Recent Transactions (Details) In Millions, unless otherwise specified	3 Months Ended			0 Months Ended		3 Months Ended			3 Months Ended		3 Months Ended
	Mar. 31, 2014 USD ($)	Mar. 31, 2013 USD ($)	Dec. 31, 2013 USD ($)	Feb. 28, 2014 Wahler USD ($)	Feb. 28, 2014 Wahler EUR (€)	Mar. 31, 2014 Wahler USD ($)	Mar. 31, 2014 Wahler Customer Relationships [Member]	Feb. 28, 2014 Wahler Customer Relationships [Member] USD ($)	Mar. 31, 2014 Wahler Know-how [Member]	Feb. 28, 2014 Wahler Know-how [Member] USD ($)	Mar. 31, 2014 Wahler Patented technology [Member]	Feb. 28, 2014 Wahler Patented technology [Member] USD ($)	Feb. 28, 2014 Trade Names [Member] Wahler USD ($)
Business Acquisition [Line Items]
Equity interest acquired				100.00%	100.00%
Liabilities assumed from business acquired	$ 3.2	$ 0				$ 3.2
Debt assumed from business acquired	33.3	0				33.3
Aggregated estimated fair value of assets acquired and liabilities assumed
Receivables, net				52.4
Inventories, net				50.9
Property, plant and equipment, net				55.7
Goodwill	1,244.8		1,197.0	47.3
Other intangible assets, net of tax				36.6				18.8		10.2		4.1	3.5
Other assets and liabilities				(28.6)
Accounts payable and accrued expenses				(71.4)
Total consideration, net of cash acquired				142.9
Less: Assumed retirement-related liabilities				3.2
Less: Assumed debt				33.3
Cash paid, net of cash acquired	106.4	0		106.4	77.1
Weighted average useful life							15 years		15 years		7 years
Nondeductible amount of goodwill				$ 25.4