|
Debt (First Lien Notes) (Details) (USD $)
In Millions, unless otherwise specified |
Mar. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Debt Instrument [Line Items] | ||
| Long-term Debt | $ 10,777 | $ 10,750 |
|
First Lien Notes 2017 [Member]
|
||
| Debt Instrument [Line Items] | ||
| Long-term Debt | 1,080 | 1,080 |
|
First Lien Notes 2019 [Member]
|
||
| Debt Instrument [Line Items] | ||
| Long-term Debt | 360 | 360 |
|
First Lien Notes 2020 [Member]
|
||
| Debt Instrument [Line Items] | ||
| Long-term Debt | 984 | 983 |
|
First Lien Notes 2021 [Member]
|
||
| Debt Instrument [Line Items] | ||
| Long-term Debt | 1,800 | 1,800 |
|
First Lien Notes 2023 [Member]
|
||
| Debt Instrument [Line Items] | ||
| Long-term Debt | 1,080 | 1,080 |
|
Corporate Debt Securities [Member]
|
||
| Debt Instrument [Line Items] | ||
| Long-term Debt | $ 5,304 | $ 5,303 |