Share Plans (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Dec. 29, 2023	Dec. 30, 2022
Share Based Compensation Arrangements:
Share-based compensation expense	$ 34	$ 32
Shares available for issuance	6.0
Share Based Compensation Expenses Not Recognized
Share-based compensation, share-based awards, total compensation expense not yet recognized	$ 211
Share-based compensation, share-based awards, total compensation expense not yet recognized, expected period for recognition	1 year 10 months 24 days
Employee Stock Option [Member]
Share Based Compensation Arrangements:
Share options granted	0.9
Options granted, grant-date fair value (in dollars per share)	$ 39.77
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology
Expected share price volatility (as a percent)	31.00%
Risk-free interest rate (as a percent)	4.60%
Expected annual dividend per share	$ 2.36
Expected life of options (in years)	5 years 3 months 18 days
Restricted share awards
Share Based Compensation Arrangements:
Shares granted	0.4
Shares granted, grant-date fair value (in dollars per share)	$ 131.77
Performance share awards
Share Based Compensation Arrangements:
Shares granted	0.2
Shares granted, grant-date fair value (in dollars per share)	$ 131.77