Sublimit for the Issuance of Letters of Credit

No definition available.

Name:	lkq_SublimitForTheIssuanceOfLettersOfCredit
Namespace Prefix:	lkq_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sublimit for the Issuance of Swing Line Loans

+ References

No definition available.

+ Details

Name:	lkq_SublimitForTheIssuanceOfSwingLineLoans
Namespace Prefix:	lkq_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Unsecured Term Loan Facility

+ References

No definition available.

+ Details

Name:	lkq_UnsecuredTermLoanFacility
Namespace Prefix:	lkq_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_DebtInstrumentFeeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Subparagraph (SX 210.5-02.22(a)(1))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph e
-SubTopic 470
-Topic 942
-Publisher FASB
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+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ExtinguishmentOfDebtLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
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-Name Accounting Standards Codification
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Section S99
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-4

+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

+ Details

Name:	us-gaap_UnsecuredDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LongtermDebtTypeAxis=lkq_EuroNotes2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=lkq_EuroNotes2028Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=lkq_USNote2028Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=lkq_USNotes2033Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=lkq_SeniorUnsecuredTermLoanCreditAgreementCADNoteMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=lkq_UniSelectIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=lkq_EuroNotes2031Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=lkq_SeniorUnsecuredCreditAgreementRevolvingCreditFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=lkq_TwentyTwentyFourDomain
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Long-Term Obligations - Additional Information (Details) € in Millions, $ in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)	Mar. 13, 2024 EUR (€)	Dec. 31, 2023 USD ($)	Mar. 27, 2023 CAD ($)	Jan. 05, 2023 USD ($)
Euro Notes (2024)
Long-Term Obligations - Additional Information [Line Items]
Long-term Debt	$ 0		$ 552
Interest rate	0.00%	3.875%	3.88%
Euro Notes (2028)
Long-Term Obligations - Additional Information [Line Items]
Long-term Debt	$ 270		$ 276
Interest rate	4.13%		4.13%
U.S. Notes (2028)
Long-Term Obligations - Additional Information [Line Items]
Long-term Debt	$ 800		$ 800
Interest rate	5.75%		5.75%
U.S. Notes (2033)
Long-Term Obligations - Additional Information [Line Items]
Long-term Debt	$ 600		$ 600
Interest rate	6.25%		6.25%
Senior Unsecured Term Loan Credit Agreement (CAD Note)
Long-Term Obligations - Additional Information [Line Items]
Term loan payable	$ 517		$ 529
Interest rate	6.67%		6.82%
Senior Unsecured Term Loan Credit Agreement (CAD Note) \| Uni-Select Inc.
Long-Term Obligations - Additional Information [Line Items]
Term loan payable				$ 700
Euro Notes (2031)
Long-Term Obligations - Additional Information [Line Items]
Long-term Debt	$ 809	€ 750	$ 0
Interest rate	4.13%	4.125%	0.00%
Debt Instrument, Fee Amount	$ 7
Debt Instrument, Redemption Price, Percentage	100.00%
Senior Unsecured Credit Agreement \| Revolving Credit Facility
Long-Term Obligations - Additional Information [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					$ 2,000
Sublimit for the Issuance of Letters of Credit					150
Sublimit for the Issuance of Swing Line Loans					150
Unsecured Term Loan Facility					$ 500
Twenty Twenty Four [Domain] \| Euro Notes (2024)
Long-Term Obligations - Additional Information [Line Items]
Long-term Debt \| €		€ 500