v2.4.0.6
Accumulated Other Comprehensive Income (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Accumulated other comprehensive income in the equity section of the balance sheet included        
Defined Benefit Plans, Beginning Balance     $ (1,971)  
Net Unrealized Gain on Securities, Beginning Balance     0  
Foreign Currency Translation, Beginning Balance     5,223  
Hedging, Beginning Balance     (6)  
Accumulated Other Comprehensive Income, Beginning Balance     3,246 [1]  
Defined Benefit Plans (150) 48 (74) 123
Net Unrealized Gain on Securities 0 0 1 (158)
Foreign Currency Translation 612 (2,970) 946 (1,536)
Hedging 0 0 6 1
Other Comprehensive Income, Net of Tax 462 (2,922) 879 (1,570)
Defined Benefit Plans, Separation of Downstream Business     683  
Net Unrealized Gain on Securities, Separation of Downstream Business     0  
Foreign Currency Translation, Separation of Downstream Business     (469)  
Hedging, Separation of Downstream Business     0  
Other Comprehensive Income, Net of Tax, Separation of Downstream Business     214  
Defined Benefit Plans, Ending Balance (1,362)   (1,362)  
Net Unrealized Gain on Securities, Ending Balance 1   1  
Foreign Currency Translation, Ending Balance 5,700   5,700  
Hedging, Ending Balance 0   0  
Accumulated Other Comprehensive Income, Ending Balance $ 4,339   $ 4,339  
[1] **Certain amounts have been restated to reflect a prior period adjustment. See Note 16—Accumulated Other Comprehensive Income, in the Notes to Consolidated Financial Statements.