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Income Taxes Carryforwards (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Tax Credit Carryforward [Line Items] |  |
Valuation allowance | $ 683.0 | $ 1,457.1
Undistributed Earnings of Foreign Subsidiaries | 1,200.0 |
Net Operating Loss Carryforward |  |
Tax Credit Carryforward [Line Items] |  |
Net operating loss | 1,600.0 |
Foreign Tax Credit Carryforward |  |
Tax Credit Carryforward [Line Items] |  |
Tax Credit Carryforward, Amount | 628.6 |
Valuation allowance | 249.6 |
Foreign Tax Credit Carryforward | Tax Year 2023 Or Earlier |  |
Tax Credit Carryforward [Line Items] |  |
Tax Credit Carryforward, Amount | 70.3 |
Foreign Tax Credit Carryforward | Tax Year 2026 Or Earlier |  |
Tax Credit Carryforward [Line Items] |  |
Tax Credit Carryforward, Amount | 238.6 |
Foreign Tax Credit Carryforward | Tax Year 2028 Or Earlier |  |
Tax Credit Carryforward [Line Items] |  |
Tax Credit Carryforward, Amount | 18.3 |
Foreign Tax Credit Carryforward | Tax Year 2029 Or Earlier |  |
Tax Credit Carryforward [Line Items] |  |
Tax Credit Carryforward, Amount | 30.5 |
Foreign Tax Credit Carryforward | Tax Year 2030 Or Earlier |  |
Tax Credit Carryforward [Line Items] |  |
Tax Credit Carryforward, Amount | $ 12.3 |
Foreign Tax Authority |  |
Tax Credit Carryforward [Line Items] |  |
Maximum percentage of annual taxable income allowed to use of the tax credit carryforward | 30.00% |
Foreign Tax Authority | Net Operating Loss Carryforward |  |
Tax Credit Carryforward [Line Items] |  |
Net operating loss | $ 634.0 |
Domestic Tax Authority | Net Operating Loss Carryforward |  |
Tax Credit Carryforward [Line Items] |  |
Maximum Period to Utilize Tax Credits | 20 years |
Non-US |  |
Tax Credit Carryforward [Line Items] |  |
General Business Deferred Tax Assets | $ 1.4 |

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