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Income Taxes Uncertain Tax Provisions (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Changes in unrecognized tax benefits for all jurisdictions were as follows: |  |  |
Gross unrecognized tax benefits, beginning of period | $ 124.6 | $ 36.9 | $ 39.5
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions | 0.7 | 84.7 | 0.0
Current year tax positions | 3.0 | 3.0 | 2.8
Prior year tax positions - decreases | (99.7) | 0.0 | (5.9)
Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation | (3.4) |  | (0.5)
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation |  | 0.0 |
Gross unrecognized tax benefits, end of period | 25.2 | 124.6 | $ 36.9
Income Tax Contingency [Line Items] |  |  |
The amount of unrecognized tax benefits that, if recognized, would affect our effective tax rate in future periods | 25.2 |  |
Accrued interest and penalties related to unrecognized tax benefits, which are reflected in other noncurrent liabilities | 5.0 | $ 31.1 |
Non-US |  |  |
Income Tax Contingency [Line Items] |  |  |
Prior year tax positions - increases | 99.4 |  |
US and non-US [Domain] |  |  |
Income Tax Contingency [Line Items] |  |  |
Unrecognized Tax Benefits That Impacted Effective Tax Rate | $ 3.0 |  |

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