v3.25.2
Pensions and Other Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 29, 2025
Jun. 30, 2024
Jun. 29, 2025
Jun. 30, 2024
Retirement Plans        
Components of net periodic benefit cost        
Service cost $ 219 $ 222 $ 433 $ 446
Interest cost 356 351 707 703
Expected return on plan assets (599) (639) (1,186) (1,281)
Amortization of prior service cost/‍(credit) (46) (46) (92) (92)
Recognized actuarial (gains)/losses 85 44 168 87
Curtailments and settlements 0 (8) 0 (8)
Special termination benefits 1 0 1 0
Net periodic benefit cost/(credit) 16 (76) 31 (145)
Other Benefit Plans        
Components of net periodic benefit cost        
Service cost 72 69 144 138
Interest cost 53 52 107 104
Expected return on plan assets (1) (1) (3) (3)
Amortization of prior service cost/‍(credit) (1) (1) (1) (1)
Recognized actuarial (gains)/losses 15 13 31 26
Curtailments and settlements 0 0 0 0
Special termination benefits 0 0 0 0
Net periodic benefit cost/(credit) $ 138 $ 132 $ 278 $ 264