Employee Benefits - Components of Plan Benefit Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Pension | Global Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 8	$ 9	$ 17	$ 18
Interest cost	28	25	57	50
Expected return on plan assets	(72)	(77)	(143)	(155)
Amortization of unrecognized prior service cost (gain)	3	2	5	4
Recognized net (gain) loss	(10)	(11)	(31)	(20)
Total plan benefit (income) expense	(43)	(52)	(95)	(103)
Other Nonpension Postretirement | U.S. and Canada
Defined Benefit Plan Disclosure [Line Items]
Service cost	3	3	6	6
Interest cost	6	5	12	10
Expected return on plan assets	(27)	(23)	(55)	(46)
Amortization of unrecognized prior service cost (gain)	(3)	(2)	(5)	(4)
Total plan benefit (income) expense	(21)	(17)	(42)	(34)
Postemployment | Global Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1	2	2
Recognized net (gain) loss	(1)	(1)	(2)	(2)
Total plan benefit (income) expense	$ 0	$ 0	$ 0	$ 0