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Pension and Retiree Medical Benefits - Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 23, 2024
Mar. 25, 2023
Domestic Plan    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Service Cost $ 80 $ 76
Defined Benefit Plan, Interest Cost 135 137
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (201) (197)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) (6) (6)
Defined Benefit Plan, Amortization of Gain (Loss) 18 16
Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits   (1)
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits 7  
Defined Benefit Plan, Other Cost (Credit) (47) (51)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total 33 25
Foreign Plan    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Service Cost 9 8
Defined Benefit Plan, Interest Cost 27 25
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (39) (35)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 0 0
Defined Benefit Plan, Amortization of Gain (Loss) 4 2
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits 0 0
Defined Benefit Plan, Other Cost (Credit) (8) (8)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total 1 0
Retiree Medical Plan    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Service Cost 7 6
Defined Benefit Plan, Interest Cost 7 8
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (3) (3)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) (1) (1)
Defined Benefit Plan, Amortization of Gain (Loss) (6) (6)
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits 0 0
Defined Benefit Plan, Other Cost (Credit) (3) (2)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total $ 4 $ 4