v3.19.3.a.u2
Pension And Other Postretirement Benefits (Estimated Amortization) (Details)
$ in Millions
Dec. 31, 2019
USD ($)
U.S. [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Net actuarial loss/(gain) $ 527 [1]
Prior service cost 5 [2]
Pension Benefits - Non-U.S. [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Net actuarial loss/(gain) 422 [1]
Prior service cost 70 [2]
Other Postretirement Benefits [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Net actuarial loss/(gain) 89 [1]
Prior service cost $ (42) [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.