|
Long-Term Debt - Aggregate Maturities of Debt (Detail) (USD $)
In Millions, unless otherwise specified |
Jun. 30, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Debt Disclosure [Abstract] | ||
| 2015 | $ 46 | |
| 2016 | 1,235 | |
| 2017 | 481 | |
| 2018 | 26 | |
| 2019 | 1,459 | |
| Thereafter | 9 | |
| Total debt | $ 3,256 | $ 3,573 |