|
Geographic Information (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2010
|
Sep. 30, 2010
|
Jun. 30, 2010
|
Mar. 31, 2010
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Segment Reporting Information [Line Items] | |||||||||||
| Revenue | $ 14,166 | $ 13,166 | $ 13,191 | $ 12,582 | $ 13,421 | $ 12,192 | $ 12,204 | $ 11,728 | $ 53,105 | $ 49,545 | $ 45,297 |
| Long-lived assets | 21,305 | 21,740 | 21,305 | 21,740 | 22,271 | ||||||
|
United States
|
|||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Revenue | 39,347 | 36,795 | 34,375 | ||||||||
| Long-lived assets | 16,085 | 16,693 | 16,085 | 16,693 | 17,336 | ||||||
|
International
|
|||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Revenue | 13,758 | 12,750 | 10,922 | ||||||||
| Long-lived assets | $ 5,220 | $ 5,047 | $ 5,220 | $ 5,047 | $ 4,935 | ||||||