v2.4.0.6
Pension And Other Postretirement Benefits (Pension Plans With Accumulated Benefit Obligation In Excess Of Plan Assets) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Pension Benefits - U.S. [Member]
Dec. 31, 2011
Pension Benefits - Non-U.S. [Member]
Dec. 31, 2011
Other Postretirement Benefits [Member]
Dec. 31, 2011
Funded Pension Plans [Member]
Pension Benefits - U.S. [Member]
Dec. 31, 2010
Funded Pension Plans [Member]
Pension Benefits - U.S. [Member]
Dec. 31, 2011
Funded Pension Plans [Member]
Pension Benefits - Non-U.S. [Member]
Dec. 31, 2010
Funded Pension Plans [Member]
Pension Benefits - Non-U.S. [Member]
Dec. 31, 2011
Unfunded Pension Plans [Member]
Pension Benefits - U.S. [Member]
Dec. 31, 2010
Unfunded Pension Plans [Member]
Pension Benefits - U.S. [Member]
Dec. 31, 2011
Unfunded Pension Plans [Member]
Pension Benefits - Non-U.S. [Member]
Dec. 31, 2010
Unfunded Pension Plans [Member]
Pension Benefits - Non-U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]                      
Projected benefit obligation       $ 14,797 $ 13,184 $ 17,668 $ 9,865 $ 2,238 $ 1,823 $ 6,632 $ 6,188
Accumulated benefit obligation       12,606 11,383 16,175 9,074 1,475 1,381 5,753 5,413
Fair value of plan assets       10,655 10,834 12,832 7,131        
Net actuarial loss/(gain) 1,033 [1] 889 [1] 173 [1]                
Prior service cost $ 7 [2] $ 109 [2] $ 34 [2]                
[1] The Corporation amortizes the net balance of actuarial losses/(gains) as a component of net periodic benefit cost over the average remaining service period of active plan participants.
[2] The Corporation amortizes prior service cost on a straight-line basis as permitted under authoritative guidance for defined benefit pension and other postretirement benefit plans.