Goodwill and Other Intangibles - Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross	$ 290.6		$ 299.2
Amortized intangible assets, accumulated amortization	150.8		129.1		98.4
Amortized intangible assets, net	139.8		170.1
Other intangible assets	169.5		206.3
Amortization of intangible assets and other	26.7		28.4		30.8
Amortized intangible assets, future amortization expense [Abstract]
Future Amortization Expense - 2014	25.4
Future Amortization Expense - 2015	16.4
Future Amortization Expense - 2016	16.3
Future Amortization Expense - 2017	14.9
Future Amortization Expense - 2018	13.3
Intangible assets (excluding goodwill), gross [Roll Forward]
Beginning balance, January 1	335.4		341.7
Impairment	(26.4)	[1]
Divestiture	(1.1)	[2]	(15.7)	[2]
Translation adjustment	12.4		9.4
Ending balance, December 31	320.3		335.4		341.7
Intangible assets, accumulated amortization [Roll Forward]
Beginning balance, January 1	129.1		98.4
Impairment	(13.9)	[1]
Divestiture	(0.4)	[2]	(0.6)	[2]
Translation adjustment	9.3		2.9
Ending balance, December 31	150.8		129.1		98.4
Patented and unpatented technology [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross	85.9		80.0
Amortized intangible assets, accumulated amortization	36.5		26.2
Amortized intangible assets, net	49.4		53.8
Intangible assets, accumulated amortization [Roll Forward]
Ending balance, December 31	36.5		26.2
Customer relationships
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross	201.8		216.3
Amortized intangible assets, accumulated amortization	111.4		100.0
Amortized intangible assets, net	90.4		116.3
Intangible assets, accumulated amortization [Roll Forward]
Ending balance, December 31	111.4		100.0
Miscellaneous amortizable assets
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross	2.9		2.9
Amortized intangible assets, accumulated amortization	2.9		2.9
Intangible assets, accumulated amortization [Roll Forward]
Ending balance, December 31	2.9		2.9
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]
Unamortized trade names	$ 18.9		$ 25.4
Minimum [Member]
Amortized intangible assets, future amortization expense [Abstract]
Amortized intangible assets, useful life	3 years
Maximum [Member]
Amortized intangible assets, future amortization expense [Abstract]
Amortized intangible assets, useful life	15 years

[1] *Impairment relates to Drivetrain customer relationships and Engine unamortized trade names. The impairment charges are recorded in restructuring expense in Other expense (income).

[2] Divestitures relate to the Company's 2012 sale of the spark plug business.