(Pension Plans With An Accumulated Benefit Obligation In Excess Of Plan Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 353	$ 13,020
Accumulated benefit obligation	353	12,997
Fair value of plan assets	0	12,018
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	65	245
Accumulated benefit obligation	56	227
Fair value of plan assets	$ 19	$ 166