Income Taxes Income Taxes - Operating Loss Carryforwards (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Valuation Allowance	$ 1.5
Deferred Tax Assets, Operating Loss Carryforwards	5.5
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	537.4
Foreign Tax Credits	158.2
Non-U.S. Tax Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	64.1
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	35.4
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration	28.7
Income Tax Holiday, Aggregate Dollar Amount	$ 21.8