Pension and Retiree Medical Benefits Narrative (Details) - USD ($) $ in Millions	6 Months Ended		12 Months Ended
	Jun. 12, 2021	Jun. 13, 2020	Dec. 31, 2021	Aug. 31, 2021
Domestic Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer, Discretionary		$ 150
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 300
Domestic Plan [Member] | Forecast
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year				$ 200
Pension Cost (Reversal of Cost)			$ (70)
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer, Discretionary		$ 14
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 25
Defined Benefit Plan, Funded Plan | Forecast
Defined Benefit Plan Disclosure [Line Items]
Pension Cost (Reversal of Cost)			$ 45