Segment Information (Tables)

6 Months Ended

Jun. 30, 2013

Segment Reporting [Abstract]

Reconciliation Of Revenue From Segments To Consolidated

Reportable segment revenue and segment income are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2013		2012		2013		2012
Revenue:
Domestic	$	1,515.3	$	1,295.1	$	2,893.3	$	2,524.2
Import	1,629.3		1,475.8		3,133.0		2,842.4
Premium Luxury	1,242.4		1,093.4		2,415.3		2,115.6
Total segment revenue	4,387.0		3,864.3		8,441.6		7,482.2
Corporate and other	39.5		40.2		81.3		79.3
Total consolidated revenue	$	4,426.5	$	3,904.5	$	8,522.9	$	7,561.5

Reconciliation Of Income (Loss) From Segments To Consolidated

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2013			2012			2013			2012
Segment income*:
Domestic	$	66.1		$	53.6		$	124.7		$	103.3
Import	72.9			67.2			143.9			129.1
Premium Luxury	75.7			68.3			144.5			127.1
Total segment income	214.7			189.1			413.1			359.5
Corporate and other	(47.4		)	(35.7		)	(89.3		)	(68.1		)
Other interest expense	(22.0		)	(22.5		)	(44.3		)	(43.0		)
Interest income	—			0.1			0.1			0.2
Other income (loss), net	1.3			(1.4		)	2.9			0.6
Income from continuing operations before income taxes	$	146.6		$	129.6		$	282.5		$	249.2

* Segment income for each of our segments is defined as operating income less floorplan interest expense.