v2.3.0.11
Commitments And Contingencies (Details) (USD $)
 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Dec. 31, 2010
Future Minimum Lease Payments For Operating Leases [Abstract]      
Total minimum operating lease payments $ 4,700,000,000    
Personal Injury [Member]
      
Liability Activity [Abstract]      
Commitments and contingencies, beginning balance 426,000,000 545,000,000  
Accruals 67,000,000 82,000,000  
Changes in estimates for prior years (39,000,000) (56,000,000)  
Payments (53,000,000) (109,000,000)  
Commitments and contingencies, ending balance at June 30 401,000,000 462,000,000  
Commitments and contingencies, current portion, ending balance at June 30 140,000,000 157,000,000  
Asserted And Unasserted Claims [Abstract]      
Percent of liability recorded related to asserted claims 88.00%    
Percent of liability recorded related to unasserted claims 12.00%    
Asbestos [Member]
      
Liability Activity [Abstract]      
Commitments and contingencies, beginning balance 162,000,000 174,000,000  
Accruals 0 0  
Payments (5,000,000) (6,000,000)  
Commitments and contingencies, ending balance at June 30 157,000,000 168,000,000  
Commitments and contingencies, current portion, ending balance at June 30 11,000,000 13,000,000  
Asserted And Unasserted Claims [Abstract]      
Percent of liability recorded related to asserted claims 20.00%    
Percent of liability recorded related to unasserted claims 80.00%    
Environmental [Member]
      
Liability Activity [Abstract]      
Commitments and contingencies, beginning balance 213,000,000 217,000,000  
Accruals 17,000,000 20,000,000  
Payments (22,000,000) (18,000,000)  
Commitments and contingencies, ending balance at June 30 208,000,000 219,000,000  
Commitments and contingencies, current portion, ending balance at June 30 74,000,000 82,000,000  
Environmental [Abstract]      
Sites identified which we are or may be liable for remediation costs 294    
Sites subject of actions taken by the U.S. government 33    
Sites on the Superfund National Priorities List 17    
Percent of liability discounted less than 1% approximately 5%  
Environmental liability discount rate 3.20%   2.80%
Guarantees [Member]
      
Guarantees [Abstract]      
Maximum potential amount of guarantee payments 358,000,000    
Recorded liability for fair value of guarantees $ 2,000,000   $ 3,000,000
Expiration year of final guarantee The final guarantee expires in 2022.