Pension and Retiree Medical Benefits - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 25, 2023	Mar. 19, 2022	Sep. 09, 2023
Domestic Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 125	$ 75
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), (Gain) Loss Due to Settlement	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	25	20
Domestic Plan | Forecast
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year			$ 125
Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 17	10
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)		$ (3)