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v3.19.3.a.u2

Summary of Significant Accounting Policies, Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2019
Income tax |  |  |  |
Undistributed foreign earnings |  |  |  | $ 900.0
Provisional Tax Act Charge |  |  | $ 398.5 |
Income tax expense (benefit) | $ (14.5) | $ (14.5) |  |

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