appropriate element. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 19 Changes in operating assets and liabilities: 4 us-gaap_IncreaseDecreaseInOperatingCapitalAbstract 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 20 Decrease (increase) in accounts receivable 5 us-gaap_IncreaseDecreaseInAccountsReceivable us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -911820000000 -911820 false false false 2 false true false false -783586000 -784 false false false 3 false true false false 177936000000 177936 false false false 4 false true false false -1446420000000 -1446420 false false false The net change during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 21 Decrease (increase) in inventories 5 us-gaap_IncreaseDecreaseInInventories us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -531108000000 -531108 false false false 2 false true false false -456416000 -456 false false false 3 false true false false -312749000000 -312749 false false false 4 false true false false 227666000000 227666 false false false The net change during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 22 Decrease in prepaid expenses 5 us-gaap_IncreaseDecreaseInPrepaidExpense us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false 29382000000 29382 false false false 2 false true false false 25249000 25 false false false 3 false true false false 26870000000 26870 false false false 4 false true false false 18405000000 18405 false false false The net change during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 23 Decrease (increase) in prepaid value added tax 5 lpl_IncreaseDecreaseInPrepaidValueAddedTax lpl false credit duration monetary The net change during the reporting period in the amount prepaid value added tax. false false false false false false false false false false true negated false 1 false true false false 96635000000 96635 false false false 2 false true false false 83044000 83 false false false 3 false true false false -70455000000 -70455 false false false 4 false true false false -10506000000 -10506 false false false The net change during the reporting period in the amount prepaid value added tax. No authoritative reference available. false 24 Decrease (increase) in other current assets 5 lpl_IncreaseDecreaseOtherCurrentAssets lpl false credit duration monetary The net change in the beginning and end of period Other Current Assets balances. false false false false false false false false false false true negated false 1 false true false false 8981000000 8981 false false false 2 false true false false 7718000 8 false false false 3 false true false false -18668000000 -18668 false false false 4 false true false false 10139000000 10139 false false false The net change in the beginning and end of period Other Current Assets balances. No authoritative reference available. false 25 Decrease (increase) in other non-current assets 5 us-gaap_IncreaseDecreaseInOtherOperatingAssets us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false 21276000000 21276 false false false 2 false true false false 18284000 18 false false false 3 false true false false -23647000000 -23647 false false false 4 false true false false -78049000000 -78049 false false false The net change during the reporting period in other operating assets not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 26 Increase in trade accounts payable 5 us-gaap_IncreaseDecreaseInAccountsPayableTrade 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 1021807000000 1021807 false false false 2 false true false false 878105000 878 false false false 3 false true false false 83729000000 83729 false false false 4 false true false false 36778000000 36778 false false false Change in recurring obligations of a business that arise from the acquisition of merchandise, materials, supplies and services used in the production and sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 27 Increase (decrease) in other accounts payable 5 us-gaap_IncreaseDecreaseInOtherAccountsPayable 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 45273000000 45273 false false false 2 false true false false 38906000 39 false false false 3 false true false false 195692000000 195692 false false false 4 false true false false -19853000000 -19853 false false false The net change during the reporting period in other obligations due by the reporting entity that are payable within one year (or one business cycle), not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 28 Increase in accrued expenses 5 us-gaap_IncreaseDecreaseInAccruedLiabilities 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 161170000000 161170 false false false 2 false true false false 138504000 139 false false false 3 false true false false 102689000000 102689 false false false 4 false true false false 43421000000 43421 false false false The net change during the reporting period in the aggregate amount of expenses incurred but not yet paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 29 Increase (decrease) in other current liabilities 5 lpl_IncreaseDecreaseOtherCurrentLiabilities lpl false debit duration monetary The net change in the beginning and end of period Other Current Liabilities balances. false false false false false false false false false false false false 1 false true false false -247810000000 -247810 false false false 2 false true false false -212959000 -213 false false false 3 false true false false 62120000000 62120 false false false 4 false true false false 42607000000 42607 false false false The net change in the beginning and end of period Other Current Liabilities balances. No authoritative reference available. false 30 Increase in long-term advances received 5 us-gaap_IncreaseDecreaseInCustomerAdvances 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 695500000000 695500 false false false 2 false true false false 597688000 598 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false The net change during the reporting period in the amount of prepayments by customers for goods or services to be provided at a later date. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 31 Increase (decrease) in other non-current liabilities 5 us-gaap_IncreaseDecreaseInOtherOperatingLiabilities 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 -97592000000 -97592 false false false 2 false true false false -83867000 -84 false false false 3 false true false false 463631000000 463631 false false false 4 false true false false -88188000000 -88188 false false false The net change during the reporting period in other operating obligations not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 32 Net cash provided by operating activities 4 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 4151399000000 4151399 false false false 2 false true false false 3567565000 3568 false false false 3 false true false false 4525468000000 4525468 false false false 4 false true false false 3308964000000 3308964 false false false The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 33 Cash flows from investing activities: 3 us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract 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 34 Acquisition of short-term financial instruments 4 us-gaap_PaymentsToAcquireShortTermInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -4000000000000 -4000000 false false false 2 false true false false -3437460000 -3437 false false false 3 false true false false -3320000000000 -3320000 false false false 4 false true false false -785000000000 -785000 false false false The cash outflow for securities or other assets acquired with excess cash, having ready marketability, which qualify for treatment as an investing activity based on management's intention and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 17 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Section Appendix C -Paragraph 5 -Subparagraph c false 35 Proceeds from disposal of short-term financial instruments 4 us-gaap_ProceedsFromSaleOfShortTermInvestments 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 3555000000000 3555000 false false false 2 false true false false 3055042000 3055 false false false 3 false true false false 2050000000000 2050000 false false false 4 false false false false 0 0 false false false The cash inflow from securities or other assets sold, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Section Appendix C -Paragraph 5 -Subparagraph c Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 16 false 36 Acquisition of investment securities 4 us-gaap_PaymentsToAcquireAvailableForSaleSecurities us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -29246000000 -29246 false false false 2 false true false false -25133000 -25 false false false 3 false true false false -96260000000 -96260 false false false 4 false true false false -39000000 -39 false false false The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 18 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph a false 37 Acquisition of property, plant and equipment 4 us-gaap_PaymentsToAcquirePropertyPlantAndEquipmentAbstract 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 38 From related parties 5 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -1021011000000 -1021011 false false false 2 false true false false -877421000 -877 false false false 3 false true false false -1238009000000 -1238009 false false false 4 false true false false -408244000000 -408244 false false false The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph c false 39 From others 5 us-gaap_PaymentsToAcquireOtherPropertyPlantAndEquipment us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -2757647000000 -2757647 false false false 2 false true false false -2369825000 -2370 false false false 3 false true false false -1510568000000 -1510568 false false false 4 false true false false -1169075000000 -1169075 false false false The cash outflow for acquisition of or capital improvements of property, plant and equipment, used to produce goods or deliver services, and not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph c false 40 Proceeds from disposal of property, plant and equipment 4 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment 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 7850000000 7850 false false false 2 false true false false 6746000 7 false false false 3 false true false false 2975000000 2975 false false false 4 false true false false 5547000000 5547 false false false The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 16 -Subparagraph c false 41 Acquisition of intangible assets 4 us-gaap_PaymentsToAcquireIntangibleAssets us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -109017000000 -109017 false false false 2 false true false false -93685000 -94 false false false 3 false true false false -125413000000 -125413 false false false 4 false true false false -18651000000 -18651 false false false The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph c false 42 Acquisition of equity method investments 4 us-gaap_PaymentsToAcquireEquityMethodInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -186477000000 -186477 false false false 2 false true false false -160252000 -160 false false false 3 false true false false -46755000000 -46755 false false false 4 false false false false 0 0 false false false The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph b false 43 Others, net 4 us-gaap_PaymentsForProceedsFromOtherInvestingActivities us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -9603000000 -9603 false false false 2 false true false false -8252000 -8 false false false 3 false true false false -6220000000 -6220 false false false 4 false true false false -6612000000 -6612 false false false The net cash outflow (inflow) from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 false 44 Net cash used in investing activities 4 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false -4550151000000 -4550151 false false false 2 false true false false -3910240000 -3910 false false false 3 false true false false -4290250000000 -4290250 false false false 4 false true false false -2382074000000 -2382074 false false false The net cash inflow (outflow) from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 45 Cash flows from financing activities: 3 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract 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 46 Proceeds from (repayment of) short-term borrowings, net 4 us-gaap_ProceedsFromRepaymentsOfShortTermDebt 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 151180000000 151180 false false false 2 false true false false 129919000 130 false false false 3 false true false false 596407000000 596407 false false false 4 false true false false -245335000000 -245335 false false false The net cash inflow (outflow) for borrowing having initial term of repayment within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 false 47 Proceeds from issuance of long-term debts 4 us-gaap_ProceedsFromIssuanceOfLongTermDebt 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 868319000000 868319 false false false 2 false true false false 746203000 746 false false false 3 false true false false 23637000000 23637 false false false 4 false true false false 887434000000 887434 false false false The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph b false 48 Repayment of long-term debt 4 us-gaap_RepaymentsOfLongTermDebt us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -957612000000 -957612 false false false 2 false true false false -822938000 -823 false false false 3 false true false false -503916000000 -503916 false false false 4 false true false false -1364400000000 -1364400 false false false The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b false 49 Proceeds from long-term other payables 4 us-gaap_ProceedsFromOtherDebt 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 14608000000 14608 false false false 4 false true false false 39843000000 39843 false false false The cash inflow from other borrowing not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph b false 50 Payment of dividend 4 us-gaap_PaymentsOfDividends us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -178908000000 -178908 false false false 2 false true false false -153747000 -154 false false false 3 false true false false -268362000000 -268362 false false false 4 false false false false 0 0 false false false The cash outflow from the entity's earnings to the shareholders. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a false 51 Distribution to noncontrolling interest holders 4 us-gaap_PaymentsToMinorityShareholders us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated 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 -88000000 -88 false false false 4 false false false false 0 0 false false false The cash outflow to return capital to noncontrolled interest, which generally occurs when noncontrolling shareholders reduce their ownership stake (in a subsidiary of the entity). This element does not include dividends paid to noncontrolling shareholders. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a false 52 Net cash used in financing activities 4 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false -117021000000 -117021 false false false 2 false true false false -100563000 -101 false false false 3 false true false false -137714000000 -137714 false false false 4 false true false false -682458000000 -682458 false false false The net cash inflow (outflow) from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 53 Effect of exchange rate changes on cash and cash equivalents 3 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents 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 -21679000000 -21679 false false false 2 false true false false -18630000 -19 false false false 3 false true false false 58825000000 58825 false false false 4 false true false false -2457000000 -2457 false false false The effect of exchange rate changes on cash balances held in foreign currencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 25 false 54 Net increase in cash and cash equivalents from change in consolidated subsidiaries 3 lpl_EffectOfChangesInConsolidatedSubsidiaries lpl false debit duration monetary Effect of changes in consolidated subsidiaries. false false false false false false false false false false false false 1 false true false false 2682000000 2682 false false false 2 false true false false 2305000 2 false false false 3 false false false false 0 0 false false false 4 false true false false 86000000 86 false false false Effect of changes in consolidated subsidiaries. No authoritative reference available. false 55 Net increase (decrease) in cash and cash equivalents 3 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false -534770000000 -534770 false false false 2 false true false false -459563000 -460 false false false 3 false true false false 156329000000 156329 false false false 4 false true false false 242061000000 242061 false false false The net change between the beginning and ending balance of cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 56 Cash and cash equivalents, beginning of the year 3 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false false true false false periodstartlabel false 1 false false false false 1162508000 1163 false false false 2 false true false false 1162508000 1163 false false false 3 false true false false 1196423000000 1196423 false false false 4 false true false false 954362000000 954362 false false false Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 57 Cash and cash equivalents, end of the year 3 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false false false true false periodendlabel false 1 true true false false 817982000000 817982 false false false 2 true true false false 702945000 703 false false false 3 true true false false 1162508000 1163 false false false 4 true true false false 1196423000000 1196423 false false false Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. 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