v2.4.0.6
Pensions And Other Postretirement Benefits Pension and OPEB (Details) (USD $)
Share data in Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
US Pension Plans [Member]
    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Stock issued during period, shares, employee benefit   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
Service and Administratative cost 160,000,000 158,000,000
Interest Cost 1,080,000,000 1,229,000,000
Expected Return on Plan Assets (1,332,000,000) (1,674,000,000)
Amortization of Prior Service Cost (Credit) 0 0
Recognition of Actuarial Gains (Losses) 0 0
Curtailments, settlements, and other (gains) losses (21,000,000) 0
Net Periodic Pension and OPEB (Income) Expense (113,000,000) (287,000,000)
Defined Benefit Plan, Curtailments 309,000,000  
Non-US Pension Plans [Member]
    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Service Cost 92,000,000 96,000,000
Interest Cost 277,000,000 301,000,000
Expected Return on Plan Assets (217,000,000) (230,000,000)
Amortization of Prior Service Cost (Credit) 0 0
Recognition of Actuarial Gains (Losses) 8,000,000 0
Curtailments, settlements, and other (gains) losses 28,000,000 3,000,000
Net Periodic Pension and OPEB (Income) Expense 188,000,000 170,000,000
Defined Benefit Plan, Interim Remeasurement (150,000,000) 272,000,000
US OPEB Plans [Member]
    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Service Cost 5,000,000 6,000,000
Interest Cost 59,000,000 67,000,000
Expected Return on Plan Assets 0 0
Amortization of Prior Service Cost (Credit) (29,000,000) 0
Recognition of Actuarial Gains (Losses) 13,000,000 1,000,000
Curtailments, settlements, and other (gains) losses 0 0
Net Periodic Pension and OPEB (Income) Expense 48,000,000 74,000,000
Non-US OPEB Plans [Member]
    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Service Cost 5,000,000 9,000,000
Interest Cost 16,000,000 52,000,000
Expected Return on Plan Assets 0 0
Amortization of Prior Service Cost (Credit) (2,000,000) (2,000,000)
Recognition of Actuarial Gains (Losses) 1,000,000 0
Curtailments, settlements, and other (gains) losses 0 0
Net Periodic Pension and OPEB (Income) Expense $ 20,000,000 $ 59,000,000