Employee Benefits - Components of Plan Benefit Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Pension | Global Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 6	$ 6	$ 18	$ 23
Interest cost	44	34	132	91
Expected return on plan assets	(54)	(57)	(161)	(200)
Amortization of unrecognized prior service cost (gain)	2	2	7	7
Recognized net (gain) loss	10	(15)	10	(46)
Net periodic benefit cost	8	(30)	6	(125)
Other Nonpension Postretirement | U.S. and Canada
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	2	5	8
Interest cost	11	6	31	18
Expected return on plan assets	(25)	(28)	(73)	(83)
Amortization of unrecognized prior service cost (gain)	(2)	(2)	(7)	(7)
Recognized net (gain) loss	(67)	0	(67)	0
Total plan benefit (income) expense	(81)	(22)	(111)	(64)
Postemployment | Global Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	0	2	2
Interest cost	1	1	2	1
Recognized net (gain) loss	(1)	0	(2)	(2)
Total plan benefit (income) expense	$ 1	$ 1	$ 2	$ 1