Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 25, 2023	Jun. 30, 2024	Jun. 25, 2023
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,641	$ 1,681	$ 3,186	$ 3,370
Postretirement benefit plans
Amortization of actuarial losses and prior service credits, net of tax of $5 million and $10 million in 2024 and $10 million and $20 million in 2023	19	(37)	38	(74)
Other, net, net of tax of $8 million in 2024 and $4 million and $8 million in 2023	23	44	(4)	18
Other comprehensive income (loss), net of tax	42	7	34	(56)
Comprehensive income	$ 1,683	$ 1,688	$ 3,220	$ 3,314