Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Intangible Assets

Summary of the changes in the carrying amount of goodwill and other indefinite-lived intangible assets

			Other Indefinite
			Lived Intangible
	Goodwill		Assets
Balance — December 31, 2015	$	1,323.1	$	408.0
Additions		24.9		26.2
Disposals		(1.7)		(0.3)
Foreign currency translation		(55.1)		(13.8)
Balance — December 31, 2016	$	1,291.2	$	420.1
Additions		324.8		40.8
Disposals		(4.5)		(1.7)
Foreign currency translation		49.0		14.8
Balance — December 31, 2017	$	1,660.5	$	474.0

Summary of the changes in the carrying amount of goodwill by reportable segment

			Retail
	Retail		Commercial
	Automotive		Truck		Other		Total
Balance — December 31, 2015	$	1,095.6	$	147.5	$	80.0	$	1,323.1
Additions		9.8		15.1		—		24.9
Disposals		(0.2)		—		(1.5)		(1.7)
Foreign currency translation		(55.0)		(0.6)		0.5		(55.1)
Balance — December 31, 2016	$	1,050.2	$	162.0	$	79.0	$	1,291.2
Additions		324.8		—		—		324.8
Disposals		(4.5)		—		—		(4.5)
Foreign currency translation		41.6		1.0		6.4		49.0
Balance — December 31, 2017	$	1,412.1	$	163.0	$	85.4	$	1,660.5