v3.26.1
Retirement and Other Employee Benefits - Pension and Postretirement Health Care Benefits (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2026
Jun. 28, 2025
Jul. 04, 2026
Jun. 28, 2025
Postretirement Health Care Benefits Plan        
Defined Benefit Plan Disclosure [Line Items]        
Interest cost $ 1 $ 2 $ 2 $ 3
Expected return on plan assets (3) (3) (6) (6)
Amortization of:        
Unrecognized net loss 2 2 3 3
Unrecognized prior service cost (benefit) 1 0 2 1
Net periodic pension cost (benefits) 1 1 1 1
U.S. | Pension Benefit Plan        
Defined Benefit Plan Disclosure [Line Items]        
Interest cost 48 50 95 100
Expected return on plan assets (74) (76) (148) (152)
Amortization of:        
Unrecognized net loss 9 6 19 12
Unrecognized prior service cost (benefit) 0 0 0 0
Net periodic pension cost (benefits) (17) (20) (34) (40)
Foreign Plan | Pension Benefit Plan        
Defined Benefit Plan Disclosure [Line Items]        
Interest cost 14 14 28 28
Expected return on plan assets (27) (26) (53) (52)
Amortization of:        
Unrecognized net loss 3 1 7 3
Unrecognized prior service cost (benefit) 0 0 (1) (1)
Net periodic pension cost (benefits) $ (10) $ (11) $ (19) $ (22)