|
Goodwill (Narrative) (Detail) (USD $)
In Millions, except Share data, unless otherwise specified |
6 Months Ended | |||
|---|---|---|---|---|
|
Jun. 30, 2012
|
Mar. 31, 2012
|
Mar. 19, 2012
|
Dec. 31, 2011
|
|
| CAPM risk-free rate in years | 20 years | |||
| Beta for peer set in years | 5 years | |||
| Common stock, issued | 1,454,542,017 | 153,000,000 | 1,301,230,838 | |
| Common stock price per share | $ 5.90 | |||
| Proceeds from the offering before underwriting discounts and commissions and other expenses | $ 875 | |||