v3.25.2
Retirement Plans (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 29, 2025
Jun. 30, 2024
Jun. 29, 2025
Jun. 30, 2024
Pension Benefits        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 17 $ 18 $ 35 $ 37
Interest cost 150 157 299 314
Expected return on plan assets (185) (205) (369) (411)
Net actuarial loss (gain) 27 49 54 98
Prior service (credit) cost (2) (1) (3) (3)
Net periodic benefit cost (credit) 7 18 16 35
Other Post-retirement Benefits        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 1 1 2 2
Interest cost 6 7 13 14
Expected return on plan assets (9) (9) (18) (17)
Net actuarial loss (gain) (8) (8) (16) (16)
Prior service (credit) cost 1 0 1 1
Net periodic benefit cost (credit) $ (9) $ (9) $ (18) $ (16)