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Debt (Tables) | 6 Months Ended
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Jun. 30, 2018
Debt Disclosure [Abstract] |
Schedule of Debt [Table Text Block] | The Company’s short and long-term debt consists of the following:
| June 30 |  | December 31
| 2018 |  | 2017
| (Dollars in Millions)
Short-Term Debt: |  |  |
Current portion of long-term debt | $ | — |  |  | $ | 2 |
Short-term borrowings | 30 |  |  | 44 |
| $ | 30 |  |  | $ | 46 |
Long-Term Debt: |  |  |
Term debt facility | $ | 348 |  |  | $ | 347 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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