Retirement Plans (Schedule of Change in Benefit Obligations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Beginning projected benefit obligations	$ 1,118	$ 869
Service cost	72	63	$ 41
Interest cost	7	8	12
Foreign exchange impact	(70)	80
Employee contributions	8	8
Actuarial (gains) losses	(71)	110
Curtailment gain	(23)	0
Benefits paid	(5)	(20)
Ending projected benefit obligations	1,036	1,118	$ 869
Ending accumulated benefit obligations	$ 987	$ 1,056