v2.4.0.6

Segment Disclosures and Related Information - Geographic Information (Detail) (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] |  |  |
Sales and other operating revenues | $ 65,756 | $ 57,296 | $ 48,828
United States [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-Lived Assets, domestic | 33,750 | 32,246 | 32,841
Sales and Other Operating Revenues, domestic | 32,790 | 29,305 | 24,591
Australia [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-Lived Assets, foreign | 12,572 | 12,461 | 10,729
Sales and Other Operating Revenues, foreign | 3,458 | 2,789 | 2,229
Canada [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-Lived Assets, foreign | 20,083 | 20,439 | 22,451
Sales and Other Operating Revenues, foreign | 5,326 | 5,350 | 4,709
China [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-Lived Assets, foreign | 2,449 | 2,656 | 2,849
Sales and Other Operating Revenues, foreign | 2,154 | 1,870 | 1,076
Indonesia [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-Lived Assets, foreign | 1,726 | 1,745 | 2,072
Sales and Other Operating Revenues, foreign | 2,076 | 1,696 | 1,419
Norway [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-Lived Assets, foreign | 5,918 | 5,664 | 5,797
Sales and Other Operating Revenues, foreign | 5,755 | 4,692 | 4,101
Russia [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-Lived Assets, foreign | 341 | 815 | 8,383
Sales and Other Operating Revenues, foreign |  |  |
United Kingdom [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-Lived Assets, foreign | 3,257 | 2,975 | 3,768
Sales and Other Operating Revenues, foreign | 11,314 | 8,110 | 7,751
Other foreign countries [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-Lived Assets, foreign | 11,465 | 10,265 | 8,704
Sales and Other Operating Revenues, foreign | 2,883 | 3,484 | 2,952
Discontinued operations [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-Lived Assets, foreign | 25,279 | 25,523 | 26,746
Sales and Other Operating Revenues, foreign |  |  |
Worldwide Consolidated [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-Lived Assets, foreign | 116,840 | 114,789 | 124,340
Sales and other operating revenues | $ 65,756 | $ 57,296 | $ 48,828

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