Income Taxes (Source of Income (Loss) Before Income Taxes) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
Sources of Income (Loss) Before Income Taxes | |||
Income from continuing operations before income taxes | $ 1,861 | $ 1,668 | $ 1,479 |
Discontinued operations before income taxes | (2,235) | (1,931) | 191 |
Income (loss) before income tax | $ (374) | $ (263) | $ 1,670 |