Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,712	$ 1,545
Postretirement benefit plans
Amortization of net actuarial losses and prior service costs (credits), net of tax of $17 million in 2025 and $5 million in 2024	64	19
Other, net, net of tax of $6 million in 2025 and $0 million in 2024	65	(27)
Other comprehensive income (loss), net of tax	129	(8)
Comprehensive income	$ 1,841	$ 1,537