Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 262	$ 284	$ 955	$ 856
Less: net income attributable to continuing noncontrolling interest	0	0	0	1
Net income attributable to LKQ stockholders	262	284	955	855
Other comprehensive loss:
Foreign currency translation, net of tax	(187)	(48)	(391)	(51)
Net change in unrealized gains/losses on cash flow hedges, net of tax	0	0	0	1
Net change in unrealized gains/losses on pension plans, net of tax	1	0	1	1
Other comprehensive income (loss) from unconsolidated subsidiaries	2	0	4	(1)
Other comprehensive loss	(184)	(48)	(386)	(50)
Comprehensive income	78	236	569	806
Less: comprehensive income attributable to continuing noncontrolling interest	0	0	0	1
Comprehensive income attributable to LKQ stockholders	$ 78	$ 236	$ 569	$ 805