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Derivative - Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Derivative [Line Items] |  |  |
Due to affiliates | $ 17.0 | $ 65.8 |
Due to affiliates - less current portion | 8.3 | 21.9 |
Commodity Contract | Glencore |  |  |
Derivative [Line Items] |  |  |
Due to affiliates | 11.9 |  | $ 17.1
Due to affiliates - less current portion | 8.3 |  | $ 21.9
Not Designated as Hedging Instrument |  |  |
Derivative [Line Items] |  |  |
Asset Fair Value | 129.1 | 42.9 |
Liability Fair Value | 31.0 | 146.2 |
Not Designated as Hedging Instrument | Commodity Contract |  |  |
Derivative [Line Items] |  |  |
Asset Fair Value | 129.1 | 42.9 |
Liability Fair Value | 23.7 | 143.3 |
Not Designated as Hedging Instrument | Foreign Exchange Contract |  |  |
Derivative [Line Items] |  |  |
Asset Fair Value | 0.0 | 0.0 |
Liability Fair Value | $ 7.3 | $ 2.9 |

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