Pension and Retiree Medical Benefits - Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 15, 2024	Jun. 17, 2023	Jun. 15, 2024	Jun. 17, 2023
Domestic Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	$ 80	$ 75	$ 160	$ 151
Defined Benefit Plan, Interest Cost	135	137	270	274
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(202)	(196)	(403)	(393)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(5)	(6)	(11)	(12)
Defined Benefit Plan, Amortization of Gain (Loss)	18	16	36	32
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), (Gain) Loss Due to Settlement	0	0	0	0
Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits				(1)
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits	8	0	15
Defined Benefit Plan, Other Cost (Credit)	(46)	(49)	(93)	(100)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	34	26	67	51
Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	12	10	21	18
Defined Benefit Plan, Interest Cost	36	34	63	59
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(50)	(46)	(89)	(81)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(1)	0	(1)	0
Defined Benefit Plan, Amortization of Gain (Loss)	5	3	9	5
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), (Gain) Loss Due to Settlement	2		2
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	0	0
Defined Benefit Plan, Other Cost (Credit)	(8)	(9)	(16)	(17)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	4	1	5	1
Retiree Medical Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	8	7	15	13
Defined Benefit Plan, Interest Cost	8	9	15	17
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(3)	(3)	(6)	(6)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(1)	(2)	(2)	(3)
Defined Benefit Plan, Amortization of Gain (Loss)	(6)	(6)	(12)	(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)	(2)	(2)	(5)	(4)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Total	$ 6	$ 5	$ 10	$ 9