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Income Taxes - Schedule of Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Income Tax Contingency [Line Items] |  |
(Loss) income before income tax expense (benefit) | $ (233) |
Income tax (benefit) expense | $ (47) |
Effective tax rate | 20.30% |
Predecessor |  |
Income Tax Contingency [Line Items] |  |
(Loss) income before income tax expense (benefit) |  | $ 206
Income tax (benefit) expense |  | $ 46
Effective tax rate |  | 22.40%

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