v3.3.1.900
Pension And Other Postretirement Benefits (Estimated Amortization) (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2015
USD ($)
Pension Benefits - U.S. [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Net actuarial loss/(gain) $ 930 [1]
Prior service cost 6 [2]
Pension Benefits - Non-U.S. [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Net actuarial loss/(gain) 543 [1]
Prior service cost 55 [2]
Other Postretirement Benefits [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Net actuarial loss/(gain) 152 [1]
Prior service cost $ (30) [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.