Employee Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
Employee Benefit Plans (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax	$ (15)
Defined Benefit Plan, Plan Assets, Contributions by Employer	8	$ 7
Defined Benefit Plan, Plan Assets, Estimated Future Contributions by Employer Including Benefits Paid to Participants	8
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	$ (2)

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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+ Details

- 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.

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+ Details

LKQ CORP 10-K