Composition of Certain Financial Statement Items Investment and Other Income (Expense), Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 24, 2024	Mar. 26, 2023	Mar. 24, 2024	Mar. 26, 2023
Investment Income, Net [Abstract]
Interest and dividend income	$ 160	$ 59	$ 312	$ 114
Net (losses) gains on marketable securities	(3)	9	8	20
Net gains on other investments	155	0	159	0
Net gains on deferred compensation plan assets	62	21	126	47
Impairment losses on other investments	(50)	(87)	(62)	(101)
Other	6	(18)	(1)	(20)
Investment and other income (expense), net	$ 330	$ (16)	$ 542	$ 60