|
Long-Term Debt (Details 1) (USD $)
In Millions, unless otherwise specified |
9 Months Ended |
|---|---|
|
Sep. 30, 2012
|
|
| Extinguishment of Debt [Line Items] | |
| Extinguishment of Debt, Amount | $ 265 |
|
Medium-term Notes [Member]
|
|
| Extinguishment of Debt [Line Items] | |
| Debt Instrument, Interest Rate, Stated Percentage | 7.06% |
| Extinguishment of Debt, Amount | 40 |
|
Senior Notes [Member]
|
|
| Extinguishment of Debt [Line Items] | |
| Debt Instrument, Interest Rate, Stated Percentage | 5.20% |
| Extinguishment of Debt, Amount | $ 225 |