Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Tax Disclosure [Abstract]
Effective income tax rate, continuing operations		26.00%	31.00%
Tax Benefit Associated With Disposal Activities And Restructuring	$ 3.5		$ 2.0
Tax benefit associated with loss on disposal	11.2
Tax Benefit Associated With Restructuring	7.7
Tax benefit of project termination settlement		3.8
Tax benefit associated with retirement obligations		2.1
Other Tax Adjustments		7.3
Tax benefit of research and development and international tax credit extensions		6.6
Other Tax Expense (Benefit)		3.1
Valuation Allowance, Deferred Tax Asset, Change in Amount		2.5
Tax impact of other tax adjustments		4.9	15.9
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount			8.2
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount			$ 7.7