v3.26.1
Pension and Retiree Medical Benefits - Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 13, 2026
Jun. 14, 2025
Jun. 13, 2026
Jun. 14, 2025
Domestic Plan        
Defined Benefit Plan Disclosure [Line Items]        
Defined Benefit Plan, Service Cost $ 54 $ 73 $ 108 $ 145
Defined Benefit Plan, Interest Cost 120 135 240 270
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (191) (186) (382) (372)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 2 0 4 1
Defined Benefit Plan, Amortization of Gain (Loss) 17 20 34 39
Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits 0 (2)    
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits     1 14
Defined Benefit Plan, Other Cost (Credit) (52) (33) (103) (48)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total 2 40 5 97
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement 0 0 0 0
Foreign Plan        
Defined Benefit Plan Disclosure [Line Items]        
Defined Benefit Plan, Service Cost 13 11 23 19
Defined Benefit Plan, Interest Cost 37 36 65 62
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (51) (47) (90) (83)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 0 0 0 0
Defined Benefit Plan, Amortization of Gain (Loss) 8 6 14 10
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits 0 0 0 0
Defined Benefit Plan, Other Cost (Credit) (6) (6) (11) (12)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total 7 5 12 7
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement 0 1 0 1
Retiree Medical Plan        
Defined Benefit Plan Disclosure [Line Items]        
Defined Benefit Plan, Service Cost 9 7 17 14
Defined Benefit Plan, Interest Cost 6 7 12 14
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (2) (3) (4) (5)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) (1) (1) (2) (2)
Defined Benefit Plan, Amortization of Gain (Loss) (4) (6) (9) (12)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), (Gain) Loss Due to Curtailment 0 0 0 0
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits 0 0 0 0
Defined Benefit Plan, Other Cost (Credit) (1) (3) (3) (5)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total $ 8 $ 4 $ 14 $ 9