Special Charges - Restructuring Reserve (Details) $ in Millions	3 Months Ended
	Apr. 03, 2021 USD ($)
Restructuring Reserve [Roll Forward]
Beginning balance	$ 52
Provision for 2020 COVID-19 restructuring plan	4
Cash paid	(17)
Foreign currency translation	(1)
Ending balance	38
Severance Costs
Restructuring Reserve [Roll Forward]
Beginning balance	43
Provision for 2020 COVID-19 restructuring plan	0
Cash paid	(13)
Foreign currency translation	(1)
Ending balance	29
Contract Terminations and Others
Restructuring Reserve [Roll Forward]
Beginning balance	9
Provision for 2020 COVID-19 restructuring plan	4
Cash paid	(4)
Foreign currency translation	0
Ending balance	$ 9