Income Taxes Income Taxes - Operating Loss Carryforwards (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 63.4
Net operating loss and capital loss carryforwards	81.8	$ 59.4
State Operating Loss Carryforwards	833.2
Unremitted foreign earnings	32.5
Undistributed Earnings of Foreign Subsidiaries	3,300.0
U.S. Federal
Operating Loss Carryforwards [Line Items]
Foreign tax credit carryforwards	142.6
Non-U.S. Tax Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	165.4
Operating Loss Carryforwards subject to expiration	130.6
Operating Loss Carryforwards not subject to expiration	34.8
Operating Loss Carryforwards valuation allowance	25.5
Net operating loss and capital loss carryforwards	95.8
Non-U.S. income tax holidays	21.2	$ 23.6
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards valuation allowance	$ 591.6