v2.4.0.8
Noncontrolling Interests (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Activity for equity attributable to noncontrolling interests        
Beginning Balance     $ 48,427 $ 65,749
Net Income 2,063 2,289 4,216 5,244
Dividends paid     (1,629) (1,661)
Repurchase of company common stock       (4,949)
Distributions to noncontrolling interests     (43) (47)
Separation of Downstream business       (18,672)
Other     (2,039) [1] 779 [1]
Ending Balance 48,932 46,443 48,932 46,443
Common Stockholders' Equity [Member]
        
Activity for equity attributable to noncontrolling interests        
Beginning Balance     47,987 65,239
Net Income     4,189 5,204
Dividends paid     (1,629) (1,661)
Repurchase of company common stock       (4,949)
Separation of Downstream business       (18,641)
Other     (2,039) [1] 779 [1]
Ending Balance 48,508 45,971 48,508 45,971
Noncontrolling Interest [Member]
        
Activity for equity attributable to noncontrolling interests        
Beginning Balance     440 510
Net Income     27 40
Distributions to noncontrolling interests     (43) (47)
Separation of Downstream business       (31)
Ending Balance $ 424 $ 472 $ 424 $ 472
[1] *Includes components of other comprehensive income, which are disclosed separately in our consolidated statement of comprehensive income.