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Income Taxes, Reconciliation of Statutory to Effective Tax Rate (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Effective income tax rate, continuing operations, tax rate reconciliation [Abstract] |  |  |
Income taxes at statutory rate | 21.00% | 21.00% | 35.00%
Indefinite reinvestment | 0.00% | (2.73%) | 2.75%
Excess tax benefit from equity award | 0.02% | (1.41%) | (2.38%)
Non-U.S. income taxed at different rates | 3.09% | 7.37% | 0.00%
Foreign withholding taxes | 4.10% | 7.68% | 0.00%
Change in reserve for uncertain tax positions | 1.07% | 3.68% | 0.00%
Non-deductible expenses | 0.00% | 0.00% | 0.17%
Controlled foreign corporation losses | 0.00% | 0.00% | (0.13%)
Valuation allowance recognized foreign tax credit & others | 2.56% | 5.54% | 19.59%
Write-off outside basis DTL | 0.00% | 0.00% | (2.89%)
Revaluation of deferred taxes | 0.00% | 1.61% | (1.28%)
Foreign-Derived Intangible Income (FDII) | (0.70%) | 0.00% | 0.00%
Other | 0.85% | 1.77% | 0.43%
Effective income tax rate, continuing operations | 31.99% | 44.51% | 51.26%
Cumulative amount of undistributed earnings of non-U.S. subsidiaries | $ 60.0 |  |
Incremental taxes if undistributed earnings on non-U.S. subsidiaries were repatriated | $ 6.0 |  |

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