Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 25, 2023	Jun. 26, 2022	Jun. 25, 2023	Jun. 26, 2022
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,681	$ 309	$ 3,370	$ 2,042
Postretirement benefit plans
Net actuarial gain recognized due to plan remeasurements, net of tax of $461 million in 2022	0	1,698	0	1,698
Amortization of actuarial losses and prior service credits, net of tax of $10 million and $20 million in 2023 and $15 million and $28 million in 2022	(37)	47	(74)	95
Pension settlement charge, net of tax of $314 million in 2022	0	1,156	0	1,156
Other, net, net of tax of $4 million and $8 million in 2023 and $6 million and $5 million in 2022	44	(90)	18	(111)
Other comprehensive income (loss), net of tax	7	2,811	(56)	2,838
Comprehensive income	$ 1,688	$ 3,120	$ 3,314	$ 4,880