$LKQ
LKQ CORP Stock $lkq

$lkq Overview Financials Valuation SEC Filings Company Website

2019 Form 10-K Financial Statement

#000106569620000008 Filed on February 27, 2020

Income Statement

Concept	2019	2018 Q4	2018
Revenue	$12.51B	$3.003B	$11.88B
YoY Change	5.3%	21.58%	21.98%
Cost Of Revenue	$7.654B	$1.841B	$7.302B
YoY Change	4.83%	20.94%	22.98%
Gross Profit	$4.852B	$1.162B	$4.575B
YoY Change	6.05%	22.6%	20.4%
Gross Profit Margin	38.8%	38.69%	38.52%
Selling, General & Admin	$3.580B	$880.6M	$3.353B
YoY Change	6.79%	23.63%	23.47%
% of Gross Profit	73.79%	75.8%	73.29%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$314.4M	$83.10M	$294.1M
YoY Change	6.91%	30.46%	27.75%
% of Gross Profit	6.48%	7.15%	6.43%
Operating Expenses	$3.580B	$958.5M	$3.353B
YoY Change	6.79%	24.05%	23.47%
Operating Profit	$896.6M	$203.3M	$882.2M
YoY Change	1.63%	21.05%	4.41%
Interest Expense	$138.5M	-$38.70M	$146.4M
YoY Change	-5.38%	39.21%	-245.48%
% of Operating Profit	15.45%	-19.04%	16.59%
Other Income/Expense, Net	-$105.6M	-$2.600M	-$138.8M
YoY Change	-23.91%	-120.0%	77.12%
Pretax Income	$791.0M	$123.6M	$562.8M
YoY Change	40.56%	-17.71%	-2.15%
Income Tax	$215.3M	$35.00M	$191.4M
% Of Pretax Income	27.22%	28.32%	34.01%
Net Earnings	$541.3M	$36.00M	$480.1M
YoY Change	12.73%	-71.01%	-10.05%
Net Earnings / Revenue	4.33%	1.2%	4.04%
Basic Earnings Per Share	$1.75		$1.53
Diluted Earnings Per Share	$1.74	$113.0K	$1.52
COMMON SHARES
Basic Shares Outstanding	310.2M shares	318.2M shares	314.4M shares
Diluted Shares Outstanding	311.0M shares		315.8M shares

Balance Sheet

Concept	2019	2018 Q4	2018
SHORT-TERM ASSETS
Cash & Short-Term Investments	$523.0M	$332.0M	$332.0M
YoY Change	57.53%	18.57%	18.57%
Cash & Equivalents	$523.0M	$331.8M	$332.0M
Short-Term Investments
Other Short-Term Assets	$261.0M	$199.0M	$199.0M
YoY Change	31.16%	48.51%	48.51%
Inventory	$2.773B	$2.836B	$2.836B
Prepaid Expenses
Receivables	$1.131B	$1.154B	$1.154B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$4.688B	$4.521B	$4.521B
YoY Change	3.69%	18.28%	18.29%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.543B	$1.220B	$1.220B
YoY Change	108.44%	33.63%	33.63%
Goodwill		$4.381B
YoY Change		23.89%
Intangibles		$928.8M
YoY Change		24.87%
Long-Term Investments	$139.0M	$179.2M	$179.0M
YoY Change	-22.35%	-14.03%	-13.94%
Other Assets	$153.0M	$162.9M	$163.0M
YoY Change	-6.13%	13.95%	13.99%
Total Long-Term Assets	$8.092B	$6.872B	$6.872B
YoY Change	17.75%	23.95%	23.93%
TOTAL ASSETS
Total Short-Term Assets	$4.688B	$4.521B	$4.521B
Total Long-Term Assets	$8.092B	$6.872B	$6.872B
Total Assets	$12.78B	$11.39B	$11.39B
YoY Change	12.17%	21.64%	21.63%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$943.0M	$942.4M	$942.0M
YoY Change	0.11%	19.5%	19.39%
Accrued Expenses	$690.0M	$288.4M	$460.0M
YoY Change	50.0%	31.94%	27.07%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$326.0M	$122.0M	$122.0M
YoY Change	167.21%	-3.17%	-3.17%
Total Short-Term Liabilities	$2.179B	$1.690B	$1.690B
YoY Change	28.93%	27.79%	27.74%
LONG-TERM LIABILITIES
Long-Term Debt	$3.715B	$4.189B	$4.189B
YoY Change	-11.32%	27.79%	27.79%
Other Long-Term Liabilities	$1.503B	$364.2M	$364.0M
YoY Change	312.91%	18.43%	18.18%
Total Long-Term Liabilities	$5.218B	$364.2M	$4.553B
YoY Change	14.61%	18.43%	26.97%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.179B	$1.690B	$1.690B
Total Long-Term Liabilities	$5.218B	$364.2M	$4.553B
Total Liabilities	$7.771B	$2.055B	$6.611B
YoY Change	17.55%	26.03%	27.9%
SHAREHOLDERS EQUITY
Retained Earnings		$3.599B
YoY Change		15.2%
Common Stock		$1.418B
YoY Change		23.92%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$60.00M
YoY Change
Treasury Stock Shares
Shareholders Equity	$5.009B	$4.782B	$4.782B
YoY Change
Total Liabilities & Shareholders Equity	$12.78B	$11.39B	$11.39B
YoY Change	12.17%	21.64%	21.63%

Cashflow Statement

Concept	2019	2018 Q4	2018
OPERATING ACTIVITIES
Net Income	$541.3M	$36.00M	$480.1M
YoY Change	12.73%	-71.01%	-10.05%
Depreciation, Depletion And Amortization	$314.4M	$83.10M	$294.1M
YoY Change	6.91%	30.46%	27.75%
Cash From Operating Activities	$1.064B	$189.5M	$710.7M
YoY Change	49.71%	171.88%	36.97%
INVESTING ACTIVITIES
Capital Expenditures	-$265.7M	-$78.20M	-$250.0M
YoY Change	6.28%	79.36%	39.59%
Acquisitions	$27.30M		$1.215B
YoY Change	-97.75%		136.8%
Other Investing Activities	-$12.13M	-$9.100M	-$1.733M
YoY Change	599.83%	-96.46%	-66.95%
Cash From Investing Activities	-$264.9M	-$87.40M	-$1.459B
YoY Change	-81.85%	-70.91%	279.34%
FINANCING ACTIVITIES
Cash Dividend Paid	$0.00
YoY Change
Common Stock Issuance & Retirement, Net	$292.0M		$60.00M
YoY Change	386.67%
Debt Paid & Issued, Net	$8.750M		$354.8M
YoY Change	-97.53%		1172.41%
Cash From Financing Activities	-$600.7M	-96.30M	$883.0M
YoY Change	-168.03%	-141.07%	-884.42%
NET CHANGE
Cash From Operating Activities	$1.064B	189.5M	$710.7M
Cash From Investing Activities	-$264.9M	-87.40M	-$1.459B
Cash From Financing Activities	-$600.7M	-96.30M	$883.0M
Net Change In Cash	$197.6M	5.800M	$57.48M
YoY Change	243.76%	52.63%	164.44%
FREE CASH FLOW
Cash From Operating Activities	$1.064B	$189.5M	$710.7M
Capital Expenditures	-$265.7M	-$78.20M	-$250.0M
Free Cash Flow	$1.330B	$267.7M	$960.7M
YoY Change	38.41%	136.28%	37.64%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001065696
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	13195915	shares
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1000000	USD
CY2019	lkq	Restructuring Charges And Business Combination Acquisition Related Costs RestructuringChargesAndBusinessCombinationAcquisitionRelatedCosts	36979000	USD
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	318417821	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	319927243	shares
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	316146114	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	306731328	shares
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2018Q4	lkq	Borrowings Under Credit Facility Fv BorrowingsUnderCreditFacilityFV	1700000000	USD
CY2019Q4	lkq	Borrowings Under Credit Facility Fv BorrowingsUnderCreditFacilityFV	1600000000	USD
CY2017Q4	lkq	Unrecognized Tax Benefits That Would Impact Deferred Taxes UnrecognizedTaxBenefitsThatWouldImpactDeferredTaxes	1000000	USD
CY2018Q4	lkq	Unrecognized Tax Benefits That Would Impact Deferred Taxes UnrecognizedTaxBenefitsThatWouldImpactDeferredTaxes	1000000	USD
CY2018Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.045
CY2018Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	2271707	shares
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	000-50404
CY2019	dei	Entity Registrant Name EntityRegistrantName	LKQ CORPORATION
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	36-4215970
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	500 West Madison Street,
CY2019	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 2800,
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Chicago,
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	IL
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	60661
CY2019	dei	City Area Code CityAreaCode	312
CY2019	dei	Local Phone Number LocalPhoneNumber	621-1950
CY2019	dei	Security12b Title Security12bTitle	Common Stock, par value $.01 per share
CY2019	dei	Trading Symbol TradingSymbol	LKQ
CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019Q2	dei	Entity Public Float EntityPublicFloat	8200000000	USD
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	307148085	shares
CY2019	us-gaap	Revenues Revenues	12506109000	USD
CY2018	us-gaap	Revenues Revenues	11876674000	USD
CY2017	us-gaap	Revenues Revenues	9736909000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	7654315000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	7301817000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	5937286000	USD
CY2019	us-gaap	Gross Profit GrossProfit	4851794000	USD
CY2018	lkq	Restructuring Charges And Business Combination Acquisition Related Costsnetof Restructuring Depreciation RestructuringChargesAndBusinessCombinationAcquisitionRelatedCostsnetofRestructuringDepreciation	32428000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	844998000	USD
CY2019	us-gaap	Interest And Debt Expense InterestAndDebtExpense	138504000	USD
CY2018	us-gaap	Gross Profit GrossProfit	4574857000	USD
CY2017	us-gaap	Gross Profit GrossProfit	3799623000	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	3580300000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	3352731000	USD
CY2017	lkq	Restructuring Charges And Business Combination Acquisition Related Costsnetof Restructuring Depreciation RestructuringChargesAndBusinessCombinationAcquisitionRelatedCostsnetofRestructuringDepreciation	19672000	USD
CY2018	us-gaap	Interest And Debt Expense InterestAndDebtExpense	146377000	USD
CY2017	us-gaap	Interest And Debt Expense InterestAndDebtExpense	101640000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	47102000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2715407000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	128000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1350000	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-456000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	32755000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	33244000	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	290770000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	274213000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	219546000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	896643000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	882241000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	8917000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	23725000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-105621000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-138810000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-78371000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	791022000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	743431000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	766627000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	215330000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	191395000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	235560000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-32277000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-64471000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5907000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	543415000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	487565000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	536974000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	1619000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-4397000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-6746000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	545034000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	483168000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	530228000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	2800000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	3050000	USD
CY2018	lkq	Net Income Attributableto Discontinued Noncontrolling Interest Per Share Basic NetIncomeAttributabletoDiscontinuedNoncontrollingInterestPerShareBasic	0
CY2017	lkq	Net Income Attributableto Discontinued Noncontrolling Interest Per Share Basic NetIncomeAttributabletoDiscontinuedNoncontrollingInterestPerShareBasic	0
CY2018	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	-0.01
CY2017	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	-0.02
CY2019	lkq	Earnings Per Share Basicincluding Portionattributabletononcontrolinginterest EarningsPerShareBasicincludingPortionattributabletononcontrolinginterest	1.76
CY2018	lkq	Earnings Per Share Basicincluding Portionattributabletononcontrolinginterest EarningsPerShareBasicincludingPortionattributabletononcontrolinginterest	1.54
CY2017	lkq	Earnings Per Share Basicincluding Portionattributabletononcontrolinginterest EarningsPerShareBasicincludingPortionattributabletononcontrolinginterest	1.72
CY2019	lkq	Net Income Attributableto Continuing Noncontrolling Interest Per Share Basic NetIncomeAttributabletoContinuingNoncontrollingInterestPerShareBasic	0.01
CY2018	lkq	Net Income Attributableto Continuing Noncontrolling Interest Per Share Basic NetIncomeAttributabletoContinuingNoncontrollingInterestPerShareBasic	0.01
CY2017	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-3516000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	974000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	480118000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	533744000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.75
CY2018	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.55
CY2017	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.74
CY2019	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0.01
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CY2019	lkq	Net Income Attributableto Discontinued Noncontrolling Interest Per Share Basic NetIncomeAttributabletoDiscontinuedNoncontrollingInterestPerShareBasic	0.00
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.75
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.53
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.73
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.75
CY2018	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.54
CY2017	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.73
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CY2018	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	-0.01
CY2017	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	-0.02
CY2019	lkq	Earnings Per Share Dilutedincludingportionattributabletononcontrollinginterest EarningsPerShareDilutedincludingportionattributabletononcontrollinginterest	1.75
CY2018	lkq	Earnings Per Share Dilutedincludingportionattributabletononcontrollinginterest EarningsPerShareDilutedincludingportionattributabletononcontrollinginterest	1.53
CY2017	lkq	Earnings Per Share Dilutedincludingportionattributabletononcontrollinginterest EarningsPerShareDilutedincludingportionattributabletononcontrollinginterest	1.71
CY2019	lkq	Net Income Attributableto Continuing Noncontrolling Interest Per Share Diluted NetIncomeAttributabletoContinuingNoncontrollingInterestPerShareDiluted	0.01
CY2018	lkq	Net Income Attributableto Continuing Noncontrolling Interest Per Share Diluted NetIncomeAttributabletoContinuingNoncontrollingInterestPerShareDiluted	0.01
CY2017	lkq	Net Income Attributableto Continuing Noncontrolling Interest Per Share Diluted NetIncomeAttributabletoContinuingNoncontrollingInterestPerShareDiluted	-0.01
CY2019	lkq	Net Income Attributableto Discontinued Noncontrolling Interest Per Share Diluted NetIncomeAttributabletoDiscontinuedNoncontrollingInterestPerShareDiluted	0.00
CY2018	lkq	Net Income Attributableto Discontinued Noncontrolling Interest Per Share Diluted NetIncomeAttributabletoDiscontinuedNoncontrollingInterestPerShareDiluted	0
CY2017	lkq	Net Income Attributableto Discontinued Noncontrolling Interest Per Share Diluted NetIncomeAttributabletoDiscontinuedNoncontrollingInterestPerShareDiluted	0
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.74
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.52
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.72
CY2019	us-gaap	Profit Loss ProfitLoss	545034000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	533744000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	350000	USD
CY2019	us-gaap	Translation Adjustment Functional To Reporting Currency Net Of Tax Period Increase Decrease TranslationAdjustmentFunctionalToReportingCurrencyNetOfTaxPeriodIncreaseDecrease	6704000	USD
CY2018	us-gaap	Translation Adjustment Functional To Reporting Currency Net Of Tax Period Increase Decrease TranslationAdjustmentFunctionalToReportingCurrencyNetOfTaxPeriodIncreaseDecrease	-108523000	USD
CY2017	us-gaap	Translation Adjustment Functional To Reporting Currency Net Of Tax Period Increase Decrease TranslationAdjustmentFunctionalToReportingCurrencyNetOfTaxPeriodIncreaseDecrease	200596000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-9016000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-3516000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	974000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	541260000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	480118000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	483168000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	530228000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	2800000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	3050000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	3447000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	23859000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	-697000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	6035000	USD
CY2019	lkq	Othercomprehensiveincomelossunconsolidatedsubsidiaries Othercomprehensiveincomelossunconsolidatedsubsidiaries	236000	USD
CY2018	lkq	Othercomprehensiveincomelossunconsolidatedsubsidiaries Othercomprehensiveincomelossunconsolidatedsubsidiaries	-2343000	USD
CY2017	lkq	Othercomprehensiveincomelossunconsolidatedsubsidiaries Othercomprehensiveincomelossunconsolidatedsubsidiaries	-1309000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-109819000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	196699000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	519099000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	373349000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	726927000	USD
CY2019	lkq	Comprehensive Income Lossfrom Continuing Operations Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeLossfromContinuingOperationsNetOfTaxAttributableToNoncontrollingInterest	2800000	USD
CY2018	lkq	Comprehensive Income Lossfrom Continuing Operations Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeLossfromContinuingOperationsNetOfTaxAttributableToNoncontrollingInterest	3050000	USD
CY2017	lkq	Comprehensive Income Lossfrom Continuing Operations Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeLossfromContinuingOperationsNetOfTaxAttributableToNoncontrollingInterest	-3516000	USD
CY2019	lkq	Comprehensive Income Lossfrom Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeLossfromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	974000	USD
CY2018	lkq	Comprehensive Income Lossfrom Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeLossfromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2017	lkq	Comprehensive Income Lossfrom Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeLossfromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	515325000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	370299000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	730443000	USD
CY2019Q4	lkq	Cashandcashequivalentsatcarryingvalueexcludingrestrictedcash Cashandcashequivalentsatcarryingvalueexcludingrestrictedcash	523020000	USD
CY2018Q4	lkq	Cashandcashequivalentsatcarryingvalueexcludingrestrictedcash Cashandcashequivalentsatcarryingvalueexcludingrestrictedcash	331761000	USD
CY2019Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	1131132000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	2836075000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	4687819000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	4520949000	USD
CY2018Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	1154083000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	2772777000	USD
CY2018Q4	us-gaap	Assets Assets	11393402000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	260890000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	199030000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	4406535000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	942795000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	942398000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1234400000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1220162000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1308511000	USD
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
CY2019Q4	us-gaap	Assets Assets	12779956000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	4381458000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	850338000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	928752000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	139243000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	179169000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	153110000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	162912000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	179203000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	172005000	USD
CY2019Q4	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	97314000	USD
CY2018Q4	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	104585000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	289683000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	288425000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	121623000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	61109000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	221527000	USD
CY2018Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	0	USD
CY2019Q4	lkq	Longterm Debtand Capital Lease Obligations Current Net LongtermDebtandCapitalLeaseObligationsCurrentNet	326367000	USD
CY2018Q4	lkq	Longterm Debtand Capital Lease Obligations Current Net LongtermDebtandCapitalLeaseObligationsCurrentNet	121826000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2178512000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1690348000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1137597000	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2019Q4	lkq	Long Term Debtand Capital Lease Obligations Excluding Current Portion Net LongTermDebtandCapitalLeaseObligationsExcludingCurrentPortionNet	3715389000	USD
CY2018Q4	lkq	Long Term Debtand Capital Lease Obligations Excluding Current Portion Net LongTermDebtandCapitalLeaseObligationsExcludingCurrentPortionNet	4188674000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	310129000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	311434000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	365672000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	364194000	USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	24077000	USD
CY2018Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	0	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	3199000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	3184000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1418239000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3598876000	USD
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1415188000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	4140136000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4838752000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	12779956000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-200885000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-174950000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	351813000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	60000000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	5008876000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	4782298000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	39704000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	56454000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5048580000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	11393402000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	545034000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	483168000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	530228000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	314406000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	294077000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	230203000	USD
CY2019	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	41057000	USD
CY2018	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	70895000	USD
CY2017	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	0	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	47102000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	33244000	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	27695000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	22760000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	22832000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	7109000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2180000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-46537000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	16311000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-8466000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-8683000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-26419000	USD
CY2018	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-241000	USD
CY2017	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	55979000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-15460000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	127153000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	203857000	USD
CY2019	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	25776000	USD
CY2018	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	-2125000	USD
CY2017	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	8376000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3712000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-77621000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	45136000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-26574000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-6967000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	20185000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1064033000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	710739000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	518900000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	265730000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	250027000	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	179090000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	16045000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	27659000	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	8707000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	27296000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1214995000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	513088000	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	18469000	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2017	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	301297000	USD
CY2019	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	7594000	USD
CY2018	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	60300000	USD
CY2017	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	7664000	USD
CY2019	lkq	Receiptsofdeferredpurchasepriceonreceivablesunderfactoringarrangements Receiptsofdeferredpurchasepriceonreceivablesunderfactoringarrangements	0	USD
CY2018	lkq	Receiptsofdeferredpurchasepriceonreceivablesunderfactoringarrangements Receiptsofdeferredpurchasepriceonreceivablesunderfactoringarrangements	36991000	USD
CY2017	lkq	Receiptsofdeferredpurchasepriceonreceivablesunderfactoringarrangements Receiptsofdeferredpurchasepriceonreceivablesunderfactoringarrangements	0	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-1253000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-1733000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-5243000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-264853000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1458939000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-384595000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	21128000	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	4267000	USD
CY2019	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	1232100000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	291813000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	60000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	605708000	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1667325000	USD
CY2017	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	839171000	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	734471000	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	1528970000	USD
CY2017	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	946477000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	8750000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	354800000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	27884000	USD
CY2019	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	36600000	USD
CY2018	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	10120000	USD
CY2017	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	11245000	USD
CY2019	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	146600000	USD
CY2018	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	120000	USD
CY2017	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	11245000	USD
CY2019	lkq	Repayments Of Notes Payable Issued From Acquisitions RepaymentsOfNotesPayableIssuedFromAcquisitions	19123000	USD
CY2018	lkq	Repayments Of Notes Payable Issued From Acquisitions RepaymentsOfNotesPayableIssuedFromAcquisitions	54888000	USD
CY2017	lkq	Repayments Of Notes Payable Issued From Acquisitions RepaymentsOfNotesPayableIssuedFromAcquisitions	0	USD
CY2019	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	-33922000	USD
CY2018	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	-11730000	USD
CY2017	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	19706000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-8298000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	5086000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	7184000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-600669000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	882995000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-112567000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-904000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-77311000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	23512000	USD
CY2019	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	197607000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	57484000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	45250000	USD
CY2018Q4	lkq	Cash And Cash Equivalents Continuing Operations CashAndCashEquivalentsContinuingOperations	337250000	USD
CY2017Q4	lkq	Cash And Cash Equivalents Continuing Operations CashAndCashEquivalentsContinuingOperations	279766000	USD
CY2016Q4	lkq	Cash And Cash Equivalents Continuing Operations CashAndCashEquivalentsContinuingOperations	227400000	USD
CY2018Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	0	USD
CY2017Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	0	USD
CY2016Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	7116000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value Including Discontinued Operations CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations	337250000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value Including Discontinued Operations CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations	279766000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value Including Discontinued Operations CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations	234516000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value Including Discontinued Operations CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations	534857000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value Including Discontinued Operations CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations	337250000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value Including Discontinued Operations CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations	279766000	USD
CY2019Q4	lkq	Disposal Group Discontinued Operations Cashand Cash Equivalents DisposalGroupDiscontinuedOperationsCashandCashEquivalents	-6470000	USD
CY2018Q4	lkq	Disposal Group Discontinued Operations Cashand Cash Equivalents DisposalGroupDiscontinuedOperationsCashandCashEquivalents	0	USD
CY2017Q4	lkq	Disposal Group Discontinued Operations Cashand Cash Equivalents DisposalGroupDiscontinuedOperationsCashandCashEquivalents	0	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	528387000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	337250000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	279766000	USD
CY2019Q4	lkq	Cashandcashequivalentsatcarryingvalueexcludingrestrictedcash Cashandcashequivalentsatcarryingvalueexcludingrestrictedcash	523020000	USD
CY2018Q4	lkq	Cashandcashequivalentsatcarryingvalueexcludingrestrictedcash Cashandcashequivalentsatcarryingvalueexcludingrestrictedcash	331761000	USD
CY2017Q4	lkq	Cashandcashequivalentsatcarryingvalueexcludingrestrictedcash Cashandcashequivalentsatcarryingvalueexcludingrestrictedcash	279766000	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	5367000	USD
CY2018Q4	us-gaap	Restricted Cash RestrictedCash	5489000	USD
CY2017Q4	us-gaap	Restricted Cash RestrictedCash	0	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	528387000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	337250000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	279766000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	181306000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	200098000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	273019000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	143121000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	137866000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	95707000	USD
CY2019	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	USD
CY2018	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	251334000	USD
CY2017	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	10154000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	16518000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	18122000	USD
CY2019	lkq	Business Acquisition Noncashconsiderationtransferredanddebtassumed BusinessAcquisitionNoncashconsiderationtransferredanddebtassumed	47887000	USD
CY2018	lkq	Business Acquisition Noncashconsiderationtransferredanddebtassumed BusinessAcquisitionNoncashconsiderationtransferredanddebtassumed	105566000	USD
CY2017	lkq	Business Acquisition Noncashconsiderationtransferredanddebtassumed BusinessAcquisitionNoncashconsiderationtransferredanddebtassumed	59045000	USD
CY2019	lkq	Notesandotherfinancingreceivablesinconnectionwithdisposalsofbusinessinvestment Notesandotherfinancingreceivablesinconnectionwithdisposalsofbusinessinvestment	0	USD
CY2018	lkq	Notesandotherfinancingreceivablesinconnectionwithdisposalsofbusinessinvestment Notesandotherfinancingreceivablesinconnectionwithdisposalsofbusinessinvestment	0	USD
CY2017	lkq	Notesandotherfinancingreceivablesinconnectionwithdisposalsofbusinessinvestment Notesandotherfinancingreceivablesinconnectionwithdisposalsofbusinessinvestment	4000000	USD
CY2019	lkq	Noteissuedtoacquirenoncontrollinginterest Noteissuedtoacquirenoncontrollinginterest	14196000	USD
CY2018	lkq	Noteissuedtoacquirenoncontrollinginterest Noteissuedtoacquirenoncontrollinginterest	0	USD
CY2017	lkq	Noteissuedtoacquirenoncontrollinginterest Noteissuedtoacquirenoncontrollinginterest	0	USD
CY2019	lkq	Business Acquisition Contingent Consideration And Liabilities At Fair Value BusinessAcquisitionContingentConsiderationAndLiabilitiesAtFairValue	6627000	USD
CY2018	lkq	Business Acquisition Contingent Consideration And Liabilities At Fair Value BusinessAcquisitionContingentConsiderationAndLiabilitiesAtFairValue	3107000	USD
CY2017	lkq	Business Acquisition Contingent Consideration And Liabilities At Fair Value BusinessAcquisitionContingentConsiderationAndLiabilitiesAtFairValue	6234000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3442949000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	530228000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	196699000	USD
CY2017	lkq	Restricted Stock Units Vested Value Netof Tax Withholdings RestrictedStockUnitsVestedValueNetofTaxWithholdings	-4325000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	22832000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	7470000	USD
CY2017	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	-1200000	USD
CY2017	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	12000000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4206653000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	483168000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-109819000	USD
CY2018	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	251334000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	60000000	USD
CY2018	lkq	Restricted Stock Units Vested Value Netof Tax Withholdings RestrictedStockUnitsVestedValueNetofTaxWithholdings	-3796000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	22760000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	5303000	USD
CY2018	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	-1771000	USD
CY2018	lkq	Capitalcontributionsfromnetofdividendsdeclaredtononcontrollinginterestshareholder Capitalcontributionsfromnetofdividendsdeclaredtononcontrollinginterestshareholder	810000	USD
CY2018	lkq	Consolidation Less Than Wholly Owned Subsidiary Non Controlling Interest Acquired Value ConsolidationLessThanWhollyOwnedSubsidiaryNonControllingInterestAcquiredValue	44110000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4838752000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	545034000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-25935000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	291813000	USD
CY2019	lkq	Restricted Stock Units Vested Value Netof Tax Withholdings RestrictedStockUnitsVestedValueNetofTaxWithholdings	-2084000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	27695000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	9055000	USD
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	4495000	USD
CY2019	lkq	Capitalcontributionsfromnetofdividendsdeclaredtononcontrollinginterestshareholder Capitalcontributionsfromnetofdividendsdeclaredtononcontrollinginterestshareholder	-8474000	USD
CY2019	lkq	Consolidation Less Than Wholly Owned Subsidiary Non Controlling Interest Acquired Value ConsolidationLessThanWhollyOwnedSubsidiaryNonControllingInterestAcquiredValue	10365000	USD
CY2019	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	49520000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5048580000	USD
CY2019Q4	lkq	Numberof Facilities NumberofFacilities	1700
CY2019	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	7
CY2017	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	26
CY2018Q4	us-gaap	Business Combination Acquired Receivables Gross Contractual Amount BusinessCombinationAcquiredReceivablesGrossContractualAmount	163997000	USD
CY2018Q4	us-gaap	Business Combination Acquired Receivables Estimated Uncollectible BusinessCombinationAcquiredReceivablesEstimatedUncollectible	3736000	USD
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Inventory BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory	394259000	USD
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Prepaid Expense And Other Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets	12821000	USD
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Property Plant And Equipment BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment	277003000	USD
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangible Assets Other Than Goodwill BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill	320414000	USD
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Noncurrent Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets	16662000	USD
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deferred Tax Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities	83415000	USD
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities	366904000	USD
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Liabilities Long Term Debt BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt	84800000	USD
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Liabilities Other BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther	91130000	USD
CY2018	lkq	Consolidation Less Than Wholly Owned Subsidiary Non Controlling Interest Acquired Value ConsolidationLessThanWhollyOwnedSubsidiaryNonControllingInterestAcquiredValue	44110000	USD
CY2018Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	-3107000	USD
CY2018Q4	lkq	Business Acquisition Cost Of Acquired Entity Other Purchase Price Obligations Non Interest Bearing BusinessAcquisitionCostOfAcquiredEntityOtherPurchasePriceObligationsNonInterestBearing	2461000	USD
CY2018	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	251334000	USD
CY2018Q4	lkq	Business Acquisition Cost Of Acquired Entity Notes Payable Issued BusinessAcquisitionCostOfAcquiredEntityNotesPayableIssued	11347000	USD
CY2018	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	2418000	USD
CY2018	lkq	Subsequentpaymentsonpurchasepricepayables Subsequentpaymentsonpurchasepricepayables	1711000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1214995000	USD
CY2019	us-gaap	Revenues Revenues	12506109000	USD
CY2018	us-gaap	Revenues Revenues	11876674000	USD
CY2017	us-gaap	Revenues Revenues	9736909000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	543415000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	487565000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	536974000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	2800000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	3050000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-3516000	USD
CY2019	lkq	Purchasesundersupplyagreement Purchasesundersupplyagreement	30000000	USD
CY2018	lkq	Purchasesundersupplyagreement Purchasesundersupplyagreement	24000000	USD
CY2017	lkq	Purchasesundersupplyagreement Purchasesundersupplyagreement	42000000	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;padding-top:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;">Use of Estimates</span></div><div style="line-height:120%;padding-top:8px;text-indent:48px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">In preparing our financial statements in conformity with accounting principles generally accepted in the United States of America, we are required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.</span></div>
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	5000000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	53000000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	57000000	USD
CY2019	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="line-height:120%;padding-top:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;">Concentrations of Credit Risk</span></div><div style="line-height:120%;padding-top:8px;text-indent:48px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Financial instruments that potentially subject us to significant concentration of credit risk consist primarily of cash and cash equivalents and accounts receivable. We control our exposure to credit risk associated with these instruments by (i) placing our cash and cash equivalents with several major financial institutions; (ii) holding high-quality financial instruments; and (iii) maintaining strict policies over credit extension that include credit evaluations, credit limits and monitoring procedures. In addition, our overall credit risk with respect to accounts receivable is limited to some extent because our customer base is composed of a large number of geographically diverse customers.</span></div>
CY2019Q4	us-gaap	Inventory Net InventoryNet	2772777000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	2836075000	USD
CY2019	us-gaap	Property Plant And Equipment Depreciation Methods PropertyPlantAndEquipmentDepreciationMethods	straight-line method
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	850338000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1988740000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1840442000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	807680000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	685751000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1234400000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1220162000	USD
CY2019	us-gaap	Depreciation Depreciation	174000000	USD
CY2018	us-gaap	Depreciation Depreciation	157000000	USD
CY2017	us-gaap	Depreciation Depreciation	129000000	USD
CY2019Q4	lkq	Amountthatfairvalueexceedscarryingvalue Amountthatfairvalueexceedscarryingvalue	0.25
CY2017Q4	us-gaap	Goodwill Goodwill	3536511000	USD
CY2018	lkq	Goodwill Acquired During Period And Adjustments GoodwillAcquiredDuringPeriodAndAdjustments	972890000	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	-33244000	USD
CY2018	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-94699000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	4381458000	USD
CY2019	lkq	Goodwill Acquired During Period And Adjustments GoodwillAcquiredDuringPeriodAndAdjustments	54012000	USD
CY2019	lkq	Goodwillreclassifiedtoassetsheldforsale Goodwillreclassifiedtoassetsheldforsale	-4721000	USD
CY2019	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	-1919000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-22295000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	4406535000	USD
CY2019Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	-33244000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	769038000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	847452000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	928752000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1331373000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	562335000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	769038000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1279145000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	431693000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	847452000	USD
CY2017	us-gaap	Acquired Finite Lived Intangible Assets Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife	P16Y6M
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	140000000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	137000000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	102000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	120000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	93000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	80000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	70000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	64000000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	47000000	USD
CY2019Q3	lkq	Numberof Businesses Divested NumberofBusinessesDivested	2
CY2019	lkq	Disposal Group Continuing Operations Revenue DisposalGroupContinuingOperationsRevenue	55000000	USD
CY2019Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	69000000	USD
CY2019Q4	lkq	Disposal Group Continuing Operations Assets DisposalGroupContinuingOperationsAssets	19000000	USD
CY2019Q4	lkq	Disposal Group Continuing Operations Liabilities DisposalGroupContinuingOperationsLiabilities	9000000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	139000000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	179000000	USD
CY2019Q4	lkq	Share Priceofthe Equity Method Investment SharePriceoftheEquityMethodInvestment	93	SEK
CY2018	lkq	Fair Value Measured On Recurring Basis Gains Losses Included In Earnings FairValueMeasuredOnRecurringBasisGainsLossesIncludedInEarnings	5000000	USD
CY2017Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	23151000	USD
CY2018	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	43682000	USD
CY2018	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	43571000	USD
CY2018Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	23262000	USD
CY2019	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	58253000	USD
CY2019	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	56074000	USD
CY2019Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	25441000	USD
CY2019Q4	us-gaap	Self Insurance Reserve SelfInsuranceReserve	109000000	USD
CY2018Q4	us-gaap	Self Insurance Reserve SelfInsuranceReserve	105000000	USD
CY2019Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	54000000	USD
CY2018Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	52000000	USD
CY2018Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	65000000	USD
CY2018Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	500000000	USD
CY2019Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	500000000	USD
CY2019Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	1000000000.0	USD
CY2019	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	10900000	shares
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	292000000	USD
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	2300000	shares
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	60000000	USD
CY2019Q4	lkq	Stock Repurchase Program Remaining Authorized Repurchases Amount StockRepurchaseProgramRemainingAuthorizedRepurchasesAmount	648000000	USD
CY2019Q3	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	19000000	USD
CY2019Q4	lkq	Reedemable Nci Put Option ReedemableNCIPutOption	24000000	USD
CY2019Q4	lkq	Reedemable Nci Put Option ReedemableNCIPutOption	21000000	EUR
CY2019Q4	lkq	Redeemable Nci Call Option RedeemableNCICallOption	26000000	USD
CY2019Q4	lkq	Redeemable Nci Call Option RedeemableNCICallOption	23000000	EUR
CY2019Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	24000000	USD
CY2019	lkq	Percentage Threshold For Uncertain Tax Positions PercentageThresholdForUncertainTaxPositions	0.50
CY2019	us-gaap	Revenues Revenues	12506109000	USD
CY2018	us-gaap	Revenues Revenues	11876674000	USD
CY2017	us-gaap	Revenues Revenues	9736909000	USD
CY2017Q4	lkq	Deferred Service Type Warranty Revenue DeferredServiceTypeWarrantyRevenue	19465000	USD
CY2018	lkq	Deferred Service Type Revenue Additions DeferredServiceTypeRevenueAdditions	38736000	USD
CY2018	lkq	Deferred Service Type Revenue Recognized DeferredServiceTypeRevenueRecognized	-34195000	USD
CY2018Q4	lkq	Deferred Service Type Warranty Revenue DeferredServiceTypeWarrantyRevenue	24006000	USD
CY2019	lkq	Deferred Service Type Revenue Additions DeferredServiceTypeRevenueAdditions	43381000	USD
CY2019	lkq	Deferred Service Type Revenue Recognized DeferredServiceTypeRevenueRecognized	-40320000	USD
CY2019Q4	lkq	Deferred Service Type Warranty Revenue DeferredServiceTypeWarrantyRevenue	27067000	USD
CY2019Q4	us-gaap	Contract With Customer Refund Liability ContractWithCustomerRefundLiability	97000000	USD
CY2019Q4	us-gaap	Contract With Customer Right To Recover Product ContractWithCustomerRightToRecoverProduct	52000000	USD
CY2018Q4	us-gaap	Contract With Customer Refund Liability ContractWithCustomerRefundLiability	105000000	USD
CY2018Q4	us-gaap	Contract With Customer Right To Recover Product ContractWithCustomerRightToRecoverProduct	56000000	USD
CY2019Q4	lkq	Revenue Variable Consideration Reserve RevenueVariableConsiderationReserve	108000000	USD
CY2018Q4	lkq	Revenue Variable Consideration Reserve RevenueVariableConsiderationReserve	103000000	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	2000000	USD
CY2018	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	18000000	USD
CY2017	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	15000000	USD
CY2019	us-gaap	Restructuring Costs RestructuringCosts	18000000	USD
CY2018	us-gaap	Restructuring Costs RestructuringCosts	14000000	USD
CY2017	us-gaap	Restructuring Costs RestructuringCosts	5000000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	70000000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	10000000	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	270388	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	189204	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	235537	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	42.58
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	32.15
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	18000000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	21000000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	27695000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	22760000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	22832000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	27695000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	6227000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	5220000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	5459000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	21468000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	17540000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	17373000	USD
CY2019Q4	lkq	Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year One UnrecognizedStockBasedCompensationExpenseExpectedToBeRecognizeInYearOne	16776000	USD
CY2019Q4	lkq	Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Two UnrecognizedStockBasedCompensationExpenseExpectedToBeRecognizeInYearTwo	10863000	USD
CY2019Q4	lkq	Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Three UnrecognizedStockBasedCompensationExpenseExpectedToBeRecognizeInYearThree	6054000	USD
CY2019Q4	lkq	Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Four UnrecognizedStockBasedCompensationExpenseExpectedToBeRecognizeInYearFour	2641000	USD
CY2019Q4	lkq	Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Five UnrecognizedStockBasedCompensationExpenseExpectedToBeRecognizeInYearFive	182000	USD
CY2019Q4	lkq	Unrecognized Stock Based Compensation Expense Expected To Be Recognized Total UnrecognizedStockBasedCompensationExpenseExpectedToBeRecognizedTotal	36516000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	543415000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	487565000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	536974000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	310155000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	314428000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	308607000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	310969000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	315849000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	310649000	shares
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.75
CY2018	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.55
CY2017	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.74
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.75
CY2018	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.54
CY2017	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.73
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-267175000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	162262000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-8924000	USD
CY2017	lkq	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent Unrealized Loss Gains ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParentUnrealizedLossGains	-46571000	USD
CY2017	lkq	Reclassification From Aoci Current Period Attributable To Parent Deferred Income Tax ReclassificationFromAociCurrentPeriodAttributableToParentDeferredIncomeTax	17824000	USD
CY2017	lkq	Other Comprehensive Income Loss Before Reclassifications Disposal Of Business OtherComprehensiveIncomeLossBeforeReclassificationsDisposalOfBusiness	-1925000	USD
CY2017	lkq	Other Comprehensive Loss Income Before Reclassification Unconsolidated Subsidiary OtherComprehensiveLossIncomeBeforeReclassificationUnconsolidatedSubsidiary	-1309000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-70476000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-74346000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	4742000	USD
CY2018	lkq	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent Unrealized Loss Gains ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParentUnrealizedLossGains	37063000	USD
CY2018	lkq	Reclassification From Aoci Current Period Attributable To Parent Deferred Income Tax ReclassificationFromAociCurrentPeriodAttributableToParentDeferredIncomeTax	-8675000	USD
CY2018	lkq	Other Comprehensive Loss Income Before Reclassification Unconsolidated Subsidiary OtherComprehensiveLossIncomeBeforeReclassificationUnconsolidatedSubsidiary	-2343000	USD
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Reclassification From Aoci To Retained Earnings Tax Effect TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect	5345000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-174950000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-868000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-3000000	USD
CY2019	lkq	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent Unrealized Loss Gains ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParentUnrealizedLossGains	36468000	USD
CY2019	lkq	Reclassification From Aoci Current Period Attributable To Parent Deferred Income Tax ReclassificationFromAociCurrentPeriodAttributableToParentDeferredIncomeTax	-8544000	USD
CY2019	lkq	Other Comprehensive Income Loss Before Reclassifications Disposal Of Business OtherComprehensiveIncomeLossBeforeReclassificationsDisposalOfBusiness	-379000	USD
CY2019	lkq	Other Comprehensive Loss Income Before Reclassification Unconsolidated Subsidiary OtherComprehensiveLossIncomeBeforeReclassificationUnconsolidatedSubsidiary	-236000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-200885000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	40837000	USD
CY2018Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	39966000	USD
CY2019Q4	lkq	Other Debt OtherDebt	113010000	USD
CY2018Q4	lkq	Other Debt OtherDebt	117448000	USD
CY2019Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	4072026000	USD
CY2018Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	4347697000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	29990000	USD
CY2018Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	36906000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	280000	USD
CY2018Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	291000	USD
CY2019Q4	lkq	Debtand Capital Lease Obligations Net DebtandCapitalLeaseObligationsNet	4041756000	USD
CY2018Q4	lkq	Debtand Capital Lease Obligations Net DebtandCapitalLeaseObligationsNet	4310500000	USD
CY2019Q4	lkq	Longterm Debtand Capital Lease Obligations Current Net LongtermDebtandCapitalLeaseObligationsCurrentNet	326367000	USD
CY2018Q4	lkq	Longterm Debtand Capital Lease Obligations Current Net LongtermDebtandCapitalLeaseObligationsCurrentNet	121826000	USD
CY2019Q4	lkq	Long Term Debtand Capital Lease Obligations Excluding Current Portion Net LongTermDebtandCapitalLeaseObligationsExcludingCurrentPortionNet	3715389000	USD
CY2018Q4	lkq	Long Term Debtand Capital Lease Obligations Excluding Current Portion Net LongTermDebtandCapitalLeaseObligationsExcludingCurrentPortionNet	4188674000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	326648000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	133951000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	25912000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	21650000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	2427714000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1136151000	USD
CY2019Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	4072026000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	30000000	USD
CY2019Q4	lkq	Restrictive Payments Under Borrowing Agreement RestrictivePaymentsUnderBorrowingAgreement	1900000000	USD
CY2019Q4	lkq	Settlementof Notional Amounts SettlementofNotionalAmounts	-4000000	EUR
CY2019Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	2975000	USD
CY2019Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	3443000	USD
CY2019Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	970000	USD
CY2019Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	23349000	USD
CY2018Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	211000	USD
CY2018Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	22636000	USD
CY2018Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	127000	USD
CY2018Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	40870000	USD
CY2019Q4	lkq	Borrowings Under Credit Facility BorrowingsUnderCreditFacility	1600000000	USD
CY2018Q4	lkq	Borrowings Under Credit Facility BorrowingsUnderCreditFacility	1700000000	USD
CY2019Q4	us-gaap	Residual Value Of Leased Asset ResidualValueOfLeasedAsset	67000000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1308511000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	39077000	USD
CY2019Q4	lkq	Lease Rightof Use Asset LeaseRightofUseAsset	1347588000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	221527000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	9409000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1137597000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	31428000	USD
CY2019Q4	lkq	Lease Liability LeaseLiability	1399961000	USD
CY2019	us-gaap	Lease Cost LeaseCost	432509000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	294269000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	256172000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	210632000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	158763000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	131518000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	777165000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	1828519000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	288726000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	10121000	USD
CY2019Q4	lkq	Lease Liability Payments Due Next Twelve Months LeaseLiabilityPaymentsDueNextTwelveMonths	298847000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	249168000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	8743000	USD
CY2019Q4	lkq	Lease Liability Payments Due Year Two LeaseLiabilityPaymentsDueYearTwo	257911000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	200546000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	7166000	USD
CY2019Q4	lkq	Lease Liability Payments Due Year Three LeaseLiabilityPaymentsDueYearThree	207712000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	167858000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	3591000	USD
CY2019Q4	lkq	Lease Liability Payments Due Year Four LeaseLiabilityPaymentsDueYearFour	171449000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	138502000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	3138000	USD
CY2019Q4	lkq	Lease Liability Payments Due Year Five LeaseLiabilityPaymentsDueYearFive	141640000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	760030000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	19381000	USD
CY2019Q4	lkq	Lease Liability Payments Due After Year Five LeaseLiabilityPaymentsDueAfterYearFive	779411000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1804830000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	52140000	USD
CY2019Q4	lkq	Lease Liability Payments Due LeaseLiabilityPaymentsDue	1856970000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	445706000	USD
CY2019Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	11303000	USD
CY2019Q4	lkq	Lease Liability Undiscounted Excess Amount LeaseLiabilityUndiscountedExcessAmount	457009000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	1359124000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	40837000	USD
CY2019Q4	lkq	Lease Liability LeaseLiability	1399961000	USD
CY2019	lkq	Operating Lease Not Yet Commenced Expense OperatingLeaseNotYetCommencedExpense	144000000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	201492000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	91672000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	82852000	USD
CY2019	us-gaap	Defined Benefit Plan Business Combinations And Acquisitions Plan Assets DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets	0	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y6M
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P9Y2M12D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.052
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.041
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	297712000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	11744000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	13326000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	144142000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	201492000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	126031000	USD
CY2019	us-gaap	Defined Benefit Plan Business Combinations And Acquisitions Benefit Obligation DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation	2071000	USD
CY2018	us-gaap	Defined Benefit Plan Business Combinations And Acquisitions Benefit Obligation DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation	79211000	USD
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	3592000	USD
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	3215000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	4077000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	3476000	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Contributions By Plan Participant DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant	408000	USD
CY2018	us-gaap	Defined Benefit Plan Benefit Obligation Contributions By Plan Participant DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant	415000	USD
CY2019	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-32018000	USD
CY2018	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	989000	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	6849000	USD
CY2018	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	4447000	USD
CY2019	us-gaap	Defined Benefit Plan Curtailments DefinedBenefitPlanCurtailments	-6000	USD
CY2018	us-gaap	Defined Benefit Plan Curtailments DefinedBenefitPlanCurtailments	0	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Payment For Settlement DefinedBenefitPlanBenefitObligationPaymentForSettlement	8493000	USD
CY2018	us-gaap	Defined Benefit Plan Benefit Obligation Payment For Settlement DefinedBenefitPlanBenefitObligationPaymentForSettlement	756000	USD
CY2019	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	2922000	USD
CY2018	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	4664000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	225388000	USD
CY2018	us-gaap	Defined Benefit Plan Business Combinations And Acquisitions Plan Assets DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets	251000	USD
CY2019	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	2558000	USD
CY2018	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	3018000	USD
CY2019	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	4740000	USD
CY2018	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	9975000	USD
CY2019	us-gaap	Defined Benefit Plan Plan Assets Contributions By Plan Participant DefinedBenefitPlanPlanAssetsContributionsByPlanParticipant	408000	USD
CY2018	us-gaap	Defined Benefit Plan Plan Assets Contributions By Plan Participant DefinedBenefitPlanPlanAssetsContributionsByPlanParticipant	415000	USD
CY2019	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	6770000	USD
CY2018	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	2788000	USD
CY2019	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	-8493000	USD
CY2018	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	0	USD
CY2019	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	-810000	USD
CY2018	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	-2051000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	83305000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	91672000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-142083000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-109820000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	222607000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	199337000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	0	USD
CY2018Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	377000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	11754000	USD
CY2018Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	3280000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	130329000	USD
CY2018Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	106917000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	-142083000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	-109820000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	222607000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	169097000	USD
CY2017	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	2467000	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	0	USD
CY2019Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	83305000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	60988000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Projected Benefit Obligation DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation	225388000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Projected Benefit Obligation DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation	171185000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Plan Assets DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets	83305000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Plan Assets DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets	60988000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.014
CY2018Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.021
CY2019Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.017
CY2018Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.009
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	3592000	USD
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	3215000	USD
CY2017	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	4525000	USD
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	4077000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	3476000	USD
CY2017	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	3670000	USD
CY2019	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	2337000	USD
CY2018	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	2949000	USD
CY2018	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	0	USD
CY2017	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-181000	USD
CY2019	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-404000	USD
CY2018	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-54000	USD
CY2017	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	473000	USD
CY2019	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Curtailments DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments	0	USD
CY2018	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Curtailments DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments	0	USD
CY2017	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Curtailments DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments	-3811000	USD
CY2019	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1	378000	USD
CY2018	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1	-74000	USD
CY2017	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1	4000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	4550000	USD
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	3762000	USD
CY2017	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	2205000	USD
CY2019	lkq	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Service Cost Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostServiceCostRate	0.013
CY2018	lkq	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Service Cost Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostServiceCostRate	0.013
CY2017	lkq	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Service Cost Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostServiceCostRate	0.015
CY2019	lkq	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Interest Cost Rate Cost DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostInterestCostRateCost	0.025
CY2018	lkq	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Interest Cost Rate Cost DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostInterestCostRateCost	0.025
CY2017	lkq	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Interest Cost Rate Cost DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostInterestCostRateCost	0.030
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.018
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.019
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.013
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.031
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.048
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.050
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	42000000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Amortization Of Gain Loss Next Fiscal Year DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear	-1000000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	83305000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	91672000	USD
CY2019	us-gaap	Defined Benefit Plan Actual Return On Plan Assets Still Held DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld	1424000	USD
CY2018	us-gaap	Defined Benefit Plan Actual Return On Plan Assets Still Held DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld	2556000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-37486000	USD
CY2019	us-gaap	Defined Benefit Plan Purchases Sales And Settlements DefinedBenefitPlanPurchasesSalesAndSettlements	-1181000	USD
CY2018	us-gaap	Defined Benefit Plan Purchases Sales And Settlements DefinedBenefitPlanPurchasesSalesAndSettlements	-541000	USD
CY2019	us-gaap	Defined Benefit Plan Transfers Between Measurement Levels DefinedBenefitPlanTransfersBetweenMeasurementLevels	-19640000	USD
CY2018	us-gaap	Defined Benefit Plan Transfers Between Measurement Levels DefinedBenefitPlanTransfersBetweenMeasurementLevels	255000	USD
CY2019	lkq	Defined Benefit Plans Plan Assets Level3 Reconciliation Currency Translation DefinedBenefitPlansPlanAssetsLevel3ReconciliationCurrencyTranslation	-915000	USD
CY2018	lkq	Defined Benefit Plans Plan Assets Level3 Reconciliation Currency Translation DefinedBenefitPlansPlanAssetsLevel3ReconciliationCurrencyTranslation	-2056000	USD
CY2019	lkq	Defined Benefit Plan Plan Assets Contributionsby Employer Including Benefits Paidto Participants DefinedBenefitPlanPlanAssetsContributionsbyEmployerIncludingBenefitsPaidtoParticipants	5000000	USD
CY2020	lkq	Defined Benefit Plan Plan Assets Contributionsby Employer Including Benefits Paidto Participants DefinedBenefitPlanPlanAssetsContributionsbyEmployerIncludingBenefitsPaidtoParticipants	13000000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	43446000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	4357000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	4890000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	5003000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	5474000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	29946000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	101839000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	90216000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	196825000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	24925000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	25851000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	27149000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	81081000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	77508000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	58123000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	6376000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	207845000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	193575000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	282097000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	22173000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	14977000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	4386000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	4044000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-21064000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-21543000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-13095000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	215330000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	191395000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	235560000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	616842000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	562758000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	575148000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	174180000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	180673000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	191479000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	791022000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	743431000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	766627000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2019	lkq	Effective Income Tax Rate Reconciliation Effectof U.S.Federal Tax Reform Federal Deferred Tax Rate Change EffectiveIncomeTaxRateReconciliationEffectofU.S.FederalTaxReformFederalDeferredTaxRateChange	0
CY2018	lkq	Effective Income Tax Rate Reconciliation Effectof U.S.Federal Tax Reform Federal Deferred Tax Rate Change EffectiveIncomeTaxRateReconciliationEffectofU.S.FederalTaxReformFederalDeferredTaxRateChange	0
CY2017	lkq	Effective Income Tax Rate Reconciliation Effectof U.S.Federal Tax Reform Federal Deferred Tax Rate Change EffectiveIncomeTaxRateReconciliationEffectofU.S.FederalTaxReformFederalDeferredTaxRateChange	-0.095
CY2019	lkq	Effective Income Tax Rate Reconciliation Effectof U.S.Federal Tax Reform Transition Taxon Foreign Earnings EffectiveIncomeTaxRateReconciliationEffectofU.S.FederalTaxReformTransitionTaxonForeignEarnings	0.001
CY2018	lkq	Effective Income Tax Rate Reconciliation Effectof U.S.Federal Tax Reform Transition Taxon Foreign Earnings EffectiveIncomeTaxRateReconciliationEffectofU.S.FederalTaxReformTransitionTaxonForeignEarnings	-0.013
CY2017	lkq	Effective Income Tax Rate Reconciliation Effectof U.S.Federal Tax Reform Transition Taxon Foreign Earnings EffectiveIncomeTaxRateReconciliationEffectofU.S.FederalTaxReformTransitionTaxonForeignEarnings	0.066
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.032
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.035
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.028
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.014
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.009
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.032
CY2019	lkq	Effective Income Tax Rate Reconciliation Excess Tax Benefiton Stock Based Payments Percent EffectiveIncomeTaxRateReconciliationExcessTaxBenefitonStockBasedPaymentsPercent	-0.003
CY2018	lkq	Effective Income Tax Rate Reconciliation Excess Tax Benefiton Stock Based Payments Percent EffectiveIncomeTaxRateReconciliationExcessTaxBenefitonStockBasedPaymentsPercent	-0.006
CY2017	lkq	Effective Income Tax Rate Reconciliation Excess Tax Benefiton Stock Based Payments Percent EffectiveIncomeTaxRateReconciliationExcessTaxBenefitonStockBasedPaymentsPercent	-0.010
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.009
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.016
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.011
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.009
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.006
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.011
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.272
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.257
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.307
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	lkq	Tax Cutsand Jobs Actof2017 Transition Taxfor Accumulated Foreign Earnings Provisional Amount TaxCutsandJobsActof2017TransitionTaxforAccumulatedForeignEarningsProvisionalAmount	51000000	USD
CY2018	lkq	Tax Cutsand Jobs Actof2017 Transition Taxfor Accumulated Foreign Earnings Adjustment To Provisional Amount TaxCutsandJobsActof2017TransitionTaxforAccumulatedForeignEarningsAdjustmentToProvisionalAmount	10000000	USD
CY2019	lkq	Tax Cutsand Jobs Actof2017 Transition Taxfor Accumulated Foreign Earnings Adjustment To Provisional Amount TaxCutsandJobsActof2017TransitionTaxforAccumulatedForeignEarningsAdjustmentToProvisionalAmount	1000000	USD
CY2019	lkq	Tax Cutsand Jobs Actof2017 Transition Taxfor Accumulated Foreign Earnings TaxCutsandJobsActof2017TransitionTaxforAccumulatedForeignEarnings	42000000	USD
	lkq	Tax Cutsand Jobs Actsof2017 Transition Tax For Accumulated Foreign Earnings Payment Period TaxCutsandJobsActsof2017TransitionTaxForAccumulatedForeignEarningsPaymentPeriod	P8Y
CY2019Q4	lkq	Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Remaining TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsRemaining	33000000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	lkq	Tax Cutsand Jobs Actof2017 Incomplete Accounting Changein Tax Liability Provisional Income Tax Expense Benefit TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxLiabilityProvisionalIncomeTaxExpenseBenefit	73000000	USD
CY2019	lkq	Effective Income Tax Rate Reconciliation Gilti EffectiveIncomeTaxRateReconciliationGILTI	0.006
CY2018	lkq	Effective Income Tax Rate Reconciliation Gilti EffectiveIncomeTaxRateReconciliationGILTI	0.003
CY2019Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	743000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	51869000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	60337000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	31053000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	20525000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	12679000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	15474000	USD
CY2019Q4	lkq	Deferred Tax Assets Tax Deferred Accounts Receivable DeferredTaxAssetsTaxDeferredAccountsReceivable	14025000	USD
CY2018Q4	lkq	Deferred Tax Assets Tax Deferred Accounts Receivable DeferredTaxAssetsTaxDeferredAccountsReceivable	16208000	USD
CY2019Q4	lkq	Interest Expense Deduction Carry Forward InterestExpenseDeductionCarryForward	25448000	USD
CY2018Q4	lkq	Interest Expense Deduction Carry Forward InterestExpenseDeductionCarryForward	20392000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	4755000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	4859000	USD
CY2019	lkq	Deferred Tax Assets Operating Lease Assetsnet DeferredTaxAssetsOperatingLeaseAssetsnet	303705000	USD
CY2018	lkq	Deferred Tax Assets Operating Lease Assetsnet DeferredTaxAssetsOperatingLeaseAssetsnet	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	16287000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	13222000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	11777000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	12370000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	471598000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	163387000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	41815000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	34779000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	429783000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	128608000	USD
CY2019Q4	lkq	Deferred Tax Liabilities Goodwill And Intangible Assets Excluding Trade Name Intangible DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsExcludingTradeNameIntangible	219879000	USD
CY2018Q4	lkq	Deferred Tax Liabilities Goodwill And Intangible Assets Excluding Trade Name Intangible DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsExcludingTradeNameIntangible	216699000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	100461000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	87839000	USD
CY2019Q4	lkq	Deferred Tax Liabilities Trade Name Intangible DeferredTaxLiabilitiesTradeNameIntangible	108039000	USD
CY2018Q4	lkq	Deferred Tax Liabilities Trade Name Intangible DeferredTaxLiabilitiesTradeNameIntangible	116615000	USD
CY2019	lkq	Deferred Tax Liabilities Operating Lease Liabilities DeferredTaxLiabilitiesOperatingLeaseLiabilities	292498000	USD
CY2018	lkq	Deferred Tax Liabilities Operating Lease Liabilities DeferredTaxLiabilitiesOperatingLeaseLiabilities	0	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	8916000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	15511000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	729793000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	436664000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	300010000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	308056000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	10119000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	3378000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	310129000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	311434000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	16000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	13000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1000000	USD
CY2019Q4	lkq	Interest Expense Deduction Carry Forward InterestExpenseDeductionCarryForward	25000000	USD
CY2018Q4	lkq	Interest Expense Deduction Carry Forward InterestExpenseDeductionCarryForward	20000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	42000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	35000000	USD
CY2019	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	7000000	USD
CY2019Q4	lkq	Valuation Allowanceduetointerestexpensedeductions ValuationAllowanceduetointerestexpensedeductions	5000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1237000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1690000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2146000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	1376000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	73000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	50000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	297000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	458000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	534000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Foreign Currency Translation UnrecognizedTaxBenefitsDecreasesResultingFromForeignCurrencyTranslation	-49000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Foreign Currency Translation UnrecognizedTaxBenefitsDecreasesResultingFromForeignCurrencyTranslation	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Foreign Currency Translation UnrecognizedTaxBenefitsDecreasesResultingFromForeignCurrencyTranslation	0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2317000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1237000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1690000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	1000000	USD
CY2019Q4	lkq	Unrecognized Tax Benefits That Would Impact Deferred Taxes UnrecognizedTaxBenefitsThatWouldImpactDeferredTaxes	1000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1000000	USD
CY2019Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	1000000	USD
CY2019	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3
CY2017	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-100620000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	128000	USD
CY2019	us-gaap	Revenues Revenues	12506109000	USD
CY2019	lkq	Segment Ebitda SegmentEBITDA	1328361000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	314406000	USD
CY2018	us-gaap	Revenues Revenues	11876674000	USD
CY2018	lkq	Segment Ebitda SegmentEBITDA	1251399000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	294077000	USD
CY2017	us-gaap	Revenues Revenues	9736909000	USD
CY2017	lkq	Segment Ebitda SegmentEBITDA	1116590000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	230203000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	545034000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	483168000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	530228000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	2800000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	3050000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-3516000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	974000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	541260000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	480118000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	533744000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	1619000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-4397000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-6746000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	974000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	540615000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	484515000	USD
CY2017	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	540490000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	290770000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	274213000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	219546000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	21007000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	19864000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	10657000	USD
CY2019	lkq	Depreciationand Amortization Restructuring Expense Costof Goods Sold DepreciationandAmortizationRestructuringExpenseCostofGoodsSold	305000	USD
CY2018	lkq	Depreciationand Amortization Restructuring Expense Costof Goods Sold DepreciationandAmortizationRestructuringExpenseCostofGoodsSold	0	USD
CY2017	lkq	Depreciationand Amortization Restructuring Expense Costof Goods Sold DepreciationandAmortizationRestructuringExpenseCostofGoodsSold	0	USD
CY2019	lkq	Depreciationand Amortization Restructuring Expenses DepreciationandAmortizationRestructuringExpenses	2324000	USD
CY2018	lkq	Depreciationand Amortization Restructuring Expenses DepreciationandAmortizationRestructuringExpenses	0	USD
CY2017	lkq	Depreciationand Amortization Restructuring Expenses DepreciationandAmortizationRestructuringExpenses	0	USD
CY2019	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-136274000	USD
CY2018	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-144536000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1350000	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-456000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	215330000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	191395000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	235560000	USD
CY2019	lkq	Earnings Before Interest Taxes Depreciation And Amortization EarningsBeforeInterestTaxesDepreciationAndAmortization	1206497000	USD
CY2018	lkq	Earnings Before Interest Taxes Depreciation And Amortization EarningsBeforeInterestTaxesDepreciationAndAmortization	1115873000	USD
CY2017	lkq	Earnings Before Interest Taxes Depreciation And Amortization EarningsBeforeInterestTaxesDepreciationAndAmortization	1107329000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-32277000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-64471000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5907000	USD
CY2019	us-gaap	Other Nonrecurring Gain OtherNonrecurringGain	-12063000	USD
CY2018	us-gaap	Other Nonrecurring Gain OtherNonrecurringGain	0	USD
CY2017	us-gaap	Other Nonrecurring Gain OtherNonrecurringGain	0	USD
CY2019	lkq	Bargain Purchase On Business Combination And Gain Loss On Previously Held Equity Interests And Investments BargainPurchaseOnBusinessCombinationAndGainLossOnPreviouslyHeldEquityInterestsAndInvestments	1157000	USD
CY2018	lkq	Bargain Purchase On Business Combination And Gain Loss On Previously Held Equity Interests And Investments BargainPurchaseOnBusinessCombinationAndGainLossOnPreviouslyHeldEquityInterestsAndInvestments	2418000	USD
CY2017	lkq	Bargain Purchase On Business Combination And Gain Loss On Previously Held Equity Interests And Investments BargainPurchaseOnBusinessCombinationAndGainLossOnPreviouslyHeldEquityInterestsAndInvestments	3870000	USD
CY2019	lkq	Restructuring Charges And Business Combination Acquisition Related Costsnetof Restructuring Depreciation RestructuringChargesAndBusinessCombinationAcquisitionRelatedCostsnetofRestructuringDepreciation	34658000	USD
CY2018	lkq	Restructuring Charges And Business Combination Acquisition Related Costsnetof Restructuring Depreciation RestructuringChargesAndBusinessCombinationAcquisitionRelatedCostsnetofRestructuringDepreciation	32428000	USD
CY2017	lkq	Restructuring Charges And Business Combination Acquisition Related Costsnetof Restructuring Depreciation RestructuringChargesAndBusinessCombinationAcquisitionRelatedCostsnetofRestructuringDepreciation	19672000	USD
CY2019	lkq	Costof Goods Sold Restructuring Charges CostofGoodsSoldRestructuringCharges	20654000	USD
CY2018	lkq	Costof Goods Sold Restructuring Charges CostofGoodsSoldRestructuringCharges	0	USD
CY2017	lkq	Costof Goods Sold Restructuring Charges CostofGoodsSoldRestructuringCharges	0	USD
CY2019	lkq	Business Combination Adjustment Inventory BusinessCombinationAdjustmentInventory	0	USD
CY2018	lkq	Business Combination Adjustment Inventory BusinessCombinationAdjustmentInventory	403000	USD
CY2017	lkq	Business Combination Adjustment Inventory BusinessCombinationAdjustmentInventory	3584000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	47102000	USD
CY2018	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	35682000	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2019	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	393000	USD
CY2018	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-208000	USD
CY2017	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-4218000	USD
CY2019	lkq	Segment Ebitda SegmentEBITDA	1328361000	USD
CY2018	lkq	Segment Ebitda SegmentEBITDA	1251399000	USD
CY2017	lkq	Segment Ebitda SegmentEBITDA	1116590000	USD
CY2019	lkq	Depreciationand Amortization Restructuring Expenses DepreciationandAmortizationRestructuringExpenses	2000000	USD
CY2019Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	1131132000	USD
CY2018Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	1154083000	USD
CY2017Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	1027106000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	2772777000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	265730000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	250027000	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	179090000	USD
CY2019Q1	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	15000000	USD
CY2019Q2	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	33000000	USD
CY2019Q4	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	2000000	USD
CY2019Q3	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	-4000000	USD
CY2018Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	33000000	USD
CY2018Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	4000000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	2836075000	USD
CY2017Q4	us-gaap	Inventory Net InventoryNet	2380783000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1234400000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1220162000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	913089000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1308511000	USD
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
CY2017Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	139243000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	179169000	USD
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	208404000	USD
CY2019Q4	lkq	Other Unallocated Assets OtherUnallocatedAssets	6193893000	USD
CY2018Q4	lkq	Other Unallocated Assets OtherUnallocatedAssets	6003913000	USD
CY2017Q4	lkq	Other Unallocated Assets OtherUnallocatedAssets	4837490000	USD
CY2019Q4	us-gaap	Assets Assets	12779956000	USD
CY2018Q4	us-gaap	Assets Assets	11393402000	USD
CY2017Q4	us-gaap	Assets Assets	9366872000	USD
CY2019	us-gaap	Revenues Revenues	12506109000	USD
CY2018	us-gaap	Revenues Revenues	11876674000	USD
CY2017	us-gaap	Revenues Revenues	9736909000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	2542911000	USD
CY2018Q4	us-gaap	Noncurrent Assets NoncurrentAssets	1220162000	USD
CY2017Q4	us-gaap	Noncurrent Assets NoncurrentAssets	913089000	USD
CY2019	us-gaap	Revenues Revenues	12506109000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	7654315000	USD
CY2019	us-gaap	Gross Profit GrossProfit	4851794000	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	3580300000	USD
CY2019	lkq	Restructuring Charges And Business Combination Acquisition Related Costs RestructuringChargesAndBusinessCombinationAcquisitionRelatedCosts	36979000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	47102000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	290770000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	896643000	USD
CY2019	us-gaap	Interest And Debt Expense InterestAndDebtExpense	138504000	USD
CY2019	lkq	Interest Income Expense Related Party Net InterestIncomeExpenseRelatedPartyNet	0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	128000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	32755000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-105621000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	791022000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	215330000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-32277000	USD
CY2019	us-gaap	Income Loss From Subsidiaries Net Of Tax IncomeLossFromSubsidiariesNetOfTax	0	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	543415000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	1619000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	545034000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	2800000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	974000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	541260000	USD
CY2018	us-gaap	Revenues Revenues	11876674000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	7301817000	USD
CY2018	us-gaap	Gross Profit GrossProfit	4574857000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	3352731000	USD
CY2018	lkq	Restructuring Charges And Business Combination Acquisition Related Costs RestructuringChargesAndBusinessCombinationAcquisitionRelatedCosts	32428000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	33244000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	274213000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	882241000	USD
CY2018	us-gaap	Interest And Debt Expense InterestAndDebtExpense	146377000	USD
CY2018	lkq	Interest Income Expense Related Party Net InterestIncomeExpenseRelatedPartyNet	0	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1350000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	8917000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-138810000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	743431000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	191395000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-64471000	USD
CY2018	us-gaap	Income Loss From Subsidiaries Net Of Tax IncomeLossFromSubsidiariesNetOfTax	0	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	487565000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-4397000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	483168000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	3050000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	480118000	USD
CY2017	us-gaap	Revenues Revenues	9736909000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	5937286000	USD
CY2017	us-gaap	Gross Profit GrossProfit	3799623000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2715407000	USD
CY2017	lkq	Restructuring Charges And Business Combination Acquisition Related Costs RestructuringChargesAndBusinessCombinationAcquisitionRelatedCosts	19672000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	219546000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	844998000	USD
CY2017	us-gaap	Interest And Debt Expense InterestAndDebtExpense	101640000	USD
CY2017	lkq	Interest Income Expense Related Party Net InterestIncomeExpenseRelatedPartyNet	0	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-456000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	23725000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-78371000	USD
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Files In Submission

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$LKQ
LKQ CORP Stock $lkq

2019 Form 10-K Financial Statement

#000106569620000008 Filed on February 27, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LKQ LKQ CORP Stock $lkq

2019 Form 10-K Financial Statement

#000106569620000008 Filed on February 27, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LKQ
LKQ CORP Stock $lkq