Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Tax Credit Carryforward [Line Items]
Deferred tax asset, reclassification		$ 137.1
Deferred tax liability, reclassification		1.6
Total deferred charges and prepaid taxes		697.9	$ 238.9
Net book value of deferred charge		542.8	539.8
Net benefit for a previously unrecognized position		27.0		$ 49.8
Expense for non-income based state taxes				11.3
Proposed Disallowance By Tax Authorities For Payment For Services	$ 130.0
Net effect of adjustments to our uncertain tax positions		25.0
Income Taxes (Textual)
Undistributed Foreign Earnings Of Non Us Subsidiaries		6,000.0
Unrecognized tax benefit		15.7	53.6	32.5
Net interest expense		3.1	4.1	4.5
Unrecognized Tax Benefits, Interest on Income Taxes Accrued		12.5	17.6
Notice of assessment of corporate withholding tax including penalties and interest		60.9
Minimum
Tax Credit Carryforward [Line Items]
Estimated Tax Liability On Undistributed Earnings Of Foreign Subsidiaries		1,500.0
Maximum
Tax Credit Carryforward [Line Items]
Estimated Tax Liability On Undistributed Earnings Of Foreign Subsidiaries		2,000.0
General Business | Domestic Country
Tax Credit Carryforward [Line Items]
Operating Loss Carryforwards		25.3
Tax Credit Carryforward, Amount		127.6
General Business | State and Local Jurisdiction
Tax Credit Carryforward [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, State and Local		91.7
General Business | Foreign Tax Authority [Member]
Tax Credit Carryforward [Line Items]
Operating Loss Carryforwards		53.4
Research | State and Local Jurisdiction
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward, Amount		125.5
ZINBRYTA
Tax Credit Carryforward [Line Items]
Deferred tax liability recognized				$ 203.7
Net book value of deferred charge		$ 166.3	$ 179.9