Income Taxes, Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
Oct. 02, 2021	Sep. 26, 2020	Sep. 28, 2019
Income Taxes [Abstract]
U.S. Federal income tax expense at the statutory rate	$ 190	$ 150	$ 103
Adjustments to Reconcile to the Income Tax Provision [Abstract]
U.S. state income tax expense	11	6	9
Federal and state credits	(10)	(14)	(8)
Share-based compensation	(8)	(4)	(12)
Tax law changes	11	0	0
Withholding taxes	13	15	0
Changes in foreign valuation allowance	(14)	(8)	13
Foreign income taxed in the U.S.	12	9	3
Rate differences between U.S. and foreign	(8)	(6)	7
Sale of subsidiary	16	0	(38)
Permanent foreign currency differences	(30)	0	0
Other	(11)	6	9
Expense for income taxes	$ 172	$ 154	$ 86

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the foreign valuation allowance for deferred tax assets.

No definition available.