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Pension Savings And Other Postretirement Benefit Plans (Details) (USD $)
In Millions
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]        
Pension curtailments/settlements/termination benefits $ 11   $ 11  
Pension Savings and Other Postretirement Benefit Plans (Textuals) [Abstract]        
Pension curtailments/settlements/termination benefits 11   11  
Expected Current Year Contributions To Funded Pension Plans, Minimum     250  
Expected Current Year Contributions To Funded Pension Plans, Maximum     300  
Contributions to defined savings plans 25 21 51 46
Postretirement benefit cost (credit) 2 9 5 11
Adjustment for participant data related to prior periods included in Postretirement benefit cost (credit)   7    
U.S. [Member]
       
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]        
Service cost- benefits earned during the period 10 10 21 20
Interest cost on projected benefit obligation 70 73 141 148
Expected return on plan assets (76) (70) (153) (140)
Amortization of prior service cost 6 7 12 15
Amortization of net losses 33 33 67 66
Net periodic pension cost 43 53 88 109
Pension curtailments/settlements/termination benefits 11   11  
Net periodic pension cost 54 53 99 109
Pension Savings and Other Postretirement Benefit Plans (Textuals) [Abstract]        
Pension curtailments/settlements/termination benefits 11   11  
Contributions to pension plans 51   51  
Non U.S. [Member]
       
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]        
Service cost- benefits earned during the period 8 6 16 13
Interest cost on projected benefit obligation 38 35 76 72
Expected return on plan assets (33) (30) (66) (62)
Amortization of prior service cost 1 1 1 1
Amortization of net losses 9 8 19 17
Net periodic pension cost 23 20 46 41
Pension curtailments/settlements/termination benefits 1     1
Net periodic pension cost 24 20 46 42
Pension Savings and Other Postretirement Benefit Plans (Textuals) [Abstract]        
Pension curtailments/settlements/termination benefits 1     1
Contributions to pension plans $ 10   $ 18