|
Fair Values (Details 1) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Liabilities [Abstract] | ||
| Derivative liabilities | $ 164 | $ 213 |
| Total liabilities | 164 | 213 |
| Level 1 [Member] | ||
| Liabilities [Abstract] | ||
| Derivative liabilities | 0 | 0 |
| Total liabilities | 0 | 0 |
| Level 2 [Member] | ||
| Liabilities [Abstract] | ||
| Derivative liabilities | 164 | 213 |
| Total liabilities | 164 | 213 |
| Level 3 [Member] | ||
| Liabilities [Abstract] | ||
| Total liabilities | $ 0 | $ 0 |