v2.4.0.6
Pensions And Other Postretirement Benefits (Details) (USD $)
Share data in Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Mar. 31, 2012
Jun. 30, 2011
Mar. 31, 2011
Jun. 30, 2012
Jun. 30, 2011
US Pension Plans [Member]
            
Contributions [Abstract]            
Stock Issued During Period, Shares, Employee Benefit Plan           61
Stock Issued During Period, Value, Employee Benefit Plan (funding)       $ 2,200,000,000    
Stock Issued During Period, Value, Employee Benefit Plan       1,900,000,000    
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]            
Service and Administratative cost 161,000,000   157,000,000   321,000,000 315,000,000
Interest Cost 1,080,000,000   1,228,000,000   2,160,000,000 2,457,000,000
Expected Return on Plan Assets (1,333,000,000)   (1,672,000,000)   (2,665,000,000) (3,346,000,000)
Amortization of Prior Service Cost (Credit) (1,000,000)   0   (1,000,000) 0
Recognition of Actuarial Gains (Losses) 1,000,000   0   1,000,000 0
Curtailments, settlements, and other (gains) losses (2,000,000)   (23,000,000)   (23,000,000) (23,000,000)
Net Periodic Pension and OPEB (Income) Expense (94,000,000)   (310,000,000)   (207,000,000) (597,000,000)
Non-US Pension Plans [Member]
            
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]            
Service Cost 106,000,000   96,000,000   198,000,000 192,000,000
Interest Cost 276,000,000   313,000,000   553,000,000 614,000,000
Expected Return on Plan Assets (218,000,000)   (237,000,000)   (435,000,000) (467,000,000)
Amortization of Prior Service Cost (Credit) 0   (1,000,000)   0 (1,000,000)
Recognition of Actuarial Gains (Losses) 9,000,000   1,000,000   17,000,000 1,000,000
Curtailments, settlements, and other (gains) losses 14,000,000   (19,000,000)   42,000,000 (16,000,000)
Net Periodic Pension and OPEB (Income) Expense 187,000,000   153,000,000   375,000,000 323,000,000
Significant Plan Amendments, Benefit Modifications and Related Events [Abstract]            
Defined Benefit Plan, Interim Remeasurement   (150,000,000)   272,000,000    
US OPEB Plans [Member]
            
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]            
Service Cost 7,000,000   7,000,000   12,000,000 13,000,000
Interest Cost 58,000,000   68,000,000   117,000,000 135,000,000
Expected Return on Plan Assets 0   0   0 0
Amortization of Prior Service Cost (Credit) (29,000,000)   0   (58,000,000) 0
Recognition of Actuarial Gains (Losses) 13,000,000   1,000,000   26,000,000 2,000,000
Curtailments, settlements, and other (gains) losses 0   0   0 0
Net Periodic Pension and OPEB (Income) Expense 49,000,000   76,000,000   97,000,000 150,000,000
Non-US OPEB Plans [Member]
            
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]            
Service Cost 3,000,000   8,000,000   8,000,000 17,000,000
Interest Cost 16,000,000   53,000,000   32,000,000 105,000,000
Expected Return on Plan Assets 0   0   0 0
Amortization of Prior Service Cost (Credit) (3,000,000)   (3,000,000)   (5,000,000) (5,000,000)
Recognition of Actuarial Gains (Losses) 2,000,000   0   3,000,000 0
Curtailments, settlements, and other (gains) losses 0   0   0 0
Net Periodic Pension and OPEB (Income) Expense 18,000,000   58,000,000   38,000,000 117,000,000
U.S. Salaried Defined Benefit Pension Plan [Member]
            
Significant Plan Amendments, Benefit Modifications and Related Events [Abstract]            
Defined Benefit Plan, Curtailments   309,000,000        
Number of Eligible Retirees 42,000       42,000  
Number of Employees Affected 118,000       118,000  
Additional Plan Funding, Low Estimate 3,500,000,000       3,500,000,000  
Additional Plan Funding, High Estimate 4,500,000,000       4,500,000,000  
Canadian Salaried Pension Plan [Member]
            
Significant Plan Amendments, Benefit Modifications and Related Events [Abstract]            
Defined Benefit Plan Liability Increase (Decrease) 84,000,000          
Net Actuarial Gains (Losses) (58,000,000)       (58,000,000)  
Net Actuarial Curtailment Gain 20,000,000       20,000,000  
Prior Service Cost 46,000,000       46,000,000  
Canadian Salaried Healthcare Plan [Member]
            
Significant Plan Amendments, Benefit Modifications and Related Events [Abstract]            
Defined Benefit Plan Liability Increase (Decrease) (28,000,000)          
Net Actuarial Gains (Losses) 23,000,000       23,000,000  
Prior Service Cost $ (51,000,000)       $ (51,000,000)