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Pension Benefit Plans and Other Postretirement Benefits (Details 5) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
U.S Pension Plans
     
Defined Benefit Plan Disclosure      
Percentage of U.S. pension plan assets classified as Level 2 assets in equity securities (as a percent) 70.00% 70.00%  
Percentage of U.S. pension plan assets classified as Level 2 assets in debt securities (as a percent) 30.00% 30.00%  
Plan assets at fair value $ 2,011 $ 2,195 $ 2,061
Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value 1,325 1,279 1,223
Equity securities | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Target allocation percentage, low end range (as a percent) 45.00%    
Target allocation percentage, high end range (as a percent) 55.00%    
Debt securities | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Target allocation percentage, low end range (as a percent) 40.00%    
Target allocation percentage, high end range (as a percent) 50.00%    
Real estate | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Target allocation percentage, low end range (as a percent) 0.00%    
Target allocation percentage, high end range (as a percent) 10.00%    
Other | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Target allocation percentage, low end range (as a percent) 0.00%    
Target allocation percentage, high end range (as a percent) 10.00%    
Level 1 | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value 1,021 1,002  
Level 1 | Cash and cash equivalents | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value 21 28  
Level 1 | Equity securities | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value 340 383  
Level 1 | Debt securities | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value 645 523  
Level 1 | Other | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value 15 68  
Level 2 | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value 288 258  
Level 2 | Cash and cash equivalents | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value 5 1  
Level 2 | Equity securities | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value 146 167  
Level 2 | Debt securities | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value 101 90  
Level 2 | Other | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value 36    
Level 3 | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value 16 19 20
Level 3 | Debt securities | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value 5 8  
Level 3 | Real estate | Non-U.S. Pension Plans
     
Defined Benefit Plan Disclosure      
Plan assets at fair value $ 11 $ 11