Income Tax Expense / (Benefit) (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Oct. 01, 2022
Current
Federal	$ 1,393	$ 1,475	$ 436
State	237	402	282
Foreign	973	867	846
Current Income Tax Expense (Benefit), Total	2,603	2,744	1,564
Deferred
Federal	(764)	(1,180)	407
State	54	4	26
Foreign	(97)	(189)	(265)
Deferred Income Tax Expense (Benefit), Total	(807)	(1,365)	168
Income tax expense from continuing operations	1,796	1,379	1,732
Income Tax Expense (Benefit), Discontinued Operation	0	0	(14)
Income Tax Expense (Benefit), Continuing Operations, Discontinued Operations	$ 1,796	$ 1,379	$ 1,718