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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2019
Income Tax Disclosure [Abstract] |
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] |
| Year ended December 31,
Dollar amounts in millions | 2019 |  | 2018 |  | 2017
Domestic | $ | 18 |  |  | $ | 359 |  |  | $ | 342 |
Foreign | (41 | ) |  | 162 |  |  | 168 |
Total | $ | (23 | ) |  | $ | 521 |  |  | $ | 510 |
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
| Year ended December 31,
Dollar amounts in millions | 2019 |  | 2018 |  | 2017
Current tax provision (benefit): |  |  |  |  |
U.S. federal | $ | (5 | ) |  | $ | 55 |  |  | $ | 106 |
State and local | (1 | ) |  | 8 |  |  | 4 |
Foreign | (17 | ) |  | 32 |  |  | 8 |
Net current tax provision (benefit) | (23 | ) |  | 95 |  |  | 118 |
Deferred tax provision (benefit): |  |  |  |  |
U.S. federal | 7 |  |  | 11 |  |  | (19 | )
State and local | (1 | ) |  | 6 |  |  | 8 |
Foreign | 5 |  |  | 11 |  |  | 38 |
Net valuation allowance increase (decrease) | (1 | ) |  | (1 | ) |  | (26 | )
Net deferred tax provision | 10 |  |  | 27 |  |  | 1 |
Total income tax provision (benefit) | $ | (13 | ) |  | $ | 122 |  |  | $ | 119 |
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] | The tax effects of significant temporary differences creating deferred tax assets and liabilities were as follows:
| December 31,
Dollar amounts in millions | 2019 |  | 2018
Accrued liabilities | $ | 18 |  |  | $ | 22 |
Pension and post-retirement benefits | 7 |  |  | 8 |
Share-based compensation | 5 |  |  | 5 |
Benefit relating to capital loss, NOL carryforwards, and credit carryforwards | 28 |  |  | 16 |
Inventories | 7 |  |  | 8 |
Market value write-down of ARS | 3 |  |  | 3 |
Operating lease liabilities | 6 |  |  | — |
Valuation allowance | (11 | ) |  | (12 | )
Other | 8 |  |  | 13 |
Total deferred tax assets | 71 |  |  | 63 |
Property, plant, and equipment | (121 | ) |  | (111 | )
Timber and timberlands | (10 | ) |  | (10 | )
Operating lease assets | (6 | ) |  | — |
Investment in Entekra | (6 | ) |  | — |
Total deferred tax liabilities | (143 | ) |  | (121 | )
Net deferred tax liabilities | $ | (72 | ) |  | $ | (58 | )
Balance sheet classification |  |  |
Long-term deferred tax asset | 1 |  |  | 4 |
Long-term deferred tax liability | (73 | ) |  | (62 | )
| $ | (72 | ) |  | $ | (58 | )
Summary of Tax Credit Carryforwards [Table Text Block] | The benefit relating to capital loss, net operating loss (NOL) and credit carryforwards included in the above table at December 31, 2019 consists of:
Dollar amounts in millions | Net Operating Loss | Benefit Amount | Valuation Allowance | Expiration Beginning in
Federal NOL carryforwards | $ | 11 |  | $ | 2 |  | $ | — |  | No expiration
State NOL carryforwards | 266 |  | 10 |  | — |  | 2021
Brazil NOL carryforwards | 3 |  | 1 |  | — |  | No expiration
Canadian NOL carryforwards | 20 |  | 5 |  | — |  | 2040
State credit carryforwards |  | 1 |  | — |  | 2020
Canadian capital loss carryforwards |  | 5 |  | (5 | ) | No expiration
Canadian credit carryforwards |  | 4 |  | — |  | 2020
|  | $ | 28 |  | $ | (5 | ) |
We periodically review the need for valuation allowances against deferred tax assets and recognize these deferred tax assets to the extent that their realization is more likely than not. As part of our review, we consider all positive and negative evidence, including earnings history, the future reversal of deferred tax liabilities, and the relevant expirations of carryforwards. We believe that the valuation allowances provided are appropriate. If future years’ earnings differ from the estimates used to establish these valuation allowances, or other objective positive or negative evidence arises, we may be required to record an adjustment resulting in an impact on tax provision (benefit) for that period.
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] | The following table summarizes the differences between the U.S. federal statutory tax rates and the total effective tax rates from continuing operations:
| Year ended December 31,
| 2019 |  | 2018 |  | 2017
Income from continuing operations before income taxes, including equity in unconsolidated affiliates | $ | (23 | ) |  | $ | 521 |  |  | $ | 510 |
U.S. federal tax rate | 21 | % |  | 21 | % |  | 35 | %
State and local income taxes | 11 |  |  | 3 |  |  | 2 |
Effect of foreign tax rates | 9 |  |  | 2 |  |  | (3 | )
Effect of foreign exchange on functional currencies | (4 | ) |  | (1 | ) |  | 1 |
Tax credits | 8 |  |  | (1 | ) |  | (1 | )
Noncontrolling interest | (4 | ) |  | — |  |  | — |
Stock-based compensation | 5 |  |  | (1 | ) |  | — |
Domestic manufacturing deduction | — |  |  | — |  |  | (2 | )
Capital gain tax rate differential | 5 |  |  | — |  |  | — |
Inflationary adjustment | 5 |  |  | — |  |  | — |
Valuation allowance | 8 |  |  | — |  |  | (6 | )
Uncertain tax positions | (7 | ) |  | — |  |  | 1 |
Effect of U.S. federal rate change on deferred taxes | — |  |  | (1 | ) |  | (3 | )
Other, net | 1 |  |  | 1 |  |  | (1 | )
Effective tax rate (%) | 58 | % |  | 23 | % |  | 23 | %
Summary of Income Tax Contingencies [Table Text Block] | In accordance with the accounting for uncertain tax positions, the following is a tabular reconciliation of the total amount of unrecognized tax benefits at the beginning and end of the years presented:
| December 31,
Dollar amounts in millions | 2019 |  | 2018 |  | 2017
Beginning balance | $ | 41 |  |  | $ | 40 |  |  | $ | 40 |
Increases: |  |  |  |  |
Tax positions taken in current year | 1 |  |  | 1 |  |  | — |
Tax positions taken in prior years | — |  |  | 1 |  |  | 1 |
Decreases: |  |  |  |  |
Tax positions taken in current year | — |  |  | — |  |  | — |
Tax positions taken in prior years | — |  |  | — |  |  | (1 | )
Settlements during the year | (4 | ) |  | (1 | ) |  | — |
Lapse of statute in current year | — |  |  | — |  |  | — |
Ending balance | $ | 38 |  |  | $ | 41 |  |  | $ | 40 |

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