Retirement and Other Employee Benefits - Pension and Postretirement Health Care Benefits (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Postretirement Health Care Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	2	2	3	3
Expected return on plan assets	(3)	(3)	(6)	(6)
Amortization of:
Unrecognized net loss	1	1	2	2
Unrecognized prior service cost	1	1	2	2
Net periodic pension cost (benefits)	1	1	1	1
U.S. | Pension Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	47	47	94	94
Expected return on plan assets	(74)	(73)	(149)	(146)
Amortization of:
Unrecognized net loss	6	5	12	10
Unrecognized prior service cost	0	0	0	0
Net periodic pension cost (benefits)	(21)	(21)	(43)	(42)
Foreign Plan | Pension Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	14	2	28	4
Expected return on plan assets	(26)	(15)	(51)	(30)
Amortization of:
Unrecognized net loss	1	9	3	18
Unrecognized prior service cost	0	0	(1)	0
Net periodic pension cost (benefits)	$ (11)	$ (4)	$ (21)	$ (8)