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Income Taxes (Details Textual) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Tax Credit Carryforward [Line Items] |  |  |  |
Total deferred charges and prepaid taxes |  | $ 989.8 | $ 697.9 |
Net effect of adjustments to our uncertain tax positions | $ 27.0 |  |  |
Income Taxes (Textual) |  |  |  |
Undistributed Foreign Earnings Of Non Us Subsidiaries |  | 7,600.0 |  |
Unrecognized tax benefit |  | 26.9 | 15.7 | $ 53.6
Net interest expense |  | 9.1 | 3.1 | $ 4.1
Unrecognized Tax Benefits, Interest on Income Taxes Accrued |  | 25.2 | $ 12.5 |
Minimum |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |
Estimated Tax Liability On Undistributed Earnings Of Foreign Subsidiaries |  | 1,800.0 |  |
Maximum |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |
Estimated Tax Liability On Undistributed Earnings Of Foreign Subsidiaries |  | 2,300.0 |  |
Foreign Tax Authority [Member] |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |
Notice of assessment of corporate withholding tax including penalties and interest |  | 58.3 |  |
Payments for Other Taxes |  | 12.2 |  |
General Business | Domestic Country |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |
Operating Loss Carryforwards |  | 22.5 |  |
Tax Credit Carryforward, Amount |  | 140.0 |  |
General Business | State and Local Jurisdiction |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, State and Local |  | 86.4 |  |
General Business | Foreign Tax Authority [Member] |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |
Operating Loss Carryforwards |  | 489.4 |  |
Research | State and Local Jurisdiction |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |
Tax Credit Carryforward, Amount |  | $ 126.6 |  |

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