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Financial Instruments (Tables)
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9 Months Ended |
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Sep. 30, 2014
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| Notes to Condensed Consolidated Financial Statements [Abstract] |
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| Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Text Block] |
| | | | | | | | | | | | | | | | | | Asset Derivatives | | Liability Derivatives | (Dollars in millions) | September 30, 2014 | | December 31, 2013 | | September 30, 2014 | | December 31, 2013 | Derivatives designated as hedging instruments | $ | 13 |
| | $ | 59 |
| | $ | 128 |
| | $ | 103 |
| Derivatives not designated as hedging instruments | 87 |
| | 31 |
| | 89 |
| | 54 |
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| Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Text Block] |
| | | | | | | | | | | | | | | | | | Quarter Ended September 30, | | Nine Months Ended September 30, | (Dollars in millions) | 2014 | | 2013 | | 2014 | | 2013 | (Loss) gain recorded in Accumulated other comprehensive loss | $ | (142 | ) | | $ | 97 |
| | $ | (120 | ) | | $ | (64 | ) | Loss reclassified from Accumulated other comprehensive loss (gain) into Product sales (effective portion) | $ | 24 |
| | $ | (1 | ) | | $ | 55 |
| | $ | 22 |
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| Schedule of Foreign Exchange Contracts Not Designated as Hedges, Gain (Loss) In Statement of Financial Performance [Text Block] |
| | | | | | | | | | | | | | | | | | Quarter Ended September 30, | | Nine Months Ended September 30, | (Dollars in millions) | 2014 | | 2013 | | 2014 | | 2013 | Gain recognized in Other income, net | $ | 10 |
| | $ | 10 |
| | $ | 22 |
| | $ | 33 |
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