Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 186	$ 282	$ 344	$ 552
Less: net income attributable to noncontrolling interest	1	1	1	1
Net income attributable to LKQ stockholders	185	281	343	551
Other comprehensive income (loss):
Foreign currency translation, net of tax	(21)	34	(78)	91
Net change in unrealized gains/losses on cash flow hedges, net of tax	1	10	5	(7)
Other comprehensive income from unconsolidated subsidiaries	5	1	0	4
Other comprehensive (loss) income	(15)	45	(73)	88
Comprehensive income	171	327	271	640
Less: comprehensive income attributable to noncontrolling interest	1	1	1	1
Comprehensive income attributable to LKQ stockholders	$ 170	$ 326	$ 270	$ 639