Goodwill and Other Intangibles - Intangible Assets (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015		Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross						$ 624.6	$ 289.4
Amortized intangible assets, accumulated amortization		$ 156.7		$ 150.8	$ 150.8	161.5	156.7
Amortized intangible assets, net						463.1	132.7
Other intangible assets, net						543.8	151.1
Amortized intangible assets, future amortization expense [Abstract]
Future Amortization Expense - 2016						40.4
Future Amortization Expense - 2017						39.2
Future Amortization Expense - 2018						37.9
Future Amortization Expense - 2019						37.4
Future Amortization Expense - 2020						37.0
Intangible assets (excluding goodwill), gross [Roll Forward]
Beginning balance, January 1		307.8		320.3
Acquisitions		423.8	[1]	42.7
Impairment	[1]	0.0		(10.3)
Translation adjustment		(26.3)		(44.9)
Ending balance, December 31		705.3		307.8	320.3
Intangible assets, accumulated amortization [Roll Forward]
Beginning balance, January 1		156.7		150.8
Amortization		19.2		27.2	26.7
Translation adjustment		(14.4)		(21.3)
Ending balance, December 31		161.5		156.7	$ 150.8
Patented and unpatented technology [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross						128.7	89.3
Amortized intangible assets, accumulated amortization		39.1		39.1		42.4	39.1
Amortized intangible assets, net						86.3	50.2
Intangible assets, accumulated amortization [Roll Forward]
Beginning balance, January 1		39.1
Ending balance, December 31		42.4		39.1
Customer relationships
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross						490.3	194.3
Amortized intangible assets, accumulated amortization		115.1		115.1		116.1	115.1
Amortized intangible assets, net						374.2	79.2
Intangible assets, accumulated amortization [Roll Forward]
Beginning balance, January 1		115.1
Ending balance, December 31		116.1		115.1
Miscellaneous amortizable assets
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortized intangible assets, gross						5.6	5.8
Amortized intangible assets, accumulated amortization		2.5		2.5		3.0	2.5
Amortized intangible assets, net						2.6	3.3
Intangible assets, accumulated amortization [Roll Forward]
Beginning balance, January 1		2.5
Ending balance, December 31		$ 3.0		$ 2.5
In-process research and development
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Indefinite-lived intangible assets (excluding goodwill)						14.6	10.8
Unamortized trade names
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Unamortized trade names						$ 66.1	$ 7.6
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] *Acquisitions relate to the Company's 2015 purchases of Remy and BERU Diesel and the 2014 purchase of Gustav Wahler GmbH u. Co. KG and its general partner.** Impairment relates to Engine unamortized trade names. The impairment charge is recorded in Other expense, net.