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Income Taxes Reconciliation of Expected Federal Income Tax Benefit to Income Tax Provision (Benefit) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 01, 2017 | Dec. 31, 2017 | Dec. 31, 2019 | Dec. 31, 2018
Reconciliation of Expected Feferal Income Tax Benefit to the Company's Income Tax Provision (Benefit) [Line Items] |  |  |  |
Expected income tax (benefit) expense at U.S. federal statutory rate | $ (160.8) | $ 193.2 | $ (29.9) | $ 139.5
Changes in valuation allowance, income tax | (777.2) | (744.9) | (32.0) | (284.6)
Remeasurement due to the Tax Cuts and Jobs Act | 0.0 | 473.5 | 0.0 | 9.5
Reorganization costs | 2,130.0 | 0.0 | 0.0 | 0.0
Bad debt deduction | (1,639.6) | 0.0 | 0.0 | 0.0
Changes in tax reserves | (9.2) | 7.2 | 3.0 | 2.1
Excess depletion | (11.2) | (40.4) | (19.3) | (28.5)
Foreign earnings repatriation | 0.0 | 0.0 | 76.1 | 0.0
Foreign earnings provision differential | 158.2 | (26.3) | 45.6 | 97.1
Global intangible low-taxed income | 0.0 | 0.0 | 6.1 | 68.2
Remeasurement of foreign income tax accounts | 9.4 | (0.3) | (0.1) | (0.2)
State income taxes, net of federal tax benefit | 40.6 | (3.1) | (13.2) | 3.2
Other, net | (4.0) | (19.9) | 9.7 | 12.1
Total income tax provision (benefit) | $ (263.8) | $ (161.0) | $ 46.0 | $ 18.4

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