Employee Benefits - Components of Plan Benefit Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2022	Apr. 03, 2021
Pension | Global Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 9	$ 9
Interest cost	29	25
Expected return on plan assets	(71)	(78)
Amortization of unrecognized prior service cost (gain)	2	2
Recognized net (gain) loss	(21)	(9)
Total plan benefit (income) expense	(52)	(51)
Other Nonpension Postretirement | U.S. and Canada
Defined Benefit Plan Disclosure [Line Items]
Service cost	3	3
Interest cost	6	5
Expected return on plan assets	(28)	(23)
Amortization of unrecognized prior service cost (gain)	(2)	(2)
Total plan benefit (income) expense	(21)	(17)
Postemployment | Global Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1
Recognized net (gain) loss	(1)	(1)
Total plan benefit (income) expense	$ 0	$ 0