|
Debt (First Lien Notes) (Details) (USD $)
In Millions, unless otherwise specified |
Sep. 30, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Debt Instrument [Line Items] | ||
| Long-term Debt | $ 10,672 | $ 10,425 |
|
First Lien Notes 2017 [Member]
|
||
| Debt Instrument [Line Items] | ||
| Long-term Debt | 1,200 | 1,200 |
|
First Lien Notes 2019 [Member]
|
||
| Debt Instrument [Line Items] | ||
| Long-term Debt | 400 | 400 |
|
First Lien Notes 2020 [Member]
|
||
| Debt Instrument [Line Items] | ||
| Long-term Debt | 1,092 | 1,092 |
|
First Lien Notes 2021 [Member]
|
||
| Debt Instrument [Line Items] | ||
| Long-term Debt | 2,000 | 2,000 |
|
First Lien Notes 2023 [Member]
|
||
| Debt Instrument [Line Items] | ||
| Long-term Debt | 1,200 | 1,200 |
|
Corporate Debt Securities [Member]
|
||
| Debt Instrument [Line Items] | ||
| Long-term Debt | $ 5,892 | $ 5,892 |