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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 |

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