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Income Tax Matters, Components of Deferred Tax Assets and Liabilities Table (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Deferred income tax assets: |  |
Loss and credit carryforwards | $ 48.7 | $ 48.7
Salaried VEBA (see Note 5) | 8.7 | 8.0
Other assets | 30.1 | 27.2
Leased asset | 7.1 | 0.0
Inventories | 9.4 | 20.0
Valuation allowances | (9.9) | (8.4)
Total deferred income tax assets | 94.1 | 95.5
Deferred income tax liabilities: |  |
Property, plant and equipment | (78.5) | (62.0)
Leased liability | (6.3) | 0.0
Undistributed foreign earnings | (2.0) | (1.8)
Total deferred income tax liabilities | (86.8) | (63.8)
Net deferred income tax assets | 7.3 | 31.7
Net deferred income tax assets, long term | 11.8 | 35.9
Deferred tax liability, long term | $ (4.5) | $ (4.2)

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