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Litigation (Details) SFr in Millions, $ in Millions | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2020 USD ($) | Jun. 30, 2020 CHF (SFr) | Dec. 31, 2019 USD ($)
Income Tax Contingency [Line Items] |  |  |
Loss Contingency, Estimate of Possible Loss |  |  | $ 200.0
Disputed claims relating to construction costs | $ 33.0 | SFr 31 |
Brazil |  |  |
Income Tax Contingency [Line Items] |  |  |
Brazil tax assessment, including interest and penalties | $ 70.0 |  |

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