Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Tax Information [Line Items]
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions									$ 3.9	$ 0.3
Earnings before income taxes and the provision for income taxes
Earnings before taxes	185.4	193.1	217.1	170.3	146.2	115.7	113.7	102.3	765.9	477.9	17.9
Current:
Federal/foreign									194.7	131.7	40.0
State									1.7	2.2	1.5
Total current									196.4	133.9	41.5
Deferred income tax benefit									(1.1)	(52.2)	(60.0)
Provision (benefit) for income taxes	58.2	46.4	49.8	40.9	30.6	4.2	26.0	20.9	195.3	81.7	(18.5)
Effective Tax Rate - Percentage									25.50%	17.10%	(103.40%)
Tax impact of patent infringement settlement									11.0
Tax impact of loss on disposals									2.7
Other Tax Adjustments									6.2
Favorable Impact Due Reversal Of Company Valuation Allowance										21.2
Additional tax expense for company's loss of future tax benefit				2.5						2.9
Tax impact of equity investment gain										2.3
Tax impact of environmental litigation settlement										9.8
Deferred Tax Assets, Investment in Subsidiaries	1,800.0								1,800.0
U.S. Federal Tax Jurisdiction [Member]
Earnings before income taxes and the provision for income taxes
Loss before income taxes - U.S.									119.2	(26.7)	(138.5)
Current:
Federal/foreign									31.8	14.0	(2.7)
State									1.7	2.2	1.5
Total current									33.5	16.2	(1.2)
Deferred income tax benefit									17.4	(48.9)	(51.6)
Provision (benefit) for income taxes									50.9	(32.7)	(52.8)
Effective Tax Rate - Percentage									42.70%	(122.50%)	(38.10%)
Non-U.S. Tax Jurisdiction [Member]
Earnings before income taxes and the provision for income taxes
Earnings before income taxes - Non-U.S.									646.7	504.6	156.4
Current:
Federal/foreign									162.9	117.7	42.7
State									0	0	0
Total current									162.9	117.7	42.7
Deferred income tax benefit									(18.5)	(3.3)	(8.4)
Provision (benefit) for income taxes									$ 144.4	$ 114.4	$ 34.3
Effective Tax Rate - Percentage									22.30%	22.70%	21.90%