Segment and Related Information (Geographic Data) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
Revenues from External Customers and Long-Lived Assets [Line Items] | |||
Revenues from external customers | $ 12,737 | $ 8,521 | $ 7,449 |
Long-Lived Assets | 28,125 | 21,733 | |
US [Member]
|
|||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||
Revenues from external customers | 11,084 | 7,760 | 6,733 |
Long-Lived Assets | 19,129 | 18,228 | |
UK [Member]
|
|||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||
Revenues from external customers | 1,653 | 761 | 716 |
Long-Lived Assets | $ 8,996 | $ 3,505 |