Composition of Certain Financial Statement Items Investment and Other Income (Expense), Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 30, 2025	Mar. 24, 2024	Mar. 30, 2025	Mar. 24, 2024
Investment Income, Net [Abstract]
Interest and dividend income	$ 167	$ 160	$ 336	$ 312
Net gains (losses) on marketable securities	18	(3)	37	8
Net (losses) gains on other investments	(5)	155	26	159
Net (losses) gains on deferred compensation plan assets	(34)	62	(20)	126
Impairment losses on other investments	(16)	(50)	(41)	(62)
Other	18	6	53	(1)
Investment and other income, net	$ 148	$ 330	$ 391	$ 542