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Income Taxes (Tables) | 9 Months Ended
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Sep. 30, 2014
Income Tax Disclosure [Abstract] |
Schedule of Current and Deferred Income Tax Assets [Table Text Block] | Current and Deferred Income Tax Assets at September 30, 2014 and December 31, 2013 were:
(Dollars in Millions) |  | Sep 30, 2014 |  | Dec 31, 2013
Current Income Tax Assets |  | $ | 4.3 |  |  | $ | — |
Deferred Income Tax Assets |  | — |  |  | 31.8 |
Current and Deferred Income Tax Assets |  | $ | 4.3 |  |  | $ | 31.8 |
Schedule of Components of Income Tax Liabilities [Table Text Block] | The components of Liabilities for Income Taxes at September 30, 2014 and December 31, 2013 were:
(Dollars in Millions) |  | Sep 30, 2014 |  | Dec 31, 2013
Current Income Tax Liabilities |  | $ | — |  |  | $ | 1.5 |
Deferred Income Tax Liabilities |  | 41.7 |  |  | — |
Unrecognized Tax Benefits |  | 7.0 |  |  | 6.8 |
Liabilities for Income Taxes |  | $ | 48.7 |  |  | $ | 8.3 |

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