Goodwill and Other Intangibles - Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross	$ 299.2		$ 297.4
Amortized intangible assets, accumulated amortization	129.1		98.4		75.5
Amortized intangible assets, net	170.1		199.0
Other intangible assets	206.3		243.3
Amortization of intangible assets and other	28.4		30.8		28.4
Amortized intangible assets, future amortization expense [Abstract]
Future Amortization Expense - 2013	26.8
Future Amortization Expense - 2014	26.8
Future Amortization Expense - 2015	18.1
Future Amortization Expense - 2016	17.6
Future Amortization Expense - 2017	15.9
Intangible assets (excluding goodwill), gross [Roll Forward]
Beginning balance, January 1	341.7		244.3
Acquisitions	0		117.2
Divestiture	15.7	[1]	5.6	[1]
Translation adjustment	9.4		(14.2)
Ending balance, December 31	335.4		341.7		244.3
Intangible assets, accumulated amortization [Roll Forward]
Beginning balance, January 1	98.4		75.5
Divestiture	(0.6)	[1]	(3.8)	[1]
Translation adjustment	2.9		(4.1)
Ending balance, December 31	129.1		98.4		75.5
Patented and unpatented technology [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross	80.0		81.2
Amortized intangible assets, accumulated amortization	26.2		20.4
Amortized intangible assets, net	53.8		60.8
Intangible assets, accumulated amortization [Roll Forward]
Ending balance, December 31	26.2		20.4
Customer relationships
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross	216.3		213.4
Amortized intangible assets, accumulated amortization	100.0		76.7
Amortized intangible assets, net	116.3		136.7
Intangible assets, accumulated amortization [Roll Forward]
Ending balance, December 31	100.0		76.7
Miscellaneous amortizable assets
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross	2.9		2.8
Amortized intangible assets, accumulated amortization	2.9		1.3
Amortized intangible assets, net	0		1.5
Intangible assets, accumulated amortization [Roll Forward]
Ending balance, December 31	2.9		1.3
In-process research and development
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Indefinite-lived intangible assets (excluding goodwill)	10.8		10.8
Unamortized trade names
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Indefinite-Lived Trade Names	$ 25.4		$ 33.5
Minimum [Member]
Amortized intangible assets, future amortization expense [Abstract]
Amortized intangible assets, useful life, minimum	3 years
Maximum [Member]
Amortized intangible assets, future amortization expense [Abstract]
Amortized intangible assets, useful life, minimum	15 years

[1] Divestitures relate to the Company's 2011 sale of the tire pressure monitoring business and 2012 sale of the spark plug business.