|
Foreign Revenue, Income before Income Taxes, Net Income and Assets from Foreign Operations (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Revenue | $ 14,479 | $ 14,680 | $ 13,816 |
| Asset | 358,990 | 325,266 | |
|
United Kingdom
|
|||
| Revenue | 2,300 | 2,200 | 2,100 |
| Asset | $ 40,000 | $ 28,300 | $ 44,700 |
| Percentage of revenue | 16.00% | 15.00% | 15.00% |
| Percentage of asset | 11.00% | 9.00% | 18.00% |