v2.4.0.8
Postemployment Benefit Plans (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
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Jun. 30, 2013
Dec. 31, 2013
Net periodic benefit costs, before tax          
Service cost $ 17 $ 22 $ 36 $ 43  
Interest cost 25 21 49 43  
Expected return on plan assets (26) (22) (52) (45)  
Settlements and curtailments (5) 1 (5) 1  
Actuarial losses, net 6 14 12 28  
Prior service cost, net (1) (1) (1) (1)  
Net periodic benefit costs 16 35 39 69  
Funding contributions 55 62 65 81  
Number of unfunded supllemental benefit plans covered under benefits freeze     1    
Reduction in aggregate liability 78 83 73 48  
Defined benefit pension liability 305   305   417
U.S. Plans
          
Net periodic benefit costs, before tax          
Service cost 10 15 21 29  
Interest cost 17 16 34 31  
Expected return on plan assets (18) (17) (37) (34)  
Settlements and curtailments (6) 1 (6) 1  
Actuarial losses, net 5 13 10 26  
Prior service cost, net (1) (1) (1) (1)  
Net periodic benefit costs 7 27 21 52  
Funding contributions 41 59 42 60  
Non-U.S. Plans
          
Net periodic benefit costs, before tax          
Service cost 7 7 15 14  
Interest cost 8 5 14 11  
Expected return on plan assets (8) (5) (15) (11)  
Settlements and curtailments 1   1    
Actuarial losses, net 1 1 2 2  
Net periodic benefit costs 9 8 17 16  
Funding contributions 14 3 23 20  
OPEB Plans
          
Net periodic benefit costs, before tax          
Interest cost     1 1  
Net periodic benefit costs     1 1  
Funding contributions       $ 1