|
Discontinued Operations - Operations Data for Discontinued Operations (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
4 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
May 05, 2011
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Discontinued Operations And Disposal Groups [Abstract] | |||
| Tax effect on gain from disposal of discontinued operations | $ 0 | $ 0 | $ 0 |