Employee Benefit Plans (Projected and Accumulated Benefit Obligations in Excess of Fair Value) (Details) - Pension Plans Defined Benefit [Member] - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S. [Member]
Employee Benefit Plans [Abstract]
Defined Benefit Plan Accumulated Benefit Obligation	$ 1,793	$ 2,359
Defined Benefit Plan Fair Value Of Plan Assets	1,664	1,770	$ 1,591
Defined Benefit Plan Plans With Benefit Obligations In Excess Of Plan Assets [Abstract]
Projected benefit obligation	261	2,548
Fair value of plan assets	0	1,770
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets [Abstract]
Accumulated benefit obligation	234	2,359
Fair Value Of Plan Assets	0	1,770
Foreign Pension Plans, Defined Benefit [Member]
Employee Benefit Plans [Abstract]
Defined Benefit Plan Accumulated Benefit Obligation	3,658	4,095
Defined Benefit Plan Fair Value Of Plan Assets	4,812	4,793	$ 4,306
Defined Benefit Plan Plans With Benefit Obligations In Excess Of Plan Assets [Abstract]
Projected benefit obligation	362	391
Fair value of plan assets	58	35
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets [Abstract]
Accumulated benefit obligation	271	338
Fair Value Of Plan Assets	$ 9	$ 35