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Pension and Retiree Medical Benefits Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 19, 2022
Mar. 20, 2021
Domestic Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Service Cost $ 114 $ 120
Defined Benefit Plan, Interest Cost 88 75
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (215) (224)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) (6) (7)
Defined Benefit Plan, Amortization of Gain (Loss) 33 51
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment 0 0
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits 6 6
Defined Benefit Plan, Other Cost (Credit) (94) (99)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) 20 21
Foreign Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Service Cost 17 19
Defined Benefit Plan, Interest Cost 17 13
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (42) (41)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 0 0
Defined Benefit Plan, Amortization of Gain (Loss) 5 13
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment 0 0
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits 0 0
Defined Benefit Plan, Other Cost (Credit) (20) (15)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) (3) 4
Retiree Medical Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Service Cost 8 8
Defined Benefit Plan, Interest Cost 4 3
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (3) (4)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) (2) (2)
Defined Benefit Plan, Amortization of Gain (Loss) (3) (3)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment (16) 0
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits 0 0
Defined Benefit Plan, Other Cost (Credit) (20) (6)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) $ (12) $ 2