Income Taxes - Recon between U.S. Federal Taxes and Statutory Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2022	Sep. 24, 2021	Sep. 25, 2020
Reconciliation between U.S. federal income taxes at the statutory rate and income tax expense (benefit) on continuing operations
Notional U.S. federal income tax expense at the statutory rate	$ 574	$ 499	$ 110
U.S. state income tax benefit, net	(15)	(2)	(26)
Tax law changes	21	12	349
Tax credits	(13)	(13)	(13)
Non-U.S. net earnings	(105)	(71)	(88)
Change in accrued income tax liabilities	(14)	37	30
Valuation allowance	(37)	(353)	231
Legal entity restructuring and intercompany transactions	(123)	19
Divestitures and goodwill impairment			185
Excess tax benefits from share-based payments	(15)	(21)	(6)
Other	33	16	11
Income tax expense	$ 306	$ 123	$ 783
U.S. federal statutory rate	21.00%	21.00%	21.00%