|
Property And Equipment (Schedule Of Proceeds From Offshore Divestitures) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 26 Months Ended |
|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2011
|
|
| Property, Plant and Equipment [Line Items] | ||
| Cash Proceeds | $ 10,002 | |
|
Brazil [Member] | Discontinued Operations [Member]
|
||
| Property, Plant and Equipment [Line Items] | ||
| Cash Proceeds | 3,251 | |
| Year Of Divestiture | 2011 | |
|
Gulf Of Mexico [Member] | Continuing Operations [Member]
|
||
| Property, Plant and Equipment [Line Items] | ||
| Cash Proceeds | 4,059 | |
| Year Of Divestiture | 2010 | |
|
Azerbaijan [Member] | Discontinued Operations [Member]
|
||
| Property, Plant and Equipment [Line Items] | ||
| Cash Proceeds | 1,925 | |
| Year Of Divestiture | 2010 | |
|
China - Panyu And Exploration [Member] | Discontinued Operations [Member]
|
||
| Property, Plant and Equipment [Line Items] | ||
| Cash Proceeds | 592 | |
| Year Of Divestiture | 2010 | |
|
Other Segment [Member] | Discontinued Operations [Member]
|
||
| Property, Plant and Equipment [Line Items] | ||
| Cash Proceeds | $ 175 | |
| Year Of Divestiture | 2010 |