Debt Long-term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 29, 2024	Sep. 24, 2023	Sep. 25, 2022
Long-term Debt [Abstract]
Repayment of long-term debt	$ 914	$ 1,446	$ 1,540
Long-term debt, Principal amount	14,972	15,886
Unamortized discount including debt issuance costs	(212)	(238)
Hedge accounting adjustments	(126)	(250)
Debt, Long-term and Short-term, Combined Amount	14,634	15,398
Long-term debt, Current Maturities	1,364	914
Long-term Debt, Excluding Current Maturities	13,270	14,484
Future principal payments, Fiscal 2025	1,400
Future principal payments, Fiscal 2026	0
Future principal payments, Fiscal 2027	2,000
Future principal payments, Fiscal 2028	1,000
Future principal payments, Fiscal 2029	0
Future principal payments, after Fiscal 2029	10,600
Long-term Debt, Fair value	14,300
Interest paid related to commercial paper and long-term debt, net of cash received from the related interest rate swaps	656	614	$ 491
Fixed rate notes due May 2024
Long-term Debt [Abstract]
Repayment of long-term debt	914
May 2015 Notes
Long-term Debt [Abstract]
Long-term debt, Principal amount	$ 3,865	$ 3,865
Debt Instrument Maturity Date Range Start	2025	2025
Debt Instrument Maturity Date Range End	2045	2045
May 2015 Notes | Minimum
Long-term Debt [Abstract]
Long-term debt, Effective Interest Rate	3.45%	3.46%
May 2015 Notes | Maximum
Long-term Debt [Abstract]
Long-term debt, Effective Interest Rate	4.72%	4.73%
May 2017 Notes
Long-term Debt [Abstract]
Long-term debt, Principal amount	$ 3,500	$ 4,414
Debt Instrument Maturity Date Range Start	2027	2024
Debt Instrument Maturity Date Range End	2047	2047
May 2017 Notes | Minimum
Long-term Debt [Abstract]
Long-term debt, Effective Interest Rate	3.81%	3.00%
May 2017 Notes | Maximum
Long-term Debt [Abstract]
Long-term debt, Effective Interest Rate	4.45%	4.45%
May 2020 Notes
Long-term Debt [Abstract]
Long-term debt, Principal amount	$ 2,000	$ 2,000
Debt Instrument Maturity Date Range Start	2030	2030
Debt Instrument Maturity Date Range End	2050	2050
May 2020 Notes | Minimum
Long-term Debt [Abstract]
Long-term debt, Effective Interest Rate	2.84%	3.22%
May 2020 Notes | Maximum
Long-term Debt [Abstract]
Long-term debt, Effective Interest Rate	3.30%	3.30%
August 2020 Notes
Long-term Debt [Abstract]
Long-term debt, Principal amount	$ 2,207	$ 2,207
Debt Instrument Maturity Date Range Start	2028	2028
Debt Instrument Maturity Date Range End	2032	2032
August 2020 Notes | Minimum
Long-term Debt [Abstract]
Long-term debt, Effective Interest Rate	2.37%	2.65%
August 2020 Notes | Maximum
Long-term Debt [Abstract]
Long-term debt, Effective Interest Rate	3.39%	3.89%
May 2022 Notes
Long-term Debt [Abstract]
Long-term debt, Principal amount	$ 1,500	$ 1,500
Debt Instrument Maturity Date Range Start	2032	2032
Debt Instrument Maturity Date Range End	2052	2052
May 2022 Notes | Minimum
Long-term Debt [Abstract]
Long-term debt, Effective Interest Rate	3.17%	3.15%
May 2022 Notes | Maximum
Long-term Debt [Abstract]
Long-term debt, Effective Interest Rate	4.28%	4.27%
November 2022 Notes
Long-term Debt [Abstract]
Long-term debt, Principal amount	$ 1,900	$ 1,900
Debt Instrument Maturity Date Range Start	2033	2033
Debt Instrument Maturity Date Range End	2053	2053
November 2022 Notes | Minimum
Long-term Debt [Abstract]
Long-term debt, Effective Interest Rate	3.50%	3.47%
November 2022 Notes | Maximum
Long-term Debt [Abstract]
Long-term debt, Effective Interest Rate	5.07%	5.02%