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Significant Accounting Policies Derivatives and Other Hedging Activities (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 29, 2024	Sep. 24, 2023	Sep. 25, 2022
Derivative
Derivative Asset, Fair Value Recorded in Assets	$ 30	$ 32
Derivative Liability, Fair Value Recorded in Liabilities	138	317
Derivative, Notional Amount	$ 5,565	$ 5,149
Net (losses) gains on derivative instruments, Statement of Income or Comprehensive Income	Investment and other income (expense), net	Investment and other income (expense), net	Investment and other income (expense), net
Chinese renminbi
Derivative
Derivative, Notional Amount	$ 1,456	$ 1,333
Indian rupee
Derivative
Derivative, Notional Amount	1,373	1,151
United States dollar
Derivative
Derivative, Notional Amount	2,205	2,181
Other
Derivative
Derivative, Notional Amount	531	484
Forwards
Derivative
Derivative, Notional Amount	2,723	2,432
Options
Derivative
Derivative, Notional Amount	792	667
Swaps
Derivative
Derivative, Notional Amount	$ 2,050	$ 2,050
Foreign Currency Hedges [Member] \| Minimum
Derivative
Derivative, Remaining Maturity	1 month	1 month
Foreign Currency Hedges [Member] \| Maximum
Derivative
Derivative, Remaining Maturity	24 months	24 months