CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jul. 01, 2023	Apr. 01, 2023	Sep. 24, 2022	Jun. 25, 2022	Mar. 26, 2022	Sep. 30, 2023	Sep. 24, 2022
Statement of Comprehensive Income [Abstract]
Net earnings	$ 833			$ 394			$ 3,171	$ 1,640
Other Comprehensive Earnings (Losses) [Abstract]
Unrealized gain (loss) on debt securities net of income taxes	(37)			(119)			(4)	(669)
Reclassification adjustment for net realized gain on debt securities net of income taxes	0			2			0	1
Adjustment to postretirement benefit obligation net of income taxes	0			0			0	1
Comprehensive earnings	$ 796	$ 1,032	$ 1,339	$ 277	$ 454	$ 242	$ 3,167	$ 973