Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 29, 2026	Mar. 30, 2025
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,488	$ 1,712
Retirement benefits
Amortization of net actuarial losses and prior service costs, net of tax of $16 million in 2026 and $17 million in 2025	62	64
Other, net of tax of $1 million in 2026 and $6 million in 2025	(16)	65
Other comprehensive income, net of tax	46	129
Comprehensive income	$ 1,534	$ 1,841