Pension and Retiree Medical Benefits - Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 25, 2023	Mar. 19, 2022
Domestic Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	$ 76	$ 114
Defined Benefit Plan, Interest Cost	137	88
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(197)	(215)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(6)	(6)
Defined Benefit Plan, Amortization of Gain (Loss)	16	33
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), (Gain) Loss Due to Settlement	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), (Gain) Loss Due to Curtailment		0
Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits	(1)
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits		6
Defined Benefit Plan, Other Cost (Credit)	(51)	(94)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	25	20
Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	8	17
Defined Benefit Plan, Interest Cost	25	17
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(35)	(42)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	0	0
Defined Benefit Plan, Amortization of Gain (Loss)	2	5
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)	(8)	(20)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total		(3)
Retiree Medical Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	6	8
Defined Benefit Plan, Interest Cost	8	4
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(3)	(3)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(1)	(2)
Defined Benefit Plan, Amortization of Gain (Loss)	(6)	(3)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), (Gain) Loss Due to Curtailment	0	(16)
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits	0	0
Defined Benefit Plan, Other Cost (Credit)	(2)	(20)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	$ 4	$ (12)