v3.20.1

Debt (Debt Textuals) (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2020 | Apr. 09, 2020 | Mar. 31, 2019
Line of Credit Facility [Line Items] |  |  |
Effective interest rate | 5.30% |  | 5.90%
2022 First Lien Notes |  |  |
Line of Credit Facility [Line Items] |  |  |
Early repayment of senior debt | $ 245 |  |
2024 First Lien Notes |  |  |
Line of Credit Facility [Line Items] |  |  |
Early repayment of senior debt | 184 |  |
Russell City and Los Esteros Project Debt |  |  |
Line of Credit Facility [Line Items] |  |  |
Long-term debt, excluding current maturities | $ 276 |  |
Other corporate facilities | Subsequent Event |  |  |
Line of Credit Facility [Line Items] |  |  |
Letter of Credit Amount Extended |  | $ 100 |

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